event: add GetFramesRegisteredForEvent(event)

Returns the frames currently subscribed to an event as multiple return
values (retail's vararg signature). Reads the engine's own subscriber
chain off the event-table entry (entry+0xC head; node next @+0x04,
frame @+0x08, low-bit/null end sentinel) — the exact list
frame:RegisterEvent appends to, so it stays in sync with real
registrations, including AutoReserve custom events. Each frame is
pushed via the shared UI::FrameObject wrapper so frame methods work.
A counting pass drives lua_checkstack up front against heavily
subscribed events.

.github/workflows/build.yml

@@ -0,0 +1,51 @@
+name: Build
+
+on:
+  push:
+    branches: ['**']
+    tags: ['v*']
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Stamp embedded TOC version
+        if: startsWith(github.ref, 'refs/tags/v')
+        shell: pwsh
+        run: |
+          $version = '${{ github.ref_name }}' -replace '^v',''
+          $toc = 'AddOns/!!!ClassicAPI/!!!ClassicAPI.toc'
+          (Get-Content $toc) -replace '^## Version:.*', "## Version: $version" |
+            Set-Content $toc
+
+      - name: Configure (tag)
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: cmake -B build -A Win32 "-DCLASSICAPI_TAG=${{ github.ref_name }}"
+
+      - name: Configure (branch)
+        if: "!startsWith(github.ref, 'refs/tags/v')"
+        run: cmake -B build -A Win32
+
+      - name: Build
+        run: cmake --build build --config Release
+
+      - name: Upload artifact
+        if: "!startsWith(github.ref, 'refs/tags/v')"
+        uses: actions/upload-artifact@v4
+        with:
+          name: ClassicAPI-${{ github.sha }}
+          path: build/Release/ClassicAPI.dll
+
+      - name: Release
+        if: startsWith(github.ref, 'refs/tags/v')
+        uses: softprops/action-gh-release@v2
+        with:
+          files: build/Release/ClassicAPI.dll
+          generate_release_notes: true

.github/workflows/release.yml

@@ -1,48 +0,0 @@
-name: Release
-
-on:
-  push:
-    tags:
-      - 'v*'
-
-permissions:
-  contents: write
-
-jobs:
-  build:
-    runs-on: windows-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: recursive
-
-      - name: Configure
-        run: cmake -B build -A Win32 "-DCLASSICAPI_TAG=${{ github.ref_name }}"
-
-      - name: Build
-        run: cmake --build build --config Release
-
-      - name: Stage release bundle
-        shell: pwsh
-        run: |
-          $tag = '${{ github.ref_name }}'
-          $version = $tag -replace '^v',''
-          $stage = "ClassicAPI-$tag"
-          New-Item -ItemType Directory -Force -Path $stage | Out-Null
-          Copy-Item build/Release/ClassicAPI.dll $stage
-          Copy-Item -Recurse 'AddOns/!!!ClassicAPI' $stage
-          # Stamp the addon's TOC version line from the tag (drops the leading `v`)
-          $toc = Join-Path $stage '!!!ClassicAPI/!!!ClassicAPI.toc'
-          (Get-Content $toc) -replace '^## Version:.*', "## Version: $version" |
-            Set-Content $toc
-          Compress-Archive -Path "$stage/*" -DestinationPath "ClassicAPI-Bundle-$tag.zip"
-          Compress-Archive -Path "$stage/!!!ClassicAPI" -DestinationPath "ClassicAPI-AddOnOnly-$tag.zip"
-
-      - name: Release
-        uses: softprops/action-gh-release@v2
-        with:
-          files: |
-            ClassicAPI-Bundle-${{ github.ref_name }}.zip
-            ClassicAPI-AddOnOnly-${{ github.ref_name }}.zip
-            ClassicAPI-${{ github.ref_name }}/ClassicAPI.dll
-          generate_release_notes: true

AddOns/!!!ClassicAPI/!!!ClassicAPI.toc

@@ -1,29 +1,40 @@
 ## Interface: 11200
 ## Title: !!!ClassicAPI
 ## Notes: Library to emulate aspects of the modern WoW API on 1.12.1 / Lua 5.0.
-## Version: 1.0
+## Version: DEV
 ## Author: Brues
+## X-Website: https://github.com/brues-code/ClassicAPI
+
+locales\locales.xml
 
-GlobalStrings.lua
 Compat.lua
 Util\Print.lua
-Util\Constants.lua
-Util\String.lua
 Util\Mixin.lua
+Util\Color.lua
+Util\Constants.lua
 Util\TableUtil.lua
 Util\MathUtil.lua
+Util\PixelUtil.lua
+Util\FrameUtil.lua
+Util\FormattingUtil.lua
+Util\TimeUtil.lua
 Util\CallbackRegistry.lua
 Util\GlobalCallbackRegistry.lua
-Util\Color.lua
 Util\ColorUtil.lua
 Util\ItemLocation.lua
+Util\PlayerLocation.lua
 Util\EventUtil.lua
 Util\ItemUtil.lua
 Util\AddOnCompat.lua
 Util\FunctionUtil.lua
+Util\CacheUtil.lua
 Util\Pools.lua
 Util\FrameWatcher.lua
 Util\TimedCallback.lua
 Util\EquipmentManager.lua
 Util\PlayerUtil.lua
 Util\SlashCommandsRegistry.lua
+Util\LinkUtil.lua
+Util\TradeSkillLink.lua
+Util\IconDataProvider.lua
+Util\GameTooltip.lua

AddOns/!!!ClassicAPI/GlobalStrings.lua

@@ -1,6 +0,0 @@
-ITEMS_VARIABLE_QUANTITY = "%d |4Item:Items;";
-ITEMS_EQUIPPED = "%d |4item:items; equipped";
-ITEMS_IN_INVENTORY = "%d |4item:items; in inventory";
-ITEM_SLOTS_IGNORED = "%d |4slot:slots; ignored";
-ITEM_MISSING = "%s missing";
-ITEMS_NOT_IN_INVENTORY = "%d |4item:items; missing";

AddOns/!!!ClassicAPI/Util/AddOnCompat.lua

@@ -8,5 +8,38 @@ if C_AddOns.DoesAddOnExist('pfUI') then
             unknownColor.colorStr = unknownColor:GenerateHexColor()
             return unknownColor
         end})
+
+        -- Compatibility with OLDER forks of pfUI. Our DLL adds the modern
+        -- HookScript widget method; older pfUI forks branch on
+        -- `if button.HookScript` and take a modern code path they were never
+        -- written for on their pfActionBar buttons, which breaks them. While
+        -- the actionbar module builds those buttons, temporarily wrap
+        -- CreateFrame to shadow HookScript with a falsy field so those forks
+        -- fall back to their vanilla SetScript path. The maintained "brues"
+        -- fork handles HookScript itself, so it's detected via the TOC
+        -- X-Website tag and left alone. The wrapper is removed as soon as the
+        -- actionbar module finishes loading so it affects nothing else.
+        local website = GetAddOnMetadata("pfUI", "X-Website")
+        if not website or not strfind(website, 'brues') then
+            local _createFrame = CreateFrame
+            local HookedCreateFrame = function(frameType, name, parent, template)
+                local frame = _createFrame(frameType, name, parent, template)
+                if frameType == "Button" and strfind(name or "", "pfActionBar") then
+                    frame.HookScript = false
+                end
+                return frame
+            end
+            hooksecurefunc(pfUI, 'LoadModule', function(frame, moduleName)
+                if moduleName == "updatenotify" then
+                    CreateFrame = HookedCreateFrame
+                elseif moduleName == "actionbar" then
+                    CreateFrame = _createFrame
+                end
+            end)
+        end
     end)
-end
+end
+
+if C_AddOns.DoesAddOnExist("SpecialTalentUI") then
+    EventUtil.ContinueOnAddOnLoaded("SpecialTalentUI", CAPI_ApplyStandardColorGlobals)
+end

AddOns/!!!ClassicAPI/Util/CacheUtil.lua

@@ -0,0 +1,88 @@
+-- On-demand, throttled cache warmer (/warmcache). A brute-force scan of the
+-- whole ID space floods the client's network buffers and panics in
+-- WDataStoreSmallBuffer ("not enough memory") — the engine can't hold that
+-- many pending queries. So this warms a *bounded* range, started/stopped
+-- manually, at a low fixed rate. Tune WARM_RATE / WARM_INTERVAL if needed,
+-- but keep it modest. Note: IDs the server doesn't know (gaps in the range)
+-- get no response, so their pending entries linger — warm ranges you expect
+-- to be mostly real, not arbitrary millions.
+--
+--   /warmcache item 1 40000     warm item IDs 1..40000
+--   /warmcache <type> <a> <b>   type = item | quest | creature | object | all
+--   /warmcache stop             abort an in-progress warm
+local WARM_RATE = 20      -- IDs queued per tick
+local WARM_INTERVAL = 0.2 -- seconds between ticks  (-> ~20 IDs/sec)
+
+local WARM_FN = {
+	item     = function(id) C_Item.RequestLoadItemDataByID(id) end,
+	quest    = function(id) C_QuestLog.RequestLoadQuestByID(id) end,
+	creature = function(id) C_CreatureInfo.RequestLoadCreatureByID(id) end,
+	object   = function(id) C_GameObjectInfo.RequestLoadGameObjectByID(id) end,
+	all      = function(id)
+					C_QuestLog.RequestLoadQuestByID(id)
+					C_Item.RequestLoadItemDataByID(id)
+					C_CreatureInfo.RequestLoadCreatureByID(id)
+					C_GameObjectInfo.RequestLoadGameObjectByID(id)
+			end,
+}
+
+local warm = { running = false, cancel = false }
+
+local function warm_msg(s)
+	DEFAULT_CHAT_FRAME:AddMessage("|cff66ccff[WarmCache]|r " .. s)
+end
+
+local function warm_step(fn, id, stop, lastMsg)
+	if warm.cancel then
+		warm.running = false
+		warm_msg("stopped at " .. (id - 1))
+		return
+	end
+	local n = 0
+	while n < WARM_RATE and id <= stop do
+		fn(id)
+		n = n + 1
+		id = id + 1
+	end
+	if id > stop then
+		warm.running = false
+		warm_msg("done (through " .. stop .. ")")
+	else
+		if (id - 1) - lastMsg >= 1000 then
+			warm_msg((id - 1) .. " / " .. stop .. " ...")
+			lastMsg = id - 1
+		end
+		C_Timer.After(WARM_INTERVAL, function() warm_step(fn, id, stop, lastMsg) end)
+	end
+end
+
+SLASH_WARMCACHE1 = "/warmcache"
+SlashCmdList["WARMCACHE"] = function(msg)
+	local args = {}
+	for tok in string.gmatch(msg or "", "%S+") do
+		table.insert(args, string.lower(tok))
+	end
+	local cmd = args[1]
+
+	if cmd == "stop" then
+		if warm.running then warm.cancel = true else warm_msg("not running") end
+		return
+	end
+	if warm.running then
+		warm_msg("already running - /warmcache stop first")
+		return
+	end
+
+	local fn = WARM_FN[cmd]
+	local a, b = tonumber(args[2]), tonumber(args[3])
+	if not fn or not a or not b or a < 1 or b < a then
+		warm_msg("usage: /warmcache item|quest|creature|object|all <startID> <stopID>")
+		warm_msg("       /warmcache stop")
+		return
+	end
+
+	warm.running, warm.cancel = true, false
+	warm_msg(string.format("warming %s %d..%d (~%d/sec, /warmcache stop to abort)",
+		cmd, a, b, math.floor(WARM_RATE / WARM_INTERVAL)))
+	warm_step(fn, a, b, a - 1)
+end

AddOns/!!!ClassicAPI/Util/Color.lua

@@ -10,11 +10,14 @@ function ColorMixin:OnLoad(r, g, b, a)
     self:SetRGBA(r, g, b, a)
 end
 
-function ColorMixin:IsEqualTo(otherColor)
+function ColorMixin:IsRGBEqualTo(otherColor)
     return self.r == otherColor.r
         and self.g == otherColor.g
         and self.b == otherColor.b
-        and self.a == otherColor.a
+end
+
+function ColorMixin:IsEqualTo(otherColor)
+    return self:IsRGBEqualTo(otherColor) and self.a == otherColor.a
 end
 
 function ColorMixin:GetRGB()
@@ -52,6 +55,39 @@ function ColorMixin:GenerateHexColorMarkup()
     return "|c"..self:GenerateHexColor()
 end
 
+function ColorMixin:GenerateHexColorNoAlpha()
+    return string.format("%.2x%.2x%.2x", self:GetRGBAsBytes())
+end
+
+function ColorMixin:GetHSL()
+    local r, g, b, a = self.r, self.g, self.b, self.a
+    local max, min = math.max(r, g, b), math.min(r, g, b)
+    local h, s, l
+    l = (max + min) / 2
+    if max == min then
+        h, s = 0, 0 -- achromatic
+    else
+        local d = max - min
+        if l > 0.5 then
+            s = d / (2 - max - min)
+        else
+            s = d / (max + min)
+        end
+        if max == r then
+            h = (g - b) / d
+            if g < b then
+                h = h + 6
+            end
+        elseif max == g then
+            h = (b - r) / d + 2
+        elseif max == b then
+            h = (r - g) / d + 4
+        end
+        h = h / 6
+    end
+    return h, s, l, a or 1
+end
+
 function ColorMixin:WrapTextInColorCode(text)
     return WrapTextInColorCode(text, self:GenerateHexColor())
 end
@@ -60,6 +96,10 @@ function WrapTextInColorCode(text, colorHexString)
     return string.format("|c%s%s|r", colorHexString, text)
 end
 
+function WrapTextInColor(text, color)
+    return WrapTextInColorCode(text, color:GenerateHexColor())
+end
+
 function ColorMixin:WrapTextInColorTableCode(text)
     return WrapTextInColorCode(text, self:GenerateHexColor())
 end
@@ -68,11 +108,14 @@ for _, v in pairs(ITEM_QUALITY_COLORS) do
     v.color = CreateColor(v.r, v.g, v.b, 1)
 end
 
-do
+function CAPI_ApplyStandardColorGlobals()
     local envTbl = _G
     for _, dbColor in ipairs(C_UIColor.GetColors()) do
-        local color = CreateColor(dbColor.color.r, dbColor.color.g, dbColor.color.b, dbColor.color.a)
-        envTbl[dbColor.baseTag] = color
-        envTbl[dbColor.baseTag.."_CODE"] = color:GenerateHexColorMarkup()
+        if not envTbl[dbColor.baseTag] or not envTbl[dbColor.baseTag].GetRGB then
+            local color = CreateColor(dbColor.color.r, dbColor.color.g, dbColor.color.b, dbColor.color.a)
+            envTbl[dbColor.baseTag] = color
+            envTbl[dbColor.baseTag.."_CODE"] = color:GenerateHexColorMarkup()
+        end
     end
 end
+CAPI_ApplyStandardColorGlobals()

AddOns/!!!ClassicAPI/Util/ColorUtil.lua

@@ -20,6 +20,24 @@ function CreateColorFromHexString(hexColor)
 	end
 end
 
+function CreateColorFromRGBAHexString(hexColor)
+	if string.len(hexColor) == 8 then
+		local r, g, b, a = ExtractColorValueFromHex(hexColor, 1), ExtractColorValueFromHex(hexColor, 3), ExtractColorValueFromHex(hexColor, 5), ExtractColorValueFromHex(hexColor, 7);
+		return CreateColor(r, g, b, a);
+	else
+		error("CreateColorFromRGBAHexString input must be hexadecimal digits in this format: RRGGBBAA.", 2);
+	end
+end
+
+function CreateColorFromRGBHexString(hexColor)
+	if string.len(hexColor) == 6 then
+		local r, g, b = ExtractColorValueFromHex(hexColor, 1), ExtractColorValueFromHex(hexColor, 3), ExtractColorValueFromHex(hexColor, 5);
+		return CreateColor(r, g, b, 1);
+	else
+		error("CreateColorFromRGBHexString input must be hexadecimal digits in this format: RRGGBB.", 2);
+	end
+end
+
 function CreateColorFromBytes(r, g, b, a)
 	return CreateColor(r / 255, g / 255, b / 255, a / 255);
 end
@@ -31,6 +49,10 @@ function AreColorsEqual(left, right)
 	return left == right;
 end
 
+function IsRGBAEqualToColor(r, g, b, a, color)
+	return (color.r == r) and (color.g == g) and (color.b == b) and (color.a == a);
+end
+
 function GetClassColor(classFilename)
 	local color = RAID_CLASS_COLORS[classFilename];
 	if color then
@@ -46,7 +68,23 @@ end
 function GetClassColoredTextForUnit(unit, text)
 	local _, classFilename = UnitClass(unit);
 	local color = GetClassColorObj(classFilename);
-	if (color) then 
+	if (color) then
 		return color:WrapTextInColorCode(text);
 	end
 end
+
+function GetFactionColor(factionGroupTag)
+	-- Both PLAYER_FACTION_GROUP (tag -> index) and PLAYER_FACTION_COLORS
+	-- (index -> color) live in our Constants.lua. Guarded defensively in
+	-- case a client variant leaves one unset.
+	local group = PLAYER_FACTION_GROUP[factionGroupTag];
+	return PLAYER_FACTION_COLORS and PLAYER_FACTION_COLORS[group];
+end
+
+function RGBToColorCode(r, g, b)
+	return string.format("|cff%.2x%.2x%.2x", r * 255, g * 255, b * 255);
+end
+
+function RGBTableToColorCode(rgbTable)
+	return RGBToColorCode(rgbTable.r, rgbTable.g, rgbTable.b);
+end

AddOns/!!!ClassicAPI/Util/Constants.lua

@@ -27,13 +27,12 @@ INVSLOT_BACK		= 15;
 INVSLOT_MAINHAND	= 16;
 INVSLOT_OFFHAND		= 17;
 INVSLOT_RANGED		= 18;
-INVSLOT_TABARD		= 19;
-INVSLOT_LAST_EQUIPPED = INVSLOT_TABARD;
+INVSLOT_TABARD		= 19; INVSLOT_LAST_EQUIPPED = INVSLOT_TABARD;
 
 INVSLOTS_EQUIPABLE_IN_COMBAT = {
-[INVSLOT_MAINHAND] = true,
-[INVSLOT_OFFHAND] = true,
-[INVSLOT_RANGED] = true,
+	[INVSLOT_MAINHAND] = true,
+	[INVSLOT_OFFHAND] = true,
+	[INVSLOT_RANGED] = true,
 }
 
 -- Item IDs
@@ -106,19 +105,23 @@ BAG_ITEM_QUALITY_COLORS =
 };
 
 -- faction
+PLAYER_FACTION_GROUP = { [0] = "Horde", [1] = "Alliance", Horde = 0, Alliance = 1 };
+
+FACTION_LABELS = {
+	[0] = FACTION_HORDE,
+	[1] = FACTION_ALLIANCE,
+};
+
+FACTION_LABELS_FROM_STRING = {
+	["Horde"] = FACTION_HORDE,
+	["Alliance"] = FACTION_ALLIANCE,
+}
+
 PLAYER_FACTION_COLORS =
-{ 
+{
 	[0] = PLAYER_FACTION_COLOR_HORDE,
 	[1] = PLAYER_FACTION_COLOR_ALLIANCE,
-};-- Quest
-
-WOW_PROJECT_MAINLINE = 1;
-WOW_PROJECT_CLASSIC = 2;
-WOW_PROJECT_BURNING_CRUSADE_CLASSIC = 5;
-WOW_PROJECT_WRATH_CLASSIC = 11;
-WOW_PROJECT_CATACLYSM_CLASSIC = 14;
-WOW_PROJECT_MISTS_CLASSIC = 19;
-WOW_PROJECT_ID = WOW_PROJECT_CLASSIC;
+};
 
 --
 -- Glyph

AddOns/!!!ClassicAPI/Util/EventUtil.lua

@@ -83,12 +83,11 @@ function EventUtil.TriggerOnVariablesLoaded()
 end
 
 function EventUtil.ContinueOnAddOnLoaded(addOnName, callback)
-    -- 1.12's IsAddOnLoaded returns a single bool. 3.3.5 split that into
-    -- (isLoadedOrLoading, isLoaded); treat truthy as "ready to use".
-    if IsAddOnLoaded(addOnName) then
-        callback()
-        return
-    end
+	local isLoadedOrLoading, isLoaded = C_AddOns.IsAddOnLoaded(addOnName)
+	if isLoaded then
+		callback();
+		return;
+	end
 
     EventUtil.RegisterOnceFrameEventAndCallback("ADDON_LOADED", callback, addOnName)
 end

AddOns/!!!ClassicAPI/Util/FormattingUtil.lua

@@ -0,0 +1,108 @@
+-- Backport of FrameXML/FormattingUtil.lua (feasible subset) to vanilla
+-- 1.12 / Lua 5.0.
+--
+-- 5.0 notes: no `#`/`%`/string-method syntax — uses string.*, math.mod.
+-- The currency/cost helpers (C_CurrencyInfo etc.) are omitted. GetMoneyString
+-- uses text symbols, not coin texture markup (markup doesn't render in 1.12).
+--
+-- The FrameXML format-string globals these functions consume
+-- (LARGE_NUMBER_SEPERATOR, PERCENTAGE_STRING, GOLD_AMOUNT_SYMBOL, …) are
+-- defined in the locale layer (locales/enUS.lua), which loads first.
+
+COPPER_PER_SILVER = 100;
+SILVER_PER_GOLD = 100;
+COPPER_PER_GOLD = COPPER_PER_SILVER * SILVER_PER_GOLD;
+
+function FormatLargeNumber(amount)
+    amount = tostring(amount);
+    local newDisplay = "";
+    local strlen = string.len(amount);
+    -- Insert a separator before each group of three trailing digits.
+    for i = 4, strlen, 3 do
+        newDisplay = LARGE_NUMBER_SEPERATOR ..
+            string.sub(amount, -(i - 1), -(i - 3)) .. newDisplay;
+    end
+    -- Prepend everything before the first separator.
+    local lead = (math.mod(strlen, 3) == 0) and 3 or math.mod(strlen, 3);
+    newDisplay = string.sub(amount, 1, lead) .. newDisplay;
+    return newDisplay;
+end
+
+function FormatPercentage(percentage, roundToNearestInteger)
+    if roundToNearestInteger then
+        percentage = Round(percentage * 100);
+    else
+        percentage = percentage * 100;
+    end
+    return string.format(PERCENTAGE_STRING, percentage);
+end
+
+function FormatFraction(numerator, denominator)
+    return string.format(GENERIC_FRACTION_STRING, numerator, denominator);
+end
+
+function SplitTextIntoLines(text, delimiter)
+    local lines = {};
+    local startIndex = 1;
+    local foundIndex = string.find(text, delimiter);
+    while foundIndex do
+        table.insert(lines, string.sub(text, startIndex, foundIndex - 1));
+        startIndex = foundIndex + 2;
+        foundIndex = string.find(text, delimiter, startIndex);
+    end
+    if startIndex <= string.len(text) then
+        table.insert(lines, string.sub(text, startIndex));
+    end
+    return lines;
+end
+
+function SplitTextIntoHeaderAndNonHeader(text)
+    local foundIndex = string.find(text, "|n");
+    local len = string.len(text);
+    if not foundIndex then
+        return text; -- no newline: whole thing is a header
+    elseif len == 2 then
+        return nil; -- the string was just a newline
+    elseif foundIndex == 1 then
+        return string.sub(text, 3); -- leading newline: rest is a header
+    elseif foundIndex == len - 1 then
+        return string.sub(text, 1, foundIndex - 1); -- trailing newline
+    else
+        return string.sub(text, 1, foundIndex - 1), string.sub(text, foundIndex + 2);
+    end
+end
+
+-- (money, separateThousands [, checkGoldThreshold, showZeroAsGold])
+-- Text-symbol form ("12g 34s 56c"); the coin-texture form from the
+-- reference is dropped since texture markup doesn't render in 1.12. The
+-- checkGoldThreshold arg is accepted for signature compatibility but not
+-- applied (it relied on modern Constants tables).
+function GetMoneyString(money, separateThousands, checkGoldThreshold, showZeroAsGold)
+    local gold = math.floor(money / COPPER_PER_GOLD);
+    local silver = math.floor(math.mod(money, COPPER_PER_GOLD) / COPPER_PER_SILVER);
+    local copper = math.mod(money, COPPER_PER_SILVER);
+
+    local goldString = (separateThousands and FormatLargeNumber(gold) or tostring(gold)) ..
+        GOLD_AMOUNT_SYMBOL;
+    local silverString = silver .. SILVER_AMOUNT_SYMBOL;
+    local copperString = copper .. COPPER_AMOUNT_SYMBOL;
+
+    if showZeroAsGold and money == 0 then
+        return goldString;
+    end
+
+    local moneyString = "";
+    local separator = "";
+    if gold > 0 then
+        moneyString = goldString;
+        separator = " ";
+    end
+    if silver > 0 then
+        moneyString = moneyString .. separator .. silverString;
+        separator = " ";
+    end
+    if copper > 0 or moneyString == "" then
+        moneyString = moneyString .. separator .. copperString;
+    end
+    return moneyString;
+end

AddOns/!!!ClassicAPI/Util/FrameUtil.lua

@@ -0,0 +1,64 @@
+-- Backport of FrameXML/FrameUtil.lua (core subset) to vanilla 1.12.
+--
+-- Only the dependency-light, commonly-called helpers are ported. Omitted:
+--   - the fade/flash functions (UIFrameFade*/UIFrameFlash*) are already
+--     native in 1.12.
+--   - RegisterFrameForUnitEvents (no RegisterUnitEvent in 1.12), and the
+--     scale/layout/secure/EventRegistry helpers (rely on APIs absent here).
+
+FrameUtil = FrameUtil or {};
+
+function FrameUtil.RegisterFrameForEvents(frame, events)
+    for i, event in ipairs(events) do
+        frame:RegisterEvent(event);
+    end
+end
+
+function FrameUtil.UnregisterFrameForEvents(frame, events)
+    for i, event in ipairs(events) do
+        frame:UnregisterEvent(event);
+    end
+end
+
+function FrameUtil.GetRootParent(frame)
+    local parent = frame:GetParent();
+    while parent do
+        local nextParent = parent:GetParent();
+        if not nextParent then
+            break;
+        end
+        parent = nextParent;
+    end
+    return parent;
+end
+
+-- Reparents while preserving the frame's render layering.
+function FrameUtil.SetParentMaintainRenderLayering(frame, parent)
+    local origStrata = frame:GetFrameStrata();
+    local origFrameLevel = frame:GetFrameLevel();
+    frame:SetParent(parent);
+    frame:SetFrameStrata(origStrata);
+    frame:SetFrameLevel(origFrameLevel);
+end
+
+function DoesAncestryInclude(ancestry, frame)
+    if ancestry then
+        local currentFrame = frame;
+        while currentFrame do
+            if currentFrame == ancestry then
+                return true;
+            end
+            currentFrame = currentFrame:GetParent();
+        end
+    end
+    return false;
+end
+
+function DoesAncestryIncludeAny(ancestry, frames)
+    for _, frame in ipairs(frames) do
+        if DoesAncestryInclude(ancestry, frame) then
+            return true;
+        end
+    end
+    return false;
+end

AddOns/!!!ClassicAPI/Util/GameTooltip.lua

@@ -0,0 +1,92 @@
+function GameTooltip_Hide()
+	GameTooltip:Hide()
+end
+
+GameTooltip.shoppingTooltips = GameTooltip.shoppingTooltips or { ShoppingTooltip1, ShoppingTooltip2 }
+
+function GameTooltip_ShowCompareItem(self, shift)
+	if ( not self ) then
+		self = GameTooltip;
+	end
+	local item, link = self:GetItem();
+	link = link or self.compareLink
+	if ( not link ) then
+		return;
+	end
+
+	local shoppingTooltip1, shoppingTooltip2 = unpack(self.shoppingTooltips or { ShoppingTooltip1, ShoppingTooltip2 });
+
+	local SEPARATION = 6;
+	local backdrop = shoppingTooltip1.GetBackdrop and shoppingTooltip1:GetBackdrop();
+	local GAP = SEPARATION + ((type(backdrop) == "table" and backdrop.edgeSize) or 0);
+
+	local item1 = nil;
+	local item2 = nil;
+	local side = "left";
+	if ( shoppingTooltip1:SetHyperlinkCompareItem(link, 1, shift, self) ) then
+		item1 = true;
+	end
+	if ( shoppingTooltip2:SetHyperlinkCompareItem(link, 2, shift, self) ) then
+		item2 = true;
+	end
+
+	-- find correct side
+	local rightDist = 0;
+	local leftPos = self:GetLeft();
+	local rightPos = self:GetRight();
+	if ( not rightPos ) then
+		rightPos = 0;
+	end
+	if ( not leftPos ) then
+		leftPos = 0;
+	end
+
+	rightDist = GetScreenWidth() - rightPos;
+
+	if (leftPos and (rightDist < leftPos)) then
+		side = "left";
+	else
+		side = "right";
+	end
+
+	-- see if we should slide the tooltip
+	if ( self:GetAnchorType() and self:GetAnchorType() ~= "ANCHOR_PRESERVE" ) then
+		local totalWidth = 0;
+		if ( item1  ) then
+			totalWidth = totalWidth + shoppingTooltip1:GetWidth();
+		end
+		if ( item2  ) then
+			totalWidth = totalWidth + shoppingTooltip2:GetWidth();
+		end
+
+		if ( (side == "left") and (totalWidth > leftPos) ) then
+			self:SetAnchorType(self:GetAnchorType(), (totalWidth - leftPos), 0);
+		elseif ( (side == "right") and (rightPos + totalWidth) >  GetScreenWidth() ) then
+			self:SetAnchorType(self:GetAnchorType(), -((rightPos + totalWidth) - GetScreenWidth()), 0);
+		end
+	end
+
+	if ( item1 ) then
+		shoppingTooltip1:SetOwner(self, "ANCHOR_NONE");
+		shoppingTooltip1:ClearAllPoints();
+		if ( side and side == "left" ) then
+			shoppingTooltip1:SetPoint("TOPRIGHT", self, "TOPLEFT", -GAP, -10);
+		else
+			shoppingTooltip1:SetPoint("TOPLEFT", self, "TOPRIGHT", GAP, -10);
+		end
+		shoppingTooltip1:SetHyperlinkCompareItem(link, 1, shift, self);
+		shoppingTooltip1:Show();
+
+		if ( item2 ) then
+			shoppingTooltip2:SetOwner(shoppingTooltip1, "ANCHOR_NONE");
+			shoppingTooltip2:ClearAllPoints();
+			if ( side and side == "left" ) then
+				shoppingTooltip2:SetPoint("TOPRIGHT", shoppingTooltip1, "TOPLEFT", -GAP, 0);
+			else
+				shoppingTooltip2:SetPoint("TOPLEFT", shoppingTooltip1, "TOPRIGHT", GAP, 0);
+			end
+			shoppingTooltip2:SetHyperlinkCompareItem(link, 2, shift, self);
+			shoppingTooltip2:Show();
+		end
+	end
+end

AddOns/!!!ClassicAPI/Util/IconDataProvider.lua

@@ -0,0 +1,242 @@
+-- Backport of modern Classic Era's IconDataProvider.lua (lives in
+-- Blizzard_FrameXMLBase/Classic/) to vanilla 1.12 / Lua 5.0.
+--
+-- Wraps the four engine icon-enumeration mutators
+-- (`GetLooseMacroIcons` / `GetLooseMacroItemIcons` / `GetMacroIcons`
+-- / `GetMacroItemIcons` — all surfaced by ClassicAPI.dll) into a
+-- stateful `Spell`/`Item` bucket pair, with an optional
+-- "extras" array of icons prepended ahead of the base DB. The two
+-- "extra" types are:
+--
+--   * `Spellbook` — icons of every spell currently in the player's
+--     spellbook UI. Used by the modern Macro UI's icon picker so
+--     "icons relevant to my class" surface first. In vanilla this
+--     misses spells that aren't on the spellbook UI (racials kept
+--     off the bar, profession recipes the engine doesn't list as
+--     spells, etc.) but covers the common case.
+--   * `Equipment` — icons of currently-equipped items (slots 1..19
+--     via `GetInventoryItemTexture("player", i)`). Used by the
+--     modern Equipment-Manager popup so the picker leads with what
+--     the player is wearing.
+--
+-- Implementation differences from the modern source:
+--
+--   * `EnumUtil.MakeEnum` is inlined as a plain table.
+--   * Modern's `C_SpecializationInfo.GetTalentInfo(query)` (Cata+
+--     spec-aware talent API) and `GetPvpTalentInfoByID` (MoP+ PvP
+--     talents) are replaced with vanilla's `GetTalentInfo(tab, idx)`
+--     across the 3 talent trees. Vanilla has no specs, no dual-spec
+--     groups, and no PvP talent system, so those layers are dropped.
+--   * `GetSpellBookItemTexture(slot, "player")` is replaced with
+--     vanilla's `GetSpellTexture(slot, "spell")`. Flyouts don't
+--     exist in vanilla so that branch is dropped entirely.
+--   * `extraIconsMap` is a Lua-set keyed by texture path or
+--     fileID — `GetKeysArray` flattens it to a numbered array.
+--     Same dedup semantics as modern: each texture appears once
+--     within the extras section, but no cross-dedup with the
+--     base DB walk (the player's equipped weapon icon may still
+--     appear twice in the final picker, once in extras and once
+--     in `GetMacroItemIcons`).
+
+local QuestionMarkIconPath = "INTERFACE\\ICONS\\INV_MISC_QUESTIONMARK"
+
+local NumActiveIconDataProviders = 0
+local BaseIconFilenames = nil
+
+-- Builds the table BaseIconFilenames with engine icon DB.
+-- Lazy: shared across all active IconDataProvider instances, so
+-- the four engine calls (each of which scans thousands of files)
+-- only happens once per picker session.
+local function IconDataProvider_RefreshIconTextures()
+    if BaseIconFilenames ~= nil then
+        return
+    end
+
+    BaseIconFilenames = {}
+    BaseIconFilenames[IconDataProviderIconType.Spell] = {}
+    BaseIconFilenames[IconDataProviderIconType.Item] = {}
+    GetLooseMacroIcons(BaseIconFilenames[IconDataProviderIconType.Spell])
+    GetLooseMacroItemIcons(BaseIconFilenames[IconDataProviderIconType.Item])
+    GetMacroIcons(BaseIconFilenames[IconDataProviderIconType.Spell])
+    GetMacroItemIcons(BaseIconFilenames[IconDataProviderIconType.Item])
+end
+
+local function IconDataProvider_ClearIconTextures()
+    BaseIconFilenames = nil
+    collectgarbage()
+end
+
+local function IconDataProvider_GetBaseIconTexture(iconType, index)
+    local texture = BaseIconFilenames[iconType][index]
+    local fileDataID = tonumber(texture)
+    if fileDataID ~= nil then
+        return fileDataID
+    else
+        return "INTERFACE\\ICONS\\" .. texture
+    end
+end
+
+function IconDataProvider_GetAllIconTypes()
+    local iconTypeValues = GetValuesArray(IconDataProviderIconType)
+    table.sort(iconTypeValues)
+    return iconTypeValues
+end
+
+IconDataProviderMixin = {}
+
+-- `EnumUtil.MakeEnum("Spell", "Item")` produces `{ Spell = 1, Item = 2 }`.
+IconDataProviderIconType = { Spell = 1, Item = 2 }
+
+IconDataProviderExtraType = {
+    Spellbook = 1,
+    Equipment = 2,
+    None = 3,
+}
+
+local function FillOutExtraIconsMapWithSpells(extraIconsMap)
+    for tab = 1, GetNumSpellTabs() do
+        local _, _, offset, numSpells = GetSpellTabInfo(tab)
+        offset = offset + 1
+        local tabEnd = offset + numSpells
+        for slot = offset, tabEnd - 1 do
+            local tex = GetSpellTexture(slot, "spell")
+            if tex ~= nil and tex ~= "" then
+                extraIconsMap[tex] = true
+            end
+        end
+    end
+end
+
+-- Walks all three vanilla talent trees, gathering every talent's
+-- icon — including talents the player hasn't put points into. The
+-- whole tree is "relevant to my class" for picker purposes, not
+-- just maxed talents. `GetTalentInfo(tab, idx)` returns
+-- `(name, icon, tier, column, rank, maxRank, ...)` — we read the
+-- icon (second return) directly.
+local function FillOutExtraIconsMapWithTalents(extraIconsMap)
+    for tab = 1, GetNumTalentTabs() do
+        local numTalents = GetNumTalents(tab)
+        for talent = 1, numTalents do
+            local _, icon = GetTalentInfo(tab, talent)
+            if icon ~= nil and icon ~= "" then
+                extraIconsMap[icon] = true
+            end
+        end
+    end
+end
+
+local function FillOutExtraIconsMapWithEquipment(extraIconsMap)
+    for slot = INVSLOT_FIRST_EQUIPPED, INVSLOT_LAST_EQUIPPED do
+        for _, itemLink in pairs(GetInventoryItemsForSlot(slot, {})) do
+            local _, _, _, _, itemTexture = C_Item.GetItemInfoInstant(itemLink)
+            if itemTexture then
+                extraIconsMap[itemTexture] = true
+            end
+        end
+    end
+end
+
+function IconDataProviderMixin:Init(extraType, extraIconsOnly, requestedIconTypes)
+    self.extraIcons = {}
+    self.extraIconType = extraType
+    self.requestedIconTypes = requestedIconTypes or IconDataProvider_GetAllIconTypes()
+
+    if extraType == IconDataProviderExtraType.Spellbook then
+        local extraIconsMap = {}
+        FillOutExtraIconsMapWithSpells(extraIconsMap)
+        FillOutExtraIconsMapWithTalents(extraIconsMap)
+        self.extraIcons = GetKeysArray(extraIconsMap)
+    elseif extraType == IconDataProviderExtraType.Equipment then
+        local extraIconsMap = {}
+        FillOutExtraIconsMapWithEquipment(extraIconsMap)
+        self.extraIcons = GetKeysArray(extraIconsMap)
+    end
+
+    if not extraIconsOnly then
+        NumActiveIconDataProviders = NumActiveIconDataProviders + 1
+        IconDataProvider_RefreshIconTextures()
+    end
+end
+
+function IconDataProviderMixin:SetIconTypes(iconTypes)
+    self.requestedIconTypes = iconTypes or IconDataProvider_GetAllIconTypes()
+end
+
+function IconDataProviderMixin:GetNumIcons()
+    -- 1 to account for the leading `?` icon.
+    local numIcons = 1
+    if self:ShouldShowExtraIcons() then
+        numIcons = numIcons + table.getn(self.extraIcons)
+    end
+    if BaseIconFilenames then
+        for _, v in pairs(self.requestedIconTypes) do
+            numIcons = numIcons + table.getn(BaseIconFilenames[v])
+        end
+    end
+    return numIcons
+end
+
+function IconDataProviderMixin:GetIconByIndex(index)
+    if index == 1 then
+        return QuestionMarkIconPath
+    end
+
+    index = index - 1
+
+    local numExtraIcons = (self:ShouldShowExtraIcons() and
+                           table.getn(self.extraIcons)) or 0
+    if index <= numExtraIcons then
+        return self.extraIcons[index]
+    end
+
+    local baseIndex = index - numExtraIcons
+    local lookupIconType = nil
+    -- Each icon type's table is indexed from 1, so loop through the
+    -- tables to find which icon type we index to.
+    for _, v in pairs(self.requestedIconTypes) do
+        local numIconsForType = table.getn(BaseIconFilenames[v])
+        if baseIndex <= numIconsForType then
+            lookupIconType = v
+            break
+        end
+        baseIndex = baseIndex - numIconsForType
+    end
+
+    if lookupIconType then
+        return IconDataProvider_GetBaseIconTexture(lookupIconType, baseIndex)
+    else
+        return nil
+    end
+end
+
+function IconDataProviderMixin:GetIconForSaving(index)
+    local icon = self:GetIconByIndex(index)
+    if type(icon) == "string" then
+        icon = string.gsub(icon, "INTERFACE\\ICONS\\", "")
+    end
+    return icon
+end
+
+function IconDataProviderMixin:GetIndexOfIcon(icon)
+    local numIcons = self:GetNumIcons()
+    for i = 1, numIcons do
+        if self:GetIconByIndex(i) == icon then
+            return i
+        end
+    end
+    return nil
+end
+
+function IconDataProviderMixin:ShouldShowExtraIcons()
+    return (self.extraIconType == IconDataProviderExtraType.Spellbook and
+            tContains(self.requestedIconTypes, IconDataProviderIconType.Spell))
+        or (self.extraIconType == IconDataProviderExtraType.Equipment and
+            tContains(self.requestedIconTypes, IconDataProviderIconType.Item))
+end
+
+function IconDataProviderMixin:Release()
+    NumActiveIconDataProviders = NumActiveIconDataProviders - 1
+    if NumActiveIconDataProviders <= 0 then
+        IconDataProvider_ClearIconTextures()
+    end
+end

AddOns/!!!ClassicAPI/Util/ItemUtil.lua

@@ -15,8 +15,6 @@
 --   - 1.12 has no concept of an item GUID and no public item-lock API,
 --     so those return nil / no-op.
 
-C_Item.GetItemInfo = GetItemInfo
-
 ----------------------------------------------------------------------
 
 Item = {}

AddOns/!!!ClassicAPI/Util/LinkUtil.lua

@@ -62,7 +62,10 @@ LinkTypes = {
 LinkUtil = {};
 
 function LinkUtil.FormatLink(linkType, linkDisplayText, ...)
-	local linkFormatTable = { string.format("|H%s", linkType), ... };
+	local linkFormatTable = { string.format("|H%s", linkType) };
+	for i = 1, arg.n do
+		linkFormatTable[i + 1] = arg[i];
+	end
 	local returnLink = table.concat(linkFormatTable, ":");
 	if linkDisplayText then
 		return returnLink .. string.format("|h%s|h", linkDisplayText);

AddOns/!!!ClassicAPI/Util/PixelUtil.lua

@@ -0,0 +1,86 @@
+-- Backport of FrameXML/PixelUtil.lua to vanilla 1.12 / Lua 5.0.
+--
+-- PixelUtil snaps frame sizes/points to whole physical pixels so
+-- borders and textures stay crisp at fractional UI scales. The table
+-- ports verbatim — its only math deps (Round, Lerp,
+-- ClampedPercentageBetween) all live in MathUtil, which loads first.
+--
+-- The one piece vanilla lacks is the native `GetPhysicalScreenSize()`
+-- (added in 7.0). The ClassicAPI DLL provides it (see
+-- src/screen/Info.cpp) by reading the engine's `gxResolution` CVar, so
+-- it's a real global registered at engine boot — no Lua polyfill
+-- needed here.
+
+PixelUtil = {};
+
+function PixelUtil.GetPixelToUIUnitFactor()
+    local physicalWidth, physicalHeight = GetPhysicalScreenSize();
+    return 768.0 / physicalHeight;
+end
+
+function PixelUtil.GetNearestPixelSize(uiUnitSize, layoutScale, minPixels)
+    if uiUnitSize == 0 and (not minPixels or minPixels == 0) then
+        return 0;
+    end
+
+    local uiUnitFactor = PixelUtil.GetPixelToUIUnitFactor();
+    local numPixels = Round((uiUnitSize * layoutScale) / uiUnitFactor);
+    if minPixels then
+        if uiUnitSize < 0.0 then
+            if numPixels > -minPixels then
+                numPixels = -minPixels;
+            end
+        else
+            if numPixels < minPixels then
+                numPixels = minPixels;
+            end
+        end
+    end
+
+    return numPixels * uiUnitFactor / layoutScale;
+end
+
+function PixelUtil.ConvertPixelsToUI(desiredPixels, layoutScale)
+    return PixelUtil.GetNearestPixelSize(desiredPixels, layoutScale);
+end
+
+function PixelUtil.ConvertPixelsToUIForRegion(desiredPixels, region)
+    return PixelUtil.GetNearestPixelSize(desiredPixels, region:GetEffectiveScale());
+end
+
+function PixelUtil.SetWidth(region, width, minPixels)
+    region:SetWidth(PixelUtil.GetNearestPixelSize(width, region:GetEffectiveScale(), minPixels));
+end
+
+function PixelUtil.SetHeight(region, height, minPixels)
+    region:SetHeight(PixelUtil.GetNearestPixelSize(height, region:GetEffectiveScale(), minPixels));
+end
+
+function PixelUtil.SetSize(region, width, height, minWidthPixels, minHeightPixels)
+    PixelUtil.SetWidth(region, width, minWidthPixels);
+    PixelUtil.SetHeight(region, height, minHeightPixels);
+end
+
+function PixelUtil.SetPoint(region, point, relativeTo, relativePoint, offsetX, offsetY, minOffsetXPixels, minOffsetYPixels)
+    region:SetPoint(point, relativeTo, relativePoint,
+        PixelUtil.GetNearestPixelSize(offsetX, region:GetEffectiveScale(), minOffsetXPixels),
+        PixelUtil.GetNearestPixelSize(offsetY, region:GetEffectiveScale(), minOffsetYPixels)
+    );
+end
+
+function PixelUtil.SetStatusBarValue(statusBar, value)
+    local width = statusBar:GetWidth();
+    if width and width > 0.0 then
+        local min, max = statusBar:GetMinMaxValues();
+        local percent = ClampedPercentageBetween(value, min, max);
+        if percent == 0.0 or percent == 1.0 then
+            statusBar:SetValue(value);
+        else
+            local numPixels = PixelUtil.GetNearestPixelSize(statusBar:GetWidth() * percent, statusBar:GetEffectiveScale());
+            local roundedValue = Lerp(min, max, numPixels / width);
+            statusBar:SetValue(roundedValue);
+        end
+    else
+        statusBar:SetValue(value);
+    end
+end

AddOns/!!!ClassicAPI/Util/PlayerLocation.lua

@@ -0,0 +1,228 @@
+-- Backport of the modern `PlayerLocation` / `PlayerLocationMixin` parameter
+-- object (Blizzard_ObjectAPI). Like `ItemLocation`, it's a lightweight
+-- descriptor that wraps one of several ways to identify a player — a GUID, a
+-- unit token, a chat line, a /who index, a battlefield-scoreboard index, etc.
+-- — so retail/Classic addon code can construct and inspect it unchanged.
+--
+-- It's pure table bookkeeping: every Create/Set/Get/Is is just fields, no
+-- engine access. The GUID / unit / chatLine / whoIndex / battlefieldScore
+-- kinds all map to things vanilla 1.12 genuinely has. The community, voice,
+-- and Battle.net kinds have no vanilla producer, but they're kept as harmless
+-- data holders so the mixin matches retail exactly for any code that builds
+-- or reads them. Only the two methods that reach into systems 1.12 lacks —
+-- `IsValid` (Club) and `IsBattleNetGUID` (account info) — are guarded so they
+-- degrade gracefully instead of erroring on the missing `C_Club` /
+-- `C_AccountInfo` namespaces.
+
+local CreateFromMixins = CreateFromMixins
+
+PlayerLocation = PlayerLocation or {}
+PlayerLocationMixin = PlayerLocationMixin or {}
+
+--[[static]] function PlayerLocation:CreateFromGUID(guid)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetGUID(guid)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromUnit(unit)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetUnit(unit)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromChatLineID(lineID)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetChatLineID(lineID)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromBattlefieldScoreIndex(battlefieldScoreIndex)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetBattlefieldScoreIndex(battlefieldScoreIndex)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromWhoIndex(whoIndex)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetWhoIndex(whoIndex)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromVoiceID(memberID, channelID)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetVoiceID(memberID, channelID)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromBattleNetID(battleNetID)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetBattleNetID(battleNetID)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromCommunityChatData(clubID, streamID, epoch, position)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetCommunityData(clubID, streamID, epoch, position)
+	return playerLocation
+end
+
+--[[static]] function PlayerLocation:CreateFromCommunityInvitation(clubID, guid)
+	local playerLocation = CreateFromMixins(PlayerLocationMixin)
+	playerLocation:SetCommunityInvitation(clubID, guid)
+	return playerLocation
+end
+
+--[[public api]]
+function PlayerLocationMixin:SetGUID(guid)
+	self:ClearAndSetField("guid", guid)
+end
+
+function PlayerLocationMixin:IsValid()
+	if self:IsCommunityData() then
+		-- Vanilla has no Community/Club system; if the namespace is
+		-- absent a community location can never be resolved.
+		if C_Club and C_Club.CanResolvePlayerLocationFromClubMessageData then
+			return C_Club.CanResolvePlayerLocationFromClubMessageData(self.communityClubID, self.communityStreamID, self.communityEpoch, self.communityPosition)
+		end
+		return false
+	end
+
+	return true
+end
+
+function PlayerLocationMixin:IsGUID()
+	return self.guid ~= nil
+end
+
+function PlayerLocationMixin:IsBattleNetGUID()
+	-- No Battle.net accounts on 1.12; guarded so it returns false instead
+	-- of erroring on a missing C_AccountInfo.
+	if self.guid and C_AccountInfo and C_AccountInfo.IsGUIDBattleNetAccountType then
+		return C_AccountInfo.IsGUIDBattleNetAccountType(self.guid)
+	end
+	return false
+end
+
+function PlayerLocationMixin:GetGUID()
+	return self.guid or self.communityClubInviterGUID
+end
+
+function PlayerLocationMixin:SetUnit(unit)
+	self:ClearAndSetField("unit", unit)
+end
+
+function PlayerLocationMixin:IsUnit()
+	return self.unit ~= nil
+end
+
+function PlayerLocationMixin:GetUnit()
+	return self.unit
+end
+
+function PlayerLocationMixin:SetChatLineID(lineID)
+	self:ClearAndSetField("chatLineID", lineID)
+end
+
+function PlayerLocationMixin:IsChatLineID()
+	return self.chatLineID ~= nil
+end
+
+function PlayerLocationMixin:GetChatLineID()
+	return self.chatLineID
+end
+
+function PlayerLocationMixin:SetBattlefieldScoreIndex(index)
+	self:ClearAndSetField("battlefieldScoreIndex", index)
+end
+
+function PlayerLocationMixin:IsBattlefieldScoreIndex()
+	return self.battlefieldScoreIndex ~= nil
+end
+
+function PlayerLocationMixin:GetBattlefieldScoreIndex()
+	return self.battlefieldScoreIndex
+end
+
+function PlayerLocationMixin:SetWhoIndex(whoIndex)
+	self:ClearAndSetField("whoIndex", whoIndex)
+end
+
+function PlayerLocationMixin:IsWhoIndex()
+	return self.whoIndex ~= nil
+end
+
+function PlayerLocationMixin:GetWhoIndex()
+	return self.whoIndex
+end
+
+function PlayerLocationMixin:SetVoiceID(memberID, channelID)
+	self:Clear()
+	self.voiceMemberID = memberID
+	self.voiceChannelID = channelID
+end
+
+function PlayerLocationMixin:IsVoiceID()
+	return self.voiceMemberID ~= nil and self.voiceChannelID ~= nil
+end
+
+function PlayerLocationMixin:GetVoiceID()
+	return self.voiceMemberID, self.voiceChannelID
+end
+
+function PlayerLocationMixin:SetBattleNetID(battleNetID)
+	self:Clear()
+	self.battleNetID = battleNetID
+end
+
+function PlayerLocationMixin:IsBattleNetID()
+	return self.battleNetID ~= nil
+end
+
+function PlayerLocationMixin:GetBattleNetID()
+	return self.battleNetID
+end
+
+function PlayerLocationMixin:SetCommunityData(clubID, streamID, epoch, position)
+	self:Clear()
+	self.communityClubID = clubID
+	self.communityStreamID = streamID
+	self.communityEpoch = epoch
+	self.communityPosition = position
+end
+
+function PlayerLocationMixin:IsCommunityData()
+	return self.communityClubID ~= nil and self.communityStreamID ~= nil and self.communityEpoch ~= nil and self.communityPosition ~= nil
+end
+
+function PlayerLocationMixin:SetCommunityInvitation(clubID, guid)
+	self:Clear()
+	self.communityClubID = clubID
+	self.communityClubInviterGUID = guid
+end
+
+function PlayerLocationMixin:IsCommunityInvitation()
+	return self.communityClubID ~= nil and self.communityClubInviterGUID ~= nil
+end
+
+--[[private api]]
+function PlayerLocationMixin:Clear()
+	self.guid = nil
+	self.unit = nil
+	self.chatLineID = nil
+	self.battlefieldScoreIndex = nil
+	self.whoIndex = nil
+	self.voiceMemberID = nil
+	self.voiceChannelID = nil
+	self.communityClubID = nil
+	self.communityStreamID = nil
+	self.communityEpoch = nil
+	self.communityPosition = nil
+	self.communityClubInviterGUID = nil
+	self.battleNetID = nil
+end
+
+function PlayerLocationMixin:ClearAndSetField(fieldName, field)
+	self:Clear()
+	self[fieldName] = field
+end

AddOns/!!!ClassicAPI/Util/PlayerUtil.lua

@@ -1,5 +1,4 @@
-local className = UnitClass('player')
-local classFile, classID = UnitClassBase('player')
+local className, classFile, classID = UnitClass('player'), UnitClassBase('player')
 
 PlayerUtil = PlayerUtil or {}
 
@@ -33,7 +32,7 @@ function PlayerUtil.GetCurrentSpeed()
 end
 
 function GetPlayerGuid()
-	return UnitGUID("player");
+	return UnitGUID("player")
 end
 
 function IsPlayerGuid(guid)
@@ -43,4 +42,4 @@ end
 function GetNameAndServerNameFromGUID(unitGUID)
 	local _, _, _, _, _, name = GetPlayerInfoByGUID(unitGUID);
 	return name, GetRealmName()
-end
+end

AddOns/!!!ClassicAPI/Util/Print.lua

@@ -17,12 +17,6 @@
 --     Secure-Templates system, so the protective wrappers in 3.3.5
 --     reduce to a plain pcall.
 --
--- Skipping if print is already defined keeps this file safe to load
--- alongside any other DLL or addon that might inject its own print.
-
-if type(print) == "function" then
-    return
-end
 
 ----------------------------------------------------------------------------
 -- tostringall: convert every vararg to a string, preserving count.

AddOns/!!!ClassicAPI/Util/SlashCommandsRegistry.lua

@@ -4,4 +4,22 @@ function RegisterNewSlashCommand(callback, command, commandAlias)
     _G["SLASH_"..name.."1"] = "/"..command;
     _G["SLASH_"..name.."2"] = "/"..commandAlias;
     SlashCmdList[name] = callback;
-end
+end
+
+SlashCmdList["FOCUS"] = function(msg)
+    if msg == "" then
+        FocusUnit();
+    else
+        FocusUnit(msg);
+    end
+end
+
+SlashCmdList["CLEARFOCUS"] = function(msg)
+    ClearFocus()
+end
+
+SlashCmdList["EQUIP_SET"] = function(msg)
+    if msg ~= "" then
+        C_EquipmentSet.UseEquipmentSet(C_EquipmentSet.GetEquipmentSetID(msg))
+    end
+end

AddOns/!!!ClassicAPI/Util/String.lua

@@ -1,13 +0,0 @@
-
-function string.match(s, pattern, init)
-    if s == nil then return nil end
-    local r1, r2, c1, c2, c3, c4, c5, c6, c7, c8, c9 =
-        string.find(s, pattern, init)
-    if r1 == nil then return nil end
-    if c1 ~= nil then
-        return c1, c2, c3, c4, c5, c6, c7, c8, c9
-    end
-    return string.sub(s, r1, r2)
-end
-
-string.gmatch = string.gfind

AddOns/!!!ClassicAPI/Util/TableUtil.lua

@@ -65,6 +65,18 @@ function CreateTableReverseEnumerator(tbl, minIndex, maxIndex)
     return Enumerator, tbl, maxIndex
 end
 
+function tDeleteItem(tbl, item)
+	local size = tGetN(tbl);
+	local index = size;
+	while index > 0 do
+		if item == tbl[index] then
+			tRemove(tbl, index);
+		end
+		index = index - 1;
+	end
+	return size - tGetN(tbl);
+end
+
 function tIndexOf(tbl, item)
     for i, v in ipairs(tbl) do
         if item == v then
@@ -73,6 +85,15 @@ function tIndexOf(tbl, item)
     end
 end
 
+function tContains(tbl, item)
+	for k, v in pairs(tbl) do
+		if item == v then
+			return true;
+		end
+	end
+	return false;
+end
+
 function TableUtil.ContainsAllKeys(lhsTable, rhsTable)
     for key, _ in pairs(lhsTable) do
         if rhsTable[key] == nil then

AddOns/!!!ClassicAPI/Util/TimeUtil.lua

@@ -0,0 +1,41 @@
+SECONDS_PER_MIN = 60;
+SECONDS_PER_HOUR = 60 * SECONDS_PER_MIN;
+SECONDS_PER_DAY = 24 * SECONDS_PER_HOUR;
+SECONDS_PER_MONTH = 30 * SECONDS_PER_DAY;
+SECONDS_PER_YEAR = 12 * SECONDS_PER_MONTH;
+
+function SecondsToMinutes(seconds)
+    return seconds / SECONDS_PER_MIN;
+end
+
+function MinutesToSeconds(minutes)
+    return minutes * SECONDS_PER_MIN;
+end
+
+function ConvertSecondsToUnits(timestamp)
+    timestamp = math.max(timestamp, 0);
+    local days = math.floor(timestamp / SECONDS_PER_DAY);
+    timestamp = timestamp - (days * SECONDS_PER_DAY);
+    local hours = math.floor(timestamp / SECONDS_PER_HOUR);
+    timestamp = timestamp - (hours * SECONDS_PER_HOUR);
+    local minutes = math.floor(timestamp / SECONDS_PER_MIN);
+    timestamp = timestamp - (minutes * SECONDS_PER_MIN);
+    local seconds = math.floor(timestamp);
+    local milliseconds = timestamp - seconds;
+    return {
+        days = days,
+        hours = hours,
+        minutes = minutes,
+        seconds = seconds,
+        milliseconds = milliseconds,
+    };
+end
+
+function SecondsToClock(seconds, displayZeroHours)
+    local units = ConvertSecondsToUnits(seconds);
+    if units.hours > 0 or displayZeroHours then
+        return string.format(HOURS_MINUTES_SECONDS, units.hours, units.minutes, units.seconds);
+    else
+        return string.format(MINUTES_SECONDS, units.minutes, units.seconds);
+    end
+end

AddOns/!!!ClassicAPI/Util/TradeSkillLink.lua

@@ -0,0 +1,849 @@
+-- Trade-skill *list* links (`|Htrade:...|h`) — backport of the 2.x+ shareable
+-- profession link. The link is built entirely in the DLL
+-- (`GetTradeSkillListLink` / `GetCraftListLink`, see src/tradeskill/Link.cpp);
+-- this file only intercepts clicks on received links and renders the linker's
+-- recipe list in a scroll frame (the UI half).
+--
+--   link:  |cffffd000|Htrade:<skillLineID>:<curRank>:<maxRank>:<linkerName>:<base64 bits>|h[Name]|h|r
+--
+-- "Which recipes are known" is a bitfield over the skill line's canonical
+-- recipe list (deterministic per DBC). The viewer lists the recipes the linker
+-- knows (with an "X of Y" summary of the whole skill line), regardless of what
+-- the reader can craft themselves.
+
+-- Frame geometry mirrors the real TradeSkillFrame. Turtle ships an HD
+-- 768x512 two-column frame (TW-TradeSkill art); stock 1.12.1 only has the
+-- vanilla 384x512 single-column art, so on that client we fall back to the
+-- native Blizzard_TradeSkillUI geometry (list on top, detail below) rather
+-- than stretch the wide art. LO holds every layout value that differs.
+local TURTLE     = (TURTLE_WOW_VERSION ~= nil);
+local FRAME_W    = TURTLE and 768 or 384;
+local FRAME_H    = 512;
+local NUM_ROWS   = TURTLE and 19 or 8;
+local ROW_HEIGHT = 16;
+
+local LO = TURTLE and {
+	hit     = { 2, 82, 2, 73 },
+	quads   = {
+		{ "Interface\\TradeSkillFrame\\TW-TradeSkill-TopLeft",   512, 256, "TOPLEFT" },
+		{ "Interface\\TradeSkillFrame\\TW-TradeSkill-TopRight",  256, 256, "TOPRIGHT" },
+		{ "Interface\\TradeSkillFrame\\TW-TradeSkill-BotLeft2",  512, 256, "BOTTOMLEFT" },
+		{ "Interface\\TradeSkillFrame\\TW-TradeSkill-BotRight2", 256, 256, "BOTTOMRIGHT" },
+	},
+	close   = { -77, -8 },
+	bar     = { 596, 15, 76, -44 },
+	barBdr  = { 604, 22 },
+	summary = { "TOPRIGHT", -110, -70 },
+	drop    = { 40, -60 },
+	scroll  = { 296, 330, 37, -98 },
+	-- detail scroll frame: { x, y, width, height }. Tall enough that the
+	-- content fits (scrollbar auto-hides) — Turtle's right column is roomy.
+	detail  = { 371, -110, 340, 290 },
+	exit    = { "CENTER", "BOTTOMRIGHT", -128, 92 },
+} or {
+	hit     = { 0, 34, 0, 75 },
+	quads   = {
+		{ "Interface\\ClassTrainerFrame\\UI-ClassTrainer-TopLeft",  256, 256, "TOPLEFT" },
+		{ "Interface\\ClassTrainerFrame\\UI-ClassTrainer-TopRight", 128, 256, "TOPRIGHT" },
+		{ "Interface\\TradeSkillFrame\\UI-TradeSkill-BotLeft",      256, 256, "BOTTOMLEFT" },
+		{ "Interface\\ClassTrainerFrame\\UI-ClassTrainer-BotRight", 128, 256, "BOTTOMRIGHT" },
+	},
+	close   = { -29, -8 },
+	bar     = { 268, 15, 73, -37 },
+	barBdr  = { 278, 22 },
+	summary = { "TOPRIGHT", -40, -58 },
+	drop    = { 12, -62 },
+	scroll  = { 296, 130, 21, -96 },
+	-- detail scroll frame { x, y, width, height } — native TradeSkillFrame's
+	-- TradeSkillDetailScrollFrame values. Small enough that many-reagent
+	-- recipes scroll (clipping partial rows), like native.
+	detail  = { 20, -234, 297, 176 },
+	exit    = { "CENTER", "TOPLEFT", 305, -422 },
+	sep     = { 15, -221, 331 },
+};
+
+-- Reagents render in a 2-column grid inside the detail scroll child (see
+-- the detail pane below). The detail is a real ScrollFrame like the
+-- native TradeSkillFrame, so the whole pane pixel-scrolls and clips
+-- partial reagent rows — `REAGENT_ROW_HEIGHT` is just the vertical stride
+-- of one reagent row.
+local REAGENT_ROW_HEIGHT = 43;
+
+-- Scroll-frame templates. Stock mimics the native TradeSkillFrame, whose
+-- list/detail scrolls use the ClassTrainer templates (they add the
+-- decorative UI-ClassTrainer-ScrollBar track). Turtle's HD frame art
+-- doesn't want that groove, so it keeps the plain templates. Both detail
+-- templates are real ScrollFrames (ClassTrainerDetail... inherits
+-- UIPanelScrollFrameTemplate), so the pixel-scroll logic is identical.
+local LIST_SCROLL_TEMPLATE   = TURTLE and "FauxScrollFrameTemplate"
+	or "ClassTrainerListScrollFrameTemplate";
+local DETAIL_SCROLL_TEMPLATE = TURTLE and "UIPanelScrollFrameTemplate"
+	or "ClassTrainerDetailScrollFrameTemplate";
+
+local PROFESSION_ICONS = {
+	[171] = "Trade_Alchemy",
+	[164] = "Trade_BlackSmithing",
+	[185] = "INV_Misc_Food_15",         -- Cooking
+	[333] = "Trade_Engraving",          -- Enchanting
+	[202] = "Trade_Engineering",
+	[129] = "Spell_Holy_SealOfSacrifice", -- First Aid
+	[165] = "INV_Misc_ArmorKit_17",     -- Leatherworking
+	[197] = "Trade_Tailoring",
+	[186] = "Trade_Mining",
+	[182] = "Trade_Herbalism",
+	[393] = "INV_Misc_Pelt_Wolf_01",    -- Skinning
+	[356] = "Trade_Fishing",
+};
+
+if TURTLE then
+	PROFESSION_ICONS[142] = "Trade_Survival"
+	PROFESSION_ICONS[755] = "INV_Misc_Gem_01" -- Jewelcrafting
+end
+
+local function ProfessionIcon(skillLineID)
+	local icon = PROFESSION_ICONS[skillLineID];
+	return icon and ("Interface\\Icons\\" .. icon)
+		or "Interface\\Icons\\INV_Misc_QuestionMark";
+end
+
+local function DifficultyBand(skill, hi, lo)
+	if not hi or hi <= 0 then
+		return 3;
+	end
+	if not lo or lo == 0 then
+		lo = (hi ~= 25) and (hi - 25) or 0;
+	end
+	local yellow = (hi + lo) / 2;
+	if skill < lo then
+		return 0;   -- orange (optimal)
+	elseif skill < yellow then
+		return 1;   -- yellow (medium)
+	elseif skill < hi then
+		return 2;   -- green (easy)
+	end
+	return 3;       -- grey (trivial)
+end
+
+local BAND_COLOR = {
+	[0] = DIFFICULT_DIFFICULTY_COLOR,  -- orange
+	[1] = FAIR_DIFFICULTY_COLOR,       -- yellow
+	[2] = EASY_DIFFICULTY_COLOR,       -- green
+	[3] = TRIVIAL_DIFFICULTY_COLOR,    -- grey
+};
+
+local function CraftableCount(entry)
+	local reagents = entry.reagents;
+	if not reagents or table.getn(reagents) == 0 then
+		return nil;
+	end
+	local best;
+	for i = 1, table.getn(reagents) do
+		local r = reagents[i];
+		local need = r.count or 1;
+		local n = math.floor((C_Item.GetItemCount(r.itemID) or 0) / need);
+		if not best or n < best then
+			best = n;
+		end
+	end
+	return best;
+end
+
+local function ParseTradeLink(link)
+	-- Current format, with the linker's name: trade:id:cur:max:Name:bits
+	local _, _, id, cur, max, who, bits =
+		string.find(link, "^trade:(%d+):(%d+):(%d+):([^:]+):([%w%+/]*)$");
+	if not id then
+		-- Legacy format (no name): trade:id:cur:max:bits
+		who = nil;
+		_, _, id, cur, max, bits =
+			string.find(link, "^trade:(%d+):(%d+):(%d+):([%w%+/]*)$");
+	end
+	if not id then
+		return nil;
+	end
+	return tonumber(id), tonumber(cur), tonumber(max), who, bits or "";
+end
+
+------------------------------------------------------------------------------
+-- Display frame (built lazily on first use)
+------------------------------------------------------------------------------
+
+local frame;
+local function ResolveSubclasses(list, onLoaded)
+	local present, subs, anyItem = {}, {}, false;
+	for i = 1, table.getn(list) do
+		local r = list[i];
+		if r.createdItem and r.createdItem > 0 then
+			anyItem = true;
+			if not r.subclass then
+				-- GetItemInfoInstant's 3rd return is the localized subclass
+				-- name (or nil when uncached).
+				local _, _, subType = C_Item.GetItemInfoInstant(r.createdItem);
+				if subType and subType ~= "" then
+					r.subclass = subType;
+				elseif onLoaded then
+					-- Not cached — re-derive when the item loads.
+					Item:CreateFromItemID(r.createdItem):ContinueOnItemLoad(onLoaded);
+				end
+			end
+			if r.subclass and not present[r.subclass] then
+				present[r.subclass] = true;
+				table.insert(subs, r.subclass);
+			end
+		end
+	end
+	table.sort(subs);
+	return subs, anyItem;
+end
+
+local SUBCLASS_ALL = {};
+
+local function SubClassButton_OnClick()
+	local v = this.value;
+	if v == SUBCLASS_ALL then
+		v = nil;
+	end
+	frame.subclassFilter = v;
+	UIDropDownMenu_SetText(v or ALL_SUBCLASSES, frame.dropdown);
+	frame:ApplyFilter();
+end
+
+local function SubClassDropDown_Initialize()
+	local info = {};
+	info.text = ALL_SUBCLASSES;
+	info.value = SUBCLASS_ALL;
+	info.checked = (frame.subclassFilter == nil);
+	info.func = SubClassButton_OnClick;
+	UIDropDownMenu_AddButton(info);
+	local subs = frame.subclasses or {};
+	for i = 1, table.getn(subs) do
+		local b = {};
+		b.text = subs[i];
+		b.value = subs[i];
+		b.checked = (frame.subclassFilter == subs[i]);
+		b.func = SubClassButton_OnClick;
+		UIDropDownMenu_AddButton(b);
+	end
+end
+
+local function RefreshSubclasses()
+	if not (frame and frame:IsShown() and frame.recipes) then
+		return;
+	end
+	local subs, anyItem = ResolveSubclasses(frame.recipes, RefreshSubclasses);
+	frame.subclasses = subs;
+	if anyItem then
+		UIDropDownMenu_Initialize(frame.dropdown, SubClassDropDown_Initialize);
+		UIDropDownMenu_SetWidth(120, frame.dropdown);
+		UIDropDownMenu_SetText(frame.subclassFilter or ALL_SUBCLASSES, frame.dropdown);
+		frame.dropdown:Show();
+	else
+		frame.dropdown:Hide();
+	end
+	if frame.subclassFilter then
+		frame:ApplyFilter();
+	end
+end
+
+local function CreateFrame_TradeSkillLink()
+	local f = CreateFrame("Frame", "ClassicAPITradeSkillLinkFrame", UIParent);
+	f:SetSize(FRAME_W, FRAME_H);
+	f:SetPoint("CENTER");
+	f:SetMovable(true);
+	f:EnableMouse(true);
+	f:SetHitRectInsets(LO.hit[1], LO.hit[2], LO.hit[3], LO.hit[4]);
+	f:RegisterForDrag("LeftButton");
+	f:SetScript("OnDragStart", function() this:StartMoving(); end);
+	f:SetScript("OnDragStop", function() this:StopMovingOrSizing(); end);
+	f:SetFrameStrata("DIALOG");
+	f:Hide();
+	tinsert(UISpecialFrames, f:GetName())
+
+	f:SetScript("OnShow", function() PlaySound("igCharacterInfoOpen"); end);
+	f:SetScript("OnHide", function() PlaySound("igCharacterInfoClose"); end);
+
+	local portrait = f:CreateTexture(nil, "BACKGROUND");
+	portrait:SetSize(60, 60);
+	portrait:SetPoint("TOPLEFT", 7, -6);
+	f.portrait = portrait;
+
+	for i = 1, table.getn(LO.quads) do
+		local q = LO.quads[i];
+		local tx = f:CreateTexture(nil, "BORDER");
+		tx:SetTexture(q[1]);
+		tx:SetSize(q[2], q[3]);
+		tx:SetPoint(q[4]);
+	end
+
+	-- Horizontal divider between the recipe list and the detail pane.
+	-- Stock only (Turtle's HD frame art already has its own).
+	if LO.sep then
+		-- Decoded the BLP: it's a thin divider rod whose graphic lives in the
+		-- top quarter of the 256x64 texture (a 2nd rod fills the next quarter,
+		-- bottom half empty). So sample the top quarter, stretched to width —
+		-- the same region the native TradeSkillFrame uses for this divider.
+		local bar = f:CreateTexture(nil, "ARTWORK");
+		bar:SetTexture("Interface\\ClassTrainerFrame\\UI-ClassTrainer-HorizontalBar");
+		bar:SetTexCoord(0, 1, 0, 0.25);
+		bar:SetSize(LO.sep[3], 16);
+		bar:SetPoint("TOPLEFT", LO.sep[1], LO.sep[2]);
+	end
+
+	local title = f:CreateFontString(nil, "OVERLAY", "GameFontNormal");
+	title:SetPoint("TOP", 0, -18);
+	f.title = title;
+
+	local close = CreateFrame("Button", nil, f, "UIPanelCloseButton");
+	close:SetPoint("TOPRIGHT", LO.close[1], LO.close[2]);
+
+	local exit = CreateFrame("Button", nil, f, "UIPanelButtonTemplate");
+	exit:SetSize(80, 22);
+	exit:SetPoint(LO.exit[1], f, LO.exit[2], LO.exit[3], LO.exit[4]);
+	exit:SetText(EXIT);
+	exit:SetScript("OnClick", function() f:Hide(); end);
+
+	local bar = CreateFrame("StatusBar", nil, f);
+	bar:SetSize(LO.bar[1], LO.bar[2]);
+	bar:SetPoint("TOPLEFT", LO.bar[3], LO.bar[4]);
+	bar:SetStatusBarTexture("Interface\\PaperDollInfoFrame\\UI-Character-Skills-Bar");
+	bar:SetStatusBarColor(0.0, 0.0, 1.0, 0.5);
+	bar:SetMinMaxValues(0, 1);
+	local barBg = bar:CreateTexture(nil, "BACKGROUND");
+	barBg:SetAllPoints(bar);
+	barBg:SetTexture(1, 1, 1, 0.2);
+	barBg:SetVertexColor(0.0, 0.0, 0.75, 0.5);
+	-- Border: tooltip edge around the bar (TradeSkillRankFrameBorder).
+	local border = CreateFrame("Frame", nil, bar);
+	border:SetSize(LO.barBdr[1], LO.barBdr[2]);
+	border:SetPoint("LEFT", -5, 1);
+	border:SetBackdrop({
+		edgeFile = "Interface\\Tooltips\\UI-Tooltip-Border", edgeSize = 16,
+	});
+	border:SetBackdropBorderColor(0.4, 0.4, 0.4);
+	local barName = bar:CreateFontString(nil, "OVERLAY", "GameFontNormalSmall");
+	barName:SetPoint("LEFT", 6, 1);
+	local barRank = bar:CreateFontString(nil, "OVERLAY", "GameFontHighlightSmall");
+	barRank:SetJustifyH("LEFT");
+	barRank:SetWidth(128);
+	barRank:SetPoint("LEFT", barName, "RIGHT", 13, 0);
+	f.bar = bar;
+	f.barName = barName;
+	f.barRank = barRank;
+
+	local summary = f:CreateFontString(nil, "OVERLAY", "GameFontHighlightSmall");
+	summary:SetPoint(LO.summary[1], LO.summary[2], LO.summary[3]);
+	f.summary = summary;
+
+	local dropdown = CreateFrame("Frame", "ClassicAPITradeSkillLinkSubClass", f,
+		"UIDropDownMenuTemplate");
+	dropdown:SetPoint("TOPLEFT", LO.drop[1], LO.drop[2]);
+	f.dropdown = dropdown;
+	f.subclassFilter = nil; -- nil = all subclasses
+
+	local scroll = CreateFrame("ScrollFrame", "ClassicAPITradeSkillLinkScroll",
+		f, LIST_SCROLL_TEMPLATE);
+	scroll:SetSize(LO.scroll[1], LO.scroll[2]);
+	scroll:SetPoint("TOPLEFT", LO.scroll[3], LO.scroll[4]);
+	scroll:SetScript("OnVerticalScroll", function()
+		FauxScrollFrame_OnVerticalScroll(ROW_HEIGHT, function() f:Refresh(); end)
+	end)
+	f.scroll = scroll;
+
+	f.rows = {};
+	for i = 1, NUM_ROWS do
+		local rowName = "ClassicAPITradeSkillLinkRow" .. i;
+		local row = CreateFrame("Button", rowName, f,
+			"ClassTrainerSkillButtonTemplate");
+		row:SetWidth(290); -- height (16) comes from the template
+		if i == 1 then
+			row:SetPoint("TOPLEFT", scroll, "TOPLEFT", 0, 0);
+		else
+			row:SetPoint("TOPLEFT", f.rows[i - 1], "BOTTOMLEFT", 0, 0);
+		end
+
+		row:SetNormalTexture("");
+		row:SetDisabledTexture("");
+		row:SetHighlightTexture("");
+
+		local txt = getglobal(rowName .. "Text");
+		if txt then
+			txt:ClearAllPoints();
+			txt:SetPoint("LEFT", row, "LEFT", 4, 0);
+		end
+
+		local sel = row:CreateTexture(nil, "BACKGROUND");
+		sel:SetTexture("Interface\\Buttons\\UI-Listbox-Highlight2");
+		sel:SetAllPoints(row);
+		sel:Hide();
+		row.select = sel;
+
+		-- Override the template's trainer scripts with ours.
+		row:SetScript("OnClick", function()
+			if this.entry then
+				f:SelectRecipe(this.entry);
+			end
+		end);
+
+		f.rows[i] = row;
+	end
+
+	-- Detail pane: a real ScrollFrame (like the native TradeSkillFrame's
+	-- TradeSkillDetailScrollFrame) whose scroll child holds the product
+	-- header + reagent grid, so the whole pane pixel-scrolls — clipping
+	-- partial reagent rows — with the standard UIPanelScrollBar. The bar
+	-- auto-hides when the content fits (scrollBarHideable).
+	local detailScroll = CreateFrame("ScrollFrame",
+		"ClassicAPITradeSkillLinkDetailScroll", f, DETAIL_SCROLL_TEMPLATE);
+	detailScroll:SetSize(LO.detail[3], LO.detail[4]);
+	detailScroll:SetPoint("TOPLEFT", LO.detail[1], LO.detail[2]);
+	-- Bar visibility + wheel are driven per-render by SetDetailBarShown (from
+	-- the computed overflow). `scrollBarHideable` still lets the template's
+	-- ScrollFrame_OnScrollRangeChanged manage the slider on range changes.
+	-- Start with the wheel off; the first RenderDetail/ClearDetail sets it.
+	detailScroll.scrollBarHideable = 1;
+	detailScroll:EnableMouseWheel(false);
+	f.detailScroll = detailScroll;
+
+	local detailChild = CreateFrame("Frame",
+		"ClassicAPITradeSkillLinkDetailChild", detailScroll);
+	detailChild:SetSize(LO.detail[3], LO.detail[4]);
+	detailScroll:SetScrollChild(detailChild);
+	f.detailChild = detailChild;
+
+	local prodIcon = CreateFrame("Button", nil, detailChild);
+	prodIcon:SetSize(37, 37);  -- native TradeSkillSkillIcon (37x37 @ 8,-3)
+	prodIcon:SetPoint("TOPLEFT", 8, -3);
+	prodIcon:SetNormalTexture("Interface\\Icons\\INV_Misc_QuestionMark");
+	local hdrLeft = detailChild:CreateTexture(nil, "BACKGROUND");
+	hdrLeft:SetTexture("Interface\\ClassTrainerFrame\\UI-ClassTrainer-DetailHeaderLeft");
+	hdrLeft:SetSize(256, 64); -- Blizzard's native fill width (+64 cap = 320 total)
+	hdrLeft:SetPoint("TOPLEFT", prodIcon, "TOPLEFT", -8, 6);
+	local hdrRight = detailChild:CreateTexture(nil, "BACKGROUND");
+	hdrRight:SetTexture("Interface\\ClassTrainerFrame\\UI-ClassTrainer-DetailHeaderRight");
+	hdrRight:SetSize(64, 64);
+	hdrRight:SetPoint("TOPLEFT", hdrLeft, "TOPRIGHT", 0, 0);
+	local prodCount = prodIcon:CreateFontString(nil, "ARTWORK", "NumberFontNormal");
+	prodCount:SetPoint("BOTTOMRIGHT", -5, 2);
+	prodIcon.count = prodCount;
+	f.prodIcon = prodIcon;
+
+	local prodName = detailChild:CreateFontString(nil, "ARTWORK", "GameFontNormal");
+	prodName:SetPoint("LEFT", prodIcon, "RIGHT", 5, 0);
+	prodName:SetWidth(LO.detail[3] - 60);
+	prodName:SetJustifyH("LEFT");
+	prodName:SetJustifyV("MIDDLE");
+	f.prodName = prodName;
+
+	local prodDesc = detailChild:CreateFontString(nil, "ARTWORK", "GameFontHighlightSmall");
+	prodDesc:SetPoint("TOPLEFT", prodIcon, "BOTTOMLEFT", 0, -6);
+	prodDesc:SetWidth(LO.detail[3] - 20);
+	prodDesc:SetJustifyH("LEFT");
+	prodDesc:SetJustifyV("TOP");
+	f.prodDesc = prodDesc;
+
+	local reagentLabel = detailChild:CreateFontString(nil, "ARTWORK", "GameFontNormalSmall");
+	reagentLabel:SetPoint("TOPLEFT", prodDesc, "BOTTOMLEFT", 0, -8);
+	reagentLabel:SetText(SPELL_REAGENTS or "Reagents:");
+	f.reagentLabel = reagentLabel;
+
+	prodIcon:SetScript("OnEnter", function()
+		GameTooltip:SetOwner(this, "ANCHOR_RIGHT");
+		if this.itemLink then
+			GameTooltip:SetHyperlink(this.itemLink);
+		elseif this.spellID then
+			GameTooltip:SetSpellByID(this.spellID);
+		end
+		GameTooltip:Show();
+	end);
+	prodIcon:SetScript("OnLeave", GameTooltip_Hide);
+
+	-- Reagent buttons live in the scroll child (2 per row), built on
+	-- demand so any reagent count is handled and they scroll/clip with
+	-- the child.
+	f.reagents = {};
+	local function AcquireReagent(i)
+		if f.reagents[i] then
+			return f.reagents[i];
+		end
+		local rowN = math.floor((i - 1) / 2);
+		local col = (i - 1) - rowN * 2;
+		local btn = CreateFrame("Button", nil, detailChild);
+		btn:SetSize(39, 39);
+		btn:SetPoint("TOPLEFT", reagentLabel, "BOTTOMLEFT",
+			col * 134 - 5, -3 - rowN * REAGENT_ROW_HEIGHT);
+		-- Extend the hit area rightward over the name plate so the tooltip
+		-- fires anywhere on the element, not just the icon. Stop short of the
+		-- next column (pitch 134 − icon 39) so hovers don't bleed across.
+		btn:SetHitRectInsets(0, -(134 - 39), 0, 0);
+		btn:SetNormalTexture("Interface\\Icons\\INV_Misc_QuestionMark");
+		local plate = btn:CreateTexture(nil, "BACKGROUND");
+		plate:SetTexture("Interface\\QuestFrame\\UI-QuestItemNameFrame");
+		plate:SetSize(114, 64);
+		plate:SetPoint("LEFT", btn, "RIGHT", -10, 0);
+		local cnt = btn:CreateFontString(nil, "ARTWORK", "NumberFontNormal");
+		cnt:SetPoint("BOTTOMRIGHT", -4, 1);
+		btn.count = cnt;
+		local nm = btn:CreateFontString(nil, "ARTWORK", "GameFontHighlight");
+		nm:SetPoint("LEFT", plate, "LEFT", 15, 0);
+		nm:SetSize(80, 36);
+		nm:SetJustifyH("LEFT");
+		nm:SetJustifyV("MIDDLE");
+		btn.nameText = nm;
+		btn:SetScript("OnEnter", function()
+			if this.itemLink then
+				GameTooltip:SetOwner(this, "ANCHOR_RIGHT");
+				GameTooltip:SetHyperlink(this.itemLink);
+				GameTooltip:Show();
+			end
+		end);
+		btn:SetScript("OnLeave", GameTooltip_Hide);
+		f.reagents[i] = btn;
+		return btn;
+	end
+
+	-- Show the detail bar/borders only when the content overflows the pane.
+	-- Driven by our own computed overflow, NOT the engine: scrollBarHideable's
+	-- auto-hide only fires on a range CHANGE (so content that fits from the
+	-- start never hides), and GetVerticalScrollRange isn't reliably readable
+	-- the same tick as UpdateScrollChildRect.
+	function f:SetDetailBarShown(show)
+		self.detailScroll:EnableMouseWheel(show);
+		local base = "ClassicAPITradeSkillLinkDetailScroll";
+		local sb = getglobal(base .. "ScrollBar");
+		if sb then sb:SetShown(show) end
+		local top = getglobal(base .. "Top");
+		if top then top:SetShown(show) end
+		local bottom = getglobal(base .. "Bottom");
+		if bottom then bottom:SetShown(show) end
+	end
+
+	function f:RenderDetail(entry)
+		local function itemInfo(id)
+			local item = Item:CreateFromItemID(id);
+			if not item:IsItemDataCached() then
+				item:ContinueOnItemLoad(function()
+					if self:IsShown() and self.selectedSpellID == entry.spellID then
+						self:RenderDetail(entry);
+					end
+				end);
+			end
+			return item:GetItemName(), item:GetItemIcon(), item:GetItemLink();
+		end
+
+		local prodTex, prodText, prodLink;
+		local created = entry.createdItem or 0;
+		if created > 0 then
+			local name, tex, link = itemInfo(created);
+			prodText = name or entry.name;
+			prodTex = tex;
+			prodLink = link;
+		else
+			prodText = entry.name;
+			prodTex = C_Spell.GetSpellTexture(entry.spellID);
+		end
+		local descText = (created > 0) and ""
+			or (C_Spell.GetSpellDescription(entry.spellID) or "");
+		self.prodDesc:SetText(descText);
+		self.prodIcon:SetNormalTexture(prodTex or
+			"Interface\\Icons\\INV_Misc_QuestionMark");
+		self.prodName:SetText(prodText or "");
+		self.prodName:SetTextColor(NORMAL_FONT_COLOR:GetRGB());
+		self.prodIcon.itemLink = prodLink;      -- item tooltip when created > 0
+		self.prodIcon.spellID = entry.spellID;  -- else spell tooltip
+		local made = entry.numMade or 0;
+		self.prodIcon.count:SetText(made > 1 and tostring(made) or "");
+		self.prodIcon:Show();
+
+		-- Fill every reagent slot; the scroll child clips/scrolls the
+		-- overflow. Buttons past the count are hidden.
+		local reagents = entry.reagents or {};
+		local total = table.getn(reagents);
+		for i = 1, total do
+			local btn = AcquireReagent(i);
+			local reagent = reagents[i];
+			local name, tex, link = itemInfo(reagent.itemID);
+			btn:SetNormalTexture(tex or "Interface\\Icons\\INV_Misc_QuestionMark");
+			btn.itemLink = link;
+			btn.nameText:SetText(name or ("item:" .. reagent.itemID));
+			local need = reagent.count or 1;
+			local have = C_Item.GetItemCount(reagent.itemID) or 0;
+			if have >= need then
+				local r, g, b = HIGHLIGHT_FONT_COLOR:GetRGB()
+				btn:GetNormalTexture():SetVertexColor(r, g, b);
+				btn.nameText:SetTextColor(r, g, b);
+			else
+				local r, g, b = GRAY_FONT_COLOR:GetRGB()
+				btn:GetNormalTexture():SetVertexColor(r, g, b);
+				btn.nameText:SetTextColor(r, g, b);
+			end
+			local haveText = (have >= 100) and "*" or tostring(have);
+			btn.count:SetText(haveText .. " /" .. need);
+			btn:Show();
+		end
+		for i = total + 1, table.getn(self.reagents) do
+			self.reagents[i].itemLink = nil;
+			self.reagents[i]:Hide();
+		end
+
+		local function applyContentHeight()
+			local contentH = LO.detail[4];
+			if total > 0 then
+				local childTop = self.detailChild:GetTop();
+				local lastBtn = self.reagents[total];
+				local lastBottom = lastBtn and lastBtn:GetBottom();
+				if childTop and lastBottom then
+					-- +22: ~12px name-plate overhang below the icon + ~10px pad.
+					contentH = (childTop - lastBottom) + 22;
+				end
+			end
+			self.detailChild:SetHeight(math.max(contentH, LO.detail[4]));
+			-- Recompute the scroll range from the child's new height, then
+			-- show the bar only if the content actually overflows the pane.
+			self.detailScroll:UpdateScrollChildRect();
+			self:SetDetailBarShown(contentH > LO.detail[4] + 0.5);
+		end
+		applyContentHeight();
+		local sb = getglobal("ClassicAPITradeSkillLinkDetailScrollScrollBar");
+		if sb then
+			sb:SetValue(0);
+		end
+		self.detailScroll:SetVerticalScroll(0);
+		RunNextFrame(function()
+			if self:IsShown() and self.selectedSpellID == entry.spellID then
+				applyContentHeight();
+			end
+		end)
+	end
+
+	function f:SelectRecipe(entry)
+		self.selectedSpellID = entry.spellID;
+		self.selectedEntry = entry;
+		self:RenderDetail(entry);   -- also resets the detail scroll to top
+		self:Refresh();
+	end
+
+	function f:ClearDetail()
+		self.selectedSpellID = nil;
+		self.selectedEntry = nil;
+		self.prodIcon:Hide();
+		self.prodName:SetText("");
+		self.prodDesc:SetText("");
+		for i = 1, table.getn(self.reagents) do
+			self.reagents[i].itemLink = nil;
+			self.reagents[i]:Hide();
+		end
+		self.detailChild:SetHeight(LO.detail[4]);
+		self.detailScroll:UpdateScrollChildRect();
+		self:SetDetailBarShown(false);
+		self.detailScroll:SetVerticalScroll(0);
+	end
+
+	function f:Refresh()
+		local recipes = self.displayed or {};
+		local total = table.getn(recipes);
+		FauxScrollFrame_Update(self.scroll, total, NUM_ROWS, ROW_HEIGHT);
+		local offset = FauxScrollFrame_GetOffset(self.scroll);
+		for i = 1, NUM_ROWS do
+			local row = self.rows[i];
+			local entry = recipes[offset + i];
+			if entry then
+				-- Append " [N]" when the reader can craft any (Blizzard's list).
+				local craftable = CraftableCount(entry);
+				local label = entry.name or "";
+				if craftable and craftable > 0 then
+					label = label .. " [" .. craftable .. "]";
+				end
+				row:SetText(label);
+				local r, g, b = BAND_COLOR[entry.band or 3]:GetRGB();
+				if self.selectedSpellID and entry.spellID == self.selectedSpellID then
+					row.select:SetVertexColor(r, g, b);
+					row.select:Show();
+					row:SetTextColor(1, 1, 1);
+				else
+					row.select:Hide();
+					row:SetTextColor(r, g, b);
+				end
+				row.spellID = entry.spellID;
+				row.entry = entry;
+				row:Show();
+			else
+				row.spellID = nil;
+				row.entry = nil;
+				row.select:Hide();
+				row:Hide();
+			end
+		end
+	end
+
+	function f:ApplyFilter()
+		local src = self.recipes or {};
+		if not self.subclassFilter then
+			self.displayed = src;
+		else
+			local out = {};
+			for i = 1, table.getn(src) do
+				if src[i].subclass == self.subclassFilter then
+					table.insert(out, src[i]);
+				end
+			end
+			self.displayed = out;
+		end
+		local sb = getglobal("ClassicAPITradeSkillLinkScrollScrollBar");
+		if sb then
+			sb:SetValue(0);
+		end
+		self:Refresh();
+	end
+
+	f:RegisterEvent("BAG_UPDATE_DELAYED");
+	f:SetScript("OnEvent", function()
+		if not f:IsShown() then
+			return;
+		end
+		f:Refresh();
+		if f.selectedEntry then
+			f:RenderDetail(f.selectedEntry);
+		end
+	end);
+
+	return f;
+end
+
+local function ShowTradeSkillLink(link, text)
+	local id, cur, max, who, bits = ParseTradeLink(link);
+	if not id then
+		return false;
+	end
+	local recipes = C_TradeSkillUI.GetTradeSkillListRecipes(id, bits);
+	if not recipes then
+		return false;
+	end
+
+	local prof = text and string.match(text, "|h%[(.+)%]|h") or "Trade Skills";
+	local total = table.getn(recipes);
+	local knownList = {};
+	for i = 1, total do
+		local r = recipes[i];
+		if r.isKnown then
+			r.band = DifficultyBand(cur or 0, r.trivialLevel, r.greenLevel);
+			r.name = GetSpellInfo(r.spellID) or ("spell:" .. r.spellID);
+			table.insert(knownList, r);
+		end
+	end
+	table.sort(knownList, function(a, b)
+		if a.band ~= b.band then
+			return a.band < b.band;
+		end
+		return a.name < b.name;
+	end);
+	local known = table.getn(knownList);
+
+	if not frame then
+		frame = CreateFrame_TradeSkillLink();
+	end
+	frame.title:SetText(who and who ~= "" and (who .. " - " .. prof) or prof);
+	SetPortraitToTexture(frame.portrait, ProfessionIcon(id));
+	frame.bar:SetMinMaxValues(0, (max and max > 0) and max or 1);
+	frame.bar:SetValue(cur or 0);
+	frame.barName:SetText(prof);
+	frame.barRank:SetText(string.format("%d/%d", cur or 0, max or 0));
+	frame.summary:SetText(string.format("%d of %d recipes known", known, total));
+	frame.recipes = knownList;
+	frame.subclassFilter = nil;
+
+	frame:ClearDetail();
+	frame:Show();
+	RefreshSubclasses();
+	frame:ApplyFilter();
+	local first = frame.displayed and frame.displayed[1];
+	if first then
+		frame:SelectRecipe(first);
+	end
+	return true;
+end
+
+------------------------------------------------------------------------------
+-- Click interception: handle `trade:` before the engine's SetHyperlink (which
+-- in 1.12 only knows item:/enchant: and would reject the link).
+------------------------------------------------------------------------------
+
+local originalSetItemRef = SetItemRef;
+function SetItemRef(link, text, button, chatFrame)
+	if type(link) == "string" and string.sub(link, 1, 6) == "trade:" then
+		if IsShiftKeyDown() and ChatFrameEditBox and ChatFrameEditBox:IsVisible() then
+			ChatFrameEditBox:Insert(text);
+			return;
+		end
+		if ShowTradeSkillLink(link, text) then
+			return;
+		end
+	end
+	return originalSetItemRef(link, text, button, chatFrame);
+end
+
+local function CreateProfessionLinkButton(parentName, getLink)
+	local parent = _G[parentName];
+	local btnName = parentName .. "LinkButton";
+	if _G[btnName] or not parent then
+		return;
+	end
+	local title = _G[parentName .. "TitleText"];
+	local btn = CreateFrame("Button", btnName, parent);
+	btn:SetSize(16, 16);
+
+	local function reposition()
+		if not title then
+			return;
+		end
+		btn:ClearAllPoints();
+		if title:GetJustifyH() == "LEFT" then
+			btn:SetPoint("LEFT", title, "LEFT", title:GetStringWidth() + 4, 0);
+		else
+			btn:SetPoint("LEFT", title, "CENTER", title:GetStringWidth() / 2 + 4, 0);
+		end
+	end
+	reposition()
+	btn:SetScript("OnShow", function() RunNextFrame(reposition) end)
+	hooksecurefunc(title, "SetText", function() RunNextFrame(reposition) end)
+
+	local icon = "Interface\\GossipFrame\\PetitionGossipIcon";
+	btn:SetNormalTexture(icon);
+	btn:SetHighlightTexture(icon, "ADD");
+
+	btn:SetScript("OnClick", function()
+		local link = getLink();
+		if not link then
+			return;
+		end
+		if not ChatFrameEditBox:IsVisible() then
+			ChatFrameEditBox:Show();
+		end
+		ChatFrameEditBox:Insert(link);
+	end);
+	btn:SetScript("OnEnter", function()
+		GameTooltip:SetOwner(this, "ANCHOR_TOPLEFT");
+		GameTooltip:SetText(LINK_TRADESKILL_TOOLTIP, nil, nil, nil, nil, 1);
+		GameTooltip:Show();
+	end);
+	btn:SetScript("OnLeave", GameTooltip_Hide);
+end
+
+EventUtil.ContinueOnAddOnLoaded("Blizzard_TradeSkillUI", function()
+	CreateProfessionLinkButton("TradeSkillFrame", C_TradeSkillUI.GetTradeSkillListLink);
+end)
+
+EventUtil.ContinueOnAddOnLoaded("Blizzard_CraftUI", function()
+	CreateProfessionLinkButton("CraftFrame", C_TradeSkillUI.GetCraftListLink)
+end)
+
+EventUtil.ContinueOnAddOnLoaded("AdvancedTradeSkillWindow", function()
+	CreateProfessionLinkButton("ATSWFrame", function()
+		return atsw_oldmode and C_TradeSkillUI.GetCraftListLink() or C_TradeSkillUI.GetTradeSkillListLink()
+	end)
+end)
+
+EventUtil.ContinueOnAddOnLoaded("AdvancedTradeSkillWindow2", function()
+	CreateProfessionLinkButton("ATSWFrame", function()
+		return ATSW_TradeSkill() and C_TradeSkillUI.GetTradeSkillListLink() or C_TradeSkillUI.GetCraftListLink()
+	end)
+end)

AddOns/!!!ClassicAPI/locales/deDE.lua

@@ -0,0 +1,53 @@
+if GetLocale() ~= "deDE" then return end
+
+BINDING_NAME_FOCUSTARGET = "Fokus setzen";
+BINDING_NAME_TARGETFOCUS = "Fokus anvisieren";
+FOCUSTARGET = "Ziel als Fokus festlegen";
+ITEMS_VARIABLE_QUANTITY = "%d |4IGegenstand:Gegenstände;";
+ITEMS_EQUIPPED = "%d |4Gegenstand:Gegenstände; ausgerüstet";
+ITEMS_IN_INVENTORY = "%d |4Gegenstand:Gegenstände; im Inventar";
+ITEM_SLOTS_IGNORED = "%d |4Platz:Plätze; ignoriert";
+ITEM_MISSING = "%s fehlt";
+ITEMS_NOT_IN_INVENTORY = "%d |4Gegenstand fehlt:Gegenstände fehlen;";
+TARGETFOCUS = "Fokussierte Einheit anvisieren";
+-- BINDING_NAME_AOELOOT = "AoE Loot";
+COPPER_AMOUNT_SYMBOL = "K";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "G";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "Wenn Ihr diesen Gegenstand ersetzt, werden sich folgende Werte ändern:";
+ITEM_MOD_MANA_SHORT = "Mana";
+ITEM_MOD_HEALTH_SHORT = "Gesundheit";
+ITEM_MOD_AGILITY_SHORT = "Beweglichkeit";
+ITEM_MOD_STRENGTH_SHORT = "Stärke";
+ITEM_MOD_INTELLECT_SHORT = "Intelligenz";
+ITEM_MOD_SPIRIT_SHORT = "Willenskraft";
+ITEM_MOD_STAMINA_SHORT = "Ausdauer";
+ITEM_MOD_ATTACK_POWER_SHORT = "Angriffskraft";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "Distanzangriffskraft";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "Kritischer Trefferwert (Nah)";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "Kritischer Trefferwert (Distanz)";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "Trefferwert (Nah)";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "Trefferwert (Distanz)";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "Trefferwert (Zauber)";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "Kritischer Trefferwert (Zauber)";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "Bonusschaden";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "Bonusheilung";
+ITEM_MOD_MANA_REGENERATION_SHORT = "Manaregeneration";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "Verteidigung";
+ITEM_MOD_DODGE_RATING_SHORT = "Ausweichen";
+ITEM_MOD_PARRY_RATING_SHORT = "Parieren";
+ITEM_MOD_BLOCK_RATING_SHORT = "Blocken";
+ITEM_MOD_BLOCK_VALUE_SHORT = "Blocken";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "Schaden pro Sekunde";
+LARGE_NUMBER_SEPERATOR = ".";
+MINUTES_SECONDS = "%.2d:%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "S";
+SLASH_CLEARFOCUS1 = "/fokusaufheben";
+SLASH_CLEARFOCUS2 = "/clearfocus";
+SLASH_EQUIP_SET1 = "/Ausrüstungsset";
+SLASH_EQUIP_SET2 = "/equipset";
+SLASH_FOCUS1 = "/fokus";
+SLASH_FOCUS2 = "/focus";
+LINK_TRADESKILL_TOOLTIP = "Hier klicken, um einen Link zu Eurem Beruf zu erstellen.";

AddOns/!!!ClassicAPI/locales/enUS.lua

@@ -0,0 +1,51 @@
+BINDING_NAME_AOELOOT = "AoE Loot";
+BINDING_NAME_FOCUSTARGET = "Focus Target";
+BINDING_NAME_TARGETFOCUS = "Target Focus";
+COPPER_AMOUNT_SYMBOL = "c";
+FOCUSTARGET = "Focus Target";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "g";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "If you replace this item, the following stat changes will occur:";
+ITEM_MOD_MANA_SHORT = "Mana";
+ITEM_MOD_HEALTH_SHORT = "Health";
+ITEM_MOD_AGILITY_SHORT = "Agility";
+ITEM_MOD_STRENGTH_SHORT = "Strength";
+ITEM_MOD_INTELLECT_SHORT = "Intellect";
+ITEM_MOD_SPIRIT_SHORT = "Spirit";
+ITEM_MOD_STAMINA_SHORT = "Stamina";
+ITEM_MOD_ATTACK_POWER_SHORT = "Attack Power";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "Ranged Attack Power";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "Critical Strike (Melee)";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "Critical Strike (Ranged)";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "Hit (Melee)";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "Hit (Ranged)";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "Hit (Spell)";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "Critical Strike (Spell)";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "Spell Damage";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "Spell Healing";
+ITEM_MOD_MANA_REGENERATION_SHORT = "Mana Regeneration";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "Defense";
+ITEM_MOD_DODGE_RATING_SHORT = "Dodge";
+ITEM_MOD_PARRY_RATING_SHORT = "Parry";
+ITEM_MOD_BLOCK_RATING_SHORT = "Block";
+ITEM_MOD_BLOCK_VALUE_SHORT = "Block Value";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "Damage Per Second";
+ITEMS_EQUIPPED = "%d |4item:items; equipped";
+ITEMS_IN_INVENTORY = "%d |4item:items; in inventory";
+ITEMS_NOT_IN_INVENTORY = "%d |4item:items; missing";
+ITEMS_VARIABLE_QUANTITY = "%d |4Item:Items;";
+ITEM_MISSING = "%s missing";
+ITEM_SLOTS_IGNORED = "%d |4slot:slots; ignored";
+LARGE_NUMBER_SEPERATOR = ",";
+MINUTES_SECONDS = "%.2d:%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "s";
+SLASH_CLEARFOCUS1 = "/clearfocus";
+SLASH_CLEARFOCUS2 = "/clearfocus";
+SLASH_EQUIP_SET1 = "/equipset";
+SLASH_EQUIP_SET2 = "/equipset";
+SLASH_FOCUS1 = "/focus";
+SLASH_FOCUS2 = "/focus";
+TARGETFOCUS = "Target Focus";
+LINK_TRADESKILL_TOOLTIP = "Click here to create a link to your profession.";

AddOns/!!!ClassicAPI/locales/esES.lua

@@ -0,0 +1,53 @@
+if GetLocale() ~= "esES" then return end
+
+BINDING_NAME_FOCUSTARGET = "Establecer objetivo";
+BINDING_NAME_TARGETFOCUS = "Seleccionar enfocado";
+FOCUSTARGET = "Establecer objetivo";
+ITEMS_VARIABLE_QUANTITY = "%d |4objeto:objetos;";
+ITEMS_EQUIPPED = "Equipado: %d |4objeto:objetos;";
+ITEMS_IN_INVENTORY = "En inventario: %d |4objeto:objetos;";
+ITEM_SLOTS_IGNORED = "Ignorado: %d |4casilla:casillas;";
+ITEM_MISSING = "Falta: %s";
+ITEMS_NOT_IN_INVENTORY = "Faltan: %d |4objeto:objetos;";
+TARGETFOCUS = "Fijar unidad objetivo";
+-- BINDING_NAME_AOELOOT = "AoE Loot";
+COPPER_AMOUNT_SYMBOL = "c";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "o";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "Si reemplazas este objeto, se producirán los siguientes cambios en las estadísticas:";
+ITEM_MOD_MANA_SHORT = "Maná";
+ITEM_MOD_HEALTH_SHORT = "Salud";
+ITEM_MOD_AGILITY_SHORT = "agilidad";
+ITEM_MOD_STRENGTH_SHORT = "fuerza";
+ITEM_MOD_INTELLECT_SHORT = "intelecto";
+ITEM_MOD_SPIRIT_SHORT = "espíritu";
+ITEM_MOD_STAMINA_SHORT = "aguante";
+ITEM_MOD_ATTACK_POWER_SHORT = "Poder de ataque";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "Poder de ataque a distancia";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "Golpe crítico (cuerpo a cuerpo)";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "Golpe crítico (a distancia)";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "Golpe (cuerpo a cuerpo)";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "Golpe (a distancia)";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "Golpe (hechizo)";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "Golpe crítico (hechizo)";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "Bon. daño";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "Bon. sanac.";
+ITEM_MOD_MANA_REGENERATION_SHORT = "Regeneración de maná";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "Defensa";
+ITEM_MOD_DODGE_RATING_SHORT = "Esquiva";
+ITEM_MOD_PARRY_RATING_SHORT = "Parada";
+ITEM_MOD_BLOCK_RATING_SHORT = "Bloqueo";
+ITEM_MOD_BLOCK_VALUE_SHORT = "Valor de bloqueo";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "daño por segundo";
+LARGE_NUMBER_SEPERATOR = "";
+MINUTES_SECONDS = "%.2d:%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "p";
+SLASH_CLEARFOCUS1 = "/quitarenfoque";
+SLASH_CLEARFOCUS2 = "/clearfocus";
+SLASH_EQUIP_SET1 = "/conjequip";
+SLASH_EQUIP_SET2 = "/equipset";
+SLASH_FOCUS1 = "/enfoque";
+SLASH_FOCUS2 = "/focus";
+LINK_TRADESKILL_TOOLTIP = "Haz clic aquí para crear un vínculo a tu profesión.";

AddOns/!!!ClassicAPI/locales/frFR.lua

@@ -0,0 +1,53 @@
+if GetLocale() ~= "frFR" then return end
+
+BINDING_NAME_FOCUSTARGET = "Définir cible";
+BINDING_NAME_TARGETFOCUS = "Reprendre cible";
+FOCUSTARGET = "Définir la cible de focalisation";
+ITEMS_VARIABLE_QUANTITY = "%d |4objet:objets;";
+ITEMS_EQUIPPED = "%d |4objet:objets; équipés";
+ITEMS_IN_INVENTORY = "%d |4objet:objets; dans l'inventaire";
+ITEM_SLOTS_IGNORED = "%d |4emplacement ignoré:emplacements ignorés;";
+ITEM_MISSING = "Objet manquant : %s";
+ITEMS_NOT_IN_INVENTORY = "%d |4objet:objets; manquants";
+TARGETFOCUS = "Cibler l'unité focalisée";
+-- BINDING_NAME_AOELOOT = "AoE Loot";
+COPPER_AMOUNT_SYMBOL = "c";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "o";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "Si vous remplacez cet objet, les caractéristiques suivantes seront modifiées :";
+ITEM_MOD_MANA_SHORT = "Mana";
+ITEM_MOD_HEALTH_SHORT = "Vie";
+ITEM_MOD_AGILITY_SHORT = "Agilité";
+ITEM_MOD_STRENGTH_SHORT = "Force";
+ITEM_MOD_INTELLECT_SHORT = "Intelligence";
+ITEM_MOD_SPIRIT_SHORT = "Esprit";
+ITEM_MOD_STAMINA_SHORT = "Endurance";
+ITEM_MOD_ATTACK_POWER_SHORT = "Puissance d'attaque";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "Puissance d'attaque à distance";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "Score de critique (mêlée)";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "Score de critique (distance)";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "Toucher (mêlée)";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "Toucher (distance)";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "Toucher (sorts)";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "Score de critique (sorts)";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "Bonus aux dégâts";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "Bonus aux soins";
+ITEM_MOD_MANA_REGENERATION_SHORT = "Régénération du mana";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "Défense";
+ITEM_MOD_DODGE_RATING_SHORT = "Esquive";
+ITEM_MOD_PARRY_RATING_SHORT = "Parade";
+ITEM_MOD_BLOCK_RATING_SHORT = "Blocage";
+ITEM_MOD_BLOCK_VALUE_SHORT = "Valeur de blocage";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "Dégâts par seconde";
+LARGE_NUMBER_SEPERATOR = "";
+MINUTES_SECONDS = "%.2d:%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "a";
+SLASH_CLEARFOCUS1 = "/clearfocus";
+SLASH_CLEARFOCUS2 = "/annulerfocal";
+SLASH_EQUIP_SET1 = "/equipset";
+SLASH_EQUIP_SET2 = "/équipens";
+SLASH_FOCUS1 = "/focus";
+SLASH_FOCUS2 = "/focal";
+LINK_TRADESKILL_TOOLTIP = "Cliquez ici pour créer un lien vers votre profession.";

AddOns/!!!ClassicAPI/locales/locales.xml

@@ -0,0 +1,9 @@
+<Ui xmlns="http://www.blizzard.com/wow/ui/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.blizzard.com/wow/ui/..\FrameXML\UI.xsd">
+	<Script file="enUS.lua"/>
+    <Script file="deDE.lua"/>
+    <Script file="esES.lua"/>
+    <Script file="frFR.lua"/>
+    <Script file="ruRU.lua"/>
+    <Script file="zhCN.lua"/>
+    <Script file="zhTW.lua"/>
+</Ui>

AddOns/!!!ClassicAPI/locales/ruRU.lua

@@ -0,0 +1,53 @@
+if GetLocale() ~= "ruRU" then return end
+
+BINDING_NAME_FOCUSTARGET = "Запомненная цель";
+BINDING_NAME_TARGETFOCUS = "Восстановить цель";
+FOCUSTARGET = "Запомнить цель";
+ITEMS_VARIABLE_QUANTITY = "%d |4предмет:предмета:предметов;";
+ITEMS_EQUIPPED = "%d |4предмет экипирован:предмета экипировано:предметов экипировано;";
+ITEMS_IN_INVENTORY = "%d |4предмет:предмета:предметов; в сумках";
+ITEM_SLOTS_IGNORED = "%d |4ячейка пропущена:ячейки пропущены:ячейки пропущены;";
+ITEM_MISSING = "Предмет для ячейки %s отсутствует";
+ITEMS_NOT_IN_INVENTORY = "%d |4предмет отсутствует:предмета отсутствует:предметов отсутствуют;";
+TARGETFOCUS = "Восстановить цель";
+-- BINDING_NAME_AOELOOT = "AoE Loot";
+COPPER_AMOUNT_SYMBOL = "м";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "з";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "Если вы замените этот предмет, произойдут следующие изменения:";
+ITEM_MOD_MANA_SHORT = "к мане";
+ITEM_MOD_HEALTH_SHORT = "к здоровью";
+ITEM_MOD_AGILITY_SHORT = "к ловкости";
+ITEM_MOD_STRENGTH_SHORT = "к силе";
+ITEM_MOD_INTELLECT_SHORT = "к интеллекту";
+ITEM_MOD_SPIRIT_SHORT = "к духу";
+ITEM_MOD_STAMINA_SHORT = "к выносливости";
+ITEM_MOD_ATTACK_POWER_SHORT = "к силе атаки";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "к силе атаки дальнего боя";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "к показателю критического удара в ближнем бою";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "к показателю критического удара в дальнем бою";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "к меткости  в ближнем бою";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "к меткости в дальнем бою";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "к меткости заклинаний";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "к критическому эффекту заклинаний";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "к дополнительному урону";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "к дополнительному исцелению";
+ITEM_MOD_MANA_REGENERATION_SHORT = "к восполнению маны";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "Защита";
+ITEM_MOD_DODGE_RATING_SHORT = "Уклонение";
+ITEM_MOD_PARRY_RATING_SHORT = "Парирование";
+ITEM_MOD_BLOCK_RATING_SHORT = "Блок";
+ITEM_MOD_BLOCK_VALUE_SHORT = "к показателю блокирования";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "к урону в секунду";
+LARGE_NUMBER_SEPERATOR = "";
+MINUTES_SECONDS = "%.2d:%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "с";
+SLASH_CLEARFOCUS1 = "/clearfocus";
+SLASH_CLEARFOCUS2 = "/сбросфокуса";
+SLASH_EQUIP_SET1 = "/комплект";
+SLASH_EQUIP_SET2 = "/equipset";
+SLASH_FOCUS1 = "/focus";
+SLASH_FOCUS2 = "/фокус";
+LINK_TRADESKILL_TOOLTIP = "Щелкните здесь, чтобы создать ссылку на вашу профессию.";

AddOns/!!!ClassicAPI/locales/zhCN.lua

@@ -0,0 +1,53 @@
+if GetLocale() ~= "zhCN" then return end
+
+BINDING_NAME_FOCUSTARGET = "焦点目标";
+BINDING_NAME_TARGETFOCUS = "目标焦点";
+FOCUSTARGET = "设定焦点目标";
+ITEMS_VARIABLE_QUANTITY = "%d件物品";
+ITEMS_EQUIPPED = "已装备%d件物品";
+ITEMS_IN_INVENTORY = "背包中有%d件物品";
+ITEM_SLOTS_IGNORED = "忽略%d个栏位";
+ITEM_MISSING = "%s缺失";
+ITEMS_NOT_IN_INVENTORY = "缺少%d件物品";
+TARGETFOCUS = "选中焦点目标";
+-- BINDING_NAME_AOELOOT = "AoE Loot";
+COPPER_AMOUNT_SYMBOL = "铜";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "金";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "如果你替换该物品，将会产生以下的属性变更：";
+ITEM_MOD_MANA_SHORT = "法力值";
+ITEM_MOD_HEALTH_SHORT = "生命值";
+ITEM_MOD_AGILITY_SHORT = "敏捷";
+ITEM_MOD_STRENGTH_SHORT = "力量";
+ITEM_MOD_INTELLECT_SHORT = "智力";
+ITEM_MOD_SPIRIT_SHORT = "精神";
+ITEM_MOD_STAMINA_SHORT = "耐力";
+ITEM_MOD_ATTACK_POWER_SHORT = "攻击强度";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "远程攻击强度";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "爆击（近战）";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "爆击（远程）";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "命中（近战）";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "命中（远程）";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "命中（法术）";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "爆击（法术）";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "伤害加成";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "治疗加成";
+ITEM_MOD_MANA_REGENERATION_SHORT = "法力回复";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "防御";
+ITEM_MOD_DODGE_RATING_SHORT = "躲闪";
+ITEM_MOD_PARRY_RATING_SHORT = "招架";
+ITEM_MOD_BLOCK_RATING_SHORT = "格挡";
+ITEM_MOD_BLOCK_VALUE_SHORT = "格挡值";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "每秒伤害";
+LARGE_NUMBER_SEPERATOR = ",";
+MINUTES_SECONDS = "%.2d：%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "银";
+SLASH_CLEARFOCUS1 = "/clearfocus";
+SLASH_CLEARFOCUS2 = "/clearfocus";
+SLASH_EQUIP_SET1 = "/equipset";
+SLASH_EQUIP_SET2 = "/equipset";
+SLASH_FOCUS1 = "/focus";
+SLASH_FOCUS2 = "/focus";
+LINK_TRADESKILL_TOOLTIP = "点击这里以创建一个链接到你的专业的快捷方式。";

AddOns/!!!ClassicAPI/locales/zhTW.lua

@@ -0,0 +1,53 @@
+if GetLocale() ~= "zhTW" then return end
+
+BINDING_NAME_FOCUSTARGET = "鎖定目標";
+BINDING_NAME_TARGETFOCUS = "選定鎖定目標";
+FOCUSTARGET = "設定鎖定目標";
+ITEMS_VARIABLE_QUANTITY = "%d件物品";
+ITEMS_EQUIPPED = "裝備%d件物品";
+ITEMS_IN_INVENTORY = "%d件物品在物品欄中";
+ITEM_SLOTS_IGNORED = "忽略%d個欄位";
+ITEM_MISSING = "缺少%s物品";
+ITEMS_NOT_IN_INVENTORY = "缺少%d件物品";
+TARGETFOCUS = "選定鎖定單位";
+-- BINDING_NAME_AOELOOT = "AoE Loot";
+COPPER_AMOUNT_SYMBOL = "銅";
+GENERIC_FRACTION_STRING = "%d/%d";
+GOLD_AMOUNT_SYMBOL = "金";
+HOURS_MINUTES_SECONDS = "%.2d:%.2d:%.2d";
+ITEM_DELTA_DESCRIPTION = "若你更換此裝備，下列屬性將會改變：";
+ITEM_MOD_MANA_SHORT = "法力";
+ITEM_MOD_HEALTH_SHORT = "生命力";
+ITEM_MOD_AGILITY_SHORT = "敏捷";
+ITEM_MOD_STRENGTH_SHORT = "力量";
+ITEM_MOD_INTELLECT_SHORT = "智力";
+ITEM_MOD_SPIRIT_SHORT = "精神";
+ITEM_MOD_STAMINA_SHORT = "耐力";
+ITEM_MOD_ATTACK_POWER_SHORT = "攻擊強度";
+ITEM_MOD_RANGED_ATTACK_POWER_SHORT = "遠程攻擊強度";
+ITEM_MOD_CRIT_MELEE_RATING_SHORT = "致命一擊(近戰)";
+ITEM_MOD_CRIT_RANGED_RATING_SHORT = "致命一擊(遠程)";
+ITEM_MOD_HIT_MELEE_RATING_SHORT = "命中(近戰)";
+ITEM_MOD_HIT_RANGED_RATING_SHORT = "命中(遠程)";
+ITEM_MOD_HIT_SPELL_RATING_SHORT = "命中(法術)";
+ITEM_MOD_CRIT_SPELL_RATING_SHORT = "致命一擊(法術)";
+ITEM_MOD_SPELL_DAMAGE_DONE_SHORT = "傷害加成";
+ITEM_MOD_SPELL_HEALING_DONE_SHORT = "治療加成";
+ITEM_MOD_MANA_REGENERATION_SHORT = "法力恢復";
+ITEM_MOD_DEFENSE_SKILL_RATING_SHORT = "防禦";
+ITEM_MOD_DODGE_RATING_SHORT = "閃躲";
+ITEM_MOD_PARRY_RATING_SHORT = "招架";
+ITEM_MOD_BLOCK_RATING_SHORT = "格擋";
+ITEM_MOD_BLOCK_VALUE_SHORT = "格擋值";
+ITEM_MOD_DAMAGE_PER_SECOND_SHORT = "每秒傷害";
+LARGE_NUMBER_SEPERATOR = ",";
+MINUTES_SECONDS = "%.2d:%.2d";
+PERCENTAGE_STRING = "%d%%";
+SILVER_AMOUNT_SYMBOL = "銀";
+SLASH_CLEARFOCUS1 = "/clearfocus";
+SLASH_CLEARFOCUS2 = "/清除專注目標";
+SLASH_EQUIP_SET1 = "/equipset";
+SLASH_EQUIP_SET2 = "/裝備套裝";
+SLASH_FOCUS1 = "/focus";
+SLASH_FOCUS2 = "/專注目標";
+LINK_TRADESKILL_TOOLTIP = "點擊這裡以製造一個你專業技能的連結。";

AddOns/AoELootTest/AoELootTest.lua

@@ -0,0 +1,217 @@
+-- AoE Loot Test
+--
+-- /aoeloot opens a picker window listing every item in every lootable
+-- corpse within click range. Clicking a row hands the (guid, itemID)
+-- pair to C_Loot.LootUnitItem and re-scans so the picker refreshes
+-- with whatever's left.
+--
+-- Known visual: each scan opens / closes loot windows in rapid
+-- succession, so the Blizzard LootFrame flickers during the scan. This
+-- addon intentionally doesn't suppress that — the goal is to exercise
+-- the C++ surface, not to ship polished UI.
+
+local MAX_ROWS = 24
+local RESCAN_DELAY = 0.3 -- seconds; lets LootUnitItem complete before re-scan
+
+-- ---------- UI scaffolding ----------
+
+-- Frame geometry. Height is recomputed dynamically per scan so the
+-- window only takes up as much screen real estate as the result count
+-- needs — see `ResizeForRows`.
+local FRAME_WIDTH = 320
+local HEADER_HEIGHT = 64 -- title + status + insets; minimum frame height
+local ROW_HEIGHT = 22
+
+local frame = CreateFrame("Frame", "AoELootTestFrame", UIParent)
+frame:SetWidth(FRAME_WIDTH)
+frame:SetHeight(HEADER_HEIGHT)
+frame:SetPoint("CENTER", UIParent, "CENTER", 0, 0)
+frame:SetBackdrop({
+    bgFile = "Interface\\DialogFrame\\UI-DialogBox-Background",
+    edgeFile = "Interface\\DialogFrame\\UI-DialogBox-Border",
+    tile = true, tileSize = 32, edgeSize = 32,
+    insets = { left = 11, right = 12, top = 12, bottom = 11 },
+})
+frame:SetMovable(true)
+frame:EnableMouse(true)
+frame:RegisterForDrag("LeftButton")
+-- Vanilla 1.12 fires script handlers with the frame set as the global
+-- `this`, not as a `self` arg to the function. Passing `frame.StartMoving`
+-- directly (the modern shortcut) breaks because the C method has no
+-- `self` to operate on. Wrap in closures so `this:method()` resolves
+-- correctly inside the handler.
+frame:SetScript("OnDragStart", function() this:StartMoving() end)
+frame:SetScript("OnDragStop", function() this:StopMovingOrSizing() end)
+frame:Hide()
+
+local title = frame:CreateFontString(nil, "OVERLAY", "GameFontNormal")
+title:SetPoint("TOP", frame, "TOP", 0, -16)
+title:SetText("AoE Loot")
+
+local status = frame:CreateFontString(nil, "OVERLAY", "GameFontHighlightSmall")
+status:SetPoint("TOPLEFT", frame, "TOPLEFT", 18, -36)
+status:SetText("")
+
+local closeBtn = CreateFrame("Button", nil, frame, "UIPanelCloseButton")
+closeBtn:SetPoint("TOPRIGHT", frame, "TOPRIGHT", -6, -6)
+
+-- ---------- Row pool ----------
+
+local rows = {}
+
+local function CreateRow(parent, idx)
+    local row = CreateFrame("Button", nil, parent)
+    row:SetWidth(290)
+    row:SetHeight(20)
+    row:SetPoint("TOPLEFT", parent, "TOPLEFT", 15,
+                 -54 - (idx - 1) * ROW_HEIGHT)
+
+    local icon = row:CreateTexture(nil, "ARTWORK")
+    icon:SetWidth(18); icon:SetHeight(18)
+    icon:SetPoint("LEFT", row, "LEFT", 0, 0)
+    row.icon = icon
+
+    local text = row:CreateFontString(nil, "OVERLAY", "GameFontNormal")
+    text:SetPoint("LEFT", icon, "RIGHT", 6, 0)
+    text:SetPoint("RIGHT", row, "RIGHT", 0, 0)
+    text:SetJustifyH("LEFT")
+    row.text = text
+
+    local hl = row:CreateTexture(nil, "HIGHLIGHT")
+    hl:SetTexture("Interface\\QuestFrame\\UI-QuestTitleHighlight")
+    hl:SetBlendMode("ADD")
+    hl:SetAllPoints(row)
+
+    -- Tooltip on hover. The engine's native `SetHyperlink` does a
+    -- literal `SStrCmpI` of the input's first 5 chars against the
+    -- string `"item:"` at `.rdata` VA `0x00842D60` — anything that
+    -- starts with `|c...` (full link with color) or `|Hitem` (full
+    -- link without color) fails the prefix check with "Unknown link
+    -- type". Only the bare payload form survives.
+    --
+    -- We extract the payload from the engine's full link rather than
+    -- composing `item:ID:0:0:0` ourselves, so per-instance fields
+    -- (enchant / random-suffix / unique) survive round-trip and
+    -- "Stringy Wolf Meat of the Bear" tooltips correctly instead of
+    -- collapsing to the un-suffixed itemID.
+    row:SetScript("OnEnter", function()
+        if this.payload then
+            GameTooltip:SetOwner(this, "ANCHOR_RIGHT")
+            GameTooltip:SetHyperlink(this.payload)
+            GameTooltip:Show()
+        end
+    end)
+    row:SetScript("OnLeave", function() GameTooltip:Hide() end)
+
+    row:Hide()
+    return row
+end
+
+for i = 1, MAX_ROWS do
+    rows[i] = CreateRow(frame, i)
+end
+
+-- ---------- Render ----------
+
+-- Tail of a GUID string — last 4 hex chars of the low dword. Lets the
+-- user tell apart two rows of "Stringy Wolf Meat x1" coming from
+-- different corpses, without occupying a whole column with the full
+-- 16-digit GUID.
+local function ShortGuidSuffix(guid)
+    return "[.." .. string.sub(guid, -4) .. "]"
+end
+
+-- Extract the `item:ID:enchant:suffix:unique` payload out of the
+-- engine's full link string (`|cff...|Hitem:...|h[Name]|h|r`).
+-- Vanilla `SetHyperlink` requires the input to start literally with
+-- `"item:"` — so we can't pass the full link, but we also can't drop
+-- the per-instance fields (random suffix is what distinguishes "of
+-- the Bear" from "of the Eagle" on otherwise identical itemIDs).
+-- Returns the payload, or nil if extraction fails.
+local function PayloadFromLink(link)
+    if not link then return nil end
+    return string.match(link, "|H(item:[^|]+)|h")
+end
+
+local function ClearRows()
+    for i = 1, MAX_ROWS do
+        rows[i]:Hide()
+        rows[i]:SetScript("OnClick", nil)
+        rows[i].payload = nil
+    end
+end
+
+local function PopulateRows(results)
+    local idx = 0
+    for _, corpse in ipairs(results) do
+        for _, item in ipairs(corpse.items) do
+            idx = idx + 1
+            if idx > MAX_ROWS then break end
+            local row = rows[idx]
+            local name, _, _, _, _, _, _, _, icon = GetItemInfo(item.itemID)
+            row.icon:SetTexture(icon or "Interface\\Icons\\INV_Misc_QuestionMark")
+            local label = name or ("Item #" .. item.itemID)
+            if item.count and item.count > 1 then
+                label = label .. " x" .. item.count
+            end
+            label = label .. "  " .. ShortGuidSuffix(corpse.guid)
+            row.text:SetText(label)
+            row.payload = PayloadFromLink(item.link) -- for OnEnter tooltip
+            local guid, itemID = corpse.guid, item.itemID
+            row:SetScript("OnClick", function()
+                C_Loot.LootUnitItem(guid, itemID)
+                C_Timer.After(RESCAN_DELAY, function()
+                    if frame:IsShown() then C_Loot.ScanNearbyLoot() end
+                end)
+            end)
+            row:Show()
+        end
+        if idx > MAX_ROWS then break end
+    end
+    for i = idx + 1, MAX_ROWS do rows[i]:Hide() end
+    local shown
+    if idx == 0 then
+        status:SetText("Nothing lootable in range.")
+        shown = 0
+    elseif idx > MAX_ROWS then
+        status:SetText(MAX_ROWS .. "+ items (showing first " .. MAX_ROWS .. ")")
+        shown = MAX_ROWS
+    else
+        status:SetText(idx .. " item(s) available")
+        shown = idx
+    end
+    frame:SetHeight(HEADER_HEIGHT + shown * ROW_HEIGHT)
+end
+
+-- ---------- Scan trigger ----------
+
+local function StartScan()
+    status:SetText("Scanning...")
+    ClearRows()
+    frame:SetHeight(HEADER_HEIGHT) -- collapse while we wait for results
+    if not C_Loot.ScanNearbyLoot() then
+        status:SetText("Scan busy or not in world.")
+    end
+end
+
+-- ---------- Event wiring ----------
+
+local evt = CreateFrame("Frame")
+evt:RegisterEvent("LOOT_SCAN_COMPLETED")
+evt:SetScript("OnEvent", function()
+    -- Race guard: a delayed scan may complete after the user closed
+    -- the picker. Just drop the result rather than re-showing.
+    if not frame:IsShown() then return end
+    PopulateRows(C_Loot.GetLastScanResults())
+end)
+
+-- ---------- Slash command ----------
+
+RegisterNewSlashCommand(function()
+    if frame:IsShown() then
+        StartScan() -- already open → just refresh
+    else
+        frame:Show()
+        StartScan()
+    end
+end, "aoeloot", "aoe")

AddOns/AoELootTest/AoELootTest.toc

@@ -0,0 +1,7 @@
+## Interface: 11200
+## Title: AoE Loot Test
+## Notes: Test bed for ClassicAPI's C_Loot.ScanNearbyLoot / LootUnitItem. /aoeloot
+## Dependencies: !!!ClassicAPI
+## Version: DEV
+
+AoELootTest.lua

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.10)
 
-project(ClassicAPI LANGUAGES CXX)
+project(ClassicAPI LANGUAGES CXX RC)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -25,20 +25,72 @@ set(TINYCBOR_SOURCES
     external/tinycbor/src/cborparser_float.c
     external/tinycbor/src/cborerrorstrings.c)
 
-add_library(${PROJECT_NAME} SHARED ${SOURCES} ${HEADERS} ${TINYCBOR_SOURCES})
+# Bundle `AddOns/!!!ClassicAPI/` into a generated header so the DLL can
+# surface the addon to the engine even when the user doesn't have it
+# installed on disk. The file-read hook in `src/addons/Embedded.cpp`
+# returns these buffers when the engine asks for paths under
+# `Interface\AddOns\!!!ClassicAPI\`.
+set(EMBEDDED_CLASSICAPI_SRC "${CMAKE_CURRENT_SOURCE_DIR}/AddOns/!!!ClassicAPI")
+set(EMBEDDED_CLASSICAPI_HEADER "${CMAKE_BINARY_DIR}/generated/embedded_classicapi.h")
+file(GLOB_RECURSE EMBEDDED_CLASSICAPI_FILES CONFIGURE_DEPENDS
+     "${EMBEDDED_CLASSICAPI_SRC}/*")
+add_custom_command(
+    OUTPUT "${EMBEDDED_CLASSICAPI_HEADER}"
+    COMMAND ${CMAKE_COMMAND}
+        -DSRC_DIR=${EMBEDDED_CLASSICAPI_SRC}
+        -DOUT_HEADER=${EMBEDDED_CLASSICAPI_HEADER}
+        -DADDON_NAME=ClassicAPI
+        -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/embed_addon.cmake"
+    DEPENDS
+        ${EMBEDDED_CLASSICAPI_FILES}
+        "${CMAKE_CURRENT_SOURCE_DIR}/cmake/embed_addon.cmake"
+    COMMENT "Embedding !!!ClassicAPI addon into ${EMBEDDED_CLASSICAPI_HEADER}"
+    VERBATIM)
 
-set(CLASSICAPI_VERSION_VALUE 1)
+# Bundle `src/bindings/Bindings.xml` (our TARGETING-group additions)
+# into a generated header. `src/bindings/Inject.cpp` extracts the
+# inner `<Binding>` elements from the embedded buffer and splices them
+# into the engine's `Interface\FrameXML\Bindings.xml` at load time.
+set(EMBEDDED_BINDINGS_SRC "${CMAKE_CURRENT_SOURCE_DIR}/src/bindings/Bindings.xml")
+set(EMBEDDED_BINDINGS_HEADER "${CMAKE_BINARY_DIR}/generated/embedded_bindings.h")
+add_custom_command(
+    OUTPUT "${EMBEDDED_BINDINGS_HEADER}"
+    COMMAND ${CMAKE_COMMAND}
+        -DINPUT_FILE=${EMBEDDED_BINDINGS_SRC}
+        -DOUT_HEADER=${EMBEDDED_BINDINGS_HEADER}
+        -DSYMBOL=kEmbeddedBindingsXml
+        -P "${CMAKE_CURRENT_SOURCE_DIR}/cmake/embed_file.cmake"
+    DEPENDS
+        "${EMBEDDED_BINDINGS_SRC}"
+        "${CMAKE_CURRENT_SOURCE_DIR}/cmake/embed_file.cmake"
+    COMMENT "Embedding bindings XML into ${EMBEDDED_BINDINGS_HEADER}"
+    VERBATIM)
+
+add_library(${PROJECT_NAME} SHARED
+    ${SOURCES} ${HEADERS} ${TINYCBOR_SOURCES}
+    ${EMBEDDED_CLASSICAPI_HEADER}
+    ${EMBEDDED_BINDINGS_HEADER})
+
+# Dev-build sentinel — represents "newer than every plausible
+# release". Encoded as v9999.99.99 = 9999 * 10000 + 99 * 100 + 99 =
+# 99,999,999. Picked so addon-side feature gates of the form
+# `CLASSIC_API_VERSION >= X` always pass during local development;
+# CI release builds overwrite it via `-DCLASSICAPI_TAG=vX.Y.Z`.
+set(CLASSICAPI_VERSION_VALUE 99999999)
+set(CLASSICAPI_VER_MAJOR 9999)
+set(CLASSICAPI_VER_MINOR 99)
+set(CLASSICAPI_VER_PATCH 99)
 
 set(CLASSICAPI_TAG
     ""
     CACHE STRING "Release tag like v1.2.3")
 
 if(CLASSICAPI_TAG MATCHES "^v([0-9]+)\\.([0-9]+)\\.([0-9]+)$")
-  set(_MAJOR "${CMAKE_MATCH_1}")
-  set(_MINOR "${CMAKE_MATCH_2}")
-  set(_PATCH "${CMAKE_MATCH_3}")
+  set(CLASSICAPI_VER_MAJOR "${CMAKE_MATCH_1}")
+  set(CLASSICAPI_VER_MINOR "${CMAKE_MATCH_2}")
+  set(CLASSICAPI_VER_PATCH "${CMAKE_MATCH_3}")
   math(EXPR CLASSICAPI_VERSION_VALUE
-       "${_MAJOR} * 10000 + ${_MINOR} * 100 + ${_PATCH}")
+       "${CLASSICAPI_VER_MAJOR} * 10000 + ${CLASSICAPI_VER_MINOR} * 100 + ${CLASSICAPI_VER_PATCH}")
 elseif(CLASSICAPI_TAG)
   message(
     FATAL_ERROR
@@ -50,10 +102,27 @@ target_compile_definitions(
   ${PROJECT_NAME}
   PRIVATE CLASSICAPI_VERSION_VALUE=${CLASSICAPI_VERSION_VALUE})
 
-target_link_libraries(${PROJECT_NAME} PRIVATE minhook)
+# Stamp the PE VERSIONINFO resource from the same version components, so the
+# DLL's file/product version (Explorer -> Properties -> Details) matches the
+# CLASSIC_API_VERSION Lua global. The .rsrc section the resource lands in is
+# untouched by the .rdata/.pdata section merges below.
+set(CLASSICAPI_VER_STRING
+    "${CLASSICAPI_VER_MAJOR}.${CLASSICAPI_VER_MINOR}.${CLASSICAPI_VER_PATCH}.0")
+set(CLASSICAPI_VERSION_RC "${CMAKE_BINARY_DIR}/generated/version.rc")
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/version.rc.in"
+    "${CLASSICAPI_VERSION_RC}"
+    @ONLY)
+target_sources(${PROJECT_NAME} PRIVATE "${CLASSICAPI_VERSION_RC}")
+
+# ole32: COM (CoInitializeEx / CoCreateInstance / CoTaskMemFree) for the
+# SAPI text-to-speech backend in src/voicechat/Tts.cpp. The SAPI GUIDs are
+# instantiated in that TU via <initguid.h>, so no sapi.lib is needed.
+target_link_libraries(${PROJECT_NAME} PRIVATE minhook advapi32 ole32)
 
 target_include_directories(
   ${PROJECT_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src
+                          ${CMAKE_BINARY_DIR}/generated
                           external/minhook/include
                           external
                           external/tinycbor/src)

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
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+have designed this version of the GPL to prohibit the practice for those
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+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
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+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -18,38 +18,60 @@ Full per-function reference: **[docs/API.md](docs/API.md)**.
 | Namespace | Calls |
 |-----------|-------|
 | [Action](docs/API.md#action) | `GetActionInfo` |
-| [AddOns](docs/API.md#addons) | `C_AddOns.DoesAddOnExist`, `C_AddOns.GetAddOnName`, `C_AddOns.GetAddOnNotes`, `C_AddOns.GetAddOnSecurity`, `C_AddOns.GetAddOnTitle`, `C_AddOns.IsAddOnLoadable` |
+| [AddOns](docs/API.md#addons) | `C_AddOns.DoesAddOnExist`, `C_AddOns.GetAddOnName`, `C_AddOns.GetAddOnNotes`, `C_AddOns.GetAddOnOptionalDependencies`, `C_AddOns.GetAddOnSecurity`, `C_AddOns.GetAddOnTitle`, `C_AddOns.IsAddOnLoadable`, `C_AddOns.IsAddOnLoaded` |
+| [AuctionHouse](docs/API.md#auctionhouse) | `C_AuctionHouse.PostItem` |
 | [Chat](docs/API.md#chat) | `GetCurrentChatGUID` |
+| [ChatBubbles](docs/API.md#chatbubbles) | `C_ChatBubbles.GetAllChatBubbles` |
 | [Class](docs/API.md#class) | `FillLocalizedClassList` |
 | [Combat](docs/API.md#combat) | `InCombatLockdown` |
 | [CVar](docs/API.md#cvar) | `C_CVar.GetCVarBool` |
-| [Container](docs/API.md#container) | `C_Container.GetContainerItemDurability`, `C_Container.GetContainerItemID`, `C_Container.GetContainerItemRepairCost`, `C_Container.GetContainerNumFreeSlots`, `C_Container.GetItemCooldown`, `C_Container.MoveItem`, `C_Container.PlayerHasHearthstone`, `C_Container.SwapItems`, `C_Container.UseHearthstone`, `GetItemCooldown` |
+| [Cursor](docs/API.md#cursor) | `GetCursorInfo` |
+| [Container](docs/API.md#container) | `C_Container.CalculateTotalNumberOfFreeBagSlots`, `C_Container.GetContainerItemCharges`, `C_Container.GetContainerItemDurability`, `C_Container.GetContainerItemID`, `C_Container.GetContainerItemInfo`, `C_Container.GetContainerItemRepairCost`, `C_Container.GetContainerNumFreeSlots`, `C_Container.GetItemCooldown`, `C_Container.HasContainerItem`, `C_Container.IsContainerItemOpenable`, `C_Container.MoveItem`, `C_Container.PlayerHasHearthstone`, `C_Container.SwapItems`, `C_Container.UseHearthstone`, `GetItemCooldown` |
+| [Creature](docs/API.md#creature) | `C_CreatureInfo.GetCreatureID`, `C_CreatureInfo.GetCreatureInfoByID`, `C_CreatureInfo.RequestLoadCreatureByID`, `C_CreatureInfo.GetRaceInfo`, `C_CreatureInfo.GetClassInfo`, `C_CreatureInfo.GetCreatureFamilyInfo`, `C_CreatureInfo.GetCreatureFamilyIDs`, `C_CreatureInfo.GetFactionInfo`, `C_CreatureInfo.GetCreatureTypeInfo`, `C_CreatureInfo.GetCreatureTypeIDs` |
 | EncodingUtil | `C_EncodingUtil.CompressString`, `C_EncodingUtil.DecompressString`, `C_EncodingUtil.EncodeBase64`, `C_EncodingUtil.DecodeBase64`, `C_EncodingUtil.EncodeHex`, `C_EncodingUtil.DecodeHex`, `C_EncodingUtil.SerializeJSON`, `C_EncodingUtil.DeserializeJSON`, `C_EncodingUtil.SerializeCBOR`, `C_EncodingUtil.DeserializeCBOR` |
-| [EquipmentSet](docs/API.md#equipmentset) | `C_EquipmentSet.CanUseEquipmentSets`, `C_EquipmentSet.ClearIgnoredSlotsForSave`, `C_EquipmentSet.CreateEquipmentSet`, `C_EquipmentSet.DeleteEquipmentSet`, `C_EquipmentSet.EquipmentSetContainsLockedItems`, `C_EquipmentSet.GetEquipmentSetID`, `C_EquipmentSet.GetEquipmentSetIDs`, `C_EquipmentSet.GetEquipmentSetInfo`, `C_EquipmentSet.GetIgnoredSlots`, `C_EquipmentSet.GetItemIDs`, `C_EquipmentSet.GetItemLocations`, `C_EquipmentSet.GetNumEquipmentSets`, `C_EquipmentSet.IgnoreSlotForSave`, `C_EquipmentSet.IsSlotIgnoredForSave`, `C_EquipmentSet.ModifyEquipmentSet`, `C_EquipmentSet.SaveEquipmentSet`, `C_EquipmentSet.UnignoreSlotForSave`, `C_EquipmentSet.UseEquipmentSet` (sets persist to `WTF\Account\...\ClassicAPI_EquipmentSets.txt`) |
-| [Events](docs/API.md#events) | `C_EventUtils.IsEventValid` |
+| [EquipmentSet](docs/API.md#equipmentset) | `C_EquipmentSet.CanUseEquipmentSets`, `C_EquipmentSet.ClearIgnoredSlotsForSave`, `C_EquipmentSet.CreateEquipmentSet`, `C_EquipmentSet.DeleteEquipmentSet`, `C_EquipmentSet.EquipmentSetContainsLockedItems`, `C_EquipmentSet.GetEquipmentSetID`, `C_EquipmentSet.GetEquipmentSetIDs`, `C_EquipmentSet.GetEquipmentSetInfo`, `C_EquipmentSet.GetIgnoredSlots`, `C_EquipmentSet.GetItemIDs`, `C_EquipmentSet.GetItemLocations`, `C_EquipmentSet.GetNumEquipmentSets`, `C_EquipmentSet.IgnoreSlotForSave`, `C_EquipmentSet.IsSlotIgnoredForSave`, `C_EquipmentSet.ModifyEquipmentSet`, `C_EquipmentSet.SaveEquipmentSet`, `C_EquipmentSet.UnignoreSlotForSave`, `C_EquipmentSet.UseEquipmentSet` |
+| [Events](docs/API.md#events) | `C_EventUtils.IsEventValid`, `GetFramesRegisteredForEvent` |
 | [Expansion](docs/API.md#expansion) | `ClassicExpansionAtLeast`, `ClassicExpansionAtMost`, `GetClassicExpansionLevel` |
 | [Faction](docs/API.md#faction) | `C_Reputation.GetFactionDataByIndex`, `C_Reputation.GetFactionStandings`, `C_Reputation.GetLastStandingChange`, `C_Reputation.GetWatchedFactionData`, `C_Reputation.SetWatchedFactionByID`, `GetFactionIDByIndex`, `GetFactionInfoByID`, `GetFactionParentID` |
+| [Focus](docs/API.md#focus) | `ClearFocus`, `FocusUnit` |
+| [Frame](docs/API.md#frame) | `region:SetPoint("point")` (one-arg form), `region:SetSize`, `region:GetSize`, `frame:SetShown`, `frame:SetResizeBounds`, `frame:HookScript`, `frame:IsEventRegistered` |
 | [FriendList](docs/API.md#friendlist) | `C_FriendList.IsWhoQueryPending`, `C_FriendList.SendWhoQueryByName` |
+| [GameObject](docs/API.md#gameobject) | `C_GameObjectInfo.GetGameObjectInfoByID`, `C_GameObjectInfo.RequestLoadGameObjectByID`, `ClosestGameObjectPosition` |
 | [Gossip](docs/API.md#gossip) | `C_GossipInfo.CloseGossip`, `C_GossipInfo.GetActiveQuests`, `C_GossipInfo.GetAvailableQuests`, `C_GossipInfo.GetNumActiveQuests`, `C_GossipInfo.GetNumAvailableQuests`, `C_GossipInfo.GetNumOptions`, `C_GossipInfo.GetOptions`, `C_GossipInfo.GetText`, `C_GossipInfo.SelectActiveQuest`, `C_GossipInfo.SelectAvailableQuest`, `C_GossipInfo.SelectOption`, `C_GossipInfo.SelectOptionByIndex` |
-| [GameTooltip](docs/API.md#gametooltip) | `GameTooltip:GetGameObject`, `GameTooltip:GetItem`, `GameTooltip:GetOwner`, `GameTooltip:GetSpell`, `GameTooltip:GetUnitGUID`, `GameTooltip:HasGameObject`, `GameTooltip:HasItem`, `GameTooltip:HasSpell`, `GameTooltip:HasUnit`, `GameTooltip:SetEquipmentSet`, `GameTooltip:SetInventoryItemByID`, `GameTooltip:SetItemByID`, `GameTooltip:SetSpellByID`, `GameTooltip:SetTalentByID`, `GameTooltip:SetUnitAura` |
+| [GameTooltip](docs/API.md#gametooltip) | `GameTooltip:GetGameObject`, `GameTooltip:GetItem`, `GameTooltip:GetOwner`, `GameTooltip:GetSpell`, `GameTooltip:GetUnitGUID`, `GameTooltip:HasGameObject`, `GameTooltip:HasItem`, `GameTooltip:HasSpell`, `GameTooltip:HasUnit`, `GameTooltip:IsEquippedItem`, `GameTooltip:SetEquipmentSet`, `GameTooltip:SetHyperlinkCompareItem`, `GameTooltip:SetInventoryItemByID`, `GameTooltip:SetItemByGUID`, `GameTooltip:SetItemByID`, `GameTooltip:SetSpellByID`, `GameTooltip:SetTalentByID`, `GameTooltip:SetUnitAura`, `OnTooltipSetItem` (script) |
 | [Hooks](docs/API.md#hooks) | `hooksecurefunc` |
-| [Input](docs/API.md#input) | `IsLeftAltKeyDown`, `IsLeftControlKeyDown`, `IsLeftShiftKeyDown`, `IsModifierKeyDown`, `IsRightAltKeyDown`, `IsRightControlKeyDown`, `IsRightShiftKeyDown` |
+| [Input](docs/API.md#input) | `GetMouseButtonClicked`, `IsLeftAltKeyDown`, `IsLeftControlKeyDown`, `IsLeftShiftKeyDown`, `IsModifierKeyDown`, `IsMouseButtonDown`, `IsRightAltKeyDown`, `IsRightControlKeyDown`, `IsRightShiftKeyDown` |
 | [Instance](docs/API.md#instance) | `GetInstanceInfo` |
-| [Item](docs/API.md#item) | `C_Item.DoesItemExist`, `C_Item.DoesItemExistByID`, `C_Item.EquipItemByName`, `C_Item.GetCurrentItemLevel`, `C_Item.GetDetailedItemLevelInfo`, `C_Item.GetItemCount`, `C_Item.GetItemFamily`, `C_Item.GetItemGUID`, `C_Item.GetItemIcon`, `C_Item.GetItemIconByID`, `C_Item.GetItemID`, `C_Item.GetItemInfoInstant`, `C_Item.GetItemInventoryType`, `C_Item.GetItemInventoryTypeByID`, `C_Item.GetItemLink`, `C_Item.GetItemLocation`, `C_Item.GetItemMaxStackSize`, `C_Item.GetItemMaxStackSizeByID`, `C_Item.GetItemName`, `C_Item.GetItemNameByID`, `C_Item.GetItemQuality`, `C_Item.GetItemQualityByID`, `C_Item.GetItemSellPrice`, `C_Item.GetItemSellPriceByID`, `C_Item.GetItemSetID`, `C_Item.GetItemSetIDByID`, `C_Item.GetItemSetInfo`, `C_Item.GetItemSpell`, `C_Item.GetItemUniqueness`, `C_Item.GetItemUniquenessByID`, `C_Item.GetStackCount`, `C_Item.GetWeaponEnchantInfo`, `C_Item.IsBound`, `C_Item.IsEquippableItem`, `C_Item.IsEquippedItem`, `C_Item.IsItemDataCached`, `C_Item.IsItemDataCachedByID`, `C_Item.IsLocked`, `C_Item.LockItem`, `C_Item.LockItemByGUID`, `C_Item.UnlockAllItems`, `C_Item.UnlockItem`, `C_Item.RequestLoadItemData`, `C_Item.RequestLoadItemDataByID`, `C_Item.UseItemByName`, `GetAuctionItemID`, `GetAuctionSellItemID`, `GetAverageItemLevel`, `GetCraftReagentItemID`, `GetInboxItemID`, `GetInventoryItemDurability`, `GetInventoryItemID`, `GetInventoryItemsForSlot`, `GetInventoryItemRepairCost`, `GetItemIcon`, `GetLootRollItemID`, `GetLootSlotItemID`, `GetMerchantItemID`, `GetQuestItemID`, `GetQuestLogItemID`, `GetTradePlayerItemID`, `GetTradeSkillItemID`, `GetTradeSkillReagentItemID`, `GetTradeTargetItemID`, `OffhandHasWeapon` |
-| [Macros](docs/API.md#macros) | `GetMacroSpell` |
-| [Map](docs/API.md#map) | `C_Map.GetBestMapForUnit` |
+| [Item](docs/API.md#item) | `C_Item.DoesItemExist`, `C_Item.DoesItemExistByID`, `C_Item.EquipItemByName`, `C_Item.GetCurrentItemLevel`, `C_Item.GetDetailedItemLevelInfo`, `C_Item.GetEnchantInfo`, `C_Item.GetItemCount`, `C_Item.GetItemFamily`, `C_Item.GetItemGUID`, `C_Item.GetItemIcon`, `C_Item.GetItemIconByID`, `C_Item.GetItemID`, `C_Item.GetItemInfo`, `C_Item.GetItemInfoInstant`, `C_Item.GetItemInventorySlotInfo`, `C_Item.GetItemInventorySlotKey`, `C_Item.GetItemInventoryType`, `C_Item.GetItemInventoryTypeByID`, `C_Item.GetItemLink`, `C_Item.GetItemLocation`, `C_Item.GetItemMaxStackSize`, `C_Item.GetItemMaxStackSizeByID`, `C_Item.GetItemName`, `C_Item.GetItemNameByID`, `C_Item.GetItemQuality`, `C_Item.GetItemQualityByID`, `C_Item.GetItemSellPrice`, `C_Item.GetItemSellPriceByID`, `C_Item.GetItemSetID`, `C_Item.GetItemSetIDByID`, `C_Item.GetItemSetInfo`, `C_Item.GetItemSpell`, `C_Item.GetItemStatDelta`, `C_Item.GetItemStats`, `C_Item.GetItemClassInfo`, `C_Item.GetItemSubClassInfo`, `C_Item.GetItemUniqueness`, `C_Item.GetItemUniquenessByID`, `C_Item.GetStackCount`, `C_Item.GetWeaponEnchantInfo`, `C_Item.IsBound`, `C_Item.IsConsumableItem`, `C_Item.IsEquippableItem`, `C_Item.IsEquippedItem`, `C_Item.IsItemDataCached`, `C_Item.IsItemDataCachedByID`, `C_Item.IsItemGUIDInInventory`, `C_Item.IsItemInRange`, `C_Item.IsItemOpenable`, `C_Item.IsLocked`, `C_Item.LockItem`, `C_Item.LockItemByGUID`, `C_Item.PickupItem`, `C_Item.UnlockAllItems`, `C_Item.UnlockItem`, `C_Item.RequestLoadItemData`, `C_Item.RequestLoadItemDataByID`, `C_Item.UseAtCursor`, `C_Item.UseAtUnit`, `C_Item.UseItemByName`, `GetAuctionItemID`, `GetAuctionSellItemID`, `GetAverageItemLevel`, `GetCraftReagentItemID`, `GetInboxItemID`, `GetInventoryItemDurability`, `GetInventoryItemID`, `GetInventoryItemsForSlot`, `GetInventoryItemRepairCost`, `GetItemClassInfo`, `GetItemIcon`, `GetItemSubClassInfo`, `GetLootRollItemID`, `GetLootSlotItemID`, `GetMerchantItemID`, `GetQuestItemID`, `GetQuestLogItemID`, `GetTradePlayerItemID`, `GetTradeSkillItemID`, `GetTradeSkillReagentItemID`, `GetTradeTargetItemID`, `OffhandHasWeapon` |
+| [Loot](docs/API.md#loot) | `C_Loot.GetNearbyLootableUnits`, `C_Loot.GetLastScanResults`, `C_Loot.IsScanInProgress`, `C_Loot.LootUnit`, `C_Loot.LootUnitItem`, `C_Loot.ScanNearbyLoot` |
+| [LootHistory](docs/API.md#loothistory) | `C_LootHistory.GetNumItems`, `C_LootHistory.GetItem`, `C_LootHistory.GetPlayerInfo`, `C_LootHistory.Clear` |
+| [LossOfControl](docs/API.md#lossofcontrol) | `C_LossOfControl.GetActiveLossOfControlData`, `C_LossOfControl.GetActiveLossOfControlDataCount` |
+| [Lua](docs/API.md#lua) | `coroutine.create`, `coroutine.resume`, `coroutine.status`, `coroutine.wrap`, `coroutine.yield`, `math.fmod`, `math.huge`, `math.modf`, `select`, `string.gmatch`, `string.match`, `string.reverse`, `strjoin`, `strreplace`, `strrev`, `strsplit`, `strtrim`, `table.wipe` |
+| [Macros](docs/API.md#macros) | `GetLooseMacroIcons`, `GetLooseMacroItemIcons`, `GetMacroIcons`, `GetMacroItemIcons`, `GetMacroSpell` |
+| [Mail](docs/API.md#mail) | `GetInboxItemLink`, `GetSendMailItemLink` |
+| [Map](docs/API.md#map) | `C_Map.GetAreaInfo`, `C_Map.GetAreas`, `C_Map.GetAreaTriggerInfo`, `C_Map.GetAreaTriggers`, `C_Map.GetBestMapForUnit`, `C_Map.GetMapAreaIDs`, `C_Map.GetMapOverlays`, `C_Map.GetMapWorldSize` |
+| [MapExplorationInfo](docs/API.md#mapexplorationinfo) | `C_MapExplorationInfo.GetExploredMapTextures`, `C_MapExplorationInfo.GetUnexploredMapTextures` |
 | [MerchantFrame](docs/API.md#merchantframe) | `C_MerchantFrame.GetBuybackItemID`, `C_MerchantFrame.GetItemInfo`, `C_MerchantFrame.GetNumJunkItems`, `C_MerchantFrame.IsMerchantItemRefundable`, `C_MerchantFrame.IsSellAllJunkEnabled`, `C_MerchantFrame.SellAllJunkItems` |
-| [NameCache](docs/API.md#namecache) | `C_CreatureInfo.GetCreatureID`, `C_PlayerCache.GetPlayerInfoByName`, `C_PlayerCache.IsEnabled`, `C_PlayerCache.IsScanEnabled`, `C_PlayerCache.RememberPlayer`, `C_PlayerCache.SetEnabled`, `C_PlayerCache.SetScanEnabled`, `C_PlayerInfo.GUIDIsCreature`, `C_PlayerInfo.GUIDIsGameObject`, `C_PlayerInfo.GUIDIsPet`, `C_PlayerInfo.GUIDIsPlayer`, `GetPlayerInfoByGUID` |
-| [Quest](docs/API.md#quest) | `C_QuestLog.GetQuestIDForLogIndex`, `C_QuestLog.GetTitleForQuestID`, `C_QuestLog.IsOnQuest`, `C_QuestLog.IsQuestDataCachedByID`, `C_QuestLog.IsUnitOnQuest`, `C_QuestLog.RequestLoadQuestByID`, `GetQuestLogLeaderBoardID` |
-| [Spell](docs/API.md#spell) | `C_Spell.CancelSpellByID`, `C_Spell.DoesSpellExist`, `C_Spell.GetSchoolString`, `C_Spell.GetSpellCooldown`, `C_Spell.GetSpellDescription`, `C_Spell.GetSpellInfo`, `C_Spell.GetSpellLink`, `C_Spell.GetSpellName`, `C_Spell.GetSpellReagents`, `C_Spell.GetSpellSubtext`, `C_Spell.GetSpellTexture`, `C_Spell.IsAutoAttackSpell`, `C_Spell.IsCurrentSpell`, `C_Spell.IsRangedAutoAttackSpell`, `C_Spell.IsSelfBuff`, `C_Spell.IsSpellHarmful`, `C_Spell.IsSpellHelpful`, `C_Spell.IsSpellPassive`, `C_Spell.IsSpellUsable`, `C_Spell.SpellHasRange`, `CancelSpellByName`, `CastSpellNoToggle`, `GetCraftSpellID`, `GetSpellInfo`, `GetSpellLink`, `GetSpellSchool`, `IsHarmfulSpell`, `IsHelpfulSpell`, `IsPassiveSpell`, `IsPlayerSpell`, `IsSpellKnown`, `IsUsableSpell`, `SpellHasRange` |
-| [SpellBook](docs/API.md#spellbook) | `C_SpellBook.GetCurrentLevelSpells`, `C_SpellBook.GetSpellLevelLearned`, `C_SpellBook.GetSpellSkillLine`, `C_SpellBook.IsAutoAttackSpellBookItem`, `C_SpellBook.IsRangedAutoAttackSpellBookItem`, `FindSpellBookSlotByID` |
-| [State](docs/API.md#state) | `CancelShapeshiftForm`, `Dismount`, `GetMirrorTimerInfo`, `GetMirrorTimerProgress`, `GetShapeshiftFormID`, `IsAssistingRitual`, `IsFalling`, `IsInGroup`, `IsInRaid`, `IsMounted`, `IsStealthed`, `IsSwimming` |
-| [Table](docs/API.md#table) | `table.wipe` |
+| [NamePlate](docs/API.md#nameplate) | `C_NamePlate.GetNamePlateForGUID`, `C_NamePlate.GetNamePlateForUnit`, `C_NamePlate.GetNamePlateGUIDs`, `C_NamePlate.GetNamePlates` |
+| [NameCache](docs/API.md#namecache) | `C_PlayerCache.GetPlayerInfoByName`, `C_PlayerCache.IsEnabled`, `C_PlayerCache.IsScanEnabled`, `C_PlayerCache.RememberPlayer`, `C_PlayerCache.SetEnabled`, `C_PlayerCache.SetScanEnabled`, `GetPlayerInfoByGUID`, `UnitNameFromGUID` |
+| [NewItems](docs/API.md#newitems) | `C_NewItems.ClearAll`, `C_NewItems.IsNewItem`, `C_NewItems.RemoveNewItem` |
+| [PlayerInfo](docs/API.md#playerinfo) | `C_PlayerInfo.CanUseItem`, `C_PlayerInfo.GetClass`, `C_PlayerInfo.GetName`, `C_PlayerInfo.GetRace`, `C_PlayerInfo.GetSex`, `C_PlayerInfo.GUIDIsCreature`, `C_PlayerInfo.GUIDIsGameObject`, `C_PlayerInfo.GUIDIsPet`, `C_PlayerInfo.GUIDIsPlayer`, `C_PlayerInfo.IsConnected` |
+| [Quest](docs/API.md#quest) | `C_QuestLog.GetNumQuestObjectives`, `C_QuestLog.GetQuestDetails`, `C_QuestLog.GetHeaderIndexForQuest`, `C_QuestLog.GetLogIndexForQuestID`, `C_QuestLog.GetQuestIDForLogIndex`, `C_QuestLog.GetTitleForQuestID`, `C_QuestLog.IsOnQuest`, `C_QuestLog.IsQuestDataCachedByID`, `C_QuestLog.IsUnitOnQuest`, `C_QuestLog.RequestLoadQuestByID`, `GetQuestLogLeaderBoardID` |
+| [Screen](docs/API.md#screen) | `GetPhysicalScreenSize` |
+| [Spell](docs/API.md#spell) | `C_Spell.CancelSpellByID`, `C_Spell.CastAtCursor`, `C_Spell.CastAtUnit`, `C_Spell.CastingInfo`, `C_Spell.ChannelInfo`, `C_Spell.DoesSpellExist`, `C_Spell.GetSchoolString`, `C_Spell.GetSpellCooldown`, `C_Spell.GetSpellDescription`, `C_Spell.GetSpellInfo`, `C_Spell.GetSpellLevelInfo`, `C_Spell.GetSpellLink`, `C_Spell.GetSpellMechanicByID`, `C_Spell.GetSpellName`, `C_Spell.GetSpellPowerCost`, `C_Spell.GetSpellRadius`, `C_Spell.GetSpellReagents`, `C_Spell.GetSpellRequiredTargetLevel`, `C_Spell.GetSpellSubtext`, `C_Spell.GetSpellTexture`, `C_Spell.IsAutoAttackSpell`, `C_Spell.IsCurrentSpell`, `C_Spell.IsRangedAutoAttackSpell`, `C_Spell.IsSelfBuff`, `C_Spell.IsSpellHarmful`, `C_Spell.IsSpellHelpful`, `C_Spell.IsSpellInRange`, `C_Spell.IsSpellPassive`, `C_Spell.IsSpellUsable`, `C_Spell.SpellHasRange`, `C_Spell.UnitCastingInfo`, `C_Spell.UnitChannelInfo`, `CancelSpellByName`, `CastSpellNoToggle`, `GetCraftSpellID`, `GetSpellBonusDamage`, `GetSpellBonusHealing`, `GetSpellInfo`, `GetSpellLink`, `GetSpellRadius`, `GetSpellRequiredTargetLevel`, `GetSpellSchool`, `IsHarmfulSpell`, `IsHelpfulSpell`, `IsPassiveSpell`, `IsPlayerSpell`, `IsSpellKnown`, `IsUsableSpell`, `SpellHasRange` |
+| [SpellBook](docs/API.md#spellbook) | `C_SpellBook.GetCurrentLevelSpells`, `C_SpellBook.GetSkillLineName`, `C_SpellBook.GetSkillLineRank`, `C_SpellBook.GetSpellLevelLearned`, `C_SpellBook.GetSpellSkillLine`, `C_SpellBook.IsAutoAttackSpellBookItem`, `C_SpellBook.IsRangedAutoAttackSpellBookItem`, `FindSpellBookSlotByID` |
+| [State](docs/API.md#state) | `CancelShapeshiftForm`, `Dismount`, `GetMirrorTimerInfo`, `GetMirrorTimerProgress`, `GetShapeshiftFormID`, `IsAssistingRitual`, `IsFalling`, `IsInGroup`, `IsInRaid`, `IsLoggedIn`, `IsMounted`, `IsStealthed`, `IsSwimming` |
 | [Talent](docs/API.md#talent) | `GetTalentIDByIndex`, `GetTalentSpellID` |
+| [Targeting](docs/API.md#targeting) | `GetPlayerFacing`, `TargetDirectionEnemy`, `TargetDirectionFriend`, `TargetNearest`, `TargetNearestEnemyPlayer`, `TargetNearestFriendPlayer` |
+| [TaxiMap](docs/API.md#taximap) | `C_TaxiMap.GetTaxiNodesForMap`, `C_TaxiMap.GetAllTaxiNodes` |
 | [Time](docs/API.md#time) | `C_DateAndTime.AdjustTimeByDays`, `C_DateAndTime.AdjustTimeByMinutes`, `C_DateAndTime.CompareCalendarTime`, `C_DateAndTime.GetCalendarTimeFromEpoch`, `C_DateAndTime.GetCurrentCalendarTime`, `C_DateAndTime.GetSecondsUntilDailyReset`, `C_DateAndTime.GetServerTimeLocal`, `C_Timer.After`, `C_Timer.NewTicker`, `C_Timer.NewTimer`, `GetServerTime` |
-| [UIColor](docs/API.md#uicolor) | `C_UIColor.GetColors` (backports `GlobalColor.dbc`; companion addon wraps each row with `ColorMixin` and assigns `_G[baseTag]` + `_G[baseTag.."_CODE"]`) |
-| [Unit](docs/API.md#unit) | `GetUnitSpeed`, `UnitClassBase`, `UnitGUID`, `UnitInRange`, `UnitIsAFK`, `UnitIsDND`, `UnitIsFeignDeath`, `UnitIsInMyGuild`, `UnitIsPossessed`, `UnitPower`, `UnitPowerMax`, `UnitPowerType`, `UnitRaceBase`, `UnitStandState`, `UnitTokenFromGUID` |
-| [UnitAuras](docs/API.md#unitauras) | `C_UnitAuras.GetAuraDataByIndex`, `C_UnitAuras.GetAuraDataBySpellName`, `C_UnitAuras.GetAuraDispelTypeColor`, `C_UnitAuras.GetBuffDataByIndex`, `C_UnitAuras.GetDebuffDataByIndex`, `C_UnitAuras.GetPlayerAuraBySpellID`, `C_UnitAuras.GetUnitAuraBySpellID`, `C_UnitAuras.GetUnitAuras` |
+| [Totem](docs/API.md#totem) | `GetTotemInfo`, `GetTotemTimeLeft`, `GetTotemDuration`, `TargetTotem` |
+| [TradeSkillUI](docs/API.md#tradeskillui) | `C_TradeSkillUI.GetTradeSkillListLink`, `C_TradeSkillUI.GetCraftListLink`, `C_TradeSkillUI.GetTradeSkillListRecipes` |
+| [UIColor](docs/API.md#uicolor) | `C_UIColor.GetColors` |
+| [Unit](docs/API.md#unit) | `ClosestUnitPosition`, `GetUnitSpeed`, `UnitClassBase`, `UnitCreatureFamilyID`, `UnitCreatureTypeID`, `UnitDistanceSquared`, `UnitGUID`, `UnitInLineOfSight`, `UnitInRange`, `UnitIsAFK`, `UnitIsDND`, `UnitIsFeignDeath`, `UnitIsInMyGuild`, `UnitIsMinion`, `UnitIsOtherPlayersPet`, `UnitIsPet`, `UnitIsPossessed`, `UnitOwnerGUID`, `UnitPower`, `UnitPowerMax`, `UnitPowerType`, `UnitRaceBase`, `UnitStandState`, `UnitSubName`, `UnitTokenFromGUID` |
+| [UnitAuras](docs/API.md#unitauras) | `C_UnitAuras.GetAuraDataByIndex`, `C_UnitAuras.GetAuraDataBySpellName`, `C_UnitAuras.GetAuraDispelTypeColor`, `C_UnitAuras.GetBuffDataByIndex`, `C_UnitAuras.GetDebuffDataByIndex`, `C_UnitAuras.GetPlayerAuraBySpellID`, `C_UnitAuras.GetUnitAuraBySpellID`, `C_UnitAuras.GetUnitAuras`, `C_UnitAuras.RegisterComboDuration` |
+| [VoiceChat](docs/API.md#voicechat) | `C_VoiceChat.GetTtsVoices`, `C_VoiceChat.GetRemoteTtsVoices`, `C_VoiceChat.SpeakText`, `C_VoiceChat.StopSpeakingText`, `C_TTSSettings.GetSpeechRate`, `C_TTSSettings.GetSpeechVolume`, `C_TTSSettings.GetSpeechVoiceID`, `C_TTSSettings.GetVoiceOptionName`, `C_TTSSettings.SetSpeechRate`, `C_TTSSettings.SetSpeechVolume`, `C_TTSSettings.SetVoiceOption`, `C_TTSSettings.SetVoiceOptionByName`, `C_TTSSettings.SetDefaultSettings`, `C_TTSSettings.RefreshVoices` |
+| [XMLUtil](docs/API.md#xmlutil) | `C_XMLUtil.DoesTemplateExist`, `C_XMLUtil.GetTemplateInfo`, `C_XMLUtil.GetTemplates` |
 
 ### GlueXML calls
 
@@ -64,9 +86,11 @@ the glue state because GlueXML had no way to reach them otherwise.
 
 | Group | Calls |
 |-------|-------|
-| CharacterOrder | `GetSavedCharacterOrder`, `SetSavedCharacterOrder` (persist to `WTF\Account\...\ClassicAPI.txt`) |
+| [Account](docs/API.md#account) | `SaveAccount`, `DeleteAccount`, `GetSavedAccounts`, `LoginWithSavedAccount` (passwords encrypted in Windows Credential Manager, scoped per realmlist; plaintext never returned to Lua) |
+| [CharacterList](docs/API.md#characterlist) | `GetSavedCharacterOrder`, `SetSavedCharacterOrder` (persist to `WTF\Account\...\ClassicAPI.txt`) |
 | CVar | `GetCVar`, `SetCVar`, `RegisterCVar`, `GetCVarDefault`, `C_CVar.GetCVarBool` (storage is process-global — writes from glue are visible in-world and vice versa) |
 | Script | `RunScript` (compile and run a Lua chunk in the glue state's globals — useful for slash-command-style helpers in GlueXML) |
+| State | `IsLoggedIn` |
 
 ### Macros
 
@@ -80,10 +104,23 @@ functions, just behavior the stock 1.12 engine didn't have. See the
 | `CastSpellByName("<spellID>")` | Same — numeric strings resolve through the engine's name resolver |
 | `CastSpellNoToggle("<name>")` in a macro | Engine's macro parser now recognizes it as a primary-spell line, so the macro slot in an addon like pfUI highlights when its spell is auto-repeating or its self-aura is active |
 
+### Console commands
+
+Registered on the engine's developer console (the `~` console available
+when launching with `-console`), not as Lua functions. See the
+[Console section in the Lua reference](docs/API.md#console) for details.
+
+| Command | What it does |
+|---------|--------------|
+| `ExportInterfaceFiles code` | Extracts Blizzard's UI source (`.lua`/`.xml`/`.toc`/`.xsd`) from the MPQs to `BlizzardInterfaceCode\` |
+| `ExportInterfaceFiles art` | Extracts Blizzard's UI art (`.blp`/`.tga`) from the MPQs to `BlizzardInterfaceArt\` |
+| `ExportDBCFiles` | Extracts the client's `.dbc` tables from the MPQs to `DBFilesClient\` |
+
 ### Events
 
 | Event | Payload |
 |-------|---------|
+| `BAG_NEW_ITEMS_UPDATED` | *(none)* |
 | `BAG_UPDATE_DELAYED` | *(none)* |
 | `EQUIPMENT_SETS_CHANGED` | *(none)* |
 | `EQUIPMENT_SWAP_PENDING` | `setID` |
@@ -93,17 +130,34 @@ functions, just behavior the stock 1.12 engine didn't have. See the
 | `GLOBAL_MOUSE_UP` | `button` |
 | `HEARTHSTONE_BOUND` | *(none)* |
 | `ITEM_DATA_LOAD_RESULT` | `itemID, success` |
+| `LOOT_HISTORY_ROLL_CHANGED` | `itemIndex, playerIndex` |
+| `LOOT_HISTORY_ROLL_COMPLETE` | `itemIndex` |
+| `LOOT_SCAN_COMPLETED` | *(none)* |
+| `LOSS_OF_CONTROL_ADDED` | `eventIndex` |
+| `LOSS_OF_CONTROL_UPDATE` | `unitToken` (always `"player"`) |
 | `MODIFIER_STATE_CHANGED` | `keyName, down` |
+| `NAME_PLATE_CREATED` | `nameplateFrame` |
+| `NAME_PLATE_UNIT_ADDED` | `unitToken` ("nameplateN") |
+| `NAME_PLATE_UNIT_REMOVED` | `unitToken` ("nameplateN") |
+| `PLAYER_EQUIPMENT_CHANGED` | `equipmentSlot, hasCurrent` |
+| `PLAYER_FOCUS_CHANGED` | *(none)* |
 | `PLAYER_STARTED_LOOKING` | *(none)* |
 | `PLAYER_STOPPED_LOOKING` | *(none)* |
 | `PLAYER_STARTED_MOVING` | *(none)* |
 | `PLAYER_STOPPED_MOVING` | *(none)* |
 | `PLAYER_STARTED_TURNING` | *(none)* |
 | `PLAYER_STOPPED_TURNING` | *(none)* |
+| `PLAYER_TOTEM_UPDATE` | `totemSlot` |
 | `QUEST_ACCEPTED` | `questLogIndex, questID` |
 | `QUEST_DATA_LOAD_RESULT` | `questID, success` |
+| `QUEST_REMOVED` | `questID` |
 | `QUEST_TURNED_IN` | `questID, xpReward, moneyReward` |
+| `UPDATE_INVENTORY_DURABILITY` | *(none)* |
 | `UPDATE_SHAPESHIFT_FORM` | *(none)* |
+| `VOICE_CHAT_TTS_PLAYBACK_STARTED` | `numConsumers, utteranceID, durationMS, destination` |
+| `VOICE_CHAT_TTS_PLAYBACK_FINISHED` | `numConsumers, utteranceID, destination` |
+| `VOICE_CHAT_TTS_PLAYBACK_FAILED` | `status, utteranceID, destination` |
+| `VOICE_CHAT_TTS_VOICES_UPDATE` | *(none)* |
 
 ### Globals
 
@@ -115,17 +169,53 @@ functions, just behavior the stock 1.12 engine didn't have. See the
 | Unit stat | `LE_UNIT_STAT_STRENGTH` … `LE_UNIT_STAT_SPIRIT` |
 | Addon security | `Enum.AddOnSecurityStatus.{Secure,Insecure,Banned,NotAvailable}` |
 | Power type | `Enum.PowerType.{HealthCost,None,Mana,Rage,Focus,Energy,Happiness}` |
+| Inventory type | `Enum.InventoryType.Index*Type` (0–34, e.g. `IndexHeadType`=1 … `IndexRelicType`=28) |
+| Item class | `Enum.ItemClass.{Consumable,Container,Weapon,Gem,Armor,Reagent,Projectile,Tradegoods,ItemEnhancement,Recipe,Quiver,Questitem,Key,Miscellaneous,…}` (0–19) |
+| Item quality | `Enum.ItemQuality.{Poor,Common,Uncommon,Rare,Epic,Legendary,Artifact}` (0–6) |
+
+### Unit tokens
+
+| Token | Resolves to |
+|-------|-------------|
+| `nameplate1`..`nameplateN` | Unit behind the Nth visible nameplate, in creation-order. Works with every `UnitX` function — `UnitName`, `UnitGUID`, `UnitClass`, `UnitHealth`, etc. Suffix chains (`nameplate1target`, `nameplate1targettarget`) compose. See [NamePlate / Unit tokens](docs/API.md#unit-tokens-nameplaten). |
+| `focus` / `focustarget` | Sticky target set via [`FocusUnit`](docs/API.md#focusunitunit), cleared via [`ClearFocus`](docs/API.md#clearfocus). Same `UnitX` coverage as `nameplateN`. Fires [`PLAYER_FOCUS_CHANGED`](docs/API.md#player_focus_changed-event) on transition. See [Focus](docs/API.md#focus). |
+
+### Bindings
+
+Injected into the engine's **Targeting Functions** group at FrameXML
+Bindings.xml load time, so they appear in the keybind UI alongside
+native targeting bindings instead of orphaned at the bottom.
+
+| Binding | Action |
+|---------|--------|
+| `FOCUSTARGET` | `FocusUnit("target")` — pin current target as focus |
+| `TARGETFOCUS` | `TargetUnit("focus")` — switch target to the focus |
+
+See [Focus / Bindings](docs/API.md#bindings-focustarget--targetfocus) for the implementation note.
+
+### Behaviors
+
+Transparent engine tweaks — no API to call, they just fix a vanilla limitation:
+
+| Tweak | Effect |
+|-------|--------|
+| Tooltip line cap | Lifts `GameTooltip`'s hard 30-line limit to 60 for every `GameTooltipTemplate` frame (`GameTooltip`, `ShoppingTooltip1/2`, `ItemRefTooltip`, AtlasLoot, …). Stat-heavy tooltips and comparison blocks (e.g. pfUI's eqcompare) no longer have their extra lines silently dropped. Done in pure C++ by growing the engine's FontString pool at tooltip-creation time. |
 
 ## Installation
 
-Use [VanillaFixes](https://github.com/hannesmann/vanillafixes) to load the
-DLL.
+Download the prebuilt `ClassicAPI.dll` from the
+[latest release](https://github.com/brues-code/ClassicAPI/releases/latest)
+(or [build it yourself](#building)). It's loaded with
+[VanillaFixes](https://github.com/hannesmann/vanillafixes):
 
 1. Install VanillaFixes if it isn't already.
 2. Copy `ClassicAPI.dll` into your game directory.
 3. Add `ClassicAPI.dll` to `dlls.txt`.
 4. Launch the game with `VanillaFixes.exe`.
 
+The bundled `!!!ClassicAPI` addon ships *inside* the DLL — no separate
+addon download or install step needed.
+
 ## Bundled addon: !!!ClassicAPI
 
 The Lua-side companion library lives in
@@ -149,8 +239,19 @@ The triple-`!` prefix is **load-order-significant** — WoW loads
 addons alphabetically, so `!!!ClassicAPI` is guaranteed to run before
 any consumer that depends on its globals. Don't rename the folder.
 
-To install: copy [`AddOns/!!!ClassicAPI/`](AddOns/!!!ClassicAPI/) into
-your `Interface/AddOns/` directory.
+**You don't have to install the addon manually** — the DLL embeds
+the contents of [`AddOns/!!!ClassicAPI/`](AddOns/!!!ClassicAPI/) and
+registers them with the engine as a synthetic addon on startup, so
+the library is always available when the DLL is loaded. The engine
+sees it as a normal addon: it appears in `GetAddOnInfo`, fires
+`ADDON_LOADED`, supports `SavedVariables`, the works.
+
+If you do drop the folder into your `Interface/AddOns/` directory,
+**that copy wins** — the DLL's embedded version is only registered
+when the engine's normal scan doesn't already have an entry under
+that name. Useful for editing the Lua locally without rebuilding the
+DLL. The dispatch is transparent: addons consuming `Mixin`,
+`ColorMixin`, `TableUtil`, etc. behave identically in both cases.
 
 ## Bundled addon: DebugTools
 
@@ -201,4 +302,4 @@ at configure time; the value exposed to Lua will be `X*10000 + Y*100 + Z`.
 
 ## License
 
-LGPL v3 or later. See the headers in `src/` for the full notice.
+GPL v3 or later. See the headers in `src/` for the full notice.

TODO.md

@@ -782,24 +782,28 @@ The probe helpers (`_classicapi_ProbeSpellRecord`,
 `_classicapi_FindSpellField`) were temporarily exposed to derive the
 offset and removed in the same commit that shipped `GetSpellSchool`.
 
-## 38. `GetSpellRadius(spellID)` — easy
+## ~~38. `GetSpellRadius(spellID)`~~ — DONE
 
-Returns the AOE radius in yards, or `nil` for non-AOE spells.
-`Spell.dbc` has a `SpellRadiusIndex` field that points into
-`SpellRadius.dbc` (instance at `0x00C0D7A8` per `docs/DBCs.md`,
-already wired up via `VAR_SPELL_RANGE_RECORDS`-style helpers in
-`src/spell/Info.cpp`).
+Shipped in [src/spell/Radius.cpp](src/spell/Radius.cpp) as
+`C_Spell.GetSpellRadius(spellID)` plus the vanilla-positional
+`GetSpellRadius(slot, bookType)`. Returns `(baseRadius, modifiedRadius)`,
+or `nil` for non-AOE spells. `modifiedRadius` applies the local player's
+talent/item radius mods (e.g. Arctic Reach) via the shared `Spell::Mod`
+helper — verified in-game: Frost Nova (10230) → `10, 10` without Arctic
+Reach, `10, 12` with rank 2 (+20%).
 
-Stride and field layout for `SpellRadius.dbc`: needs derivation
-(should be `{id, radius_min, radius, radius_max}` per the public
-schema, but verify). Sub-DBC lookup pattern matches what
-`LookupSubRecord` already does in `Info.cpp` for icon / cast time /
-range.
+The radius is **per-effect**, not a single spell-level field: `Spell.dbc`
+has `EffectRadiusIndex[3]` at record `+0x160` (verified by decompiling
+`FUN_006e6350`, which reads `spellRec[+0x160]`/`[+0x164]` for effects
+0/1). Each non-zero index resolves into `SpellRadius.dbc` (records
+`0x00C0D7B0`, count `0x00C0D7B4`), record shape
+`{ id@+0, radius@+4 (f32), radiusPerLevel@+8 (f32), ... }`. We return the
+largest base radius across the three effects. Base radius only — the
+engine adds `radiusPerLevel * casterLevel`, but that needs a unit context
+and modern `GetSpellRadius` reports the base value.
 
-Useful for AOE damage trackers, ground-effect addons, and any aura
-library that wants to render an indicator radius. Modern WoW exposes
-this via `GetSpellRadius` (deprecated) or returns from
-`C_Spell.GetSpellInfo`.
+See `OFF_SPELL_RECORD_EFFECT_RADIUS_INDEX`, `VAR_SPELL_RADIUS_RECORDS`,
+`OFF_SPELL_RADIUS_VALUE` in [src/Offsets.h](src/Offsets.h).
 
 ## ~~39. `GetFactionParentID(factionID)`~~ — DONE
 
@@ -2309,45 +2313,55 @@ that want this behavior on Octo-style multi-DLL clients can
 fall back to debouncing `BAG_UPDATE` themselves via an
 `OnUpdate` timer.
 
-## 68. `UnitChannelInfo(unit)` / `UnitCastingInfo(unit)` — medium
+## ~~68. `UnitChannelInfo(unit)` / `UnitCastingInfo(unit)`~~ — DONE
 
-Modern signatures return `(name, _, texture, startMs, endMs, _, _,
-spellID)` for the unit's currently channeled / cast spell. 1.12
-exposes nothing equivalent — the closest is `SPELLCAST_CHANNEL_*`
-events, which only fire for the local player and don't carry
-spellID payloads.
+Shipped in [src/spell/Cast.cpp](src/spell/Cast.cpp): `UnitCastingInfo`,
+`CastingInfo`, `UnitChannelInfo`, `ChannelInfo`. Verified in-game —
+Blizzard channel `(…, 907894314, 907902314, …, 10187)` (8s), Conjure Food
+cast `(…, 907928268, 907931268, …, 28612)` (3s), `GetTime()*1000` falls
+between start/end.
 
-The data is sitting in the broadcast descriptor:
+**The start/end-time hunt resolved with a firm negative**, confirmed via
+the cross-binary technique. 3.3.5's `Script_UnitCastingInfo`
+(`0x00611DF0`) / `Script_UnitChannelInfo` (`0x00612090`) read cast times
+from **per-unit CGUnit fields** (cast `+0xa6c/+0xa78/+0xa7c`, channel
+`+0xa80/+0xa84/+0xa88`) — TBC/WotLK additions that don't exist in the
+1.12 CGUnit (the tell: 1.12's *player* cast spellID is a global,
+`VAR_CURRENT_CAST_SPELL`, not a unit field). 1.12 stores no cast times
+anywhere readable; the cast bar is Lua-driven off `SPELLCAST_START`, and
+remote units' casts are transient spell-visual objects
+(`FUN_0060d7c0`), not a queryable record. The cast-timer globals at
+`0x00cee8d4..e4` are a shared visual-system slot (written for *any*
+channeling unit via `FUN_00612a30 → FUN_0060d7c0`), so they're not
+player-safe.
 
-- `UNIT_FIELD_CHANNEL_SPELL` at descriptor `+0x228` (already in
-  `Offsets.h` as `OFF_UNIT_FIELD_CHANNEL_SPELL`). Verified via the
-  warlock/clicker/fishing diffs in the `IsAssistingRitual` session
-  — non-zero = currently channeling that spell.
-- `UNIT_FIELD_CHANNEL_OBJECT` at descriptor `+0x38/+0x3C`
-  (`OFF_UNIT_FIELD_CHANNEL_OBJECT`). 64-bit GUID of the channel
-  target — bobber for fishing, lock for lockpicking, etc. Zero for
-  channels that don't bind to a GameObject (warlock spells, Ritual
-  of Summoning).
+So timing is **self-tracked for the local player** on `WorldTick`:
+- cast: `VAR_CURRENT_CAST_SPELL` 0→nonzero → `startMs = FUN_OS_TICKCOUNT_MS`,
+  `endMs = start + SpellCastTimes base ms`. Instant casts (cast time 0)
+  and channels are filtered out of the cast path.
+- channel: player's broadcast `UNIT_FIELD_CHANNEL_SPELL` (`+0x228`),
+  `endMs = start + SpellDuration base ms`.
 
-That gives us spellID immediately, and `name` + `texture` via the
-existing `GetSpellInfo(spellID)` chain. Worth shipping a partial
-function that omits the `startMs`/`endMs` returns and let callers
-do their own duration estimation off `SPELLCAST_CHANNEL_START` —
-or hunt for the per-unit cast-time fields the engine uses for the
-local castbar.
+`FUN_OS_TICKCOUNT_MS` shares `GetTime()`'s epoch (×0.001), so the ms
+values feed addon progress math directly. Other units: channel
+spellID/name/texture from the broadcast `+0x228` (no times); regular
+casts return nil (no vanilla data).
 
-What's missing for the full modern signature: the start/end-time
-fields. The local player has `Script_SpellStopCasting`-adjacent
-state at fixed VAs (`m_castingSpellId`, `m_castStartMs`,
-`m_castEndMs`) — but for *other* units we'd need to either find
-broadcast UpdateFields holding the same, or compute end-time on
-the client from `Spell.dbc`'s cast time when we see a fresh
-UNIT_FIELD_CHANNEL_SPELL value. The 5.4.8/3.3.5 binaries are the
-right next stop for this.
+`isTradeskill` is real — `SPELL_ATTR_TRADESPELL` (Attributes bit 0x20,
+the version-stable bit 3.3.5's Script_UnitCastingInfo reads). Verified:
+Rough Blasting Powder (Engineering) → true, Conjure Food → false.
 
-Companion field to investigate while we're in here: `desc 0x1320`
-captures the *prior* channeled spellID after the channel ends —
-see entry #71 for what that's about.
+Cast time is the **effective** time, not base: we call the engine's
+cast-time helper `FUN_006e3340` (base + level scaling + cast-time SpellMod
+op 10 + the caster's haste/cast-speed multiplier at descriptor +0x22c) —
+the same helper the engine's own cast-start uses, so our end time matches
+the cast bar. Verified: talented Frostbolt (Improved Frostbolt -0.5s)
+reads 2.5s, not the 3.0s base. (Calling the helper beats replicating op 10
+via `Spell::Mod`, which would miss the cast-speed multiplier.)
+
+**Follow-up:** `delayTimeMs` pushback tracking (currently 0).
+
+Companion field (`desc 0x1320`, prior channeled spell) — see entry #71.
 
 ## 69. `IsGathering()` — easy (local player only)
 
@@ -2711,7 +2725,26 @@ matching modern's 3-tuple. `CastSpellNoToggle("<name>")` macros are
 also recognized because `Spell::CastNoToggle` already hooks the same
 parser to register that pattern.
 
-## 88. `PLAYER_EQUIPMENT_CHANGED(equipmentSlot, hasCurrent)` event
+## ~~88. `PLAYER_EQUIPMENT_CHANGED(equipmentSlot, hasCurrent)` event~~ — DONE
+
+**Resolution (2026-07-04, src/player/Equipment.cpp):** the 2026-05-22
+investigation kept trying to hook a FIRER of UNIT_INVENTORY_CHANGED.
+The winning move was the opposite: the engine has a generic
+descriptor-field observer system (the "__AUCMirrorHandler__" nodes —
+registrar `FUN_00467E70`, dispatcher `FUN_00465570` with per-node
+mirror + memcmp change detection). `FUN_004F8CC0` registers observers
+for the bag/backpack/bank/keyring GUID ranges but never for equipment
+`0x4A8..0x538` — so we co-hook it and REGISTER OUR OWN observer per
+equipment field, mirroring the engine's registration exactly (bank 4,
+size 8, player GUID). Callback ABI verified from the dispatcher call
+site at `0x004655DC` + `FUN_004F8DB0`'s `RET 0x10`:
+`__fastcall(fieldOffset /*ecx*/, size /*edx*/, guidLo, guidHi,
+oldValue*, userArg)`. hasCurrent read from the invMgr GUID array (the
+same "current truth" the engine's bag callback reads). No polling, no
+hot hook, engine-managed lifetime (setup re-runs each enter-world).
+Offsets documented at `FUN_DESC_OBSERVER_REGISTER` in Offsets.h.
+
+Original notes below kept for the investigation trail.
 
 WotLK-era event that fires every time a paperdoll slot changes
 (equip, unequip, swap). Heavily used by gear-tracking,
@@ -2814,7 +2847,33 @@ Same diff feeds `EQUIPMENT_SETS_CHANGED` /
 module — currently those fire only on user-side mutations, not
 on inventory changes that affect a set's "equipped count".
 
-## 89. `UPDATE_INVENTORY_DURABILITY` event
+## ~~89. `UPDATE_INVENTORY_DURABILITY` event~~ — DONE
+
+**Resolution (2026-07-04, src/player/Equipment.cpp):** co-hook the
+engine's inventory-alerts recompute `FUN_004C7EE0` — the routine that
+walks equipment slots, reads each item's durability/broken state from
+the descriptor, and unconditionally fires vanilla's
+`UPDATE_INVENTORY_ALERTS` (event 501). The engine calls it whenever an
+owned item's fields change (the item post-update handler `FUN_005D9A90`
+routes every item values-update through it, alongside
+UNIT_INVENTORY_CHANGED and the bag-update chain) plus equip and
+enter-world paths — i.e., it IS the engine's own "durability may have
+changed" signal. Post-original we diff a per-slot {guid, durability}
+snapshot (seeded silently on the first recompute per enter-world) and
+fire once per recompute with a real change. No polling, no hot hook.
+
+**Dead end tried first:** bank-1 (ITEM field) descriptor observers per
+equipped item, via the TODO #88 observer system. They register without
+error but are NEVER invoked — item values-updates demonstrably arrive
+(probed the values pre-pass `FUN_00465330`) and player-bank observers
+fire in the same session; registration arithmetic fully verified (bank
+base `FUN_00465690(1)=0x18`, bank walk item 0→1→2, anchors match
+dispatch). Prime suspect: the registrar's internal wrapper lookup
+(`FUN_00464890`, the observer registry — NOT the object manager)
+silently no-ops for item objects. See the DEAD END note at
+`OFF_DESC_ITEM_DURABILITY` in Offsets.h.
+
+Original notes below kept for the investigation trail.
 
 Fires when any equipped item's durability changes — picks up
 combat damage, repairs, item destruction. Used by Repair-O-Matic
@@ -3287,3 +3346,472 @@ the matching read. Both should be straightforward once the field
 offset is identified — 3.3.5's `Script_*` equivalents are a good
 starting point for what the parameter shape and bounds-clamp
 behavior should be.
+
+## ~~97. Lift GameTooltip's 30-line cap~~ — DONE
+
+Shipped as [src/tooltip/LinePool.cpp](src/tooltip/LinePool.cpp): pure C++,
+no addon Lua. Co-hooks the XML-OnLoad region scan (FUN_00529650, vtable
+slot 9) via `Game::HookAutoRegister`; after the engine sets up the
+template's 30 lines it creates `TextLeft/Right 31..60` in C++ (alloc →
+ctor → name → font-copied-from-prev → anchor, offsets scaled pixel →
+internal like Script_SetPoint) and appends them to the tooltip's three
+line arrays, bumping `numLinesAllocated`. Runs once per GameTooltip-family
+frame at creation + per `/reload`, so it auto-covers GameTooltip,
+ShoppingTooltip1/2, ItemRefTooltip, AtlasLootTooltip, WorldMapTooltip, …
+Verified in-game: AtlasLoot tooltip rendered a 31st line correctly. Cap is
+`kMaxLines = 60`. The design notes below record the RE trail; Approach A
+(hook AddLine) / Approach B (addon Lua) were both explored and dropped in
+favor of the scan-hook.
+
+Vanilla 1.12's `GameTooltip:AddLine` silently drops any line past the
+pool of `TextLeftN`/`TextRightN` FontStrings the XML template
+pre-declares (30). Modern (3.3.5+) engines grow the pool on demand.
+Addons that append comparison summaries, item-info footers, or aura
+details to a full item tooltip get their tail chopped. Practical
+example — pfUI's eqcompare block (base-stat deltas inline + extended
+stats appended at the bottom) hits the cap on stat-heavy items where
+the vendor tooltip already has ~22 lines and the compare block adds
+another 10; extended-stat rows past line 30 disappear silently.
+
+Also affects `ShoppingTooltip1`/`ShoppingTooltip2` (same
+`GameTooltipTemplate`).
+
+### Root cause (verified in Ghidra on the 1.12 Octo binary)
+
+`AddLine` internal impl at `FUN_00530270` — the shared body called
+from both `Script_GameTooltipAddLine` (`FUN_00531630`, method ptr
+stored in the GameTooltip method table alongside the `"AddLine"`
+string at `0x00854560`) and `Script_GameTooltipAddDoubleLine`:
+
+```c
+void FUN_00530270(int this, char *leftText, char *rightText,
+                  colorLeft, colorRight, wrapFlag) {
+    if ((*(int *)(this + 0x31c) != *(int *)(this + 0x320)) && anyHasText) {
+        // set leftText on textLeft[numLines_used],
+        // set rightText on textRight[numLines_used],
+        // wrapFlag[numLines_used] = wrapFlag,
+        // ++numLines_used
+    }
+    // else: silently drop the line
+}
+```
+
+`0x320 == 800` decimal, matches decompile. Pool exhausted ⇒ nothing
+happens.
+
+### CGameTooltip struct offsets (1.12)
+
+Derived from `FUN_00530270` and the pool-init at `FUN_00529650`:
+
+| Offset | Field                                              |
+|--------|----------------------------------------------------|
+| `+0x31c` | `numLines` — current write index (0-based)       |
+| `+0x320` | `numLinesAllocated` — pool size (30 default)     |
+| `+0x328..+0x32c` | `textLeft[]` — array of `CSimpleFontString *`, count `+0x320` |
+| `+0x334..+0x338` | `textRight[]` — same, symmetric right column |
+| `+0x340..+0x344` | `wrapFlag[]` — per-line wrap bool           |
+
+Actual layout of the array slots: `+0x328` is the first ptr in an
+external heap block whose base is `param_1[0xcb]` = `+0x32c`. The
+init function reallocates all three arrays whenever `numLinesAllocated`
+would change — see `FUN_00536c80` (the reallocator) and `FUN_004368c0`
+(a matching alloc for the wrap-flag array of a different element size).
+
+### The pool-init function
+
+`FUN_00529650` — walks `%sTextLeftN` / `%sTextRightN` FontString names
+from the FrameXML-declared pool, counts them, reallocates the three
+arrays, stores the pointers. Called via vtable slot at `0x00808f84`
+(only xref) — likely `SetOwner` or an equivalent virtual reset method
+runs it. It's the natural growth path — if we can force it to see a
+larger pool of Lua-visible FontStrings and trigger it, the arrays
+resize themselves.
+
+### The 3.3.5 reference (already REd)
+
+3.3.5's `GameTooltip::AddLine` at `0x0061fec0` has the grow-on-demand
+branch we want to backport. Shape:
+
+```c
+if (currentLine == numLinesAllocated - 1) {
+    format(buf, 256, "%sTextLeft%d", tooltipName, currentLine + 1);
+    auto *fs = SimpleFontString::create(this, /*layer*/2, /*subLayer*/1);
+    fs->setName(buf);
+    fs->setFontObject(prevLeft->fontObject);
+    fs->anchor(TOPLEFT, prevLeft, BOTTOMLEFT, 0.0, calculatedYOffset);
+    // ... mirror for TextRight ...
+    // ... append fs to textLeft[]/textRight[] at [numLinesAllocated],
+    //     then ++numLinesAllocated.
+}
+// fall through to the existing "set text on line[currentLine]" path
+```
+
+3.3.5 helpers (offsets 3.3.5-specific — 1.12 equivalents need to be
+re-derived):
+- `FUN_00485240` — SimpleFontString constructor `(parent, layer, sublayer)`
+- `FUN_0048b6c0` — set-name helper (registers under global `_G[name]`)
+- `FUN_0048a260` — anchor helper `(this, anchorPoint, relativeTo, relativePoint, xoff, yoff)`
+
+Struct offsets in 3.3.5 were `+0x2a4` (numLines) / `+0x2a8` (numAlloc) /
+`+0x2b4` (textLeft) / `+0x2c0` (textRight) / `+0x2cc` (wrapFlag). All
+shifted vs. 1.12 (see above), unsurprising given TBC/WotLK bloat.
+
+### Implementation plan
+
+**Approach A — pre-hook AddLine with a grow-if-needed prelude
+(preferred)**:
+
+1. Locate the 1.12 equivalents of the three 3.3.5 helpers. Trace them
+   from existing `CSimpleFontString`-creating sites in the engine —
+   the CreateFontString API dispatch is a good starting point (it's
+   Lua-visible and calls the same constructor).
+2. Locate the array reallocators used by `FUN_00529650`
+   (`FUN_00536c80` for the two pointer arrays, `FUN_004368c0` for the
+   wrap-flag byte array).
+3. MinHook `FUN_00530270`. Pre-hook body:
+   - If `numLines != numLinesAllocated`, call original — done.
+   - Otherwise: realloc the three arrays to `numLinesAllocated + 1`,
+     create two new `CSimpleFontString` (left + right), name them
+     `"%sTextLeft%d"` / `"%sTextRight%d"` with `tooltip->GetName()` and
+     the new index, anchor each below the prior-slot FontString on the
+     same side, use the prior FontString's `fontObject` (`+0xd8` in the
+     3.3.5 layout — confirm on 1.12) as the default, write the pointers
+     into `textLeft[numLinesAllocated]` / `textRight[numLinesAllocated]`,
+     zero-init `wrapFlag[numLinesAllocated]`, and bump
+     `numLinesAllocated`.
+   - Then tail-call the original — it now succeeds normally.
+
+**Approach B — pre-declare a wider pool via Lua** (fallback if the
+constructor helpers turn out to be too tangled):
+
+1. In `!!!ClassicAPI` addon, at load time, call
+   `GameTooltip:CreateFontString("GameTooltipTextLeft" .. i, "ARTWORK",
+   "GameTooltipText")` for `i = 31..60`, plus `TextRightN`, plus set
+   anchors matching the pattern in the template.
+2. Force the engine's pool-init to re-scan. If we can't reach the
+   vtable trigger cleanly, expose a small C entrypoint that walks the
+   pool the same way `FUN_00529650` does — takes `tooltip` as arg,
+   reallocates arrays, refills.
+
+Approach B is less code but ties the cap to a fixed number (60 lines
+is enough for pfUI's use case but arbitrary). Approach A grows on
+demand like retail and has no ceiling.
+
+### Testing
+
+- Hover a random-suffix weapon with several equip-spell bonuses (Krol
+  Blade, Ironfoe, any ZG/AQ trinket) — tooltip should render >30 lines
+  without truncation.
+- Hover an item that produces a 40+ line tooltip when pfUI's eqcompare
+  block is enabled (Priest Judgement Set chest against another
+  Judgement chest: item tooltip ~22 lines + compare block ~10 lines).
+- Verify no crash / no visual glitches on:
+  - ShoppingTooltip1/2 (same class, same `GameTooltipTemplate`)
+  - Rapid re-hovers (create/destroy pressure on the added FontStrings)
+  - Item tooltips that stay under 30 lines (pre-existing behavior unchanged)
+
+### Risks
+
+- If the array reallocation logic in `FUN_00536c80` doesn't null-out
+  the tail on grow, `textLeft[N]`/`textRight[N]` might contain
+  garbage for a frame — anchor before write, or memset to zero.
+- FontString lifetime: 3.3.5 leaks the extras for the tooltip
+  lifetime (they stay hidden when unused). GameTooltip is a
+  singleton, so leak is bounded. Fine.
+- Interaction with `pfUI`'s existing tooltip skinning (frame borders,
+  status bar reposition, etc.): the layer we're modifying is beneath
+  the skinning; shouldn't touch anything visible unless anchor math
+  is wrong.
+
+### Related
+
+If we ever consider dropping the whole "GameTooltipTemplate declares
+30 FontStrings in XML" scheme and instead having the engine start
+with 0 and grow entirely on demand — that would be even cleaner, but
+requires patching every consumer of the initial pool (there aren't
+many, but they need audit). Filed for future if the incremental grow
+turns out to be fragile.
+
+### Investigation update (resolved unknowns)
+
+Traced the pool machinery end-to-end. The open questions above are now
+answered, and they point away from both the AddLine hook (Approach A)
+and the "trigger the engine's scan" idea — a **hybrid** is cleaner than
+either.
+
+**The scan is virtual slot 9, run only at XML-template instantiation.**
+`FUN_00529650` is slot 9 (`vtable+0x24`) of the CGameTooltip vtable
+(base `0x00808f60`; the null at `0x00808f5c` is the boundary, and slot 2
+`0x005368d0` is the `tooltip:method()` dispatcher — confirms the class).
+The two vtable-base xrefs are the constructors `FUN_00529240` /
+`FUN_00529480`. The scan's prologue calls
+`FUN_0076a2f0(node) → FUN_0076a060(node)`, which reads the XML
+`"inherits"` attribute and child `"Frames"` — i.e. the scan is the
+frame's **XML OnLoad / region-setup** virtual. It runs once when
+`GameTooltip` is built from `GameTooltipTemplate` (and again per
+`/reload`), **not** on `SetOwner`/show. So we can't cheaply re-trigger
+it — the `node` arg is a live XML-parse handle we don't have, and
+calling it with a bogus node runs the inherits/Frames path on garbage.
+
+**The scan finds lines by `_G[name]`, so Lua-created FontStrings count.**
+`numLinesAllocated` (`+0x320`) is literally "how many contiguous
+`%sTextLeftN` **and** `%sTextRightN` exist by name": pass 0 counts (stop
+at the first missing index), pass 1 reallocs the three arrays to that
+count and fills the pointers. The name lookup `FUN_0076c760` does
+`lua_pushstring(name); gettable(_G); if type==TABLE: FrameScript_GetObject`
+— a plain `_G[name]` resolve, so a FontString made with
+`GameTooltip:CreateFontString("GameTooltipTextLeft31", …)` **is**
+visible to it. (Names must be contiguous and exist in *both* columns.)
+
+**The array reallocators are simple and callable from C.**
+`FUN_00536c80` (pointer arrays) and `FUN_004368c0` (wrap-flag array) are
+the same routine with different SMem tags:
+`__thiscall(descriptor, newCount)` where the descriptor is
+`{ count@+0x0, cap@+0x4, data@+0x8 }` — reallocs `data` to `newCount*4`
+and copies the old contents. In the tooltip the three descriptors are:
+
+| Descriptor `this` | count / cap / data | array |
+|-------------------|--------------------|-------|
+| `tooltip + 0x324` | `+0x324 / +0x328 / +0x32c` | `textLeft[]`  (`CSimpleFontString*`) |
+| `tooltip + 0x330` | `+0x330 / +0x334 / +0x338` | `textRight[]` |
+| `tooltip + 0x33c` | `+0x33c / +0x340 / +0x344` | `wrapFlag[]`  (int, 4-byte) |
+
+`numLinesAllocated` (`+0x320`) is a separate field the scan sets equal
+to the count; AddLine (`FUN_00530270`) gates on
+`numLines(+0x31c) != numLinesAllocated(+0x320)`.
+
+**Recommended approach — Lua creates FontStrings, C grows the arrays
+(no hook, no XML re-run).** Replicate the scan's pass 1 directly:
+
+1. **Lua (`!!!ClassicAPI`), at load / `PLAYER_LOGIN`:** for each frame on
+   `GameTooltipTemplate` (`GameTooltip`, `ShoppingTooltip1/2`,
+   `ItemRefTooltip`, …), create `<name>TextLeft31..N` and
+   `<name>TextRight31..N` via `frame:CreateFontString(nm, "ARTWORK",
+   "GameTooltipText")`, each anchored `TOPLEFT`/`TOPRIGHT` to the prior
+   line's `BOTTOMLEFT`/`BOTTOMRIGHT` (mirror the template's chain).
+   This avoids re-deriving the 1.12 FontString ctor / setName / anchor
+   helpers that Approach A needed — Lua already wraps them.
+2. **C entrypoint** `GrowTooltipPool(tooltipObj, newCount)` (expose as a
+   Lua global, called once per frame right after step 1):
+   - `FUN_00536c80(tooltip+0x324, newCount)`; set `+0x328 = newCount`.
+   - `FUN_00536c80(tooltip+0x330, newCount)`; set `+0x334 = newCount`.
+   - `FUN_004368c0(tooltip+0x33c, newCount)`; set `+0x340 = newCount`.
+   - for `i` in `[oldAlloc, newCount)`: resolve `<name>TextLeftN`/
+     `RightN` via the `_G[name]` dance (same as `FUN_0076c760`), and if
+     either is missing stop at `i`; else write the two pointers into the
+     new `textLeft`/`textRight` data slots and zero `wrapFlag[i]`.
+   - set `numLinesAllocated (+0x320) = i`.
+   Resolve `tooltipObj` from the Lua frame the same way our other
+   tooltip methods do (`FrameScript_GetObject`).
+
+Runs once per frame per session (re-runs on `/reload`, which recreates
+the frames → scan resets to 30 → our addon re-creates + re-grows). No
+per-line hook (dodges the MinHook-collision risk on a moderately hot
+function), no XML-node fabrication.
+
+Remaining risk to validate in-game: whether AddLine's downstream layout
+/ `Show` sizing walks `numLines` FontStrings by their anchors (expected)
+vs. any hidden fixed-30 assumption elsewhere; and that the Lua-created
+lines inherit height/spacing identical to the template's 1..30 so the
+tooltip grows seamlessly. Both are observable on the first >30-line
+hover.
+
+## 98. `UnitThreatSituation` / `UnitDetailedThreatSituation` / `GetThreatStatusColor` — NOT FEASIBLE in a client DLL
+
+Modern (WotLK+) exposes three threat APIs:
+[`UnitThreatSituation`](https://warcraft.wiki.gg/wiki/API_UnitThreatSituation)
+(unit → 0..3 aggro status),
+[`UnitDetailedThreatSituation`](https://warcraft.wiki.gg/wiki/API_UnitDetailedThreatSituation)
+(isTanking, status, threatPct, rawThreatPct, threatValue), and
+[`GetThreatStatusColor`](https://warcraft.wiki.gg/wiki/API_GetThreatStatusColor)
+(status → RGB). None of them can be backed by ClassicAPI, because
+**the underlying data does not exist on the 1.12 client** — not in a
+form a DLL can read, and not by any amount of RE.
+
+### Threat is 100% server-authoritative in vanilla; no threat opcode exists
+
+Vanilla 1.12's threat lives entirely inside the server's
+`ThreatManager` (per-creature `ThreatList` of `HostileReference`s —
+see Turtle's
+[`src/game/Threat/ThreatManager.cpp`](C:\Git\turtle-wow\Dumps\Source%20Code\16%20-%20Development_server\patch_1172\src\game\Threat\ThreatManager.cpp)).
+The 3.3.5 client can show a threat meter because WotLK added
+`SMSG_THREAT_UPDATE` / `SMSG_HIGHEST_THREAT_UPDATE` (and the client
+keeps a per-unit threat table those packets feed). **1.12 has no such
+opcode** — the protocol never transmits per-unit threat values, so
+there is nothing in client memory to read. This is the same class of
+limitation as `C_QuestLog.IsQuestFlaggedCompleted` (TODO #1): the
+client simply isn't told. Unlike cast timing (TODO #91, recoverable
+from `SMSG_SPELL_START`) or aura casters (recoverable from
+`SMSG_SPELL_GO`), there is **no incidental packet** that leaks threat
+either — the server computes tanking/aggro decisions internally and
+broadcasts none of the numbers.
+
+### How Turtle actually does it — a *server-side* addon-channel protocol
+
+TWThreat (`C:\WoW\Octo\Interface\Addons\TWThreat`) is not reading
+client memory; it round-trips through a **custom server patch**:
+
+1. Client → server: the addon `SendAddonMessage("TWT_UDTSv4"[.._TM],
+   "limit=NN", "PARTY"/"RAID")` — a normal `CMSG_MESSAGECHAT` addon
+   message (`TWThreat.lua:1207` `TWT.UnitDetailedThreatSituation`).
+2. Server intercepts the prefix in
+   [`ChatHandler.cpp:1051`](turtle-wow\Dumps\Source%20Code\16%20-%20Development_server\patch_1172\src\game\Handlers\ChatHandler.cpp)
+   (`strstr(msg, "TWT_UDTSv4")`), validates
+   `GetSelectedCreature()->CanHaveThreatList()`, and calls
+   `ThreatManager::UnitDetailedThreatSituation(creature, player, limit,
+   tankMode)`.
+3. That serializer (`ThreatManager.cpp:441`) walks the real
+   `getThreatList()` and builds a `TWTv4=name:pct:threat;…` string,
+   then `SendAddonMessage`s it back.
+4. Client parses it in `CHAT_MSG_ADDON` → `TWT.handleThreatPacket`
+   (`TWThreat.lua:790`).
+
+Every threat number the meter shows originated on the server and was
+put on the wire by a server-side code change ClassicAPI has no
+counterpart to. A client DLL cannot manufacture data the server never
+sends.
+
+### Even where a server *does* expose it, the transport is async
+
+The Turtle path is a request/response over the addon chat channel —
+fundamentally asynchronous (poll on `OnUpdate`, handle the reply on a
+later frame). It cannot back a **synchronous** `UnitThreatSituation()`
+that returns a value in the same call, which is exactly why TWThreat is
+structured around events and a cached `TWT.threats` table rather than a
+blocking query. A ClassicAPI shim would at best have to fake a
+synchronous return from a stale cache, and the cache only exists if a
+Turtle-style server is feeding it — i.e. the shim would add nothing the
+addon isn't already doing in Lua.
+
+### `GetThreatStatusColor` is the only client-pure piece — and it's trivial Lua
+
+`GetThreatStatusColor(status)` is just a fixed 0..3 → RGB map (grey /
+yellow / orange / red); no engine data involved. But it's meaningless
+without a real `status` to feed it, and it's a two-line Lua table
+lookup — no reason to spend a DLL global on it. If we ever ship a
+threat polyfill it belongs beside the (Lua, server-dependent) status
+source, not in the DLL.
+
+**Verdict:** skip all three. The data is server-only with no vanilla
+opcode, the only working implementation (Turtle) is a server patch plus
+an async addon-channel protocol that lives correctly in Lua, and the
+one client-pure function is a trivial color table. Nothing here is a
+client-DLL problem.
+
+### If we synthesized it anyway
+
+"Can't read it" and "can't estimate it" are separate claims. We can't
+read threat (above); *estimating* it is possible, but it splits into two
+tiers, and neither one is a DLL feature.
+
+**Tier 1 — client-only proxy from the mob's target (small, honest,
+nearly useless).** The one threat-correlated fact vanilla *does* sync to
+the client is the creature's current target (`UNIT_FIELD_TARGET` in the
+descriptor — the same field `"<mob>target"` / `targettarget` reads). A
+mob attacks its highest-threat valid target, so `mobTarget == unit` ≈
+"unit is tanking". That yields:
+
+- `UnitThreatSituation(unit, mob)` → `3` when the mob targets `unit`,
+  else `nil`. It **cannot** produce `1` ("higher than tank, about to
+  pull") or distinguish `2` from `3` — those are numeric comparisons and
+  we have no numbers.
+- `UnitDetailedThreatSituation` → `isTanking` only; `status` degenerate,
+  `threatpct` / `rawthreatpct` / `threatvalue` all unavailable.
+- Laggy: it changes only when the mob switches target (a descriptor
+  update), so it *trails* real threat and gives zero predictive warning
+  — the entire reason a threat meter exists.
+
+This needs no DLL: `UnitIsUnit("<mob>target", unit)` already does it in
+pure Lua. Shipping it under the real API names would be actively
+misleading (callers expect the 0–3 gradient plus percentages), so it's
+not worth it even as a stub.
+
+**Tier 2 — a real threat model (accurate-ish, huge, cooperative, ~95%
+Lua).** This is what KTM / KLHThreatMeter / vanilla-Omen actually do, and
+the only synthesis that fills the percentage/prediction dimensions the
+API is *for*:
+
+1. **Model your own threat.** Parse your outgoing combat events and
+   convert them to threat via a per-spell coefficient database (damage ≈
+   1 threat per point, healing ≈ 0.5/HP applied to *every* mob in combat,
+   flat-threat abilities like Sunder Armor / Demo Shout, per-spell
+   bonus/penalty coefficients), then apply your active multipliers —
+   stance/form (Defensive 1.3×, Berserker 0.8×, Bear/Cat), Righteous Fury
+   (+Holy threat), Blessing of Salvation (0.7×), threat-reduction
+   trinkets — and handle the sets/wipes: taunt (sets you to current top),
+   Feign Death, Vanish, Fade, Cower.
+2. **Broadcast** your per-mob estimate over `SendAddonMessage` and
+   **aggregate** everyone else's broadcasts into a per-mob table.
+3. Derive `isTanking` / `status` / the percentages by comparing each
+   member to the current tank against the **110% melee / 130% ranged**
+   pull threshold — the exact constants both Turtle's server serializer
+   (`ThreatManager.cpp:494`, `threatValue*100 / (tankThreat * (isMelee ?
+   1.1 : 1.3))`) and TWThreat's client fallback (`TWThreat.lua:932`)
+   use. Worth stealing verbatim so a synthesized `threatpct` lines up
+   with what real-threat clients show.
+
+Why it isn't ours to build:
+
+- The coefficient DB is **game-knowledge, not in the binary** — you
+  cannot RE it out of the client; it's the classic hand-maintained
+  Threat-1.0/KTM data. The parsing, broadcast, and aggregation are all
+  Lua. The talent/aura/stance *inputs* are already exposed by existing
+  ClassicAPI functions (`GetTalentInfo`, the aura APIs, `IsPlayerSpell`,
+  the spell-mod reads). **None of it is a client-DLL problem.**
+- **Cooperative-only.** You can precisely model only members running the
+  same addon and broadcasting; a non-participating tank is invisible (the
+  original KTM caveat). The intuitive objection — "I can see everyone's
+  damage in the combat log, why can't I model them from one client?" —
+  fails for three compounding reasons, none liftable by the DLL:
+  1. **You don't actually see everyone's events.** Vanilla's combat log
+     is visibility/range-gated — the server only broadcasts combat events
+     for units near you, not the whole raid. A stacked 5-man logs most of
+     it (so a single-observer model degrades *gracefully* in dungeons); a
+     spread 40-man leaves you blind to the ranged camp, the back-line
+     healers, anyone outside your bubble. The DLL can't recover these —
+     the server never sends the packets, so there's nothing to hook.
+  2. **Threat ≠ damage, and the missing factor is hidden.** Threat is
+     `damage × stance × talents × buffs`, not 1:1. The talent factor
+     (Defiance, Subtlety, Feral Instinct, Shadow Affinity, Frost
+     Channeling — the passive threat-mod talents) is **unreadable for
+     other players in vanilla**; there's no inspect path to it. Stance /
+     Blessing of Salvation / Fade are at least observable auras when the
+     unit is in range, but talents are pure hidden state, so an observer
+     can't derive a stranger's coefficient from their damage.
+  3. **Much threat has no attributable log line.** In-combat healing
+     generates threat on *every* mob the healer is engaged with (not the
+     mob the heal touched); buffs / HoTs / PW:Fortitude, flat-threat
+     abilities, and pet threat either don't appear in the log or can't be
+     pinned to the right mob from a single line.
+
+  Broadcasting sidesteps all three because each client computes threat
+  from *private, authoritative* knowledge — its own exact casts, its own
+  talents, its own active stance/buffs — then shares the finished number.
+  The Tier-1 mob-target read is worth keeping here *only* as a cross-check
+  — it reveals who actually holds aggro regardless of who's broadcasting.
+- **It's an estimate that drifts.** Addon threat models desync from the
+  server's true numbers (rounding, unmodeled effects, out-of-range or
+  missed events). That drift is precisely why Blizzard later added
+  `SMSG_THREAT_UPDATE` and why Turtle chose a server serializer over
+  blessing an addon guess.
+
+**The only DLL-shaped angle — and it's an *input*, not threat.** The one
+place a DLL beats Lua is the feed: vanilla's combat log is localized text
+keyed by unit *name* (ambiguous with duplicate names, breaks per-locale).
+Hooking the damage/heal packet handlers (`SMSG_SPELLNONMELEEDAMAGELOG`,
+`SMSG_ATTACKERSTATEUPDATE`, `SMSG_PERIODICAURALOG`) to emit precise,
+GUID-keyed, unlocalized damage/heal events would make any Lua threat
+model far more robust. But (a) that's a **separate feature** — a
+`COMBAT_LOG_EVENT`-style feed, useful well beyond threat — that should be
+filed on its own merits; (b) it still only *feeds* the Lua model — threat
+stays an estimate, computed cooperatively in Lua; and (c) on the actual
+target environment SuperWoW already exposes GUID-keyed combat info +
+`UNIT_CASTEVENT`, so even this niche is largely pre-filled.
+
+**Bottom line on synthesis:** Tier 1 is a Lua one-liner too degenerate to
+wear the API's name; Tier 2 is a full KTM/Omen reimplementation that is
+almost entirely Lua data + logic, cooperative-only, and inherently an
+estimate. Anyone who wants vanilla threat should run an existing threat
+addon. ClassicAPI's only worthwhile contribution in this space is an
+unrelated precise-combat-log event feed — filed as its own thing, not as
+"threat".

cmake/embed_addon.cmake

@@ -0,0 +1,115 @@
+# embed_addon.cmake — bundle an addon directory into a generated C++ header.
+#
+# Invoked from CMakeLists.txt via `cmake -P` as a custom command. Reads every
+# file under SRC_DIR recursively and emits OUT_HEADER containing:
+#
+#   namespace Addons::Embedded {
+#       struct File {
+#           const char *path;
+#           const unsigned char *data;
+#           size_t size;
+#       };
+#       extern const File kFiles[];
+#       extern const size_t kFileCount;
+#   }
+#
+# Paths are normalized to lowercase backslash-form relative to
+# `Interface\AddOns\` so they match what the engine's TOC parser
+# constructs when it asks for the addon's files (see
+# `s_Interface_AddOns__s__s_toc_00853840` in the binary). The
+# manifest is hash-table-friendly for fast lookup but the lookup
+# walks the array linearly — fine for 25 files.
+#
+# Usage:
+#   cmake -DSRC_DIR=... -DOUT_HEADER=... -DADDON_NAME=... -P embed_addon.cmake
+
+if(NOT SRC_DIR)
+    message(FATAL_ERROR "embed_addon.cmake: SRC_DIR required")
+endif()
+if(NOT OUT_HEADER)
+    message(FATAL_ERROR "embed_addon.cmake: OUT_HEADER required")
+endif()
+if(NOT ADDON_NAME)
+    message(FATAL_ERROR "embed_addon.cmake: ADDON_NAME required")
+endif()
+
+file(GLOB_RECURSE INPUT_FILES RELATIVE "${SRC_DIR}" "${SRC_DIR}/*")
+list(SORT INPUT_FILES) # deterministic codegen
+
+set(BODY "")
+set(MANIFEST "")
+set(INDEX 0)
+foreach(REL_PATH ${INPUT_FILES})
+    set(ABS_PATH "${SRC_DIR}/${REL_PATH}")
+    file(READ "${ABS_PATH}" CONTENT_HEX HEX)
+    string(LENGTH "${CONTENT_HEX}" HEX_LEN)
+    math(EXPR FILE_SIZE "${HEX_LEN} / 2")
+
+    # Convert hex string to comma-separated byte literals. 16 bytes per line
+    # keeps the generated header readable.
+    set(BYTES "")
+    set(COL 0)
+    set(POS 0)
+    while(POS LESS HEX_LEN)
+        string(SUBSTRING "${CONTENT_HEX}" ${POS} 2 BYTE)
+        if(COL EQUAL 0)
+            string(APPEND BYTES "    ")
+        endif()
+        string(APPEND BYTES "0x${BYTE},")
+        math(EXPR POS "${POS} + 2")
+        math(EXPR COL "${COL} + 1")
+        if(COL EQUAL 16)
+            string(APPEND BYTES "\n")
+            set(COL 0)
+        else()
+            string(APPEND BYTES " ")
+        endif()
+    endwhile()
+    if(NOT COL EQUAL 0)
+        string(APPEND BYTES "\n")
+    endif()
+
+    # Normalize path to engine-style: `<AddonName>\Sub\Path.lua` with
+    # backslashes. Engine constructs full path as
+    # `Interface\AddOns\<AddonName>\<file>` — we strip the
+    # `Interface\AddOns\<AddonName>\` prefix at lookup time so storing
+    # just the relative form keeps the manifest small.
+    string(REPLACE "/" "\\\\" REL_PATH_BS "${REL_PATH}")
+
+    string(APPEND BODY "static const unsigned char kData_${INDEX}[] = {\n${BYTES}};\n\n")
+    string(APPEND MANIFEST "    { \"${REL_PATH_BS}\", kData_${INDEX}, ${FILE_SIZE} },\n")
+
+    math(EXPR INDEX "${INDEX} + 1")
+endforeach()
+
+set(HEADER_CONTENT "// Auto-generated by embed_addon.cmake — do not edit.
+// Source: ${SRC_DIR}
+//
+// Addon \"${ADDON_NAME}\" embedded as a fallback for users who don't have
+// it installed on disk. See src/addons/Embedded.cpp for the file-read
+// hook that surfaces these buffers to the engine.
+
+#pragma once
+
+#include <cstddef>
+
+namespace Addons::Embedded {
+
+namespace ${ADDON_NAME}Files {
+
+${BODY}static const struct File {
+    const char *path;
+    const unsigned char *data;
+    size_t size;
+} kFiles[] = {
+${MANIFEST}};
+
+static constexpr size_t kFileCount = sizeof(kFiles) / sizeof(kFiles[0]);
+
+} // namespace ${ADDON_NAME}Files
+
+} // namespace Addons::Embedded
+")
+
+file(WRITE "${OUT_HEADER}" "${HEADER_CONTENT}")
+message(STATUS "embed_addon: wrote ${OUT_HEADER} (${INDEX} files)")

cmake/embed_file.cmake

@@ -0,0 +1,62 @@
+# embed_file.cmake — bundle a single file into a generated C++ header.
+#
+# Invoked from CMakeLists.txt via `cmake -P` as a custom command. Reads
+# INPUT_FILE and emits OUT_HEADER containing a constexpr byte array
+# named SYMBOL plus a `SYMBOL ## Size` size constant. Both live at file
+# scope; the header is meant to be included exactly once.
+#
+# Usage:
+#   cmake -DINPUT_FILE=... -DOUT_HEADER=... -DSYMBOL=... -P embed_file.cmake
+
+if(NOT INPUT_FILE)
+    message(FATAL_ERROR "embed_file.cmake: INPUT_FILE required")
+endif()
+if(NOT OUT_HEADER)
+    message(FATAL_ERROR "embed_file.cmake: OUT_HEADER required")
+endif()
+if(NOT SYMBOL)
+    message(FATAL_ERROR "embed_file.cmake: SYMBOL required")
+endif()
+
+file(READ "${INPUT_FILE}" CONTENT_HEX HEX)
+string(LENGTH "${CONTENT_HEX}" HEX_LEN)
+math(EXPR FILE_SIZE "${HEX_LEN} / 2")
+
+# Convert hex string to comma-separated byte literals. 16 bytes per
+# line keeps the generated header readable.
+set(BYTES "")
+set(COL 0)
+set(POS 0)
+while(POS LESS HEX_LEN)
+    string(SUBSTRING "${CONTENT_HEX}" ${POS} 2 BYTE)
+    if(COL EQUAL 0)
+        string(APPEND BYTES "    ")
+    endif()
+    string(APPEND BYTES "0x${BYTE},")
+    math(EXPR POS "${POS} + 2")
+    math(EXPR COL "${COL} + 1")
+    if(COL EQUAL 16)
+        string(APPEND BYTES "\n")
+        set(COL 0)
+    else()
+        string(APPEND BYTES " ")
+    endif()
+endwhile()
+if(NOT COL EQUAL 0)
+    string(APPEND BYTES "\n")
+endif()
+
+set(HEADER_CONTENT "// Auto-generated by embed_file.cmake — do not edit.
+// Source: ${INPUT_FILE}
+
+#pragma once
+
+#include <cstddef>
+
+static constexpr unsigned char ${SYMBOL}[] = {
+${BYTES}};
+static constexpr size_t ${SYMBOL}Size = sizeof(${SYMBOL});
+")
+
+file(WRITE "${OUT_HEADER}" "${HEADER_CONTENT}")
+message(STATUS "embed_file: wrote ${OUT_HEADER} (${FILE_SIZE} bytes)")

cmake/version.rc.in

@@ -0,0 +1,38 @@
+// Generated from cmake/version.rc.in by CMake configure_file().
+// Stamps the PE VERSIONINFO resource so Explorer -> Properties -> Details
+// and GetFileVersionInfo() report the same version as the CLASSIC_API_VERSION
+// Lua global. Both derive from the CLASSICAPI_TAG (vMAJOR.MINOR.PATCH) cache
+// var; an untagged dev build gets the 9999.99.99 "newer than everything"
+// sentinel.
+
+#include <winver.h>
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION    @CLASSICAPI_VER_MAJOR@,@CLASSICAPI_VER_MINOR@,@CLASSICAPI_VER_PATCH@,0
+ PRODUCTVERSION @CLASSICAPI_VER_MAJOR@,@CLASSICAPI_VER_MINOR@,@CLASSICAPI_VER_PATCH@,0
+ FILEFLAGSMASK  VS_FFI_FILEFLAGSMASK
+ FILEFLAGS      0x0L
+ FILEOS         VOS_NT_WINDOWS32
+ FILETYPE       VFT_DLL
+ FILESUBTYPE    VFT2_UNKNOWN
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "CompanyName",      "ClassicAPI Team"
+            VALUE "FileDescription",  "ClassicAPI - modern WoW API backport for 1.12.1"
+            VALUE "FileVersion",      "@CLASSICAPI_VER_STRING@"
+            VALUE "InternalName",     "ClassicAPI"
+            VALUE "LegalCopyright",   "Licensed under GPLv3"
+            VALUE "OriginalFilename", "ClassicAPI.dll"
+            VALUE "ProductName",      "ClassicAPI"
+            VALUE "ProductVersion",   "@CLASSICAPI_VER_STRING@"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        // 0x0409 = U.S. English, 1200 = Unicode codepage.
+        VALUE "Translation", 0x409, 1200
+    END
+END

docs/LuaCAPI.md

@@ -3,7 +3,9 @@
 Catalogue of the Lua C API functions linked into the client. Vanilla WoW is
 built against **Lua 5.0** (not 5.1), and the entire API plus the auxiliary
 library lives in a contiguous block of `.text` from roughly `0x006F2000` to
-`0x006F5100`. ~120 functions; the public C API is the core of that.
+`0x006F5100`. ~120 functions; the public C API is the core of that. The
+thread / coroutine machinery (`lua_resume`, `lua_yield`, the inner
+`luaE_newthread`) lives slightly higher at `0x006F6000`–`0x006F6900`.
 
 **Cross-verified against two binaries:**
 
@@ -75,6 +77,8 @@ context but not byte-by-byte verified.
 
 | VA           | Function                | Conv.    | Notes                                                       | Conf |
 |--------------|-------------------------|----------|--------------------------------------------------------------|------|
+| `0x006F2F80` | `lua_xmove`             | fastcall | `(from, to, n)` — decr `from->top` by `n*0x10`, copy each 16-byte TValue, incr `to->top`. Used by `coroutine.*` to shuttle args/returns between threads | ★ |
+| `0x006F3030` | `lua_newthread`         | fastcall | GC check then calls inner `luaE_newthread` at `0x006F6B10`; pushes the new state onto L with tag 8 (LUA_TTHREAD). Returns `lua_State *` in eax — Ghidra reports `void` (decompiler artifact) | ★ |
 | `0x006F3070` | `lua_gettop`            | fastcall | `(top - base) >> 4`                                          | ★   |
 | `0x006F3080` | `lua_settop`            | fastcall |                                                              | ✓   |
 | `0x006F30D0` | `lua_remove`            | fastcall | shift-down loop + decr_top; previously misidentified as `lua_pushvalue` | ★ |
@@ -155,7 +159,10 @@ behaviour the comment describes (`push 0; mov edx, 1; mov ecx, L`) is
 | `0x006F4290` | *internal CFunction trampoline* |   | called via `lua_cpcall`                                  | ★   |
 | `0x006F4320` | `lua_load`               | fastcall | reader / loader entry                                    | ★   |
 | `0x006F4370` | `lua_dump`               | fastcall | requires tag 6 + `Closure.isC == 0`                      | ★   |
-| `0x006F4940` | `lua_error`              | cdecl    | `(L, msg)` — args on stack; reaches `luaD_throw` via wrappers | ✓ |
+| `0x006F4940` | `lua_error`              | **cdecl** varargs | `(L, fmt, ...)` — printf-style; engine prepends `luaL_where` then `lua_concat`. Single-string callers OK (cdecl tolerates extra-arg-less calls); user-controlled strings should use `Error(L, "%s", msg)` to avoid format-string interpretation | ✓ |
+| `0x006F6620` | `lua_resume`             | fastcall | `(L_co, nargs) → int`. Zero internal callers (coroutine lib was stripped from registration tables); linker kept the symbol. Stores nargs in a local, calls `luaD_rawrunprotected(L, &resume_inner, &nargs)` at `0x006F5DAC`; inner static helper at `0x006F67B0` | ★ |
+| `0x006F6860` | `lua_yield`              | fastcall | `(L, nresults) → int (-1)`. Sets `0x10` flag on CallInfo state field rather than directly writing `L->status` like later Lua versions. Errors with "attempt to yield across metamethod/C-call boundary" or "cannot yield a C function" when called from the wrong context | ★ |
+| `0x006F6B10` | *internal* `luaE_newthread` | fastcall | Inner allocator called by `lua_newthread` at `0x006F3030`. Allocates the new state, sets tag 8 via the push helper at `0x006F7B20`, inits via `0x006F6C40`, copies global-state fields from the parent. Returns `lua_State *` | ★ |
 
 ### Misc / GC / version
 

src/Common.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Common.h"

src/Common.h

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 namespace Common {

src/DllMain.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Common.h"
@@ -16,6 +16,7 @@
 #include "MinHook.h"
 #include "Offsets.h"
 #include "event/Custom.h"
+#include "nameplate/Walk.h"
 #include "player/NameCache.h"
 
 static Game::FrameScript_Initialize_t FrameScript_Initialize_o = nullptr;
@@ -37,6 +38,15 @@ static bool __fastcall FrameScript_Initialize_h() {
     // table is rebuilt at a fresh allocation; the old slots are stale.
     Event::Custom::PrepareForReload();
 
+    // Clear the nameplate diff state so currently-visible plates
+    // refire CREATED and UNIT_ADDED on the next tick — re-presents
+    // them to the freshly reloaded UI, matching modern WoW. The
+    // wrappers themselves now live in the engine's own registry
+    // (via `FrameScript_Object::ScriptRegister`), which the engine
+    // tears down and rebuilds across the Lua reset — no per-module
+    // cache to clear here.
+    NamePlate::Events::PrepareForReload();
+
     // Persist the name cache before the engine starts tearing down.
     // This hook fires on both `/reload` and `/logout` (the engine
     // re-initializes Lua state in both cases), giving us a clean

src/Game.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Game.h"
@@ -48,7 +48,17 @@ namespace Lua {
     F(PCall,       lua_pcall,       LUA_PCALL)        \
     F(Next,        lua_next,        LUA_NEXT)         \
     F(Type,        lua_type,        LUA_TYPE)         \
-    F(Error,       lua_error,       LUA_ERROR)
+    F(Error,       lua_error,       LUA_ERROR)        \
+    F(ToPointer,   lua_topointer,   LUA_TO_POINTER)   \
+    F(ToThread,    lua_tothread,    LUA_TO_THREAD)    \
+    F(IsCFunction, lua_iscfunction, LUA_IS_C_FUNCTION)\
+    F(XMove,       lua_xmove,       LUA_X_MOVE)       \
+    F(NewThread,   lua_newthread,   LUA_NEW_THREAD)   \
+    F(Resume,      lua_resume,      LUA_RESUME)       \
+    F(Yield,       lua_yield,       LUA_YIELD)        \
+    F(ArgError,    luaL_argerror,   LUAL_ARG_ERROR)   \
+    F(SetN,        luaL_setn,       LUAL_SETN)         \
+    F(CheckStack,  lua_checkstack,  LUA_CHECK_STACK)
 
 #define CLASSICAPI_BIND_LUA(Name, Typedef, Offset) \
     const Typedef##_t Name = reinterpret_cast<Typedef##_t>(Offsets::Offset);
@@ -186,20 +196,67 @@ void PushLocalizedString(void *L, const char *globalName, const char *fallback)
     }
 }
 
+// In-place `string.gsub(stack[-1], pattern, replacement)` — replaces
+// the string at the top of the stack with the substitution result.
+// Discards gsub's second return (the substitution count) by
+// requesting only one return from `Call`.
+static void GsubInPlace(void *L, const char *pattern, const char *replacement) {
+    PushString(L, "string");
+    GetTable(L, GLOBALS_INDEX);
+    PushString(L, "gsub");
+    GetTable(L, -2);             // [..., str, string, gsub]
+    Remove(L, -2);                // [..., str, gsub]
+    Insert(L, -2);                // [..., gsub, str]
+    PushString(L, pattern);
+    PushString(L, replacement);
+    Call(L, 3, 1);                // [..., result]
+}
+
 void PushLocalizedFormatInt(void *L, const char *globalName,
                             const char *fallback, int n) {
-    // Resolve `string.format` from _G. The engine ships it as both a
-    // global and as `string.format`; the global is faster (one
-    // gettable instead of two) and equally available across builds.
+    // Resolve `string.format` from _G.
     PushString(L, "format");
     GetTable(L, GLOBALS_INDEX);
-
     PushLocalizedString(L, globalName, fallback);
+
+    // Expand WoW's `|4singular:plural;` (and 3-form
+    // `|4nom:gen_sing:plural;`) pluralization template by piggybacking
+    // on Lua's `string.gsub`. The 2- vs 3-form distinction is locale
+    // grammar (Slavic counting has a separate genitive-singular form
+    // for 2..4); we collapse to nominative/plural since vanilla has
+    // no proper locale-aware counting rules. 3-form pattern runs
+    // first because it's more specific. Vanilla's `string.format`
+    // doesn't process `|4` natively, so without this the template
+    // would render literally.
+    const char *picker3 = (n == 1) ? "%1" : "%3";
+    const char *picker2 = (n == 1) ? "%1" : "%2";
+    GsubInPlace(L, "|4([^:;]+):([^:;]+):([^;]+);", picker3);
+    GsubInPlace(L, "|4([^:;]+):([^;]+);", picker2);
+
     PushNumber(L, static_cast<double>(n));
-    Call(L, 2, 1); // format(fmt, n) → string
+    Call(L, 2, 1);                // format(expandedFmt, n) → string
 }
 } // namespace Lua
 
+namespace Console {
+namespace {
+using RegisterCommand_t = int(__fastcall *)(const char *name, void *handler,
+                                            int category, const char *description);
+using Write_t = void(__fastcall *)(const char *line, int colorFlag);
+} // namespace
+
+void RegisterCommand(const char *name, CommandHandler handler, int category,
+                     const char *description) {
+    auto fn = reinterpret_cast<RegisterCommand_t>(Offsets::FUN_CONSOLE_COMMAND_REGISTER);
+    fn(name, reinterpret_cast<void *>(handler), category, description);
+}
+
+void Write(const char *line) {
+    auto fn = reinterpret_cast<Write_t>(Offsets::FUN_CONSOLE_WRITE);
+    fn(line, 0);
+}
+} // namespace Console
+
 namespace {
 ModuleAutoRegister *g_moduleHead = nullptr;
 GlueModuleAutoRegister *g_glueModuleHead = nullptr;

src/Game.h

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #pragma once
@@ -49,6 +49,8 @@ constexpr int TYPE_NUMBER = 3;
 constexpr int TYPE_STRING = 4;
 constexpr int TYPE_TABLE = 5;
 constexpr int TYPE_FUNCTION = 6;
+constexpr int TYPE_USERDATA = 7;
+constexpr int TYPE_THREAD = 8;
 
 using lua_isnumber_t = bool(__fastcall *)(void *L, int index);
 using lua_isstring_t = bool(__fastcall *)(void *L, int index);
@@ -76,7 +78,29 @@ using lua_call_t = void(__fastcall *)(void *L, int nargs, int nresults);
 using lua_pcall_t = int(__fastcall *)(void *L, int nargs, int nresults, int errfunc);
 using lua_next_t = int(__fastcall *)(void *L, int idx);
 using lua_type_t = int(__fastcall *)(void *L, int index);
-using lua_error_t = void(__cdecl *)(void *L, const char *);
+// The 1.12 `lua_error` wrapper at `0x6F4940` is actually variadic —
+// it does `lua_pushvfstring(L, fmt, args)` then prepends `luaL_where`
+// and throws. Existing callers pass a single literal (no `%`), which
+// is fine because cdecl tolerates extra-arg-less calls. New callers
+// forwarding user-supplied error strings should use `Error(L, "%s",
+// userMsg)` to avoid format-string interpretation of `%` in the
+// message body.
+using lua_error_t = void(__cdecl *)(void *L, const char *fmt, ...);
+using lua_topointer_t = const void *(__fastcall *)(void *L, int idx);
+using lua_tothread_t = void *(__fastcall *)(void *L, int idx);
+using lua_iscfunction_t = int(__fastcall *)(void *L, int idx);
+using lua_xmove_t = void(__fastcall *)(void *from, void *to, int n);
+// `lua_newthread` returns the new `lua_State *` in eax, but Ghidra
+// infers `void` because the inner call's value just flows through.
+// We declare the return type honestly here; callers that don't want
+// to rely on the calling convention preserving eax can read the
+// thread back from L's top via `ToPointer(L, -1)`.
+using lua_newthread_t = void *(__fastcall *)(void *L);
+using lua_resume_t = int(__fastcall *)(void *L, int nargs);
+using lua_yield_t = int(__fastcall *)(void *L, int nresults);
+using luaL_argerror_t = void(__fastcall *)(void *L, int narg, const char *msg);
+using luaL_setn_t = void(__fastcall *)(void *L, int t, int n);
+using lua_checkstack_t = int(__fastcall *)(void *L, int size);
 
 extern const lua_isnumber_t IsNumber;
 extern const lua_isstring_t IsString;
@@ -110,6 +134,16 @@ extern const lua_pcall_t PCall;
 extern const lua_next_t Next;
 extern const lua_type_t Type;
 extern const lua_error_t Error;
+extern const lua_topointer_t ToPointer;
+extern const lua_tothread_t ToThread;
+extern const lua_iscfunction_t IsCFunction;
+extern const lua_xmove_t XMove;
+extern const lua_newthread_t NewThread;
+extern const lua_resume_t Resume;
+extern const lua_yield_t Yield;
+extern const luaL_argerror_t ArgError;
+extern const luaL_setn_t SetN;
+extern const lua_checkstack_t CheckStack;
 
 // Returns the global `lua_State *` (read on demand from the engine's global).
 // Callable outside a Lua callback, e.g. during LoadScriptFunctions setup.
@@ -212,6 +246,50 @@ void PushLocalizedFormatInt(void *L, const char *globalName,
                             const char *fallback, int n);
 } // namespace Lua
 
+// Developer-console command system — the `~` console available when the
+// client is launched with `-console`. Vanilla maintains a
+// `TSExplicitList<CONSOLECOMMAND>`; these wrap the engine's registrar
+// and output paths. See the "Console commands & Interface file export"
+// section in CLAUDE.md for the underlying offsets and ABI.
+namespace Console {
+
+// Console-command handler ABI: `args` is the command-line text after
+// the command name (empty string when invoked bare). The engine
+// ignores the return value; return 1 by convention.
+using CommandHandler = int(__fastcall *)(void *unused, const char *args);
+
+// Help-grouping categories — the engine's `help` enumerates these nine
+// (in this order). Cosmetic: the value only affects which group `help`
+// lists the command under; the engine doesn't validate it. Values are
+// sequential table indices (graphics=1 confirmed via FUN_0066F6C0, the
+// rest follow the displayed order).
+enum Category {
+    CATEGORY_DEBUG = 0,
+    CATEGORY_GRAPHICS = 1,
+    CATEGORY_CONSOLE = 2,
+    CATEGORY_COMBAT = 3,
+    CATEGORY_GAME = 4,
+    CATEGORY_DEFAULT = 5,
+    CATEGORY_NET = 6,
+    CATEGORY_SOUND = 7,
+    CATEGORY_GM = 8,
+};
+
+// Registers a console command. `name` and `description` are stored BY
+// POINTER (the engine doesn't copy them), so pass string literals or
+// otherwise process-lifetime storage. Dedup-safe: re-registering the
+// same name is a harmless no-op, so it's fine to call from a hook that
+// fires more than once. Safe any time after engine boot — the command
+// table self-initializes on first use. `description` may be nullptr.
+void RegisterCommand(const char *name, CommandHandler handler, int category,
+                     const char *description);
+
+// Writes a line to the console output buffer. No-ops cleanly when the
+// console isn't active, so it's always safe to call.
+void Write(const char *line);
+
+} // namespace Console
+
 // Self-registration for API modules. Each module .cpp declares a file-scope
 // `static const Game::ModuleAutoRegister _r{&RegisterLuaFunctions};`, which
 // chains itself onto a global list at DLL-load time. `RunModuleRegistrations`

src/HookSecureFunc.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Game.h"

src/action/Info.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `GetActionInfo(slot)` — modern-WoW-style action descriptor lookup.

src/addons/Embedded.cpp

@@ -0,0 +1,379 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// Embedded `!!!ClassicAPI` addon fallback. When the user doesn't have
+// the addon installed on disk, this module makes the engine think it
+// does — without writing anything to the filesystem.
+//
+// How:
+//
+//   1. The CMake build embeds every file under `AddOns/!!!ClassicAPI/`
+//      into a generated header (`embedded_classicapi.h`) as a byte
+//      array per file plus a `{path, data, size}` manifest.
+//
+//   2. We hook the engine's file-read function at `FUN_FILE_READ`.
+//      When the engine asks for a path under
+//      `Interface\AddOns\!!!ClassicAPI\`, we allocate a Storm buffer
+//      via the same allocator the engine itself uses, copy the
+//      embedded content in, and hand it back. The caller's normal
+//      `SMemFree` reclaims it on completion — no special lifetime.
+//
+//   3. We post-hook the engine's `FUN_ADDON_INIT`. After the engine's
+//      own `Interface\AddOns\` scan finishes, we call the TOC parser
+//      directly with `"!!!ClassicAPI"`. The parser opens its TOC via
+//      our hooked read function and registers the addon as a normal
+//      entry. The TOC parser is dedup-safe: if the user already has
+//      the addon on disk, the engine's scan picked it up, the
+//      hash-table lookup hits, and our call is a no-op. So the
+//      conditional "only if not on disk" behavior is free.
+//
+// Same pattern WeirdUtils.dll uses (we reverse-engineered it from
+// `0x10015A74` while figuring this out). The addon load pass then
+// reads each `.lua` file through the same hooked read path —
+// `Compat.lua`, `Util\Print.lua`, etc. all surface from
+// embedded buffers.
+
+#include "embedded_classicapi.h"
+
+#include "Game.h"
+#include "Offsets.h"
+#include "bindings/Inject.h"
+
+#include <cstdint>
+#include <cstdio>
+#include <cstring>
+
+namespace Addons::Embedded {
+
+namespace {
+
+constexpr const char *kAddonName = "!!!ClassicAPI";
+constexpr const char *kAddonTocFile = "!!!ClassicAPI.toc";
+
+// `Interface\AddOns\!!!ClassicAPI\` — the prefix the engine
+// constructs for any of our addon's files. Comparing case-
+// insensitively because the TOC parser uses `Interface\AddOns\%s\…`
+// where %s comes from the on-disk directory name, and Windows file
+// paths are case-insensitive.
+constexpr const char *kAddonPathPrefix = "Interface\\AddOns\\!!!ClassicAPI\\";
+constexpr size_t kAddonPathPrefixLen = 30; // length of the literal above
+
+char NormalizeChar(char c) {
+    if (c == '/') return '\\';
+    if (c >= 'A' && c <= 'Z') return static_cast<char>(c + 32);
+    return c;
+}
+
+bool PathEqualsCI(const char *a, const char *b) {
+    while (*a && *b) {
+        if (NormalizeChar(*a) != NormalizeChar(*b)) return false;
+        ++a; ++b;
+    }
+    return *a == *b;
+}
+
+// Strip the `Interface\AddOns\!!!ClassicAPI\` prefix and return the
+// suffix (e.g. `Util\Print.lua`) on a match, NULL otherwise.
+const char *StripAddonPrefix(const char *path) {
+    if (path == nullptr) return nullptr;
+    const char *p = path;
+    const char *q = kAddonPathPrefix;
+    while (*q) {
+        if (*p == '\0') return nullptr;
+        if (NormalizeChar(*p) != NormalizeChar(*q)) return nullptr;
+        ++p; ++q;
+    }
+    return p;
+}
+
+const ClassicAPIFiles::File *LookupEmbedded(const char *suffix) {
+    for (size_t i = 0; i < ClassicAPIFiles::kFileCount; ++i) {
+        if (PathEqualsCI(suffix, ClassicAPIFiles::kFiles[i].path))
+            return &ClassicAPIFiles::kFiles[i];
+    }
+    return nullptr;
+}
+
+// Storm allocator — same one `FUN_FILE_READ` uses internally. Buffer
+// allocated here is freed cleanly by the caller's standard `SMemFree`
+// (`FUN_STORM_SMEM_FREE`). `__stdcall` per the function's `RET 0x10`
+// (4 args × 4 bytes = 16) epilogue.
+//   __stdcall void *SMemAlloc(size_t size, const char *file, int line, int flags)
+using SMemAlloc_t = void *(__stdcall *)(size_t size, const char *file, int line, int flags);
+
+// `FUN_FILE_READ` — same shape derived from the Octo decompile.
+// Calling convention is `__stdcall` (callee cleans 28 bytes via
+// `RET 0x1C`), not `__cdecl` — confirmed via the function epilogue.
+// Getting this wrong silently corrupts the caller's stack frame.
+//   __stdcall int FileRead(int unused, const char *path, void **outBuf,
+//                          size_t *outSize, size_t extraBytes,
+//                          int flag1, int flag2)
+using FileRead_t = int(__stdcall *)(int unused, const char *path, void **outBuf,
+                                    size_t *outSize, size_t extraBytes,
+                                    int flag1, int flag2);
+FileRead_t FileRead_o = nullptr;
+
+// Storm-allocator free. Used to release the disk-TOC buffer after we
+// scrape its version line — same path the engine itself uses when
+// `FileRead_o` succeeded and the caller's done with the result.
+//   __stdcall void SMemFree(void *buf, const char *file, int line, int flags)
+using SMemFree_t = void(__stdcall *)(void *buf, const char *file, int line, int flags);
+
+// Extracts the value of the `## Version: X` line from a TOC byte
+// buffer. Writes into `out` (size `outSize`) and returns true on
+// success. The TOC format is `## Key: Value`, one per line, case-
+// sensitive on the key. Returns false if no Version line is found.
+bool ExtractTocVersion(const char *content, size_t size,
+                       char *out, size_t outSize) {
+    static const char kKey[] = "## Version:";
+    constexpr size_t kKeyLen = sizeof(kKey) - 1;
+    for (size_t i = 0; i + kKeyLen <= size; ++i) {
+        const bool atLineStart = (i == 0) || content[i - 1] == '\n';
+        if (!atLineStart) continue;
+        if (std::memcmp(content + i, kKey, kKeyLen) != 0) continue;
+        const char *p = content + i + kKeyLen;
+        const char *end = content + size;
+        while (p < end && (*p == ' ' || *p == '\t')) ++p;
+        size_t j = 0;
+        while (p < end && *p != '\r' && *p != '\n' && j + 1 < outSize) {
+            out[j++] = *p++;
+        }
+        while (j > 0 && (out[j - 1] == ' ' || out[j - 1] == '\t')) --j;
+        out[j] = '\0';
+        return j > 0;
+    }
+    if (outSize > 0) out[0] = '\0';
+    return false;
+}
+
+// Returns -1/0/+1 for `a < b` / `a == b` / `a > b`. "DEV" is a
+// sentinel meaning "newer than any real release" — local dev builds
+// always win against installed-on-disk versions. Otherwise the two
+// strings are walked as dot-separated numeric semver components
+// (`1.2` < `1.10`).
+int CompareVersions(const char *a, const char *b) {
+    const bool aDev = std::strcmp(a, "DEV") == 0;
+    const bool bDev = std::strcmp(b, "DEV") == 0;
+    if (aDev && bDev) return 0;
+    if (aDev) return 1;
+    if (bDev) return -1;
+    while (*a || *b) {
+        int va = 0, vb = 0;
+        while (*a >= '0' && *a <= '9') { va = va * 10 + (*a - '0'); ++a; }
+        while (*b >= '0' && *b <= '9') { vb = vb * 10 + (*b - '0'); ++b; }
+        if (va != vb) return va < vb ? -1 : 1;
+        if (*a == '.') ++a;
+        if (*b == '.') ++b;
+        if (!*a && !*b) break;
+        if (!*a) return -1;
+        if (!*b) return 1;
+    }
+    return 0;
+}
+
+// Pre-extracted embedded TOC version, populated lazily on first
+// FileRead_h call under our prefix. Empty until populated.
+char g_embeddedVersion[64] = "";
+
+// Which source wins the embed-vs-disk comparison, decided once on
+// first relevant file read.
+enum class Source { Undecided, Disk, Embedded };
+Source g_source = Source::Undecided;
+
+void EnsureEmbeddedVersionExtracted() {
+    if (g_embeddedVersion[0] != '\0') return;
+    for (size_t i = 0; i < ClassicAPIFiles::kFileCount; ++i) {
+        if (PathEqualsCI(kAddonTocFile, ClassicAPIFiles::kFiles[i].path)) {
+            ExtractTocVersion(
+                reinterpret_cast<const char *>(ClassicAPIFiles::kFiles[i].data),
+                ClassicAPIFiles::kFiles[i].size,
+                g_embeddedVersion, sizeof(g_embeddedVersion));
+            return;
+        }
+    }
+}
+
+// Decide whether disk or embedded should serve all reads for this
+// addon. Called on the first FileRead_h call with a matching prefix.
+// Reads the on-disk TOC via the original `FUN_FILE_READ` (bypassing
+// our hook), parses its version, compares to the embedded version,
+// and caches the winner. If disk has no TOC at all, embedded wins by
+// default.
+void DecideSource() {
+    if (g_source != Source::Undecided) return;
+    EnsureEmbeddedVersionExtracted();
+
+    char fullPath[256];
+    std::snprintf(fullPath, sizeof(fullPath), "%s%s",
+                  kAddonPathPrefix, kAddonTocFile);
+
+    void *diskBuf = nullptr;
+    size_t diskSize = 0;
+    const int ok = FileRead_o(0, fullPath, &diskBuf, &diskSize, 1, 1, 0);
+    if (ok == 0 || diskBuf == nullptr) {
+        g_source = Source::Embedded;
+        return;
+    }
+
+    char diskVersion[64] = "";
+    ExtractTocVersion(static_cast<const char *>(diskBuf), diskSize,
+                      diskVersion, sizeof(diskVersion));
+
+    // Free the disk buffer we just borrowed — we only needed it for
+    // the version-line scrape. The actual content for the engine's
+    // TOC read comes through the regular hook path below.
+    auto SMemFree = reinterpret_cast<SMemFree_t>(Offsets::FUN_STORM_SMEM_FREE);
+    SMemFree(diskBuf, __FILE__, __LINE__, 0);
+
+    // Missing or unparseable disk version → assume it's older than
+    // anything we ship, embedded wins.
+    if (diskVersion[0] == '\0') {
+        g_source = Source::Embedded;
+        return;
+    }
+
+    const int cmp = CompareVersions(g_embeddedVersion, diskVersion);
+    g_source = (cmp > 0) ? Source::Embedded : Source::Disk;
+}
+
+int __stdcall FileRead_h(int unused, const char *path, void **outBuf,
+                         size_t *outSize, size_t extraBytes,
+                         int flag1, int flag2) {
+    // FrameXML Bindings.xml gets an inline splice for our TARGETING
+    // additions — see `bindings/Inject.cpp`. Returns true with the
+    // patched buffer ready for the engine's binding parser to consume.
+    if (Bindings::Inject::TryHandle(unused, path, outBuf, outSize,
+                                    extraBytes, flag1, flag2, FileRead_o)) {
+        return 1;
+    }
+
+    const char *suffix = StripAddonPrefix(path);
+    if (suffix == nullptr) {
+        // Path isn't under `Interface\AddOns\!!!ClassicAPI\` — straight
+        // pass-through, we don't care.
+        return FileRead_o(unused, path, outBuf, outSize, extraBytes,
+                          flag1, flag2);
+    }
+
+    DecideSource();
+
+    if (g_source == Source::Disk) {
+        // Disk version is at least as new — serve disk. If disk
+        // doesn't have this specific file (e.g. embedded has files
+        // disk doesn't), fall through and try embedded.
+        const int diskResult = FileRead_o(unused, path, outBuf, outSize,
+                                           extraBytes, flag1, flag2);
+        if (diskResult != 0) return diskResult;
+    }
+
+    // Source::Embedded path, OR Source::Disk-but-file-missing fallback.
+    // Look up the embedded version and synthesize a Storm buffer the
+    // caller can free normally.
+    const auto *entry = LookupEmbedded(suffix);
+    if (entry == nullptr) {
+        // Not in our embedded set either — let the engine try disk
+        // one more time (returns 0 if that also fails). Covers
+        // pathological cases like an empty disk install + embedded
+        // missing some file.
+        return FileRead_o(unused, path, outBuf, outSize, extraBytes,
+                          flag1, flag2);
+    }
+
+    auto SMemAlloc = reinterpret_cast<SMemAlloc_t>(
+        Offsets::FUN_STORM_SMEM_ALLOC);
+    const size_t totalSize = entry->size + extraBytes;
+    void *buf = SMemAlloc(totalSize, __FILE__, __LINE__, 0);
+    if (buf == nullptr) return 0;
+    std::memcpy(buf, entry->data, entry->size);
+    if (extraBytes > 0) {
+        std::memset(static_cast<uint8_t *>(buf) + entry->size, 0, extraBytes);
+    }
+    if (outBuf != nullptr) *outBuf = buf;
+    if (outSize != nullptr) *outSize = entry->size;
+    return 1;
+}
+
+// `FUN_ADDON_INIT` — `__fastcall(accountName)`. We post-hook it: let
+// the engine's normal `Interface\AddOns\` scan run first, then call
+// the TOC parser with `"!!!ClassicAPI"`. Dedup-safe — see file header.
+using AddonInit_t = void(__fastcall *)(const char *accountName);
+AddonInit_t AddonInit_o = nullptr;
+
+using TocParser_t = void(__fastcall *)(const char *name);
+using ListInsert_t = void(__thiscall *)(void *listCtrl, void *entry,
+                                         int position, int anchor);
+
+// `FUN_TOC_PARSER` appends new entries to the *tail* of the addon
+// registry's linked list, and the engine's addon-load pass at
+// `FUN_0051F600` walks that list in *insertion order* (NOT
+// alphabetical order — the alphabetical sort only applies to the
+// flat array `GetAddOnInfo(i)` reads from). So our post-hook
+// injection lands at the very end of the load order, after every
+// disk-scanned addon. Addons that consume our globals from their
+// main chunk (idTip's `FrameWatcher`, etc.) would see `nil` and
+// hard-error during their boot.
+//
+// Fix: walk the linked list, find our entry by name, and re-link
+// it to the head via `FUN_INTRUSIVE_LIST_INSERT(position=1)`. The
+// engine's own insert helper handles remove-then-insert atomically,
+// so it's safe to call on an entry that's already in the list.
+//
+// Entries are pointed to by `[VAR_ADDON_LIST_HEAD]` (`0x00BE1B6C`),
+// with the next-pointer field at `entry + 0x10` (computed as
+// `*(value-at-VAR_ADDON_LIST_CTRL) + entry + 4` = `0xC + entry + 4`
+// = `entry + 0x10`). Low-bit-1 means "sentinel" (end of list).
+// Name pointer lives at `entry + 0x14`.
+constexpr uintptr_t VAR_ADDON_LIST_HEAD = 0x00BE1B6C;
+constexpr int OFF_ADDON_ENTRY_NAME_PTR = 0x14;
+
+void MoveEmbeddedToListHead() {
+    uintptr_t entry = *reinterpret_cast<uintptr_t *>(VAR_ADDON_LIST_HEAD);
+    const int linkOffset = *reinterpret_cast<const int *>(
+        static_cast<uintptr_t>(Offsets::VAR_ADDON_LIST_CTRL));
+    while ((entry & 1) == 0 && entry != 0) {
+        const char *name = *reinterpret_cast<const char *const *>(
+            entry + OFF_ADDON_ENTRY_NAME_PTR);
+        if (name != nullptr && std::strcmp(name, kAddonName) == 0) {
+            auto fn = reinterpret_cast<ListInsert_t>(
+                Offsets::FUN_INTRUSIVE_LIST_INSERT);
+            fn(reinterpret_cast<void *>(
+                   static_cast<uintptr_t>(Offsets::VAR_ADDON_LIST_CTRL)),
+               reinterpret_cast<void *>(entry),
+               /*position=*/ 1, /*anchor=*/ 0);
+            return;
+        }
+        entry = *reinterpret_cast<const uintptr_t *>(
+            entry + linkOffset + 4);
+    }
+}
+
+void __fastcall AddonInit_h(const char *accountName) {
+    AddonInit_o(accountName);
+    auto TocParser = reinterpret_cast<TocParser_t>(Offsets::FUN_TOC_PARSER);
+    TocParser(kAddonName);
+    MoveEmbeddedToListHead();
+}
+
+const Game::HookAutoRegister _hookFileRead{
+    Offsets::FUN_FILE_READ,
+    reinterpret_cast<void *>(&FileRead_h),
+    reinterpret_cast<void **>(&FileRead_o)};
+
+const Game::HookAutoRegister _hookAddonInit{
+    Offsets::FUN_ADDON_INIT,
+    reinterpret_cast<void *>(&AddonInit_h),
+    reinterpret_cast<void **>(&AddonInit_o)};
+
+} // namespace
+
+} // namespace Addons::Embedded

src/addons/Info.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_AddOns.*` convenience wrappers. Modern WoW splits the legacy
@@ -41,6 +41,11 @@ using CanLoadFn_t = uint8_t(__fastcall *)(const uint8_t *entry, char fullCheck,
                                           int *outStatus, int *outDepHandle,
                                           const char *accountName);
 using GetAccountName_t = const char *(*)();
+// Hash-lookup by name → the matched record's RequiredDeps descriptor
+// (`record + 0x48`), NULL on miss. Accepts an entry pointer too (its
+// first bytes are the inline name). We use it only to recover the
+// record base for string input; see `Script_GetAddOnOptionalDependencies`.
+using ResolveReqDeps_t = uint8_t *(__fastcall *)(const char *nameOrEntry);
 
 // Resolves the user's arg to a `const uint8_t *` that the engine's
 // per-field accessors can consume. They all read the addon name as
@@ -115,13 +120,24 @@ int PushFieldOrNil(void *L, FieldByName_t accessor) {
 // `C_AddOns.GetAddOnName(indexOrName)` — the addon's directory name.
 // For numeric input, returns the engine's canonical casing. For
 // string input, returns the input verbatim once existence is
-// confirmed.
+// confirmed; nil for an unregistered name.
+//
+// String-input existence isn't free: `ResolveAddOnName` echoes the
+// string for the field accessors below (`GetAddOnTitle`, etc.) which
+// short-circuit cleanly on unknown names via the engine's own NULL-
+// return paths. `GetAddOnName` doesn't call any engine accessor, so
+// it'd otherwise echo any string. Probe the registry explicitly.
 int __fastcall Script_GetAddOnName(void *L) {
     const uint8_t *entry = ResolveAddOnName(L);
     if (entry == nullptr) {
         Game::Lua::PushNil(L);
         return 1;
     }
+    if (Game::Lua::Type(L, 1) == Game::Lua::TYPE_STRING &&
+        !AddOnExistsByName(reinterpret_cast<const char *>(entry))) {
+        Game::Lua::PushNil(L);
+        return 1;
+    }
     Game::Lua::PushString(L, reinterpret_cast<const char *>(entry));
     return 1;
 }
@@ -163,9 +179,13 @@ int __fastcall Script_IsAddOnLoadable(void *L) {
         return 2;
     }
 
-    auto isLoD = reinterpret_cast<EntryByteFn_t>(
-        Offsets::FUN_ADDON_IS_LOAD_ON_DEMAND);
-    if (isLoD(entry) != 0) {
+    // Already-loaded addons are trivially loadable — skip the
+    // recursive dep walk and return (true, nil) directly. `IS_LOADED`
+    // reads the byte at `entry+0x18` (the loader sets that to 1 on
+    // successful load).
+    auto isLoaded = reinterpret_cast<EntryByteFn_t>(
+        Offsets::FUN_ADDON_IS_LOADED);
+    if (isLoaded(entry) != 0) {
         Game::Lua::PushBoolean(L, 1);
         Game::Lua::PushNil(L);
         return 2;
@@ -229,6 +249,36 @@ int __fastcall Script_GetAddOnSecurity(void *L) {
     return 1;
 }
 
+// `C_AddOns.IsAddOnLoaded(indexOrName)` → `(loadedOrLoading, loaded)`.
+//
+// Modern WoW distinguishes "load-in-progress" from "fully loaded" —
+// matters for LoD addons whose load is split across multiple
+// `LoadAddOn` callbacks. Vanilla 1.12's `FUN_0051F240` is fully
+// synchronous: the loaded byte at `entry+0x18` flips from 0 → 1
+// inside a single call, so the "loading" state is never observable
+// from Lua. We return the same boolean twice — `loadedOrLoading`
+// and `loaded` are identical here.
+//
+// Resolves both numeric indices (via `FUN_ADDON_GET_BY_INDEX`) and
+// string names. `IS_LOADED` accepts an entry pointer as its name arg
+// because the entry's first 12 bytes are the inline NUL-terminated
+// directory name (same as the other per-field accessors), so we can
+// feed it either an entry or a Lua-side string transparently.
+int __fastcall Script_IsAddOnLoaded(void *L) {
+    const uint8_t *entry = ResolveAddOnName(L);
+    if (entry == nullptr) {
+        Game::Lua::PushBool(L, false);
+        Game::Lua::PushBool(L, false);
+        return 2;
+    }
+    auto isLoaded = reinterpret_cast<EntryByteFn_t>(
+        Offsets::FUN_ADDON_IS_LOADED);
+    const bool loaded = isLoaded(entry) != 0;
+    Game::Lua::PushBool(L, loaded);
+    Game::Lua::PushBool(L, loaded);
+    return 2;
+}
+
 // `C_AddOns.DoesAddOnExist(indexOrName)` — true iff the engine's
 // addon registry has a matching entry. For numeric input we trust
 // `GetByIndex`'s OOR-NULL; for string input we walk the flat array,
@@ -250,6 +300,63 @@ int __fastcall Script_DoesAddOnExist(void *L) {
     return 1;
 }
 
+// `C_AddOns.GetAddOnOptionalDependencies(indexOrName)` — the addon's
+// `## OptionalDeps:` names as multiple return values, in declared order.
+// The exact shape of the stock `GetAddOnDependencies`, but reading the
+// *optional* dep array instead of the required one. No optional deps →
+// returns nothing.
+//
+// Vanilla parses `## OptionalDeps:` in the TOC parser `FUN_0051c9b0`
+// into a `{cap, count, data, quantum}` name-array descriptor at
+// `record+0x38` (count@+0x3C, data@+0x40), but ships no getter for it.
+//
+// Arg/error handling mirrors stock `Script_GetAddOnDependencies`
+// (`0x0048E5E0`): numeric out-of-range or a non-string/non-number arg
+// raises the usage error; an unknown *name* string returns nothing
+// (no error), matching the engine's own not-found path.
+//
+// Resolution mirrors stock `Script_GetAddOnDependencies` exactly: the
+// arg is first turned into a name-usable pointer (`ResolveAddOnName` —
+// numeric via `FUN_ADDON_GET_BY_INDEX`, string is the raw string), then
+// routed through the by-name hash lookup `FUN_ADDON_RESOLVE_REQ_DEPS`
+// to reach the deps-bearing record. `FUN_ADDON_GET_BY_INDEX` returns a
+// *name pointer*, NOT the record — reading dep offsets off it lands in
+// string memory and crashes (a numeric-path caller like pfUI's addon
+// list hit exactly that). The resolver returns the RequiredDeps
+// descriptor at `record+0x48`; subtract to recover the base. An unknown
+// name yields NULL → return nothing (no error), like stock.
+int __fastcall Script_GetAddOnOptionalDependencies(void *L) {
+    static constexpr const char *kUsage =
+        "Usage: C_AddOns.GetAddOnOptionalDependencies(index or \"name\")";
+
+    // NULL ⇒ out-of-range numeric index or a non-string/non-number arg;
+    // stock raises the usage error in both cases.
+    const uint8_t *nameOrEntry = ResolveAddOnName(L);
+    if (nameOrEntry == nullptr) {
+        Game::Lua::Error(L, "%s", kUsage);
+        return 0;
+    }
+
+    auto resolve = reinterpret_cast<ResolveReqDeps_t>(
+        Offsets::FUN_ADDON_RESOLVE_REQ_DEPS);
+    uint8_t *reqDesc = resolve(reinterpret_cast<const char *>(nameOrEntry));
+    if (reqDesc == nullptr)
+        return 0; // unknown addon name — no error, push nothing
+    const uint8_t *record = reqDesc - Offsets::OFF_ADDON_REQDEPS_DESC;
+
+    const uint32_t count = *reinterpret_cast<const uint32_t *>(
+        record + Offsets::OFF_ADDON_OPTIONALDEPS_COUNT);
+    if (count == 0)
+        return 0;
+    auto names = *reinterpret_cast<const char *const *const *>(
+        record + Offsets::OFF_ADDON_OPTIONALDEPS_ARRAY);
+    if (names == nullptr)
+        return 0;
+    for (uint32_t i = 0; i < count; ++i)
+        Game::Lua::PushString(L, names[i]); // NULL → pushnil, per engine
+    return static_cast<int>(count);
+}
+
 // `Enum.AddOnSecurityStatus` — what `C_AddOns.GetAddOnSecurity`
 // returns. Slots 0..2 match the engine's own ordering at
 // `VAR_ADDON_SECURITY_TABLE`; slot 3 is our addition for
@@ -276,6 +383,10 @@ static void RegisterLuaFunctions() {
                                      &Script_GetAddOnSecurity);
     Game::Lua::RegisterTableFunction("C_AddOns", "DoesAddOnExist",
                                      &Script_DoesAddOnExist);
+    Game::Lua::RegisterTableFunction("C_AddOns", "IsAddOnLoaded",
+                                     &Script_IsAddOnLoaded);
+    Game::Lua::RegisterTableFunction("C_AddOns", "GetAddOnOptionalDependencies",
+                                     &Script_GetAddOnOptionalDependencies);
     Game::Lua::RegisterIntegerEnum(
         "Enum", "AddOnSecurityStatus",
         kAddOnSecurityStatusEntries,

src/api/Version.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `CLASSIC_API_VERSION` global — a single integer addons can read for

src/auctionhouse/PostItem.cpp

@@ -0,0 +1,427 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_AuctionHouse.PostItem(itemLocation, duration, quantity, numStacks, bid,
+// buyout)` — post `numStacks` auctions of `quantity` each from a single
+// source stack, in one call. A ClassicAPI extension modelled on the retail
+// multi-sell flow; vanilla's `StartAuction` posts exactly one item object.
+//
+// Why this is a tick-driven state machine (not a synchronous loop):
+// vanilla's `CMSG_AUCTION_SELL_ITEM` (opcode 0x256) is
+// `{ auctioneerGuid, itemGuid, bid, buyout, runTime }` — NO count field
+// (WotLK added the server-side count; 1.12 has none, verified from
+// `Script_StartAuction`). So the server posts the *entire* item object a
+// GUID points at. To post a partial `quantity` out of a larger source, the
+// client must first materialize that quantity as its own server-committed
+// item object — i.e. split it into a bag slot (`CMSG_SPLIT_ITEM`) — and both
+// the split and the resulting post are server-authoritative and async (the
+// new stack's GUID doesn't exist client-side until `SMSG_UPDATE_OBJECT`
+// lands). We drive the split→post→split→post sequence off `WorldTick`,
+// keying each transition on observed bag state.
+//
+// Free-slot cost: a partial post needs at most ONE reused general-bag slot
+// (split `quantity` off → post that stack → the post empties the slot →
+// reuse it for the next split). The final stack (once the source is whittled
+// to exactly `quantity`) posts the source object directly, no split. Posting
+// a whole existing stack (`quantity` == the source count) needs zero free
+// slots.
+//
+// Posting reuses the engine's `Script_StartAuction` verbatim (write the
+// target stack's GUID into the sell-slot globals, push bid/buyout/runTime,
+// call it) so all of its validation runs per stack — damaged-item reject,
+// buyout normalization, runTime table check, auctioneer/"AH open" check.
+//
+// Events (retail multi-sell names, fired via Event::Custom):
+//   AUCTION_MULTISELL_START               — job accepted, posting begins
+//   AUCTION_MULTISELL_UPDATE(done, total) — after each stack lands
+//   AUCTION_MULTISELL_FAILURE             — aborted (source changed, no slot,
+//                                           AH closed, or a step timed out)
+//
+// Limitations (v1): source is the single stack at `itemLocation` (not
+// aggregated across bags); temp splits use general-purpose bags only, so
+// family-restricted items (arrows/shards in specialty bags) aren't
+// supported; one job at a time.
+
+#include "Game.h"
+#include "Offsets.h"
+#include "event/Custom.h"
+#include "item/ID.h"
+#include "item/Location.h"
+#include "item/Swap.h"
+#include "tick/WorldTick.h"
+
+#include <cstdint>
+
+namespace AuctionHouse::PostItem {
+
+namespace {
+
+constexpr const char *kEvtStart = "AUCTION_MULTISELL_START";
+constexpr const char *kEvtUpdate = "AUCTION_MULTISELL_UPDATE";
+constexpr const char *kEvtFailure = "AUCTION_MULTISELL_FAILURE";
+const Event::Custom::AutoReserve _r1{kEvtStart};
+const Event::Custom::AutoReserve _r2{kEvtUpdate};
+const Event::Custom::AutoReserve _r3{kEvtFailure};
+
+// Generous per-step abort bound. A split or a post is one server round-trip
+// (~tens of frames); 600 frames (~10s at 60fps) means "something's wrong"
+// (disconnect, server refusal we can't see) rather than normal latency.
+constexpr int kMaxWaitTicks = 600;
+
+enum class Phase { Idle, SplitWait, PostWait };
+
+struct Job {
+    bool active;
+    int srcBag, srcSlot; // source stack (shrinks in place as we split off it)
+    int itemID;          // guards against the source slot changing under us
+    int quantity;
+    int totalStacks;
+    int postedStacks;
+    int bid, buyout, runTime;
+    Phase phase;
+    int workBag, workSlot; // slot currently being split-into / posted-from
+    uint64_t postGuid;     // GUID we posted — detect it leaving bags
+    int waitTicks;
+};
+Job g_job{};
+
+// --- small CGItem / cache readers ---------------------------------------
+
+using GetItemRecord_t = const uint8_t *(__thiscall *)(void *cache, uint32_t itemID,
+                                                      const uint64_t *guid, void *callback,
+                                                      void *userData, int unused);
+const uint8_t *PeekItemRecord(uint32_t itemID) {
+    auto fn = reinterpret_cast<GetItemRecord_t>(Offsets::FUN_DBCACHE_ITEMSTATS_GET_RECORD);
+    auto *cache = reinterpret_cast<void *>(Offsets::VAR_ITEMDB_CACHE);
+    const uint64_t zeroGuid = 0;
+    return fn(cache, itemID, &zeroGuid, nullptr, nullptr, 0);
+}
+
+int CGItemCount(const uint8_t *item) {
+    auto *desc = *reinterpret_cast<const uint8_t *const *>(
+        item + Offsets::OFF_ITEM_DESCRIPTOR);
+    if (desc == nullptr)
+        return 0;
+    return *reinterpret_cast<const int *>(desc + Offsets::OFF_DESCRIPTOR_STACK_COUNT);
+}
+
+uint64_t CGItemGuid(const uint8_t *item) {
+    auto *inst = *reinterpret_cast<const uint8_t *const *>(
+        item + Offsets::OFF_ITEM_INSTANCE_BLOCK);
+    if (inst == nullptr)
+        return 0;
+    return *reinterpret_cast<const uint64_t *>(inst + Offsets::OFF_INSTANCE_BLOCK_GUID);
+}
+
+struct SlotInfo {
+    const uint8_t *item; // null = empty slot
+    int itemID;
+    int count;
+    uint64_t guid;
+};
+
+SlotInfo ReadSlot(void *L, int bag, int slot) {
+    SlotInfo r{nullptr, 0, 0, 0};
+    const uint8_t *item = Item::Location::ResolveBag(L, bag, slot);
+    if (item == nullptr)
+        return r;
+    r.item = item;
+    r.itemID = Item::ID::FromCGItem(item);
+    r.count = CGItemCount(item);
+    r.guid = CGItemGuid(item);
+    return r;
+}
+
+// --- auction-house globals ----------------------------------------------
+
+uint64_t AuctioneerGuid() {
+    const uint32_t lo = *reinterpret_cast<const uint32_t *>(
+        Offsets::VAR_AUCTION_AUCTIONEER_GUID_LO);
+    const uint32_t hi = *reinterpret_cast<const uint32_t *>(
+        Offsets::VAR_AUCTION_AUCTIONEER_GUID_HI);
+    return (static_cast<uint64_t>(hi) << 32) | lo;
+}
+bool AHOpen() { return AuctioneerGuid() != 0; }
+
+void SetSellGuid(uint64_t guid) {
+    *reinterpret_cast<uint32_t *>(Offsets::VAR_AUCTION_SELL_GUID_LO) =
+        static_cast<uint32_t>(guid);
+    *reinterpret_cast<uint32_t *>(Offsets::VAR_AUCTION_SELL_GUID_HI) =
+        static_cast<uint32_t>(guid >> 32);
+}
+
+// Point the sell slot at `guid` and fire the engine's own StartAuction for
+// this bid/buyout/runTime. StartAuction reads its args from L[1..3]; we own
+// the stack at frame-tail, so set top to 0, push the three, call, reset.
+void PostStack(void *L, uint64_t guid) {
+    SetSellGuid(guid);
+    Game::Lua::SetTop(L, 0);
+    Game::Lua::PushNumber(L, static_cast<double>(g_job.bid));
+    Game::Lua::PushNumber(L, static_cast<double>(g_job.buyout));
+    Game::Lua::PushNumber(L, static_cast<double>(g_job.runTime));
+    auto fn = reinterpret_cast<Game::Lua::CFunction>(Offsets::FUN_SCRIPT_START_AUCTION);
+    fn(L);
+    Game::Lua::SetTop(L, 0);
+}
+
+// --- free-slot discovery (general-purpose bags only) --------------------
+
+bool BagIsGeneral(int bag) {
+    if (bag == 0)
+        return true; // backpack is always general
+    if (bag < 1 || bag > 4)
+        return false;
+    const uint8_t *bagItem =
+        Item::Location::ResolveEquipmentSlot(Offsets::INVSLOT_BAG1 + bag - 1);
+    if (bagItem == nullptr)
+        return false; // no bag equipped there
+    const int id = Item::ID::FromCGItem(bagItem);
+    if (id == 0)
+        return false;
+    const uint8_t *rec = PeekItemRecord(static_cast<uint32_t>(id));
+    if (rec == nullptr)
+        return false;
+    return *reinterpret_cast<const uint32_t *>(
+               rec + Offsets::OFF_ITEMSTATS_BAG_FAMILY) == 0;
+}
+
+bool FindFreeGeneralSlot(void *L, int *outBag, int *outSlot) {
+    for (int bag = 0; bag <= 4; ++bag) {
+        if (!BagIsGeneral(bag))
+            continue;
+        const int n = Item::Location::GetBagSlotCount(bag);
+        for (int slot = 1; slot <= n; ++slot) {
+            if (Item::Location::ResolveBag(L, bag, slot) == nullptr) {
+                *outBag = bag;
+                *outSlot = slot;
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+// --- state machine ------------------------------------------------------
+
+void Finish(bool success) {
+    g_job.active = false;
+    if (!success)
+        Event::Custom::Fire(Event::Custom::Lookup(kEvtFailure), "");
+    // success needs no event: the last PostWait already fired
+    // AUCTION_MULTISELL_UPDATE(total, total).
+}
+
+void Tick() {
+    if (!g_job.active)
+        return;
+    void *L = Game::Lua::State();
+    if (L == nullptr)
+        return;
+    const int savedTop = Game::Lua::GetTop(L);
+
+    if (!AHOpen()) { // window closed / walked away mid-job
+        Finish(false);
+        Game::Lua::SetTop(L, savedTop);
+        return;
+    }
+
+    switch (g_job.phase) {
+    case Phase::Idle: {
+        if (g_job.postedStacks >= g_job.totalStacks) {
+            Finish(true);
+            break;
+        }
+        const SlotInfo s = ReadSlot(L, g_job.srcBag, g_job.srcSlot);
+        if (s.item == nullptr || s.itemID != g_job.itemID || s.count < g_job.quantity) {
+            Finish(false); // source moved / consumed / insufficient
+            break;
+        }
+        if (s.count == g_job.quantity) {
+            // Final exact stack — post the source object directly, no split.
+            g_job.workBag = g_job.srcBag;
+            g_job.workSlot = g_job.srcSlot;
+            g_job.postGuid = s.guid;
+            PostStack(L, s.guid);
+            g_job.phase = Phase::PostWait;
+            g_job.waitTicks = 0;
+        } else {
+            int fb = 0, fs = 0;
+            if (!FindFreeGeneralSlot(L, &fb, &fs)) {
+                Finish(false); // no room to materialize the stack
+                break;
+            }
+            if (!Item::Swap::MoveCount(L, g_job.srcBag, g_job.srcSlot, fb, fs,
+                                       g_job.quantity)) {
+                Finish(false);
+                break;
+            }
+            g_job.workBag = fb;
+            g_job.workSlot = fs;
+            g_job.phase = Phase::SplitWait;
+            g_job.waitTicks = 0;
+        }
+        break;
+    }
+    case Phase::SplitWait: {
+        const SlotInfo w = ReadSlot(L, g_job.workBag, g_job.workSlot);
+        if (w.item != nullptr && w.itemID == g_job.itemID && w.count == g_job.quantity) {
+            g_job.postGuid = w.guid;
+            PostStack(L, w.guid);
+            g_job.phase = Phase::PostWait;
+            g_job.waitTicks = 0;
+        } else if (++g_job.waitTicks > kMaxWaitTicks) {
+            Finish(false);
+        }
+        break;
+    }
+    case Phase::PostWait: {
+        const SlotInfo w = ReadSlot(L, g_job.workBag, g_job.workSlot);
+        // Post confirmed once the server pulls the item out of the slot.
+        if (w.item == nullptr || w.guid != g_job.postGuid) {
+            ++g_job.postedStacks;
+            Event::Custom::Fire(Event::Custom::Lookup(kEvtUpdate), "%d%d",
+                                g_job.postedStacks, g_job.totalStacks);
+            g_job.phase = Phase::Idle;
+            g_job.waitTicks = 0;
+        } else if (++g_job.waitTicks > kMaxWaitTicks) {
+            Finish(false);
+        }
+        break;
+    }
+    }
+
+    Game::Lua::SetTop(L, savedTop);
+}
+
+const Tick::WorldTick::AutoSubscribe _tick{&Tick};
+
+// --- Lua entry ----------------------------------------------------------
+
+// Reads `loc.field` as an int. False if missing/non-numeric. Leaves the
+// stack as found. (Same shape as Item::Location's file-static helper.)
+bool ReadIntField(void *L, int locIdx, const char *field, int *out) {
+    Game::Lua::PushString(L, field);
+    Game::Lua::GetTable(L, locIdx);
+    const bool ok = Game::Lua::IsNumber(L, -1);
+    if (ok)
+        *out = static_cast<int>(Game::Lua::ToNumber(L, -1));
+    Game::Lua::SetTop(L, -2);
+    return ok;
+}
+
+// Map the modern `duration` arg to a valid engine runTime (minutes).
+// Accepts the 1/2/3 index form and the raw {120,480,1440} value form.
+// Returns 0 for anything else.
+int MapDuration(int d) {
+    auto *table = reinterpret_cast<const uint32_t *>(Offsets::VAR_AUCTION_DURATION_TABLE);
+    if (d >= 1 && d <= Offsets::AUCTION_DURATION_TABLE_COUNT)
+        return static_cast<int>(table[d - 1]);
+    for (int i = 0; i < Offsets::AUCTION_DURATION_TABLE_COUNT; ++i)
+        if (static_cast<int>(table[i]) == d)
+            return d;
+    return 0;
+}
+
+// Push (false, reason) and return 2 — the immediate-rejection shape.
+int Reject(void *L, const char *reason) {
+    Game::Lua::PushBool(L, false);
+    Game::Lua::PushString(L, reason);
+    return 2;
+}
+
+constexpr int kLuaTable = 5; // LUA_TTABLE (no named constant in Game::Lua)
+
+int __fastcall Script_C_AuctionHouse_PostItem(void *L) {
+    if (Game::Lua::Type(L, 1) != kLuaTable) {
+        Game::Lua::Error(L,
+            "Usage: C_AuctionHouse.PostItem(itemLocation, duration, quantity, numStacks, bid, buyout)");
+        return 0;
+    }
+    if (!Game::Lua::IsNumber(L, 2) || !Game::Lua::IsNumber(L, 3) ||
+        !Game::Lua::IsNumber(L, 4) || !Game::Lua::IsNumber(L, 5)) {
+        Game::Lua::Error(L,
+            "Usage: C_AuctionHouse.PostItem(itemLocation, duration, quantity, numStacks, bid, buyout)");
+        return 0;
+    }
+
+    int bagID = 0, slotIndex = 0;
+    if (!ReadIntField(L, 1, "bagID", &bagID) ||
+        !ReadIntField(L, 1, "slotIndex", &slotIndex))
+        return Reject(L, "itemLocation must be a { bagID, slotIndex } table");
+
+    const int duration = static_cast<int>(Game::Lua::ToNumber(L, 2));
+    const int quantity = static_cast<int>(Game::Lua::ToNumber(L, 3));
+    const int numStacks = static_cast<int>(Game::Lua::ToNumber(L, 4));
+    const int bid = static_cast<int>(Game::Lua::ToNumber(L, 5));
+    const int buyout = Game::Lua::IsNumber(L, 6) ? static_cast<int>(Game::Lua::ToNumber(L, 6)) : 0;
+
+    const int runTime = MapDuration(duration);
+    if (runTime == 0)
+        return Reject(L, "invalid duration (use 1/2/3 or 120/480/1440)");
+    if (quantity < 1 || quantity > 255)
+        return Reject(L, "quantity must be 1..255");
+    if (numStacks < 1)
+        return Reject(L, "numStacks must be >= 1");
+    if (bid < 1)
+        return Reject(L, "bid must be >= 1");
+
+    if (!AHOpen())
+        return Reject(L, "auction house is not open");
+    if (g_job.active)
+        return Reject(L, "a multi-post is already in progress");
+
+    const SlotInfo s = ReadSlot(L, bagID, slotIndex);
+    if (s.item == nullptr)
+        return Reject(L, "source slot is empty");
+
+    const long need = static_cast<long>(quantity) * numStacks;
+    if (static_cast<long>(s.count) < need)
+        return Reject(L, "not enough items for numStacks x quantity");
+
+    // A partial post (source larger than one stack) needs one reusable
+    // general-bag slot to materialize each split. A whole-stack post
+    // (count == quantity, numStacks == 1) needs none.
+    if (s.count > quantity) {
+        int fb = 0, fs = 0;
+        if (!FindFreeGeneralSlot(L, &fb, &fs))
+            return Reject(L, "need at least one free general bag slot to split");
+    }
+
+    g_job = Job{};
+    g_job.active = true;
+    g_job.srcBag = bagID;
+    g_job.srcSlot = slotIndex;
+    g_job.itemID = s.itemID;
+    g_job.quantity = quantity;
+    g_job.totalStacks = numStacks;
+    g_job.postedStacks = 0;
+    g_job.bid = bid;
+    g_job.buyout = buyout;
+    g_job.runTime = runTime;
+    g_job.phase = Phase::Idle;
+
+    Event::Custom::Fire(Event::Custom::Lookup(kEvtStart), "");
+    Game::Lua::PushBool(L, true);
+    return 1;
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_AuctionHouse", "PostItem",
+                                     &Script_C_AuctionHouse_PostItem);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+} // namespace AuctionHouse::PostItem

src/aura/Api.cpp

@@ -1,12 +1,12 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 
 // `C_UnitAuras.*` — modern aura-data namespace. Returns AuraData
 // tables built by `Aura::Data::Push` (see `Data.h`). The fields the
@@ -60,6 +60,13 @@ Data::Filter ParseFilter(const char *filter) {
     return Data::Filter::Helpful;
 }
 
+// The `PLAYER` filter token restricts results to auras the local player
+// cast. No other modern token contains the substring "PLAYER", so a plain
+// substring test is safe.
+bool HasPlayerFilter(const char *filter) {
+    return filter != nullptr && strstr(filter, "PLAYER") != nullptr;
+}
+
 const char *ArgUnit(void *L, int idx) {
     if (!Game::Lua::IsString(L, idx))
         return nullptr;
@@ -82,14 +89,19 @@ const char *ArgOptString(void *L, int idx) {
 // or nil if no such aura. Used by `GetAuraDataByIndex` and the
 // filter-locked aliases.
 int PushAuraByIndex(void *L, const char *unitToken, int index,
-                    Data::Filter filter) {
+                    Data::Filter filter, bool playerOnly = false) {
     const uint8_t *unit = ResolveUnit(unitToken);
-    const int slot = Data::FindNthSlot(unit, index, filter);
-    if (slot < 0) {
-        Game::Lua::PushNil(L);
+    const int slot = Data::FindNthSlot(unit, index, filter, playerOnly);
+    if (slot >= 0) {
+        Data::Push(L, unit, slot);
         return 1;
     }
-    Data::Push(L, unit, slot);
+    // Descriptor exhausted — an aura the engine dropped from the slot array
+    // (rogue stealth, party range fluctuation) may still be live in the
+    // Aura::Source cache. Surface it after the descriptor entries.
+    if (Data::PushNthCacheFallback(L, unit, index, filter, playerOnly))
+        return 1;
+    Game::Lua::PushNil(L);
     return 1;
 }
 
@@ -101,7 +113,8 @@ int __fastcall Script_GetAuraDataByIndex(void *L) {
         Game::Lua::PushNil(L);
         return 1;
     }
-    return PushAuraByIndex(L, unit, index, ParseFilter(filterStr));
+    return PushAuraByIndex(L, unit, index, ParseFilter(filterStr),
+                           HasPlayerFilter(filterStr));
 }
 
 int __fastcall Script_GetBuffDataByIndex(void *L) {
@@ -139,7 +152,8 @@ int __fastcall Script_GetUnitAuraBySpellID(void *L) {
         f = ParseFilter(filterStr);
         fp = &f;
     }
-    const int slot = Data::FindSlotBySpellID(unit, static_cast<uint32_t>(spellID), fp);
+    const int slot = Data::FindSlotBySpellID(unit, static_cast<uint32_t>(spellID),
+                                             fp, HasPlayerFilter(filterStr));
     if (slot < 0) {
         Game::Lua::PushNil(L);
         return 1;
@@ -163,7 +177,8 @@ int __fastcall Script_GetAuraDataBySpellName(void *L) {
         f = ParseFilter(filterStr);
         fp = &f;
     }
-    const int slot = Data::FindSlotBySpellName(unit, spellName, fp);
+    const int slot = Data::FindSlotBySpellName(unit, spellName, fp,
+                                               HasPlayerFilter(filterStr));
     if (slot < 0) {
         Game::Lua::PushNil(L);
         return 1;
@@ -192,7 +207,7 @@ int __fastcall Script_GetPlayerAuraBySpellID(void *L) {
 // sequential keys starting from `nextKey`. Updates `nextKey` so a
 // follow-up call can append to the same outer table.
 void AppendRangeToArray(void *L, const uint8_t *unit, int outerIdx,
-                       Data::Filter filter, int &nextKey) {
+                       Data::Filter filter, int &nextKey, bool playerOnly) {
     const int start = (filter == Data::Filter::Harmful)
                           ? Offsets::UNIT_AURA_BUFF_COUNT
                           : 0;
@@ -202,10 +217,14 @@ void AppendRangeToArray(void *L, const uint8_t *unit, int outerIdx,
     for (int slot = start; slot < end; ++slot) {
         if (!Data::IsSlotPopulated(unit, slot))
             continue;
+        if (playerOnly && !Data::IsPlayerCast(unit, slot))
+            continue;
         Game::Lua::PushNumber(L, static_cast<double>(nextKey++));
         Data::Push(L, unit, slot);
         Game::Lua::SetTable(L, outerIdx);
     }
+    // Append auras the descriptor dropped but Aura::Source still has live.
+    Data::AppendCacheFallbacks(L, unit, filter, playerOnly, outerIdx, nextKey);
 }
 
 int __fastcall Script_GetUnitAuras(void *L) {
@@ -218,14 +237,19 @@ int __fastcall Script_GetUnitAuras(void *L) {
     if (unit == nullptr)
         return 1;
 
+    // Range tokens are independent of PLAYER: an explicit HELPFUL/HARMFUL
+    // selects that range, neither selects both. So `"PLAYER"` alone returns
+    // both ranges restricted to player-cast auras (matching retail).
+    const bool playerOnly = HasPlayerFilter(filterStr);
+    const bool hasHelpful = filterStr != nullptr && strstr(filterStr, "HELPFUL") != nullptr;
+    const bool hasHarmful = filterStr != nullptr && strstr(filterStr, "HARMFUL") != nullptr;
+    const bool both = !hasHelpful && !hasHarmful;
+
     int nextKey = 1;
-    if (filterStr == nullptr) {
-        // No filter — return both ranges.
-        AppendRangeToArray(L, unit, 1, Data::Filter::Helpful, nextKey);
-        AppendRangeToArray(L, unit, 1, Data::Filter::Harmful, nextKey);
-    } else {
-        AppendRangeToArray(L, unit, 1, ParseFilter(filterStr), nextKey);
-    }
+    if (hasHelpful || both)
+        AppendRangeToArray(L, unit, 1, Data::Filter::Helpful, nextKey, playerOnly);
+    if (hasHarmful || both)
+        AppendRangeToArray(L, unit, 1, Data::Filter::Harmful, nextKey, playerOnly);
     return 1;
 }
 

src/aura/ComboDuration.cpp

@@ -0,0 +1,252 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// See ComboDuration.h for the contract and the protocol findings that
+// motivate the design (the server never transmits target-debuff
+// durations in 1.12).
+
+#include "ComboDuration.h"
+
+#include "Game.h"
+#include "Offsets.h"
+#include "dbc/Lookup.h"
+#include "net/PacketReader.h"
+#include "spell/Mod.h"
+#include "unit/Identity.h"
+
+#include <cstdint>
+
+namespace Aura::ComboDuration {
+
+namespace {
+
+using Net::CDataStore;
+
+uint32_t NowMs() {
+    using TickCount_t = uint32_t(__fastcall *)();
+    return reinterpret_cast<TickCount_t>(
+        static_cast<uintptr_t>(Offsets::FUN_OS_TICKCOUNT_MS))();
+}
+
+// ---- Combo-point snapshot (NetClient send co-hook) ------------------------
+
+// The player's live combo points, read the same way Script_GetComboPoints
+// (0x0051A190) does: the CP byte on the CGPlayer +0xE68 sub-struct. The player
+// comes from the shared Unit::Identity::PlayerObject() (the object-manager GUID
+// resolve, our fastest player-object path — returns null pre-world rather than
+// throwing), so this stays safe from any context the send hook can fire in.
+uint8_t CurrentComboPoints() {
+    const uint8_t *player = Unit::Identity::PlayerObject();
+    if (player == nullptr)
+        return 0;
+    const uint8_t *info = *reinterpret_cast<const uint8_t *const *>(
+        player + Offsets::OFF_CGPLAYER_INFO);
+    if (info == nullptr)
+        return 0;
+    return *(info + Offsets::OFF_CGPLAYER_COMBO_POINTS);
+}
+
+// One cast in flight at a time is the practical case (a second finisher
+// can't be cast until the server consumes the first one's combo points),
+// so a single slot with a spellID match and a short TTL suffices.
+struct Capture {
+    uint32_t spellId;
+    uint8_t comboPoints;
+    uint32_t capturedMs;
+};
+Capture g_capture{0, 0, 0};
+
+// Worst-case send -> SMSG_SPELL_GO roundtrip. Past this the snapshot is
+// stale (the cast failed / was rejected) and must not scale a later cast.
+constexpr uint32_t kCaptureTtlMs = 2000;
+
+int ConsumeCapturedCP(uint32_t spellId) {
+    const Capture c = g_capture;
+    g_capture = {0, 0, 0};
+    if (c.spellId != spellId || c.comboPoints == 0)
+        return 0;
+    if (NowMs() - c.capturedMs >= kCaptureTtlMs)
+        return 0;
+    return c.comboPoints;
+}
+
+// Co-hook on the NetClient send — the one funnel every outgoing CMSG
+// passes through, including casts released from nampower's spell queue
+// (which bypass any co-hook on Spell_C_CastSpell itself via trampoline
+// re-entry, but still build and send CMSG_CAST_SPELL through the engine).
+// Snapshot the combo points at the moment the cast request leaves: the
+// server consumes them before SMSG_SPELL_GO arrives, so reading at
+// SpellGo time is too late.
+using NetSend_t = void(__fastcall *)(void *conn, void *edx,
+                                     CDataStore *packet);
+NetSend_t g_origNetSend = nullptr;
+
+void __fastcall NetSend_h(void *conn, void *edx, CDataStore *packet) {
+    if (packet != nullptr) {
+        const uint32_t saved = packet->m_read;
+        const uint32_t opcode = Net::Read<uint32_t>(packet);
+        if (opcode == Offsets::OP_CMSG_CAST_SPELL) {
+            const uint32_t spellId = Net::Read<uint32_t>(packet);
+            if (spellId != 0)
+                g_capture = {spellId, CurrentComboPoints(), NowMs()};
+        }
+        packet->m_read = saved;
+    }
+    g_origNetSend(conn, edx, packet);
+}
+
+const Game::HookAutoRegister _sendHook{
+    Offsets::FUN_NET_SEND, reinterpret_cast<void *>(&NetSend_h),
+    reinterpret_cast<void **>(&g_origNetSend)};
+
+// ---- Duration data (SpellDuration.dbc + Lua overrides) --------------------
+
+// Lua-registered overrides for spells whose client DBC row is missing or
+// wrong. Turtle's reworked Rip is the motivating case: its DurationIndex
+// dangles (records[87] == NULL in Turtle's SpellDuration.dbc) because the
+// rework lives entirely server-side, so the values must come from config.
+struct Override {
+    uint32_t spellId;
+    int32_t baseMs;
+    int32_t maxMs;
+};
+constexpr int kMaxOverrides = 64;
+Override g_overrides[kMaxOverrides];
+int g_overrideCount = 0;
+
+const Override *FindOverride(uint32_t spellId) {
+    for (int i = 0; i < g_overrideCount; ++i) {
+        if (g_overrides[i].spellId == spellId)
+            return &g_overrides[i];
+    }
+    return nullptr;
+}
+
+// Resolver chain for dangling-duration-row spells (client DBC missing the
+// row). The KNOWN VALUES themselves are server-custom data and live in
+// their own module (e.g. `src/turtle/ComboDuration.cpp` for Turtle's
+// reworked Rip); this stock module only owns the mechanism and the
+// dangling-condition gate. Chained at static-init by `AutoDanglingResolver`.
+AutoDanglingResolver *g_danglingResolvers = nullptr;
+
+bool ResolveDangling(uint32_t spellId, int32_t *baseMs, int32_t *maxMs) {
+    for (AutoDanglingResolver *r = g_danglingResolvers; r != nullptr;
+         r = r->next)
+        if (r->fn(spellId, baseMs, maxMs))
+            return true;
+    return false;
+}
+
+// `C_UnitAuras.RegisterComboDuration(spellID, baseSeconds, maxSeconds)`
+// -> true on success. Re-registering a spellID replaces its entry.
+// Values are in seconds to match the C_UnitAuras duration convention;
+// the formula applied is the server's own:
+// `base + (max - base) * comboPoints / 5`.
+int __fastcall Script_RegisterComboDuration(void *L) {
+    if (!Game::Lua::IsNumber(L, 1) || !Game::Lua::IsNumber(L, 2) ||
+        !Game::Lua::IsNumber(L, 3)) {
+        Game::Lua::Error(
+            L, "Usage: C_UnitAuras.RegisterComboDuration(spellID, "
+               "baseSeconds, maxSeconds)");
+        return 0;
+    }
+    const auto spellId = static_cast<uint32_t>(Game::Lua::ToNumber(L, 1));
+    const auto baseMs = static_cast<int32_t>(Game::Lua::ToNumber(L, 2) * 1000.0);
+    const auto maxMs = static_cast<int32_t>(Game::Lua::ToNumber(L, 3) * 1000.0);
+    if (spellId == 0 || baseMs < 0 || maxMs <= 0) {
+        Game::Lua::PushBool(L, false);
+        return 1;
+    }
+    for (int i = 0; i < g_overrideCount; ++i) {
+        if (g_overrides[i].spellId == spellId) {
+            g_overrides[i] = {spellId, baseMs, maxMs};
+            Game::Lua::PushBool(L, true);
+            return 1;
+        }
+    }
+    if (g_overrideCount >= kMaxOverrides) {
+        Game::Lua::PushBool(L, false);
+        return 1;
+    }
+    g_overrides[g_overrideCount++] = {spellId, baseMs, maxMs};
+    Game::Lua::PushBool(L, true);
+    return 1;
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_UnitAuras", "RegisterComboDuration",
+                                     &Script_RegisterComboDuration);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+AutoDanglingResolver::AutoDanglingResolver(DanglingResolver f)
+    : fn(f), next(g_danglingResolvers) {
+    g_danglingResolvers = this;
+}
+
+uint32_t TryComboScaledMs(const uint8_t *spellRecord, uint32_t spellId) {
+    if (spellRecord == nullptr || spellId == 0)
+        return 0;
+    const int cp = ConsumeCapturedCP(spellId);
+    if (cp <= 0 || cp > 5)
+        return 0;
+
+    int32_t baseMs = 0;
+    int32_t maxMs = 0;
+    if (const Override *o = FindOverride(spellId)) {
+        baseMs = o->baseMs;
+        maxMs = o->maxMs;
+    } else {
+        const int idx = *reinterpret_cast<const int *>(
+            spellRecord + Offsets::OFF_SPELL_RECORD_DURATION_INDEX);
+        const uint8_t *row =
+            DBC::Record(Offsets::VAR_SPELL_DURATION_RECORDS,
+                        Offsets::VAR_SPELL_DURATION_COUNT,
+                        static_cast<uint32_t>(idx));
+        if (row != nullptr) {
+            baseMs = *reinterpret_cast<const int32_t *>(row + 0x4);
+            maxMs = *reinterpret_cast<const int32_t *>(row + 0xC);
+        } else if (idx != 0) {
+            // Dangling duration index — the client data is broken for this
+            // spell. Defer to a registered resolver (the known values are
+            // server-custom data owned by a platform module, e.g.
+            // src/turtle for Turtle's reworked Rip).
+            if (!ResolveDangling(spellId, &baseMs, &maxMs))
+                return 0;
+        } else {
+            return 0; // no duration row at all
+        }
+    }
+
+    // The server scales only when the row has a combo range: base != max
+    // ((v)mangos CalculateSpellDuration). base < 0 is the "infinite"
+    // sentinel; fixed-duration rows (base == max) take the regular path.
+    if (baseMs < 0 || maxMs <= 0 || baseMs == maxMs)
+        return 0;
+
+    int32_t durationMs = baseMs + (maxMs - baseMs) * cp / 5;
+    if (durationMs <= 0)
+        return 0;
+
+    // Player duration SpellMods apply on top of the combo-scaled value,
+    // matching the server's order (scale, then ApplySpellMod).
+    durationMs = static_cast<int32_t>(Spell::Mod::Apply(
+        spellRecord, Offsets::SPELLMOD_OP_DURATION,
+        static_cast<float>(durationMs)));
+    return durationMs > 0 ? static_cast<uint32_t>(durationMs) : 0;
+}
+
+} // namespace Aura::ComboDuration

src/aura/ComboDuration.h

@@ -0,0 +1,68 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <cstdint>
+
+// `Aura::ComboDuration` — combo-point-scaled durations for finisher
+// auras (Rupture, Kidney Shot, Slice and Dice, Rip, …).
+//
+// The 1.12 server computes a finisher's real duration at cast time as
+// `base + (max - base) * comboPoints / 5` from the spell's
+// SpellDuration.dbc row and never transmits the result for auras the
+// player puts on OTHER units (verified with a whole-protocol sniff:
+// SMSG_UPDATE_AURA_DURATION is self-scoped, and nothing else carries
+// it). So this module mirrors the computation client-side:
+//
+//   - a co-hook on the NetClient send (`FUN_NET_SEND`) snapshots the
+//     player's combo points the instant CMSG_CAST_SPELL leaves — the
+//     one moment the count is still intact (the server clears it
+//     before SMSG_SPELL_GO comes back);
+//   - `TryComboScaledMs` consumes that snapshot when `Aura::Source`'s
+//     SpellGo hook stores the aura, computing the scaled duration from
+//     SpellDuration.dbc and applying the player's duration SpellMods on
+//     top, matching the server's order of operations. Spells whose
+//     duration index DANGLES (client data bug — Turtle's reworked Rip
+//     is the known case) fall back to built-in values gated on that
+//     exact condition; a Lua-registered override
+//     (`C_UnitAuras.RegisterComboDuration`) beats both, as an escape
+//     hatch for other servers whose values differ from the client DBC.
+namespace Aura::ComboDuration {
+
+// Combo-scaled duration (ms) for a player-cast spell, or 0 when it
+// doesn't apply: no combo points captured for this cast, the spell's
+// duration row isn't combo-scaled (base == max) and has no override,
+// or the row is missing. A 0 return means "use the regular base
+// duration path".
+uint32_t TryComboScaledMs(const uint8_t *spellRecord, uint32_t spellId);
+
+// Extension point for finishers whose SpellDuration row DANGLES — a
+// non-zero DurationIndex pointing at a row the client DBC doesn't have.
+// A resolver returns true and fills *baseMs/*maxMs if it knows the spell,
+// false otherwise. Consulted by `TryComboScaledMs` ONLY in that dangling
+// condition (after any Lua-registered override), so the activation gate is
+// the client-data bug itself, not a server fingerprint — the deliberate
+// design choice (a realm-sniffing approach was rejected). Server-custom
+// data (e.g. Turtle's reworked Rip) registers its values here instead of
+// living in this stock module: declare a file-scope
+// `static const Aura::ComboDuration::AutoDanglingResolver`.
+using DanglingResolver = bool (*)(uint32_t spellId, int32_t *baseMs,
+                                  int32_t *maxMs);
+struct AutoDanglingResolver {
+    explicit AutoDanglingResolver(DanglingResolver fn);
+    DanglingResolver fn;
+    AutoDanglingResolver *next;
+};
+
+} // namespace Aura::ComboDuration

src/aura/Data.cpp

@@ -1,12 +1,12 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 
 // Aura-table primitives. See `Data.h` for the contract; see `Api.cpp`
 // for the Lua-binding surface that consumes these.
@@ -15,7 +15,10 @@
 
 #include "Game.h"
 #include "Offsets.h"
+#include "aura/Source.h"
 #include "dbc/Lookup.h"
+#include "guid/Guid.h"
+#include "unit/Identity.h"
 
 #include <cstdint>
 #include <cstring>
@@ -38,6 +41,13 @@ const uint8_t *Descriptor(const uint8_t *unit) {
         unit + Offsets::OFF_CGUNIT_OBJECT_FIELDS);
 }
 
+// Keys into the `Aura::Source` caster/expiration cache. Thin alias for the
+// shared `Unit::Identity::GuidForObject` so the lookup here and the
+// OnAuraAdded hook in `Aura::Source` read the GUID the same way.
+uint64_t UnitGuid(const uint8_t *unit) {
+    return Unit::Identity::GuidForObject(unit);
+}
+
 const uint8_t *SpellRecord(uint32_t spellID) {
     return DBC::Record(Offsets::VAR_SPELL_RECORDS,
                        Offsets::VAR_SPELL_RECORD_COUNT, spellID);
@@ -110,6 +120,13 @@ const uint8_t *FindPlayerBuffEntry(uint32_t spellID) {
 // what Lua's `GetTime()` returns (engineMs * 0.001), so converting
 // `expirationMs * 0.001` lands directly on the same timeline addons
 // compare against on the Lua side. No epoch reconciliation needed.
+//
+// **Read as `uint32_t`**: GetTickCount overflows `INT_MAX` at ~24.86
+// days of system uptime. A signed read flips negative past that
+// point, which broke a `<= 0` early-bail that was supposed to catch
+// only the "no timing" (0) sentinel. The engine's own arithmetic
+// works on the unsigned tick because both sides of `expiration -
+// currentMs` wrap together.
 double PlayerBuffExpirationSeconds(const uint8_t *entry) {
     if (entry == nullptr)
         return 0.0;
@@ -117,12 +134,12 @@ double PlayerBuffExpirationSeconds(const uint8_t *entry) {
         entry + Offsets::OFF_PLAYER_BUFF_SLOT_CODE);
     if (slotCode < 0)
         return 0.0;
-    auto *expirationTable = reinterpret_cast<const int *>(
+    auto *expirationTable = reinterpret_cast<const uint32_t *>(
         static_cast<uintptr_t>(Offsets::VAR_PLAYER_BUFF_EXPIRATION_TABLE));
-    const int expirationMs = expirationTable[slotCode];
-    if (expirationMs <= 0)
+    const uint32_t expirationMs = expirationTable[slotCode];
+    if (expirationMs == 0)
         return 0.0;
-    return static_cast<double>(static_cast<uint32_t>(expirationMs)) * 0.001;
+    return static_cast<double>(expirationMs) * 0.001;
 }
 
 // Computes the spell's base duration in seconds via Spell.dbc →
@@ -212,7 +229,20 @@ bool IsSlotPopulated(const uint8_t *unit, int slot) {
     return IsVisible(SpellRecord(spellID));
 }
 
-int FindNthSlot(const uint8_t *unit, int oneBasedIndex, Filter filter) {
+bool IsPlayerCast(const uint8_t *unit, int slot) {
+    const uint32_t spellID = ReadSpellID(unit, slot);
+    if (spellID == 0)
+        return false;
+    uint64_t casterGuid = 0;
+    uint32_t expMs = 0;
+    uint32_t durMs = 0;
+    if (!Aura::Source::Get(UnitGuid(unit), spellID, &casterGuid, &expMs, &durMs))
+        return false;
+    return casterGuid != 0 && casterGuid == Unit::Identity::PlayerGuid();
+}
+
+int FindNthSlot(const uint8_t *unit, int oneBasedIndex, Filter filter,
+                bool playerOnly) {
     if (unit == nullptr || oneBasedIndex < 1)
         return -1;
     const int start = (filter == Filter::Harmful)
@@ -225,6 +255,8 @@ int FindNthSlot(const uint8_t *unit, int oneBasedIndex, Filter filter) {
     for (int slot = start; slot < end; ++slot) {
         if (!IsSlotPopulated(unit, slot))
             continue;
+        if (playerOnly && !IsPlayerCast(unit, slot))
+            continue;
         if (++matches == oneBasedIndex)
             return slot;
     }
@@ -232,7 +264,7 @@ int FindNthSlot(const uint8_t *unit, int oneBasedIndex, Filter filter) {
 }
 
 int FindSlotBySpellID(const uint8_t *unit, uint32_t spellID,
-                      const Filter *filter) {
+                      const Filter *filter, bool playerOnly) {
     if (unit == nullptr || spellID == 0)
         return -1;
     const int start = (filter != nullptr && *filter == Filter::Harmful)
@@ -244,14 +276,17 @@ int FindSlotBySpellID(const uint8_t *unit, uint32_t spellID,
     for (int slot = start; slot < end; ++slot) {
         if (!IsSlotPopulated(unit, slot))
             continue;
-        if (ReadSpellID(unit, slot) == spellID)
-            return slot;
+        if (ReadSpellID(unit, slot) != spellID)
+            continue;
+        if (playerOnly && !IsPlayerCast(unit, slot))
+            continue;
+        return slot;
     }
     return -1;
 }
 
 int FindSlotBySpellName(const uint8_t *unit, const char *spellName,
-                        const Filter *filter) {
+                        const Filter *filter, bool playerOnly) {
     if (unit == nullptr || spellName == nullptr || *spellName == '\0')
         return -1;
     const int start = (filter != nullptr && *filter == Filter::Harmful)
@@ -264,8 +299,11 @@ int FindSlotBySpellName(const uint8_t *unit, const char *spellName,
         if (!IsSlotPopulated(unit, slot))
             continue;
         const char *name = LocalizedSpellName(SpellRecord(ReadSpellID(unit, slot)));
-        if (name != nullptr && std::strcmp(name, spellName) == 0)
-            return slot;
+        if (name == nullptr || std::strcmp(name, spellName) != 0)
+            continue;
+        if (playerOnly && !IsPlayerCast(unit, slot))
+            continue;
+        return slot;
     }
     return -1;
 }
@@ -312,10 +350,13 @@ const char *DispelName(uint32_t dispelTypeID) {
     return (name == nullptr || *name == '\0') ? nullptr : name;
 }
 
-void Push(void *L, const uint8_t *unit, int slot) {
-    const uint32_t spellID = ReadSpellID(unit, slot);
+// Writes the full modern AuraData table on top of the Lua stack from
+// already-resolved values. Shared by the descriptor path (`Push`) and the
+// cache-fallback path (`PushFromCache`). Net stack effect: +1 (the table).
+static void BuildTable(void *L, uint32_t spellID, int applications,
+                       bool isHelpful, double duration, double expirationTime,
+                       uint64_t casterGuid) {
     const uint8_t *spellRecord = SpellRecord(spellID);
-    const bool isHelpful = slot < Offsets::UNIT_AURA_BUFF_COUNT;
 
     uint32_t dispelTypeID = 0;
     if (spellRecord != nullptr) {
@@ -332,43 +373,32 @@ void Push(void *L, const uint8_t *unit, int slot) {
     Game::Lua::SetFieldString(L, "name", name);
     Game::Lua::SetFieldString(L, "icon", icon);
     Game::Lua::SetFieldNumber(L, "applications",
-        static_cast<double>(ReadStacks(unit, slot)));
+                              static_cast<double>(applications));
     Game::Lua::SetFieldNumber(L, "spellId", static_cast<double>(spellID));
     Game::Lua::SetFieldString(L, "dispelName", dispel);
     Game::Lua::SetFieldBool(L, "isHelpful", isHelpful);
     Game::Lua::SetFieldBool(L, "isHarmful", !isHelpful);
-
-    // Timing fields. Vanilla doesn't broadcast cast time / duration
-    // for ANY unit's auras except the local player's — for everyone
-    // else (target, party, raid, mouseover) `expirationTime` stays 0
-    // and addons have to track expiry themselves via aura-add events.
-    // For the player we read the engine's `VAR_PLAYER_BUFF_TABLE`
-    // (same data `GetPlayerBuffTimeLeft` returns), which gives us a
-    // real expiration timestamp.
-    //
-    // `duration` comes from Spell.dbc → SpellDuration.dbc with
-    // level scaling. That's the *base* value; talent / glyph
-    // duration-extension modifiers (Improved PW:F, etc.) are
-    // already baked into the expiration timestamp on the
-    // caster's side, so `expirationTime - GetTime()` reflects the
-    // true remaining time even when `duration` doesn't include
-    // the talent boost. We populate `duration` for any unit (the
-    // base value is identical regardless of who's affected); only
-    // `expirationTime` is player-gated.
-    double duration = 0.0;
-    double expirationTime = 0.0;
-    const uint8_t *player = LocalPlayer();
-    if (spellID != 0) {
-        const int unitLevel = (unit != nullptr) ? PlayerLevel(unit) : 0;
-        duration = SpellBaseDurationSeconds(spellID, unitLevel);
-    }
-    if (unit != nullptr && unit == player) {
-        const uint8_t *entry = FindPlayerBuffEntry(spellID);
-        if (entry != nullptr)
-            expirationTime = PlayerBuffExpirationSeconds(entry);
-    }
     Game::Lua::SetFieldNumber(L, "duration", duration);
     Game::Lua::SetFieldNumber(L, "expirationTime", expirationTime);
+
+    if (casterGuid != 0) {
+        // `sourceUnit` is a token (nil when the caster maps to no current
+        // token); `sourceGUID` is the raw "0x..." GUID and is set whenever we
+        // have a caster — a ClassicAPI extension (not in retail AuraData) that
+        // survives the caster leaving token range and doubles as a unit token
+        // under SuperWoW.
+        char tokenBuf[32];
+        char guidBuf[Guid::STRING_SIZE];
+        const char *sourceUnit = Unit::Identity::TokenFromGUID(
+            casterGuid, tokenBuf, sizeof tokenBuf);
+        const char *sourceGUID =
+            Guid::FormatAsString(casterGuid, guidBuf, sizeof guidBuf);
+        if (sourceUnit != nullptr)
+            Game::Lua::SetFieldString(L, "sourceUnit", sourceUnit);
+        if (sourceGUID != nullptr)
+            Game::Lua::SetFieldString(L, "sourceGUID", sourceGUID);
+    }
+
     Game::Lua::SetFieldNumber(L, "charges", 0);
     Game::Lua::SetFieldNumber(L, "maxCharges", 0);
     Game::Lua::SetFieldNumber(L, "timeMod", 1);
@@ -384,10 +414,223 @@ void Push(void *L, const uint8_t *unit, int slot) {
     Game::Lua::SetFieldBool(L, "shouldConsolidate", false);
     Game::Lua::SetFieldBool(L, "isRaid", false);
 
-    // `sourceUnit`, `auraInstanceID`, `points` deliberately omitted
-    // — modern returns nil for those when they don't apply, and
-    // Lua reading a missing key yields nil, so the table doesn't
-    // need an explicit entry.
+    // `auraInstanceID` and `points` are deliberately omitted — modern returns
+    // nil for those when they don't apply, and Lua reading a missing key
+    // yields nil, so the table doesn't need an explicit entry.
+}
+
+void Push(void *L, const uint8_t *unit, int slot) {
+    const uint32_t spellID = ReadSpellID(unit, slot);
+    const bool isHelpful = slot < Offsets::UNIT_AURA_BUFF_COUNT;
+
+    // Timing fields. Vanilla doesn't broadcast cast time / duration for ANY
+    // unit's auras except the local player's — for everyone else (target,
+    // party, raid, mouseover) `expirationTime` stays 0 unless the
+    // `Aura::Source` cache observed the cast. For the player we read the
+    // engine's `VAR_PLAYER_BUFF_TABLE` (same data `GetPlayerBuffTimeLeft`
+    // returns), which gives a real expiration timestamp.
+    //
+    // `duration` comes from Spell.dbc → SpellDuration.dbc with level scaling
+    // (the *base* value); talent / glyph duration-extension modifiers are
+    // already baked into the expiration timestamp on the caster's side, so
+    // `expirationTime - GetTime()` reflects true remaining time even when the
+    // base `duration` doesn't include the talent boost.
+    double duration = 0.0;
+    double expirationTime = 0.0;
+    uint64_t casterGuid = 0;
+    const uint8_t *player = LocalPlayer();
+    if (spellID != 0) {
+        const int unitLevel = (unit != nullptr) ? PlayerLevel(unit) : 0;
+        duration = SpellBaseDurationSeconds(spellID, unitLevel);
+    }
+    if (unit != nullptr && unit == player) {
+        const uint8_t *entry = FindPlayerBuffEntry(spellID);
+        if (entry != nullptr)
+            expirationTime = PlayerBuffExpirationSeconds(entry);
+    }
+    // Caster + non-player expiration from the SMSG_SPELL_GO cache, captured at
+    // cast time (the descriptor has neither). The player-buff table above is
+    // authoritative for the player's own expiration; the cache fills it for
+    // everyone else. Prefer the applied (caster-modified) duration so it stays
+    // consistent with `expirationTime` — otherwise a talented DoT (Improved
+    // Shadow Word: Pain) would show remaining time exceeding the base.
+    if (spellID != 0) {
+        uint64_t c = 0;
+        uint32_t expMs = 0;
+        uint32_t durMs = 0;
+        if (Aura::Source::Get(UnitGuid(unit), spellID, &c, &expMs, &durMs)) {
+            if (expirationTime == 0.0 && expMs != 0)
+                expirationTime = static_cast<double>(expMs) * 0.001;
+            if (durMs != 0)
+                duration = static_cast<double>(durMs) * 0.001;
+            casterGuid = c;
+        }
+    }
+
+    BuildTable(L, spellID, ReadStacks(unit, slot), isHelpful, duration,
+               expirationTime, casterGuid);
+}
+
+namespace {
+
+// Builds an AuraData table from an `Aura::Source` cache entry — the fallback
+// when the descriptor has dropped the aura's slot. Stack count isn't broadcast
+// in SMSG_SPELL_GO, so `applications` defaults to 1. `duration` uses the
+// applied (caster-modified) ms when known, else the Spell.dbc base.
+void PushFromCache(void *L, const uint8_t *unit,
+                   const Aura::Source::CachedAura &c, bool isHelpful) {
+    double duration = 0.0;
+    if (c.durationMs != 0) {
+        duration = static_cast<double>(c.durationMs) * 0.001;
+    } else {
+        const int unitLevel = (unit != nullptr) ? PlayerLevel(unit) : 0;
+        duration = SpellBaseDurationSeconds(c.spellId, unitLevel);
+    }
+    const double expirationTime =
+        (c.expirationMs != 0) ? static_cast<double>(c.expirationMs) * 0.001 : 0.0;
+    BuildTable(L, c.spellId, 1, isHelpful, duration, expirationTime,
+               c.casterGuid);
+}
+
+// Reconciles the `Aura::Source` cache against `unit`'s descriptor: when the
+// descriptor holds at least one raw aura the unit is in view and fully synced,
+// so it's authoritative — any cached entry for the unit whose spell isn't in
+// the array was removed while we couldn't see it (e.g. cancelled out of range,
+// so no OnAuraRemoved reached us) and must be dropped before the fallback
+// resurfaces it as a phantom (an enumerated aura whose SetUnitAura tooltip is
+// empty). Reads the RAW slots (not IsSlotPopulated): a spell that's present
+// but flag-hidden is still legitimately on the unit. Skips when the array is
+// empty — that can't be told apart from an out-of-range descriptor drop, and
+// reconciling then would wipe still-valid out-of-range entries.
+void ReconcileCache(const uint8_t *unit) {
+    if (unit == nullptr)
+        return;
+    uint32_t present[Offsets::UNIT_AURA_TOTAL];
+    int n = 0;
+    for (int slot = 0; slot < Offsets::UNIT_AURA_TOTAL; ++slot) {
+        const uint32_t id = ReadSpellID(unit, slot);
+        if (id != 0)
+            present[n++] = id;
+    }
+    if (n == 0)
+        return;
+    Aura::Source::EvictAbsent(UnitGuid(unit), present, n);
+}
+
+// True if `unit`'s descriptor currently exposes any visible aura in either
+// range. The cache fallback is only trustworthy when the descriptor has been
+// wholesale-cleared: the two states it exists for — rogue stealth and party
+// range fluctuation — clear the *entire* aura array at once. If the unit shows
+// even one live aura, the descriptor is authoritative, so a cache entry the
+// descriptor lacks is a genuinely-gone aura we never saw removed (e.g. a
+// no-duration debuff — Ghost/Spirit — on a unit that died and resurrected out
+// of our visibility, so no OnAuraRemoved fired and its infinite entry never
+// expired). Surfacing it then produces a stuck phantom.
+bool DescriptorHasVisibleAura(const uint8_t *unit) {
+    if (unit == nullptr)
+        return false;
+    for (int slot = 0; slot < Offsets::UNIT_AURA_TOTAL; ++slot) {
+        if (IsSlotPopulated(unit, slot))
+            return true;
+    }
+    return false;
+}
+
+// Counts populated descriptor slots matching `filter` (and `playerOnly`).
+int CountSlots(const uint8_t *unit, Filter filter, bool playerOnly) {
+    if (unit == nullptr)
+        return 0;
+    const int start = (filter == Filter::Harmful)
+                          ? Offsets::UNIT_AURA_BUFF_COUNT
+                          : 0;
+    const int end = (filter == Filter::Harmful) ? Offsets::UNIT_AURA_TOTAL
+                                                 : Offsets::UNIT_AURA_BUFF_COUNT;
+    int n = 0;
+    for (int slot = start; slot < end; ++slot) {
+        if (!IsSlotPopulated(unit, slot))
+            continue;
+        if (playerOnly && !IsPlayerCast(unit, slot))
+            continue;
+        ++n;
+    }
+    return n;
+}
+
+constexpr int kFallbackMax = Offsets::UNIT_AURA_TOTAL;
+
+// Whether cache entry `c` should be surfaced as a fallback for `unit` under
+// `filter`/`playerOnly`: the spell must be a user-visible aura, it must not
+// already be in a populated descriptor slot (no double-listing the same live
+// aura) and, when player-filtered, must have been cast by us. Superseded /
+// dispelled auras are kept out of the cache by `Aura::Source`'s removal
+// eviction, not filtered here.
+bool FallbackEligible(const uint8_t *unit, const Aura::Source::CachedAura &c,
+                      Filter filter, bool playerOnly) {
+    if (!IsVisible(SpellRecord(c.spellId)))
+        return false; // hidden/internal aura (e.g. SPELL_ATTR_HIDDEN_CLIENTSIDE):
+                      // the descriptor path drops these via IsSlotPopulated, so
+                      // the cache path must apply the same engine predicate or
+                      // they leak through as tooltip-less phantom buffs.
+    if (FindSlotBySpellID(unit, c.spellId, &filter, false) >= 0)
+        return false; // still in the descriptor — returned via the slot path
+    if (playerOnly && c.casterGuid != Unit::Identity::PlayerGuid())
+        return false;
+    return true;
+}
+
+} // namespace
+
+bool PushNthCacheFallback(void *L, const uint8_t *unit, int oneBasedIndex,
+                          Filter filter, bool playerOnly) {
+    if (unit == nullptr)
+        return false;
+    ReconcileCache(unit); // drop entries the (synced) descriptor contradicts
+    if (DescriptorHasVisibleAura(unit))
+        return false; // descriptor authoritative — see DescriptorHasVisibleAura
+    // The descriptor held `descCount` matches; the caller already found fewer
+    // than `oneBasedIndex` there, so the cache supplies index
+    // `oneBasedIndex - descCount` (1-based) of the entries it didn't.
+    const int target = oneBasedIndex - CountSlots(unit, filter, playerOnly);
+    if (target < 1)
+        return false;
+    const uint64_t guid = UnitGuid(unit);
+    if (guid == 0)
+        return false;
+    Aura::Source::CachedAura buf[kFallbackMax];
+    const int n = Aura::Source::Enumerate(
+        guid, filter == Filter::Harmful, buf, kFallbackMax);
+    int seen = 0;
+    for (int i = 0; i < n; ++i) {
+        if (!FallbackEligible(unit, buf[i], filter, playerOnly))
+            continue;
+        if (++seen == target) {
+            PushFromCache(L, unit, buf[i], filter == Filter::Helpful);
+            return true;
+        }
+    }
+    return false;
+}
+
+void AppendCacheFallbacks(void *L, const uint8_t *unit, Filter filter,
+                          bool playerOnly, int outerIdx, int &nextKey) {
+    if (unit == nullptr)
+        return;
+    ReconcileCache(unit); // drop entries the (synced) descriptor contradicts
+    if (DescriptorHasVisibleAura(unit))
+        return; // descriptor authoritative — see DescriptorHasVisibleAura
+    const uint64_t guid = UnitGuid(unit);
+    if (guid == 0)
+        return;
+    Aura::Source::CachedAura buf[kFallbackMax];
+    const int n = Aura::Source::Enumerate(
+        guid, filter == Filter::Harmful, buf, kFallbackMax);
+    for (int i = 0; i < n; ++i) {
+        if (!FallbackEligible(unit, buf[i], filter, playerOnly))
+            continue;
+        Game::Lua::PushNumber(L, static_cast<double>(nextKey++));
+        PushFromCache(L, unit, buf[i], filter == Filter::Helpful);
+        Game::Lua::SetTable(L, outerIdx);
+    }
 }
 
 } // namespace Aura::Data

src/aura/Data.h

@@ -1,12 +1,12 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 
 #pragma once
 
@@ -47,22 +47,29 @@ bool IsSlotPopulated(const uint8_t *unit, int slot);
 // Finds the absolute slot of the `oneBasedIndex`-th populated aura
 // matching `filter`. Returns -1 if no such aura. Walks
 // 0..UNIT_AURA_BUFF_COUNT-1 for Helpful, UNIT_AURA_BUFF_COUNT..
-// UNIT_AURA_TOTAL-1 for Harmful.
-int FindNthSlot(const uint8_t *unit, int oneBasedIndex, Filter filter);
+// UNIT_AURA_TOTAL-1 for Harmful. When `playerOnly` is true, only auras
+// the local player cast (per `IsPlayerCast`) are counted/returned.
+int FindNthSlot(const uint8_t *unit, int oneBasedIndex, Filter filter,
+                bool playerOnly = false);
 
 // Finds the absolute slot of a populated aura with the given spell
 // ID, optionally restricted to one filter range. `filter` of
 // nullptr searches both ranges (helpful first, then harmful).
-// Returns -1 if not found.
+// `playerOnly` restricts to player-cast auras. Returns -1 if not found.
 int FindSlotBySpellID(const uint8_t *unit, uint32_t spellID,
-                      const Filter *filter);
+                      const Filter *filter, bool playerOnly = false);
 
 // Finds the absolute slot of a populated aura whose locale-resolved
 // spell name exactly matches `spellName`. Case-sensitive. Otherwise
 // same semantics as `FindSlotBySpellID`. Returns -1 if not found
 // or if `spellName` is null/empty.
 int FindSlotBySpellName(const uint8_t *unit, const char *spellName,
-                        const Filter *filter);
+                        const Filter *filter, bool playerOnly = false);
+
+// True iff the aura at `slot` was cast by the local player, per the
+// `Aura::Source` cache. False on a cache miss (caster unknown) — so a
+// PLAYER-filtered query excludes auras whose cast we didn't observe.
+bool IsPlayerCast(const uint8_t *unit, int slot);
 
 // Display stack count for the given slot (engine stores stacks-1,
 // we add 1). Returns 0 if the unit is null.
@@ -85,12 +92,18 @@ const char *DispelName(uint32_t dispelTypeID);
 //
 // Populates these fields with real data:
 //   name, icon, applications, spellId, dispelName,
-//   isHelpful, isHarmful, timeMod
+//   isHelpful, isHarmful, timeMod, duration
+//
+// And these from the `Aura::Source` SMSG_SPELL_GO cache when available
+// (else their inapplicable default):
+//   expirationTime (player: engine buff table; others: cache; 0 on miss),
+//   sourceUnit     (caster token from the cache; nil on miss),
+//   sourceGUID     (caster "0x..." GUID string; nil on miss — a ClassicAPI
+//                   extension, not in retail AuraData)
 //
 // And these with vanilla-truthful defaults (matches modern's
 // "field present but inapplicable" semantics):
-//   duration=0, expirationTime=0, charges=0, maxCharges=0,
-//   sourceUnit=nil, auraInstanceID=nil, points=nil,
+//   charges=0, maxCharges=0, auraInstanceID=nil, points=nil,
 //   isStealable=false, isBossAura=false, isFromPlayerOrPlayerPet=false,
 //   isNameplateOnly=false, nameplateShowAll=false,
 //   nameplateShowPersonal=false, canApplyAura=false,
@@ -99,4 +112,24 @@ const char *DispelName(uint32_t dispelTypeID);
 // Net stack effect: +1 (the table).
 void Push(void *L, const uint8_t *unit, int slot);
 
+// Fallback for the index path when the descriptor has dropped an aura's slot
+// (rogue stealth, party range fluctuation) but it's still active server-side.
+// `oneBasedIndex` is the same index the caller passed to `FindNthSlot`; this
+// resolves it against the `Aura::Source` cache *after* the descriptor matches
+// (so cache entries append after descriptor ones, preserving existing index
+// order). On a hit it pushes the AuraData table and returns true; on a miss it
+// pushes nothing and returns false (caller pushes nil). Only entries whose
+// helpful/harmful classification matches `filter` and that aren't already in a
+// populated descriptor slot are considered.
+bool PushNthCacheFallback(void *L, const uint8_t *unit, int oneBasedIndex,
+                          Filter filter, bool playerOnly = false);
+
+// Appends every eligible `Aura::Source` cache fallback for `unit` matching
+// `filter` into the array table at `outerIdx`, continuing from `nextKey`
+// (updated in place). The bulk-enumeration analog of `PushNthCacheFallback`,
+// for `GetUnitAuras`. Skips entries already present in a populated descriptor
+// slot so it never double-lists.
+void AppendCacheFallbacks(void *L, const uint8_t *unit, Filter filter,
+                          bool playerOnly, int outerIdx, int &nextKey);
+
 } // namespace Aura::Data

src/aura/Source.cpp

@@ -0,0 +1,426 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+
+// See `Source.h` for the contract. This is the backend: a co-hook on
+// `FUN_SPELL_GO` that mirrors nampower's `SpellGoHook` parse to capture the
+// caster + duration of every aura-applying cast, and a small fixed-size
+// cache `Aura::Data::Push` reads from.
+
+#include "Source.h"
+
+#include "ComboDuration.h"
+#include "Data.h"
+#include "Game.h"
+#include "Offsets.h"
+#include "net/PacketReader.h"
+#include "player/StatSignal.h"
+#include "spell/Lookup.h"
+#include "tick/WorldTick.h"
+#include "totem/Tracker.h"
+#include "unit/Identity.h"
+
+#include <cstdint>
+
+namespace Aura::Source {
+
+namespace {
+
+using Net::CDataStore;
+
+// A cast applies an aura iff any of its three effects names an aura. The
+// EffectApplyAuraName[3] int32 array sits at `+0x16C` (already used by the
+// shapeshift / mechanic-immunity code). Gating on this keeps pure-damage
+// and utility casts out of the cache.
+bool SpellAppliesAura(const uint8_t *spellRecord) {
+    if (spellRecord == nullptr)
+        return false;
+    const auto *auraNames = reinterpret_cast<const int32_t *>(
+        spellRecord + Offsets::OFF_SPELL_RECORD_EFFECT_APPLY_AURA_NAME);
+    for (int i = 0; i < Offsets::SPELL_RECORD_EFFECT_COUNT; ++i) {
+        if (auraNames[i] != 0)
+            return true;
+    }
+    return false;
+}
+
+uint32_t NowMs() {
+    using TickCount_t = uint32_t(__fastcall *)();
+    return reinterpret_cast<TickCount_t>(
+        static_cast<uintptr_t>(Offsets::FUN_OS_TICKCOUNT_MS))();
+}
+
+// Server-authoritative duration (ms). When the local player is the caster
+// we let the engine fold in the player's duration modifiers (skipMod = 0);
+// for any other caster we take the unmodified base (skipMod = 1) since we
+// only have the local player's mod tables. `unit = 0` selects the player
+// mod context per FUN_GET_SPELL_DURATION's signature.
+uint32_t SpellDurationMs(const uint8_t *spellRecord, bool casterIsPlayer) {
+    using GetDuration_t = int(__fastcall *)(const uint8_t *spellRecord,
+                                            int unit, char skipMod);
+    const int ms = reinterpret_cast<GetDuration_t>(
+        static_cast<uintptr_t>(Offsets::FUN_GET_SPELL_DURATION))(
+        spellRecord, 0, casterIsPlayer ? 0 : 1);
+    return ms > 0 ? static_cast<uint32_t>(ms) : 0;
+}
+
+// ---- Cache ---------------------------------------------------------------
+
+// Helpful/harmful classification, recorded from the aura's descriptor slot
+// when it's applied (the only place the buff/debuff split is known). SpellGo
+// gives no slot, so casts we only saw there stay Unknown until/unless an
+// application hook fires for the same aura.
+enum Kind : int8_t { KIND_UNKNOWN = -1, KIND_HELPFUL = 0, KIND_HARMFUL = 1 };
+
+struct Entry {
+    uint64_t targetGuid;
+    uint64_t casterGuid;
+    uint32_t spellId;
+    uint32_t expirationMs; // 0 = infinite / unknown duration
+    uint32_t durationMs;   // applied duration (incl. caster mods); 0 = none
+    int8_t kind;           // Kind; descriptor-slot-derived, KIND_UNKNOWN if only seen via SpellGo
+    bool used;
+};
+
+constexpr int kCacheSize = 256;
+Entry g_cache[kCacheSize];
+int g_writeCursor = 0;
+
+// `fromCast` true: the SpellGo hook — authoritative caster + caster-modified
+// (talented) timing. False: the OnAuraAdded application hook — timing only,
+// no caster, and it must not clobber an entry SpellGo already owns (that
+// would replace talented timing with the unmodified base), so it skips
+// entries that already carry a caster.
+void Store(uint64_t targetGuid, uint32_t spellId, uint64_t casterGuid,
+           uint32_t expirationMs, uint32_t durationMs, bool fromCast,
+           int8_t kind) {
+    if (targetGuid == 0 || spellId == 0)
+        return;
+
+    // Update an existing entry for this exact aura instance.
+    for (auto &e : g_cache) {
+        if (e.used && e.targetGuid == targetGuid && e.spellId == spellId) {
+            // Learn the classification whenever a slot-derived kind arrives —
+            // independent of caster/timing ownership, and never downgrade a
+            // known kind back to unknown.
+            if (kind != KIND_UNKNOWN)
+                e.kind = kind;
+            if (!fromCast && e.casterGuid != 0)
+                return; // SpellGo owns this entry; keep its caster + timing
+            if (casterGuid != 0)
+                e.casterGuid = casterGuid;
+            e.expirationMs = expirationMs;
+            e.durationMs = durationMs;
+            return;
+        }
+    }
+    // Take a free slot, else an expired one, else evict round-robin.
+    const uint32_t now = NowMs();
+    for (auto &e : g_cache) {
+        if (!e.used || (e.expirationMs != 0 && now >= e.expirationMs)) {
+            e = {targetGuid, casterGuid, spellId, expirationMs, durationMs,
+                 kind, true};
+            return;
+        }
+    }
+    Entry &slot = g_cache[g_writeCursor];
+    g_writeCursor = (g_writeCursor + 1) % kCacheSize;
+    slot = {targetGuid, casterGuid, spellId, expirationMs, durationMs, kind,
+            true};
+}
+
+// Evict the entry for an aura the engine reports gone. Keyed by (target,
+// spell) like the rest of the cache. Without this, the GetAuraDataByIndex
+// fallback would keep surfacing a dropped aura until its computed expiry —
+// e.g. a Rank 1 buff replaced by Rank 2 (engine drops Rank 1 from the
+// descriptor) would show as a phantom second aura, or a dispelled buff would
+// linger.
+void Evict(uint64_t targetGuid, uint32_t spellId) {
+    if (targetGuid == 0 || spellId == 0)
+        return;
+    for (auto &e : g_cache) {
+        if (e.used && e.targetGuid == targetGuid && e.spellId == spellId) {
+            e.used = false;
+            return;
+        }
+    }
+}
+
+// Wipe the whole cache. Used on a map transition (see OnWorldTick).
+void FlushAll() {
+    for (auto &e : g_cache)
+        e.used = false;
+}
+
+// -1 = no map seen yet (never a valid Map.dbc id), so the first tick just
+// records the current map without flushing.
+int g_lastMapId = -1;
+
+// Drop entries whose timed aura has elapsed so the table doesn't fill with
+// stale combat debuffs. Infinite-duration entries (expirationMs == 0) stay
+// until overwritten.
+//
+// Also flush the entire cache on a map-ID change. A battleground/instance/
+// continent transition (including the teleport out of a BG via /afk) bulk-
+// clears the player's aura descriptor WITHOUT firing per-aura OnAuraRemoved,
+// so entries for auras that are now gone would linger and the
+// GetAuraDataByIndex fallback would keep surfacing them — the "buffs/debuffs
+// stuck after leaving a battleground" report. Every other unit from the old
+// map has despawned too, and the local player's real auras re-sync into the
+// descriptor / PLAYER_BUFF tables on entering the new world, so a full flush
+// loses nothing legitimate. Crucially, the descriptor drops the fallback
+// must survive — rogue stealth and party-range fluctuation — do NOT change
+// the map ID, so they're unaffected.
+void OnWorldTick() {
+    const int mapId = *reinterpret_cast<const int *>(
+        static_cast<uintptr_t>(Offsets::VAR_CURRENT_MAP_ID));
+    if (mapId != g_lastMapId) {
+        if (g_lastMapId != -1)
+            FlushAll();
+        g_lastMapId = mapId;
+    }
+
+    const uint32_t now = NowMs();
+    for (auto &e : g_cache) {
+        if (e.used && e.expirationMs != 0 && now >= e.expirationMs)
+            e.used = false;
+    }
+}
+
+const Tick::WorldTick::AutoSubscribe _tickSub{&OnWorldTick};
+
+// ---- SMSG_SPELL_GO co-hook ----------------------------------------------
+
+// The hit-target list is all we need: each entry is a unit the cast landed
+// on, which is exactly where an aura gets applied. We deliberately stop
+// before the missed-target list / target mask — the post-mask "intended"
+// target is redundant with the hit list for aura purposes, and skipping it
+// keeps the parse short and robust.
+constexpr int kMaxTargets = 16;
+
+using SpellGo_t = void(__fastcall *)(uint64_t *itemGUID, uint64_t *casterGUID,
+                                     uint32_t spellId, CDataStore *packet);
+SpellGo_t g_origSpellGo = nullptr;
+
+void __fastcall SpellGo_h(uint64_t *itemGUID, uint64_t *casterGUID,
+                          uint32_t spellId, CDataStore *packet) {
+    uint64_t targets[kMaxTargets];
+    int numTargets = 0;
+
+    if (packet != nullptr) {
+        const uint32_t savedRead = packet->m_read;
+        Net::Read<int16_t>(packet); // castFlags (unused)
+        const uint8_t numHit = Net::Read<uint8_t>(packet);
+        for (int i = 0; i < numHit; ++i) {
+            const uint64_t guid = Net::Read<uint64_t>(packet);
+            if (numTargets < kMaxTargets)
+                targets[numTargets++] = guid;
+        }
+        packet->m_read = savedRead; // restore so the engine re-parses cleanly
+    }
+
+    g_origSpellGo(itemGUID, casterGUID, spellId, packet);
+
+    const uint64_t caster = (casterGUID != nullptr) ? *casterGUID : 0;
+    if (caster == 0 || spellId == 0)
+        return;
+
+    // Feed the totem tracker BEFORE the aura gate below — a totem summon
+    // applies no aura, so it would otherwise be dropped. Player casts only.
+    if (caster == Unit::Identity::PlayerGuid())
+        Totem::Tracker::OnPlayerSpellGo(spellId);
+
+    const uint8_t *rec = Spell::Lookup::RecordForID(static_cast<int>(spellId));
+    if (!SpellAppliesAura(rec))
+        return;
+
+    const bool casterIsPlayer = (caster == Unit::Identity::PlayerGuid());
+    // Combo-point finishers (Rupture, Kidney Shot, …) have their real
+    // duration computed at cast time from the combo points spent — the
+    // base-duration helper can't know it. ComboDuration mirrors the
+    // server's computation from the CP snapshot its send hook captured;
+    // 0 means "not combo-scaled", fall through to the base path.
+    uint32_t durationMs =
+        casterIsPlayer ? ComboDuration::TryComboScaledMs(rec, spellId) : 0;
+    if (durationMs == 0)
+        durationMs = SpellDurationMs(rec, casterIsPlayer);
+    const uint32_t expirationMs = durationMs > 0 ? NowMs() + durationMs : 0;
+
+    if (numTargets == 0) {
+        // No explicit hit list (self-cast with caster-implicit target).
+        Store(caster, spellId, caster, expirationMs, durationMs, true,
+              KIND_UNKNOWN);
+        return;
+    }
+    for (int i = 0; i < numTargets; ++i)
+        Store(targets[i], spellId, caster, expirationMs, durationMs, true,
+              KIND_UNKNOWN);
+}
+
+const Game::HookAutoRegister _hook{Offsets::FUN_SPELL_GO,
+                                   reinterpret_cast<void *>(&SpellGo_h),
+                                   reinterpret_cast<void **>(&g_origSpellGo)};
+
+// ---- Aura-application co-hooks (timing for proc / triggered auras) -------
+
+// Stamp expiration for an aura that just landed/refreshed on `unit`. Used by
+// both the add and stack-change hooks. No caster is available from these
+// paths, so it stamps timing only with `fromCast=false` — Store skips any
+// entry SpellGo already owns, so a directly-cast aura keeps its talented
+// timing. Base (unmodified) duration is the best estimate without a caster.
+void StampApplication(void *unit, uint32_t spellId, int8_t kind) {
+    if (spellId == 0)
+        return;
+    const uint8_t *rec = Spell::Lookup::RecordForID(static_cast<int>(spellId));
+    if (!SpellAppliesAura(rec))
+        return;
+    const uint64_t unitGuid = Unit::Identity::GuidForObject(unit);
+    if (unitGuid == 0)
+        return;
+    const uint32_t durationMs = SpellDurationMs(rec, /*casterIsPlayer*/ false);
+    const uint32_t expirationMs = durationMs > 0 ? NowMs() + durationMs : 0;
+    Store(unitGuid, spellId, /*casterGuid*/ 0, expirationMs, durationMs,
+          /*fromCast*/ false, kind);
+}
+
+// Classify by the absolute aura slot: 0..BUFF_COUNT-1 = buff (helpful),
+// BUFF_COUNT..TOTAL-1 = debuff (harmful).
+int8_t KindForSlot(int slot) {
+    return slot >= Offsets::UNIT_AURA_BUFF_COUNT ? KIND_HARMFUL : KIND_HELPFUL;
+}
+
+// Bump the player-stat-inputs signal when an aura change hits the LOCAL
+// player — buffs/debuffs move GetSpellBonusHealing's flat and Spirit/Armor
+// terms, so its lazy cache must invalidate. Guarded on the player object so
+// other units' aura churn (combat) doesn't needlessly invalidate it.
+void NotifyIfPlayer(void *unit) {
+    if (static_cast<const uint8_t *>(unit) == Unit::Identity::PlayerObject())
+        Player::StatSignal::Notify();
+}
+
+// OnAuraAdded — a new aura occupies a slot (gives the spellId directly).
+using OnAuraAdded_t = void(__fastcall *)(void *unit, void *edx, uint32_t slot,
+                                         uint32_t spellId);
+OnAuraAdded_t g_origOnAuraAdded = nullptr;
+
+void __fastcall OnAuraAdded_h(void *unit, void *edx, uint32_t slot,
+                              uint32_t spellId) {
+    g_origOnAuraAdded(unit, edx, slot, spellId);
+    StampApplication(unit, spellId, KindForSlot(static_cast<int>(slot)));
+    NotifyIfPlayer(unit);
+}
+
+const Game::HookAutoRegister _hookAuraAdded{
+    Offsets::FUN_ON_AURA_ADDED, reinterpret_cast<void *>(&OnAuraAdded_h),
+    reinterpret_cast<void **>(&g_origOnAuraAdded)};
+
+// OnAuraStacksChanged — an existing aura's stack count changed (e.g. Shadow
+// Weaving climbing). Only the slot is given, so read the spellID back from
+// the unit's aura array. Re-stamps expiration so stacking refreshes count.
+using OnAuraStacksChanged_t = void(__fastcall *)(void *unit, void *edx,
+                                                 int slot, uint8_t stackCount);
+OnAuraStacksChanged_t g_origOnAuraStacksChanged = nullptr;
+
+void __fastcall OnAuraStacksChanged_h(void *unit, void *edx, int slot,
+                                      uint8_t stackCount) {
+    g_origOnAuraStacksChanged(unit, edx, slot, stackCount);
+    StampApplication(
+        unit,
+        Aura::Data::ReadSpellID(static_cast<const uint8_t *>(unit), slot),
+        KindForSlot(slot));
+    NotifyIfPlayer(unit);
+}
+
+const Game::HookAutoRegister _hookAuraStacks{
+    Offsets::FUN_ON_AURA_STACKS_CHANGED,
+    reinterpret_cast<void *>(&OnAuraStacksChanged_h),
+    reinterpret_cast<void **>(&g_origOnAuraStacksChanged)};
+
+// OnAuraRemoved — a descriptor aura slot went empty: the aura fell off, was
+// dispelled, was cancelled by its owner, or was replaced by a higher rank
+// (the diff dispatcher fires Removed(old) + Added(new)). Evict the cache
+// entry so the descriptor-drop fallback stops surfacing it. Same ABI as
+// OnAuraAdded (unit in ecx, slot + spellId on the stack); `slot` is unused
+// here — we evict by spellId.
+//
+// Always evict, even for a death-persistent aura (flask, world buff) on a
+// dead unit: the server keeps those through death WITHOUT changing any
+// field, so death itself fires no OnAuraRemoved. Any removal we do receive
+// for one is therefore genuine — e.g. the owner cancelled the flask while
+// dead — and must clear the cache, or the fallback keeps surfacing a phantom
+// whose SetUnitAura tooltip is empty.
+using OnAuraRemoved_t = void(__fastcall *)(void *unit, void *edx, uint32_t slot,
+                                           uint32_t spellId);
+OnAuraRemoved_t g_origOnAuraRemoved = nullptr;
+
+void __fastcall OnAuraRemoved_h(void *unit, void *edx, uint32_t slot,
+                                uint32_t spellId) {
+    g_origOnAuraRemoved(unit, edx, slot, spellId);
+    (void)slot;
+    Evict(Unit::Identity::GuidForObject(unit), spellId);
+    NotifyIfPlayer(unit);
+}
+
+const Game::HookAutoRegister _hookAuraRemoved{
+    Offsets::FUN_ON_AURA_REMOVED, reinterpret_cast<void *>(&OnAuraRemoved_h),
+    reinterpret_cast<void **>(&g_origOnAuraRemoved)};
+
+} // namespace
+
+bool Get(uint64_t unitGuid, uint32_t spellId, uint64_t *outCaster,
+         uint32_t *outExpirationMs, uint32_t *outDurationMs) {
+    if (unitGuid == 0 || spellId == 0)
+        return false;
+    for (const auto &e : g_cache) {
+        if (e.used && e.targetGuid == unitGuid && e.spellId == spellId) {
+            *outCaster = e.casterGuid;
+            *outExpirationMs = e.expirationMs;
+            *outDurationMs = e.durationMs;
+            return true;
+        }
+    }
+    return false;
+}
+
+void EvictAbsent(uint64_t unitGuid, const uint32_t *presentSpellIds, int count) {
+    if (unitGuid == 0 || presentSpellIds == nullptr || count <= 0)
+        return;
+    for (auto &e : g_cache) {
+        if (!e.used || e.targetGuid != unitGuid)
+            continue;
+        bool present = false;
+        for (int i = 0; i < count; ++i)
+            if (presentSpellIds[i] == e.spellId) {
+                present = true;
+                break;
+            }
+        if (!present)
+            e.used = false;
+    }
+}
+
+int Enumerate(uint64_t unitGuid, bool harmful, CachedAura *out, int maxOut) {
+    if (unitGuid == 0 || out == nullptr || maxOut <= 0)
+        return 0;
+    const int8_t want = harmful ? KIND_HARMFUL : KIND_HELPFUL;
+    const uint32_t now = NowMs();
+    int n = 0;
+    for (const auto &e : g_cache) {
+        if (n >= maxOut)
+            break;
+        if (!e.used || e.targetGuid != unitGuid || e.kind != want)
+            continue;
+        if (e.expirationMs != 0 && now >= e.expirationMs)
+            continue; // expired (infinite-duration entries pass)
+        out[n++] = {e.spellId, e.casterGuid, e.expirationMs, e.durationMs};
+    }
+    return n;
+}
+
+} // namespace Aura::Source

src/aura/Source.h

@@ -0,0 +1,77 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+
+#pragma once
+
+#include <cstdint>
+
+// Aura caster / duration cache, fed by a co-hook on `SMSG_SPELL_GO`
+// (`FUN_SPELL_GO`). The vanilla unit aura array (`UNIT_FIELD_AURA`) stores
+// only spell IDs — it has no record of *who* cast an aura, and no
+// cast/expiration timing for any unit but the local player. The one place
+// the client ever sees the caster + a server-authoritative duration is the
+// `SMSG_SPELL_GO` packet at cast time. We parse it (the same packet
+// nampower parses for its `AURA_CAST_ON_*` events) and remember, per
+// `(targetGuid, spellId)`, who cast it and when it should expire.
+//
+// `Aura::Data::Push` consults this to fill `sourceUnit` (caster, resolved
+// to a unit token) and `expirationTime` for non-player units. The cache is
+// inherently best-effort: it only knows about casts observed since login,
+// and an entry survives until it expires (combat-duration auras) or is
+// evicted under pressure. Misses leave the modern-truthful defaults
+// (`sourceUnit` nil, `expirationTime` 0) in place — same outcome as before
+// this module existed.
+
+namespace Aura::Source {
+
+// Looks up the cached caster + timing for the aura `spellId` currently on
+// the unit identified by `unitGuid`. Returns true and fills the out params
+// on a hit. `*outExpirationMs` is an absolute `GetTickCount`-epoch timestamp
+// (0 = unknown / infinite-duration aura); `*outDurationMs` is the applied
+// duration including the caster's modifiers (talents etc.; 0 = none) — use
+// it for the `duration` field so it stays consistent with `expirationTime`;
+// `*outCaster` is the caster's 64-bit GUID (never 0 on a hit). Returns false
+// on a miss or for zero inputs.
+bool Get(uint64_t unitGuid, uint32_t spellId, uint64_t *outCaster,
+         uint32_t *outExpirationMs, uint32_t *outDurationMs);
+
+// One cached aura, as returned by `Enumerate`.
+struct CachedAura {
+    uint32_t spellId;
+    uint64_t casterGuid;   // 0 = caster unknown (application hook, no SpellGo)
+    uint32_t expirationMs; // 0 = infinite / unknown
+    uint32_t durationMs;   // applied duration (incl. caster mods); 0 = none
+};
+
+// Evicts every cached entry for `unitGuid` whose spellId is NOT present in
+// `presentSpellIds[0..count)`. Used to reconcile the cache against a unit's
+// authoritative descriptor when it is back in view (a populated aura array
+// means the unit is fully synced): an entry the descriptor no longer lists
+// was removed while we couldn't observe it — e.g. a buff the owner cancelled
+// while out of our range, whose `OnAuraRemoved` we never received — so drop
+// it before the descriptor-drop fallback resurfaces it as a phantom. The
+// caller must only invoke this when the descriptor is populated (count > 0);
+// an empty array can't distinguish "out of range" from "genuinely buffless",
+// so reconciling then would wrongly wipe still-valid out-of-range entries.
+void EvictAbsent(uint64_t unitGuid, const uint32_t *presentSpellIds, int count);
+
+// Fills `out` with up to `maxOut` cached, non-expired auras on `unitGuid`
+// whose helpful/harmful classification matches `harmful`. Returns the count
+// written. The classification is recorded from the aura's descriptor slot at
+// application time (`OnAuraAdded`/`OnAuraStacksChanged`); entries we only ever
+// saw via `SMSG_SPELL_GO` have no slot and so an unknown classification —
+// those are excluded (we can't tell which range they belong to).
+//
+// This is the fallback source for `Aura::Data` when the unit descriptor has
+// dropped an aura's slot (rogue stealth, party range fluctuation) even though
+// the aura is still active server-side: the cache survives descriptor clears.
+int Enumerate(uint64_t unitGuid, bool harmful, CachedAura *out, int maxOut);
+
+} // namespace Aura::Source

src/bag/UpdateDelayed.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `BAG_UPDATE_DELAYED` event — fires once per frame in which any
@@ -56,6 +56,7 @@
 
 #include "Game.h"
 #include "Offsets.h"
+#include "bag/UpdateDelayed.h"
 #include "event/Custom.h"
 #include "tick/WorldTick.h"
 
@@ -71,8 +72,15 @@ const Event::Custom::AutoReserve _reserve{kEventName};
 // Single bool, no atomics needed — the engine is single-threaded.
 bool g_pending = false;
 
+// C++ subscribers notified once per bag-change frame (see UpdateDelayed.h).
+AutoSubscribe *g_subs = nullptr;
+
 } // namespace
 
+AutoSubscribe::AutoSubscribe(Callback cb) : cb(cb), next(g_subs) {
+    g_subs = this;
+}
+
 // `FUN_004F91A0` — `__cdecl void()`. Bag-slot diff loop. Walks the
 // 10 bag slots, fires BAG_UPDATE for each that changed.
 using BagSlotDiff_t = void(__cdecl *)();
@@ -123,6 +131,9 @@ void OnWorldTick() {
     const int slot = Event::Custom::Lookup(kEventName);
     if (slot >= 0)
         Event::Custom::Fire(slot, "");
+    // Notify C++ subscribers of the bag-change frame (see UpdateDelayed.h).
+    for (auto *node = g_subs; node != nullptr; node = node->next)
+        node->cb();
 }
 
 static const Game::HookAutoRegister _hookSlotDiff{

src/bag/UpdateDelayed.h

@@ -0,0 +1,39 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+// Authoritative "a bag changed this frame" subscription. `Bag::UpdateDelayed`
+// co-hooks the three (and only three) engine `BAG_UPDATE` fire sites and
+// coalesces them into a single per-frame signal — the same signal that backs
+// the `BAG_UPDATE_DELAYED` event. Subscribe here to run C++ work exactly once
+// per frame in which any bag actually changed, instead of polling every frame.
+//
+// Callbacks fire at the tail of the world tick, after every BAG_UPDATE for the
+// frame has already fired (so bag contents are settled). No firing on frames
+// where nothing changed. Order across subscribers is unspecified.
+//
+// Module pattern, matching `Tick::WorldTick::AutoSubscribe`: declare a
+// file-scope `static const Bag::UpdateDelayed::AutoSubscribe _s{&Callback};`.
+
+namespace Bag::UpdateDelayed {
+
+using Callback = void (*)();
+
+struct AutoSubscribe {
+    explicit AutoSubscribe(Callback cb);
+    Callback cb;
+    AutoSubscribe *next;
+};
+
+} // namespace Bag::UpdateDelayed

src/baselib/MathLib.cpp

@@ -0,0 +1,82 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// Lua 5.1 math-library additions that 1.12's Lua 5.0 is missing:
+//
+//   - `math.fmod(x, y)` — floating-point remainder of `x / y`.
+//   - `math.modf(x)`    — split into integral + fractional parts.
+//   - `math.huge`       — positive infinity constant.
+//
+// `math.fmod` is a pure rename: Lua 5.0 ships the exact same C function under
+// the name `math.mod`; 5.1 renamed the Lua-facing entry to `math.fmod`. We
+// register it as a direct alias of the engine's `math.mod` C function
+// (`FUN_LUA_MATH_FMOD`) — no wrapper. `math.mod` stays available too, so code
+// written for either name works. `modf` and `huge` are genuinely new in 5.1
+// (not in 1.12's mathlib table), so we implement/define them here.
+
+#include "Game.h"
+#include "Offsets.h"
+
+#include <cmath>
+
+namespace BaseLib::MathLib {
+
+namespace {
+
+// `math.fmod` is 5.0's `math.mod` verbatim — register the engine function
+// pointer directly rather than wrapping it.
+const auto Script_math_fmod =
+    reinterpret_cast<Game::Lua::CFunction>(Offsets::FUN_LUA_MATH_FMOD);
+
+// `math.modf(x)` — returns `(integral, fractional)`, the integral part
+// truncated toward zero and the fractional part carrying `x`'s sign
+// (`modf(3.7) → 3, 0.7`; `modf(-3.7) → -3, -0.7`). Matches C `modf` / Lua 5.1.
+int __fastcall Script_math_modf(void *L) {
+    if (!Game::Lua::IsNumber(L, 1)) {
+        Game::Lua::Error(L, "Usage: math.modf(x)");
+        return 0; // unreachable
+    }
+    double integral = 0.0;
+    const double fractional = std::modf(Game::Lua::ToNumber(L, 1), &integral);
+    Game::Lua::PushNumber(L, integral);
+    Game::Lua::PushNumber(L, fractional);
+    return 2;
+}
+
+void RegisterFns() {
+    Game::Lua::RegisterTableFunction("math", "fmod", Script_math_fmod);
+    Game::Lua::RegisterTableFunction("math", "modf", &Script_math_modf);
+
+    // `math.huge` — a numeric constant, not a function. Fetch the (now
+    // guaranteed-present) `math` table and set the field directly.
+    void *L = Game::Lua::State();
+    if (L != nullptr) {
+        Game::Lua::PushString(L, "math");
+        Game::Lua::GetTable(L, Game::Lua::GLOBALS_INDEX); // [math]
+        if (Game::Lua::Type(L, -1) == 5 /* LUA_TTABLE */) {
+            Game::Lua::SetFieldNumber(L, "huge", HUGE_VAL); // math.huge = inf; [math]
+            Game::Lua::SetTop(L, -2);                        // pop [math]
+        } else {
+            Game::Lua::SetTop(L, -2); // pop whatever GetTable returned
+        }
+    }
+}
+
+// Both states are Lua 5.0 and equally missing this; RegisterTableFunction
+// targets whichever state is active in each registration hook.
+const Game::ModuleAutoRegister _autoreg{&RegisterFns};
+const Game::GlueModuleAutoRegister _autoregGlue{&RegisterFns};
+
+} // namespace
+
+} // namespace BaseLib::MathLib

src/baselib/Select.cpp

@@ -0,0 +1,87 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `select(index, ...)` — the Lua 5.1 base-library vararg helper, missing
+// from 1.12's Lua 5.0 (it predates the function). Two forms:
+//   - `select('#', ...)`  → the number of extra arguments.
+//   - `select(n, ...)`    → all arguments from position `n` onward.
+//     `n` may be negative to index from the end (`-1` = the last arg).
+//
+// Ported from Lua 5.1's `luaB_select` (lbaselib.c). The numeric form needs
+// no pushes at all: the varargs are already sitting on the stack at
+// positions `2..top`, so returning `top - n` hands back exactly the slice
+// from `n+1` onward — the same trick the reference implementation uses.
+// The `'#'` form pushes the count and returns 1.
+//
+// Registered on BOTH Lua states (in-game + glue): it's a language-level
+// helper, state-agnostic, and both states are 5.0 and equally missing it.
+
+#include "Game.h"
+
+namespace BaseLib::Select {
+
+namespace {
+
+int __fastcall Script_select(void *L) {
+    const int n = Game::Lua::GetTop(L);
+    if (n < 1) {
+        Game::Lua::Error(L, "bad argument #1 to 'select' (number expected, got no value)");
+        return 0; // unreachable
+    }
+
+    // `select('#', ...)` — count form. Only inspect the string when the
+    // arg *is* a string: calling lua_tostring on a number would convert
+    // the stack value in place (Lua 5.0/5.1 semantics), corrupting arg 1.
+    if (Game::Lua::Type(L, 1) == Game::Lua::TYPE_STRING) {
+        const char *s = Game::Lua::ToString(L, 1);
+        if (s != nullptr && s[0] == '#') {
+            Game::Lua::PushNumber(L, static_cast<double>(n - 1));
+            return 1;
+        }
+        // A non-'#' string falls through: lua_isnumber accepts numeric
+        // strings (e.g. "2"), matching the reference's luaL_checkint
+        // coercion; a non-numeric string errors below.
+    }
+
+    if (!Game::Lua::IsNumber(L, 1)) {
+        Game::Lua::Error(L, "bad argument #1 to 'select' (number expected)");
+        return 0; // unreachable
+    }
+    int i = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    if (i < 0)
+        i = n + i; // negative indexes count back from the last argument
+    else if (i > n)
+        i = n;
+    if (i < 1) {
+        Game::Lua::Error(L, "bad argument #1 to 'select' (index out of range)");
+        return 0; // unreachable
+    }
+    // The varargs from position i+1..n are already on the stack; returning
+    // their count hands exactly that slice back to the caller.
+    return n - i;
+}
+
+void RegisterInGame() {
+    Game::Lua::RegisterGlobalFunction("select", &Script_select);
+}
+
+void RegisterGlue() {
+    Game::Lua::RegisterGlueFunction("select", &Script_select);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterInGame};
+const Game::GlueModuleAutoRegister _autoregGlue{&RegisterGlue};
+
+} // namespace
+
+} // namespace BaseLib::Select

src/baselib/StringLib.cpp

@@ -0,0 +1,282 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// String helpers that 1.12's Lua 5.0 is missing:
+//
+//   - `string.match(s, pattern [, init])` — first-match extraction (5.1).
+//   - `string.gmatch(s, pattern)`         — match iterator (5.1).
+//   - `strsplit(sep, str [, pieces])`     — WoW global; split on any char.
+//   - `strjoin(delimiter, ...)`           — WoW global; join varargs.
+//   - `strtrim(str [, chars])`            — WoW global; trim a char set.
+//   - `strreplace(str, find, replace)`    — plain-text replace (see below).
+//   - `string.reverse(s)` / `strrev(s)`   — 5.1 string function, missing in 5.0.
+//
+// The two pattern `string.*` ones reuse machinery 5.0 already ships:
+//   - `match` is `find` returning captures / the whole match instead of the
+//     start/end indices — so we call the engine's `str_find` and transform.
+//   - `gmatch` is exactly 5.0's `string.gfind` (renamed in 5.1); we register
+//     it as a direct alias of the engine's `gfind` C function.
+// `strsplit` is a hand-rolled port of 3.3.5's `strsplit` (see below).
+//
+// NOTE: only the `string.foo(s, ...)` call form works — NOT the
+// `("x"):foo(...)` method sugar. WoW's Lua VM strips type-metatables for
+// every value except tables/userdata (both `lua_setmetatable` and the VM's
+// `luaT_gettmbyobj` hard-return "no metamethod" for strings), so strings have
+// no `__index`, and there's no client-side way to add one short of hooking a
+// hot VM-core function. This is the long-standing vanilla constraint.
+
+#include "Game.h"
+#include "Offsets.h"
+
+#include <cstddef>
+#include <cstring>
+#include <string>
+
+namespace BaseLib::StringLib {
+
+namespace {
+
+// `string.match(s, pattern [, init])`. Calls the engine `str_find` and
+// reshapes its result: no match → nil; match with captures → the captures;
+// match with no captures → the whole matched substring.
+int __fastcall Script_string_match(void *L) {
+    // Normalize to exactly (s, pattern, init): pad missing args with nil so
+    // str_find defaults `init` to 1, and drop any stray 4th value so it can't
+    // be misread as find's `plain` flag (match has no plain form).
+    Game::Lua::SetTop(L, 3);
+    constexpr int kBase = 3;
+
+    auto strFind = reinterpret_cast<Game::Lua::CFunction>(Offsets::FUN_LUA_STR_FIND);
+    const int nres = strFind(L); // pushes start,end,caps.. above kBase, or a nil
+
+    if (nres <= 1) {
+        // No match. str_find pushed the nil (return 1); guard the degenerate
+        // nres==0 case by pushing our own nil so the shape holds.
+        if (nres < 1)
+            Game::Lua::PushNil(L);
+        return 1;
+    }
+
+    if (nres == 2) {
+        // No captures → the whole matched substring s[start..end] (1-based,
+        // inclusive). An empty match has end == start-1 → an empty string.
+        const int start = static_cast<int>(Game::Lua::ToNumber(L, kBase + 1));
+        const int end = static_cast<int>(Game::Lua::ToNumber(L, kBase + 2));
+        // str_find already coerced arg 1 to a string, so this is safe.
+        const char *s = Game::Lua::ToString(L, 1);
+        Game::Lua::SetTop(L, kBase); // drop start, end
+        const size_t len = (end >= start) ? static_cast<size_t>(end - start + 1) : 0;
+        Game::Lua::PushLString(L, s + start - 1, static_cast<unsigned int>(len));
+        return 1;
+    }
+
+    // Captures present → drop start & end, hand back only the captures.
+    Game::Lua::Remove(L, kBase + 1); // remove start; end → kBase+1, caps → kBase+2..
+    Game::Lua::Remove(L, kBase + 1); // remove end;   caps → kBase+1..
+    return nres - 2;
+}
+
+// `string.gmatch` is 5.0's `string.gfind` verbatim — register the engine
+// function pointer directly rather than wrapping it.
+const auto Script_string_gmatch =
+    reinterpret_cast<Game::Lua::CFunction>(Offsets::FUN_LUA_STR_GFIND);
+
+// `strsplit(sep, str [, pieces])` — the WoW global (also aliased as
+// `string.split`), split `str` on ANY character in `sep` and return the
+// pieces as multiple values. `pieces > 0` caps the result count, with the
+// unsplit remainder as the final piece; `0` / omitted = unlimited. Ported
+// from 3.3.5's `strsplit` (FUN_00816a60) with one deliberate change: we do
+// NOT `lua_settop(L, 0)` up front. Popping the args would leave the source
+// string unreferenced, so a GC step triggered by a `pushlstring` could free
+// the very buffer we're still scanning. Keeping the args on the stack keeps
+// the source GC-rooted; Lua returns the top N values (our pieces) regardless
+// of the args sitting below them. Each push is guarded by `lua_checkstack`
+// (this pushes an unbounded number of results), erroring like 3.3.5 on
+// genuine stack exhaustion.
+int __fastcall Script_strsplit(void *L) {
+    const char *sep = Game::Lua::ToString(L, 1);
+    const char *str = Game::Lua::ToString(L, 2);
+    if (sep == nullptr || str == nullptr) {
+        Game::Lua::Error(L, "Usage: strsplit(\"separators\", str [, pieces])");
+        return 0; // unreachable
+    }
+    const int pieces =
+        Game::Lua::IsNumber(L, 3) ? static_cast<int>(Game::Lua::ToNumber(L, 3)) : 0;
+
+    const char *segStart = str;
+    int count = 0;
+    // Only scan for separators while unlimited (pieces == 0) or the cap
+    // hasn't been reached (pieces > 1). pieces == 1 (or <= 0 but non-zero)
+    // yields the whole string as a single piece — matches 3.3.5.
+    if (pieces == 0 || pieces > 1) {
+        for (const char *p = str; *p != '\0'; ++p) {
+            bool isSep = false;
+            for (const char *s = sep; *s != '\0'; ++s) {
+                if (*p == *s) {
+                    isSep = true;
+                    break;
+                }
+            }
+            if (!isSep)
+                continue;
+            ++count;
+            if (Game::Lua::CheckStack(L, count) == 0) {
+                Game::Lua::Error(L, "strsplit(): Stack overflow");
+                return 0; // unreachable
+            }
+            Game::Lua::PushLString(L, segStart,
+                                   static_cast<unsigned int>(p - segStart));
+            segStart = p + 1;
+            if (count == pieces - 1)
+                break; // cap hit; remainder becomes the final piece
+        }
+    }
+    if (Game::Lua::CheckStack(L, count + 1) == 0) {
+        Game::Lua::Error(L, "strsplit(): Stack overflow");
+        return 0; // unreachable
+    }
+    Game::Lua::PushString(L, segStart); // final piece (remainder to end)
+    return count + 1;
+}
+
+// `strjoin(delimiter, ...)` — the inverse of `strsplit`: concatenate the
+// vararg pieces with `delimiter` between each. Standard WoW global (FrameXML
+// defines it in Lua; there's no C original to mirror). A nil / non-coercible
+// piece is treated as an empty string rather than erroring, so the delimiter
+// placement stays predictable. `strjoin(",")` with no pieces returns "".
+int __fastcall Script_strjoin(void *L) {
+    const char *delim = Game::Lua::ToString(L, 1);
+    if (delim == nullptr) {
+        Game::Lua::Error(L, "Usage: strjoin(delimiter, ...)");
+        return 0; // unreachable
+    }
+    const unsigned delimLen = Game::Lua::StrLen(L, 1);
+    const int top = Game::Lua::GetTop(L);
+
+    std::string out; // no Error() past this point — a longjmp would leak it
+    for (int i = 2; i <= top; ++i) {
+        if (i > 2)
+            out.append(delim, delimLen);
+        const char *piece = Game::Lua::ToString(L, i);
+        if (piece != nullptr)
+            out.append(piece, Game::Lua::StrLen(L, i));
+    }
+    Game::Lua::PushLString(L, out.data(), static_cast<unsigned int>(out.size()));
+    return 1;
+}
+
+// `strtrim(str [, chars])` — remove any of the characters in `chars` from
+// both ends of `str` (default: whitespace). `chars` is a literal set of
+// characters, not a pattern. Standard WoW global. Two-ended scan — no
+// allocation, embedded NULs preserved (bounds come from the Lua length).
+int __fastcall Script_strtrim(void *L) {
+    const char *str = Game::Lua::ToString(L, 1);
+    if (str == nullptr) {
+        Game::Lua::Error(L, "Usage: strtrim(str [, chars])");
+        return 0; // unreachable
+    }
+    const unsigned len = Game::Lua::StrLen(L, 1);
+    const char *chars = Game::Lua::IsString(L, 2) ? Game::Lua::ToString(L, 2)
+                                                  : " \t\n\v\f\r";
+
+    bool trim[256] = {false};
+    for (const char *c = chars; *c != '\0'; ++c)
+        trim[static_cast<unsigned char>(*c)] = true;
+
+    unsigned start = 0, end = len;
+    while (start < end && trim[static_cast<unsigned char>(str[start])])
+        ++start;
+    while (end > start && trim[static_cast<unsigned char>(str[end - 1])])
+        --end;
+    Game::Lua::PushLString(L, str + start, end - start);
+    return 1;
+}
+
+// `strreplace(str, find, replace)` — replace every occurrence of the literal
+// substring `find` with `replace`; returns `(result, count)`. NOT a stock WoW
+// global and NOT pattern-based (that's `gsub`) — a plain-text replace that
+// needs no magic-character escaping. Empty `find` returns `str` unchanged
+// (count 0) rather than looping forever.
+int __fastcall Script_strreplace(void *L) {
+    const char *str = Game::Lua::ToString(L, 1);
+    const char *find = Game::Lua::ToString(L, 2);
+    const char *repl = Game::Lua::ToString(L, 3);
+    if (str == nullptr || find == nullptr || repl == nullptr) {
+        Game::Lua::Error(L, "Usage: strreplace(str, find, replace)");
+        return 0; // unreachable
+    }
+    const unsigned strLen = Game::Lua::StrLen(L, 1);
+    const unsigned findLen = Game::Lua::StrLen(L, 2);
+    const unsigned replLen = Game::Lua::StrLen(L, 3);
+
+    if (findLen == 0) { // nothing to match — return input unchanged
+        Game::Lua::PushLString(L, str, strLen);
+        Game::Lua::PushNumber(L, 0.0);
+        return 2;
+    }
+
+    std::string out; // no Error() past this point
+    int count = 0;
+    unsigned i = 0;
+    while (i < strLen) {
+        if (i + findLen <= strLen && std::memcmp(str + i, find, findLen) == 0) {
+            out.append(repl, replLen);
+            i += findLen;
+            ++count;
+        } else {
+            out.push_back(str[i]);
+            ++i;
+        }
+    }
+    Game::Lua::PushLString(L, out.data(), static_cast<unsigned int>(out.size()));
+    Game::Lua::PushNumber(L, static_cast<double>(count));
+    return 2;
+}
+
+// `string.reverse(s)` / `strrev(s)` — return `s` with its bytes reversed.
+// Lua 5.1 added `string.reverse`; 5.0's strlib lacks it. Byte-wise (not
+// UTF-8 aware), matching stock Lua; embedded NULs preserved (bounds from the
+// Lua length).
+int __fastcall Script_string_reverse(void *L) {
+    const char *s = Game::Lua::ToString(L, 1);
+    if (s == nullptr) {
+        Game::Lua::Error(L, "Usage: string.reverse(s)");
+        return 0; // unreachable
+    }
+    const unsigned len = Game::Lua::StrLen(L, 1);
+    std::string out(len, '\0'); // no Error() past this point
+    for (unsigned i = 0; i < len; ++i)
+        out[i] = s[len - 1 - i];
+    Game::Lua::PushLString(L, out.data(), len);
+    return 1;
+}
+
+void RegisterFns() {
+    Game::Lua::RegisterTableFunction("string", "match", &Script_string_match);
+    Game::Lua::RegisterTableFunction("string", "gmatch", Script_string_gmatch);
+    Game::Lua::RegisterTableFunction("string", "reverse", &Script_string_reverse);
+    Game::Lua::RegisterGlobalFunction("strsplit", &Script_strsplit);
+    Game::Lua::RegisterGlobalFunction("strjoin", &Script_strjoin);
+    Game::Lua::RegisterGlobalFunction("strtrim", &Script_strtrim);
+    Game::Lua::RegisterGlobalFunction("strreplace", &Script_strreplace);
+    Game::Lua::RegisterGlobalFunction("strrev", &Script_string_reverse);
+}
+
+// Both states are Lua 5.0 and equally missing these; RegisterTableFunction
+// targets whichever state is active in each registration hook.
+const Game::ModuleAutoRegister _autoreg{&RegisterFns};
+const Game::GlueModuleAutoRegister _autoregGlue{&RegisterFns};
+
+} // namespace
+
+} // namespace BaseLib::StringLib

src/bindings/Bindings.xml

@@ -0,0 +1,20 @@
+<!-- Spliced into the engine's Interface\FrameXML\Bindings.xml at
+     load time by src/bindings/Inject.cpp. The `header` attribute on
+     the root tag tells the splicer which engine section to extend —
+     it picks the appropriate insertion point so the bindings appear
+     at the tail of that group in the keybind UI. The engine's own
+     XML parser ignores attributes on the root tag, so this is
+     metadata for the splicer only. -->
+<Bindings header="TARGETING">
+	<Binding name="FOCUSTARGET">
+		FocusUnit("target");
+	</Binding>
+	<Binding name="TARGETFOCUS">
+		TargetUnit("focus");
+	</Binding>
+	<Binding name="AOELOOT">
+          if not C_Loot.IsScanInProgress() then
+		     C_Loot.ScanNearbyLoot()
+          end
+	</Binding>
+</Bindings>

src/bindings/Inject.cpp

@@ -0,0 +1,297 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// Inject ClassicAPI-owned bindings into a chosen engine section.
+//
+// Why a file-read hook rather than an addon-side Bindings.xml: vanilla
+// stores every binding in a single linearly-indexed table, and the
+// keybind UI walks that table in index order with `HEADER_*` pseudo-
+// entries splitting groups. Addon Bindings.xml files get parsed
+// AFTER FrameXML, so even with `header="TARGETING"` an addon binding
+// receives a display index higher than every engine binding — it
+// renders orphaned at the very bottom of the keybind list rather than
+// under TARGETING.
+//
+// To land inside a specific section, the binding's display index has
+// to fall between that section's `HEADER_*` entry and the next one.
+// The cleanest way to arrange that is to splice the bindings into the
+// FrameXML file the engine itself parses, so they take their indices
+// from the same running counter every native binding does.
+//
+// What gets spliced is driven by `src/bindings/Bindings.xml`. The
+// root `<Bindings header="X">` tag names the engine section to extend
+// (e.g. `"TARGETING"`); the inner `<Binding>` children are spliced
+// verbatim. The splicer locates `header="X"` in the engine file
+// (which appears on the first binding of section X), then the next
+// `header="..."` after that (start of the following section), and
+// inserts our content just before that next-section marker — so our
+// entries land at the tail of section X. If X is the last section in
+// the file, the splice goes just before `</Bindings>`.
+//
+// The engine's binding parser is `FUN_004b6f70`. It calls
+// `FUN_FILE_READ` (`0x00648620`) to load the file, then walks `<Binding>`
+// elements assigning each the next display index from a running
+// counter. By the time our injected bindings are processed, the
+// engine has already emitted the section's `HEADER_*` and a sequence
+// of native entries; ours append to that sequence and the next
+// section's header follows.
+
+#include "Inject.h"
+#include "Offsets.h"
+
+#include "embedded_bindings.h"
+
+#include <cstdio>
+#include <cstring>
+
+namespace Bindings::Inject {
+
+namespace {
+
+constexpr const char *kFrameXMLBindingsPath = "Interface\\FrameXML\\Bindings.xml";
+
+// Parsed view of `src/bindings/Bindings.xml`:
+//   - `header` is the value of `header="..."` on the root `<Bindings>`
+//     tag. Tells the splicer which engine section to extend.
+//   - `innerData / innerSize` point at the bytes between the
+//     `<Bindings ...>` opening and `</Bindings>` closing tags.
+//
+// All-zero fields mean "embedded buffer is malformed" — defensive,
+// shouldn't happen since the source is build-time-validated. Splice
+// is skipped (engine sees its original Bindings.xml unchanged).
+struct EmbeddedConfig {
+    char header[64];
+    const char *innerData;
+    size_t innerSize;
+};
+
+// Advances `p` past any `<!-- ... -->` comment block starting at the
+// current position. Returns the new position (past the closing `-->`)
+// if a comment was skipped, or `p` unchanged if no comment was at
+// the current position. Caps at `end` if the comment is unterminated.
+const char *SkipCommentIfAny(const char *p, const char *end) {
+    if (p + 4 > end) return p;
+    if (std::memcmp(p, "<!--", 4) != 0) return p;
+    p += 4;
+    while (p + 3 <= end) {
+        if (std::memcmp(p, "-->", 3) == 0)
+            return p + 3;
+        ++p;
+    }
+    return end;
+}
+
+// Linear scan for `marker` in `[start, end)`, skipping any `<!--...-->`
+// comment blocks (where unrelated occurrences of XML tags might live).
+const char *FindOutsideComment(const char *start, const char *end, const char *marker) {
+    const size_t markerLen = std::strlen(marker);
+    const char *p = start;
+    while (p + markerLen <= end) {
+        const char *afterComment = SkipCommentIfAny(p, end);
+        if (afterComment != p) {
+            p = afterComment;
+            continue;
+        }
+        if (std::memcmp(p, marker, markerLen) == 0)
+            return p;
+        ++p;
+    }
+    return nullptr;
+}
+
+// Parses `header="X"` out of the byte range `[tagStart, tagEnd)` (the
+// opening `<Bindings ...>` tag). Copies the value into `out` (size
+// `outSize`) and returns true on success.
+bool ExtractHeaderAttr(const char *tagStart, const char *tagEnd,
+                       char *out, size_t outSize) {
+    static constexpr const char kAttr[] = "header=\"";
+    constexpr size_t kAttrLen = sizeof(kAttr) - 1;
+    for (const char *p = tagStart; p + kAttrLen < tagEnd; ++p) {
+        if (std::memcmp(p, kAttr, kAttrLen) != 0) continue;
+        const char *valStart = p + kAttrLen;
+        const char *valEnd = valStart;
+        while (valEnd < tagEnd && *valEnd != '"') ++valEnd;
+        const size_t len = static_cast<size_t>(valEnd - valStart);
+        if (len == 0 || len + 1 > outSize) return false;
+        std::memcpy(out, valStart, len);
+        out[len] = '\0';
+        return true;
+    }
+    return false;
+}
+
+EmbeddedConfig ResolveEmbeddedConfig() {
+    EmbeddedConfig out = {};
+    const char *content = reinterpret_cast<const char *>(kEmbeddedBindingsXml);
+    const char *end = content + kEmbeddedBindingsXmlSize;
+
+    // Locate `<Bindings` opening tag (skipping any comment blocks
+    // that mention the tag literally for documentation purposes).
+    const char *open = FindOutsideComment(content, end, "<Bindings");
+    if (open == nullptr) return out;
+
+    // Find the closing `>` of the opening tag.
+    const char *tagEnd = open;
+    while (tagEnd < end && *tagEnd != '>') ++tagEnd;
+    if (tagEnd == end) return out;
+
+    // Pull out the `header="..."` attribute. Required — this tells
+    // the splicer which engine section to extend.
+    if (!ExtractHeaderAttr(open, tagEnd, out.header, sizeof(out.header)))
+        return out;
+
+    const char *innerStart = tagEnd + 1;
+    const char *close = FindOutsideComment(innerStart, end, "</Bindings>");
+    if (close == nullptr || close < innerStart) {
+        out.header[0] = '\0';
+        return out;
+    }
+
+    out.innerData = innerStart;
+    out.innerSize = static_cast<size_t>(close - innerStart);
+    return out;
+}
+
+// Computes the byte offset in the engine's Bindings.xml buffer where
+// our entries should be spliced — i.e., the tail of the section
+// identified by `headerName`. Strategy:
+//
+//   1. Find `header="<HEADER>"` in the engine's buffer (skipping
+//      comments). This is the attribute the engine itself uses on
+//      the FIRST binding of each section, so this finds where that
+//      section *starts*.
+//   2. Find the NEXT `header="` after that. That marks the start of
+//      the FOLLOWING section.
+//   3. Back up from that next-header position to the `<` of the
+//      `<Binding` tag containing it — that's our splice point.
+//   4. If there's no next header (last section in the file), splice
+//      just before `</Bindings>`.
+//
+// Returns `nullptr` if step 1 fails (header missing from engine file
+// — e.g., a heavily-modified FrameXML). Caller falls back to passing
+// the original buffer through unchanged.
+const char *FindSplicePosition(const char *content, size_t size,
+                              const char *headerName) {
+    const char *end = content + size;
+
+    char headerNeedle[80];
+    std::snprintf(headerNeedle, sizeof(headerNeedle),
+                  "header=\"%s\"", headerName);
+
+    const char *sectionStart = FindOutsideComment(content, end, headerNeedle);
+    if (sectionStart == nullptr) return nullptr;
+
+    // Walk past the matched attribute, then look for the next
+    // `header="` anywhere later in the file.
+    const char *afterCurrent = sectionStart + std::strlen(headerNeedle);
+    const char *nextHeader = FindOutsideComment(afterCurrent, end, "header=\"");
+
+    if (nextHeader != nullptr) {
+        // Back up to the `<` of the `<Binding` tag that owns this
+        // next-header attribute — that `<` is where the next section
+        // visually starts, and we splice immediately before it.
+        const char *p = nextHeader;
+        while (p > content && *p != '<') --p;
+        return p;
+    }
+
+    // Last section in the file — splice just before `</Bindings>`.
+    return FindOutsideComment(content, end, "</Bindings>");
+}
+
+char NormalizeChar(char c) {
+    if (c == '/') return '\\';
+    if (c >= 'A' && c <= 'Z') return static_cast<char>(c + 32);
+    return c;
+}
+
+bool PathEqualsCI(const char *a, const char *b) {
+    while (*a != '\0' && *b != '\0') {
+        if (NormalizeChar(*a) != NormalizeChar(*b)) return false;
+        ++a; ++b;
+    }
+    return *a == *b;
+}
+
+using SMemAlloc_t = void *(__stdcall *)(size_t size, const char *file, int line, int flags);
+using SMemFree_t = void(__stdcall *)(void *buf, const char *file, int line, int flags);
+
+} // namespace
+
+bool TryHandle(int unused, const char *path, void **outBuf, size_t *outSize,
+               size_t extraBytes, int flag1, int flag2, FileReadFn original) {
+    if (path == nullptr || !PathEqualsCI(path, kFrameXMLBindingsPath))
+        return false;
+
+    // Pull the real file through the original reader with the caller's
+    // requested `extraBytes` honored — the original allocates a Storm
+    // buffer of `fileSize + extraBytes` and zero-fills the tail.
+    void *origBuf = nullptr;
+    size_t origSize = 0;
+    const int readOk = original(unused, path, &origBuf, &origSize,
+                                 extraBytes, flag1, flag2);
+    if (readOk == 0 || origBuf == nullptr)
+        return false;
+
+    static const EmbeddedConfig config = ResolveEmbeddedConfig();
+    if (config.innerData == nullptr || config.innerSize == 0 ||
+        config.header[0] == '\0') {
+        // Embedded XML is missing the `<Bindings header="...">` root
+        // or the `</Bindings>` close tag. Pass the original through.
+        if (outBuf != nullptr) *outBuf = origBuf;
+        if (outSize != nullptr) *outSize = origSize;
+        return true;
+    }
+
+    const char *content = static_cast<const char *>(origBuf);
+    const char *splice = FindSplicePosition(content, origSize, config.header);
+    if (splice == nullptr) {
+        // Requested section isn't present in this engine file (heavily
+        // modified FrameXML or different build). Pass through unchanged
+        // rather than risking corruption.
+        if (outBuf != nullptr) *outBuf = origBuf;
+        if (outSize != nullptr) *outSize = origSize;
+        return true;
+    }
+
+    const size_t splicePos = static_cast<size_t>(splice - content);
+    const size_t newSize = origSize + config.innerSize;
+
+    auto SMemAlloc = reinterpret_cast<SMemAlloc_t>(Offsets::FUN_STORM_SMEM_ALLOC);
+    auto SMemFree = reinterpret_cast<SMemFree_t>(Offsets::FUN_STORM_SMEM_FREE);
+
+    void *newBuf = SMemAlloc(newSize + extraBytes, __FILE__, __LINE__, 0);
+    if (newBuf == nullptr) {
+        // Allocation failed — fall back to the original buffer so the
+        // engine still loads its own bindings.
+        if (outBuf != nullptr) *outBuf = origBuf;
+        if (outSize != nullptr) *outSize = origSize;
+        return true;
+    }
+
+    auto *dest = static_cast<char *>(newBuf);
+    std::memcpy(dest, content, splicePos);
+    std::memcpy(dest + splicePos, config.innerData, config.innerSize);
+    std::memcpy(dest + splicePos + config.innerSize,
+                content + splicePos, origSize - splicePos);
+    if (extraBytes > 0)
+        std::memset(dest + newSize, 0, extraBytes);
+
+    SMemFree(origBuf, __FILE__, __LINE__, 0);
+
+    if (outBuf != nullptr) *outBuf = newBuf;
+    if (outSize != nullptr) *outSize = newSize;
+    return true;
+}
+
+} // namespace Bindings::Inject

src/bindings/Inject.h

@@ -0,0 +1,37 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <cstddef>
+
+namespace Bindings::Inject {
+
+// `FUN_FILE_READ` shape — Storm-style: __stdcall, returns 1 on success
+// with the buffer allocated via SMemAlloc into `*outBuf` (size in
+// `*outSize`, plus `extraBytes` of trailing zero padding).
+using FileReadFn = int(__stdcall *)(int unused, const char *path,
+                                     void **outBuf, size_t *outSize,
+                                     size_t extraBytes,
+                                     int flag1, int flag2);
+
+// Path-matches `Interface\FrameXML\Bindings.xml`. On match: fetches
+// the real file via `original`, splices our ClassicAPI bindings into
+// the TARGETING block, and returns `true` with `*outBuf` / `*outSize`
+// set to a fresh Storm buffer the caller can SMemFree normally.
+// Returns `false` for any other path — caller should fall through to
+// its own logic.
+bool TryHandle(int unused, const char *path, void **outBuf, size_t *outSize,
+               size_t extraBytes, int flag1, int flag2, FileReadFn original);
+
+} // namespace Bindings::Inject

src/cache/QueryLoad.cpp

@@ -0,0 +1,224 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#include "cache/QueryLoad.h"
+
+#include "Game.h"
+#include "Offsets.h"
+#include "event/Custom.h"
+#include "tick/WorldTick.h"
+
+#include <cstdint>
+
+namespace Cache::QueryLoad {
+
+namespace {
+
+// A cache class's `_GetRecord`. callback=nullptr → pure peek (returns the
+// loaded data block or nullptr, no query). Non-null callback → also fires
+// the network query on a miss and stores `(callback, userData)` on the
+// entry's pending list. dedup=1 so repeat fetches for the same id before
+// the response lands don't queue the callback twice.
+using GetCacheRecord_t = const uint8_t *(__thiscall *)(void *cache, uint32_t id,
+                                                       const uint64_t *guid, void *callback,
+                                                       void *userData, char dedup);
+
+// A cache class's response parser, which we hook (e.g.
+// FUN_CREATURE_QUERY_RESPONSE / FUN_GAMEOBJECT_QUERY_RESPONSE).
+using CacheResponse_t = void(__thiscall *)(void *cache, void *packetReader, int flag);
+
+// Engine callback shape (__stdcall, ret 8) — see Item::Data. We only pass
+// it to make `_GetRecord` send the query (the trigger is callback != 0);
+// completion is observed via the response hook + tick sweep.
+void __stdcall NoOpCallback(void * /*userData*/, int /*success*/) {}
+
+const uint8_t *CacheFetch(uintptr_t getRecord, void *cache, uint32_t id, void *callback) {
+    auto fn = reinterpret_cast<GetCacheRecord_t>(getRecord);
+    const uint64_t zeroGuid = 0;
+    void *userData =
+        callback ? reinterpret_cast<void *>(static_cast<uintptr_t>(id)) : nullptr;
+    return fn(cache, id, &zeroGuid, callback, userData, 1);
+}
+
+struct Pending {
+    uint32_t id;
+    int ticksWaiting;
+};
+
+constexpr int kMaxCaches = 8;
+constexpr int kMaxPending = 256;
+constexpr int kMaxWaitTicks = 1200; // give up and fire failure after this many WorldTicks
+
+struct Registered {
+    void *cache;
+    const char *eventName;
+    uintptr_t getRecord; // this cache class's _GetRecord
+    Pending pending[kMaxPending];
+    int pendingCount;
+};
+
+Registered g_caches[kMaxCaches];
+int g_cacheCount = 0;
+
+Registered *Find(void *cache) {
+    for (int i = 0; i < g_cacheCount; ++i) {
+        if (g_caches[i].cache == cache)
+            return &g_caches[i];
+    }
+    return nullptr;
+}
+
+void Fire(const Registered *r, uint32_t id, bool success) {
+    Event::Custom::FireIdSuccess(Event::Custom::Lookup(r->eventName),
+                                 static_cast<int>(id), success);
+}
+
+int FindPending(const Registered *r, uint32_t id) {
+    for (int i = 0; i < r->pendingCount; ++i) {
+        if (r->pending[i].id == id)
+            return i;
+    }
+    return -1;
+}
+
+void RemovePendingAt(Registered *r, int idx) {
+    --r->pendingCount;
+    if (idx != r->pendingCount)
+        r->pending[idx] = r->pending[r->pendingCount];
+}
+
+bool IsLoaded(const Registered *r, uint32_t id) {
+    return CacheFetch(r->getRecord, r->cache, id, nullptr) != nullptr;
+}
+
+// Fire + remove any pending id whose entry is now loaded.
+void Sweep(Registered *r) {
+    for (int i = 0; i < r->pendingCount;) {
+        if (IsLoaded(r, r->pending[i].id)) {
+            const uint32_t id = r->pending[i].id;
+            RemovePendingAt(r, i);
+            Fire(r, id, true);
+            continue;
+        }
+        ++i;
+    }
+}
+
+// Shared post-response dispatch: a parser for `cache` just ran, so sweep
+// that cache's pending set (no-op for caches we don't track).
+void DispatchSweep(void *cache) {
+    Registered *r = Find(cache);
+    if (r != nullptr)
+        Sweep(r);
+}
+
+// One response-handler hook per cache class. Each calls its own original
+// trampoline (the parser fills the entry + walks the engine's own
+// callback list), then sweeps via the shared dispatch. `__thiscall`
+// mimicked as `__fastcall(ecx, edx_unused, …)`.
+using Trampoline_t = void(__fastcall *)(void *cache, void *edx, void *packetReader, int flag);
+
+CacheResponse_t g_origCreatureParser = nullptr;
+void __fastcall CreatureParser_h(void *cache, void * /*edx*/, void *packetReader, int flag) {
+    reinterpret_cast<Trampoline_t>(g_origCreatureParser)(cache, nullptr, packetReader, flag);
+    DispatchSweep(cache);
+}
+
+CacheResponse_t g_origGameObjectParser = nullptr;
+void __fastcall GameObjectParser_h(void *cache, void * /*edx*/, void *packetReader, int flag) {
+    reinterpret_cast<Trampoline_t>(g_origGameObjectParser)(cache, nullptr, packetReader, flag);
+    DispatchSweep(cache);
+}
+
+const Game::HookAutoRegister _hookCreature{
+    Offsets::FUN_CREATURE_QUERY_RESPONSE, reinterpret_cast<void *>(&CreatureParser_h),
+    reinterpret_cast<void **>(&g_origCreatureParser)};
+const Game::HookAutoRegister _hookGameObject{
+    Offsets::FUN_GAMEOBJECT_QUERY_RESPONSE, reinterpret_cast<void *>(&GameObjectParser_h),
+    reinterpret_cast<void **>(&g_origGameObjectParser)};
+
+// Timeout + safety net. The hooks cover the happy path; this fires
+// failure for ids that never resolve after `kMaxWaitTicks`, and
+// re-checks loaded as a backstop for fills observed off the hook path.
+void OnWorldTick() {
+    for (int c = 0; c < g_cacheCount; ++c) {
+        Registered *r = &g_caches[c];
+        for (int i = 0; i < r->pendingCount;) {
+            if (IsLoaded(r, r->pending[i].id)) {
+                const uint32_t id = r->pending[i].id;
+                RemovePendingAt(r, i);
+                Fire(r, id, true);
+                continue;
+            }
+            if (r->pending[i].ticksWaiting >= kMaxWaitTicks) {
+                const uint32_t id = r->pending[i].id;
+                RemovePendingAt(r, i);
+                Fire(r, id, false);
+                continue;
+            }
+            ++r->pending[i].ticksWaiting;
+            ++i;
+        }
+    }
+}
+
+const Tick::WorldTick::AutoSubscribe _tickSub{&OnWorldTick};
+
+} // namespace
+
+void Register(void *cacheInstance, const char *eventName, uintptr_t getRecordAddr) {
+    if (cacheInstance == nullptr || eventName == nullptr || getRecordAddr == 0)
+        return;
+    if (Find(cacheInstance) != nullptr) // idempotent (safe across /reload)
+        return;
+    if (g_cacheCount >= kMaxCaches)
+        return;
+    g_caches[g_cacheCount].cache = cacheInstance;
+    g_caches[g_cacheCount].eventName = eventName;
+    g_caches[g_cacheCount].getRecord = getRecordAddr;
+    g_caches[g_cacheCount].pendingCount = 0;
+    ++g_cacheCount;
+}
+
+bool IsCached(void *cacheInstance, uint32_t id) {
+    const Registered *r = Find(cacheInstance);
+    return r != nullptr && IsLoaded(r, id);
+}
+
+bool RequestLoad(void *cacheInstance, uint32_t id) {
+    Registered *r = Find(cacheInstance);
+    if (r == nullptr || id == 0)
+        return false;
+
+    // Already cached — fire success synchronously (modern RequestLoad
+    // contract: the completion event fires even on a cache hit).
+    if (IsLoaded(r, id)) {
+        Fire(r, id, true);
+        return true;
+    }
+    // Already in flight — one completion event per id.
+    if (FindPending(r, id) >= 0)
+        return true;
+    if (r->pendingCount >= kMaxPending)
+        return false;
+
+    // Send the query (non-null callback is the trigger), then track until
+    // the response hook / tick fires the event.
+    CacheFetch(r->getRecord, cacheInstance, id, reinterpret_cast<void *>(&NoOpCallback));
+    r->pending[r->pendingCount].id = id;
+    r->pending[r->pendingCount].ticksWaiting = 0;
+    ++r->pendingCount;
+    return true;
+}
+
+} // namespace Cache::QueryLoad

src/cache/QueryLoad.h

@@ -0,0 +1,65 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <cstdint>
+
+// Shared async-load machinery for the client query caches that aren't
+// item/quest — creature, gameobject, and (potentially) the other
+// SMSG_*_QUERY caches. Modeled on `Item::Data`'s pending/timeout/event
+// logic, generalized so several caches share one set of code.
+//
+// These caches are sibling classes: they share the record/entry hash-map
+// shape but differ in `_GetRecord` and response-parser per class (the
+// creature class reads its loaded flag at entry+0x50, the gameobject
+// class at +0x98, etc.). So a module registers BOTH its cache's
+// `_GetRecord` address and the dispatcher routes completion by cache
+// instance. The dispatcher hooks each class's response parser (MinHook
+// allows only one hook per target, but the parsers are distinct
+// functions, so hooking creature's and gameobject's separately is fine);
+// item/quest have their own parsers and aren't touched.
+//
+//   static const char *kEvent = "CREATURE_DATA_LOAD_RESULT";
+//   static const Event::Custom::AutoReserve _r{kEvent};   // reserve the event
+//   ...
+//   Cache::QueryLoad::Register(cacheInstance, kEvent,
+//                              Offsets::FUN_CREATURE_GET_RECORD);  // at init
+//   Cache::QueryLoad::RequestLoad(cacheInstance, id);             // fire a load
+//
+// The completion event fires as `(id: number, success: bool)` — success
+// when the cache fills, failure on timeout.
+
+namespace Cache::QueryLoad {
+
+// Register a query cache for async-load tracking. `cacheInstance` is the
+// cache global (e.g. `Offsets::VAR_CREATURE_CACHE` cast to void*);
+// `eventName` is a Custom event the caller has reserved via
+// `Event::Custom::AutoReserve`, fired `(id, success)` on completion;
+// `getRecordAddr` is the cache class's `_GetRecord` (e.g.
+// `Offsets::FUN_CREATURE_GET_RECORD`). `cacheInstance`/`eventName` must
+// outlive the process (pass static values). Idempotent — calling again
+// for the same cache is a no-op (safe across /reload).
+void Register(void *cacheInstance, const char *eventName, uintptr_t getRecordAddr);
+
+// True if `id` is already in the cache (pure peek, no network query).
+bool IsCached(void *cacheInstance, uint32_t id);
+
+// Issue an async load for `id`. If already cached, fires the completion
+// event with success synchronously. Otherwise sends the query and tracks
+// the id until the response lands (or it times out). Returns false only
+// if the cache isn't registered or its pending set is full; true
+// otherwise (already-cached, already-pending, or newly-tracked).
+bool RequestLoad(void *cacheInstance, uint32_t id);
+
+} // namespace Cache::QueryLoad

src/charlist/Order.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `GetSavedCharacterOrder(realm)` / `SetSavedCharacterOrder(realm, order)`

src/chat/CurrentGUID.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `GetCurrentChatGUID()` — call from inside an addon's OnEvent for

src/chat/CurrentGUID.h

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #pragma once

src/chatbubble/Info.cpp

@@ -0,0 +1,82 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_ChatBubbles.GetAllChatBubbles([includeForbidden])` — returns an
+// array of the currently-active chat-bubble Frame objects, matching
+// modern WoW's 7.2.5 signature. Addons use it to recolor / translate /
+// reposition speech bubbles by reading the bubble's FontString region.
+//
+// Vanilla 1.12 chat bubbles are `CGChatBubbleFrame`s — full
+// `CSimpleFrame`s created purely in C++ (never via `CreateFrame`), so
+// they have no name and no Lua wrapper until something pushes them. This
+// is exactly the default-nameplate case: we push each via the shared
+// `UI::FrameObject::Push`, which delegates to the engine's own
+// `FrameScript_Object::ScriptRegister` to lazily build the canonical
+// wrapper. The returned frames respond to real frame methods — the
+// FontString holding the spoken text (bubble + 0x31c, created with the
+// bubble as its parent) shows up in `bubble:GetRegions()`, so the modern
+// "iterate GetRegions, find the FontString, read GetText()" idiom works
+// unchanged. This is the pre-7.2.5 "walk WorldFrame children" pattern the
+// wiki describes, but handed the exact set instead of the whole world.
+//
+// The engine keeps active bubbles on an intrusive Storm `TSList` whose
+// head is `VAR_CHAT_BUBBLE_LIST_HEAD` (`0x00B6F038`); each node's forward
+// link sits at `+0x318` and the list terminator carries the low-bit
+// sentinel. We mirror the engine's own walk in the per-frame update
+// `FUN_004b1060` / teardown `FUN_004b0f80` verbatim. Bubbles whose owner
+// unit has despawned are pruned on the engine's next update tick, so a
+// just-orphaned bubble can linger one frame — harmless, and addons that
+// care filter on `bubble:IsShown()` (a real method here) anyway.
+//
+// `includeForbidden` is accepted and ignored: vanilla has no forbidden
+// frames, so every bubble is returned regardless.
+
+#include "Game.h"
+#include "ui/FrameObject.h"
+
+#include <cstdint>
+
+namespace ChatBubble::Info {
+
+namespace {
+
+// Storm TSList of live CGChatBubbleFrames. Head pointer, per-node
+// forward link, and the end-of-list low-bit sentinel — see the engine
+// walks at 0x004b1060 / 0x004b0f80.
+constexpr uintptr_t kListHead = 0x00B6F038;
+constexpr int kOffNextLink = 0x318;
+
+} // namespace
+
+static int __fastcall Script_GetAllChatBubbles(void *L) {
+    Game::Lua::NewTable(L);
+
+    uintptr_t node = *reinterpret_cast<const uintptr_t *>(kListHead);
+    int nextIndex = 1;
+    while (node != 0 && (node & 1) == 0) {
+        Game::Lua::PushNumber(L, static_cast<double>(nextIndex++));
+        UI::FrameObject::Push(L, reinterpret_cast<void *>(node));
+        Game::Lua::SetTable(L, -3);
+        node = *reinterpret_cast<const uintptr_t *>(node + kOffNextLink);
+    }
+    return 1;
+}
+
+static void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_ChatBubbles", "GetAllChatBubbles",
+                                     &Script_GetAllChatBubbles);
+}
+
+static const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace ChatBubble::Info

src/classes/Info.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // Class metadata accessors backed by `ChrClasses.dbc`.

src/container/Charges.cpp

@@ -0,0 +1,55 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_Container.GetContainerItemCharges(containerIndex, slotIndex)` —
+// returns the `abs(SPELL_CHARGES[0])` value of the item in the
+// specified bag slot, or `nil` for empty slots and items that don't
+// carry a charge concept. Wands return their remaining cast count
+// (e.g. 50 → 49 → …); single-use items (Healthstone, Mana Gem,
+// Goblin Sapper Charge) return `1`.
+//
+// Modern equivalent: none — modern WoW exposes charges only through
+// tooltip text scanning. `C_Item.GetItemCount(includeBank, includeCharges)`
+// totals charges across every matching stack; this is the per-slot
+// reader.
+
+#include "Game.h"
+#include "item/Charges.h"
+#include "item/Location.h"
+
+namespace Container::Charges {
+
+namespace {
+
+int __fastcall Script_C_Container_GetContainerItemCharges(void *L) {
+    if (!Game::Lua::IsNumber(L, 1) || !Game::Lua::IsNumber(L, 2)) {
+        Game::Lua::Error(L,
+            "Usage: C_Container.GetContainerItemCharges(containerIndex, slotIndex)");
+        return 0;
+    }
+    const int bagID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const int slotIndex = static_cast<int>(Game::Lua::ToNumber(L, 2));
+    return Item::Charges::PushChargesForItem(
+        L, Item::Location::ResolveBag(L, bagID, slotIndex));
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_Container", "GetContainerItemCharges",
+                                     &Script_C_Container_GetContainerItemCharges);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+} // namespace Container::Charges

src/container/Cooldown.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_Container.GetItemCooldown(itemID)` — modern signature only

src/container/Durability.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_Container.GetContainerItemDurability(containerIndex, slotIndex)` —

src/container/FreeSlots.cpp

@@ -1,18 +1,19 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Game.h"
 #include "Offsets.h"
+#include "item/BagFamily.h"
 #include "item/ID.h"
 #include "item/Location.h"
 
@@ -73,15 +74,14 @@ BagInfo ResolveBagInfo(int bagID) {
 
     const int slots = static_cast<int>(*reinterpret_cast<const uint32_t *>(
         record + Offsets::OFF_ITEMSTATS_CONTAINER_SLOTS));
-    // Convert 1.12's raw BagFamily ID to the modern bitmask. See
-    // `Offsets::OFF_ITEMSTATS_BAG_FAMILY` for the encoding-shift story
-    // and `Item::Info::BagFamilyIdToBitmask` for the canonical helper —
-    // we inline the one-liner here to avoid a header dance for a
-    // single-instruction conversion.
-    const uint32_t rawFamily = *reinterpret_cast<const uint32_t *>(
-        record + Offsets::OFF_ITEMSTATS_BAG_FAMILY);
+    // BagFamily bitmask: the item's field if populated, else derived from
+    // the container subclass — Turtle leaves bags' m_bagFamily at 0, so a
+    // Soul Bag would otherwise report family 0 and get miscounted as a
+    // general-purpose bag by CalculateTotalNumberOfFreeBagSlots. Shared
+    // with C_Item.GetItemFamily so a bag and its contents agree. See
+    // `Item::BagFamily`.
     const int family =
-        (rawFamily == 0) ? 0 : static_cast<int>(1u << (rawFamily - 1));
+        static_cast<int>(Item::BagFamily::BitmaskForRecord(record));
     return {slots, family};
 }
 
@@ -106,14 +106,13 @@ int CountFreeSlotsInBag(void *L, int bagID, int slotCount) {
 // `(0, 0)` — matching 3.3.5's behavior of always pushing two values
 // rather than nil/nothing.
 //
-// `bagType` is the `BagFamily` bitmask in modern encoding (raw 1.12
-// ID converted via `1 << (ID-1)`). Empirically on Turtle WoW, only
-// Light Quiver actually carries a non-zero family for bags themselves
-// — Soul Pouch, Enchanting Bag, etc. all return 0 because the
-// vanilla-era server data doesn't populate the field. **Individual
-// items** (arrows, bullets, shards, herbs) reliably return their
-// family, so addons that auto-route loot work correctly via
-// `C_Item.GetItemFamily(itemID)` even though `bagType` is sparse.
+// `bagType` is the `BagFamily` bitmask in modern encoding. Bags leave the
+// raw family field empty in Turtle's data (Soul/Herb/quiver/ammo pouch/…
+// all read 0), so it's derived from the bag's class + subclass via
+// `Item::BagFamily`: a Soul Bag reports `0x4`, a quiver `0x1`, an ammo
+// pouch `0x2` — matching what `C_Item.GetItemFamily` reports for both the
+// bag and the items it holds. See that helper for the Turtle custom-family
+// caveat (Meat/Fish/Leather/Mining, IDs 10–13).
 int __fastcall Script_C_Container_GetContainerNumFreeSlots(void *L) {
     if (!Game::Lua::IsNumber(L, 1)) {
         Game::Lua::Error(L,
@@ -130,11 +129,39 @@ int __fastcall Script_C_Container_GetContainerNumFreeSlots(void *L) {
     return 2;
 }
 
+// `C_Container.CalculateTotalNumberOfFreeBagSlots()` — the total number of
+// free slots across the player's *general-purpose* bags (backpack + equipped
+// bags 0..4 whose BagFamily is 0). Specialty bags (quivers, soul bags, herb
+// bags, …) are excluded, mirroring FrameXML's implementation exactly:
+//
+//   for bag = BACKPACK .. lastBag:
+//       free, family = C_Container.GetContainerNumFreeSlots(bag)
+//       if family == 0 then total = total + free end
+//
+// Takes no arguments. Specialty bags are correctly excluded: their family
+// comes from `Item::BagFamily` (container-subclass fallback), so a Soul
+// Bag / Herb Bag / Meat Bag reports a non-zero family and its slots are
+// left out of the general-purpose total — matching retail's FrameXML
+// behavior. (An earlier version miscounted them because Turtle leaves the
+// raw family field at 0 for bags.)
+int __fastcall Script_C_Container_CalculateTotalNumberOfFreeBagSlots(void *L) {
+    int total = 0;
+    for (int bagID = 0; bagID <= 4; bagID++) {
+        const BagInfo info = ResolveBagInfo(bagID);
+        if (info.slotCount > 0 && info.bagType == 0)
+            total += CountFreeSlotsInBag(L, bagID, info.slotCount);
+    }
+    Game::Lua::PushNumber(L, static_cast<double>(total));
+    return 1;
+}
+
 } // namespace
 
 static void RegisterLuaFunctions() {
     Game::Lua::RegisterTableFunction("C_Container", "GetContainerNumFreeSlots",
                                      &Script_C_Container_GetContainerNumFreeSlots);
+    Game::Lua::RegisterTableFunction("C_Container", "CalculateTotalNumberOfFreeBagSlots",
+                                     &Script_C_Container_CalculateTotalNumberOfFreeBagSlots);
 }
 
 static const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};

src/container/HasItem.cpp

@@ -0,0 +1,52 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_Container.HasContainerItem(bagIndex, slotIndex)` — returns whether the
+// given bag slot currently holds an item (a Classic Era addition). It's the
+// occupancy sibling of `GetContainerItemID`: resolves the slot to its CGItem
+// the same way (`Item::Location::ResolveBag` → engine `PackBagSlot` →
+// `GetItemBySlot`), and a populated slot yields a non-null pointer while an
+// empty slot yields null. Presence only — it does not depend on the item's
+// static data being cached. Returns `false` for empty slots and invalid
+// bag/slot indices.
+
+#include "Game.h"
+#include "item/Location.h"
+
+namespace Container::HasItem {
+
+namespace {
+
+int __fastcall Script_C_Container_HasContainerItem(void *L) {
+    if (!Game::Lua::IsNumber(L, 1) || !Game::Lua::IsNumber(L, 2)) {
+        Game::Lua::Error(L, "Usage: C_Container.HasContainerItem(bagIndex, slotIndex)");
+        return 0;
+    }
+    const int bagID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const int slotIndex = static_cast<int>(Game::Lua::ToNumber(L, 2));
+
+    const bool hasItem = Item::Location::ResolveBag(L, bagID, slotIndex) != nullptr;
+    Game::Lua::PushBool(L, hasItem);
+    return 1;
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_Container", "HasContainerItem",
+                                     &Script_C_Container_HasContainerItem);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+} // namespace Container::HasItem

src/container/Hearthstone.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Game.h"

src/container/ID.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_Container.GetContainerItemID(bagIndex, slotIndex)` — modern

src/container/ItemInfo.cpp

@@ -0,0 +1,194 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_Container.GetContainerItemInfo(containerIndex, slotIndex)` — the modern
+// structured-table accessor (namespaced + table-returning since Patch
+// 10.0.2). Vanilla's global `GetContainerItemInfo` returns a flat 5-tuple
+// (`texture, itemCount, locked, quality, readable` — verified by decoding
+// `Script_GetContainerItemInfo` at `0x004F9670`); backported addons expect
+// the `ContainerItemInfo` table with the wider modern field set. We assemble
+// that table from the same sources the engine reads plus the extra fields it
+// never surfaced in 1.12.
+//
+// Field sources:
+//   iconFileID  — ItemStats displayInfoID → ItemDisplayInfo.dbc icon path.
+//                 (1.12 has no fileID system; we return the icon *path*
+//                 string, same convention as `GetItemIcon`.)
+//   stackCount  — CGItem descriptor `+OFF_DESCRIPTOR_STACK_COUNT` (the
+//                 engine's `itemCount` return).
+//   isLocked    — CGItem `+OFF_ITEM_CLIENT_LOCK & 1` (the `locked` return).
+//   quality     — ItemStats `+OFF_ITEMSTATS_QUALITY`; nil when uncached
+//                 (modern contract: `Enum.ItemQuality or nil`).
+//   isReadable  — static page text OR the per-instance readable-text id,
+//                 mirroring the engine's `readable` branch at `0x004F97BD`.
+//   hasLoot     — ItemStats LOOTABLE flag (best-effort static approximation:
+//                 vanilla can't track post-loot dynamic emptiness client-side).
+//   hyperlink   — engine link builder via `Item::Link::FromCGItem` (enchant /
+//                 random-suffix decorated, same as `GetContainerItemLink`).
+//   isFiltered  — always false (vanilla has no bag search-filter system).
+//   hasNoValue  — ItemStats sellPrice == 0.
+//   itemID      — instance block itemID (`Item::ID::FromCGItem`).
+//   isBound     — CGItem descriptor SOULBOUND flag (`C_Item.IsBound`'s bit).
+//   itemName    — instance-decorated display name, base ItemStats name on miss.
+//
+// Returns nil for an empty slot or an invalid bag/slot index (modern
+// contract). Cache-derived fields (icon / quality / hasLoot / hasNoValue /
+// name) are omitted/nil when the item's static data isn't cached yet — the
+// live per-instance fields (count / locked / bound / itemID / link) are always
+// present. Passive: does not warm the item cache.
+
+#include "Game.h"
+#include "Offsets.h"
+#include "dbc/Lookup.h"
+#include "item/ID.h"
+#include "item/Link.h"
+#include "item/Location.h"
+#include "item/StatAccum.h"
+
+#include <cstdint>
+#include <cstdio>
+
+namespace Container::ItemInfo {
+
+namespace {
+
+bool BuildIconPath(uint32_t displayInfoID, char *out, size_t outSize) {
+    out[0] = '\0';
+    const char *iconName = DBC::StringField(
+        Offsets::VAR_ITEMDISPLAYINFO_RECORDS, Offsets::VAR_ITEMDISPLAYINFO_COUNT,
+        displayInfoID, Offsets::OFF_ITEMDISPLAYINFO_ICON);
+    if (iconName == nullptr || iconName[0] == '\0')
+        return false;
+    std::snprintf(out, outSize, "Interface\\Icons\\%s", iconName);
+    return true;
+}
+
+// Mirrors the engine's `readable` decision (0x004F97BD..0x004F97CF): a slot
+// is readable when its static page text is set OR the per-instance
+// readable-text id is non-zero (letters / server-authored notes).
+bool ItemReadable(const uint8_t *item, const uint8_t *record) {
+    if (record != nullptr &&
+        *reinterpret_cast<const uint32_t *>(record + Offsets::OFF_ITEMSTATS_PAGE_TEXT) != 0)
+        return true;
+    const uint8_t *descriptor = *reinterpret_cast<const uint8_t *const *>(
+        item + Offsets::OFF_ITEM_DESCRIPTOR);
+    return descriptor != nullptr &&
+           *reinterpret_cast<const uint32_t *>(
+               descriptor + Offsets::OFF_DESCRIPTOR_READABLE_TEXT_ID) != 0;
+}
+
+int __fastcall Script_C_Container_GetContainerItemInfo(void *L) {
+    if (!Game::Lua::IsNumber(L, 1) || !Game::Lua::IsNumber(L, 2)) {
+        Game::Lua::Error(L,
+            "Usage: C_Container.GetContainerItemInfo(containerIndex, slotIndex)");
+        return 0;
+    }
+    const int bagID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const int slotIndex = static_cast<int>(Game::Lua::ToNumber(L, 2));
+
+    const uint8_t *item = Item::Location::ResolveBag(L, bagID, slotIndex);
+    if (item == nullptr) {
+        Game::Lua::PushNil(L); // empty slot / bad index → nil (modern contract)
+        return 1;
+    }
+
+    // --- Gather everything into locals BEFORE touching the Lua stack. The
+    // engine link/name builders and cache/DBC reads below are pure C; keeping
+    // them off the half-built table avoids any stack interleaving. ---
+    const int itemID = Item::ID::FromCGItem(item);
+    const uint8_t *record = (itemID > 0)
+        ? Item::StatAccum::FetchRecord(static_cast<uint32_t>(itemID))
+        : nullptr;
+
+    // Live per-instance descriptor fields.
+    const uint8_t *descriptor = *reinterpret_cast<const uint8_t *const *>(
+        item + Offsets::OFF_ITEM_DESCRIPTOR);
+    int stackCount = 0;
+    bool isBound = false;
+    if (descriptor != nullptr) {
+        stackCount = *reinterpret_cast<const int *>(
+            descriptor + Offsets::OFF_DESCRIPTOR_STACK_COUNT);
+        isBound = (*reinterpret_cast<const uint32_t *>(
+                       descriptor + Offsets::OFF_DESCRIPTOR_FLAGS) &
+                   Offsets::ITEM_FLAG_SOULBOUND) != 0;
+    }
+    const bool isLocked = (*reinterpret_cast<const uint32_t *>(
+                               item + Offsets::OFF_ITEM_CLIENT_LOCK) &
+                           Offsets::ITEM_CLIENT_LOCK_BIT) != 0;
+    const bool isReadable = ItemReadable(item, record);
+
+    // Static template fields (cache-dependent).
+    bool haveIcon = false;
+    char iconPath[260];
+    bool haveQuality = false;
+    uint32_t quality = 0;
+    bool hasLoot = false;
+    bool hasNoValue = false;
+    if (record != nullptr) {
+        const uint32_t displayInfoID = *reinterpret_cast<const uint32_t *>(
+            record + Offsets::OFF_ITEMSTATS_DISPLAY_INFO_ID);
+        haveIcon = BuildIconPath(displayInfoID, iconPath, sizeof(iconPath));
+        quality = *reinterpret_cast<const uint32_t *>(
+            record + Offsets::OFF_ITEMSTATS_QUALITY);
+        haveQuality = true;
+        const uint32_t flags = *reinterpret_cast<const uint32_t *>(
+            record + Offsets::OFF_ITEMSTATS_FLAGS);
+        hasLoot = (flags & Offsets::ITEM_FLAG_LOOTABLE) != 0;
+        hasNoValue = *reinterpret_cast<const uint32_t *>(
+                         record + Offsets::OFF_ITEMSTATS_SELL_PRICE) == 0;
+    }
+
+    const char *hyperlink = Item::Link::FromCGItem(item);
+
+    char nameBuf[256];
+    const char *itemName = nullptr;
+    if (Item::Link::NameFromCGItem(item, nameBuf, sizeof(nameBuf))) {
+        itemName = nameBuf;
+    } else if (record != nullptr) {
+        const char *baseName = *reinterpret_cast<const char *const *>(
+            record + Offsets::OFF_ITEMSTATS_NAME);
+        if (baseName != nullptr && baseName[0] != '\0')
+            itemName = baseName;
+    }
+
+    // --- Build the ContainerItemInfo table (only stack-safe SetField* now). ---
+    Game::Lua::NewTable(L);
+    if (haveIcon)
+        Game::Lua::SetFieldString(L, "iconFileID", iconPath);
+    Game::Lua::SetFieldNumber(L, "stackCount", static_cast<double>(stackCount));
+    Game::Lua::SetFieldBool(L, "isLocked", isLocked);
+    if (haveQuality)
+        Game::Lua::SetFieldNumber(L, "quality", static_cast<double>(quality));
+    Game::Lua::SetFieldBool(L, "isReadable", isReadable);
+    Game::Lua::SetFieldBool(L, "hasLoot", hasLoot);
+    if (hyperlink != nullptr && hyperlink[0] != '\0')
+        Game::Lua::SetFieldString(L, "hyperlink", hyperlink);
+    Game::Lua::SetFieldBool(L, "isFiltered", false);
+    Game::Lua::SetFieldBool(L, "hasNoValue", hasNoValue);
+    Game::Lua::SetFieldNumber(L, "itemID", static_cast<double>(itemID));
+    Game::Lua::SetFieldBool(L, "isBound", isBound);
+    if (itemName != nullptr)
+        Game::Lua::SetFieldString(L, "itemName", itemName);
+    return 1;
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_Container", "GetContainerItemInfo",
+                                     &Script_C_Container_GetContainerItemInfo);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+} // namespace Container::ItemInfo

src/container/MoveItem.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_Container.MoveItem(srcBag, srcSlot, dstBag, dstSlot, count)` —

src/container/Openable.cpp

@@ -0,0 +1,49 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_Container.IsContainerItemOpenable(bag, slot)` — positional-arg
+// wrapper around `Item::Openable::PushIsItemOpenable`. Same chain
+// `C_Container.GetContainerItemDurability` and friends use:
+// `ResolveBag` → `GetItemBySlot`. Returns the
+// `(isOpenable, canOpen)` tuple — see [[item/Openable.h]].
+
+#include "Game.h"
+#include "item/Location.h"
+#include "item/Openable.h"
+
+namespace Container::Openable {
+
+namespace {
+
+int __fastcall Script_C_Container_IsContainerItemOpenable(void *L) {
+    if (!Game::Lua::IsNumber(L, 1) || !Game::Lua::IsNumber(L, 2)) {
+        Game::Lua::Error(L,
+            "Usage: C_Container.IsContainerItemOpenable(containerIndex, slotIndex)");
+        return 0;
+    }
+    const int bagID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const int slotIndex = static_cast<int>(Game::Lua::ToNumber(L, 2));
+    return Item::Openable::PushIsItemOpenable(
+        L, Item::Location::ResolveBag(L, bagID, slotIndex));
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_Container", "IsContainerItemOpenable",
+                                     &Script_C_Container_IsContainerItemOpenable);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+} // namespace Container::Openable

src/container/RepairCost.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_Container.GetContainerItemRepairCost(containerIndex, slotIndex)`

src/container/SwapItems.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // `C_Container.SwapItems(srcBag, srcSlot, dstBag, dstSlot)` — atomic

src/coroutine/Library.cpp

@@ -0,0 +1,224 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+//
+// Restores Lua 5.0's stripped `coroutine.*` library to the in-game Lua
+// state. WoW 1.12.1 ships with the C-level coroutine machinery linked
+// in (`lua_resume`, `lua_yield`, `lua_newthread`, threads as a real
+// type tag 8) but the `coroutine` global table was never registered.
+// The five trampolines below mirror Lua 5.0's `lbaselib.c` shapes,
+// cross-checked against 5.4.8's wired-up library via Ghidra (see the
+// "Cross-binary reference" technique in CLAUDE.md).
+
+#include "Game.h"
+
+#include <cstdint>
+
+namespace Coroutine {
+
+// Lua 5.0 result codes returned by `lua_resume`.
+static constexpr int LUA_OK = 0;
+static constexpr int LUA_YIELD = 1;
+
+// Field offsets in `lua_State`, confirmed from `lua_resume`'s error
+// cleanup path (`L->ci = L->base_ci; L->base = base_ci->base`):
+//   *(L+0x14) = *(L+0x28)
+//   *(L+0x0C) = **(L+0x28)
+static constexpr uintptr_t OFF_L_CI = 0x14;
+static constexpr uintptr_t OFF_L_BASE_CI = 0x28;
+
+// Reads `L->ci` (the current CallInfo). When greater than `L->base_ci`
+// the coroutine's body function is mid-execution (paused at a yield);
+// when equal, no Lua function is on this thread's call stack.
+static void *LuaCI(void *L) {
+    return *reinterpret_cast<void **>(reinterpret_cast<uintptr_t>(L) + OFF_L_CI);
+}
+static void *LuaBaseCI(void *L) {
+    return *reinterpret_cast<void **>(reinterpret_cast<uintptr_t>(L) + OFF_L_BASE_CI);
+}
+
+// Coroutine status codes returned by `CoStatus` below — fed into the
+// `kStatusNames` table for the `status` API. The dense 0..3 encoding
+// also lets us label "unsuspended" states for resume's error path.
+static constexpr int CO_RUNNING = 0;
+static constexpr int CO_SUSPENDED = 1;
+static constexpr int CO_NORMAL = 2;
+static constexpr int CO_DEAD = 3;
+
+static const char *const kStatusNames[] = {
+    "running",
+    "suspended",
+    "normal",
+    "dead",
+};
+
+// Inner status classifier. Equivalent to Lua 5.0's `auxstatus` from
+// lbaselib.c, but we can't rely on `L->status` here: this build's
+// `lua_yield` doesn't write status (it sets a CI state flag bit
+// `0x10` instead), so the canonical "ttype(status) == LUA_YIELD"
+// check fails. We use the `ci > base_ci` signal instead — true iff
+// a Lua function is currently paused on this thread's call stack.
+//
+// State map:
+//   co->ci  >  co->base_ci         → SUSPENDED (yielded; body paused)
+//   co->ci ==  co->base_ci, top==0 → DEAD (returned, all consumed)
+//   co->ci ==  co->base_ci, top>0  → SUSPENDED (initial: fn pushed,
+//                                    never resumed)
+// After AuxResume's XMove cycle, both "returned" and "yielded" leave
+// co's stack empty; the ci comparison is what distinguishes them.
+// "Normal" (coroutine that resumed a deeper coroutine — appears as
+// the parent in the call chain) is rare and would require walking
+// the global thread list; we collapse it into "suspended".
+static int CoStatus(void *L, void *co) {
+    if (co == L)
+        return CO_RUNNING;
+    if (LuaCI(co) > LuaBaseCI(co))
+        return CO_SUSPENDED;
+    return Game::Lua::GetTop(co) == 0 ? CO_DEAD : CO_SUSPENDED;
+}
+
+// Common back-end for resume / wrap. Returns nres ≥ 0 on success
+// (with values already xmove'd onto L), or -1 on error (with the
+// error message left on L's stack).
+//
+// WoW's modified Lua doesn't follow the standard `lua_resume` status
+// contract: it returns `0` for normal completion and `1` for both
+// "yielded" AND "errored mid-execution". We disambiguate the two
+// `s==1` cases by checking the call-stack depth — a yielded
+// coroutine still has its body paused (`ci > base_ci`), while an
+// errored coroutine has been unwound back to `base_ci`. Errors hit
+// from the "dead/already-resumed" early-out (e.g. the inner
+// `cannot resume dead coroutine` path) also land in `s != 0` with
+// `ci == base_ci`, so the same branch covers them.
+static int AuxResume(void *L, void *co, int nargs) {
+    const int st = CoStatus(L, co);
+    if (st != CO_SUSPENDED) {
+        Game::Lua::PushString(L, st == CO_DEAD
+                                     ? "cannot resume dead coroutine"
+                                     : "cannot resume non-suspended coroutine");
+        return -1;
+    }
+    if (Game::Lua::CheckStack(co, nargs) == 0) {
+        Game::Lua::PushString(L, "too many arguments to resume coroutine");
+        return -1;
+    }
+    Game::Lua::XMove(L, co, nargs);
+    const int s = Game::Lua::Resume(co, nargs);
+    const bool yielded = LuaCI(co) > LuaBaseCI(co);
+    if (s == LUA_OK || yielded) {
+        const int nres = Game::Lua::GetTop(co);
+        if (Game::Lua::CheckStack(L, nres) == 0) {
+            Game::Lua::PushString(L, "too many results to resume coroutine");
+            return -1;
+        }
+        Game::Lua::XMove(co, L, nres);
+        return nres;
+    }
+    // Error path: engine left a single error message on co's stack.
+    Game::Lua::XMove(co, L, 1);
+    return -1;
+}
+
+static int __fastcall Script_Coroutine_Create(void *L) {
+    if (Game::Lua::Type(L, 1) != Game::Lua::TYPE_FUNCTION || Game::Lua::IsCFunction(L, 1)) {
+        Game::Lua::ArgError(L, 1, "Lua function expected");
+        return 0; // unreachable
+    }
+    Game::Lua::NewThread(L);                                     // [arg1, NL]
+    void *NL = Game::Lua::ToThread(L, -1);
+    if (NL == nullptr) {
+        Game::Lua::Error(L, "coroutine.create: failed to allocate thread");
+        return 0; // unreachable
+    }
+    Game::Lua::PushValue(L, 1);                                  // [arg1, NL, fn]
+    Game::Lua::XMove(L, NL, 1);                                  // [arg1, NL]; NL has fn
+    return 1;
+}
+
+static int __fastcall Script_Coroutine_Yield(void *L) {
+    return Game::Lua::Yield(L, Game::Lua::GetTop(L));
+}
+
+static int __fastcall Script_Coroutine_Resume(void *L) {
+    if (Game::Lua::Type(L, 1) != Game::Lua::TYPE_THREAD) {
+        Game::Lua::ArgError(L, 1, "coroutine expected");
+        return 0; // unreachable
+    }
+    void *co = Game::Lua::ToThread(L, 1);
+    const int nargs = Game::Lua::GetTop(L) - 1;
+    const int r = AuxResume(L, co, nargs);
+    if (r < 0) {
+        // Error message is on top of L's stack. Push `false` and
+        // shuffle it below the message: [..., msg] -> [..., false, msg].
+        Game::Lua::PushBool(L, false);
+        Game::Lua::Insert(L, -2);
+        return 2;
+    }
+    // Success: `r` values on top of L's stack. Push `true` and slide
+    // it into position so returns are [..., true, v1, v2, ..., vr].
+    Game::Lua::PushBool(L, true);
+    Game::Lua::Insert(L, -(r + 1));
+    return r + 1;
+}
+
+static int __fastcall Script_Coroutine_Status(void *L) {
+    if (Game::Lua::Type(L, 1) != Game::Lua::TYPE_THREAD) {
+        Game::Lua::ArgError(L, 1, "coroutine expected");
+        return 0; // unreachable
+    }
+    void *co = Game::Lua::ToThread(L, 1);
+    Game::Lua::PushString(L, kStatusNames[CoStatus(L, co)]);
+    return 1;
+}
+
+// `coroutine.wrap`'s returned closure. The captured coroutine lives
+// in upvalue 1; each invocation forwards args via resume and either
+// returns the yielded/returned values directly (no { ok, ... }
+// wrapping like resume does) or re-raises on error.
+static int __fastcall WrapAux(void *L) {
+    void *co = Game::Lua::ToThread(L, Game::Lua::UpvalueIndex(1));
+    if (co == nullptr) {
+        Game::Lua::Error(L, "coroutine.wrap: missing thread upvalue");
+        return 0; // unreachable
+    }
+    const int nargs = Game::Lua::GetTop(L);
+    const int r = AuxResume(L, co, nargs);
+    if (r < 0) {
+        // The error message is at -1. `lua_error`'s 1.12 wrapper takes
+        // a printf-format string + va args; we pass `%s` so any `%`
+        // characters in the message are treated as literal.
+        const char *msg = Game::Lua::ToString(L, -1);
+        Game::Lua::Error(L, "%s", msg != nullptr ? msg : "coroutine error");
+        return 0; // unreachable
+    }
+    return r;
+}
+
+static int __fastcall Script_Coroutine_Wrap(void *L) {
+    // Reuse cocreate to build the thread (validates arg, allocates,
+    // moves fn into the new state). Leaves the thread on top of L.
+    Script_Coroutine_Create(L);
+    Game::Lua::PushCClosure(L, &WrapAux, 1); // captures thread as upvalue 1
+    return 1;
+}
+
+static void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("coroutine", "create", &Script_Coroutine_Create);
+    Game::Lua::RegisterTableFunction("coroutine", "resume", &Script_Coroutine_Resume);
+    Game::Lua::RegisterTableFunction("coroutine", "yield", &Script_Coroutine_Yield);
+    Game::Lua::RegisterTableFunction("coroutine", "status", &Script_Coroutine_Status);
+    Game::Lua::RegisterTableFunction("coroutine", "wrap", &Script_Coroutine_Wrap);
+}
+
+static const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace Coroutine

src/creature/Info.cpp

@@ -0,0 +1,383 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `C_CreatureInfo.GetCreatureInfoByID(creatureID)` -> table | nil
+//
+// Reads the client-side creature cache (creaturecache.wdb, fed by
+// SMSG_CREATURE_QUERY_RESPONSE) for a creature/NPC by ID and returns:
+//
+//   {
+//     creatureID = <id>,
+//     name       = "Misthoof Stag",   -- primary name
+//     subName    = "",                 -- title/subtitle ("" if none)
+//     type       = 1,                  -- CreatureType (1=Beast, 7=Humanoid, …)
+//     family     = 0,                  -- CreatureFamily
+//     rank       = 0,                  -- 0=normal,1=elite,2=rareelite,3=worldboss,4=rare
+//     displayID  = 10957,              -- model display ID
+//   }
+//
+// `GetCreatureInfoByID` is a synchronous *peek*: returns the data only
+// if the creature is already cached (seen this session, or loaded from
+// creaturecache.wdb at login); nil otherwise. `RequestLoadCreatureByID`
+// fetches an uncached creature — it issues the query and fires
+// `CREATURE_DATA_LOAD_RESULT(creatureID, success)` when the response
+// lands, via the shared `Cache::QueryLoad` dispatcher.
+//
+// Field offsets verified against the binary (rank read by the engine's
+// classification helper as `[block+0x20]`) and real creaturecache.wdb
+// rows. See Offsets.h `OFF_CREATURE_*`.
+//
+// This file also hosts the two static-DBC lookups on the same table:
+//
+//   C_CreatureInfo.GetRaceInfo(raceID)   -> { raceName, clientFileString, raceID }
+//   C_CreatureInfo.GetClassInfo(classID) -> { className, classFile, classID }
+//
+// retail backports over `ChrRaces.dbc` / `ChrClasses.dbc`. Unlike the
+// creature cache these DBCs are always loaded, localized, and synchronous —
+// so a by-id lookup works for any race/class id at any time, with no WDB
+// cold-cache problem. The file-string columns (`clientFileString` /
+// `classFile`) are the same non-localized tokens `UnitRace`/`UnitClass`
+// return as their 2nd value ("NightElf", "WARRIOR"), so they round-trip
+// with the unit APIs. See Offsets.h `OFF_CHRRACES_*` / `OFF_CHRCLASSES_*`.
+
+#include "Game.h"
+#include "Offsets.h"
+#include "cache/QueryLoad.h"
+#include "dbc/Lookup.h"
+#include "event/Custom.h"
+
+#include <cstdint>
+
+namespace Creature::Info {
+
+namespace {
+
+// Completion event for RequestLoadCreatureByID. Reserved at static-init
+// so the engine allocates it in its event table; fired (creatureID,
+// success) by the Cache::QueryLoad dispatcher.
+constexpr const char *kCreatureDataLoadResult = "CREATURE_DATA_LOAD_RESULT";
+const Event::Custom::AutoReserve _reserveLoadResult{kCreatureDataLoadResult};
+
+// Generic cache `_GetRecord`. With callback=nullptr it only peeks the
+// hash table (no network query) and returns the data block (entry+0x18)
+// if the creature is loaded, else nullptr.
+using GetCacheRecord_t = const uint8_t *(__thiscall *)(void *cache, uint32_t id,
+                                                       const uint64_t *guid, void *callback,
+                                                       void *userData, char dedup);
+
+const uint8_t *PeekCreature(uint32_t creatureID) {
+    auto fn = reinterpret_cast<GetCacheRecord_t>(Offsets::FUN_CREATURE_GET_RECORD);
+    auto *cache = reinterpret_cast<void *>(Offsets::VAR_CREATURE_CACHE);
+    const uint64_t zeroGuid = 0;
+    return fn(cache, creatureID, &zeroGuid, nullptr, nullptr, 0);
+}
+
+int __fastcall Script_GetCreatureInfoByID(void *L) {
+    if (!Game::Lua::IsNumber(L, 1))
+        return 0; // nil
+    const int creatureID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    if (creatureID <= 0)
+        return 0;
+
+    const uint8_t *rec = PeekCreature(static_cast<uint32_t>(creatureID));
+    if (rec == nullptr)
+        return 0; // not cached -> nil
+
+    const char *name = *reinterpret_cast<const char *const *>(rec + Offsets::OFF_CREATURE_NAME);
+    const char *subName =
+        *reinterpret_cast<const char *const *>(rec + Offsets::OFF_CREATURE_SUBNAME);
+    const uint32_t type = *reinterpret_cast<const uint32_t *>(rec + Offsets::OFF_CREATURE_TYPE);
+    const uint32_t family = *reinterpret_cast<const uint32_t *>(rec + Offsets::OFF_CREATURE_FAMILY);
+    const uint32_t rank = *reinterpret_cast<const uint32_t *>(rec + Offsets::OFF_CREATURE_RANK);
+    const uint32_t displayID =
+        *reinterpret_cast<const uint32_t *>(rec + Offsets::OFF_CREATURE_DISPLAYID);
+
+    Game::Lua::NewTable(L);
+    Game::Lua::SetFieldNumber(L, "creatureID", creatureID);
+    Game::Lua::SetFieldString(L, "name", name);       // NULL coerced to ""
+    Game::Lua::SetFieldString(L, "subName", subName);
+    Game::Lua::SetFieldNumber(L, "type", type);
+    Game::Lua::SetFieldNumber(L, "family", family);
+    Game::Lua::SetFieldNumber(L, "rank", rank);
+    Game::Lua::SetFieldNumber(L, "displayID", displayID);
+    return 1;
+}
+
+// `C_CreatureInfo.RequestLoadCreatureByID(creatureID)` -> bool. Async
+// fetch for an uncached creature: issues SMSG_CREATURE_QUERY and fires
+// `CREATURE_DATA_LOAD_RESULT(creatureID, success)` when the response
+// lands (or on timeout). Fires success synchronously if already cached.
+// Returns true if the request was accepted (false for bad input or a
+// full pending set) — mirrors C_Item.RequestLoadItemData(ByID).
+int __fastcall Script_RequestLoadCreatureByID(void *L) {
+    if (!Game::Lua::IsNumber(L, 1)) {
+        Game::Lua::PushBool(L, false);
+        return 1;
+    }
+    const int creatureID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    if (creatureID <= 0) {
+        Game::Lua::PushBool(L, false);
+        return 1;
+    }
+    auto *cache = reinterpret_cast<void *>(Offsets::VAR_CREATURE_CACHE);
+    const bool accepted =
+        Cache::QueryLoad::RequestLoad(cache, static_cast<uint32_t>(creatureID));
+    Game::Lua::PushBool(L, accepted);
+    return 1;
+}
+
+// `C_CreatureInfo.GetRaceInfo(raceID)` — RaceInfo table, or nil for a
+// non-numeric / non-positive id or one with no ChrRaces row.
+int __fastcall Script_GetRaceInfo(void *L) {
+    if (!Game::Lua::IsNumber(L, 1))
+        return 0; // nil
+    const int raceID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const char *file =
+        (raceID > 0) ? DBC::StringField(Offsets::VAR_CHRRACES_RECORDS,
+                                        Offsets::VAR_CHRRACES_COUNT,
+                                        static_cast<uint32_t>(raceID),
+                                        Offsets::OFF_CHRRACES_FILENAME)
+                     : nullptr;
+    if (file == nullptr)
+        return 0; // unknown id -> nil
+    const char *name = DBC::LocalizedField(Offsets::VAR_CHRRACES_RECORDS,
+                                           Offsets::VAR_CHRRACES_COUNT,
+                                           static_cast<uint32_t>(raceID),
+                                           Offsets::OFF_CHRRACES_NAMES);
+
+    Game::Lua::NewTable(L);
+    Game::Lua::SetFieldString(L, "raceName", name); // NULL coerced to ""
+    Game::Lua::SetFieldString(L, "clientFileString", file);
+    Game::Lua::SetFieldNumber(L, "raceID", raceID);
+    return 1;
+}
+
+// `C_CreatureInfo.GetClassInfo(classID)` — ClassInfo table, or nil for a
+// non-numeric / non-positive id or one with no ChrClasses row.
+int __fastcall Script_GetClassInfo(void *L) {
+    if (!Game::Lua::IsNumber(L, 1))
+        return 0; // nil
+    const int classID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const char *file =
+        (classID > 0) ? DBC::StringField(Offsets::VAR_CHRCLASSES_RECORDS,
+                                         Offsets::VAR_CHRCLASSES_COUNT,
+                                         static_cast<uint32_t>(classID),
+                                         Offsets::OFF_CHRCLASSES_FILENAME)
+                      : nullptr;
+    if (file == nullptr)
+        return 0; // unknown id -> nil
+    const char *name = DBC::LocalizedField(Offsets::VAR_CHRCLASSES_RECORDS,
+                                           Offsets::VAR_CHRCLASSES_COUNT,
+                                           static_cast<uint32_t>(classID),
+                                           Offsets::OFF_CHRCLASSES_NAMES);
+
+    Game::Lua::NewTable(L);
+    Game::Lua::SetFieldString(L, "className", name); // NULL coerced to ""
+    Game::Lua::SetFieldString(L, "classFile", file);
+    Game::Lua::SetFieldNumber(L, "classID", classID);
+    return 1;
+}
+
+// `C_CreatureInfo.GetCreatureFamilyInfo(creatureFamilyID)` — CreatureFamilyInfo
+// table for a `CreatureFamily.dbc` row (1 = Wolf, 27 = Wind Serpent, …), or
+// nil for a non-numeric / non-positive / unused id. `iconFile` is a texture
+// path string here (retail exposes a numeric fileID; vanilla's DBC stores the
+// path) — empty "" for families with no icon (e.g. warlock pets).
+int __fastcall Script_GetCreatureFamilyInfo(void *L) {
+    if (!Game::Lua::IsNumber(L, 1))
+        return 0; // nil
+    const int familyID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const char *name =
+        (familyID > 0) ? DBC::LocalizedField(Offsets::VAR_CREATUREFAMILY_RECORDS,
+                                             Offsets::VAR_CREATUREFAMILY_COUNT,
+                                             static_cast<uint32_t>(familyID),
+                                             Offsets::OFF_CREATUREFAMILY_NAMES)
+                       : nullptr;
+    if (name == nullptr)
+        return 0; // unused / OOR id -> nil
+    const char *icon = DBC::StringField(Offsets::VAR_CREATUREFAMILY_RECORDS,
+                                        Offsets::VAR_CREATUREFAMILY_COUNT,
+                                        static_cast<uint32_t>(familyID),
+                                        Offsets::OFF_CREATUREFAMILY_ICON);
+
+    Game::Lua::NewTable(L);
+    Game::Lua::SetFieldNumber(L, "id", familyID);
+    Game::Lua::SetFieldString(L, "name", name);
+    Game::Lua::SetFieldString(L, "iconFile", icon); // NULL/empty coerced to ""
+    return 1;
+}
+
+// `C_CreatureInfo.GetCreatureFamilyIDs()` — array of every populated
+// `CreatureFamily.dbc` id (sparse: skips the unused rows). Round-trips with
+// GetCreatureFamilyInfo for each element.
+int __fastcall Script_GetCreatureFamilyIDs(void *L) {
+    Game::Lua::SetTop(L, 0);
+    Game::Lua::NewTable(L);
+
+    const int count =
+        *reinterpret_cast<const int *>(Offsets::VAR_CREATUREFAMILY_COUNT);
+    int n = 0;
+    for (int id = 1; id <= count; ++id) {
+        const char *name = DBC::LocalizedField(Offsets::VAR_CREATUREFAMILY_RECORDS,
+                                               Offsets::VAR_CREATUREFAMILY_COUNT,
+                                               static_cast<uint32_t>(id),
+                                               Offsets::OFF_CREATUREFAMILY_NAMES);
+        if (name == nullptr)
+            continue; // unused row
+        ++n;
+        Game::Lua::PushNumber(L, static_cast<double>(n));
+        Game::Lua::PushNumber(L, static_cast<double>(id));
+        Game::Lua::SetTable(L, -3);
+    }
+    return 1;
+}
+
+// `C_CreatureInfo.GetFactionInfo(raceID)` — faction-group info for a race:
+// { name = localized ("Alliance"/"Horde"/…), groupTag = english }. Mirrors
+// the player branch of `Script_UnitFactionGroup` (`0x00516630`): resolve the
+// race's FactionTemplate group mask, then scan `FactionGroup.dbc` for the row
+// whose bit the mask sets and whose localized name is non-empty (which is what
+// skips the always-set "Player" / the nameless "Monster" rows and lands on
+// Alliance / Horde). nil for a non-numeric / non-positive / unknown race or a
+// race with no named group. See Offsets.h for the full chain.
+int __fastcall Script_GetFactionInfo(void *L) {
+    if (!Game::Lua::IsNumber(L, 1))
+        return 0; // nil
+    const int raceID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    if (raceID <= 0)
+        return 0;
+
+    const uint8_t *crRec = DBC::Record(Offsets::VAR_CHRRACES_RECORDS,
+                                       Offsets::VAR_CHRRACES_COUNT,
+                                       static_cast<uint32_t>(raceID));
+    if (crRec == nullptr)
+        return 0; // unknown race
+    const int ftId = *reinterpret_cast<const int *>(
+        crRec + Offsets::OFF_CHRRACES_FACTION_TEMPLATE);
+    if (ftId <= 0)
+        return 0;
+
+    const uint8_t *ftRec = DBC::Record(Offsets::VAR_FACTIONTEMPLATE_RECORDS,
+                                       Offsets::VAR_FACTIONTEMPLATE_COUNT,
+                                       static_cast<uint32_t>(ftId));
+    if (ftRec == nullptr)
+        return 0;
+    const uint32_t mask = *reinterpret_cast<const uint32_t *>(
+        ftRec + Offsets::OFF_FACTIONTEMPLATE_GROUP_MASK);
+
+    // FactionGroup is stored contiguously (records-base + i*stride), not as a
+    // pointer array — iterate by hand rather than via DBC::Record.
+    auto *fgBase = *reinterpret_cast<const uint8_t *const *>(
+        Offsets::VAR_FACTIONGROUP_RECORDS);
+    const int fgCount =
+        *reinterpret_cast<const int *>(Offsets::VAR_FACTIONGROUP_COUNT);
+    const int locale = *reinterpret_cast<const int *>(Offsets::VAR_LOCALE_INDEX);
+    if (fgBase == nullptr)
+        return 0;
+
+    for (int i = 0; i < fgCount; ++i) {
+        const uint8_t *row = fgBase + i * Offsets::FACTIONGROUP_STRIDE;
+        const int bit = *reinterpret_cast<const int *>(
+            row + Offsets::OFF_FACTIONGROUP_BIT);
+        if ((mask & (1u << (bit & 0x1F))) == 0)
+            continue;
+        const char *loc = *reinterpret_cast<const char *const *>(
+            row + Offsets::OFF_FACTIONGROUP_NAMES + locale * 4);
+        if (loc == nullptr || *loc == '\0')
+            continue; // "Player" / "Monster" have empty localized names
+        const char *eng = *reinterpret_cast<const char *const *>(
+            row + Offsets::OFF_FACTIONGROUP_ENGLISH);
+
+        Game::Lua::NewTable(L);
+        Game::Lua::SetFieldString(L, "name", loc);
+        Game::Lua::SetFieldString(L, "groupTag", eng);
+        return 1;
+    }
+    return 0; // no named group -> nil
+}
+
+// `C_CreatureInfo.GetCreatureTypeInfo(creatureTypeID)` — CreatureTypeInfo
+// table for a `CreatureType.dbc` row (1 = Beast … 11 = Totem), or nil for a
+// non-numeric / non-positive / unused id.
+int __fastcall Script_GetCreatureTypeInfo(void *L) {
+    if (!Game::Lua::IsNumber(L, 1))
+        return 0; // nil
+    const int typeID = static_cast<int>(Game::Lua::ToNumber(L, 1));
+    const char *name =
+        (typeID > 0) ? DBC::LocalizedField(Offsets::VAR_CREATURETYPE_RECORDS,
+                                           Offsets::VAR_CREATURETYPE_COUNT,
+                                           static_cast<uint32_t>(typeID),
+                                           Offsets::OFF_CREATURETYPE_NAMES)
+                     : nullptr;
+    if (name == nullptr)
+        return 0; // unused / OOR id -> nil
+
+    Game::Lua::NewTable(L);
+    Game::Lua::SetFieldNumber(L, "id", typeID);
+    Game::Lua::SetFieldString(L, "name", name);
+    return 1;
+}
+
+// `C_CreatureInfo.GetCreatureTypeIDs()` — array of every populated
+// `CreatureType.dbc` id (contiguous 1..N in vanilla). Round-trips with
+// GetCreatureTypeInfo for each element.
+int __fastcall Script_GetCreatureTypeIDs(void *L) {
+    Game::Lua::SetTop(L, 0);
+    Game::Lua::NewTable(L);
+
+    const int count =
+        *reinterpret_cast<const int *>(Offsets::VAR_CREATURETYPE_COUNT);
+    int n = 0;
+    for (int id = 1; id <= count; ++id) {
+        const char *name = DBC::LocalizedField(Offsets::VAR_CREATURETYPE_RECORDS,
+                                               Offsets::VAR_CREATURETYPE_COUNT,
+                                               static_cast<uint32_t>(id),
+                                               Offsets::OFF_CREATURETYPE_NAMES);
+        if (name == nullptr)
+            continue;
+        ++n;
+        Game::Lua::PushNumber(L, static_cast<double>(n));
+        Game::Lua::PushNumber(L, static_cast<double>(id));
+        Game::Lua::SetTable(L, -3);
+    }
+    return 1;
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetCreatureInfoByID",
+                                     &Script_GetCreatureInfoByID);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "RequestLoadCreatureByID",
+                                     &Script_RequestLoadCreatureByID);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetRaceInfo",
+                                     &Script_GetRaceInfo);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetClassInfo",
+                                     &Script_GetClassInfo);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetCreatureFamilyInfo",
+                                     &Script_GetCreatureFamilyInfo);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetCreatureFamilyIDs",
+                                     &Script_GetCreatureFamilyIDs);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetFactionInfo",
+                                     &Script_GetFactionInfo);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetCreatureTypeInfo",
+                                     &Script_GetCreatureTypeInfo);
+    Game::Lua::RegisterTableFunction("C_CreatureInfo", "GetCreatureTypeIDs",
+                                     &Script_GetCreatureTypeIDs);
+    Cache::QueryLoad::Register(reinterpret_cast<void *>(Offsets::VAR_CREATURE_CACHE),
+                               kCreatureDataLoadResult, Offsets::FUN_CREATURE_GET_RECORD);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+} // namespace Creature::Info

src/cursor/Info.cpp

@@ -0,0 +1,283 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+// `GetCursorInfo()` — backport of the modern WoW global. Surfaces
+// whatever the player has picked up (item, money, spell, macro,
+// merchant slot) as a tuple. Read from the same cursor-state globals
+// the engine's `CursorHasItem` / `CursorHasSpell` / `GetCursorMoney`
+// consult — see the cursor type table in [[src/Offsets.h]].
+//
+// Return shape per type (matches modern Lua API where it makes sense
+// for 1.12's actual storage):
+//
+//   nothing on cursor       — nil
+//   "item", itemID, link    — bag item (type 1; link is the full
+//                             per-instance form via the engine's link
+//                             builder, including enchantID and
+//                             random-suffix decoration)
+//   "item", itemID          — drag-source item (types 5/6/7 trade /
+//                             mail / action bar; type 9 equipment
+//                             slot) — only the itemID is in cursor
+//                             storage, no live CGItem to feed the
+//                             link builder
+//   "money", amount         — type 2; amount in copper
+//   "spell", slot, bookType, spellID
+//                           — type 3; bookType is "spell" or "pet"
+//                             (1.12 only writes player-spell IDs to
+//                             this slot, so bookType is always
+//                             "spell" here; the cursor's "pet
+//                             action" path is a distinct type)
+//   "macro", index          — type 8; 1-based macro index
+//   "merchant", index       — type 10; 1-based merchant-roster index
+//
+// Type 4 (pet action) is not surfaced — doesn't map cleanly to a
+// modern `GetCursorInfo` string. Consumers can fall back to
+// `CursorHasItem` / engine `PickupX` calls when they need to detect
+// that.
+
+#include "cursor/Info.h"
+
+#include "Game.h"
+#include "Offsets.h"
+#include "item/ID.h"
+#include "item/Link.h"
+#include "item/Location.h"
+#include "item/QualityColor.h"
+#include "spell/Lookup.h"
+
+#include <cstdint>
+#include <cstdio>
+
+namespace Cursor::Info {
+
+namespace {
+
+// Engine signature is `__thiscall(this = typeFilter, guidLo, guidHi,
+// unused)`. The "this" param is just a small integer filter — Ghidra
+// shows it cast as `(void *)0x2` at every call site for items. The
+// function reads only the first two stack args (`[ebp+8]` and
+// `[ebp+0xC]`) but cleans 12 bytes via `ret 0xc`, so the caller must
+// push a third dword for stack balance — engine callers push a
+// scratch dword (`0x90`, `0x1C13`, etc.) for this. Declaring a 4th
+// arg here makes MSVC emit the matching push; without it, stack
+// imbalance of -4 bytes silently corrupts the caller's frame and
+// (downstream) wedges things like chat input.
+using ObjectFromGUID_t = uint8_t *(__thiscall *)(uintptr_t typeFilter,
+                                                  uint32_t guidLo, uint32_t guidHi,
+                                                  uint32_t unused);
+
+constexpr uint32_t TYPE_EMPTY = 0;
+constexpr uint32_t TYPE_BAG_ITEM = 1;
+constexpr uint32_t TYPE_MONEY = 2;
+constexpr uint32_t TYPE_SPELL = 3;
+// Type 5 = merchant pickup. Written by `Script_PickupMerchantItem`
+// (`0x004FB760`) via `FUN_004950F0(itemID, ?, slot0Based, 5)`. The
+// itemID lands in `VAR_CURSOR_GENERIC_SLOT` and the 0-based merchant
+// slot in `VAR_CURSOR_GENERIC_SOURCE` — we push slot+1 to Lua to
+// match modern's 1-based merchant convention.
+constexpr uint32_t TYPE_MERCHANT = 5;
+// Types 6/7/9 — drag-source items from various pickup paths. All
+// share the same storage trio. Type 7 is action-bar item pickup
+// (`FUN_004E6130`), type 9 is equipment-slot pickup (`FUN_004C7300`),
+// and type 6 is another drag-source path (mail or similar). In all
+// cases the itemID is at `VAR_CURSOR_GENERIC_SLOT`. For modern API
+// compat we surface them as `"item"`.
+constexpr uint32_t TYPE_GENERIC_ITEM_LO = 6;
+constexpr uint32_t TYPE_GENERIC_ITEM_HI = 7;
+constexpr uint32_t TYPE_MACRO = 8;
+constexpr uint32_t TYPE_INVENTORY_ITEM = 9;
+// Type 10 is stable-pet pickup (`FUN_00495010`, the source of the
+// earlier misidentification as "merchant"). Modern WoW has no
+// equivalent `GetCursorInfo` return for stable pets, so we leave it
+// as nil.
+
+constexpr uint32_t GUID_TYPE_FILTER_ITEM = 0x2;
+
+uint32_t ReadVar(uintptr_t va) {
+    return *reinterpret_cast<const uint32_t *>(va);
+}
+
+int PushItem(void *L, const uint8_t *cgItem) {
+    if (cgItem == nullptr)
+        return 0;
+    const int itemID = Item::ID::FromCGItem(cgItem);
+    if (itemID <= 0)
+        return 0;
+    Game::Lua::PushString(L, "item");
+    Game::Lua::PushNumber(L, static_cast<double>(itemID));
+    // Engine link builder works fine on cursored items — the cursor
+    // leaves the instance block at `+0x08` and the m_objectFields
+    // descriptor at `+0x114` intact, which is all the builder reads
+    // (plus a virtual call into the sub-object at `+0x110`, whose
+    // vftable is also untouched while held on the cursor). Earlier
+    // crash repros were the stack-imbalance bug in the GUID resolver
+    // — see Offsets::FUN_OBJECT_FROM_GUID.
+    const char *link = Item::Link::FromCGItem(cgItem);
+    if (link != nullptr && *link != '\0') {
+        Game::Lua::PushString(L, link);
+        return 3;
+    }
+    return 2;
+}
+
+int PushBagItemCursor(void *L) {
+    const uint32_t lo = ReadVar(Offsets::VAR_CURSOR_ITEM_GUID_LO);
+    const uint32_t hi = ReadVar(Offsets::VAR_CURSOR_ITEM_GUID_HI);
+    if (lo == 0 && hi == 0)
+        return 0;
+    auto resolver = reinterpret_cast<ObjectFromGUID_t>(Offsets::FUN_OBJECT_FROM_GUID);
+    const uint8_t *cgItem = resolver(GUID_TYPE_FILTER_ITEM, lo, hi, 0);
+    return PushItem(L, cgItem);
+}
+
+using GetItemRecord_t = const uint8_t *(__thiscall *)(void *cache, uint32_t itemID,
+                                                      const uint64_t *guid, void *callback,
+                                                      void *userData, int unused);
+
+const uint8_t *PeekItemRecord(uint32_t itemID) {
+    auto fn = reinterpret_cast<GetItemRecord_t>(Offsets::FUN_DBCACHE_ITEMSTATS_GET_RECORD);
+    auto *cache = reinterpret_cast<void *>(Offsets::VAR_ITEMDB_CACHE);
+    const uint64_t zeroGuid = 0;
+    return fn(cache, itemID, &zeroGuid, nullptr, nullptr, 0);
+}
+
+// Builds a basic `"|cffRRGGBB|Hitem:N:0:0:0|h[Name]|h|r"` link from
+// the cached ItemStats record for `itemID`. No enchant / random-
+// suffix decoration — the cursor only stores the bare itemID for
+// drag-source items (types 6/7/9) with no live `CGItem *` to read
+// instance state from. Returns true and writes into `out` (size
+// `outSize`) on success; returns false if the item isn't cached.
+bool BuildBasicItemLink(uint32_t itemID, char *out, size_t outSize) {
+    const uint8_t *record = PeekItemRecord(itemID);
+    if (record == nullptr) return false;
+    const char *name = *reinterpret_cast<const char *const *>(
+        record + Offsets::OFF_ITEMSTATS_NAME);
+    if (name == nullptr || *name == '\0') return false;
+    const uint32_t quality = *reinterpret_cast<const uint32_t *>(
+        record + Offsets::OFF_ITEMSTATS_QUALITY);
+    const int n = std::snprintf(out, outSize,
+        "%s|Hitem:%u:0:0:0|h[%s]|h|r",
+        Item::QualityColor::Prefix(static_cast<int>(quality)),
+        itemID, name);
+    return n > 0 && static_cast<size_t>(n) < outSize;
+}
+
+// Shared path for types 6/7 (action bar / mail drag) and type 9
+// (equipment slot). All three write the itemID at
+// `VAR_CURSOR_GENERIC_SLOT` — see the type-table notes in
+// [[src/Offsets.h]]. The cursor doesn't preserve a GUID for these,
+// so the live CGItem isn't directly addressable here. To recover
+// enchant / random-suffix decoration we walk the player's
+// equipment + bags looking for the first CGItem with a matching
+// itemID — same trick the action-bar tooltip uses to display
+// enchanted bracers correctly when they're on an action bar. Falls
+// back to a basic ID-only link when no instance is found (item was
+// deleted, or it's a vendor-roster reference with no local copy).
+int PushGenericItemCursor(void *L) {
+    const uint32_t itemID = ReadVar(Offsets::VAR_CURSOR_GENERIC_SLOT);
+    if (itemID == 0)
+        return 0;
+    Game::Lua::PushString(L, "item");
+    Game::Lua::PushNumber(L, static_cast<double>(itemID));
+
+    Item::Location::ByGUIDResult found;
+    if (Item::Location::FindByItemID(L, static_cast<int>(itemID), &found)) {
+        const char *link = Item::Link::FromCGItem(found.item);
+        if (link != nullptr && *link != '\0') {
+            Game::Lua::PushString(L, link);
+            return 3;
+        }
+    }
+
+    char linkBuf[256];
+    if (BuildBasicItemLink(itemID, linkBuf, sizeof(linkBuf))) {
+        Game::Lua::PushString(L, linkBuf);
+        return 3;
+    }
+    return 2;
+}
+
+int PushMoneyCursor(void *L) {
+    const uint32_t copper = ReadVar(Offsets::VAR_CURSOR_MONEY_COPPER);
+    Game::Lua::PushString(L, "money");
+    Game::Lua::PushNumber(L, static_cast<double>(copper));
+    return 2;
+}
+
+int PushSpellCursor(void *L) {
+    const uint32_t spellID = ReadVar(Offsets::VAR_CURSOR_SPELL_ID);
+    if (spellID == 0)
+        return 0;
+    int bookType = 0;
+    const int slot = Spell::Lookup::FindSpellbookSlot(
+        static_cast<int>(spellID), &bookType);
+    Game::Lua::PushString(L, "spell");
+    // Slot can be 0 (rare — talent-passive auras the player has but
+    // that have no spellbook entry). Push it anyway; the modern API's
+    // contract is "slot may be 0 when there's no book row".
+    Game::Lua::PushNumber(L, static_cast<double>(slot));
+    Game::Lua::PushString(L, bookType == 1 ? "pet" : "spell");
+    Game::Lua::PushNumber(L, static_cast<double>(spellID));
+    return 4;
+}
+
+int PushMacroCursor(void *L) {
+    const uint32_t index = ReadVar(Offsets::VAR_CURSOR_MACRO_INDEX);
+    if (index == 0)
+        return 0;
+    Game::Lua::PushString(L, "macro");
+    Game::Lua::PushNumber(L, static_cast<double>(index));
+    return 2;
+}
+
+int PushMerchantCursor(void *L) {
+    // Engine stores the 0-based merchant slot at
+    // `VAR_CURSOR_GENERIC_SOURCE`. Convert to 1-based for the modern
+    // Lua-API contract (`MerchantItemButton`s and friends are
+    // 1-indexed).
+    const uint32_t slot0 = ReadVar(Offsets::VAR_CURSOR_GENERIC_SOURCE);
+    Game::Lua::PushString(L, "merchant");
+    Game::Lua::PushNumber(L, static_cast<double>(slot0 + 1));
+    return 2;
+}
+
+int __fastcall Script_GetCursorInfo(void *L) {
+    const uint32_t type = ReadVar(Offsets::VAR_CURSOR_TYPE);
+    if (type >= TYPE_GENERIC_ITEM_LO && type <= TYPE_GENERIC_ITEM_HI)
+        return PushGenericItemCursor(L);
+    switch (type) {
+        case TYPE_BAG_ITEM:       return PushBagItemCursor(L);
+        case TYPE_MERCHANT:       return PushMerchantCursor(L);
+        case TYPE_INVENTORY_ITEM: return PushGenericItemCursor(L);
+        case TYPE_MONEY:          return PushMoneyCursor(L);
+        case TYPE_SPELL:          return PushSpellCursor(L);
+        case TYPE_MACRO:          return PushMacroCursor(L);
+        case TYPE_EMPTY:
+        default:                  return 0;
+    }
+}
+
+void RegisterLuaFunctions() {
+    Game::Lua::RegisterGlobalFunction("GetCursorInfo", &Script_GetCursorInfo);
+}
+
+const Game::ModuleAutoRegister _autoreg{&RegisterLuaFunctions};
+
+} // namespace
+
+bool HasItem() {
+    return ReadVar(Offsets::VAR_CURSOR_ITEM_GUID_LO) != 0 ||
+           ReadVar(Offsets::VAR_CURSOR_ITEM_GUID_HI) != 0;
+}
+
+} // namespace Cursor::Info

src/cursor/Info.h

@@ -0,0 +1,24 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+namespace Cursor::Info {
+
+// True if a GUID-bearing item is currently on the cursor —
+// `VAR_CURSOR_ITEM_GUID != 0`, the same globals `GetCursorInfo`'s bag-item
+// path reads and the exact signal the engine's item-pickup path guards on.
+// Used to gate cursor pickups (don't clobber a held item).
+bool HasItem();
+
+} // namespace Cursor::Info

src/cvar/Bool.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Game.h"

src/cvar/Factory.cpp

@@ -0,0 +1,101 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#include "cvar/Factory.h"
+
+#include "Offsets.h"
+
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+
+namespace CVar::Factory {
+
+namespace {
+
+// `FUN_REGISTER_CVAR` — verified ABI (see Offsets.h and the calibration
+// against the engine's own call site at 0x005E2490 / the Lua
+// Script_RegisterCVar path). MSVC `__fastcall` places the first two args in
+// ECX/EDX and pushes the rest right-to-left, which reproduces the engine's
+// exact push order: flags, defaultValue, callback, categoryId, hiddenBool,
+// userData (with flags as the first stack arg / last push).
+using RegisterCVar_t = void *(__fastcall *)(const char *name, int edxZero,
+                                            uint32_t flags,
+                                            const char *defaultValue,
+                                            ChangeCallback callback,
+                                            int categoryId, int hiddenBool,
+                                            void *userData);
+
+using FindCVar_t = void *(__fastcall *)(const char *name);
+
+// `FUN_SET_CVAR_VALUE` — `__thiscall(cvar /*ecx*/, value, a3, a4, a5, a6)`,
+// i.e. ECX=cvar with `value` AND a3..a6 all passed on the stack (5 stack
+// args; the function cleans 20 bytes / `RET 0x14`). NOT __fastcall — that
+// would route `value` through EDX, push only 4 args, and leave the callee
+// popping 4 bytes too many → ESP corruption → silent crash. Mirror the
+// Script_SetCVar invocation (0x00488CA8): a3..a6 = 1, 0, 0, 1.
+using SetCVarValue_t = char(__thiscall *)(void *cvar, const char *value,
+                                          int a3, int a4, int a5, int a6);
+
+const char *ReadValue(void *cvar) {
+    if (cvar == nullptr)
+        return nullptr;
+    return *reinterpret_cast<const char *const *>(
+        static_cast<const uint8_t *>(cvar) + Offsets::OFF_CVAR_VALUE_STR);
+}
+
+} // namespace
+
+Handle Register(const char *name, const char *defaultValue, uint32_t flags,
+                ChangeCallback callback, void *userData) {
+    if (name == nullptr)
+        return nullptr;
+    auto reg = reinterpret_cast<RegisterCVar_t>(Offsets::FUN_REGISTER_CVAR);
+    return reg(name, /*edxZero*/ 0, flags, defaultValue, callback,
+               Offsets::CVAR_SCRIPT_CATEGORY, /*hiddenBool*/ 0, userData);
+}
+
+Handle Find(const char *name) {
+    if (name == nullptr)
+        return nullptr;
+    auto find = reinterpret_cast<FindCVar_t>(Offsets::FUN_FIND_CVAR);
+    return find(name);
+}
+
+const char *GetString(Handle cvar) {
+    return ReadValue(cvar);
+}
+
+int GetInt(Handle cvar, int fallback) {
+    const char *value = ReadValue(cvar);
+    if (value == nullptr || value[0] == '\0')
+        return fallback;
+    return std::atoi(value);
+}
+
+void SetString(Handle cvar, const char *value) {
+    if (cvar == nullptr || value == nullptr)
+        return;
+    auto set = reinterpret_cast<SetCVarValue_t>(Offsets::FUN_SET_CVAR_VALUE);
+    set(cvar, value, 1, 0, 0, 1);
+}
+
+void SetInt(Handle cvar, int value) {
+    char buf[16];
+    // Hand-format to avoid pulling in a locale-aware path; value range for
+    // our cvars is small, 16 bytes is ample for a 32-bit int + sign + NUL.
+    std::snprintf(buf, sizeof buf, "%d", value);
+    SetString(cvar, buf);
+}
+
+} // namespace CVar::Factory

src/cvar/Factory.h

@@ -0,0 +1,80 @@
+// This file is part of ClassicAPI.
+//
+// ClassicAPI is free software: you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software Foundation, either
+// version 3 of the License, or (at your option) any later version.
+//
+// ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+// PURPOSE. See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <cstdint>
+
+// CVar::Factory — create and drive engine CVars from C++.
+//
+// Vanilla 1.12 only exposes CVar *reading* and *registration without a
+// callback* through Lua (`RegisterCVar(name, default)`); there's no way for
+// an addon to register a cvar with a change-callback or to react to value
+// changes. This wraps the engine's internal registrar (`FUN_REGISTER_CVAR`)
+// and value-setter (`FUN_SET_CVAR_VALUE`) so other modules can publish
+// persisted, validated settings (clamped via the change callback and saved
+// to Config.wtf).
+//
+// CVars registered here persist to `WTF\Config.wtf` (the engine forces the
+// archive flag bit on at registration) and are visible to the in-game Lua
+// `GetCVar`/`SetCVar` globals, since cvar storage is process-global.
+
+namespace CVar::Factory {
+
+// Opaque handle to an engine CVar. Stable for the cvar's lifetime (vanilla
+// never reallocates a registered cvar).
+using Handle = void *;
+
+// Change callback. Fires whenever the cvar's value changes (and once at
+// registration). Mirrors the engine ABI verified at FUN_SET_CVAR_VALUE:
+//   - `cvar`      — this cvar's Handle
+//   - `prevValue` — the value before the change (may be null/empty)
+//   - `newValue`  — the value being applied
+//   - `userData`  — whatever was passed to Register
+// Return a nonzero value to ACCEPT the change, 0 to REJECT it (the engine
+// keeps the previous value). To clamp rather than reject, set the clamped
+// value with SetString from inside the callback and return 0 for the
+// out-of-range input. Must tolerate being invoked with partial context.
+using ChangeCallback = int(__fastcall *)(Handle cvar, const char *prevValue,
+                                         const char *newValue, void *userData);
+
+// Register a cvar (or fetch the existing one — the engine dedups by name,
+// and re-registering OR-merges `flags` and updates the callback). `name`
+// and `defaultValue` must outlive the process (the engine stores `name` by
+// pointer; pass string literals). `defaultValue` may be null for "". The
+// returned Handle is never null on success; null only if the engine
+// registrar itself failed.
+Handle Register(const char *name, const char *defaultValue,
+                uint32_t flags = 0, ChangeCallback callback = nullptr,
+                void *userData = nullptr);
+
+// Look up an already-registered cvar by name, or null if none.
+Handle Find(const char *name);
+
+// Read the cvar's current value string (the raw engine pointer at
+// `+OFF_CVAR_VALUE_STR`). Returns null if `cvar` is null. The pointer is
+// valid for the cvar's lifetime.
+const char *GetString(Handle cvar);
+
+// Read the value parsed as a base-10 integer, or `fallback` if `cvar` is
+// null or the value isn't numeric.
+int GetInt(Handle cvar, int fallback = 0);
+
+// Set the cvar's value (fires its change callback). No-op if `cvar` is
+// null. `value` is copied by the engine into the cvar's inline buffer.
+void SetString(Handle cvar, const char *value);
+
+// Convenience: set from an integer.
+void SetInt(Handle cvar, int value);
+
+} // namespace CVar::Factory

src/cvar/Glue.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 // Glue-side CVar bindings. Vanilla 1.12 registers `GetCVar`,

src/dbc/Lookup.cpp

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #include "Lookup.h"

src/dbc/Lookup.h

@@ -1,14 +1,14 @@
 // This file is part of ClassicAPI.
 //
 // ClassicAPI is free software: you can redistribute it and/or modify it under the terms
-// of the GNU Lesser General Public License as published by the Free Software Foundation, either
+// of the GNU General Public License as published by the Free Software Foundation, either
 // version 3 of the License, or (at your option) any later version.
 //
 // ClassicAPI is distributed in the hope that it will be useful, but WITHOUT ANY
 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-// PURPOSE. See the GNU Lesser General Public License for more details.
+// PURPOSE. See the GNU General Public License for more details.
 //
-// You should have received a copy of the GNU Lesser General Public License along with
+// You should have received a copy of the GNU General Public License along with
 // ClassicAPI. If not, see <https://www.gnu.org/licenses/>.
 
 #pragma once