Move marker animation tick to DLL-side OnWorldUpdate hook

- Hook OnWorldUpdate (0x482EA0) for per-frame tick while world is active
- Remove Lua OnUpdate animation driver (ProcessMarkerAnimations)
- Add DistanceToMark(index) Lua API returning player-to-marker distance
- Track marker positions DLL-side for distance queries
- Clean up positions on marker clear and world teardown

src/markers/addon/Markers.lua

@@ -14,78 +14,42 @@ frame:SetScript("OnEvent", function()
     end
 end)
 
--- Per-frame animation driver: queues Hold after Stand finishes on new
--- markers and re-queues it periodically so it never falls back to Stand.
-local animFrame = CreateFrame("Frame")
-animFrame:SetScript("OnUpdate", function()
-    ProcessMarkerAnimations()
-end)
-
-SLASH_MARKERS1 = "/markers"
-SLASH_MARKERS2 = "/mark"
-SlashCmdList["MARKERS"] = function(msg)
+SLASH_WORLDMARKER1 = "/worldmarker"
+SLASH_WORLDMARKER2 = "/wm"
+SlashCmdList["WORLDMARKER"] = function(msg)
     msg = string.lower(msg or "")
 
-    if msg == "" or msg == "help" then
-        DEFAULT_CHAT_FRAME:AddMessage("|cff00ff00Markers|r commands:")
-        DEFAULT_CHAT_FRAME:AddMessage("  /mark <1-5>              - Place marker at cursor")
-        DEFAULT_CHAT_FRAME:AddMessage("  /mark <1-5> <unit>       - Place marker at unit")
-        DEFAULT_CHAT_FRAME:AddMessage("  /mark <1-5> <x> <y> <z>  - Place marker at coords")
-        DEFAULT_CHAT_FRAME:AddMessage("  /mark clear [1-5]        - Clear one or all markers")
-        DEFAULT_CHAT_FRAME:AddMessage("  /mark pos                - Show player position")
+    -- Parse arguments
+    local parts = {}
+    for word in string.gfind(msg, "%S+") do
+        table.insert(parts, word)
+    end
 
-    elseif msg == "clear" then
-        ClearWorldMarker()
-        DEFAULT_CHAT_FRAME:AddMessage("|cff00ff00Markers:|r all cleared")
-
-    elseif msg == "pos" or msg == "position" then
-        local x, y, z = GetPlayerPosition()
-        if x then
-            DEFAULT_CHAT_FRAME:AddMessage(string.format("Position: %.2f, %.2f, %.2f", x, y, z))
-        else
-            DEFAULT_CHAT_FRAME:AddMessage("|cffff0000No player position available|r")
-        end
+    local index = tonumber(parts[1])
+    if not index then
+        DEFAULT_CHAT_FRAME:AddMessage("|cff00ff00World Markers|r commands:")
+        DEFAULT_CHAT_FRAME:AddMessage("  /wm 1-5          - Place marker at cursor")
+        DEFAULT_CHAT_FRAME:AddMessage("  /wm 1-5 <unit>   - Place marker at unit")
+        DEFAULT_CHAT_FRAME:AddMessage("  /cwm [1-5]       - Clear one or all markers")
+        return
+    end
 
+    if parts[2] then
+        -- /wm 1 target
+        WorldMarker(index, parts[2])
     else
-        -- Parse arguments
-        local parts = {}
-        for word in string.gfind(msg, "%S+") do
-            table.insert(parts, word)
-        end
+        -- /wm 1 (cursor position)
+        WorldMarker(index)
+    end
+end
 
-        -- /mark clear <index>
-        if parts[1] == "clear" then
-            local index = tonumber(parts[2])
-            if index then
-                ClearWorldMarker(index)
-            else
-                ClearWorldMarker()
-            end
-            return
-        end
-
-        local index = tonumber(parts[1])
-        if not index then
-            DEFAULT_CHAT_FRAME:AddMessage("|cffff0000Usage:|r /mark <1-5> [unit | x y z] or /mark clear")
-            return
-        end
-
-        if tonumber(parts[2]) then
-            -- /mark 1 x y z
-            local x = tonumber(parts[2])
-            local y = tonumber(parts[3])
-            local z = tonumber(parts[4])
-            if x and y and z then
-                WorldMarker(index, x, y, z)
-            else
-                DEFAULT_CHAT_FRAME:AddMessage("|cffff0000Usage:|r /mark <1-5> <x> <y> <z>")
-            end
-        elseif parts[2] then
-            -- /mark 1 target
-            WorldMarker(index, parts[2])
-        else
-            -- /mark 1 (cursor position)
-            WorldMarker(index)
-        end
+SLASH_CLEARWORLDMARKER1 = "/clearworldmarker"
+SLASH_CLEARWORLDMARKER2 = "/cwm"
+SlashCmdList["CLEARWORLDMARKER"] = function(msg)
+    local index = tonumber(msg or "")
+    if index then
+        ClearWorldMarker(index)
+    else
+        ClearWorldMarker()
     end
 end