Restore Real Health Numbers and fix aura dragging
Restore Real Health Numbers as a standalone module with a lazy Vanilla health estimator fallback, keep Big Health presentation-only, clarify the module tooltip, and fix aura dragging for BuffButton0/BuffButton32/TempEnchant1 without StartMoving().
This commit is contained in:
Dusk-92
@@ -0,0 +1,206 @@
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local _G = ShaguTweaks.GetGlobalEnv()
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-- Real-health fallback for stock Vanilla servers.
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--
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-- Turtle WoW and some custom clients expose real UnitHealth/UnitHealthMax
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-- values directly. Stock 1.12 often exposes target health as 0..100 instead.
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-- Keep the original ShaguTweaks estimation idea, but leave it completely
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-- dormant until Real Health Numbers asks for it and only listen to combat/
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-- health events while the current target actually needs estimation.
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local mobdb = {}
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local targetKey
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local damage = 0
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local percent = 0
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local libhealth = CreateFrame("Frame")
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libhealth.enabled = false
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libhealth.reqhit = 2
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libhealth.reqdmg = 10
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local function InitCache()
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ShaguTweaks_cache = ShaguTweaks_cache or {}
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ShaguTweaks_cache["libhealth"] = ShaguTweaks_cache["libhealth"] or {}
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mobdb = ShaguTweaks_cache["libhealth"]
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end
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local function IsPercentHealth(unit)
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if not unit or not UnitExists(unit) then return false end
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local cur = _G.UnitHealth(unit)
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local max = _G.UnitHealthMax(unit)
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return cur ~= nil and max == 100 and cur <= 100
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end
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local function StopSampling()
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libhealth:UnregisterEvent("UNIT_COMBAT")
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libhealth:UnregisterEvent("UNIT_HEALTH")
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end
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local function StartSampling()
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libhealth:RegisterEvent("UNIT_COMBAT")
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libhealth:RegisterEvent("UNIT_HEALTH")
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end
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local function SelectTarget()
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StopSampling()
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damage = 0
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percent = _G.UnitHealth("target") or 0
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targetKey = nil
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if not IsPercentHealth("target") then return end
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local name = UnitName("target")
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local level = UnitLevel("target")
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if not name or not level then return end
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targetKey = string.format("%s:%s", name, level)
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StartSampling()
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end
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local function GetCachedHealth(unitstr, cur, max)
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local name = UnitName(unitstr)
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local level = UnitLevel(unitstr)
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if not name or not level then return cur, max end
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local key = string.format("%s:%s", name, level)
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local data = mobdb[key]
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if data and data[1] and data[2]
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and data[2] > libhealth.reqdmg
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and (not data[3] or data[3] > libhealth.reqhit) then
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return ceil(data[1] / 100 * cur), data[1], true
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end
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return cur, max
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end
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-- ClassicAPI can expose the real health deficit even when stock UnitHealth()
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-- still reports a percentage. Use that as an immediate estimate when possible.
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-- At 100% there is no deficit to derive a maximum from, so the historical
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-- combat estimator/cache remains useful.
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local function GetMissingHealthEstimate(unitstr, cur, max)
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if max ~= 100 or cur >= 100 then return end
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if type(_G.UnitHealthMissing) ~= "function" then return end
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local missing = _G.UnitHealthMissing(unitstr)
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local lostPercent = 100 - cur
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if not missing or missing <= 0 or lostPercent <= 0 then return end
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local estimatedMax = ceil(missing / lostPercent * 100)
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if estimatedMax < 100 then return end
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local estimatedCur = estimatedMax - missing
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if estimatedCur < 0 then estimatedCur = 0 end
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return estimatedCur, estimatedMax, true
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end
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function libhealth:GetUnitHealth(unitstr)
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-- Preserve the old public library behavior for external consumers while
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-- keeping the estimator lazy: the first actual query activates it.
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if not self.enabled then self:Enable() end
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local cur = _G.UnitHealth(unitstr)
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local max = _G.UnitHealthMax(unitstr)
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if not cur or not max then return cur or 0, max or 0 end
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-- Real values are already available: do not estimate.
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if cur > 100 or max > 100 or max < 100 then
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return cur, max, true
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end
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local missingCur, missingMax, missingKnown =
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GetMissingHealthEstimate(unitstr, cur, max)
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if missingKnown then
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return missingCur, missingMax, true
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end
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return GetCachedHealth(unitstr, cur, max)
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end
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function libhealth:GetUnitHealthByName(name, level, cur, max)
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if not self.enabled then self:Enable() end
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if not cur or not max then return cur or 0, max or 0 end
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if cur > 100 or max > 100 or max < 100 then
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return cur, max, true
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end
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if not name or not level then return cur, max end
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local key = string.format("%s:%s", name, level)
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local data = mobdb[key]
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if data and data[1] and data[2]
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and data[2] > libhealth.reqdmg
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and (not data[3] or data[3] > libhealth.reqhit) then
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return ceil(data[1] / 100 * cur), data[1], true
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end
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return cur, max
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end
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function libhealth:Enable()
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if self.enabled then return end
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self.enabled = true
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InitCache()
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self:RegisterEvent("PLAYER_ENTERING_WORLD")
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self:RegisterEvent("PLAYER_TARGET_CHANGED")
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SelectTarget()
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end
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function libhealth:Disable()
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if not self.enabled then return end
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self.enabled = false
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self:UnregisterAllEvents()
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targetKey = nil
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damage = 0
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percent = 0
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end
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libhealth:SetScript("OnEvent", function()
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if not libhealth.enabled then return end
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if event == "PLAYER_ENTERING_WORLD" then
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InitCache()
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SelectTarget()
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elseif event == "PLAYER_TARGET_CHANGED" then
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SelectTarget()
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elseif targetKey and event == "UNIT_COMBAT" and arg1 == "target" then
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if arg2 == "HEAL" then return end
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local amount = tonumber(arg4) or 0
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if amount > 0 then
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damage = damage + amount
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end
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elseif targetKey and event == "UNIT_HEALTH" and arg1 == "target" then
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local currentPercent = _G.UnitHealth("target") or 0
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local diff = percent - currentPercent
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if damage > 0 and diff > 0 then
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local estimate = ceil(damage / diff * 100)
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local data = mobdb[targetKey]
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if not data or not data[2] or diff > data[2] then
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mobdb[targetKey] = {
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estimate,
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diff,
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data and data[3] and data[3] + 1 or 1,
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}
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elseif data then
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data[3] = data[3] and data[3] + 1 or 1
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end
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end
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damage = 0
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percent = currentPercent
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end
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end)
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ShaguTweaks.libhealth = libhealth
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