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303
Libraries/oUF_Plugins/oUF_Cutaway/oUF_Cutaway.lua
Normal file
303
Libraries/oUF_Plugins/oUF_Cutaway/oUF_Cutaway.lua
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local _, ns = ...
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local oUF = _G.oUF or ns.oUF
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assert(oUF, "oUF_Cutaway was unable to locate oUF install.")
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--[[
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Configuration values for both health and power:
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.enabled: enable cutaway for this element, defaults to disabled
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.fadeOutTime: How long it takes the cutaway health to fade, defaults to 0.6 seconds
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.lengthBeforeFade: How long it takes before the cutaway begins to fade, defaults to 0.3 seconds
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]]
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-- GLOBALS: ElvUI
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local max = math.max
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local assert = assert
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local hooksecurefunc = hooksecurefunc
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local UnitHealthMax = UnitHealthMax
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local UnitPowerMax = UnitPowerMax
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local UnitIsTapDenied = UnitIsTapDenied
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local UnitGUID = UnitGUID
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local E -- placeholder
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local function checkElvUI()
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if not E then
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E = ElvUI and ElvUI[1]
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assert(E, "oUF_Cutaway was not able to locate ElvUI and it is required.")
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end
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end
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local function closureFunc(self)
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self.ready = nil
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self.playing = nil
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self.cur = nil
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end
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local function fadeClosure(element)
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if not element.FadeObject then
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element.FadeObject = {
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finishedFuncKeep = true,
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finishedArg1 = element,
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finishedFunc = closureFunc
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}
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end
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E:UIFrameFadeOut(element, element.fadeOutTime, element.__parentElement:GetAlpha(), 0)
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end
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local function Shared_PreUpdate(self, element, unit)
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element.unit = unit
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local oldGUID, newGUID = element.guid, UnitGUID(unit)
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element.guid = newGUID
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if not oldGUID or oldGUID ~= newGUID then
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return
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end
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element.cur = self.cur
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element.ready = true
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end
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local function UpdateSize(self, element, curV, maxV)
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local isVertical = self:GetOrientation() == 'VERTICAL'
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local pm = (isVertical and self:GetHeight()) or self:GetWidth()
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local oum = (1 / maxV) * pm
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local c = max(element.cur - curV, 0)
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local mm = c * oum
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if isVertical then
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element:Height(mm)
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else
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element:Width(mm)
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end
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end
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local PRE, POST = 0, 1
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local function Shared_UpdateCheckReturn(self, element, updateType, ...)
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if not element:IsVisible() then
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return true
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end
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if updateType == PRE then
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local maxV = ...
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return (not element.enabled or not self.cur) or element.ready or not maxV or maxV == 0
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elseif updateType == POST then
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local curV, maxV, unit = ...
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return (not element.enabled or not element.cur) or (not element.ready or not curV or not maxV or maxV == 0) or element.unit ~= unit
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end
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end
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local function Health_PreUpdate(self, unit)
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local element = self.__owner.Cutaway.Health
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local maxV = (element.GetHealthMax or UnitHealthMax)(unit)
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if Shared_UpdateCheckReturn(self, element, PRE, maxV) or UnitIsTapDenied(unit) then
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return
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end
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Shared_PreUpdate(self, element, unit)
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end
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local function Health_PostUpdate(self, unit, curHealth, maxHealth)
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local element = self.__owner.Cutaway.Health
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if Shared_UpdateCheckReturn(self, element, POST, curHealth, maxHealth, unit) then
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return
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end
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UpdateSize(self, element, curHealth, maxHealth)
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if element.playing then
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return
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end
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if (element.cur - curHealth) > (maxHealth * 0.01) then
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element:SetAlpha(self:GetAlpha())
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E:Delay(element.lengthBeforeFade, fadeClosure, element)
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element.playing = true
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else
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element:SetAlpha(0)
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closureFunc(element)
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end
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end
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local function Health_PostUpdateColor(self, r, g, b)
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self.__owner.Cutaway.Health:SetVertexColor(r * 1.5, g * 1.5, b * 1.5)
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end
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local function Power_PreUpdate(self, unit)
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local element = self.__owner.Cutaway.Power
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local maxV = (element.GetPowerMax or UnitPowerMax)(unit)
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if Shared_UpdateCheckReturn(self, element, PRE, maxV) then
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return
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end
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Shared_PreUpdate(self, element, unit)
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end
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local function Power_PostUpdate(self, unit, curPower, _, maxPower)
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local element = self.__owner.Cutaway.Power
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if Shared_UpdateCheckReturn(self, element, POST, curPower, maxPower, unit) then
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return
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end
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UpdateSize(self, element, curPower, maxPower)
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if element.playing then
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return
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end
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if (element.cur - curPower) > (maxPower * 0.01) then
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element:SetAlpha(self:GetAlpha())
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E:Delay(element.lengthBeforeFade, fadeClosure, element)
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element.playing = true
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else
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element:SetAlpha(0)
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closureFunc(element)
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end
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end
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local function Power_PostUpdateColor(self, r, g, b)
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self.__owner.Cutaway.Power:SetVertexColor(r * 1.5, g * 1.5, b * 1.5)
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end
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local defaults = {
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health = {
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enabled = false,
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lengthBeforeFade = 0.3,
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fadeOutTime = 0.6
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},
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power = {
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enabled = false,
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lengthBeforeFade = 0.3,
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fadeOutTime = 0.6
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}
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}
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local function UpdateConfigurationValues(self, db)
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local hs, ps = false, false
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if self.Health then
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local health = self.Health
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local hdb = db.health
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hs = hdb.enabled
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health.enabled = hs
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if hs then
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health.lengthBeforeFade = hdb.lengthBeforeFade
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health.fadeOutTime = hdb.fadeOutTime
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health:Show()
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else
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health:Hide()
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end
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end
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if self.Power then
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local power = self.Power
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local pdb = db.power
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ps = pdb.enabled
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power.enabled = ps
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if ps then
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power.lengthBeforeFade = pdb.lengthBeforeFade
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power.fadeOutTime = pdb.fadeOutTime
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power:Show()
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else
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power:Hide()
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end
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end
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return hs, ps
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end
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local function Enable(self)
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local element = self and self.Cutaway
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if element then
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checkElvUI()
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if element.Health and element.Health:IsObjectType("Texture") and not element.Health:GetTexture() then
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element.Health:SetTexture([[Interface\TargetingFrame\UI-StatusBar]])
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end
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if element.Power and element.Power:IsObjectType("Texture") and not element.Power:GetTexture() then
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element.Power:SetTexture([[Interface\TargetingFrame\UI-StatusBar]])
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end
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if not element.defaultsSet then
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UpdateConfigurationValues(element, defaults)
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element.defaultsSet = true
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end
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if element.Health and self.Health then
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self.Health.__owner = self
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element.Health.__parentElement = self.Health
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element.Health:SetAlpha(0)
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if not element.Health.hasCutawayHook then
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if self.Health.PreUpdate then
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hooksecurefunc(self.Health, "PreUpdate", Health_PreUpdate)
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else
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self.Health.PreUpdate = Health_PreUpdate
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end
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if self.Health.PostUpdate then
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hooksecurefunc(self.Health, "PostUpdate", Health_PostUpdate)
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else
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self.Health.PostUpdate = Health_PostUpdate
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end
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hooksecurefunc(self.Health, "SetStatusBarColor", Health_PostUpdateColor)
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element.Health.hasCutawayHook = true
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end
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end
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if element.Power and self.Power then
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self.Power.__owner = self
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element.Power.__parentElement = self.Power
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element.Power:SetAlpha(0)
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if not element.Power.hasCutawayHook then
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if self.Power.PreUpdate then
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hooksecurefunc(self.Power, "PreUpdate", Power_PreUpdate)
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else
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self.Power.PreUpdate = Power_PreUpdate
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end
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if self.Power.PostUpdate then
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hooksecurefunc(self.Power, "PostUpdate", Power_PostUpdate)
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else
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self.Power.PostUpdate = Power_PostUpdate
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end
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hooksecurefunc(self.Power, "SetStatusBarColor", Power_PostUpdateColor)
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element.Power.hasCutawayHook = true
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end
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end
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if not element.UpdateConfigurationValues then
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element.UpdateConfigurationValues = UpdateConfigurationValues
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end
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return true
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end
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end
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local function disableElement(element)
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if element then
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element.enabled = false
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element:Hide()
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end
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end
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local function Disable(self)
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if self and self.Cutaway then
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disableElement(self.Cutaway.Health)
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disableElement(self.Cutaway.Power)
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end
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end
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oUF:AddElement("Cutaway", nil, Enable, Disable)
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