301 lines
9.3 KiB
Lua
301 lines
9.3 KiB
Lua
--[[
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# Element: Health Prediction Bars
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Handles the visibility and updating of incoming heals and heal/damage absorbs.
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## Widget
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HealthPrediction - A `table` containing references to sub-widgets and options.
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## Sub-Widgets
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myBar - A `StatusBar` used to represent incoming heals from the player.
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otherBar - A `StatusBar` used to represent incoming heals from others.
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absorbBar - A `StatusBar` used to represent damage absorbs.
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healAbsorbBar - A `StatusBar` used to represent heal absorbs.
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overAbsorb - A `Texture` used to signify that the amount of damage absorb is greater than the unit's missing health.
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overHealAbsorb - A `Texture` used to signify that the amount of heal absorb is greater than the unit's current health.
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## Notes
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A default texture will be applied to the StatusBar widgets if they don't have a texture set.
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A default texture will be applied to the Texture widgets if they don't have a texture or a color set.
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## Options
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.maxOverflow - The maximum amount of overflow past the end of the health bar. Set this to 1 to disable the overflow.
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Defaults to 1.05 (number)
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## Examples
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-- Position and size
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local myBar = CreateFrame('StatusBar', nil, self.Health)
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myBar:SetPoint('TOP')
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myBar:SetPoint('BOTTOM')
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myBar:SetPoint('LEFT', self.Health:GetStatusBarTexture(), 'RIGHT')
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myBar:SetWidth(200)
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local otherBar = CreateFrame('StatusBar', nil, self.Health)
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otherBar:SetPoint('TOP')
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otherBar:SetPoint('BOTTOM')
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otherBar:SetPoint('LEFT', myBar:GetStatusBarTexture(), 'RIGHT')
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otherBar:SetWidth(200)
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local absorbBar = CreateFrame('StatusBar', nil, self.Health)
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absorbBar:SetPoint('TOP')
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absorbBar:SetPoint('BOTTOM')
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absorbBar:SetPoint('LEFT', otherBar:GetStatusBarTexture(), 'RIGHT')
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absorbBar:SetWidth(200)
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local healAbsorbBar = CreateFrame('StatusBar', nil, self.Health)
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healAbsorbBar:SetPoint('TOP')
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healAbsorbBar:SetPoint('BOTTOM')
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healAbsorbBar:SetPoint('RIGHT', self.Health:GetStatusBarTexture())
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healAbsorbBar:SetWidth(200)
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healAbsorbBar:SetReverseFill(true)
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local overAbsorb = self.Health:CreateTexture(nil, "OVERLAY")
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overAbsorb:SetPoint('TOP')
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overAbsorb:SetPoint('BOTTOM')
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overAbsorb:SetPoint('LEFT', self.Health, 'RIGHT')
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overAbsorb:SetWidth(10)
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local overHealAbsorb = self.Health:CreateTexture(nil, "OVERLAY")
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overHealAbsorb:SetPoint('TOP')
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overHealAbsorb:SetPoint('BOTTOM')
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overHealAbsorb:SetPoint('RIGHT', self.Health, 'LEFT')
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overHealAbsorb:SetWidth(10)
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-- Register with oUF
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self.HealthPrediction = {
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myBar = myBar,
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otherBar = otherBar,
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absorbBar = absorbBar,
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healAbsorbBar = healAbsorbBar,
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overAbsorb = overAbsorb,
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overHealAbsorb = overHealAbsorb,
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maxOverflow = 1.05,
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}
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--]]
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local _, ns = ...
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local oUF = ns.oUF
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local function Update(self, event, unit)
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if(self.unit ~= unit) then return end
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local element = self.HealthPrediction
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--[[ Callback: HealthPrediction:PreUpdate(unit)
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Called before the element has been updated.
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* self - the HealthPrediction element
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* unit - the unit for which the update has been triggered (string)
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--]]
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if(element.PreUpdate) then
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element:PreUpdate(unit)
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end
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local myIncomingHeal = UnitGetIncomingHeals(unit, 'player') or 0
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local allIncomingHeal = UnitGetIncomingHeals(unit) or 0
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local absorb = UnitGetTotalAbsorbs(unit) or 0
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local healAbsorb = UnitGetTotalHealAbsorbs(unit) or 0
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local health, maxHealth = UnitHealth(unit), UnitHealthMax(unit)
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local otherIncomingHeal = 0
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local hasOverHealAbsorb = false
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if(healAbsorb > allIncomingHeal) then
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healAbsorb = healAbsorb - allIncomingHeal
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allIncomingHeal = 0
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myIncomingHeal = 0
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if(health < healAbsorb) then
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hasOverHealAbsorb = true
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end
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else
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allIncomingHeal = allIncomingHeal - healAbsorb
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healAbsorb = 0
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if(health + allIncomingHeal > maxHealth * element.maxOverflow) then
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allIncomingHeal = maxHealth * element.maxOverflow - health
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end
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if(allIncomingHeal < myIncomingHeal) then
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myIncomingHeal = allIncomingHeal
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else
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otherIncomingHeal = allIncomingHeal - myIncomingHeal
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end
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end
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local hasOverAbsorb = false
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if(health + allIncomingHeal + absorb >= maxHealth) and (absorb > 0) then
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hasOverAbsorb = true
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end
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if(element.myBar) then
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element.myBar:SetMinMaxValues(0, maxHealth)
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element.myBar:SetValue(myIncomingHeal)
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element.myBar:Show()
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end
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if(element.otherBar) then
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element.otherBar:SetMinMaxValues(0, maxHealth)
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element.otherBar:SetValue(otherIncomingHeal)
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element.otherBar:Show()
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end
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if(element.absorbBar) then
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element.absorbBar:SetMinMaxValues(0, maxHealth)
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element.absorbBar:SetValue(absorb)
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element.absorbBar:Show()
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end
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if(element.healAbsorbBar) then
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element.healAbsorbBar:SetMinMaxValues(0, maxHealth)
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element.healAbsorbBar:SetValue(healAbsorb)
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element.healAbsorbBar:Show()
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end
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if(element.overAbsorb) then
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if(hasOverAbsorb) then
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element.overAbsorb:Show()
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else
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element.overAbsorb:Hide()
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end
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end
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if(element.overHealAbsorb) then
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if(hasOverHealAbsorb) then
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element.overHealAbsorb:Show()
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else
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element.overHealAbsorb:Hide()
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end
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end
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--[[ Callback: HealthPrediction:PostUpdate(unit, myIncomingHeal, otherIncomingHeal, absorb, healAbsorb, hasOverAbsorb, hasOverHealAbsorb)
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Called after the element has been updated.
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* self - the HealthPrediction element
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* unit - the unit for which the update has been triggered (string)
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* myIncomingHeal - the amount of incoming healing done by the player (number)
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* otherIncomingHeal - the amount of incoming healing done by others (number)
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* absorb - the amount of damage the unit can absorb without losing health (number)
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* healAbsorb - the amount of healing the unit can absorb without gaining health (number)
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* hasOverAbsorb - indicates if the amount of damage absorb is higher than the unit's missing health (boolean)
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* hasOverHealAbsorb - indicates if the amount of heal absorb is higher than the unit's current health (boolean)
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--]]
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if(element.PostUpdate) then
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return element:PostUpdate(unit, myIncomingHeal, otherIncomingHeal, absorb, healAbsorb, hasOverAbsorb, hasOverHealAbsorb, health, maxHealth)
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end
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end
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local function Path(self, ...)
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--[[ Override: HealthPrediction.Override(self, event, unit)
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Used to completely override the internal update function.
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* self - the parent object
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* event - the event triggering the update (string)
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* unit - the unit accompanying the event
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--]]
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return (self.HealthPrediction.Override or Update) (self, ...)
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end
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local function ForceUpdate(element)
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return Path(element.__owner, 'ForceUpdate', element.__owner.unit)
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end
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local function Enable(self)
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local element = self.HealthPrediction
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if(element) then
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element.__owner = self
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element.ForceUpdate = ForceUpdate
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self:RegisterEvent('UNIT_HEALTH', Path)
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self:RegisterEvent('UNIT_MAXHEALTH', Path)
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self:RegisterEvent('UNIT_HEAL_PREDICTION', Path)
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self:RegisterEvent('UNIT_ABSORB_AMOUNT_CHANGED', Path)
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self:RegisterEvent('UNIT_HEAL_ABSORB_AMOUNT_CHANGED', Path)
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if(not element.maxOverflow) then
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element.maxOverflow = 1.05
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end
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if(element.myBar) then
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if(element.myBar:IsObjectType('StatusBar') and not element.myBar:GetStatusBarTexture()) then
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element.myBar:SetStatusBarTexture([[Interface\TargetingFrame\UI-StatusBar]])
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end
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end
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if(element.otherBar) then
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if(element.otherBar:IsObjectType('StatusBar') and not element.otherBar:GetStatusBarTexture()) then
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element.otherBar:SetStatusBarTexture([[Interface\TargetingFrame\UI-StatusBar]])
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end
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end
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if(element.absorbBar) then
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if(element.absorbBar:IsObjectType('StatusBar') and not element.absorbBar:GetStatusBarTexture()) then
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element.absorbBar:SetStatusBarTexture([[Interface\TargetingFrame\UI-StatusBar]])
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end
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end
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if(element.healAbsorbBar) then
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if(element.healAbsorbBar:IsObjectType('StatusBar') and not element.healAbsorbBar:GetStatusBarTexture()) then
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element.healAbsorbBar:SetStatusBarTexture([[Interface\TargetingFrame\UI-StatusBar]])
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end
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end
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if(element.overAbsorb) then
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if(element.overAbsorb:IsObjectType('Texture') and not element.overAbsorb:GetTexture()) then
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element.overAbsorb:SetTexture([[Interface\RaidFrame\Shield-Overshield]])
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element.overAbsorb:SetBlendMode('ADD')
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end
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end
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if(element.overHealAbsorb) then
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if(element.overHealAbsorb:IsObjectType('Texture') and not element.overHealAbsorb:GetTexture()) then
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element.overHealAbsorb:SetTexture([[Interface\RaidFrame\Absorb-Overabsorb]])
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element.overHealAbsorb:SetBlendMode('ADD')
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end
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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 Disable(self)
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local element = self.HealthPrediction
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if(element) then
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if(element.myBar) then
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element.myBar:Hide()
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end
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if(element.otherBar) then
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element.otherBar:Hide()
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end
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if(element.absorbBar) then
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element.absorbBar:Hide()
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end
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if(element.healAbsorbBar) then
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element.healAbsorbBar:Hide()
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end
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if(element.overAbsorb) then
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element.overAbsorb:Hide()
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end
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if(element.overHealAbsorb) then
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element.overHealAbsorb:Hide()
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end
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self:UnregisterEvent('UNIT_HEALTH', Path)
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self:UnregisterEvent('UNIT_MAXHEALTH', Path)
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self:UnregisterEvent('UNIT_HEAL_PREDICTION', Path)
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self:UnregisterEvent('UNIT_ABSORB_AMOUNT_CHANGED', Path)
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self:UnregisterEvent('UNIT_HEAL_ABSORB_AMOUNT_CHANGED', Path)
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end
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end
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oUF:AddElement('HealthPrediction', Path, Enable, Disable)
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