- removed most of the rest of the garbage that was being generated during combat or when changing targets

- reduced cpu usage by 33%-50% across the board (and more in some cases) by changing how updates are registered and how often they run. now the 'update period' slider actually matters. it defaults to 0.033 meaning that frames update about 30 times a second instead of every frame
- fixed the "always" display mode for cooldown bars to respect alpha settings (ooc/with target/in combat/etc.)

IceBarElement.lua

@@ -15,6 +15,7 @@ IceBarElement.prototype.DesiredScale = 1
 IceBarElement.prototype.CurrScale = 1
 IceBarElement.prototype.Markers = {}
 IceBarElement.prototype.IsBarElement = true -- cheating to avoid crawling up the 'super' references looking for this class. see IceCore.lua
+IceBarElement.prototype.bTreatEmptyAsFull = false
 
 local lastMarkerPosConfig = 50
 local lastMarkerColorConfig = {r=1, b=0, g=0, a=1}
@@ -34,6 +35,10 @@ end
 function IceBarElement.prototype:Enable()
 	IceBarElement.super.prototype.Enable(self)
 
+	-- never register the OnUpdate for the mirror bar since it's handled internally
+	-- in addition, do not register OnUpdate if predictedPower is set and this is the player mana or target mana bar
+	self:ConditionalSetupUpdate()
+
 	if IceHUD.IceCore:ShouldUseDogTags() then
 		DogTag = LibStub("LibDogTag-3.0", true)
 		if DogTag then
@@ -71,6 +76,7 @@ function IceBarElement.prototype:Enable()
 		if self.moduleSettings.textVisible["lower"] then
 			self.frame.bottomLowerText:Hide()
 		end
+		self:OnHide()
 	end)
 	self.frame:SetScript("OnShow", function()
 		if self.moduleSettings.textVisible["upper"] then
@@ -79,13 +85,21 @@ function IceBarElement.prototype:Enable()
 		if self.moduleSettings.textVisible["lower"] then
 			self.frame.bottomLowerText:Show()
 		end
+		self:OnShow()
 	end)
 end
 
+function IceBarElement.prototype:OnHide()
+	IceHUD.IceCore:RequestUpdates(self, nil)
+end
+
+function IceBarElement.prototype:OnShow()
+end
+
 function IceBarElement.prototype:Disable(core)
 	IceBarElement.super.prototype.Disable(self, core)
 
-	self.frame:SetScript("OnUpdate", nil)
+	IceHUD.IceCore:RequestUpdates(self, nil)
 	self.frame:SetScript("OnHide", nil)
 	self.frame:SetScript("OnShow", nil)
 end
@@ -823,20 +837,29 @@ function IceBarElement.prototype:CreateFrame()
 	end
 
 	self.masterFrame:SetScale(self.moduleSettings.scale)
-	-- never register the OnUpdate for the mirror bar since it's handled internally
-	-- in addition, do not register OnUpdate if predictedPower is set and this is the player mana or target mana bar
-	if not string.find(self.elementName, "MirrorBar")
-		and ((IceHUD.WowVer < 30000 or not GetCVarBool("predictedPower")) or (not string.find(self.elementName, "PlayerMana")))
-		and not self.moduleSettings.isCustomBar and self:RegisterOnUpdate() then
-		self.frame:SetScript("OnUpdate", function() self:MyOnUpdate() end)
-	end
 
 	if self.moduleSettings.rotateBar then
 		self:RotateHorizontal()
 	end
 end
 
-function IceBarElement.prototype:RegisterOnUpdate()
+function IceBarElement.prototype:ConditionalSetupUpdate()
+	if not self.MyOnUpdateFunc then
+		self.MyOnUpdateFunc = function() self:MyOnUpdate() end
+	end
+
+	if IceHUD.IceCore:IsUpdateSubscribed(self) then
+		return
+	end
+
+	if not string.find(self.elementName, "MirrorBar")
+		and ((IceHUD.WowVer < 30000 or not GetCVarBool("predictedPower")) or (not string.find(self.elementName, "PlayerMana")))
+		and self:ShouldRegisterOnUpdate() then
+		IceHUD.IceCore:RequestUpdates(self, self.MyOnUpdateFunc)
+	end
+end
+
+function IceBarElement.prototype:ShouldRegisterOnUpdate()
 	return true
 end
 
@@ -1038,6 +1061,14 @@ function IceBarElement.prototype:SetScale(inScale, force)
 			self.barFrame.bar:Show()
 		end
 	end
+
+	if not self:IsFull(self.CurrScale) or not self:IsFull(inScale) then
+		self:ConditionalSetupUpdate()
+	else
+		if self.CurrScale == self.DesiredScale then
+			IceHUD.IceCore:RequestUpdates(self, nil)
+		end
+	end
 end
 
 
@@ -1046,19 +1077,21 @@ function IceBarElement.prototype:LerpScale(scale)
 		return scale
 	end
 
+	local now = GetTime()
+
 	if self.CurrLerpTime < self.moduleSettings.desiredLerpTime then
-		self.CurrLerpTime = self.CurrLerpTime + (1 / GetFramerate());
+		self.CurrLerpTime = self.CurrLerpTime + (now - (self.lastLerpTime or now))
 	end
 
+	self.lastLerpTime = GetTime()
+
 	if self.CurrLerpTime > self.moduleSettings.desiredLerpTime then
 		self.CurrLerpTime = self.moduleSettings.desiredLerpTime
+	elseif self.CurrLerpTime < self.moduleSettings.desiredLerpTime then
+		return self.LastScale + ((self.DesiredScale - self.LastScale) * (self.CurrLerpTime / self.moduleSettings.desiredLerpTime))
 	end
 
-	if self.CurrLerpTime < self.moduleSettings.desiredLerpTime then
+	return scale
-		return self.LastScale + ((self.DesiredScale - self.LastScale) * (self.CurrLerpTime / self.moduleSettings.desiredLerpTime))
-	else
-		return scale
-	end
 end
 
 
@@ -1102,6 +1135,7 @@ function IceBarElement.prototype:UpdateBar(scale, color, alpha)
 	if self.DesiredScale ~= scale then
 		self.DesiredScale = scale
 		self.CurrLerpTime = 0
+		self.lastLerpTime = GetTime()
 		self.LastScale = self.CurrScale
 	end
 
@@ -1124,7 +1158,19 @@ end
 
 
 function IceBarElement.prototype:UseTargetAlpha(scale)
-	return (scale and (scale < 1))
+	return not self:IsFull(scale)
+end
+
+function IceBarElement.prototype:IsFull(scale)
+	if self.reverse then
+		scale = 1 - scale
+	end
+
+	if not self.bTreatEmptyAsFull then
+		return scale and scale == 1
+	else
+		return scale and scale == 0
+	end
 end
 
 
@@ -1228,9 +1274,6 @@ function IceBarElement.prototype:Update()
 end
 
 function IceBarElement.prototype:MyOnUpdate()
-	if not self:IsVisible() then
-		return
-	end
 	self:SetScale(self.DesiredScale)
 end
 
@@ -1386,3 +1429,13 @@ function IceBarElement.prototype:LoadMarkers()
 		self:CreateMarker(i)
 	end
 end
+
+function IceBarElement.prototype:Show(bShouldShow)
+	if IceBarElement.super.prototype.Show(self, bShouldShow) then
+		if self.bIsVisible then
+			self:ConditionalSetupUpdate()
+		else
+			IceHUD.IceCore:RequestUpdates(self, nil)
+		end
+	end
+end

IceCastBar.lua

@@ -245,7 +245,7 @@ end
 
 
 -- OnUpdate handler
-function IceCastBar.prototype:OnUpdate()
+function IceCastBar.prototype:MyOnUpdate()
 	-- safety catch
 	if (self.action == IceCastBar.Actions.None) then
 		IceHUD:Debug("Stopping action ", self.action)
@@ -370,7 +370,7 @@ function IceCastBar.prototype:StartBar(action, message)
 	end
 
 	self:Show(true)
-	self.frame:SetScript("OnUpdate", function() self:OnUpdate() end)
+	self:ConditionalSetupUpdate()
 end
 
 
@@ -380,16 +380,6 @@ function IceCastBar.prototype:StopBar()
 	self.actionDuration = nil
 
 	self:Show(false)
-	self.frame:SetScript("OnUpdate", nil)
-end
-
--- make sure that our custom OnUpdate is restored whenever a Redraw happens
-function IceCastBar.prototype:Redraw()
-	IceCastBar.super.prototype.Redraw(self)
-
-	if self.action ~= IceCastBar.Actions.None then
-		self.frame:SetScript("OnUpdate", function() self:OnUpdate() end)
-	end
 end
 
 function IceCastBar.prototype:GetShortRank(rank)

IceCore.lua

@@ -17,6 +17,8 @@ function IceCore_CreateClass(parent)
 	return class
 end
 
+local DogTag = LibStub("LibDogTag-3.0", true)
+
 IceCore = IceCore_CreateClass()
 
 IceCore.Side = { Left = "LEFT", Right = "RIGHT" }
@@ -73,7 +75,7 @@ function IceCore.prototype:SetupDefaults()
 
 			bShouldUseDogTags = true,
 
-			updatePeriod = 0.1,
+			updatePeriod = 0.033,
 			minimap = {},
 		},
 		global = {
@@ -108,6 +110,15 @@ StaticPopupDialogs["ICEHUD_CONVERTED_TO_ACE3"] =
 	hideOnEscape = 0,
 }
 
+StaticPopupDialogs["ICEHUD_UPDATE_PERIOD_MATTERS"] =
+{
+	text = L["Since the last time you updated IceHUD, many significant CPU and memory optimizations have been made. If bar animation looks jumpy to you, open the /icehud configuration page and lower the 'Update Period' slider. This will cause higher CPU usage but will look nicer. Enjoy IceHUD!"],
+	button1 = OKAY,
+	timeout = 0,
+	whileDead = 1,
+	hideOnEscape = 0,
+}
+
 function IceCore.prototype:CheckDisplayUpdateMessage()
 	local thisVersion
 --[===[@non-debug@
@@ -120,6 +131,14 @@ function IceCore.prototype:CheckDisplayUpdateMessage()
 		if self.accountSettings.lastRunVersion < 549 then
 			StaticPopup_Show("ICEHUD_CONVERTED_TO_ACE3")
 		end
+		if self.accountSettings.lastRunVersion < 707 and self.accountSettings.lastRunVersion > 0 then
+			-- update from the old default that may have been saved with the user's settings
+			if self.settings.updatePeriod == 0.1 then
+				self.settings.updatePeriod = 0.033
+			end
+
+			StaticPopup_Show("ICEHUD_UPDATE_PERIOD_MATTERS")
+		end
 		self.accountSettings.lastRunVersion = thisVersion
 	end
 end
@@ -185,7 +204,7 @@ function IceCore.prototype:Enable(userToggle)
 	end
 
 	if self.settings.updatePeriod == nil then
-		self.settings.updatePeriod = 0.1
+		self.settings.updatePeriod = 0.033
 	end
 
 	-- make sure the module options are re-generated. if we switched profiles, we don't want the old elements hanging around
@@ -359,24 +378,23 @@ end
 
 
 function IceCore.prototype:GetColorOptions()
-	assert(table.getn(IceHUD.IceCore.elements) > 0, "Unable to get color options, no elements found!")
-
 	local options = {}
 
-	for k, v in pairs(self.elements[1]:GetColors()) do
+	if #self.elements > 0 then
-		local kk, vv = k, v
+		for k, v in pairs(self.elements[1]:GetColors()) do
-		options[k] =  {
+			options[k] =  {
-			type = 'color',
+				type = 'color',
-			desc = k,
+				desc = k,
-			name = k,
+				name = k,
-			get = function()
+				get = function()
-				return IceHUD.IceCore:GetColor(kk)
+					return IceHUD.IceCore:GetColor(k)
-			end,
+				end,
-			set = function(info, r, g, b)
+				set = function(info, r, g, b)
-				local color = k
+					local color = k
-				IceHUD.IceCore:SetColor(kk, r, g, b)
+					IceHUD.IceCore:SetColor(k, r, g, b)
-			end
+				end
-		}
+			}
+		end
 	end
 
 	return options
@@ -658,7 +676,7 @@ function IceCore.prototype:ConfigModeToggle(bWantConfig)
 end
 
 function IceCore.prototype:ShouldUseDogTags()
-	return LibStub("LibDogTag-3.0", true) and self.settings.bShouldUseDogTags
+	return DogTag and self.settings.bShouldUseDogTags
 end
 
 function IceCore.prototype:SetShouldUseDogTags(should)
@@ -678,22 +696,18 @@ function IceCore.prototype:HandleUpdates()
 	local update_period = self:UpdatePeriod()
 	local elapsed = 1 / GetFramerate()
 	self.update_elapsed = self.update_elapsed + elapsed
-	if (self.update_elapsed > update_period) then
+	if (self.update_elapsed >= update_period) then
-		for frame, func in pairs(self.updatees)
+		for module, func in pairs(self.updatees) do
-		do
 			func()
 		end
-		if (elapsed > update_period) then
+
-			self.update_elapsed = 0
+		self.update_elapsed = self.update_elapsed - update_period
-		else
-			self.update_elapsed = self.update_elapsed - update_period
-		end
 	end
 end
 
-function IceCore.prototype:RequestUpdates(frame, func)
+function IceCore.prototype:RequestUpdates(module, func)
-	if self.updatees[frame] ~= func then
+	if self.updatees[module] ~= func then
-		self.updatees[frame] = func
+		self.updatees[module] = func
 	end
 
 	local count = 0
@@ -704,12 +718,18 @@ function IceCore.prototype:RequestUpdates(frame, func)
 	if (count == 0) then
 		self.IceHUDFrame:SetScript("OnUpdate", nil)
 	else
-		self.IceHUDFrame:SetScript("OnUpdate", function() self:HandleUpdates() end)
+		if not self.UpdateFunc then
+			self.UpdateFunc = function() self:HandleUpdates() end
+		end
+
+		if self.IceHUDFrame:GetScript("OnUpdate") ~= self.UpdateFunc then
+			self.IceHUDFrame:SetScript("OnUpdate", self.UpdateFunc)
+		end
 	end
 end
 
-function IceCore.prototype:IsUpdateSubscribed(frame)
+function IceCore.prototype:IsUpdateSubscribed(module)
-	return self.updatees[frame] ~= nil
+	return self.updatees[module] ~= nil
 end
 
 function IceCore.prototype:EmptyUpdates()

IceElement.lua

@@ -407,7 +407,7 @@ end
 
 function IceElement.prototype:Show(bShouldShow)
 	if self.bIsVisible == bShouldShow then
-		return
+		return nil
 	end
 
 	self.bIsVisible = bShouldShow
@@ -419,6 +419,8 @@ function IceElement.prototype:Show(bShouldShow)
 		self.masterFrame:Show()
 		self.frame:Show()
 	end
+
+	return true
 end
 
 

IceHUD.lua

@@ -651,9 +651,9 @@ Expand "|cffffdc42Module Settings|r", expand PlayerInfo (or TargetInfo for targe
 			set = function(info, v)
 				IceHUD.IceCore:SetUpdatePeriod(v)
 			end,
-			min = 0.01,
+			min = 0,
-			max = 1.0,
+			max = 1,
-			step = 0.01,
+			step = 0.001,
 			order = 97
 		},
 

IceUnitBar.lua

@@ -285,31 +285,39 @@ function IceUnitBar.prototype:UpdateBar(scale, color, alpha)
 		return
 	end
 
-	self.flashFrame.flash:SetVertexColor(self:GetColor(color))
-
 	if (self.moduleSettings.lowThreshold > 0 and
 		self.moduleSettings.lowThresholdFlash and
 		self.moduleSettings.lowThreshold >= scale and self.alive and
 		not self.noFlash) then
-			self.flashFrame:SetScript("OnUpdate", function() self:OnFlashUpdate() end)
+			self.bUpdateFlash = true
+			self.flashFrame.flash:SetVertexColor(self:GetColor(color))
 	else
-		self.flashFrame:SetScript("OnUpdate", nil)
+		self.bUpdateFlash = nil
 		self.flashFrame:SetAlpha(0)
 	end
 end
 
 
-function IceUnitBar.prototype:OnFlashUpdate()
+function IceUnitBar.prototype:MyOnUpdate()
-	local time = GetTime()
+	IceUnitBar.super.prototype.MyOnUpdate(self)
-	local decimals = time - math.floor(time)
 
-	if (decimals > 0.5) then
+	self:ConditionalUpdateFlash()
-		decimals = 1 - decimals
+end
+
+
+function IceUnitBar.prototype:ConditionalUpdateFlash()
+	if self.bUpdateFlash then
+		local time = GetTime()
+		local decimals = time - math.floor(time)
+
+		if (decimals > 0.5) then
+			decimals = 1 - decimals
+		end
+
+		decimals = decimals*1.1 -- add more dynamic to the color change
+
+		self.flashFrame:SetAlpha(decimals)
 	end
-
-	decimals = decimals*1.1 -- add more dynamic to the color change
-
-	self.flashFrame:SetAlpha(decimals)
 end
 
 

modules/ComboPointsBar.lua

@@ -6,6 +6,8 @@ function ComboPointsBar.prototype:init()
 
 	self:SetDefaultColor("ComboPointsBarMin", 1, 1, 0)
 	self:SetDefaultColor("ComboPointsBarMax", 0, 1, 0)
+
+	self.bTreatEmptyAsFull = true
 end
 
 function ComboPointsBar.prototype:GetOptions()
@@ -37,6 +39,7 @@ function ComboPointsBar.prototype:GetDefaultSettings()
 	defaults.offset = 8
 	defaults.enabled = false
 	defaults.alwaysDisplay = false
+	defaults.desiredLerpTime = 0.05
 	return defaults
 end
 

modules/CustomBar.lua

@@ -50,11 +50,15 @@ end
 
 function IceCustomBar.prototype:ConditionalSubscribe()
 	if self:ShouldAlwaysSubscribe() then
-		if not IceHUD.IceCore:IsUpdateSubscribed(self.frame) then
+		if not IceHUD.IceCore:IsUpdateSubscribed(self) then
-			IceHUD.IceCore:RequestUpdates(self.frame, function() self:UpdateCustomBar() end)
+			if not self.CustomBarUpdateFunc then
+				self.CustomBarUpdateFunc = function() self:UpdateCustomBar() end
+			end
+
+			IceHUD.IceCore:RequestUpdates(self, self.CustomBarUpdateFunc)
 		end
 	else
-		IceHUD.IceCore:RequestUpdates(self.frame, nil)
+		IceHUD.IceCore:RequestUpdates(self, nil)
 	end
 end
 
@@ -69,7 +73,7 @@ function IceCustomBar.prototype:TargetChanged()
 end
 
 function IceCustomBar.prototype:Disable(core)
-	IceHUD.IceCore:RequestUpdates(self.frame, nil)
+	IceHUD.IceCore:RequestUpdates(self, nil)
 
 	IceCustomBar.super.prototype.Disable(self, core)
 end
@@ -571,8 +575,12 @@ function IceCustomBar.prototype:UpdateCustomBar(unit, fromUpdate)
 	end
 
 	if self.auraEndTime ~= nil and (self.auraEndTime == 0 or self.auraEndTime >= now) then
-		if not self:ShouldAlwaysSubscribe() and not fromUpdate and not IceHUD.IceCore:IsUpdateSubscribed(self.frame) then
+		if not self:ShouldAlwaysSubscribe() and not fromUpdate and not IceHUD.IceCore:IsUpdateSubscribed(self) then
-			IceHUD.IceCore:RequestUpdates(self.frame, function() self:UpdateCustomBar(self.unit, true) end)
+			if not self.UpdateCustomBarFunc then
+				self.UpdateCustomBarFunc = function() self:UpdateCustomBar(self.unit, true) end
+			end
+
+			IceHUD.IceCore:RequestUpdates(self, self.UpdateCustomBarFunc)
 		end
 
 		self:Show(true)
@@ -590,7 +598,7 @@ function IceCustomBar.prototype:UpdateCustomBar(unit, fromUpdate)
 		self:UpdateBar(0, "undef")
 		self:Show(false)
 		if not self:ShouldAlwaysSubscribe() then
-			IceHUD.IceCore:RequestUpdates(self.frame, nil)
+			IceHUD.IceCore:RequestUpdates(self, nil)
 		end
 	end
 

modules/CustomCDBar.lua

@@ -1,5 +1,5 @@
 local L = LibStub("AceLocale-3.0"):GetLocale("IceHUD", false)
-IceCustomCDBar = IceCore_CreateClass(IceUnitBar)
+IceCustomCDBar = IceCore_CreateClass(IceBarElement)
 
 local IceHUD = _G.IceHUD
 
@@ -18,7 +18,7 @@ table.insert(brokenSpellsNameToId, {"Holy Word: Aspire",88682})
 
 -- Constructor --
 function IceCustomCDBar.prototype:init()
-	IceCustomCDBar.super.prototype.init(self, "MyCustomCDBar", "player")
+	IceCustomCDBar.super.prototype.init(self, "MyCustomCDBar")
 end
 
 -- 'Public' methods -----------------------------------------------------------
@@ -59,7 +59,7 @@ end
 
 
 function IceCustomCDBar.prototype:Disable(core)
-	IceHUD.IceCore:RequestUpdates(self.frame, nil)
+	IceHUD.IceCore:RequestUpdates(self, nil)
 
 	IceCustomCDBar.super.prototype.Disable(self, core)
 end
@@ -79,7 +79,6 @@ function IceCustomCDBar.prototype:GetDefaultSettings()
 	settings["lockLowerFontAlpha"] = false
 	settings["lowerText"] = ""
 	settings["lowerTextVisible"] = false
-	settings["isCustomBar"] = false
 	settings["cooldownToTrack"] = ""
 	settings["barColor"] = {r=1, g=0, b=0, a=1}
 	settings["displayMode"] = "When cooling down"
@@ -447,11 +446,15 @@ function IceCustomCDBar.prototype:EnableUpdates(enable_update)
 	end
 
 	if enable_update then
-		if not IceHUD.IceCore:IsUpdateSubscribed(self.frame) then
+		if not IceHUD.IceCore:IsUpdateSubscribed(self) then
-			IceHUD.IceCore:RequestUpdates(self.frame, function() self:UpdateCustomBar(true) end)
+			if not self.CustomUpdateFunc then
+				self.CustomUpdateFunc = function() self:UpdateCustomBar(true) end
+			end
+
+			IceHUD.IceCore:RequestUpdates(self, self.CustomUpdateFunc)
 		end
 	else
-		IceHUD.IceCore:RequestUpdates(self.frame, nil)
+		IceHUD.IceCore:RequestUpdates(self, nil)
 	end
 end
 
@@ -533,6 +536,8 @@ function IceCustomCDBar.prototype:UpdateCustomBar(fromUpdate)
 		self:SetBottomText1(self.moduleSettings.upperText)
 	end
 
+	self:UpdateAlpha()
+
 	self.barFrame.bar:SetVertexColor(self:GetBarColor())
 
 	self.coolingDown = remaining ~= nil and remaining > 0
@@ -548,7 +553,7 @@ function IceCustomCDBar.prototype:TargetChanged()
 	IceCustomCDBar.super.prototype.TargetChanged(self)
 
 	-- Target changing only affects us if we want to show the bar as soon as it is ready.
-	if (self.moduleSettings.displayMode == "When ready") then
+	if (self.moduleSettings.displayMode == "When ready" or self.moduleSettings.displayMode == "Always") then
 		self:UpdateCustomBar()
 	end
 end
@@ -584,11 +589,13 @@ end
 
 function IceCustomCDBar.prototype:Show(bShouldShow, bForceHide)
 	if self.moduleSettings.enabled and not bForceHide then
-		if (self.moduleSettings.displayMode == "Always") then
+		if self.moduleSettings.displayMode == "Always" then
-			if not self.bIsVisible then
+			if self.target then
 				IceCustomCDBar.super.prototype.Show(self, true)
+			else
+				IceCustomCDBar.super.prototype.Show(self, bShouldShow)
 			end
-		elseif (self.moduleSettings.displayMode == "When ready") then
+		elseif self.moduleSettings.displayMode == "When ready" then
 			if not self.coolingDown and self:IsReady() then
 				IceCustomCDBar.super.prototype.Show(self, true)
 			else
@@ -603,9 +610,10 @@ function IceCustomCDBar.prototype:Show(bShouldShow, bForceHide)
 end
 
 function IceCustomCDBar.prototype:UseTargetAlpha(scale)
-	if self.moduleSettings.displayMode == "When ready" and scale == 0 then
+	if (self.moduleSettings.displayMode == "When ready" or self.moduleSettings.displayMode == "Always")
+		and scale == 0 then
 		return false
 	end
 
-	return true
+	return IceCustomCDBar.super.prototype:UseTargetAlpha(self, scale)
 end

modules/CustomHealth.lua

@@ -1,6 +1,5 @@
 local L = LibStub("AceLocale-3.0"):GetLocale("IceHUD", false)
 IceCustomHealth = IceCore_CreateClass(IceTargetHealth)
-IceCustomHealth.prototype.scheduledEvent = nil
 
 -- Constructor --
 function IceCustomHealth.prototype:init()
@@ -113,21 +112,19 @@ end
 
 
 function IceCustomHealth.prototype:Enable(core)
-	self.registerEvents = false
+	--self.registerEvents = false
 	IceCustomHealth.super.prototype.Enable(self, core)
 
 	self:SetUnit(self.moduleSettings.unitToTrack)
 	self:CreateFrame()
-
-	self.scheduledEvent = self:ScheduleRepeatingTimer("Update", IceHUD.IceCore:UpdatePeriod())
 end
 
-function IceCustomHealth.prototype:Disable(core)
+function IceCustomHealth.prototype:MyOnUpdate()
-	IceCustomHealth.super.prototype.Disable(self, core)
+	IceCustomHealth.super.prototype.MyOnUpdate(self)
 
-	UnregisterUnitWatch(self.frame)
+	if UnitExists(self.unit) then
-
+		self:Update()
-	self:CancelTimer(self.scheduledEvent, true)
+	end
 end
 
 function IceCustomHealth.prototype:Update(unit)
@@ -153,12 +150,8 @@ function IceCustomHealth.prototype:Update(unit)
 		self.color = "Tapped"
 	end
 
-	if not self:IsVisible() then
-		RegisterUnitWatch(self.frame)
-	end
-
 	--self.determineColor = false
-	IceCustomHealth.super.prototype.Update(self, unit)
+	IceCustomHealth.super.prototype.Update(self, self.unit)
 end
 
 function IceCustomHealth.prototype:SetUnit(unit)
@@ -168,3 +161,7 @@ function IceCustomHealth.prototype:SetUnit(unit)
 	end
 	self:RegisterFontStrings()
 end
+
+function IceCustomHealth.prototype:OnShow()
+	self:Update(self.unit)
+end

modules/EclipseBar.lua

@@ -58,8 +58,6 @@ function EclipseBar.prototype:Enable(core)
 	self:RegisterEvent("UNIT_AURA", "UpdateEclipseBuffs")
 	self:RegisterEvent("ECLIPSE_DIRECTION_CHANGE", "UpdateEclipseDirection")
 
-	self.frame:SetScript("OnUpdate", function() self:Update() end)
-
 	self:UpdateEclipseDirection(nil, GetEclipseDirection() == "sun", GetEclipseDirection() == "none")
 	self:UpdateEclipseBuffs()
 	self:UpdateShown()
@@ -97,7 +95,7 @@ function EclipseBar.prototype:CreateFrame()
 	self:UpdateAlpha()
 end
 
-function EclipseBar.prototype:RegisterOnUpdate()
+function EclipseBar.prototype:ShouldRegisterOnUpdate()
 	return false
 end
 
@@ -146,7 +144,7 @@ function EclipseBar.prototype:CreateSolarBar()
 end
 
 function EclipseBar.prototype:UpdateShown()
-	local form  = GetShapeshiftFormID();
+	local form  = GetShapeshiftFormID()
 
 	if form == MOONKIN_FORM or not form then
 		if GetPrimaryTalentTree() == 1 then
@@ -206,8 +204,8 @@ function EclipseBar.prototype:UpdateEclipsePower()
 	self:PositionMarker(1, pos)
 end
 
-function EclipseBar.prototype:Update()
+function EclipseBar.prototype:MyOnUpdate()
-	EclipseBar.super.prototype.Update(self)
+	self:Update()
 
 	self:UpdateEclipsePower()
 	self:UpdateBar(0.5, self.barUpdateColor, 1)

modules/PetMana.lua

@@ -102,13 +102,17 @@ end
 
 function PetMana.prototype:SetupOnUpdate(enable)
 	if enable then
-		self.frame:SetScript("OnUpdate", function() self:Update(self.unit) end)
+		if not self.CustomOnUpdate then
+			self.CustomOnUpdate = function() self:Update(self.unit) end
+		end
+
+		IceHUD.IceCore:RequestUpdates(self, self.CustomOnUpdate)
 	else
 		-- make sure the animation has a chance to finish filling up the bar before we cut it off completely
 		if self.CurrScale ~= self.DesiredScale then
-			self.frame:SetScript("OnUpdate", function() self:MyOnUpdate() end)
+			IceHUD.IceCore:RequestUpdates(self, self.MyOnUpdateFunc)
 		else
-			self.frame:SetScript("OnUpdate", nil)
+			IceHUD.IceCore:RequestUpdates(self, nil)
 		end
 	end
 end

modules/PlayerInfo.lua

@@ -54,8 +54,10 @@ end
 function PlayerInfo.prototype:CreateFrame(redraw)
 	PlayerInfo.super.prototype.CreateFrame(self, redraw)
 
-	self.frame.menu = function()
+	if not self.frame.menu then
-		ToggleDropDownMenu(1, nil, PlayerFrameDropDown, "cursor")
+		self.frame.menu = function()
+			ToggleDropDownMenu(1, nil, PlayerFrameDropDown, "cursor")
+		end
 	end
 end
 
@@ -68,26 +70,28 @@ StaticPopupDialogs["ICEHUD_BUFF_DISMISS_UNAVAILABLE"] =
 	hideOnEscape = 0,
 }
 
+local function OnBuffMouseUp(frame, button)
+	if IceHUD.WowVer >= 40000 then
+		StaticPopup_Show("ICEHUD_BUFF_DISMISS_UNAVAILABLE")
+	else
+--[[		if( button == "RightButton" ) then
+			if buffs[i].type == "mh" then
+				CancelItemTempEnchantment(1)
+			elseif buffs[i].type == "oh" then
+				CancelItemTempEnchantment(2)
+			else
+				CancelUnitBuff("player", i)
+			end
+		end]]
+	end
+end
+
 function PlayerInfo.prototype:CreateIconFrames(parent, direction, buffs, type)
 	local buffs = PlayerInfo.super.prototype.CreateIconFrames(self, parent, direction, buffs, type)
 
 	for i = 1, IceCore.BuffLimit do
 		if (self.moduleSettings.mouseBuff) then
-			buffs[i]:SetScript("OnMouseUp", function( self, button)
+			buffs[i]:SetScript("OnMouseUp", OnBuffMouseUp)
-				if IceHUD.WowVer >= 40000 then
-					StaticPopup_Show("ICEHUD_BUFF_DISMISS_UNAVAILABLE")
-				else
-					if( button == "RightButton" ) then
-						if buffs[i].type == "mh" then
-							CancelItemTempEnchantment(1)
-						elseif buffs[i].type == "oh" then
-							CancelItemTempEnchantment(2)
-						else
-							CancelUnitBuff("player", i)
-						end
-					end
-				end
-			end)
 		else
 			buffs[i]:SetScript("OnMouseUp", nil)
 		end

modules/PlayerMana.lua

@@ -121,6 +121,10 @@ function PlayerMana.prototype:Enable(core)
 	self:RegisterEvent("UNIT_ENTERED_VEHICLE", "EnteringVehicle")
 	self:RegisterEvent("UNIT_EXITED_VEHICLE", "ExitingVehicle")
 
+	if not self.CustomOnUpdate then
+		self.CustomOnUpdate = function() self:Update(self.unit) end
+	end
+
 	-- allow new 'predicted power' stuff to show the power updates constantly instead of ticking
 	if GetCVarBool("predictedPower") then
 		self:SetupOnUpdate(true)
@@ -137,13 +141,13 @@ end
 
 function PlayerMana.prototype:SetupOnUpdate(enable)
 	if enable then
-		self.frame:SetScript("OnUpdate", function() self:Update(self.unit) end)
+		IceHUD.IceCore:RequestUpdates(self, self.CustomOnUpdate)
 	else
 		-- make sure the animation has a chance to finish filling up the bar before we cut it off completely
 		if self.CurrScale ~= self.DesiredScale then
-			self.frame:SetScript("OnUpdate", function() self:MyOnUpdate() end)
+			IceHUD.IceCore:RequestUpdates(self, self.MyOnUpdateFunc)
 		else
-			self.frame:SetScript("OnUpdate", nil)
+			IceHUD.IceCore:RequestUpdates(self, nil)
 		end
 	end
 end
@@ -186,16 +190,6 @@ function PlayerMana.prototype:Redraw()
 end
 
 
--- OVERRIDE
-function PlayerMana.prototype:UseTargetAlpha(scale)
-	if (self.manaType == SPELL_POWER_RAGE or self.manaType == SPELL_POWER_RUNIC_POWER) then
-		return (scale and (scale > 0))
-	else
-		return PlayerMana.super.prototype.UseTargetAlpha(self, scale)
-	end
-end
-
-
 function PlayerMana.prototype:ManaType(event, unit)
 	if (unit ~= self.unit) then
 		return
@@ -214,6 +208,12 @@ function PlayerMana.prototype:ManaType(event, unit)
 		end
 	end
 
+	if self.manaType == SPELL_POWER_RAGE or self.manaType == SPELL_POWER_RUNIC_POWER then
+		self.bTreatEmptyAsFull = true
+	else
+		self.bTreatEmptyAsFull = false
+	end
+
 	self:Update(self.unit)
 end
 
@@ -239,12 +239,13 @@ function PlayerMana.prototype:Update(unit, powertype)
 		self:Show(true)
 	end
 
+	local useTicker = self:ShouldUseTicker()
 	-- the user can toggle the predictedPower cvar at any time and the addon will not get notified. handle it.
-	if not self.tickerFrame and self:ShouldUseTicker() then
+	if not self.tickerFrame and useTicker then
 		self:CreateTickerFrame()
 	end
 
-	if (self.manaType ~= SPELL_POWER_ENERGY and self:ShouldUseTicker()) then
+	if (self.manaType ~= SPELL_POWER_ENERGY and useTicker) then
 		self.tickerFrame:Hide()
 	end
 
@@ -268,15 +269,16 @@ function PlayerMana.prototype:Update(unit, powertype)
 
 	self:UpdateBar(self.manaPercentage, color)
 
-	local powerType = UnitPowerType(self.unit)
+	self:ConditionalUpdateFlash()
-	if (self.manaPercentage == 1 and powerType ~= 1 and powerType ~= 6)
+
-		or (self.manaPercentage == 0 and (powerType == 1 or powerType == 6)) then
+	if (self.manaPercentage == 1 and self.manaType ~= SPELL_POWER_RAGE and self.manaType ~= SPELL_POWER_RUNIC_POWER)
+		or (self.manaPercentage == 0 and (self.manaType == SPELL_POWER_RAGE or self.manaType == SPELL_POWER_RUNIC_POWER)) then
 		self:SetupOnUpdate(false)
 	elseif GetCVarBool("predictedPower") then
 		self:SetupOnUpdate(true)
 	end
 
-	if self:ShouldUseTicker() then
+	if useTicker then
 		-- hide ticker if rest of the bar is not visible
 		if (self.alpha == 0) then
 	 		self.tickerFrame.spark:SetVertexColor(self:GetColor("PlayerEnergy", 0))
@@ -315,7 +317,6 @@ function PlayerMana.prototype:UpdateBar(scale, color, alpha)
 end
 
 
-
 function PlayerMana.prototype:UpdateEnergy(event, unit)
 	if (unit and (unit ~= self.unit)) then
 		return

modules/SliceAndDice.lua

@@ -33,6 +33,8 @@ function SliceAndDice.prototype:init()
 
 	self:SetDefaultColor("SliceAndDice", 0.75, 1, 0.2)
 	self:SetDefaultColor("SliceAndDicePotential", 1, 1, 1)
+
+	self.bTreatEmptyAsFull = true
 end
 
 -- 'Public' methods -----------------------------------------------------------
@@ -208,6 +210,13 @@ function SliceAndDice.prototype:GetBuffDuration(unitName, buffName)
     return nil, nil
 end
 
+function SliceAndDice.prototype:MyOnUpdate()
+	SliceAndDice.super.prototype.MyOnUpdate(self)
+	if self.bUpdateSnd then
+		self:UpdateSliceAndDice(nil, self.unit, true)
+	end
+end
+
 function SliceAndDice.prototype:UpdateSliceAndDice(event, unit, fromUpdate)
     if unit and unit ~= self.unit then
         return
@@ -228,7 +237,7 @@ function SliceAndDice.prototype:UpdateSliceAndDice(event, unit, fromUpdate)
 
     if sndEndTime and sndEndTime >= now then
         if not fromUpdate then
-            self.frame:SetScript("OnUpdate", function() self:UpdateSliceAndDice(nil, self.unit, true) end)
+			self.bUpdateSnd = true
         end
 
         self:Show(true)
@@ -244,7 +253,7 @@ function SliceAndDice.prototype:UpdateSliceAndDice(event, unit, fromUpdate)
 
 	if ((IceHUD.WowVer >= 30000 and GetComboPoints(self.unit, "target") == 0) or (IceHUD.WowVer < 30000 and GetComboPoints() == 0)) or not UnitExists("target") then
             if self.bIsVisible then
-                self.frame:SetScript("OnUpdate", nil)
+                self.bUpdateSnd = nil
             end
 
 			if not self.moduleSettings.alwaysFullAlpha then

modules/TargetCC.lua

@@ -316,18 +316,23 @@ function TargetCC.prototype:GetMaxDebuffDuration(unitName, debuffNames)
 	return unpack(result)
 end
 
+function TargetCC.prototype:MyOnUpdate()
+	TargetCC.super.prototype.MyOnUpdate(self)
+	self:UpdateTargetDebuffs(nil, self.unit, true)
+end
+
 function TargetCC.prototype:UpdateTargetDebuffs(event, unit, isUpdate)
 	local name, duration, remaining
+
 	if not isUpdate then
-		self.frame:SetScript("OnUpdate", function() self:UpdateTargetDebuffs(nil, self.unit, true) end)
 		self.debuffName, self.debuffDuration, self.debuffRemaining = self:GetMaxDebuffDuration(self.unit, self.debuffList)
 	else
-		self.debuffRemaining = math.max(0, self.debuffRemaining - (1.0 / GetFramerate()))
+		self.debuffRemaining = math.max(0, self.debuffRemaining - (GetTime() - self.lastUpdateTime))
 		if self.debuffRemaining <= 0 then
 			self.debuffName = nil
-			self.frame:SetScript("OnUpdate", nil)
 		end
 	end
+	self.lastUpdateTime = GetTime()
 
 	name = self.debuffName
 	duration = self.debuffDuration

modules/TargetInfo.lua

@@ -899,8 +899,10 @@ function IceTargetInfo.prototype:CreateFrame(redraw)
 
 	self.frame:SetAttribute("unit", self.unit)
 
-	self.frame.menu = function()
+	if not self.frame.menu then
-		ToggleDropDownMenu(1, nil, TargetFrameDropDown, "cursor")
+		self.frame.menu = function()
+			ToggleDropDownMenu(1, nil, TargetFrameDropDown, "cursor")
+		end
 	end
 
 
@@ -1058,6 +1060,13 @@ function IceTargetInfo.prototype:CreateIconFrames(parent, direction, buffs, type
 	local lastX = 0
 	local lastBuffSize = 0
 
+	if not self.MyOnEnterBuffFunc then
+		self.MyOnEnterBuffFunc = function(this) self:BuffOnEnter(this) end
+	end
+	if not self.MyOnLeaveBuffFunc then
+		self.MyOnLeaveBuffFunc = function() GameTooltip:Hide() end
+	end
+
 	for i = 1, IceCore.BuffLimit do
 		if (not buffs[i]) then
 			buffs[i] = CreateFrame("Frame", nil, parent)
@@ -1149,8 +1158,8 @@ function IceTargetInfo.prototype:CreateIconFrames(parent, direction, buffs, type
 		buffs[i].id = i
 		if (self.moduleSettings.mouseBuff) then
 			buffs[i]:EnableMouse(true)
-			buffs[i]:SetScript("OnEnter", function(this, ...) self:BuffOnEnter(this, buffs[i].type or type) end)
+			buffs[i]:SetScript("OnEnter", self.MyOnEnterBuffFunc)
-			buffs[i]:SetScript("OnLeave", function() GameTooltip:Hide() end)
+			buffs[i]:SetScript("OnLeave", self.MyOnLeaveBuffFunc)
 		else
 			buffs[i]:EnableMouse(false)
 			buffs[i]:SetScript("OnEnter", nil)
@@ -1532,11 +1541,32 @@ function IceTargetInfo.prototype:OnLeave(frame)
 end
 
 
-function IceTargetInfo.prototype:BuffOnEnter(this, type)
+function IceTargetInfo.prototype:BuffOnEnter(this)
 	if (not self:IsVisible()) then
 		return
 	end
 
+	local type = nil
+	for i = 1, IceCore.BuffLimit do
+		if self.frame.buffFrame.buffs[i] and self.frame.buffFrame.buffs[i] == this then
+			type = self.frame.buffFrame.buffs[i].type
+			break
+		end
+	end
+
+	if not type then
+		for i = 1, IceCore.BuffLimit do
+			if self.frame.debuffFrame.buffs[i] and self.frame.debuffFrame.buffs[i] == this then
+				type = self.frame.debuffFrame.buffs[i].type
+				break
+			end
+		end
+	end
+
+	if not type then
+		return
+	end
+
 	GameTooltip:SetOwner(this, "ANCHOR_BOTTOMRIGHT")
 	if (type == "buff") then
 		GameTooltip:SetUnitBuff(self.unit, this.id)

modules/TargetInvuln.lua

@@ -174,20 +174,24 @@ function TargetInvuln.prototype:GetMaxbuffDuration(unitName, buffNames)
 	return unpack(result)
 end
 
+function TargetInvuln.prototype:MyOnUpdate()
+	TargetInvuln.super.prototype.MyOnUpdate(self)
+	self:UpdateTargetBuffs(nil, self.unit, true)
+end
+
 function TargetInvuln.prototype:UpdateTargetBuffs(event, unit, isUpdate)
 	local name, duration, remaining
-	if not isUpdate then
-		self.frame:SetScript("OnUpdate", function() self:UpdateTargetBuffs(nil, self.unit, true) end)
-		self.buffName, self.buffDuration, self.buffRemaining = self:GetMaxbuffDuration(self.unit, self.buffList)
 
+	if not isUpdate then
+		self.buffName, self.buffDuration, self.buffRemaining = self:GetMaxbuffDuration(self.unit, self.buffList)
 	else
-		self.buffRemaining = math.max(0, self.buffRemaining - (1.0 / GetFramerate()))
+		self.buffRemaining = math.max(0, self.buffRemaining - (GetTime() - self.lastUpdateTime))
 
 		if self.buffRemaining <= 0 then
 			self.buffName = nil
-			self.frame:SetScript("OnUpdate", nil)
 		end
 	end
+	self.lastUpdateTime = GetTime()
 
 	name = self.buffName
 	duration = self.buffDuration

modules/Threat.lua

@@ -32,6 +32,8 @@ function IceThreat.prototype:init(name, unit)
 	self:SetDefaultColor("ThreatCustom", 255, 255, 0)
 	self:SetDefaultColor("ThreatPullAggro", 255, 0, 0)
 	self:SetDefaultColor("ThreatSecondPlace", 255, 255, 0)
+
+	self.bTreatEmptyAsFull = true
 end
 
 -- default settings
@@ -191,11 +193,6 @@ function IceThreat.prototype:CreateFrame()
 	self:CreateSecondThreatBar()
 end
 
--- needs to be inverted for threat bar
-function IceThreat.prototype:UseTargetAlpha(scale)
-	return (scale and (scale > 0))
-end
-
 -- create the aggro range indicator bar
 function IceThreat.prototype:CreateAggroBar()
 	if not (self.aggroBar) then

modules/Vengeance.lua

@@ -12,11 +12,12 @@ function Vengeance.prototype:init()
 	Vengeance.super.prototype.init(self, "Vengeance", "player")
 
 	self.current = 0
-	self.max = floor(0.1*UnitHealthMax(self.unit))
 	self.tooltipBuffer = CreateFrame("GameTooltip","tooltipBuffer",nil,"GameTooltipTemplate")
 	self.tooltipBuffer:SetOwner(WorldFrame, "ANCHOR_NONE")
 
 	self:SetDefaultColor("Vengeance", 200, 45, 45)
+
+	self.bTreatEmptyAsFull = true
 end
 
 -- default settings
@@ -50,11 +51,6 @@ function Vengeance.prototype:Disable(core)
 	self:UnregisterAllEvents()
 end
 
--- OVERRIDE
-function Vengeance.prototype:UseTargetAlpha(scale)
-	return (scale and (scale > 0))
-end
-
 function Vengeance.prototype:UpdateCurrent(event, unit)
 	if (unit and (unit ~= self.unit)) then
 		return