commit from backup

Libraries/oUF_Plugins/oUF_Smooth/oUF_Smooth.lua

@@ -0,0 +1,64 @@
+local _, ns = ...
+local oUF = ns.oUF or oUF
+if not oUF then return end
+
+local smoothing = {}
+local function Smooth(self, value)
+	if value ~= self:GetValue() or value == 0 then
+		smoothing[self] = value
+	else
+		smoothing[self] = nil
+	end
+end
+
+local function SmoothBar(bar)
+	if not bar.SetValue_ then
+		bar.SetValue_ = bar.SetValue;
+		bar.SetValue = Smooth;
+	end
+end
+
+local function ResetBar(bar)
+	if bar.SetValue_ then
+		bar.SetValue = bar.SetValue_;
+		bar.SetValue_ = nil;
+	end
+end
+
+local function hook(frame)
+	if frame.Health then
+		SmoothBar(frame.Health)
+	end
+	if frame.Power then
+		SmoothBar(frame.Power)
+	end
+	if frame.AltPowerBar then
+		SmoothBar(frame.AltPowerBar)
+	end
+end
+
+for i, frame in ipairs(oUF.objects) do hook(frame) end
+oUF:RegisterInitCallback(hook)
+
+local f, min, max = CreateFrame('Frame'), math.min, math.max
+f:SetScript('OnUpdate', function()
+	local rate = GetFramerate()
+	local limit = 30/rate
+
+	for bar, value in pairs(smoothing) do
+		local cur = bar:GetValue()
+		local new = cur + min((value-cur)/3, max(value-cur, limit))
+		if new ~= new then
+			-- Mad hax to prevent QNAN.
+			new = value
+		end
+		bar:SetValue_(new)
+		if (cur == value or abs(new - value) < 2) and bar.Smooth then
+			bar:SetValue_(value)
+			smoothing[bar] = nil
+		elseif not bar.Smooth then
+			bar:SetValue_(value)
+			smoothing[bar] = nil		
+		end
+	end
+end)