add Smooth Progress

WeakAuras/compat.lua

@@ -54,4 +54,94 @@ RAID_CLASS_COLORS.ROGUE.colorStr = "fffff569"
 RAID_CLASS_COLORS.DRUID.colorStr = "ffff7d0a"
 RAID_CLASS_COLORS.SHAMAN.colorStr = "ff0070de"
 RAID_CLASS_COLORS.WARRIOR.colorStr = "ffc79c6e"
-RAID_CLASS_COLORS.DEATHKNIGHT.colorStr = "ffc41f3b"
+RAID_CLASS_COLORS.DEATHKNIGHT.colorStr = "ffc41f3b"
+
+if not SmoothStatusBarMixin then
+	function Lerp(startValue, endValue, amount)
+		return (1 - amount) * startValue + amount * endValue;
+	end
+
+	function Clamp(value, min, max)
+		if value > max then
+			return max;
+		elseif value < min then
+			return min;
+		end
+		return value;
+	end
+
+	function Saturate(value)
+		return Clamp(value, 0, 1);
+	end
+
+	local TARGET_FRAME_PER_SEC = 60;
+	function DeltaLerp(startValue, endValue, amount, timeSec)
+		return Lerp(startValue, endValue, Saturate(amount * timeSec * TARGET_FRAME_PER_SEC));
+	end
+
+	function FrameDeltaLerp(startValue, endValue, amount, elapsed)
+		return DeltaLerp(startValue, endValue, amount, elapsed);
+	end
+
+	local g_updatingBars = {};
+
+	local function IsCloseEnough(bar, newValue, targetValue)
+		local min, max = bar:GetMinMaxValues();
+		local range = max - min;
+		if range > 0 then
+			return math.abs((newValue - targetValue) / range) < .00001;
+		end
+
+		return true;
+	end
+
+	local function ProcessSmoothStatusBars(self, elapsed)
+		for bar, targetValue in pairs(g_updatingBars) do
+			local effectiveTargetValue = Clamp(targetValue, bar:GetMinMaxValues());
+			local newValue = FrameDeltaLerp(bar:GetValue(), effectiveTargetValue, .25, elapsed);
+
+			if IsCloseEnough(bar, newValue, effectiveTargetValue) then
+				g_updatingBars[bar] = nil;
+				bar:SetValue(effectiveTargetValue);
+			else
+				bar:SetValue(newValue);
+			end
+		end
+	end
+
+	CreateFrame("Frame"):SetScript("OnUpdate", ProcessSmoothStatusBars)
+
+	SmoothStatusBarMixin = {};
+
+	function SmoothStatusBarMixin:ResetSmoothedValue(value) --If nil, tries to set to the last target value
+		local targetValue = g_updatingBars[self];
+		if targetValue then
+			g_updatingBars[self] = nil;
+			self:SetValue(value or targetValue);
+		elseif value then
+			self:SetValue(value);
+		end
+	end
+
+	function SmoothStatusBarMixin:SetSmoothedValue(value)
+		g_updatingBars[self] = value;
+	end
+
+	function SmoothStatusBarMixin:SetMinMaxSmoothedValue(min, max)
+		self:SetMinMaxValues(min, max);
+
+		local targetValue = g_updatingBars[self];
+		if targetValue then
+			local ratio = 1;
+			if max ~= 0 and self.lastSmoothedMax and self.lastSmoothedMax ~= 0 then
+				ratio = max / self.lastSmoothedMax;
+			end
+
+			g_updatingBars[self] = targetValue * ratio;
+		end
+
+		self.lastSmoothedMin = min;
+		self.lastSmoothedMax = max;
+	end
+end
+