remove findslot from skeleton and make it into a table, for faster lookups

spine-lua/Animation.lua

@@ -36,7 +36,7 @@ function Animation.new (name, timelines, duration)
 	function self:apply (skeleton, time, loop)
 		if not skeleton then error("skeleton cannot be nil.", 2) end
 
-		if loop and duration > 0 then time = time % duration end
+		if loop and duration then time = time % duration end
 
 		for i,timeline in ipairs(self.timelines) do
 			timeline:apply(skeleton, time, 1)
@@ -46,7 +46,7 @@ function Animation.new (name, timelines, duration)
 	function self:mix (skeleton, time, loop, alpha)
 		if not skeleton then error("skeleton cannot be nil.", 2) end
 
-		if loop and duration > 0 then time = time % duration end
+		if loop and duration then time = time % duration end
 
 		for i,timeline in ipairs(self.timelines) do
 			timeline:apply(skeleton, time, alpha)
@@ -371,11 +371,11 @@ function Animation.ColorTimeline.new ()
 		local g = lastFrameG + (frames[frameIndex + FRAME_G] - lastFrameG) * percent
 		local b = lastFrameB + (frames[frameIndex + FRAME_B] - lastFrameB) * percent
 		local a = lastFrameA + (frames[frameIndex + FRAME_A] - lastFrameA) * percent
-		if alpha < 1 then
-			slot:setColor(slot.r + (r - slot.r) * alpha, slot.g + (g - slot.g) * alpha, slot.b + (b - slot.b) * alpha, slot.a + (a - slot.a) * alpha)
-		else
-			slot:setColor(r, g, b, a)
-		end
+		--if alpha < 1 then
+		--	slot:setColor(slot.r + (r - color.r) * alpha, slot.g + (g - color.g) * alpha, slot.b + (b - color.b) * alpha, slot.a + (a - color.a) * alpha)
+		--else
+		 	slot:setColor(r, g, b, a)
+		--end
 	end
 
 	return self
@@ -415,7 +415,7 @@ function Animation.AttachmentTimeline.new ()
 		local attachmentName = self.attachmentNames[frameIndex]
 		local attachment
 		if attachmentName then attachment = skeleton:getAttachment(self.slotName, attachmentName) end
-		skeleton:findSlot(self.slotName):setAttachment(attachment)
+		skeleton.slotsByName[self.slotName]:setAttachment(attachment)
 	end
 
 	return self

spine-lua/Skeleton.lua

@@ -35,6 +35,7 @@ function Skeleton.new (skeletonData)
 		data = skeletonData,
 		bones = {},
 		slots = {},
+        slotsByName = {},
 		drawOrder = {}
 	}
 
@@ -73,14 +74,6 @@ function Skeleton.new (skeletonData)
 		return nil
 	end
 
-	function self:findSlot (slotName)
-		if not slotName then error("slotName cannot be nil.", 2) end
-		for i,slot in ipairs(self.slots) do
-			if slot.data.name == slotName then return slot end
-		end
-		return nil
-	end
-
 	function self:setSkin (skinName)
 		local newSkin
 		if skinName then
@@ -147,6 +140,7 @@ function Skeleton.new (skeletonData)
 		local bone = self.bones[spine.utils.indexOf(skeletonData.bones, slotData.boneData)]
 		local slot = Slot.new(slotData, self, bone)
 		table.insert(self.slots, slot)
+        self.slotsByName[slot.data.name] = slot
 		table.insert(self.drawOrder, slot)
 	end