From 776cc3958d2b6545bb33669260953c175287433e Mon Sep 17 00:00:00 2001
From: Matias <matias@cheech>
Date: Thu, 13 Jun 2013 14:17:27 +0300
Subject: [PATCH] only update attachments if they change

---
 spine-lua/Animation.lua | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/spine-lua/Animation.lua b/spine-lua/Animation.lua
index 8d5fb15c3..4ba650705 100644
--- a/spine-lua/Animation.lua
+++ b/spine-lua/Animation.lua
@@ -413,9 +413,16 @@ function Animation.AttachmentTimeline.new ()
 		end
 
 		local attachmentName = self.attachmentNames[frameIndex]
-		local attachment
-		if attachmentName then attachment = skeleton:getAttachment(self.slotName, attachmentName) end
-		skeleton.slotsByName[self.slotName]:setAttachment(attachment)
+        local slot = skeleton.slotsByName[self.slotName]
+        if attachmentName then
+            if not slot.attachment then
+                slot:setAttachment(skeleton:getAttachment(self.slotName, attachmentName))
+            elseif attachmentName and slot.attachment.name ~= attachmentName then
+                slot:setAttachment(skeleton:getAttachment(self.slotName, attachmentName))
+            end
+        end
+
+
 	end
 
 	return self