CCParticleSystem.setDisplayFrame

修正使用同一个frame的不同图片无效的问题

Author: meiguizhinian

Diff for: cocos2d/particle/CCParticleSystem.js

@@ -2035,8 +2035,7 @@ cc.ParticleSystem = cc.Node.extend(/** @lends cc.ParticleSystem# */{
 
         // update texture before updating texture rect
         var texture = spriteFrame.getTexture(), locTexture = this._texture;
-        if (locTexture !== texture)
-            this.setTextureWithRect(texture, spriteFrame.getRect());
+        this.setTextureWithRect(texture, spriteFrame.getRect());
     },
 
     /**