fix: set las frame in atlasrenderer when reverse mode

Author: bladecoder

blade-engine/src/com/bladecoder/engine/model/AtlasRenderer.java

@@ -222,7 +222,12 @@ public void startAnimation(String id, int repeatType, int count,
 
 		faTween = new FATween();
 		faTween.start(this, repeatType, count, currentAnimation.duration, cb);
-		setFrame(0);
+		
+		if(repeatType == Tween.REVERSE)
+			setFrame(getNumFrames() - 1);
+		else
+			setFrame(0);
+		
 		computeBbox();
 	}