Merge pull request cocos2d#555 from dingpinglv/iss1348_PortBaseNode

fixed cocos2d#1348 modify code for setter of cc.Node

Author: SeanLin

cocos2d/base_nodes/CCNode.js

@@ -484,8 +484,7 @@ cc.Node = cc.Class.extend(/** @lends cc.Node# */{
             this._position.y = yValue;
             //this._position = cc.p(newPosOrxValue,yValue);
         } else if (newPosOrxValue.y != null) {
-            this._position.x = newPosOrxValue.x;
-            this._position.y = newPosOrxValue.y;
+            this._position = new cc.Point(newPosOrxValue.x,newPosOrxValue.y);
         }
 
         //save dirty region when after changed
@@ -623,11 +622,8 @@ cc.Node = cc.Class.extend(/** @lends cc.Node# */{
             //save dirty region when before change
             //this._addDirtyRegionToDirector(this.getBoundingBoxToWorld());
 
-            this._anchorPoint.x = point.x;
-            this._anchorPoint.y = point.y;
-
-            this._anchorPointInPoints.x = this._contentSize.width * this._anchorPoint.x;
-            this._anchorPointInPoints.y = this._contentSize.height * this._anchorPoint.y;
+            this._anchorPoint = new cc.Point(point.x, point.y);
+            this._anchorPointInPoints = new cc.Point(this._contentSize.width * this._anchorPoint.x,this._contentSize.height * this._anchorPoint.y);
 
             //save dirty region when after changed
             //this._addDirtyRegionToDirector(this.getBoundingBoxToWorld());
@@ -658,11 +654,8 @@ cc.Node = cc.Class.extend(/** @lends cc.Node# */{
         if (!cc.Size.CCSizeEqualToSize(size, this._contentSize)) {
             //save dirty region when before change
             //this._addDirtyRegionToDirector(this.getBoundingBoxToWorld());
-            this._contentSize.width = size.width;
-            this._contentSize.height = size.height;
-
-            this._anchorPointInPoints.width = this._contentSize.width * this._anchorPoint.x;
-            this._anchorPointInPoints.height = this._contentSize.height * this._anchorPoint.y;
+            this._contentSize = new cc.Size(size.width,size.height);
+            this._anchorPointInPoints = new cc.Point(this._contentSize.width * this._anchorPoint.x, this._contentSize.height * this._anchorPoint.y);
             //save dirty region when before change
             //this._addDirtyRegionToDirector(this.getBoundingBoxToWorld());
             this.setNodeDirty();