Added display origin and size component

Author: photonstorm

plugins/spine/src/gameobject/SpineGameObject.js

@@ -7,6 +7,7 @@
 var Class = require('../../../../src/utils/Class');
 var ComponentsAlpha = require('../../../../src/gameobjects/components/Alpha');
 var ComponentsBlendMode = require('../../../../src/gameobjects/components/BlendMode');
+var ComponentsComputedSize = require('../../../../src/gameobjects/components/ComputedSize');
 var ComponentsDepth = require('../../../../src/gameobjects/components/Depth');
 var ComponentsFlip = require('../../../../src/gameobjects/components/Flip');
 var ComponentsScrollFactor = require('../../../../src/gameobjects/components/ScrollFactor');
@@ -33,6 +34,7 @@ var SpineGameObject = new Class({
     Mixins: [
         ComponentsAlpha,
         ComponentsBlendMode,
+        ComponentsComputedSize,
         ComponentsDepth,
         ComponentsFlip,
         ComponentsScrollFactor,
@@ -60,6 +62,9 @@ var SpineGameObject = new Class({
 
         this.timeScale = 1;
 
+        this.displayOriginX = 0;
+        this.displayOriginY = 0;
+
         this.setPosition(x, y);
 
         if (key)
@@ -136,6 +141,15 @@ var SpineGameObject = new Class({
 
         this.root = this.getRootBone();
 
+        var w = this.skeletonData.width;
+        var h = this.skeletonData.height;
+
+        this.width = w;
+        this.height = h;
+
+        this.displayOriginX = w / 2;
+        this.displayOriginY = h / 2;
+
         return this;
     },