Added hitArea property and setHitArea method

Author: photonstorm

v3/src/checksum.js

@@ -1,4 +1,4 @@
 var CHECKSUM = {
-build: 'ff2ba330-671a-11e7-ade7-abb54a342c15'
+build: '3f89fe30-6767-11e7-a84d-c5c9fa126d36'
 };
 module.exports = CHECKSUM;

v3/src/gameobjects/GameObject.js

@@ -36,6 +36,9 @@ var GameObject = new Class({
         this.renderMask = 15;
         this.renderFlags = 15;
 
+        this.hitArea = null;
+        this.hitAreaCallback = null;
+
         //  Trigger a state z-depth sort
         this.state.sys.sortChildrenFlag = true;
     },
@@ -53,6 +56,14 @@ var GameObject = new Class({
     {
     },
 
+    setHitArea: function (shape, callback)
+    {
+        this.hitArea = shape;
+        this.hitAreaCallback = callback;
+
+        return this;
+    },
+
     //  Can be overridden by custom Game Objects, but provides default export functionality
     toJSON: function ()
     {