first attempt to implement GameObject

app/Game/Core/GameObjects/GameObject.js

@@ -0,0 +1,29 @@
+define([
+    "Lib/Vendor/Box2D",
+    "Lib/Utilities/Exception"
+],
+ 
+function (Box2D, Exception) {
+ 
+    function GameObject(physicsEngine) {
+        var def = this.getBodyDef();
+        this.body = physicsEngine.getWorld().CreateBody(def);
+    }
+
+    GameObject.prototype.getBodyDef = function() {
+        throw new Exception('Abstract method GameObject.getBodyDef not overwritten');
+    };
+
+    GameObject.prototype.destroy = function() {
+        if(this.body instanceof Box2D.Dynamics.b2Body) {
+            this.body.GetWorld().DestroyBody(this.body);   
+        }
+    };
+
+    GameObject.prototype.getBody = function() {
+    	return this.body;
+    };
+ 
+    return GameObject;
+ 
+});