Adding Type support for collision checks.

src/gameobjects/Button.js

@@ -21,6 +21,8 @@ Phaser.Button = function (game, x, y, key, callback, callbackContext, overFrame,
 
 	Phaser.Sprite.call(this, game, x, y, key, outFrame);
 
+    this.type = Phaser.BUTTON;
+
     this._onOverFrameName = null;
     this._onOutFrameName = null;
     this._onDownFrameName = null;

src/gameobjects/Graphics.js

@@ -14,6 +14,8 @@ Phaser.Graphics = function (game, x, y) {
 
 	PIXI.DisplayObjectContainer.call(this);
 
+    this.type = Phaser.GRAPHICS;
+
 	this.position.x = x;
 	this.position.y = y;
 

src/gameobjects/RenderTexture.js

@@ -13,6 +13,8 @@ Phaser.RenderTexture = function (game, key, width, height) {
 
 	this.frame = new PIXI.Rectangle(0, 0, this.width, this.height);	
 
+	this.type = Phaser.RENDERTEXTURE;
+
 	if (PIXI.gl)
 	{
 		this.initWebGL();

src/gameobjects/Sprite.js

@@ -17,6 +17,8 @@ Phaser.Sprite = function (game, x, y, key, frame) {
 
     this.name = '';
 
+    this.type = Phaser.SPRITE;
+
     this.renderOrderID = -1;
 
     //  If you would like the Sprite to have a lifespan once 'born' you can set this to a positive value. Handy for particles, bullets, etc.

src/gameobjects/Text.js

@@ -14,6 +14,8 @@ Phaser.Text = function (game, x, y, text, style) {
 
 	Phaser.Sprite.call(this, game, x, y, canvasID);
 
+    this.type = Phaser.TEXT;
+
     this.setText(text);
     this.setStyle(style);
     

src/gameobjects/TileSprite.js

@@ -13,6 +13,8 @@ Phaser.TileSprite = function (game, x, y, width, height, key, frame) {
 
 	PIXI.TilingSprite.call(this, this.texture, width, height);
 
+	this.type = Phaser.TILESPRITE;
+
 	/**
 	 * The scaling of the image that is being tiled
 	 *