[AS3] Bitmaps in einen Array laden...

package {
	import flash.display.*;
	import flash.events.*;
	import flash.geom.Rectangle;
	import flash.text.*;
	import flash.utils.setInterval;
	/*
	13 = Enter
	27 = Escape
	37 = Links
	38 = Oben
	39 = Rechts
	40 = Unten


				   [N]ie
			 		|
					|
	  [W]aschen-----|-------[O]hne
			 		|
			 		|
				   [S]eife
	*/
	[SWF(width="400", height="350", backgroundColor="#000000", frameRate="30")]
	public class cp extends Sprite
	{
		public var snakeBit:Bitmap;
		public var snakeBitData:BitmapData;
		public var snakeDirection:String = "O";

		public var gameSpeed:Number = 100;
		public var gameAddedFood:Array;
		public var gameWidth:Number = 400;
		public var gameHeight:Number = 350;

		public function cp()
		{
			snakeBitData = new BitmapData(10,10,false,0xFF00FF00);
			snakeBitData.fillRect(new Rectangle(10,10,10,10),0xFF00FF00);
			snakeBit = new Bitmap(snakeBitData);
			snakeBit.y = 50;
			addChild(snakeBit);

			stage.addEventListener(KeyboardEvent.KEY_DOWN,function(e:KeyboardEvent):void
			{
				trace(e.keyCode);
				switch(e.keyCode)
				{
					case 13:
					startGame();
					break; 

					case 27:
					addFood();
					break;

					case 37:
					snakeDirection = "W";
					break;

					case 38:
					snakeDirection = "N";
					break;

					case 39:
					snakeDirection = "O";
					break;

					case 40:
					snakeDirection = "S";
					break;	
				}

			});
		}
		public function startGame():void
		{
			setInterval(IntervalTodoList,gameSpeed);
		}

		public function addFood():void
		{
			var randomX:Number;
			var randomY:Number;

			randomX = Math.floor(Math.random() * (gameWidth-10));
			randomY = Math.floor(Math.random() * (gameHeight-10));

			trace(randomX + " - " + randomY);
			var newFoodBitData:BitmapData = new BitmapData(10,10,false,0xFF00FF00);
			newFoodBitData.fillRect(new Rectangle(10,10,10,10),0xFF00FF00);
			gameAddedFood.push(new Bitmap(newFoodBitData)); // Diese Zeile wird makiert(Fehlerzeile)
			this.addChild(gameAddedFood[0]);
		}
		public function IntervalTodoList():void
		{
			if(snakeBit.x > gameWidth) snakeBit.x = 0;
			if(snakeBit.x < 0) snakeBit.x = 400;
			if(snakeBit.y > gameHeight) snakeBit.y = 0;
			if(snakeBit.y < 0) snakeBit.y = 350;

			switch(snakeDirection)
			{
				case "N":
				snakeBit.y -= 10;
				break;

				case "O":
				snakeBit.x += 10;
				break;

				case "S":
				snakeBit.y += 10;
				break;

				case "W":
				snakeBit.x -= 10;
				break;
			}			
		}
	}
}