class Main extends Sprite
{
	private var doneFrame:Bool;

	public function new()
	{
		super();

		doneFrame = false;
		graphics.beginFill(0xff5555);
		graphics.drawRect(100,100,100,100);
		graphics.endFill();

		// wait till we've displayed a frame (loading screen) before starting for reals
		addEventListener(Event.ENTER_FRAME, start);
	}

	private function start(e:Event)
	{
		if (!doneFrame)
		{
			doneFrame = true;
			return;
		}
		removeEventListener(Event.ENTER_FRAME, start);
		
		// ... start your game
	}
}