/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Ball class
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 5;
	self.speedY = 5;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		// Check for collision with walls
		if (self.x - ballGraphics.width / 2 <= 0 || self.x + ballGraphics.width / 2 >= 2048) {
			self.speedX *= -1;
		}
		if (self.y - ballGraphics.height / 2 <= 0 || self.y + ballGraphics.height / 2 >= 2732) {
			self.speedY *= -1;
		}
		// Change direction every 3 seconds
		if (LK.ticks % 180 == 0) {
			self.speedX = Math.random() * 3 + 3;
			self.speedY = Math.random() * 3 + 3;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
// Initialize ball
var ball = game.addChild(new Ball());
ball.x = 2048 / 2;
ball.y = 2732 - ball.height / 2;
// Initialize circle
var circle = game.addChild(LK.getAsset('Circle', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2
}));
// Update game every tick
game.update = function () {
	ball.update();
};

===================================================================
--- original.js
+++ change.js
@@ -42,8 +42,15 @@
 // Initialize ball
 var ball = game.addChild(new Ball());
 ball.x = 2048 / 2;
 ball.y = 2732 - ball.height / 2;
+// Initialize circle
+var circle = game.addChild(LK.getAsset('Circle', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 2048 / 2,
+	y: 2732 / 2
+}));
 // Update game every tick
 game.update = function () {
 	ball.update();
 };
\ No newline at end of file