/**** 
* Classes
****/ 
var ArenaCircle = Container.expand(function () {
	var self = Container.call(this);
	self.radius = 2048 * 0.4;
	var circleGraphics = self.attachAsset('arenaCircle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var orbitLine = self.attachAsset('orbitLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	circleGraphics.width = self.radius * 2;
	circleGraphics.height = self.radius * 2;
	orbitLine.width = self.radius * 2;
	orbitLine.height = 10;
	orbitLine.alpha = 0;
	self.addChild(circleGraphics);
	self.addChild(orbitLine);
	self.x = 2048 / 2;
	self.y = 2732 / 2;
});
var Ball = Container.expand(function (arenaRadius, paddle, game) {
	var self = Container.call(this);
	Ball.prototype.animateScoreText = function () {
		var originalScale = this.game.scoreTxt.scale.x;
		var targetScale = originalScale * 1.25;
		var expandDuration = 50;
		var contractDuration = 100;
		LK.setTimeout(function () {
			this.game.scoreTxt.scale.set(targetScale);
		}.bind(this), expandDuration);
		LK.setTimeout(function () {
			this.game.scoreTxt.scale.set(originalScale);
		}.bind(this), expandDuration + contractDuration);
	};
	self.game = game;
	Ball.prototype.intersectsBounds = function (boundsA, boundsB) {
		return boundsA.x < boundsB.x + boundsB.width && boundsA.x + boundsA.width > boundsB.x && boundsA.y < boundsB.y + boundsB.height && boundsA.y + boundsA.height > boundsB.y;
	};
	self.paddle = paddle;
	Ball.prototype.isCollidingWithArenaEdge = function (arenaCircle) {
		var dx = this.x - 2048 / 2;
		var dy = this.y - 2732 / 2;
		var distance = Math.sqrt(dx * dx + dy * dy);
		return distance + this.width / 2 > arenaCircle.radius;
	};
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var angleToPaddle = Math.atan2(100 - 2732 / 2, 2048 / 2 - 2048 / 2);
	self.velocity = {
		x: 5 * Math.cos(angleToPaddle),
		y: 5 * Math.sin(angleToPaddle)
	};
	self.radius = arenaRadius;
	self._move_migrated = function (arenaCircle) {
		this.applyVelocity();
		if (this.isCollidingWithPaddle(this.paddle)) {
			this.bounceOffPaddle(this.paddle);
		} else if (this.isCollidingWithArenaEdge(arenaCircle)) {
			LK.showGameOver();
			this.reset();
		}
		this.x += this.velocity.x;
		this.y += this.velocity.y;
		this.game.collectCoin(this);
	};
	Ball.prototype.applyVelocity = function () {
		var dx = this.x - 2048 / 2;
		var dy = this.y - 2732 / 2;
		var angle = Math.atan2(dy, dx);
		var speed = Math.sqrt(this.velocity.x * this.velocity.x + this.velocity.y * this.velocity.y) * 1.005;
		angle += this.velocity.angleChange;
		LK.setTimeout(function () {
			this.x = 2048 / 2 + Math.cos(angle) * this.radius;
			this.y = 2732 / 2 + Math.sin(angle) * this.radius;
		}.bind(this), 1000);
	};
	Ball.prototype.checkArenaCollision = function (paddle, arenaCircle) {
		if (this.isCollidingWithArenaEdge(arenaCircle)) {
			this.bounceOffArenaEdge(paddle.angle, paddle.speed);
		} else if (this.isCollidingWithPaddle(paddle)) {
			this.bounceOffPaddle(paddle);
		}
	};
	Ball.prototype.isCollidingWithPaddle = function (paddle) {
		if (paddle) {
			if (paddle) {
				var paddleCenter = {
					x: paddle.x,
					y: paddle.y
				};
				var ballCenter = {
					x: this.x,
					y: this.y
				};
				var dx = paddleCenter.x - ballCenter.x;
				var dy = paddleCenter.y - ballCenter.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				return distance < paddle.width / 2 + this.width / 2;
			}
		}
		return false;
	};
	Ball.prototype.bounceOffPaddle = function (paddle) {
		var angleToPaddleCenter = Math.atan2(paddle.y - this.y, paddle.x - this.x);
		var speed = Math.sqrt(this.velocity.x * this.velocity.x + this.velocity.y * this.velocity.y) * 1.015;
		this.velocity.x = speed * Math.cos(angleToPaddleCenter + Math.PI);
		this.velocity.y = speed * Math.sin(angleToPaddleCenter + Math.PI);
		if (!this.hasScored) {
			var previousScore = this.game.score;
			this.game.score += 1;
			this.game.scoreTxt.setText(this.game.score.toString());
			this.animateScoreText();
			var newScore = this.game.score;
			if (Math.floor(newScore / 10) > Math.floor(previousScore / 10)) {
				this.game.animateWowScore();
			}
			this.hasScored = true;
			if (!this.speedIncreased) {
				self.paddle.speed *= 1.005;
				this.speedIncreased = true;
				LK.setTimeout(function () {
					self.speedIncreased = false;
				}, 500);
			} else {
				self.paddle.speed *= 1.005;
			}
			// Play the 'Hit' sound when the ball hits the paddle
			LK.getSound('Hit').play();
		}
		LK.setTimeout(function () {
			self.hasScored = false;
		}, 500);
	};
	self.reset = function () {
		self.x = 2048 / 2;
		self.y = 2732 / 2;
		var initialAngle = self.paddle.angle;
		self.velocity = {
			x: 5 * Math.cos(initialAngle),
			y: 5 * Math.sin(initialAngle)
		};
	};
});
var BonusArea = Container.expand(function () {
	var self = Container.call(this);
	var bonusAreaGraphics = self.attachAsset('bonusArea', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bonusAreaGraphics.alpha = 0;
	self.addChild(bonusAreaGraphics);
	self.x = 2048 / 2;
	self.y = 2732 / 2;
});
var Coin = Container.expand(function (bonusArea) {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.addChild(coinGraphics);
	self.placeRandomly = function () {
		var padding = 200;
		var minX = bonusArea.x - bonusArea.width / 2 + coinGraphics.width / 2 + padding;
		var maxX = bonusArea.x + bonusArea.width / 2 - coinGraphics.width / 2 - padding;
		var minY = bonusArea.y - bonusArea.height / 2 + coinGraphics.height / 2 + padding;
		var maxY = bonusArea.y + bonusArea.height / 2 - coinGraphics.height / 2 - padding;
		self.x = Math.random() * (maxX - minX) + minX;
		self.y = Math.random() * (maxY - minY) + minY;
	};
	self.placeRandomly();
});
var CoinExplosion = Container.expand(function () {
	var self = Container.call(this);
	var explosionGraphics = self.attachAsset('coinExplosion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.addChild(explosionGraphics);
	self.animate = function () {
		LK.setTimeout(function () {
			self.destroy();
		}, 100);
	};
});
var Paddle = Container.expand(function (arenaRadius) {
	var self = Container.call(this);
	var paddleGraphics = self.attachAsset('paddle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.addChild(paddleGraphics);
	self.angle = Math.random() * 2 * Math.PI;
	self.radius = arenaRadius + 20;
	self.speed = 0.035;
	self._move_migrated = function () {
		this.updatePosition();
	};
	Paddle.prototype.updatePosition = function () {
		self.angle += self.speed;
		var cosAngle = Math.cos(self.angle);
		var sinAngle = Math.sin(self.angle);
		self.x = self.radius * cosAngle + 2048 / 2;
		self.y = self.radius * sinAngle + 2732 / 2;
		paddleGraphics.rotation = self.angle + Math.PI / 2 + Math.PI / 2 - Math.PI / 9 - Math.PI / 18;
	};
	self.reverseDirection = function () {
		self.speed *= -1;
	};
});

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

/**** 
* Game Code
****/ 
game.score = 0;
game.scoreTxt = new Text2(game.score.toString(), {
	size: 227.8125 * 0.9,
	fill: "#ffffff",
	stroke: "#075079",
	strokeThickness: 11.25,
	font: "'Luckiest Guy', 'Arial Black', sans-serif"
});
game.scoreTxt.anchor.set(0.5, 0.5);
game.scoreTxt.x = 2048 / 2;
game.scoreTxt.y = 2732 / 2 + 5;
var bonusArea = game.addChild(new BonusArea());
var coin = game.addChild(new Coin(bonusArea));
game.collectCoin = function (ball) {
	if (ball.intersects(coin)) {
		var explosion = game.addChild(new CoinExplosion());
		explosion.x = coin.x;
		explosion.y = coin.y;
		explosion.animate();
		coin.placeRandomly();
		game.score += 2;
		game.scoreTxt.setText(game.score.toString());
		ball.animateScoreText();
		var newScore = game.score;
		if (Math.floor(newScore / 10) > Math.floor((newScore - 2) / 10)) {
			game.animateWowScore();
		}
		// Play the 'collectGold' sound when the coin is collected
		LK.getSound('collectGold').play();
	}
};
game.scoreTxt.anchor.set(0.5, 0.5);
game.scoreTxt.x = 2048 / 2;
var arenaCircle = game.addChild(new ArenaCircle());
game.scoreTxt.y = 2732 / 2 + 5;
game.setBackgroundColor(0xFFFFFF);
var background = game.attachAsset('background', {
	anchorX: 0.5,
	anchorY: 0.5
});
background.width = 2048;
background.height = 2732;
background.x = 2048 / 2;
background.y = 2732 / 2;
game.addChildAt(background, 0);
var bonusArea = game.addChild(new BonusArea());
game.wowScore = game.attachAsset('wowScore', {
	anchorX: 0.5,
	anchorY: 0.5
});
game.wowScore.y = 3000;
game.wowScore.x = 2048 / 2;
var paddle = game.addChild(new Paddle(arenaCircle.radius));
paddle.x = 2048 / 2;
paddle.y = 100;
game.addChild(game.scoreTxt);
var ball = game.addChild(new Ball(arenaCircle.radius, paddle, game));
ball.reset();
game.addChild(coin);
var isGameOver = false;
LK.playMusic('Background');
LK.on('tick', function () {
	paddle._move_migrated();
	ball._move_migrated(arenaCircle);
});
game.animateWowScore = function () {
	var slideUp = LK.setInterval(function () {
		game.wowScore.y -= 100;
		if (game.wowScore.y <= 3000 / 1.25) {
			LK.clearInterval(slideUp);
			// Play the 'WOW' sound effect when the WOW element appears
			LK.getSound('WOW').play();
			LK.setTimeout(function () {
				var slideDown = LK.setInterval(function () {
					game.wowScore.y += 100;
					if (game.wowScore.y >= 3000) {
						LK.clearInterval(slideDown);
					}
				}, 1000 / 900);
			}, 1500);
		}
	}, 1000 / 900);
};
game.on('down', function (x, y, obj) {
	paddle.reverseDirection();
	// Play the 'Paddle' sound when the paddle switches direction
	LK.getSound('Paddle').play();
});

===================================================================
--- original.js
+++ change.js
@@ -284,8 +284,9 @@
 var ball = game.addChild(new Ball(arenaCircle.radius, paddle, game));
 ball.reset();
 game.addChild(coin);
 var isGameOver = false;
+LK.playMusic('Background');
 LK.on('tick', function () {
 	paddle._move_migrated();
 	ball._move_migrated(arenaCircle);
 });