var HoopRim = Container.expand(function () {
	var self = Container.call(this);
	var hoopRimGraphics = LK.getAsset('hoopRimSeparate', 'Basketball Hoop Rim Separate', .5, .5);
	self.addChild(hoopRimGraphics);
});
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = LK.getAsset('ball', 'Basketball', .5, .5);
	self.addChild(ballGraphics);
	self.speed = {
		x: 0,
		y: 0
	};
	self.move = function () {
		self.speed.y += 3.2;
		self.x += self.speed.x;
		self.y += self.speed.y;
		self.rotation += self.speed.x * 0.01;
	};
	self.bounceOffPoint = function (x, y, elasticity) {
		var dx = self.x - x;
		var dy = self.y - y;
		var angle = Math.atan2(dy, dx);
		var speed = Math.sqrt(self.speed.x * self.speed.x + self.speed.y * self.speed.y);
		self.speed.x = Math.cos(angle) * speed * elasticity;
		self.speed.y = Math.sin(angle) * speed * elasticity;
	};
	self.angleTo = function (x, y) {
		var dx = self.x - x;
		var dy = self.y - y;
		return Math.atan2(dy, dx);
	};
	self.distanceTo = function (x, y) {
		var dx = self.x - x;
		var dy = self.y - y;
		return Math.sqrt(dx * dx + dy * dy);
	};
	self.moveToDistance = function (x, y, distance) {
		var angle = self.angleTo(x, y);
		self.x = x + Math.cos(angle) * (distance * 1.05);
		self.y = y + Math.sin(angle) * (distance * 1.05);
	};
});
var Hoop = Container.expand(function () {
	var self = Container.call(this);
	self.moveTo = function (newX, newY, hoopRim) {
		var dx = (newX - self.x) / 60;
		var dy = (newY - self.y) / 60;
		var steps = 0;
		var interval = LK.setInterval(function () {
			self.x += dx;
			self.y += dy;
			hoopRim.x = self.x;
			hoopRim.y = self.y + self.children[1].y - 100;
			steps++;
			if (steps >= 60) {
				LK.clearInterval(interval);
			}
		});
	};
	var backboardGraphics = LK.getAsset('backboard', 'Basketball Backboard', .5, .5);
	backboardGraphics.y -= 250;
	self.addChild(backboardGraphics);
	self.hoopRimGraphics = LK.getAsset('hoopRim', 'Basketball Hoop Rim', .5, .5);
	self.hoopRimGraphics.y = backboardGraphics.height / 2 - 550 + 20 + 120 + 100;
	self.hoopRimGraphics.alpha = 0;
	self.addChild(self.hoopRimGraphics);
	self.leftElement = LK.getAsset('leftElement', 'Left Side Element', .5, .5);
	self.leftElement.x = self.hoopRimGraphics.x - self.hoopRimGraphics.width / 2 + self.leftElement.width / 2;
	self.leftElement.y = self.hoopRimGraphics.y - 100;
	self.leftElement.alpha = 0;
	self.addChild(self.leftElement);
	self.rightElement = LK.getAsset('rightElement', 'Right Side Element', .5, .5);
	self.rightElement.x = self.hoopRimGraphics.x + self.hoopRimGraphics.width / 2 - self.rightElement.width / 2;
	self.rightElement.y = self.hoopRimGraphics.y - 100;
	self.rightElement.alpha = 0;
	self.addChild(self.rightElement);
	self.multiplierLabel = new Text2('', {
		size: 150 * 1.3,
		fill: '#9f4a2d',
		font: 'Impact'
	});
	self.multiplierLabel.anchor.set(.5, .5);
	self.multiplierLabel.x = self.hoopRimGraphics.x;
	self.multiplierLabel.y = self.hoopRimGraphics.y - 250 + 20;
	self.addChild(self.multiplierLabel);
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var gameTimer = 30;
	var timerTxt = new Text2(gameTimer.toString(), {
		size: 150,
		fill: '#ffffff',
		font: 'Impact',
		dropShadow: true,
		dropShadowColor: '#000000',
		dropShadowBlur: 4,
		dropShadowAngle: Math.PI / 6,
		dropShadowDistance: 6
	});
	timerTxt.anchor.set(.5, 0);
	LK.gui.topRight.addChild(timerTxt);
	var timerInterval = LK.setInterval(function () {
		gameTimer--;
		timerTxt.setText(gameTimer.toString());
		if (gameTimer <= 0) {
			LK.clearInterval(timerInterval);
			LK.showGameOver();
		}
	}, 1000);
	var bg = LK.getAsset('background', 'Background Image', 0.5, 0.5);
	bg.x = 2048 / 2;
	bg.y = 2732 / 2 + 150;
	bg.alpha = 0.7;
	self.addChild(bg);
	var hoop = self.addChild(new Hoop());
	var score = 0;
	var scoreMultiplier = 1;
	var scoreTxt = new Text2(score.toString(), {
		size: 150,
		fill: '#ffffff',
		font: 'Impact',
		dropShadow: true,
		dropShadowColor: '#000000',
		dropShadowBlur: 4,
		dropShadowAngle: Math.PI / 6,
		dropShadowDistance: 6
	});
	scoreTxt.anchor.set(.5, 0);
	LK.gui.topCenter.addChild(scoreTxt);
	var ballShadow = LK.getAsset('ballShadow', 'Ball Shadow', .5, .5);
	ballShadow.alpha = 0.5;
	ballShadow.y = 2480;
	self.addChild(ballShadow);
	var ball = self.addChild(new Ball());
	var hoopRim = self.addChild(new HoopRim());
	ball.hasScored = false;
	ball.hasThrown = false;
	ball.hitElement = '';
	hoop.x = 2048 / 2;
	hoop.y = 2732 / 2;
	hoopRim.x = hoop.x;
	hoopRim.y = hoop.y + hoop.children[1].y - 100;
	ball.x = 2048 / 2;
	ball.on('down', function (obj) {
		var event = obj.event;
		dragStart = event.getLocalPosition(self);
	});
	var dragStart = null;
	stage.on('move', function (obj) {
		var event = obj.event;
		var pos = event.getLocalPosition(self);
		if (dragStart !== null && ball.distanceTo(pos.x, pos.y) > 200) {
			self.fireBall(obj);
		}
	});
	self.fireBall = function (obj) {
		if (dragStart !== null) {
			var event = obj.event;
			var pos = event.getLocalPosition(self);
			var dx = pos.x - dragStart.x;
			var dy = pos.y - dragStart.y;
			var angle = Math.atan2(dy, dx);
			ball.speed.x = Math.cos(angle) * 72 * 1.76 * 0.9 / 3;
			ball.speed.y = Math.sin(angle) * 72 * 1.76 * 0.9;
			ball.hasThrown = true;
			ball.hitElement = '';
			self.removeChild(ball);
			self.addChild(ball);
			dragStart = null;
		}
	};
	stage.on('up', function (obj) {
		self.fireBall(obj);
	});
	var floorY = 2732 - 100;
	ball.y = floorY - ball.height;
	LK.on('tick', function () {
		ball.move();
		if (ball.x < 0 || ball.x > 2048 || ball.y < 0 || ball.y > 2732) {
			ball.x = 2048 / 2;
			ball.y = 2732 - ball.height;
			ball.speed.x = 0;
			ball.speed.y = 0;
			ball.hasThrown = false;
		}
		ballShadow.x = ball.x;
		var scale = 1 - 2 * (ball.y - 2732 + ball.height) / 2732;
		ballShadow.scale.set(scale);
		ballShadow.alpha = (1 - scale + 1) / 2;
		if (ball.y + ball.height > floorY) {
			ball.y = floorY - ball.height;
			ball.speed.y *= -0.75;
			ballShadow.x = ball.x;
			ballShadow.visible = true;
			if (ball.hasScored) {
				ball.x = 2048 / 2;
				ball.y = 2732 - ball.height;
				ball.speed.x = 0;
				ball.speed.y = 0;
				ball.hasThrown = false;
				ball.hasScored = false;
				if (ball.hitElement === '') {
					if (scoreMultiplier < 3) {
						scoreMultiplier++;
					}
				} else {
					scoreMultiplier = 1;
				}
				if (scoreMultiplier > 1) {
					hoop.multiplierLabel.setText('x' + scoreMultiplier);
				} else {
					hoop.multiplierLabel.setText('');
				}
				ball.hitElement = '';
				hoop.moveTo(Math.random() * (2048 - 1000) + 500, Math.random() * (2732 - 2000) + 1000, hoopRim);
			}
		}
		if (ball.intersects(hoop.hoopRimGraphics) && ball.speed.y > 0 && !ball.hasScored && ball.x > hoop.x + hoop.leftElement.x && ball.x < hoop.x + hoop.rightElement.x) {
			ball.hasScored = true;
			score += scoreMultiplier;
			scoreTxt.setText(score.toString());
		}
		if (ball.speed.y > 0) {
			self.removeChild(hoopRim);
			self.addChild(hoopRim);
			if (ball.distanceTo(hoop.x + hoop.leftElement.x, hoop.y + hoop.leftElement.y) < ball.width / 2 + hoop.leftElement.width / 2) {
				ball.moveToDistance(hoop.x + hoop.leftElement.x, hoop.y + hoop.leftElement.y, ball.width / 2 + hoop.leftElement.width / 2 + 1);
				ball.bounceOffPoint(hoop.x + hoop.leftElement.x, hoop.y + hoop.leftElement.y, 0.5);
				ball.hitElement = 'left';
			}
			if (ball.distanceTo(hoop.x + hoop.rightElement.x, hoop.y + hoop.rightElement.y) < ball.width / 2 + hoop.rightElement.width / 2) {
				ball.moveToDistance(hoop.x + hoop.rightElement.x, hoop.y + hoop.rightElement.y, ball.width / 2 + hoop.rightElement.width / 2 + 1);
				ball.bounceOffPoint(hoop.x + hoop.rightElement.x, hoop.y + hoop.rightElement.y, 0.5);
				ball.hitElement = 'right';
			}
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -176,8 +176,15 @@
 	var floorY = 2732 - 100;
 	ball.y = floorY - ball.height;
 	LK.on('tick', function () {
 		ball.move();
+		if (ball.x < 0 || ball.x > 2048 || ball.y < 0 || ball.y > 2732) {
+			ball.x = 2048 / 2;
+			ball.y = 2732 - ball.height;
+			ball.speed.x = 0;
+			ball.speed.y = 0;
+			ball.hasThrown = false;
+		}
 		ballShadow.x = ball.x;
 		var scale = 1 - 2 * (ball.y - 2732 + ball.height) / 2732;
 		ballShadow.scale.set(scale);
 		ballShadow.alpha = (1 - scale + 1) / 2;