function reflectBall(ball, hitSide) {
	if (hitSide === 'left' || hitSide === 'right') {
		ball.vx *= -1.5;
	} else if (hitSide === 'top' || hitSide === 'bottom') {
		ball.vy *= -1.5;
	}
}
function determineHitSide(ballBounds, batBounds) {
	var dx = ballBounds.x - batBounds.x;
	var dy = ballBounds.y - batBounds.y;
	if (Math.abs(dx) > Math.abs(dy)) {
		return dx < 0 ? 'left' : 'right';
	} else {
		return dy < 0 ? 'top' : 'bottom';
	}
}
var ParticleExplosion = Container.expand(function (color) {
	var self = Container.call(this);
	self.particles = [];
	for (var i = 0; i < 10; i++) {
		var particle = self.createAsset('particle_' + color, color + ' Particle Graphics', 0.5, 0.5);
		particle.vx = (Math.random() - 0.5) * 10;
		particle.vy = (Math.random() - 0.5) * 10;
		self.particles.push(particle);
		self.addChild(particle);
	}
	self.update = function () {
		for (var i = self.particles.length - 1; i >= 0; i--) {
			var p = self.particles[i];
			p.x += p.vx;
			p.y += p.vy;
			p.alpha -= 0.05;
			if (p.alpha <= 0) {
				p.destroy();
				self.particles.splice(i, 1);
			}
		}
		if (self.particles.length === 0) {
			self.destroy();
		}
	};
});
var Score = Container.expand(function () {
	var self = Container.call(this);
	var scoreValue = 0;
	var scoreText = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	scoreText.anchor.set(0.5, 0);
	self.addChild(scoreText);
	self.x = 2048 - scoreText.width / 2 - 20;
	self.y = 20;
	self.increaseScore = function (points) {
		scoreValue += points;
		scoreText.setText(scoreValue.toString());
	};
});
var ColoredBall = Container.expand(function (color) {
	var self = Container.call(this);
	self.lastHitTime = 0;
	self.color = color;
	var ballGraphics = self.createAsset('ball_' + color, color + ' Ball Graphics', .5, .5);
	self.speed = 15;
	var angle = Math.random() * 360;
	angle += angle % 90 < 7 ? 7 : 0;
	self.vx = self.speed * Math.cos(angle * Math.PI / 180);
	self.vy = self.speed * Math.sin(angle * Math.PI / 180);
	self.move = function () {
		self.x += self.vx;
		self.y += self.vy;
		if (self.x <= 0 || self.x >= 2048) self.vx *= -1;
		if (self.y <= 0 || self.y >= 2732) self.vy *= -1;
		self.vx += (self.vx > 0 ? -0.1 : 0.1) * (Math.abs(self.vx) > self.speed ? 1 : 0);
		self.vy += (self.vy > 0 ? -0.1 : 0.1) * (Math.abs(self.vy) > self.speed ? 1 : 0);
	};
	self.reset = function () {};
});
var Bat = Container.expand(function () {
	var self = Container.call(this);
	var batGraphics = self.createAsset('bat', 'Bat Graphics', .5, .5);
	batGraphics.scale.set(2);
	self.move = function () {};
});
var RedGoal = Container.expand(function () {
	var self = Container.call(this);
	var goalGraphics = self.createAsset('goal_red', 'Red Goal Graphics', .5, .5);
	self.checkScore = function (ball, score) {
		if (this.intersects(ball)) {
			if (ball.color === 'red') {
				score.increaseScore(1);
				var explosion = new ParticleExplosion('red');
				explosion.x = ball.x;
				explosion.y = ball.y;
				self.parent.addChild(explosion);
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			} else {
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			}
		}
	};
});
var BlueGoal = Container.expand(function () {
	var self = Container.call(this);
	var goalGraphics = self.createAsset('goal_blue', 'Blue Goal Graphics', .5, .5);
	self.checkScore = function (ball, score) {
		if (this.intersects(ball)) {
			if (ball.color === 'blue') {
				score.increaseScore(1);
				var explosion = new ParticleExplosion('blue');
				explosion.x = ball.x;
				explosion.y = ball.y;
				self.parent.addChild(explosion);
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			} else {
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			}
		}
	};
});
var GreenGoal = Container.expand(function () {
	var self = Container.call(this);
	var goalGraphics = self.createAsset('goal_green', 'Green Goal Graphics', .5, .5);
	self.checkScore = function (ball, score) {
		if (this.intersects(ball)) {
			if (ball.color === 'green') {
				score.increaseScore(1);
				var explosion = new ParticleExplosion('green');
				explosion.x = ball.x;
				explosion.y = ball.y;
				self.parent.addChild(explosion);
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			} else {
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			}
		}
	};
});
var YellowGoal = Container.expand(function () {
	var self = Container.call(this);
	var goalGraphics = self.createAsset('goal_yellow', 'Yellow Goal Graphics', .5, .5);
	self.checkScore = function (ball, score) {
		if (this.intersects(ball)) {
			if (ball.color === 'yellow') {
				score.increaseScore(1);
				var explosion = new ParticleExplosion('yellow');
				explosion.x = ball.x;
				explosion.y = ball.y;
				self.parent.addChild(explosion);
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			} else {
				ball.destroy();
				self.parent.balls.splice(self.parent.balls.indexOf(ball), 1);
			}
		}
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	this.balls = [];
	var goals = [];
	var bat = null;
	function setup() {
		var redGoal = self.addChild(new RedGoal());
		var redGoal = self.addChild(new RedGoal());
		redGoal.x = 2048 / 2 - redGoal.width / 2;
		redGoal.y = redGoal.height / 2;
		var blueGoal = self.addChild(new BlueGoal());
		blueGoal.x = 2048 / 2;
		blueGoal.y = 2732 - blueGoal.height;
		var greenGoal = self.addChild(new GreenGoal());
		greenGoal.x = 0;
		greenGoal.y = 2732 / 2;
		var yellowGoal = self.addChild(new YellowGoal());
		yellowGoal.x = 2048 - yellowGoal.width;
		yellowGoal.y = 2732 / 2;
		goals.push(redGoal, blueGoal, greenGoal, yellowGoal);
		bat = self.addChild(new Bat());
		bat.x = 2048 / 2;
		bat.y = 2732 - 100;
		var colors = ['red', 'blue', 'green', 'yellow'];
		LK.setInterval(function () {
			if (self.balls.length < 20) {
				var colorIndex = Math.floor(Math.random() * colors.length);
				var newBall = new ColoredBall(colors[colorIndex]);
				newBall.x = 200 + Math.random() * (2048 - 400);
				newBall.y = 200 + Math.random() * (2732 - 400);
				self.balls.push(newBall);
				self.addChild(newBall);
			}
		}, 2000);
	}
	function reset() {
		for (var i = 0; i < self.balls.length; i++) {
			balls[i].reset();
		}
	}
	LK.on('tick', function () {
		for (var i = 0; i < self.balls.length; i++) {
			self.balls[i].move();
			var currentTime = LK.ticks;
			if (currentTime - self.balls[i].lastHitTime > 30) {
				var ballBounds = self.balls[i];
				var batBounds = bat;
				if (batBounds.intersects(ballBounds)) {
					self.balls[i].lastHitTime = currentTime;
					var hitSide = determineHitSide(ballBounds, batBounds);
					reflectBall(self.balls[i], hitSide);
				}
			}
		}
		for (var i = 0; i < self.balls.length; i++) {
			for (var j = 0; j < goals.length; j++) {
				goals[j].checkScore(self.balls[i], scoreInstance);
			}
		}
		for (var i = self.children.length - 1; i >= 0; i--) {
			if (self.children[i] instanceof ParticleExplosion) {
				self.children[i].update();
			}
		}
	});
	stage.on('move', function (obj) {
		var pos = obj.event.getLocalPosition(self);
		bat.x = pos.x;
		bat.y = pos.y;
	});
	var countdownTime = 60;
	var countdownClock = new Text2(countdownTime.toString(), {
		size: 150,
		fill: "#ffffff"
	});
	countdownClock.anchor.set(0.5, 0);
	LK.gui.topCenter.addChild(countdownClock);
	var scoreInstance = new Score();
	scoreInstance.name = 'scoreInstance';
	self.addChild(scoreInstance);
	var countdownInterval = LK.setInterval(function () {
		countdownTime--;
		countdownClock.setText(countdownTime.toString());
		if (countdownTime <= 0) {
			LK.clearInterval(countdownInterval);
		}
	}, 1000);
	setup();
});