var Coal = Container.expand(function () {
	var self = Container.call(this);
	var coalGraphics = self.createAsset('coal', 'Coal Graphics', .5, .5);
	self.speed = 7;
	self.move = function () {
		self.speed += 0.6;
		self.y += self.speed;
	};
});
var Paddle = Container.expand(function () {
	var self = Container.call(this);
	var paddleGraphics = self.createAsset('paddle', 'Paddle Graphics', .5, 1);
	self.speed = 20;
	self.move = function () {
		if (self.x - paddleGraphics.width / 2 <= 0) {
			self.x = paddleGraphics.width / 2;
			self.speed = Math.abs(self.speed);
		} else if (self.x + paddleGraphics.width / 2 >= 2048) {
			self.x = 2048 - paddleGraphics.width / 2;
			self.speed = -Math.abs(self.speed);
		}
		self.speed += self.speed > 0 ? 0.05 : -0.05;
		self.speed = Math.min(Math.max(self.speed, -50), 50);
		self.x += self.speed;
	};
});
var Gift = Container.expand(function () {
	var self = Container.call(this);
	var giftGraphics = self.createAsset('gift', 'Gift Graphics', .5, .5);
	self.speed = 7;
	self.move = function () {
		self.speed += 0.6;
		self.y += self.speed;
	};
});
var Santa = Container.expand(function () {
	var self = Container.call(this);
	var santaGraphics = self.createAsset('santa', 'Santa Graphics', .5, .5);
	self.speed = 10;
	var santaTickOffset = 0;
	self.move = function () {
		if (self.x + santaGraphics.width / 2 >= 2048) {
			santaGraphics.scale.x = -1;
			self.x = 2048 - santaGraphics.width / 2;
			self.speed = -Math.abs(self.speed);
		} else if (self.x - santaGraphics.width / 2 <= 0) {
			santaGraphics.scale.x = 1;
			self.x = santaGraphics.width / 2;
			self.speed = Math.abs(self.speed);
		}
		self.x += self.speed;
		if (++santaTickOffset % 30 == 0) {
			self.speed *= -1;
		}
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var background = self.createAsset('background', 'Game Background', 0, 0);
	background.width = 2048;
	background.height = 2732;
	self.addChildAt(background, 0);
	var paddle = self.addChild(new Paddle());
	self.on('down', function (obj) {
		paddle.speed = paddle.speed > 0 ? -25 : 25;
	});
	paddle.x = 2048 / 2;
	paddle.y = 2732 - paddle.height + 450;
	var gifts = [];
	var santa;
	var tickOffset = 0;
	var santaTickOffset = 0;
	var tickOffset = 0;
	var santaTickOffset = 0;
	var isGameOver = false;
	LK.on('tick', function () {
		if (santa && santa.move) {
			santa.move();
		}
		if (isGameOver) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		for (var a = gifts.length - 1; a >= 0; a--) {
			if (gifts[a]) {
				gifts[a].move();
				if (gifts[a].y > 2732) {
					gifts[a].destroy();
					gifts.splice(a, 1);
				} else if (gifts[a].intersects(paddle)) {
					if (gifts[a] instanceof Gift) {
						gifts[a].destroy();
						gifts.splice(a, 1);
					} else if (gifts[a] instanceof Coal) {
						gifts[a].destroy();
						gifts.splice(a, 1);
						isGameOver = true;
					}
				}
			}
		}
		paddle.move();
		if (tickOffset++ % 60 == 0) {
			if (santa && santa.y < 2732 / 3.5) {
				santa.y += 5;
			}
			var newObject;
			if (tickOffset == 1) {
				newObject = new Gift();
			} else {
				newObject = Math.random() < 0.5 ? new Gift() : new Coal();
			}
			newObject.x = santa ? santa.x : 2048 / 2;
			newObject.y = santa ? santa.y : 300;
			gifts.push(newObject);
			if (santa && self.children.includes(santa)) {
				self.addChildAt(newObject, self.getChildIndex(santa));
				if (newObject instanceof Gift) {
					var hoAsset = self.createAsset('HO', 'HO Graphic', .5, 1);
					hoAsset.x = santa.x;
					hoAsset.y = santa.y - santa.height / 2 + 100;
					self.addChild(hoAsset);
					LK.setTimeout(function () {
						hoAsset.destroy();
					}, 600);
				}
			} else {
				self.addChild(newObject);
			}
		}
		if (tickOffset % 30 == 0 && santa) {
			santa.speed *= -1;
		}
		if (!santa) {
			santa = self.addChild(new Santa());
			santa.x = 2048 / 2;
			santa.y = 300;
		}
	});
});