var Gift = Container.expand(function () {
	var self = Container.call(this);
	var giftGraphics = self.createAsset('gift', 'Gift Graphics', .5, .5);
	self.speed = 5;
	self.move = function () {
		self.y += self.speed;
	};
});
var Asteroid = Container.expand(function () {
	var self = Container.call(this);
	var asteroidGraphics = self.createAsset('asteroid', 'Asteroid Graphics', .5, .5);
	self.speed = 7;
	self.move = function () {
		self.y += self.speed;
	};
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.createAsset('player', 'Player Graphics', .5, .5);
	self.speed = 10;
	self.hearts = 3;
	self.move = function (x, y) {
		self.x = x;
		self.y = y;
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var background = self.createAsset('festiveBackground', 'Festive Background', 0, 0);
	self.addChildAt(background, 0);
	var gifts = [];
	var asteroids = [];
	var player = self.addChild(new Player());
	player.x = 2048 / 2;
	player.y = 2732 / 2;
	var scoreTxt = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	var heartsTxt = new Text2('Hearts: 3', {
		size: 100,
		fill: "#ffffff"
	});
	LK.setScore(0);
	scoreTxt.setText(0);
	scoreTxt.anchor.set(.5, 0);
	heartsTxt.anchor.set(0, 0);
	heartsTxt.x = scoreTxt.width + 20;
	LK.gui.topCenter.addChild(scoreTxt);
	LK.gui.topCenter.addChild(heartsTxt);
	var dragNode = null;
	player.on('down', function (obj) {
		dragNode = player;
	});
	function handleMove(obj) {
		var event = obj.event;
		var pos = event.getLocalPosition(self);
		if (dragNode) {
			dragNode.move(pos.x, pos.y);
		}
	}
	stage.on('move', handleMove);
	stage.on('up', function (obj) {
		dragNode = null;
	});
	LK.on('tick', function () {
		for (var a = gifts.length - 1; a >= 0; a--) {
			gifts[a].move();
			if (gifts[a].y > 2732) {
				gifts[a].destroy();
				gifts.splice(a, 1);
			} else if (player.intersects(gifts[a])) {
				LK.setScore(LK.getScore() + 10);
				scoreTxt.setText(LK.getScore());
				gifts[a].destroy();
				gifts.splice(a, 1);
			}
		}
		for (var a = asteroids.length - 1; a >= 0; a--) {
			var asteroid = asteroids[a];
			if (asteroid) {
				asteroid.move();
				if (asteroid.y > 2732) {
					asteroid.destroy();
					asteroids.splice(a, 1);
				} else if (player.intersects(asteroid)) {
					player.hearts = Math.max(player.hearts - 1, 0);
					heartsTxt.setText('Hearts: ' + player.hearts);
					if (player.hearts <= 0) {
						LK.showGameOver();
					}
					asteroid.destroy();
					asteroids.splice(a, 1);
				}
			}
		}
		if (LK.ticks % 60 == 0) {
			var newGift = new Gift();
			newGift.x = Math.random() * 2048;
			newGift.y = 0;
			gifts.push(newGift);
			self.addChild(newGift);
		}
		if (LK.ticks % 30 == 0) {
			var newAsteroid = new Asteroid();
			newAsteroid.x = Math.random() * 2048;
			newAsteroid.y = 0;
			asteroids.push(newAsteroid);
			self.addChild(newAsteroid);
		}
	});
});