var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('heroBullet', 'Hero Bullet Graphics', .5, .5);
	self.speed = -5;
	self.move = function () {
		self.x += self.speed;
	};
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('enemyBullet', 'Enemy Bullet Graphics', .5, .5);
	self.speed = 5;
	self.move = function () {
		self.x += self.speed;
	};
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.createAsset('hero', 'Hero character', .5, .5);
	self.knockback = function () {
		self.x -= 10;
	};
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemy', 'Enemy character', .5, .5);
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	LK.stageContainer.setBackgroundColor(0x000000);
	var hero = self.addChild(new Hero());
	var enemy = self.addChild(new Enemy());
	hero.x = 1024;
	hero.y = 1366;
	enemy.x = 1024;
	enemy.y = 1366 - 200;
	var heroBullets = [];
	var enemyBullets = [];
	var isGameOver = false;
	var tickOffset = 0;
	LK.on('tick', function () {
		if (isGameOver) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		for (var a = heroBullets.length; a >= 0; a--) {
			heroBullets[a].move();
			if (heroBullets[a].y < -50) {
				heroBullets[a].destroy();
				heroBullets.splice(a, 1);
			}
		}
		for (var a = enemyBullets.length; a >= 0; a--) {
			enemyBullets[a].move();
			if (enemyBullets[a].y > 2732 + 50) {
				enemyBullets[a].destroy();
				enemyBullets.splice(a, 1);
			}
		}
		if (tickOffset++ % 30 == 0) {
			var newBullet = new HeroBullet();
			newBullet.x = hero.x;
			newBullet.y = hero.y;
			heroBullets.push(newBullet);
			self.addChild(newBullet);
			hero.knockback();
		}
	});
});