/**** 
* Classes
****/ 
// Alien class
var Alien = Container.expand(function () {
	var self = Container.call(this);
	var alienGraphics = self.attachAsset('alien', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + 50) {
			self.destroy();
			aliens.splice(aliens.indexOf(self), 1);
		}
	};
	self.shoot = function () {
		if (enemyMissiles.length < 4) {
			var missile = new EnemyMissile();
			missile.x = self.x;
			missile.y = self.y + alienGraphics.height / 2;
			enemyMissiles.push(missile);
			game.addChild(missile);
		}
	};
});
// EnemyMissile class
var EnemyMissile = Container.expand(function () {
	var self = Container.call(this);
	var missileGraphics = self.attachAsset('enemyMissile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + 50) {
			self.destroy();
			enemyMissiles.splice(enemyMissiles.indexOf(self), 1);
		}
	};
});
// Assets will be automatically created and loaded based on their usage in the code.
// FighterJet class
var FighterJet = Container.expand(function () {
	var self = Container.call(this);
	var jetGraphics = self.attachAsset('fighterJet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		// Update logic for the fighter jet
	};
	self.shoot = function () {
		if (heroMissiles.length < 4) {
			var missile = new HeroMissile();
			missile.x = self.x;
			missile.y = self.y - jetGraphics.height / 2;
			heroMissiles.push(missile);
			game.addChild(missile);
		}
	};
});
// HeroMissile class
var HeroMissile = Container.expand(function () {
	var self = Container.call(this);
	var missileGraphics = self.attachAsset('heroMissile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -15;
	self.update = function () {
		self.y += self.speed;
		if (self.y < -50) {
			self.destroy();
			heroMissiles.splice(heroMissiles.indexOf(self), 1);
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Init game with black background
});

/**** 
* Game Code
****/ 
// Initialize score
var score = 0;
// Initialize score text
var scoreTxt = new Text2(score.toString(), {
	size: 50,
	fill: "#ffffff"
});
scoreTxt.x = 20;
scoreTxt.y = 20;
LK.gui.top.addChild(scoreTxt);
var fighterJet = game.addChild(new FighterJet());
fighterJet.x = 2048 / 2;
fighterJet.y = 2732 - 200;
var heroMissiles = [];
var aliens = [];
var enemyMissiles = [];
// Handle game move events
game.move = function (x, y, obj) {
	fighterJet.x = x;
	fighterJet.y = y;
};
// Handle game down events
game.down = function (x, y, obj) {
	fighterJet.shoot();
};
// Game update loop
game.update = function () {
	// Update all missiles
	heroMissiles.forEach(function (missile) {
		missile.update();
	});
	enemyMissiles.forEach(function (missile) {
		missile.update();
	});
	// Update all aliens
	aliens.forEach(function (alien) {
		alien.update();
		if (Math.random() < 0.01) {
			alien.shoot();
		}
		// Check for collision between fighterJet and alien
		if (fighterJet.intersects(alien)) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	});
	// Check for collision between fighterJet and enemyMissiles
	enemyMissiles.forEach(function (missile) {
		if (fighterJet.intersects(missile)) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	});
	// Check for collision between heroMissiles and aliens or enemyMissiles
	heroMissiles.forEach(function (heroMissile) {
		aliens.forEach(function (alien) {
			if (heroMissile.intersects(alien)) {
				LK.effects.flashObject(alien, 0xff0000, 1000);
				alien.destroy();
				aliens.splice(aliens.indexOf(alien), 1);
				// Add explosion effect for heroMissile
				LK.effects.flashObject(heroMissile, 0xff0000, 1000);
				heroMissile.destroy();
				heroMissiles.splice(heroMissiles.indexOf(heroMissile), 1);
				// Update score
				score += 150;
				scoreTxt.setText(score.toString());
			}
		});
		enemyMissiles.forEach(function (enemyMissile) {
			if (heroMissile.intersects(enemyMissile)) {
				LK.effects.flashObject(enemyMissile, 0xff0000, 1000);
				enemyMissile.destroy();
				enemyMissiles.splice(enemyMissiles.indexOf(enemyMissile), 1);
				// Add explosion effect for heroMissile
				LK.effects.flashObject(heroMissile, 0xff0000, 1000);
				heroMissile.destroy();
				heroMissiles.splice(heroMissiles.indexOf(heroMissile), 1);
				// Update score
				score += 50;
				scoreTxt.setText(score.toString());
			}
		});
	});
	// Spawn new aliens
	if (LK.ticks % 60 == 0) {
		var alien = new Alien();
		alien.x = Math.random() * 2048;
		alien.y = -50;
		aliens.push(alien);
		game.addChild(alien);
	}
};