/**** 
* Classes
****/
var Starfield = Container.expand(function () {
	var self = Container.call(this);
	self.stars = [];
	var numberOfStars = 300;
	for (var i = 0; i < numberOfStars; i++) {
		var star = LK.getAsset('star', 'Star');
		star.anchor.set(0.5, 0.5);
		star.x = Math.random() * game.width;
		star.y = Math.random() * game.height;
		star.speed = Math.random() * 1 + 0.1;
		star.alpha = Math.random() * 0.2 + 0.1;
		star.tint = Math.random() * 0xFFFFFF;
		self.addChild(star);
		self.stars.push(star);
	}
	self.moveStars = function () {
		for (var i = 0; i < self.stars.length; i++) {
			var star = self.stars[i];
			star.y += star.speed;
			if (star.y > game.height) {
				star.y = -30;
			}
		}
	};
});
// Hero ship class
var HeroShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.createAsset('heroShip', 'Cute smiley ship', 0.5, 0.5);
	self.speed = 5;
	self.isShooting = false;
	self.shootingInterval = 30;
	self._shootingCounter = 0;
	self.shoot = function () {
		var bullet = new HeroBullet();
		bullet.x = self.x;
		bullet.y = self.y - self.height / 2;
		game.addChild(bullet);
		return bullet;
	};
});
// Hero bullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('heroBullet', 'Heart bullet', 0.5, 1);
	self.speed = -10;
	self.move = function () {
		self.y += self.speed;
	};
});
// Enemy ship class
var EnemyShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.createAsset('enemyShip', 'Evil smiley', 0.5, 0.5);
	self.speed = 2;
	self.move = function () {
		self.y += self.speed;
	};
});
// Enemy ship class
var EnemyBossShip = Container.expand(function () {
	var self = Container.call(this);
	var shipGraphics = self.createAsset('enemyBossShip', 'Evil Boss smiley', 0.5, 0.5);
	self.speed = 2;
	self.move = function () {
		self.y += self.speed;
	};
});

/**** 
* Initialize Game
****/
var game = new LK.Game({
	backgroundColor: 0xFEF3BD // Init game with black background
});

/**** 
* Game Code
****/
// Initialize starfield
var starfield = game.addChild(new Starfield());
starfield.x = 0;
starfield.y = 0; // Start off screen

// Initialize important asset arrays and score tracking
var heroBullets = [];
var enemyShips = [];
var currentScore = 0;
var highScore = 0;

// Create hero ship
var heroShip = game.addChild(new HeroShip());
heroShip.x = game.width / 2;
heroShip.y = game.height - 450;

// Create enemies
function spawnEnemyShip(speed) {
	var enemyShip = new EnemyShip();
	enemyShip.speed = speed || Math.random() * 3 + 1; // Default speed if not provided
	enemyShip.x = Math.random() * (game.width - enemyShip.width) + enemyShip.width / 2;
	enemyShip.y = -enemyShip.height / 2;
	game.addChild(enemyShip);
	enemyShips.push(enemyShip);
}

// Game tick event
LK.on('tick', function () {
	// Move the starfield
	starfield.moveStars();

	// Move hero bullets
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var bullet = heroBullets[i];
		bullet.move();
		if (bullet.y < -bullet.height) {
			bullet.destroy();
			heroBullets.splice(i, 1);
		} else {
			// Check collision with enemies
			for (var j = enemyShips.length - 1; j >= 0; j--) {
				if (bullet.intersects(enemyShips[j])) {
					bullet.destroy();
					enemyShips[j].destroy();
					heroBullets.splice(i, 1);
					enemyShips.splice(j, 1);
					break;
				}
			}
		}
	}

	// Move enemy ships
	for (var i = enemyShips.length - 1; i >= 0; i--) {
		var enemy = enemyShips[i];
		enemy.move();
		if (enemy.y > game.height + enemy.height / 2) {
			enemy.destroy();
			enemyShips.splice(i, 1);
		}
	}

	// Shoot bullets
	if (heroShip._shootingCounter % heroShip.shootingInterval == 0) {
		if (heroShip.isShooting) {
			heroBullets.push(heroShip.shoot());
			heroShip._shootingCounter = 0;
		}
	}
	heroShip._shootingCounter += 1;
});
// Function to randomly spawn enemy ships
function randomSpawnEnemyShip() {
	var minSpawnDelay = 1000; // 1 second
	var maxSpawnDelay = 3000; // 3 seconds
	var spawnDelay = Math.random() * (maxSpawnDelay - minSpawnDelay) + minSpawnDelay;
	LK.setTimeout(function () {
		spawnEnemyShip();
		randomSpawnEnemyShip(); // Schedule next spawn
	}, spawnDelay);
}
randomSpawnEnemyShip(); // Start the spawning process

// Touch controls to make heroShip follow the pointer
game.on('move', function (obj) {
	var touchPos = obj.event.getLocalPosition(game);
	heroShip.x = touchPos.x;
});
game.on('down', function (obj) {
	heroShip._shootingCounter = 0;
	heroShip.isShooting = true;
});
game.on('up', function (obj) {
	heroShip.isShooting = false;
});

===================================================================
--- original.js
+++ change.js
@@ -84,11 +84,13 @@
 var starfield = game.addChild(new Starfield());
 starfield.x = 0;
 starfield.y = 0; // Start off screen
 
-// Initialize important asset arrays
+// Initialize important asset arrays and score tracking
 var heroBullets = [];
 var enemyShips = [];
+var currentScore = 0;
+var highScore = 0;
 
 // Create hero ship
 var heroShip = game.addChild(new HeroShip());
 heroShip.x = game.width / 2;