/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics;
	if (Math.random() > 0.5) {
		bulletGraphics = self.attachAsset('bullet1', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	} else {
		bulletGraphics = self.attachAsset('bullet2', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
	self.speed = -10;
	self.direction = 45; // Add direction variable
	self.update = function () {
		self.y += self.speed * Math.cos(self.direction); // Update y position based on speed and direction
		self.x += self.speed * Math.sin(self.direction); // Update x position based on speed and direction
	};
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.shoot = function () {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y - 50;
		bullet.direction = 0;
		bullets.push(bullet);
		game.addChild(bullet);
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += 2;
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Spaceship class
var Spaceship = Container.expand(function () {
	var self = Container.call(this);
	var spaceshipGraphics = self.attachAsset('spaceship', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundImage: 'background' //Set the background image
});

/**** 
* Game Code
****/ 
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2500;
// Initialize arrays
var spaceships = [];
var bullets = [];
var powerUps = [];
// Initialize powerup level
var powerUpLevel = 0;
// Game update function
game.update = function () {
	// Update spaceships
	for (var i = spaceships.length - 1; i >= 0; i--) {
		var spaceship = spaceships[i];
		spaceship.update();
		if (spaceship.y > 2732) {
			spaceship.destroy();
			spaceships.splice(i, 1);
		}
	}
	// Update bullets
	for (var j = bullets.length - 1; j >= 0; j--) {
		var bullet = bullets[j];
		bullet.update();
		if (bullet.y < 0) {
			bullet.destroy();
			bullets.splice(j, 1);
		}
	}
	// Update power-ups
	for (var k = powerUps.length - 1; k >= 0; k--) {
		var powerUp = powerUps[k];
		powerUp.update();
		if (powerUp.y > 2732) {
			powerUp.destroy();
			powerUps.splice(k, 1);
		}
	}
	// Check for collisions
	checkCollisions();
};
// Function to check for collisions
function checkCollisions() {
	// Check bullet and spaceship collisions
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		for (var j = spaceships.length - 1; j >= 0; j--) {
			var spaceship = spaceships[j];
			if (bullet.intersects(spaceship)) {
				bullet.destroy();
				spaceship.destroy();
				bullets.splice(i, 1);
				spaceships.splice(j, 1);
				break;
			}
		}
	}
	// Check player and power-up collisions
	for (var k = powerUps.length - 1; k >= 0; k--) {
		var powerUp = powerUps[k];
		if (player.intersects(powerUp)) {
			powerUp.destroy();
			powerUps.splice(k, 1);
			// Upgrade player's gun
		}
		;
	}
}
// Function to spawn spaceships
function spawnSpaceships() {
	var spaceship = new Spaceship();
	spaceship.x = Math.random() * 2048;
	spaceship.y = -50;
	spaceships.push(spaceship);
	game.addChild(spaceship);
}
// Function to spawn power-ups
function spawnPowerUp() {
	var powerUp = new PowerUp();
	powerUp.x = Math.random() * 2048;
	powerUp.y = -50;
	powerUps.push(powerUp);
	game.addChild(powerUp);
}
// Set intervals for spawning
LK.setInterval(spawnSpaceships, 1000);
LK.setInterval(spawnPowerUp, 10000);
// Player controls
game.down = function (x, y, obj) {
	player.x = x;
	player.y = y;
};
game.move = function (x, y, obj) {
	player.x = x;
	player.y = y;
};
game.up = function (x, y, obj) {
	player.shoot();
};

===================================================================
--- original.js
+++ change.js
@@ -68,9 +68,9 @@
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000 //Init game with black background 
+	backgroundImage: 'background' //Set the background image
 });
 
 /**** 
 * Game Code