/**** 
* Classes
****/ 
// Bullet class for projectiles fired by towers
var Bullet = Container.expand(function (startX, startY, target) {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.target = target;
	self.x = startX;
	self.y = startY;
	self.update = function () {
		var dx = self.target.x - self.x;
		var dy = self.target.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < 10) {
			self.target.hit();
			self.destroy();
		} else {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
});
// Enemy class for the creatures attacking the realm
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.health = 100;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < 0) {
			// Enemy reached the end, game over logic
			LK.showGameOver();
		}
	};
	self.hit = function () {
		self.health -= 50;
		if (self.health <= 0) {
			self.destroy();
			enemies.splice(enemies.indexOf(self), 1);
		}
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Tower class to represent defense towers
var Tower = Container.expand(function () {
	var self = Container.call(this);
	var towerGraphics = self.attachAsset('tower', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.range = 300;
	self.fireRate = 60; // Fire every 60 frames
	self.fireCooldown = 0;
	self.update = function () {
		if (self.fireCooldown > 0) {
			self.fireCooldown--;
		}
	};
	self.canFire = function () {
		return self.fireCooldown === 0;
	};
	self.fire = function (target) {
		if (self.canFire()) {
			var bullet = new Bullet(self.x, self.y, target);
			game.addChild(bullet);
			bullets.push(bullet);
			self.fireCooldown = self.fireRate;
		}
	};
});

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

/**** 
* Game Code
****/ 
// Initialize arrays and variables
var towers = [];
var bullets = [];
var enemies = [];
// Create and position towers
function createTowers() {
	var tower1 = new Tower();
	tower1.x = 500;
	tower1.y = 1366;
	game.addChild(tower1);
	towers.push(tower1);
	var tower2 = new Tower();
	tower2.x = 1500;
	tower2.y = 1366;
	game.addChild(tower2);
	towers.push(tower2);
}
// Spawn enemies at intervals
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = 2048;
	enemy.y = Math.random() * 2732;
	game.addChild(enemy);
	enemies.push(enemy);
}
// Game update loop
game.update = function () {
	// Update towers
	towers.forEach(function (tower) {
		tower.update();
		enemies.forEach(function (enemy) {
			if (tower.canFire() && Math.abs(tower.x - enemy.x) < tower.range) {
				tower.fire(enemy);
			}
		});
	});
	// Update bullets
	bullets.forEach(function (bullet) {
		bullet.update();
	});
	// Update enemies
	enemies.forEach(function (enemy) {
		enemy.update();
	});
	// Spawn enemies every 120 frames
	if (LK.ticks % 120 === 0) {
		spawnEnemy();
	}
};
// Initialize game elements
createTowers();

===================================================================
--- original.js
+++ change.js
@@ -82,9 +82,9 @@
 /**** 
 * Initialize Game
 ****/ 
 var game = new LK.Game({
-	backgroundImage: 'green_meadow'
+	backgroundImage: 'background'
 });
 
 /**** 
 * Game Code