/**** 
* Classes
****/ 
var Gun = Container.expand(function () {
	var self = Container.call(this);
	var gunGraphics = self.attachAsset('gun', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var muzzleFlash = self.attachAsset('muzzleFlash', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 30,
		y: 0
	});
	muzzleFlash.visible = false;
	self.fire = function () {
		// Show muzzle flash
		muzzleFlash.visible = true;
		LK.getSound('gunShot').play();
		// Hide muzzle flash after brief moment
		LK.setTimeout(function () {
			muzzleFlash.visible = false;
		}, 100);
	};
	return self;
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 1;
	self.gun = self.addChild(new Gun());
	self.gun.x = 30;
	self.gun.y = -10;
	self.aimAt = function (targetX, targetY) {
		var dx = targetX - self.x;
		var dy = targetY - self.y;
		var angle = Math.atan2(dy, dx);
		self.gun.rotation = angle;
		// Update gun position based on rotation to simulate holding it
		var gunOffsetX = Math.cos(angle) * 25;
		var gunOffsetY = Math.sin(angle) * 25;
		self.gun.x = gunOffsetX;
		self.gun.y = gunOffsetY;
	};
	self.shoot = function () {
		self.gun.fire();
	};
	self.update = function () {
		// Keep gun positioned relative to character movement
		// Gun follows character naturally as it's a child of hero
	};
	return self;
});
var Zombie = Container.expand(function () {
	var self = Container.call(this);
	var zombieGraphics = self.attachAsset('zombie', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.targetX = 0;
	self.targetY = 0;
	self.update = function () {
		// Move toward target (hero position)
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
// Game variables
var game = new LK.Game({
	backgroundColor: 0x228B22
});

/**** 
* Game Code
****/ 
// Game variables
var hero;
var zombies = [];
var dragNode = null;
var spawnTimer = 0;
var spawnInterval = 120; // Start spawning every 2 seconds
var gameTime = 0;
var lastHeroX = 0;
var lastHeroY = 0;
// Create score display
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create and position hero at center
hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 / 2;
lastHeroX = hero.x;
lastHeroY = hero.y;
// Spawn zombie at random edge
function spawnZombie() {
	var zombie = new Zombie();
	var edge = Math.floor(Math.random() * 4); // 0=top, 1=right, 2=bottom, 3=left
	switch (edge) {
		case 0:
			// Top
			zombie.x = Math.random() * 2048;
			zombie.y = -30;
			break;
		case 1:
			// Right
			zombie.x = 2048 + 30;
			zombie.y = Math.random() * 2732;
			break;
		case 2:
			// Bottom
			zombie.x = Math.random() * 2048;
			zombie.y = 2732 + 30;
			break;
		case 3:
			// Left
			zombie.x = -30;
			zombie.y = Math.random() * 2732;
			break;
	}
	zombie.targetX = hero.x;
	zombie.targetY = hero.y;
	zombie.speed = 1.5 + gameTime / 1800 + LK.getScore() / 500; // Increase speed over time and score
	zombie.lastIntersecting = false;
	zombies.push(zombie);
	game.addChild(zombie);
}
// Handle dragging
game.down = function (x, y, obj) {
	if (hero.intersects({
		x: x,
		y: y,
		width: 1,
		height: 1
	})) {
		dragNode = hero;
	} else {
		// Aim gun at tap location
		hero.aimAt(x, y);
		// Check if tapping on zombie to destroy it
		for (var i = zombies.length - 1; i >= 0; i--) {
			var zombie = zombies[i];
			var distance = Math.sqrt((x - zombie.x) * (x - zombie.x) + (y - zombie.y) * (y - zombie.y));
			if (distance < 150) {
				// Shoot and destroy zombie
				hero.shoot();
				LK.setScore(LK.getScore() + 10);
				scoreTxt.setText('Score: ' + LK.getScore());
				LK.getSound('zombieHit').play();
				LK.effects.flashObject(zombie, 0xffff00, 200);
				zombie.destroy();
				zombies.splice(i, 1);
				break;
			}
		}
	}
};
game.move = function (x, y, obj) {
	if (dragNode) {
		// Keep hero within screen bounds
		dragNode.x = Math.max(40, Math.min(2048 - 40, x));
		dragNode.y = Math.max(40, Math.min(2732 - 40, y));
	}
	// Always aim gun at current cursor/touch position regardless of dragging
	hero.aimAt(x, y);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Main game loop
game.update = function () {
	gameTime++;
	spawnTimer++;
	// Update hero target for zombies
	if (hero.x !== lastHeroX || hero.y !== lastHeroY) {
		for (var i = 0; i < zombies.length; i++) {
			zombies[i].targetX = hero.x;
			zombies[i].targetY = hero.y;
		}
		lastHeroX = hero.x;
		lastHeroY = hero.y;
	}
	// Spawn zombies with increasing frequency based on score
	var scoreBonus = Math.floor(LK.getScore() / 50); // Every 50 points reduces spawn interval
	var currentSpawnInterval = Math.max(20, spawnInterval - Math.floor(gameTime / 600) - scoreBonus * 10);
	if (spawnTimer >= currentSpawnInterval) {
		spawnZombie();
		spawnTimer = 0;
	}
	// Update zombies and check collisions
	for (var i = zombies.length - 1; i >= 0; i--) {
		var zombie = zombies[i];
		// Check collision with hero
		var currentIntersecting = zombie.intersects(hero);
		if (!zombie.lastIntersecting && currentIntersecting) {
			// Game over - zombie touched hero
			LK.getSound('gameOverSound').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		zombie.lastIntersecting = currentIntersecting;
		// Remove zombies that are too far off screen
		if (zombie.x < -100 || zombie.x > 2148 || zombie.y < -100 || zombie.y > 2832) {
			zombie.destroy();
			zombies.splice(i, 1);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -81,9 +81,9 @@
 * Initialize Game
 ****/ 
 // Game variables
 var game = new LK.Game({
-	backgroundColor: 0x2d5016
+	backgroundColor: 0x228B22
 });
 
 /**** 
 * Game Code