===================================================================
--- original.js
+++ change.js
@@ -1,21 +1,18 @@
 /**** 
 * Classes
 ****/
-var Torch = Container.expand(function () {
-	var self = Container.call(this);
-	var torchGraphics = self.createAsset('torch', 'Hero torch', 0.5, 0.5);
-	self.update = function () {
-		// Update the torch position to follow the hero
-		self.x = hero.x;
-		self.y = hero.y;
-	};
-});
-// Create and add the torch to the game
 // Define the Hero class
 var Hero = Container.expand(function () {
 	var self = Container.call(this);
 	var heroGraphics = self.createAsset('hero', 'Hero character', 0.5, 0.5);
+	var torchGraphics = self.createAsset('torch', 'Hero torch', 0.5, 0);
+	torchGraphics.visible = false;
+	self.orientTorch = function (mousePos) {
+		var angle = Math.atan2(mousePos.y - self.y, mousePos.x - self.x);
+		torchGraphics.rotation = angle;
+		torchGraphics.visible = true;
+	};
 	self.speed = 5;
 	self.shoot = function () {
 		var bullet = new HeroBullet();
 		bullet.x = self.x;
@@ -39,12 +36,20 @@
 });
 // Define the Zombie class
 var Zombie = Container.expand(function () {
 	var self = Container.call(this);
-	var zombieGraphics = self.createAsset('realisticZombie', 'Realistic Zombie enemy', 0.5, 0.5);
+	var zombieGraphics = self.createAsset('zombie', 'Zombie enemy', 0.5, 0.5);
 	self.speed = 1;
-	self.move = function () {
+	self.move = function (torchPos, torchAngle) {
 		self.y += self.speed;
+		var angleToZombie = Math.atan2(self.y - torchPos.y, self.x - torchPos.x);
+		var angleDifference = Math.abs(torchAngle - angleToZombie);
+		if (angleDifference < 0.5) {
+			// Assuming torch has a cone of visibility of 0.5 radians
+			self.visible = true;
+		} else {
+			self.visible = false;
+		}
 	};
 });
 
 /**** 
@@ -56,20 +61,9 @@
 
 /**** 
 * Game Code
 ****/
-// Create and add the torch to the game
 // Initialize important asset arrays
-var torch = game.addChild(new Torch());
-// Removed document keydown event listener and replaced with touch controls
-// Touch controls will be implemented in the game's tick event
-// Add keyboard event listener for hero shooting
-// Space bar key code is 32
-document.addEventListener('keydown', function (event) {
-	if (event.keyCode === 32) {
-		hero.shoot();
-	}
-});
 var bullets = [];
 var zombies = [];
 var hero;
 var isGameOver = false;
@@ -77,10 +71,34 @@
 hero = game.addChild(new Hero());
 hero.x = 2048 / 2;
 hero.y = 2732 - 100; // Position hero near the bottom of the screen
 // Game logic and event handlers
+window.addEventListener('keydown', function (e) {
+	var direction = {
+		x: 0,
+		y: 0
+	};
+	switch (e.keyCode) {
+		case 37:
+			// left arrow
+			direction.x = -1;
+			break;
+		case 39:
+			// right arrow
+			direction.x = 1;
+			break;
+		case 38:
+			// up arrow
+			direction.y = -1;
+			break;
+		case 40:
+			// down arrow
+			direction.y = 1;
+			break;
+	}
+	hero.move(direction);
+});
 LK.on('tick', function () {
-	torch.update();
 	if (isGameOver) {
 		LK.showGameOver();
 		return;
 	}
@@ -91,18 +109,37 @@
 			bullets[i].destroy();
 			bullets.splice(i, 1);
 		}
 	}
+	// Handle torch orientation and make zombies visible if illuminated
+	var torchPos = {
+		x: hero.x,
+		y: hero.y
+	};
+	var torchAngle = hero.getChildByName('torch').rotation;
 	// Move zombies and check for collision with hero
 	for (var j = zombies.length - 1; j >= 0; j--) {
+		zombies[j].move(torchPos, torchAngle);
+		if (zombies[j].y > 2732) {
+			zombies[j].destroy();
+			zombies.splice(j, 1);
+		} else if (zombies[j].intersects(hero) && zombies[j].visible) {
+			isGameOver = true;
+		}
+	}
+	for (var j = zombies.length - 1; j >= 0; j--) {
 		zombies[j].move();
 		if (zombies[j].y > 2732) {
 			zombies[j].destroy();
 			zombies.splice(j, 1);
 		} else if (zombies[j].intersects(hero)) {
 			isGameOver = true;
 		}
 	}
+	game.on('move', function (obj) {
+		var mousePos = obj.event.getLocalPosition(game);
+		hero.orientTorch(mousePos);
+	});
 	// Spawn zombies
 	if (LK.ticks % 120 == 0) {
 		// Spawn a zombie every 2 seconds
 		var zombie = new Zombie();