===================================================================
--- original.js
+++ change.js
@@ -1,61 +1,63 @@
-/****
+/**** 
 * Classes
 ****/
 var ShopItem = Container.expand(function (id, price) {
-  var self = Container.call(this);
-  self.id = id;
-  self.price = price;
-  self.affordable = true;
-  self.updateAffordability = function (playerCoins) {
-    self.affordable = playerCoins >= self.price;
-    self.assetId = self.affordable ? 'itemAffordable' : 'itemExpensive';
-    self.refreshAsset();
-  };
-  self.refreshAsset = function () {
-    if (self.asset) {
-      self.removeChild(self.asset);
-    }
-    self.asset = self.attachAsset(self.assetId, {
-      anchorX: 0.5,
-      anchorY: 0.5
-    });
-  };
-  self.refreshAsset();
+	var self = Container.call(this);
+	self.id = id;
+	self.price = price;
+	self.affordable = true;
+	self.updateAffordability = function (playerCoins) {
+		self.affordable = playerCoins >= self.price;
+		self.assetId = self.affordable ? 'itemAffordable' : 'itemExpensive';
+		self.refreshAsset();
+	};
+	self.refreshAsset = function () {
+		if (self.asset) {
+			self.removeChild(self.asset);
+		}
+		if (self.assetId) {
+			self.asset = self.attachAsset(self.assetId, {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+		}
+	};
+	self.refreshAsset();
 });
 var ShopMenu = Container.expand(function () {
-  var self = Container.call(this);
-  self.visible = false;
-  self.items = [];
-  self.toggleVisibility = function () {
-    self.visible = !self.visible;
-  };
-  self.addItem = function (item) {
-    self.items.push(item);
-    self.addChild(item);
-  };
-  self.updateItemsAffordability = function (playerCoins) {
-    self.items.forEach(function (item) {
-      item.updateAffordability(playerCoins);
-    });
-  };
+	var self = Container.call(this);
+	self.visible = false;
+	self.items = [];
+	self.toggleVisibility = function () {
+		self.visible = !self.visible;
+	};
+	self.addItem = function (item) {
+		self.items.push(item);
+		self.addChild(item);
+	};
+	self.updateItemsAffordability = function (playerCoins) {
+		self.items.forEach(function (item) {
+			item.updateAffordability(playerCoins);
+		});
+	};
 });
 
-/****
+/**** 
 * Initialize Game
 ****/
 var game = new LK.Game({
-  backgroundColor: 0x000000 // Init game with black background
+	backgroundColor: 0x000000 // Init game with black background
 });
 
-/****
+/**** 
 * Game Code
 ****/
 var shopButton = game.addChild(LK.getAsset('shopIcon', {
-  anchorX: 1,
-  anchorY: 0,
-  x: 2048,
-  y: 0
+	anchorX: 1,
+	anchorY: 0,
+	x: 2048,
+	y: 0
 }));
 var shopMenu = game.addChild(new ShopMenu());
 shopMenu.x = 1024; // Center of the screen
 shopMenu.y = 1366; // Middle of the screen
@@ -65,26 +67,26 @@
 shopMenu.addItem(new ShopItem('item3', 300));
 // Position shop items
 var itemOffsetY = 200;
 shopMenu.items.forEach(function (item, index) {
-  item.x = 0;
-  item.y = index * itemOffsetY - shopMenu.items.length * itemOffsetY / 2;
+	item.x = 0;
+	item.y = index * itemOffsetY - shopMenu.items.length * itemOffsetY / 2;
 });
 // Player's coins
 var playerCoins = 150; // Example starting coins
 // Shop button event listener
 shopButton.on('down', function () {
-  shopMenu.toggleVisibility();
-  shopMenu.updateItemsAffordability(playerCoins);
+	shopMenu.toggleVisibility();
+	shopMenu.updateItemsAffordability(playerCoins);
 });
 // Main game loop
 LK.on('tick', function () {
-  // Game logic goes here
-  // For example, earning coins or spending them in the shop
-  // This is just a placeholder for the actual game logic
+	// Game logic goes here
+	// For example, earning coins or spending them in the shop
+	// This is just a placeholder for the actual game logic
 });
 // Hide the shop menu initially
 shopMenu.visible = false;
 // Update the shop menu's visibility based on the shop button
 game.on('tick', function () {
-  shopMenu.visible = shopMenu.visible;
+	shopMenu.visible = shopMenu.visible;
 });
\ No newline at end of file