===================================================================
--- original.js
+++ change.js
@@ -1,30 +1,31 @@
 /**** 
 * 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);
-		}
-		if (self.assetId) {
-			self.asset = self.attachAsset(self.assetId, {
-				anchorX: 0.5,
-				anchorY: 0.5
-			});
-		}
-	};
-	self.refreshAsset();
+var Item1 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item1', price);
 });
+var Item2 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item2', price);
+});
+var Item3 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item3', price);
+});
+var Item4 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item4', price);
+});
+var Item5 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item5', price);
+});
+var Item6 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item6', price);
+});
+var Item7 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item7', price);
+});
+var Item8 = ShopItem.expand(function (price) {
+	var self = ShopItem.call(this, 'item8', price);
+});
 var ShopMenu = Container.expand(function () {
 	var self = Container.call(this);
 	self.visible = false;
 	self.items = [];
@@ -66,16 +67,16 @@
 var shopMenu = game.addChild(new ShopMenu());
 shopMenu.x = 1024; // Center of the screen
 shopMenu.y = 1366; // Middle of the screen
 // Sample items for the shop
-shopMenu.addItem(new ShopItem('item1', 100));
-shopMenu.addItem(new ShopItem('item2', 200));
-shopMenu.addItem(new ShopItem('item3', 300));
-shopMenu.addItem(new ShopItem('item4', 400));
-shopMenu.addItem(new ShopItem('item5', 500));
-shopMenu.addItem(new ShopItem('item6', 600));
-shopMenu.addItem(new ShopItem('item7', 700));
-shopMenu.addItem(new ShopItem('item8', 800));
+shopMenu.addItem(new Item1(100));
+shopMenu.addItem(new Item2(200));
+shopMenu.addItem(new Item3(300));
+shopMenu.addItem(new Item4(400));
+shopMenu.addItem(new Item5(500));
+shopMenu.addItem(new Item6(600));
+shopMenu.addItem(new Item7(700));
+shopMenu.addItem(new Item8(800));
 // Position shop items in rows of 3
 var itemOffsetX = 200;
 var itemOffsetY = 200;
 var itemsPerRow = 3;