===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,236 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Customer = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('customer', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.items = [];
+	self.currentItemIndex = 0;
+	self.isBeingServed = false;
+	self.patience = 100;
+	self.maxPatience = 100;
+	self.waitTime = 0;
+	// Create 2-4 items for this customer
+	var itemCount = Math.floor(Math.random() * 3) + 2;
+	for (var i = 0; i < itemCount; i++) {
+		var item = new Item();
+		self.items.push(item);
+	}
+	self.placeItemsOnCounter = function () {
+		var startX = 1024 - self.items.length * 100 / 2;
+		for (var i = 0; i < self.items.length; i++) {
+			var item = self.items[i];
+			item.x = startX + i * 100;
+			item.y = counterY - 50;
+			game.addChild(item);
+		}
+	};
+	self.allItemsScanned = function () {
+		for (var i = 0; i < self.items.length; i++) {
+			if (!self.items[i].scanned) {
+				return false;
+			}
+		}
+		return true;
+	};
+	self.getTotalValue = function () {
+		var total = 0;
+		for (var i = 0; i < self.items.length; i++) {
+			total += self.items[i].value;
+		}
+		return total;
+	};
+	self.completeTransaction = function () {
+		// Remove items from counter
+		for (var i = 0; i < self.items.length; i++) {
+			if (self.items[i].parent) {
+				self.items[i].destroy();
+			}
+		}
+		// Add to score
+		LK.setScore(LK.getScore() + self.getTotalValue());
+		scoreTxt.setText('Score: ' + LK.getScore());
+		// Play sound
+		LK.getSound('cashRegister').play();
+		// Move customer out
+		tween(self, {
+			x: -200
+		}, {
+			duration: 1000,
+			onFinish: function onFinish() {
+				self.destroy();
+			}
+		});
+	};
+	self.update = function () {
+		if (self.isBeingServed) {
+			self.waitTime++;
+			if (self.waitTime > 60) {
+				// After 1 second
+				self.patience -= 0.5;
+				if (self.patience <= 0) {
+					// Customer leaves angry
+					self.completeTransaction();
+				}
+			}
+		}
+	};
+	return self;
+});
+var Item = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('item', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.scanned = false;
+	self.value = Math.floor(Math.random() * 5) + 1; // Random value 1-5
+	// Visual feedback for scanned items
+	self.scan = function () {
+		if (!self.scanned) {
+			self.scanned = true;
+			graphics.tint = 0x90EE90; // Light green when scanned
+			LK.getSound('itemScan').play();
+		}
+	};
+	self.down = function (x, y, obj) {
+		self.scan();
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0xf5f5f5
+});
+
+/**** 
+* Game Code
+****/ 
+var customers = [];
+var customerQueue = [];
+var currentCustomer = null;
+var spawnTimer = 0;
+var spawnDelay = 180; // 3 seconds at 60fps
+var counterY = 1500;
+// Create counter
+var counter = game.addChild(LK.getAsset('counter', {
+	anchorX: 0.5,
+	anchorY: 0.5
+}));
+counter.x = 1024;
+counter.y = counterY;
+// Create queue area
+var queueArea = game.addChild(LK.getAsset('queueArea', {
+	anchorX: 0.5,
+	anchorY: 0.5
+}));
+queueArea.x = 1024;
+queueArea.y = 2200;
+// Create score display
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0x000000
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create instructions
+var instructionsTxt = new Text2('Tap items to scan them!', {
+	size: 40,
+	fill: 0x666666
+});
+instructionsTxt.anchor.set(0.5, 0);
+instructionsTxt.y = 80;
+LK.gui.top.addChild(instructionsTxt);
+function spawnCustomer() {
+	var customer = new Customer();
+	customer.x = -200;
+	customer.y = 2200;
+	customers.push(customer);
+	customerQueue.push(customer);
+	game.addChild(customer);
+	// Move customer to queue position
+	var queuePosition = 800 + (customerQueue.length - 1) * 150;
+	tween(customer, {
+		x: queuePosition
+	}, {
+		duration: 2000
+	});
+}
+function serveNextCustomer() {
+	if (customerQueue.length > 0 && !currentCustomer) {
+		currentCustomer = customerQueue.shift();
+		currentCustomer.isBeingServed = true;
+		// Move customer to counter
+		tween(currentCustomer, {
+			x: 1024,
+			y: counterY + 100
+		}, {
+			duration: 1500,
+			onFinish: function onFinish() {
+				currentCustomer.placeItemsOnCounter();
+			}
+		});
+		// Move other customers forward in queue
+		for (var i = 0; i < customerQueue.length; i++) {
+			var queuePos = 800 + i * 150;
+			tween(customerQueue[i], {
+				x: queuePos
+			}, {
+				duration: 1000
+			});
+		}
+	}
+}
+game.update = function () {
+	spawnTimer++;
+	// Spawn new customers
+	if (spawnTimer >= spawnDelay) {
+		spawnCustomer();
+		spawnTimer = 0;
+		// Gradually increase spawn rate
+		if (spawnDelay > 120) {
+			spawnDelay -= 2;
+		}
+	}
+	// Check if current customer transaction is complete
+	if (currentCustomer && currentCustomer.isBeingServed) {
+		if (currentCustomer.allItemsScanned()) {
+			currentCustomer.completeTransaction();
+			// Remove from customers array
+			for (var i = customers.length - 1; i >= 0; i--) {
+				if (customers[i] === currentCustomer) {
+					customers.splice(i, 1);
+					break;
+				}
+			}
+			currentCustomer = null;
+			// Serve next customer after a short delay
+			LK.setTimeout(function () {
+				serveNextCustomer();
+			}, 500);
+		}
+	}
+	// Serve next customer if none is being served
+	if (!currentCustomer) {
+		serveNextCustomer();
+	}
+	// Game over condition - too many customers waiting
+	if (customerQueue.length >= 5) {
+		LK.showGameOver();
+	}
+};
+// Initial customer spawn
+LK.setTimeout(function () {
+	spawnCustomer();
+}, 1000);
\ No newline at end of file