/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Phone class representing a phone entity
var Phone = Container.expand(function () {
	var self = Container.call(this);
	var phoneGraphics = self.attachAsset('phone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.price = 100; // Initial price of the phone
	self.upgradeLevel = 0; // Initial upgrade level
	// Method to upgrade the phone
	self.upgrade = function () {
		self.upgradeLevel++;
		self.price += 50; // Increase price with each upgrade
	};
	// Method to sell the phone
	self.sell = function () {
		var sellPrice = self.price;
		self.destroy();
		return sellPrice;
	};
	// Method to check if a point is within the phone's bounds
	self.containsPoint = function (point) {
		return phoneGraphics.containsPoint(point);
	};
});
// Player class representing the player entity
var Player = Container.expand(function () {
	var self = Container.call(this);
	self.money = 500; // Initial money
	self.phones = []; // Array to hold player's phones
	// Method to buy a phone
	self.buyPhone = function () {
		if (self.money >= 100) {
			var newPhone = new Phone();
			newPhone.x = Math.random() * 2048;
			newPhone.y = Math.random() * 2732;
			self.phones.push(newPhone);
			game.addChild(newPhone);
			self.money -= 100;
		}
	};
	// Method to upgrade a phone
	self.upgradePhone = function (phone) {
		if (self.money >= 50) {
			phone.upgrade();
			self.money -= 50;
		}
	};
	// Method to sell a phone
	self.sellPhone = function (phone) {
		var sellPrice = phone.sell();
		self.money += sellPrice;
		var index = self.phones.indexOf(phone);
		if (index > -1) {
			self.phones.splice(index, 1);
		}
	};
});
// Shop class representing the shop entity
var Shop = Container.expand(function () {
	var self = Container.call(this);
	self.buyPhone = function (player) {
		if (player.money >= 100) {
			var newPhone = new Phone();
			newPhone.x = Math.random() * 2048;
			newPhone.y = Math.random() * 2732;
			player.phones.push(newPhone);
			game.addChild(newPhone);
			player.money -= 100;
		}
	};
	self.upgradePhone = function (player, phone) {
		if (player.money >= 50) {
			phone.upgrade();
			player.money -= 50;
		}
	};
	self.sellPhone = function (player, phone) {
		var sellPrice = phone.sell();
		player.money += sellPrice;
		var index = player.phones.indexOf(phone);
		if (index > -1) {
			player.phones.splice(index, 1);
		}
	};
	// Method to buy an old phone
	self.buyOldPhone = function (player) {
		if (player.money >= 50) {
			// Old phones cost less
			var oldPhone = new Phone();
			oldPhone.x = Math.random() * 2048;
			oldPhone.y = Math.random() * 2732;
			oldPhone.price = 50; // Set the price of the old phone
			player.phones.push(oldPhone);
			game.addChild(oldPhone);
			player.money -= 50;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
// Initialize player
var player = new Player();
game.addChild(player);
// Initialize shop
var shop = new Shop();
// Display player's money
var moneyTxt = new Text2('Money: $' + player.money, {
	size: 50,
	fill: "#ffffff"
});
moneyTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(moneyTxt);
// Update money display
function updateMoneyDisplay() {
	moneyTxt.setText('Money: $' + player.money);
}
// Handle game updates
game.update = function () {
	// Update money display every tick
	updateMoneyDisplay();
};
// Handle touch events to buy, upgrade, or sell phones
game.down = function (x, y, obj) {
	var localPos = game.toLocal(obj.global);
	var touchedPhone = null;
	// Check if a phone was touched
	for (var i = 0; i < player.phones.length; i++) {
		if (player.phones[i].containsPoint(localPos)) {
			touchedPhone = player.phones[i];
			break;
		}
	}
	if (touchedPhone) {
		// Upgrade or sell the touched phone
		if (obj.event.shiftKey) {
			shop.sellPhone(player, touchedPhone);
		} else {
			shop.upgradePhone(player, touchedPhone);
		}
	} else {
		// Buy a new phone if no phone was touched
		if (obj.event.detail === 2) {
			// Check for double click
			shop.buyOldPhone(player);
		} else {
			shop.buyPhone(player);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -86,8 +86,21 @@
 		if (index > -1) {
 			player.phones.splice(index, 1);
 		}
 	};
+	// Method to buy an old phone
+	self.buyOldPhone = function (player) {
+		if (player.money >= 50) {
+			// Old phones cost less
+			var oldPhone = new Phone();
+			oldPhone.x = Math.random() * 2048;
+			oldPhone.y = Math.random() * 2732;
+			oldPhone.price = 50; // Set the price of the old phone
+			player.phones.push(oldPhone);
+			game.addChild(oldPhone);
+			player.money -= 50;
+		}
+	};
 });
 
 /**** 
 * Initialize Game
@@ -139,7 +152,12 @@
 			shop.upgradePhone(player, touchedPhone);
 		}
 	} else {
 		// Buy a new phone if no phone was touched
-		shop.buyPhone(player);
+		if (obj.event.detail === 2) {
+			// Check for double click
+			shop.buyOldPhone(player);
+		} else {
+			shop.buyPhone(player);
+		}
 	}
 };
\ No newline at end of file