/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var BackgroundParticle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.attachAsset('backgroundParticle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 2 + 1;
	self.alpha = Math.random() * 0.5 + 0.2;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + 50) {
			self.y = -50;
			self.x = Math.random() * 2048;
		}
	};
	return self;
});
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.startAnimation = function (startX, startY, targetX, targetY) {
		self.x = startX;
		self.y = startY;
		self.alpha = 1;
		self.scale.set(0.5);
		// Scale up animation
		tween(self.scale, {
			x: 1,
			y: 1
		}, {
			duration: 200,
			easing: tween.easeOut
		});
		// Move to target position
		tween(self, {
			x: targetX,
			y: targetY
		}, {
			duration: 800,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
		// Fade out near the end
		LK.setTimeout(function () {
			tween(self, {
				alpha: 0
			}, {
				duration: 200
			});
		}, 600);
	};
	return self;
});
var TapEffect = Container.expand(function () {
	var self = Container.call(this);
	var effectGraphics = self.attachAsset('tapEffect', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.startAnimation = function (x, y) {
		self.x = x;
		self.y = y;
		self.alpha = 0.7;
		self.scale.set(0.3);
		// Scale up and fade out
		tween(self.scale, {
			x: 1.5,
			y: 1.5
		}, {
			duration: 300,
			easing: tween.easeOut
		});
		tween(self, {
			alpha: 0
		}, {
			duration: 300,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
// Game variables
var totalCoins = storage.totalCoins || 0;
var coinsPerTap = storage.coinsPerTap || 1;
var tapCount = storage.tapCount || 0;
var coins = [];
var tapEffects = [];
var backgroundParticles = [];
// UI Elements
var coinCountText = new Text2('$' + totalCoins, {
	size: 120,
	fill: 0xFFD700
});
coinCountText.anchor.set(0.5, 0);
LK.gui.top.addChild(coinCountText);
var tapCountText = new Text2('Taps: ' + tapCount, {
	size: 60,
	fill: 0xFFFFFF
});
tapCountText.anchor.set(0.5, 0);
tapCountText.y = 150;
LK.gui.top.addChild(tapCountText);
var coinsPerTapText = new Text2('$' + coinsPerTap + ' per tap', {
	size: 50,
	fill: 0x4CAF50
});
coinsPerTapText.anchor.set(0.5, 1);
LK.gui.bottom.addChild(coinsPerTapText);
// Shop system variables
var shopOpen = false;
var shopPanel = new Container();
var shopBackground = LK.getAsset('shopBackground', {
	width: 600,
	height: 2732,
	color: 0x2c2c54,
	shape: 'box',
	anchorX: 0,
	anchorY: 0
});
shopPanel.addChild(shopBackground);
shopPanel.x = -600; // Start hidden off-screen
game.addChild(shopPanel);
// Shop toggle button
var shopButton = new Text2('SHOP', {
	size: 80,
	fill: 0xFFD700
});
shopButton.anchor.set(1, 0);
shopButton.x = -20;
shopButton.y = 20;
LK.gui.topRight.addChild(shopButton);
// Shop items data
var shopItems = [{
	name: 'Double Click',
	description: 'Earn 2x coins per tap',
	cost: 100,
	owned: storage.doubleClick || false,
	type: 'upgrade'
}, {
	name: 'Auto Clicker',
	description: 'Automatically earn coins',
	cost: 500,
	owned: storage.autoClicker || false,
	type: 'upgrade'
}, {
	name: 'Gold Rush',
	description: 'Triple coins for 30 seconds',
	cost: 250,
	owned: false,
	type: 'consumable'
}];
// Shop UI elements
var shopItems = [];
var shopTitle = new Text2('SHOP', {
	size: 100,
	fill: 0xFFD700
});
shopTitle.anchor.set(0.5, 0);
shopTitle.x = 300;
shopTitle.y = 50;
shopPanel.addChild(shopTitle);
// Create shop item buttons
for (var i = 0; i < shopItems.length; i++) {
	var itemContainer = new Container();
	var itemBg = LK.getAsset('itemBg', {
		width: 550,
		height: 150,
		color: 0x3c3c5c,
		shape: 'box',
		anchorX: 0.5,
		anchorY: 0.5
	});
	var itemName = new Text2(shopItems[i].name, {
		size: 60,
		fill: 0xFFFFFF
	});
	itemName.anchor.set(0.5, 0);
	itemName.y = -40;
	var itemDesc = new Text2(shopItems[i].description, {
		size: 40,
		fill: 0xCCCCCC
	});
	itemDesc.anchor.set(0.5, 0);
	itemDesc.y = -5;
	var itemCost = new Text2('$' + shopItems[i].cost, {
		size: 50,
		fill: 0x4CAF50
	});
	itemCost.anchor.set(0.5, 0);
	itemCost.y = 30;
	itemContainer.addChild(itemBg);
	itemContainer.addChild(itemName);
	itemContainer.addChild(itemDesc);
	itemContainer.addChild(itemCost);
	itemContainer.x = 300;
	itemContainer.y = 250 + i * 200;
	itemContainer.itemIndex = i;
	// Add click handler for shop items
	itemContainer.down = function (x, y, obj) {
		var item = shopItems[obj.itemIndex];
		if (totalCoins >= item.cost && !item.owned) {
			totalCoins -= item.cost;
			item.owned = true;
			// Apply item effects
			if (item.name === 'Double Click') {
				coinsPerTap *= 2;
				storage.doubleClick = true;
			} else if (item.name === 'Auto Clicker') {
				storage.autoClicker = true;
			} else if (item.name === 'Gold Rush') {
				// Triple coins for 30 seconds
				var originalCoinsPerTap = coinsPerTap;
				coinsPerTap *= 3;
				LK.setTimeout(function () {
					coinsPerTap = originalCoinsPerTap;
				}, 30000);
			}
			// Update UI
			coinCountText.setText('$' + totalCoins);
			coinsPerTapText.setText('$' + coinsPerTap + ' per tap');
			// Flash item green
			LK.effects.flashObject(obj, 0x4CAF50, 500);
			// Save progress
			storage.totalCoins = totalCoins;
			storage.coinsPerTap = coinsPerTap;
		}
	};
	shopPanel.addChild(itemContainer);
}
// Create background particles
for (var i = 0; i < 15; i++) {
	var particle = new BackgroundParticle();
	particle.x = Math.random() * 2048;
	particle.y = Math.random() * 2732;
	backgroundParticles.push(particle);
	game.addChild(particle);
}
// Shop button click handler
shopButton.down = function (x, y, obj) {
	shopOpen = !shopOpen;
	var targetX = shopOpen ? 0 : -600;
	tween(shopPanel, {
		x: targetX
	}, {
		duration: 300,
		easing: tween.easeInOut
	});
};
// Main tap handler
game.down = function (x, y, obj) {
	// Don't process taps if shop is open
	if (shopOpen) return;
	// Increase coin count
	totalCoins += coinsPerTap;
	tapCount++;
	// Update UI
	coinCountText.setText('$' + totalCoins);
	tapCountText.setText('Taps: ' + tapCount);
	// Create coin animation
	var coin = new Coin();
	var targetX = 2048 / 2;
	var targetY = 200;
	coin.startAnimation(x, y, targetX, targetY);
	coins.push(coin);
	game.addChild(coin);
	// Create tap effect
	var tapEffect = new TapEffect();
	tapEffect.startAnimation(x, y);
	tapEffects.push(tapEffect);
	game.addChild(tapEffect);
	// Play sounds
	LK.getSound('coinSound').play();
	LK.getSound('tapSound').play();
	// Progression system - increase coins per tap every 50 taps
	if (tapCount % 50 === 0) {
		coinsPerTap++;
		coinsPerTapText.setText('$' + coinsPerTap + ' per tap');
		// Flash screen gold briefly
		LK.effects.flashScreen(0xFFD700, 500);
	}
	// Make background particles react to taps
	for (var i = 0; i < backgroundParticles.length; i++) {
		var particle = backgroundParticles[i];
		var distance = Math.sqrt(Math.pow(particle.x - x, 2) + Math.pow(particle.y - y, 2));
		if (distance < 200) {
			tween(particle, {
				alpha: 0.8
			}, {
				duration: 100
			});
			tween(particle, {
				alpha: particle.alpha
			}, {
				duration: 200
			});
		}
	}
	// Save progress
	storage.totalCoins = totalCoins;
	storage.coinsPerTap = coinsPerTap;
	storage.tapCount = tapCount;
};
// Game update loop
game.update = function () {
	// Auto-clicker functionality
	if (storage.autoClicker && LK.ticks % 120 === 0) {
		// Every 2 seconds
		totalCoins += Math.floor(coinsPerTap * 0.5); // 50% of manual tap value
		coinCountText.setText('$' + totalCoins);
		storage.totalCoins = totalCoins;
		// Create small coin animation at center
		var coin = new Coin();
		var centerX = 2048 / 2;
		var centerY = 2732 / 2;
		coin.startAnimation(centerX, centerY, centerX, 200);
		coins.push(coin);
		game.addChild(coin);
	}
	// Clean up destroyed coins
	for (var i = coins.length - 1; i >= 0; i--) {
		if (coins[i].destroyed) {
			coins.splice(i, 1);
		}
	}
	// Clean up destroyed tap effects
	for (var i = tapEffects.length - 1; i >= 0; i--) {
		if (tapEffects[i].destroyed) {
			tapEffects.splice(i, 1);
		}
	}
	// Animate coin count text occasionally
	if (LK.ticks % 300 === 0) {
		tween(coinCountText.scale, {
			x: 1.1,
			y: 1.1
		}, {
			duration: 150,
			easing: tween.easeOut
		});
		tween(coinCountText.scale, {
			x: 1,
			y: 1
		}, {
			duration: 150,
			easing: tween.easeIn
		});
	}
};

===================================================================
--- original.js
+++ change.js
@@ -132,18 +132,152 @@
 	fill: 0x4CAF50
 });
 coinsPerTapText.anchor.set(0.5, 1);
 LK.gui.bottom.addChild(coinsPerTapText);
+// Shop system variables
+var shopOpen = false;
+var shopPanel = new Container();
+var shopBackground = LK.getAsset('shopBackground', {
+	width: 600,
+	height: 2732,
+	color: 0x2c2c54,
+	shape: 'box',
+	anchorX: 0,
+	anchorY: 0
+});
+shopPanel.addChild(shopBackground);
+shopPanel.x = -600; // Start hidden off-screen
+game.addChild(shopPanel);
+// Shop toggle button
+var shopButton = new Text2('SHOP', {
+	size: 80,
+	fill: 0xFFD700
+});
+shopButton.anchor.set(1, 0);
+shopButton.x = -20;
+shopButton.y = 20;
+LK.gui.topRight.addChild(shopButton);
+// Shop items data
+var shopItems = [{
+	name: 'Double Click',
+	description: 'Earn 2x coins per tap',
+	cost: 100,
+	owned: storage.doubleClick || false,
+	type: 'upgrade'
+}, {
+	name: 'Auto Clicker',
+	description: 'Automatically earn coins',
+	cost: 500,
+	owned: storage.autoClicker || false,
+	type: 'upgrade'
+}, {
+	name: 'Gold Rush',
+	description: 'Triple coins for 30 seconds',
+	cost: 250,
+	owned: false,
+	type: 'consumable'
+}];
+// Shop UI elements
+var shopItems = [];
+var shopTitle = new Text2('SHOP', {
+	size: 100,
+	fill: 0xFFD700
+});
+shopTitle.anchor.set(0.5, 0);
+shopTitle.x = 300;
+shopTitle.y = 50;
+shopPanel.addChild(shopTitle);
+// Create shop item buttons
+for (var i = 0; i < shopItems.length; i++) {
+	var itemContainer = new Container();
+	var itemBg = LK.getAsset('itemBg', {
+		width: 550,
+		height: 150,
+		color: 0x3c3c5c,
+		shape: 'box',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	var itemName = new Text2(shopItems[i].name, {
+		size: 60,
+		fill: 0xFFFFFF
+	});
+	itemName.anchor.set(0.5, 0);
+	itemName.y = -40;
+	var itemDesc = new Text2(shopItems[i].description, {
+		size: 40,
+		fill: 0xCCCCCC
+	});
+	itemDesc.anchor.set(0.5, 0);
+	itemDesc.y = -5;
+	var itemCost = new Text2('$' + shopItems[i].cost, {
+		size: 50,
+		fill: 0x4CAF50
+	});
+	itemCost.anchor.set(0.5, 0);
+	itemCost.y = 30;
+	itemContainer.addChild(itemBg);
+	itemContainer.addChild(itemName);
+	itemContainer.addChild(itemDesc);
+	itemContainer.addChild(itemCost);
+	itemContainer.x = 300;
+	itemContainer.y = 250 + i * 200;
+	itemContainer.itemIndex = i;
+	// Add click handler for shop items
+	itemContainer.down = function (x, y, obj) {
+		var item = shopItems[obj.itemIndex];
+		if (totalCoins >= item.cost && !item.owned) {
+			totalCoins -= item.cost;
+			item.owned = true;
+			// Apply item effects
+			if (item.name === 'Double Click') {
+				coinsPerTap *= 2;
+				storage.doubleClick = true;
+			} else if (item.name === 'Auto Clicker') {
+				storage.autoClicker = true;
+			} else if (item.name === 'Gold Rush') {
+				// Triple coins for 30 seconds
+				var originalCoinsPerTap = coinsPerTap;
+				coinsPerTap *= 3;
+				LK.setTimeout(function () {
+					coinsPerTap = originalCoinsPerTap;
+				}, 30000);
+			}
+			// Update UI
+			coinCountText.setText('$' + totalCoins);
+			coinsPerTapText.setText('$' + coinsPerTap + ' per tap');
+			// Flash item green
+			LK.effects.flashObject(obj, 0x4CAF50, 500);
+			// Save progress
+			storage.totalCoins = totalCoins;
+			storage.coinsPerTap = coinsPerTap;
+		}
+	};
+	shopPanel.addChild(itemContainer);
+}
 // Create background particles
 for (var i = 0; i < 15; i++) {
 	var particle = new BackgroundParticle();
 	particle.x = Math.random() * 2048;
 	particle.y = Math.random() * 2732;
 	backgroundParticles.push(particle);
 	game.addChild(particle);
 }
+// Shop button click handler
+shopButton.down = function (x, y, obj) {
+	shopOpen = !shopOpen;
+	var targetX = shopOpen ? 0 : -600;
+	tween(shopPanel, {
+		x: targetX
+	}, {
+		duration: 300,
+		easing: tween.easeInOut
+	});
+};
 // Main tap handler
 game.down = function (x, y, obj) {
+	// Don't process taps if shop is open
+	if (shopOpen) return;
 	// Increase coin count
 	totalCoins += coinsPerTap;
 	tapCount++;
 	// Update UI
@@ -194,8 +328,22 @@
 	storage.tapCount = tapCount;
 };
 // Game update loop
 game.update = function () {
+	// Auto-clicker functionality
+	if (storage.autoClicker && LK.ticks % 120 === 0) {
+		// Every 2 seconds
+		totalCoins += Math.floor(coinsPerTap * 0.5); // 50% of manual tap value
+		coinCountText.setText('$' + totalCoins);
+		storage.totalCoins = totalCoins;
+		// Create small coin animation at center
+		var coin = new Coin();
+		var centerX = 2048 / 2;
+		var centerY = 2732 / 2;
+		coin.startAnimation(centerX, centerY, centerX, 200);
+		coins.push(coin);
+		game.addChild(coin);
+	}
 	// Clean up destroyed coins
 	for (var i = coins.length - 1; i >= 0; i--) {
 		if (coins[i].destroyed) {
 			coins.splice(i, 1);