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

/**** 
* Classes
****/ 
var BiedronkaShop = Container.expand(function () {
	var self = Container.call(this);
	var shopGraphics = self.attachAsset('biedronka', {
		anchorX: 0,
		anchorY: 0
	});
	return self;
});
var Building = Container.expand(function () {
	var self = Container.call(this);
	var buildingGraphics = self.attachAsset('building', {
		anchorX: 0,
		anchorY: 0
	});
	return self;
});
var Destination = Container.expand(function () {
	var self = Container.call(this);
	var destinationGraphics = self.attachAsset('destination', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.pulse = function () {
		tween(self, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 500,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 500,
					easing: tween.easeInOut,
					onFinish: function onFinish() {
						self.pulse();
					}
				});
			}
		});
	};
	return self;
});
var GroceryStore = Container.expand(function () {
	var self = Container.call(this);
	self.items = [{
		name: 'Bread',
		price: 10,
		health: 5
	}, {
		name: 'Milk',
		price: 15,
		health: 8
	}, {
		name: 'Apples',
		price: 12,
		health: 6
	}, {
		name: 'Cheese',
		price: 20,
		health: 10
	}, {
		name: 'Water',
		price: 5,
		health: 3
	}, {
		name: 'Grilled Sausages',
		price: 30,
		health: 15
	}];
	self.show = function () {
		// Create store background
		var storeBg = LK.getAsset('road', {
			scaleX: 15,
			scaleY: 18,
			x: 1024,
			y: 1366,
			anchorX: 0.5,
			anchorY: 0.5
		});
		storeBg.alpha = 0.95;
		game.addChild(storeBg);
		// Store title
		var storeTitle = new Text2('Biedronka Grocery Store', {
			size: 70,
			fill: 0x00ff00
		});
		storeTitle.anchor.set(0.5, 0);
		storeTitle.x = 1024;
		storeTitle.y = 800;
		game.addChild(storeTitle);
		// Player stats
		var playerCoins = storage.coins || 0;
		var playerHealth = storage.health || 100;
		var statsText = new Text2('Coins: ' + playerCoins + ' | Health: ' + playerHealth, {
			size: 50,
			fill: 0xffffff
		});
		statsText.anchor.set(0.5, 0);
		statsText.x = 1024;
		statsText.y = 900;
		game.addChild(statsText);
		// Items display
		var itemsContainer = new Container();
		itemsContainer.x = 1024;
		itemsContainer.y = 1100;
		game.addChild(itemsContainer);
		for (var i = 0; i < self.items.length; i++) {
			var item = self.items[i];
			var itemBg = LK.getAsset('road', {
				scaleX: 6,
				scaleY: 1.5,
				x: 0,
				y: i * 120,
				anchorX: 0.5,
				anchorY: 0.5
			});
			itemBg.alpha = 0.7;
			itemsContainer.addChild(itemBg);
			var itemText = new Text2(item.name + ' - ' + item.price + ' coins (+' + item.health + ' health)', {
				size: 45,
				fill: playerCoins >= item.price ? 0x00ff00 : 0xff0000
			});
			itemText.anchor.set(0.5, 0.5);
			itemText.x = 0;
			itemText.y = i * 120;
			itemsContainer.addChild(itemText);
			// Store item data for click detection
			itemBg.itemData = item;
			itemBg.itemIndex = i;
		}
		// Close button
		var closeButton = LK.getAsset('road', {
			scaleX: 4,
			scaleY: 1.5,
			x: 1024,
			y: 1800,
			anchorX: 0.5,
			anchorY: 0.5
		});
		closeButton.alpha = 0.8;
		game.addChild(closeButton);
		var closeText = new Text2('Close Shop', {
			size: 50,
			fill: 0xffffff
		});
		closeText.anchor.set(0.5, 0.5);
		closeText.x = 1024;
		closeText.y = 1800;
		game.addChild(closeText);
		// Store references for cleanup
		self.storeElements = [storeBg, storeTitle, statsText, itemsContainer, closeButton, closeText];
		// Handle purchases
		var handlePurchase = function handlePurchase(x, y, obj) {
			// Check if clicking on items
			var localPos = itemsContainer.toLocal({
				x: x,
				y: y
			});
			var itemIndex = Math.floor((localPos.y + 60) / 120);
			if (itemIndex >= 0 && itemIndex < self.items.length) {
				var item = self.items[itemIndex];
				var currentCoins = storage.coins || 0;
				if (currentCoins >= item.price) {
					// Purchase item
					storage.coins = currentCoins - item.price;
					storage.health = Math.min(100, (storage.health || 100) + item.health);
					// Update score
					LK.setScore(LK.getScore() + item.health * 2);
					scoreTxt.setText('Score: ' + LK.getScore());
					// Flash green for successful purchase
					LK.effects.flashScreen(0x00ff00, 300);
					// Close and reopen to refresh display
					self.close();
					LK.setTimeout(function () {
						self.show();
					}, 100);
				} else {
					// Not enough coins
					LK.effects.flashScreen(0xff0000, 300);
				}
				return;
			}
			// Check if clicking close button
			if (Math.abs(x - 1024) < 240 && Math.abs(y - 1800) < 90) {
				self.close();
			}
		};
		game.down = handlePurchase;
	};
	self.close = function () {
		if (self.storeElements) {
			for (var i = 0; i < self.storeElements.length; i++) {
				self.storeElements[i].destroy();
			}
			self.storeElements = null;
		}
		// Restore game activity and normal game controls
		isGameActive = true;
		game.down = function (x, y, obj) {
			if (!gameStarted) {
				gameStarted = true;
				initializeLevel();
			}
			lastTouchX = x;
			lastTouchY = y;
		};
		game.up = function (x, y, obj) {
			if (!gameStarted || !isGameActive) return;
			var deltaX = x - lastTouchX;
			var deltaY = y - lastTouchY;
			if (Math.abs(deltaX) > minSwipeDistance || Math.abs(deltaY) > minSwipeDistance) {
				if (Math.abs(deltaX) > Math.abs(deltaY)) {
					handleMovement(deltaX > 0 ? 1 : -1, 0);
				} else {
					handleMovement(0, deltaY > 0 ? 1 : -1);
				}
			}
		};
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.gridX = 0;
	self.gridY = 0;
	self.isMoving = false;
	self.moveToGrid = function (newGridX, newGridY) {
		if (self.isMoving) return false;
		var targetX = newGridX * GRID_SIZE + GRID_SIZE / 2;
		var targetY = newGridY * GRID_SIZE + GRID_SIZE / 2;
		self.isMoving = true;
		self.gridX = newGridX;
		self.gridY = newGridY;
		tween(self, {
			x: targetX,
			y: targetY
		}, {
			duration: 200,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.isMoving = false;
				LK.getSound('move').play();
			}
		});
		return true;
	};
	return self;
});
var Road = Container.expand(function () {
	var self = Container.call(this);
	var roadGraphics = self.attachAsset('road', {
		anchorX: 0,
		anchorY: 0
	});
	return self;
});
var SovietGuard = Container.expand(function () {
	var self = Container.call(this);
	var guardGraphics = self.attachAsset('guard', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.centerX = 0;
	self.centerY = 0;
	self.radius = 60;
	self.angle = 0;
	self.speed = 0.05;
	self.startCircularMovement = function () {
		self.angle = 0;
		self.circularTween();
	};
	self.circularTween = function () {
		tween(self, {
			angle: self.angle + Math.PI * 2
		}, {
			duration: 4000,
			easing: tween.linear,
			onFinish: function onFinish() {
				self.circularTween();
			}
		});
	};
	self.update = function () {
		self.x = self.centerX + Math.cos(self.angle) * self.radius;
		self.y = self.centerY + Math.sin(self.angle) * self.radius;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x263238
});

/**** 
* Game Code
****/ 
var GRID_SIZE = 120;
var GRID_WIDTH = 17;
var GRID_HEIGHT = 22;
var currentLevel = 1;
var timeLeft = 60;
var isGameActive = true;
var gameStarted = false;
var cityNames = ['Toruń', 'Białystok', 'Lublin', 'Katowice', 'Gdańsk', 'Wrocław', 'Poznań', 'Kraków', 'Łódź', 'Warsaw'];
// Initialize storage with defaults
if (storage.coins === undefined) storage.coins = 50;
if (storage.health === undefined) storage.health = 100;
var groceryStore = new GroceryStore();
var cityGrid = [];
var player;
var destination;
var obstacles = [];
var buildings = [];
var guards = [];
var biedronkas = [];
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var timeTxt = new Text2('Time: 60', {
	size: 60,
	fill: 0xFFFFFF
});
timeTxt.anchor.set(0.5, 0);
timeTxt.y = 80;
LK.gui.top.addChild(timeTxt);
var levelTxt = new Text2('Village', {
	size: 50,
	fill: 0xFFFFFF
});
levelTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(levelTxt);
levelTxt.x = -20;
levelTxt.y = 20;
function initializeGrid() {
	cityGrid = [];
	for (var x = 0; x < GRID_WIDTH; x++) {
		cityGrid[x] = [];
		for (var y = 0; y < GRID_HEIGHT; y++) {
			cityGrid[x][y] = 'road';
		}
	}
}
function createBuildings() {
	buildings = [];
	var buildingCount = Math.min(8 + currentLevel * 2, 20);
	for (var i = 0; i < buildingCount; i++) {
		var building = new Building();
		var gridX = Math.floor(Math.random() * (GRID_WIDTH - 2)) + 1;
		var gridY = Math.floor(Math.random() * (GRID_HEIGHT - 2)) + 1;
		building.x = gridX * GRID_SIZE;
		building.y = gridY * GRID_SIZE;
		game.addChild(building);
		buildings.push(building);
		cityGrid[gridX][gridY] = 'building';
		if (gridX + 1 < GRID_WIDTH) cityGrid[gridX + 1][gridY] = 'building';
	}
}
function createObstacles() {
	obstacles = [];
	var obstacleCount = Math.min(3 + currentLevel, 12);
	for (var i = 0; i < obstacleCount; i++) {
		var attempts = 0;
		var gridX, gridY;
		do {
			gridX = Math.floor(Math.random() * GRID_WIDTH);
			gridY = Math.floor(Math.random() * GRID_HEIGHT);
			attempts++;
		} while (cityGrid[gridX][gridY] !== 'road' && attempts < 50);
		if (attempts < 50) {
			var obstacle = new Obstacle();
			obstacle.x = gridX * GRID_SIZE + GRID_SIZE / 2;
			obstacle.y = gridY * GRID_SIZE + GRID_SIZE / 2;
			game.addChild(obstacle);
			obstacles.push(obstacle);
			cityGrid[gridX][gridY] = 'obstacle';
		}
	}
}
function createGuards() {
	guards = [];
	var guardCount = Math.min(2 + Math.floor(currentLevel / 2), 6);
	for (var i = 0; i < guardCount; i++) {
		var attempts = 0;
		var gridX, gridY;
		do {
			gridX = Math.floor(Math.random() * GRID_WIDTH);
			gridY = Math.floor(Math.random() * GRID_HEIGHT);
			attempts++;
		} while (cityGrid[gridX][gridY] !== 'road' && attempts < 50);
		if (attempts < 50) {
			var guard = new SovietGuard();
			guard.centerX = gridX * GRID_SIZE + GRID_SIZE / 2;
			guard.centerY = gridY * GRID_SIZE + GRID_SIZE / 2;
			guard.x = guard.centerX;
			guard.y = guard.centerY;
			game.addChild(guard);
			guards.push(guard);
			guard.startCircularMovement();
		}
	}
}
function showGroceryStorePopup() {
	// Pause game activity
	isGameActive = false;
	// Show the grocery store
	groceryStore.show();
}
function createBiedronkas() {
	biedronkas = [];
	var biedronkaCount = Math.min(1 + Math.floor(currentLevel / 3), 4);
	for (var i = 0; i < biedronkaCount; i++) {
		var attempts = 0;
		var gridX, gridY;
		do {
			gridX = Math.floor(Math.random() * (GRID_WIDTH - 2)) + 1;
			gridY = Math.floor(Math.random() * (GRID_HEIGHT - 2)) + 1;
			attempts++;
		} while (cityGrid[gridX][gridY] !== 'road' && attempts < 50);
		if (attempts < 50) {
			var biedronka = new BiedronkaShop();
			biedronka.x = gridX * GRID_SIZE;
			biedronka.y = gridY * GRID_SIZE;
			game.addChild(biedronka);
			biedronkas.push(biedronka);
			cityGrid[gridX][gridY] = 'biedronka';
			if (gridX + 1 < GRID_WIDTH) cityGrid[gridX + 1][gridY] = 'biedronka';
		}
	}
}
function createDestination() {
	var attempts = 0;
	var gridX, gridY;
	do {
		gridX = Math.floor(Math.random() * GRID_WIDTH);
		gridY = Math.floor(Math.random() * GRID_HEIGHT);
		attempts++;
	} while (cityGrid[gridX][gridY] !== 'road' && attempts < 100);
	destination = new Destination();
	destination.x = gridX * GRID_SIZE + GRID_SIZE / 2;
	destination.y = gridY * GRID_SIZE + GRID_SIZE / 2;
	destination.gridX = gridX;
	destination.gridY = gridY;
	game.addChild(destination);
	destination.pulse();
	cityGrid[gridX][gridY] = 'destination';
}
function createPlayer() {
	var attempts = 0;
	var gridX, gridY;
	do {
		gridX = Math.floor(Math.random() * GRID_WIDTH);
		gridY = Math.floor(Math.random() * GRID_HEIGHT);
		attempts++;
	} while (cityGrid[gridX][gridY] !== 'road' && attempts < 100);
	player = new Player();
	player.gridX = gridX;
	player.gridY = gridY;
	player.x = gridX * GRID_SIZE + GRID_SIZE / 2;
	player.y = gridY * GRID_SIZE + GRID_SIZE / 2;
	game.addChild(player);
}
function isValidMove(gridX, gridY) {
	if (gridX < 0 || gridX >= GRID_WIDTH || gridY < 0 || gridY >= GRID_HEIGHT) {
		return false;
	}
	var cellType = cityGrid[gridX][gridY];
	return cellType === 'road' || cellType === 'destination' || cellType === 'biedronka';
}
function checkWin() {
	// Check collision with guards
	for (var i = 0; i < guards.length; i++) {
		if (player.intersects(guards[i])) {
			LK.getSound('blocked').play();
			LK.effects.flashScreen(0xff0000, 500);
			isGameActive = false;
			LK.showGameOver();
			return;
		}
	}
	// Check interaction with Biedronka shops
	for (var i = 0; i < biedronkas.length; i++) {
		if (player.intersects(biedronkas[i])) {
			// Add coins for visiting Biedronka
			storage.coins = (storage.coins || 0) + 25;
			// Show grocery store
			showGroceryStorePopup();
			// Give bonus points for visiting Biedronka
			LK.setScore(LK.getScore() + 50);
			scoreTxt.setText('Score: ' + LK.getScore());
			// Flash green to show successful interaction
			LK.effects.flashScreen(0x00ff00, 300);
			// Remove the visited Biedronka
			biedronkas[i].destroy();
			biedronkas.splice(i, 1);
			break;
		}
	}
	if (player.gridX === destination.gridX && player.gridY === destination.gridY) {
		var timeBonus = Math.floor(timeLeft * 10);
		var levelBonus = currentLevel * 100;
		LK.setScore(LK.getScore() + timeBonus + levelBonus);
		LK.getSound('complete').play();
		LK.effects.flashScreen(0x4CAF50, 500);
		currentLevel++;
		if (currentLevel > 10) {
			LK.showYouWin();
		} else {
			initializeLevel();
		}
	}
}
function initializeLevel() {
	for (var i = buildings.length - 1; i >= 0; i--) {
		buildings[i].destroy();
	}
	for (var i = obstacles.length - 1; i >= 0; i--) {
		obstacles[i].destroy();
	}
	for (var i = guards.length - 1; i >= 0; i--) {
		guards[i].destroy();
	}
	for (var i = biedronkas.length - 1; i >= 0; i--) {
		biedronkas[i].destroy();
	}
	if (destination) destination.destroy();
	if (player) player.destroy();
	buildings = [];
	obstacles = [];
	guards = [];
	biedronkas = [];
	initializeGrid();
	createBuildings();
	createObstacles();
	createGuards();
	createBiedronkas();
	createDestination();
	createPlayer();
	timeLeft = Math.max(30, 80 - currentLevel * 3);
	var cityName = cityNames[Math.min(currentLevel - 1, cityNames.length - 1)];
	levelTxt.setText(cityName);
	scoreTxt.setText('Score: ' + LK.getScore());
	timeTxt.setText('Time: ' + timeLeft);
}
function handleMovement(deltaX, deltaY) {
	if (!isGameActive || !gameStarted || player.isMoving) return;
	var newGridX = player.gridX + deltaX;
	var newGridY = player.gridY + deltaY;
	if (isValidMove(newGridX, newGridY)) {
		if (player.moveToGrid(newGridX, newGridY)) {
			checkWin();
		}
	} else {
		LK.getSound('blocked').play();
	}
}
var lastTouchX = 0;
var lastTouchY = 0;
var minSwipeDistance = 50;
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		initializeLevel();
	}
	lastTouchX = x;
	lastTouchY = y;
};
game.up = function (x, y, obj) {
	if (!gameStarted || !isGameActive) return;
	var deltaX = x - lastTouchX;
	var deltaY = y - lastTouchY;
	if (Math.abs(deltaX) > minSwipeDistance || Math.abs(deltaY) > minSwipeDistance) {
		if (Math.abs(deltaX) > Math.abs(deltaY)) {
			handleMovement(deltaX > 0 ? 1 : -1, 0);
		} else {
			handleMovement(0, deltaY > 0 ? 1 : -1);
		}
	}
};
var gameTimer = null;
game.update = function () {
	if (!gameStarted || !isGameActive) return;
	if (LK.ticks % 60 === 0 && timeLeft > 0) {
		timeLeft--;
		timeTxt.setText('Time: ' + timeLeft);
		if (timeLeft <= 0) {
			isGameActive = false;
			LK.showGameOver();
		}
	}
};
var instructionTxt = new Text2('Swipe to navigate through the city\nReach the golden destination!\nTap to start', {
	size: 50,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 1024;
instructionTxt.y = 1366;
game.addChild(instructionTxt);

===================================================================
--- original.js
+++ change.js
@@ -73,8 +73,12 @@
 	}, {
 		name: 'Water',
 		price: 5,
 		health: 3
+	}, {
+		name: 'Grilled Sausages',
+		price: 30,
+		health: 15
 	}];
 	self.show = function () {
 		// Create store background
 		var storeBg = LK.getAsset('road', {