/**** 
* Classes
****/
// Block class for creating building blocks
var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGraphics = self.createAsset('block', 'Building block', 0.5, 0.5);
	self.move = function () {};
	self.update = function () {};
});
// BlackBlock class for creating black blocks
var BlackBlock = Container.expand(function () {
	var self = Container.call(this);
	var blackBlockGraphics = self.createAsset('blackBlock', 'Black block', 0.5, 0.5);
	self.move = function () {};
	self.update = function () {};
});

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

/**** 
* Game Code
****/
// Initialize important asset arrays
var blocks = [];
var blackBlocks = [];

// Function to handle the creation of blocks
function createBlock(x, y) {
	var block = new Block();
	block.x = x;
	block.y = y;
	blocks.push(block);
	game.addChild(block);
}

// Function to handle the creation of black blocks
function createBlackBlock(x, y) {
	var blackBlock = new BlackBlock();
	blackBlock.x = x;
	blackBlock.y = y;
	blackBlocks.push(blackBlock);
	game.addChild(blackBlock);
}

// Event listener for right click to create building blocks
game.on('rightdown', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	createBlock(pos.x, pos.y);
});

// Event listener for right up to create black blocks
game.on('rightup', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	createBlackBlock(pos.x, pos.y);
});

// Main game update loop
LK.on('tick', function () {
	// Update all blocks
	for (var i = 0; i < blocks.length; i++) {
		blocks[i].update();
	}

	// Update all black blocks
	for (var j = 0; j < blackBlocks.length; j++) {
		blackBlocks[j].update();
	}
}); // Save game state
function saveGameState() {
	var gameState = {
		blocks: blocks.map(function (block) {
			return {
				x: block.x,
				y: block.y
			};
		}),
		blackBlocks: blackBlocks.map(function (blackBlock) {
			return {
				x: blackBlock.x,
				y: blackBlock.y
			};
		})
	};
	localStorage.setItem('gameState', JSON.stringify(gameState));
}

// Load game state
function loadGameState() {
	var savedState = typeof localStorage !== 'undefined' ? localStorage.getItem('gameState') : null;
	if (savedState) {
		var gameState = JSON.parse(savedState);
		gameState.blocks.forEach(function (blockData) {
			createBlock(blockData.x, blockData.y);
		});
		gameState.blackBlocks.forEach(function (blackBlockData) {
			createBlackBlock(blackBlockData.x, blackBlockData.y);
		});
	}
}

// Call load game state when game starts
loadGameState();

===================================================================
--- original.js
+++ change.js
@@ -91,9 +91,9 @@
 }
 
 // Load game state
 function loadGameState() {
-	var savedState = localStorage.getItem('gameState');
+	var savedState = typeof localStorage !== 'undefined' ? localStorage.getItem('gameState') : null;
 	if (savedState) {
 		var gameState = JSON.parse(savedState);
 		gameState.blocks.forEach(function (blockData) {
 			createBlock(blockData.x, blockData.y);