/**** 
* Classes
****/
// BlueBlock class for creating blue blocks
var BlueBlock = Container.expand(function () {
	var self = Container.call(this);
	var blueBlockGraphics = self.createAsset('blueBlock', 'Blue block', 0.5, 0.5);
	self.layer = 1;
	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 () {};
});
// SaveButton class for creating save button
var SaveButton = Container.expand(function () {
	var self = Container.call(this);
	var saveButtonGraphics = self.createAsset('saveButton', 'Save button', 0.5, 0.5);
	saveButtonGraphics.rotation = Math.PI / 4; // Set button at 45 degrees angle
	self.layer = 2;
	self.on('rightdown', function () {
		self.saveGame();
	});
	self.saveGame = function () {
		if (typeof LK.localStorage !== 'undefined') {
			var gameState = {
				blueBlocks: game.children.filter(function (child) {
					return child instanceof BlueBlock;
				}).map(function (block) {
					return {
						x: block.x,
						y: block.y
					};
				}),
				blackBlocks: game.children.filter(function (child) {
					return child instanceof BlackBlock;
				}).map(function (block) {
					return {
						x: block.x,
						y: block.y
					};
				})
			};
			LK.localStorage.setItem('gameState', JSON.stringify(gameState));
			console.log('Game state saved.');
		}
	};
});
// Function to save the current state of blueBlocks and blackBlocks
// ResetButton class for creating reset button
var ResetButton = Container.expand(function () {
	var self = Container.call(this);
	var resetButtonGraphics = self.createAsset('resetButton', 'Reset button', 0.5, 0.5);
	self.layer = 2;
	self.on('down', function () {
		// Reset the game state
		blueBlocks.forEach(function (block) {
			block.destroy();
		});
		blackBlocks.forEach(function (block) {
			block.destroy();
		});
		blueBlocks = [];
		blackBlocks = [];
		// Optionally, reset other game states here
	});
});
// Floor class for creating the floor
var Floor = Container.expand(function () {
	var self = Container.call(this);
	var floorGraphics = self.createAsset('floor', 'Floor asset', 0.5, 1);
	self.update = function () {};
	self.interactive = true;
	self.on('down', function (obj) {
		if (obj.event.data && obj.event.data.button === 0) {
			var pos = obj.event.getLocalPosition(game);
			createFloor(pos.x, pos.y);
		}
	});
});

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

/**** 
* Game Code
****/
// Instantiate and position the floor object
var floor = game.addChild(new Floor());
floor.x = game.width / 2;
floor.y = game.height - floor.height / 2;
LK.on('init', function () {
	// Automatically load the game state when the game initializes
	savedBlueBlocks.forEach(function (data) {
		var blueBlock = game.addChild(new BlueBlock());
		blueBlock.x = data.x;
		blueBlock.y = data.y;
	});
	savedBlackBlocks.forEach(function (data) {
		var blackBlock = game.addChild(new BlackBlock());
		blackBlock.x = data.x;
		blackBlock.y = data.y;
	});
	var savedGameState = typeof LK.localStorage !== 'undefined' && LK.localStorage.getItem('gameState') ? JSON.parse(LK.localStorage.getItem('gameState')) : {
		blueBlocks: [],
		blackBlocks: []
	};
	savedGameState.blueBlocks.forEach(function (data) {
		var blueBlock = game.addChild(new BlueBlock());
		blueBlock.x = data.x;
		blueBlock.y = data.y;
	});
	savedGameState.blackBlocks.forEach(function (data) {
		var blackBlock = game.addChild(new BlackBlock());
		blackBlock.x = data.x;
		blackBlock.y = data.y;
	});
	console.log('Game state loaded.');
});
// Function to save the current state of blueBlocks and blackBlocks
// Initialize important asset arrays
game.saveGameState = function () {
	if (typeof LK.localStorage !== 'undefined') {
		LK.localStorage.setItem('blueBlocks', JSON.stringify(blueBlocks.map(function (block) {
			return {
				x: block.x,
				y: block.y
			};
		})));
	}
	if (typeof LK.localStorage !== 'undefined') {
		LK.localStorage.setItem('blackBlocks', JSON.stringify(blackBlocks.map(function (block) {
			return {
				x: block.x,
				y: block.y
			};
		})));
	}
};
var blueBlocks = [];
var blackBlocks = [];
// Function to handle the creation of the floor at the mouse position
function createFloor(x, y) {
	var floor = game.addChild(new Floor());
	floor.x = x - floor.width / 2;
	floor.y = y - floor.height / 2;
}
// Function to handle the creation of blue blocks
function createBlueBlock(x, y) {
	var blueBlock = new BlueBlock();
	blueBlock.x = x;
	blueBlock.y = y;
	blueBlock.layer = 1;
	blueBlocks.push(blueBlock);
	game.addChild(blueBlock);
	game.saveGameState();
}
// Function to handle the creation of black blocks
function createBlackBlock(x, y) {
	var blackBlock = new BlackBlock();
	blackBlock.x = x;
	blackBlock.y = y;
	blackBlock.layer = 1;
	blackBlocks.push(blackBlock);
	game.addChild(blackBlock);
	game.saveGameState();
}
// Event listener for left click to create blue blocks
game.on('down', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	// Check if the position is not on the save button before creating a block
	if (!saveButton.getBounds().contains(pos.x, pos.y)) {
		createBlueBlock(pos.x, pos.y);
	}
});
// Event listener for right up to create black blocks
game.on('rightup', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	// Check if the position is not on the save button before creating a block
	if (!saveButton.intersects(pos)) {
		createBlackBlock(pos.x, pos.y);
	}
});
// Main game update loop
LK.on('tick', function () {
	// Update all blue blocks
	for (var i = 0; i < blueBlocks.length; i++) {
		blueBlocks[i].update();
	}
	// Update all black blocks
	for (var j = 0; j < blackBlocks.length; j++) {
		blackBlocks[j].update();
	}
}); // Instantiate save button
var saveButton = new SaveButton();
saveButton.x = 20;
saveButton.y = 20;
game.addChild(saveButton);
// Instantiate reset button
var resetButton = new ResetButton();
resetButton.x = game.width - resetButton.width / 2 - 50;
resetButton.y = 50;
resetButton.layer = 2;
game.addChild(resetButton);
// Set up an automatic save function to trigger every 120 seconds (7200 frames at 60FPS)
var autoSaveTimer = LK.setInterval(game.saveGameState, 7200);

===================================================================
--- original.js
+++ change.js
@@ -75,9 +75,9 @@
 	var floorGraphics = self.createAsset('floor', 'Floor asset', 0.5, 1);
 	self.update = function () {};
 	self.interactive = true;
 	self.on('down', function (obj) {
-		if (obj.event.data.button === 0) {
+		if (obj.event.data && obj.event.data.button === 0) {
 			var pos = obj.event.getLocalPosition(game);
 			createFloor(pos.x, pos.y);
 		}
 	});