/**** 
* Classes
****/
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityY = 0;
	self.gravity = 0.6;
	self.flapPower = -9;
	self.flap = function () {
		self.velocityY = self.flapPower;
	};
	self.updatePhysics = function () {
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		// Lock the bird's horizontal position to the center of the screen
		self.x = game.width / 2;
		// Keep the bird within the game boundaries
		if (self.y > game.height - self.height / 2) {
			self.y = game.height - self.height / 2;
			LK.showGameOver();
		} else if (self.y < 0) {
			self.y = 0;
		}
	};
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.move = function () {
		self.y += self.speed;
	};
});
var MainMenu = Container.expand(function () {
	var self = Container.call(this);
	self.menuItems = [];
	self.createMenuItem = function (text, levelIndex) {
		var menuItem = new Text2(text, {
			size: 100,
			fill: '#ffffff'
		});
		menuItem.levelIndex = levelIndex;
		menuItem.y = game.height / 2 - self.menuItems.length * 200 / 2 + levelIndex * 200;
		menuItem.anchor.set(0.5, 0.5);
		menuItem.x = game.width / 2;
		menuItem.on('down', function (obj) {
			if (levelManager.getLevelDesign(levelIndex)) {
				// Generate a unique randomized map and pipe layout
				var pipePositions = levelManager.generateRandomPipes(levelIndex);
				// Start the game with the generated pipe positions
				startGame(levelIndex, pipePositions);
			} else {
				// Level is locked
				// Placeholder for level locked feedback
			}
		});
		self.addChild(menuItem);
		var button = new Button('Start', function () {
			// Start the game or level here
			// Placeholder for the correct game start function
		});
		button.x = menuItem.x + menuItem.width / 2 + 50; // Position button to the right of the menu item
		button.y = menuItem.y;
		self.addChild(button);
		self.menuItems.push({
			menuItem: menuItem,
			button: button
		});
	};
	self.createMenuItem('Level 1', 0);
	self.createMenuItem('Level 2', 1);
	self.createMenuItem('Level 3', 2);
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var topPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 1,
		flipY: 1 // Flip the top pipe vertically
	});
	var bottomPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 0
	});
	var gapSize = 300;
	self.setGap = function (gapY) {
		topPipe.y = gapY - gapSize / 2 - topPipe.height;
		bottomPipe.y = gapY + gapSize / 2;
	};
	self.move = function () {
		self.x -= 2; // Set a constant speed for the pipes to move left
	};
	self.resetPosition = function (newX) {
		self.x = newX;
	};
	self.getTopPipe = function () {
		return topPipe;
	};
	self.getBottomPipe = function () {
		return bottomPipe;
	};
});
var Button = Container.expand(function (label, callback) {
	var self = Container.call(this);
	var buttonGraphics = self.attachAsset('enemy', {
		width: 100,
		height: 50,
		color: 0x0000ff,
		shape: 'box'
	});
	var buttonText = new Text2(label, {
		size: 50,
		fill: '#ffffff'
	});
	buttonText.anchor.set(0.5, 0.5);
	buttonText.x = buttonGraphics.width / 2;
	buttonText.y = buttonGraphics.height / 2;
	self.addChild(buttonText);
	self.interactive = true;
	self.buttonMode = true;
	self.on('down', function (obj) {
		callback();
	});
});
var LevelManager = Container.expand(function () {
	var self = Container.call(this);
	LevelManager.prototype.generateRandomPipes = function (levelIndex) {
		var level = this.levels[levelIndex];
		var pipePositions = [];
		for (var i = 0; i < level.pipes.length; i++) {
			// Randomize pipe position within a range
			pipePositions.push(Math.random() * (game.height - 200) + 100);
		}
		return pipePositions;
	};
	self.levels = [{
		pipes: [300, 500, 700],
		unlocked: true
	}, {
		pipes: [250, 450, 650, 850],
		unlocked: false
	}, {
		pipes: [200, 400, 600, 800, 1000],
		unlocked: false
	}];
	self.unlockLevel = function (levelIndex) {
		if (levelIndex < self.levels.length) {
			self.levels[levelIndex].unlocked = true;
		}
	};
	self.getLevelDesign = function (levelIndex) {
		if (levelIndex < self.levels.length && self.levels[levelIndex].unlocked) {
			return self.levels[levelIndex].pipes;
		}
		return null;
	};
});

/**** 
* Initialize Game
****/
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Init game with sky blue background
});

/**** 
* Game Code
****/
function startGame(levelIndex, pipePositions) {
	// Clear the main menu
	if (mainMenu) {
		mainMenu.destroy();
		mainMenu = null;
	}
	// Create and initialize the bird
	var bird = game.addChild(new Bird());
	bird.x = game.width / 2;
	bird.y = game.height / 2;
	var obstacles = [];
	// Create and position pipes according to the generated positions
	for (var i = 0; i < pipePositions.length; i++) {
		var obstacle = game.addChild(new Obstacle());
		obstacle.setGap(pipePositions[i]);
		obstacle.x = game.width + i * 300;
		obstacles.push(obstacle);
	}
	// Add touch event to make the bird flap and jump
	game.on('down', function (obj) {
		// Ensure bird is defined and accessible
		if (bird) {
			bird.flap();
		}
		// Update bird's position immediately after flapping
		bird.updatePhysics();
	});
	// Set up the game tick event for the level
	LK.on('tick', function () {
		// Update bird physics
		bird.updatePhysics();
		// Move obstacles
		if (obstacles && obstacles.length > 0) {
			for (var i = 0; i < obstacles.length; i++) {
				obstacles[i].move();
			}
		}
		// Check for collision between the bird and the pipes
		for (var i = 0; i < obstacles.length; i++) {
			var obstacle = obstacles[i];
			var topPipe = obstacle.getTopPipe();
			var bottomPipe = obstacle.getBottomPipe();
			if (bird.intersects(topPipe) || bird.intersects(bottomPipe)) {
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
				break;
			}
		}
	});
}
var mainMenu;
var bird = null;
var levelManager = game.addChild(new LevelManager());
mainMenu = game.addChild(new MainMenu());
startGame(0, levelManager.generateRandomPipes(0));

===================================================================
--- original.js
+++ change.js
@@ -190,8 +190,17 @@
 		obstacle.setGap(pipePositions[i]);
 		obstacle.x = game.width + i * 300;
 		obstacles.push(obstacle);
 	}
+	// Add touch event to make the bird flap and jump
+	game.on('down', function (obj) {
+		// Ensure bird is defined and accessible
+		if (bird) {
+			bird.flap();
+		}
+		// Update bird's position immediately after flapping
+		bird.updatePhysics();
+	});
 	// Set up the game tick event for the level
 	LK.on('tick', function () {
 		// Update bird physics
 		bird.updatePhysics();
@@ -214,16 +223,8 @@
 		}
 	});
 }
 var mainMenu;
+var bird = null;
 var levelManager = game.addChild(new LevelManager());
 mainMenu = game.addChild(new MainMenu());
-startGame(0, levelManager.generateRandomPipes(0));
-// Add touch event to make the bird flap and jump
-game.on('down', function (obj) {
-	// Ensure bird is defined and accessible
-	if (typeof bird !== 'undefined' && bird) {
-		bird.flap();
-	}
-	// Update bird's position immediately after flapping
-	bird.updatePhysics();
-});
\ No newline at end of file
+startGame(0, levelManager.generateRandomPipes(0));
\ No newline at end of file