/**** 
* Classes
****/ 
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.move = function () {
		self.y += self.speed;
	};
});
// Assets will be automatically created based on usage in the code.
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.moveLeft = function () {
		if (self.x > 100) {
			self.x -= 100;
		}
	};
	self.moveRight = function () {
		if (self.x < 1948) {
			self.x += 100;
		}
	};
});

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

/**** 
* Game Code
****/ 
var player = game.addChild(new Player());
player.x = 1024; // Center horizontally
player.y = 2500; // Position near the bottom
var obstacles = [];
var score = 0;
var scoreTxt = new Text2(score.toString(), {
	size: 150,
	fill: "#ffffff"
});
LK.gui.top.addChild(scoreTxt);
// Calculate the number of railings that can fit on the screen
var railingWidth = 200; // The width of a railing
var screenWidth = 2048; // The width of the screen
var numRailings = Math.floor(screenWidth / railingWidth);
// Calculate the remaining space
var remainingSpace = screenWidth - numRailings * railingWidth;
// Calculate the space to add on the left and right sides of the screen
var leftRightSpace = remainingSpace / 2;
// Draw lines at the left and right boundaries
var leftLine = new Graphics();
leftLine.lineStyle(2, 0xFFFFFF, 1);
leftLine.moveTo(leftRightSpace, 0);
leftLine.lineTo(leftRightSpace, 2732);
game.addChild(leftLine);
var rightLine = new Graphics();
rightLine.lineStyle(2, 0xFFFFFF, 1);
rightLine.moveTo(screenWidth - leftRightSpace, 0);
rightLine.lineTo(screenWidth - leftRightSpace, 2732);
game.addChild(rightLine);
// Create obstacles at intervals
var obstacleTimer = LK.setInterval(function () {
	var obstacle = new Obstacle();
	obstacle.x = Math.random() * 2048; // Random horizontal position
	obstacle.y = 0; // Start from the top
	obstacles.push(obstacle);
	game.addChild(obstacle);
}, 2000);
// Handle touch events for moving the player
game.on('down', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	if (pos.x < 1024) {
		player.moveLeft();
	} else {
		player.moveRight();
	}
});
// Update game state every tick
LK.on('tick', function () {
	for (var i = obstacles.length - 1; i >= 0; i--) {
		obstacles[i].move();
		// Check for collision with player and ignore
		if (obstacles[i].intersects(player)) {
			// Do nothing
		}
		// Remove off-screen obstacles
		if (obstacles[i].y > 2732) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
			score += 1;
			scoreTxt.setText(score.toString());
		}
	}
});

===================================================================
--- original.js
+++ change.js
@@ -52,8 +52,27 @@
 	size: 150,
 	fill: "#ffffff"
 });
 LK.gui.top.addChild(scoreTxt);
+// Calculate the number of railings that can fit on the screen
+var railingWidth = 200; // The width of a railing
+var screenWidth = 2048; // The width of the screen
+var numRailings = Math.floor(screenWidth / railingWidth);
+// Calculate the remaining space
+var remainingSpace = screenWidth - numRailings * railingWidth;
+// Calculate the space to add on the left and right sides of the screen
+var leftRightSpace = remainingSpace / 2;
+// Draw lines at the left and right boundaries
+var leftLine = new Graphics();
+leftLine.lineStyle(2, 0xFFFFFF, 1);
+leftLine.moveTo(leftRightSpace, 0);
+leftLine.lineTo(leftRightSpace, 2732);
+game.addChild(leftLine);
+var rightLine = new Graphics();
+rightLine.lineStyle(2, 0xFFFFFF, 1);
+rightLine.moveTo(screenWidth - leftRightSpace, 0);
+rightLine.lineTo(screenWidth - leftRightSpace, 2732);
+game.addChild(rightLine);
 // Create obstacles at intervals
 var obstacleTimer = LK.setInterval(function () {
 	var obstacle = new Obstacle();
 	obstacle.x = Math.random() * 2048; // Random horizontal position