/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		width: 10,
		height: 20,
		color: 0xffffff,
		shape: 'box'
	});
	self.speed = -10;
	// Move bullet
	self.move = function () {
		self.y += self.speed;
	};
});
// Assets are automatically created based on usage in the code.
// Plane class
var Plane = Container.expand(function () {
	var self = Container.call(this);
	// Initialize plane with a shape asset
	var planeGraphics = self.attachAsset('plane', {
		width: 60,
		height: 60,
		color: 0xff0000,
		// Default red, will be overridden
		shape: 'ellipse'
	});
	self.speedX = 0;
	self.speedY = 0;
	// Method to update plane position
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		// Make the plane appear on the opposite side of the screen when it hits a wall
		if (self.x < 0) {
			self.x = 2048;
		} else if (self.x > 2048) {
			self.x = 0;
		}
		if (self.y < 0 || self.y > 2732) {
			LK.showGameOver();
		}
	};
	// Method to shoot a bullet
	self.shoot = function () {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullets.push(bullet);
		game.addChild(bullet);
	};
});

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

/**** 
* Game Code
****/ 
var bullets = []; // Global array to keep track of bullets
// Create two planes
var plane1 = new Plane();
plane1.x = 200;
plane1.y = 200;
plane1.speedX = 5;
plane1.speedY = 3;
plane1.attachAsset('plane', {
	color: 0x0000ff
}); // Blue color for plane1
var plane2 = new Plane();
plane2.x = 1848; // Start from the opposite side
plane2.y = 2532;
plane2.speedX = -5;
plane2.speedY = -3;
plane2.attachAsset('plane', {
	color: 0xff0000
}); // Red color for plane2
// Add planes to the game
game.addChild(plane1);
game.addChild(plane2);
// Set up game tick
LK.on('tick', function () {
	plane1.update();
	plane2.update();
	// Planes shoot bullets periodically
	if (LK.ticks % 60 == 0) {
		plane1.shoot();
		plane2.shoot();
	}
	// Update and check bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		bullets[i].move();
		// Check for bullet collision with planes
		if (bullets[i].intersects(plane1) || bullets[i].intersects(plane2)) {
			// For simplicity, just remove the bullet on collision
			bullets[i].destroy();
			bullets.splice(i, 1);
		} else if (bullets[i].y < -50 || bullets[i].y > 2782) {
			// Remove off-screen bullets
			bullets[i].destroy();
			bullets.splice(i, 1);
		}
	}
});
// Flags to track if the screen is being touched
var isTouchingLeft = false;
var isTouchingRight = false;
// Change plane direction when the screen is touched
game.on('down', function (obj) {
	var pos = obj.event.getLocalPosition(game);
	// If touch is on the left half of the screen, set isTouchingLeft to true
	if (pos.x < 1024) {
		isTouchingLeft = true;
	} else {
		// If touch is on the right half, set isTouchingRight to true
		isTouchingRight = true;
	}
});
// Stop changing plane direction when the screen is no longer being touched
game.on('up', function (obj) {
	isTouchingLeft = false;
	isTouchingRight = false;
});
// In the game tick, change plane direction while the screen is being touched
LK.on('tick', function () {
	if (isTouchingLeft) {
		var angle = Math.atan2(plane1.speedY, plane1.speedX);
		angle -= Math.PI / 90; // Subtract 2 degrees (in radians) for counter-clockwise rotation
		plane1.speedX = Math.cos(angle) * 5;
		plane1.speedY = Math.sin(angle) * 5;
	}
	if (isTouchingRight) {
		var angle = Math.atan2(plane2.speedY, plane2.speedX);
		angle -= Math.PI / 90; // Subtract 2 degrees (in radians) for counter-clockwise rotation
		plane2.speedX = Math.cos(angle) * 5;
		plane2.speedY = Math.sin(angle) * 5;
	}
});

===================================================================
--- original.js
+++ change.js
@@ -39,12 +39,10 @@
 			self.x = 2048;
 		} else if (self.x > 2048) {
 			self.x = 0;
 		}
-		if (self.y < 0) {
-			self.y = 2732;
-		} else if (self.y > 2732) {
-			self.y = 0;
+		if (self.y < 0 || self.y > 2732) {
+			LK.showGameOver();
 		}
 	};
 	// Method to shoot a bullet
 	self.shoot = function () {