/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// Define a class for enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
// Define a class for the player character
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player_run', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.jumpHeight = 40;
	self.isJumping = false;
	self.velocityY = 0;
	self.update = function () {
		if (self.isJumping) {
			self.y += self.velocityY;
			self.velocityY += 0.7; // Decreased gravity effect by 30%
			if (self.y >= 2732 / 2) {
				// Ground level
				self.y = 2732 / 2;
				self.isJumping = false;
				self.velocityY = 0;
				self.attachAsset('player_run', {
					anchorX: 0.5,
					anchorY: 0.5
				});
			}
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.velocityY = -self.jumpHeight;
			self.attachAsset('player_jump', {
				anchorX: 0.5,
				anchorY: 0.5
			});
		}
	};
});

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

/**** 
* Game Code
****/ 
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 2048;
background.y = 0;
var background2 = game.addChild(LK.getAsset('background2', {
	anchorX: 0,
	anchorY: 0
}));
background2.x = 4096;
background2.y = 0;
function switchLegs() {
	if (typeof player !== 'undefined') {
		var playerGraphics = player.attachAsset('player_run', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
	tween(playerGraphics, {
		tint: 0xFFFFFF
	}, {
		duration: 500,
		onFinish: function onFinish() {
			playerGraphics.tint = playerGraphics.tint === 0xFFFFFF ? 0xAAAAAA : 0xFFFFFF;
			switchLegs();
		}
	});
}
switchLegs();
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
// Initialize enemies
var enemies = [];
var enemySpawnInterval = 100;
var enemySpawnCounter = 0;
// Create a new Text2 object to display the score
var scoreText = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
// Add the score text to the game GUI at the top center of the screen
LK.gui.top.addChild(scoreText);
scoreText.x = 2048 / 2;
scoreText.y = 0;
// Handle game updates
game.update = function () {
	player.update();
	background.x -= 5;
	background2.x -= 5;
	if (background.x <= -2048) {
		background.x = 4096;
	}
	if (background2.x <= -2048) {
		background2.x = 4096;
	}
	// Spawn enemies
	enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048;
		enemy.y = 2732 / 2;
		enemies.push(enemy);
		game.addChild(enemy);
		// Randomize the spawn interval for the next enemy
		enemySpawnInterval = Math.floor(Math.random() * 150) + 50;
		enemySpawnCounter = 0;
	}
	// Update enemies
	for (var j = enemies.length - 1; j >= 0; j--) {
		enemies[j].update();
		if (player.intersects(enemies[j])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		} else if (player.x > enemies[j].x && !enemies[j].passed) {
			enemies[j].passed = true;
			LK.setScore(LK.getScore() + 1);
			scoreText.setText(LK.getScore());
		}
	}
};
// Handle player jump
game.down = function (x, y, obj) {
	player.jump();
};

===================================================================
--- original.js
+++ change.js
@@ -83,12 +83,14 @@
 }));
 background2.x = 4096;
 background2.y = 0;
 function switchLegs() {
-	var playerGraphics = player.attachAsset('player_run', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
+	if (typeof player !== 'undefined') {
+		var playerGraphics = player.attachAsset('player_run', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	}
 	tween(playerGraphics, {
 		tint: 0xFFFFFF
 	}, {
 		duration: 500,