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

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collectAnimationActive = false;
	self.update = function () {
		if (!self.collectAnimationActive) {
			self.y += 4 + gameSpeed;
			// Gentle rotation animation
			coinGraphics.rotation += 0.1;
		}
	};
	self.collect = function () {
		self.collectAnimationActive = true;
		tween(self, {
			alpha: 0,
			scaleX: 1.5,
			scaleY: 1.5
		}, {
			duration: 200,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});
var EnemyCar = Container.expand(function () {
	var self = Container.call(this);
	// Randomly choose enemy car type
	var carTypes = ['enemyCar1', 'enemyCar2', 'enemyCar3'];
	var randomType = carTypes[Math.floor(Math.random() * carTypes.length)];
	var carGraphics = self.attachAsset(randomType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3 + Math.random() * 2; // Random speed between 3-5
	self.update = function () {
		self.y += self.speed + gameSpeed;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.targetX = 0;
	self.speed = 8;
	self.update = function () {
		// Smooth movement towards target position
		var diff = self.targetX - self.x;
		if (Math.abs(diff) > 2) {
			self.x += diff * 0.15;
		} else {
			self.x = self.targetX;
		}
	};
	return self;
});
var RoadLine = Container.expand(function () {
	var self = Container.call(this);
	var lineGraphics = self.attachAsset('roadLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += 8 + gameSpeed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c3e50
});

/**** 
* Game Code
****/ 
// Game variables
var player;
var enemies = [];
var coins = [];
var roadLines = [];
var gameSpeed = 0;
var speedIncrease = 0.01;
var maxSpeed = 8;
var lanes = [400, 650, 900, 1150, 1400]; // 5 lanes
var spawnTimer = 0;
var enemySpawnRate = 120; // Frames between enemy spawns
var coinSpawnRate = 300; // Frames between coin spawns
var roadLineSpawnRate = 30; // Frames between road line spawns
var distance = 0;
var coinsCollected = 0;
// Create player car
player = game.addChild(new PlayerCar());
player.x = lanes[2]; // Start in middle lane
player.y = 2400; // Near bottom of screen
player.targetX = player.x;
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
scoreText.x = 20;
scoreText.y = 120;
LK.gui.topLeft.addChild(scoreText);
var speedText = new Text2('Speed: 0', {
	size: 60,
	fill: 0xFFFFFF
});
speedText.anchor.set(1, 0);
speedText.x = -20;
speedText.y = 50;
LK.gui.topRight.addChild(speedText);
var coinsText = new Text2('Coins: 0', {
	size: 60,
	fill: 0xF1C40F
});
coinsText.anchor.set(0.5, 0);
coinsText.x = 0;
coinsText.y = 50;
LK.gui.top.addChild(coinsText);
// Touch controls
var isDragging = false;
var startX = 0;
game.down = function (x, y, obj) {
	isDragging = true;
	startX = x;
};
game.move = function (x, y, obj) {
	if (isDragging) {
		var deltaX = x - startX;
		var newTargetX = player.targetX + deltaX;
		// Constrain to lanes
		if (newTargetX < lanes[0]) newTargetX = lanes[0];
		if (newTargetX > lanes[lanes.length - 1]) newTargetX = lanes[lanes.length - 1];
		player.targetX = newTargetX;
		startX = x;
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
	// Snap to nearest lane
	var closestLane = lanes[0];
	var minDistance = Math.abs(player.x - lanes[0]);
	for (var i = 1; i < lanes.length; i++) {
		var distance = Math.abs(player.x - lanes[i]);
		if (distance < minDistance) {
			minDistance = distance;
			closestLane = lanes[i];
		}
	}
	player.targetX = closestLane;
};
function spawnEnemy() {
	var enemy = new EnemyCar();
	var randomLane = lanes[Math.floor(Math.random() * lanes.length)];
	enemy.x = randomLane;
	enemy.y = -100;
	enemies.push(enemy);
	game.addChild(enemy);
}
function spawnCoin() {
	var coin = new Coin();
	var randomLane = lanes[Math.floor(Math.random() * lanes.length)];
	coin.x = randomLane;
	coin.y = -100;
	coins.push(coin);
	game.addChild(coin);
}
function spawnRoadLine() {
	for (var i = 0; i < lanes.length - 1; i++) {
		var roadLine = new RoadLine();
		roadLine.x = (lanes[i] + lanes[i + 1]) / 2;
		roadLine.y = -50;
		roadLines.push(roadLine);
		game.addChild(roadLine);
	}
}
game.update = function () {
	// Increase game speed gradually
	if (gameSpeed < maxSpeed) {
		gameSpeed += speedIncrease;
	}
	// Update distance and score
	distance += 1 + gameSpeed;
	var totalScore = Math.floor(distance / 10) + coinsCollected * 10;
	LK.setScore(totalScore);
	// Update UI
	scoreText.setText('Score: ' + totalScore);
	speedText.setText('Speed: ' + Math.floor(gameSpeed));
	coinsText.setText('Coins: ' + coinsCollected);
	// Spawn timers
	spawnTimer++;
	// Spawn enemies
	if (spawnTimer % Math.max(40, enemySpawnRate - Math.floor(gameSpeed * 8)) === 0) {
		spawnEnemy();
	}
	// Spawn coins
	if (spawnTimer % coinSpawnRate === 0) {
		spawnCoin();
	}
	// Spawn road lines
	if (spawnTimer % roadLineSpawnRate === 0) {
		spawnRoadLine();
	}
	// Check enemy collisions and cleanup
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		// Check collision with player
		if (enemy.intersects(player)) {
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 500);
			LK.showGameOver();
			return;
		}
		// Remove enemies that are off screen
		if (enemy.y > 2800) {
			enemy.destroy();
			enemies.splice(i, 1);
		}
	}
	// Check coin collection and cleanup
	for (var j = coins.length - 1; j >= 0; j--) {
		var coin = coins[j];
		// Check collection
		if (coin.intersects(player) && !coin.collectAnimationActive) {
			LK.getSound('collectCoin').play();
			coinsCollected++;
			coin.collect();
			coins.splice(j, 1);
			continue;
		}
		// Remove coins that are off screen
		if (coin.y > 2800) {
			coin.destroy();
			coins.splice(j, 1);
		}
	}
	// Cleanup road lines
	for (var k = roadLines.length - 1; k >= 0; k--) {
		var roadLine = roadLines[k];
		if (roadLine.y > 2800) {
			roadLine.destroy();
			roadLines.splice(k, 1);
		}
	}
};

===================================================================
--- original.js
+++ change.js