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

/**** 
* Classes
****/ 
var Car = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = carGraphics.width;
	self.height = carGraphics.height;
	self.speed = 0;
	self.maxSpeed = 15;
	self.acceleration = 0.2;
	self.deceleration = 0.1;
	self.turnSpeed = 5;
	self.moving = false;
	self.accelerate = function () {
		self.moving = true;
		if (self.speed < self.maxSpeed) {
			self.speed += self.acceleration;
		}
	};
	self.brake = function () {
		if (self.speed > 0) {
			self.speed -= self.deceleration * 3;
			if (self.speed < 0) {
				self.speed = 0;
			}
		}
	};
	self.coast = function () {
		self.moving = false;
		if (self.speed > 0) {
			self.speed -= self.deceleration;
			if (self.speed < 0) {
				self.speed = 0;
			}
		}
	};
	self.turnLeft = function () {
		self.x -= self.turnSpeed * (self.speed / self.maxSpeed) * 2;
	};
	self.turnRight = function () {
		self.x += self.turnSpeed * (self.speed / self.maxSpeed) * 2;
	};
	self.update = function () {
		if (self.moving) {
			self.accelerate();
		} else {
			self.coast();
		}
		// Keep car within bounds
		if (self.x < roadLeft + self.width / 2) {
			self.x = roadLeft + self.width / 2;
		}
		if (self.x > roadRight - self.width / 2) {
			self.x = roadRight - self.width / 2;
		}
	};
	return self;
});
var Checkpoint = Container.expand(function () {
	var self = Container.call(this);
	var checkpointGraphics = self.attachAsset('checkpoint', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = checkpointGraphics.width;
	self.height = checkpointGraphics.height;
	self.update = function () {
		self.y += playerCar.speed;
		// Check if off screen
		if (self.y > 2732 + self.height) {
			self.destroy();
			var index = checkpoints.indexOf(self);
			if (index > -1) {
				checkpoints.splice(index, 1);
			}
		}
	};
	return self;
});
var Fuel = Container.expand(function () {
	var self = Container.call(this);
	var fuelGraphics = self.attachAsset('fuel', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = fuelGraphics.width;
	self.height = fuelGraphics.height;
	self.update = function () {
		self.y += playerCar.speed;
		// Check if off screen
		if (self.y > 2732 + self.height) {
			self.destroy();
			var index = fuels.indexOf(self);
			if (index > -1) {
				fuels.splice(index, 1);
			}
		}
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = obstacleGraphics.width;
	self.height = obstacleGraphics.height;
	self.speed = 5;
	self.update = function () {
		self.y += playerCar.speed;
		// Check if off screen
		if (self.y > 2732 + self.height) {
			self.destroy();
			var index = obstacles.indexOf(self);
			if (index > -1) {
				obstacles.splice(index, 1);
			}
		}
	};
	return self;
});
var RoadLine = Container.expand(function () {
	var self = Container.call(this);
	var line = self.attachAsset('roadLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + line.height) {
			self.y = -line.height;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x007700
});

/**** 
* Game Code
****/ 
// Game variables
var roadWidth = 800;
var roadLeft = (2048 - roadWidth) / 2;
var roadRight = roadLeft + roadWidth;
var gameSpeed = 1;
var score = 0;
var fuelLevel = 100;
var timeRemaining = 30;
var isGameOver = false;
var isGameStarted = false;
var lastObstacleTime = 0;
var lastFuelTime = 0;
var lastCheckpointTime = 0;
var obstacles = [];
var fuels = [];
var checkpoints = [];
var roadLines = [];
// Create road
var road = LK.getAsset('road', {
	anchorX: 0.5,
	anchorY: 0
});
road.x = 2048 / 2;
road.y = 0;
game.addChild(road);
// Create road lines
for (var i = 0; i < 20; i++) {
	var roadLine = new RoadLine();
	roadLine.x = 2048 / 2;
	roadLine.y = i * 150 - 100;
	roadLines.push(roadLine);
	game.addChild(roadLine);
}
// Create player car
var playerCar = new Car();
playerCar.x = 2048 / 2;
playerCar.y = 2732 - 500;
game.addChild(playerCar);
// Create UI elements
var scoreTxt = new Text2('SCORE: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(scoreTxt);
var fuelTxt = new Text2('FUEL: 100%', {
	size: 60,
	fill: 0xFFFFFF
});
fuelTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(fuelTxt);
var timeTxt = new Text2('TIME: 30s', {
	size: 60,
	fill: 0xFFFFFF
});
timeTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(timeTxt);
var startTxt = new Text2('TAP TO START', {
	size: 100,
	fill: 0xFFFFFF
});
startTxt.anchor.set(0.5, 0.5);
LK.gui.center.addChild(startTxt);
// Left control
var leftControlArea = new Container();
var leftControlGraphics = LK.getAsset('road', {
	anchorX: 0,
	anchorY: 0,
	width: 2048 / 2,
	height: 2732,
	alpha: 0
});
leftControlArea.addChild(leftControlGraphics);
game.addChild(leftControlArea);
// Right control
var rightControlArea = new Container();
var rightControlGraphics = LK.getAsset('road', {
	anchorX: 0,
	anchorY: 0,
	width: 2048 / 2,
	height: 2732,
	alpha: 0
});
rightControlArea.x = 2048 / 2;
rightControlArea.addChild(rightControlGraphics);
game.addChild(rightControlArea);
// Controls
var leftPressed = false;
var rightPressed = false;
// Event handlers
game.down = function (x, y, obj) {
	if (!isGameStarted) {
		startGame();
		return;
	}
	if (x < 2048 / 2) {
		leftPressed = true;
	} else {
		rightPressed = true;
	}
};
game.up = function (x, y, obj) {
	if (x < 2048 / 2) {
		leftPressed = false;
	} else {
		rightPressed = false;
	}
};
game.move = function (x, y, obj) {
	// No additional move handling needed
};
// Game functions
function startGame() {
	isGameStarted = true;
	startTxt.visible = false;
	score = 0;
	fuelLevel = 100;
	timeRemaining = 30;
	isGameOver = false;
	playerCar.speed = 0;
	// Clear existing objects
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].destroy();
	}
	obstacles = [];
	for (var i = 0; i < fuels.length; i++) {
		fuels[i].destroy();
	}
	fuels = [];
	for (var i = 0; i < checkpoints.length; i++) {
		checkpoints[i].destroy();
	}
	checkpoints = [];
	// Start the timer
	startTimer();
	// Start background music
	LK.playMusic('bgmusic');
}
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = roadLeft + Math.random() * roadWidth;
	obstacle.y = -obstacle.height;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnFuel() {
	var fuel = new Fuel();
	fuel.x = roadLeft + Math.random() * roadWidth;
	fuel.y = -fuel.height;
	fuels.push(fuel);
	game.addChild(fuel);
}
function spawnCheckpoint() {
	var checkpoint = new Checkpoint();
	checkpoint.x = 2048 / 2;
	checkpoint.y = -checkpoint.height;
	checkpoints.push(checkpoint);
	game.addChild(checkpoint);
}
function startTimer() {
	LK.clearInterval(gameTimer);
	gameTimer = LK.setInterval(function () {
		if (isGameStarted && !isGameOver) {
			timeRemaining--;
			timeTxt.setText('TIME: ' + timeRemaining + 's');
			if (timeRemaining <= 0) {
				gameOver();
			}
		}
	}, 1000);
}
function gameOver() {
	isGameOver = true;
	LK.showGameOver();
	LK.stopMusic();
}
// Main game loop
var gameTimer;
game.update = function () {
	if (!isGameStarted || isGameOver) {
		return;
	}
	// Update score
	score += playerCar.speed * 0.1;
	scoreTxt.setText('SCORE: ' + Math.floor(score));
	// Update fuel
	fuelLevel -= 0.05 * (playerCar.speed / playerCar.maxSpeed);
	if (fuelLevel <= 0) {
		fuelLevel = 0;
		gameOver();
	}
	fuelTxt.setText('FUEL: ' + Math.floor(fuelLevel) + '%');
	// Handle controls
	if (leftPressed) {
		playerCar.turnLeft();
	}
	if (rightPressed) {
		playerCar.turnRight();
	}
	if (leftPressed || rightPressed) {
		playerCar.accelerate();
	} else {
		playerCar.coast();
	}
	// Spawn objects
	if (LK.ticks - lastObstacleTime > 90) {
		spawnObstacle();
		lastObstacleTime = LK.ticks;
	}
	if (LK.ticks - lastFuelTime > 180) {
		spawnFuel();
		lastFuelTime = LK.ticks;
	}
	if (LK.ticks - lastCheckpointTime > 600) {
		spawnCheckpoint();
		lastCheckpointTime = LK.ticks;
	}
	// Update road lines
	for (var i = 0; i < roadLines.length; i++) {
		roadLines[i].speed = playerCar.speed;
		roadLines[i].update();
	}
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.update();
		// Check collision
		if (playerCar.intersects(obstacle)) {
			LK.getSound('crash').play();
			LK.effects.flashObject(playerCar, 0xFF0000, 500);
			playerCar.speed *= 0.5;
			score -= 50;
			fuelLevel -= fuelLevel * 0.29; // Reduce fuel by 29%
			if (score < 0) {
				score = 0;
			}
			// Remove obstacle
			obstacle.destroy();
			obstacles.splice(i, 1);
		}
	}
	// Update fuels
	for (var i = fuels.length - 1; i >= 0; i--) {
		var fuel = fuels[i];
		fuel.update();
		// Check collection
		if (playerCar.intersects(fuel)) {
			LK.getSound('pickup').play();
			LK.effects.flashObject(fuel, 0x00FF00, 300);
			fuelLevel += 20;
			if (fuelLevel > 100) {
				fuelLevel = 100;
			}
			// Remove fuel
			fuel.destroy();
			fuels.splice(i, 1);
		}
	}
	// Update checkpoints
	for (var i = checkpoints.length - 1; i >= 0; i--) {
		var checkpoint = checkpoints[i];
		checkpoint.update();
		// Check collection
		if (playerCar.intersects(checkpoint)) {
			LK.getSound('checkpoint_reached').play();
			LK.effects.flashScreen(0xFFFF00, 300);
			timeRemaining += 15;
			score += 100;
			// Remove checkpoint
			checkpoint.destroy();
			checkpoints.splice(i, 1);
		}
	}
	// Update player car
	playerCar.update();
};

===================================================================
--- original.js
+++ change.js
@@ -387,8 +387,9 @@
 			LK.getSound('crash').play();
 			LK.effects.flashObject(playerCar, 0xFF0000, 500);
 			playerCar.speed *= 0.5;
 			score -= 50;
+			fuelLevel -= fuelLevel * 0.29; // Reduce fuel by 29%
 			if (score < 0) {
 				score = 0;
 			}
 			// Remove obstacle