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

/**** 
* Classes
****/ 
var Bush = Container.expand(function () {
	var self = Container.call(this);
	var bushGraphics = self.attachAsset('bush', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = 6;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Car = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.targetX = 0;
	self.lane = 1; // 0=left, 1=center, 2=right
	return self;
});
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.lastY = 0;
	self.lastIntersecting = false;
	self.update = function () {
		self.y += self.speed;
		coinGraphics.rotation += 0.1;
	};
	return self;
});
var EnemyCar = Container.expand(function () {
	var self = Container.call(this);
	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 = 8;
	self.lastY = 0;
	self.lastIntersecting = false;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var FuelTank = Container.expand(function () {
	var self = Container.call(this);
	var fuelTankGraphics = self.attachAsset('fuelTank', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.lastY = 0;
	self.lastIntersecting = false;
	self.update = function () {
		self.y += self.speed;
		fuelTankGraphics.rotation += 0.05;
	};
	return self;
});
var RoadLine = Container.expand(function () {
	var self = Container.call(this);
	var lineGraphics = self.attachAsset('roadLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Tree = Container.expand(function () {
	var self = Container.call(this);
	var treeGraphics = self.attachAsset('tree', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = 6;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var playerCar;
var enemyCars = [];
var coins = [];
var roadLines = [];
var trees = [];
var bushes = [];
var gameSpeed = 6;
var lanes = [2048 / 4, 2048 / 2, 3 * 2048 / 4]; // Three lanes
var spawnTimer = 0;
var coinSpawnTimer = 0;
var roadLineSpawnTimer = 0;
var treeSpawnTimer = 0;
var bushSpawnTimer = 0;
var distanceScore = 0;
var fuelTanks = [];
var fuelTankSpawnTimer = 0;
var currentFuel = 100;
var maxFuel = 100;
var fuelConsumptionRate = 0.1;
var dragActive = false;
var showingLeaderboard = false;
var leaderboardContainer;
var leaderboardScores = storage.leaderboard || [];
// Create score display using asset
var scoreDisplay = LK.getAsset('Score', {
	anchorX: 0.5,
	anchorY: 0
});
LK.gui.top.addChild(scoreDisplay);
// Create score text display
var scoreTxt = new Text2('0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
scoreTxt.x = scoreDisplay.x + 60; // Position next to score image
scoreTxt.y = scoreDisplay.y;
LK.gui.top.addChild(scoreTxt);
// Create score button to show/hide score
var scoreButton = new Text2('📊', {
	size: 80,
	fill: 0x00FF00
});
scoreButton.anchor.set(0.5, 0);
scoreButton.x = 2048 - 200;
scoreButton.y = 20;
LK.gui.top.addChild(scoreButton);
// Create leaderboard button
var leaderboardButton = new Text2('🏆', {
	size: 80,
	fill: 0xFFD700
});
leaderboardButton.anchor.set(0.5, 0);
leaderboardButton.x = 2048 - 100;
leaderboardButton.y = 20;
LK.gui.top.addChild(leaderboardButton);
// Score visibility state
var showScore = true;
// Create distance display
var distanceTxt = new Text2('Distance: 0m', {
	size: 60,
	fill: 0xFFFFFF
});
distanceTxt.anchor.set(0.5, 0);
distanceTxt.y = 100;
LK.gui.top.addChild(distanceTxt);
// Create speedometer display
var speedometerTxt = new Text2('Speed: 0 km/h', {
	size: 60,
	fill: 0xFFFFFF
});
speedometerTxt.anchor.set(0.5, 0);
speedometerTxt.y = 170;
LK.gui.top.addChild(speedometerTxt);
// Create fuel display
var fuelTxt = new Text2('Fuel: 100%', {
	size: 60,
	fill: 0x00FF00
});
fuelTxt.anchor.set(0.5, 0);
fuelTxt.y = 240;
LK.gui.top.addChild(fuelTxt);
// Create left arrow button
var leftArrow = LK.getAsset('Oktusu', {
	width: 250,
	height: 250,
	anchorX: 0.5,
	anchorY: 0.5
});
leftArrow.x = 100;
leftArrow.y = 2732 - 200;
game.addChild(leftArrow);
// Create left arrow text
var leftArrowTxt = new Text2('←', {
	size: 80,
	fill: 0xFFFFFF
});
leftArrowTxt.anchor.set(0.5, 0.5);
leftArrowTxt.x = leftArrow.x;
leftArrowTxt.y = leftArrow.y;
game.addChild(leftArrowTxt);
// Create right arrow button
var rightArrow = LK.getAsset('Oktusu', {
	width: 250,
	height: 250,
	anchorX: 0.5,
	anchorY: 0.5
});
rightArrow.x = 400;
rightArrow.y = 2732 - 200;
game.addChild(rightArrow);
// Create right arrow text
var rightArrowTxt = new Text2('→', {
	size: 80,
	fill: 0xFFFFFF
});
rightArrowTxt.anchor.set(0.5, 0.5);
rightArrowTxt.x = rightArrow.x;
rightArrowTxt.y = rightArrow.y;
game.addChild(rightArrowTxt);
// Create gas pedal
var gasPedal = LK.getAsset('Gaz', {
	width: 350,
	height: 350,
	anchorX: 0.5,
	anchorY: 0.5
});
gasPedal.x = 2048 - 200;
gasPedal.y = 2732 - 350;
game.addChild(gasPedal);
// Create gas pedal text
var gasPedalTxt = new Text2('GAS', {
	size: 70,
	fill: 0xFFFFFF
});
gasPedalTxt.anchor.set(0.5, 0.5);
gasPedalTxt.x = gasPedal.x;
gasPedalTxt.y = gasPedal.y;
game.addChild(gasPedalTxt);
// Gas pedal variables
var isGasPedalPressed = false;
var boostMultiplier = 1.0;
// Function to show leaderboard
function showLeaderboard() {
	if (showingLeaderboard) return;
	showingLeaderboard = true;
	leaderboardContainer = new Container();
	game.addChild(leaderboardContainer);
	// Semi-transparent background
	var background = LK.getAsset('highway', {
		width: 1800,
		height: 2200,
		anchorX: 0.5,
		anchorY: 0.5
	});
	background.x = 2048 / 2;
	background.y = 2732 / 2;
	background.alpha = 0.8;
	background.tint = 0x000000;
	leaderboardContainer.addChild(background);
	// Title
	var titleText = new Text2('🏆 TOP SCORES 🏆', {
		size: 100,
		fill: 0xFFD700
	});
	titleText.anchor.set(0.5, 0);
	titleText.x = 2048 / 2;
	titleText.y = 400;
	leaderboardContainer.addChild(titleText);
	// Display top 10 scores
	var sortedScores = leaderboardScores.slice().sort(function (a, b) {
		return b - a;
	});
	for (var i = 0; i < Math.min(10, sortedScores.length); i++) {
		var rankText = new Text2(i + 1 + '. ' + sortedScores[i] + ' points', {
			size: 80,
			fill: i < 3 ? 0xFFD700 : 0xFFFFFF
		});
		rankText.anchor.set(0.5, 0);
		rankText.x = 2048 / 2;
		rankText.y = 600 + i * 120;
		leaderboardContainer.addChild(rankText);
	}
	// Close button
	var closeButton = new Text2('❌ CLOSE', {
		size: 80,
		fill: 0xFF4444
	});
	closeButton.anchor.set(0.5, 0);
	closeButton.x = 2048 / 2;
	closeButton.y = 2200;
	leaderboardContainer.addChild(closeButton);
}
// Function to hide leaderboard
function hideLeaderboard() {
	if (!showingLeaderboard) return;
	showingLeaderboard = false;
	if (leaderboardContainer) {
		leaderboardContainer.destroy();
		leaderboardContainer = null;
	}
}
// Function to save score to leaderboard
function saveScore(score) {
	leaderboardScores.push(score);
	leaderboardScores.sort(function (a, b) {
		return b - a;
	});
	// Keep only top 20 scores
	if (leaderboardScores.length > 20) {
		leaderboardScores = leaderboardScores.slice(0, 20);
	}
	storage.leaderboard = leaderboardScores;
}
// Create player car
playerCar = game.addChild(new Car());
playerCar.x = lanes[1]; // Start in middle lane
playerCar.y = 2732 - 300;
playerCar.targetX = playerCar.x;
// Touch controls
game.down = function (x, y, obj) {
	// Check if leaderboard is showing and handle close button
	if (showingLeaderboard) {
		var closeButtonBounds = {
			left: 2048 / 2 - 150,
			right: 2048 / 2 + 150,
			top: 2200 - 50,
			bottom: 2200 + 50
		};
		if (x >= closeButtonBounds.left && x <= closeButtonBounds.right && y >= closeButtonBounds.top && y <= closeButtonBounds.bottom) {
			hideLeaderboard();
			return;
		}
		// Ignore other touches when leaderboard is showing
		return;
	}
	// Check if score button is pressed
	var scoreBounds = {
		left: scoreButton.x - 50,
		right: scoreButton.x + 50,
		top: scoreButton.y,
		bottom: scoreButton.y + 80
	};
	if (x >= scoreBounds.left && x <= scoreBounds.right && y >= scoreBounds.top && y <= scoreBounds.bottom) {
		showScore = !showScore;
		if (showScore) {
			scoreDisplay.alpha = 1;
			scoreTxt.alpha = 1;
		} else {
			scoreDisplay.alpha = 0;
			scoreTxt.alpha = 0;
		}
		return;
	}
	// Check if leaderboard button is pressed
	var leaderboardBounds = {
		left: leaderboardButton.x - 50,
		right: leaderboardButton.x + 50,
		top: leaderboardButton.y,
		bottom: leaderboardButton.y + 80
	};
	if (x >= leaderboardBounds.left && x <= leaderboardBounds.right && y >= leaderboardBounds.top && y <= leaderboardBounds.bottom) {
		showLeaderboard();
		return;
	}
	// Check if gas pedal is pressed first
	var gasPedalBounds = {
		left: gasPedal.x - 175,
		right: gasPedal.x + 175,
		top: gasPedal.y - 175,
		bottom: gasPedal.y + 175
	};
	if (x >= gasPedalBounds.left && x <= gasPedalBounds.right && y >= gasPedalBounds.top && y <= gasPedalBounds.bottom) {
		isGasPedalPressed = true;
		gasPedal.tint = 0xffff00; // Yellow when pressed
	}
	// Check if left arrow is pressed
	var leftArrowBounds = {
		left: leftArrow.x - 125,
		right: leftArrow.x + 125,
		top: leftArrow.y - 125,
		bottom: leftArrow.y + 125
	};
	if (x >= leftArrowBounds.left && x <= leftArrowBounds.right && y >= leftArrowBounds.top && y <= leftArrowBounds.bottom) {
		// Move car to left lane
		if (playerCar.lane > 0) {
			playerCar.lane--;
			playerCar.targetX = lanes[playerCar.lane];
		}
		leftArrow.tint = 0xffff00; // Yellow when pressed
	}
	// Check if right arrow is pressed
	var rightArrowBounds = {
		left: rightArrow.x - 125,
		right: rightArrow.x + 125,
		top: rightArrow.y - 125,
		bottom: rightArrow.y + 125
	};
	if (x >= rightArrowBounds.left && x <= rightArrowBounds.right && y >= rightArrowBounds.top && y <= rightArrowBounds.bottom) {
		// Move car to right lane
		if (playerCar.lane < 2) {
			playerCar.lane++;
			playerCar.targetX = lanes[playerCar.lane];
		}
		rightArrow.tint = 0xffff00; // Yellow when pressed
	}
	// Handle drag controls for general screen touches
	if (!(x >= leftArrowBounds.left && x <= leftArrowBounds.right && y >= leftArrowBounds.top && y <= leftArrowBounds.bottom) && !(x >= rightArrowBounds.left && x <= rightArrowBounds.right && y >= rightArrowBounds.top && y <= rightArrowBounds.bottom) && !(x >= gasPedalBounds.left && x <= gasPedalBounds.right && y >= gasPedalBounds.top && y <= gasPedalBounds.bottom)) {
		dragActive = true;
		// Move car to closest lane based on touch position
		var closestLane = 1;
		var minDistance = Math.abs(x - lanes[1]);
		for (var i = 0; i < lanes.length; i++) {
			var distance = Math.abs(x - lanes[i]);
			if (distance < minDistance) {
				minDistance = distance;
				closestLane = i;
			}
		}
		playerCar.lane = closestLane;
		playerCar.targetX = lanes[closestLane];
	}
};
game.move = function (x, y, obj) {
	// Don't allow movement when leaderboard is showing
	if (showingLeaderboard) return;
	// Allow steering even when gas pedal is pressed
	var gasPedalBounds = {
		left: gasPedal.x - 175,
		right: gasPedal.x + 175,
		top: gasPedal.y - 175,
		bottom: gasPedal.y + 175
	};
	var leftArrowBounds = {
		left: leftArrow.x - 125,
		right: leftArrow.x + 125,
		top: leftArrow.y - 125,
		bottom: leftArrow.y + 125
	};
	var rightArrowBounds = {
		left: rightArrow.x - 125,
		right: rightArrow.x + 125,
		top: rightArrow.y - 125,
		bottom: rightArrow.y + 125
	};
	// Allow movement if dragging or if touch is outside control areas
	if (dragActive || !(x >= leftArrowBounds.left && x <= leftArrowBounds.right && y >= leftArrowBounds.top && y <= leftArrowBounds.bottom) && !(x >= rightArrowBounds.left && x <= rightArrowBounds.right && y >= rightArrowBounds.top && y <= rightArrowBounds.bottom) && !(x >= gasPedalBounds.left && x <= gasPedalBounds.right && y >= gasPedalBounds.top && y <= gasPedalBounds.bottom)) {
		// Move car to closest lane based on drag position
		var closestLane = 1;
		var minDistance = Math.abs(x - lanes[1]);
		for (var i = 0; i < lanes.length; i++) {
			var distance = Math.abs(x - lanes[i]);
			if (distance < minDistance) {
				minDistance = distance;
				closestLane = i;
			}
		}
		playerCar.lane = closestLane;
		playerCar.targetX = lanes[closestLane];
	}
};
game.up = function (x, y, obj) {
	// Don't process touches when leaderboard is showing
	if (showingLeaderboard) return;
	dragActive = false;
	// Reset arrow button colors
	leftArrow.tint = 0xffffff;
	rightArrow.tint = 0xffffff;
	// Only release gas pedal if the touch was released within gas pedal bounds
	var gasPedalBounds = {
		left: gasPedal.x - 175,
		right: gasPedal.x + 175,
		top: gasPedal.y - 175,
		bottom: gasPedal.y + 175
	};
	if (isGasPedalPressed && x >= gasPedalBounds.left && x <= gasPedalBounds.right && y >= gasPedalBounds.top && y <= gasPedalBounds.bottom) {
		isGasPedalPressed = false;
		gasPedal.tint = 0xffffff; // Back to normal color
	}
};
// Main game loop
game.update = function () {
	// Don't update game when leaderboard is showing
	if (showingLeaderboard) return;
	// Smooth car movement to target lane
	var moveSpeed = 15;
	if (Math.abs(playerCar.x - playerCar.targetX) > moveSpeed) {
		if (playerCar.x < playerCar.targetX) {
			playerCar.x += moveSpeed;
		} else {
			playerCar.x -= moveSpeed;
		}
	} else {
		playerCar.x = playerCar.targetX;
	}
	// Increase game speed over time
	gameSpeed += 0.002;
	// Apply boost when gas pedal is pressed with smooth transition
	if (isGasPedalPressed) {
		// Smoothly increase speed to 2.0 over 1 second
		tween(this, {
			boostMultiplier: 2.0
		}, {
			duration: 1000,
			easing: tween.easeOut
		});
	} else {
		// Smoothly decrease speed to 1.0 over 0.5 seconds
		tween(this, {
			boostMultiplier: 1.0
		}, {
			duration: 500,
			easing: tween.easeOut
		});
	}
	// Limit effective speed to prevent exceeding 150 km/h
	var maxEffectiveSpeed = 15; // 15 * 10 = 150 km/h display limit
	var effectiveSpeed = Math.min(gameSpeed * boostMultiplier, maxEffectiveSpeed);
	var speedLimitRatio = effectiveSpeed / (gameSpeed * boostMultiplier);
	// Update distance score
	distanceScore += effectiveSpeed * 0.1;
	distanceTxt.setText('Distance: ' + Math.floor(distanceScore) + 'm');
	// Update speedometer display
	var currentSpeed = Math.floor(gameSpeed * boostMultiplier * 10); // Convert to km/h scale
	// Limit maximum displayed speed to 150 km/h
	currentSpeed = Math.min(currentSpeed, 150);
	speedometerTxt.setText('Speed: ' + currentSpeed + ' km/h');
	// Spawn road lines
	roadLineSpawnTimer++;
	if (roadLineSpawnTimer >= 20) {
		roadLineSpawnTimer = 0;
		for (var i = 0; i < 2; i++) {
			var roadLine = new RoadLine();
			roadLine.x = lanes[0] + i * (lanes[2] - lanes[0]);
			roadLine.y = -50;
			roadLine.speed = effectiveSpeed;
			roadLines.push(roadLine);
			game.addChild(roadLine);
		}
	}
	// Spawn enemy cars
	spawnTimer++;
	// Increase spawn rate based on score and distance
	var spawnRateBonus = Math.floor(LK.getScore() / 100) + Math.floor(distanceScore / 1000);
	var baseSpawnRate = Math.max(20, 90 - Math.floor(gameSpeed) - spawnRateBonus);
	if (spawnTimer >= baseSpawnRate) {
		spawnTimer = 0;
		var enemyCar = new EnemyCar();
		var randomLane = Math.floor(Math.random() * 3);
		enemyCar.x = lanes[randomLane];
		enemyCar.y = -100;
		enemyCar.speed = (gameSpeed + Math.random() * 3) * boostMultiplier;
		enemyCar.lastY = enemyCar.y;
		enemyCar.lastIntersecting = enemyCar.intersects(playerCar);
		enemyCars.push(enemyCar);
		game.addChild(enemyCar);
	}
	// Spawn trees
	treeSpawnTimer++;
	if (treeSpawnTimer >= 60) {
		treeSpawnTimer = 0;
		// Spawn trees on left side
		if (Math.random() < 0.8) {
			var leftTree = new Tree();
			leftTree.x = Math.random() * (lanes[0] - 100); // Random position on left side
			leftTree.y = -100;
			leftTree.speed = effectiveSpeed;
			trees.push(leftTree);
			game.addChild(leftTree);
		}
		// Spawn trees on right side
		if (Math.random() < 0.8) {
			var rightTree = new Tree();
			rightTree.x = lanes[2] + 100 + Math.random() * (2048 - lanes[2] - 200); // Random position on right side
			rightTree.y = -100;
			rightTree.speed = effectiveSpeed;
			trees.push(rightTree);
			game.addChild(rightTree);
		}
	}
	// Spawn bushes
	bushSpawnTimer++;
	if (bushSpawnTimer >= 40) {
		bushSpawnTimer = 0;
		// Spawn bushes on left side between trees
		if (Math.random() < 0.6) {
			var leftBush = new Bush();
			leftBush.x = Math.random() * (lanes[0] - 50); // Random position on left side
			leftBush.y = -50;
			leftBush.speed = effectiveSpeed;
			bushes.push(leftBush);
			game.addChild(leftBush);
		}
		// Spawn bushes on right side between trees
		if (Math.random() < 0.6) {
			var rightBush = new Bush();
			rightBush.x = lanes[2] + 50 + Math.random() * (2048 - lanes[2] - 150); // Random position on right side
			rightBush.y = -50;
			rightBush.speed = effectiveSpeed;
			bushes.push(rightBush);
			game.addChild(rightBush);
		}
	}
	// Spawn coins
	coinSpawnTimer++;
	if (coinSpawnTimer >= 120) {
		coinSpawnTimer = 0;
		if (Math.random() < 0.7) {
			var coin = new Coin();
			var randomLane = Math.floor(Math.random() * 3);
			coin.x = lanes[randomLane];
			coin.y = -50;
			coin.speed = effectiveSpeed;
			coin.lastY = coin.y;
			coin.lastIntersecting = coin.intersects(playerCar);
			coins.push(coin);
			game.addChild(coin);
		}
	}
	// Spawn fuel tanks
	fuelTankSpawnTimer++;
	if (fuelTankSpawnTimer >= 150) {
		fuelTankSpawnTimer = 0;
		if (Math.random() < 0.7) {
			var fuelTank = new FuelTank();
			var randomLane = Math.floor(Math.random() * 3);
			fuelTank.x = lanes[randomLane];
			fuelTank.y = -50;
			fuelTank.speed = effectiveSpeed;
			fuelTank.lastY = fuelTank.y;
			fuelTank.lastIntersecting = fuelTank.intersects(playerCar);
			fuelTanks.push(fuelTank);
			game.addChild(fuelTank);
		}
	}
	// Update and check road lines
	for (var i = roadLines.length - 1; i >= 0; i--) {
		var roadLine = roadLines[i];
		roadLine.speed = effectiveSpeed;
		if (roadLine.lastY === undefined) roadLine.lastY = roadLine.y;
		// Remove road lines that go off screen
		if (roadLine.lastY <= 2732 + 50 && roadLine.y > 2732 + 50) {
			roadLine.destroy();
			roadLines.splice(i, 1);
			continue;
		}
		roadLine.lastY = roadLine.y;
	}
	// Update and check enemy cars
	for (var i = enemyCars.length - 1; i >= 0; i--) {
		var enemyCar = enemyCars[i];
		// Increase enemy speed based on score and distance
		var speedBonus = Math.floor(LK.getScore() / 50) + Math.floor(distanceScore / 500);
		var enemyBaseSpeed = (gameSpeed + 2 + speedBonus) * boostMultiplier;
		enemyCar.speed = Math.min(enemyBaseSpeed, maxEffectiveSpeed + 2);
		// Remove cars that go off screen
		if (enemyCar.lastY <= 2732 + 100 && enemyCar.y > 2732 + 100) {
			enemyCar.destroy();
			enemyCars.splice(i, 1);
			continue;
		}
		// Check collision with player
		var currentIntersecting = enemyCar.intersects(playerCar);
		if (!enemyCar.lastIntersecting && currentIntersecting) {
			// Collision detected - game over
			saveScore(LK.getScore());
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		enemyCar.lastY = enemyCar.y;
		enemyCar.lastIntersecting = currentIntersecting;
	}
	// Update and check trees
	for (var i = trees.length - 1; i >= 0; i--) {
		var tree = trees[i];
		tree.speed = effectiveSpeed;
		if (tree.lastY === undefined) tree.lastY = tree.y;
		// Remove trees that go off screen
		if (tree.lastY <= 2732 + 100 && tree.y > 2732 + 100) {
			tree.destroy();
			trees.splice(i, 1);
			continue;
		}
		tree.lastY = tree.y;
	}
	// Update and check bushes
	for (var i = bushes.length - 1; i >= 0; i--) {
		var bush = bushes[i];
		bush.speed = effectiveSpeed;
		if (bush.lastY === undefined) bush.lastY = bush.y;
		// Remove bushes that go off screen
		if (bush.lastY <= 2732 + 50 && bush.y > 2732 + 50) {
			bush.destroy();
			bushes.splice(i, 1);
			continue;
		}
		bush.lastY = bush.y;
	}
	// Update and check coins
	for (var i = coins.length - 1; i >= 0; i--) {
		var coin = coins[i];
		coin.speed = effectiveSpeed;
		// Remove coins that go off screen
		if (coin.lastY <= 2732 + 50 && coin.y > 2732 + 50) {
			coin.destroy();
			coins.splice(i, 1);
			continue;
		}
		// Check collection by player
		var currentIntersecting = coin.intersects(playerCar);
		if (!coin.lastIntersecting && currentIntersecting) {
			// Coin collected
			LK.setScore(LK.getScore() + 10);
			scoreTxt.setText(LK.getScore().toString());
			LK.getSound('collectCoin').play();
			coin.destroy();
			coins.splice(i, 1);
			continue;
		}
		coin.lastY = coin.y;
		coin.lastIntersecting = currentIntersecting;
	}
	// Update fuel system
	currentFuel -= fuelConsumptionRate * boostMultiplier;
	if (currentFuel <= 0) {
		currentFuel = 0;
		// Game over due to no fuel
		saveScore(LK.getScore());
		LK.effects.flashScreen(0xff8800, 1000);
		LK.showGameOver();
		return;
	}
	// Update fuel display with color coding
	var fuelPercentage = Math.floor(currentFuel / maxFuel * 100);
	fuelTxt.setText('Fuel: ' + fuelPercentage + '%');
	if (fuelPercentage > 50) {
		fuelTxt.fill = 0x00FF00; // Green
	} else if (fuelPercentage > 25) {
		fuelTxt.fill = 0xFFFF00; // Yellow
	} else {
		fuelTxt.fill = 0xFF0000; // Red
	}
	// Update and check fuel tanks
	for (var i = fuelTanks.length - 1; i >= 0; i--) {
		var fuelTank = fuelTanks[i];
		fuelTank.speed = effectiveSpeed;
		// Remove fuel tanks that go off screen
		if (fuelTank.lastY <= 2732 + 50 && fuelTank.y > 2732 + 50) {
			fuelTank.destroy();
			fuelTanks.splice(i, 1);
			continue;
		}
		// Check collection by player
		var currentIntersecting = fuelTank.intersects(playerCar);
		if (!fuelTank.lastIntersecting && currentIntersecting) {
			// Fuel tank collected
			currentFuel = Math.min(currentFuel + 30, maxFuel);
			LK.setScore(LK.getScore() + 5);
			scoreTxt.setText(LK.getScore().toString());
			LK.getSound('collectCoin').play();
			fuelTank.destroy();
			fuelTanks.splice(i, 1);
			continue;
		}
		fuelTank.lastY = fuelTank.y;
		fuelTank.lastIntersecting = currentIntersecting;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -633,11 +633,11 @@
 		}
 	}
 	// Spawn fuel tanks
 	fuelTankSpawnTimer++;
-	if (fuelTankSpawnTimer >= 300) {
+	if (fuelTankSpawnTimer >= 150) {
 		fuelTankSpawnTimer = 0;
-		if (Math.random() < 0.5) {
+		if (Math.random() < 0.7) {
 			var fuelTank = new FuelTank();
 			var randomLane = Math.floor(Math.random() * 3);
 			fuelTank.x = lanes[randomLane];
 			fuelTank.y = -50;