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

/**** 
* Classes
****/ 
var Car = Container.expand(function () {
	var self = Container.call(this);
	self.projectMovement = function (vector) {
		var angle = -Math.PI / 4;
		var cosAngle = Math.cos(angle);
		var sinAngle = Math.sin(angle);
		return {
			x: vector.x * cosAngle - vector.y * sinAngle,
			y: vector.x * sinAngle + vector.y * cosAngle
		};
	};
	var carGraphics = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.ORIGINAL_SPEED = 2;
	self.speed = self.ORIGINAL_SPEED;
	self.direction = 0;
	self.momentum = {
		x: 0,
		y: 0
	};
	self._move_migrated = function () {
		var momentumModifier = 0.1;
		self.speed *= 1.01;
		if (self.direction === 0) {
			self.momentum.x += self.speed * momentumModifier;
		} else {
			self.momentum.y -= self.speed * momentumModifier;
		}
		var projectedMovement = self.projectMovement(self.momentum);
		self.x += projectedMovement.x;
		self.y += projectedMovement.y;
		var nonTravelMomentum;
		if (self.direction === 0) {
			self.momentum.x *= 0.98;
			self.momentum.y *= 0.95;
			nonTravelMomentum = self.momentum.y;
		} else {
			self.momentum.x *= 0.95;
			self.momentum.y *= 0.98;
			nonTravelMomentum = self.momentum.x;
		}
		self.nonTravelMomentum = nonTravelMomentum;
	};
	self.changeDirection = function () {
		self.direction = self.direction === 0 ? 1 : 0;
		self.speed = self.ORIGINAL_SPEED;
		carGraphics.scale.x *= -1;
		var skidSound = LK.getSound('Skid');
		skidSound.play();
		skidSound.on('end', function () {
			var engineSound = LK.getSound('Engine');
			engineSound.stop();
			engineSound.play({
				loop: true
			});
		});
	};
});
var Driver = Container.expand(function () {
	var self = Container.call(this);
	self.x = +1500;
	self.y = +1500;
	var driverGraphics = self.attachAsset('driver', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});
var Particle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.attachAsset('particle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	particleGraphics.rotation = Math.PI / 4;
	self.lifetime = 100;
	self.tick = function () {
		if (--self.lifetime <= 0) {
			self.destroy();
		}
	};
});

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

/**** 
* Game Code
****/ 
game.calculateDistanceToPoint = function (point, segmentStart, segmentEnd) {
	var A = point.x - segmentStart.x;
	var B = point.y - segmentStart.y;
	var C = segmentEnd.x - segmentStart.x;
	var D = segmentEnd.y - segmentStart.y;
	var dot = A * C + B * D;
	var len_sq = C * C + D * D;
	var param = -1;
	if (len_sq != 0) {
		param = dot / len_sq;
	}
	var xx, yy;
	if (param < 0) {
		xx = segmentStart.x;
		yy = segmentStart.y;
	} else if (param > 1) {
		xx = segmentEnd.x;
		yy = segmentEnd.y;
	} else {
		xx = segmentStart.x + param * C;
		yy = segmentStart.y + param * D;
	}
	var dx = point.x - xx;
	var dy = point.y - yy;
	return Math.sqrt(dx * dx + dy * dy);
};
game.addRoadSegment = function () {
	var lastSegment = roadSegments[roadSegments.length - 1];
	zigzag = !zigzag;
	var segment = roadContainer.attachAsset('roadSegment', {
		anchorX: 0.5
	});
	segment.width = segmentWidth;
	segmentWidth = Math.max(350, segmentWidth - 15);
	segment.height = i === 1 ? 3000 : Math.floor(Math.random() * (4000 - 1200 + 1)) + 1200;
	segment.rotation = zigzag ? -Math.PI - Math.PI / 4 : -Math.PI + Math.PI / 4;
	segment.y = currentY;
	segment.x = currentX;
	var adjustedHeight = segment.height - segmentWidth / 2;
	currentY += adjustedHeight * Math.cos(segment.rotation);
	currentX -= adjustedHeight * Math.sin(segment.rotation);
	segment.shadow = roadContainer.attachAsset('roadSegmentShadow', {
		anchorX: 0.5
	});
	segment.shadow.width = segment.width;
	segment.shadow.height = segment.height;
	segment.shadow.rotation = segment.rotation;
	segment.shadow.x = segment.x;
	segment.shadow.y = segment.y + 50;
	segment.shadow.alpha = 1;
	segment.used = false;
	roadSegments.push(segment);
	roadContainer.addChildAt(segment.shadow, 0);
	roadContainer.addChild(segment);
};
game.setBackgroundColor(0xc39977);
var particles = [];
LK.playMusic('backgroundMusic');
var mainContainer = game.addChild(new Container());
var engineSound = LK.getSound('Engine');
engineSound.stop();
engineSound.play({
	loop: true
});
var roadContainer = mainContainer.addChild(new Container());
var roadSegments = [];
var segmentLength = Math.floor(Math.random() * (1000 - 200 + 1)) + 200;
var segmentWidth = 1200;
var currentX = 2048 / 2;
var currentY = 2732 / 2;
var zigzag = true;
for (var i = 1; i <= 15; i++) {
	game.addRoadSegment();
}
var scoreText = new Text2('0', {
	size: 150,
	fill: 0xFFFFFF,
	weight: '800',
	dropShadow: true,
	dropShadowColor: '#373330',
	dropShadowBlur: 4,
	dropShadowAngle: Math.PI / 6,
	dropShadowDistance: 6
});
scoreText.anchor.set(0, 0);
LK.gui.top.addChild(scoreText);
// Import storage plugin
// High score text, smaller and below the main score
var highScore = storage.highScore || 0;
var highScoreText = new Text2('High: ' + highScore, {
	size: 60,
	fill: 0xFFFFFF,
	weight: '400',
	dropShadow: true,
	dropShadowColor: '#373330',
	dropShadowBlur: 2,
	dropShadowAngle: Math.PI / 6,
	dropShadowDistance: 3
});
highScoreText.anchor.set(0, 0);
// Position just below the scoreText (scoreText is 150px tall, add a little margin)
highScoreText.y = scoreText.height + 10;
LK.gui.top.addChild(highScoreText);
var notificationTexts = ["I'm trying.", "We can't change what's done.", "Be loyal to what matters.", "I gave you all I had.", "I tried, in the end. I did.", "You, sir, are a fish.", "LENNNNAAAAYYYY!", "Vengeance is an idiot's game.", "We're more ghosts than people.", "Oh, and a quarter. Don't forget the quarter.", "Yeah, I got TB.", "I guess I... I'm afraid."];
var usedNotificationTexts = [];
function getRandomNotificationText() {
	if (notificationTexts.length === 0) {
		notificationTexts = usedNotificationTexts.splice(0, usedNotificationTexts.length);
	}
	var index = Math.floor(Math.random() * notificationTexts.length);
	var text = notificationTexts.splice(index, 1)[0];
	usedNotificationTexts.push(text);
	return text;
}
var notificationText = new Text2(getRandomNotificationText(), {
	size: 60,
	fill: 0xFFFFFF,
	weight: '400',
	align: 'center',
	stroke: '#000000',
	strokeThickness: 8
});
notificationText.anchor.set(0, 4);
notificationText.x -= 350;
LK.gui.bottom.addChild(notificationText);
var car = mainContainer.addChild(new Car());
car.x = 2048 / 2;
car.y = 2732 / 2;
var driver = LK.gui.addChild(new Driver());
driver.x = 250;
driver.y = 1800;
var isGameOver = false;
var score = 0;
var closestSegment = null;
game.on('down', function (x, y, obj) {
	car.changeDirection();
	var engineSound = LK.getSound('Engine');
	engineSound.stop();
	engineSound.play({
		loop: true
	});
});
LK.on('retry', function () {
	LK.playMusic('backgroundMusic', {
		loop: true
	});
});
LK.on('tick', function () {
	car._move_migrated();
	var carIsOnRoad = false;
	var carPosition = {
		x: car.x,
		y: car.y
	};
	var currentClosestSegment = null;
	var currentClosestDistance = Infinity;
	roadSegments.forEach(function (segment) {
		var segmentStart = {
			x: segment.x + Math.sin(segment.rotation) * 100,
			y: segment.y - Math.cos(segment.rotation) * 100
		};
		var segmentEnd = {
			x: segment.x - Math.sin(segment.rotation) * (segment.height - segment.width / 2),
			y: segment.y + Math.cos(segment.rotation) * (segment.height - segment.width / 2)
		};
		var distance = game.calculateDistanceToPoint(carPosition, segmentStart, segmentEnd);
		if (distance < currentClosestDistance) {
			currentClosestDistance = distance;
			currentClosestSegment = segment;
		}
		if (distance < segment.width / 2 - 50) {
			carIsOnRoad = true;
		}
	});
	if (closestSegment !== currentClosestSegment && !currentClosestSegment.used) {
		closestSegment = currentClosestSegment;
		closestSegment.used = true;
		score++;
		car.ORIGINAL_SPEED += 0.1;
		scoreText.setText(score.toString());
		// Update high score if needed
		if (score > highScore) {
			highScore = score;
			storage.highScore = highScore;
			highScoreText.setText('High: ' + highScore);
		}
		notificationText.setText(getRandomNotificationText());
	}
	if (!carIsOnRoad) {
		// Play crash sound only once
		if (!car.crashPlayed) {
			car.crashPlayed = true;
			LK.getSound('Crash').play();
			// Stop the car's movement
			car.speed = 0;
			car.momentum.x = 0;
			car.momentum.y = 0;
			LK.setTimeout(function () {
				LK.showGameOver();
				LK.playMusic('backgroundMusic', {
					loop: true
				}); // Restart music from beginning after game over
			}, 1000);
		}
	} else {
		// Reset crashPlayed if back on road (optional, in case of future logic)
		car.crashPlayed = false;
	}
	var particleOffsets = [{
		x: 20,
		y: 140
	}, {
		x: 20 + 100,
		y: 140 - 100
	}, {
		x: 20 - 150,
		y: 140 - 150
	}, {
		x: 20 - 150 + 100,
		y: 140 - 150 - 100
	}];
	for (var i = 0; i < particleOffsets.length; i++) {
		var alphaValue = Math.max(0, Math.min(1, Math.abs(car.nonTravelMomentum) / 5 - 0.5));
		if (alphaValue > 0) {
			var particle = new Particle();
			particle.alpha = alphaValue;
			var noiseX = (Math.random() - 0.5) * 10;
			var noiseY = (Math.random() - 0.5) * 10;
			particle.x = car.x + (car.direction === 0 ? -1 : 1) * particleOffsets[i].x + noiseX;
			particle.y = car.y + particleOffsets[i].y + noiseY;
			mainContainer.addChildAt(particle, 1);
			particles.push(particle);
		}
	}
	particles.forEach(function (particle, index) {
		particle.tick();
		if (particle.lifetime <= 0) {
			particles.splice(index, 1);
		}
	});
	var carLocalPosition = game.toLocal(car.position, car.parent);
	var offsetX = (2048 / 2 - carLocalPosition.x) / 20;
	var offsetY = (2732 - 450 - carLocalPosition.y) / 20;
	mainContainer.x += offsetX;
	mainContainer.y += offsetY;
	for (var i = roadSegments.length - 1; i >= 0; i--) {
		var segmentGlobalPosition = game.toLocal(roadSegments[i].position, roadSegments[i].parent);
		if (segmentGlobalPosition.y - roadSegments[i].height > 2732 * 2) {
			roadSegments[i].shadow.destroy();
			roadSegments[i].destroy();
			roadSegments.splice(i, 1);
			game.addRoadSegment();
		}
	}
});

===================================================================
--- original.js
+++ change.js
@@ -241,8 +241,13 @@
 	engineSound.play({
 		loop: true
 	});
 });
+LK.on('retry', function () {
+	LK.playMusic('backgroundMusic', {
+		loop: true
+	});
+});
 LK.on('tick', function () {
 	car._move_migrated();
 	var carIsOnRoad = false;
 	var carPosition = {