/**** 
* 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.speed = 5;
	self.direction = 0;
	self.momentum = {
		x: 0,
		y: 0
	};
	self._move_migrated = function () {
		var momentumModifier = 0.1;
		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;
		carGraphics.scale.x *= -1;
	};
});
var DriftAndDodge = Container.expand(function () {
	var self = Container.call(this);
});
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();
		}
	};
});
var SnowyEmbankment = Container.expand(function () {
	var self = Container.call(this);
	var embankmentGraphics = self.attachAsset('snowyEmbankment', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});
var Tree = Container.expand(function () {
	var self = Container.call(this);
	var treeGraphics = self.attachAsset('tree', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

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

/**** 
* Game Code
****/ 
var driftAndDodge = game.addChild(new DriftAndDodge());
driftAndDodge.on('down', function (x, y, obj) {
	// Add the event handler for 'down' event here
});
driftAndDodge.on('up', function (x, y, obj) {
	// Add the event handler for 'up' event here
});
driftAndDodge.on('move', function (x, y, obj) {
	// Add the event handler for 'move' event here
});
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) * 2;
	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);
	// Attach snowy embankments to the left and right of the road segment
	var leftEmbankment = new SnowyEmbankment();
	leftEmbankment.x = segment.x - segment.width / 2;
	leftEmbankment.y = segment.y;
	roadContainer.addChild(leftEmbankment);
	var rightEmbankment = new SnowyEmbankment();
	rightEmbankment.x = segment.x + segment.width / 2;
	rightEmbankment.y = segment.y;
	roadContainer.addChild(rightEmbankment);
	// Add multiple trees to the left and right of the road segment
	var treeCount = 10;
	var minDistance = 100;
	for (var i = 0; i < treeCount; i++) {
		var noiseX = (Math.random() - 0.5) * 50; // Add noise to the x position
		var noiseY = (Math.random() - 0.5) * 50; // Add noise to the y position
		var leftTree = new Tree();
		leftTree.x = segment.x - segment.width / 2 - 200 + noiseX; // Position trees 200 units away from the racetrack
		leftTree.y = segment.y + i * minDistance + noiseY;
		roadContainer.addChild(leftTree);
		var rightTree = new Tree();
		rightTree.x = segment.x + segment.width / 2 + 200 + noiseX; // Position trees 200 units away from the racetrack
		rightTree.y = segment.y + i * minDistance + noiseY;
		roadContainer.addChild(rightTree);
	}
};
var wallpaper = game.attachAsset('wallpaper', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2
});
var particles = [];
var mainContainer = game.addChild(new Container());
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(0.5, 0);
LK.gui.top.addChild(scoreText);
var car = mainContainer.addChild(new Car());
car.x = 2048 / 2;
car.y = 2732 / 2;
var isGameOver = false;
var score = 0;
var closestSegment = null;
game.on('down', function (x, y, obj) {
	car.changeDirection();
});
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++;
		LK.setScore(score);
		scoreText.setText(score.toString());
	}
	if (!carIsOnRoad) {
		LK.showGameOver();
	} else {}
	var particle = new Particle();
	particle.alpha = Math.max(0, Math.min(1, Math.abs(car.nonTravelMomentum) / 5 - 0.5));
	if (particle.alpha > 0) {
		var noiseX = (Math.random() - 0.5) * 10;
		var noiseY = (Math.random() - 0.5) * 10;
		particle.x = car.x + noiseX;
		particle.y = car.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();
		}
		// Destroy embankments which are off screen
		if (roadSegments[i].leftEmbankment && roadSegments[i].leftEmbankment.y < -50) {
			roadSegments[i].leftEmbankment.destroy();
		}
		if (roadSegments[i].rightEmbankment && roadSegments[i].rightEmbankment.y < -50) {
			roadSegments[i].rightEmbankment.destroy();
		}
	}
});
// Add the game logic for 'DriftAndDodge' here