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

/**** 
* Classes
****/ 
var EnemyCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('enemy_car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 4 + Math.random() * 4;
	self.lane = Math.floor(Math.random() * 3);
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var NitroPickup = Container.expand(function () {
	var self = Container.call(this);
	var nitroGraphics = self.attachAsset('nitro_pickup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.rotationSpeed = 0.1;
	self.update = function () {
		self.y += self.speed;
		nitroGraphics.rotation += self.rotationSpeed;
		// Pulsing effect
		var scale = 1 + Math.sin(LK.ticks * 0.2) * 0.2;
		nitroGraphics.scaleX = scale;
		nitroGraphics.scaleY = scale;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('player_car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lane = 1; // 0 = left, 1 = center, 2 = right
	self.speed = 8;
	self.baseSpeed = 8;
	self.nitroSpeed = 16;
	self.isNitro = false;
	self.nitroTime = 0;
	self.targetX = 2048 / 2;
	self.moveToLane = function (newLane) {
		if (newLane >= 0 && newLane <= 2) {
			self.lane = newLane;
			var lanePositions = [2048 * 0.25, 2048 * 0.5, 2048 * 0.75];
			self.targetX = lanePositions[newLane];
		}
	};
	self.activateNitro = function () {
		if (!self.isNitro) {
			self.isNitro = true;
			self.nitroTime = 180; // 3 seconds at 60fps
			self.speed = self.nitroSpeed;
			carGraphics.tint = 0xffff00;
			LK.getSound('nitro').play();
		}
	};
	self.update = function () {
		// Move towards target lane
		var diff = self.targetX - self.x;
		if (Math.abs(diff) > 5) {
			self.x += diff * 0.15;
		}
		// Handle nitro
		if (self.isNitro) {
			self.nitroTime--;
			if (self.nitroTime <= 0) {
				self.isNitro = false;
				self.speed = self.baseSpeed;
				carGraphics.tint = 0xffffff;
			}
		}
		// Create speed trail effect
		if (LK.ticks % 5 === 0) {
			var trail = LK.getAsset('player_car', {
				anchorX: 0.5,
				anchorY: 0.5,
				alpha: 0.3,
				scaleX: 0.8,
				scaleY: 0.8
			});
			trail.x = self.x;
			trail.y = self.y + 50;
			trail.tint = self.isNitro ? 0xffff00 : 0x00ffff;
			game.addChild(trail);
			tween(trail, {
				alpha: 0,
				y: trail.y + 100
			}, {
				duration: 500,
				onFinish: function onFinish() {
					trail.destroy();
				}
			});
		}
	};
	return self;
});
var TrackLine = Container.expand(function () {
	var self = Container.call(this);
	var lineGraphics = self.attachAsset('track_line', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x0a0a1a
});

/**** 
* Game Code
****/ 
// Game variables
var playerCar;
var enemyCars = [];
var obstacles = [];
var nitroPickups = [];
var trackLines = [];
var raceDistance = 0;
var totalRaceDistance = 5000;
var currentSpeed = 8;
var isGameRunning = true;
// Lane positions
var lanePositions = [2048 * 0.25, 2048 * 0.5, 2048 * 0.75];
// UI Elements
var speedText = new Text2('SPEED: 0', {
	size: 60,
	fill: 0x00FFFF
});
speedText.anchor.set(0, 0);
speedText.x = 100;
speedText.y = 100;
LK.gui.topLeft.addChild(speedText);
var distanceText = new Text2('DISTANCE: 0', {
	size: 60,
	fill: 0xFFFFFF
});
distanceText.anchor.set(0.5, 0);
LK.gui.top.addChild(distanceText);
var positionText = new Text2('POSITION: 1st', {
	size: 60,
	fill: 0xFFFF00
});
positionText.anchor.set(1, 0);
positionText.x = -100;
positionText.y = 100;
LK.gui.topRight.addChild(positionText);
// Create player car
playerCar = game.addChild(new PlayerCar());
playerCar.x = 2048 / 2;
playerCar.y = 2732 - 300;
// Touch controls
var touchStartX = 0;
var touchStartY = 0;
var isTouching = false;
game.down = function (x, y, obj) {
	touchStartX = x;
	touchStartY = y;
	isTouching = true;
	// Tap to activate nitro
	if (!playerCar.isNitro) {
		playerCar.activateNitro();
	}
};
game.move = function (x, y, obj) {
	if (isTouching) {
		var deltaX = x - touchStartX;
		var deltaY = y - touchStartY;
		// Swipe detection for lane changes
		if (Math.abs(deltaX) > 100 && Math.abs(deltaX) > Math.abs(deltaY)) {
			if (deltaX > 0 && playerCar.lane < 2) {
				playerCar.moveToLane(playerCar.lane + 1);
				touchStartX = x; // Reset to prevent multiple lane changes
			} else if (deltaX < 0 && playerCar.lane > 0) {
				playerCar.moveToLane(playerCar.lane - 1);
				touchStartX = x; // Reset to prevent multiple lane changes
			}
		}
	}
};
game.up = function (x, y, obj) {
	isTouching = false;
};
// Create initial track lines
function createTrackLines() {
	for (var i = 0; i < 30; i++) {
		var line = new TrackLine();
		line.x = 2048 * 0.167; // Left lane divider
		line.y = i * 150 - 500;
		trackLines.push(line);
		game.addChild(line);
		var line2 = new TrackLine();
		line2.x = 2048 * 0.5; // Center lane divider
		line2.y = i * 150 - 500;
		trackLines.push(line2);
		game.addChild(line2);
		var line3 = new TrackLine();
		line3.x = 2048 * 0.833; // Right lane divider
		line3.y = i * 150 - 500;
		trackLines.push(line3);
		game.addChild(line3);
	}
}
createTrackLines();
// Spawn enemy cars
function spawnEnemyCar() {
	var enemyCar = new EnemyCar();
	enemyCar.x = lanePositions[enemyCar.lane];
	enemyCar.y = -100;
	enemyCars.push(enemyCar);
	game.addChild(enemyCar);
}
// Spawn obstacles
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = lanePositions[Math.floor(Math.random() * 3)];
	obstacle.y = -100;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
// Spawn nitro pickups
function spawnNitroPickup() {
	var nitro = new NitroPickup();
	nitro.x = lanePositions[Math.floor(Math.random() * 3)];
	nitro.y = -100;
	nitroPickups.push(nitro);
	game.addChild(nitro);
}
// Play background music
LK.playMusic('race_music');
// Main game update
game.update = function () {
	if (!isGameRunning) return;
	// Update race distance
	raceDistance += currentSpeed;
	currentSpeed = playerCar.speed;
	// Update UI
	speedText.setText('SPEED: ' + Math.floor(currentSpeed * 10));
	distanceText.setText('DISTANCE: ' + Math.floor(raceDistance / 50) + 'm');
	// Check win condition
	if (raceDistance >= totalRaceDistance) {
		isGameRunning = false;
		LK.showYouWin();
		return;
	}
	// Spawn enemies
	if (LK.ticks % 90 === 0) {
		spawnEnemyCar();
	}
	// Spawn obstacles
	if (LK.ticks % 120 === 0) {
		spawnObstacle();
	}
	// Spawn nitro pickups
	if (LK.ticks % 300 === 0) {
		spawnNitroPickup();
	}
	// Update and check enemy cars
	for (var i = enemyCars.length - 1; i >= 0; i--) {
		var enemy = enemyCars[i];
		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
		// Remove off-screen enemies
		if (enemy.lastY < 2732 && enemy.y >= 2732) {
			enemy.destroy();
			enemyCars.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (enemy.intersects(playerCar)) {
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 500);
			isGameRunning = false;
			LK.showGameOver();
			return;
		}
		enemy.lastY = enemy.y;
	}
	// Update and check obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (obstacle.lastY === undefined) obstacle.lastY = obstacle.y;
		// Remove off-screen obstacles
		if (obstacle.lastY < 2732 && obstacle.y >= 2732) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (obstacle.intersects(playerCar)) {
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 500);
			isGameRunning = false;
			LK.showGameOver();
			return;
		}
		obstacle.lastY = obstacle.y;
	}
	// Update and check nitro pickups
	for (var i = nitroPickups.length - 1; i >= 0; i--) {
		var nitro = nitroPickups[i];
		if (nitro.lastY === undefined) nitro.lastY = nitro.y;
		if (nitro.lastCollected === undefined) nitro.lastCollected = false;
		// Remove off-screen nitro
		if (nitro.lastY < 2732 && nitro.y >= 2732) {
			nitro.destroy();
			nitroPickups.splice(i, 1);
			continue;
		}
		// Check collection by player
		var currentCollected = nitro.intersects(playerCar);
		if (!nitro.lastCollected && currentCollected) {
			LK.setScore(LK.getScore() + 100);
			playerCar.activateNitro();
			nitro.destroy();
			nitroPickups.splice(i, 1);
			continue;
		}
		nitro.lastY = nitro.y;
		nitro.lastCollected = currentCollected;
	}
	// Update and recycle track lines
	for (var i = trackLines.length - 1; i >= 0; i--) {
		var line = trackLines[i];
		if (line.y > 2732 + 100) {
			line.y = -100;
		}
	}
};