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

/**** 
* Classes
****/ 
var EnemyCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('enemyCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.lane = 0;
	self.lastY = self.y;
	self.hasBeenDodged = false;
	self.update = function () {
		self.lastY = self.y;
		self.y += self.speed;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.targetLane = 1;
	self.currentLane = 1;
	self.laneWidth = 2048 / 3;
	self.isMoving = false;
	self.moveTo = function (lane) {
		if (lane !== self.currentLane && !self.isMoving) {
			self.targetLane = lane;
			self.isMoving = true;
			var targetX = self.laneWidth * lane + self.laneWidth / 2;
			tween(self, {
				x: targetX
			}, {
				duration: 200,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					self.currentLane = lane;
					self.isMoving = false;
				}
			});
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a1a
});

/**** 
* Game Code
****/ 
var playerCar = game.addChild(new PlayerCar());
playerCar.x = game.width / 2;
playerCar.y = game.height - 150;
playerCar.currentLane = 1;
var enemyCars = [];
var score = 0;
var baseSpeed = 8;
var currentSpeed = baseSpeed;
var gameActive = true;
var dodgedCount = 0;
var spawnRate = 60;
var framesSinceLastSpawn = 0;
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var speedIndicator = new Text2('Speed: 1.0x', {
	size: 80,
	fill: 0xFF6B35
});
speedIndicator.anchor.set(0.5, 0);
speedIndicator.y = 150;
LK.gui.top.addChild(speedIndicator);
function updateScore(points) {
	score += points;
	LK.setScore(Math.floor(score / 10));
	scoreTxt.setText(LK.getScore().toString());
	var speedMultiplier = 1 + LK.getScore() * 0.02;
	currentSpeed = baseSpeed * speedMultiplier;
	speedIndicator.setText('Speed: ' + speedMultiplier.toFixed(1) + 'x');
	if (LK.getScore() >= 500) {
		LK.showYouWin();
	}
}
function spawnEnemyCar() {
	var lane = Math.floor(Math.random() * 3);
	var newEnemy = game.addChild(new EnemyCar());
	var laneWidth = game.width / 3;
	newEnemy.x = laneWidth * lane + laneWidth / 2;
	newEnemy.y = -150;
	newEnemy.lane = lane;
	newEnemy.speed = currentSpeed;
	newEnemy.lastY = newEnemy.y;
	newEnemy.hasBeenDodged = false;
	enemyCars.push(newEnemy);
}
function checkCollision(enemy) {
	var playerLaneWidth = playerCar.laneWidth;
	var playerLaneX = playerCar.laneWidth * playerCar.currentLane + playerCar.laneWidth / 2;
	var enemyLaneX = playerCar.laneWidth * enemy.lane + playerCar.laneWidth / 2;
	if (playerLaneX === enemyLaneX && enemy.y >= playerCar.y - 100 && enemy.y <= playerCar.y + 100) {
		return true;
	}
	return false;
}
game.down = function (x, y, obj) {
	if (!gameActive) return;
	var touchX = x;
	var laneWidth = game.width / 3;
	if (touchX < laneWidth) {
		playerCar.moveTo(0);
	} else if (touchX < laneWidth * 2) {
		playerCar.moveTo(1);
	} else {
		playerCar.moveTo(2);
	}
};
game.update = function () {
	if (!gameActive) return;
	updateScore(1);
	framesSinceLastSpawn++;
	var adjustedSpawnRate = Math.max(20, spawnRate - Math.floor(LK.getScore() / 50));
	if (framesSinceLastSpawn >= adjustedSpawnRate) {
		spawnEnemyCar();
		framesSinceLastSpawn = 0;
	}
	for (var i = enemyCars.length - 1; i >= 0; i--) {
		var enemy = enemyCars[i];
		enemy.update();
		if (enemy.lastY !== undefined && enemy.lastY < game.height && enemy.y >= game.height) {
			if (!enemy.hasBeenDodged) {
				enemy.hasBeenDodged = true;
				updateScore(100);
				LK.getSound('dodge').play();
			}
			enemy.destroy();
			enemyCars.splice(i, 1);
			continue;
		}
		if (checkCollision(enemy)) {
			gameActive = false;
			LK.effects.flashScreen(0xFF0000, 1000);
			LK.getSound('collision').play();
			LK.showGameOver();
		}
	}
};
LK.playMusic('bgmusic', {
	loop: true
});