/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0
});

/**** 
* Classes
****/ 
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = carGraphics.width;
	self.height = carGraphics.height;
	self.speed = 0;
	self.maxSpeed = 15;
	self.steering = 0;
	self.crashed = false;
	self.crash = function () {
		if (!self.crashed) {
			self.crashed = true;
			LK.getSound('crash').play();
			LK.effects.flashObject(self, 0xFF0000, 1000);
			// Reduce speed on crash
			self.speed = Math.max(0, self.speed - 5);
			// Reset crash state after 1 second
			LK.setTimeout(function () {
				self.crashed = false;
			}, 1000);
		}
	};
	self.update = function () {
		// Handle car physics
		if (!self.crashed) {
			self.speed = Math.min(self.maxSpeed, self.speed + 0.1);
		}
		// Apply steering if not crashed
		if (!self.crashed) {
			self.x += self.steering;
		}
		// Keep car within bounds
		if (self.x < self.width / 2) {
			self.x = self.width / 2;
		}
		if (self.x > 2048 - self.width / 2) {
			self.x = 2048 - self.width / 2;
		}
	};
	return self;
});
var TrafficCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('trafficCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = carGraphics.width;
	self.height = carGraphics.height;
	self.speed = 5;
	self.direction = Math.random() > 0.5 ? 1 : -1; // Random direction: -1 = left, 1 = right
	self.startY = 2000; // Starting Y position (further up the screen)
	self.targetY = 2732 + self.height; // Y position when fully off-screen (bottom)
	self.initialScale = 0.1;
	self.targetScale = 1.0;
	self.directionX = 0; // Horizontal movement will be calculated in update
	// Set initial scale
	self.scale.set(self.initialScale);
	self.update = function () {
		// Calculate progress towards target Y
		var progress = (self.y - self.startY) / (self.targetY - self.startY);
		progress = Math.max(0, Math.min(1, progress)); // Clamp between 0 and 1
		// Interpolate scale based on progress
		var currentScale = self.initialScale + (self.targetScale - self.initialScale) * progress;
		self.scale.set(currentScale);
		// Calculate horizontal movement based on progress and direction
		// As car gets closer to player, it moves more to the side
		self.directionX = self.direction * (2 + progress * 5);
		// Update position
		self.y += gameSpeed - self.speed;
		self.x += self.directionX;
		// Destroy if off screen
		if (self.y > self.targetY) {
			// Check against targetY
			self.destroy();
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game state variables
var gameSpeed = 10;
var gameStarted = false;
var gameTime = 30; // Initial time in seconds
var distance = 0;
var level = 1;
var checkpointDistance = 500; // Distance between checkpoints
var nextCheckpointAt = checkpointDistance;
var trafficCars = [];
var obstacles = [];
var checkpoints = [];
var timeBonuses = [];
var difficultyTimer;
// Create road
var road = LK.getAsset('road', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2
});
game.addChild(road);
// Create player car
var player = new PlayerCar();
player.x = 2048 / 2;
player.y = 2732 - 300;
game.addChild(player);
// Create UI elements
var timeText = new Text2('Time: 30', {
	size: 80,
	fill: 0xFFFFFF
});
timeText.anchor.set(0, 0);
LK.gui.topRight.addChild(timeText);
timeText.x = -250; // Offset from right edge
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
LK.gui.top.addChild(scoreText);
var levelText = new Text2('Level: 1', {
	size: 80,
	fill: 0xFFFFFF
});
levelText.anchor.set(0, 0);
LK.gui.topRight.addChild(levelText);
levelText.y = 100; // Offset below time
levelText.x = -250; // Offset from right edge
var startText = new Text2('TAP TO START', {
	size: 120,
	fill: 0xFFFFFF
});
startText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(startText);
// Functions to spawn game elements
function spawnTrafficCar() {
	var car = new TrafficCar();
	car.x = 2048 / 2; // Start in the middle of the screen
	car.y = car.startY; // Start at the defined startY
	car.speed = 3 + Math.random() * 5; // Random speed
	trafficCars.push(car);
	game.addChild(car);
	// Schedule next car spawn based on difficulty
	var nextSpawnTime = 2000 - level * 100;
	nextSpawnTime = Math.max(nextSpawnTime, 500); // Minimum 0.5 seconds
	LK.setTimeout(spawnTrafficCar, nextSpawnTime);
}
// Start game function
function startGame() {
	gameStarted = true;
	gameTime = 30;
	distance = 0;
	level = 1;
	gameSpeed = 10;
	nextCheckpointAt = checkpointDistance;
	LK.setScore(0);
	// Update UI
	scoreText.setText('Score: 0');
	timeText.setText('Time: ' + Math.ceil(gameTime));
	levelText.setText('Level: ' + level);
	// Remove start text
	LK.gui.center.removeChild(startText);
	// Start spawning game elements
	spawnTrafficCar();
	// Set timer to increase difficulty
	difficultyTimer = LK.setInterval(function () {
		if (gameStarted) {
			level++;
			gameSpeed += 1;
			levelText.setText('Level: ' + level);
		}
	}, 30000); // Increase difficulty every 30 seconds
	// Play background music
	LK.playMusic('bgmusic');
}
// Handle touch input
game.down = function (x, y) {
	if (!gameStarted) {
		startGame();
		return;
	}
	// Store starting touch position for steering
	game.lastTouchX = x;
};
game.move = function (x, y) {
	if (!gameStarted || !game.lastTouchX) {
		return;
	}
	// Calculate steering based on touch movement
	var deltaX = x - game.lastTouchX;
	player.steering = deltaX * 0.2; // Scale down movement
	// Update last position
	game.lastTouchX = x;
};
game.up = function () {
	if (gameStarted) {
		// Stop steering when touch ends
		player.steering = 0;
		game.lastTouchX = null;
	}
};
// Main game update function
game.update = function () {
	if (!gameStarted) {
		return;
	}
	// Update game time
	gameTime -= 1 / 60; // Assuming 60 FPS
	timeText.setText('Time: ' + Math.ceil(gameTime));
	// Update distance
	if (gameStarted) {
		distance += gameSpeed;
		LK.setScore(Math.floor(distance / 10));
		scoreText.setText('Score: ' + LK.getScore());
	}
	// Check for game over
	if (gameTime <= 0) {
		endGame();
		return;
	}
	// Check collisions with traffic cars
	for (var i = trafficCars.length - 1; i >= 0; i--) {
		var car = trafficCars[i];
		if (player.intersects(car) && !player.crashed) {
			player.crash();
			trafficCars.splice(i, 1);
			car.destroy();
		}
	}
};
function endGame() {
	if (!gameStarted) {
		return;
	}
	gameStarted = false;
	// Save high score
	if (LK.getScore() > storage.highScore) {
		storage.highScore = LK.getScore();
	}
	// Clear any intervals
	LK.clearInterval(difficultyTimer);
	// Show game over
	LK.showGameOver();
}