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

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
		// Add slight rotation animation
		coinGraphics.rotation += 0.1;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.targetX = 0;
	self.moveSpeed = 12;
	self.update = function () {
		// Smooth movement towards target position
		var dx = self.targetX - self.x;
		if (Math.abs(dx) > 5) {
			self.x += dx * 0.15;
		} else {
			self.x = self.targetX;
		}
	};
	return self;
});
var RoadLane = Container.expand(function () {
	var self = Container.call(this);
	var laneGraphics = self.attachAsset('roadLane', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var TrafficCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('trafficCar', {
		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: 0x2c3e50
});

/**** 
* Game Code
****/ 
// Game variables
var playerCar;
var trafficCars = [];
var coins = [];
var roadLanes = [];
var gameSpeed = 8;
var speedIncreaseRate = 0.002;
var trafficSpawnRate = 0.02;
var coinSpawnRate = 0.01;
var lanePositions = [512, 768, 1024, 1280, 1536]; // 5 lanes across the road
var distance = 0;
var coinCount = 0;
var isDragging = false;
// UI Elements
var scoreText = new Text2('Distance: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreText);
scoreText.x = 120; // Offset from top-left menu area
var coinText = new Text2('Coins: 0', {
	size: 60,
	fill: 0xF1C40F
});
coinText.anchor.set(1, 0);
LK.gui.topRight.addChild(coinText);
// Initialize player car
playerCar = game.addChild(new PlayerCar());
playerCar.x = lanePositions[2]; // Start in middle lane
playerCar.y = 2200; // Near bottom of screen
// Create initial road lanes for visual effect
function createRoadLane() {
	var lane = new RoadLane();
	lane.x = 1024; // Center of screen
	lane.y = -100;
	roadLanes.push(lane);
	game.addChild(lane);
}
// Initialize some road lanes
for (var i = 0; i < 20; i++) {
	createRoadLane();
	roadLanes[i].y = i * 150 - 300;
}
// Spawn traffic car
function spawnTrafficCar() {
	var car = new TrafficCar();
	car.x = lanePositions[Math.floor(Math.random() * lanePositions.length)];
	car.y = -100;
	car.speed = gameSpeed;
	trafficCars.push(car);
	game.addChild(car);
}
// Spawn coin
function spawnCoin() {
	var coin = new Coin();
	coin.x = lanePositions[Math.floor(Math.random() * lanePositions.length)];
	coin.y = -100;
	coin.speed = gameSpeed;
	coins.push(coin);
	game.addChild(coin);
}
// Handle touch/mouse input
game.down = function (x, y, obj) {
	isDragging = true;
	// Find closest lane to touch position
	var closestLane = 0;
	var minDistance = Math.abs(x - lanePositions[0]);
	for (var i = 1; i < lanePositions.length; i++) {
		var distance = Math.abs(x - lanePositions[i]);
		if (distance < minDistance) {
			minDistance = distance;
			closestLane = i;
		}
	}
	playerCar.targetX = lanePositions[closestLane];
};
game.move = function (x, y, obj) {
	if (isDragging) {
		// Find closest lane to drag position
		var closestLane = 0;
		var minDistance = Math.abs(x - lanePositions[0]);
		for (var i = 1; i < lanePositions.length; i++) {
			var distance = Math.abs(x - lanePositions[i]);
			if (distance < minDistance) {
				minDistance = distance;
				closestLane = i;
			}
		}
		playerCar.targetX = lanePositions[closestLane];
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Main game update loop
game.update = function () {
	// Increase game speed over time
	gameSpeed += speedIncreaseRate;
	distance += gameSpeed / 10;
	// Update speed for all moving objects
	for (var i = 0; i < trafficCars.length; i++) {
		trafficCars[i].speed = gameSpeed;
	}
	for (var i = 0; i < coins.length; i++) {
		coins[i].speed = gameSpeed;
	}
	for (var i = 0; i < roadLanes.length; i++) {
		roadLanes[i].speed = gameSpeed;
	}
	// Spawn traffic cars
	if (Math.random() < trafficSpawnRate + distance * 0.000005) {
		spawnTrafficCar();
	}
	// Spawn coins
	if (Math.random() < coinSpawnRate) {
		spawnCoin();
	}
	// Spawn road lanes
	if (LK.ticks % 20 === 0) {
		createRoadLane();
	}
	// Clean up and check collisions for traffic cars
	for (var i = trafficCars.length - 1; i >= 0; i--) {
		var car = trafficCars[i];
		// Remove cars that are off screen
		if (car.y > 2800) {
			car.destroy();
			trafficCars.splice(i, 1);
			continue;
		}
		// Check collision with player
		if (car.intersects(playerCar)) {
			LK.getSound('carCrash').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
	}
	// Clean up and check collection for coins
	for (var i = coins.length - 1; i >= 0; i--) {
		var coin = coins[i];
		// Remove coins that are off screen
		if (coin.y > 2800) {
			coin.destroy();
			coins.splice(i, 1);
			continue;
		}
		// Check collection by player
		if (coin.intersects(playerCar)) {
			LK.getSound('coinCollect').play();
			coinCount++;
			LK.setScore(Math.floor(distance) + coinCount * 10);
			coin.destroy();
			coins.splice(i, 1);
			// Add tween effect for coin collection
			tween(playerCar, {
				scaleX: 1.2,
				scaleY: 1.2
			}, {
				duration: 100,
				onFinish: function onFinish() {
					tween(playerCar, {
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 100
					});
				}
			});
		}
	}
	// Clean up road lanes
	for (var i = roadLanes.length - 1; i >= 0; i--) {
		var lane = roadLanes[i];
		if (lane.y > 2800) {
			lane.destroy();
			roadLanes.splice(i, 1);
		}
	}
	// Update UI
	scoreText.setText('Distance: ' + Math.floor(distance));
	coinText.setText('Coins: ' + coinCount);
	// Update total score
	LK.setScore(Math.floor(distance) + coinCount * 10);
};