/****
* Classes
****/
//<Assets used in the game will automatically appear here>
// Car class
var Car = Container.expand(function () {
  var self = Container.call(this);
  var carGraphics = self.attachAsset('car', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 0;
  self.update = function () {
    self.y += self.speed;
  };
});
// Obstacle class
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.update = function () {
    self.y += self.speed;
  };
});

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

/****
* Game Code
****/
// Initialize arrays and variables
var car;
var obstacles = [];
var scoreTxt;
var gameOver = false;
// Initialize the car
function initCar() {
  car = new Car();
  car.x = 2048 / 2;
  car.y = 2732 - 200;
  game.addChild(car);
}
// Initialize the score text
function initScore() {
  scoreTxt = new Text2('0', {
    size: 150,
    fill: "#ffffff"
  });
  scoreTxt.anchor.set(0.5, 0);
  LK.gui.top.addChild(scoreTxt);
}
// Handle move events
function handleMove(x, y, obj) {
  if (!gameOver) {
    car.x = x;
  }
}
// Handle game over
function handleGameOver() {
  gameOver = true;
  LK.effects.flashScreen(0xff0000, 1000);
  LK.showGameOver();
}
// Update game state
game.update = function () {
  if (gameOver) return;
  // Update car
  car.update();
  // Update obstacles
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].update();
    if (obstacles[i].y > 2732) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
    }
    if (car.intersects(obstacles[i])) {
      handleGameOver();
    }
  }
  // Spawn new obstacles
  if (LK.ticks % 60 == 0) {
    var newObstacle = new Obstacle();
    newObstacle.x = Math.random() * 2048;
    newObstacle.y = -50;
    obstacles.push(newObstacle);
    game.addChild(newObstacle);
  }
  // Update score
  scoreTxt.setText(LK.getScore());
};
// Initialize game elements
initCar();
initScore();
// Set event listeners
game.move = handleMove;
game.down = handleMove;
game.up = function (x, y, obj) {
  // No action needed on up event
};