/****
* Classes
****/
// Assets will be automatically created based on usage in the code.
// Bird class
var Bird = Container.expand(function () {
  var self = Container.call(this);
  var birdGraphics = self.attachAsset('bird', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = 5;
  self.move = function () {
    self.x += self.speedX;
    // Reverse direction when hitting screen bounds
    if (self.x > 2048 - birdGraphics.width / 2 || self.x < birdGraphics.width / 2) {
      self.speedX *= -1;
    }
  };
});
// Obstacle class
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedY = 3;
  self.move = function () {
    self.y += self.speedY;
    // Remove obstacle when it moves off screen
    if (self.y > 2732 + obstacleGraphics.height) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87CEEB // Light blue background to simulate sky
});

/****
* Game Code
****/
var bird = game.addChild(new Bird());
bird.x = 1024; // Start in the middle of the screen horizontally
bird.y = 1366; // Start in the middle of the screen vertically
var obstacles = [];
var spawnObstacle = function () {
  var obstacle = new Obstacle();
  obstacle.x = Math.random() * 2048; // Random horizontal position
  obstacle.y = -100; // Start just above the screen
  obstacles.push(obstacle);
  game.addChild(obstacle);
};
// Spawn an obstacle every 2 seconds
var obstacleTimer = LK.setInterval(spawnObstacle, 2000);
LK.on('tick', function () {
  bird.move();
  obstacles.forEach(function (obstacle) {
    obstacle.move();
    // Check for collision with bird
    if (bird.intersects(obstacle)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
      LK.clearInterval(obstacleTimer); // Stop spawning obstacles
    }
  });
  // Remove obstacles that have been destroyed (moved off screen)
  obstacles = obstacles.filter(function (obstacle) {
    return !obstacle.isDestroyed;
  });
});
// Initialize bird and obstacles
// Yellow bird
// Brown obstacles