/****
* Classes
****/
// 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 = Math.random() * 2 + 1; // Random speed between 1 and 3
  self.move = function () {
    self.y += self.speed;
  };
});
// Assets will be automatically created based on usage in the code.
// Player class
var Player = Container.expand(function () {
  var self = Container.call(this);
  var playerGraphics = self.attachAsset('player', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.move = function (direction) {
    if (direction === 'left' && self.x > 0) {
      self.x -= self.speed;
    } else if (direction === 'right' && self.x < 2048) {
      self.x += self.speed;
    }
  };
});

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

/****
* Game Code
****/
var player = game.addChild(new Player());
player.x = 1024; // Center horizontally
player.y = 2500; // Near bottom
var obstacles = [];
var spawnRate = 120; // Spawn an obstacle every 2 seconds
game.on('down', function (obj) {
  var pos = obj.event.getLocalPosition(game);
  if (pos.x < 1024) {
    player.move('left');
  } else {
    player.move('right');
  }
});
LK.on('tick', function () {
  // Spawn obstacles
  if (LK.ticks % spawnRate === 0) {
    var obstacle = new Obstacle();
    obstacle.x = Math.random() * 2048; // Random position across the width
    obstacle.y = 0; // Start from the top
    obstacles.push(obstacle);
    game.addChild(obstacle);
  }
  // Move obstacles
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].move();
    // Remove obstacles that are off screen
    if (obstacles[i].y > 2732) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
    }
    // Check collision with player
    if (player.intersects(obstacles[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  }
});