/****
* Classes
****/
// The assets will be automatically created and loaded by the LK engine.
// Dinosaur class
var Dinosaur = Container.expand(function () {
  var self = Container.call(this);
  var dinosaurGraphics = self.attachAsset('dinosaur', {
    anchorX: 0.5,
    anchorY: 1
  });
  self.y = 2732 - dinosaurGraphics.height;
  self.jump = function () {
    self.speed = -30;
  };
  self.update = function () {
    self.speed += 1;
    self.y += self.speed;
    if (self.y > 2732 - dinosaurGraphics.height) {
      self.y = 2732 - dinosaurGraphics.height;
      self.speed = 0;
    }
  };
});
// Obstacle class
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 1
  });
  self.x = 2048;
  self.y = 2732 - obstacleGraphics.height;
  self.speed = -10;
  self.update = function () {
    self.x += self.speed;
  };
});

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

/****
* Game Code
****/
var dinosaur = game.addChild(new Dinosaur());
var obstacles = [];
game.down = function (x, y, obj) {
  dinosaur.jump();
};
game.update = function () {
  if (LK.ticks % 120 == 0) {
    var obstacle = new Obstacle();
    obstacles.push(obstacle);
    game.addChild(obstacle);
  }
  for (var i = obstacles.length - 1; i >= 0; i--) {
    if (obstacles[i].x < -obstacles[i].width) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
    } else if (dinosaur.intersects(obstacles[i])) {
      LK.showGameOver();
    }
  }
};