/****
* Classes
****/
// Hero class
var Hero = Container.expand(function () {
  var self = Container.call(this);
  var heroGraphics = self.attachAsset('hero', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.update = function () {
    // Hero update logic
  };
  self.shoot = function () {
    // Hero shooting logic
  };
});
// Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemy', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 2;
  self.move = function () {
    self.y += self.speed;
  };
  self.shoot = function () {
    // Enemy shooting logic
  };
});
// Bullet class for hero
var HeroBullet = Container.expand(function () {
  var self = Container.call(this);
  var bulletGraphics = self.attachAsset('heroBullet', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = -10;
  self.move = function () {
    self.y += self.speed;
  };
});
// Bullet class for enemies
var EnemyBullet = Container.expand(function () {
  var self = Container.call(this);
  var bulletGraphics = self.attachAsset('enemyBullet', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.move = function () {
    self.y += self.speed;
  };
});

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

/****
* Game Code
****/
// Initialize hero
// Define assets for the hero, enemies, and bullets
var hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 - 150;
// Initialize arrays for bullets and enemies
var heroBullets = [];
var enemyBullets = [];
var enemies = [];
// Game tick event
LK.on('tick', function () {
  // Update hero
  hero.update();
  // Move and check hero bullets
  for (var i = heroBullets.length - 1; i >= 0; i--) {
    heroBullets[i].move();
    if (heroBullets[i].y < 0) {
      heroBullets[i].destroy();
      heroBullets.splice(i, 1);
    }
  }
  // Move and check enemy bullets
  for (var j = enemyBullets.length - 1; j >= 0; j--) {
    enemyBullets[j].move();
    if (enemyBullets[j].y > 2732) {
      enemyBullets[j].destroy();
      enemyBullets.splice(j, 1);
    }
  }
  // Move enemies and check for game over
  for (var k = enemies.length - 1; k >= 0; k--) {
    enemies[k].move();
    if (enemies[k].y > 2732) {
      LK.showGameOver();
    }
  }
  // Spawn enemies
  if (LK.ticks % 120 == 0) {
    var newEnemy = new Enemy();
    newEnemy.x = Math.random() * (2048 - newEnemy.width) + newEnemy.width / 2;
    newEnemy.y = -newEnemy.height / 2;
    enemies.push(newEnemy);
    game.addChild(newEnemy);
  }
});
// Touch event to move hero
game.on('down', function (obj) {
  var pos = obj.event.getLocalPosition(game);
  hero.x = pos.x;
});
// Touch event to shoot
game.on('up', function (obj) {
  var bullet = new HeroBullet();
  bullet.x = hero.x;
  bullet.y = hero.y - hero.height / 2;
  heroBullets.push(bullet);
  game.addChild(bullet);
});