/****
* Classes
****/
// Bullet class
var Bullet = Container.expand(function () {
  var self = Container.call(this);
  var bulletGraphics = self.attachAsset('bullet', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = -15;
  self.update = function () {
    self.y += self.speed;
  };
});
// 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 = 5;
  self.update = function () {
    self.y += self.speed;
    if (self.y > 2732) {
      self.y = 0;
      self.x = Math.random() * 2048;
    }
  };
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Hero class
var Hero = Container.expand(function () {
  var self = Container.call(this);
  var heroGraphics = self.attachAsset('hero', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 10;
  self.update = function () {
    // Hero update logic
  };
});

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

/****
* Game Code
****/
// Initialize hero
var hero = game.addChild(new Hero());
hero.x = 1024;
hero.y = 2500;
// Initialize enemies
var enemies = [];
for (var i = 0; i < 5; i++) {
  var enemy = new Enemy();
  enemy.x = Math.random() * 2048;
  enemy.y = Math.random() * 1000;
  enemies.push(enemy);
  game.addChild(enemy);
}
// Initialize bullets
var bullets = [];
// Handle game move event
game.move = function (x, y, obj) {
  hero.x = x;
  hero.y = y;
};
// Handle game update event
game.update = function () {
  // Update bullets
  for (var i = bullets.length - 1; i >= 0; i--) {
    var bullet = bullets[i];
    bullet.update();
    if (bullet.y < 0) {
      bullet.destroy();
      bullets.splice(i, 1);
    }
  }
  // Update enemies
  for (var j = 0; j < enemies.length; j++) {
    var enemy = enemies[j];
    enemy.update();
    if (hero.intersects(enemy)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  }
  // Fire bullets
  if (LK.ticks % 20 == 0) {
    var newBullet = new Bullet();
    newBullet.x = hero.x;
    newBullet.y = hero.y;
    bullets.push(newBullet);
    game.addChild(newBullet);
  }
};