/****
* Classes
****/
// Define the 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 = -10;
  self.update = function () {
    self.y += self.speed;
  };
});
// Define the Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemyShip', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.update = function () {
    // Enemy update logic
  };
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Define the Player class
var Player = Container.expand(function () {
  var self = Container.call(this);
  var playerGraphics = self.attachAsset('playerShip', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.update = function () {
    // Player update logic
  };
});

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

/****
* Game Code
****/
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 - 200;
// Initialize enemies
var enemies = [];
for (var i = 0; i < 5; i++) {
  var enemy = new Enemy();
  enemy.x = 400 + i * 300;
  enemy.y = 200;
  enemies.push(enemy);
  game.addChild(enemy);
}
// Initialize bullets
var bullets = [];
// Handle shooting
game.down = function (x, y, obj) {
  var bullet = new Bullet();
  bullet.x = player.x;
  bullet.y = player.y;
  bullets.push(bullet);
  game.addChild(bullet);
};
// Update game state
game.update = function () {
  // Update bullets
  for (var i = bullets.length - 1; i >= 0; i--) {
    var bullet = bullets[i];
    bullet.update();
    if (bullet.y < -50) {
      bullet.destroy();
      bullets.splice(i, 1);
    }
  }
  // Update enemies
  for (var j = 0; j < enemies.length; j++) {
    var enemy = enemies[j];
    enemy.update();
    // Check for collision with bullets
    for (var k = bullets.length - 1; k >= 0; k--) {
      var bullet = bullets[k];
      if (bullet.intersects(enemy)) {
        bullet.destroy();
        bullets.splice(k, 1);
        enemy.destroy();
        enemies.splice(j, 1);
        break;
      }
    }
  }
};