/****
* Classes
****/
// Define a class for bullets
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;
    if (self.y < 0) {
      self.destroy();
    }
  };
});
// Define a class for enemies
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemy', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 3;
  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>
// Define a class for the player character
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.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 = 1024;
player.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 player movement
game.move = function (x, y, obj) {
  player.x = x;
  player.y = y;
};
// 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 < 0) {
      bullets.splice(i, 1);
    }
  }
  // Update enemies
  for (var j = 0; j < enemies.length; j++) {
    var enemy = enemies[j];
    enemy.update();
    if (player.intersects(enemy)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  }
};