/****
* Classes
****/
// Bullet class
var Bullet = Container.expand(function (startX, startY, direction) {
  var self = Container.call(this);
  var bulletGraphics = self.attachAsset('bullet', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.x = startX;
  self.y = startY;
  self.speed = 10;
  self.direction = direction;
  self.update = function () {
    self.x += self.direction.x * self.speed;
    self.y += self.direction.y * self.speed;
    if (self.x < 0 || self.x > 2048 || self.y < 0 || self.y > 2732) {
      self.destroy();
    }
  };
});
// Enemy class
var Enemy = Container.expand(function (startX, startY) {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemy', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.x = startX;
  self.y = startY;
  self.speed = 2;
  self.update = function () {
    var dx = player.x - self.x;
    var dy = player.y - self.y;
    var distance = Math.sqrt(dx * dx + dy * dy);
    self.x += dx / distance * self.speed;
    self.y += dy / distance * self.speed;
    if (self.intersects(player)) {
      // Handle player damage
      playerHealth -= 10;
      self.destroy();
    }
  };
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Player class
var Player = Container.expand(function () {
  var self = Container.call(this);
  var playerGraphics = self.attachAsset('player', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.shootDirection = {
    x: 0,
    y: 0
  };
  self.update = function () {
    // Player shooting logic
    if (LK.ticks % 15 === 0) {
      var bullet = new Bullet(self.x, self.y, self.shootDirection);
      game.addChild(bullet);
      bullets.push(bullet);
    }
  };
});

/****
* 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 = 1366;
// Initialize bullets and enemies arrays
var bullets = [];
var enemies = [];
// Player health
var playerHealth = 100;
// Game update function
game.update = function () {
  // Update player direction based on pointer
  game.move = function (x, y, obj) {
    var dx = x - player.x;
    var dy = y - player.y;
    var distance = Math.sqrt(dx * dx + dy * dy);
    player.shootDirection = {
      x: dx / distance,
      y: dy / distance
    };
  };
  // Spawn enemies at random edges
  if (LK.ticks % 60 === 0) {
    var edge = Math.floor(Math.random() * 4);
    var startX, startY;
    if (edge === 0) {
      // Top
      startX = Math.random() * 2048;
      startY = 0;
    } else if (edge === 1) {
      // Right
      startX = 2048;
      startY = Math.random() * 2732;
    } else if (edge === 2) {
      // Bottom
      startX = Math.random() * 2048;
      startY = 2732;
    } else {
      // Left
      startX = 0;
      startY = Math.random() * 2732;
    }
    var enemy = new Enemy(startX, startY);
    game.addChild(enemy);
    enemies.push(enemy);
  }
  // Update bullets
  for (var i = bullets.length - 1; i >= 0; i--) {
    bullets[i].update();
    if (bullets[i].destroyed) {
      bullets.splice(i, 1);
    }
  }
  // Update enemies
  for (var j = enemies.length - 1; j >= 0; j--) {
    enemies[j].update();
    if (enemies[j].destroyed) {
      enemies.splice(j, 1);
    }
  }
  // Check for game over
  if (playerHealth <= 0) {
    LK.showGameOver();
  }
};