/****
* Classes
****/
// Hero class
var Hero = Container.expand(function () {
  var self = Container.call(this);
  var heroGraphics = self.createAsset('hero', 'Hero character', 0.5, 0.5);
  self.x = 2048 / 2;
  self.y = 2732 / 2;
});
// Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.createAsset('enemy', 'Enemy character', 0.5, 0.5);
  self.speed = 2;
  self.move = function () {
    // Simple movement towards the center of the screen
    var dx = 1024 - self.x;
    var dy = 1366 - self.y;
    var angle = Math.atan2(dy, dx);
    self.x += Math.cos(angle) * self.speed;
    self.y += Math.sin(angle) * self.speed;
  };
});
// Bullet class
var Bullet = Container.expand(function () {
  var self = Container.call(this);
  var bulletGraphics = self.createAsset('bullet', 'Bullet Graphics', 0.5, 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
var hero = game.addChild(new Hero());

// Initialize enemies and bullets arrays
var enemies = [];
var bullets = [];

// Function to spawn enemies
function spawnEnemy() {
  var angle = Math.random() * Math.PI * 2; // Random angle
  var radius = 1200; // Spawn circle radius
  var enemy = new Enemy();
  enemy.x = 1024 + radius * Math.cos(angle);
  enemy.y = 1366 + radius * Math.sin(angle);
  enemies.push(enemy);
  game.addChild(enemy);
}

// Function to fire a bullet
function fireBullet() {
  var bullet = new Bullet();
  bullet.x = hero.x;
  bullet.y = hero.y;
  bullets.push(bullet);
  game.addChild(bullet);
}

// Game tick event
LK.on('tick', function () {
  // Move bullets
  for (var i = bullets.length - 1; i >= 0; i--) {
    bullets[i].move();
    if (bullets[i].y < 0) {
      bullets[i].destroy();
      bullets.splice(i, 1);
    }
  }

  // Move enemies
  for (var j = enemies.length - 1; j >= 0; j--) {
    enemies[j].move();
    if (enemies[j].intersects(hero)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
      return;
    }
  }

  // Spawn enemies
  if (LK.ticks % 120 === 0) {
    spawnEnemy();
  }

  // Fire bullets
  if (LK.ticks % 30 === 0) {
    fireBullet();
  }
});

// Touch event to fire bullets
game.on('down', function (obj) {
  fireBullet();
});