/****
* 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 = 10;
  self.update = function () {
    self.y -= self.speed;
    if (self.y < 0) {
      self.destroy();
    }
  };
});
// Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemy', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.health = 50;
  self.attackPower = 5;
  self.update = function () {
    // Enemy update logic
  };
  self.attack = function (target) {
    target.takeDamage(self.attackPower);
  };
  self.takeDamage = function (damage) {
    self.health -= damage;
    if (self.health <= 0) {
      self.destroy();
    }
  };
});
//<Assets used in the game will automatically appear 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.health = 100;
  self.attackPower = 10;
  self.update = function () {
    // Hero update logic
  };
  self.attack = function (target) {
    target.takeDamage(self.attackPower);
  };
  self.takeDamage = function (damage) {
    self.health -= damage;
    if (self.health <= 0) {
      self.destroy();
    }
  };
});

/****
* 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 = 2048 / 2;
hero.y = 2732 - 200;
// Initialize enemies
var enemies = [];
for (var i = 0; i < 5; i++) {
  var enemy = game.addChild(new Enemy());
  enemy.x = 2048 / 2 + (i - 2) * 150;
  enemy.y = 200;
  enemies.push(enemy);
}
// Initialize bullets
var bullets = [];
// Handle touch events for hero movement
game.down = function (x, y, obj) {
  hero.x = x;
  hero.y = y;
};
// Handle game update
game.update = function () {
  // Update hero
  hero.update();
  // Update enemies
  for (var i = 0; i < enemies.length; i++) {
    enemies[i].update();
    if (enemies[i].intersects(hero)) {
      enemies[i].attack(hero);
    }
  }
  // Update bullets
  for (var i = bullets.length - 1; i >= 0; i--) {
    bullets[i].update();
    for (var j = 0; j < enemies.length; j++) {
      if (bullets[i].intersects(enemies[j])) {
        bullets[i].destroy();
        bullets.splice(i, 1);
        enemies[j].takeDamage(hero.attackPower);
        break;
      }
    }
  }
  // Fire bullet
  if (LK.ticks % 30 == 0) {
    var bullet = new Bullet();
    bullet.x = hero.x;
    bullet.y = hero.y - 50;
    bullets.push(bullet);
    game.addChild(bullet);
  }
};