/****
* 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;
  };
});
// Enemy class
var Enemy = Container.expand(function () {
  var self = Container.call(this);
  var enemyGraphics = self.attachAsset('enemy', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.update = function () {
    // Enemy update logic
  };
});
//<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.update = function () {
    // Hero update logic
  };
});

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

/****
* Game Code
****/
// Initialize variables
var hero;
var enemies = [];
var bullets = [];
var score = 0;
var scoreTxt;
var dragNode = null;
// Initialize game elements
function initGame() {
  // Create hero
  hero = new Hero();
  hero.x = 2048 / 2;
  hero.y = 2732 - 200;
  game.addChild(hero);
  // Create score text
  scoreTxt = new Text2('0', {
    size: 150,
    fill: "#ffffff"
  });
  scoreTxt.anchor.set(0.5, 0);
  LK.gui.top.addChild(scoreTxt);
  // Create 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);
  }
}
// Handle game updates
game.update = function () {
  // Update hero
  hero.update();
  // Update enemies
  for (var i = 0; i < enemies.length; i++) {
    enemies[i].update();
    if (hero.intersects(enemies[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
  }
  // Update bullets
  for (var j = bullets.length - 1; j >= 0; j--) {
    bullets[j].update();
    if (bullets[j].y < -50) {
      bullets[j].destroy();
      bullets.splice(j, 1);
    }
    for (var k = enemies.length - 1; k >= 0; k--) {
      if (bullets[j] && bullets[j].intersects(enemies[k])) {
        score++;
        scoreTxt.setText(score);
        bullets[j].destroy();
        bullets.splice(j, 1);
        enemies[k].destroy();
        enemies.splice(k, 1);
        break;
      }
    }
  }
  // Fire bullet
  if (LK.ticks % 30 == 0) {
    var newBullet = new Bullet();
    newBullet.x = hero.x;
    newBullet.y = hero.y;
    bullets.push(newBullet);
    game.addChild(newBullet);
  }
};
// Handle touch/mouse down
game.down = function (x, y, obj) {
  dragNode = hero;
  handleMove(x, y, obj);
};
// Handle touch/mouse up
game.up = function (x, y, obj) {
  dragNode = null;
};
// Handle touch/mouse move
game.move = function (x, y, obj) {
  if (dragNode) {
    dragNode.x = x;
    dragNode.y = y;
  }
};
// Initialize game
initGame();