const Nav = lib.Nav;

const distance = (a, b) => {
  let dx = (a.x - b.x);
  let dy = (a.y - b.y);

  return Math.sqrt((dx ** 2) + (dy ** 2));
};

class MyBot extends Bot {
  create() {
    this.nav = new Nav(this);
    this.drive(1);
    this.shoot();
    this.rotateTurret(1);
  }

  update() {
    if (!this.target || this.at(this.target.position)) {
      this.target = this.randomWaypoint();
    }

    this.nav.turnTo(this.target.position);
  }

  randomWaypoint() {
    let x = Math.random() * this.world.width;
    let y = Math.random() * this.world.height;

    let waypoint = { position: {x, y}};
    this.setMarker(waypoint.position);
    return waypoint;
  }

  at(position) {
    return distance(this.position, position) < 10;
  }
}

module.exports = MyBot;