Method tick

src/indicators.hpp:2692–2707

  }

  void tick() {
    {
      std::lock_guard<std::mutex> lock{mutex_};
      if (get_value<details::ProgressBarOption::completed>())
        return;

      progress_ += (direction_ == Direction::forward) ? 1 : -1;
      if (direction_ == Direction::forward && progress_ == max_progress_) {
        // time to go back
        direction_ = Direction::backward;
      } else if (direction_ == Direction::backward && progress_ == 0) {
        direction_ = Direction::forward;
      }
    }
    print_progress();
  }

  bool is_completed() { return get_value<details::ProgressBarOption::completed>(); }