TrackingState.H

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/* Copyright 2022-2026 The Regents of the University of California, through Lawrence
 *           Berkeley National Laboratory (subject to receipt of any required
 *           approvals from the U.S. Dept. of Energy). All rights reserved.
 *
 * This file is part of ImpactX.
 *
 * Authors: Axel Huebl, Chad Mitchell
 * License: BSD-3-Clause-LBNL
 */
#ifndef IMPACTX_TRACKING_STATE_H
#define IMPACTX_TRACKING_STATE_H
 
#include "elements/All.H"
#include "tracking/TrackingDirection.H"
 
#include <optional>
 
 
namespace impactx
{
    struct TrackingState
    {
        int m_step = 0;

        int m_period = 0;

        std::optional<elements::KnownElements*> m_element;

        TrackingDirection m_direction = TrackingDirection::Forward;
 
        void set_no_element () { m_element = std::nullopt; }
 
        bool forward () const { return m_direction == TrackingDirection::Forward; }
    };
 
} // namespace impactx
 
#endif // IMPACTX_TRACKING_STATE_H