Empty.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: Chad Mitchell, Axel Huebl
 * License: BSD-3-Clause-LBNL
 */
#ifndef IMPACTX_DISTRIBUTION_EMPTY_H
#define IMPACTX_DISTRIBUTION_EMPTY_H
 
#include "particles/ReferenceParticle.H"
 
#include <AMReX_Random.H>
#include <AMReX_REAL.H>
 
 
namespace impactx::distribution
{
    struct Empty
    {
        Empty()
        {
        }

        void initialize ([[maybe_unused]] amrex::ParticleReal bunch_charge, [[maybe_unused]] RefPart const & ref)
        {
        }

        void
        finalize ()
        {
        }

        AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
        void operator() (
                amrex::ParticleReal & x,
                amrex::ParticleReal & y,
                amrex::ParticleReal & t,
                amrex::ParticleReal & px,
                amrex::ParticleReal & py,
                amrex::ParticleReal & pt,
                [[maybe_unused]] amrex::RandomEngine const& engine) const
        {
            using namespace amrex::literals;
 
            x = 0_prt;
            y = 0_prt;
            t = 0_prt;
            px = 0_prt;
            py = 0_prt;
            pt = 0_prt;
        }
    };
 
} // namespace impactx::distribution
 
#endif // IMPACTX_DISTRIBUTION_EMPTY_H