Resampling.H

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/* Copyright 2019-2020 Neil Zaim
 *
 * This file is part of WarpX.
 *
 * License: BSD-3-Clause-LBNL
 */
#ifndef WARPX_RESAMPLING_H_
#define WARPX_RESAMPLING_H_
 
#include "ResamplingTrigger.H"
 
#include "Particles/WarpXParticleContainer_fwd.H"
 
#include <AMReX_REAL.H>
#include <AMReX_Geometry.H>
 
#include <memory>
#include <string>

struct ResamplingAlgorithm
{
    virtual void operator() (
        const amrex::Geometry& /*geom_lev*/, WarpXParIter& /*pti*/,
        int /*lev*/, WarpXParticleContainer* /*pc*/) const = 0;

    virtual ~ResamplingAlgorithm () =  default;

    ResamplingAlgorithm () = default;
 
 
    ResamplingAlgorithm ( ResamplingAlgorithm const &)             = default;
    ResamplingAlgorithm& operator= ( ResamplingAlgorithm const & ) = default;
    ResamplingAlgorithm ( ResamplingAlgorithm&& )                  = default;
    ResamplingAlgorithm& operator= ( ResamplingAlgorithm&& )       = default;
};

class Resampling
{
public:

    Resampling () = default;

    explicit Resampling (const std::string& species_name);

    bool triggered (int timestep, amrex::Real global_numparts) const;

    void operator() (
        const amrex::Geometry& geom_lev, WarpXParIter& pti,
        int lev, WarpXParticleContainer* pc) const;
 
private:
    ResamplingTrigger m_resampling_trigger;
    std::unique_ptr<ResamplingAlgorithm> m_resampling_algorithm;
};
 
#endif //WARPX_RESAMPLING_H_