/* -*- c++ -*- ----------------------------------------------------------
 *
 *                    *** Smooth Mach Dynamics ***
 *
 * This file is part of the USER-SMD package for LAMMPS.
 * Copyright (2014) Georg C. Ganzenmueller, georg.ganzenmueller@emi.fhg.de
 * Fraunhofer Ernst-Mach Institute for High-Speed Dynamics, EMI,
 * Eckerstrasse 4, D-79104 Freiburg i.Br, Germany.
 *
 * This file is based on the FixShearHistory class.
 *
 * ----------------------------------------------------------------------- */

/* ----------------------------------------------------------------------
 LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
 http://lammps.sandia.gov, Sandia National Laboratories
 Steve Plimpton, sjplimp@sandia.gov

 Copyright (2003) Sandia Corporation.  Under the terms of Contract
 DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
 certain rights in this software.  This software is distributed under
 the GNU General Public License.

 See the README file in the top-level LAMMPS directory.
 ------------------------------------------------------------------------- */


#ifdef FIX_CLASS

FixStyle(SMD_TLSPH_NEIGHBORS,FixSMD_TLSPH_ReferenceConfiguration)

#else

#ifndef LMP_FIX_SMD_TLSPH_REFERENCE_H
#define LMP_FIX_SMD_TLSPH_REFERENCE_H

#include "fix.h"
#include "my_page.h"

namespace LAMMPS_NS {

class FixSMD_TLSPH_ReferenceConfiguration: public Fix {
        friend class Neighbor;
        friend class PairTlsph;

public:
        FixSMD_TLSPH_ReferenceConfiguration(class LAMMPS *, int, char **);
        ~FixSMD_TLSPH_ReferenceConfiguration();
        int setmask();
        void init();
        void setup(int);
        void pre_exchange();
        int pack_forward_comm(int, int *, double *, int, int *);
        void unpack_forward_comm(int, int, double *);

        double memory_usage();
        void grow_arrays(int);
        void copy_arrays(int, int, int);
        int pack_exchange(int, double *);
        int unpack_exchange(int, double *);
        int pack_restart(int, double *);
        void unpack_restart(int, int);
        int size_restart(int);
        int maxsize_restart();

        bool crack_exclude(int i, int j);
        bool get_line_intersection(int i, int j);

protected:
        int updateFlag; // flag to update reference configuration
        int nmax;
        int maxpartner;
        int *npartner;                // # of touching partners of each atom
        tagint **partner;             // global atom IDs for the partners
        float **wfd_list, **wf_list, **energy_per_bond;
        float **degradation_ij; // per-pair interaction degradation status

        class Pair *pair;

};

}

#endif
#endif