/*
 * 
 *                This source code is part of
 * 
 *                 G   R   O   M   A   C   S
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 *          GROningen MAchine for Chemical Simulations
 * 
 *                        VERSION 3.2.0
 * Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
 * Copyright (c) 1991-2000, University of Groningen, The Netherlands.
 * Copyright (c) 2001-2004, The GROMACS development team,
 * check out http://www.gromacs.org for more information.

 * This program is free software; you can redistribute it and/or
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 * as published by the Free Software Foundation; either version 2
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#include "idef.h"

#ifdef __cplusplus
extern "C" {
#endif


typedef enum { egcolWhite, egcolGrey, egcolBlack, egcolNR } egCol;

typedef struct {
  int      nnodes;	/* The number of nodes				*/
  int      nbound;	/* The number of nodes with edges		*/
  int      start;	/* The first atom in this graph			*/
  int      end;		/* The last atom in this graph			*/
  int      *nedge;	/* For each node the number of edges		*/
  atom_id  **edge;	/* For each node, the actual edges (bidirect.)	*/
  gmx_bool     bScrewPBC;   /* Screw boundary conditions                    */
  ivec     *ishift;	/* Shift for each particle              	*/
  int      negc;         
  egCol   *egc;         /* color of each node */
} t_graph;


#define SHIFT_IVEC(g,i) ((g)->ishift[(i)-(g)->start])

#ifdef __cplusplus
}
#endif

