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#ifndef _types_graph_h
#define _types_graph_h

#include "idef.h"

#ifdef __cplusplus
extern "C" {
#endif


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

typedef struct {
    int          at0;       /* The first atom the graph was constructed for */
    int          at1;       /* The last atom the graph was constructed for */
    int          nnodes;    /* The number of nodes, nnodes=at_end-at_start	*/
    int          nbound;    /* The number of nodes with edges		*/
    int          at_start;  /* The first connected atom in this graph	*/
    int          at_end;    /* The last+1 connected 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])

#ifdef __cplusplus
}
#endif

#endif /* _types_graph_h */
