dice.h

/*
 * dice.h
 *
 * by Gary Wong, 1999
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 3 or later of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * $Id: dice.h,v 1.30 2011/12/06 23:16:47 plm Exp $
 */

#ifndef _DICE_H_
#define _DICE_H_

#include <stdio.h>

typedef enum _rng {
    RNG_ANSI, RNG_BBS, RNG_BSD, RNG_ISAAC, RNG_MD5, RNG_MERSENNE, 
    RNG_MANUAL, RNG_RANDOM_DOT_ORG, RNG_FILE,
    NUM_RNGS
} rng;

typedef struct _rngcontext rngcontext;

extern const char *aszRNG[ NUM_RNGS ];
extern const char *aszRNGTip[ NUM_RNGS ];
extern char szDiceFilename[];
extern rng rngCurrent;
extern rngcontext *rngctxCurrent;

rngcontext *CopyRNGContext(rngcontext *rngctx);

extern void free_rngctx(rngcontext * rngctx);
extern void *InitRNG( unsigned long *pnSeed, int *pfInitFrom, const int fSet, const rng rngx );
extern void CloseRNG( const rng rngx, rngcontext *rngctx );
extern void DestroyRNG( const rng rngx, rngcontext **rngctx );
extern void PrintRNGSeed( const rng rngx, rngcontext *rngctx );
extern void PrintRNGCounter( const rng rngx, rngcontext *rngctx );
extern void InitRNGSeed( unsigned int n, const rng rngx, rngcontext *rngctx );
extern int RNGSystemSeed( const rng rngx, void *p, unsigned long *pnSeed );

extern int RollDice( unsigned int anDice[ 2 ], rng *prngx, rngcontext *rngctx );

#if HAVE_LIBGMP
extern int InitRNGSeedLong( char *sz, rng rng, rngcontext *rngctx );
extern int InitRNGBBSModulus( const char *sz, rngcontext *rngctx );
extern int InitRNGBBSFactors( char *sz0, char *sz1, rngcontext *rngctx );
#endif

extern FILE *OpenDiceFile( rngcontext *rngctx, const char *sz );

extern void
CloseDiceFile( rngcontext *rngctx );

extern char *
GetDiceFileName( rngcontext *rngctx );

#endif