2014-03-15 16:59:03 +00:00
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// SONIC ROBO BLAST 2
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//-----------------------------------------------------------------------------
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// Copyright (C) 1993-1996 by id Software, Inc.
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// Copyright (C) 1998-2000 by DooM Legacy Team.
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// Copyright (C) 2012-2014 by Matthew "Inuyasha" Walsh.
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// Copyright (C) 1999-2014 by Sonic Team Junior.
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//
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// This program is free software distributed under the
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// terms of the GNU General Public License, version 2.
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// See the 'LICENSE' file for more details.
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//-----------------------------------------------------------------------------
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/// \file m_random.h
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/// \brief LCG PRNG originally created for XMOD
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#ifndef __M_RANDOM__
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#define __M_RANDOM__
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#include "doomtype.h"
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#include "m_fixed.h"
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2014-03-17 12:13:16 +00:00
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//#define DEBUGRANDOM
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2014-03-15 16:59:03 +00:00
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// M_Random functions pull random numbers of various types that aren't network synced.
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// P_Random functions pulls random bytes from a LCG PRNG that is network synced.
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// RNG functions
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UINT8 M_Random(void);
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INT32 M_SignedRandom(void);
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INT32 M_RandomKey(INT32 a);
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INT32 M_RandomRange(INT32 a, INT32 b);
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// PRNG functions
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#ifdef DEBUGRANDOM
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#define P_Random() P_RandomD(__FILE__, __LINE__)
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#define P_SignedRandom() P_SignedRandomD(__FILE__, __LINE__)
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#define P_RandomKey(c) P_RandomKeyD(__FILE__, __LINE__, c)
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#define P_RandomRange(c, d) P_RandomRangeD(__FILE__, __LINE__, c, d)
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UINT8 P_RandomD(const char *rfile, INT32 rline);
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INT32 P_SignedRandomD(const char *rfile, INT32 rline);
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INT32 P_RandomKeyD(const char *rfile, INT32 rline, INT32 a);
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INT32 P_RandomRangeD(const char *rfile, INT32 rline, INT32 a, INT32 b);
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#else
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UINT8 P_Random(void);
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INT32 P_SignedRandom(void);
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INT32 P_RandomKey(INT32 a);
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INT32 P_RandomRange(INT32 a, INT32 b);
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#endif
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UINT8 P_RandomPeek(void);
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// Working with the seed for PRNG
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2014-03-17 12:13:16 +00:00
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#ifdef DEBUGRANDOM
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#define P_GetRandSeed() P_GetRandSeedD(__FILE__, __LINE__)
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#define P_GetInitSeed() P_GetInitSeedD(__FILE__, __LINE__)
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#define P_SetRandSeed(s) P_SetRandSeedD(__FILE__, __LINE__, s)
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UINT32 P_GetRandSeedD(const char *rfile, INT32 rline);
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UINT32 P_GetInitSeedD(const char *rfile, INT32 rline);
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void P_SetRandSeedD(const char *rfile, INT32 rline, UINT32 seed);
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#else
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2014-03-15 16:59:03 +00:00
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UINT32 P_GetRandSeed(void);
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UINT32 P_GetInitSeed(void);
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void P_SetRandSeed(UINT32 seed);
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2014-03-17 12:13:16 +00:00
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#endif
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2014-03-15 16:59:03 +00:00
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UINT32 M_RandomizedSeed(void);
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#endif
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