CrystalSpace

Public API Reference

csutil/randomgen.h

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00001 /*
00002     Copyright (C) 1998-2005 by Jorrit Tyberghein
00003   
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008   
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013   
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_RNG_H__
00020 #define __CS_RNG_H__
00021 
00045 #include "csextern.h"
00046 #include "cstypes.h"
00047 
00058 class CS_CRYSTALSPACE_EXPORT csRandomGen
00059 {
00060   int i97, j97;
00061   float u [98];
00062   float c, cd, cm;
00063 
00064 public:
00066   csRandomGen ()
00067   { Initialize (); }
00069   csRandomGen (uint32 iSeed)
00070   { Initialize (iSeed); }
00071 
00073   void Initialize ();
00075   void Initialize (uint32 iSeed);
00076 
00078   float Get ()
00079   { return RANMAR (); }
00081   uint32 Get (uint32 iLimit);
00082 
00084   bool SelfTest ();
00085 
00086 private:
00088   void InitRANMAR (uint32 ij, uint32 kl);
00090   float RANMAR ();
00091 };
00092 
00093 #endif // __CS_RNG_H__

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