faithtools/faith/randomsequence.h

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/* This file is part of the KDE libraries
   Copyright (c) 1999 Sean Harmer <sh@astro.keele.ac.uk>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/
#ifndef KDE__RANDOMSEQUENCE_H
#define KDE__RANDOMSEQUENCE_H

#include <faith/tools.h>
namespace Faith
{

class FAITH_TOOLS_EXPORT RandomSequence
{
public:
  RandomSequence( long lngSeed = 0 );

  virtual ~RandomSequence();

  RandomSequence(const RandomSequence &a);

  RandomSequence &operator=(const RandomSequence &a);

  void setSeed( long lngSeed = 1 );

  double getDouble();

  unsigned long getLong(unsigned long max);

  bool getBool();

#if 0

  void randomize(QGList *list);
#endif

  void modulate(int i);

  static int random();

private:
  void draw(); // Generate the random number
  long m_lngSeed1;
  long m_lngSeed2;
  long m_lngShufflePos;

  static const int m_nShuffleTableSize;
  long *m_ShuffleArray;

  struct Private;
  Private *d;
};

}

#endif

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