libcoyotl - A Library of C++ Tools

Created by Scott Robert Ladd at Coyote Gulch Productions.


kissrng.h
1 //---------------------------------------------------------------------
2 // Algorithmic Conjurings @ http://www.coyotegulch.com
3 //
4 // kissrng.cpp (libcoyotl)
5 //
6 // The popular "Keep It Simple Stupid" psuedorandom number generator.
7 //
8 //---------------------------------------------------------------------
9 //
10 // Copyright 1990-2005 Scott Robert Ladd
11 //
12 // This program is free software; you can redistribute it and/or modify
13 // it under the terms of the GNU General Public License as published by
14 // the Free Software Foundation; either version 2 of the License, or
15 // (at your option) any later version.
16 //
17 // This program is distributed in the hope that it will be useful,
18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 // GNU General Public License for more details.
21 //
22 // You should have received a copy of the GNU General Public License
23 // along with this program; if not, write to the
24 // Free Software Foundation, Inc.
25 // 59 Temple Place - Suite 330
26 // Boston, MA 02111-1307, USA.
27 //
28 //-----------------------------------------------------------------------
29 //
30 // For more information on this software package, please visit
31 // Scott's web site, Coyote Gulch Productions, at:
32 //
33 // http://www.coyotegulch.com
34 //
35 //-----------------------------------------------------------------------
36 
37 #if !defined(LIBCOYOTL_KISSRNG_H)
38 #define LIBCOYOTL_KISSRNG_H
39 
40 #include "prng.h"
41 
42 namespace libcoyotl
43 {
45 
50  class kissrng : public prng
51  {
52  private:
53  uint32_t m_x;
54  uint32_t m_y;
55  uint32_t m_z;
56  uint32_t m_c;
57 
58  public:
60 
64  kissrng();
65 
67 
71  kissrng(uint32_t seed);
72 
74 
78  virtual void init(uint32_t seed);
79 
80  private:
82 
86  void init_helper();
87 
88  public:
90 
94  virtual uint32_t get_rand();
95  };
96 
97 } // end namespace libcoyotl
98 
99 #endif

© 1996-2005 Scott Robert Ladd. All rights reserved.
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