libsidplayfp  1.8.3
sidrandom.h
1 /*
2  * This file is part of libsidplayfp, a SID player engine.
3  *
4  * Copyright 2012-2013 Leandro Nini <drfiemost@users.sourceforge.net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef SIDRANDOM_H
22 #define SIDRANDOM_H
23 
27 class sidrandom
28 {
29 private:
30  unsigned int m_seed;
31 
32 public:
38  sidrandom(unsigned int seed) :
39  m_seed(seed * 1103515245 + 12345) {}
40 
44  unsigned int next()
45  {
46  m_seed = m_seed * 13 + 1;
47  return m_seed;
48  }
49 };
50 
51 #endif
Definition: sidrandom.h:27
unsigned int next()
Definition: sidrandom.h:44
sidrandom(unsigned int seed)
Definition: sidrandom.h:38