Standard Portable Library: spl/math/Random.h Source File

00001 /*
00002  *   This file is part of the Standard Portable Library (SPL).
00003  *
00004  *   SPL is free software: you can redistribute it and/or modify
00005  *   it under the terms of the GNU General Public License as published by
00006  *   the Free Software Foundation, either version 3 of the License, or
00007  *   (at your option) any later version.
00008  *
00009  *   SPL 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
00012  *   GNU General Public License for more details.
00013  *
00014  *   You should have received a copy of the GNU General Public License
00015  *   along with SPL.  If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 #ifndef _Random_h
00018 #define _Random_h
00019 
00020 #include <spl/Debug.h>
00021 #include <spl/types.h>
00022 
00032 class Random
00033 {
00034 protected:
00035         uint32 combo_x;
00036         uint32 combo_y;
00037         uint32 combo_z;
00038         uint32 combo_v;
00039 
00040 public:
00041         Random();
00042         Random(int seed);
00043                 
00044         inline Random(const Random& rnd) 
00045         :       combo_x(rnd.combo_x), 
00046                 combo_y(rnd.combo_y), 
00047                 combo_z(rnd.combo_v), 
00048                 combo_v(rnd.combo_v)
00049         {
00050         }
00051 
00052         inline Random& operator =(const Random& rnd)
00053         {
00054                 combo_x = rnd.combo_x;
00055                 combo_y = rnd.combo_y;
00056                 combo_z = rnd.combo_z;
00057                 combo_v = rnd.combo_v;
00058 
00059                 return *this;
00060         }
00061         
00062         int Next();
00063         int Next(int max);
00064         int Next(int min, int max);
00065         void NextBytes(byte *data, int len);
00066         int NextInt();
00067         
00068         double NextDouble();
00069 };
00070 
00073 #endif