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random.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifndef COMMON_RANDOM_H
00024 #define COMMON_RANDOM_H
00025 
00026 #include "common/scummsys.h"
00027 
00028 namespace Common {
00029 
00030 class String;
00031 
00036 class RandomSource {
00037 private:
00038     uint32 _randSeed;
00039 
00040 public:
00047     RandomSource(const String &name);
00048 
00049     void setSeed(uint32 seed);
00050 
00051     uint32 getSeed() const {
00052         return _randSeed;
00053     }
00054 
00060     uint getRandomNumber(uint max);
00061 
00067     uint getRandomBit();
00068 
00075     uint getRandomNumberRng(uint min, uint max);
00076 };
00077 
00078 } // End of namespace Common
00079 
00080 #endif


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