68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
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/*
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* Copyright (c) 2014, Oculus VR, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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/// \file
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/// \brief \b [Internal] Random number generator
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///
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#ifndef __RAND_H
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#define __RAND_H
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#include "Export.hpp"
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/// Initialise seed for Random Generator
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/// \note not threadSafe, use an instance of RakNetRandom if necessary per thread
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/// \param[in] seed The seed value for the random number generator.
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extern void RAK_DLL_EXPORT seedMT( unsigned int seed );
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/// \internal
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/// \note not threadSafe, use an instance of RakNetRandom if necessary per thread
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extern unsigned int RAK_DLL_EXPORT reloadMT( void );
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/// Gets a random unsigned int
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/// \note not threadSafe, use an instance of RakNetRandom if necessary per thread
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/// \return an integer random value.
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extern unsigned int RAK_DLL_EXPORT randomMT( void );
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/// Gets a random float
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/// \note not threadSafe, use an instance of RakNetRandom if necessary per thread
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/// \return 0 to 1.0f, inclusive
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extern float RAK_DLL_EXPORT frandomMT( void );
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/// Randomizes a buffer
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/// \note not threadSafe, use an instance of RakNetRandom if necessary per thread
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extern void RAK_DLL_EXPORT fillBufferMT( void *buffer, unsigned int bytes );
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namespace RakNet {
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// Same thing as above functions, but not global
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class RAK_DLL_EXPORT RakNetRandom
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{
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public:
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RakNetRandom();
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~RakNetRandom();
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void SeedMT( unsigned int seed );
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unsigned int ReloadMT( void );
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unsigned int RandomMT( void );
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float FrandomMT( void );
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void FillBufferMT( void *buffer, unsigned int bytes );
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protected:
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unsigned int state[ 624 + 1 ];
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unsigned int *next;
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int left;
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};
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} // namespace RakNet
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#endif
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