mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-27 22:27:15 +01:00
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/*
|
|
Copyright (c) 2003-2013 Gino van den Bergen / Erwin Coumans http://bulletphysics.org
|
|
|
|
This software is provided 'as-is', without any express or implied warranty.
|
|
In no event will the authors be held liable for any damages arising from the use of this software.
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it freely,
|
|
subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
#ifndef B3_GEN_RANDOM_H
|
|
#define B3_GEN_RANDOM_H
|
|
|
|
#include "b3Scalar.h"
|
|
|
|
#ifdef MT19937
|
|
|
|
#include <limits.h>
|
|
#include <mt19937.h>
|
|
|
|
#define B3_RAND_MAX UINT_MAX
|
|
|
|
B3_FORCE_INLINE void b3Srand(unsigned int seed) { init_genrand(seed); }
|
|
B3_FORCE_INLINE unsigned int b3rand() { return genrand_int32(); }
|
|
|
|
#else
|
|
|
|
#include <stdlib.h>
|
|
|
|
#define B3_RAND_MAX RAND_MAX
|
|
|
|
B3_FORCE_INLINE void b3Srand(unsigned int seed) { srand(seed); }
|
|
B3_FORCE_INLINE unsigned int b3rand() { return rand(); }
|
|
|
|
#endif
|
|
|
|
inline b3Scalar b3RandRange(b3Scalar minRange, b3Scalar maxRange)
|
|
{
|
|
return (b3rand() / (b3Scalar(B3_RAND_MAX) + b3Scalar(1.0))) * (maxRange - minRange) + minRange;
|
|
}
|
|
|
|
#endif //B3_GEN_RANDOM_H
|