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Removed the sf::Randomizer class from the system module

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This commit is contained in:
Laurent Gomila 2011-05-10 08:16:22 +02:00
parent e3c8fd6586
commit a4f6e915a0
8 changed files with 5 additions and 356 deletions
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74
bindings/c/include/SFML/System/Randomizer.h
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@ -1,74 +0,0 @@
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
//
// 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 SFML_RANDOMIZER_H
#define SFML_RANDOMIZER_H
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Config.h>
////////////////////////////////////////////////////////////
/// Set the seed for the random numbers generator. Using a known seed
/// allows you to reproduce the same sequence of random numbers
///
/// \param seed : Number to use as the seed
///
////////////////////////////////////////////////////////////
CSFML_API void sfRandom_SetSeed(unsigned int seed);
////////////////////////////////////////////////////////////
/// Get the seed used to generate random numbers the generator
///
/// \return Current seed
///
////////////////////////////////////////////////////////////
CSFML_API unsigned int sfRandom_GetSeed(void);
////////////////////////////////////////////////////////////
/// Get a random float number in a given range
///
/// \return begin : Start of the range
/// \return end : End of the range
///
/// \return Random number in [begin, end]
///
////////////////////////////////////////////////////////////
CSFML_API float sfRandom_Float(float begin, float end);
////////////////////////////////////////////////////////////
/// Get a random integer number in a given range
///
/// \return begin : Start of the range
/// \return end : End of the range
///
/// \return Random number in [begin, end]
///
////////////////////////////////////////////////////////////
CSFML_API int sfRandom_Int(int begin, int end);
#endif // SFML_RANDOMIZER_H

2
bindings/c/src/SFML/System/CMakeLists.txt
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@ -10,8 +10,6 @@ set(SRC
${SRCROOT}/Mutex.cpp
${SRCROOT}/MutexStruct.h
${INCROOT}/Mutex.h
${SRCROOT}/Randomizer.cpp
${INCROOT}/Randomizer.h
${SRCROOT}/Sleep.cpp
${INCROOT}/Sleep.h
${SRCROOT}/Thread.cpp

67
bindings/c/src/SFML/System/Randomizer.cpp
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@ -1,67 +0,0 @@
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
//
// 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.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/System/Randomizer.h>
#include <SFML/System/Randomizer.hpp>
#include <SFML/Internal.h>
////////////////////////////////////////////////////////////
/// Set the seed for the random numbers generator. Using a known seed
/// allows you to reproduce the same sequence of random numbers
////////////////////////////////////////////////////////////
void sfRandom_SetSeed(unsigned int seed)
{
sf::Randomizer::SetSeed(seed);
}
////////////////////////////////////////////////////////////
/// Get the seed used to generate random numbers the generator
////////////////////////////////////////////////////////////
unsigned int sfRandom_GetSeed(void)
{
return sf::Randomizer::GetSeed();
}
////////////////////////////////////////////////////////////
/// Get a random float number in a given range
////////////////////////////////////////////////////////////
float sfRandom_Float(float begin, float end)
{
return sf::Randomizer::Random(begin, end);
}
////////////////////////////////////////////////////////////
/// Get a random integer number in a given range
////////////////////////////////////////////////////////////
int sfRandom_Int(int begin, int end)
{
return sf::Randomizer::Random(begin, end);
}

6
examples/pong/Pong.cpp
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@ -5,6 +5,8 @@
#include <SFML/Graphics.hpp>
#include <SFML/Audio.hpp>
#include <cmath>
#include <ctime>
#include <cstdlib>
////////////////////////////////////////////////////////////
@ -15,6 +17,8 @@
////////////////////////////////////////////////////////////
int main()
{
std::srand(std::time(NULL));
// Defines PI
const float PI = 3.14159f;
@ -73,7 +77,7 @@ int main()
do
{
// Make sure the ball initial angle is not too much vertical
ballAngle = sf::Randomizer::Random(0.f, 2 * PI);
ballAngle = std::rand() * 2 * PI / RAND_MAX;
} while (std::abs(std::cos(ballAngle)) < 0.7f);
bool isPlaying = true;

1
include/SFML/System.hpp
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@ -34,7 +34,6 @@
#include <SFML/System/Err.hpp>
#include <SFML/System/Lock.hpp>
#include <SFML/System/Mutex.hpp>
#include <SFML/System/Randomizer.hpp>
#include <SFML/System/Sleep.hpp>
#include <SFML/System/String.hpp>
#include <SFML/System/Thread.hpp>

121
include/SFML/System/Randomizer.hpp
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@ -1,121 +0,0 @@
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
//
// 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 SFML_RANDOMIZER_HPP
#define SFML_RANDOMIZER_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Config.hpp>
namespace sf
{
////////////////////////////////////////////////////////////
/// \brief Utility class for generating pseudo-random numbers
///
////////////////////////////////////////////////////////////
class SFML_API Randomizer
{
public :
////////////////////////////////////////////////////////////
/// \brief Set a new seed for the generator
///
/// Using a known seed allows you to reproduce the same
/// sequence of random numbers.
///
/// \param seed Number to use as the seed
///
////////////////////////////////////////////////////////////
static void SetSeed(unsigned int seed);
////////////////////////////////////////////////////////////
/// \brief Get the current seed of the generator
///
/// \return Current seed
///
////////////////////////////////////////////////////////////
static unsigned int GetSeed();
////////////////////////////////////////////////////////////
/// \brief Get a random float number in a given range
///
/// \param begin Beginning of the range
/// \param end End of the range
///
/// \return Random number in [begin, end]
///
////////////////////////////////////////////////////////////
static float Random(float begin, float end);
////////////////////////////////////////////////////////////
/// \brief Get a random integer number in a given range
///
/// \param begin Beginning of the range
/// \param end End of the range
///
/// \return Random number in [begin, end]
///
////////////////////////////////////////////////////////////
static int Random(int begin, int end);
};
} // namespace sf
#endif // SFML_RANDOMIZER_HPP
////////////////////////////////////////////////////////////
/// \class sf::Randomizer
/// \ingroup system
///
/// sf::Randomizer generates pseudo-random numbers using the
/// standard library.
///
/// Usage example:
/// \code
/// int x1 = sf::Randomizer::Random(0, 6);
/// float x2 = sf::Randomizer::Random(0.f, 1.f);
/// \endcode
///
/// Note that, unlike the standard rand() function, you don't
/// have to initialize the seed before using this class. SFML does
/// it for you, so that you will automatically get different results
/// for every execution of the program.
///
/// The SetSeed and GetSeed functions are provided mainly for being
/// able to reproduce the same set of numbers in a recorded
/// sequence. This is useful when implementing replays, for example.
///
/// The technique used by sf::Randomizer for getting random numbers
/// is not the most accurate: some numbers may have a slightly higher
/// probability than others, under certain circumstancies.
/// This doesn't matter in 99.9% of situations, but if you really
/// need a generator which is mathematically more robust
/// you should use another library for that part (see boost.random).
///
////////////////////////////////////////////////////////////

2
src/SFML/System/CMakeLists.txt
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@ -14,8 +14,6 @@ set(SRC
${INCROOT}/Mutex.hpp
${INCROOT}/NonCopyable.hpp
${SRCROOT}/Platform.hpp
${SRCROOT}/Randomizer.cpp
${INCROOT}/Randomizer.hpp
${INCROOT}/Resource.hpp
${INCROOT}/Resource.inl
${INCROOT}/ResourcePtr.inl

88
src/SFML/System/Randomizer.cpp
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@ -1,88 +0,0 @@
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
//
// 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.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/System/Randomizer.hpp>
#include <cstdlib>
#include <ctime>
////////////////////////////////////////////////////////////
// Private data
////////////////////////////////////////////////////////////
namespace
{
// Initialize the generator's seed with the current system time
// in milliseconds, so that it is always different
unsigned int InitializeSeed()
{
unsigned int seed = static_cast<unsigned int>(std::time(NULL));
std::srand(seed);
return seed;
}
// Global variable storing the current seed
unsigned int globalSeed = InitializeSeed();
}
namespace sf
{
////////////////////////////////////////////////////////////
void Randomizer::SetSeed(unsigned int seed)
{
std::srand(seed);
globalSeed = seed;
}
////////////////////////////////////////////////////////////
unsigned int Randomizer::GetSeed()
{
return globalSeed;
}
////////////////////////////////////////////////////////////
float Randomizer::Random(float begin, float end)
{
// This is not the best algorithm, but it is fast and will be enough in most cases
return static_cast<float>(std::rand()) / RAND_MAX * (end - begin) + begin;
}
////////////////////////////////////////////////////////////
/// Get a random integer number in a given range
////////////////////////////////////////////////////////////
int Randomizer::Random(int begin, int end)
{
// This is not the best algorithm, but it is fast and will be enough in most cases
return std::rand() % (end - begin + 1) + begin;
}
} // namespace sf