1 ////////////////////////////////////////////////////////////
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3 // SFML - Simple and Fast Multimedia Library
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4 // Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
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6 // This software is provided 'as-is', without any express or implied warranty.
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7 // In no event will the authors be held liable for any damages arising from the use of this software.
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9 // Permission is granted to anyone to use this software for any purpose,
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10 // including commercial applications, and to alter it and redistribute it freely,
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11 // subject to the following restrictions:
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13 // 1. The origin of this software must not be misrepresented;
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14 // you must not claim that you wrote the original software.
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15 // If you use this software in a product, an acknowledgment
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16 // in the product documentation would be appreciated but is not required.
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18 // 2. Altered source versions must be plainly marked as such,
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19 // and must not be misrepresented as being the original software.
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21 // 3. This notice may not be removed or altered from any source distribution.
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23 ////////////////////////////////////////////////////////////
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25 #ifndef SFML_RANDOMIZER_HPP
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26 #define SFML_RANDOMIZER_HPP
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28 ////////////////////////////////////////////////////////////
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30 ////////////////////////////////////////////////////////////
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31 #include <SFML/Config.hpp>
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36 ////////////////////////////////////////////////////////////
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37 /// Randomizer is an utility class for generating pseudo-random
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39 ////////////////////////////////////////////////////////////
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40 class SFML_API Randomizer
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44 ////////////////////////////////////////////////////////////
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45 /// Set the seed for the generator. Using a known seed
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46 /// allows you to reproduce the same sequence of random number
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48 /// \param Seed : Number to use as the seed
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50 ////////////////////////////////////////////////////////////
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51 static void SetSeed(unsigned int Seed);
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53 ////////////////////////////////////////////////////////////
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54 /// Get the seed used to generate random numbers the generator.
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56 /// \return Current seed
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58 ////////////////////////////////////////////////////////////
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59 static unsigned int GetSeed();
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61 ////////////////////////////////////////////////////////////
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62 /// Get a random float number in a given range
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64 /// \return Start : Start of the range
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65 /// \return End : End of the range
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67 /// \return Random number in [Begin, End]
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69 ////////////////////////////////////////////////////////////
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70 static float Random(float Begin, float End);
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72 ////////////////////////////////////////////////////////////
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73 /// Get a random integer number in a given range
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75 /// \return Start : Start of the range
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76 /// \return End : End of the range
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78 /// \return Random number in [Begin, End]
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80 ////////////////////////////////////////////////////////////
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81 static int Random(int Begin, int End);
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85 ////////////////////////////////////////////////////////////
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86 // Static member variables
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87 ////////////////////////////////////////////////////////////
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88 static unsigned int ourSeed;
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94 #endif // SFML_RANDOMIZER_HPP
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