| 1 | // SuperTux |
| 2 | // Copyright (C) 2018 Ingo Ruhnke <grumbel@gmail.com> |
| 3 | // |
| 4 | // This program is free software: you can redistribute it and/or modify |
| 5 | // it under the terms of the GNU General Public License as published by |
| 6 | // the Free Software Foundation, either version 3 of the License, or |
| 7 | // (at your option) any later version. |
| 8 | // |
| 9 | // This program is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | |
| 17 | #ifndef HEADER_SUPERTUX_MATH_RANDOM_HPP |
| 18 | #define HEADER_SUPERTUX_MATH_RANDOM_HPP |
| 19 | |
| 20 | #include <random> |
| 21 | |
| 22 | class Random |
| 23 | { |
| 24 | public: |
| 25 | Random(); |
| 26 | |
| 27 | /** Seed the generator */ |
| 28 | void seed(int v); |
| 29 | |
| 30 | /** Generate random integers between [0, INT_MAX) */ |
| 31 | int rand(); |
| 32 | |
| 33 | /** Generate random integers between [0, v) */ |
| 34 | int rand(int v); |
| 35 | |
| 36 | /** Generate random integers between [u, v) */ |
| 37 | int rand(int u, int v); |
| 38 | |
| 39 | /** Generate random floats between [0, v) */ |
| 40 | float randf(float v); |
| 41 | |
| 42 | /** Generate random floats between [u, v) */ |
| 43 | float randf(float u, float v); |
| 44 | |
| 45 | private: |
| 46 | std::mt19937 m_generator; |
| 47 | |
| 48 | private: |
| 49 | Random(const Random&) = delete; |
| 50 | Random& operator=(const Random&) = delete; |
| 51 | }; |
| 52 | |
| 53 | /** Use for random particle fx or whatever */ |
| 54 | extern Random graphicsRandom; |
| 55 | |
| 56 | /** Use for game-changing random numbers */ |
| 57 | extern Random gameRandom; |
| 58 | |
| 59 | #endif |
| 60 | |
| 61 | /* EOF */ |
| 62 | |