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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef QDENGINE_QDCORE_QD_RND_H
#define QDENGINE_QDCORE_QD_RND_H
#include "qdengine/qdengine.h"
namespace QDEngine {
/// Возвращает случайное значение в интервале [0, m-1].
inline uint32 qd_rnd(uint32 m) {
if (!m)
return 0;
return g_engine->getRandomNumber(m - 1);
}
/// Возвращает случайное значение в интервале [-x, x].
inline float qd_frnd(float x) {
return (float)(qd_rnd(0x7fff) * 2 - 0x7fff) * x / (float)0x7fff;
}
/// Возвращает случайное значение в интервале [0, x].
inline float qd_fabs_rnd(float x) {
return (float)qd_rnd(0x7fff) * x / (float)0x7fff;
}
inline void qd_rnd_init(int seed = 83) {
g_engine->setSeed(seed);
}
} // namespace QDEngine
#endif // QDENGINE_QDCORE_QD_RND_H
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