943db2ca34
Allows to extend `RandomNumberGenerator` via C++ modules.
(cherry picked from commit 1923f0d302)
71 lines
3.2 KiB
C++
71 lines
3.2 KiB
C++
/*************************************************************************/
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/* random_number_generator.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef RANDOM_NUMBER_GENERATOR_H
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#define RANDOM_NUMBER_GENERATOR_H
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#include "core/math/random_pcg.h"
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#include "core/reference.h"
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class RandomNumberGenerator : public Reference {
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GDCLASS(RandomNumberGenerator, Reference);
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protected:
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RandomPCG randbase;
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static void _bind_methods();
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public:
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_FORCE_INLINE_ void set_seed(uint64_t seed) { randbase.seed(seed); }
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_FORCE_INLINE_ uint64_t get_seed() { return randbase.get_seed(); }
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_FORCE_INLINE_ void randomize() { randbase.randomize(); }
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_FORCE_INLINE_ uint32_t randi() { return randbase.rand(); }
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_FORCE_INLINE_ real_t randf() { return randbase.randf(); }
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_FORCE_INLINE_ real_t randf_range(real_t from, real_t to) { return randbase.random(from, to); }
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_FORCE_INLINE_ real_t randfn(real_t mean = 0.0, real_t deviation = 1.0) { return randbase.randfn(mean, deviation); }
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_FORCE_INLINE_ int randi_range(int from, int to) {
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unsigned int ret = randbase.rand();
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if (to < from)
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return ret % (from - to + 1) + to;
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else
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return ret % (to - from + 1) + from;
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}
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RandomNumberGenerator();
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};
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#endif // RANDOM_NUMBER_GENERATOR_H
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