1/**************************************************************************/
2/* random_number_generator.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
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19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#ifndef RANDOM_NUMBER_GENERATOR_H
32#define RANDOM_NUMBER_GENERATOR_H
33
34#include "core/math/random_pcg.h"
35#include "core/object/ref_counted.h"
36
37class RandomNumberGenerator : public RefCounted {
38 GDCLASS(RandomNumberGenerator, RefCounted);
39
40protected:
41 RandomPCG randbase;
42
43 static void _bind_methods();
44
45public:
46 _FORCE_INLINE_ void set_seed(uint64_t p_seed) { randbase.seed(p_seed); }
47 _FORCE_INLINE_ uint64_t get_seed() { return randbase.get_seed(); }
48
49 _FORCE_INLINE_ void set_state(uint64_t p_state) { randbase.set_state(p_state); }
50 _FORCE_INLINE_ uint64_t get_state() const { return randbase.get_state(); }
51
52 _FORCE_INLINE_ void randomize() { randbase.randomize(); }
53
54 _FORCE_INLINE_ uint32_t randi() { return randbase.rand(); }
55 _FORCE_INLINE_ real_t randf() { return randbase.randf(); }
56 _FORCE_INLINE_ real_t randf_range(real_t p_from, real_t p_to) { return randbase.random(p_from, p_to); }
57 _FORCE_INLINE_ real_t randfn(real_t p_mean = 0.0, real_t p_deviation = 1.0) { return randbase.randfn(p_mean, p_deviation); }
58 _FORCE_INLINE_ int randi_range(int p_from, int p_to) { return randbase.random(p_from, p_to); }
59
60 RandomNumberGenerator() { randbase.randomize(); }
61};
62
63#endif // RANDOM_NUMBER_GENERATOR_H
64