b5107715f1
- added `state` as a property to restore internal state of RNG; - `get_seed()` returns last seed used to initialize the state rather than the current state. Co-authored-by: MidZik <matt.idzik1@gmail.com>
52 lines
3.4 KiB
C++
52 lines
3.4 KiB
C++
/*************************************************************************/
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/* random_number_generator.cpp */
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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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#include "random_number_generator.h"
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void RandomNumberGenerator::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_seed", "seed"), &RandomNumberGenerator::set_seed);
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ClassDB::bind_method(D_METHOD("get_seed"), &RandomNumberGenerator::get_seed);
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ClassDB::bind_method(D_METHOD("set_state", "state"), &RandomNumberGenerator::set_state);
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ClassDB::bind_method(D_METHOD("get_state"), &RandomNumberGenerator::get_state);
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ClassDB::bind_method(D_METHOD("randi"), &RandomNumberGenerator::randi);
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ClassDB::bind_method(D_METHOD("randf"), &RandomNumberGenerator::randf);
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ClassDB::bind_method(D_METHOD("randfn", "mean", "deviation"), &RandomNumberGenerator::randfn, DEFVAL(0.0), DEFVAL(1.0));
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ClassDB::bind_method(D_METHOD("randf_range", "from", "to"), &RandomNumberGenerator::randf_range);
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ClassDB::bind_method(D_METHOD("randi_range", "from", "to"), &RandomNumberGenerator::randi_range);
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ClassDB::bind_method(D_METHOD("randomize"), &RandomNumberGenerator::randomize);
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ADD_PROPERTY(PropertyInfo(Variant::INT, "seed"), "set_seed", "get_seed");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "state"), "set_state", "get_state");
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// Default values are non-deterministic, override for doc generation purposes.
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ADD_PROPERTY_DEFAULT("seed", 0);
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ADD_PROPERTY_DEFAULT("state", 0);
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}
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