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528a76486c
GDScript has the following built-in trigonometry functions: - `sin()` - `cos()` - `tan()` - `asin()` - `acos()` - `atan()` - `atan()` - `sinh()` - `cosh()` - `tanh()` However, it lacks the hyperbolic arc (also known as inverse hyperbolic) functions: - `asinh()` - `acosh()` - `atanh()` Implement them by just exposing the C++ Math library, but clamping its values to the closest real defined value. For the cosine, clamp input values lower than 1 to 1. In the case of the tangent, where the limit value is infinite, clamp it to -inf or +inf. References #78377 Fixes godotengine/godot-proposals#7110
157 lines
8.6 KiB
C++
157 lines
8.6 KiB
C++
/**************************************************************************/
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/* variant_utility.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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 VARIANT_UTILITY_H
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#define VARIANT_UTILITY_H
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#include "variant.h"
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struct VariantUtilityFunctions {
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// Math
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static double sin(double arg);
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static double cos(double arg);
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static double tan(double arg);
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static double sinh(double arg);
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static double cosh(double arg);
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static double tanh(double arg);
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static double asin(double arg);
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static double acos(double arg);
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static double atan(double arg);
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static double atan2(double y, double x);
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static double asinh(double arg);
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static double acosh(double arg);
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static double atanh(double arg);
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static double sqrt(double x);
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static double fmod(double b, double r);
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static double fposmod(double b, double r);
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static int64_t posmod(int64_t b, int64_t r);
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static Variant floor(Variant x, Callable::CallError &r_error);
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static double floorf(double x);
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static int64_t floori(double x);
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static Variant ceil(Variant x, Callable::CallError &r_error);
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static double ceilf(double x);
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static int64_t ceili(double x);
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static Variant round(Variant x, Callable::CallError &r_error);
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static double roundf(double x);
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static int64_t roundi(double x);
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static Variant abs(const Variant &x, Callable::CallError &r_error);
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static double absf(double x);
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static int64_t absi(int64_t x);
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static Variant sign(const Variant &x, Callable::CallError &r_error);
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static double signf(double x);
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static int64_t signi(int64_t x);
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static double pow(double x, double y);
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static double log(double x);
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static double exp(double x);
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static bool is_nan(double x);
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static bool is_inf(double x);
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static bool is_equal_approx(double x, double y);
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static bool is_zero_approx(double x);
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static bool is_finite(double x);
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static double ease(float x, float curve);
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static int step_decimals(float step);
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static Variant snapped(const Variant &x, const Variant &step, Callable::CallError &r_error);
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static double snappedf(double x, double step);
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static int64_t snappedi(double x, int64_t step);
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static Variant lerp(const Variant &from, const Variant &to, double weight, Callable::CallError &r_error);
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static double lerpf(double from, double to, double weight);
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static double cubic_interpolate(double from, double to, double pre, double post, double weight);
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static double cubic_interpolate_angle(double from, double to, double pre, double post, double weight);
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static double cubic_interpolate_in_time(double from, double to, double pre, double post, double weight,
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double to_t, double pre_t, double post_t);
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static double cubic_interpolate_angle_in_time(double from, double to, double pre, double post, double weight,
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double to_t, double pre_t, double post_t);
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static double bezier_interpolate(double p_start, double p_control_1, double p_control_2, double p_end, double p_t);
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static double bezier_derivative(double p_start, double p_control_1, double p_control_2, double p_end, double p_t);
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static double lerp_angle(double from, double to, double weight);
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static double inverse_lerp(double from, double to, double weight);
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static double remap(double value, double istart, double istop, double ostart, double ostop);
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static double smoothstep(double from, double to, double val);
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static double move_toward(double from, double to, double delta);
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static double deg_to_rad(double angle_deg);
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static double rad_to_deg(double angle_rad);
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static double linear_to_db(double linear);
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static double db_to_linear(double db);
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static Variant wrap(const Variant &p_x, const Variant &p_min, const Variant &p_max, Callable::CallError &r_error);
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static int64_t wrapi(int64_t value, int64_t min, int64_t max);
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static double wrapf(double value, double min, double max);
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static double pingpong(double value, double length);
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static Variant max(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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static double maxf(double x, double y);
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static int64_t maxi(int64_t x, int64_t y);
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static Variant min(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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static double minf(double x, double y);
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static int64_t mini(int64_t x, int64_t y);
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static Variant clamp(const Variant &x, const Variant &min, const Variant &max, Callable::CallError &r_error);
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static double clampf(double x, double min, double max);
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static int64_t clampi(int64_t x, int64_t min, int64_t max);
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static int64_t nearest_po2(int64_t x);
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// Random
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static void randomize();
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static int64_t randi();
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static double randf();
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static double randfn(double mean, double deviation);
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static int64_t randi_range(int64_t from, int64_t to);
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static double randf_range(double from, double to);
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static void seed(int64_t s);
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static PackedInt64Array rand_from_seed(int64_t seed);
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// Utility
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static Variant weakref(const Variant &obj, Callable::CallError &r_error);
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static int64_t _typeof(const Variant &obj);
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static Variant type_convert(const Variant &p_variant, const Variant::Type p_type);
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static String str(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static String error_string(Error error);
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static void print(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void print_rich(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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#undef print_verbose
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static void print_verbose(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void printerr(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void printt(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void prints(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void printraw(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void push_error(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static void push_warning(const Variant **p_args, int p_arg_count, Callable::CallError &r_error);
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static String var_to_str(const Variant &p_var);
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static Variant str_to_var(const String &p_var);
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static PackedByteArray var_to_bytes(const Variant &p_var);
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static PackedByteArray var_to_bytes_with_objects(const Variant &p_var);
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static Variant bytes_to_var(const PackedByteArray &p_arr);
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static Variant bytes_to_var_with_objects(const PackedByteArray &p_arr);
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static int64_t hash(const Variant &p_arr);
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static Object *instance_from_id(int64_t p_id);
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static bool is_instance_id_valid(int64_t p_id);
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static bool is_instance_valid(const Variant &p_instance);
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static uint64_t rid_allocate_id();
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static RID rid_from_int64(uint64_t p_base);
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static bool is_same(const Variant &p_a, const Variant &p_b);
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};
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#endif // VARIANT_UTILITY_H
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