84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/**
|
|
This file is a part of our_dick
|
|
Copyright (C) 2020 rexy712
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero 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 Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef REXY_DETAIL_MATH_HPP
|
|
#define REXY_DETAIL_MATH_HPP
|
|
|
|
#include "fwd_declare.hpp"
|
|
|
|
namespace math{
|
|
|
|
namespace detail{
|
|
//sentinel classes saying how to initialize some math classes
|
|
struct zero_initialize_t {};
|
|
struct no_initialize_t {};
|
|
struct id_initialize_t {};
|
|
struct manual_initialize_t {};
|
|
}
|
|
|
|
//instantiation of sentinels
|
|
static inline constexpr detail::zero_initialize_t zero_initialize;
|
|
static inline constexpr detail::no_initialize_t no_initialize;
|
|
static inline constexpr detail::id_initialize_t id_initialize;
|
|
static inline constexpr detail::manual_initialize_t manual_initialize;
|
|
|
|
template<Scalar T>
|
|
static constexpr T pi(void){
|
|
return static_cast<T>(3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821);
|
|
}
|
|
template<Scalar T>
|
|
static constexpr T to_degrees(T t){
|
|
return (t * 180.0) / pi<T>();
|
|
}
|
|
template<Scalar T>
|
|
static constexpr T to_radians(T t){
|
|
return (t * pi<T>()) / 180.0;
|
|
}
|
|
|
|
template<Scalar T>
|
|
static constexpr T clamp(const T& t, const T& min, const T& max){
|
|
if(t < min)
|
|
return min;
|
|
if(t > max)
|
|
return max;
|
|
return t;
|
|
}
|
|
template<Scalar T>
|
|
static constexpr T clamp_min(const T& t, const T& min){
|
|
if(t < min)
|
|
return min;
|
|
return t;
|
|
}
|
|
template<Scalar T>
|
|
static constexpr T clamp_max(const T& t, const T& max){
|
|
if(t > max)
|
|
return max;
|
|
return t;
|
|
}
|
|
|
|
}
|
|
constexpr long double operator"" _rad(long double f){
|
|
return f;
|
|
}
|
|
constexpr long double operator"" _deg(long double f){
|
|
return math::to_radians(f);
|
|
}
|
|
|
|
|
|
#endif
|