88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*
|
|
* This file is part of libgim.
|
|
*
|
|
* libgim is free software: you can redistribute it and/or modify it under the
|
|
* terms of the GNU General Public License as published by the Free Software
|
|
* Foundation, either version 3 of the License, or (at your option) any later
|
|
* version.
|
|
*
|
|
* libgim 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 General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with libgim. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Copyright 2011 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#ifndef __UTIL_VECTOR_HPP
|
|
#define __UTIL_VECTOR_HPP
|
|
|
|
#include "json/tree.hpp"
|
|
#include "detail/coord.hpp"
|
|
|
|
#include <array>
|
|
#include <iostream>
|
|
#include <initializer_list>
|
|
|
|
namespace util {
|
|
template <size_t S, typename T>
|
|
struct vector : public detail::coord<S,T,detail::xyzw,detail::stpq> {
|
|
using detail::coord<S,T,detail::xyzw,detail::stpq>::coord;
|
|
|
|
bool is_zero (void) const;
|
|
|
|
// vector operators
|
|
T magnitude (void) const;
|
|
T magnitude2 (void) const;
|
|
|
|
T difference (const vector<S,T>&) const;
|
|
T difference2 (const vector<S,T>&) const;
|
|
|
|
vector<S,T>& normalise (void);
|
|
vector<S,T> normalised [[gnu::warn_unused_result]] (void) const;
|
|
|
|
// size operations
|
|
template <size_t D> vector<D,T> redim (void) const;
|
|
template <size_t D> vector<D,T> redim (const util::vector<D,T> &fill) const;
|
|
template <size_t D> vector<D,T> redim (T fill) const;
|
|
|
|
// constants
|
|
static const vector<S,T> ZERO;
|
|
|
|
void sanity (void) const;
|
|
};
|
|
|
|
// free vector operators
|
|
template <typename T> vector<2,T> polar_to_cartesian (const vector<2,T>&);
|
|
|
|
template <typename T> vector<3,T> cross (const vector<3,T>&, const vector<3,T>&);
|
|
template <typename T> vector<3,T> spherical_to_cartesian (const vector<3,T>&);
|
|
template <typename T> vector<3,T> cartesian_to_spherical (const vector<3,T>&);
|
|
|
|
// output and serialisation operators
|
|
template <size_t S, typename T> std::ostream& operator<< (std::ostream&, const vector<S,T>&);
|
|
|
|
template <size_t S, typename T>
|
|
const json::tree::node& operator>> (const json::tree::node&, vector<S,T>&);
|
|
|
|
// convenience typedefs
|
|
typedef vector<2,size_t> vector2u;
|
|
typedef vector<2,long> vector2i;
|
|
|
|
typedef vector<2,float> vector2f;
|
|
typedef vector<3,float> vector3f;
|
|
typedef vector<4,float> vector4f;
|
|
|
|
typedef vector<2,double> vector2d;
|
|
typedef vector<3,double> vector3d;
|
|
typedef vector<3,double> vector4d;
|
|
}
|
|
|
|
#include "vector.ipp"
|
|
|
|
#endif
|
|
|