1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout synced 2024-11-12 21:09:01 +00:00
Sprout/sprout/darkroom/intersects/intersection.hpp
2011-11-26 15:20:35 +09:00

85 lines
2.9 KiB
C++

#ifndef SPROUT_DARKROOM_INTERSECTS_INTERSECTION_HPP
#define SPROUT_DARKROOM_INTERSECTS_INTERSECTION_HPP
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/darkroom/access/access.hpp>
#include <sprout/darkroom/coords/vector.hpp>
#include <sprout/darkroom/materials/material.hpp>
namespace sprout {
namespace darkroom {
namespace intersects {
//
// does_intersect
// distance
// point_of_intersection
// normal
// material
//
template<typename T>
SPROUT_CONSTEXPR auto does_intersect(
T&& t
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<0>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<0>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<0>(sprout::forward<T>(t));
}
template<typename T>
SPROUT_CONSTEXPR auto distance(
T&& t
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<1>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<1>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<1>(sprout::forward<T>(t));
}
template<typename T>
SPROUT_CONSTEXPR auto point_of_intersection(
T&& t
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<2>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<2>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<2>(sprout::forward<T>(t));
}
template<typename T>
SPROUT_CONSTEXPR auto normal(
T&& t
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<3>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<3>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<3>(sprout::forward<T>(t));
}
template<typename T>
SPROUT_CONSTEXPR auto material(
T&& t
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<4>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<4>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<4>(sprout::forward<T>(t));
}
//
// make_intersection
//
template<typename Distance, typename Point, typename Normal, typename Material>
SPROUT_CONSTEXPR sprout::tuples::tuple<bool, Distance, Point, Normal, Material>
make_intersection(bool b, Distance const& dist, Point const& p, Normal const& nor, Material const& mat) {
return sprout::tuples::make_tuple(b, dist, p, nor, mat);
}
//
// intersection
//
typedef sprout::tuples::tuple<
bool,
double,
sprout::darkroom::coords::vector3d,
sprout::darkroom::coords::vector3d,
sprout::darkroom::materials::material
> intersection;
} // namespace intersects
} // namespace darkroom
} // namespace sprout
#endif // #ifndef SPROUT_DARKROOM_INTERSECTS_INTERSECTION_HPP