mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-25 21:35:41 +00:00
125 lines
4.4 KiB
C++
125 lines
4.4 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2015 Bolero MURAKAMI
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================*/
|
|
#ifndef SPROUT_DARKROOM_INTERSECTS_INTERSECTION_HPP
|
|
#define SPROUT_DARKROOM_INTERSECTS_INTERSECTION_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/tuple/tuple.hpp>
|
|
#include <sprout/utility/forward.hpp>
|
|
#include <sprout/type_traits/enabler_if.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 {
|
|
//
|
|
// intersection
|
|
//
|
|
typedef sprout::tuples::tuple<
|
|
bool,
|
|
double,
|
|
sprout::darkroom::coords::vector3d_t,
|
|
sprout::darkroom::coords::vector3d_t,
|
|
sprout::darkroom::materials::material,
|
|
bool
|
|
> intersection;
|
|
|
|
//
|
|
// has_is_from_inside
|
|
//
|
|
template<typename T>
|
|
struct has_is_from_inside
|
|
: public sprout::bool_constant<(sprout::darkroom::access::size<T>::value >= 6)>
|
|
{};
|
|
|
|
//
|
|
// does_intersect
|
|
// distance
|
|
// point_of_intersection
|
|
// normal
|
|
// material
|
|
// is_from_inside
|
|
//
|
|
template<typename T>
|
|
inline SPROUT_CONSTEXPR auto
|
|
does_intersect(T&& t)
|
|
SPROUT_NOEXCEPT_IF_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>
|
|
inline SPROUT_CONSTEXPR auto
|
|
distance(T&& t)
|
|
SPROUT_NOEXCEPT_IF_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>
|
|
inline SPROUT_CONSTEXPR auto
|
|
point_of_intersection(T&& t)
|
|
SPROUT_NOEXCEPT_IF_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>
|
|
inline SPROUT_CONSTEXPR auto
|
|
normal(T&& t)
|
|
SPROUT_NOEXCEPT_IF_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>
|
|
inline SPROUT_CONSTEXPR auto
|
|
material(T&& t)
|
|
SPROUT_NOEXCEPT_IF_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));
|
|
}
|
|
template<
|
|
typename T,
|
|
typename sprout::enabler_if<sprout::darkroom::intersects::has_is_from_inside<typename std::decay<T>::type>::value>::type = sprout::enabler
|
|
>
|
|
inline SPROUT_CONSTEXPR auto
|
|
is_from_inside(T&& t)
|
|
SPROUT_NOEXCEPT_IF_EXPR(sprout::darkroom::access::get<5>(SPROUT_FORWARD(T, t)))
|
|
-> decltype(sprout::darkroom::access::get<5>(SPROUT_FORWARD(T, t)))
|
|
{
|
|
return sprout::darkroom::access::get<5>(SPROUT_FORWARD(T, t));
|
|
}
|
|
template<
|
|
typename T,
|
|
typename sprout::enabler_if<!sprout::darkroom::intersects::has_is_from_inside<typename std::decay<T>::type>::value>::type = sprout::enabler
|
|
>
|
|
inline SPROUT_CONSTEXPR typename sprout::darkroom::access::element<5, sprout::darkroom::intersects::intersection>::type
|
|
is_from_inside(T&&)
|
|
SPROUT_NOEXCEPT_IF_EXPR((typename sprout::darkroom::access::element<5, sprout::darkroom::intersects::intersection>::type()))
|
|
{
|
|
return typename sprout::darkroom::access::element<5, sprout::darkroom::intersects::intersection>::type();
|
|
}
|
|
|
|
//
|
|
// make_intersection
|
|
//
|
|
template<typename... Elements>
|
|
inline SPROUT_CONSTEXPR sprout::tuples::tuple<Elements...>
|
|
make_intersection(Elements const&... elems) {
|
|
return sprout::tuples::make_tuple(elems...);
|
|
}
|
|
} // namespace intersects
|
|
} // namespace darkroom
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_DARKROOM_INTERSECTS_INTERSECTION_HPP
|