/* * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * Copyright 2015-2018 Danny Robson <danny@nerdcruft.net> */ #pragma once #include "./fwd.hpp" #include "../point.hpp" #include <type_traits> /////////////////////////////////////////////////////////////////////////////// namespace cruft::geom { /// Tests whether any part of two shapes overlap. /// /// Returns true even if the the edges of the shapes are co-linear. template < size_t S, typename T, template <size_t,typename> class A, template <size_t,typename> class B > bool intersects (A<S,T>, B<S,T>); /// Tests whether the entirety of shape `B` is inclusively contained /// within the shape `A`. template < size_t S, typename T, template<size_t,typename> class A, template<size_t,typename> class B > bool covers (A<S,T> const&, B<S,T> const&); /// Returns a minimum squared distance between two shapes. template < size_t S, typename T, template <size_t,typename> class A, template <size_t,typename> class B > T distance2 (A<S,T>, B<S,T>); // disable distance for point-point arguments given it's already // explicitly specified in the point header. template < size_t S, typename T, template <size_t,typename> class A, template <size_t,typename> class B, typename = std::enable_if_t< !std::is_same_v<cruft::point<S,T>, A> && !std::is_same_v<cruft::point<S,T>, B> > > T distance (A<S,T>, B<S,T>); /// Returns an AABB for the supplied shape. template < size_t S, typename T, template <size_t,typename> class K > aabb<S,T> bounds (K<S,T>); /// Returns a bounding AABB for all supplied items template <typename... Args> auto bounds (Args &&...args) { return (bounds (args) | ...); } /// Returns a maximum distance across a shape. template < size_t S, typename T, template <size_t,typename> class K > T diameter (K<S,T>); /// Returns the closest point on a shape to the supplied point. template < size_t S, typename T, template <size_t,typename> class K > point<S,T> closest (K<S,T>, point<S,T>); template < size_t S, typename T, template <size_t,typename> class K > vector<S,T> magnitude (K<S,T>); template < size_t S, typename T, template <size_t,typename> class K > K<S,T> scale (K<S,T>, T); }