libcruft-util/ray.hpp

58 lines
1.4 KiB
C++

/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright 2015 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_RAY_HPP
#define __UTIL_RAY_HPP
#include "point.hpp"
#include "aabb.hpp"
#include "plane.hpp"
#include "sphere.hpp"
#include "vector.hpp"
#include <iostream>
namespace util {
template <size_t S, typename T>
struct ray {
ray (point<S,T> origin,
vector<S,T> direction);
// intersection tests
T intersect (plane<S,T>) const;
T intersect (AABB<S,T>) const;
T intersect (sphere<S,T>) const;
// queries
T closest (point<S,T>) const;
util::point<S,T> at (T) const;
// data members
point<S,T> origin;
vector<S,T> direction;
};
template <size_t S, typename T>
std::ostream& operator<< (std::ostream&, ray<S,T>);
typedef ray<2,float> ray2f;
typedef ray<3,float> ray3f;
}
#endif