intersection_query_engine2.h

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// Copyright (c) 2018 Doyub Kim
//
// I am making my contributions/submissions to this project solely in my
// personal capacity and am not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef INCLUDE_JET_INTERSECTION_QUERY_ENGINE2_H_
#define INCLUDE_JET_INTERSECTION_QUERY_ENGINE2_H_
 
#include <jet/bounding_box2.h>
#include <jet/constants.h>
 
#include <functional>
 
namespace jet {
 
template <typename T>
struct ClosestIntersectionQueryResult2 {
    const T* item = nullptr;
    double distance = kMaxD;
};
 
template <typename T>
using ClosestIntersectionDistanceFunc2 =
    std::function<double(const T&, const Vector2D&)>;
 
template <typename T>
using BoxIntersectionTestFunc2 =
    std::function<bool(const T&, const BoundingBox2D&)>;
 
template <typename T>
using RayIntersectionTestFunc2 = std::function<bool(const T&, const Ray2D&)>;
 
template <typename T>
using GetRayIntersectionFunc2 = std::function<double(const T&, const Ray2D&)>;
 
template <typename T>
using IntersectionVisitorFunc2 = std::function<void(const T&)>;
 
template <typename T>
class IntersectionQueryEngine2 {
 public:
    virtual bool intersects(
        const BoundingBox2D& box,
        const BoxIntersectionTestFunc2<T>& testFunc) const = 0;
 
    virtual bool intersects(
        const Ray2D& ray,
        const RayIntersectionTestFunc2<T>& testFunc) const = 0;
 
    virtual void forEachIntersectingItem(
        const BoundingBox2D& box, const BoxIntersectionTestFunc2<T>& testFunc,
        const IntersectionVisitorFunc2<T>& visitorFunc) const = 0;
 
    virtual void forEachIntersectingItem(
        const Ray2D& ray, const RayIntersectionTestFunc2<T>& testFunc,
        const IntersectionVisitorFunc2<T>& visitorFunc) const = 0;
 
    virtual ClosestIntersectionQueryResult2<T> closestIntersection(
        const Ray2D& ray, const GetRayIntersectionFunc2<T>& testFunc) const = 0;
};
 
}  // namespace jet
 
#endif  // INCLUDE_JET_INTERSECTION_QUERY_ENGINE2_H_