BVHNode.hpp

#include "core/Scene.hpp"
#include "interfaces/IHittable.hpp"
 
#ifndef __BVH_NODE_HPP__
    #define __BVH_NODE_HPP__
 
namespace Raytracer::Utils
{
    class BVHNode : public Interfaces::IHittable {
      private:
        std::shared_ptr<Interfaces::IHittable> _left;
        std::shared_ptr<Interfaces::IHittable> _right;
        AxisAlignedBBox _bbox;
 
      public:
        BVHNode() = default;
        BVHNode(Core::Scene list);
        BVHNode(std::vector<std::shared_ptr<Interfaces::IHittable>> &objects,
            size_t start, size_t end);
        bool hit(const Core::Ray &ray, Interval interval,
            Core::Payload &payload) const override;
        AxisAlignedBBox boundingBox() const override;
        static bool boxCompare(const std::shared_ptr<Interfaces::IHittable> &a,
            const std::shared_ptr<Interfaces::IHittable> &b, int axis);
        static bool boxXCompare(
            const std::shared_ptr<Interfaces::IHittable> &a,
            const std::shared_ptr<Interfaces::IHittable> &b);
        static bool boxYCompare(
            const std::shared_ptr<Interfaces::IHittable> &a,
            const std::shared_ptr<Interfaces::IHittable> &b);
        static bool boxZCompare(
            const std::shared_ptr<Interfaces::IHittable> &a,
            const std::shared_ptr<Interfaces::IHittable> &b);
        GET_SET(std::shared_ptr<Interfaces::IHittable>, left)
        GET_SET(std::shared_ptr<Interfaces::IHittable>, right)
    };
} // namespace Raytracer::Utils
 
#endif /* __BVH_NODE_HPP__ */