boundingBox.h

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#pragma once
 
#include <glm/glm.hpp>
#include <optional>
 
namespace Saga {
 
    struct BoundingBox {
        static float const oo; 
 
        glm::vec3 bounds[2]; 
 
        // TODO: Cache these operations, with a dirty mask that tells you when bounds was altered (for recomputing these values)
        glm::vec3 centroid();
 
        glm::vec3 size();
 
 
        float surfaceArea();
 
        float volume();
 
        bool inside(glm::vec3 point);
 
        bool collidesWithRay(glm::vec4 point, glm::vec4 dir);
 
        std::optional<float> findCollisionWithRay(glm::vec4 point, glm::vec4 dir);
 
        bool intersectWith(const BoundingBox &other);
 
        float lowerBoundSquareDistanceTo(const glm::vec3 point);
 
        std::optional<float> findCollisionWithBox(glm::vec3 centroid, glm::vec3 dir, glm::vec3 size);
 
        static BoundingBox getExtremeBound();
 
        static BoundingBox mergeBox(const BoundingBox &a, const BoundingBox &b);
 
        static BoundingBox confineBox(const BoundingBox &a, const BoundingBox &b);
 
        static BoundingBox pointBox(const glm::vec3 &point);
    };
 
 
};