YiAABB.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_AABB_H_
#define _YI_AABB_H_

#include "framework/YiPredef.h"

#include <glm/fwd.hpp>
#include <glm/vec3.hpp>


class CYIRay;

class CYIAABB
{
public:
    CYIAABB();

    CYIAABB(const glm::vec3 &rMinimumExtent, const glm::vec3 &rMaximumExtent);

    void Enlarge(const CYIAABB &box);

    glm::vec3 GetCentroid() const;

    glm::vec3 GetHalfDimensions() const;

    float GetWidth() const;
    float GetHeight() const;
    float GetDepth() const;

    const glm::vec3 &GetTopLeft() const;

    const glm::vec3 &GetBottomRight() const;

    bool Intersects(const CYIRay &rRay, glm::vec3 *pCollision = nullptr) const;

    bool Intersects(const CYIAABB &rOther) const;

    void SetCorners(const glm::vec3 &rMinimumExtent, const glm::vec3 &rMaximumExtent);

    CYIAABB Intersection(const CYIAABB &rOther) const;

    bool IsValid() const;

    void Transform(const glm::mat4 &transform);

    bool operator==(const CYIAABB &other) const;
    bool operator!=(const CYIAABB &other) const;

private:
    void AlignToAxes();

    glm::vec3 m_Min;
    glm::vec3 m_Max;
};

#endif // _YI_AABB_H_