//
// Created by dtouch on 23-5-14.
//

#ifndef RENDERSDF_AABB_H
#define RENDERSDF_AABB_H

#include "Common.h"

extern float minFloat;
extern float maxFloat;

class AABB {
public:
    EVec3f pMin, pMax;
public:
    AABB();

    explicit AABB(const EVec3f& p);

    AABB(const EVec3f& p1, const EVec3f& p2);

    void unionSelf(const AABB &b2);

    void unionSelf(const EVec3f &p);

    static inline AABB getUnion(const AABB &b1, const AABB &b2) {
        AABB b = b1;
        b.unionSelf(b2);
        return b;
    }

    static inline AABB getUnion(const AABB &b1, const EVec3f &p) {
        AABB b = b1;
        b.unionSelf(p);
        return b;
    }

    static inline bool intersect(const AABB &b1, const AABB &b2) {
        return (b1.pMin.x() <= b2.pMax.x() && b1.pMax.x() >= b2.pMin.x()) &&
               (b1.pMin.y() <= b2.pMax.y() && b1.pMax.y() >= b2.pMin.y()) &&
               (b1.pMin.z() <= b2.pMax.z() && b1.pMax.z() >= b2.pMin.z());
    }
private:
    static inline float greaterFloat(float a, float b) {
        return a > b ? a : b;
    }
    static inline float smallerFloat(float a, float b) {
        return a < b ? a : b;
    }
};


#endif //RENDERSDF_AABB_H