refactor: apply review changes

engine/inc/renderer/3d/bbox/bbox.hpp

@@ -42,20 +42,19 @@ class BBox : public CoreBBox {
   const BBoxFace& getBottomFace() { return _bottomFace; }
 
   /** @returns the lower (x, y, z) boundary of the box. */
-  const Vec4 min();
+  Vec4 min();
   /** @returns the upper (x, y, z) boundary of the box. */
-  const Vec4 max();
+  Vec4 max();
   /**
-   * @returns void;
    * @param res_min Vec4 to store the min result
    * @param res_max Vec4 to store the min result
    * @brief Calc and stores the min and max points of box at a single loop
    * */
-  void calcMinMax(Vec4& res_min, Vec4& res_max);
+  void getMinMax(Vec4* res_min, Vec4* res_max);
 
  protected:
   float _height, _depth, _width;
-  Vec4 _centerVector, _min;
+  Vec4 _centerVector;
   /** Front face (further on z-axis) */
   BBoxFace _frontFace;
   /** Back face (nearer on z-axis) */