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/******************************************************************/
/* This file is part of the homework assignments for CSCI-427/527 */
/* at The College of William & Mary and authored by Pieter Peers. */
/* No part of this file, whether altered or in original form, can */
/* be distributed or used outside the context of CSCI-427/527 */
/* without consent of either the College of William & Mary or */
/* Pieter Peers. */
/******************************************************************/
#ifndef _BOUNDINGBOX_H_
#define _BOUNDINGBOX_H_
#include <ostream>
#include "ray.h"
#include "vec3d.h"
#include "transformation3d.h"
class boundingBox {
public:
/////////////////
// Constructor //
/////////////////
boundingBox(void);
boundingBox(const vec3d& lfb, const vec3d& rbt);
boundingBox(const boundingBox& bb);
//////////////
// Operator //
//////////////
boundingBox& operator=(const boundingBox& src);
boundingBox& operator+=(const boundingBox& bb);
boundingBox& operator+=(const vec3d& point);
boundingBox operator+(const boundingBox& bb) const;
/////////////
// Methods //
/////////////
bool isHit(const ray& r) const;
vec3d center(void) const;
vec3d corner(bool left, bool front, bool bottom) const;
vec3d size(void) const;
//////////////
// Mutators //
//////////////
boundingBox& transform(const transformation3d& t);
boundingBox& inverseTransform(const transformation3d& t);
/////////////
// Friends //
/////////////
friend void swap(boundingBox& a, boundingBox& b) { a._swap(b); }
friend boundingBox transform(const boundingBox& bb, const transformation3d& t) { return boundingBox(bb).transform(t); }
friend boundingBox inverseTransform(const boundingBox& bb, const transformation3d& t) { return boundingBox(bb).inverseTransform(t); }
friend std::ostream& operator<<(std::ostream& s, const boundingBox& bb)
{
s << bb._lfb << " - " << bb._rbt;
return s;
}
private:
/////////////////////
// Private Methods //
/////////////////////
void _swap(boundingBox& bb);
void _assign(const boundingBox& bb);
//////////////////
// Data Members //
//////////////////
vec3d _lfb, _rbt;
};
#endif /* _BOUNDINGBOX_H_ */
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