SG_BBox.h

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef __SG_BBOX_H__
#define __SG_BBOX_H__
 
#include "MT_Scalar.h"
#include "MT_Point3.h"
#include "MT_Vector3.h"
#include "MT_Transform.h"

#include <vector> 

#ifdef WITH_CXX_GUARDEDALLOC
#include "MEM_guardedalloc.h"
#endif

class SG_Node;

class SG_BBox
{
    MT_Point3 m_min;
    MT_Point3 m_max;
public:
    typedef enum { INSIDE, INTERSECT, OUTSIDE } intersect;
    SG_BBox();
    SG_BBox(const MT_Point3 &min, const MT_Point3 &max);
    SG_BBox(const SG_BBox &other, const MT_Transform &world);
    SG_BBox(const SG_BBox &other);
    ~SG_BBox();

    SG_BBox& operator +=(const MT_Point3 &point);
    SG_BBox& operator +=(const SG_BBox &bbox);
    
    SG_BBox operator + (const SG_BBox &bbox2) const;
#if 0

    void translate(const MT_Vector3 &dx);
    void scale(const MT_Vector3 &size, const MT_Point3 &point = MT_Point3(0., 0., 0.));
#endif
    SG_BBox transform(const MT_Transform &world) const;
    MT_Scalar volume() const;
    
    bool inside(const MT_Point3 &point) const;
    
    bool inside(const SG_BBox &other) const;

    bool outside(const SG_BBox &other) const;
    
    bool intersects(const SG_BBox &other) const;
    
    intersect test(const SG_BBox &other) const;
    
    void get(MT_Point3 *box, const MT_Transform &world) const;
    void getaa(MT_Point3 *box, const MT_Transform &world) const;
    
    void getmm(MT_Point3 *box, const MT_Transform &world) const;

    void split(SG_BBox &left, SG_BBox &right) const;
    
    friend class SG_Tree;


#ifdef WITH_CXX_GUARDEDALLOC
public:
    void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:SG_BBox"); }
    void operator delete( void *mem ) { MEM_freeN(mem); }
#endif
};

#endif /* __SG_BBOX_H__ */