/*
    Copyright (C) 1996-1997  Id Software, Inc.
    Copyright (C) 1997       Greg Lewis

    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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

    See file, 'COPYING', for details.
*/

#ifndef QBSP_CSG4_HH
#define QBSP_CSG4_HH

extern int csgmergefaces;

// build surfaces is also used by GatherNodeFaces
surface_t *BuildSurfaces(const std::map<int, face_t *> &planefaces);
face_t *NewFaceFromFace(face_t *in);
void SplitFace(face_t *in, const qbsp_plane_t *split, face_t **front, face_t **back);
void UpdateFaceSphere(face_t *in);

#endif