// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id: R_bsp.h,v 1.1 2000/04/09 18:22:27 proff_fs Exp $
//
//  PRBOOM/GLBOOM (C) Florian 'Proff' Schulze (florian.proff.schulze@gmx.net)
//  based on
//  BOOM, a modified and improved DOOM engine
//  Copyright (C) 1999 by
//  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
//
//  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.
//
// DESCRIPTION:
//      Refresh module, BSP traversal and handling.
//
//-----------------------------------------------------------------------------

#ifndef __R_BSP__
#define __R_BSP__

extern seg_t    *curline;
extern side_t   *sidedef;
extern line_t   *linedef;
extern sector_t *frontsector;
extern sector_t *backsector;
extern int      rw_x;
extern int      rw_stopx;
extern H_boolean  segtextured;
extern H_boolean  markfloor;      // false if the back side is the same plane
extern H_boolean  markceiling;

// old code -- killough:
// extern drawseg_t drawsegs[MAXDRAWSEGS];
// new code -- killough:
extern drawseg_t *drawsegs;
extern unsigned maxdrawsegs;

extern drawseg_t *ds_p;

void R_ClearClipSegs(void);
void R_ClearDrawSegs(void);
void R_RenderBSPNode(int bspnum);
int R_DoorClosed(void);   // killough 1/17/98

// killough 4/13/98: fake floors/ceilings for deep water / fake ceilings:
sector_t *R_FakeFlat(sector_t *, sector_t *, int *, int *, H_boolean);

#endif

//----------------------------------------------------------------------------
//
// $Log: R_bsp.h,v $
// Revision 1.1  2000/04/09 18:22:27  proff_fs
// Initial revision
//
// Revision 1.5  1998/05/03  22:48:03  killough
// beautification, use new headers, change decls
//
// Revision 1.4  1998/04/14  08:16:15  killough
// Fix light levels on 2s textures
//
// Revision 1.3  1998/02/02  13:31:53  killough
// Add HOM detector
//
// Revision 1.2  1998/01/26  19:27:33  phares
// First rev with no ^Ms
//
// Revision 1.1.1.1  1998/01/19  14:03:10  rand
// Lee's Jan 19 sources
//
//
//----------------------------------------------------------------------------