// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// DESCRIPTION:
//        Refresh module, BSP traversal and handling.
//
//-----------------------------------------------------------------------------

#ifndef __R_BSP__
#define __R_BSP__


#include "r_defs.h"


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 doom_boolean segtextured;

// false if the back side is the same plane
extern doom_boolean markfloor;
extern doom_boolean markceiling;

extern doom_boolean skymap;

extern drawseg_t drawsegs[MAXDRAWSEGS];
extern drawseg_t* ds_p;

extern lighttable_t** hscalelight;
extern lighttable_t** vscalelight;
extern lighttable_t** dscalelight;


typedef void (*drawfunc_t) (int start, int stop);


// BSP?
void R_ClearClipSegs(void);
void R_ClearDrawSegs(void);
void R_RenderBSPNode(int bspnum);


#endif

//-----------------------------------------------------------------------------
//
// $Log:$
//
//-----------------------------------------------------------------------------