/* 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__

#ifdef __GNUG__
#pragma interface
#endif


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 boolean		segtextured;

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

extern boolean		skymap;

extern drawseg_t*	drawsegs;
extern int		numdrawsegs;
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
/*-----------------------------------------------------------------------------*/

/* $Log:$*/

/*-----------------------------------------------------------------------------*/
