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// 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, visplane stuff (floor, ceilings).
//
//-----------------------------------------------------------------------------
#ifndef __R_PLANE__
#define __R_PLANE__
#include "r_data.h"
#ifdef __GNUG__
#pragma interface
#endif
// Visplane related.
extern short* lastopening;
typedef void (*planefunction_t) (int top, int bottom);
extern planefunction_t floorfunc;
extern planefunction_t ceilingfunc_t;
extern short floorclip[SCREENWIDTH];
extern short ceilingclip[SCREENWIDTH];
extern fixed_t yslope[SCREENHEIGHT];
extern fixed_t distscale[SCREENWIDTH];
void R_InitPlanes (void);
void R_ClearPlanes (void);
void
R_MapPlane
( int y,
int x1,
int x2 );
void
R_MakeSpans
( int x,
int t1,
int b1,
int t2,
int b2 );
void R_DrawPlanes (void);
visplane_t*
R_FindPlane
( fixed_t height,
int picnum,
int lightlevel );
visplane_t*
R_CheckPlane
( visplane_t* pl,
int start,
int stop );
#endif
//-----------------------------------------------------------------------------
//
// $Log:$
//
//-----------------------------------------------------------------------------
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