apps/plugins/doom/r_plane.h

   1 /* Emacs style mode select   -*- C++ -*-
   2  *-----------------------------------------------------------------------------
   3  *
   4  *
   5  *  PrBoom a Doom port merged with LxDoom and LSDLDoom
   6  *  based on BOOM, a modified and improved DOOM engine
   7  *  Copyright (C) 1999 by
   8  *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
   9  *  Copyright (C) 1999-2000 by
  10  *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
  11  *
  12  *  This program is free software; you can redistribute it and/or
  13  *  modify it under the terms of the GNU General Public License
  14  *  as published by the Free Software Foundation; either version 2
  15  *  of the License, or (at your option) any later version.
  16  *
  17  *  This program is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, write to the Free Software
  24  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  25  *  02111-1307, USA.
  26  *
  27  * DESCRIPTION:
  28  *      Refresh, visplane stuff (floor, ceilings).
  29  *
  30  *-----------------------------------------------------------------------------*/
  31
  32 #ifndef __R_PLANE__
  33 #define __R_PLANE__
  34
  35 #include "r_data.h"
  36
  37 #ifdef __GNUG__
  38 #pragma interface
  39 #endif
  40
  41 /* killough 10/98: special mask indicates sky flat comes from sidedef */
  42 #define PL_SKYFLAT (0x80000000)
  43
  44 /* Visplane related. */
  45 extern  short *lastopening;
  46
  47 extern short floorclip[], ceilingclip[];
  48 extern fixed_t yslope[], distscale[];
  49
  50 void R_InitPlanes(void);
  51 void R_ClearPlanes(void);
  52 void R_DrawPlanes (void);
  53
  54 visplane_t *R_FindPlane(
  55    fixed_t height,
  56    int picnum,
  57    int lightlevel,
  58    fixed_t xoffs,  /* killough 2/28/98: add x-y offsets */
  59    fixed_t yoffs
  60 );
  61
  62 visplane_t *R_CheckPlane(visplane_t *pl, int start, int stop);
  63 visplane_t *R_DupPlane(const visplane_t *pl, int start, int stop);
  64
  65 #endif