r_things.h

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//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005-2014 Simon Howard
//
// 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.
//
// DESCRIPTION:
//  Rendering of moving objects, sprites.
//
 
 
#ifndef __R_THINGS__
#define __R_THINGS__
 
 
 
#define MAXVISSPRITES   128
 
extern vissprite_t  vissprites[MAXVISSPRITES];
extern vissprite_t* vissprite_p;
extern vissprite_t  vsprsortedhead;
 
// Constant arrays used for psprite clipping
//  and initializing clipping.
extern short        negonearray[SCREENWIDTH];
extern short        screenheightarray[SCREENWIDTH];
 
// vars for R_DrawMaskedColumn
extern short*       mfloorclip;
extern short*       mceilingclip;
extern fixed_t      spryscale;
extern fixed_t      sprtopscreen;
 
extern fixed_t      pspritescale;
extern fixed_t      pspriteiscale;
 
 
void R_DrawMaskedColumn (column_t* column);
 
 
void R_SortVisSprites (void);
 
void R_AddSprites (sector_t* sec);
void R_AddPSprites (void);
void R_DrawSprites (void);
void R_InitSprites (char** namelist);
void R_ClearSprites (void);
void R_DrawMasked (void);
 
void
R_ClipVisSprite
( vissprite_t*      vis,
  int           xl,
  int           xh );
 
 
#endif