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diff --git a/src/r_state.h b/src/r_state.h
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+/* Emacs style mode select   -*- C++ -*-
+ *-----------------------------------------------------------------------------
+ *
+ *
+ *  PrBoom: a Doom port merged with LxDoom and LSDLDoom
+ *  based on BOOM, a modified and improved DOOM engine
+ *  Copyright (C) 1999 by
+ *  id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
+ *  Copyright (C) 1999-2000 by
+ *  Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
+ *  Copyright 2005, 2006 by
+ *  Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ *  02111-1307, USA.
+ *
+ * DESCRIPTION:
+ *      Refresh/render internal state variables (global).
+ *
+ *-----------------------------------------------------------------------------*/
+
+
+#ifndef __R_STATE__
+#define __R_STATE__
+
+// Need data structure definitions.
+#include "d_player.h"
+#include "r_data.h"
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+
+//
+// Refresh internal data structures,
+//  for rendering.
+//
+
+// needed for texture pegging
+extern fixed_t *textureheight;
+
+extern int scaledviewwidth;
+
+extern int firstflat, numflats;
+
+// for global animation
+extern int *flattranslation;
+extern int *texturetranslation;
+
+// Sprite....
+extern int firstspritelump;
+extern int lastspritelump;
+extern int numspritelumps;
+
+//
+// Lookup tables for map data.
+//
+extern int              numsprites;
+extern spritedef_t      *sprites;
+
+extern int              numvertexes;
+extern vertex_t         *vertexes;
+
+extern int              numsegs;
+extern seg_t            *segs;
+
+extern int              numsectors;
+extern sector_t         *sectors;
+
+extern int              numsubsectors;
+extern subsector_t      *subsectors;
+
+extern int              numnodes;
+extern node_t           *nodes;
+
+extern int              numlines;
+extern line_t           *lines;
+
+extern int              numsides;
+extern side_t           *sides;
+
+
+//
+// POV data.
+//
+extern fixed_t          viewx;
+extern fixed_t          viewy;
+extern fixed_t          viewz;
+extern angle_t          viewangle;
+extern player_t         *viewplayer;
+extern angle_t          clipangle;
+extern int              viewangletox[FINEANGLES/2];
+extern angle_t          xtoviewangle[MAX_SCREENWIDTH+1];  // killough 2/8/98
+extern fixed_t          rw_distance;
+extern angle_t          rw_normalangle;
+
+// angle to line origin
+extern int              rw_angle1;
+
+extern visplane_t       *floorplane;
+extern visplane_t       *ceilingplane;
+
+#endif