1 files changed, 67 insertions, 0 deletions

diff --git a/src/r_plane.h b/src/r_plane.h
new file mode 100644
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--- /dev/null
+++ b/src/r_plane.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, visplane stuff (floor, ceilings).
+ *
+ *-----------------------------------------------------------------------------*/
+
+#ifndef __R_PLANE__
+#define __R_PLANE__
+
+#include "r_data.h"
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+/* killough 10/98: special mask indicates sky flat comes from sidedef */
+#define PL_SKYFLAT (0x80000000)
+
+/* Visplane related. */
+extern int *lastopening; // dropoff overflow
+
+extern int floorclip[], ceilingclip[]; // dropoff overflow
+extern fixed_t yslope[], distscale[];
+
+void R_InitPlanes(void);
+void R_ClearPlanes(void);
+void R_DrawPlanes (void);
+
+visplane_t *R_FindPlane(
+                        fixed_t height,
+                        int picnum,
+                        int lightlevel,
+                        fixed_t xoffs,  /* killough 2/28/98: add x-y offsets */
+                        fixed_t yoffs
+                       );
+
+visplane_t *R_CheckPlane(visplane_t *pl, int start, int stop);
+visplane_t *R_DupPlane(const visplane_t *pl, int start, int stop);
+
+#endif