Merge commit '0132cbcf33a3ae568c361751a42ff53c41e08f68' as 'external/pure_doom/PureDOOM'

external/pure_doom/PureDOOM/src/DOOM/r_sky.h

@@ -0,0 +1,43 @@
+// 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:
+//        Sky rendering.
+//
+//-----------------------------------------------------------------------------
+
+#ifndef __R_SKY__
+#define __R_SKY__
+
+// SKY, store the number for name.
+#define SKYFLATNAME "F_SKY1"
+
+// The sky map is 256*128*4 maps.
+#define ANGLETOSKYSHIFT 22
+
+extern int skytexture;
+extern int skytexturemid;
+
+// Called whenever the view size changes.
+void R_InitSkyMap(void);
+
+#endif
+
+//-----------------------------------------------------------------------------
+//
+// $Log:$
+//
+//-----------------------------------------------------------------------------