ref: b69888222b2a251bab3fa9c1d44668ac8f53c15a
dir: /src/doom/r_sky.c/
//
// 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:
// Sky rendering. The DOOM sky is a texture map like any
// wall, wrapping around. A 1024 columns equal 360 degrees.
// The default sky map is 256 columns and repeats 4 times
// on a 320 screen?
//
//
// Needed for FRACUNIT.
#include "m_fixed.h"
// Needed for Flat retrieval.
#include "r_data.h"
#include "r_sky.h"
//
// sky mapping
//
int skyflatnum;
int skytexture;
int skytexturemid;
//
// R_InitSkyMap
// Called whenever the view size changes.
//
void R_InitSkyMap (void)
{
// skyflatnum = R_FlatNumForName ( SKYFLATNAME );
skytexturemid = SCREENHEIGHT/2*FRACUNIT;
}