v4k-git-backup/demos/ports/doom/src/r_sky.c

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2023-08-10 14:30:56 +00:00
// 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.
//
// $Log:$
//
// 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?
//
//
//-----------------------------------------------------------------------------
#include "doom_config.h"
#include "m_fixed.h" // Needed for FRACUNIT.
#include "r_data.h" // Needed for Flat retrieval.
#include "r_sky.h"
//
// sky mapping
//
int skyflatnum;
int skytexture;
int skytexturemid;
//
// R_InitSkyMap
// Called whenever the view size changes.
//
void R_InitSkyMap(void)
{
skytexturemid = 100 * FRACUNIT;
}