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109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
/*
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** pskies.cpp
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** Handling Build skies
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**
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**---------------------------------------------------------------------------
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** Copyright 2019 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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**
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*/
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#include "psky.h"
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#include "gamefuncs.h"
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#include "tarray.h"
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#include "texinfo.h"
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#include "texturemanager.h"
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static TArray<SkyDefinition> skies;
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static SkyDefinition *FindSky(FTextureID texid)
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{
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for (auto& sky : skies)
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if (texid == sky.texid) return &sky;
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return nullptr;
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}
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void addSky(SkyDefinition& sky, FTextureID texid)
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{
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SkyDefinition* old = FindSky(texid);
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sky.texid = texid;
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if (sky.scale == 0) sky.scale = 1.f;
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if (old) *old = sky;
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else skies.Push(sky);
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}
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SkyDefinition getSky(FTextureID texid)
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{
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SkyDefinition result;
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auto sky = FindSky(texid);
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if (sky) result = *sky;
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else
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{
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sky = FindSky(FNullTextureID());
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if (sky)
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result = *sky;
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else
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{
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result = {};
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result.scale = 1.f;
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}
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auto tex = TexMan.GetGameTexture(texid);
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if (tex->isValid())
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{
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int w = (int)tex->GetDisplayWidth();
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if (result.lognumtiles == 0 || w >= 256)
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{
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if (w < 512) result.lognumtiles = 2;
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else if (w < 1024) result.lognumtiles = 1;
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else result.lognumtiles = 0;
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}
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}
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}
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return result;
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}
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void defineSky(const char* tilename, int lognumtiles, const int16_t* tileofs, int yoff, float yscale, int yoff2)
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{
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FTextureID texid = FNullTextureID();
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if (tilename)
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{
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texid = TexMan.CheckForTexture(tilename, ETextureType::Any);
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if (!texid.isValid()) return;
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}
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SkyDefinition sky;
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sky.baselineofs = yoff2 == 0x7fffffff ? yoff : yoff2;
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sky.lognumtiles = lognumtiles;
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sky.scale = yscale;
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memset(sky.offsets, 0, sizeof(sky.offsets));
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if (tileofs) memcpy(sky.offsets, tileofs, 2 << lognumtiles);
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addSky(sky, texid);
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}
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