Method AddLocalizedVariants

source/common/textures/texturemanager.cpp:1110–1179

//==========================================================================

void FTextureManager::AddLocalizedVariants()
{
	std::vector<FolderEntry> content;
	fileSystem.GetFilesInFolder("localized/textures/", content, false);
	for (auto &entry : content)
	{
		FString name = entry.name;
		auto tokens = name.Split(".", FString::TOK_SKIPEMPTY);
		if (tokens.Size() == 2)
		{
			auto ext = tokens[1];
			// Do not interpret common extensions for images as language IDs.
			if (ext.CompareNoCase("png") == 0 || ext.CompareNoCase("jpg") == 0 || ext.CompareNoCase("gfx") == 0 || ext.CompareNoCase("tga") == 0 || ext.CompareNoCase("lmp") == 0)
			{
				Printf("%s contains no language IDs and will be ignored\n", entry.name);
				continue;
			}
		}
		if (tokens.Size() >= 2)
		{
			FString base = ExtractFileBase(tokens[0].GetChars());
			FTextureID origTex = CheckForTexture(base.GetChars(), ETextureType::MiscPatch);
			if (origTex.isValid())
			{
				FTextureID tex = CheckForTexture(entry.name, ETextureType::MiscPatch);
				if (tex.isValid())
				{
					auto otex = GetGameTexture(origTex);
					auto ntex = GetGameTexture(tex);
					if (otex->GetDisplayWidth() != ntex->GetDisplayWidth() || otex->GetDisplayHeight() != ntex->GetDisplayHeight())
					{
						Printf("Localized texture %s must be the same size as the one it replaces\n", entry.name);
					}
					else
					{
						tokens[1].ToLower();
						auto langids = tokens[1].Split("-", FString::TOK_SKIPEMPTY);
						for (auto &lang : langids)
						{
							if (lang.Len() == 2 || lang.Len() == 3)
							{
								uint32_t langid = MAKE_ID(lang[0], lang[1], lang[2], 0);
								uint64_t comboid = (uint64_t(langid) << 32) | origTex.GetIndex();
								LocalizedTextures.Insert(comboid, tex.GetIndex());
								Textures[origTex.GetIndex()].Flags |= TEXFLAG_HASLOCALIZATION;
							}
							else
							{
								Printf("Invalid language ID in texture %s\n", entry.name);
							}
						}
					}
				}
				else
				{
					Printf("%s is not a texture\n", entry.name);
				}
			}