Method SpriteFont

src/Abyss/UI/SpriteFont.h:62–101

  public:
    explicit SpriteFont(const std::string_view path, const DataTypes::Palette &palette) : _drawable(absl::StrCat(path, ".dc6")) {
        Abyss::Common::Log::debug("Loading font {}...", path);

        _drawable.setPalette(palette);

        auto tableStream = Singletons::getFileProvider().loadFile(absl::StrCat(path, ".tbl"));
        Streams::StreamReader sr(tableStream);
        char signature[5] = {};
        sr.readBytes(signature);
        if (std::string_view(signature, 5) != "Woo!\x01")
            throw std::runtime_error(absl::StrCat("Invalid font file signature: ", path));

        tableStream.ignore(7); // skip unknown bytes

        while (!tableStream.eof()) {
            const auto code = sr.readUInt16();
            auto &[glyphFrameIndex, glyphWidth, glyphHeight, glyphOffsetX, glyphOffsetY] = _glyphs[code];

            tableStream.ignore(1); // Skip a byte for some reason

            glyphWidth = sr.readUInt8();
            glyphHeight = sr.readUInt8();

            tableStream.ignore(3); // Skip 3 unknown bytes

            glyphFrameIndex = sr.readUInt16();

            if (glyphFrameIndex == 0xFFFF) {
              // FIXME: do something about this.
              glyphFrameIndex = 1;
            }

            if (glyphFrameIndex >= _drawable.getFrameCount())
                throw std::runtime_error(absl::StrCat("Invalid font file: ", path));

            _drawable.getFrameOffset(glyphFrameIndex, glyphOffsetX, glyphOffsetY);

            tableStream.ignore(4); // More magic ignores, fun!
        }
    }
};

} // namespace Abyss::UI