Function read_int

launcher/minecraft/World.cpp:448–472

}

optional<int> read_int (nbt::value& parent, const char * name)
{
    try
    {
        auto &namedValue = parent.at(name);
        if(namedValue.get_type() != nbt::tag_type::Int)
        {
            return nullopt;
        }
        auto & tag_str = namedValue.as<nbt::tag_int>();
        return tag_str.get();
    }
    catch (const std::out_of_range &e)
    {
        // fallback for old world formats
        qWarning() << "Int NBT tag" << name << "could not be found.";
        return nullopt;
    }
    catch (const std::bad_cast &e)
    {
        // type mismatch
        qWarning() << "NBT tag" << name << "could not be converted to int.";
        return nullopt;
    }
}

GameType read_gametype(nbt::value& parent, const char * name) {
    return GameType(read_int(parent, name));