Method nextStarterWorld

source/game/StarUniverseServer.cpp:1310–1392

}

Maybe<CelestialCoordinate> UniverseServer::nextStarterWorld() {
  RecursiveMutexLocker locker(m_mainLock);

  auto assets = Root::singleton().assets();
  String defaultWorldCoordinate = assets->json("/universe_server.config:defaultWorldCoordinate").toString();
  if (!defaultWorldCoordinate.empty())
    return CelestialCoordinate(defaultWorldCoordinate);

  if (m_nextRandomizedStarterWorld && m_nextRandomizedStarterWorld->done()) {
    CelestialCoordinate nextWorld = m_nextRandomizedStarterWorld->get();
    m_nextRandomizedStarterWorld.reset();
    return nextWorld;
  }

  if (!m_nextRandomizedStarterWorld) {
    m_nextRandomizedStarterWorld = m_workerPool.addProducer<CelestialCoordinate>([assets, celestialDatabase = m_celestialDatabase]() {
        Logger::info("Searching for new randomized starter world");
        auto filterWorld = [celestialDatabase](CelestialCoordinate const& coordinate, Json const& filter) {
          auto parameters = celestialDatabase->parameters(coordinate);
          auto visitableParameters = parameters->visitableParameters();
          if (!visitableParameters)
            return false;

          if (auto biome = filter.optString("terrestrialBiome")) {
            auto terrestrialParameters = as<TerrestrialWorldParameters>(visitableParameters);
            if (!terrestrialParameters || *biome != terrestrialParameters->primaryBiome)
              return false;
          }

          if (auto size = filter.optString("terrestrialSize")) {
            auto terrestrialParameters = as<TerrestrialWorldParameters>(visitableParameters);
            if (!terrestrialParameters || *size != terrestrialParameters->sizeName)
              return false;
          }

          if (auto dungeon = filter.optString("floatingDungeon")) {
            auto dungeonParameters = as<FloatingDungeonWorldParameters>(visitableParameters);
            if (!dungeonParameters || *dungeon != dungeonParameters->primaryDungeon)
              return false;
          }

          return true;
        };

        auto findParameters = assets->json("/universe_server.config:findStarterWorldParameters");
        auto randomWorld = celestialDatabase->findRandomWorld(findParameters.getUInt("tries"), findParameters.getUInt("range"), [&](CelestialCoordinate const& coordinate) {
            if (!filterWorld(coordinate, findParameters.get("starterWorld")))
              return false;

            List<CelestialCoordinate> allChildren;
            for (auto const& planet : celestialDatabase->children(coordinate.system())) {
              allChildren.append(planet);
              for (auto const& satellite : celestialDatabase->children(planet))
                allChildren.append(satellite);
            }

            for (auto const& requiredSystemWorld : findParameters.getArray("requiredSystemWorlds", {})) {
              bool worldFound = false;