public Builder addStartLocations(
          int index, org.bwapi.proxy.messages.BasicTypes.TilePosition value) {
        if (startLocationsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureStartLocationsIsMutable();
          startLocations_.add(index, value);
          onChanged();
        } else {
          startLocationsBuilder_.addMessage(index, value);
        }
        return this;
      }