public Builder clearHatchery() {
        if (hatcheryBuilder_ == null) {
          hatchery_ = org.bwapi.proxy.messages.GameMessages.UnitId.getDefaultInstance();
          onChanged();
        } else {
          hatcheryBuilder_.clear();
        }
        bitField3_ = (bitField3_ & ~0x00000080);
        return this;
      }