public Builder mergeRallyPosition(org.bwapi.proxy.messages.BasicTypes.Position value) {
        if (rallyPositionBuilder_ == null) {
          if (((bitField1_ & 0x00080000) == 0x00080000) &&
              rallyPosition_ != org.bwapi.proxy.messages.BasicTypes.Position.getDefaultInstance()) {
            rallyPosition_ =
              org.bwapi.proxy.messages.BasicTypes.Position.newBuilder(rallyPosition_).mergeFrom(value).buildPartial();
          } else {
            rallyPosition_ = value;
          }
          onChanged();
        } else {
          rallyPositionBuilder_.mergeFrom(value);
        }
        bitField1_ |= 0x00080000;
        return this;
      }