public Builder setPosition(
          org.bwapi.proxy.messages.BasicTypes.Position.Builder builderForValue) {
        if (positionBuilder_ == null) {
          position_ = builderForValue.build();
          onChanged();
        } else {
          positionBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x02000000;
        return this;
      }