public Builder setTargetPosition(
          org.bwapi.proxy.messages.BasicTypes.Position.Builder builderForValue) {
        if (targetPositionBuilder_ == null) {
          targetPosition_ = builderForValue.build();
          onChanged();
        } else {
          targetPositionBuilder_.setMessage(builderForValue.build());
        }
        bitField1_ |= 0x00000002;
        return this;
      }