message: Use reference syntax for `mineFacility`
diff: @@ -230,10 +230,10 @@ void MapViewState::onMinerTaskComplete(Robot* robot)
  auto& robotTile = *mRobotList[robot];
  // Surface structure
  - MineFacility* mineFacility = new MineFacility(robotTile.mine());
  - mineFacility->maxDepth(mTileMap->maxDepth());
  - NAS2D::Utility<StructureManager>::get().addStructure(*mineFacility, robotTile);
  - mineFacility->extensionComplete().connect(this, &MapViewState::onMineFacilityExtend);
  + auto& mineFacility = *new MineFacility(robotTile.mine());
  + mineFacility.maxDepth(mTileMap->maxDepth());
  + NAS2D::Utility<StructureManager>::get().addStructure(mineFacility, robotTile);
  + mineFacility.extensionComplete().connect(this, &MapViewState::onMineFacilityExtend);
  // Tile immediately underneath facility.
  auto& tileBelow = mTileMap->getTile({robotTile.xy(), robotTile.depth() + 1});
  