message: Use higher level check for Command Center placement
diff: @@ -1345,7 +1345,7 @@ void MapViewState::setStructureID(StructureID type, InsertMode mode)
  */
  void MapViewState::checkConnectedness()
  {
  - if (ccLocationX() == 0 && ccLocationY() == 0)
  + if (ccLocation() == NAS2D::Point{0, 0})
  {
  return;
  }
  