message: Remove unnecessary conversion between int and float
  Dividing `size.y / 2.0f` converts from `int` to `float`, only to be
  casted back to `int`. Simply doing the division with integers would have
  the same effect, and better efficiency.
diff: @@ -196,7 +196,7 @@ void MapViewState::setupUiPositions(NAS2D::Vector<int> size)
  mAnnouncement.position(centerWindowWidth(mAnnouncement.width()), centerWindowHeight(mAnnouncement.height()) - 100.0f);
  mGameOptionsDialog.position(centerWindowWidth(mGameOptionsDialog.width()), centerWindowHeight(mGameOptionsDialog.height()) - 100.0f);
  - mDiggerDirection.position(centerWindowWidth(mDiggerDirection.width()), static_cast<int>(size.y / 2.0f) - 125.0f);
  + mDiggerDirection.position(centerWindowWidth(mDiggerDirection.width()), size.y / 2 - 125.0f);
  mWarehouseInspector.position(centerWindowWidth(mWarehouseInspector.width()), centerWindowHeight(mWarehouseInspector.height()) - 100.0f);
  mMineOperationsWindow.position(centerWindowWidth(mMineOperationsWindow.width()), centerWindowHeight(mMineOperationsWindow.height()) - 100.0f);
  