private void UpdateBoardMask()
{
if (HiddenModel)
{
var visiblePoints = pieceBoard.GetVisiblePoints(MyColor);
var relativeVisiblePoints = new HashSet <PiecePoint>();
foreach (var point in visiblePoints)
{
var relativePoint = MyColor == PieceColor.Red ? point : point.SymmetryPoint;
relativeVisiblePoints.Add(relativePoint);
}
boardMask.VisiblePoints = relativeVisiblePoints;
}
}