private void OnFigureChange()
{
currentFigure = FigureFactory.CreateFigure(FigureFactory.NextFigure());
currentFigure.Xindex = Cols / 2 - 1;
currentFigure.Yindex = -2;
nextFigure = FigureFactory.CreateFigure(FigureFactory.PeekNextFigure());
}