static void Down(object obj)
 {
     if (field.TestBottoming(FiguresArray[FigureNumber]))
     {
         field.FillFieldWithBlocks(FiguresArray[FigureNumber]);
         field.ClearLine();
         ResetFigures();
         FigureNumber = rnd.Next(0, FiguresArray.Length);
         field.PasteFigureInField(FiguresArray[FigureNumber]);
     }
     else
     {
         field.DeleteFigureFromField(FiguresArray[FigureNumber]);
         FiguresArray[FigureNumber].Down();
         field.PasteFigureInField(FiguresArray[FigureNumber]);
     }
 }