private Position RollBack()
{
Position CurP = _Stack.Pop();
Position BackP = _Stack.First();
_ChessBoard.Board[CurP.xPos, CurP.yPos].value = 0;
_ChessBoard.CalculateLockProbability(CurP);
_ChessBoard.CalculateLockProbability(BackP);
if (!chkGraphic.Checked)
{
foreach (Control ctrl in pnlChess.Controls)
{
{
if (ctrl.Name == "button" + (((CurP.yPos) * 8) + CurP.xPos + 1).ToString())
{
this.Invoke(new MethodInvoker(delegate
{
ctrl.Text = _ChessBoard.Board[CurP.xPos, CurP.yPos].Rank.ToString();
//ctrl.BackgroundImage = Properties.Resources.knight002;
ctrl.BackColor = SystemColors.Control;
}));
}
}
}
}
return(BackP);
}
