private void BoardView_AskForUndo(object sender, EventArgs e)
{
if (PlayerToMove.IsThinking)
{
return;
}
if (GamePosition.GameFinished)
{
return;
}
int HowManyHalfMoves = (PlayerWaiting is EnginePlayer) ? 2 : 1;
for (int i = 0; i < HowManyHalfMoves; i++)
{
int?MoveToUndo = GamePosition.LastMove;
if (MoveToUndo == null)
{
//No moves handler
return;
}
GamePosition.UnMake();
BoardView.UndoMove((int)MoveToUndo);
}
int WhiteMaterialAdvantage = CountMaterial();
BoardView.SetMaterial(WhiteMaterialAdvantage, -WhiteMaterialAdvantage);
}
