public void Undo(IBoard board, IHistoryItem toUndo, IHistoryItem lastMoveBeforeUndo)
{
var minBoard = board.ToMinified();
var minToUndo = new HistoryItemMinified();
minToUndo.Minify(toUndo, board);
HistoryItemMinified minLastMove = null;
if (lastMoveBeforeUndo != null)
{
minLastMove = new HistoryItemMinified();
minLastMove.Minify(lastMoveBeforeUndo, board);
}
minBoard = ChainOfRules.UndoRule(minBoard, minToUndo, minLastMove);
minBoard.ToMaximized(board);
}
internal BoardMinified FastForwardUndoMove(BoardMinified board, HistoryItemMinified move,
HistoryItemMinified undoMove)
{
return(FastForwardUndoMoveRules.UndoRule(board, move, undoMove));
}