MingStar.SimUniversity.Game.Game.UndoMove C# (CSharp) Method

        public void UndoMove()
        {
            TurnInfo turnInfo = _previousTurnInfo.Pop();
            _allAvailableMoves = turnInfo.AllMoves;
            MostFailedStartUps = turnInfo.MostFailedStartUps;
            LongestInternetLink = turnInfo.MostInternetLinks;
            Hash = turnInfo.Hash;
            if (CurrentPhase == GamePhase.Play)
            {
                CurrentUniversity.ResumeStudents(turnInfo.Move);
            }
            // NB. this has to be in the really end
            turnInfo.Move.Undo(this);
            CurrentUniversity.LengthOfLongestLink = turnInfo.CurrentUnversityLongestLink;
        }