public override bool Equals(object obj)
        {
            if (obj == null && GetType() != obj.GetType())
            {
                return(false);
            }

            ConnectFourPiece piece = ( ConnectFourPiece )obj;

            return(this == piece);
        }
 public ConnectFourPiece(ConnectFourPiece piece) : base(piece)
 {
     IsPieceRed = false;
 }
 public void AddGamePiece(ConnectFourPiece piece)
 {
     GamePieces.Add(piece);
 }