public void OnBlockCellChanged(PacketHeader header, Connection connection, NetworkCell cell)
        {
            Console.WriteLine("JUST RECEIVED NEW CELL!!!");

            Cell newCell = cell.ToCell();

            Block.PlaceBlock(newCell, newCell.block);
        }
        public void ChangeCell(Cell blockCell, CellChangeType change)
        {
            NetworkCell newCell = blockCell.ToNetworkCell();

            switch (change)
            {
            case CellChangeType.RemoveBlock:
                newCell.block = null;
                break;

            case CellChangeType.PlaceBlock:
                blockCells.Add(blockCell);     // ?????
                break;
            }
            serverConnection.SendObject("CellChanged", newCell);
        }