pdachess.Form1.opponentmove C# (CSharp) Method

        private void opponentmove(string [] cmds)
        {
            int chose_x = int.Parse(cmds[1]);
            int chose_y = int.Parse(cmds[2]);
            int dest_x = int.Parse(cmds[3]);
            int dest_y = int.Parse(cmds[4]);
            string promote = (cmds.Length > 5) ? cmds[5] : "";
            tokenChosed = t_map[getIndex(chose_x, chose_y)] as Token;
            //MessageBox.Show(tokenChosed.getType());
            enPassant = null;

            move(t_map,dest_x,dest_y,promote);

            tokenChosed = null;
            possiblemove.Clear();

            drawScreen();
            whosturn = (whosturn == "w") ? "b" : "w";
            label1.Text = (whosturn == "w") ? "White's turn" : "Black's turn";
            if (ischeck(t_map, whosturn))
            {
                if (ismate(whosturn))
                {
                    MessageBox.Show("Checkmate!");
                    lose();
                }
                else
                {
                    MessageBox.Show("Check!");
                }
            }
            else if (ismate(whosturn))
            {
                MessageBox.Show("Stalemate!");
                drawgame();
            }
        }