/**
     * Calculates and makes a move on the board.
     *
     * @param row  is the Yth position of the board.
     * @param col  is the Xth position of the board.
     * @param team is either the human or the computer. It determines which tile
     *             will be set on the board.
     * @return The manipulated board is returned if a move has been made or null
     *         if not.
     * @see Direction
     */
    public GameBoard moveHelp(int row, int col, Player team) {
        GameBoard changedBoard = this.clone();
        Player ownTileState;
        Player enemyTileState;

        // determine which player is moving
        if (team == Player.HUMAN) {
            enemyTileState = Player.COM;
            ownTileState = Player.HUMAN;
        } else {
            enemyTileState = Player.HUMAN;
            ownTileState = Player.COM;
        }

        if (board[row][col] != Player.EMPTY)
            return null;

        // perform the move
        for (Direction dir : Direction.values()) {
            int i = 1;
            int rowDir = row + i * dir.getRow();
            int colDir = col + i * dir.getCol();

            while (isWithinBoard(rowDir, colDir)) {
                Player boardState = board[rowDir][colDir];
                Player previousBoardState = board[rowDir - dir.getRow()][colDir
                        - dir.getCol()];

                if ((boardState == Player.EMPTY)) {
                    break;
                } else if ((boardState == enemyTileState)
                        && (previousBoardState == ownTileState)) {
                    break;
                } else if ((boardState == ownTileState)
                        && (previousBoardState == enemyTileState)) {
                    while (i >= 0) {
                        rowDir = row + i * dir.getRow();
                        colDir = col + i * dir.getCol();
                        changedBoard.board[rowDir][colDir] = ownTileState;
                        i--;
                    }
                    break;
                }
                i++;
                rowDir = row + i * dir.getRow();
                colDir = col + i * dir.getCol();
            }
        }
        // Return null if no move operation has been made.
        if (this.equals(changedBoard)) {
            return null;
        }
        return changedBoard;
    }