“Código Java 2048” Código de respuesta

Código Java 2048

private void verticalMove( int row, int col, String direction )
    {
        Tile initial = board[border][col];
        Tile compare = board[row][col];
        if ( initial.getValue() == 0 || initial.getValue() == compare.getValue() )
        {
            if ( row > border || ( direction.equals( "down" ) && ( row < border ) ) )
            {
                int addScore = initial.getValue() + compare.getValue();
                if ( initial.getValue() != 0 )
                {
                    score += addScore;
                }
                initial.setValue( addScore );
                compare.setValue( 0 );
            }
        }
        else
        {
            if ( direction.equals( "down" ) )
            {
                border--;
            }
            else
            {
                border++;
            }
            verticalMove( row, col, direction );
        }
    }