Re: deleting items from 2d arrays

[Sergey Gromov]

Thu, 13 Aug 2009 22:59:37 -0400, Michael P. wrote:

> foreach( Block[] ba; level )
> {
>       foreach( Block b; ba )
>       {
>               if( checkCollision( ball, b.p ) )
>               {
>                       //remove the block??
>               }
>       }
> }

I like Daniel's answer better.  But if order matters you could do this:

for( int i = 0; i < level.length; )
{
        for( int j = 0; j < level[ i ].length; )
        {
                if( checkCollision( ball, level[ i ][ j ].p ) )
                {
                        level[ i ] = level[ i ][ 0 .. j ] ~ level[ i ][ j+1 .. 
$ ];
                }
                else
                {
                        j++;
                }
        }
        if( level[ i ].length == 0 )
        {
                level = level[ 0 .. i ] ~ level[ i+1 .. $ ];
        }
        else
        {
                i++;
        }
}