Lists

One of the things SMAUG has done, is most structs are in a doubly linked list. So you can traverse lists with ease. For example if you wanted to send to every character (mobs included) some text, you would have a loop like this:

for(rch = first_char; rch; rch = rch->next)

ch_printf(ch, “%s\n\r”, txt_pointer);

You could also traverse through all the areas in the game:

for(area = first_area; area; area = area->next);

The same holds true of just about anything that comes in stock SMAUG. Now if you want to display a message to all the characters, you could use the code above and add if(IS_NPC(rch)) continue; but a more practical, faster, way of doing that, is going through the descriptors.

DESCRIPTOR_DATA *d;

for(d=first_descriptor; d; d= d->next) {

if(!CH(d)) continue;

send_to_ch_printf(CH(d), “%s\n\r”. argument) ;

}

The CH is just a define that points to d->character or d->original.