From the NannyMUD documentation

LAST CHANGE

2001-01-13

NAME

        area_d - Keep track of open and closed areas.

FUNCTIONS

QUERY FUNCTIONS

	query_closed
	query_open

DESCRIPTION

	This daemon keeps track on what areas are closed in NannyMUD. If you
	have connections to other areas, you should check with the area_d
	before you add exits to that area. Likewise, check with the area_d if
	you consider cloning objects from other areas (and you should have the
	expressed approval of the creator before doing so).

NOTE

	Really only keeps a list of closed areas, but should perhaps hold a 
	list of open areas, too. However it wasn't designed that way.

EXAMPLE

	Here is a piece of code that uses the area_d to see if it is ok to add
	an exit to another area. The example takes for granted the use of a
	room object from the /std/ lib :

	if ("obj/daemon/area_d" -> query_open("players/brom/public"))
	  add_exit("out", "/players/brom/public/r7");

FUNCTION

NAME
        query_closed - Query if area is closed


SYNTAX
int query_closed(string area)

DESCRIPTION
	  Returns 1 if the area is marked as closed.


EXAMPLE
        query_closed("players/brom/")
          will return 1 if Brom's area is marked as closed.




FUNCTION

NAME
        query_open - Query if area is open


SYNTAX
int query_open(string area)

DESCRIPTION
	  Returns 1 if the area isn't marked as closed.
	  This is really a logical not of query_closed().


EXAMPLE
	query_open("players/brom/")
	  will return 1 if Brom's area is NOT marked as closed.