FILE
	/usr/common/sys/mapd.c

NAME
	add_room_to_zone - add a room to a zone and assign it a number

PROTOTYPE
	void add_room_to_zone(object room, int num, int req_zone)

CALLED BY
	System, Common, Game

DESCRIPTION
	Add a registered room to a zone, or autoassign a zone.  Give
	the room the specified number, or autoassign a number.  If num
	or req_zone is -1, the value is autoassigned, otherwise the number
	specified is used.

	The room's number will be set with set_number().

RETURN VALUE
	None.

ERRORS
	If an unregistered room is given, or num or req_zone cannot be used
	as specified, an error occurs.

SEE ALSO
	add_room_object, get_room_by_num