Package spec Rooms

with Things, Directions;
use  Things, Directions;

package Rooms is
 type Room     is new Thing with private;
 type Room_Access       is access all Room'Class;

 procedure Put_View(T : access Room; Agent : access Thing'Class);

 procedure Connect(Source : access Room; Dir : in Direction; 
                   Destination : access Thing'Class;
                   Bidirectional : in Boolean := True);
  -- Create a connection from Source to Destination in Direction Dir.
  -- If it's bidirectional, create another connection the reverse way.

 procedure Disconnect(Source : access Room; Dir : in Direction; 
                      Bidirectional : in Boolean := True);
 -- Reverse of connect; disconnects an existing connection, if any.

 function What_Is(From : access Room; Dir : in Direction) return Thing_Access;
 -- Returns what is at direction "Dir" from "From".
 -- Returns null if nothing connected in that direction.

private

 type Destination_Array is array(Direction) of Thing_Access;

 type Room     is new Thing with
  record
    Destinations : Destination_Array;
  end record;

end Rooms;

You may also see the corresponding body. The following compilation units refer to ("with") Package spec Rooms:

The following compilation units are referred to ("with"'ed) by Package spec Rooms: You may return to the Program Small Home Page

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