Place-RFC
   Metacosm Development Team
   Revision History
   Revision 0.1.1 May, 10th 2001 Revised by: Janselmeer
   Initial release.
   
   This document describes Places.
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License

   Copyright © 2001 Metacosm Development Team
   
     Permission is granted to copy, distribute and/or modify this
     document under the terms of the GNU Free Documentation License,
     Version 1.1 or any later version published by the Free Software
     Foundation; with no Invariant Sections, with no Front-Cover Texts,
     and with no Back-Cover Texts.
     
     The GNU Free Documentation License is available from the FSF
     (http://www.fsf.org) or you can write to the Free Software
     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
     02111-1307, USA.
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Metacosm

   For more information on Metacosm, check our site: Metacosm.
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Definition

   Place
          The sum of Places in a world defines its geographical space.
          The Place is a rule independent concept, that is it may be as
          well a 2D space, a 3D space or a MUD room.
          
          A Place is an Entity which contains others Entities. Each
          entity in a Place is located by coordinates.
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Relations between Places

   Being an Entity, a Place may be contained in another Place. This is a
   current situation in the real world. For instance a city contains a
   lot of houses each of one being a Place. If P1 contains P2, each
   Entity contained in P2 is contained in P1 by transitity. By this mean,
   it is possible to create a Place that contains all Places (i.e. all
   Entities) in a World. We call such a Place a Root-Place
   
   Places may be contiguous too. There are for example rooms in a house.
   
   But a Place can never intersect another one. This is an implementation
   issue: an Entity can never be in several Places at the same time.
   
Glossary

   Root-Place
          A Root-Place is a Place that is not contained by any other
          Place.
          
          See Also: Place.