Date sent:        Fri, 28 May 1999 21:08:13 +0000 (GMT)
From:             Bassoukos Tassos <abas@lhtee11.meng.auth.gr>
To:               pingus-devel@lists.deus.net
Subject:          Re: Pingus Network Design
Forwarded by:     pingus-devel@lists.deus.net
Send reply to:    pingus-devel@lists.deus.net
Date forwarded:   Fri, 28 May 1999 22:15:10 +0100



On 28 May 1999, Ingo Ruhnke wrote:

> Hi, 
> 
> I have thought a bit about reorganising pingus, so that it is easier
> to add later network support.
> 
> There are now two new main objects in pingus:
> 
> AbstractServer and Client
> 
> The AbstractServer holds now the World object, so that the Client
> becomes indepented of it. The Client gets initialised with a pointer
> to a AbstractServer, add the moment it gets initialisied with a
> TrueServer object, which controlls the world for non network play. For 
> network play it should get initialisied with an VirtualServer, which
> then connects to a TrueServer, which is the master of all the other
> Server. 
> 
> BTW: I haven't much experience with network programming, this is my
>      first try, so comments and critic is very welcome.
> 
> Bye
> 
>   Ingo

(ps: this is my first post on the list, so please be gentle :)

Hi Ingo,
>from what i understood, you talk about going from something like this:

             +-------+
             | World |
             +-------+
             //     \\
            //       \\
     +--------+    +--------+
     | Client |----| Server |
     +--------+    +--------+


to something like this:


             +-------+
             | World |
             +-------+
             //     \\
            //       \\
     +--------+    +------------+
     | Client |----|VirualServer|
     +--------+    +------------+
                         |
                       / | \    (client-side)
------ Network -------<  |  >----------
                       \ | /    (server-side)
                         |
    +--------+    +-------------+
    | Server |----|VirtualClient|
    +--------+    +-------------+
            \\      //
             \\    //
             +-------+
             | World |
             +-------+

(double lines indicate lots more data exchanged than single lines)
(this is not a class inheritance diagramm, rather somthing more towards
dataflow - Server and VirualServer have a common ancestor, so do Client
and VirtualClient)

VirtualClient and VirtualServer are stub classes that synchronize the
World objects in the server and the client correspondigly(sp?)[0].

Did I get everyhing right? Did I get everything wrong?

Tassos
[0] yes, this may sound at first sight reversed ...
--
Bassoukos Tassos   +30 31 996011 / +30 93 7109954
 Computer Shaman and Informatics Thaumaturge