On Fri, 30 Jun 2006, Robin van Steenbergen wrote:

>> Main thing is that I can't find the documentation for the protocol used
>> by FlightGear for data I/O.

There are several protocols. In fact, infinitely many. ;)
You can define your own protocols with --generic (binary or text strings)

(And thus saving bandwidth by sending only the data you need for your
application.)

Docs/README.IO  and (for the generic interface) Protocols/ where there is a
README and some examples.

>> Note that everything is connected through a LAN and the ideal case
>> would be to use a multicast to connect some systems together, but
>> I'm still unsure whether that's possible. The packet format used by
>> FlightGear is the main concern right now.

...you don't actally need to complexityficationalise things with multicast
if the hosts are on the same network segment. A simple UDP-broadcast should
do the same thing there, unless you have fancy multicast-aware switches in
the lab and need to really push the network to its limits. But it seems
noone has added (nudge-nudge wink-wink, Robin ;) an option for setting the
broadcast option on sockets.  (except for --multiplay) This ought to be an
option for all udp protocols in FG imho. Well, at least for the --generic.
(set via a simple plib call in the right spot)

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