Mathias Fröhlich wrote: >What is missing is a clear architecture indenpendent definition of the storage >layout.... >Also a 'protocol version' field in the message header will be a good idea IMO. >That way clients could distinguish if and how they should look at that binary >chunk. > > The version field is a good idea. And I have another suggestion. There should be a "info" packet, containing details of the client. I'm not sure what information should be sent to call the packet "complete", but I have some ideas of what should be included anyway:
1) The aircraft (name) a client is using (it isn't nessecary to send this information with every packet) 2) A "visibility" range (Vivian called it "Radar Echoing Area"), provided by aircraft model data. That way a eg. 747 can show up on radar earlier than a cessna, making radar more real. 3) A radio transmission range, i.e. the range a client is able to reach via radio when sending (voice) messages 4) A radio receive range, i.e. the range a client is able to receive messages from. This may also be aircraft specific, not sure about that. 5) the frequency a client is listening to (erm, there are two listening frequencies, right?) 6) the sending frequency of a client There is probably more information needed. However, the network protocol has to make sure that this information is received by others, that means there should be some confirmation mechanism on received packets, at least for these info packets. My suggestion for this is: 1) The info packet contains random "packet number" 2) The sender resends the packet until it receives an "acknoledge"-packet from the receiver (another client or fg_server), containing only the "packet number" and a string "ackloledged". An info packet must be sent if any information is changed, e.g. a client switches frequencies or whatever. Opinions? Oliver _______________________________________________ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
