Frederic Bouvier wrote: > And what happens with deltas and positions when you will lose UDP > packets ? How will you restore the correct position or orientation ? > Perhaps, from time to time, it will be good to send absolute positions > to resynch.
Yes, this is a requirement. Sending unreliable deltas requires that there be a reliable transport for the value that the deltas are computed from. That was the idea behind the "zone" suggestion I made. The "zone coordinate change" packet would be sent rarely, and would require and ACK from the client and retransmition on failure. Blindly relying on the packets to arrive correctly and in-order is not an option*. Andy * Except on a local network. On a single physical network, the ethernet standards handle retransmission on collision for you, so packet loss at the IP level can be ignored. I'm not sure if this is true for ethernet derivatives like WiFi, though. -- Andrew J. Ross NextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com "Men go crazy in conflagrations. They only get better one by one." - Sting (misquoted) _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
