Yes, there is the template which describes the UDP packages pretty nicely. As suggested, one way to start looking at the messages is from the Opensim server side code that handles them. A place to start that is: OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
In viewgit: http://opensimulator.org/viewgit/?a=viewblob&p=opensim&h=b61bdeb647dfe79c7f00bd631f84d5c9ee9644bc&hb=b2810c4ca718663f2bbc8c86646444d698873352&f=OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs We implemented a new protocol in realXtend Tundra - first wrote a client side implementation of LLUDP, but then switched to a new protocol. However that protocol was never added to Opensimulator (would have been possible though), but we just started using the same codebase that first made for the client as the server as well. Needed extensibility more than SL compatibility. -Toni On Thu, Jan 17, 2019 at 11:05 PM Ethan Gardener <eeke...@fastmail.fm> wrote: > > On Thu, Jan 17, 2019, at 7:40 PM, Adam Frisby wrote: > > The first was the packet acknowledgement system, it relies on a lot of > > arcane timing for it to work correctly, > > I think this explains well over half the bugs I've ever seen in Second Life, > OpenSim, and InWorldz altogether! I always knew there was some > timing-related nonsense where there shouldn't be. ... "Nonsense" is me being > polite; there's so much broken behaviour which so obviously depends on crazy > timing when there is no need for crazy timing that it makes me angry! > > > That said, if you're really serious about redeveloping the protocol - > > tweaking this one is not a good idea. There's a lot of good free options > > - RakNet is now free and open source, for example, and is behind a *lot* > > of games and MMOs. > > I'd *love* a viewer for OpenSim with a completely new protocol. I've been > sure it would be a good idea for... oh... 10-12 years, but my health has > never been good enough to start. My health has recently improved, but I'm > only now at the point where I can start learning, so I've got nothing of > value to offer yet. > > > Netcode is hard. Flee in terror. > > All code is hard, :) but yeah, networking programming is one of the (many) > things which requires whole new ways of thinking. > > I recently learned of Spin and its language, Promela. "Spin is a tool for > analyzing the logical consistency of concurrent systems, specifically of data > communication protocols." More info here: > http://spinroot.com/spin/Man/Manual.html > Home page: > http://spinroot.com/spin/whatispin.html > I'd use it if I was working on something as big as virtual world > client-server protocol. > _______________________________________________ > Opensim-users mailing list > Opensim-users@opensimulator.org > http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-users _______________________________________________ Opensim-users mailing list Opensim-users@opensimulator.org http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-users
