Re: [Flightgear-devel] [RFC][patch] Multiplayer bandwidth savings

2008-07-16 Thread Anders Gidenstam
On Tue, 15 Jul 2008, Stuart Buchanan wrote: > Obviously message loss is a concern for both the full-state message as > well as the change messages. > > Does anyone know much about UDP packet loss scenarios? I know that it > isn't a reliable protocol, but I don't know whether typically a > propo

Re: [Flightgear-devel] [RFC][patch] Multiplayer bandwidth savings

2008-07-16 Thread Vivian Meazza
Anders Gidenstam wrote > I have in previous (last winter IIRC) discussions on #flightgear claimed > that modifying the MP protocol to only send MP properties that have > changed would be problematic and break backwards compatibility. > > I was wrong. > > It is in fact easy to implement and is ne

Re: [Flightgear-devel] [RFC][patch] Multiplayer bandwidth savings

2008-07-15 Thread Stuart Buchanan
--- On Tue, 15/7/08, Anders Gidenstam wrote: > The idea is simple: > 1. Only include properties that have changed since the last > packet was sent. > 2. To cope with thee potential for message loss include the > changed property in the next 4 packets too. > 3. To ensure that newcomers have the ful

[Flightgear-devel] [RFC][patch] Multiplayer bandwidth savings

2008-07-15 Thread Anders Gidenstam
Hi all, I have in previous (last winter IIRC) discussions on #flightgear claimed that modifying the MP protocol to only send MP properties that have changed would be problematic and break backwards compatibility. I was wrong. It is in fact easy to implement and is nearly 100% backwards compat