replay desyncs

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replay desyncs

Postby rootbeer23 » 31 May 2012, 23:09

Hi.

Can someone explain to me how a replay can desync where the actual live game did not. Is there a way to mitigate
this? I heard ppl advice to quit a game via the score screen as opposed to just quitting to windows.
How about only quitting while the game is paused?
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Re: replay desyncs

Postby Raging_Squirrel » 01 Jun 2012, 05:08

you should not quit until the game is finished, because quits do ruin replays
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Re: replay desyncs

Postby -_V_- » 01 Jun 2012, 05:29

OK that is way too much to ask from people
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Re: replay desyncs

Postby rootbeer23 » 01 Jun 2012, 06:01

Raging_Squirrel wrote:you should not quit until the game is finished, because quits do ruin replays

any idea why that is the case?
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Re: replay desyncs

Postby TA4Life » 01 Jun 2012, 06:11

As long as people exit through the score screen everything is fine. On gpgnet I had the desync window removed from the lua.scd file so that this type of desync was never a problem. This is no longer possible since FAF doesn't like people changing the lua.scd. Maybe you can do the same with the new FAF replays, watching them without logging into FAF, but I am not sure if this will work since anytime you open a replay it starts connecting to FAF.
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Re: replay desyncs

Postby Raging_Squirrel » 01 Jun 2012, 08:21

TA4Life wrote:On gpgnet I had the desync window removed from the lua.scd file so that this type of desync was never a problem.

the desync window is never a problem, not the desync itself. game still stays messed up
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Re: replay desyncs

Postby Ze_PilOt » 01 Jun 2012, 09:29

The desync windows is indeed a warning that the game is desync. That mean that with or without it, your game will be totally different that expected.

The replay desync is a engine issue. If you can find the cause, we can maybe avoid it. I have no clue what is causing it exactly and all you can read about it are just wild guesses.

But it has something to do with people leaving, that's sure. The conditions are not.
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Re: replay desyncs

Postby TA4Life » 01 Jun 2012, 09:52

This is not true. Not all desync's that cause the desync window to pop up cause the game to be actually desynced. For example when the desync is with a player who is no longer in the game. There is also empirical evidence for this.
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Re: replay desyncs

Postby Ze_PilOt » 01 Jun 2012, 10:56

It's true when there is only one desync popup. It can't see how a replay can be right if it popup every 5 seconds.

The explanation of this is really well explained in a gamasutra article :

Each tick of the simulation is hashed. That hashed is compared to the replay in the replays/sent by other players.
If two hashes are different, that's mean that the state of the sim if different, and so the game is desync.
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Re: replay desyncs

Postby noobymcnoobcake » 01 Jun 2012, 11:25

need to put a tip saying you need to leave via score screen and cntrl-K your commander when you want to quit. Put tip
in new players topic
viewtopic.php?f=2&t=537
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