Please Help ! Out of the Blue Map DESYNCS ?!

[marvey323]

up until yesterday everything was running fine suddenly there are player desyncs the past 5 games I have been hosting with my map.

- I have not declared any getLocal() functions which I know may cause desyncs

I dont know what can be the problem ? seriously it's at the point where it seems hopeless because the map content is so much (models, triggers) that its impossible to pinpoint the problem and I feel like this is the end of mapmaking for me.

 

[DysfunctionaI]

Firstly, models won't cause a desync. You're just going to be looking at triggers.

Did you use any GetLocalPlayer() calls at all? I'm just asking because you said "which I know may cause desyncs ".

There's also a bunch of BJ's that use GetLocalPlayer(), and a few that should never be used, like a camera one or somethin. I can't remember the important ones, maybe someone else will post them.

Last thing I can say is, if you have multiple replays of people with a desync, you could save yourself a LOT of time by finding patterns in when they desync. Also, if you have a replay of YOU desync'ing, you could use something like Dota Replay Manager to check your very last actions before the desync happened. It should be within the same second at the desync.

 

[marvey323]

Wc3 doesnt auto-save games you play right? I have to initiate a replay save? This issue is killling me ! it happens within 5 min of playing sometimes, and other times it wont happen until after 30 minutes or more.

 

[DysfunctionaI]

From the main menu:

Options -> Gameplay -> Automatically Save Replays

You'll also get help faster if you post up your map so people can look at the triggers.

 

[marvey323]

I doubt anyone wants to look at my map which has over 100 triggers right now... there is literally no GetLocalPlayer() being called, or the other desync-prone function which I forgot the name of at this moment..

 

[Dr Super Good]

If they desynchronize at start, chances are they have played a session of a different map that was wigitized before the current session. As wigitizer damages object editor data until WC3 is restarted it causes them to desynchronize as objects on their client interact differently.

 

[marvey323]

its never at the very start, its always within a few minutes into the game.. and I have noticed that it is happening if many spells are cast?

 

[marvey323]

Here is the Replay, the desync happens just before 7:45 or near there.. check the middle map area !

https://drive.google.com/file/d/0B4u1AUsOUj89WUVYU0RWRDBRUWs/edit?usp=sharing

It seems that its 2 massive aoe spells colliding or something?

 

[DysfunctionaI]

Still need the map. How are we supposed to find the desync without it? It sounds like your triggered spells are a good place to start looking.

 

[Daffa]

Do you by any chance use

• Camera - Pan Camera As Necessary

or SmartCameraPanBJ?

 

[Dr Super Good]

Desynchronizations are often caused by anything that generates terrain deformations. Even standard WC3 abilities of Shockwave and War Stomp will cause a split between Windows and Mac clients or even clients with different in-game visual settings. Especially if any system used GetLocationZ since those values will be highly dependant on the deformation results (which are not deterministic in the cases mentioned above). Trigger generated deformations are by far the worse cause of this sort of desynchronization, although default abilities are not to be under-estimated.

GetLocationZ will also cause a desynchronization if performed on a walkable animated destructible and used to do something that alters game state. This is because the animation of the destructible is not deterministic and will produce different height measurements between clients depending on what they are viewing.