#multiplayer | Unreal Source | Page 317

slim holly Mar 29, 2017, 4:49 PM

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I mean it has 100% drop rate

south flare Mar 29, 2017, 4:49 PM

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Whats the netpriority set to? Is the actor relevant at this time?

tranquil yoke Mar 29, 2017, 4:49 PM

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Ok, does reliable also drop or only unreliable?

slim holly Mar 29, 2017, 4:49 PM

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either way I'll just set to reliable, that's least of my worries when the whole project is exploding

south flare Mar 29, 2017, 4:49 PM

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^

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You can always optimize later

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Like I gotta do now

tranquil yoke Mar 29, 2017, 4:49 PM

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You should verify with Wireshark like someone said, to make sure if the package is being sent or not and then see if it's arriving or not

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It could just be a port-forwarding issue if you're not using steam

south flare Mar 29, 2017, 4:50 PM

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Yeah I used wireshark to verify that a whopping 45000 packets were sent because of one replicated array....

tranquil yoke Mar 29, 2017, 4:50 PM

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Alright

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Sounds odd

south flare Mar 29, 2017, 4:51 PM

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Mine was a huge array though

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Lots of data

tranquil yoke Mar 29, 2017, 4:51 PM

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yea I mean, sounds odd it's dropping

south flare Mar 29, 2017, 4:51 PM

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No suprise

tranquil yoke Mar 29, 2017, 4:51 PM

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but yea it coudl be dorpped due to being too large

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that's possible

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Have you tried sending something smaller?

south flare Mar 29, 2017, 4:51 PM

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Mine wasn't dropped that's @slim holly

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Sorry

tranquil yoke Mar 29, 2017, 4:52 PM

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Oh okay

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Ok so I am also having a problem which I've had for quite some time (2-4 weeks), I am in need of some fresh eyes. Is anyone interested in working with me on this problem for a bit? I have a screenshare setup.
I am trying to replicate my (VR) pawn but it is behaving weirdly .. It is .. almost replicating properly.

slim holly Mar 29, 2017, 4:53 PM

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crap

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LogBlueprintUserMessages: [LevelActor_C_0] Server: Worker Queue finished, 3750 added, 0 replaced or rotated, 0 removed
LogBlueprintUserMessages: [LevelActor_C_0] Client 1: Worker Queue finished, 2961 added, 0 replaced or rotated, 0 removed

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so, 800 datas short?

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and these are all reliable, why is there a bunch still missing

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I have a question about VR replication

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what makes it so hard?

tranquil yoke Mar 29, 2017, 4:56 PM

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What about VR replication? My problem is also VR replication-related

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ah

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My problem is hard because - My pawn is complicated. It is computing the body joints based on where the HMD and motion controllers are located. That's what makes it difficult

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I didn't create the pawn, that makes it even more difficult, and the worst part is .. I can't do it either (I mean theoretically I can but it would take too long time)

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I can replicate the movements of the motion controller and all, but it is reconstructing the pawn incorrectly, and I need help to debug this, I'm out of ideas

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😦

slim holly Mar 29, 2017, 5:54 PM

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copy it

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that's one way to get "fresh look"

jolly siren Mar 29, 2017, 6:02 PM

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Does anyone know what these are? For some reason it intermittenly happens to one of my clients when travelling and then they don't get GenericPlayerInitialization called for them and they eventually crash.

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https://hastebin.com/jewivoleyi.md

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LogNetPackageMap:Warning: GetObjectFromNetGUID: Attempt to reassign read-only guid.

jolly siren Mar 29, 2017, 7:23 PM

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@rough iron 😇

rare cloud Mar 29, 2017, 7:32 PM

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I made some new test I absolutely don't know why when I set actor rotation it work sometimes and don't some other

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and I can reproduce this with Third person template

cursive herald Mar 29, 2017, 7:42 PM

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@balmy plaza Ahh I would not use that 10 year old SSL to protect payment info XD

balmy plaza Mar 29, 2017, 7:43 PM

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Of course not 😂

jolly siren Mar 29, 2017, 8:01 PM

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@rough iron why would my level be timing out on a client? 😬

rough iron Mar 29, 2017, 8:16 PM

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Mhhh it's too big and you are loading it in blocking fashion on statup?

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if thats the case you have to stream it in in non blocking fashion

jolly siren Mar 29, 2017, 8:55 PM

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hmm this map that I'm testing isn't that huge

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the umap is under 9 meg

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it only happens sometimes during seamless travel

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triggered from RestartGame

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I feel like I'm missing some tidbit that will allow me to have a seamless travel without dropping anyone

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void AFPSPlayerState::UnregisterPlayerWithSession()
{
    // Don't unregister players who were in the level before seamless travel (i.e. don't unregister players on restartgame)
    if (!bFromPreviousLevel)
    {
        UE_LOG(LogTemp, Warning, TEXT("UnregisterPlayerWithSession"));
        Super::UnregisterPlayerWithSession();
    }
}```

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I just recently added this

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and I feel like I'm missing something else with the session travelling

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I'm now calling StartSession in GenericPlayerInitialization so that it gets started after a travel again (for restartgame)

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But when this GetObjectFromNetGUID: Attempt to reassign read-only guid issue occurs it doesn't make it to GenericPlayerInitialization

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The level loaded very quickly on the client according to this

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[2017.03.29-17.40.43:882][725]LogWorld: Bringing up level for play took: 0.044425

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[2017.03.29-17.40.43:882][725]LogNet:Verbose: NotifyLoadedWorld Begin

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The travel happened quickly too

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[2017.03.29-17.40.43:883][725]LogWorld: ----SeamlessTravel finished in 1.82 seconds ------

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and then I get the read-only guid warnings

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I am starting the session on the server in GameSession::PostSeamlessTravel

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void AFPSGameSession::PostSeamlessTravel()
{
    Super::PostSeamlessTravel();

    IOnlineSubsystem* OnlineSub = IOnlineSubsystem::Get();
    if (OnlineSub)
    {
        IOnlineSessionPtr Sessions = OnlineSub->GetSessionInterface();
        if (Sessions.IsValid())
        {
            UE_LOG(LogOnlineGame, Log, TEXT("Starting session %s on server"), *GameSessionName.ToString());
            Sessions->StartSession(GameSessionName);
        }
    }
}```

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Yeah the map is def loading fine on the client. Line 5 is the client telling the server that it has finished loading hte map

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https://hastebin.com/uyotusodag.md

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also from epic's comments it looks like they prefer levels that don't stream when using seamless travel

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 * This codepath is designed for worlds that use little or no level streaming and GameModes where the game state
 * is reset/reloaded when transitioning. (like UT)```

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Ahh I missed these warnings too

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https://hastebin.com/suvegukane.md

jolly siren Mar 29, 2017, 9:57 PM

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those warnings happen first, so probably the real issue

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[2017.03.29-17.40.42:492][699]LogNet:Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: NULL, Channel: 10```

summer rivet Mar 29, 2017, 10:01 PM

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ok I've been trying but I really don't understand how maps and networking work together. Lets say I have a Login Map that the client just has some HUD stuff, it connects to a non UE4 server for info, and then returns back some info. Once it's good to go I want it to connect to the UE4 dedicated server I have running the game world on. I assumed it would work by executing the console command for open IPADDRESS but that ends up loading the world map with the character stuck and unable to move (assuming something funky with the PC). If I manually execute a open level command to the map the server has and then open IPADDRESS to connect to the server then it seems to work fine.

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so whats the actual process of having clients change to the correct servers for the maps they want to go to

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or is it a case I should be handling the open IPADDRESS part differently on the server itself

jolly siren Mar 29, 2017, 10:05 PM

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sounds like you want sessions

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https://docs.unrealengine.com/latest/INT/Programming/Online/Interfaces/Session/

Sessions and Matchmaking

System for setting up advertisement of matches and handling matchmaking of players

rare cloud Mar 29, 2017, 10:07 PM

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it's crazy that it's so complicated to simply change the rotation of a character x)

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AController::ClientSetRotation(FRotator NewRotation, bool bResetCamera = false) didn't work for me

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also the control rotation affect the camera for me not the character

summer rivet Mar 29, 2017, 10:08 PM

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well I don't really want sessions. I literally want to know how to change maps on the client side and have them end up in the server I want

jolly siren Mar 29, 2017, 10:09 PM

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still sounds like sessions

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Matchmaking is the process of matching players with sessions. A session is basically an instance of the game running on the server with a given set of properties which is either advertised so that it can be found and joined by players wanting to play the game or private so only players who are invited or notified of it in some way can join.

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but yeah i guess you can do it without them

rare cloud Mar 29, 2017, 10:09 PM

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@summer rivet, look at this doc : https://docs.unrealengine.com/latest/INT/Gameplay/Networking/Travelling/

Travelling in Multiplayer

An overview of how travelling works in multiplayer.

summer rivet Mar 29, 2017, 10:09 PM

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well its not match making, its a server that runs a map and I can't get people to go to that map from another map =/

jolly siren Mar 29, 2017, 10:09 PM

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a match

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😛

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yeah look at traveling then

rare cloud Mar 29, 2017, 10:10 PM

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it can be an open world with some instance

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also if you want to keep some data persistant you can override the CopyProperties function from APlayerState

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or if your MasterServer already manage this you don't need it

summer rivet Mar 29, 2017, 10:11 PM

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yeah not even caring about data transfer or anything

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just literally going from one map to another lol

rare cloud Mar 29, 2017, 10:11 PM

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ok well APlayerController::ClientTravel is the way to go 😄

summer rivet Mar 29, 2017, 10:11 PM

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but how do you do that in BP's

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wait no not server travel

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server travel would cause anyone connected to have issues

jolly siren Mar 29, 2017, 10:12 PM

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issues?

summer rivet Mar 29, 2017, 10:12 PM

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im not changing the map on the server, im changing the map on the client only

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one map, one server. never changing

rare cloud Mar 29, 2017, 10:12 PM

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yeah I edited my message my bad

jolly siren Mar 29, 2017, 10:12 PM

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ah

summer rivet Mar 29, 2017, 10:13 PM

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and yeah how would I use Client Travel with just BP is the issue

rare cloud Mar 29, 2017, 10:13 PM

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hmm :/

summer rivet Mar 29, 2017, 10:13 PM

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it seems so weird I can't just get this working normally. I know I am missing something

rare cloud Mar 29, 2017, 10:14 PM

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I will check if VictoryPlugin haven't a node like this

summer rivet Mar 29, 2017, 10:14 PM

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like imagine you had a screen that was offline, you could set up options and such or connect to the game online. This is all in MapA. When you hit connect you want to connect to the server which has MapB loaded.

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just simply calling open IPADDRESS causes the game to basically not be playable which is the issue I can't get my head around

rare cloud Mar 29, 2017, 10:15 PM

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erf VictoryPlugin has ServerTravel but no ClientTravel

summer rivet Mar 29, 2017, 10:15 PM

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yeah I think I am doing something wrong on my actual connect stuff lol

opal sentinel Mar 29, 2017, 10:16 PM

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got my game starting to work for multiplayer. I just finally got my spawning working multiplayer style (you spawn guys in and controll them) . I got it to spawn fine for both players, but my server/player 1 doesnt see player 2's characters. player 2 see's all characters. Tried to change owner on the spawn pawn but that didnt seem to do it. Anyone have any ideas that could save me some runnin/lookin around?

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meshes arnt hidden, or set to owner only or anything

wary willow Mar 29, 2017, 11:05 PM

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@summer rivet Did you fix your issue? How are you connecting to the server in the first place?

summer rivet Mar 29, 2017, 11:14 PM

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Left the house and gave up for now. Just doing an open ipaddress console command in blueprints in a umg widget.

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I think I'm missing how networking , blueprints, map travel, dedicated servers all work together properly. Plan on making a new empty project and trying to figure it out.

wary willow Mar 29, 2017, 11:22 PM

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@summer rivet Have you read this yet? https://wiki.unrealengine.com/Dedicated_Server_Guide_(Windows_%26_Linux)

Dedicated Server Guide (Windows & Linux)

summer rivet Mar 29, 2017, 11:33 PM

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yep. I've got a dedicated server so that's not an issue here. I just can't seem to get travel from one map to another working properly on the client

summer rivet Mar 30, 2017, 12:11 AM

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blah finally figured it out. some issues with the game modes and with input mode but /rude UE4 networking lol

mellow cipher Mar 30, 2017, 12:11 AM

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Is the client changing maps while they are conmected to the server?

summer rivet Mar 30, 2017, 12:15 AM

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yeah I finally got that working here. My main issue was input mode was not being reset on map change and then I had some weird delay issues with spawning in players on the map change.

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the dedicated server kept giving me the notice that I was still in the first login map even when I was in the server world map was a big issue

jolly berry Mar 30, 2017, 12:36 AM

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Yo i have pawns spawning on the same location even though there are 4 spawn locations, is that a bug atm?

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it happens every once in awhile

wary willow Mar 30, 2017, 12:37 AM

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@jolly berry Do they spawn at 0,0,0?

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Or just one of your spawn points? What spawn point system are you using?

jolly berry Mar 30, 2017, 12:38 AM

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http://i.imgur.com/KA2LT21.jpg

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http://i.imgur.com/vqYCY72.png

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I just have 4 player spawns on my map, above the ground, and the game mode is auto spawning them

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I have a hunch though that the game mode isn't accounting for where one client is getting spawned, so there's a chance the second client will spawn in the same spot

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but this is just at start, nothing with respawning

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http://i.imgur.com/ozDYaHg.png

jolly siren Mar 30, 2017, 3:20 AM

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anyone have an idea on this? I have the same question, digging through source now

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https://answers.unrealengine.com/questions/360536/copyproperties-between-game-modes-during-map-trave.html

unborn rock Mar 30, 2017, 8:22 AM

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can't you use the GameState for this ?

wise depot Mar 30, 2017, 8:53 AM

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hey, any of you guys used the replay system?

rare cloud Mar 30, 2017, 11:03 AM

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@jolly siren, I reply to the answerhub

fossil silo Mar 30, 2017, 11:07 AM

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is there a trick to getting the default pawn to auto-possess? The server will auto-possess, but any clients that join will not. I set the default option to possess player 0

thin stratus Mar 30, 2017, 11:19 AM

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Autoposses is a local thing

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If you want auto possession you would need to set the pawn class in the gamemode

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Other than that you need to take care of possession yourself with, for example, the OnPostLogin event

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@fossil silo

fossil silo Mar 30, 2017, 11:21 AM

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i have the pawn set in gamemode

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the server will spawn and possess fine

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but the client doesnt seem to want to

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only trying to use ue framework to do it because i was having issues w/ doing it in onpostlogin

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may just be dillusional because i been pulling 15 hour days till the sun comes up lol and missing something obvious

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see, onpossessed event fires on server, but not clients

thin stratus Mar 30, 2017, 11:24 AM

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That's normal

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It's a server event afaik

fossil silo Mar 30, 2017, 11:30 AM

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hrmm, ok that would make sense of some things

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yea it says server on it

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hrmm

thin stratus Mar 30, 2017, 11:31 AM

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Well you have two ways:
Either you let the GameMode spawn the Character, which will take care of possessing it.
OR
You set the DefaultPawn to NONE, and spawn + possess the Character yourself

fossil silo Mar 30, 2017, 11:31 AM

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when u say let gamemode spawn, do u mean just set a default pawn?

thin stratus Mar 30, 2017, 11:31 AM

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Yes

fossil silo Mar 30, 2017, 11:32 AM

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ok, i was doing that, but my on possessed event set the 'possessed' bool, and thats what I was checking for, so maybe it was possessing, and the issue was somewhere else

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it was seeming like the server could see both characters and controllers (doing vr) but the client couldnt see anything

thin stratus Mar 30, 2017, 11:32 AM

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Well you should notice if it worked by just trying to run around with the client :P

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Ah, VR Multiplayer

fossil silo Mar 30, 2017, 11:32 AM

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hehe yea its quite a beast lol

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and our setup is quite complex

thin stratus Mar 30, 2017, 11:32 AM

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You are replicating them by hand?

fossil silo Mar 30, 2017, 11:33 AM

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using the third person template i can get it all working quick

thin stratus Mar 30, 2017, 11:33 AM

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(Controller positions)

fossil silo Mar 30, 2017, 11:33 AM

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but we have so much going on its starting to seem confusing lol

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yea

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one sec, ill show u

thin stratus Mar 30, 2017, 11:33 AM

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Na, I know how that looks like. You are not the first one :P

fossil silo Mar 30, 2017, 11:33 AM

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📎 unknown.png

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on character, i have this serverupdatehmdposition() running pretty often

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should I be multicasting?

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or am i supposed to just do it on server and let it replicate?

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it seemed like it wouldnt replicate properly after a lot of experimentation, and i sorta got this working this way

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but something was happening w/ possessing the character so i havent been able to see if this was working

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hey credic, i gotta hit the sack...thank u for the insights. 😃

jolly siren Mar 30, 2017, 11:46 AM

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@rare cloud thank you jack, I'll try that out

thin stratus Mar 30, 2017, 12:15 PM

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@fossil silo One thing is, you don#t want to make the multicast reliable

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That's not directly solving your errors, but if you call it that often, probably on tick, then having ALL multicasts on reliable is killing it.

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Things like this shouldn't need to ALWAYS reach the client

jolly siren Mar 30, 2017, 12:40 PM

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hm so seamless travel player's can be handled before gamemode calls PostSeamlessTravel that is annoying

twin juniper Mar 30, 2017, 1:09 PM

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@thin stratus hey you think u could help me out with some stuff

thin stratus Mar 30, 2017, 1:09 PM

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No idea what stuff

twin juniper Mar 30, 2017, 1:10 PM

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xD

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Ill show u in a sec

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http://i.imgur.com/TnrjwX5.png

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There u go

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btw just so you know "Temp_object_variable" does not exist

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and it never existed

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at any point in time

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Also for some reason my Camera is culling out the player mesh

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@thin stratus

thin stratus Mar 30, 2017, 2:50 PM

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Well I don't know. I guess you access an empty reference aka nullptr

jolly siren Mar 30, 2017, 2:56 PM

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sounds like a corrupted bp if it's complaining about variables that don't actually exist

blissful badger Mar 30, 2017, 4:22 PM

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I have a UActorComponent called UBaseStats that holds various float values for my character (like score, runspeed, set). This then has a delegate that is called whenever a value is updated. One place that delegate is bound to is a UUserWidget subclass which binds a BlueprintImplementableEvent to this delegate in it's NativeConstruct method. All of this works fine in single player and I can see my widget getting it's BlueprintImplementableEvent called. However when I switch to a dedicated server the delegate does not fire. I can see the round trip for the change happen on the client, then server, then back to the client (as in my OnRep callback is being called) however the multicast delegate shows no bindings. Can anybody help me out with this?

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sry for the wall of text 😃

vital steeple Mar 30, 2017, 6:42 PM

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i pretty much have the same problem^

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or at least the solution might help me resolve my issue 😃

blissful badger Mar 30, 2017, 6:46 PM

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i'm still investigating it myself so if i come up with anything i'll post it here

blissful badger Mar 30, 2017, 7:22 PM

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@vital steeple just found that binding the event directly in the BP seems to work

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kinda seems like some threading issue

vital steeple Mar 30, 2017, 7:41 PM

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hrm

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i have some replicated BP's that just hold some info and are generated at the start of the match

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as the server, i can update and read them just fine, but the values dont replicate as they are changed, despite the variables being replicated (and the command to change them is being run on the server)

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however, im new, so w/e. maybe i just need to spend more time doing this stuff and wrapping my brain around it

blissful badger Mar 30, 2017, 7:44 PM

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well i'll say i've spent 3 months with unreal so far, just started multiplayer a week ago and i'm still trying to get solid replicaiton going. doesn't seem to be as easy as the docs imply

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who owns those BPs?

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like, who are they attached to?

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and how are you updating them?

vital steeple Mar 30, 2017, 7:45 PM

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same thing for me, four months, starting MP stuff this week

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well they are created by the gamestate

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i guess the server owns them?

blissful badger Mar 30, 2017, 7:46 PM

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ok so shouldn't be an ownership issue then

vital steeple Mar 30, 2017, 7:46 PM

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each one is a "technology" that gets researched then unlocks the next tier

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it was easier to use this than a struct array, since working with struct arrays in BP is buggy

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im pretty sure i just need to sit down and redo everything on the communication side

blissful badger Mar 30, 2017, 7:48 PM

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i'm not sure on this, but i think also if you update a single item in an array it'll send the entire array, not sure there though

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i noticed some weird stuff when i had a TArray of structs

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how are you doing the unlock? server RPC?

vital steeple Mar 30, 2017, 7:49 PM

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the BP itself has some scripting

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just a loop that ticks every second for X seconds, then triggers an event that finds the other BP that it is supposed to unlock

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i guess whats weird to me is

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if something is created by gamestate, does the server automatically own it?

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or do you need to establish ownership

blissful badger Mar 30, 2017, 7:52 PM

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server owns gamestate, and all clients should receive replication

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so yea, i would expect that setup to work as well

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on your gamestate object did you set the component to replicate?

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like Component->SetIsReplicated(true); along with bReplicates = true; in the component constructor

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or equiv flags if they're pure BP

vital steeple Mar 30, 2017, 8:00 PM

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oh so the gamestate spawns the BPs as actors in the world

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they arent components of the gamestate

blissful badger Mar 30, 2017, 8:02 PM

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gotcha

vital steeple Mar 30, 2017, 8:03 PM

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but those BPs ARE replicated

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thanks fo rthe help! this stuff is a bit wonky IMO

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seems like it will be a constant struggle to remember what needs to be replicated, what needs to be sent to the server and what to the client etc

jolly siren Mar 30, 2017, 8:15 PM

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[2017.03.30-20.06.17:344][250]LogVoice:Verbose: Unknown remote talker (erebel55 [0x110000104F771D1]) specified to UnmuteRemoteTalker() has anyone seen these with voip?

blissful badger Mar 30, 2017, 8:18 PM

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@vital steeple yea sorry i couldn't be more help. and i totally agree, it does get complicated. if i can think of anything else and you're on i'll ping you but that's all i can think of for now

vital steeple Mar 30, 2017, 8:18 PM

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no worries man, i think i just need to be more structured with replicated stuff

blissful badger Mar 30, 2017, 8:19 PM

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might not be a bad idea, keep it more simple at first. i just rewrote my component last night to remove an array and just put static member variables for all the various entries. it's ugly but it's working for now

vital steeple Mar 30, 2017, 9:26 PM

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i havent been using custom components at all

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maybe i should use those for this

twin juniper Mar 30, 2017, 11:18 PM

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Is there a way to add a delay on a component

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Like i have an Actor Component

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but i want to know if i can call a delay node

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for multiplayer purposes lol

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i need a delay to stop the player from doing stuff before other stuff is initialized by the server

brittle sinew Mar 30, 2017, 11:20 PM

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Don't use a delay node for MP, that is really dangerous, try to keep everything event-based

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Because if something takes 0.01s too long for your delay, welp, there goes your flow

twin juniper Mar 30, 2017, 11:21 PM

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hm

wary willow Mar 30, 2017, 11:35 PM

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@twin juniper ...

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You need something to stop the player from doing stuff before other stuff is initialized by the server. Just like @brittle sinew said...this is a simple Event Based approach

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You might need/want an event queue

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And that will probably help you out

twin juniper Mar 30, 2017, 11:49 PM

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yeah

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I think i got it

dusty sleet Mar 31, 2017, 6:02 AM

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in something like the flying template where they're using addactorlocaloffset and addactorlocalrotation.... is there a way to replicate that type of movement to other players? As its its too choppy and hinders the movement, and tick seems like it wont replicate that well.. esp for something important like movement.

robust zephyr Mar 31, 2017, 8:59 AM

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any way to get netprofile to work? my editor crashes every time I try to profile networking

robust zephyr Mar 31, 2017, 11:53 AM

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ok, next question

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I want to rotate player character's child object and I want to replicate it's rotation. how do I achieve that. for whatever reason Unreal's replication stuff doesn't seem to make sense to me

red ledge Mar 31, 2017, 12:51 PM

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so, I'm trying to make a drone by using an actor then making it follow a specific socket on the player lerping the actor location to it on the server, it works fine on the server, but I get rubber-banding on the the client even when playing in editor. the drone just keeps going in the dircetion it should go then getting back etc. is it a prediction problem? and is there an easy way to fix it?

vocal ingot Mar 31, 2017, 12:58 PM

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Why is there "ClientPlayCameraShake"?

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why is it replicated?

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what if I only want to play camera shake locally

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without having server telling me to do it

jolly siren Mar 31, 2017, 1:27 PM

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then don't use ClientPlayCameraShake lol

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just use PlayerCameraShake

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I still can't figure out why my voip stops working after seamless travel 😦

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[2017.03.31-03.29.35:310][493]LogVoice: StartRemoteVoiceProcessing(ethornburg [0x110000111832965]) returned 0x00000000
[2017.03.31-03.29.35:316][494]LogVoice: Trigger Local 0 NOTTALKING
[2017.03.31-03.29.35:359][494]LogAudio:Warning: Waited 41.452251ms for audio thread.
[2017.03.31-03.29.35:359][495]LogVoice: Trigger Local 0 TALKING
[2017.03.31-03.29.35:360][495]LogVoice: Unmuting remote talker (ethornburg [0x110000111832965])
[2017.03.31-03.29.35:360][495]LogVoice: Unmuting remote talker (ethornburg [0x110000111832965])```

#

it all seems fine from the logs

jolly siren Mar 31, 2017, 2:07 PM

#

hmm I do see one of these in one of the client logs

#

[2017.03.31-03.29.36:399][825]LogVoiceDecode:Warning: SubmitRemoteVoiceData: DecompressVoice failure: VoiceResult: '1' k_EVoiceResultNotInitialized (Voice Not Initialized)

robust zephyr Mar 31, 2017, 2:11 PM

#

So, question about replication. I can use this to make a static mesh component rotation visible for other players but something makes it spasm like hell if its owner can see it. How should I fix it?

📎 UE4Editor_2017-03-31_17-06-57.png

jolly siren Mar 31, 2017, 2:14 PM

#

oop cool looks like someone else is having this issue as well, I'm not alone
https://answers.unrealengine.com/questions/580964/steam-voice-chat-stops-working-after-server-travel.html

#

@robust zephyr that looks awful, why are you calling RPCs from tick?

#

think about what that would do to a network

#

sending an RPC 60 fps

robust zephyr Mar 31, 2017, 2:21 PM

#

temporary solution, meaning to put it in a 20-60tick loop with calculations to skip when no changes occur

jolly siren Mar 31, 2017, 2:21 PM

#

yeah that is still crazy overkill

#

redesign it in a way that replicates the least amount of data over the network as possible

robust zephyr Mar 31, 2017, 2:22 PM

#

doing that once I start to understand this whole replication stuff

jolly siren Mar 31, 2017, 2:28 PM

#

Anyone else using steam voip in 4.15?

twin juniper Mar 31, 2017, 5:23 PM

#

Is there a way for the server to detect client overlaps?
like, i have a structure on the server i made yet on the server it isnt detecting client overlaps of the server actor

#

im spawning a dummy object and trying to find snap points on the client
before spawning it on the server
yet the server is saying there is no collision

#

hi guys

#

please

#

My steam integration works perfectly fine until I package a shipping build

#

I found that you should add a steam_appid.txt with 480 in it to the games core but it does not help

#

@twin juniper go to the DefaultEngine.ini file

#

and set your app id there

#

@twin juniper [OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480
SteamAppId=480

#

so I guess it is set

#

So there is no way for the server to detect client collision

#

@twin juniper what?

jolly siren Mar 31, 2017, 6:25 PM

#

@thin stratus yeah I still see all of these on both clients after travel

#

[2017.03.31-18.16.22:754][212]LogVoiceDecode:VeryVerbose: SubmitRemoteVoiceData(ethornburg [0x110000111832965]) Size: 15 received!

twin juniper Mar 31, 2017, 6:29 PM

#

Is it possible to spawn an actor on the server and make it only visible to a specific client until an event (ie. left click) @thin stratus

thin stratus Mar 31, 2017, 6:30 PM

#

Hm

#

Isn't there a boolean for "OnlyRelevantToOwner"?

twin juniper Mar 31, 2017, 6:31 PM

#

I'm not sure because I'm trying to spawn my dummy on client and then use the dummy position to do something. However, the one doing the collision detection is a server actor

#

Lol

twin juniper Mar 31, 2017, 6:57 PM

#

@thin stratus i need to be able to turn on visibiltiy only for client, and then be able to turn it on for everyone on the fly

twin juniper Mar 31, 2017, 7:17 PM

#

does anyone know?

thin stratus Mar 31, 2017, 7:24 PM

#

What about the OwnerOnly visibility setting

#

That's usually used for 3rd and 1st Person meshs

#

"OwnerOnlySee" and "OnwerNoSee" or so

jolly siren Mar 31, 2017, 7:29 PM

#

yeah it would be the same as a first person mesh

twin juniper Mar 31, 2017, 7:34 PM

#

hmm

#

http://i.imgur.com/XEbGSNU.png

#

So this is what i have

#

if its overlapping, snap to a point on client

#

and if its not snapping and its not placed, just follow the camera around

jolly siren Mar 31, 2017, 7:39 PM

#

set OwnerOnlySee to true before it's placed. And then to false once you place it

twin juniper Mar 31, 2017, 7:39 PM

#

Okay

#

So i cant spawn the object on client first?

#

im going to have to spawn it on server?

jolly siren Mar 31, 2017, 7:41 PM

#

you could spawn it on client and then once it's placed destroy that on client and spawn it on server with rep

#

or you could just spawn on server with the OwnerOnlySee stuff I outlined above

twin juniper Mar 31, 2017, 7:41 PM

#

yea

robust zephyr Mar 31, 2017, 7:50 PM

#

so, would 10 rpcs/s be acceptable?

jolly siren Mar 31, 2017, 7:52 PM

#

@robust zephyr what are you rotating? what are you really trying to accomplish?

robust zephyr Mar 31, 2017, 7:53 PM

#

I'm rotating a turret currently

jolly siren Mar 31, 2017, 7:54 PM

#

what's wrong with 2 rpcs, startrotate and stoprotate?

robust zephyr Mar 31, 2017, 7:56 PM

#

do you mean like 2 calls to server per second?

jolly siren Mar 31, 2017, 7:58 PM

#

no, I meant server tells client to start rotating. and client rotates until server tells it to stop. so 2 rpcs. nothing per second.

#

anyways gl, gotta get back to my stuff

robust zephyr Mar 31, 2017, 8:01 PM

#

I'm really confused right now

#

I guess I need someone to explain me how to pass info to server without RPC

#

so

#

do you mean I would restart the rotation stuff evertime the rotation direction starts to differ from what it was at the start?

#

because that would just end up as few rpcs per sec, something you told to avoid

thorn merlin Mar 31, 2017, 10:45 PM

#

the real question is, do you wanna flood your network up just for turrets

#

i have my turrets replicate their aim direction only when they fire

thin stratus Apr 1, 2017, 9:27 AM

#

@robust zephyr There is no way to communicate with the Server as a Client without using a ServerRPC on a ClientOwned Actor

#

I mean, despite some socket stuff, but let's not start with that

#

Setting it on tick is not really a problem as long as you don't set it to RELIABLE.
The things that I can see so far are:

Authority (Server) is only calling a ClientRPC and not a Multicast. This Data only lands on the OwningClient and others won't see it
Remote (Client) should be fine if he only tells the Server to set the Rotation. The Server is Multicasting it anyway, so the next tick should have the updated Rotation from the Client.

The problem that might occure is, that Server/Client Rotation differ. So the Server and Client try to send info at the same time.
What you can do is limiting the TICK call to the OwningPlayer. The Server only needs to multicast on tick if he owns the Actor.
Otherwise he would constantly override the Clients RPC. Try to use "IsLocallyControlled" or so.

slim holly Apr 1, 2017, 9:37 AM

#

question about destruction replication: client joins midway to multiplayer match, and has local copy undamaged map. What would be the most reasonable way to store damage on server?

#

I was thinking saving the environment radial damages as separate actor that are replicated, but that would probably end up being really high number very fast

#

so should I go for Vec + 2 floats to save location, radius and damage value - array

#

but that array is gonna be huge too

thin stratus Apr 1, 2017, 9:50 AM

#

Actors handle that themselves

#

You would have either a normal Replicated Variable or a RepNotify one if you need some events to appear

#

e.g. Health variable that replicates when the Player joins and then destroys itself with some explosions if health <= 0

slim holly Apr 1, 2017, 9:51 AM

#

yes, but the visual wont be matching

#

which is kinda important

#

for partially damaged meshes

#

I should look into heatmaps

#

its gonna be a similar system, maybe that helps

robust zephyr Apr 1, 2017, 12:02 PM

#

Thanks @thin stratus , got some spasms fixed with that IsLocallyControlled node.

#

I currently have this kind of setup currently. http://i.imgur.com/ZbnSFZ0.png

#

updates target rotation 10 times per second

#

though non-listen client sees its own version spasm between zero'd and target rotation

thin stratus Apr 1, 2017, 12:27 PM

#

Well you are limiting the Multicast to the owning client

#

That's not usefull :P

robust zephyr Apr 1, 2017, 12:32 PM

#

oh, so that's why it helped, I forgot to turn it back to owningclient

#

so, all spams happened because I forgot to make sure only owning client starts the update loop

limpid meadow Apr 1, 2017, 2:29 PM

#

Hi, I need some help with dynamic level streaming and multiplayer. Can someone help me there?

twin juniper Apr 1, 2017, 4:37 PM

#

hey so

#

@thin stratus hey so Set_Only_Owner_See(true); doesn't seem to do anything

#

does it need to be multicasted?

#

hm

#

doesnt seem to work either

#

lolol

#

It only seems to work in the begin play function of that component

twin juniper Apr 1, 2017, 5:53 PM

#

Anyone else know?

thin stratus Apr 1, 2017, 6:27 PM

#

I don't know if that can be set during runtime

rare cloud Apr 1, 2017, 8:10 PM

#

@twin juniper, what do you want to achieve ?

twin juniper Apr 1, 2017, 8:26 PM

#

I want to be able

#

to have a mesh be visible only for the player

#

until he places it

#

then it should be visible for everyone

#

@rare cloud

thin stratus Apr 1, 2017, 8:52 PM

#

Then only tell that perticular client to spawn the mesh

twin juniper Apr 1, 2017, 8:52 PM

#

thats what i had originally

#

i had it spawning on client

#

but then the server cant detect a client collision

#

(For my snapping)

thin stratus Apr 1, 2017, 8:52 PM

#

Then also spawn it on the Server

#

The Server and the Client don't need a replicated version for this

#

Server spawns one ,Client spawns one

#

Both can check collision on it

#

Client maybe changes some visuals, like a red outline if it overlaps or so

#

And server decides if placing is allowed

twin juniper Apr 1, 2017, 8:53 PM

#

hmmm

thin stratus Apr 1, 2017, 8:58 PM

#

It works like this:

Client presses button (or similar) to start placing a mesh. This Mesh should be an Actor that is only responsible for exactly this. (e.g. BP_PlaceholderMesh)
Client checks if he can actually start the placing process (e.g. has the Item or what ever is needed for this)
If he can, he will spawn the Placeholder and do collision checks for visuals (and only for visuals!)
Client will also send a ServerRPC to tell the Server that he wants to start placing
Server checks if he's allowed, if yes, he also spawns the Placeholder (still not replicated!)
When the client thinks it's a cool place to put the mesh, he tells the Server to actually place the Mesh
This is another ServerRPC. The Server will check the collision now with his version and will then remove the Placeholder mesh if placing is allowed
He can now also tell the Client (ClientRPC) that placing was successful
8.1. Though to remove the feeling of lag, you could at least remove the placeholder actor on client sight when the client things he can place the actor. Otherwise the ClientRPC would result in the removing of the placeholder mesh on the client

twin juniper Apr 1, 2017, 9:02 PM

#

@thin stratus curious, would this work?

#

void AStructure::SetOnlyOwnerSee(bool SetOnlyOwnerSee)
{
    Structure->bOnlyOwnerSee = SetOnlyOwnerSee;
    Structure->MarkRenderStateDirty();
}```

#

havent tried it yet lol

#

its a multicast function

#

i wanted to try

#

if not ill try your method

thin stratus Apr 1, 2017, 9:03 PM

#

Why not just doing it as I just told you

twin juniper Apr 1, 2017, 9:03 PM

#

i would have to delete what i have

#

which i guess im ok with

#

its just... if it doesnt work

#

then im going to have to rollback lol

rare cloud Apr 1, 2017, 9:05 PM

#

@twin juniper, use PreReplication ?

twin juniper Apr 1, 2017, 9:07 PM

#

hey wait

#

i just did it!

#

my method seems to have worked

#

void AStructure::SetOnlyOwnerSee_Implementation(bool SetOnlyOwnerSee)
{
    Structure->bOnlyOwnerSee = SetOnlyOwnerSee;
    Structure->MarkRenderStateDirty();
}

#

MarkRenderStateDirty()

#

forces the renderer to re-render

#

lol

#

i call that own spawn to set it to only be visible to owner

#

then i call it again once its placed

#

and it spawns it in for everyone

#

that might be very useful to someone in the future actually

#

lol

#

also I highly reccomend anyone using networking in 4.15 to include "UnrealNetwork.h" in their project header... seems like thats where all the DOREP functions are now, maybe im just dumb but it seems like they were moved

twin juniper Apr 1, 2017, 9:35 PM

#

@thin stratus hey so for your method wouldnt this mean i have two actors? one is a placeholder, and then the other is the real thing

#

just want to make sure

fossil spoke Apr 1, 2017, 9:49 PM

#

DOREP was always in UnrealNetwork.h @twin juniper

twin juniper Apr 1, 2017, 9:50 PM

#

yea

#

i wasnt sure

reef yarrow Apr 1, 2017, 9:51 PM

#

Anyone here ever setup a dedicated server ?

twin juniper Apr 1, 2017, 9:57 PM

#

I do

#

but i cant help atm

south flare Apr 1, 2017, 10:08 PM

#

wow, i have no idea why these arrays just will not replicate to save my life!

#

@reef yarrow you need to build it from source

frank portal Apr 1, 2017, 10:12 PM

#

yep https://wiki.unrealengine.com/Dedicated_Server_Guide_(Windows_%26_Linux) this could be useful for you @reef yarrow

Dedicated Server Guide (Windows & Linux)

twin juniper Apr 1, 2017, 10:13 PM

#

only thing about onrep functions is i wish they gave u a old value

#

so like if its a float you can have it like:

void OnRep_UpdateHP(float oldHP){
  doHUDSTUFF(oldHP, newHP);
}

reef yarrow Apr 1, 2017, 10:21 PM

#

@south flare @frank portal I've already set it up, Have the exe. Have you ever set it up with steam?

south flare Apr 1, 2017, 10:21 PM

#

yeah

#

you can register it with the steam OSS

reef yarrow Apr 1, 2017, 10:22 PM

#

If you register it with the steam OSS (Which i assume you do in visual studio) Can other players see your sessions?

south flare Apr 1, 2017, 10:22 PM

#

they should

frank portal Apr 1, 2017, 10:23 PM

#

no sry i never set it up for steam ^^

reef yarrow Apr 1, 2017, 10:27 PM

#

@Jaden Dude I need help Cause I Registered my sessions, and, I Tryed Connecting To my own dedicated server from my computer and couldn't see them.

#

@Jaden With the arrays your replicating> What is in the aray?

#

@mild veldt Cause I Found that certain variable like, Arrays of Widgets don't Replicate properly but i was able to replicate arrays of booleans.

brittle sinew Apr 1, 2017, 10:39 PM

#

That's because widgets are local only 😛

reef yarrow Apr 1, 2017, 10:40 PM

#

Well Yeah they are local, But sometimes you gotta network that info so that other players know you've done something in a ui

brittle sinew Apr 1, 2017, 10:41 PM

#

Well that's when you use RPCs through other routes, not on the widget itself

reef yarrow Apr 1, 2017, 10:50 PM

#

Damn straight.

twin juniper Apr 2, 2017, 12:48 AM

#

i think i broke the engine

#

whats wrong with this flow

#

Spawn Dummy Actor (Follows mouse around), assign the dummy actor a reference to my player -> have it set a FTransform on my character to the dummy's transform every frame -> on character, if player left clicks, spawn actor with the FTransform that was set in the dummy

#

i dont get how that flow is wrong

#

it looks perfectly fine to me

brittle sinew Apr 2, 2017, 12:55 AM

#

What about it isn't working?

twin juniper Apr 2, 2017, 12:58 AM

#

https://youtu.be/gukWfV-7AXY

YouTube

Bdoom

Did I break Unreal Engine 4 multiplayer?

▶ Play video

#

Look at this

#

@brittle sinew I made a video of it

#

am i not doing it right or wtf

brittle sinew Apr 2, 2017, 12:58 AM

#

Processing

#

😐

twin juniper Apr 2, 2017, 12:59 AM

#

@brittle sinew its up now lol

brittle sinew Apr 2, 2017, 1:03 AM

#

Where your platform actually spawned...is that the 0,0,0 point?

twin juniper Apr 2, 2017, 1:03 AM

#

yea

brittle sinew Apr 2, 2017, 1:03 AM

#

So wait...current structure is the actor spawned on the client, correct?

twin juniper Apr 2, 2017, 1:03 AM

#

yea

brittle sinew Apr 2, 2017, 1:04 AM

#

So how would the server get its transform?

twin juniper Apr 2, 2017, 1:04 AM

#

well i tried changing it

#

to be replicated

#

and then setting a server event

brittle sinew Apr 2, 2017, 1:05 AM

#

Just because the structure is replicated in its constructor doesn't mean one spawned on the client will replicate

#

You'll probably be better off just passing the transform through the RPC, getting the transform on the client

twin juniper Apr 2, 2017, 1:05 AM

#

yea

#

which i tried

#

ill try it again

#

wait so

#

if u spawn an actor on the client

#

it wont be able to send ANYTHING

#

to the server?

#

like i cant make a Server RPC

#

and send it the FTransform?

brittle sinew Apr 2, 2017, 1:07 AM

#

Not on that object itself, no

twin juniper Apr 2, 2017, 1:07 AM

#

then how am i supposed to turn my dummy into a real thing

#

lol

brittle sinew Apr 2, 2017, 1:07 AM

#

If you get its transform where you call the current server RPC and just pass that along, it should work

#

Local actors are local actors—they don't exist on the server, no way around it

twin juniper Apr 2, 2017, 1:08 AM

#

ok

#

so i would have to pass it

#

into the server function

#

as a reference/

brittle sinew Apr 2, 2017, 1:08 AM

#

That's how I would do it

#

I wouldn't send the full transform if you don't change scale though

#

Save those 12 bytes

#

😛

twin juniper Apr 2, 2017, 1:08 AM

#

well

#

I mean i need rotation and location obviously

#

because the object may be rotated

#

..etc

brittle sinew Apr 2, 2017, 1:09 AM

#

Well yeah, obviously, it's just if you're not changing scale you can still send location + rotation

twin juniper Apr 2, 2017, 1:09 AM

#

yea

#

ok

#

ill do that then

brittle sinew Apr 2, 2017, 1:10 AM

#

Honestly, it's probably not that big of a deal on a function that doesn't get called constantly, but it was just me looking for something, haha

twin juniper Apr 2, 2017, 1:10 AM

#

xD

#

http://i.imgur.com/x4jrISj.png

#

So basically

#

because that was inside of my Server RPC

#

the server didnt know wtf was going on

#

with the transform?

#

just want to make sure so i know for the future

#

And basically, anything that isnt replicated won't be able to be accessible by the server?

brittle sinew Apr 2, 2017, 1:13 AM

#

Yeah, the structure was null on the server, so it just returned a 0 transform

twin juniper Apr 2, 2017, 1:14 AM

#

eyyyyyy, it worked!

brittle sinew Apr 2, 2017, 1:14 AM

#

Probably would show up in your error log 😛

#

Nice 👍

twin juniper Apr 2, 2017, 1:14 AM

#

good to know tho

#

anything that u need from the client

#

needs to be passed from the client

#

makes sense... lol

#

Unless its replicated

brittle sinew Apr 2, 2017, 1:15 AM

#

Yeah, passing pointers to another function will only work if that object exists in the other context as well

#

Passing data structures, however, is just numbers

twin juniper Apr 2, 2017, 1:17 AM

#

hmm

#

so you couldnt just pass an actor

#

unless that actor also exists

#

on server

brittle sinew Apr 2, 2017, 1:17 AM

#

Correct

twin juniper Apr 2, 2017, 1:18 AM

#

Okay

#

Yeah it honestly makes a lot of sense

#

lol

#

i should just start thinking of server functions being on another plane of existance

#

like imagining it as a separate world helps, coz then u can be like "what does this world have"

#

lol

brittle sinew Apr 2, 2017, 1:20 AM

#

Yeah, pretty much

twin juniper Apr 2, 2017, 1:26 AM

#

@brittle sinew thanks btw

brittle sinew Apr 2, 2017, 2:22 AM

#

👍

twin juniper Apr 2, 2017, 3:15 AM

#

@brittle sinew hey so if an actor is on the server, how does OnComponentBeginOverlap() work for client spawned actors

#

would i have to do any collision tests on the client

#

then validate them on the server?

brittle sinew Apr 2, 2017, 3:20 AM

#

What do you mean for client spawned actors?

#

If it's spawned by a client, it's not on the server

twin juniper Apr 2, 2017, 3:50 AM

#

@brittle sinew yeah but could I do a collision test on the client? and (just for my snapping instance) or would the client not even know there is a collider in that zone?

boreal merlin Apr 2, 2017, 6:24 AM

#

The online leaderboard subsystem has a function for "GetLeaderboardsForFriends" what I want is to display leaderboards for all players who turn on my game not just display leaderboards for my friends. Is this possible using the built-in functionality or would I need to write my own c++ functions.

bold cedar Apr 2, 2017, 7:02 AM

#

Does someone have dedicated servers working with Steam? I have a few questions about setting it up

#

I have dedicated servers on the null subsystem working fine, and just a normal listen server working fine over steam, but trying to use a dedicated server with steam doesn't seem to work. I can't seem to join the server, and there is no acknowledgement whatsoever in the server log that I am trying to join (Can't find session, and joining with IP does nothing)

#

Other than that, everything looks fine in the log when using steam. No steam errors or anything

#

I am testing with our app ID, though I haven't touched anything in the Steam dev portal

twin juniper Apr 2, 2017, 9:45 AM

#

My steam integration works perfectly fine until I package a shipping build
I found that you should add a steam_appid.txt with 480 in it to the games core but it does not help

#

please anzone can help<

#

?

#

anyone*

thin stratus Apr 2, 2017, 11:06 AM

#

What exactly is not working?

#

Any log files you could share?

dusty sleet Apr 2, 2017, 11:59 AM

#

Is there a proper way to replicate rotation on tick that works ? i have it "working" but the clients rotate at almost have the speed of the server.... which is unusable.

dusty sleet Apr 2, 2017, 12:23 PM

#

opened a question on answerhub with a video of what it looks like. https://answers.unrealengine.com/questions/583723/rotation-replication-doesnt-work-right.html

proud hemlock Apr 2, 2017, 12:38 PM

#

Should there be one player state object for every client? If I run PIE with 2 clients, it shows player state only for the first player and not the second

#

Printing PlayerCount from GameState shows that only 1 player is present

dusty sleet Apr 2, 2017, 12:44 PM

#

@proud hemlock ya there should be one for each client.

brittle sinew Apr 2, 2017, 12:50 PM

#

@twin juniper AFAIK collusion should work fine on the client if it's not replicated

twin juniper Apr 2, 2017, 2:58 PM

#

@brittle sinew lol so dude, my snapping is finally working as i intended... however its locking the player to that position... it snaps but u cant unsnap by moving back

#

its basically because of this

#

http://i.imgur.com/hwpZplX.png

#

I have no way of detecting if the player moved out... if they move away it should set Is Overlapping to false

#

It's set to true when it overlaps with another component (OnComponentBeginOverlap()) and set to false when OnComponentendOverlap() is claled

twin juniper Apr 2, 2017, 4:17 PM

#

yeah i still have no god damn clue

#

what to do here lul

twin juniper Apr 2, 2017, 5:12 PM

#

https://www.youtube.com/watch?v=qAJ0fjbaVQQ&feature=youtu.be

YouTube

Bdoom

My Snapping Is Broken

▶ Play video

bold cedar Apr 2, 2017, 10:54 PM

#

What do I have to do on Steam's end to be able to connect to a dedicated server? Do I have to actually upload a game demo to Steam?

reef yarrow Apr 2, 2017, 11:01 PM

#

@bold cedar Hey there bud I ran into this same problem i think. Have you compiled your dedicated server?

bold cedar Apr 2, 2017, 11:07 PM

#

Yes, I have a dedicated server build, and a normal game build.

#

The problem is that we can't connect to the server via server browser or IP @reef yarrow

twin juniper Apr 2, 2017, 11:30 PM

#

open steam.ServerSteamID(long number):PORT Does this do anything

bold cedar Apr 2, 2017, 11:34 PM

#

Where do I get the ServerSteamID from?

reef yarrow Apr 2, 2017, 11:39 PM

#

@bold cedar I don't know how to do it. But i know a guy who does it,

twin juniper Apr 3, 2017, 4:04 AM

#

@bold cedar you just google it lol

#

www.steam.io

#

and type in your steam name

dusty sleet Apr 3, 2017, 5:47 AM

#

@vivid siren agreed somewhat. but is there something in particular you're struggling with?

vivid siren Apr 3, 2017, 5:47 AM

#

just the "Simple Move To" being a pain in the ass for multiplayer

#

As much as I would like to ask for help and try to learn a solution, I know for a fact that this problem will repeat in some other way immediately after

fossil spoke Apr 3, 2017, 5:49 AM

#

SimpleMoveTo modifies velocity of the Pawn, the Pawns position is replicated automatically (you must set the Actor to replicate). What exactly isnt working for you?

vivid siren Apr 3, 2017, 5:50 AM

#

The issue is easy to recreate
I start from Top Down template, remove all the unnecessary HMD stuff and add a second player

#

It doesnt work out of the box obviously so I create a custom event to be called on server which passes through the hit and calls for the move to hit location

#

the client moves but it stutters like mad and takes about 10x longer than it should to complete the distance

dusty sleet Apr 3, 2017, 5:53 AM

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ive not used that function.. only behavior tress for moving ai so

vivid siren Apr 3, 2017, 6:04 AM

#

@fossil spoke this is it

📎 anotherfuckingproblem.png

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I read somewhere that I should use the AI navigation?

#

I have a lot of motivation issues when working on projects as it is, this nonsense just makes it worse

dusty sleet Apr 3, 2017, 6:16 AM

#

so when you run that it suttters like crazy? does it stutter like crazy on the server too or just the client?

vivid siren Apr 3, 2017, 6:17 AM

#

Yeah stutters for both

#

Kind of

#

It stutters and slowly moves on the client

#

but it just slowly moves on the server

#

like a very slow walk animation

#

on client the player is always looking down as well, never rotates

dusty sleet Apr 3, 2017, 6:18 AM

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not sure how that move to function works... sounds like either its trying to move to multiple places.. like being set a location from one place and told to move to another... or its being called too many times

vivid siren Apr 3, 2017, 6:19 AM

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well i give up

#

i do game dev to relax and enjoy myself but this garbage replication system ruins it for me, i'll just stick to netflix

worn nymph Apr 3, 2017, 8:07 AM

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Hi guys what is the best way to identify different players in multiplayer game ? For instance I'm trying to make an in game scoreboard umg widget . Do You have to do something like get all actors node and put all the player controllers into an array and then iterate through each player controller and get the information like name , team etc . Something like that ?

fossil spoke Apr 3, 2017, 8:10 AM

#

@worn nymph Since UI is client side only, you wont have access to other clients PlayerControllers. This is where the PlayerState class comes into play. Instead of iterating through PlayerControllers (which wont exist anyway), use the GameStates Players array, this array contains all PlayerStates for every client.

You can then access replicated properties on the PlayerState, i would hope that you are holding things like Kills, Deaths, Score etc etc on the PlayerState, if you arent you will need to start doing so as this is the more appriopriate method of access for those types of information for use with things like an Scoreboard.

worn nymph Apr 3, 2017, 8:18 AM

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Ah so there is an array in game state you can already use . And does this array populate automatically for example when a player joins my server it adds itself to the game state player array ? When it disconnects it removes itself ?

I haven't got that far yet in just hypothetically thinking through my next problem .

So far player logs in and I load all his username stats etc from external database and then I save this in game state as I need it to persist rather than having to keep loading it. So I should use playerstate instead ? Thanks

fossil spoke Apr 3, 2017, 8:20 AM

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Yes when a PlayerController is created for a client that joins an PlayerState is automatically added to the GameState Player array and replicated accordingly. Same goes for when an client leaves, its PlayerState will be removed.

#

PlayerState is for information you want to share between clients about that player during that session

#

GameState is for information about the state of the game that you want to share between the server and all client for example.

wise depot Apr 3, 2017, 8:23 AM

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is there a callback for once an actor has been replicated?
server side

dusty sleet Apr 3, 2017, 8:24 AM

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📎 unknown.png

worn nymph Apr 3, 2017, 8:24 AM

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So let's say I have two players logged in I cast to gamestate->get playerArray->get playerstate1->get player name .

fossil spoke Apr 3, 2017, 8:25 AM

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@wise depot An Actor doesnt get "replicated" its properties are replicated as needed.

wise depot Apr 3, 2017, 8:26 AM

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well yeah but its not one at a time its an entire state

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is it not?

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'cause that's certainly the way the editor behaves for me, the problem is I have no callback server side for once all of this happens to know when its safe to flush some data

fossil spoke Apr 3, 2017, 8:28 AM

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Properties on an Actor are only replicated when they change, the entire Actor is not replicated itself, only the properties that have changed are replicated at that time.

#

Do you mean to ask that you want to know when an replicated property actually arrives at the destination client?

wise depot Apr 3, 2017, 8:30 AM

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no, i need to know exactly when a server has finished building a state and sends that out so i can flush some data for the next replicated state

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so the point where hte server goes "Okay, all of this has changed, send this to everyone" once its sent it, i need to clear out some stuff

worn nymph Apr 3, 2017, 8:31 AM

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Use rep notify functions

wise depot Apr 3, 2017, 8:31 AM

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Do replays trigger those?

#

I know they don't trigger RPCs

worn nymph Apr 3, 2017, 8:32 AM

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Oh I thought you meant for normal stuff lol

wise depot Apr 3, 2017, 8:32 AM

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that's the problem, this is for the replay mode nto the actual multiplayer. there's a certain handful of events i need stored somewhere for the replays to trigger a visual event

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with timestamps etc

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hence needed a callback server side so i can clear out a bunch of stuff and still have the replay client trigger them at the right times

fossil spoke Apr 3, 2017, 8:35 AM

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Check out UChannel::ReplicateActor this is where most replication is managed

wise depot Apr 3, 2017, 8:36 AM

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thank you

fossil spoke Apr 3, 2017, 8:38 AM

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@worn nymph What you asked before is correct, that is how you access Players Names

wise depot Apr 3, 2017, 8:38 AM

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was that added in 4.15? I can't seem to find it in 4.14

fossil spoke Apr 3, 2017, 8:39 AM

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It might have been refactored

wise depot Apr 3, 2017, 8:39 AM

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yeah zero references found

fossil spoke Apr 3, 2017, 8:39 AM

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UNetDriver::ServerReplicateActors

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Try starting there

wise depot Apr 3, 2017, 8:39 AM

#

alrighty, thanks

#

ah

#

UActorChannel::ReplicateActor

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that's where it was hiding

fossil spoke Apr 3, 2017, 8:40 AM

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Ah yep

worn nymph Apr 3, 2017, 8:46 AM

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@fossil spoke @wise depot awesome it makes sense now I'll try tonight . Thanks for the help

fossil spoke Apr 3, 2017, 8:46 AM

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👍

wise depot Apr 3, 2017, 8:51 AM

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nope apparantly UActorChannel::ReplicateActor doesn't exist either

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-.-

brittle sinew Apr 3, 2017, 12:53 PM

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@wise depot https://github.com/EpicGames/UnrealEngine/blob/76085d1106078d8988e4404391428252ba1eb9a7/Engine/Source/Runtime/Engine/Private/DataChannel.cpp#L2249

wise depot Apr 3, 2017, 4:05 PM

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@brittle sinew Thanks yeah I found the same thing after a while 😃

#

i've resorted to the following to make a callback project side so I don't have to roll out an engine modification in the office:

Actor->GetWorld()->DemoNetDriver->ClientConnections[0]->ActorChannels.FindRef(Actor)->LastUpdateTime;

that gets updated whenever the state is refreshed (even if nothing changed) however for something that changes every single tick that I need recording for replays its safe for me to abuse

#

checking against LastUpdateTime basically

vivid siren Apr 3, 2017, 4:39 PM

#

Does anyone know how to implement multiplayer in the Top Down template?

vivid siren Apr 3, 2017, 5:40 PM

#

Or rather, does anyone know how to use something like Simple Move To on client?

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I've read that I need to use an AI controller to control the pawn and use the AI Move To for it to work on client and server and that I need my normal Player Controller to reference the AI Controller but that just seems absolutely ridiculous imo

brittle sinew Apr 3, 2017, 5:46 PM

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Not sure where you would hear something like that...AIControllers are server-only

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You won't use them on the client at all, you'll just have the server network position changes

vivid siren Apr 3, 2017, 6:07 PM

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@brittle sinew So what should I do if I want to properly make multiplayer top-down?

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I've seen methods where people use the click location to drive the movement component into moving in that direction and since that autoreplicates perfectly it seemed fine but that method has no pathfinding whatsoever

#

And I'd like to keep the pathfinding for when the player clicks behind obstacles

thorn arrow Apr 3, 2017, 6:15 PM

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Hey, i have an issue, i don't know how change pawn in multiplayer, i have tried to unposses and destroy actor, but i don"t know what should be the target, i have tried get player controller and get controller but it didn"t work, in the ue-blueprint someone told me to use get controlled pawn but i don"t know who should be the target, if not self.

#

📎 unknown.png

robust zephyr Apr 3, 2017, 6:31 PM

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If I were to populate a struct in mainmenu, how can I make sure the server the client connects to gets the the client owns, not some duplicates of host's own or some empty version?

twin juniper Apr 3, 2017, 6:38 PM

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so i got actors dotted around the map from editor. when the player pushes E on it, a UMG menu pops up for the player.
the UMG has access to both pawn and the useable actor in the world. also on the UMG i can read data from the pawn and the actor and show it in the UMG.

my problem comes when i want the UMG to affect the actor based on player input. I want the player when they push a button on the UMG to ask the server to run a function on behave of the useable actor, eg. pick it up, or special gamemode functions. this does not work because these actors have NO NET OWNER. so i cant run SERVER rpcs on it..... the pawn has no "owning connection" to it .

how do i get the pawn to beable to run server RPCs on actors that have no netowner eg. editor placed actors???

#

i suppose i can be messy and put all the RPC's inside of the pawn? or maybe thats how its supposed to be done???

brittle sinew Apr 3, 2017, 6:50 PM

#

Yeah, that's not exactly messy, that's kind of how it's intended

#

Usually you would put it on the controller rather than the pawn since the controller leans more towards input, but either works

twin juniper Apr 4, 2017, 4:38 AM

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Question that probably few has come across: Pointer events called on a 3dwidget blueprint works as intended in PIE/Offline standalone and packaged. But once online, only the clients pointer events gets called, but not for the host... I'm setting a unique virtual user index for each pawn that has the widget interaction component. AFAIK Pointer Indexes should only matter for each interaction component within the class, and not server wide

vital steeple Apr 4, 2017, 5:29 AM

#

i have an array of tech tree information (struct array), should I store it in gamestate or gamemode (or should i just replicate it to the server?) which way is most secure

#

ugh im so frustrated with this. i just cant seem to store data in a centralized place and have it properly replicate

#

ah to clarify, i can store and read initial data fine. i cant update it and hten have all the clients see it, despite multicasting or running on server and having clients read the gamestate which holds the struct array

twin juniper Apr 4, 2017, 8:23 AM

#

@vital steeple Is it only the struct or all vars? How large is the struct? BP or C++?

dusty sleet Apr 4, 2017, 8:46 AM

#

@vital steeple if you store anything in game mode it will only be writeable and readable by the server so if you want clients to know about it you cant put it there really. If the variable is replicated in Gamestate and you're setting it with the server, all clients should get the updates. They can cast to your gamestate and read the updated variable, but they wont be able to set it if they aren't the server.

tranquil yoke Apr 4, 2017, 11:55 AM

#

I am trying to attach an actor to my pawn and replicate this attachement.
I am calling "Request attach item to hand" in the pawn then I click on the actor.
"Request attach item to hand" is set to "Run on server" and calls "Attach actor to scene component" which is also set to "Run on server" but is called in the game mode.
The "Attach actor to scene component" just attaches the actor to my pawn.

It works if I am playing as the server but not if I am the client. Why?

#

📎 unknown.png

#

The events inside my Game Mode

📎 unknown.png

#

Does anyone have any idea why this is failing?

#

Should it be on multicast ?

tranquil yoke Apr 4, 2017, 12:28 PM

#

cries out for help

tranquil yoke Apr 4, 2017, 1:40 PM

#

Is my problem because the mesh is not owned by my pawn?
Is that why I cannot attach it to my pawn?

uncut pivot Apr 4, 2017, 1:45 PM

#

Game mode is server only

#

Maybe move it to game state

#

https://forums.unrealengine.com/showthread.php?7870-Does-GameMode-only-run-on-server

#

@tranquil yoke

wintry cove Apr 4, 2017, 1:47 PM

#

Hey, Any idea why Playerstate is invalid on Seamless travel?

📎 chrome_2017-04-04_15-19-25.png

uncut pivot Apr 4, 2017, 1:47 PM

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Wait

#

Im a dumb ass

tranquil yoke Apr 4, 2017, 1:47 PM

#

Yea although, I called RPC "run on server" in my pawn and then had the server call the game mode

uncut pivot Apr 4, 2017, 1:47 PM

#

Hmmm

tranquil yoke Apr 4, 2017, 1:47 PM

#

But I'm starting to think it's because of the ownership

wintry cove Apr 4, 2017, 1:47 PM

#

4.12 worked fine, just moved it to 4.15(which is a big update) and this is the only issue

uncut pivot Apr 4, 2017, 1:47 PM

#

Yeah but the game mode isnt on clients to attach the socket

wintry cove Apr 4, 2017, 1:47 PM

#

Happens after I come from the lobby

vital steeple Apr 4, 2017, 1:48 PM

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@twin juniper small, struct is 8 members, array will be 100ish, maybe 200. BP

#

@dusty sleet sounds like gamestate is the right choice, thank you!

tranquil yoke Apr 4, 2017, 1:49 PM

#

yea okay, well I also did try to just "run on server" inside the pawn. didn't work either 😦

uncut pivot Apr 4, 2017, 1:50 PM

#

Is the actor youre attaching

#

Replicated

#

I have an easy time doing such hard shit but this easy stuff man

vital steeple Apr 4, 2017, 1:51 PM

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ikr. some stuff is really easy but some of the simple stuff can get weird

tranquil yoke Apr 4, 2017, 1:51 PM

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Yes the actor is set to replicate.
It is easy stuff indeed but I don't know why it is failing

#

I am going to test this in a sec

📎 unknown.png

#

with the switch connected of course

uncut pivot Apr 4, 2017, 1:52 PM

#

You should never have to do a multicast to attach it

#

That leads to join in progress issues and such

#

The actor youre attaching should be repliacted

tranquil yoke Apr 4, 2017, 1:53 PM

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So I should only do "Run on server"?

uncut pivot Apr 4, 2017, 1:53 PM

#

Yes

void canopy Apr 4, 2017, 1:55 PM

#

Hey guys, I have a scenario. I have 2 clients connected to a dedicated server. I want to send a id from client 1 to client 2. The only difference I have between these two clients is one bool check which I'm setting in Game Instance class. Based on this I'm able to if from client 1 to client 2. Here is the follow of information. Client 1 get the ID. Client 1 call On Server Function to send ID to Server. Server calls multicast and send this id to both of the clients. On executing this multicast function I've added a check to see wether it is client 2 or not (with the use of bool check ). Client 2 receives the information and I'm able to debug it on his side. Here is the issue I'm getting on client 2 side. I'm losing my camera focus on client2. I checked the fucntion call, nowhere I'm setting player controller or character position or possesion funciton call back

wintry cove Apr 4, 2017, 1:55 PM

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So, when you have this issue(above written), and you change the lobby player state to the default one it seems to work

tranquil yoke Apr 4, 2017, 1:55 PM

#

I will compile this and give it a try and get back here with the results once I've tested it

uncut pivot Apr 4, 2017, 1:56 PM

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Kk and hmm weird @wintry cove

wintry cove Apr 4, 2017, 1:56 PM

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yeah that's rather weird

uncut pivot Apr 4, 2017, 1:56 PM

#

So @void canopy

#

You send data

#

And it becomes unpossessed?

void canopy Apr 4, 2017, 1:58 PM

#

yeah. though I havent called anything like that

#

let me post ss of blueprint

uncut pivot Apr 4, 2017, 1:58 PM

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And this happens everytime?

#

It might not be the sending data

#

If youre alt tabbing between game instances

void canopy Apr 4, 2017, 2:00 PM

#

Here I'm calling function to server and sending id value

📎 problem1.PNG

wintry cove Apr 4, 2017, 2:01 PM

#

The bool and integer need to be set AFTER the RunOnServer

#

not before

#

Now you're setting it on a client(if it was a client), and that won't replicate to the other clietns

#

Also you don't need to do Multicast there anymore

void canopy Apr 4, 2017, 2:01 PM

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This is a multicast function, where I'm checking a bool on game instance and based on that calling the function on the character of second client.

📎 problem2.PNG

#

All the functions are called in Playercontroller

wintry cove Apr 4, 2017, 2:02 PM

#

you can do a RepNotify on the Integer or bool and go from there

uncut pivot Apr 4, 2017, 2:02 PM

#

^

#

Maybe not everyone follows this advice

#

But i try to use as little multicast as possible

void canopy Apr 4, 2017, 2:03 PM

#

@uncut pivot I have this variable in playercontroller. And it doesn't get replicated in all the clients. So I thought of doing a multi cast.

uncut pivot Apr 4, 2017, 2:03 PM

#

So

#

You have it in the pc

#

And its not replicated

void canopy Apr 4, 2017, 2:04 PM

#

The variables I'm setting are local only. They aren't changing . Main value which I want to send is the Index Number. Which is getting called on server

#

Yeah this variable is on pc and not replicated. What possible solution you can think of ?

#

I need to send this id from one client to another .

uncut pivot Apr 4, 2017, 2:04 PM

#

Well yeah then you might have to

void canopy Apr 4, 2017, 2:05 PM

#

In a fast prototyping manner.

uncut pivot Apr 4, 2017, 2:05 PM

#

Or you could do a client rpc call

#

If you dont care about bandwidth

#

You could replicated with rep notify

#

And rep to owner only

void canopy Apr 4, 2017, 2:06 PM

#

@uncut pivot I can do replication, can you guide me where I should put this variable in ?

uncut pivot Apr 4, 2017, 2:06 PM

#

So click on the variable in the blueprint editor

#

Usually bottom left

void canopy Apr 4, 2017, 2:06 PM

#

Also one more thing, the method which I'm using is actually sending the data. But my bug is coming after that

brittle sinew Apr 4, 2017, 2:06 PM

#

This wouldn't work in the PlayerController either way...client 1 doesn't have client 2's PlayerController

void canopy Apr 4, 2017, 2:07 PM

#

My bug is I'm "Losing" player camera focus of the client 2.

#

My pawn is still sitting at the same place in client 2.

#

but my camera isn't focusing as I made that call. Although I'm getting all the values in my client system correct. But as I make this call, it seems I losses controll over pawn

brittle sinew Apr 4, 2017, 2:08 PM

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Yeah, it's trying to call a multicast on an object that doesn't exist clientside, that usually results in depossession

void canopy Apr 4, 2017, 2:09 PM

#

Ohky. That could be a issue. @brittle sinew how can i work around ? I have a id which is to be send from client 1 to client 2.

brittle sinew Apr 4, 2017, 2:10 PM

#

You would have to get client 2's PC on the server and send a client RPC to it if you still want to go the PlayerController route

worn nymph Apr 4, 2017, 2:10 PM

#

Why are you using player controller for the I'd why not use playerstate ?

void canopy Apr 4, 2017, 2:10 PM

#

And its not a continous change in the variable. It changes once and that time only I have to send notification to client 2 about this and call some fucntion on his side. Both are clients. Client 1 and client 2

wintry cove Apr 4, 2017, 2:10 PM

#

Solution on answerhub: https://answers.unrealengine.com/questions/584475/player-state-invalid-after-seamless-travel-causing.html#answer-584476

brittle sinew Apr 4, 2017, 2:11 PM

#

And yeah, I agree the PlayerController probably isn't the best place for this type of thing

void canopy Apr 4, 2017, 2:11 PM

#

@brittle sinew How to call a particular PC from Server in blueprint. Some pointers where to see.

brittle sinew Apr 4, 2017, 2:12 PM

#

Well, you would need some type of system that ties your function call into a certain PlayerController

#

You can't just choose a particular object with absolutely no info

worn nymph Apr 4, 2017, 2:13 PM

#

I would do this put the ID into playerstate . Set it to replicated . Then from the client you wish to do something with just cast to playerstate->get ID->do something

void canopy Apr 4, 2017, 2:13 PM

#

@worn nymph Can I access client 1 player state in client 2 ? In that way I can still update the value from client 1 and get it in client 2

#

@worn nymph how will I know playercontroller ID of client 1 in client 2 where I need to access player state of client 1.

#

I'

#

I'm looking into it @worn nymph , @brittle sinew and @uncut pivot will revert you guys as I find something.

tranquil yoke Apr 4, 2017, 2:32 PM

#

@uncut pivot It didn't work for me although, I may have found the issue and it may have been totally irrelevant to the RPC itself.

worn nymph Apr 4, 2017, 2:38 PM

#

@void canopy sorry I'm at work . Inside game state is an array of all the logged in players player states . So if you have two players logged in and want to get player 1 player state you cast to gamestate->getPlayerStateArray->getPlayerStateOne->get ID value

tranquil yoke Apr 4, 2017, 2:56 PM

#

Hmm I really don't know how to go about and debug this

vital steeple Apr 4, 2017, 3:05 PM

#

just in case anyone else runs into this: you cant update server variables through an RPC on a widget. you need to do it from a character. just spent two weeks wrestling with this. 😦

tranquil yoke Apr 4, 2017, 3:24 PM

#

Awesome sounds like a wonderful 2 weeks, if it's any comfort, I spend 3-4 weeks on a problem which in the end, I solved by removing a branch.

#

So throughout those 3-4 weeks I probably had countless of working solutions already

robust zephyr Apr 4, 2017, 3:29 PM

#

what would cause clients not getting a menu when running multiple clients through PIE?

vital steeple Apr 4, 2017, 3:30 PM

#

lol too much fun, eh simple? its a good feeling when you get it fixed though. these are lessons we will remember. post it to answer hub if you think itd save someone esle time! 😃

tranquil yoke Apr 4, 2017, 3:32 PM

#

Yea but I don't think my problem will help anyone. The was very specialised and none else got that code except for 1 person ;P
But I have a diff. problem now which I am having problems solving =(
I simply want to attach an actor to my pawn but it's not working

#

It works PERFECT IFFFF I am the server. But if I'm the client then it's not working

#

yea so I have identified WHAT the problem is but not where or why

#

Actually no I was wrong, doesn't seem to be that either -.-

#

Ok so I now know it is being attached properly, it is something else that's messed up

tranquil yoke Apr 4, 2017, 4:56 PM

#

For everyone who is interested in what my problem was, I have it solved now.
The thing is a bit complicated and I don't think you guys will encounter this problem.
I have a VR pawn with motion controllers.
I was trying to attach the actor to my motion controller, but the problem was, the motion controller's transform wasn't being replicated, therefor I couldn't see the actor moving either when I moved my hand. But the reason to why this was a bit difficult to debug is because my VR pawn which I have, does replicate the movements of the hands, but they are computed client-side so I am only sending the transforms of the motion controllers.
I did attempt to update the transform of the motion controllers but that resulted in a laggy motion.

My solution was:
Create 2 dummy spheres to represent left-hand and right-hand and in the RPC call for where I send the transforms of the motion controllers, I update the dummy spheres to respective transform.
And instead of attaching the actor to my motion controller, I attach it to my dummy sphere.
I also hide the dummy spheres so they are not visible ingame.

bitter veldt Apr 4, 2017, 9:34 PM

#

has anyone ever gotten steam multiplayer to work in their game?

slim holly Apr 4, 2017, 9:55 PM

#

yea, why?

#

well, at basic level

#

never tried the invite system

jolly siren Apr 4, 2017, 10:56 PM

#

hmm this is really strange but for some reason OnRep_PlayerState is not hit for late joiners sometimes. So Player1 joins, chooses character, spawns character. Player2 joins. At this point sometimes OnRep_PlayerState isn't hit for the second client joining.

#

Player1's character should exist as a simulated client on the late joining client

#

so I don't understand why it wouldn't get called sometimes

#

void AFPSCharacter::OnRep_PlayerState()
{
    Super::OnRep_PlayerState();

    UE_LOG(LogTemp, Error, TEXT("OnRep_PlayerState"));

    // [client] Call the BP implemented event to set the player's nametag
    PlayerStateReady();
}```

bitter veldt Apr 4, 2017, 11:06 PM

#

@slim holly I mean like sending someone a zip of my game

#

and them trying to connect to my server

twin juniper Apr 5, 2017, 12:10 AM

#

anyone know anything about this

#

http://i.imgur.com/rG4dSaK.png

#

for servers?

#

lol.

drowsy zodiac Apr 5, 2017, 1:43 AM

#

Is there a network profiling tool in UE4?

drowsy zodiac Apr 5, 2017, 1:59 AM

#

📎 unknown.png

#

found it

#

https://docs.unrealengine.com/latest/INT/Gameplay/Tools/NetworkProfiler/

Network Profiler

Tool for displaying network traffic and performance information captured at runtime.

#

very cool

twin juniper Apr 5, 2017, 3:07 AM

#

Hey how do i connect to my steam server?

#

open 127.0.0.1:port_number doesnt work

twin juniper Apr 5, 2017, 3:26 AM

#

do i have to use FindSession() lol

twin juniper Apr 5, 2017, 3:45 AM

#

http://i.imgur.com/GU7gf4B.png

#

someone explain this english?

#

Lmfao

#

"should really be define in this class, but need to address replication issues"

#

wtf does that mean

sterile plaza Apr 5, 2017, 4:04 AM

#

hello

lost inlet Apr 5, 2017, 8:08 AM

#

ah you made the mistake of using the steam online subsystem

#

which by default uses steam p2p sockets

#

and i didn't see an obvious way of disabling them last time i looked, i would rather use normal sockets for dedicated servers

thin stratus Apr 5, 2017, 8:36 AM

#

@Bdoom#1259 It means that the SessionName should be defined in the Class you are currently having open.
But it's currently defined in the PlayerState and just passed to this class.

lost inlet Apr 5, 2017, 8:36 AM

#

though i took a look, you can modify SteamNetDriver so it always pass throughs to UIpNetDriver instead, right now it only does that for LAN games

thin stratus Apr 5, 2017, 8:36 AM

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Aaaand I can't tag someone again

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DISCORD

lost inlet Apr 5, 2017, 8:37 AM

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though it would be a good idea to modify it so you can still use steam sockets when it makes sense, might be good for local servers so people don't have to forward their ports to play with their friends

thin stratus Apr 5, 2017, 8:38 AM

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Wouldn't it be possible to change that through config?

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The used NetDriver is defined there

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Wouldn't it work to just stick to the default one instead of changing it to steam?

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But then again, why would you? It should work even with the SteamNetDriver

lost inlet Apr 5, 2017, 8:42 AM

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there's an array of NetDriverDefinitions which is actuall an array

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so not sure how you pick an explicit one to use

thin stratus Apr 5, 2017, 8:45 AM

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Well you remove the others

lost inlet Apr 5, 2017, 8:45 AM

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and i'm pretty sure you would have to modify OnlineSessionInterfaceSteam.cpp so it can advertise online sessions by IP address

thin stratus Apr 5, 2017, 8:45 AM

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Probably yeah

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but why again would you need/want that?

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The DedicatedServer should work without that

lost inlet Apr 5, 2017, 8:45 AM

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because maybe if your game is multiplayer you want the master list to actually work

thin stratus Apr 5, 2017, 8:45 AM

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haha

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Good point

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But that's kinda "advanced" for most users

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The base line wants to get the Server running by default

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And it should be listed even without that change

lost inlet Apr 5, 2017, 8:46 AM

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we started modifying the steam oss for various things already so not a big deal for us

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since the default implementation is so incomplete

thin stratus Apr 5, 2017, 8:46 AM

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It certainly is

twin juniper Apr 5, 2017, 11:33 AM

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@thin stratus yeah well... why do all my servers show up as "Unreal Test!"

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http://i.imgur.com/ZVQUl4W.png

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Found it

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lol

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i want to change this shit tho

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Is there another way of replacing that without having to edit the engine code?

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ideally i'd like to be able to just name it "MyServer1", "MyServer2"...etc

lost inlet Apr 5, 2017, 12:15 PM

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i'd recommend copying it and making it your own plugin

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the default steamworks oss is in no state to be shipping in games

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it doesn't even authenticate players

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https://github.com/EpicGames/UnrealEngine/pull/2135 still pending

thin stratus Apr 5, 2017, 12:38 PM

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Just redefine it

jolly siren Apr 5, 2017, 1:02 PM

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In my game, when a player joins they are sent to a character selection screen. So a character isn't spawned for the player until they pick one. I have a nametag widget that displays the name of the player over his character's head. I hide those for enemy characters. However, sometimes late joiners aren't correctly hiding the nametag of enemies. The scenario is when an enemy character spawns before the second player joins. So then the second player joins and is replicated the first player's character and playerstate. I am calling the following from Character::OnRep_PlayerState. However, sometimes this is called BEFORE the second players PlayerController has a PlayerState. Therefore, the second player's playerstate is null (the one circled in red)

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📎 unknown.png

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A PlayerState is created for a PlayerController within PlayerController::InitializeComponents()

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So I need a way to call my logic after that is called for my player but also after OnRep_PlayerState for the existing plyaer

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hmm

twin juniper Apr 5, 2017, 1:14 PM

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So like

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Epic has a broken system? Is that what you are saying? @lost inlet

lost inlet Apr 5, 2017, 1:15 PM

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for steam, yes

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probably will be until epic ships a game on steam

jolly siren Apr 5, 2017, 1:15 PM

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yeah it's been broken for a long time

twin juniper Apr 5, 2017, 1:15 PM

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and there is no way to fix it?

jolly siren Apr 5, 2017, 1:15 PM

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Over a year since that PR was created lol

lost inlet Apr 5, 2017, 1:15 PM

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fork the plugin basically

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and fix it yourself

jolly siren Apr 5, 2017, 1:16 PM

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is your fork on github?

twin juniper Apr 5, 2017, 1:16 PM

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.-.

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that is by far the most retarded thing

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ive heard of

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basically that fork ive seen it b4

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its been broken for months?

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i think it was posted in like 2016

jolly siren Apr 5, 2017, 1:17 PM

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epic doesn't have a steam game so they don't care very much

lost inlet Apr 5, 2017, 1:18 PM

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our changes to the steam oss are proprietary, would have to ask my boss if we could ever release it. the steam oss in UE4 shipped broken

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since 4.0

jolly siren Apr 5, 2017, 1:18 PM

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ahh okay

twin juniper Apr 5, 2017, 1:19 PM

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lol.

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well

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i guess i should just scrap Steam?

granite jolt Apr 5, 2017, 1:20 PM

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broken? I mean it had issues over the time between 4.0 release and now, but we use it fine.

twin juniper Apr 5, 2017, 1:20 PM

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yea

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but isnt your stuff in house changes

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does the current vanilla version of 4.15 work?

jolly siren Apr 5, 2017, 1:21 PM

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it works. but it isn't really production ready

twin juniper Apr 5, 2017, 1:21 PM

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what do u mean

jolly siren Apr 5, 2017, 1:21 PM

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steam auth and things aren't working

twin juniper Apr 5, 2017, 1:21 PM

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I found this https://forums.unrealengine.com/showthread.php?69901-Advanced-Sessions-Plugin

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But, does that work for dedi's

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like, right now im registering my server in RegisterServer() in game session

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but thats in C++

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and that plugin looks mostly to be made for BPs

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nvm

twin juniper Apr 5, 2017, 1:53 PM

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Idk how to use that in dedi's

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lul

wise bridge Apr 5, 2017, 5:34 PM

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Hey guys, could anyone shed any light on why my custom player controller is not passing the connecting client's information to the server? is a networking n00b 😃

lost inlet Apr 5, 2017, 6:02 PM

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what information exactly?

jolly siren Apr 5, 2017, 6:25 PM

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@lost inlet have you experienced NumOpenPublicConnections not working?

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it doesn't seem to be updating for me in 4.15

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it used to work

wise bridge Apr 5, 2017, 6:26 PM

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what HMD the user is using @lost inlet 😃

lost inlet Apr 5, 2017, 6:27 PM

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not familar @jolly siren is it to do with servers showing 0 players even though players are on it?

jolly siren Apr 5, 2017, 6:27 PM

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yes

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it is used to show how many people are in the current session

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Data.CurrentPlayers = Data.MaxPlayers - SearchResult.Session.NumOpenPublicConnections;

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that is always giving me 0

lost inlet Apr 5, 2017, 6:29 PM

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not got round to fixing that yet

jolly siren Apr 5, 2017, 6:29 PM

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ahh okay

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I'll dig through the code

chrome bay Apr 5, 2017, 6:55 PM

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Slight OT: These are my fave kinda questions: https://forums.unrealengine.com/showthread.php?141591-Networking-Huge-packet-loss-and-replication-loop-(TArray-replication)

vital steeple Apr 5, 2017, 6:56 PM

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is it possible to have a non player owned actor update the server gamestate?

chrome bay Apr 5, 2017, 6:56 PM

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no

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If the actor you're trying to call an RPC on is replicated, you can call an RPC from a Player-owned actor and pass a pointer to that actor in

vital steeple Apr 5, 2017, 6:57 PM

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yeah so thats the only thing ive been able to get to work

chrome bay Apr 5, 2017, 6:57 PM

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But that object has to be replicated from the Server initially

vital steeple Apr 5, 2017, 6:57 PM

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but it seems liek you'd end up wiht a massive player character bp

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so for instance, if i have a lab taht researches a technology and i want to store those values in the server gamestate, i have to cram all that functionality into the player character

chrome bay Apr 5, 2017, 6:58 PM

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Ah well, in that case you'd do something differently

vital steeple Apr 5, 2017, 6:58 PM

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instead of going from lab actor -> server gamestate

chrome bay Apr 5, 2017, 6:59 PM

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IIRC, you can call RPC's from the GameState

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GameState, PlayerState, Player Controller and Player Pawn

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But what you would do is have a generic function in the player controller or wherever fits best saying "ResearchItem" - and the Server goes and researches that item, the clients update via replication.

vital steeple Apr 5, 2017, 7:00 PM

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so an event that calls the RPC that resides in the gamestate itself

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an event in the actor* that calls the rpc in the gamestate

chrome bay Apr 5, 2017, 7:01 PM

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In my case, where possible I try to run things in parrallel on a server and client. So for example if I want to open a chest when the player gets within a trigger box - I ONLY run the trigger box on the Server, and the chest is opened by the server. The chest updates it's "open" state via replication.

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Client may have to wait a few extra milliseconds, but it means the server had authority the whole time.

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Obviously that's not always possible ofc

vital steeple Apr 5, 2017, 7:01 PM

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yeah i mean thats what im trying to do with these "technologies" to make sure that none of it is really pulled from the player

chrome bay Apr 5, 2017, 7:01 PM

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So what i would do is

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Still keep all the research data etc in the GameState or wherever it belongs (The Server somehow needs to tell clients what they have / haven't researched etc.)

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Then have a Server RPC in the GameState that takes in the "type" of item you want to research, like an Enum or something

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The client could check locally if they're allowed to research that item before they send the RPC

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Then when the Server recieves that RPC, they run the check as well, then either do or don't research the item.

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Then through the magic of replication, update the client as to what happened

vital steeple Apr 5, 2017, 7:04 PM

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ok cool, i'll give that a shot 😃

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thank you for your help

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still wrapping my brain around replication, i think it'll be like that for a while

chrome bay Apr 5, 2017, 7:06 PM

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Yeah it takes some thought process for sure

vital steeple Apr 5, 2017, 7:10 PM

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yeah so it looks like there's no way of getting around having that building actor trigger from the player

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even putting the RPC in the gamestate, and a normal event in the building actor

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and having the building call the RPC in that gamestate, it still says no owning connection

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i guess im just confused as to why if no one owns it, the server doesnt

chrome bay Apr 5, 2017, 7:10 PM

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Oh that's interesting, I thought clients owned their gamestates

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Oh wait... actually that makes sense

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Split-Screen

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In fact it totally makes sense because Game States aren't created with an Owner, I think they're owned by the World

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So yeah, routing via the Player Controller or Pawn is the way to go

vital steeple Apr 5, 2017, 7:12 PM

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yeah the problem with that

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if the player disconnects, i assume that would stop anything that is looping

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so id have to put even more functionality in the gamestate, like the entire research process

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and JUST have hte player initiate (or cancel) the process

chrome bay Apr 5, 2017, 7:13 PM

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If they disconnect, then whatever is happening on the Server will still happen

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I.e. the Game State still exists server-side and will do whatever it was doing

twin juniper Apr 5, 2017, 7:13 PM

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my FindSessions() is failing

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lol

chrome bay Apr 5, 2017, 7:13 PM

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So if a player reconnects, they will get the gamestate back still

vital steeple Apr 5, 2017, 7:14 PM

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yeah, but it just means i have to put more functionality in the gamestate so that if a player disconnects, the building doesnt just stop researching (if the research process exists on the building actor)

chrome bay Apr 5, 2017, 7:14 PM

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You could still have all the research logic in the Lab Actor, but it would just only run on the Server. Then the Lab Actor updates the game state with it's state.

vital steeple Apr 5, 2017, 7:14 PM

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becuase youd be breaking that link (the player)

lost inlet Apr 5, 2017, 7:14 PM

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@twin juniper bug #57874512578 with the steam oss: heartbeating doesn't work properly and sometimes your server will drop off the master list

vital steeple Apr 5, 2017, 7:15 PM

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hrm i thought we established that we cant run it on the actor because no matter what, you have to run the RPC through the player character

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so say for instance if you have a 1 second loop on the lab

twin juniper Apr 5, 2017, 7:15 PM

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Im using this

vital steeple Apr 5, 2017, 7:15 PM

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and it nudges the player once a second saying "run this RPC"

twin juniper Apr 5, 2017, 7:15 PM

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https://forums.unrealengine.com/showthread.php?69901-Advanced-Sessions-Plugin/

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so whats the fix?

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there has to be a fix

chrome bay Apr 5, 2017, 7:16 PM

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Whatever happens, you still have to route the RPC via the player controller / character. If the Lab Actor is replicated (i.e, spawned by the server and therefore copied down to clients) - you can pass in the lab actors and say "do this with this actor"

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Obviously depends how your research system works ofc

vital steeple Apr 5, 2017, 7:17 PM

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hrm

chrome bay Apr 5, 2017, 7:17 PM

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@twin juniper download engine source and try to fix it :p AFAIK, nobody has tackled that one yet

twin juniper Apr 5, 2017, 7:17 PM

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.-.

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they should just disable steam then

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until they fix it

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epic should not have it in the engine

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iff it doesnt work

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should be disabled

chrome bay Apr 5, 2017, 7:18 PM

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They can't disable because most of it works, but they should definitely fix it. Unfortunately until they make a game via steam, that'll take an eternity

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Not a priority for them unfortunately.

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However, Steam OSS is a plugin technically - so you could just write a plugin and figure out what the problem is, then replace the Steam one

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Lot's of people complain about steam but never provide a repro case to Epic, so stuff goes unfixed. There's been a post on the forums about dedicated servers not working for ages now, but nobody provides any resources.

twin juniper Apr 5, 2017, 7:20 PM

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the purpose of a game engine

vital steeple Apr 5, 2017, 7:20 PM

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lol

twin juniper Apr 5, 2017, 7:20 PM

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is to not have to code systems like this

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lol

chrome bay Apr 5, 2017, 7:20 PM

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Unfortunately that's more of a theory than reality :p

vital steeple Apr 5, 2017, 7:20 PM

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i feel like thats probably pretty hard to do in real life

chrome bay Apr 5, 2017, 7:21 PM

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Even MORE annoyingly, people do fix it and don't provide their code

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That drives me insane

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They usually post on the forums too, "hey I fixed it in our studio". Then are never seen again. Presumably (hopefully) they have died a horrible death

#

Revealing some hidden irritations here

vital steeple Apr 5, 2017, 7:29 PM

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thats just irritating in general

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as someone who works in IT, it's super frustrating when someone comes up with a solution to a problem but neglect to post it, yet still find time to post "i fixed it"

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yeah @chrome bay it works perfectly fine through character BP, i'll just need to build the research process into the gamestate anyway. its probably for the best, to cut down on network activity spam. the gamestate was going to do all the logic behind the tech tree system anyway. it doesnt hurt to add a few more comment boxes <_<

fierce birch Apr 5, 2017, 8:26 PM

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@chrome bay they have their priorities in studios, if they make a quick'n'dirty fix, it would cost them time and money to clean it up to be able to share it with others

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which usually just means it'll not happen

#

but what's actually broken with advanced sessions?

#

I thought the whole idea of the plugin was to expose things not exposed in the engine by default

#

surely the guy actively maintaining it wouldn't maintain it if it were completely broken...

#

I mean, what would be the point in that?

hushed garnet Apr 5, 2017, 8:34 PM

#

has anyone got dedicated servers working with steam? if i install the client it will host fine, but without the client running it fails to initialize steam. I have googled my butt off to try and find a solution but really unable too. Im using BP to create the sessions and with the steam client installed all is good. If anyone has any insight or knows the fix please PM me.....been on this for 2 weeks now 😦

slim holly Apr 5, 2017, 8:48 PM

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did you check the steam api gets included?

#

that has been an issue in past engine versions

hushed garnet Apr 5, 2017, 9:08 PM

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tbh with you im not very experienced with the c++ side, my game is more or less 100% bp.....would you mind pointing me in the right direction?

slim holly Apr 5, 2017, 9:12 PM

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http://allarsblog.com/2016/02/26/BasicSteamIntegration/

Michael Allar's Blog

Enabling UE4's Steam Integration

Unreal Engine 4 Specialized Engineer that does Other Things too

#

at the bottom

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or, halfway

hushed garnet Apr 5, 2017, 9:16 PM

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oh yeah all that is done

#

im using advanced sessions to create the session too

#

it hosts without any issues if i boot the steam client up as well, it just wont find the api without the client running

twin juniper Apr 5, 2017, 10:43 PM

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steam cannot create session game already exists

raven holly Apr 6, 2017, 1:28 AM

#

Game states playerarray - does it remove actors when one leaves the game? I cant seem to get it working

#

It shows them all, even if they left the game

#

Sorted it. Just added another var which disables that player state when they leave

gaunt kestrel Apr 6, 2017, 4:54 AM

#

Hey everyone I'm having this replication "bug"

Here's the video of what happening and my blueprint for it. https://youtu.be/NnWCKQwgJgg

The attacks don't work

but the movement seems fine?

YouTube

James Nye

SkeletonAttackReplicationBug

▶ Play video

slim holly Apr 6, 2017, 5:52 AM

#

you're talking about replicating animations

#

you need to do multicast events that trigger montage

#

or something that tranfers "hey, need to play this animation"

#

allthou you have it set up with boolean, which should be sufficient in theory, but depending how fast the bool switches back it might never get replicated

gaunt kestrel Apr 6, 2017, 6:19 AM

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Well if I hold left mouse button it never plays

#

its weird cause I did his walking animations the same way

#

and they work fine

#

Huh, it doesnt see it as replicated in the actual character

📎 Huh.JPG