#multiplayer | Unreal Source | Page 391

proper olive Apr 24, 2018, 2:02 PM

#

"Owned by invoking client

Runs on invoking client

Runs on server

Runs on invoking client"

#

https://docs.unrealengine.com/en-us/Gameplay/Networking/Actors/RPCs

#

@sharp spire that's what I'm doing

#

the switch has authority makes sure it only spawns on server

#

and the clients are seeing the replicated state.... but they're not receiving the reference to the horse variable ifi t's the server who calls the function

sharp spire Apr 24, 2018, 2:03 PM

#

You’re probably right, I am new to multiplayer 😃

winged badger Apr 24, 2018, 2:03 PM

#

yeah, i think you misunderstood that part

sharp spire Apr 24, 2018, 2:03 PM

#

Is it an object?

winged badger Apr 24, 2018, 2:04 PM

#

if the FUNCTION is not replicated it runs on invoking client

proper olive Apr 24, 2018, 2:04 PM

#

"RPC invoked from a client"

#

how am I misunderstanding it? it's what happens

winged badger Apr 24, 2018, 2:05 PM

#

yes, i can't say that table is fortunately made

#

So if Actor calling the function is Owned by the local PC, and function is not replicated, it will run only locally

proper olive Apr 24, 2018, 2:05 PM

#

I've run into this like three different times. If you Spawn Actor on a Server RPC from Client, if you don't Switch Has Authority first, it will spawn on both server and client and the client sees 2

#

this has nothing to do with my issue so idk why you're debating me on this 😄

winged badger Apr 24, 2018, 2:06 PM

#

If the Actor calling the function is Owned by the local PC, and function is Multicast, it will run only locally

#

If the Actor calling the function is Owned by the local PC, and function is Server RPC, it will run on server only

#

If the Actor calling the function is Owned by the local PC, and function is Client RPC, it will run only locally

#

note: BeginPlay, Tick and few other functions are called on every copy of the Actor

#

so whatever is in there will execute separately on all clients and server

bitter oriole Apr 24, 2018, 2:11 PM

#

It's super effective to log where you're being executed in methods

#

The problem in networking is understanding which methods are run where in the UE4 framework

#

(and which of your code should run where, too)

proper olive Apr 24, 2018, 2:13 PM

#

yeah I moved all these settings off of the controller and onto RPCs on the character because controllers don't replicate

winged badger Apr 24, 2018, 2:13 PM

#

PlayerControllers do

#

AIControllers do not

bitter oriole Apr 24, 2018, 2:13 PM

#

There's a great chart somewhere with which framework classes execute where

winged badger Apr 24, 2018, 2:14 PM

#

that picture pinned on this channel?

proper olive Apr 24, 2018, 2:14 PM

#

No, player controllers do not replicate

bitter oriole Apr 24, 2018, 2:14 PM

#

lmao

winged badger Apr 24, 2018, 2:14 PM

#

if they didn't replicate, there would be no networking at all @proper olive

proper olive Apr 24, 2018, 2:15 PM

#

maybe itsj ust their location that doesn't replicate?

winged badger Apr 24, 2018, 2:15 PM

#

you could not send a single InputAction to the server

bitter oriole Apr 24, 2018, 2:15 PM

#

PCs are on the server and the owning client

proper olive Apr 24, 2018, 2:15 PM

#

right

bitter oriole Apr 24, 2018, 2:15 PM

#

They indeed don't replicate to other clients

proper olive Apr 24, 2018, 2:15 PM

#

not other clients

#

ok thats what I meant 😃 thanks

bitter oriole Apr 24, 2018, 2:15 PM

#

But they replicate allright

proper olive Apr 24, 2018, 2:15 PM

#

alright*

#

😉

bitter oriole Apr 24, 2018, 2:15 PM

#

Sure, not a native speaker, thanks for being accurate

proper olive Apr 24, 2018, 2:15 PM

#

😄

#

it's a common mispelling

#

always glad to help

#

that's like "a lot" and "allot"... I just get triggered and have to correct the whole world 😇

#

hmm so it's not spawning double actors like I thought

#

but it definitely happens now and then so next time I find it I'll try to track it down and share here

#

maybe you can help me fix it 😄

#

but nevertheless taking out the Switch Has Authority didn't fix muh problem

#

📎 unknown.png

#

only when the server does it at run time. RepNotify on client login works perfectly! Sooooo weird

#

is it maybe because it's ALREADY set from RPC and therefor not running the RepNotify code?

#

HEY it';s sort of working now!!

#

📎 unknown.png

#

switched it up to this:

#

📎 unknown.png

#

so funny, in the same conditions as before (clients seeing server do it at run-time), it's running the Attach to Actor code, the Set Relative Location and Rotation node, and he's moving around with the horse, but it won't do the Attach to Component node

#

and RepNotify from client to client isn't working, although doing it at Run-Time IS working for clients seeing other clients

#

📎 unknown.png

#

^ RepNotify on second client

#

clients seeing each other at run-time:

#

📎 unknown.png

#

so it's basically opposites - Rep Notify works from Server but not Clients (to other clients), but doing it at runtime works from Clients but not from Server (to other clients)

#

Server sees everything correct all the time of course

bitter oriole Apr 24, 2018, 2:34 PM

#

@proper olive rep notify is expected to never pop from a client-side change

#

If that's what you're saying

proper olive Apr 24, 2018, 2:35 PM

#

it is running from client to client

#

it's not running just this one node from server to client

#

o no wait

bitter oriole Apr 24, 2018, 2:35 PM

#

rep notify is only from server to client

proper olive Apr 24, 2018, 2:35 PM

#

well actually

#

it's running at runtime from client to server to client

#

but at login yeah clients arent seeing the repnotify of other clients

bitter oriole Apr 24, 2018, 2:35 PM

#

client to server is RPC, server to client is repnotify

proper olive Apr 24, 2018, 2:35 PM

#

keep in mind I've done rep notify and multicast foir a bajillion other things

#

hair color, shirt color, animations, swimming, etc

#

so it's just this actor reference that's bugging out

#

bugging me* out 😄

#

I didn't do replication for swimming yet nevermind 😄 ok I did it for holding and dropping and modular building houses and stuff 😄 that was complicated

bitter oriole Apr 24, 2018, 2:38 PM

#

Just keep it simple, log stuff, debug stuff, be sure to run in separate game instances (PIE for networking has some pitfalls)

proper olive Apr 24, 2018, 2:38 PM

#

what kinda pitfalls?

#

that would be good to know

#

like how it detects mouse clicks from other windows sometimes? 😉

bitter oriole Apr 24, 2018, 2:39 PM

#

Running in PIE makes it hard to log stuff to logs or the screen and know which of the server or the client it is

proper olive Apr 24, 2018, 2:39 PM

#

hey I did it!

#

and you're gonna HATE how I did it! 😄

#

📎 unknown.png

bitter oriole Apr 24, 2018, 2:39 PM

#

If it works, it works

proper olive Apr 24, 2018, 2:40 PM

#

no really you're gonna throw me overboard for this one 😄

bitter oriole Apr 24, 2018, 2:40 PM

#

thinking you overestimate my interest in your problems here :p

proper olive Apr 24, 2018, 2:41 PM

#

📎 unknown.png

#

forgot to finish up there with the other false

#

but yeah 😄 that worked for clients seeing the server mount up at run-time, gotta test RepNotify now

#

lol didn't even plug in the boolean branch

#

but yeah just forcing the code to wait until the server replicated actor value is valid before continuing with the attachment

#

and moving forward with a negative if it's not supposed to be waiting for an actor, hopefully

thin stratus Apr 24, 2018, 2:57 PM

#

:P You don't want to do what you are doing in that screenshot

#

Even if it works, you don't want that, trust me

proper olive Apr 24, 2018, 2:57 PM

#

because of the loop?

thin stratus Apr 24, 2018, 2:57 PM

#

📎 unknown.png

proper olive Apr 24, 2018, 2:57 PM

#

yeah

thin stratus Apr 24, 2018, 2:57 PM

#

UE4 has clear methods of handling this

#

So make use of them

proper olive Apr 24, 2018, 2:57 PM

#

well now that we know that fixes the problem (the actor isn't valid until some delay)

#

what's a better way to fix it?

#

whats the method? 😄

thin stratus Apr 24, 2018, 2:58 PM

#

Is that on the Server or Client?

proper olive Apr 24, 2018, 2:58 PM

#

I'm still very noob

#

that's the client one, I might not need it on the server RPC but I put it there too

#

I haven't tried cutting away to see how much is redundant yet

#

just got it working

thin stratus Apr 24, 2018, 2:58 PM

#

If you want to do something based on a Variable being replicated, use RepNotify

proper olive Apr 24, 2018, 2:58 PM

#

I am using Rep Notify

thin stratus Apr 24, 2018, 2:59 PM

#

Or, if it's a fire and forget thing, just an RPC

proper olive Apr 24, 2018, 2:59 PM

#

I'll show you the problem 1 sec

thin stratus Apr 24, 2018, 2:59 PM

#

You are using it on the Boolean

#

If multiple variables need to arrive at the same time, pack them into a Struct

proper olive Apr 24, 2018, 2:59 PM

#

this is the code running on my Rep Notify

#

https://cdn.discordapp.com/attachments/221799385611239424/438329968066297856/unknown.png

#

it's not reading the Actor variable on Clients when the Server sets it for them

#

that Horse variable

thin stratus Apr 24, 2018, 3:00 PM

#

You are trying to sync multiple variables

#

I assume "RidingHorse" is a boolean?

proper olive Apr 24, 2018, 3:00 PM

#

yeah

thin stratus Apr 24, 2018, 3:00 PM

#

If you 100% need that boolean together with the Reference, then use a Struct

proper olive Apr 24, 2018, 3:00 PM

#

ooooh

thin stratus Apr 24, 2018, 3:00 PM

#

Make one with a Horse Ref and a Boolean

#

And use that with RepNotify

proper olive Apr 24, 2018, 3:00 PM

#

and when it repnotifys it'll carry the Actor reference with it?

#

that's what I was looking for 😄 😄 😄

thin stratus Apr 24, 2018, 3:01 PM

#

Well, it's a struct

#

It will carry all its parameters with it

proper olive Apr 24, 2018, 3:01 PM

#

makes sense to me

#

yaaay I'll try it out

thin stratus Apr 24, 2018, 3:01 PM

#

A Vector is also a struct

#

Thing is, do you need the boolean like this?

proper olive Apr 24, 2018, 3:01 PM

#

oooh

thin stratus Apr 24, 2018, 3:01 PM

#

You could just say "if Horse ref is invalid -> not riding a horse"

proper olive Apr 24, 2018, 3:01 PM

#

legit you can use vectors just like in mats?

#

I hadn't realized that 😄

thin stratus Apr 24, 2018, 3:02 PM

#

Forget about the vectors right now. That was just an example of a struct firing repnotify

proper olive Apr 24, 2018, 3:02 PM

#

can't store an actor variable in a vector tho 😉

#

haha

#

I hear ya

thin stratus Apr 24, 2018, 3:02 PM

#

Thing is, do you need bRidingHorse at that point?

#

As far as I see

#

You are setting the Horse

proper olive Apr 24, 2018, 3:02 PM

#

I could just put all this on the Horse Rep Notify code?

thin stratus Apr 24, 2018, 3:02 PM

#

So why not just using RepNotify on the Horse

#

And checking if that is valid

proper olive Apr 24, 2018, 3:02 PM

#

dernit

#

with your thinking

#

😃 where were you an hour ago 😉 jk

thin stratus Apr 24, 2018, 3:02 PM

#

That obv only works if you set the Horse variable to nothing

#

When you don't ride it

proper olive Apr 24, 2018, 3:03 PM

#

right

#

I'm gonna save this backup and try those two ideas

thin stratus Apr 24, 2018, 3:03 PM

#

Sure

proper olive Apr 24, 2018, 3:03 PM

#

reeeeally appreciate it, cutting to it!

#

thanks man

twin juniper Apr 24, 2018, 3:04 PM

#

I've got a problem lads

#

been killing myself over it

#

it's about dying/respawning/damage/whatever

#

if I shoot the server as the client, the server dies

#

but if I shoot the client as the server, I die

#

📎 unknown.png

#

📎 unknown.png

#

moreover, when I have 1 server and 2 clients, if client#2 kills client#1, the server dies

proper olive Apr 24, 2018, 3:06 PM

#

I never use Get Player Controller Index 0 in Multiplayter tho I have seen a streamer use it, he was in C and I had no clue

#

but that might be it?

#

that returns self basically

twin juniper Apr 24, 2018, 3:06 PM

#

I've tried on two different machines to make sure

#

same thing happens

#

the server gets killed every time

proper olive Apr 24, 2018, 3:06 PM

#

so when you run this as server, you're Dieing yourself

#

I thinj

#

think

twin juniper Apr 24, 2018, 3:07 PM

#

yeah

#

if I kill anyone as server, the Die function runs for me, not for the killed client

proper olive Apr 24, 2018, 3:07 PM

#

what BP are you running Die on?

twin juniper Apr 24, 2018, 3:07 PM

#

the Pawn

proper olive Apr 24, 2018, 3:07 PM

#

just Get controller instead

#

instead of Index 0

twin juniper Apr 24, 2018, 3:08 PM

#

okay, let me try

#

holy moly

#

how did I miss that

#

but, why?

#

it works, but I don't understand why

proper olive Apr 24, 2018, 3:10 PM

#

because the Player Controller Index isn't really meant for multiplayer unless you know exactly how many players there are (liek a 4 person game)

twin juniper Apr 24, 2018, 3:11 PM

#

is it because of the index? that it's always 0 right?

#

aha, gotcha

proper olive Apr 24, 2018, 3:11 PM

#

Get Controller returns the controller of the pawn in question

twin juniper Apr 24, 2018, 3:11 PM

#

great!

#

you just saved me a few hours of headbashing

#

😄

proper olive Apr 24, 2018, 3:11 PM

#

😄 yaaay

#

😇

#

I think the Index is meant for split screen multiplayer?

#

i.e. non-networked

twin juniper Apr 24, 2018, 3:13 PM

#

might be

proper olive Apr 24, 2018, 3:17 PM

#

it's my dream to make it so you can play the lute while sitting on a chair in a carriage driven by a horse onto a boat on the ocean

#

in multiplayer

#

I won't rest until it's complete 😂

twin juniper Apr 24, 2018, 3:18 PM

#

hahaha

#

should be doable

#

😄

proper olive Apr 24, 2018, 3:18 PM

#

so far I got sitting on a horse on the boat in the ocean, and I kinda technically sort of have a vehicle in the game so I'm basically there

twin juniper Apr 24, 2018, 3:18 PM

#

GOTY

bitter oriole Apr 24, 2018, 3:51 PM

#

Sorry, that'll be Subnautica for 2018

#

Try again next year.

proper olive Apr 24, 2018, 6:35 PM

#

Took a break, tried using the Horse actor variable's RepNotify graph instead of the Bool, works perfectly 😄 thanks @thin stratus

#

📎 unknown.png

thin stratus Apr 24, 2018, 6:35 PM

#

Yus

proper olive Apr 24, 2018, 6:36 PM

#

works on the repnotifys and on the server doing it, basically all conditions until proven otherwise 😄

#

gotta get rid of those capsule shadows tho... they look so bad (or maybe there's a way to avoid self-shadowing)... that's for another channel tho 😄

jolly siren Apr 24, 2018, 6:57 PM

#

ugh I still haven't managed to get session player count to actually update

sharp spire Apr 24, 2018, 7:00 PM

#

Does a rep notify update for everyone? Or not when the variable is modified on a multicast ?

#

Or only when the variable is modified on a multicast*

jolly siren Apr 24, 2018, 7:04 PM

#

Replicated properties should be modified on the server

#

And then the rep notify will be called on any client that the property is set to replicate to

#

@sharp spire ^

#

Okay, shouldn't calling UpdateSessionJoinability within GM::PostLogin and GM::Logout keep the player count correct?

#

My session player count just remains at 0

thin stratus Apr 24, 2018, 7:07 PM

#

On Steam?

jolly siren Apr 24, 2018, 7:07 PM

#

yes

thin stratus Apr 24, 2018, 7:07 PM

#

Well, usually a Player that joins a session should cause an update on it

#

Idk

jolly siren Apr 24, 2018, 7:07 PM

#

Yeah, that's what I thought calling UpdateSessionJoinability would do

thin stratus Apr 24, 2018, 7:08 PM

#

Dedi or Listen?

jolly siren Apr 24, 2018, 7:08 PM

#

dedi

thin stratus Apr 24, 2018, 7:09 PM

#

Hm

#

I don't see them modifying that

#

JoinSession calls "JoinInternetSession"

jolly siren Apr 24, 2018, 7:11 PM

#

Right, it doesn't work automatically. Trying to figure out what I need to do to get it working

#

Someone must have gotten this to work 😵

#

@fleet sluice did you run into this when you made your uworks server browser?

thin stratus Apr 24, 2018, 7:17 PM

#

Well you COULD use a custom setting on the session for it

#

And update that

#

Super::PostLogin(NewPlayer);
 
 UWorld* const World = GetWorld();
 if (World)
 {
     AGameModeBase* const Game = World->GetAuthGameMode();
     if (Game)
     {
         if (Game->GameSession)
         {
             FJoinabilitySettings OutSettings;
             Game->GameSession->GetSessionJoinability(GameSessionName, OutSettings);
 
             Game->GameSession->UpdateSessionJoinability(GameSessionName,
                 OutSettings.bPublicSearchable, OutSettings.bAllowInvites, 
                 OutSettings.bJoinViaPresence, OutSettings.bJoinViaPresenceFriendsOnly);
         }
     }
 }

jolly siren Apr 24, 2018, 7:18 PM

#

right, that is from the answerhub post

#

I essentially did that

thin stratus Apr 24, 2018, 7:18 PM

#

Correct

jolly siren Apr 24, 2018, 7:18 PM

#

and it didn't work

#

UT does the same thing

#

void AFPSGameMode::UpdatePlayerSessionInfo()
{
    if (GameSession)
    {
        // Get the current join settings
        FJoinabilitySettings JoinSettings;
        GameSession->GetSessionJoinability(GameSessionName, JoinSettings);

        // Update the session joinability settings since the player count has changed
        GameSession->UpdateSessionJoinability(GameSessionName, JoinSettings.bPublicSearchable, JoinSettings.bAllowInvites, JoinSettings.bJoinViaPresence, JoinSettings.bJoinViaPresenceFriendsOnly);
    }
}```

thin stratus Apr 24, 2018, 7:19 PM

#

Does it return 0 or 1 (playercount)

jolly siren Apr 24, 2018, 7:19 PM

#

And I call UpdatePlayerSessionInfo from GM::GenericPlayerInitialization and GM::Logout

thin stratus Apr 24, 2018, 7:20 PM

#

void UOnlineEngineInterfaceImpl::UpdateSessionJoinability(UWorld* World, FName SessionName, bool bPublicSearchable, bool bAllowInvites, bool bJoinViaPresence, bool bJoinViaPresenceFriendsOnly)
{
    IOnlineSessionPtr SessionInt = Online::GetSessionInterface(World);
    if (SessionInt.IsValid())
    {
        FOnlineSessionSettings* SessionSettings = SessionInt->GetSessionSettings(SessionName);
        if (SessionSettings != nullptr)
        {
            SessionSettings->bShouldAdvertise = bPublicSearchable;
            SessionSettings->bAllowInvites = bAllowInvites;
            SessionSettings->bAllowJoinViaPresence = bJoinViaPresence && !bJoinViaPresenceFriendsOnly;
            SessionSettings->bAllowJoinViaPresenceFriendsOnly = bJoinViaPresenceFriendsOnly;
            SessionInt->UpdateSession(SessionName, *SessionSettings, true);
        }
    }
}

#

That's what it calls

jolly siren Apr 24, 2018, 7:20 PM

#

Right, I dug into that and I don't even see anywhere that it updates the player count

#

even though the answerhub said it fixes it

#

and UT uses it too

#

void AUTGameMode::UpdatePlayersPresence()
{
    bool bAllowJoin = GameSession ? (NumPlayers < GameSession->MaxPlayers) : false;

    AUTGameSession* UTGameSession = Cast<AUTGameSession>(GameSession);
    bool bNoJoinInProgress = UTGameSession ? UTGameSession->bNoJoinInProgress : false;

    bool bAllowInvites = !bPrivateMatch && (!bNoJoinInProgress || !UTGameState->HasMatchStarted());
    bool bAllowJoinInProgress = !bNoJoinInProgress || !UTGameState->HasMatchStarted();

    UE_LOG(UT,Verbose,TEXT("UpdatePlayersPresence: AllowJoin: %i %i %i"), bAllowJoin, bAllowInvites, bAllowJoinInProgress);

    if (GameSession)
    {
        const auto OnlineSub = IOnlineSubsystem::Get();
        if (OnlineSub)
        {
            const auto SessionInterface = OnlineSub->GetSessionInterface();
            if (SessionInterface.IsValid())
            {
                EOnlineSessionState::Type State = SessionInterface->GetSessionState(GameSessionName);
                if (State == EOnlineSessionState::Pending ||
                    State == EOnlineSessionState::Starting ||
                    State == EOnlineSessionState::InProgress)
                {
                    GameSession->UpdateSessionJoinability(GameSessionName, true, bAllowInvites, true, false);
                }
            }
        }
    }


    UTGameState->bRestrictPartyJoin =  !bAllowJoinInProgress;
    FString PresenceString = FText::Format(NSLOCTEXT("UTGameMode","PlayingPresenceFormatStr","Playing {0} on {1}"), DisplayName, FText::FromString(*GetWorld()->GetMapName())).ToString();
    for( FConstControllerIterator Iterator = GetWorld()->GetControllerIterator(); Iterator; ++Iterator )
    {
        AUTPlayerController* Controller = Cast<AUTPlayerController>(*Iterator);
        if (Controller)
        {
            Controller->ClientSetPresence(PresenceString, bAllowInvites, bAllowJoinInProgress, bAllowJoinInProgress, false);
        }
    }
}```

thin stratus Apr 24, 2018, 7:23 PM

#

https://github.com/EpicGames/UnrealEngine/blob/8e4560b8c22b309e73ff0ce90377742c3dfe13cc/Engine/Plugins/Online/OnlineSubsystemSteam/Source/Private/OnlineSessionAsyncServerSteam.cpp#L144

#

SteamGameServerPtr->SetPasswordProtected(false);

#

FFS

jolly siren Apr 24, 2018, 7:23 PM

#

lol

#

oooh it has a region, I've been wanting to expose server location to the browser

thin stratus Apr 24, 2018, 7:25 PM

#

Still not seeing it updating the actual usercount

timid pendant Apr 24, 2018, 7:26 PM

#

@thin stratus Hi how can i get the "?name=" string to be used in umg from this function you showed me yesterday. Would It be the Get Player Name function thats in the engine already/ // Client travel to the server
FString ConnectString;
if (SessionInterface->GetResolvedConnectString(GameSessionName, ConnectString) )
{
UBaseGameInstance* GameInstance = Cast<UBaseGameInstance>(GetGameInstance());
ConnectString += FString("?name=") + GameInstance->playerusername;
ClientTravel(ConnectString, TRAVEL_Absolute);
}

thin stratus Apr 24, 2018, 7:26 PM

#

Should be yes

#

name is grabbed internally from the Engine

timid pendant Apr 24, 2018, 7:27 PM

#

Alright thank you

thin stratus Apr 24, 2018, 7:29 PM

#

@jolly siren Hm

#

NewSession->NumOpenPublicConnections = ServerDetails->m_nMaxPlayers - ServerDetails->m_nPlayers;

jolly siren Apr 24, 2018, 7:30 PM

#

right, it gets it from steam

thin stratus Apr 24, 2018, 7:30 PM

#

So that happens in "ParseSearchResult"

jolly siren Apr 24, 2018, 7:30 PM

#

and m_nPlayers is what is always 0

#

so it always return NumOpenPublicConnections as 10 for me

#

since that is my max players

#

and then I display SearchResult.Session.SessionSettings.NumPublicConnections - SearchResult.Session.NumOpenPublicConnections

#

which is always 0

thin stratus Apr 24, 2018, 7:32 PM

#

Yeah

#

So the thing is

#

gameserveritem_t* Server = SteamMatchmakingServersPtr->GetServerDetails(Request, iServer);

#

This is where it ends

#

That's the actual SteamAPI

#

So it should be available

#

Means that it's really never updated

jolly siren Apr 24, 2018, 7:33 PM

#

I thought that there should be a way to tell steam that a player has joined or left

#

like how UpdateSession has the bShouldRefreshOnlineData param

#

bool FOnlineSessionSteam::UpdateSession(FName SessionName, FOnlineSessionSettings& UpdatedSessionSettings, bool bShouldRefreshOnlineData)

#

which uses FOnlineAsyncTaskSteamUpdateServer

#

which has it's own tick that calls that UpdatePublishedSettings function you linked

thin stratus Apr 24, 2018, 7:36 PM

#

Well seems like it's fully commented out

#

https://github.com/EpicGames/UnrealEngine/blob/8e4560b8c22b309e73ff0ce90377742c3dfe13cc/Engine/Plugins/Online/OnlineSubsystemSteam/Source/Private/OnlineSessionAsyncServerSteam.cpp#L620

jolly siren Apr 24, 2018, 7:36 PM

#

wow

thin stratus Apr 24, 2018, 7:37 PM

#

https://github.com/EpicGames/UnrealEngine/blob/8e4560b8c22b309e73ff0ce90377742c3dfe13cc/Engine/Plugins/Online/OnlineSubsystemSteam/Source/Private/OnlineSessionAsyncServerSteam.cpp#L134

#

So even if you update them

#

They would probalby not get set?

jolly siren Apr 24, 2018, 7:38 PM

#

It seems that way

thin stratus Apr 24, 2018, 7:38 PM

#

So your best bet is to create your own setting

#

And use/update that

jolly siren Apr 24, 2018, 7:39 PM

#

Does UT use an ootb version of unreal?

#

A custom session setting? Okay, yeah I'll have to look into how to do that

thin stratus Apr 24, 2018, 7:48 PM

#

It's pretty simple

#

I can show you some code in a second if you want @jolly siren

jolly siren Apr 24, 2018, 7:49 PM

#

That would be great cedric ❤

thin stratus Apr 24, 2018, 7:52 PM

#

Okay lemme check what project had that

#

HostSettings = MakeShareable(new FOnlineSessionSettings());
HostSettings->Set(SETTING_GAMEMODE, GameType, EOnlineDataAdvertisementType::ViaOnlineService);
HostSettings->Set(SETTING_MAPNAME, MapName, EOnlineDataAdvertisementType::ViaOnlineService);
HostSettings->Set(SETTING_SERVERNAME, ServerName, EOnlineDataAdvertisementType::ViaOnlineService);
HostSettings->Set(SETTING_INVADED, (int32)ETPInvadeState::TP_ALONE, EOnlineDataAdvertisementType::ViaOnlineService);

OnCreateSessionCompleteDelegateHandle = Session->AddOnCreateSessionCompleteDelegate_Handle(OnCreateSessionCompleteDelegate);

return Session->CreateSession(*CurrentSessionParams.UserId, InSessionName, *HostSettings);

#

Lower half

#

Some of the settings are already available

#

Others can be defined like this

#define SETTING_SERVERNAME FName(TEXT("ServerName"))
#define SETTING_INVADED FName(TEXT("Invaded"))

jolly siren Apr 24, 2018, 7:55 PM

#

So SETTING_SERVERNAME and SETTING_INVADED are custom

thin stratus Apr 24, 2018, 7:56 PM

#

Yeah that code was for a system like Dark Souls

#

Where you can invade players

jolly siren Apr 24, 2018, 7:56 PM

#

ahh nice, that's cool

thin stratus Apr 24, 2018, 7:56 PM

#

And then, to retrieve the session settings

#

for (int32 SearchIdx = 0; SearchIdx < SearchSettings->SearchResults.Num(); SearchIdx++)
{
    const FOnlineSessionSearchResult& SearchResult = SearchSettings->SearchResults[SearchIdx];

    FString GameModeName;
    SearchResult.Session.SessionSettings.Get(SETTING_GAMEMODE, GameModeName);

    int32 InvadeStateInt;
    SearchResult.Session.SessionSettings.Get(SETTING_INVADED, InvadeStateInt);
    ETPInvadeState InvadeState = static_cast<ETPInvadeState>(InvadeStateInt);
}

jolly siren Apr 24, 2018, 7:58 PM

#

Okay, that makes sense. So the .Get call

thin stratus Apr 24, 2018, 7:58 PM

#

Removed some of the code

#

Cause it's not really that important to see the Get 50 times :D

jolly siren Apr 24, 2018, 7:58 PM

#

So, I would need to do a .Get and a .Set to increment the number of players in PostLogin?

#

And the same to decrement in Logout

thin stratus Apr 24, 2018, 7:59 PM

#

You would update like this:

#

if (Session.IsValid())
{
     HostSettings = MakeShareable(new FOnlineSessionSettings());
     HostSettings->Set(SETTING_INVADED, (int32)NewInvadeState, EOnlineDataAdvertisementType::ViaOnlineService);

     OnUpdateSessionCompleteDelegateHandle = Session->AddOnUpdateSessionCompleteDelegate_Handle(OnUpdateSessionCompleteDelegate);
     return Session->UpdateSession(InSessionName, *HostSettings);
}

#

Could probably pass true to UpdateSession

#

However worked without for me

#

Subsystem code is old, cause the project is not from 4.19

#

So can basically scrap that

#

You can probably grab the existing settings

#

And just update one

jolly siren Apr 24, 2018, 8:01 PM

#

I don't see one for player count, so probably makes sense to create a custom one

#

There is one for region tho

#

SETTING_REGION

#

FString

thin stratus Apr 24, 2018, 8:02 PM

#

Yeah

#

Yeah the code is older

#

4.12 or so idk

#

But the Set and Get stays the same

#

Will remove the other code from it to make it easier to read now

jolly siren Apr 24, 2018, 8:03 PM

#

Right, that makes sense. Is the SessionCompleteDelegate a requirement?

thin stratus Apr 24, 2018, 8:05 PM

#

Don't think so

#

But can't hurt

#

I'm not doing anything in the UpdateComplete

#

Despite clearing HostSettings or so

#

But it was also a tutoring project. meant to show more than needed

jolly siren Apr 24, 2018, 8:08 PM

#

ahh okay

#

where are you calling that last paste of code again?

thin stratus Apr 24, 2018, 8:08 PM

#

In my own UpdateSession Function

#

For that project it was placed in the GameInstance

#

However you could probably move it to GameSession for your case

#

Or where ever you have your Session functions

#

I tend to created the callback proxies for all of them by now

#

And call the code in BPs

jolly siren Apr 24, 2018, 8:09 PM

#

ahh okay cool, that makes sense

thin stratus Apr 24, 2018, 8:09 PM

#

If you aren't familiar with them, check the FriendList stuff I did for Epic Games

jolly siren Apr 24, 2018, 8:10 PM

#

I'm debating on creating a new project just to get this server browser stuff working properly because it sucks having to wait 2 hours to build every time I want to test something.

thin stratus Apr 24, 2018, 8:10 PM

#

Or just read how the default ones are done

#

Sometimes that helps

#

You can put all your code into a Plugin in that other project

#

And simply move it over then

#

Did that when I created some Beacon stuff

#

Cause Fresh Project feels better

#

:D

jolly siren Apr 24, 2018, 8:11 PM

#

Right 😆

#

Okay cool, I'll see if I can get everything on my wishlist working.

customizable server name
gamemode and map name updating after servertravel
location/region
ip:port

#

Thanks for the help cedric ❤

thin stratus Apr 24, 2018, 8:14 PM

#

Not sure if IP:PORT for steam works

#

They actively removed that from the Session results

#

So that would also need to be an extra setting

#

And yeah, no biggie

jolly siren Apr 24, 2018, 8:14 PM

#

Ahh okay, that is the lowest priority. If I can only get location/region that would be enough for now.

#

oh one last question. so none of this will show up on the server browser that is on the steam client itself?

thin stratus Apr 24, 2018, 8:15 PM

#

Some of it might

#

📎 unknown.png

#

But I mean

jolly siren Apr 24, 2018, 8:16 PM

#

okay, it would be weird to always see 0 players there

thin stratus Apr 24, 2018, 8:16 PM

#

It's limited anyway, isn't it?

jolly siren Apr 24, 2018, 8:16 PM

#

idk if anyone uses it anymore tho

thin stratus Apr 24, 2018, 8:16 PM

#

No idea

jolly siren Apr 24, 2018, 8:16 PM

#

I was mostly worried about the player count

jolly siren Apr 24, 2018, 8:32 PM

#

Looks like UT populations region from a cmd line arg

#

https://github.com/EpicGames/UnrealTournament/blob/ac3771c0bcbc28ed3bfba18cb9c789c38323d783/UnrealTournament/Source/UnrealTournament/Private/Online/UTOnlineGameSettings.cpp#L29

#

would be cool to automate that or country

jolly siren Apr 24, 2018, 9:04 PM

#

UT has a timer that updates it's session settings every minute

#

GetWorldTimerManager().SetTimer(TempHandle, this, &AUTGameMode::UpdateOnlineServer, 60.0f*GetActorTimeDilation());

#

ghetto

thin stratus Apr 24, 2018, 9:07 PM

#

lol

#

UT also calls their PostMatch stuff twice

#

So wouldn't focus too much on their stuff

jolly siren Apr 24, 2018, 9:07 PM

#

yeah, there are so many places that I'm like what is going on

thin stratus Apr 24, 2018, 9:08 PM

#

Yeah, I wonder why they aren't causing issues with that

#

They call "HandlePostMatch" in a timer to delay it

#

But call "EndMatch" right after

#

Mabye I lost track, but EndMatch results in HandlePostMatch

#

So they call that twice :D

jolly siren Apr 24, 2018, 9:09 PM

#

yeah that's strange

#

my favorite bit of code from shootergame is this little gem

#

int32 BestScore = MAX_uint32;

severe widget Apr 24, 2018, 9:10 PM

#

Well I mean

jolly siren Apr 24, 2018, 9:10 PM

#

let that sink in

severe widget Apr 24, 2018, 9:10 PM

#

also is that just before they're trying to find who has the best score?

#

cause then that's doubly wrong

jolly siren Apr 24, 2018, 9:10 PM

#

They are intentionally overflowing the int32. Just to set it to -1

#

(sorry offtopic, just had to mention)

severe widget Apr 24, 2018, 9:11 PM

#

also I thought my brain was on, srry will come back later

sharp spire Apr 24, 2018, 11:36 PM

#

ill have everyone know that helped me last night, @severe widget @glacial pollen @winged badger . ive got my equipment working 😃

#

didnt even need a multicast after all lol

winged badger Apr 24, 2018, 11:36 PM

#

good, i had dreams about your network issues last night

#

😄

sharp spire Apr 24, 2018, 11:36 PM

#

lmao no way...

#

im sorry if thats true lol

#

(not that i dont have dreams about my project aswell... lol)

#

sometimes i feel like ive solved some issues while sleeping lol

severe widget Apr 24, 2018, 11:38 PM

#

@sharp spire glad to hear you got it man

glacial pollen Apr 24, 2018, 11:41 PM

#

Lmao

sharp spire Apr 24, 2018, 11:43 PM

#

another question.. lol

#

in important situations, should i ask the server what items are in my equipment to allow certain things? or is that unncessary

winged badger Apr 24, 2018, 11:43 PM

#

you should

#

you also shouldn't send the item level/skill level from client to server to set

sharp spire Apr 24, 2018, 11:44 PM

#

alright and i can do that by calling a function through an RPC right?

#

not for setting, for getting

winged badger Apr 24, 2018, 11:44 PM

#

because that can be hacked in 5 minutes by a 13 y/o using cheat engine

sharp spire Apr 24, 2018, 11:45 PM

#

hm

winged badger Apr 24, 2018, 11:46 PM

#

for my inventory

#

i just send the ServerRPC ServerUseItem with a slot index integer parameter

#

and let the server figure out the rest and replicate the results back to me

sharp spire Apr 24, 2018, 11:48 PM

#

alright that makes sense

high heart Apr 25, 2018, 12:19 AM

#

anybody know if it'd be possible to create a steam server with a different appid than the actual game? I'm trying to work around steam's demo/full matchmaking barriers

hollow creek Apr 25, 2018, 12:26 AM

#

So I'm trying to set up Network play for the first time ever, and I've reached a bit of a hitch. I've been hacking away at logs and google searches, but for some reason, it won't sort out that the library is present. Anyone know what might be up? http://imagizer.imageshack.us/a/img922/3172/HcUTyP.png http://imagizer.imageshack.us/a/img923/8972/2Fastt.png http://imagizer.imageshack.us/a/img923/6072/vy5rua.png

brittle sinew Apr 25, 2018, 12:28 AM

#

Does the specific file it's talking about exist?

winged badger Apr 25, 2018, 12:28 AM

#

https://docs.unrealengine.com/en-US/Programming/Online/Steam

brittle sinew Apr 25, 2018, 12:28 AM

#

(Win64/steam_api64.dll)

hollow creek Apr 25, 2018, 12:28 AM

#

http://imagizer.imageshack.us/a/img924/6844/y4r8rI.png

#

yup

sharp pagoda Apr 25, 2018, 12:29 AM

#

The file path in the error doesn't include /sdk/

hollow creek Apr 25, 2018, 12:29 AM

#

...mother of god

sharp pagoda Apr 25, 2018, 12:30 AM

#

Haha

hollow creek Apr 25, 2018, 12:30 AM

#

all the docs I've been reading have had an /sdk/ in there, it just evaded me completely

#

i'll give it a shot! thank you

#

well ill be damned

sharp pagoda Apr 25, 2018, 12:32 AM

#

Ah, glad it worked out

hollow creek Apr 25, 2018, 12:32 AM

#

😃

fleet sluice Apr 25, 2018, 1:13 AM

#

@jolly siren @thin stratus Yes, I ran into it, and so do my customers, routinely.

Player count isn't being updated because a Steam GameServer needs to authenticate the players with Steam's back-end. Then, once they're authenticated, the player count automatically goes up. It will also automatically go down if the server ends the authentication session when a user disconnects, for whatever reason.

There's no way to simply update the player count without authentication, like you would do with the server name, for example. You could use the SetGameTags function to pass it as custom data, but I don't think it's worth it because:

GameTags are very short so you can't pass too much data through them.
You want to authenticate players anyway, otherwise someone with a pirated copy could just join a regular game because UE4 wouldn't be able to differentiate between the 2.

If you want, I can point you in the right direction with authentication. It's just some async communication that can happen even after connecting, on APlayerController::OnLogin or whatever it was called.

jolly siren Apr 25, 2018, 1:23 AM

#

@fleet sluice ahhhh right, I remember now. I forgot that I had determined that was the cause at one point. That would be awesome 😃 Whatever you have on authentication is greatly appreciated. The last time I had that was back on the ugly pull request on like 4.12

#

I would think authentication is still important on free games because of bans and cheating.

vital steeple Apr 25, 2018, 2:51 AM

#

IIRC onrep functions should only ever be called by clients... right?

#

i have a replicated actor that ticks an integer thats replicated (onrepnotify) up

#

and the onrep function is being called by the server...

glacial pollen Apr 25, 2018, 3:16 AM

#

.> psssst.... There is a bug you can abuse.... >.<
Use a replicated int_array(0), change a value in the array (0), and only the client will run the OnRep
If you SET the array, then both server and client run the OnRep
Other than that onrep is still a bit new to me

vital steeple Apr 25, 2018, 3:18 AM

#

odd

#

i think even in an official ue4 video they mentioned on rep only runs on client, and that was my experience so far

#

i think...

#

im noticing a lot of really weird behavior in 4.18 though

#

like why would that replicate to the server? its running on the server... shouldnt it only need to replicate on the client??

glacial pollen Apr 25, 2018, 3:31 AM

#

What if you want the server and client to do something if a variable changes? That variable may change because of an unrelated function, and you don't want to be putting in a bunch of branches, or multiple functions.

If you want, just do an is server branch on the OnRep and bypass

vital steeple Apr 25, 2018, 4:19 AM

#

yeah there are definitely work arounds, im just confused by the behavior... it seems like a bug to me

#

i dont remember it doing this before... but maybe im just tired

twin juniper Apr 25, 2018, 5:32 AM

#

@vital steeple I've had very random behavior when it comes to OnRep in a listen server... I still don't know why the OnRep function will sometimes run for the host and sometimes not...

sharp spire Apr 25, 2018, 5:48 AM

#

My work around with using onrep and having it replicate is A: changing the variable in a serverRPC, and also writing the repNotifys code after you’ve changed it

#

@vital steeple

#

For example I had my equipment repnotify to change its skeletalmesh, but wrote the code of changing the mesh as it’s own function. So the repnotify calls the function to change the mesh, and also after the variable is changed and forces the onrep, I have it called aswell

#

works fine for visuals, not sure if that’ll be okay for spawning things etc

#

Because somehow for me the server wasn’t seeing the changes but all the clients saw each others change.. lol weird behavior indeed.

#

Because obviously the server knew about these changes and replicated them to all clients but the server said eh.. don’t care lol

#

Server being a listen host *

thin stratus Apr 25, 2018, 6:50 AM

#

@fleet sluice @jolly siren ah yeah. Now I remember. The PR etc. also added that. I assume the authentication simply uses some steamapi call combined with the steamid?

fleet sluice Apr 25, 2018, 8:36 AM

#

@thin stratus Mainly, yes. The client retrieves a ticket (locally generated), sends it to the server either via Steam's Networking interface or replication and then the server uses an API calrl to verify the ticket, which results in a callback with a detailed authentication result. Then it's up to the server if it notifies the client of the result or not.

@jolly siren My current implementation is in a BP APlayerController sub-class (I didn't want to hard-code it into the NetDriver yet). I'll send screenshots when I get home. It's rather short and simple.

Related to the pull request, I don't remember much about it, but I remember seeing its author on this Discord: @Scientizatogm

#

I guess he left. I hate it when people pick nicknames so long and hard to read.

thin stratus Apr 25, 2018, 8:40 AM

#

Hehe, the PR isn't that good anymore anyway

#

Was a nice idea, but well

#

But good to know, have to implement that sooner or later too

#

Can it be, that the ListenServers do this properly already?

#

Despite the ping

fleet sluice Apr 25, 2018, 8:44 AM

#

Technically, there's no difference between client-server and client-client (listen server) authentication, so yea. I don't think OSSteam has it though.

#

The proper place to put it in, is definitely the NetDriver, not AGameMode. APlayerController is a satisfying middle-ground.

burnt meteor Apr 25, 2018, 9:21 AM

#

i finally figured out the chat bug :))))))))))))))))))))))))

thin stratus Apr 25, 2018, 9:28 AM

#

@fleet sluice Haven't looked at netdrivers that much yet. Not feeling too comfortable to just place code into it, hehe

#

Steam does handle server and listenserver differently though

#

At least they have two different files for all the functions for each

fleet sluice Apr 25, 2018, 9:31 AM

#

On the surface, yes (i.e. the advertising and browsing part), but internally, they both rely on an incomplete and broken IpNetDriver subclass, hard-coded to use the ISteamNetworking interface for low-level traffic

#

The USteamNetDriver class and its associated utilities don't do anything different between listen and dedicated

lean hornet Apr 25, 2018, 9:35 AM

#

sooooo~ i ran into a issue with replication of the player movement speed makeing the player move slower and faster on the movement of the scroll wheel but its currently not working. What am i doing wrong ?

IMGUR link for no Image spam https://imgur.com/a/cny7nwp

Imgur

winged badger Apr 25, 2018, 9:37 AM

#

Input actions are client-side

#

you need to forward them to server if you want them to take effect

#

and replication of variables only works one way : from server to client

lean hornet Apr 25, 2018, 9:51 AM

#

so i forward the info the the playerstate and call it from there ? @winged badger

#

so client player ==> playerstate ==> ServerPlayer

thin stratus Apr 25, 2018, 10:42 AM

#

@Vlad#1167 Hm alright. Would be interested in the solution to authentication then.
I guess it's part of SteamWorks already?

#

Or UWorks was the name

#

@lean hornet No, you just call a ServerRPC in the Character directly

#

If you have a ListenServer setup, then Input can be called on the ListenServer Client or on the other Clients.
You should use a SwitchHasAuthority node to test that

#

ListenServer (Authority) can set the changes directly.
Client (Remote) should set the changes locally, but in addition call a ServerRPC that also sets the changes.

#

I assume "FSpeedSetting" applies th changes?

#

Then you'd want to mark your Integer variable as REP NOTIFY instead of just REPLICATED.
That generates a OnRep_VariableName function which will be called when the variable replicated.
In that you will want to call your function that applies the settings

burnt meteor Apr 25, 2018, 10:55 AM

#

U can also use an RPC

lean hornet Apr 25, 2018, 10:59 AM

#

@thin stratus i will try that thank you

thin stratus Apr 25, 2018, 11:05 AM

#

@burnt meteor RepNotify is kinda needed to make sure that late joiners and players becoming relevant also get the update

#

a Multicast wouldn't work there

cunning stirrup Apr 25, 2018, 11:44 AM

#

Hello, i'm having a crash when trying to send a map (TMap) through RPC in blueprint, can anyone confirm that ?

#

ok seems that TMap is not implemented for replication https://answers.unrealengine.com/questions/670186/rpc-event-with-map-variables.html?sort=oldest

bitter oriole Apr 25, 2018, 11:53 AM

#

Is it not implemented now ?

jolly siren Apr 25, 2018, 11:56 AM

#

@fleet sluice Awesome, screenshots would be beautiful 😃 And I ❤ short and sweet solutions. The PR was never good, just a huge mess with a lot of unnecessary changes.

lean hornet Apr 25, 2018, 12:10 PM

#

sooo after i fixed the issue of replication and now this happens https://www.youtube.com/watch?v=UxGuG5mX5do&feature=youtu.be

📎 30174.PNG

YouTube

DualGM

Wierd Jittering

▶ Play video

jolly siren Apr 25, 2018, 12:12 PM

#

Check to see if the speeds are the same on the server and client

#

and use the console command p.NetShowCorrections 1

#

Looks like the server is correcting your movement. Which causes the jerky look

lean hornet Apr 25, 2018, 12:15 PM

#

speeds are the same tho

#

just checked

#

and the console command does nothing for me ?

jolly siren Apr 25, 2018, 12:16 PM

#

The Max Walk Speed?

#

Or your p player speed stuff?

lean hornet Apr 25, 2018, 12:16 PM

#

yep wait

#

the p player speed

#

is always the same and the max speed should also be ?

jolly siren Apr 25, 2018, 12:16 PM

#

I was talking about Max Walk Speed

lean hornet Apr 25, 2018, 12:17 PM

#

nvm i hooked it up to max walk speed

#

i can record the current status if needed

#

📎 unknown.png

full bane Apr 25, 2018, 12:41 PM

#

looks like you enabled the bOrientRotationToMovement thing in the characterMovementComponent

lean hornet Apr 25, 2018, 1:00 PM

#

im going to look @full bane

#

you glorious man xD it worked ^^

full bane Apr 25, 2018, 1:01 PM

#

👍

fleet sluice Apr 25, 2018, 3:17 PM

#

@jolly siren @thin stratus Top execution line runs on client's BeginPlay, bottom execution line runs on server's EndPlay.

📎 Authentication-1.PNG

#

📎 Authentication-2.PNG

#

This is the relevant section from Steam's official docs: https://partner.steamgames.com/doc/features/auth#3

#

GetUser refers to Steam's ISteamUser and GetGameServer refers to the ISteamGameServer interface. All custom functions I've used from my plugin have the same names as they do in the Steam SDK. Likewise for the ValidateAuthTicketResponse_t callback from the SDK.

#

Seems to be working well inside an APlayerControllerclass. I haven't heard of people complaining about it thus far.

jolly siren Apr 25, 2018, 3:22 PM

#

Thank you so much Vlad, digging into this now 😃

thin stratus Apr 25, 2018, 3:22 PM

#

Thanks Vlad!

#

Wondering though: If not using the NetDriver anyway, wouldn't that code make more sense in the GameMode?

#

Wouldn't I be able to send the Ticket and SteamID via ClientTravel options

#

And then verify them in PreLogin?

#

if the "BeginAuth" already fails locally, I could kick them in PreLogin directly

#

If not, I could wait for the callback from steam

fleet sluice Apr 25, 2018, 3:25 PM

#

I guess you could. I never tried. I just happen to know where the NetDriver accepts/denies connections because I messed with that directly to fix OSSteam's multiple machine requirement.

#

I don't see any reason why it wouldn't work

thin stratus Apr 25, 2018, 3:26 PM

#

What is the Ticket type?

#

Byte array?

fleet sluice Apr 25, 2018, 3:26 PM

#

TArray<uint8>

thin stratus Apr 25, 2018, 3:26 PM

#

Hm, so I could convert that to a String

fleet sluice Apr 25, 2018, 3:27 PM

#

Not to be confused with the FTicketHandle struct, because from Steam's point of view, the server could keep track of N tickets in the same object

thin stratus Apr 25, 2018, 3:27 PM

#

Coolio, will try that with PreLogin when I ever get to it. Thanks for sharing!

#

Handle seems to be only relevant on the client?

#

Does that handle need to survive? cause I would generate that stuff before actively joining the server

fleet sluice Apr 25, 2018, 3:29 PM

#

My bad, poor phrasing on my part. No, I don't think it needs to survive, generally. I was thinking of client-client authentication and the existence of some weird case where one would need to keep track of multiple handles.

thin stratus Apr 25, 2018, 3:29 PM

#

Ah right

fleet sluice Apr 25, 2018, 3:30 PM

#

If the authentication fails, the server could just send a new RPC and request a new ticket, at which point the old handle is no longer needed anyway.

thin stratus Apr 25, 2018, 3:30 PM

#

I would usually just deny the Client if the Auth fails

#

One question though:

#

📎 unknown.png

#

How is that part tested anyway

#

Cause that is a synced reply

#

Is that "OK" worth anything?

#

Because "PreLogin" can only kick a player in a synced call.
So if that BeginAuthSession returns anythin but OK (or maybe something !Okay), then I could kick them directly, without needing to send the ticket to the Steam Servers

fleet sluice Apr 25, 2018, 3:32 PM

#

Yea, the OK part is required. It's a local verification. Technically, with or without the Steam application running, the .dll handling this stuff is the same (steamclient64.dll). I assume it's some form format verification to exclude malformed tickets.

#

You could, yes. I would give them 2-3 shots though.

#

For each client, that is

#

It can't hurt

#

This is all in the range of milliseconds anyway

thin stratus Apr 25, 2018, 3:33 PM

#

So it could fail event though the ticket is valid?

vocal dagger Apr 25, 2018, 3:34 PM

#

When I start the game and I'm not on multiplayer I have my own game mode right? If I join a session my game mode is overtaken by the server's game mode am I right?

fleet sluice Apr 25, 2018, 3:35 PM

#

Yea. Imagine a client sends a 0 0 0 69 69 0 0 0 ticket and Steam expecting tickets to start with 1 1 1 instead. The server wouldn't even forward the ticket to Steam because it knows from the start it's screwed.

jolly siren Apr 25, 2018, 4:05 PM

#

Does the steamclient.so handle this the same on linux? vs. the dll

versed socket Apr 25, 2018, 4:15 PM

#

So apparently UE4 has Voice Chat built into it? I just noticed this APlayerController::ToggleSpeaking() method: http://api.unrealengine.com/INT/API/Runtime/Engine/GameFramework/APlayerController/ToggleSpeaking/index.html

APlayerController::ToggleSpeaking

Toggle voice chat on and off

jolly siren Apr 25, 2018, 4:16 PM

#

yes, it works okay in 4.19

high nebula Apr 25, 2018, 4:21 PM

#

in my top down game, with multiplayer, if I make the world using world composition, and tiles of 80mx80m, am I going to have issues? Without a dedicated server?

#

quickly testing in the editor with 3 players, once my first character went into another tile the other two started jittering..

#

I have the streaming set really low so player 1 unloads the first tile pretty quick

high nebula Apr 25, 2018, 4:59 PM

#

bah, no world composition. will do level streaming tho, and use it to control areas manually

#

Getting really wierd issues with my mana variable tho

#

everytime I switch between client windows, the client resets to default value minus whatever he's spent

#

I have a feeling its the way I have the regen/spend functions are set up

#

Mana variable is on character pawn. Is now set to RepNotify, which just updates the HUD

#

Yup. bad setup.

sharp spire Apr 25, 2018, 5:15 PM

#

hey guys, what is the most common way of refreshing a HUD after modifying a Replicated Variable via RPC?

#

just calling a refresh after the input?

#

RepNotify still gets run by the server, so its accessing NONE

high nebula Apr 25, 2018, 5:18 PM

#

I've been doing an IsValid node on the hud reference. it "works"

#

works on the client, server sees its not valid and silently fails

sharp spire Apr 25, 2018, 5:19 PM

#

oh hmm

#

ill give it a go

#

thank you

high nebula Apr 25, 2018, 5:19 PM

#

yeah works for me, dunno if its the best way. 🤷

sharp spire Apr 25, 2018, 5:20 PM

#

i was actually curious if the GameModes' HUD class is meant for referencing, but figured id rather be more accurate with my question lol

high nebula Apr 25, 2018, 5:20 PM

#

oh, I use widgets so I dont even know what that HUD class does anymore :?

sharp spire Apr 25, 2018, 5:21 PM

#

oh i use widgets too

#

guess that nulls my question lol

#

also, that works fine for listenserver, but the clients arent updating their hud :\

#

inventory*

high nebula Apr 25, 2018, 5:25 PM

#

uhh, I dunno, does each client have the hud?

sharp spire Apr 25, 2018, 5:26 PM

#

yes lol

#

its working just having an issue ..

#

not sure what i did. but im sure its my doing.

#

on the server i click an input to add an item through RPCS and such to add an item and itll add it just fine. for the clients i click add, and it adds it but doesnt show it in the inventory until i add a second item... lol

fleet sluice Apr 25, 2018, 5:32 PM

#

HUD doesn't do anything crucial anymore. In one old livestream, a gentleman from Epic even said, if in use, it should just be considered a "UMG container" and nothing more.

sharp spire Apr 25, 2018, 5:33 PM

#

well i thought about using it as a container tbh

#

im still having trouble understanding where a hasAuthority switch is useful... (yes i know thats bad lol)

#

is it mainly used for setting locally and over the network at the same time? i just dont get it.. lol

severe widget Apr 25, 2018, 5:43 PM

#

no it doesn't handle any RPCs

#

Its for code that is going to run on both places - but how that happens is up to you

sharp spire Apr 25, 2018, 5:43 PM

#

https://gyazo.com/6630c84c7fe30c91f5ab0daf6f9a1a28 so im using this to handle my widget refresh while still adding to the server array. (the function just simply contains adding to the inventory array)

Gyazo

#

on the listenserver everything is fine, and on the clients its ALMOST right... except the first item in your inventory is always messed up..

#

basically it shows no icon, and no text, but can be clicked and activates its usage.. but when adding a second item, it takes the place of the first and still says theres two items.. then the third takes the second place, etc

#

oh wait, do pure functions followup on the server?

#

maybe thats my issue lol

thin stratus Apr 25, 2018, 7:11 PM

#

You are calling the local event right after the ServerRPC

#

You do know that a ServerRPC as well as replicating data takes time, right?

#

Call Refresh directly will probably still use the old data

night jay Apr 25, 2018, 7:56 PM

#

Guys I've been trying to figure this out but I'm kinda stuck

#

How the hell do you execute console commands on a dedicated server

#

Like not even the BP node works

sharp spire Apr 25, 2018, 9:11 PM

#

oooo

#

so how can i have it refresh on a delay?

#

RepNotify id imagine?

#

but how would i go from a ServerRPC to a Local?

#

@thin stratus

#

basically whats happening is the first item has no information for my UI somehow

#

any items added after that work fine

#

actually let me test if its the first time THAT item shows up

#

its just the latest item thats added, so youre right

#

just gotta find a work around lol

#

ill be damned.

#

onrep works fine since i have a "isvalid" on my widget reference.

#

thanks @thin stratus

vital steeple Apr 25, 2018, 10:01 PM

#

@sharp spire sounds like you have a similar solution for when i was spawning equipment/character meshes 😃

#

regarding your response to my stuff a few hours ago

thin stratus Apr 25, 2018, 10:02 PM

#

ServerRPC and then a Repnotify

#

And if you don't want others to get that update, use the rep conditions

#

E.g. OwnerOnly

vital steeple Apr 25, 2018, 10:03 PM

#

also replicated meshes dont change if you set a different mesh. you have to manually force the change by multicasting the mesh change. thats a known bug. so watchout for that 😃

#

IIRC the official response to that bug was "spawn actors in with the intended mesh"

#

if you want to swap a mesh (on a character for example) they recommended you just destroy it and possess a new actor with the correct mesh 😉

#

ive also noticed VERY weird behavior with replicated particle systems. soemtimes, activating them DOES display correctly for other players, other times it doesnt. restarting the editor seemed to "fix" it. :/

#

im on 4.18 though, and i've heard 4.18 is a bit buggy

thin stratus Apr 25, 2018, 10:09 PM

#

Why would that be a bug

#

The mesh is simply not replicated

#

You should also not use an rpc

#

As late joiners wouldn't see the mesh change then

#

Repnotify mesh variable should work

sharp spire Apr 25, 2018, 10:47 PM

#

Actually my mesh changes over rpc with rep notify just fine 😮 for the listen server and all connected clients

#

Maybe I used a multicast, but I don’t believe I did

#

📎 image.jpg

#

Festive hats 😃

#

Yea my men have ten packs. They work out a lot.

vital steeple Apr 25, 2018, 11:40 PM

#

sorry, to clarify: on 4.18 set skeletal mesh doesn't replicate, even if the component is replicated and it's run locally on the server. with static meshes, it works fine. there was an bug report submitted a year or so ago about it, but i cant seem to find it right now. my google fu is weak.

#

i think that qualifies it as a bug

#

or were you talking about the particle activation not showing to clients?

#

ive run into that multiple times and its just disappeared later

sharp spire Apr 25, 2018, 11:45 PM

#

mine does replicate though

#

the client and server and can see clients and servers equipment using a RepNotify

proper olive Apr 26, 2018, 12:38 AM

#

You can replicate set skeletal mesh by using RepNotify and multicast at the same time it's really wonky but it works @sharp spire

#

📎 unknown.png

#

📎 unknown.png

#

I feel like the mesh variable should be passed through the Multicast RPC too but this works

#

anyway I have a question if anyone has experience with this really bizarre error... a friend of mine says he gets a similar error when using characters attached to other characters

#

basically the Add Controller Yaw Input, when using Controller Rotation Yaw and not Orienting Rotation to Movement...... on client, and on server, it works fine, but for clients seeing other clients, it's as if the character's rotation is being clamped from 360 degrees of movement to 180, so that it turns around in half a circle in the same time/speed it takes to turn a full circle, then snaps around to the other side

#

my normal character doesn't display this behavior which is why I think it's because of the attachment, but curious if anyone has seen this before?

toxic meteor Apr 26, 2018, 1:11 AM

#

What's the best way to handle picking up items in multiplayer? Should you run a trace on the client & then have the server also do a trace to check or can you just have the server do a trace to the object?
My thinking: Client Trace --> Server Trace --> Add item to inventory
Or can you just do the server trace?

fossil spoke Apr 26, 2018, 1:19 AM

#

@toxic meteor If you let the Client and Server do the trace you can use that to help hide latency.

#

The Clients trace would be used to "assume" that the Servers trace will also allow you to pickup the item

#

Therefore the Client can predict what the Server is going to do.

#

And do it ahead of time.

#

If the Server rejects the request then you just force the Client to remove the Item

#

And its placed back on the ground.

#

So no harm done

#

If you only allow the Server to trace then your client has no information about the item UNTIL the Server tells the client what happened.

toxic meteor Apr 26, 2018, 1:26 AM

#

@fossil spoke How would you go about implementing that?
For example, I have 'interact' bound to F, so in the character blueprint I would have the Event Interact call the trace function. Would I also then do the same thing say within the player controller where switch has auth and then compare the two results & go from there?

#

So on client (Character blueprint) Trace returns item
Server(CharacterController Blueprint) Trace returns item & checks client trace if the same then add item to inventory

fossil spoke Apr 26, 2018, 1:31 AM

#

📎 Capture.JPG

#

Player presses "F" indicating they want to run some sort of trace for Item Pickup.

#

Send an RPC to the Server to let it know the Player wants to perform that action.

#

Server runs the same function as the Client does locally.

#

The Client would run cosmetic "Pickup" logic (removing the mesh from the ground, putting in inventory visually) Server would replicate any actual state down to the Player (ie: An Item has been added to Inventory)

toxic meteor Apr 26, 2018, 1:34 AM

#

Awesome, that helps alot!

fossil spoke Apr 26, 2018, 1:35 AM

#

Use HASAUTHORITY inside the "DoTraceForItem" function to perform Authority/Remote specific actions

#

Use HasAuth where you need to ensure different logic is run by different Roles

#

If the Server rejects the request you would then get the Server to send an RPC back down to the Client to tell the Client to reverse any cosmetic changes it did.

toxic meteor Apr 26, 2018, 1:37 AM

#

Is the player controller the proper place to have this as its replicated between owning client & server or would I split it between that and the character?

fossil spoke Apr 26, 2018, 1:38 AM

#

PlayerController exists on the Server (for every client) and its owning Client. Using the word Replicated in that context is not accurate.

#

Is it for adding Items into an Inventory?

toxic meteor Apr 26, 2018, 1:39 AM

#

Yeah I wasn't quite sure what to call it, I'm still learning how all the networking stuff works, been using the Network Compnedium as a refrence

#

and it is for adding items to an inventory

fossil spoke Apr 26, 2018, 1:39 AM

#

Where is your Inventory implemented?

toxic meteor Apr 26, 2018, 1:40 AM

#

Player controller

#

It is an array of structs

fossil spoke Apr 26, 2018, 1:40 AM

#

Do it on the PC then.

#

Honestly, i would have seperated out the Inventory into its own Component and then implemented Pickup functionality on that Component as part of the Inventory

#

👍

toxic meteor Apr 26, 2018, 1:42 AM

#

Go ahead 😃

fossil spoke Apr 26, 2018, 1:42 AM

#

Go ahead

#

Where does it appear?

#

I wouldnt be worried.

#

No idea man, never seen it before. Its only an Warning and if its working fine i wouldnt be concerned. Make sure it works fine in an Packaged game though.

toxic meteor Apr 26, 2018, 1:47 AM

#

@fossil spoke When you said that you tend to separate your inventory into a separate component, what do you mean? Are you creating another blueprint altogether?

fossil spoke Apr 26, 2018, 1:47 AM

#

Yes an Actor Component

toxic meteor Apr 26, 2018, 1:49 AM

#

Okay thanks!

proper olive Apr 26, 2018, 2:02 AM

#

Fixed my problem with an Is NOT Locally Controlled switch 😄

#

#meta

#

I have a general purpose question that I never really saw discussed personally... when you run a Server RPC or Client RPC, then continue run the exec wire off of the blue node, are you still on Server or Client, or does it go back to / stay on whichever one it was before the RPC?

#

like this:

📎 unknown.png

#

ignore my boolean there because I'm actually doing both the Orient and the Controller Yaw on that Server RPC (and doing one yes, one no)

#

but basically let's say the client runs this code - the Orient Rotation to Movement on the right there - would it be on Server or Client or both or ...?

vital steeple Apr 26, 2018, 2:06 AM

#

@proper olive thats what i had to do

#

it just doesnt replicate (for me) by running a command on the server to set the variable and let it naturally replicate

#

had to do a multicast

proper olive Apr 26, 2018, 2:06 AM

#

I multicast most of my variables yeah for example animation booleans

#

but don't have to if it's like the movement component for example

#

certain things are automatically replicated if run on a replicating actor on the server, but not everything

#

but yeah anybody know about that post-blue-Server-RPC exec wire replication? 😄

fossil spoke Apr 26, 2018, 2:10 AM

#

@proper olive To answer your question, the Network Context of the wire will remain the same. The RPC node doesnt change the Context of the wire, it sends an REMOTE request to the endpoint to run an particular piece of code.

#

If an node was called on the Server, the next node after that will remain being called on the Server

#

RPCs do not modify the Network Context of an wire

proper olive Apr 26, 2018, 2:11 AM

#

so that Server RPC will run on Server then when it continues on the white exec line, it'll remain however it was before the Server RPC?

fossil spoke Apr 26, 2018, 2:11 AM

#

Yes

proper olive Apr 26, 2018, 2:11 AM

#

woohoo

sharp spire Apr 26, 2018, 2:59 AM

#

@proper olive it’s replicating tho without multicast is what I’m saying :/

proper olive Apr 26, 2018, 3:00 AM

#

o sorry, I just came in at the end, didn't go back far enough to see what the root issue was

#

just saw "skeletal meshes don't replicate" and had to say something 😄

#

cause they don't, but they can...

sharp spire Apr 26, 2018, 3:00 AM

#

I didn’t have an issue I just saw a discussion on how you need a multicast for skeletal mesh components to replicate and I got it working just fine with an RPC and setting the toggle on

#

Hm

proper olive Apr 26, 2018, 3:09 AM

#

@sharp spire ah did you check if you are indeed using a multicast? would be curious to see how you accomplished changing skel mesh at run time without it?

sharp spire Apr 26, 2018, 3:10 AM

#

thats why i figured id pitch in and share what i've done 😮

#

ill post what i did

#

https://gyazo.com/d8b209fa25de84e9f39241d3c873e200 the EquipFunction is straightforward about setting my equipment array which is set to RepNotify and on RepNotify runs refresh which runs this https://gyazo.com/bdab2ff0b8de64696b59b40c00a3abb6

Gyazo

#

E_RightHand is set to Component Replicate

#

and its as simple as that, no MC o.o

#

and both clients, and listen server all see eachothers changes

#

https://gyazo.com/2182286a957a54abdc12014ef8084e6f

Gyazo

#

proof of concept

proper olive Apr 26, 2018, 3:15 AM

#

where's Inventory Index going to?

sharp spire Apr 26, 2018, 3:16 AM

#

checking my replicated inventory array

#

irrelevant i think lol

proper olive Apr 26, 2018, 3:16 AM

#

well if that's where it's getting the reference...

#

where's "New Mesh" coming from?

sharp spire Apr 26, 2018, 3:16 AM

#

the inventory array.. lol

#

its a structure.

proper olive Apr 26, 2018, 3:16 AM

#

😛

#

and how is that struct getting set?

sharp spire Apr 26, 2018, 3:16 AM

#

so many questions.. lol

#

through a normal rpc

#

i dont have a single mc

proper olive Apr 26, 2018, 3:17 AM

#

ah

sharp spire Apr 26, 2018, 3:17 AM

#

in my entire project

proper olive Apr 26, 2018, 3:17 AM

#

not repnotify?

sharp spire Apr 26, 2018, 3:17 AM

#

yes repnotify for Equipment and Inventory

proper olive Apr 26, 2018, 3:18 AM

#

repnotify from server is basically what cedric was saying earlier

#

that's essentially multicast plus if you wanna let me call it that 😄

sharp spire Apr 26, 2018, 3:19 AM

#

well with all due respect i wasnt trying to see who was right haha i was just seeing if had any bit of insight for those that were curious. so essentially were both right 😃

proper olive Apr 26, 2018, 3:19 AM

#

oh me neither

sharp spire Apr 26, 2018, 3:19 AM

#

im very new to multiplayer so im bound to make many mistakes

#

i hope i stress that enough ._.

proper olive Apr 26, 2018, 3:19 AM

#

saaaame here

#

well technically I'm very new to UE and multiplayer and programming and gamedev all at the same time

sharp spire Apr 26, 2018, 3:20 AM

#

haha i started UE and asset creation about two years ago

#

started multiplayer about a week and a half ago.. haha

proper olive Apr 26, 2018, 3:21 AM

#

nice nice, 2 years all around here minus sanity breaks

#

multiplayer definitely tests the nerves 😉

sharp spire Apr 26, 2018, 3:21 AM

#

i need a sanity break... i spend an average of 6 hours a day working on my project and the only "break" i had was when my son was born lol

proper olive Apr 26, 2018, 3:22 AM

#

yeah it's addictive and bad for you 😄

#

:shame:

sharp spire Apr 26, 2018, 3:22 AM

#

i got so far into my last project, i may release it as a single player game. but my intentions were a mp but didnt realize it wasnt an easy conversion

#

its not bad for you if you actually finish something 😃

proper olive Apr 26, 2018, 3:23 AM

#

well no i just mean getting sucked into working at the desk for too many hours is bad for the back 😄

sharp spire Apr 26, 2018, 3:23 AM

#

i started this project that im working on now when i started learning MP nearly two weeks ago and ive made tons of progress. at this rate i think i could finish a fun mobile game within 6 months if not sooner

#

yea haha

#

i need an argonomical desk

proper olive Apr 26, 2018, 3:23 AM

#

yeah I kinda feel like certain multiplayer functions should be reversed by default

sharp spire Apr 26, 2018, 3:23 AM

#

or however that word is spelled lol

proper olive Apr 26, 2018, 3:23 AM

#

like make us force it to run only on client instead of multicast/repnotify everything by default

sharp spire Apr 26, 2018, 3:24 AM

#

i agree, but in a sense it gives those who finally understand it a fair chance at success compared to those who just learn the basics of UE4

proper olive Apr 26, 2018, 3:24 AM

#

yeah there's definitely a bar to pass 😄

sharp spire Apr 26, 2018, 3:24 AM

#

by all means haha

#

but its a fun bar

#

i enjoy thinking about it while im at work lol

proper olive Apr 26, 2018, 3:25 AM

#

sometimes I think certain default values were left wrong on purpose

#

just to make sure you're changing things yourself

winged badger Apr 26, 2018, 3:25 AM

#

its "ergonomical"

sharp spire Apr 26, 2018, 3:25 AM

#

thank you @winged badger 😃

proper olive Apr 26, 2018, 3:25 AM

#

how do you mean?

sharp spire Apr 26, 2018, 3:25 AM

#

ergonomical?

proper olive Apr 26, 2018, 3:25 AM

#

yea

sharp spire Apr 26, 2018, 3:25 AM

#

a desk where you can go from sitting to standing by lifting the desk

#

it has a pressure mount

proper olive Apr 26, 2018, 3:25 AM

#

ooooh lol

sharp spire Apr 26, 2018, 3:26 AM

#

yea its the "new thing"

#

lol

proper olive Apr 26, 2018, 3:26 AM

#

I had one but the design was bad by design, a bolt was pressured loose and I started being afraid my cat would trigger it into crushing him under it so I stopped using it completely

#

standing is still important 😄

sharp spire Apr 26, 2018, 3:27 AM

#

haha poor cats.. always so curious. sorry, we should probably either move to #ue4-general or PM. sorry guys.

proper olive Apr 26, 2018, 3:27 AM

#

lmao thinking the same

sharp spire Apr 26, 2018, 3:27 AM

#

cats are not MP relevant right now.

proper olive Apr 26, 2018, 3:28 AM

#

trying to keep it on topic..... well I fixed my weird rotation issue and now I'm trying to figure out why my swimming component is still active but that's just a process of elimination... I usually only ask here when I really can't find anything on Google

vivid fjord Apr 26, 2018, 3:30 AM

#

we talking about cats?

proper olive Apr 26, 2018, 3:30 AM

#

how bout that cat game, would be fun in multiplayer.....

winged badger Apr 26, 2018, 3:30 AM

#

the cats are relevant when you need to replicate them

proper olive Apr 26, 2018, 3:30 AM

#

:drumroll:

vivid fjord Apr 26, 2018, 3:31 AM

#

cats are naturally adversarial and territorial

proper olive Apr 26, 2018, 3:31 AM

#

they're relevant when they're within the relevancy radius

vivid fjord Apr 26, 2018, 3:31 AM

#

you think they use a raytrace or sphere overlap

#

I think sphere overlap

proper olive Apr 26, 2018, 3:34 AM

#

switch on random enumerator of senses

#

from stream so they just stare at a wall until something changes their condition

sharp spire Apr 26, 2018, 3:39 AM

#

If you're using a Multicats make sure to have an array of literboxes

fossil spoke Apr 26, 2018, 3:55 AM

#

Those Multicats will get you

gloomy tiger Apr 26, 2018, 4:08 AM

#

People, question -- is there a simple way to simulate a player logout/disconnect in the Editor?

#

I mean, when I close the player's window even when not running the Dedicated Server in a single process, both are closed when I close the client window.

#

(PIE)

hasty adder Apr 26, 2018, 4:11 AM

#

In client console reconnect

#

Disconnect works but will bring you to default project map in its own instance I believe @gloomy tiger

gloomy tiger Apr 26, 2018, 4:12 AM

#

Oh, the console! You're right. 😄

#

Worked as expected. Thank you, @hasty adder.

hasty adder Apr 26, 2018, 4:13 AM

#

o/

#

Comes in handy if you need to make sure a player drops a game needed item if they disconnect 😉

gloomy tiger Apr 26, 2018, 4:18 AM

#

Sure thing! xD

thin stratus Apr 26, 2018, 8:59 AM

#

So, I'm currently trying to figure out if I want to get rid of the default specatorpawn that spawns when the PlayerController receives the SpectatorClass.
Or if I would want to just reposition it. Because I start my GameMode delayed and during the time they see the team selection, I want them to use a rotating camera in the middle of the map.
To get rid of the SpectatorPawn I would need to actively override the "ReceivedPlayer" and "ReceivedSpectatorClass" I assume.
Or I change the view target and let them (client only-) spectator pawn just sit in the world

thin stratus Apr 26, 2018, 9:57 AM

#

Well actually I need to stop that one from spawning

#

Why does Epic have to do soooo much for one

#

I mean cool to have a specator system, but why forcing it on me

#

void APlayerController::PostInitializeComponents()
{
    Super::PostInitializeComponents();

    if ( !IsPendingKill() && (GetNetMode() != NM_Client) )
    {
        // create a new player replication info
        InitPlayerState();
    }

    SpawnPlayerCameraManager();
    ResetCameraMode(); 

    if ( GetNetMode() == NM_Client )
    {
        SpawnDefaultHUD();
    }

    AddCheats();

    bPlayerIsWaiting = true;
    StateName = NAME_Spectating; // Don't use ChangeState, because we want to defer spawning the SpectatorPawn until the Player is received
}

#

Guess one could override PostInit and set the start to something else

#

Probably gonna break everything lol

thin stratus Apr 26, 2018, 10:25 AM

#

If only the coders of UT would use comments more often

#

Splitting the CameraManager UpdateCamera function for Dedi Server and others.
No comment why that's done

fossil spoke Apr 26, 2018, 10:32 AM

#

What do you mean Splitting it?

thin stratus Apr 26, 2018, 10:33 AM

#

They do something else for DedicatedServers

fossil spoke Apr 26, 2018, 10:33 AM

#

Oh right

thin stratus Apr 26, 2018, 10:33 AM

#

https://github.com/EpicGames/UnrealTournament/blob/620ee8f16c86d72f484cc6c12ccd861d820bafa1/UnrealTournament/Source/UnrealTournament/Private/UTPlayerCameraManager.cpp#L119

fossil spoke Apr 26, 2018, 10:33 AM

#

I havent read any UT code lol

thin stratus Apr 26, 2018, 10:33 AM

#

Seems like they force default values

#

Yeah I'm trying to learn how to properly utilize all given classes

#

And currently try to remove the forced SpectatorPawn

fossil spoke Apr 26, 2018, 10:33 AM

#

The PCM is great

thin stratus Apr 26, 2018, 10:34 AM

#

Yeah using that now to modify the camera, e.g. moving it to the rotating spawn camera at start

#

Still having the problem of a SpectatorPawn spawning by default

#

...

fossil spoke Apr 26, 2018, 10:34 AM

#

You dont have the SpawnAsSpectator flag on GM set? lol

thin stratus Apr 26, 2018, 10:35 AM

#

No

#

PC spawns it by default

fossil spoke Apr 26, 2018, 10:35 AM

#

Oh really?

#

Thats weird

thin stratus Apr 26, 2018, 10:35 AM

#

It receives the Class from GameState and spawns it

#

Cause PostInitProps sets the state to Spectating by default

#

I will try overriding this with my own custom state

fossil spoke Apr 26, 2018, 10:35 AM

#

Is this in UT or just UE4

thin stratus Apr 26, 2018, 10:35 AM

#

Just UE4

fossil spoke Apr 26, 2018, 10:35 AM

#

Mmmm never noticed that before

thin stratus Apr 26, 2018, 10:36 AM

#

Yeah idk

#

StateName = NAME_Spectating; // Don't use ChangeState, because we want to defer spawning the SpectatorPawn until the Player is received

#

In void APlayerController::PostInitializeComponents()

fossil spoke Apr 26, 2018, 10:36 AM

#

Why would they bother at all if the flag on GM isnt set?

#

Doesnt make sense

#

The PC doesnt need an Pawn

thin stratus Apr 26, 2018, 10:37 AM

#

Well they do :D

#

void APlayerController::ReceivedSpectatorClass(TSubclassOf<ASpectatorPawn> SpectatorClass)
{
    if (IsInState(NAME_Spectating))
    {
        if (GetSpectatorPawn() == NULL)
        {
            BeginSpectatingState();
        }
    }
}

fossil spoke Apr 26, 2018, 10:37 AM

#

What condition does this occur? Does it get spawned/destroyed even if an DefaultPawnClass is defined?

thin stratus Apr 26, 2018, 10:38 AM

#

DefaultPawnClass != NULL and bDelayedStart = true

fossil spoke Apr 26, 2018, 10:38 AM

#

And they still spawn one? Thats odd

#

Old legacy crap maybe?

thin stratus Apr 26, 2018, 10:39 AM

#

void AGameStateBase::ReceivedSpectatorClass()
{
    // Tell each PlayerController that the Spectator class is here
    for (FConstPlayerControllerIterator Iterator = GetWorld()->GetPlayerControllerIterator(); Iterator; ++Iterator)
    {
        APlayerController* const PlayerController = Iterator->Get();
        if (PlayerController && PlayerController->IsLocalController())
        {
            PlayerController->ReceivedSpectatorClass(SpectatorClass);
        }
    }
}

#

There is no check for that

#

ReceivedSpectatorClass calls on OnRep

#

void AGameModeBase::InitGameState()
{
    GameState->GameModeClass = GetClass();
    GameState->ReceivedGameModeClass();

    GameState->SpectatorClass = SpectatorClass;
    GameState->ReceivedSpectatorClass();
}

#

So GameMode hands it to GameState. That gives it to PlayerControllers

#

And they instantly spawn the Spectator if in Spectate State

#

I mean, sure, I will try to simply NOT set it to spectate state

#

But still weird

#

bStartPlayersAsSpectators

#

Is what you meant, right? @fossil spoke

fossil spoke Apr 26, 2018, 10:42 AM

#

Yeah

thin stratus Apr 26, 2018, 10:42 AM

#

Yeah that only gets used in "HandleStartingNewPlayer"

#

And there it only checks for it to be false

#

https://github.com/EpicGames/UnrealEngine/search?utf8=✓&q=bStartPlayersAsSpectators&type=

#

:D They never use it?

fossil spoke Apr 26, 2018, 10:43 AM

#

Mmm

#

Weird shit lol

thin stratus Apr 26, 2018, 10:43 AM

#

Typical >.>

fossil spoke Apr 26, 2018, 10:44 AM

#

Aye haha

thin stratus Apr 26, 2018, 10:44 AM

#

I mean sure, they are using that in the way of saying "If it's false, we can spawn the normal pawn"

#

Like, the boolean is meant to delay spawning the actual pawn

#

Not to allow spawning the spectator

#

So if you tick that, and you don't use DelayedStart, then it won't spawn the pawn

#

But keep you in the already spawned spectator

#

While you would think, that you simply have no pawn at start

#

.>

#

Welp, I will post an update once I know if I can simply not set state to spectate

cedar galleon Apr 26, 2018, 10:54 AM

#

hey everyone! I have need solution......
I join in the player in the session (JoinSession) when the pplayer Logout from Server I want the character not destroy on server, but stay on Server. Now when exit from Session the player destroy, I want stay on Server, how can solved this problem?

Tk..

fossil spoke Apr 26, 2018, 11:02 AM

#

@tawny jaysualnotte#6215 Unpossess the Character before leaving the Server, that should stop it from being Destroyed.

cedar galleon Apr 26, 2018, 11:09 AM

#

@fossil spoke I have used Unpossess but when exit to window player close the connection and Character destroy on Server

fossil spoke Apr 26, 2018, 11:10 AM

#

Hmm, i thought an Orphaned Pawn would remain

cedar galleon Apr 26, 2018, 11:11 AM

#

@fossil spoke no! when I destroy actor character 😦

#

how can solved?

fossil spoke Apr 26, 2018, 11:12 AM

#

Sorry that doesnt make sense?

thin stratus Apr 26, 2018, 11:18 AM

#

I can't find any logic that would destroy the pawn by itself

#

However might be hidden somewhere

cedar galleon Apr 26, 2018, 11:29 AM

#

@thin stratus I have multiplayer game, I want when the Player logout from SErver not dissaper your character, but go in the state "sleeping", want stay on server

#

how can solved?

thin stratus Apr 26, 2018, 11:29 AM

#

Idk, I can't see any reason for an unpossessed pawn to be destroyed

cedar galleon Apr 26, 2018, 11:30 AM

#

because I connect with this pawn with JoinSession

#

this is problem?

cedar galleon Apr 26, 2018, 12:17 PM

#

have solved 😃

#

tk for all

idle fiber Apr 26, 2018, 12:48 PM

#

Has anyone tried using the close combat swordsman kit by Gert for a multiplayer scenario?

solar stirrup Apr 26, 2018, 1:31 PM

#

how good is Unreal's networking implementation?

fleet sluice Apr 26, 2018, 1:46 PM

#

Good for what purpose?

#

For DOTA-like multiplayer, it's good. For WoW-like multiplayer, better turn around.

solar stirrup Apr 26, 2018, 1:48 PM

#

FPS multiplayer

#

With a server authoritative architecture

fleet sluice Apr 26, 2018, 1:48 PM

#

Star Citizen is also a FPS with a server authoritative architecture, yet a MMO at the same time.

#

All I'm saying is, you're a bit vague.

solar stirrup Apr 26, 2018, 1:49 PM

#

For a game with around 32 players maximum

fleet sluice Apr 26, 2018, 1:49 PM

#

Then np.

solar stirrup Apr 26, 2018, 1:49 PM

#

Alright cool

#

I'm coming from Unity and I'm making my own net lib since UNET sucks 🤢

fleet sluice Apr 26, 2018, 1:50 PM

#

What are you using for NAT traversal?

#

Just curious here

#

I made my own networking using Steam

solar stirrup Apr 26, 2018, 1:51 PM

#

I'm gonna make my own coupled with UPNP

#

I'm learning more about networking at the same time

fleet sluice Apr 26, 2018, 1:52 PM

#

I've had disappointing results with UPNP and 3 different consumer-level NATs

#

But that was just my experience and I'm saying it as a heads-up, not at all as a discouragement

jolly siren Apr 26, 2018, 1:53 PM

#

I came from Unity like a week after UNet was released because I was so disappointed by it and I've been nothing but happy with Unreal's networking ❤

fleet sluice Apr 26, 2018, 1:54 PM

#

I was close to coding TURN/ICE servers while working on my networking because UE4 offers no such thing

jolly siren Apr 26, 2018, 1:54 PM

#

The Steam implementation is pretty incomplete tho fyi

jolly siren Apr 26, 2018, 3:04 PM

#

@thin stratus For your session implementations, do you create a new delegate for FindSessionComplete and make it BlueprintAssignable? Instead of using the ootb FOnFindSessionCompleteDelegate?

thin stratus Apr 26, 2018, 3:05 PM

#

My FindSessionProxy has a custom Struct in it for all the session data.
Since the Delegate in the Proxies defines the return value, I have to create a new one that returns TArray<customStruct>

#

So, yes?

#

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FFindSessionsDelegate, const TArray<FPBSessionResult>&, Results);

#

    /** Delegate (BP Node Exec) called when we successful. */
    UPROPERTY(BlueprintAssignable)
        FFindSessionsDelegate OnSuccess;

    /** Delegate (BP Node Exec) called when we failed. */
    UPROPERTY(BlueprintAssignable)
        FFindSessionsDelegate OnFailure;

jolly siren Apr 26, 2018, 3:06 PM

#

ahh so you use a UOnlineBlueprintCallProxyBase for your session stuff?

thin stratus Apr 26, 2018, 3:06 PM

#

Yes, cause I expose that stuff to BPs

#

If you don't plan on needing that, then you can do the same though

#

Code is basically the same

#

Just one delegate less and then a second parameter for "bSuccessful"

#

Well actually

#

You can use the same :P

jolly siren Apr 26, 2018, 3:09 PM

#

Ahh okay, right. Yeah I'm just cleaning some of my session code because my initial implementation used something similar to ShooterGame, where they keep checking to see if the results have came back in tick

thin stratus Apr 26, 2018, 3:10 PM

#

Ouch :D

jolly siren Apr 26, 2018, 3:12 PM

#

😛

gusty raptor Apr 26, 2018, 3:29 PM

#

hey guys, im trying to attach a actor to another actor, actors are spawned on server.. how wouldi replicate the attachments?

#

editor crashes with almost everything i try 😦

magic helm Apr 26, 2018, 7:11 PM

#

Have you tried only attaching on the server?

#

Also are both actors replicating and have replicate movement turned on?

toxic meteor Apr 26, 2018, 7:14 PM

#

Is it possible to get a players steam group? (I want to make a guild system using the steam groups as to determine the members)

winged badger Apr 26, 2018, 7:20 PM

#

i think the steam API calls it "clan"

hasty adder Apr 26, 2018, 7:32 PM

#

Might be private data now 😉

toxic meteor Apr 26, 2018, 9:15 PM

#

Just incase anyone was curious; I figured out how to get peoples steam groups using advanced sessions: There's a node 'Get Steam Groups' that gets an array of the users steam groups 😃

glacial pollen Apr 26, 2018, 11:56 PM

#

Why...

📎 unknown.png

#

is the server running this rpc?

#

It appears the client doesn't have the object...

brittle sinew Apr 26, 2018, 11:58 PM

#

Is that component (directly or indirectly) owned by the server's PlayerController?

glacial pollen Apr 26, 2018, 11:58 PM

#

Supposed to be the server side of the local player controller

#

it has a hud that I need to work on the client, but need server authority to make sure the right weapon spawns

#

This (Self) is the child actor of another actor

📎 unknown.png

#

MesddataContainer is owned by the character

#

📎 unknown.png

severe widget Apr 27, 2018, 12:02 AM

#

listen server?

glacial pollen Apr 27, 2018, 12:03 AM

#

which is ran in the characters begin play, using Has Auth here

📎 unknown.png

#

No, dedicated

#

All this works fine If I do this from the main menu (not connecting to a server)

#

The server and client both have MeshDataContainers

#

And each MeshDataContainer has a ChildActor prebuilt into the BP

#

However, the childactor's class is set at runtime

#

📎 unknown.png

#

Do I need to set the owner manually? Wouldn't this already be set since MeshDataContainer already owns the child actor?

#

I mean replication should give the client his copy... yea?

glacial pollen Apr 27, 2018, 12:44 AM

#

So, it appears that the Set Child Actor node, does not set the owner....

brittle sinew Apr 27, 2018, 12:46 AM

#

Yeah, that's expected. Actors don't consider parent components when looking for owning connections

glacial pollen Apr 27, 2018, 1:02 AM

#

Well its working when not connected to a server, I still says its replication

brittle sinew Apr 27, 2018, 1:03 AM

#

That's because when an actor doesn't have an owner, the function is called on the local instance that made the call.

#

When you're calling it on your client, the only place to call it is the client.

#

If you want to call something on an owning client from the server, it needs to have an owner that defines that owning client.

#

Like you found out, you need to do that manually.

glacial pollen Apr 27, 2018, 1:05 AM

#

The client is the one making the call, but I have to manually set the ownership from the server side, right after spawning, which still doesnt work because it appears the client still doesnt know it owns a replicated child actor - actor

brittle sinew Apr 27, 2018, 1:06 AM

#

What are you setting the owner to?

glacial pollen Apr 27, 2018, 1:07 AM

#

📎 unknown.png

#

I get the owner of the child actor component

#

Using print string, I can SEE the correct owner
This works solo, but as soon as I go network, the server knows the owner, but the client still doesn't

#

InitModule calls:

📎 unknown.png

#

So
Server sets child actor class
Server sets child actor - actor's owner
Server calls InitModule on it
InitModule calls AddWeapon on client

Client doesn't know who the owner is

#

I could just use the construct from object (with proper owner), and attach it and set a reference variable, but damn man this should work exactly the same, but save me from doing all this:

#

📎 unknown.png

#

Basically the new owner is just not replicated to the client

#

Or I could just make two separate calls to set owner, once on server, and once on client

#

but even with the replicated variable work around I still get this :

📎 unknown.png

#

Why is this running on the server?

vital steeple Apr 27, 2018, 3:42 AM

#

anyone been able to create a dedicated server exe? ive been following some guides but neither of them work. i designed my mp to work around a dedicated server but i dont think i can create one from inside the client itself

toxic meteor Apr 27, 2018, 3:47 AM

#

@vital steeple This should be what your looking for: https://wiki.unrealengine.com/Dedicated_Server_Guide_(Windows_%26_Linux)#1._Download_the_Unreal_engine_from_source
Just follow the guide & it should work

Dedicated_Server_Guide_(Windows_%26_Linux)

vital steeple Apr 27, 2018, 3:54 AM

#

yeah thats one of the ones i followed

toxic meteor Apr 27, 2018, 3:55 AM

#

That's the one I used & it works fine

vital steeple Apr 27, 2018, 3:55 AM

#

hrm

#

i cant select my source build of ue4

toxic meteor Apr 27, 2018, 3:55 AM

#

are you trying to use advanced systems plugin?

vital steeple Apr 27, 2018, 3:55 AM

#

lets me select, just doesnt have the source build as an option

toxic meteor Apr 27, 2018, 3:55 AM

#

Did you launch the sourecbuild

#

like to the menu where you can create/select a project

vital steeple Apr 27, 2018, 3:56 AM

#

when i do that step (local windows debugger)

#

it just loads my project up instantly

#

hrm

toxic meteor Apr 27, 2018, 3:58 AM

#

double check you did all the steps properly I guess, I never encountered that problem

vital steeple Apr 27, 2018, 3:58 AM

#

so the biggest difference is i didnt start from github

#

i started from my project

#

ill start fresh

#

this seems unnecessarily round about though, for somethign that seems like it should be more streamlined

#

but what do i know 😃

#

like will you have to run through this process and do a custom build EVERY time the engine updates?

toxic meteor Apr 27, 2018, 4:00 AM

#

I'm not sure, but you normally dont update to the newest engine version right away