#multiplayer | Unreal Source | Page 420

winged badger Sep 14, 2018, 2:48 PM

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as long as you send a reliable RPC before Detach call, that triggers the OnRep which triggers the OnDeath

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then controller can't be NULL at that point in execution

thin stratus Sep 14, 2018, 2:51 PM

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I think however they tear off the Pawn when dying at the very start already

jolly siren Sep 14, 2018, 2:52 PM

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yeah ShooterGame does a tear off in OnDeath too

thin stratus Sep 14, 2018, 2:54 PM

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Yeah they do


// In Died()
bTearOff = true;
....
PlayDying();

// In PlayDying()
GetWorldTimerManager().SetTimer(DeathSoundHandle, this, &AUTCharacter::PlayDeathSound, 0.25f, false);

// In PlayDeathSound()
UUTGameplayStatics::UTPlaySound(GetWorld(), CharacterData.GetDefaultObject()->DeathSound, this, SRT_None, false, FVector::ZeroVector, NULL, NULL, false, SAT_PainSound);

And that last line leads you to the Statics file I send

jolly siren Sep 14, 2018, 2:56 PM

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Seems like it would be cleaner to just not detach the PC when a character dies

zinc zealot Sep 14, 2018, 3:51 PM

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hey people

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📎 unknown.png

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for some reason

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Blueprint Runtime Error: Accessed None trying to read property K2Node_DynamicCast_AsThird_Person_Character from function: 'ExecuteUbergraph_PickPistol' from node: Branch in graph: EventGraph in object: PickPistol with description: Accessed None trying to read property K2Node_DynamicCast_AsThird_Person_Character

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does this make sense ?

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accessed none

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but its just the person who is in the collision

thin stratus Sep 14, 2018, 3:57 PM

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Yes it does, because you are querying the Actor pin the whole time

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If someone else overlaps in the mean time it'll no be valid anymore

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Make sure to save a ref

zinc zealot Sep 14, 2018, 3:57 PM

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thx 😃

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ahh so thats whats happening!

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cause

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it spawns very close to an actor

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my game is so bad programmed xd

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anyway

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thx cedric 😃

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its almost finished 😃

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this is the last thing to finish it i think

jagged sinew Sep 14, 2018, 4:09 PM

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How do I connect clients to an IP?

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I want to run a server on my IP, and allow other people to connect from anywhere in the world.

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I'm sure you use "open <domain name>" however, how do I make a client join?

zinc zealot Sep 14, 2018, 4:10 PM

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you need access to the console right ?

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i think

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then use a command

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i think its in the compendium ? im not sure

jagged sinew Sep 14, 2018, 4:11 PM

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you use an exec node

zinc zealot Sep 14, 2018, 4:11 PM

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im not so sure

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but depends

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are you using steam ?

jagged sinew Sep 14, 2018, 4:11 PM

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no

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I'm not using a subsystem yet

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I just want to start out by connecting people to a server hosted by me

zinc zealot Sep 14, 2018, 4:12 PM

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then idk... im very newb and i can only say about the steam subsystem xd

thin stratus Sep 14, 2018, 4:12 PM

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Doing open IPADDRESS will make him join

jagged sinew Sep 14, 2018, 4:12 PM

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and to host, I do open IPADDRESS too?

zinc zealot Sep 14, 2018, 4:12 PM

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xd

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Yeeah i think my game's done!

jagged sinew Sep 14, 2018, 4:16 PM

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gg

zinc zealot Sep 14, 2018, 4:16 PM

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ahah

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technically i can call myself a game dev right ? XD

jagged sinew Sep 14, 2018, 4:16 PM

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@thin stratus ok so, they both spawn but I can't see one another in-game

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"Run Dedicated Server" is selected, and 2 players.

thin stratus Sep 14, 2018, 4:17 PM

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You don't want to do this from within the Editor though

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And no, hosting is doing via open LevelName?listen

jagged sinew Sep 14, 2018, 4:18 PM

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so I don't need any console commands in the host button?

zinc zealot Sep 14, 2018, 4:18 PM

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uuh xd

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you need the open level right ?

jagged sinew Sep 14, 2018, 4:19 PM

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📎 unknown.png

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I have got this, and it is called.

zinc zealot Sep 14, 2018, 4:20 PM

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hmm

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the way cedric said

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maybe in options you should try

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Online?listen

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cause from what i heard ? is to seperate options

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thats what i assume

thin stratus Sep 14, 2018, 4:23 PM

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The node opens the Level "Online" with the options "listen"

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That's fine

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(if your level is called Online)

jagged sinew Sep 14, 2018, 4:25 PM

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oh

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so now I have:

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open Online?listen

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and

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well that is for hosting

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and for joining:

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Open Level

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Correct?

thin stratus Sep 14, 2018, 4:28 PM

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No

jagged sinew Sep 14, 2018, 4:29 PM

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I also have a console command

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open <ip>

thin stratus Sep 14, 2018, 4:29 PM

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open Online?listen is for ListenServers. So you need to make sure that you actually host with a Client and don't use DedicatedServers.
If you want to use DedicatedServers, then this is the wrong approach.
for connecting it's open <ip>

jagged sinew Sep 14, 2018, 4:30 PM

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how do I do it with DedicatedServers?

zinc zealot Sep 14, 2018, 4:31 PM

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xd

thin stratus Sep 14, 2018, 4:32 PM

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DedicatedServers have to be build from Source

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Check google for that please

jagged sinew Sep 14, 2018, 4:33 PM

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Mk so I'm gonna try without

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So how do I test this now? You said not to use the editor.

zinc zealot Sep 14, 2018, 4:33 PM

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@thin stratus xD

jagged sinew Sep 14, 2018, 4:33 PM

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Why do you keep saying "xd" btw

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rip

zinc zealot Sep 14, 2018, 4:33 PM

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wells

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its an emote

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and i like

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it

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so i do it

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puts xd

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xd

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sry :d

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@thin stratus now that i finished my game can i call myself a game dev ? 😂

thin stratus Sep 14, 2018, 4:38 PM

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(: you could stop spamming so much and tagging me all the time. I'm working and it's unnecessary for these matters.

bitter lintel Sep 14, 2018, 5:41 PM

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How do you "query for the actor's most outer owner"?

jolly siren Sep 14, 2018, 5:59 PM

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Well you can always just loop and traverse upwards until owner is null

bitter lintel Sep 14, 2018, 6:00 PM

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Using GetOwner()?

jolly siren Sep 14, 2018, 6:01 PM

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yes

bitter lintel Sep 14, 2018, 6:15 PM

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I'm still not getting pawns to be recognized as owned. How do I check ownership?

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if (objectToSync->GetOwner() == UGameplayStatics::GetPlayerController(GetWorld(), 0))

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is never true on clients for Client Pawn but I can send server RPCs from it so I know the client owns it.

north trout Sep 14, 2018, 8:16 PM

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Does somebody has some experience with FSavedMove_Character? The Connection for me times out after 240s because it has collected more than 96 SavedMoves. Do you have to manually remove SavedMoves from the array?

zinc zealot Sep 14, 2018, 9:32 PM

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heyppl

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i can use the developers id from steam subsystem to play online with some friends right ?

winged badger Sep 14, 2018, 10:31 PM

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@bitter lintel there is no guarantee its Owner is the PlayerController

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if its a component on possessed Pawn, GetOwner() returns that Pawn

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its NetOwner is still the PlayerController

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and those GamePlayStatics can break server side

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its a bad way to go around it

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IsLocallyControlled() for Pawn reference, IsLocallController() for the PC

twin vault Sep 14, 2018, 10:58 PM

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On a replicated variable, does the replication occur to all clients at once? is there a way to check if it already replicated?

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My problem is that i have a bool variable inside the struct that can change too fast, and sometimes the client wont see it changed due to replication not happening every frame

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and i cannot use a RPC

sharp pagoda Sep 14, 2018, 11:12 PM

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You can't guarantee that a replication happens to all clients at once, the update will be sent as soon as possible over the wire but after that it's no telling what obstacles that packet will have to go through to get to the destination. You are only sure of the fact that it will get there, eventually (unless a network error occurs). Why would you need a variable to change every frame and to be replicated? @twin vault

twin vault Sep 14, 2018, 11:23 PM

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its not every frame, but sometimes it changes to true and to false before replication occurs

twin vault Sep 14, 2018, 11:40 PM

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ok that was more of a structural problem, fixed by changing how stuff worked

zinc zealot Sep 14, 2018, 11:55 PM

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guys i can use the developers id from steam subsystem to play online with some friends right ?

north trout Sep 15, 2018, 12:22 AM

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yeah you can use the spacewar thingy @zinc zealot

zinc zealot Sep 15, 2018, 12:23 AM

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thx

bitter lintel Sep 15, 2018, 3:54 AM

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@winged badger
if (const APlayerController *aPC = Cast<APlayerController>(GetOwner()->GetNetOwner()))
is never true for an actor component on RollingBall or ThirdPersonCharacter in the default examples.
Am I going about it wrong?

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I'm trying to find out if any Actor is able to send RPCs from the client to the server (is owned locally).

sharp pagoda Sep 15, 2018, 5:31 AM

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@bitter lintel To test if an actor is locally owned, used IsLocallyControlled()

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GetController

bitter lintel Sep 15, 2018, 5:33 AM

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What if it's not a pawn?

static lynx Sep 15, 2018, 7:31 AM

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So I'm using blueprints. Trying to spawn actors on the server. All actors have replication set to true. They work if I don't use a dedicated server PIE, but they don't work on a dedicated server PIE. They spawn on the server part, but not the client. Any idea why?

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I'm also setting replication to true on those spawned actors from the actor that is spawning them

mighty rover Sep 15, 2018, 8:58 AM

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I'm having an issue with my client side cap stack sliding (https://www.youtube.com/watch?v=JL4HItJt8a0&hd=1) any ideas on what's happening? Should I just turn off physics on the client side and just have it replicate from server?

YouTube

Jordan Parsons

Huli Stack Sliding Issue

Having issues with the stack sliding on the connecting client side. Once the server hits the stack, the replication catches up, but it shouldn't be sliding.

▶ Play video

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sorry for the loud sound on the video for the main menu

bitter lintel Sep 15, 2018, 9:00 AM

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You will not want to do physics on two separate machines, they will pretty much never be equal.

winged badger Sep 15, 2018, 9:00 AM

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@bitter lintel if (Role == ROLE_AutonomousProxy)

bitter lintel Sep 15, 2018, 9:00 AM

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You'll need to sync it for sure. Are you doing Replicates Movement?

mighty rover Sep 15, 2018, 9:02 AM

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let me double check, still newbie to multiplayer implementation, so pulling a few cranks here, turning a few knobs there lol

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right now, the Stack_BP is being spawned via the GameState with a Spawn Actor Node on BeginPlay

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The Stack_BP handles spawning 20 individual Cap_BP's on start, then as they flip over they get removed accordingly. The physics is handled within the individual Cap_BP settings.

bitter lintel Sep 15, 2018, 9:06 AM

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Look at your cap_BP in the blueprint editor.

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On the right side there should be a section called "Replication". Is "Replicate Movement" checked?

mighty rover Sep 15, 2018, 9:07 AM

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Yup, replicate movement is checked

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📎 unknown.png

winged badger Sep 15, 2018, 9:08 AM

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which MovementComponent, if any is on Cap_BP? what does it derive from?

mighty rover Sep 15, 2018, 9:08 AM

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staticmeshcomponent

bitter lintel Sep 15, 2018, 9:11 AM

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@winged badger if (Role == ROLE_AutonomousProxy)
is never true on the Client when it is an Actor spawned by the server but then ownership is changed to a client.

winged badger Sep 15, 2018, 9:12 AM

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changed how?

bitter lintel Sep 15, 2018, 9:13 AM

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GetOwner()->SetOwner(UGameplayStatics::GetPlayerController(GetWorld(), 1));

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To change it to the first connected client (This happens on the server).

winged badger Sep 15, 2018, 9:16 AM

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bool AActor::HasNetOwner() const
{
    if (Owner == NULL)
    {
        // all basic AActors are unable to call RPCs without special AActors as their owners (ie APlayerController)
        return false;
    }

    // Find the topmost actor in this owner chain
    AActor* TopOwner = NULL;
    for (TopOwner = Owner; TopOwner->Owner; TopOwner = TopOwner->Owner)
    {
    }

    return TopOwner->HasNetOwner();
}

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this? Actor.cpp

bitter lintel Sep 15, 2018, 9:16 AM

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@mighty rover I think "Replicate Movement" isn't 100% deterministic. Not sure if this is your actual issue though. From tests I've done: Unreal's Replicate Movement seems to track all movement from the server and transmits it to all clients but it seems to stop caring once the actor stops moving on the server. Then you can hit it on clients and it will get off, but once it starts moving on the server again, it syncs back up.

mighty rover Sep 15, 2018, 9:18 AM

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Yeah, that's the behavior that it appears to be having. Would it be beneficial to have a check on Cap_BP spawn, where if server keep physics on, if not, turn it off?

winged badger Sep 15, 2018, 9:20 AM

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@bitter lintel APlayerController overrides the function with return true;

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you can try making Caps full Pawns with their own movement components (something that performs corrections over network, like CMC), although it feels like an overkill

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or you can find whatever setting controls drag/friction for physics, and crank it up

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hope for the best

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writing your own MovementComponent with basic networking is probably the most sane way to go, a very lightweight version of CMC

bitter lintel Sep 15, 2018, 9:27 AM

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How do I call HasNetOwner()? I can't seem to access it from anywhere. I wish they had examples in the Unreal docs.

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It seems like it just checks if it has an owner though, not if it is locally owned.

winged badger Sep 15, 2018, 9:28 AM

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not from BP

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not exposed

bitter lintel Sep 15, 2018, 9:28 AM

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I only c++!

winged badger Sep 15, 2018, 9:28 AM

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    /**
     * Does this actor have an owner responsible for replication? (APlayerController typically)
     *
     * @return true if this actor can call RPCs or false if no such owner chain exists
     */
    virtual bool HasNetOwner() const;

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its protected:

bitter lintel Sep 15, 2018, 9:29 AM

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So I need to override it?

winged badger Sep 15, 2018, 9:29 AM

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for some reason, because making a const function protected makes perfect sense

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😦

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i'd wrap it

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add another function that calls his one, properly exposed to the outside

bitter lintel Sep 15, 2018, 9:30 AM

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Will that tell me if it is locally owned though or if it just has an owner?

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exposed to the outside?

winged badger Sep 15, 2018, 9:30 AM

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can't call it from outside the Actor or its child classes

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as it is

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it the last in the chain of owners is a PlayerController

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it will return true

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otherwise it will return false

bitter lintel Sep 15, 2018, 9:31 AM

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But how do I know if it's locally owned?

winged badger Sep 15, 2018, 9:32 AM

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you can use some of their code if you want that

bitter lintel Sep 15, 2018, 9:32 AM

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wuh?

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who's code?

winged badger Sep 15, 2018, 9:33 AM

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    AActor* TopOwner = NULL;
    for (TopOwner = Owner; TopOwner->Owner; TopOwner = TopOwner->Owner)
    {
    }

    return Cast<APlayerController>(TopOwner)->IsLocalController();

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epic's from that HasNetOwner() function

bitter lintel Sep 15, 2018, 9:33 AM

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ok, thanks a bunch

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time to test

winged badger Sep 15, 2018, 9:33 AM

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this is missing a null check

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i was lazy

bitter lintel Sep 15, 2018, 9:34 AM

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heh, ok

mighty rover Sep 15, 2018, 10:13 AM

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@bitter lintel @winged badger - thanks for the help. I was able to fix the sliding issue by putting a server check on beginplay within the Cap_BP. If client, turn off simulate physics for the cap, if server, keep simulate physics on. Now the server is the only one running physics and the client has no out of sync issues with the stack.

mighty rover Sep 15, 2018, 10:48 AM

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Only problem now, is I gotta figure out how to speed up the cap replication on the client side. It's just really laggy when it's updating the cap positions. Physics is all accurate, just takes a few ms for it to catch up to what's really happening and it's not nearly as smooth: https://www.youtube.com/watch?v=xoUFc-lr2P0&feature=youtu.be

YouTube

Jordan Parsons

Huli Multiplayer Sample #1

Basic multiplayer working between PC and Mobile phone.

▶ Play video

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what's the max you think I could push the Net Update Frequency and Net Priority to?

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or what suggestions does anyone have to make that gameplay on the client side a bit more smooth? (listen server implementation atm)

bitter lintel Sep 15, 2018, 11:00 AM

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Is it because you turned physics off or was it doing this before?

plain flume Sep 15, 2018, 11:55 AM

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Hello. I am studying this right now: https://api.unrealengine.com/INT/API/Runtime/Engine/GameFramework/AGameModeBase/GetSeamlessTravelActorList/index.html I'm not quite sure what does it mean if I add some new actor to SeamlessTravelActorList. Does the actor spawn in the same location it was in previous map with all the same properties or what does it actually do when adding new actors to that list?

AGameModeBase::GetSeamlessTravelActorList

Called on server during seamless level transitions to get the list of Actors that should be moved into the new level PlayerControllers, Role < ROLE_Authority Actors, and any non-Actors that are inside an Actor that is in the list (i.e. Object.Outer == Actor in the list) are a...

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https://docs.unrealengine.com/en-us/Gameplay/Networking/Travelling Here is the list of actors that are in the list by default and that makes sense, but I don't know what it means if I want for example add inventory item to the list

twin juniper Sep 15, 2018, 3:11 PM

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hello guys I have a question for the multiplayer game-is there a way to make multiplayer game or multiplayer system like in the game Fortnite or Conan Exciles with the free server from Microsoft?

fringe dove Sep 15, 2018, 9:44 PM

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which event/callback can I look for on server to find when a client disconnects?

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(and is there a separate one for clean disconnect vs timeout?)

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AGameMode::HandleDisconnect doesn't seem to tell you which player disconnected

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AGameMode::Logout seems to be the common case for a clean disconnect, and does give the controller that is logging out

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not sure if Logout is called for a timeout yet

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it also broadcasts FGameModeEvents::GameModeLogoutEvent in AGameModeBase

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Logout seems to get called anytime APlayerController::Destroyed is called on server, so hopefully that happens with a timeout too

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player state seems to be kept alive for a while after a timeout in InactivePlayerStates

fringe dove Sep 15, 2018, 10:35 PM

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anyone know specifics on what net.DelayUnmappedRPCs does?

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it says " "If >0 delay received RPCs with unmapped properties"

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does that mean delay the RPC receipt if it has parameters pointing to uobjects that haven't been replicated over yet?

mighty rover Sep 16, 2018, 12:05 AM

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@bitter lintel - it was doing this before.

sharp pagoda Sep 16, 2018, 1:35 AM

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I have a steam dedicated server that advertises and is visible in the master server list, but only when the match state is WaitingToStart. Once the match state changes to InProgress, the advertising stops despite having bAllowJoinInProgress enabled during session creation. Any ideas?

jolly siren Sep 16, 2018, 2:06 AM

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Does anyone know how to check if an actor is part of a replay?

fringe dove Sep 16, 2018, 4:05 AM

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@jolly siren not sure this is the best way, but: https://api.unrealengine.com/INT/API/Runtime/Engine/GameFramework/AActor/GetNetConnection/index.html

AActor::GetNetConnection

Get the owning connection used for communicating between client/server

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And then see if that is a UDemoNetConnection

unique thunder Sep 16, 2018, 4:09 AM

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Any way to minimize a hit to other client's CPUs from tick events run on client-auth actors I use?

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I couldn't understand why others were being affected but I figure because the server replicates the tick changes, even though I run the initial calculations, other clients are still receiving them and from everyone.

left marsh Sep 16, 2018, 6:09 AM

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I am testing in editor with a dedicated server, yet somehow my server is detecting my controller inputs locally.

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Do I have something set up in a weird way?

mighty rover Sep 16, 2018, 10:26 AM

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@bitter lintel @winged badger - fixed the horrible lag on the client side caps by reenabling physics on all of the caps within the stack (via multicast event) after any player throws the hitter cap. It's smooth sailing now on both the client and listen server instances

graceful cave Sep 16, 2018, 11:35 AM

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is there a way to get NetServerMaxTickRate in BP? if its not exposed to BP, how can i get it in C++?

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using 4.20.3

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i want to get it on a dedicated server

ember needle Sep 16, 2018, 12:50 PM

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All, I have a slotting menu that uses a GamMode with seamless travel enabled. When ready, all players enter the map. When done, the GameMode calls a servertravel again, this time back to the slotting menu. All clients crash with this: https://pastebin.com/WAqqyPzZ

Pastebin

[2018.09.16-12.43.31:013][432]LogWorld: SeamlessTravel to: /Game/B...

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any ideas?

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https://gyazo.com/73d2b713033d672179123dd6cd5c5b22

Gyazo

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https://gyazo.com/9fc295ff829494e5a9e19d6fba835385

Gyazo

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Ok I think I might have it... SeamlessTravel to: /Game/Blueprints/Widgets/Menus/OSA_Menu_SlotSelection

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it's traveling to a widget that has the same name of a level....

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I assumed it would know the difference between a widget and a level. I'm going to try renaming everything

zinc zealot Sep 16, 2018, 2:25 PM

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Guys i just started using advanced sessions and i wanted to know how to use the steam overlay to invite friends to sessions

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all i find in youtube is like a way to create a steam overlay so to say

twin juniper Sep 16, 2018, 3:46 PM

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when server opening level all players disconnecting, how fix that?

graceful cave Sep 16, 2018, 4:26 PM

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@twin juniper run the console command servertravel mapname on the server instead of openlevel

graceful cave Sep 16, 2018, 4:49 PM

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has anyone else had net issues in 4.20 that werent there in 4.19?

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my log is printing LogNetPlayerMovement: Warning: CreateSavedMove: Hit limit of 96 saved moves (timing out or very bad ping?) every few seconds when i connect to a server and everything is really laggy despite low ping and being connected to a dedicated server running on my own computer

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nothing in my project's code changed after updating my engine except a few things unrelated to networking

zinc zealot Sep 16, 2018, 6:32 PM

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roof

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OvO?

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@rotund wedge

sharp pagoda Sep 16, 2018, 6:48 PM

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I have a steam dedicated server that advertises and is visible in the master server list, but only when the match state is WaitingToStart. Once the match state changes to InProgress, the advertising stops despite having bAllowJoinInProgress enabled during session creation. Any ideas?

zinc zealot Sep 16, 2018, 6:53 PM

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im new to advanced sessions xd

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@sharp pagoda

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do you know about advanced sessions ?

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cause i wanna do this

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I wanna invite friends via steam overlay to my session

winged badger Sep 16, 2018, 6:54 PM

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@sharp pagoda with listen servers, joining a match in progress via Steam worked out of the box

sharp pagoda Sep 16, 2018, 6:54 PM

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Joining is not the issue, getting it to advertise while the match is in progress is what I'm trying to get.

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I found some stuff in GameSession.cpp:59 that I think is causing it to stop advertising

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Judging from this code, I'm not supposed to manually start a session but let the gamemode start it for me?

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In GameSession::HandleMatchHasStarted()

FOnlineSessionStartComplete CompletionDelegate = FOnlineSessionStartComplete::CreateUObject(this, &AGameSession::OnStartSessionComplete);
UOnlineEngineInterface::Get()->StartSession(World, SessionName, CompletionDelegate);

bleak lily Sep 16, 2018, 9:35 PM

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https://gyazo.com/887fd141237ff414f90acdad5d1c1790 hey so I have an issue where this isnt doing anything in the gamemode

Gyazo

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I had a spawn system that worked in it but for some reason this doesnt do anything

vital steeple Sep 17, 2018, 1:28 AM

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seems like unreliable multicasts are so... unreliable, i feel hesitant to use them. seems like it almost never fires... when i try to look at my net stats, everything seems ok :/

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is that common or is multicast not firing (when unreliable) a sign that net traffic is being saturated

grand kestrel Sep 17, 2018, 1:52 AM

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Wouldn't know, we use them in extremely rare cases, mostly using replication and repnotify

vital steeple Sep 17, 2018, 3:50 AM

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yeah i find myself using them far less often, now that ive worked more with replication

rose egret Sep 17, 2018, 6:34 AM

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AIController exist only on server yes? so why APawn has APawn.Controller as replicated property 😃

manic pine Sep 17, 2018, 9:49 AM

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in case the pawn is controlled by a client

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it wont actually replicate the controller itself though, only a reference to it... and since the AIController isnt replicated, it'll be null on clients

winged badger Sep 17, 2018, 10:42 AM

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you can turn off OnlyRelevantToOwner

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then it would replicate just fine

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and turn on Replicated, ofc

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override of IsNetRelevantFor would make it replicate to just one client, too

unique thunder Sep 17, 2018, 11:02 AM

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@manic pine hey that RepNotify you helped me set up doesn't seem to be working ;/ I can't screenshot right now, I'll do it in like 5 min - maybe you can see if I fucked it up

manic pine Sep 17, 2018, 12:59 PM

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@unique thunder sure

twin vault Sep 17, 2018, 1:51 PM

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is voice chat enabled by default? im hearing my voice testing with steam...

unique thunder Sep 17, 2018, 1:52 PM

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@manic pine

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📎 unknown.png

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The idea was to send a RepNotify and only trigger the visibility for other players who shared the same Team variable as me.

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It works fine when I test local but not multiplayer.

manic pine Sep 17, 2018, 1:54 PM

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that looks good i think

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if its not working in mp then the var is not being repped ye

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whats the replication settings on VivoxTalking

unique thunder Sep 17, 2018, 1:57 PM

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📎 unknown.png

#

That bool is from the Vivox Participant Speech Detected node

#

It's determined on Tick inside the playercontroller

#

I can confirm that it does get to the correct controlled pawn (CurrentBody), just doesn't replicate in multiplayer

#

And the VivoxCanTalk? bool is set to true when the player joins a channel.

#

Can confirm that works, as well.

manic pine Sep 17, 2018, 1:58 PM

#

your server is setting VivoxTalking = true right

#

in SpeechDetection presumably

unique thunder Sep 17, 2018, 2:01 PM

#

📎 unknown.png

#

Yes, reliably

manic pine Sep 17, 2018, 2:03 PM

#

does the var have any Replication conditions?

unique thunder Sep 17, 2018, 2:04 PM

#

None

#

Everything seems accurate, I'm just not sure about the way it's checking for == team

manic pine Sep 17, 2018, 2:04 PM

#

CurrentBody is your pawn

unique thunder Sep 17, 2018, 2:04 PM

#

Yes, active pawn at any given time

manic pine Sep 17, 2018, 2:05 PM

#

youve confirmed that SpeechDetection runs?

unique thunder Sep 17, 2018, 2:05 PM

#

Yes, I can see the visibility change when I test offline

manic pine Sep 17, 2018, 2:05 PM

#

no i mean, in mp

#

confirm that server is receiving speechdetection call from client

unique thunder Sep 17, 2018, 2:06 PM

#

alright, will run a test and know in a couple hours. I'll deploy with the team check removed just to see if that works

#

as well

manic pine Sep 17, 2018, 2:06 PM

#

e.g. in that bp you posted above, just add in a Print node before branch

#

yeah, the team check is the other likely suspect

#

along with speechdetection

#

but the team check should be fine if pawns are replicating the team var normally and the team class itself is replicated

unique thunder Sep 17, 2018, 3:32 PM

#

yeah team var is being checked/used in a few different places and it replicates everywhere fine

#

should be able to run a test soon

torpid nymph Sep 17, 2018, 4:12 PM

#

I'm getting [2018.09.17-16.11.26:388][ 0]LogOnline: Warning: STEAM: Failed to initialize Steam, this could be due to a Steam server and client running on the same machine. Try running with -NOSTEAM on the cmdline to disable. [2018.09.17-16.11.26:389][ 0]LogOnline: Display: STEAM: OnlineSubsystemSteam::Shutdown() [2018.09.17-16.11.26:389][ 0]LogOnline: Warning: STEAM: Steam API failed to initialize! [2018.09.17-16.11.26:389][ 0]LogOnline: Display: STEAM: OnlineSubsystemSteam::Shutdown()

#

I'm trying to run a steam dedicated server

#

anyone successfully setup the dedicated server to run with steam? I'm trying to run it on an instance so I don't have steam on the computer running the server, with steam on it doesn't give this warning, but that kind of defeats the purpose of dedicated servers if I need to have an account for each and every dedicated instance that I have

north trout Sep 17, 2018, 8:56 PM

#

talk to smart people of ue4 why does my custom movement timeout after 240s (96 Saved Moved) i dont really get it any pointers?

#

or examples? i looked into unreal tournament but i can figure it out

glacial yacht Sep 17, 2018, 9:25 PM

#

@torpid nymph i think you need to run Steam. I had issues today in a similiar scenario. Dedicated server grabbed Steam info before client and the client couldnt get the Steam info bc it was used already ..
To another point tho .. im really frustrated with unreal networking, i asked on here before about an issue i have with my ipv6 dslite connection and the inability to host games for clients outside of my home network. I tried something from a user here , setting windows plattform to ipv6 , which resulted in me being able to join my ipv6 from within my network but not from outside.. ( havnt tested from ipv6 to my ipv6 tho ). Also to my understanding, in ipv6 a port opens (if forwarded ) if an application is listening and with windows engine settings set to ipv6 and equally on ipv4 the port just wont become reachable . In contrast , a simple node or python socket listener works flawlessly. really not sure how to proceed here -.-

graceful cave Sep 17, 2018, 10:36 PM

#

is there a way to optimize a weapon that has the server spawn 10 actors per second?

#

right now it makes the inrate increase by about 3000 bytes/sec while firing

twin juniper Sep 17, 2018, 11:39 PM

#

The default online subsystem steam

#

Seems very poorly developed

#

Does anyone know of any alternatives?

grand kestrel Sep 18, 2018, 1:29 AM

#

@graceful cave use an object pool

red glade Sep 18, 2018, 1:31 AM

#

@twin juniper gamesparks

weary saffron Sep 18, 2018, 4:47 AM

#

Hi people! I try call multicast event in my GameInstance from server GameMode. This event working on server but not working on clients.

What am I doing wrong?

📎 unknown.png

winged badger Sep 18, 2018, 5:40 AM

#

GI is not and can not be replicated

fossil spoke Sep 18, 2018, 5:43 AM

#

@weary saffron Use the GameState instead.

weary saffron Sep 18, 2018, 5:48 AM

#

@fossil spoke @winged badger Oh my God! Ok, I'm using GameState. Thank you!

twin juniper Sep 18, 2018, 7:52 AM

#

Hey, I'm developing the Steam multiplayer, I'm pretty much done, but it doesn't work, can somebody help me please?

#

I can Share Screen in DM

late violet Sep 18, 2018, 8:31 AM

#

Anyone know how I can make engine calls (like tick) run only on the owned client? IE, I want AI tick to only be called on the server, and the Player tick only called on that client. I can't find anything I should if-check. Note: It can't be doing a Multicast as I need it to be that frame.

north trout Sep 18, 2018, 9:22 AM

#

can you not just check the the role in your tick function? @late violet

late violet Sep 18, 2018, 10:14 AM

#

I tried checking ROLE_AutonomousProxy but this seemed to not work on the server. Also, I need this to work in a standalone version too. I was hoping there was a method like "IsLocallyOwned" or something.

north trout Sep 18, 2018, 11:47 AM

#

@late violet what about

if(Role == ROLE_Authority)

#

that should do it? for the server

twin juniper Sep 18, 2018, 11:56 AM

#

Can somebody please help me in DM? I've programmed it all, but I need help

#

please please please

hot ridge Sep 18, 2018, 1:56 PM

#

I am trying to setup the option for the host to return to the top main menu (sets up if you want to host or search for game) but after hosting a game,and then going back to the main menu, the game freezes

#

I am using Open Level

#

I have the name of the Main Menu as the map to load.

#

I am doing it in the player pawn, should I be doing it in the Game Mode instead?

#

It dosn't need to bring clients along with the host as this acts somewhat as a reset

#

The Main Menu has a different Game Mode than the lobby people can join

twin juniper Sep 18, 2018, 2:28 PM

#

Wait wait wait

#

Does it work for you??

hot ridge Sep 18, 2018, 2:35 PM

#

I've been using Open Level for connecting online with no problems

#

but going back to the lobby just dosnt work

late violet Sep 18, 2018, 2:38 PM

#

@north trout That'll work for the actors owned by the server, yes, but I want to have the code running on the thing that owns that actor, IE: AI would run on the server tick, and the Player would run on the client Tick.

north trout Sep 18, 2018, 2:44 PM

#

and why don't u just use?

if(Role == ROLE_SimulatedProxy)
{ // Client Code here
}

if(Role == ROLE_Authority)
{ // ServerCode here
}

late violet Sep 18, 2018, 2:46 PM

#

On Tick, I'm checking if something should hit that frame, but I want the code for checking that to run locally for that actor, meaning the detection code will run client-side for players, however AI ones will be running server-side, so the two different roles doesn't help here.

#

What I want is something like this

{
    if (!IsActorLocal())
    {
        return;
    }

    // Do My Code Local to the Actor
}```

#

It doesn't matter if it's server or client-side, it depends if it's running locally owned

north trout Sep 18, 2018, 2:49 PM

#

oh

late violet Sep 18, 2018, 2:49 PM

#

PlayerController's have a IsLocallyControlled() flag. What I want is something like that for Actors

north trout Sep 18, 2018, 2:51 PM

#

but you kinda do that with the Role if check

#

ROLE_AutonomousProxy will always be the client that owns the actor

late violet Sep 18, 2018, 2:53 PM

#

I have an Actor I spawn on the server, but set it's owner to my character, and in the Tick of that actor is where I want to know if it's running local. Will the Role be AutonomousProxy on the server, if it's owned by an AI pawn, and not a Player pawn?

#

Currently I can do a check that I don't like, but works by checking the NetMode, and seeing if it's standalone, or if not, check the NetOwningPlayer is null
netMode == NM_Standalone || GetNetOwningPlayer() == nullptr

north trout Sep 18, 2018, 2:56 PM

#

nah that probably wont work can you try setting some bool variable for example Owned Locally and the ncheck if the local playercontroller owns that actor?
like this?

void AMyActor::IsLocalActor()
{
   bool OwnedLocally = IsOwnedBy(UGameplayStatics::GetPlayerController(this, 0));
}

#

there is a function called IsOwnedBy in the Actor class should be what you want

late violet Sep 18, 2018, 2:57 PM

#

Interesting, that'll work for client-side ones, but AI ones will always return false right? Both on server or client

#

I noticed that in a dedicated server environment, the NetOwningPlayer is always null when the actor is running where it's owner is

north trout Sep 18, 2018, 2:59 PM

#

yeah i guess but for the server you can just do the Role check

#

thats probably the easiest ^^

late violet Sep 18, 2018, 3:00 PM

#

I'll try that out when I get time, maybe when I tested that before, I missed one other line of code.

#

Thanks for helping! 😃

gloomy mural Sep 18, 2018, 3:02 PM

#

@shuzzle let me know if you solve the "96 saved moves" freeze up, I'm seeing he same thing and haven't debugged it yet

#

@north trout

north trout Sep 18, 2018, 3:02 PM

#

yeah iam dying inside iam gonna do a refactor soon today and will report back

hot ridge Sep 18, 2018, 3:06 PM

#

Any help with the open level problem I am having?

gloomy mural Sep 18, 2018, 3:16 PM

#

@hot ridge I think you need to do it in the GameMode, yeah

hot ridge Sep 18, 2018, 3:23 PM

#

Ok, I did just test in game mode with no luck.

#

I'm going to take a lunch then work on it

thin stratus Sep 18, 2018, 3:30 PM

#

Anyone a tip on how to do "Join with A Button" stuff for local splitscreen?

#

As far as I'm aware I need a PC to register the additional keypress and for that I need to call CreatePlayer

#

But that already creates the splitted screen

manic pine Sep 18, 2018, 3:52 PM

#

havent used the splitscreen stuff any, but i know there's a split screen type you can set

#

maybe you can force it to none?

#

/** Disables splitscreen, useful when game code is in menus, and doesn't want splitscreen on */
    bool bDisableSplitScreenOverride;

#

this is in gameviewportclient

thin stratus Sep 18, 2018, 3:57 PM

#

Will have a look

#

Thanks!

#

Also, replication graph docs are up

#

https://docs.unrealengine.com/en-us/Engine/Networking/ReplicationGraph

#

Looks really cool

#

(not much but it explains it highlevel)

manic pine Sep 18, 2018, 3:58 PM

#

ahh, finally

thin stratus Sep 18, 2018, 3:59 PM

#

tl;dr The Graph has Nodes and the Nodes make it possible to keep lists of Actors that send data on demand.

#

Without that system you have each Actor determine per function call if they are relevant or not

#

Which is bad when having a lot of actors

manic pine Sep 18, 2018, 4:01 PM

#

yeah, so its more for server cpu saving than anything

thin stratus Sep 18, 2018, 4:01 PM

#

Yus

#

Well also update times

#

Cause data is persistent between frames

#

So the overall amount of data send should also get better

manic pine Sep 18, 2018, 4:03 PM

#

i guess the reason it becomes a problem for fortnite is due to the massive amount of replicated building parts

slate veldt Sep 18, 2018, 4:03 PM

#

Hi all, can someone give me a brief overview of how ShooterGame uses the Online Events interface? For instance, in the player controller Event->TriggerEvent(*UniqueId, TEXT("MultiplayerRoundStart"), MultiplayerParams)

thin stratus Sep 18, 2018, 4:11 PM

#

Seems like the boolean for Splitscreen would completely disable the splitscreen

#

Hmpf

#

It's also based on Local Players, not even PlayerController

#

So I can't dodge it by not spawning a PC directly

manic pine Sep 18, 2018, 4:12 PM

#

ah yeah, i think the idea is for e.g. a lobby for local players, which decides which controllers get to join the actual map

thin stratus Sep 18, 2018, 4:13 PM

#

Yeah, hm

manic pine Sep 18, 2018, 4:17 PM

#

have you seen what kind of behavior it has if you just plug in a second controller while already in a map?

thin stratus Sep 18, 2018, 4:32 PM

#

Doesn't change a thing

#

I wonder how I can actually control different 3D widgets in Local Multiplayer

#

I set the owning Player to the Pawn's controller, but only one gets all input -.-

manic pine Sep 18, 2018, 4:33 PM

#

hmm seem to remember reading that keyboard, mouse and controller#0 are all assigned to first player

#

and then every subsequent controller to the next

thin stratus Sep 18, 2018, 4:33 PM

#

You can skip that and I have 2 controllers here anyway

#

Second controller doesn't work at all

#

-.- kill me now

manic pine Sep 18, 2018, 4:34 PM

#

hmm so you have a second controller, a second player and a second playercontroller

#

controller == physical controller

#

second playercontroller should be receiving input from the second physical controller no?

thin stratus Sep 18, 2018, 4:34 PM

#

Yeah that it probably does, but I need UMG Navigation to work with that

#

Each Pawn is preplaced. It's a lobby of sorts.
And each Pawn has a WidgetComponent

manic pine Sep 18, 2018, 4:36 PM

#

and focus is correctly set?

#

well, whatever 'correctly' means for focus... thats always seemed arbitrary to me

thin stratus Sep 18, 2018, 4:38 PM

#

I'll have to look into it. Not gonna spam the chat for that, but thanks already for your time

#

I'll probably slowly find points where I used Controller 0

#

:D

manic pine Sep 18, 2018, 4:42 PM

#

haha, yeah nasty that one

zinc zealot Sep 18, 2018, 5:08 PM

#

Does anyone know where i can start looking for a way to use steam overlay to connect to advanced sessions

thin stratus Sep 18, 2018, 5:16 PM

#

@zinc zealot Not sure how AdvancedSessions does it or if it does it at all, but you usually hook into the Steam Delegates.
And I think the GameInstance does that and has functions for "OnLobbyInviteReceived" or so.

#

However I never did more than that, so actually joining from the Overlay, no idea

#

Only invite wise

north trout Sep 18, 2018, 5:59 PM

#

why is my character movement (default character bp) jerky when walking sideways

subtle peak Sep 18, 2018, 6:00 PM

#

Hey where do I put code to handle game rules in MP? Like starting the round etc.. Game mode? Game instance?

zinc zealot Sep 18, 2018, 6:02 PM

#

thx

north stone Sep 18, 2018, 6:02 PM

#

https://docs.unrealengine.com/en-us/Engine/Networking/ReplicationGraph

zinc zealot Sep 18, 2018, 6:14 PM

#

whats Steam delegates ?

#

cant find it on youtube

azure karma Sep 18, 2018, 6:24 PM

#

Hello, is anyone here who knows how to fix the bug/problem, that cars from the car sample are not syncing their position correctly? I am using the latest GitHub 4.20 version.

twin vault Sep 18, 2018, 6:43 PM

#

@subtle peak gamemode, then call something on game state to warn the players the round started

#

@zinc zealot IOnlineSessionPtr SessionInterface = IOnlineSubsystem::Get()->GetSessionInterface(); OnJoinSessionCompleteDelegate.BindUObject(this, &UMyGameInstance::OnJoinSessionComplete); OnSessionUserInviteAcceptedDelegate.BindUObject(this, &UMyGameInstance::OnSessionUserInviteAccepted); SessionInterface->AddOnSessionUserInviteAcceptedDelegate_Handle(OnSessionUserInviteAcceptedDelegate); SessionInterface->AddOnJoinSessionCompleteDelegate_Handle(OnJoinSessionCompleteDelegate); SessionInterface->AddOnCreateSessionCompleteDelegate_Handle(OnCreateSessionCompleteDelegate);

#

there are more delegates

#

if you are asking what they actually are: used as callbacks when an action has been done on steam, such as inviting or getting invited, but not all steam callbacks are implemented as ue4 delegates, some are missing

zinc zealot Sep 18, 2018, 6:55 PM

#

im using blue prints can i still call those delegates ?

twin vault Sep 18, 2018, 6:58 PM

#

https://mordentral.bitbucket.io/AdvancedSessions/Advanced/AdvancedFriendsInterface/nodes/OnSessionInviteReceived.html

#

looks like it works

#

try it

#

never used the plugin

zinc zealot Sep 18, 2018, 8:32 PM

#

ty

vale ermine Sep 19, 2018, 1:23 AM

#

any way to replicate an actors component only to a specific client?

gloomy mural Sep 19, 2018, 2:50 AM

#

call a multicast function and then add an If == a specific playercontroller

vale ermine Sep 19, 2018, 2:53 AM

#

So if that is not possible my guess is I would replicate a few variables to the client then create an actor on that client with a flipbook component and move it and change it client side based on the replicated data. This way each client would not see the flipbook components for other clients but every client would see the flipbooks movement based on their camera perspective from the replicated data.

versed rock Sep 19, 2018, 6:03 AM

#

Is there some sort of documentation on understanding replication?

#

I just dont understand the whole replication, casting types of replication, permissions. so pretty much the whole multiplayer stuff

grand kestrel Sep 19, 2018, 6:13 AM

#

http://cedric-neukirchen.net/2017/02/14/multiplayer-network-compendium/ @versed rock

Cedric Neukirchen

eXi

Multiplayer Network Compendium

versed rock Sep 19, 2018, 6:26 AM

#

that sorta what i should be doing

📎 unknown.png

#

Only client that activates the interaction will see it rotate?

📎 unknown.png

fossil spoke Sep 19, 2018, 6:39 AM

#

You could either send an Multicast RPC that tells the other clients to start the spin or whatever, or you use a Replicated variable.

thin stratus Sep 19, 2018, 7:45 AM

#

If it's only an integer, use a RepNotify variable

#

Latejoiners ahoi

thin stratus Sep 19, 2018, 8:20 AM

#

Anyone an idea why "Possessed" calls twice for a Local Player?

#

Got 3 additional pawns in the scene (menu) for splitscreen players.
And for whatever reason the same pawn calls Possess twice

#

LogBlueprintUserMessages: [BP_Pawn_MainMenu_Middle_338] BP_Pawn_MainMenu_Middle | BP_PlayerController_MainMenu

LogBlueprintUserMessages: [BP_Pawn_MainMenu2] BP_Pawn_MainMenu2 | BP_PlayerController_MainMenu1
LogBlueprintUserMessages: [BP_Pawn_MainMenu2] BP_Pawn_MainMenu2 | BP_PlayerController_MainMenu1

LogBlueprintUserMessages: [BP_Pawn_MainMenu_1635] BP_Pawn_MainMenu | BP_PlayerController_MainMenu2
LogBlueprintUserMessages: [BP_Pawn_MainMenu_1635] BP_Pawn_MainMenu | BP_PlayerController_MainMenu2

LogBlueprintUserMessages: [BP_Pawn_MainMenu3] BP_Pawn_MainMenu3 | BP_PlayerController_MainMenu3
LogBlueprintUserMessages: [BP_Pawn_MainMenu3] BP_Pawn_MainMenu3 | BP_PlayerController_MainMenu3

#

They are auto possessed

#

The middle (first player) too though

#

Oookay, apparently they Possess, Unpossess and then Possess again

#

Whyyy

#

Disabling AutoPossess on one of the pawns removes the 3 calls. So it's all triggered just by that

#

-.-

#

Well, Tags it is

#

Iiiit still does it by just calling possess. What is wrong with LocalPlayers o.o

#

I love that this boolean is still totally wrong labeled

#

https://puu.sh/BxsH2/fb85e9d50b.png

#

It doesn't spawn a Pawn. It spawns a PlayerController. The Node itself also doesn't spawn a PlayerController but a LocalPlayer.

#

If you untick that boolean, you don't get a PlayerController and as far as I can see, only the first PlayerController gets actually created from the UWorld on Join.

#

You basically end up with 3 additional blackscreens if you untick that. Or I'm missing some additional node you can use

thin stratus Sep 19, 2018, 9:14 AM

#

No idea what calls Possess twice, but in 4.19 they don't filter that

#

4.20 actually has a "SamePawn" test

thin stratus Sep 19, 2018, 9:42 AM

#

Well, i don't know why, but if anyone ever has that problem of PostLogin or AutoPossess Possessing too often for LocalPlayers (Splitscreen), just use HandleStartingNewPlayer

#

¯_(ツ)_/¯

#

Guess it's a timing issue

hardy cape Sep 19, 2018, 9:58 AM

#

Anyone know how games with slow-moving projeciles (like a rocket launcher, grenades, etc.) deal with hit reg? Imagine you shoot a rocket at someone. On the server, it hits them. But on their screen, they dodged it due to client side prediction. If you lerp it to them it will create a noticable bend. This doesn't matter in most fps because you don't see fast-moving tiny bullets. Any thoughts?

manic pine Sep 19, 2018, 10:02 AM

#

youd wanna forward predict them on the client

#

if you forward predict by ping/2, they'll see where the projectile is on the server but not be able to dodge in time(since movement wont reach server before another ping/2)

#

if you forward predict by full ping, behavior on server and client will be similar

#

disadvantage being the time period immediately after the shot is made

#

since it'll instantly have to go from muzzle to velocity *forwardpredicttime

thin stratus Sep 19, 2018, 10:04 AM

#

You could have a look at the rockets from UT

#

I think they spawn a Rocket on the Client and then a Replicated one on the Server

#

And match them up once the Client receives the copy

#

Also, as long as you use dead reckoning for player movement, you can't really escape that dodging

#

You'd need to work with the data you have, so one update in the past

#

And then recreate that past frame on the server

hardy cape Sep 19, 2018, 10:09 AM

#

@manic pine aah, that makes sense

#

@thin stratus ill look into it, thanks

thin stratus Sep 19, 2018, 10:43 AM

#

Quick question: Number of LocalPlayers, how does one get that? Is there a Node with a weird name?

#

Despite GetAllActorsOfClass, which would only work for actual local Players

north trout Sep 19, 2018, 10:50 AM

#

for split screens @thin stratus ?

thin stratus Sep 19, 2018, 10:50 AM

#

Yeah

#

But they can be Splitscreens in an Online match

#

With ListenServers

#

Otherwise I would use GetAllActorsOfClass

#

But I fear to also get all other PCs when being the server

north trout Sep 19, 2018, 10:55 AM

#

thats a good question ^^ hm

#

what do you need exactly the amound of players?

#

would be easier to just get the gamestate and from there just work with the playerarray

thin stratus Sep 19, 2018, 10:58 AM

#

Cause I need to locally notify each player's UI

#

I could loop from 0 to 3 and check valid on the GetPC

#

But mäh

#

I think the UEngine class has a function

manic pine Sep 19, 2018, 10:59 AM

#

hmm there's the ULocalPlayer class

thin stratus Sep 19, 2018, 10:59 AM

#

"GetNumGamePlayers" but not sure

#

Yeah but LocalPlayers aren't exposed to BPs

#

Just checking before I expose something

#

Ah well, let's expose that GetNumGamePlayers function

north trout Sep 19, 2018, 11:02 AM

#

eh? isnt that the same as doing length on the PlayerArray from the GameState?

thin stratus Sep 19, 2018, 11:02 AM

#

It's used in the GameViewPortClass

#

So I don't think so

manic pine Sep 19, 2018, 11:03 AM

#

well you also have the player controllers you could just check if IsLocal

#

thats all exposed to bp i think

north trout Sep 19, 2018, 11:04 AM

#

or that

thin stratus Sep 19, 2018, 11:04 AM

#

Yeah but I would rather not use GetAllActorsOfClass if not needed

#

And GetNumGamePlayers seems to be correct

#

int32 UEngine::GetNumGamePlayers(UWorld *InWorld)
{
    return GetGamePlayers(InWorld).Num();
}

const TArray<class ULocalPlayer*>& UEngine::GetGamePlayers(UWorld *World) const
{
    const FWorldContext &Context = GetWorldContextFromWorldChecked(World);
    if ( Context.OwningGameInstance == NULL )
    {
        return HandleFakeLocalPlayersList();
    }
    return Context.OwningGameInstance->GetLocalPlayers();
}

#

So the GameInstance has the LocalPlayer list

manic pine Sep 19, 2018, 11:07 AM

#

hmm gameinstance doesnt have much bp exposed stuff does it

thin stratus Sep 19, 2018, 11:07 AM

#

Don't think so

#

But I can just use a functionlib

manic pine Sep 19, 2018, 11:09 AM

#

/** List of locally participating players in this game instance */
    UPROPERTY()
    TArray<ULocalPlayer*> LocalPlayers;

thin stratus Sep 19, 2018, 11:09 AM

#

Yeah it has the TArray and handles LocalPlayer,s but nothing exposed

manic pine Sep 19, 2018, 11:09 AM

#

was too much work adding a BlueprintReadOnly i guess

thin stratus Sep 19, 2018, 11:09 AM

#

Yeah saw the same just now haha

#

Na that's not the point

#

ULocalPlayer is not exposed

#

so they can't expose the Tarray of it

manic pine Sep 19, 2018, 11:09 AM

#

hum weird

#

since bp can make localplayer indirectly

thin stratus Sep 19, 2018, 11:10 AM

#

Yeah, I exposed it for another project a few weeks ago. Adds a lot of stuff to BPs

manic pine Sep 19, 2018, 11:13 AM

#

guess they just havent gotten around to it yet

obsidian birch Sep 19, 2018, 1:41 PM

#

Hi there, im struggeling a lot with getting the hang of blueprint replication and the whole server-client communication. Ive gone through a couple of different video series on the unreal youtube channel, but im still a bit lost. Does anyone have any good learning resources to help?

thin stratus Sep 19, 2018, 2:09 PM

#

@obsidian birch Pinned messages. Second from the top.

obsidian birch Sep 19, 2018, 2:13 PM

#

@thin stratus thank you!

torpid nymph Sep 19, 2018, 3:29 PM

#

is it possible to connect via IP using steam subsystem?

sharp pagoda Sep 19, 2018, 3:40 PM

#

@torpid nymph I don't think so, at least not properly. Use open steam.<gameid> to directly join a session.

torpid nymph Sep 19, 2018, 3:40 PM

#

@sharp pagoda how do I know a server id?

sharp pagoda Sep 19, 2018, 3:41 PM

#

Run the server with -log and it will tell you in there, the number is a 64 bit integer that starts with 9011... or open the steam client, click View and go to Servers. You'll see your server come up in the LAN section

#

The name of the server is the game ID, by default

torpid nymph Sep 19, 2018, 3:42 PM

#

oh, I changed that in the source files to name it something else

sharp pagoda Sep 19, 2018, 3:42 PM

#

Then you can get it from the log

#

It's also stored in the session ownerID

torpid nymph Sep 19, 2018, 3:44 PM

#

nothing in the logs

sharp pagoda Sep 19, 2018, 3:45 PM

#

Are you trying to join a listen server or a dedicated server

torpid nymph Sep 19, 2018, 3:45 PM

#

dedicated

sharp pagoda Sep 19, 2018, 3:45 PM

#

Then it prints it in the log

#

Maybe you're not creating the server properly? Can you show me your RegisterServer()?

torpid nymph Sep 19, 2018, 3:46 PM

#

I'm using advancecreatesession

#

in bp

sharp pagoda Sep 19, 2018, 3:46 PM

#

Mmm I'm not sure, I initialize my dedicated server through c++.

#

I don't see why it wouldn't print out the session ID though.

#

Trying packaging the server with full log verbosity in the config.

torpid nymph Sep 19, 2018, 3:48 PM

#

I have

#

it's full verbose already

sharp pagoda Sep 19, 2018, 3:48 PM

#

What are you getting in the log at the point of creating the server session?

torpid nymph Sep 19, 2018, 3:49 PM

#

nothing, I'm just printing a success string to know it succeeded

#

Session->OwningUserName = FString("TestDedicated"); //Session->OwningUserId->ToString()

#

this is what I changed so that it would give a name instead of the int

#

before it was naming the server with owninguserid, so that means I just need to store this of print it?

sharp pagoda Sep 19, 2018, 4:00 PM

#

Yea if you do that you'll see the session ID as the name of the server

#

And then you can open steam.x

torpid nymph Sep 19, 2018, 4:00 PM

#

going to try it out, thank you very much

#

oh I think I know why he's not printing

#

I had a bunch of verboses, but LogOnline was not one of them

#

derp

sharp pagoda Sep 19, 2018, 4:03 PM

#

Ah there you go

vale ermine Sep 19, 2018, 5:23 PM

#

Trying to figure out the best way to replicate flipbooks. My only guess would be to replicate the movement direction and current action to the client then have the client create an actor and use the replicated data to control the actor on the client. Would that be the best way to go about it. I need each client to display the correct flipbook based on the clients camera perspective.

twin juniper Sep 19, 2018, 5:44 PM

#

Hey, I've programmed everything, Host, Join, Search Games. For some reason, it doesn't work, can somebody DM me about this please?

twin vault Sep 19, 2018, 5:56 PM

#

no, its better to ask here whats wrong

sharp pagoda Sep 19, 2018, 6:17 PM

#

I'm using date times created with UtcNow and sending them across the network through RPCs in a lag compensation system I built, but have recently started having issues when having two computers on different networks use the system. Testing on my internal network on different machines has worked perfectly and the UTC measurements appear in sync, but playing against a coworker in a different network on a virtual machine dedicated server I've noticed a few seconds of desync in UTC time. I time synced the VM to the host machine which reduced it from about a 4 second desync to around 1.2-1.4 seconds, but this is still an issue since I need the time to be synchronized down to about a few milliseconds. Should I not be using UtcNow? If so, what should I be using instead?

heady epoch Sep 19, 2018, 6:33 PM

#

When testing multiplayer in editor with 2 players one is a server and the other is a client.

The preview window says Client 1

If you do 2 players with dedicated server the preview windows say Client -1 and Client -2

#

Why does it say minus? Is that normal?

#

I don't ever recall this before.

vale ermine Sep 19, 2018, 6:34 PM

#

Would it be the VM performance causing the issue? You said it works perfect on internal network. Going from 1.2 to a few milliseconds is huge. Do you use the VM when testing on internal network? I always thought VM ran like ... but I don't use them regularly so.

sharp pagoda Sep 19, 2018, 6:35 PM

#

The VM isn't on my network, it's on a coworkers. And performance isn't the problem, the machine is fairly decent.

bleak cloud Sep 19, 2018, 6:44 PM

#

My attack animations are playing on the server, but not on the clients. I feel like I'm missing something obvious.

#

Ah, I guess I just needed to throw a multicast on actually playing the animation

sharp pagoda Sep 19, 2018, 6:57 PM

#

I think I'll just end up using the player state's ExactPing instead of passing timestamps around.

gloomy mural Sep 19, 2018, 7:01 PM

#

@sharp pagoda UtcTime gets the time from the local system, so make sure your VM and test clients actually have correct time set and synchronized to a NTP server or something

#

That could be unreliable in production so I might use a different method to compare time

sharp pagoda Sep 19, 2018, 7:02 PM

#

Yea I was under the impression that UTC would be universal for all client machines, guess not :p. I'm just using the player state ping instead now.

bleak cloud Sep 19, 2018, 7:14 PM

#

So I'm using multicast to play an animation. What other options are there? I feel multicast is not the best choice for doing that.

subtle peak Sep 19, 2018, 8:19 PM

#

Hello everyone 😃 I'm wondering how I can get the 2nd player's "BP FriendInfo" using the advanced sessions plugin? I'm using "get player controller 0" to get my own, but how do I get the 2nd players info?

📎 get2ndPlayer.PNG

#

Because all online players are "player controller 0" right?

meager spade Sep 19, 2018, 8:36 PM

#

only on the client

#

on the server they will be 0, 1, 2 etc

subtle peak Sep 19, 2018, 8:38 PM

#

oh really? Thanks!

sharp pagoda Sep 19, 2018, 8:45 PM

#

@subtle peak As a client (without authority) only your own player controller exists, you have no knowledge of anyone else, so getting player controller 0 will always return your own controller. On the server, this is not the case as the server is aware of all the player controllers in the game. To get another person's info you can't use their player controllers, but you can use their player state, which is replicated and every client knows about every other client's player state.

subtle peak Sep 19, 2018, 9:18 PM

#

@sharp pagoda Thanks a lot! I'll look into player states 😄

thin stratus Sep 19, 2018, 11:06 PM

#

You sure the Index isn't also just limited to local PlayerController?

#

Even on the Server?

#

Otherwise working with the ControllerID etc. might be a bit annoying if it also takes other players controllers into account

versed rock Sep 20, 2018, 12:33 AM

#

Not too sure what im doing wrong, they dont land on same value

📎 unknown.png

#

This is whats doing the spining

📎 unknown.png

#

📎 unknown.png

meager spade Sep 20, 2018, 12:57 AM

#

why would they land the same?

#

each client is running try spin independantly

sharp pagoda Sep 20, 2018, 1:06 AM

#

@versed rock It's not replicating because of the multicast. When you run this, all the clients, including the server, run the random number function on their own, everyone getting their own result. A better way to handle this is to create a seed in the server function, then pass that seed to the multicast so that when the clients run the random, they all get the same values.

vale ermine Sep 20, 2018, 2:13 AM

#

If I can't replicate flipbooks in my game, it would be best to have the server replicate the actors data to the clients and each client spawn its own flipbooks that move/changed based off the servers replicated data?

sharp pagoda Sep 20, 2018, 3:16 AM

#

When using find sessions with a dedicated server query, the log shows that Steam receives my server response and doesn't immediately reject it for having a build ID mismatch, but then continues to not add it to the list of found sessions? It displays the session's owning ID, owning name, p2p address, etc in the log right after getting the response as well. The find sessions complete delegate is returning successful too.

worn oracle Sep 20, 2018, 5:47 AM

#

I have an actor in a level with an actor component, no replication, should be server only.
When I run this in the editor it works.
But when I use servertravel to the level, none of the components functions get called.
I have a print string right before the function call that prints and one inside that doesn't print.

Anything obvious I have done wrong?

deft ocean Sep 20, 2018, 6:16 AM

#

So i created a new playerstate and I am using Seamless Travel but my playerstate vars get reset once I do servertravel, i havent been able to figure out why that is. Unless I'm reading the documentation incorrectly, playerstate should persist with servertravel when seamless travel is enabled.

thin stratus Sep 20, 2018, 8:48 AM

#

Yeah but you have to put the variables over yourself

#

OnCopyProperties and OnOverrideWith are to be used for either direction

#

Think CopyProperties is for Seamless Travel

#

And OverrideWith is for reconnecting clients

#

@deft ocean

subtle peak Sep 20, 2018, 10:30 AM

#

Hey again folks. I want to invite somebody to a lobby and bring all the players in to lobby to a game together. How can I do this? Do I need to create a session when you enter the main menu? And how can I transfer players from the lobby to a new map?

bitter oriole Sep 20, 2018, 11:15 AM

#

Your best bet is to have the lobby be on the map you're going to play on

#

Like Overwatch does

thin stratus Sep 20, 2018, 11:59 AM

#

Or you use Beacons and Party Sessions

#

That's for inviting friends while still being in the main menu

#

C++ only of course

subtle peak Sep 20, 2018, 12:16 PM

#

Ok thanks guys

languid plume Sep 20, 2018, 12:51 PM

#

What got me started on how Multiplayer works in UE4 is this tutorial: https://www.youtube.com/watch?v=abmzWUWxy1U

YouTube

UnrealEngine

Blueprint Multiplayer: Project Overview | 01 | v4.11 Tutorial Seri...

In this video we take a look at the finished project and step through each of the features that will be covered in this series. We show our functional Main M...

▶ Play video

#

It might be a bit outdated but I think the main concepts still apply today.

rancid orchid Sep 20, 2018, 1:20 PM

#

Hi, quick one, if I have client - server game, would I store, say the player score in the APlayerState (which replicates to all clients and the server)? And would I only allow change to score for the player from the owning client only?

#

just thinking about all the framework hurts a bit since i havent done multiplayer much really 😅

winged badger Sep 20, 2018, 1:31 PM

#

score is usually supposed to be publicly visible

#

whatever you set on client only will not affect the server, or other clients at all

#

so you'd have to set the score on server, have it in a replicated variable

#

and then anyone has all the scores locally, all the time

rancid orchid Sep 20, 2018, 1:34 PM

#

awesome, thanks 😃

long hollow Sep 20, 2018, 4:26 PM

#

@languid plume im doing that tutorial for the past 2 days, got a bug that i cannot track down, driving me insane

#

also does anyone know if the dedicated server guide on the wiki is ok for 4.19?

languid plume Sep 20, 2018, 4:27 PM

#

Yes, just use target file instructions for 4.18

long hollow Sep 20, 2018, 4:28 PM

#

thought so, thanks 😃

languid plume Sep 20, 2018, 4:41 PM

#

And whats that nasty bug you're referring to? Maybe we can help

icy nacelle Sep 20, 2018, 5:30 PM

#

getting my head around SQL databases...
If I have a variable (lets say player score) that I want to save to a database, would I save it every time it changes or would it be on a timer?
This feels like a dumb question but I feel I need to double check.

#

I've only been doing local saves up until now for development

open cape Sep 20, 2018, 5:51 PM

#

if your game isnt dependent on it in real-time, i'd just write to it in another thread with every change

icy nacelle Sep 20, 2018, 5:58 PM

#

thanks

pallid stone Sep 20, 2018, 6:18 PM

#

Do components not replicate? I have a component, it has SetIsReplicated(true) and the parent also replicates. Yes variables are not replicating (I have getlifetimereplicationprops setup as well)

thin stratus Sep 20, 2018, 6:19 PM

#

Yes they replicate

#

The BP ones do and I'm pretty sure I have a full C++ Inventory system based on Components that also replicates

pallid stone Sep 20, 2018, 6:24 PM

#

Mine are not replicating, and I have no idea why

#

@thin stratus anychance of you lending a hand?

winged badger Sep 20, 2018, 6:30 PM

#

best guess, you add them on BeginPlay or some such, without checking for authority

#

and up with a pair of the components on the client

#

and you're accessing the local, non-replicated one

pallid stone Sep 20, 2018, 6:39 PM

#

Add what on beingplay?

thin stratus Sep 20, 2018, 6:56 PM

#

The Component he means

pallid stone Sep 20, 2018, 6:58 PM

#

@thin stratus This is what I put in the actor parent constructor

SetReplicates(true);
InventoryComponent = CreateDefaultSubobject<UInventoryComponent>(TEXT("InventoryComponent"));
InventoryComponent->SetNetAddressable();
InventoryComponent->SetIsReplicated(true);

thin stratus Sep 20, 2018, 6:59 PM

#

ActorComponent I assume?

#

Well

#

Can you call RPCs on it?

#

Right now not aware of anything else than setting it to replicate

#

And for C++ also do the lifetimerep stuff

#

Might want to put "bReplicates" into the constructor of the component

#

Yeah looking through my own

#

I don't do much else

#

void USGInventoryComponent_CraftFuel::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
{
    Super::GetLifetimeReplicatedProps(OutLifetimeProps);

    DOREPLIFETIME(USGInventoryComponent_CraftFuel, FuelTimeLeft);
    DOREPLIFETIME(USGInventoryComponent_CraftFuel, FuelTime);
    DOREPLIFETIME(USGInventoryComponent_CraftFuel, CraftingTimeLeft);
    DOREPLIFETIME(USGInventoryComponent_CraftFuel, bIsOnFuel);
}

#

And ```cpp
ASGFirePlace_Base::ASGFirePlace_Base()
{
PrimaryActorTick.bCanEverTick = true;

CraftingComponent = CreateDefaultSubobject<USGInventoryComponent_CraftFuel>(FName("Crafting Component"));
CraftingComponent->SetIsReplicated(true);

bReplicates = true;
bReplicateMovement = true;

}

pallid stone Sep 20, 2018, 7:29 PM

#

@thin stratus yeah the component as SetIsReplicated(true); in the constructor

#

Would I be able to give you a call at some point to get some feedback please?

thin stratus Sep 20, 2018, 7:41 PM

#

Nope, sorry :P

pallid stone Sep 20, 2018, 7:49 PM

#

My component and parent actor is setup like that, even has the tick box in the unreal editor saying it's replicated, and a ue log returns true for breplicates so I don't know what I am doing wrong

obsidian birch Sep 21, 2018, 12:05 AM

#

is it acceptable to run the same script on both client and server? I wouldnt think so but wanted to check

#

something tells me I should run the script once on the server and then replicate variables to clients for them to update

#

reason i ask is im working on aiming and doing that through the server first and then replicating causes laggy behaviour

#

📎 unknown.png

gleaming vector Sep 21, 2018, 12:09 AM

#

running code on both client and server is common

#

usually for prediction

#

the key is understanding when to communicate between the two (server telling the client of something that happened) and correcting the client when it gets the state wrong

#

for example, movement is something that should happen on both

#

and then when the server finishes updating movement, it tells the client where it actually is

#

if the difference between where the client thinks it is and where the server says it is is very small, then you can effectively ignore that update from the server

#

however if it's larger, correct it

obsidian birch Sep 21, 2018, 12:11 AM

#

that makes sense

gleaming vector Sep 21, 2018, 12:12 AM

#

so, yes, your code is mostly correct

obsidian birch Sep 21, 2018, 12:12 AM

#

okay cool

#

duplicating everything felt inefficient

gleaming vector Sep 21, 2018, 12:12 AM

#

the only thing you are missing is making that variable (TurretWorldRotation) replicated

obsidian birch Sep 21, 2018, 12:12 AM

#

but i gues thats what functions are for

gleaming vector Sep 21, 2018, 12:12 AM

#

i wouldn't duplicate everything

#

you can have one function, UpdateRotation

#

that does the setting and the math

#

then have a ServerUpdateRotation function that just calls UpdateRotation

#

So, on the client, you call UpdateRotation and ServerUpdateRotation

obsidian birch Sep 21, 2018, 12:14 AM

#

why does the variable need to be replicated if both client and server are doing the math anyway?

fossil spoke Sep 21, 2018, 12:15 AM

#

Because thats where the Server will send the corrected value to the Client (and everyone elses client). If for some reason the Client calculated a different value they could be wildly different.

obsidian birch Sep 21, 2018, 12:16 AM

#

aaah, makes sense ^^

#

and it gets replicated everytime it changes right?

fossil spoke Sep 21, 2018, 12:16 AM

#

Yes

obsidian birch Sep 21, 2018, 12:17 AM

#

finally getting my head around the basics of this stuff

fossil spoke Sep 21, 2018, 12:17 AM

#

Remember, replication is Server to Client, the Client cannot affect anything on the Server or other Clients through replication. The only way a Client talks to the Server is via an RPC.

obsidian birch Sep 21, 2018, 12:20 AM

#

yes

#

set everything with custom events on the server first

#

and then worry about getting them to work on clients

#

📎 unknown.png

#

with this as the function

#

📎 unknown.png

fossil spoke Sep 21, 2018, 12:29 AM

#

👍

graceful shard Sep 21, 2018, 12:45 AM

#

Posted in #blueprint but in retrospect seems more fitting here: Any ideas on how to make ProjectileMovement less choppy on a client? I'm using one to move the player pawn for an ability. Camera moves smoothly if the server does it, but is noticeably choppy if the client does it

fossil spoke Sep 21, 2018, 12:46 AM

#

@graceful shard Read the #old-rules mate. Dont post the same thing in multiple channels.

graceful shard Sep 21, 2018, 12:46 AM

#

👍 sorry

fossil spoke Sep 21, 2018, 12:46 AM

#

Delete whichever one is less relevant

#

Stick to one channel.

obsidian birch Sep 21, 2018, 12:50 AM

#

could be you were making the same mistake as me

#

running everything on the server

#

which would then only have it update on the client when server sends updates

#

or did you mean that the projectile is smooth on the client if fired by the server

graceful shard Sep 21, 2018, 12:52 AM

#

The ProjectileMovement is a component on the player pawn. It gets activated when the player triggers the ability. I'll check if I can see its running on the client

#

should be, hopefully

#

I tried to isolate it to only activate the ProjectileMovement on the server and it made the choppiness significantly worse, so I'm pretty sure I can conclude it's going on client too normally

#

Maybe, actually, I'm not 100% convinced either way. I'll keep looking

obsidian birch Sep 21, 2018, 1:06 AM

#

is "get world delta seconds" the same value for both client and server?

#

cus for some reason my server tank is moving and rotating twice as fast as my client

cloud ledge Sep 21, 2018, 1:10 AM

#

No @obsidian birch

#

All timing is independent on client and server

#

In fact, there is only one clock that is supposed to be synchronized, but it's synchronized very poorly and you need to patch the engine to make it actually useful

#

No, GetWorldTimeSeconds and any other time function return different values on server and client

#

Server may run at 60 fps tickrate, but client is bound by rendering and can have any other FPS

#

Check if you're using right delta time and applying it just once per frame?

deft ocean Sep 21, 2018, 1:14 AM

#

@thin stratus Got it! So I found Event CopyProperties to make this possible with BP and using that is working great. Thanks for your help!!! (And thanks for the network compendium 😃 )

obsidian birch Sep 21, 2018, 1:26 AM

#

ooooh i got it

#

📎 unknown.png

#

server is rotating at twice the rate

#

becasue its basicly repeating the function

#

once locally

#

and then again on the server

#

derp

cloud ledge Sep 21, 2018, 1:27 AM

#

Yeah

#

Sounds like the right cause for this 😄

obsidian birch Sep 21, 2018, 1:29 AM

#

📎 unknown.png

#

hacky or legit?

fossil spoke Sep 21, 2018, 1:30 AM

#

Input events will never be fired on the Server.

#

Clients only ever have Input

#

Unless its a Listen Server

obsidian birch Sep 21, 2018, 1:30 AM

#

ye it is

fossil spoke Sep 21, 2018, 1:30 AM

#

Ok

obsidian birch Sep 21, 2018, 1:31 AM

#

or should i do a has authotity check?

#

is that cleaner?

#

the branch fixed the issue

#

just feels a bit hacky

fossil spoke Sep 21, 2018, 1:32 AM

#

Why?

obsidian birch Sep 21, 2018, 1:33 AM

#

dunno xD

#

im not very aware of whats acceptible and whats not

cloud ledge Sep 21, 2018, 1:36 AM

#

No, it's a decent solution

#

Idk what that "is server" thing though is

obsidian birch Sep 21, 2018, 1:54 AM

#

just checks if your the server or not

cloud ledge Sep 21, 2018, 1:59 AM

#

But what does it mean

#

Does it check if you're dedicated server or does it check that you're authority?

#

Etc

#

I assume it checks if you're dedicated server or no, then checks if you're authority or no

obsidian birch Sep 21, 2018, 2:11 AM

#

checks if your dedicated or listen server?

fossil spoke Sep 21, 2018, 4:37 AM

#

@obsidian birch @cloud ledge return World ? (World->GetNetMode() != NM_Client) : false;

#

It checks the World Contexts NetMode

#

If the World is being run on a Client then its obviously not the Server

cloud ledge Sep 21, 2018, 4:38 AM

#

Yeah, I think that's what is in our code

thin stratus Sep 21, 2018, 7:50 AM

#

@deft ocean No biggie. (cough I was the one exposing the CopyProperties even cough kappa )

mighty rover Sep 21, 2018, 8:10 AM

#

Somewhere within my testing, my client stopped being able to connect to my listen server (phone). Again it was working but it's not anymore. I'm getting the actual ip vs expected ip mismatch on port. any ideas? Here's both console commands

#

📎 unknown.png

#

LogNet: Warning: Incoming ip address doesn't match expected server address: Actual: 24.221.55.23:37026 Expected: 24.221.55.23:7777

Even when I appended ?port=7777 on both, and on one and not on the other.

worthy wasp Sep 21, 2018, 8:39 AM

#

37026 looks to be the source/outgoing port for communicationz ill bet. ... where 7777 is the destination/incoming port

How are you seeing 37026 anywhere?

#

The only place you should see that is a netstat command in windows command prompt

mighty rover Sep 21, 2018, 8:52 AM

#

everytime I click JoinRunningDemoBtn in the output log it just returns that same line of expected vs actual but it randomizes that port

#

I'm curious as to why, even if I add ?port=7777 to the first console command node or if I add it to the second, why it doesn't force the port

thin stratus Sep 21, 2018, 8:58 AM

#

It shouldn't give you the other port in the first place

mighty rover Sep 21, 2018, 8:58 AM

#

Ok, so I'm testing again locally between phone and my PC and as long as I specify my local internal static IP of my PC, my phone can connect to it no problem. The same cannot be said when trying to connect to my phone (as the listen server) from my PC (client) over the Internet. It worked before though, unless it was just a coincidence

#

exactly, no clue why it's doing it

thin stratus Sep 21, 2018, 8:59 AM

#

Do you have the port open ?

mighty rover Sep 21, 2018, 8:59 AM

#

don't know for sure, it's over my cellular network

thin stratus Sep 21, 2018, 8:59 AM

#

Maybe the Router just returns some garbage stuff

#

Ah well

#

I would assume that won't work?

mighty rover Sep 21, 2018, 8:59 AM

#

Is there any good way to do NAT punchthrough?

#

it worked once

thin stratus Sep 21, 2018, 8:59 AM

#

I guess GooglePlay?

#

Idk

#

I also got a question: Anyone here did Splitscreen before and has some good solution to the screen scaling for 2 Player splitscreen?

#

We solved 3 Players by changing the top area to start at 0.25 and only be 0.5 big.
So it's now in the middle of the top area and the same size as the lower two players

covert garden Sep 21, 2018, 9:01 AM

#

blueprint can create server file with out c++?

thin stratus Sep 21, 2018, 9:01 AM

#

(Actually found out that Mario Kart doesn't do 3 Splitscreens. They just put a 4th screen at the bottom that spectates random players)

#

@covert garden If you tell us what "Server File" is, we can probably answer your question

covert garden Sep 21, 2018, 9:02 AM

#

for dedicate server

#

i found c++ only to create dedicate server file

pallid stone Sep 21, 2018, 9:04 AM

#

Would anyone be able to help me getting a c++ component to replicate, none of the variables are updating on the owning client

thin stratus Sep 21, 2018, 9:05 AM

#

@covert garden DedicatedServers require you to at least download the Source of the Engine.

#

The Launcher Build does not have the proper Target files etc.

#

Once you've downloaded the whole Source, you need to compile it.
Then swap the Engine of your Project out to use the new Source build.
Then you can build the DedicatedServer.

#

And you probably need C++ or something like the AdvancedSession Plugin if you want to use Sessions with DedicatedServers

covert garden Sep 21, 2018, 9:20 AM

#

@thin stratus it's can use to dedicate server's game create by blueprint?

thin stratus Sep 21, 2018, 9:21 AM

#

No, you need the source

covert garden Sep 21, 2018, 9:24 AM

#

https://wiki.unrealengine.com/Dedicated_Server_Guide_(Windows_%26_Linux)

Dedicated_Server_Guide_(Windows_%26_Linux)

pallid stone Sep 21, 2018, 9:24 AM

#

Can you not replicate components in 4.18.3?

thin stratus Sep 21, 2018, 9:24 AM

#

Yes you can :D

pallid stone Sep 21, 2018, 9:24 AM

#

Lol hi again

thin stratus Sep 21, 2018, 9:24 AM

#

My BP crafting system uses them

#

Something in your C++ setup is screwed

pallid stone Sep 21, 2018, 9:25 AM

#

Ah, I'm doing mine in c++

thin stratus Sep 21, 2018, 9:25 AM

#

Mine was c++ before

#

which worked too

pallid stone Sep 21, 2018, 9:25 AM

#

How can I find out what I am doing wrong?

#

I tried setting the component to be replicated, which didn't work

thin stratus Sep 21, 2018, 9:26 AM

#

I really don't know at this point

#

Actor and Component need to replicate.

pallid stone Sep 21, 2018, 9:26 AM

#

They are both set to replicate

#

📎 unknown.png

#

📎 unknown.png

thin stratus Sep 21, 2018, 9:27 AM

#

How did you define the Variable in the actor

pallid stone Sep 21, 2018, 9:27 AM

#

UPROPERTY(Replicated)
int32 repint;

UPROPERTY(EditAnywhere, Replicated, Category = "Inventory")
    TArray<FStInventoryItem> St_Inventory;

#

THe top one is a test variable to try get it to replicate

thin stratus Sep 21, 2018, 9:28 AM

#

No, I mean the Component variable

pallid stone Sep 21, 2018, 9:28 AM

#

Oh, in the constructor, I have SetIsReplicate(true);

#

And in the actor constructor, I do the same

#

InventoryComponent = CreateDefaultSubobject<UInventoryComponent>(TEXT("InventoryComponent"));
InventoryComponent->SetNetAddressable();
InventoryComponent->SetIsReplicated(true);

thin stratus Sep 21, 2018, 9:28 AM

#

And how did you declare it

pallid stone Sep 21, 2018, 9:29 AM

#

Declare the constructor?

thin stratus Sep 21, 2018, 9:29 AM

#

The component pointer

#

The declaration

#

In the Header file

pallid stone Sep 21, 2018, 9:29 AM

#

UPROPERTY(VisibleAnywhere, BlueprintReadOnly, meta = (AllowPrivateAccess = "true"))
UInventoryComponent* InventoryComponent;

manic pine Sep 21, 2018, 9:29 AM

#

did you by chance forget declaring the var in getlifetimereplicatedprops?

pallid stone Sep 21, 2018, 9:30 AM

#

Nope, got that

#

void UInventoryComponent::GetLifetimeReplicatedProps(TArray< FLifetimeProperty > & OutLifetimeProps) const
{
Super::GetLifetimeReplicatedProps(OutLifetimeProps);
//DOREPLIFETIME(UInventoryComponent, St_Inventory);
DOREPLIFETIME_CONDITION(UInventoryComponent, St_Inventory, COND_OwnerOnly);
DOREPLIFETIME(UInventoryComponent, repint);

covert garden Sep 21, 2018, 9:35 AM

#

@thin stratus source file can use for dedicate server's game create blueprint?

thin stratus Sep 21, 2018, 9:36 AM

#

Buddy, your question barely makes sense

#

You need the Source Version of the Engine to build a DedicatedServer.

#

And if you use Sessions ,like Steam stuff, you probably need IN ADDITION, C++ or the AdvancedSession Plugin

#

That's all I can tell you

#

@pallid stone Mark the variable replicated

#

The component it is

pallid stone Sep 21, 2018, 9:44 AM

#

Mark the component variable as replicated?

#

Set inventoryCOmponent to replicate, still not replicating variables from client to server

covert garden Sep 21, 2018, 9:46 AM

#

@thin stratus I already have a prototype game that created by blueprint and what do I have to do with source to make it become dedicated server?

thin stratus Sep 21, 2018, 9:47 AM

#

Follow the tutorial you posted

#

@pallid stone That's the only additional change I have on my end

#

The Inventory variable is marked as replicated too

pallid stone Sep 21, 2018, 9:47 AM

#

I also created an integer for replication on the actor, set it to 5 on the server, but it's still 0 on the client, yet is replicated

manic pine Sep 21, 2018, 9:48 AM

#

the actual comp reference shouldnt technically need to be replicated

pallid stone Sep 21, 2018, 9:48 AM

#

void AOvCharacter::GetLifetimeReplicatedProps(TArray< FLifetimeProperty > & OutLifetimeProps) const
{
DOREPLIFETIME(AOvCharacter, repintchar);
DOREPLIFETIME(AOvCharacter, InventoryComponent);
} Super::GetLifetimeReplicatedProps(OutLifetimeProps);

So I have no idea what I am doing wrong here

manic pine Sep 21, 2018, 9:48 AM

#

i think its more likely youre doing some other mistake

#

maybe you are setting/checking the var on the wrong actor

pallid stone Sep 21, 2018, 9:49 AM

#

Theres only one version of the actor in the level for my testing currently

manic pine Sep 21, 2018, 9:50 AM

#

its a placed actor?

#

not spawned?

#

when are you checking the var

pallid stone Sep 21, 2018, 9:52 AM

#

spawned at game start

covert garden Sep 21, 2018, 9:53 AM

#

@thin stratus i will try it,thank you.

manic pine Sep 21, 2018, 9:54 AM

#

how are you spawning it

thin stratus Sep 21, 2018, 9:55 AM

#

@pallid stone Is that really how your GetLifetime function looks like?

manic pine Sep 21, 2018, 9:55 AM

#

hah ye i was wondering about that too, but i figured it wouldnt compile

pallid stone Sep 21, 2018, 9:56 AM

#

In the character, yes (it inherits from the template character)

#

The inventory component is different. Have I been using the wrong function?

thin stratus Sep 21, 2018, 9:56 AM

#

Well Idk, I looked through my components and they are:

Marked to Replicated in their Constructor
Marked to Replicated when being Created
Their Variable is Marked as Replicated
The Variable in the Comp is marked as Replicated
The Variable in the Comp is listed in LifeTimeprops of the Comp

pallid stone Sep 21, 2018, 9:57 AM

#

The component is this void UInventoryComponent::GetLifetimeReplicatedProps(TArray< FLifetimeProperty > & OutLifetimeProps) const
{
Super::GetLifetimeReplicatedProps(OutLifetimeProps);
//DOREPLIFETIME(UInventoryComponent, St_Inventory);
DOREPLIFETIME_CONDITION(UInventoryComponent, St_Inventory, COND_OwnerOnly);
DOREPLIFETIME(UInventoryComponent, St_testInventory);
DOREPLIFETIME(UInventoryComponent, St_BPTestSt);
DOREPLIFETIME(UInventoryComponent, St_TestSt);
DOREPLIFETIME(UInventoryComponent, repint);
}

some of them are my tests to try find out what I am doing wrong

#

Do I need to call replicatesubobjects in the character constructor?

manic pine Sep 21, 2018, 9:58 AM

#

the fact that you cant even get your character int to replicate indicates youre doing something else wrong imo

#

probably related to timing or some such

pallid stone Sep 21, 2018, 9:59 AM

#

I know, but I don't know what, since when testing with two, movement is rpelicating find

#

replicating fine*

manic pine Sep 21, 2018, 9:59 AM

#

movement replication is very different

#

it uses RPCs

#

when are you setting the var on the server, when are you checking it on the client

pallid stone Sep 21, 2018, 10:01 AM

#

Client presses e, which calls a function to replicate on server, server does changes to variables on it's end and logs them, then calls function on client which logs what the client things it's version of the variables are.

#

📎 unknown.png

manic pine Sep 21, 2018, 10:02 AM

#

how do you ensure the variables receive replication before the RPC which prints them?

#

what happens if you just press your button twice

#

does the second log entries show correct values?

pallid stone Sep 21, 2018, 10:05 AM

#

One mo

#

Ahhhh. So, if I'm reading this right. It is replicating. But, the function was called before the data had been sent from the server to the client and the client had updated itself, is that right?

📎 unknown.png

manic pine Sep 21, 2018, 10:19 AM

#

most likely the function and the data was sent in the same network packet, but the client ran the function before updating the data

pallid stone Sep 21, 2018, 10:31 AM

#

Right, ok, thats good to know. So how do I make sure the client updates after recieving the packet updated data?

#

After re-reading that sentence, I realise how horrible it was

manic pine Sep 21, 2018, 10:47 AM

#

you dont. you cant count on the order in which stuff is done

#

exception being reliable RPCs, which are(or should be) guaranteed to run in the order they were called

pallid stone Sep 21, 2018, 10:48 AM

#

Can I do a rep_using where it's owner only?

manic pine Sep 21, 2018, 10:48 AM

#

yes

pallid stone Sep 21, 2018, 11:05 AM

#

So that would look like UPROPERTY(ReplicatedUsing=FunctionName);

Then in my lifetimereplicatedprops I would do
DOREPLIFETIMECONDITION(aovactor, st_inventory, owneronly)?

manic pine Sep 21, 2018, 11:06 AM

#

ye, only thign that changes is replicated->replicatedusing

#

its the same mechanic, the replication system just calls a function after its received an update on that var

pallid stone Sep 21, 2018, 11:12 AM

#

Since this is for an inventory system, I just want to know what has changed, and do an update (make a new inventory icon, remove an icon, or update an icon). How would I find out what I want to do in that situation?

thin stratus Sep 21, 2018, 11:12 AM

#

Make sure to mark the function as UFUNCTION()

#

What I did is having a second Struct

#

With only the information that is really needed for the update

pallid stone Sep 21, 2018, 11:13 AM

#

Is there a compare structs function?

thin stratus Sep 21, 2018, 11:13 AM

#

You can compare two structs of the same class

#

They are classes, you so can override the == operator

manic pine Sep 21, 2018, 11:14 AM

#

when you declare your repnotify function, you can do so using

UFUNCTION()
void OnRep_MyVar(vartype OldVar)

#

ive had some problems using it with structs though...not sure it always returns the proper old var... or maybe i messed up the various constructors/operators

pallid stone Sep 21, 2018, 11:46 AM

#

How do I pass in the oldvar on a onrep?

manic pine Sep 21, 2018, 11:57 AM

#

you dont, the replication system does when it calls the function

pallid stone Sep 21, 2018, 11:57 AM

#

So how does it know what variable to put in? Or does it just automatically put in the old variable of it's type?

manic pine Sep 21, 2018, 12:00 PM

#

that function is only ever being called for that specific var

#

i expect youd get an error if you tried to use the same function for multiple vars if your function had an oldvar parameter

#

though i havent tried it myself

pallid stone Sep 21, 2018, 1:33 PM

#

@manic pine Hey, so I have my onrep var setup like this

#

void UInventoryComponent::OnRep_InventoryChange(TArray<FStInventoryItem> OldVar)
{
if(GetOwnerRole() == ROLE_Authority) UE_LOG(LogTemp, Warning, TEXT("------------On Rep Authority ------------"));
if (GetOwnerRole() == ROLE_AutonomousProxy) UE_LOG(LogTemp, Warning, TEXT("------------On Rep AutonomousProxy ------------"));

UE_LOG(LogTemp, Warning, TEXT("Old inv size is %d"), OldVar.Num());
UE_LOG(LogTemp, Warning, TEXT("New Inv size is %d"), St_Inventory.Num());

}

#

However, oldvar.num() and St_Inventory.num are the same

#

What am I doing wrong?

cursive yew Sep 21, 2018, 1:34 PM

#

Hey anyone that know how to make a party system so friends can join your lobby and then start a game, or if there are any vids on it?

chrome bay Sep 21, 2018, 1:36 PM

#

@pallid stone Arrays will often trigger the OnRep multiple times - once when the array size changes, and again as it's contents are replicated down too. Particularly the case with any object properties as objects are replicated separately.

#

Also - pass the array by const reference, otherwise you're copying it everytime that function is called

#

UInventoryComponent::OnRep_InventoryChange(const TArray<FStInventoryItem>& OldVar)

pallid stone Sep 21, 2018, 1:37 PM

#

Thanks jamsh

#

it doesn't like TArray<FStInventoryItem>&

chrome bay Sep 21, 2018, 1:40 PM

#

use const

slate veldt Sep 21, 2018, 1:48 PM

#

If I wanted to change the RenderCustomDepthPass bool on every static mesh actor in the level in a networked game, I noticed that the value isn't replicated (understandably) so does this mean that our client is able to change this upon loading the level? If so, where can I run my function when the player joins?

Basically, our level currently doesn't have any custom depth settings setup, and we've introduced an outline for team mates and enemies. We only want the render this when they are within view, hence turning on the custom depth render pass for each static mesh actor in the level.

Upon testing this locally (essentially single player) this works perfectly, it's very quick and doesn't add any performance lag doing it on the players begin play. From experience, I don't think begin play runs on an actor on the client? Is that right?

#

Don't want to do it on Character anyways, because they would respawn and call it everytime, I'm ideally looking to put it in a level begin play event, but I'm not sure whether that would run on the client when they join?

Failing that (and this might be another question for another channel) is there a way to set the custom depth render variable for all actors in the level and then save it?

pallid stone Sep 21, 2018, 2:23 PM

#

TheJamsh#2257 doesn't like (TArray<FStInventoryItem&> OldVar) either

#

nvm

#

Still thinks it's got new value

slate veldt Sep 21, 2018, 2:31 PM

#

@pallid stone Did you use const? You don't want the & inside the braces, you want it where Jamsh said

pallid stone Sep 21, 2018, 2:36 PM

#

yeah like this void UInventoryComponent::OnRep_InventoryChange(const TArray<FStInventoryItem>& OldVar)

hasty adder Sep 21, 2018, 4:31 PM

#

Seem still a prob with unlocked frames and ded server? I get more then 130 and it's warp city 🤣

tiny helm Sep 21, 2018, 5:34 PM

#

Not sure if this is the best place to ask this, but a friend was telling me something about setting up your project with the -mmo flag to make sure multiplayer was enabled? I can't seem to find any documentation on this. Anyone know what he is referring to? If there is a better channel to ask in please let me know. 😃

sharp pagoda Sep 21, 2018, 5:36 PM

#

@tiny helm No such thing, multiplayer is built into the engine.

tiny helm Sep 21, 2018, 5:37 PM

#

See, and that's what I thought. I've been over all of the dedicated server documentation as well and I didn't see anything about creating a project with the -mmo flag. I didn't even think creating projects with flags would work necessarily at all. lol

#

Or, I have never heard of using flags when creating a project in any case.

hasty adder Sep 21, 2018, 5:41 PM

#

Trolled

thorn mauve Sep 21, 2018, 5:49 PM

#

Any recent good tutorial for do a typical multiplayer is for a sandbox game

knotty ore Sep 21, 2018, 5:49 PM

#

wait a minute. weeks ago someone told me something about using -mmo to set the engine up for multiplayer

#

so i assumed i was being trolled which rolled over into maggot? lol

sharp pagoda Sep 21, 2018, 5:50 PM

#

Yea

#

"set the engine up for multiplayer" 😂

knotty ore Sep 21, 2018, 5:51 PM

#

as in it setup some base BP's and things like that.

#

HEY! idk. lol

tiny helm Sep 21, 2018, 5:51 PM

#

I'm trying to search for the post where whoever told you that @knotty ore and I can't find it... to much chatter on this Discord. XD

knotty ore Sep 21, 2018, 5:52 PM

#

I am building a SP game. That was a good month ago, you will never find it

#

but as Xenonic said i guess its just a thing already there

#

sorry about that

tiny helm Sep 21, 2018, 5:53 PM

#

The question is, how would one even pass a flag to project creation? I've never heard of such a thing, but hey, I learn new stuff all the time so I had to make sure. lol
Edit: I can't English today... 😦

sharp pagoda Sep 21, 2018, 5:54 PM

#

Not that I'm aware of, I'm sure the project building tool has some command line args you can pass into it, but nothing that changes how the engine behaves.

tiny helm Sep 21, 2018, 5:57 PM

#

Yeah, from everything I've read about dedicated servers, you simply have your stuff set up properly for replication, have your transition level target the host with Open Level, open the project solution, target dedicated server and then compile. ¯_(ツ)_/¯

#

That's obviously a simplified version of the instructions I've read, but I'm sure everyone here is far more familiar with it than I am. lol

thin stratus Sep 21, 2018, 6:10 PM

#

You mean when actually creating a new project?

#

Or what do you mean with "project Creation"

stray citrus Sep 21, 2018, 6:16 PM

#

hi, in my lobby i want my players that they can switch team,but how to update on all screen's player the team?

thin stratus Sep 21, 2018, 6:46 PM

#

The easiest way is really just letting your widget check on tick

#

I update my PlayerLists by doing two tests. First I check if the Length of the PlayeraArray changed since last time it updated (so you save that in the array if you update the list).

#

And second is I check if an Entry that is already created has a different team than before

#

So when creating an entry, I save the team into it too

#

And put the entry into a TMAP with the PlayerState as key

#

So i can find it again with a simple hash

stray citrus Sep 21, 2018, 6:55 PM

#

okay thx dude

tiny helm Sep 21, 2018, 7:06 PM

#

@thin stratus Someone told Darinius to make sure that he created new projects with the -mmo flag to make sure that multiplayer got set up correctly. He passed this info onto me, and I had never heard about passing flags during project creation. So I asked about it in here. Turns out we were being trolled apparently. 😃

thin stratus Sep 21, 2018, 7:07 PM

#

Yus, never beleive the MMO things

#

Despite the MMO button I coded

bitter oriole Sep 21, 2018, 8:01 PM

#

Yeah that was def trolling

#

People tend to want to build MMOs by themselves, it's quite the recurring joke

gusty spire Sep 21, 2018, 9:32 PM

#

Hello guys I have a problem with replicating an arrow that is shot by a player. I decided to post the question here since it is mostly related to multiplayer. So I have a situation where a player uses a bow to shoot arrows. The arrow is a CPP actor that is spawned by the server , so the functionality inside the arrow is executed on the server. The problem is that the movement and rotation of the arrow is laggy to the clients. I use bReplicate and bReplicateMovement set to true and I also have the arrow angle set every tick based on the velocity's x pitch. What should I do to remove the lag?

sharp pagoda Sep 21, 2018, 9:44 PM

#

@gusty spire A typical approach to replicating projectiles is to spawn a client sided copy alongside the server. This client side version is just a prediction of what the actual authoritative projectile does. Since the client projectile isn't replicated, it won't have any jitter artifacts that come from simulation updates from the server projectile, but at the cost of not being a perfectly accurate representation of the actual projectile.

gusty spire Sep 21, 2018, 9:47 PM

#

so I should spawn it in a multicast function instead of a server side function?

#

@sharp pagoda

sharp pagoda Sep 21, 2018, 9:50 PM

#

No, spawn the client projectile where the client is firing the projectile (for example, on mouse click), the run a server RPC to spawn the actual projectile.

#

Another technique that might be useful to you is to override OnPostNetUpdate() and add custom interpolation code there to make the projectile smoother for clients. This technique is good for games that need accurate projectile representation

gusty spire Sep 21, 2018, 9:55 PM

#

Sorry but I can't really understand why do you mean by the first sentence. Right now on a click event, the event that spawns the arrow is called and it is executed on server. What is your idea behind making a copy for the clients if not by replacing the server event that creates the arrow with a multicast one?

sharp pagoda Sep 21, 2018, 9:57 PM

#

Making a copy means spawning an actor of your arrow class, but only when if we're not the authority. Do this before you run the rpc on the server.

#

Since you're spawning it on the client, it's not replicated and therefore only visible to you

fossil spoke Sep 21, 2018, 10:00 PM

#

This may help you understand

📎 Capture.JPG

#

If you use a multicast

#

The Client will have lag when firing

gusty spire Sep 21, 2018, 10:01 PM

#

it seems to my luck that it worked by making it multicast and removing the replcates of the arrow. it runs smooth and all the clients can see it. But I will look up for overriding OnPostNetUpdate() technique . Thanks

#

ah

fossil spoke Sep 21, 2018, 10:01 PM

#

Since the projectile will need to come down from the Server back to the Client in order to know its been fired.

gusty spire Sep 21, 2018, 10:01 PM

#

i see

fossil spoke Sep 21, 2018, 10:01 PM

#

If you spawn the projectile on the Client as well

#

The Client will have instant response for the Projectile

#

And appear to have no lag

#

The Clients version of the Projectile is purely cosmetic.

#

The Server should still notify the Client when the final hit occurs so that if there is any discrepancy with the simulation it can be corrected for the Client.

#

Hopefully that helps you clear up your confusion with what @sharp pagoda is trying to suggest.

gusty spire Sep 21, 2018, 10:08 PM

#

Thanks to both of you. It's still kind of confusing how am I supposed to do that in the context I'm firing the projectile but I will see it for tomorrow since now I have to leave.

fossil spoke Sep 21, 2018, 10:11 PM

#

Good luck!

thin stratus Sep 21, 2018, 10:29 PM

#

It's also interesting how fast the arrow moves though

#

Slow moving projectiles seem to be good to replicated AND simulate and then sync up

#

At least that's what UT did

#

And I still think that Epic hopefully knows what they are doing

trim dirge Sep 21, 2018, 11:41 PM

#

any good tutorials about vehicle in multiplayer?

gusty spire Sep 22, 2018, 10:36 AM

#

Does anybody know what to override the OnPostNetUpdate() function with to make projectiles (spawned on server and replciated to clients) look smooth for clients?

chrome bay Sep 22, 2018, 11:06 AM

#

Movement code should run both server and client side, which should make them relatively smooth.

#

Override OnRep_ReplicatedMovement() if you want to add some kind of interpolation. Obviously, you shouldn't smooth the root component - only the visual elements.

#

Also, Reliable RPC's result in higher latency than Unreliable. Seems counter intuitive, but UT actually stacks up a bunch of unreliable RPC's for projectile firing and sends a unique ID with each one to see if it's already been received server-side.

#

If the game is a twitchy shooter, you'll have to get pretty inventive with some solutions.

slim holly Sep 22, 2018, 11:22 AM

#

then there's the pre-calculated approach

#

especially with projectiles, since you will know for sure where it will land

chrome bay Sep 22, 2018, 11:25 AM

#

Sometimes, might collide before it gets there etc.

slim holly Sep 22, 2018, 11:58 AM

#

yes, you still need to do the patch check, but since it's calculated there won't be deviation between client and server

subtle peak Sep 22, 2018, 1:37 PM

#

Hey if I want to spawn an actor in MP, can that be done through the player pawn, or does it need to be done through the gamemode or something similar?

thin stratus Sep 22, 2018, 2:40 PM

#

If it's a replicated class that you want to spawn so everyone sees it, then you simply need to spawn it from the Server Side.

#

So basically every class that exists on the Server could do that

#

It more or less depends on your class

#

A Weapon for your Character can be spawned on the Char and also deleted again, as the Char probably manages the lifetime of the weapon. @subtle peak

thin stratus Sep 22, 2018, 3:12 PM

#

Setting the Net PktLag to 200 shouldn't that show my ping being quite high in editor?

#

LevelBlueprint of a DedicatedServer with 2 Players

#

Pings are around 12 after that

#

Weird, now it works

unique thunder Sep 22, 2018, 3:30 PM

#

Is enabling an actor's tick via local RPC (if the actor is owned by a player) enough to avoid having the actor tick on other clients?

#

It starts with tick disabled.

low obsidian Sep 22, 2018, 4:58 PM

#

Hi Guys, if I have 2 meshes (one for first person and one for third person) and 2 weapon meshes, which mesh should I take the end of barrel position from? or should I reposition the hands to line up with the third person mesh?

copper portal Sep 22, 2018, 5:52 PM

#

hi I have some problems with my respawn system. Basically what it does is that it selects a spawn point which is an actor that is placed around the level. It contains a isTaken boolean which doesnt work somehow. And once it selects a random spawnpoint, the character gets spawned there. But if I have 2 or 3 instances of my game, sometimes the players will spawn on top or next to each other (the game attempted to spawn the players in the same spot). If anyone knows what I can do, please help me.

thin stratus Sep 22, 2018, 5:56 PM

#

Without seeing your code, we can't do anything

trim dirge Sep 22, 2018, 5:57 PM

#

Car movement isn't shown to other clients, everything is replicated, i mean it shows it for the first 3 second, then when i go away from other players, the location go bananas

#

i am using the seden care, shouldn't it be already replicated for movement and location

copper portal Sep 22, 2018, 6:00 PM

#

@thin stratus The code that selects a spawn point: https://gyazo.com/00b02738e238a1a1461677d6ab477ef3
The code for the respawn: https://gyazo.com/0e2b77bd0a84d1fdd1f5631d5d884fbb https://gyazo.com/573447c0a79fcc8bce580f3959813d1e

Gyazo

thin stratus Sep 22, 2018, 6:00 PM

#

You aren't setting taken to true

copper portal Sep 22, 2018, 6:01 PM

#

oh yeah oof

#

u see, I forgot to tick it

thin stratus Sep 22, 2018, 6:01 PM

#

Also, you are never breaking the loop

copper portal Sep 22, 2018, 6:01 PM

#

lol

thin stratus Sep 22, 2018, 6:01 PM

#

It loops over the spawnpoints, even if you found a spawn

#

You need to break the loop if you found one

copper portal Sep 22, 2018, 6:02 PM

#

so when i set is taken to true, I break the loop

#

?

thin stratus Sep 22, 2018, 6:02 PM

#

When you spawn

#

And possess

#

you break it

#

This code is supposed to search one spawn for one player right?

#

So it executes once per player, or?

copper portal Sep 22, 2018, 6:02 PM

#

ye

thin stratus Sep 22, 2018, 6:02 PM

#

Yeah then break the loop if you found a spawn