multiplayer

[grand kestrel]

This is the third person template with this

void UMyCharacterMovementComponent::CalcVelocity(float DeltaTime, float Friction, bool bFluid,
    float BrakingDeceleration)
{
    Super::CalcVelocity(DeltaTime, Friction, bFluid, BrakingDeceleration);

    if (IsMovingOnGround()) { DebugFloat += 0.2f * DeltaTime; }
    else { DebugFloat = 0.f; }
    
    if (CharacterOwner->HasAuthority())    { GEngine->AddOnScreenDebugMessage(38265, 1.f, FColor::Orange, FString::Printf(TEXT("[Server] %f"), DebugFloat)); }
    else { GEngine->AddOnScreenDebugMessage(38266, 1.f, FColor::Orange, FString::Printf(TEXT("[Local] %f"), DebugFloat)); }
}

( CalcVelocity() is a common method called from the physics loops, same result with PerformMovement() )

@gleaming vector ^

It was breaking my stamina code and I couldn't figure out why until I tested that

Probably fine to just do that in regular tick tho, just not entirely ideal and may get a desync from time to time

[wheat niche]

Hey, i have a problem im trying to run a custom event from a client it tries to call SetMaterialServer it replicated (run server only) und and multicast if i press k on the server it works but for the client it wont do anythink can someone help me

[grand kestrel]

Where are you calling these from?

[wheat niche]

i created an actor class its a cube and inside it if the x button is pressed it will run

is it correct?

[grand kestrel]

Is your cube set to replicate?

[wheat niche]

yes

[grand kestrel]

If so, show your bp graph

[wheat niche]

okay give me a momemnt

Replicates:

[wheat niche]

ill show me the complete in a sec

first character second cube @grand kestrel

[grand kestrel]

1. After X input it can never be authority, because input is local client only, so only the "Remote" condition will ever fire
2. ChangeColorClient is just calling itself, I think you intended to put ChangeColorServer there

[wheat niche]

i changed it my bad xD

@grand kestrel i have another question

@grand kestrel
i have a question. I implemented a interaction system the problem is that the actor cannot send something to the server after interact it needs authority. im wondering how i can fix it so that the client can send a event too

[grand kestrel]

Only an actor ultimately owned by a playercontroller - anywhere up the owner chain - can call RPC

[wooden abyss]

Hello, I have a problem creating a Widget on clients. In my PlayerController I have a replicated Event that is set to run on owning clients which creates the basic HUD Widget and sets a Ref to the Widget in the Controller

My Gamemode calls an Event in the Controller to update the PlayerScoreList in the HUD. The Update Event in my Controller is replicated to run on owning clients as well and reliable.

The UpdatePlayerList Event gets called from my Gamemode in the Even OnPostLogin. This works fine for the server but i get a null pointer on the OverlayRef when UpdatePlayerList is called on the client

I did the same thing to add "PlayerCards" in my Lobby Gamemode/Level

Exact same setup

But I have no idea why the OverlayRef cant seem to be set for the client in the CreateOverlay Event

Anyone has an idea why this could happen?

[grand kestrel]

There is no guarantee that those clients even have a valid playercontroller replicated to them at that point in time, in fact, its unlikely because the playercontroller has only just begun play

Your game mode can't possibly have a reference to a widget either because gamemode only exists on server

It also wouldn't be appropriate to pass widgets around if you even can, they are client only and a visualization of what is happening

[wooden abyss]

My gamemode doesnt have a reference to a widget

[grand kestrel]

What's this then

Is that the controller?

[wooden abyss]

This is in my Gamemode. The UpdatePlayerList Event exists in the controller

[grand kestrel]

I might have misread that part

[wooden abyss]

And I loop over all the controllers to call that function

The ref is saved in the controller

[grand kestrel]

For this part just do beginplay -> is local controller -> true -> create widget

[wooden abyss]

I might have just found the culprit

Like I said I have the exact same setup for my Lobby. There it works fine. The difference is that my clients connect directly by using the Join Session blueprint. When the host starts the game inside the lobby I call this to load the new level

In that case the UpdatePlayerList gets called before the Event BeginPlay

But only for the clients

The Clients cant have a ref to their widget at that point cause its created in the Event BeginPlay

The servertravel also takes like 3-5 seconds

I had added a delay in my Gamemode so that the Controllers have enough time to run the BeginPlay Event

[grand kestrel]

Is there a reason to store this on gamemode instead of gamestate with a repnotify (and therefore no need for pricier netmulticast)

netmulticast is generally for time sensitive stuff you need right away

Replication is comparatively cheap

[wooden abyss]

Its a PlayerList with scores that is always visible so I wanted to have it updated as soon as a player joins. Thats why I called it in event OnPostLogin

Each player entry in the list is a seperated "PlayerCard" Widget that then update the score on their own

But in case someone connects or disconnects I want to have the correct "amount" of player cards shown

[buoyant kelp]

Why did I click the mouseleftbutton once while 2 bullets were created?

[wooden abyss]

Well it does work with a delay of 3 seconds but it just seems that the servertravel is rather slow. Is there another method to move all the clients to a new level that doesnt take that long?

Do you spawn the bullets on the server? Might be a replication problem that the client also spawns a bullet?

[grand kestrel]

If they don't finish connecting and have their playercontroller replicated within 3 seconds it will still fail

[gleaming vector]

This is because movement resimulates iirc

You can like, combine moves too

To get different dt values

[wooden abyss]

Yeah I know. I was mostly just testing if it's actually because the servertravel just takes longer

[grand kestrel]

Oh makes sense. Guess I have to handle stamina in tick then

Not sure how accurate that will be though

[gleaming vector]

There is a thing you can inherit override, but i forget it's name

But, did you try scaling by deltatime?

[grand kestrel]

That's what this is doing isn't it?

[gleaming vector]

Ag, yeah

Sorry on my phone about to go to bed

[grand kestrel]

Any idea where I can look?

[wooden abyss]

But I dont really understand why there is such a huge delay between the Event OnPostLogin and the Event BeginPlay for my client player controllers

[gleaming vector]

Not without looking myself and my cat has already claimed my legs so no going to my pc tonight lol

[grand kestrel]

Fair enough 😄

[grand kestrel]

You know, it occurs to me, I probably don't need to add stamina to net prediction at all - only when we're in a drain state, because I'll let the player do something that costs 50 stamina even if they only have 1 left, it just penalizes them for running out fully

[wooden abyss]

Is it feasible to add a dispatcher to my Player Controller that fires whenever the BeginPlay has run successfully and have my Gamemode bind to that dispatcher so it knows when that controller was setup correctly?

[grand kestrel]

No, you'd just send a server RPC on the player controller's beginplay that tells it to send whatever information it has back

[magic furnace]

On Server when a new instance of a pawn is made my BeginPlay does not fire. My gamemode upon restart destroys all pawns and for each controller spawns a new one. This works but for the host BeginPlay does not fire after the first time, any ideas?

[thin stratus]

The PredictionData of the CMC, ServerSide, is that reset somewhere when unpossessing or so?

    if (CharacterMovement)
    {
        CharacterMovement->ResetPredictionData_Client();
        CharacterMovement->ResetPredictionData_Server();
    }

Okay they do

But why is that not happening if I manually set the Controller to a valid one after Unpossessing hmmmm

[latent heart]

You're trying to use a valid player controller without possessing?

[thin stratus]

Yop

[latent heart]

That seems like folly! 🙂

[thin stratus]

Reason is: The Character is currently controlling another Pawn during an Ability.

And the original one still needs a valid pointer to Controller and PlayerState for scoring etc.

And all of that works fine, just the RootMotionSource is not playing

[verbal tendon]

Seems like a dependency on the character issue

[latent heart]

Why does your character need a controller and player state for scoring to work?!

[thin stratus]

Cause if that Character dies no one otherwise would know who he is

Unreal Tournament does it the exact same way with the Redeemer Projectile

The only issue I have is with RootMotionSources and the CMC

Everything else works just fine as expected

Currently I'm trying to puzzle together why a frame after unpossessingthe CMC suddenly has PredictionData again, including actual values for CurrentClientTimestamp

Even with Tick not doing anything

Where the hell is it getting that Data back from..

Ah, there are still ServerMove calls coming in after the Unpossess. Guess that makes somewhat sense

[latent heart]

Huh? So what? You only need to store a reference to the PS on the character to solve this.

[torpid girder]

Hello, is there any logic in AGameMode that needs to be called before a player can spawn into the world?

[twilit radish]

Generally I think the first approach is the best, I would not specifically specify "I interacted with the elevator" because of the obvious scenarios of "What if I add a door? A cup you can pick up? A different button you can press that's not in an elevator?" and with that also comes state management like "What if I don't want a player to press the button when they are holding something with both hands already like a chair they could have picked up?". Then you need to link those all manually up and that will get an absolute mess.

However I would take a slightly different approach to what you're currently doing. Instead of a generic "I interact with the elevator" implement the generic way per button. The button should already know what elevator it belongs to. So if the button is the interactable object you can easily implement it as "Button 1 is pressed, get the elevator object it belongs to, lock whatever state you need to lock and make the elevator do its thing".

Sorry first sentence should have been "with the elevator" not button.

My first thought was to have it as an interface, but I'm not sure if interface references can be networked honestly 🤔
You could definitely try it though, if it works it would look something more like:

UFUNCTION(Server, Reliable)
void Server_InteractWith(IInteractableObject* Object, ACharacter* Interacted, Payload?)
```Then you can decouple the logic from an actor in specific.

[thin stratus]

Project is too big already for this. Would need to get that different PS/Controller everywhere

The default Getters aren't virtual.

[twilit radish]

For payloads in specific you could do it similar to the CMC where you just pass a struct/class or whatever along with it so that you can then cast towards an object that inherits from it and can push that same inherited class/struct over the RPC.

Which could also solve your button issue if you don't want to use (or can use?) an interface for the current actor you have.

Yeah, it's definitely not always practical, even possible or it making sense to have separate objects for everything and in those cases a payload definitely makes more sense. Ideally I still think the buttons can just be processed through an interface, but if a payload does the job too why not 😛

But that was in the specific case of the buttons 😄

As long as it's not a specific RPC for all your specific objects. That will absolutely get a nightmare to manage 😅

[frank birch]

so, since Warning: CanServerTravel: Seamless travel currently NOT supported in single process PIE
How do I enable multi process PIE?
The following checkbox is unchecked and I restarted the engine but it still tells me that I am single process

    if (World->WorldType == EWorldType::PIE && bUseSeamlessTravel && !FParse::Param(FCommandLine::Get(), TEXT("MultiprocessOSS")))
    {
        UE_LOG(LogGameMode, Warning, TEXT("CanServerTravel: Seamless travel currently NOT supported in single process PIE."));
        return false;
    }

ok, then I need to run UE with MultiprocessOSS 🤔

yep, that did it ❤️

[woeful ferry]

Are there any good classes for generating unique IDs for replication? FGuid seems like a whole lot to replicate

Need it to identify indices in an array.

[frank birch]

what is the problem with FGuid? 🤔 however, if you only need indices of an array... then do make that ID the index of the array 🤔

or make a global integer that increments each time you ask for it, so you always get the next one 🤔
an infinitely growing int will always be unique

[woeful ferry]

FGuid is 128 bytes

Some indices are supposed to be recongnized as one, that's why I need a identifier for those

But yea I can do the integer thing

[frank birch]

make a singleton static thingy (or a subsystem) that has an uint (uint8, uint16, uint32, whatever gives you enough indexes) and every time you ask for a new ID you return the current value of that int and then increase it. Only the server should call/have this thing. The server gets a number and gives it to the corresponding player.
Downside: Any player can guess the others number and maybe impersonate them (if they are evil)

no idea how sensitive this is 🤔

[torpid girder]

hello, i am trying to figure out why i can't simulate a dedicated server in UE, i am running as a listen server, but the problem is it seems like a client is never spawns, so i don't see two calls the player controller, one from a server, one from a client

[frank birch]

make it look like this

you will get a terminal (the dedicated server) and a game screen (the client)

[torpid girder]

let me try that

i thought client was p2p

wow something is very broken LogLinker: Warning: [AssetLog] D:\src\frith_PHANTEKS5950X_ARoK\arok\Avalon\Content\Blueprints\MainMenu\BP_GM_MainMenu.uasset: VerifyImport: Failed to load package for import object 'Package /Game/Blueprints/MainMenu/BP_Avalon_MainMenuController' i can find it

[torpid girder]

thanks! that was what i needed! I found my 1 bug, 1 more to go

[thin stratus]

In theory, if I have a Client owned Actor and I send an RPC in frame x and I then remove the ownership after sending it, what does the server do when receiving the package?

Does it check if the Actor is still allowed to process the ClientRPC?

[robust oriole]

how do i go about constructing an object at runtime that is stable for replication?

or is that even possible

[thin stratus]

Depends on who is resposnible for the movement

But you need some interpolation either way, yes

Yeah then interpolation on the client side

Uff, not sure. CharacterMovementComp is very tricky to follow

ProjectileMovementComponent might have some interpolation code

[frank birch]

Why doesn't game mode notify games rate when a player arrives/leaves the game/server? Would a multicast in gamestate called when gamemode decided be enough?
(Just making sure I didn't miss anything)

[twilit radish]

notify games rate
Sorry, but what are you referring to with 'games rate'?

[fierce grove]

What is the best way to attach a pawn to a mesh in multiplayer? it seems to work randomly when trying to attach a pawn to something.

[twilit radish]

Don't quote me on it, but it seems like it just validates the data first and then immediately after turns it into a bunch. Either queues it up or sends it immediately to whatever processes the connection. But I would expect at this point for it to not be checked any more. Would be a bit ridiculous if they start looking through bunches that are already being send out to see if it actually should have.

What may however be an issue that I'm not sure about is that if you remove the owner before it has had the chance to be send out whether it can still refer to that owner connection. (Which I kind of assume not).

[real ridge]

guys does anyone know why I have bugged timer when I respawn my player ? :/

[thin stratus]

Right, I do notice that unpossessed characters aren't processing old ServerMoves anymore

So something somewhere must filter

The MoveCOmp for projectiles has replication :P

[twilit radish]

As in the ones from Client -> Server or the ones from Server -> Client?

[thin stratus]

Client -> Server

[twilit radish]

Well that makes sense right? The server doesn't accept incoming packets from actors that aren't owned by that player. So if you remove the owner on the server then the server is going to reject that as otherwise cheaters could do a lot of stuff they shouldn't be able to do.

[thin stratus]

Yeah but I'm talking about ServerMove packages that were already send by the client

But haven't reached the server yet

Because if that would happen, then the server would set/increment the Timestamp of the Client in the Prediction Data. And since that is 0.0 on unposessed pawns (after unpossessing) I assume that this doesn't happen

I noticed that if I unpossess but set the Owner back to a PC (no possession), it process "old" ServerMoves from before unpossessing

Hence me wondering if there is some filtering happening when receiving packages

[frank birch]

sorry, tried writing from my phone and got autocorrected

Why doesn't AGameModeBase notify AGameStateBase when a player arrives/leaves the game/server?
(Just making sure I didn't miss anything) any good reason to not do that myself?

[solar stirrup]

Got a quick question, what exactly makes subobject replication expensive? I know the packet header also needs to contain the outer actor's id, but anything else i'm missing?

Makes sense to avoid it for the CMC as it calls tons of RPCs every second, but what else?

[thin stratus]

Character actually calls those RPCs

Just to be clear :P

[solar stirrup]

Well, yeah because they wanted to optimise the cost of the RPCs

afaik

[thin stratus]

Yus

[solar stirrup]

But like, what else is there to know about subobject replication that makes it costly?

Because I'm not really seeing any other reason to really avoid them, unless you have a CMC scenario

[twilit radish]

Yes it happens when receiving packages on the server. The channel calls GetNetConnection() on the actor belonging to that channel. Then it checks if that connection is the same as the current connection for the channel and if so sets:

RepFlags.bNetOwner = true;
```This is later on used in `DataReplication.cpp` to check through a method called `ShouldCallRemoteFunction` in the net driver if it actually allows it or not which it doesn't allow in this case any more because you have removed the owner at the time of processing it.
https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Private/DataReplication.cpp#L1315
https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Private/NetDriver.cpp#L6689-L6692

So the owner must be set at the time that packet arrives or it will ignore it as it can't guarantee any more that you are / were the owner of that connection. Even after already having send it from the client.

[thin stratus]

Alright. Thanks for confirming.

That explains the bug I have when setting the Owner/Controller again after unpossessing

sigh

[frank birch]

when is a rep notify fired? before or after the variable changes? 🤔

maybe before this... repnotify is meant to run on client machines, right? When the server changes something clients get a repnotify, right?

[river hazel]

After. You can get the old value in the parameter of the onrep

[low helm]

https://tenor.com/view/star-wars-revenge-of-sith-anakin-vader-darth-vader-gif-19644107

[twilit radish]

public:
  UFUNCTION()
  void OnRep_CustomVector(FCustomQuantizedVector PreviousValue); <---- PreviousValue
```Unless we're talking blueprints then I have absolutely no clue.

[frank birch]

How can I tell if a PlayerState is "local"? 🤔
When the localrole is remote and the owner (playercontroller) exists? 🤔

[twilit radish]

I would just grab the player controller from it and use IsLocalController() on that.

[frank birch]

yep, just realized 🤦‍♂️
thanks ❤️

prior safety check because controller might be null if a remote client asks for somebody else, right? 🤔

[twilit radish]

Player Controllers aren't replicated to others. So if you're doing this from client 2 (client 1 being the host for example) while being on client 3 then client 2's player controller doesn't exist.

[frank birch]

from my previous repnotify question:
RepNotifies only run on clients and never on server, right? 🤔

[twilit radish]

In C++ correct. In blueprints they do run on the server.

[frank birch]

😨 under what condition do they run on the server? whenever the value changes?

[solar stirrup]

Yep

The Set node fires the rep notify

[frank birch]

Okay, just to make sure blueprint isn't doing a nasty on me, using the Set w/ Notify node from a client... only sets it locally, right? 😰
please tell me that it's not a disguised rpc 😰

[solar stirrup]

Yep locally only

[frank birch]

ok, at least I am safe on that one 😅

[wheat niche]

i started my multiplayer game in unreal engine as follows: Num of players2, net mode: play as listen server and new editor pe. On My GamMode class i tried to create a userwidget and add it to the viewport from the player controlelr that i got from the postonlogin event but i get this error: Only Local Player Controllers can be assigned to widgets. PlayerController_1 is not a Local Player Controller. what should i do now?

[chrome bay]

But unlike C++ it will also call the OnRep event. BP networking is gross and hackz

BP "Notifies" are more like "call this function whenever this variable changes".

Which sucks

tbh

[frank birch]

GamMode class i tried to create a userwidget
oof, please reconsider 👀
ListenServer should work, but dedicated servers will go up in flames because they don't have a screen and GameMode only lives in the server 👀

Consider creating your userwidgets either in the BeginPlay of HUD class if you are a peasant like me, or do what eXi does: #multiplayer message

[potent coral]

for some reason this code wont trigger a RepNotify when called on client, what am i doing wrong?

thats the rep settings i used on that variable

when i click the widget on server it works fine and triggers the OnRep, though not from the client

[chrome bay]

Widgets don't/can't replicate or have replicated properties

Widgets should talk to/read from some other object that contains the state and does the replication

[potent coral]

so i just pass on the owning player from the widget and do the replication in my pet code?

[chrome bay]

TL;DR, widgets shouldn't have netcode / game state info in them

The widgets' domain starts at showing stuff to the user about the game, and taking inputs from them, but that's it

Putting actual game logic in them is very not ideal

[potent coral]

the other stuff i made works though

[chrome bay]

I doubt it does

[potent coral]

but it does

[chrome bay]

That won't work in MP

[potent coral]

i tested it, it works

[chrome bay]

Unless you are actually on the Server when interacting with that widget

Won't work for a client

[potent coral]

it works on both server and client

both can rename him and both see the change

[chrome bay]

It can't work. You're calling an RPC in a widget which has zero network functionality

[potent coral]

do i have to stream it to you?

[chrome bay]

Only if you want me to repeat myself...

[prisma snow]

what if slate has secretly networking capabilities that unleash 100% of Unreal's power?

[chrome bay]

The only explanation is the test-case is broken

[prisma snow]

Maybe Sweeny wanted us to code our game logic using slate macros

[potent coral]

maybe the problem is where im constructing the widget?

[chrome bay]

If "Pet" is a replicated actor that was spawned by the Server, then only the Server will execute that "change name" function. A "Run On Server" function that is called on an object with no network functionality is just treated like a regular function

[potent coral]

but then i dont understand why it works lol

[potent coral]

because here i make sure the widget is created on client

[chrome bay]

The only logical explanation here is that "Pet" is not a replicated actor, and instead something that exists locally on the client

[potent coral]

pet is a Character

[chrome bay]

But who spawns it?

[potent coral]

its placed on the map

[chrome bay]

What's 100% definitely happening is the "Name" property is only changing on the client interacting with the widget

for everybody else, it'll be whatever it was before

unless the server player changes it, in which case it'll replicate (assuming it's a replicated property)

[potent coral]

the renaming works for both

[chrome bay]

Although there's another wierd thing happening here which is that you're setting a property via multicast RPC

That looks like the Server changing it to me

[potent coral]

name isnt replicated, it comes from the text box

[chrome bay]

I mean the "Name" property on the Pet itself

Also FText shouldn't be replicated either, it's localised text

[potent coral]

there is no name property, i just set it in a text render with this event

[chrome bay]

The deeper we go the worse this gets 😄

[potent coral]

yes xD

[chrome bay]

State = Properties always

Otherwise, RIP

Relevancy + Late Join will break instantly

[potent coral]

wouldnt the text render component just get replicated to anyone who joins because the character is replicated?

[chrome bay]

negative

Text Render component doesn't have any replicated properties

So even if you mark the component as replicated, it has no actual data to replicate

But also, since it's being changed via a multicast RPC, any clients that drop that RPC or don't receive it won't change the text locally

And if the actor leaves/reenters relevancy range, it'll be back to default too

Any persistent change you make needs to be a property set by the server and replicated to clients

Then you use an OnRep to apply changes if needed

[potent coral]

ok thx i will make new code based on this

but then how would i communicate stuff from a widget to the server?

[prisma snow]

you don't

[chrome bay]

^

[prisma snow]

widgets only reflect/display the state of the game

[chrome bay]

The widget should basically read info from the game, and ask the game to do stuff

[potent coral]

so from my widget i trigger a function/event in my character that sends stuff to the server?

[chrome bay]

Yeah exactly

What's annoying is Epic could probably make this easier to understand by not allowing you to add replicated vars/events inside objects which don't support it... but I've been asking for that since 4.0 sooooooooo

[prisma snow]

Ye at least it shouldn't be there in the blueprint graph

[chrome bay]

Just keep in mind you can only call RPC's on stuff you "own" too

yeah

[potent coral]

well at least now i know xD

[prisma snow]

For simple setup I recommend PlayerController or Character

[chrome bay]

Lots of people understandably try this stuff then end up hitting walls

And it's not obvious if you're new to MP

[prisma snow]

Is Character owned by the client in the same way that the Player Controller

?

[potent coral]

not sure, there is also local player controllers

[prisma snow]

forget those

[potent coral]

they not needed at all?

[prisma snow]

not sure but it's related to multi-screen local games and messy from what I understand

so better use the proper ways for networking

[potent coral]

ohh ok

[frank birch]

riding on the question, if for any reason (most likely the reason is that I fucked up) a client that doesn't own an object attempts to call an RPC of that object...
Nothing happens? or the RPC is ran locally? 🤔

[chrome bay]

The engine will just log the error and do nothing

It checks on client before sending, and also on server when receiving

[frank birch]

it logs it? that's good! 😅
if I am not seeing any of those logs it means I didn't fuck up 😛

is UProjectileMovementComponent somewhat replicated? 🤔

[chrome bay]

not directly

It just moves the actor, but the actor itself would replicate it's transform/velocity

[wheat niche]

Hey, i have a problem. im using the event onpostlogin and im trying to add a numg to the player controller but i get this error Only Local Player Controllers can be assigned to widgets. PlayerController_1 is not a Local Player Controller. Can someone help

[twilit radish]

Unless this is a local multiplayer game don't add UI in the game mode to player controllers. It only exists on your server and not on your clients, they also do not have any networking capabilities. So you're trying to assign the widgets to a player controller that's indeed not local. Initialize them in something like the HUD instead 🙂

[wheat niche]

Okay 🙂 And what about the PlayerState could i add it there? Or is it the same thing?

[twilit radish]

The player state gets replicated to other clients too, not the place you want to initialise UI exactly either I would say.

[wheat niche]

Okay thank you for the response then ill have to try it in another way 🙂

[kindred shadow]

is there a way to fallback if you have multiple platformservices?

I currently have and I'd like to be able to not have to manually edit this with GOG or any other service name, wondering if there is a way to handle this

[OnlineSubsystem]
DefaultPlatformService=STEAM

[pallid mesa]

You'd need to build multiple authentication graphs for that

or use EOSPlus w/ EAS and setup custom providers

[vagrant grail]

How to replicate the mesh of the BP_ThirdPersonCharacter being rotated 90° horizontally (like if he's sleeping). He's rotated locally but it's not replicated to others

[pallid mesa]

haha thats cool

well there are many ways to do this.. through animation

and having some sort of replicated proning variable that you set in the server

read that from the anim graph and play the looping state

or you can simply Have an OnRep variable in your character that simply sets the rotation of the character mesh

[vagrant grail]

with the rep variable, it doesn't work

[pallid mesa]

because you aren't setting it in the server

😅

[twilit radish]

Hey Vori, when are we getting an article on Iris? Asking for a friend.. 👀

[fathom aspen]

I'm the friend, I affirm the question

[twilit radish]

😂

I expect an article from you too.

[fathom aspen]

I will do it once vori gives up

[twilit radish]

Poor Vori.. 😅

I'm honestly just curious about the performance. I've still not seen anyone post any comparisons between the two.

[fathom aspen]

Once someone gets it to work they will do

[twilit radish]

Does it not work?

[fathom aspen]

I had nightmares trying to make it work. But the other day I saw a post where you need to edit some ini files for it to work

There is also a CVar you need to turn on (but not sure if that alone is enough - don't think so)

[twilit radish]

You definitely need to set a pre-processor too somewhere, all that code is #if IRIS 😅

[misty stirrup]

anyone know of something that explains the client connect to server process?

from how i understood the documentation, you can seamless travel to a server you've connected before, so i was thinking maybe if on initilization it did a quick connect to each server??

[twilit radish]

https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Classes/Engine/NetDriver.h has some comments about it.

You can't really seamless travel between actual instances. An instance/server it self can seamless travel to a different world though. But the connecting to a server is always a hard travel.

[misty stirrup]

so what do people have to rewrite to get soft travel in unreal games?

[twilit radish]

I don't exactly know, I never attempted it. Assuming we are still talking about what you want to do and not regular seamless travel. It's possible through modifying the engine I suppose, there was someone who did it not too long ago in here but I don't know what parts they modified. Although I wouldn't expect there to be any topics about this.

But IIRC the initial connection to the first server was still a hard travel.

[real ridge]

guys can I ask? I have timer in game state with replicated time and I am printing it on my screen but when I die and my player get respawned its counting little weird like 2 numbers were there it looks like this here is how I am checking if its valid to not create new one but it seems problem is not in it
also my name get deleted after respawn
thhis is how I am respawning

[fathom aspen]

A link to the topic and a good luck wish: #multiplayer message@misty stirrup

[vagrant grail]

I do

[pallid mesa]

you cannot send Rpcs from a non owned actor

[pallid mesa]

im trying to deal with Wizard stealing me content haha

[vagrant grail]

Then I'm stuck, how to make when I right click on my bed my mesh turn horizontally ?

[pallid mesa]

your interaction interface can do such thing

you can put your interaction component in the character or the controller and send rpc events from there

[vagrant grail]

So I put the Sleep and Wake Up events inside the BP_ThirdPersonCharacter instead of BP_Bed ? And call it from the Bed BP when interacted with ?

[pallid mesa]

you'd do it a bit more generic Diver

you'd create an interaction component or interface

[vagrant grail]

on the bed or on the BP_ThirdPersonCharacter ?

[pallid mesa]

and rather than call it "Sleep" you call "Interact"

on the character

and the bed implements the interactable inteface

[vagrant grail]

Look the bed has already the "Interact" interface

And it's called by the BP_ThirdPersonCharacter

[pallid mesa]

yeah, so your interaction happens in the server which is good!

:D

now its a matter to implemenr the behaviour

[vagrant grail]

the behaviour inside the OnRep function ? It's alreayd impelmented

[pallid mesa]

u dont need the extra RPC's

if the interaction is happening already on the server

[vagrant grail]

which ones ?

[real ridge]

noone has idea why this happening? I tried remove widget its not because it and when I print value from server seconds and minutes they are alright

[pallid mesa]

the ones in sleep/wakeup

[real ridge]

just in widget it seems wierd

weird

[vagrant grail]

So if I'm understanding this correctly, I move all the logic inside the OnRep, right ?

[pallid mesa]

no

[vagrant grail]

then I don't understand

[pallid mesa]

so

assuming your interaction system is already giving you server flow

you don't need more server RPCs

because you are already in the server

in fact those server Rpcs will never work cause the bed is a non owned actor

[vagrant grail]

So in simple words, what do I have to do ?

[fathom aspen]

Honestly those are simple words, you are just lacking the knowledge to understand

[vagrant grail]

I understood the part with the server, but what do I need to do with the Sleep and Wale Up Event besides changing those to not be server anymore as the workflow is already server

[pallid mesa]

so once you got the interact flow in the server

you can call a wakeup (boolean) function in the character

and have the onrep implemented in the character

if you did everything correctly, the mesh should rotate, also ensure u are using the proper axis

[pallid mesa]

honestly, its very weird

mh i may have an idea...

are you adding this widget to the viewport when you respawn by any chance?

xD what can happen is that you dont erase the previous widget in every respawn

[vagrant grail]

Like so ?

This works locally but not in multiplayer ☝️

[turbid island]

How do I replicate this event? When it fires it just aims at 0,0,0 because the server/client doesn't know anything about other's mouse positions (I think). This event is on tick.

It is supposed to just smoothly rotate to face the direction the mouse is in. It is a somewhat fixed camera arpg type game, so I can't use control rotation without it messing things up.

[pallid mesa]

nooo

[vagrant grail]

? 🤔

[pallid mesa]

this is local execution

that's no server flow

also get player character when you are in the character is no bueno

Casting is not getting

[vagrant grail]

This is not in the character, this is in the bed BP ☝️

[pallid mesa]

the bed BP doesn't have an input component and isn't owned by your controller to be able to process input 😦

[pallid mesa]

also, if you are calling the two events in your character, remove these other two variables

[pallid mesa]

send the cursor position through a server rpc to the server and do the rest of the calculus there

[teal jolt]

where would one go to get a few volunteers to run some testing for a peer to peer networking test in unreal5?

[real ridge]

I do but before every adding to viewport I am removing it from parent

so it's should be cleared

i don't understand it

maybe I fucked somewhere maybe it's server timer and its showing for client too idk

honestly

[pallid mesa]

Woopsie doopsie, it looks like you haven't clear it out properly

[real ridge]

sh*t Sherlock

[pallid mesa]

hahaha

but indeed take a look right when you spawn the new widget and right when you remove it

[turbid island]

is that possible in bp or do I need to write that in c++? new to multiplayer,

[real ridge]

will

[vagrant grail]

Better ?

[pallid mesa]

no, in Blueprints you can use RPCs to call events in the server... But you can only do server RPCs from client owned actors, like the controller or the player character

[real ridge]

can I ask? this is for person character? like movement with mouse?

because I need something similar for my plane and I don't have idea how to make jt

[pallid mesa]

so you can pass in the mouse input to the server @turbid island

[turbid island]

I understand that, but don't know how/where to start writing the code for that. Do you have a simple example you can link?

[pallid mesa]

@vagrant grail save up on rpcs! you are already in the server diver!

[pallid mesa]

Take a look at the network compendium from Cedric Exi, its pinned on the top resources

https://cedric-neukirchen.net/Downloads/Compendium/UE4_Network_Compendium_by_Cedric_eXi_Neukirchen.pdf @turbid island

[vagrant grail]

The Interact interface call is always server sided ? Otherwise I don't understand why we're in the server in the Bed BP 🤔

[pallid mesa]

yeah, look here Diver

[turbid island]

Similar to a game like Diablo 3, but movement with WASD, so you can aim around while moving and using abilities. I pretty much just started it so I don't have anything to show yet lol.

[vagrant grail]

oh

[pallid mesa]

i recommend you to put some print strings to understand if you are in the server or not

its a bit hard to keep track of it at first, but you'll get used to it

[vagrant grail]

What about those 2 nodes, what should I do with them ? Delete them ?

[pallid mesa]

you don't want rpcs there because you are already in the server

so you should make them... not rpcs

and if you want a RPC version of the node

just make a RPC version of the node

hehe

[vagrant grail]

better ?

[pallid mesa]

yes sir

now...

forget about the jump event

and test this first part

[vagrant grail]

works locally but not in multiplayer

[pallid mesa]

can i check the interact method

[vagrant grail]

https://i.gyazo.com/45d8e9692daa08c0b4deab9eaaaf7c06.mp4

[pallid mesa]

can can you verify that you reach the interact event in the server?

[vagrant grail]

yes it reaches it

[pallid mesa]

can you show me your onrep variable?

[turbid island]

Thanks, that makes complete sense, I somehow managed to forget you could add inputs to function. lmao

[pallid mesa]

hahahe, no worries Matt! Happy deving! 😄

[pallid mesa]

one sec brb bathroom

[real ridge]

and are u printing your mouse cursor on window? and moving with it or?

[pallid mesa]

aight im back

im sorry that was a kinda long break

@vagrant grail So I think I figured while I was in the bathroom

you cannot really rotate the character mesh 😬

because the sim proxy is actually refreshing its transform every tick

[vagrant grail]

https://tenor.com/view/what-why-huh-steve-harvey-confused-gif-17449734

[turbid island]

nah using mouse only for aiming/interactions, I made a project with with mouse movement before and it feels pretty bad without spending tons of time making sure the nav mesh is perfect. I also don't like how limiting it is. You can't really have any platforming elements with mouse movement.

not sure if i understood/answered your question

[pallid mesa]

so your logic is indeed good, but we cannot simply rotate the mesh like that

[vagrant grail]

any solution then ? 🤔

[pallid mesa]

basically the logic that we built together and the logic that you have now

animations!

[vagrant grail]

I don't have laying down animations 😒 that's why I wanted to do this this way

[pallid mesa]

you can do it on tick i believe, just take this "prone" boolean

and apply this rotation every tick

i think this might work

[dark edge]

On Tick you should be sending AimPosition or AimDirection to the server. Either that or send it when you try to do an ability. Depends on if other people need to see the direction you're facing all the time or not. I'd do it on tick tbh.

[pallid mesa]

yes indeed in tick works XD

just tested it

[vagrant grail]

yeah, except when I come back locally I'm facing my back 😄

[real ridge]

oh thank you for answer!

[grand kestrel]

Did you notice how Lyra jitters on sim proxy when turning in place because they're... rotating the character mesh

The proxy mesh smoothing conflicts

[pallid mesa]

yes! I did!!

[grand kestrel]

I bet paragon and fortnite do it too

[pallid mesa]

In fact it should be fixed in 5.1.1

[grand kestrel]

Really? I already made my own solution that doesn't rotate mesh and just uses actor rotation 😄 Its flawless

[pallid mesa]

be careful with that 😬

[grand kestrel]

what does that mean

It works well, its better than Lyra's solution

[pallid mesa]

you cannot turn the capsule just like that!!

the proper solution is un UT

[grand kestrel]

[pallid mesa]

have an animation that does the turning for ya :D

[grand kestrel]

I still rotate the capsule based on extracted root motion from TIP anims 😄

[pallid mesa]

as long as you are careful with the cmc interop it should be fine

I missed it was you Vaei!

I'm sooo sleppy you don't imagine 🤣

[grand kestrel]

It definitely is fine 🙂 It's very much battle tested

Zero desync zero jitter in any situation

As far as I'm concerned Epic have been teaching the wrong way to do TIP

If we're turning the character then just... turn the darn character

[pallid mesa]

yeah you've been here for ever, thought I was speaking with someone else 😄

[grand kestrel]

Ah yeah I jumped in 😄

[pallid mesa]

I'm kinda curious what Lyra does in 5.1.1

because if you look at the release notes, its claimed to be fixed

[grand kestrel]

Probably something hacky with the mesh interpolation

Did try that myself before thinking "why am I copying them when it clearly isn't adequate"

[pallid mesa]

but yeah if you look at UT, the turn in place is basically rotating the capsule

and having animations that counter rotate it

[twilit radish]

How old is UT now though?

[grand kestrel]

I didn't think to look at IT, but my system follows that principle

[pallid mesa]

the genious sync move

UT is from 15''

[grand kestrel]

UT still teaches a lot worth learning, the projectile prediction is worth its weight in gold

[pallid mesa]

yes, archaic, but just works™️

[grand kestrel]

I completed that prediction years back, even implemented rewind for projectiles characters vs projectiles

[twilit radish]

GAS would like to know your location.. 😛

[pallid mesa]

yeah unfortunately GAS doesn't handle predictive actor spawning

[twilit radish]

It does not?

[pallid mesa]

I wanted to make an article specifically about that

[grand kestrel]

Yeah that's when you use UT's solution

[pallid mesa]

but I needed to chillout from articles

[lost inlet]

if only more happened with the NPP too

[pallid mesa]

not explicitly

[grand kestrel]

The arrows I fire in my game will use UT style prediction. Its quite simple really, you tick the movement component based on the instigating player's ping 😄

I had UT projectiles pooled as well

[pallid mesa]

NPP is quite usable, saw Snaps implement a movement component in less than a week with it, it's kawl

now, needs some love, its obvious

[twilit radish]

I've started learning GAS since 1-2 days ago and I already managed to corrupt my project with it somehow x)

[lost inlet]

iirc it's effectively abandoned though

[grand kestrel]

Yeah GAS isn't really that friendly to get into but once you've beaten your head into the wall long enough its truly fantastic

No its literally abandoned

[lost inlet]

so GAS is the only real out of the box prediction system that isn't the CMC

[pallid mesa]

check udn sswires

read a bit around in udn

[thin stratus]

GAS prediction system is basically non-existing though

[lost inlet]

I haven't started my new job yet so I'm temporarily out of a UDN account lol

[pallid mesa]

I like when eXi roasts UE systems 🤣

[grand kestrel]

The lack of rewind is a bit unfortunate

[thin stratus]

That's part of my job

[pallid mesa]

yes!

[lost inlet]

and I thought on UDN someone from Epic stated that the NPP wasn't receiving any future major development

[twilit radish]

But.. Isn't one of the main selling points of GAS its prediction/networking support?

[thin stratus]

The prediction is more or less limited to the few things GAS offers

[grand kestrel]

IMO its main selling point is the gameplaytag implementation 🤣

[lost inlet]

gameplaytags are independent though

[pallid mesa]

i gotta go now guys, have a good evening/night o/

[thin stratus]

Activating an Ability. Applying a GE through that Ability and fwiw GameplayCues

[grand kestrel]

Yes but they implemented gameplay tags into an ability system is what I meant

[thin stratus]

Anything beyond that is kinda useless

[grand kestrel]

I'm just too lazy to type properly

[thin stratus]

Specifically rolling back your own stuff when something gets rejected is kinda shite

And since you can't predict removal of GEs, you can also throw the whole "Use GE for Cooldowns" out of the window

[grand kestrel]

GAS seems like an afterthought "oh they found our paragon stuff and actually want to use it, might as well"

[thin stratus]

Which the majority of people do due to docs saying so

GAS is used on Fortnite too though

[twilit radish]

The cooldown thing and not being able to predict it supposedely is definitely a bit awkward from what I've seen so far yes.

[thin stratus]

Epic doesn't use GEs for cooldowns either

But you only learn that here randomly when Cedric or someone else rants, or on UDN

<3

[twilit radish]

😄

[thin stratus]

Or in some random forum post fwiw

[twilit radish]

Imagine having UDN access though.

[thin stratus]

ANYWAY, I'm still mad about CMC and RootMotionSource stuff atm

[twilit radish]

Which then links to UDN... 🥲

[thin stratus]

When we worked on The Ascent, I honestly wondered how anyone releases a game of that size or similar without UDN

The Engine was falling apart more and more the further we got

[grand kestrel]

Wait what did they do to root motion sources

[thin stratus]

And most of the things asked by us were things that could affect everyone, but the questions had to be private for reasons. So others will still have to figure stuff out on their own

[grand kestrel]

I "sync" my ragdoll using those, did they break something 😄

[thin stratus]

No, but I have issues with them atm

I followed UT's Redeemer logic of temporarily possessing another pawn and keeping Controller Owner and PlayerState alive on the "main" Character. And everything works just fine, only RootMotionSources are breaking apart if you have anything but a possessed Character or unpossessed Character.

Unpossessed Character with a Controller being valid? Straight to jail.

[grand kestrel]

Oh no 😄

[thin stratus]

TickComponent doesn't even handle that case, so I had to write that myself.

And even then, since the Character still has an Owner, it receives the ServerMove calls from before unpossessing, which recreates the Server Prediction Data

And sets the CurrentTimestamp on them ONCE

And to use RMS, you gotta either have 0.0 as CurrentTimestamp in that Prediction Data

Which is the case if you unpossess

[twilit radish]

In the defence of CMC, this is a very specific thing to do though.

[thin stratus]

Or have it increment properly, which happens through ServerMove

But since the RPC only comes in like a handful of times and the not until I re-possess the character, it's stuck

So my idea for Monday is: In Server_Move, return when it's not a fully possessed character

Probably gonna hit the next wall after that

But since a lot of internal stuff relies on Controller and PlayerState pointers and those Getters aren't virtual, I can't really inject my own pointers

[grand kestrel]

Btw cedric question since you're here, my project is still ~3 years from anything akin to completion, would it be worth switching to iris early on (i.e now) to try and future proof the netcode since I'm currently focusing on developing that

[thin stratus]

Also the project is so big that I don't want to go through every little possible reference and replace it

[grand kestrel]

You'd probably want to call FlushServerMoves too

[thin stratus]

I'm half sure you can switch over to Iris later on anyway

[thin stratus]

Abilities do that already on Activate

[grand kestrel]

They did say its meant to be backwards compatible true

You're right

Saw that yesterday 😄

[thin stratus]

I mean, you can enable it and try it out

I personally wouldn't

[grand kestrel]

Yeah I'll wait until they develop it a bit further then

[thin stratus]

It's good to expose that to BPs and call it in Abilities if there is a delay of any form between Activate and the RMS being applied

Which we found out the hard way

[grand kestrel]

Yup Roy told me that one recently too, did that myself but don't yet have any delays that need it

[thin stratus]

We have a Cast time before and it took me ages to figure out why with the cast time it was causing corrections on the RMS

Also, about Iris, and also these new Materials. I just gave my employees the links to the "docs" and had them learn it upfront. Gotta enable it once it's taking over

But with Epic, no one knows if that actually will happen any time soon

[real ridge]

Question it's good to have same game mode in menu and my game map?? where I do have login and Lobby and options? it's all offline+websockets for lobby and chat and then I am joining session where is also game mode, should this 2 maps have different or same game mode?

[thin stratus]

I strictly cut my game in as many GameModes as possible

Usually:

• GameMode_Base
  -- GameMode_MainMenu
  -- GameMode_Game
  ---- GameMode_Lobby
  ---- GameMode_Gameplay

And then Gameplay has children for custom stuff if needed

And that goes for all the other classes too if needed

So PlayerController_Base, _MainMenu, _Game, _Lobby, _Gameplay

GameState_Base ...
PlayerState_Base

Not all of them are needed

E.g. PlayerState_MainMenu or GameState_MainMenu might not be needed as I usually have no custom logic in the mfor MainMenus

AND NOW, I will head to bed

CYA

[real ridge]

i understand but I should not use game mode base and game state base when it's multiplayer,or?

[real ridge]

gn

[thin stratus]

The naming might be confusing, sorry.

GameMode_Base is my own class. Child class of AGameMode

Same with GameState_Base

[real ridge]

okay so we still stick with mp

[thin stratus]

I actually never use the simpler AGameModeBase versions of epic

[real ridge]

right thanks

i did , do not do it pls

[fathom aspen]

Not if PlayerController persist the seamless travel

This is when that happens

[hollow swallow]

very new to multiplayer, but am i able to have my game (very early stages) on steam that i can share with friends so they have it in their library and it can be update etc... but its not published on the actual store? Mainly was want it for testing

[prisma snow]

interesting, would that be for projects of any size (not counting trivial stuff)? Idk the kind of projects you work on, sometimes I see this decisions to depend on the scope/amount of people working on something

[dark edge]

yes

[graceful flame]

You have to pay the steam application fee in order to host your game.exe on steam. Then you can have an invite only closed beta.

[hollow swallow]

Yeah i did see that, im happy to pay that, but how playable does it need to be at that stage? could i just use the 3rd person character and then set that up? or do i need a fair amount done first?

[graceful flame]

Alternatively you could upload your game to any other file host and distribute copies privately.

[dark edge]

It can be literally anything if they're given a key through steamworks

[hollow swallow]

yeah steams just easier so my mates can just update on the go xD

rogey thanks guys appreciate it

my first project so ill start diving into it. want to get all the nitty gritty multiplayer stuff done first

[dark edge]

I'd get the ball rolling on Steamworks asap

takes a while

I've only ever done the developer one, the release state override might depend on the product passing some sort of QA

[hollow swallow]

Cheers mate, looking into it now. how longs a while? a few days?

[dark edge]

Took me a few weeks but that includes making my LLC and business bank account etc

[hollow swallow]

"Before your store page or game build can go live, there is a brief review process where we run your game,"

not sure if i can just have a very basic person running around a room then xD

i think its more refering to if its a full release though

[graceful flame]

It's more like they want to filter out all the illegal / bad stuff, the quality of your game is up to you. But I'm not a lawyer or Valve employee. Just taking a guess.

[opal pulsar]

thoughts on prefixing functions you only want to run on the Authoritative version of that actor with Auth_, similar to how its convention to use Server_ or Client_

[prisma snow]

it is a good approach and setting up the infrastructure so early will be very valuable later on, I see it as an excelent decision

[hollow swallow]

Yeah, i only enjoy multiplayer games, so i want my first project to be one and learn all that side of it first

easier than trying to convert a game after xD

[low helm]

I strongly suggest learning non-multiplayer fundamentals before trying multiplayer code

Anytime you write multiplayer code there are like 12 things that can go wrong

but if you're already new to code, that adds an additional 20 things that can wrong, so your chances of solving problems through guess-and-check become exponentially less likely

[hollow swallow]

yeah i understand that, i originally started with unity. no coding experience. had a basic multiplayer game, map, hp, xp, leveling, weapon switching, ai and a few more all working correctly over the network in about a month. it was a massive headache, but im glad i learnt it early as you have to write everything completely different to suit

it will probably never be a fully released polished game, more just a hobby to share amongst friends

and so far, networking seems 100x easier in unreal than unity

[fathom aspen]

Still could be same PC class though

[fathom aspen]

Well that was been said in the attached picture, and then I said it again :/

I don't think you'll get it tho

[low helm]

Exactly which code is breaking

post a pic

[thin stratus]

Yes, unless a throwaway prototype. And chances are high that I do it even there

[plush crow]

Hi guys, is there a way for a joining player to load a Certain map first like customization map before joining the actual Game map?
something like: Main_Menu -> Customization -> Gameplay map

[pallid mesa]

yes... you could do that

[real ridge]

Guys do you have idea why I cant read value in my game mode from player state? I am printing empty team despite I am having it in player state because I am also printing it there any ideas?

maybe is cast failing?

no its not I just tried print there string

[thin stratus]

Is this on the first spawn?

[real ridge]

wdym first spawn

[thin stratus]

Well you posted ChoosePlayerStart

Which is used in the GameMode to find a Start Location for a player

[real ridge]

lol just tried add another player after first spawned and for him its working

so prolly yes first player is wrong

I have numbered spawns 1- 5 for red team and 6 -10 for blue if game mode check from player state player is blue he pick random number from 6 to 10

but when I package game every joined player is in red team however it doesnt get value from player state idk why

[thin stratus]

Well ChoosePlayerStart is called very early for initializing the players spawn. You'd need to ensure that your Team is already set at that point

Where do you set the team value?

[real ridge]

In lobby I login in game Kamil / Kamil then I am in menu I click find game it will throw me in lobby maked from websockets there randomly will pick me team it will store in game instance, from game instance it goes to player state after joining server because player state gets erased after joining server and then from player state I am getting it for choose player start

bit complicated?

its clear XD ?

[grand kestrel]

Looking for some insight on net prediction for Stamina. I've moved it to CMC now. My game doesn't care about what your stamina is, it will let you consume your 1 remaining stamina point for a 50 stamina ability, what it does care about is that when you use up all your stamina you enter a "drained" state, and then after the stamina fully regens you recover from the drained state.

So do I sync the stamina float, or do I sync the drained bool, or both?

[real ridge]

you can see on this video
https://youtu.be/ceRDV5Ri8S8

its spawning me near red base despite I am blue team

oh I need upload it on youtube

[thin stratus]

The float is only synced on corrections

You still need the float in the saved moves for combining moves

For the boolean you can also sync that on corrections

[real ridge]

is video working guys ? 😄

i cant load it

[grand kestrel]

It works

[thin stratus]

The boolean probably needs to be in the saved moves and actually be restored on replaying, not sure

[thin stratus]

It works on YouTube itself

[real ridge]

it should be set before spawn idk whats wrong

[real ridge]

ah okay

[thin stratus]

You are setting them in the lobby?

Are you moving the value over to the new playerstate in CopyProperties?

[grand kestrel]

Was thinking I might need to actually send it with ClientAdjustPosition

[thin stratus]

Yeah you do

[grand kestrel]

If it gets out of sync at all it's pretty catastrophic until they realign

[thin stratus]

Just make sure you don't actually replicate those values

They should be non replicated vars

And test your stuff on more than 60 fps on the client

[real ridge]

in lobby you can see I am on right side that means I am blue team It will store my team in MyGameInstance, then I click play and it will join me session, after that I have on event begin play in my player state loading my team and nick for player from MyGameInstance that you can see as player name above me.

Then when its finally in playerstate I am taking this value on choose player start from player state to spawn it.

[thin stratus]

To test combined moves

[real ridge]

oh shit I just realized player state is created/loaded after spawning isnt it ?

thats why its empty...

F Me

I am right?

[thin stratus]

Well no

But

Your setup uses the GameInstance

So you have to first ask the client

[real ridge]

but in game mode I cant cast to game instance

[thin stratus]

That takes way longer than ChoosePlayerStart

Yeah of course not

You can't use ChoosePlayerStart then

[real ridge]

so delay makes problem

[thin stratus]

You need to do that logic when the team is being set

So when the client calls back with a server rpc

[real ridge]

I cant bro because my lobby is offline and session online

I am telling my lobby is made with websockets

I have teams and nicks in own database

only way how to store and pass it is game instance

it persist after join

[thin stratus]

I never said anything else

I only said you need to move the logic you have in choose playerstart, as well as your spawning logic, to when the client tells the server the team

Otherwise this will never be timed correctly

[real ridge]

ahhhh

and if I will add 1 sec delay ?

on choosing start

[thin stratus]

You can't

1. It's a function, no delays allowed
2. This is a ping problem, if you have a lag it will break again

[real ridge]

and how you mean move ? exactly

[thin stratus]

Somewhere you are setting the team

[real ridge]

this is very first time team is being set for server

and name

[thin stratus]

After retrieving it from the client

[real ridge]

in player state

it s here

i am casting to instance and setting it for state

(there is custom event) because after respawn I was loosing name

[thin stratus]

The setPlayername rpc

That's where you set the team on the server

In that RPC you can notify the gamemode and then do your spawning logic and choose playerstart stuff

Eh

Wait

You need an RPC that tells the server the team

The Team in the GameInstance is not available to the server. You need to RPC it to the server the same way you send the name

And then in that RPC after setting the team you can do your spawning

Then it'll be timed correctly

[real ridge]

okay will try

thank you for tip ser

player state is both client/ server do I Need rpc or just multicast?

okay tried it

F same result

[grand kestrel]

@thin stratus do you know of any docs for sending the adjustment? It comes from ServerMoveHandleClientError, and I made a derived FClientAdjustment with the float/bool in it, but I'm wondering if I'm meant to handle it separately from what CMC does natively, or if I tack on my own functions/RPC/etc and handle it separately

I've done it before but don't remember where 😄
E: seems like I just route an RPC to/from the Character from SendClientAdjustment and ignore engine PendingAdjustment stuff

[real ridge]

I even treid state is loading before game mode and despite that I cant get there value watafak

i just tried load also name and nothing

[thin stratus]

Now a days you simply implement your own child of the correction struct

And tell CMC to use that

You don't need to perform additional rpcs for this

[grand kestrel]

Reallllyyyy, where do you tell it which one to use? That's actually amazing

[thin stratus]

Iirc you make a member property with your custom child

And then in the constructor you just call the method that expects a pointer to the steuct

Struct

I just can't recall the name atm

You also send those packed structs in Server Move by now instead of just the flags as it was before

[grand kestrel]

I've got it using my custom FNetworkPredictionData_Server_Character with it's custom FClientAdjustment, just trying to find where you tell it which adjustment to use

[thin stratus]

Na Not that one

Give me a few min then I give you some code

Get a coffee or so in the meantime

[grand kestrel]

ServerFillResponseData! ..I think?

Mm nope that's not it. I'll wait 😄

Coffee.. that's a brilliant idea

[twilit radish]

It’s also explained kind of on this page near the very bottom btw: https://docs.unrealengine.com/5.1/en-US/InteractiveExperiences/Networking/CharacterMovementComponent/

[grand kestrel]

That's definitely a start

[plush crow]

hi guys, any tips on how to make a client travel to a certain level after joining session? not really sure what I'm doing wrong here 😵‍💫

I have setup my create session to load the customization map, but when the host has transfered to the gameLevel, the clients when joining are being redirected to the gameLevel map instead of the Customization map.

here's a snip of my blueprints

create session:

join session:

[thin stratus]

Are you trying to have a Client be on a different Map than the Server while being connected?

[plush crow]

button to game_level:

[plush crow]

I was planning on putting them on a character customization map before joining the actual game map.

[thin stratus]

1. If a Client is actively connected (Session doesn't matter), they will and have to be on the same map as the Server. Minus the exception of Seamless ServerTravel where they are temporarily parked on a Transition Map.
2. If you use the "JoinSession" node, it will result in the Client connecting to the Server via Client Travel after resolving the Connection String of the Session they joined. That's all happening in the Join Session node. So after calling that you will be connect to the Server and point 1. will take effect

3. ServerTravel is only meant to move Server + Clients from Map A to Map B together. And only the Server should call this.

Also not sure what your Reliable Server RPC with "GM" in its name is supposed to be

Given you are probably not connected yet in the same frame, this is still your pre-game GameMode. Also RPCs on GameModes are redundant.

And if you Client Travel after Joining, you will be disconnected from the Server

In other words:

• Either you handle your Customization stuff before even Joining the Server
• Or you handle your Customization on the Gameplay Map after Joining the Server
• Or you handle Join Session yourself and you don't connect to the Server at the end of the JoinSessionCompleted call and do that later

Third option is probably the best for your flow (if that works) but requires C++

@grand kestrel Loads of info coming in:

Struct you should inherit from is called FCharacterMoveResponseDataContainer

You should override ServerFillResponseData and Serialize

And implement your own stuff there

Example:

struct FVRTCharacterMoveResponseDataContainer : FCharacterMoveResponseDataContainer
{
    typedef FCharacterMoveResponseDataContainer Super;

public:
    virtual void ServerFillResponseData(const UCharacterMovementComponent& CharacterMovement, const FClientAdjustment& PendingAdjustment) override;
    virtual bool Serialize(UCharacterMovementComponent& CharacterMovement, FArchive& Ar, UPackageMap* PackageMap) override;

    bool bIsDashing;
    float DashPower;
};

void FVRTCharacterMoveResponseDataContainer::ServerFillResponseData(const UCharacterMovementComponent& CharacterMovement, const FClientAdjustment& PendingAdjustment)
{
    Super::ServerFillResponseData(CharacterMovement, PendingAdjustment);

    const UVRTCharacterMovementComponent* VRTMoveComp = Cast<UVRTCharacterMovementComponent>(&CharacterMovement);
    const AVRTCharacter* VRTCharacter = Cast<AVRTCharacter>(VRTMoveComp->GetCharacterOwner());

    bIsDashing = VRTMoveComp->IsDashing();
    DashPower = VRTMoveComp->GetDashPower();
}

[real ridge]

I am lost every time when I am trying to get any variable from player state in game mode its empty.... what I am doing wrong meh

[thin stratus]

bool FVRTCharacterMoveResponseDataContainer::Serialize(UCharacterMovementComponent& CharacterMovement, FArchive& Ar, UPackageMap* PackageMap)
{
    if (!Super::Serialize(CharacterMovement, Ar, PackageMap))
    {
        return false;
    }

    if (IsCorrection())
    {
        Ar << bIsDashing;
        Ar << DashPower;
    }

    return !Ar.IsError();
}

You make a member variable of that struct FVRTCharacterMoveResponseDataContainer VRTMoveResponseDataContainer;

You call this in your Constructor SetMoveResponseDataContainer(VRTMoveResponseDataContainer);

You override

virtual void ClientHandleMoveResponse(const FCharacterMoveResponseDataContainer& MoveResponse) override; in the CMC

You cast the Response to your version const FVRTCharacterMoveResponseDataContainer& VRTMoveResponse = static_cast<const FVRTCharacterMoveResponseDataContainer&>(MoveResponse);

And then update your CMC from it

                if (VRTMoveResponse.bIsDashing != bIsDashing)
                {
                    if (VRTMoveResponse.bIsDashing)
                    {
                        StartDashing();
                    }
                    else
                    {
                        StopDashing();
                    }
                }
                
                DashPower = VRTMoveResponse.DashPower;

I had to more or less copy paste the parent version of ClientHandleMoveResponse

[plush crow]

Probably will try option 1 for now since its the best case for my scenario. Thanks a lot!

[thin stratus]

Because the parent function does some extra things and has some ifs and else that had no individua lfunctions

I call Super at the end of my override

And wrap the code into

if (MoveResponse.IsCorrection())
    {
        if (!MoveResponse.bRootMotionSourceCorrection && !MoveResponse.bRootMotionMontageCorrection)
        {

There is a tad more to it, the ClientHandleMoveResposne function is probably the most annoying one to share

I'm doing a lot of the stuff that Epic does before I actually correct the CMC state

            bool ValidMoveResponse = true;
            if (!HasValidData() || !IsActive())
            {
                ValidMoveResponse = false;
            }

// Make sure the base actor exists on this client.
            const bool bUnresolvedBase = VRTMoveResponse.bHasBase && (VRTMoveResponse.ClientAdjustment.NewBase == NULL);
            if (bUnresolvedBase)
            {
                if (VRTMoveResponse.ClientAdjustment.bBaseRelativePosition)
                {
                    ValidMoveResponse = false;
                }
            }

            // Make sure the SavedMove still exists
            const int32 MoveIndex = ClientData->GetSavedMoveIndex(VRTMoveResponse.ClientAdjustment.TimeStamp);
            if (MoveIndex == INDEX_NONE)
            {
                ValidMoveResponse = false;
            }

And then the code I posted first with the Start/StopDashing is wrapped in if (ValidMoveResponse)

That's more or less what you find in the parent functions

Now filling the data

let me check where that was

Ah actually I posted that already

That's the ServerFillResponseData part of the struct itself

That should be more or less it

The only other thing I do in all cases is to Override ClientUpdatePositionAfterServerUpdate

Because Epic does stuff like this:

const bool bRealPressedJump = CharacterOwner->bPressedJump;

Where they save the current state of the key press and then do all the SaveMoves and then restore it

I needed that too and there are no overridable functions for that (as usual)

So copy paste native it is

And then added this before looping the saves

    /// SaltyPandaCedric - Keep track of other Flags
    const bool bRealDash = bWantsToDash;
    const bool bRealBoost = bWantsToBoost;
    /// SaltyPandaCedric - Keep track of other Flags

And this at the bottom before returning

    /// SaltyPandaCedric - Keep track of other Flags
    bWantsToDash = bRealDash;
    bWantsToBoost = bRealBoost;
    /// SaltyPandaCedric - Keep track of other Flags

Also make sure that you store your float in the saved moves

And use CombineWith to restore it

void FSavedMove_VRTCharacter::SetInitialPosition(ACharacter* Character)
{
    Super::SetInitialPosition(Character);

    const UVRTCharacterMovementComponent* CharacterMovementComponent = Cast<UVRTCharacterMovementComponent>(Character->GetCharacterMovement());
    if (IsValid(CharacterMovementComponent))
    {
        bSavedWantsToDash = CharacterMovementComponent->WantsToDash();
        DashPower = CharacterMovementComponent->GetDashPower();
    }
}

void FSavedMove_VRTCharacter::CombineWith(const FSavedMove_Character* OldMove, ACharacter* InCharacter, APlayerController* PC, const FVector& OldStartLocation)
{
    Super::CombineWith(OldMove, InCharacter, PC, OldStartLocation);

    const FSavedMove_VRTCharacter* OldVRTMove = static_cast<const FSavedMove_VRTCharacter*>(OldMove);

    UVRTCharacterMovementComponent* CharacterMovementComponent = Cast<UVRTCharacterMovementComponent>(InCharacter->GetCharacterMovement());
    if (IsValid(CharacterMovementComponent))
    {
        CharacterMovementComponent->DashPower = OldVRTMove->DashPower;
    }
}

That's because on Client Side UE processes Move X and if it can Combine it with the next one, saves and merges it, and then calls again next frame and process Move X and Move X + 1 together, which means Move X gets processed twice. So the Combine With function has to restore the float value back to what it was before Move X was processed

Otherwise the Client will, when combining moves (more than 60 fps for example) drain the float too fast

AND that's it. Good luck

[grand kestrel]

Thanks so much for that, it saves me an incredible amount of time 😄

[twilit radish]

Network compendium 2.0 has just been released.

😂

[grand kestrel]

I'm actually not following with the parent function for ClientHandleMoveResponse, I don't see how it fits in

[thin stratus]

I will send you my consultation fee. - Mercy

[grand kestrel]

I suspect Epic might have changed it since, there's no .IsValidMoveResponse, but there is .IsGoodMove

[thin stratus]

So in theory you would override the inner functions

Could be, this is 5.1 though iirc

[grand kestrel]

Yeah I'm on 5.1 too, maybe I'm in the wrong place

[thin stratus]

Yeah so

You'd theoreitically override the bottom most one

But you'll notice that it has no access to the Move Response

Cuase some genius parsed it

So you are stuck with overriding this monstrum

And ensuring that you perform the same checks before applying your corrections

That's why my function is so big

[grand kestrel]

So the entire body here... I replace ClientAdjustPosition_Implementation( with?

[thin stratus]

No, you still call super at the end

Eh

Wait

Yeah I don't override ClientAdjustPosition_Implementation

I override ClientHandleMoveResponse

[grand kestrel]

Yup that's what I overrode

But it calls it at the end

[thin stratus]

https://gist.github.com/eXifreXi/90757f82bb1dda48a08f863b04ff4e1e

[grand kestrel]

Ahh I get it now (hard not to since its on a silver platter but...) 😄

[thin stratus]

You need access to the MoveResponse to get your stuff. But ClientAdjustment stuff doesn't have that as a param

So yo ugotta override the function before that which is client handle move response

But then you are stuck with adding back all those checks they do before applying the corrections

CMC needs some more cut apart functions to easier extend it

Not a single project I worked on got around copy pasting native code cause there was no proper override available

[grand kestrel]

I've always felt that way about CMC

[thin stratus]

The proper way imo would be to add all the specific checks into the else of the ClientHandleMoveResponse, before calling ClientAdjustPosition and its siblings

And then passing the Response Container into them

So you can just blindly override those and place your code there

But well

It is what it is

[grand kestrel]

Wondering if I'd do that for stamina + drained state, I think so?

I always did it for inputs

[thin stratus]

No

You have to carefully think about what parts have to be restored or not

When the Client processes the SavedMoves, it will basically replay everything it did after the corrected Move

So the Correction gives you a corrected value of e.g. 73 Stamina

Now your Client will replay 10 moves and land on e.g. 54 Stamina

That should be the correct value

If you restore Stamina after that you will be out of sync again

You only restore the "I want to Sprint" state, because if the last Move had that as "false" but the Client is currently pressing it, it would cause them to not sprint anymore and they have to press the key again

so only local input state is really something to save and restore around the saved moves

Not the values

[grand kestrel]

Ah yup that makes sense

Thanks so much for this

Its time to proceed to phase 2 ; test it, and then spend the next 3 days trying to find the one tiny thing causing the desync

[thin stratus]

Yeah the Debug Window of the NPP would be nice for the CMC

To see the State at each Timestamp, which are predicted and which were corrected

I'm not sure if one can add something like this to the existing CMC due to how many variables and functions one would need

Probably via some Child Class

[grand kestrel]

Haven't thought about how you'd go about it tbh, it would be a mission in of itself, next engine release it breaks 😄

[thin stratus]

You gotta keep in mind when what is calling. Something like "ChoosePlayerStart" for example probably calls directly after the Player joined. If you first have to ask the Client for a Value they have in their GameInstance, then that's too early. That also goes for events like PostLogin etc. As soon as you have to first ask the Client for their stuff, you will have to move all your initialization code to call after the Client send all that data.

Your best bet is to let the PlayerController, locally, call an ServerRPC on BeginPlay (with IsLocalPlayerController ) and sending all required data via that ONE RPC.

And then in that RPC you set all the Values and then start your spawning process.

I can't give you more than this info. It should theoretically be enough to do what you want. The rest is up to you.

[real ridge]

so make variables in player controller Name/team and rpc them on the begining

okay

then get those variables from player controller in game mode not from player state

right?

[grand kestrel]

Is this the right way to handle IsImportantMove and CanCombineWith for Stamina?

    if (!FMath::IsNearlyEqual(Stamina, SavedAckedMove->Stamina, StaminaImportantThreshold))
    {
        return true;
    }

I guess I just set the threshold to a value that works for whatever the max acceptable latency is

@thin stratusready for my extremely technical analysis? It isn't working right 😄 <- there it is
At the start, the server inits the Stamina to MaxStamina (20), client inits to 0 and ends up immediately drained, server never corrects stamina amount or drained state.
And, client consumes stamina ~0.5x the server's rate (server has correct rate)

[verbal tendon]

Depending on how much data that is/hassle to maintain, you can also send them as separate RPCs and have one RPC that signals the end of initial data transmission

[real ridge]

i am getting what u mean but print is saying player state is before choose player

[thin stratus]

You should not send the Stamina with the Move

So the Stamina should also not count into if something is an important move or not

[thin stratus]

That's for Server, the Server obviously has no ping time for asking itself for the values from the GameInstance

YOur problem should only exist for Clients

[grand kestrel]

Should I be checking it for CanCombine

[thin stratus]

No, you can keep the values in the PlayerState and GameInstance. PlayerController just manages the RPC.

[thin stratus]

No

[grand kestrel]

I accidentally pressed a key that put these white boxes above the chests (they have GAS related stuff that might be trying to debug), its causing a huge leak and my framerate rapidly drops, happen to know what I did? 😄

[thin stratus]

No clue

[grand kestrel]

Fun 😄

[real ridge]

another interesting thing is that in editor works everything perfect but when its packaged and build its not working

ugh

[grand kestrel]

Hmm client still runs down stamina at half the rate and the correction isn't happening

Ah should I be putting it in PrepMoveFor and SetMoveFor..

[real ridge]

I tried it like you said , i hope you meant it like this but value in game mode is still empty weird

even I set it like this

[thin stratus]

The stuff you theoretically need for a "Sprinting with Stamina" setup:

• SavedMove needs bSavedWantsToSprint and Stamina values

• SavedMove needs to set the CompressedFlags for bSavedWantsToMove

• SavedMove needs to save Stamina in SetInitialPosition to be able to fix Combined Moves

• SavedMove needs to set the CMCs Stamina back to the saved value in the OldMove in CombineWith

• When processing saved moves in ClientUpdatePositionAfterServerUpdate, you should save the real bWantsToSprint value and restore it at the end of the function

• You should override SavedMoves Clear to reset your bool and stamina float.

• You need a custom FCharacterMoveResponseDataContainer for corrections

• You need to have a member variable of the custom type and call SetMoveResponseDataContainer in the Constructor so it is used

• You should store the corrected Stamina value in this struct

• You set the value in ServerFillResponseData

• You fix the CMC value in ClientHandleMoveResponse

• You usually drain the Stamina in PerformMovement

• You need two functions for Start and two for Stop of your Sprint
  -- The first two are to set the bWantsToSprint boolean to true and false
  -- The second two are to actually set a bIsSprinting boolean to true and false that you use to actually increase movement speed, as well as in PerformMovement to drain Stamina

• You should call StopSprinting when Stamina is 0 in PerformMovement
  -- You usually also should set bWantsToSprint to false in StopSprinting, so the Client has to press the key again and can't just hold it, but that's design choice

• You need to override UpdateCharacterStateBeforeMovement to process StartSprinting and StopSprinting similar to how the parent class does it for crouching.

• You need to override UpdateFromCompressedFlags to set the bWantsToSpring bool from flags.

• You might want to override StopMovementImmediately to call StopSprinting

• You can have some convenience functions for "CanStartSprinting" "ShouldStopSprinting" similar to Crouching.

@grand kestrel

That's the most comprehensive I can explain it

[real ridge]

just adding this one result dont want spam too much sorry, i have print from controller even from player pawn both are blue but server still spawn me on red side

[thin stratus]

Why the Multicast?

And why the event that is called server?

[real ridge]

its in controller

[thin stratus]

Yeah and?

Why do you need a Multicast here

One ServerRPC is what I wrote

[real ridge]

doesnt rpc mean multicast + server call 😄

?

[thin stratus]

no

[real ridge]

bcs its executing on server uhm

[thin stratus]

RPC means Remote Procedure Call

That can be a Client, Server, OR Multicast

[thin stratus]

But it's not, it's a normal event

You are on the Client here

Also that is not correct

You can't just pull the reference from there

You have to get the PlayerState member variable of the PlayerController anew

The RPC moves between PCs

The top part is not even executed on the PC that executes the bottom part

[real ridge]

oh I am used to to his

this

so its totally wrong

?

[thin stratus]

Yes

[real ridge]

i need make new cast then?

i am doing it in multiple blueprints

[grand kestrel]

Thank you! I had it in tick instead of performmovement 🙂

[thin stratus]

BeginPlay -> IsLocalPlayerController -> GetGameInstance -> CastGameInstance -> ServerRPC -> Pass in data from GameInstance into ServerRPC

ServerRPC -> GetPlayerState -> CastPlayerState -> SetValues on PlayerState that the ServerRPC has as inputs

Additionaly in the ServerRPC -> GetGameMode -> CastGameMode -> call some event that now spawns the Player based on those values

[thin stratus]

Yeaaaah that's wrong haha

[grand kestrel]

...before it was setup properly it was the right place ;D

[real ridge]

okay I fixed it, but I dont want call event to spawn I still want use just choose player start it should be fine or?

uh my game mode still getting empty player state i dont understand

[thin stratus]

Additionaly in the ServerRPC -> GetGameMode -> CastGameMode -> call some event that now spawns the Player based on those values

[real ridge]

maybe getting that values in wrong way?

[thin stratus]

Buddy

I hate repeating myself for you every time

[real ridge]

but there already is event called choose player staert

[thin stratus]

You can't use Choose Player Start

[real ridge]

why I would make new 😄

why

[thin stratus]

Because it calls too early

If you do that shitty GameInstance solution cause you have to, then you can't use Choose Player Start

You have to do this manually

[real ridge]

ok then question if I will use own event cant I use find player start function inside?

[thin stratus]

You can

[real ridge]

i have tagged player starts by numbers

[thin stratus]

If it's Blueprint Callable

Otherwise write your own and call it slightly different

You also have to remove the Character/pawn from teh DefaultPawn class in your GameMode and spawn it by hand fwiw

[real ridge]

it is

[real ridge]

why

[thin stratus]

Cause the automatic stuff again calls too early

Your whole GameInstance ServerRPC stuff adds a random dalay to the setup that the GameMode doesn't know about

[real ridge]

should I add player controller of current player in custom event for spawning?

and use it as variable to possess?

then

or find player start will possess it automatically

[thin stratus]

Timeline from left to right

Top is Server, bottom is Client

Red is when your GameMode tries to spawn and calls ChoosePlayerStart

Green is when the Local PlayerController is replicated and calls BeginPlay

Blue is when your RPC arrives

As you can see, hopefully, there is a ping delay which you can't bridge with a delay.

[real ridge]

thats why second and other players had no problem

after first spawned

[thin stratus]

Respawning at least should be fine

But the initial spawn would not work

That's why you do the spawning after the RPC arrives

[real ridge]

is this good for sending game mode my controller?

so it will know

who is going to spawn

[thin stratus]

You are in the PlayerController or not

[real ridge]

yes

[thin stratus]

Just send "self"

[real ridge]

was not sure if I can use it

ok now question is this enough just tell find player start to spawn me without spawning by myslef + possesing it or its totally wrong

still didnt delete default pawn

[thin stratus]

No you have to actually call SpawnActor

And remove the default pawn

There is also the option to simply call "RestartPlayer" on the PlayerController

You can try that I guess

[real ridge]

I am already using it for dead

[thin stratus]

You can try that here too

[real ridge]

here

should be same yea?

[thin stratus]

As it will call the whole Find Player Start etc. logic again

Just make sure you somewhat filter the original call where they didn't have a team yet

e.g. return nothing if no team

(in Find/ChoosePlayerStart)

[real ridge]

what if I tried this?

it already has start spot

okay its not working its spawning nothing

[thin stratus]

Just calling restart player should be enough

[real ridge]

but it seems if i will let set default pawn as my player

its working