multiplayer

[oak pond]

oh well I didnt see anything there when I checked

[sinful tree]

Try splitting up the array like you did before and delay between. See if it improves it. If it does, then it's likely it's just too much data to be sending so rapidly.

If you're calling the function that generates the bones array on tick or something, put in some flipflops on tick before calling the function, see if that helps too. (Tho expect some chopiness until you implement some interpolation)

[pine sage]

Hi !

I've been playing with GAS etc, and I would like to be able to get the replicated Camera manager on the server ...

I've tested Lyra, for instance, and they are able to do it

but no dice on my end ...

Do you have any leads ?

thanks

this works on the server

Well, finally found it

Use Client Side updates

[spark pelican]

I have a replicated actor with a replicated subobject. When the client goes out and back into net cull range the actor gets created on the client again. This makes sense but because the subobject is replicated it gives a reference to the server made one, however on the client now the Outer for the subobject is invalid because it replaced the old. Is there a work around for this or are outers not ment to be used in a multiplayer setting?

[sinful tree]

Widgets do not replicate.

Local computer only.

You're referencing nothing as that reference doesn't exist on the client.

Even if you mark a widget reference variable as replicated, the widget itself does not get replicated to anyone, so only the local computer can reference it.

Repnotify of what? There'd be no repnotify of a widget being replicated as it can't replicate.

[thin stratus]

We need a bit more info tbh

And you can't answer the local variable question easily cause it depends on the context

And the widget is what/where?

You can simply do IsLocallyControlled in the OnRep if it is in the character. And then access the PlayerController and from it the widget

Then only the owner of that character would modify the widget

I wouldn't have such a boolean in the character though

I would have it in the GameState. And in the OnRep I would just get PlayerController 0 and then do the widget stuff.

That ensures everyone does it with their own local version of the widget

GameStarted

That's bad code

If you need the widget in the character, use OnControlledChanged in the Character, limit it to IsLocallyControlled and access the widget there

GetAllActorsOfClass is most of the time not needed

When the pawn/character is un-/possessed and the Controller pointer changes

Should be somewhere in the list of overridable functions

[twin sable]

I'm making a co op game. if my player starts a game without an internet connection and then regains an internet connection. Can they then invite online friends to their session. Can I change the session from lan/offline to online seamlessly?

[serene hearth]

Yeah you can use Online Beacons

[torpid nymph]

did you find a solution for this crash? we're also getting this assertion error

[thin stratus]

No, current suggestion I made is to not use WorldPartition if not needed

[torpid nymph]

do you know if there's a bug report ticket I can follow?

[fierce fiber]

If anyone is experienced with the UE5 FPS Game Starter kit I would appreciate a helping hand, Ive made a class selection widget, and the entire blueprint string works when you select sniper but the 2 highlighted nodes, the weapon doesn't actually get given to the player and Im confused as to why

[thin stratus]

Nope, haven't found anything

[tacit pine]

Where in the engine is the code responsible for replication described? Where is it better to start studying rep inside?

[quiet fjord]

I have a bug with my matchmaking system using blueprint gamelift can someone help me

[daring gorge]

is this the way id wanna replicate a montage or would i use switch has auth to run a multicast if its server and a server event if its client?

since doing this makes the notify get called on server twice?

[deft viper]

So I'm brand new to ue5 and I'm wondering when I follow a tutorial on yt on how to make a mutiplayer system it only works on my local computer when I open 2 instances, but when I send it over to someone else they can't connect? I know I'm missing something but no yt vids explain it very well. BTW I'm trying to make a p2p mutiplayer system with lobby list you can join

[livid holly]

is there a way to keep a map loaded while doing Client Travel, and only unload the map once the new map is loaded? (like a no-seamless travel). When I try ClientTravel it immediately unloads the map that the client was in

[quiet fjord]

guys someone set up a matchmaking system with gamelift in blueprint in unreal engine esque it turns out that I'm having problems with servertravel for my players to travel to the game level

[visual glen]

anyone encounter issues using PlayerController->ClientTravel(Address, ETravelType::TRAVEL_Absolute); in UE 5.1? (client travel doesn't seem to work even though the address and connection is valid)

[quiet fjord]

I'm still using 4.26

What I don't know is whether to use seamless travel

I'm using gamelift blueprint

The problem with this is that when users find each other through matchmaking, sometimes they do not travel synchronized and stay on the server map without traveling.

[ivory bear]

After repeated failures with a "true" first person char for a shooter, I went back to the fps with arms and a full body mesh on the same char that others see (replicated, of course) I have visibility working (thanks to some here) and weapon angle working.
How should aiming and projectiles be done? Right now I get camera to center screen, then trace line from gun muzzle to previous screen. This gives some odd looking angles from gun muzzle outward. Is this the "best practice" way to do this?

[woven basin]

Has anyone seen an issue where the USOCK_Closed is triggered too quickly? So I am doing some ApproveLogin() stuff, and reject players for invalid passwords etc.

I can replicate on my machines that 80% of the time the rejected message is passed to the end user. But sometimes the end user just gets a "your connection was lost" generic error, because the Engine does a tick and sees USOCK_Closed - and then just kicks the user immediately.

[visual glen]

rebumping

[whole pine]

if items are being attached to clients when they use them from their inventory, should i be handling that logic in player state

and how do i make clients see each other when travelling to new maps? is that set up after you have a dedicated server

[latent heart]

What do you mean "see each other when traveling" ? While the map is loading?

[whole pine]

i mean after

[latent heart]

So you change map and then everyone gets disconnected?

[whole pine]

they go to their own copies of the level instead of the same one

[graceful viper]

I don't really understand server checks, let's say I'm making a cod game where the player is buying the weapon. I think a good server check would be to check if the player buying even has the points, but what if a "hacker" is 100 meters away trying to grab the weapon? Would I simply check the distance to? Would I check if they are facing the weapon?

[latent heart]

You should check everything.

Can they afford it? Are they in the right place? Do they have space?

Etc.

[sinful tree]

Native Unreal if you have a client move to a new level, they disconnect from the server and open into the new map locally.

[latent heart]

Obviously if this is for something you do every frame you can't check evreything every time.

[whole pine]

i noticed

[sinful tree]

That's exactly what you would do - verify that the player can do the action you want them to do. I wouldn't go to the extreme of making sure they're facing it, but at least within range of it to be able to do it.

It really depends on the game and what you want to prevent players from doing.

[graceful viper]

Okay, thanks for the heads up on this, was just crossing my mind for a bit

[sinful tree]

I guess I should've really replied to this - so the issue being is that since clients disconnect from the server when they open a level, they are no longer in communication with eachother, and the server can't move individual clients to a new level it can only move itself and either disconnect or bring along its connected clients to the new level. This means that Unreal's networking doesn't facilitate having multiple levels running on a server that clients could be in while still remaining connected to the server. There are plugins out there that can put players into different non-replicated worlds with individual levels while still remaining connected to the server, but again, they're not replicated so others cannot join in that world and the server wouldn't be in control of that individual's world. To facilitate having multiple worlds on a server with replication would require massive engine source changes.

[whole pine]

im using playfab, i think i have to figure out the player sessions or somethin

[visual glen]

anyone possibly know why I am able to get a successful connection to a host, but ClientTravel is not working using this in UE5.1

APlayerController* PlayerController = GetGameInstance()->GetFirstLocalPlayerController(); if (PlayerController) { PlayerController->ClientTravel(Address, ETravelType::TRAVEL_Absolute); }

[sinful tree]

I think what you're thinking Playfab does is provide a layer on top of Unreal's networking that makes it easy to keep communications open between clients and maintain server authority, but it doesn't, it only provides you with external tools that can facilitate communication between servers, and a means for hosting servers for you. You'd have to either make changes to the engine to facilitate multiple worlds and having them replicated or you will need to run multiple game servers if you want players to be in different levels but still have the server maintain authority, which means you're effectively building out a sharded MMO.

If you have clients running their own sessions (thereby, they become listen servers) and somehow maintain communications between them through PlayFab's networking, you can't securely use Playfab for those now client hosted servers as they would need to have read/write access to databases and leaderboards which means that someone malicious can easily spoof information and completely destroy your database or leaderboard.

[whole pine]

what about match id's

[pearl bear]

Hello, I have a REST online service API that I wrote. For example, I have an endpoint about whether my service is up or not. I check this from within the game and continue the process according to the situation. How should I write such a code in this case? The point that confuses me is that the method call here is asynchronous. For example I can make the request and then set a bool variable true in the callback and check the value of the variable every second?

[sinful tree]

Regardless of what types of IDs playfab can provide, it won't be providing you with a means of having multiple levels running securely on a single game server, nor facilitating clients to securely host their own levels.

[sinful tree]

Sounds good to me, maybe add a timeout.

[pearl bear]

After 10 seconds of try (that means 5 or 10 try) I can decide failed or sucess

in success case I can set bool false for next request

[sterile aurora]

I have been investigating my override of GameMode::InitNewPlayer and it does not seem to be getting called. The game mode class where I override it is the parent of two child game mode classes that are strictly blueprint classes.

It does appear though when I test connecting with a client that they are connecting to the server.

Is it possible the override of init new player is not being called because my default game mode is the blueprint class with no c++ and that is not calling the parent override?

[thin stratus]

Not really

Are you mixing GameMode and GameState with the Base version by chance?

E.g GameMode and GameStateBase or GameModeBase and GameState

Cause that's not supported and might cause random side effects

[sterile aurora]

it is defined as
UCLASS(minimalapi, Blueprintable)
class AMultiplayer_GM : public AGameModeBase

[thin stratus]

Try inheriting from the non Base versions (:

[sterile aurora]

thank you I will give that a shot 🙂

it compiled locally switching to inherit from AGameMode instead of AGameModeBase, I don't have gamelift local working yet so I will be deploying a new fleet and will know in about 30 mins if the servers start using that initnewplayer function.

[whole pine]

how do i disable collision between client pawns. i tried using the details panel but wont work

i need them to spawn directly ontop of eachother and they just launch all around after colliding

[oak pond]

what could even be causing this? as you can see it works fine on the players end, and replicates fine but then just snaps? https://gyazo.com/ea500b53aeb1188263cded416d915ad2

[oak pond]

its specifically as soon as it starts going upwards, I really dont get it, theres nothing that should be causing this and its fine looking fully down

https://gyazo.com/fe44424972cc5ac43abd17995cef47c7

[graceful flame]

Could set the default collision on the capsule to ignore the pawn channel but does it have to be only on the client? If so the server is going to issue corrections and cause issues.

[whole pine]

server

[graceful flame]

Server what?

If you want pawns to never collide with one another then just set that as the default on the capsule collider. Ignore pawn channel using custom collision.

[oak pond]

do I just click around randomly until something happens to fix my problem as usual

[whole pine]

tried but didnt work

[graceful flame]

That or breakpoints and carefully step through the nodes looking closely at the value of each variable output to see if it’s what you’d expect it to be.

[graceful flame]

Are there other components outside of the capsule which could be colliding? Showing a screenshot would help too.

[whole pine]

ya on sec

one

ive got a shadow underneath the player but i added that after the fact

[graceful flame]

Okay

[graceful flame]

And the thing he’s standing on does that block pawn?

[whole pine]

no

[graceful flame]

Is the other character the same class as this one?

[whole pine]

yea

[graceful flame]

And the capsule is the root component?

[whole pine]

yea

[graceful flame]

Are you changing the collision during runtime anywhere?

[whole pine]

im not

[graceful flame]

Well then it should be working you’ve missed something somewhere

Could it be the skeletal mesh’s collision perhaps?

With other pawns

[whole pine]

i set that to ignore collision too and it didnt work

ive had the issue for a long time and no one else know whats goin on either

[graceful flame]

Start the game then pause it and inspect the character does it have the correct collision per component? If not you’re setting it somewhere.

There’s also an option for the spawning node to ignore collisions or move if necessary.

[whole pine]

its set to ignore collision too

im not sure what you mean by pause and inspect

im pretty new

[graceful flame]

When the game is running you can alt tab if full screen or just minimize and pause the simulation (play button becomes pause) shift + F1 to escape the mouse from game.

Then once it’s paused you can click on the other character or just find it in yellow on the world outline panel to inspect it.

[whole pine]

noticed collision is greyed out and says this for the player start

and pawn isnt ignored in these settings

[graceful flame]

Wait that’s the player start not the character

[visual glen]

hi it's me, the APlayerController::ClientTravel guy

[whole pine]

do you think that could be where the issue is? should i try spawning instead of using player start?

[graceful flame]

The problem is on the character’s collision. The player start is just a location that has a capsule using default size so that characters don’t spawn inside of a wall or something.

[whole pine]

ya idk where i shud look for the issue then

[visual glen]

So I'm having troubles with ClientTravel(), the connection is valid but the joining user doesn't travel. I've pinpointed it down to it being specific to the ClientTravel function with my debug messages. Any help would be appreciated tomorrow will be day 3 of me debugging this

    if (OnlineSessionInterface->GetResolvedConnectString(NAME_GameSession, Address))
    {
        Defrog::Print(FString::Printf(TEXT("Connect string: %s"), *Address), FColor::Yellow);//This is reached
    }
    if (APlayerController* PlayerController = GetGameInstance()->GetFirstLocalPlayerController())
    {

            PlayerController->ClientTravel(Address, ETravelType::TRAVEL_Absolute);
            Defrog::Print(TEXT("PLAYERCONTROLLER IS VALID"));//This is reached
        

    }```

[fossil spoke]

@visual glen Is there a reason you dont want to just use UGameplayStatics::OpenLevel?

What does the Logs tell you?

What does the Address look like?

[visual glen]

I need to connect to the IP address and didn't think u can do that with UGameplayStatics::OpenLevel

[fossil spoke]

You can

It auto resolves it for you

[visual glen]

I will try that out and look into the logs and address (I haven't used logs yet for debugging tbh)

[fossil spoke]

Always check your logs man.

Thats literally what they are for

Debugging

To help understand what your program was doing

[visual glen]

needed to hear this tbh ty

[nocturne quail]

can we use UObject if we want to create inventory items in C++, which is only data and will not exist in the level ?

[fossil spoke]

Yep

Keep in mind you have to do extra work to have them replicated, if thats something you might need.

[nocturne quail]

I already replicated the base item for inventory which is only data.
now I want to know if I want to create that item in C++ , I should use data tables with it or how?

they need to be filled I mean

at the same point, why I should'nt use UStructs , oh they are not supported for single property replication , right?

[nocturne quail]

if item is replicated, it should be spawn by server, it will be available for the world.

if(authority)
{
 SpawnActorDeferred....
.
.
finish...
}

[fossil spoke]

Deferring spawn is usually just to enable to you init the Actor before it runs its construction. You should always finish spawning it, why would you be wrapping it in an HasAuthority?

Seems rather pointless to do that since the Server has authority and its the only one spawning the Actor so it will always run anyway?

This also sounds like your issue is elsewhere

Perhaps you forgot to call Super:: somewhere?

[pliant moss]

is it redundant to first call a run on server funtion that then calls a multicast? can i just call the multicast directly?

[sinful tree]

Multicasts can only be called by the server. In this instance, you probably do not want to spawn the actor on through the multicast and instead spawn a replicated actor on the server.

[pliant moss]

But if i for whatever reason want to use a multicast i would need to do it the way its setup now?

[small grail]

It depends on you called in on server or client side. You probably need to make it clear first. Like which event/function would be called only on server, and which of them are called only on clients.

[pliant moss]

but if the call is made from the client i need to call the multicast from the server. in other words. chain the functions like the screenshot?

[small grail]

If in this case, yes. It is exactly as you did.

[pliant moss]

Great thanks. im just prototpying now. so il probably change it to be replicated actor instead soon. I just wanted to make sure i that i understand the multicast correctly

[kindred widget]

Also on a side note to this. Why multicast a building spawn? Shouldn't you just have a replicated building actor that is created on the server?

[small grail]

Probably he said he's going to refactor this later as he mentioned?

[kindred widget]

I was more wondering if there was a specific reason for it. Because just spawning the replicated actor on the server is much easier than a multicast with a lot less bugs.

For starters. If a new player joins, no previously spawned buildings will show.

[small grail]

Yeah, that's the problem.

[clear island]

when using the Push model, is NetUpdateFrequency taken into account when I do MARK_PROPERTY_DIRTY_FROM_NAME ?

my understanding is that the traditional replication model will only replicate the change on its next "cycle" when its checking properties for changes so it may take a while if NetUpdateFrequency is low, but using the push model, when I mark a property dirty, that is instantly replicated right? kinda of like a ForceNetUpdate() but for properties only

[sage light]

Does any client have access to change replicated properties? or does it have to be the owner of the actor?
https://docs.unrealengine.com/5.2/en-US/property-replication-in-unreal-engine/

[ivory bear]

For an FPS multiplayer, with a character that has FP arms mesh and full mesh for other players to see, you shoot bullets out of the FP gun, how do you handle the bullets from the full mesh's gun that others see. Obvisouly we want the FP guns aim to be what hits others, but not sure how to show (laser bolts for example) from the full mesh others see?

[low phoenix]

Let me try again: So what's the current status of IRIS?? There is no mention of it in the 5.3 roadmap. I didn't find anything in the forum either. I was also wondering, if it has some client prediction stuff. The situation seems a bit messy regarding this currently in UE, at least it is not clear to me what the current systems can or can't do and what future stuff is in development, if there is anything in development at all.

[pliant moss]

Yeah its just temporay. i needed to call some additional functions on spawn. so it was just a quick "hack" to execute them on all clients while i work on the spawning system

[oak pond]

so anyone have any ideas about this? I dont even know what causes this in the first place so it may even be an animation problem for all I know, but its only happening on the other end https://gyazo.com/fe44424972cc5ac43abd17995cef47c7

[graceful flame]

Under active development. You can see what code there is on ue5-main branch on GitHub but last time I looked it was just an empty plugin. So in other words it hadn’t even left the original author’s local dev environment yet. But that was a few months ago.

[graceful flame]

Technically yes a client can change the value of a replicated variable BUT it will be corrected by the server once the next NetUpdate occurs which is 100 times per second by default. I think this can be used for client side prediction if there’s also an RPC that changes the same variable to the same value but the RPC might actually do that change locally anyways by itself. Most of the time it’s the server who sets the value of a replicated variable.

If a client changes the replicated variable it only changes for them locally and other connected clients won’t receive the change.

[oak pond]

one of those super specific problems isnt it

just kinda hoped someone had seen something like this before

maybe itll be fixed in a few more days of random clicking

[graceful flame]

Might help if you explained the issue in more detail again and showed blueprints. People here probably don’t remember the specifics as well as you know them.

[oak pond]

I did reply to where I originally sent it all

but Im not sure any of it will help

because I can take it all apart and input values manually and it still breaks the same way it makes no sense. nothing is changing it

[graceful flame]

I just saw a gif that didn’t have any context or meaning to me. Sorry

I suppose you can rule out animation vs replication issue by testing in standalone vs as listen host.

It looks like there’s no replication at all in that last gif you showed. Also which one is client and which is server? Left or right? Maybe make them different colours just for debugging?

[oak pond]

yes its replying and you click the reply and it takes you to where I sent other stuff

but again I dont know if it even IS a replication bug. everything is clearly replicating fine but it decides to do this. Ive looked everywhere and nothing could be causing this because it does it when I take pretty much everything out

[graceful flame]

When what does what? What is “it”? What did you take out?

Please describe the issue in detail and provide screenshots of blueprints. Because from looking at the gif I don’t understand what the problem is. Is it the ghost wireframe white mesh floating above them? Is it because one character rotates at the start but the other is already rotated? Is it because the arms are moving on one but not the other?

[low phoenix]

ok, but since it is not mentioned in the 5.3 roadmap there are no big improvements being worked on that will release any time soon or can this appear also later on the roadmap?

[graceful flame]

¯_(ツ)_/¯

[oak pond]

oh god

I showed everything in the original post it felt stupid to post it all again so I replied to it which lets you click that which takes you right to those messages. theres a gif there that shows both players screens

[oak pond]

you know, EVERYTHING. as in everything else extra that was in the script. literally just sends a rotation value and sets that on the other player. yet somehow it has a problem

so sure Ill send it again but theres no point because it still does it when I remove all of that anyway https://gyazo.com/ea500b53aeb1188263cded416d915ad2

[graceful flame]

I see that it’s working but is the problem the arms have a slight delay? What if you increase the net update frequency at the start of arm movement then decrease after to keep the network optimized?

[oak pond]

cant you see the snapping

[visual glen]

Hey hope you don't mind me asking but did you find a solution to this?

[graceful flame]

Does it still snap like that if you dynamically increase and decrease NetUpdateFrequency?

[strange geode]

not exactly . it started working again when i stopped launching as game and instead played as a standalone. standalone is a more accurate simulation apparently

[oak pond]

I dont know how you mean

[visual glen]

hmmm noted, will try that out thanks for the response!

[graceful flame]

Well you can start by increasing the actors NetUpdateFrequency so replicated properties are made to replicate faster. Also not sure if it’s ticking every frame or not.
If that solves the snapping then it’s probably a good idea to reduce that value. But I just remembered there’s a built in thing called adaptive net frequency (it’s deactivated by default) you can read about it here: https://docs.unrealengine.com/5.2/en-US/property-replication-in-unreal-engine/

[oak pond]

I dont see how this would help, it very consistently has an offset when the player aims up at all

[dark parcel]

New to multiplayer but as far as I experienced, replication cannot happend that quickly. You will probably have to use interpolation for the Aim offset, at least that's how I see others doing it

[oak pond]

but the aiming works fine

it just suddenly adds 90 degrees or something when looking upwards

[dark parcel]

works fine in your own machine I believed?

[oak pond]

nah both its completely smooth

or do you mean itll be different when testing across to other pcs

[dark parcel]

I mean it only snap on the left screen, not the right screen?

[oak pond]

yeah

[dark parcel]

Yeah , so if you are playing in your own machine, you are fine because you see everything real time

while the other machine that is fed with the rotation cannot keep up (maybe)

[oak pond]

the actual aiming itself is perfectly in time

[dark parcel]

Have you tried to print the value

of what ever drives that rotation

If you use Aim Offset, there is a common problem people experienced

[oak pond]

nah it just rotates the bones

[dark parcel]

Mainly involving the offset, goes from left to right, or up to down instead going to the closest number

Yeah nvm you are not using aim offset

So I still think it's snapping because you are not interpolating

[oak pond]

but its completely fine looking from centre to downwards

[dark parcel]

Hmm I see they are rotated differently as well

[oak pond]

yeah thats the whole problem

[dark parcel]

good luck

[oak pond]

https://gyazo.com/c1ab1ed4a73a629d99726147da05c1e5

[dark parcel]

yea looks like at certain treshold it just went crazy

I know FRotator get compressed for replication in Character Movement Component and it does funny stuff which require us to Map the value. Not sure outside of CMC tho

[graceful flame]

It could be because of the rounding. I know that’s something which can be changed to be more precise at the cost of more data being sent over the network.

[oak pond]

seems to be gimbal lock? which is what I assumed originally but I dont see how it could be since I pass the whole rotator through https://gyazo.com/97f0b71dbaa5641cc24bb3b8969ef4ad

[dark parcel]

Ah I get the problem I think?

actually nvm, seems like server and client gives the same value?

Anyway your value went from 0 to 360

[oak pond]

yeah

pretty sure thats gimbal lock

because something cant rotate in a circle without having to flip one of the axis

[dark parcel]

Earlier you have a screen where it is working fine

I assumed that's the host/server?

[oak pond]

yeah

[dark parcel]

Try to print the value on server side

[oak pond]

Im thinking somewhere it must remove the other two axis when it sends them

[dark parcel]

I think you just need to remap the value on client side

Can you do the same with last video but on server side

[oak pond]

still same thing but I think the problem is that it isnt sending all 3 axis to the client https://gyazo.com/71e6e404e94006b752511e61435cc3ce

[ocean geyser]

dumb question. when marking a struct as dirty, i assume it marks every property in said struct as dirty for comparison? if one property replicates after being marked dirty does the struct go back to not being dirty or do the other properties individually stay dirty until they replicate?

[dark parcel]

looks worth checking it out, i don't assume things will be just fine when you are missing one axis

[visual glen]

Anyone happen to know why my logs show my level package URL as /Game/FTW/Maps/LobbyLevel even though its asset name as /Game/Maps/LobbyLevel?

[icy jetty]

This would be a good question for #packaging

[icy jetty]

Time for you to read Cedric’s network compendium in pinned.

[dusky yarrow]

this is unrelated to you issue but your game reminds me of plasma burst 2. is you game inspired by it by any chance?

[oak pond]

hahah yes lol

I was actually thinking of doing something like the saw maps since co op is naturally a lot better than pvp in multiplayer

[visual glen]

just wanted to update to you that after lastnight, I learned how to use logs and was able to diagnose my issue and it now works as expected. thanks a ton for the messages!

[dusky yarrow]

awesome! man i really loved PB2! shame that the sequels seems mostly dead now, i kinda wanted a continuation for it. and yeah definitely the death maps were a lot of fun.

wish you the best of luck man!

[oak pond]

thanks, the sequel is still being worked on actually, there’s occasional small updates about it, and funnily enough happy wheels 2 has been “in development” for about 10 years now because that’s also a solo dev too

[whole pine]

how do i make the game know im clicking on another client so i can pull their personal info like name etc

[icy jetty]

Afaik, you need to access their player state when clicked

[whole pine]

so their name and stuff should be within the player state?

[dark edge]

Click -> figure out what pawn you clicked -> get that pawns PlayerState -> cast to YourPlayerStateClass -> access the info

that's if it's replicated data in PlayerState

if you mean to request some data from the server it'd be like
Click -> figure out what pawn you clicked -> call run on server event passing over the pawn or whatever

[whole pine]

all pawns use the same blueprint

[dark edge]

thats fine, you still need to figure out which one you've clicked on

[icy jetty]

That is, which instance

[dark edge]

Click -> get pawn you clicked -> get its playerstate -> get the data

[whole pine]

how do i make it recognize which pawn i clicked though

[icy jetty]

There’s an onClicked event you can override

[dark edge]

Or you can do it yourself with a line trace or get hit result under cursor

Get as far as printing out the display name of the actor you click then get back to us

[icy jetty]

Goddamn default to super reacts lol

[whole pine]

question about the line tracing. if im using a topdown camera how do i plug that into the location input

[dark edge]

How far have you gone so far on the top-down aiming system?

Do you have a cursor you can move around?

[whole pine]

no aiming, just click to move around

[dark edge]

Do you have that already?

What do you have right now

[whole pine]

right click to rotate, left click to move the pawn

[dark edge]

Show your left click code

[icy jetty]

Why you do this to the poor IA? 🫣

[whole pine]

idk i copied a tutorial

[dark edge]

If you run Get Hit Result under Cursor you can tell WHAT ACTOR you hit

Do you want data on click or on hover?

[whole pine]

click

i have it so you open players inventory when you click on the pawn

so i should be adding code to there correct?

[dark edge]

So there's 2 ways to do it

you can use the built in OnClick events

OR

do it yourself

I'd maybe do it yourself since you have click to move too, that way it's consistent

[whole pine]

ya, speaking of that i have an issue where my pawn moves if i click on another pawn when i dont want it to

[dark edge]

well yeah you need to detect that case

why do you have timers?

[whole pine]

followed a tut

[dark edge]

don't

they all suck

[whole pine]

me2

[dark edge]

Is the timer for click and hold navigation like Diablo?

[whole pine]

let me check

[dark edge]

I bet it is

if you click and hold and move your mouse around does the dude follow it around?

[whole pine]

seems to be reversed from that, when i hold the click the player doesnt move til i release

not even interested in that feature

[dark edge]

yeah that's probably because of the stop movement node

delete the timer for now

Start by understanding what this does

Triggered fires when you click

As does started I think, and completed when you release

not 100% sure as I haven't used the enhanced input system yet

start with just using Triggered

Click:Triggered -> get hit result under cursor -> draw debug point -> print display name of hit actor

get that going

it should draw a point where you click and display the name of the thing you clicked

[whole pine]

isnt this left click logic just to help me prevent movement when i click on a pawn capsule

wouldnt i need to draw the debug point from the code where i open the inventory?

[dark edge]

Start from the basics

make sure you understand that you get 2 things when you click. The click location AND the thing you clicked

Then you can branch, only walk if you DON'T click on a pawn

[whole pine]

even if i have a on event clicked for the pawn capsule?

[dark edge]

I wouldn't mix and match tbh

[whole pine]

oh ok

[dark edge]

I'd do it all here

[whole pine]

one last thing, whats a good way to call if the pawn capsule was clicked so i can detect it

am i casting to my topdown character and then pulling the capsule and then something else before it plugs into a branch

[dark edge]

no

Get hit result under cursor

you don't want to get the local players pawn, you want to get whatever got clicked

[whole pine]

true

[dark edge]

Here's what your code will literally do:
Click -> get local player's pawn -> cast it to BP_TopDownCharacter -> branch

doesn't make any sense

[whole pine]

i know, iw as expecting to hook it up somehow with a boolean

[dark edge]

get hit result under cursor -> break the hit result -> cast HitActor to BP_TopDownCharacter -> now you know if you clicked a BP_TopDownCharacter or not

I'd do hit result by channel

[whole pine]

ok

[dark edge]

you don't need that branch right now

if cast succeeds, you clicked a dude

if it doesn't, you didn't

so right now if cast fails, walk to the location

[icy jetty]

😲

[dark edge]

My projects have looked like black voids with debug prints since 5.0 lol

[whole pine]

pawn doesnt move when i dont clikc on the player

[icy jetty]

😄

[dark edge]

doing some low level stuff

[dark edge]

show code

[whole pine]

its just last pic minus the branch

[dark edge]

do the walking when the cast FAILS

the cast is a question "IS this actor a BP_TopDownCharacter?"

[whole pine]

lol sorry i forgot that

[dark edge]

You want to hook NO up to walking, not yes

yes is for showing stuff

[whole pine]

right, works now

display name prints bp_topdowncharacter0

[dark edge]

Cool, you're on your way

[whole pine]

ive got a owning player inventory widget and other player inventory widget and this is the code to open the owning player widget

this is in the chracter BP

[dark edge]

So call OpenInventory on the succeed of the cast from get hit result under cursor

Click -> did you click a dude? -> yes -> open his inventory
-> no -> walk to the click location

[whole pine]

i cant use is locally controlled in the player controllerBP tho

i was using that to determine whether to open owning inventory or other inventory

[dark edge]

You can check if other actor = self.pawn

[whole pine]

how do i do that

[dark edge]

I just told you

equals

[whole pine]

oh

[dark edge]

self -> get possessed pawn or whatever -> equals OtherActor

that'll tell you if the OtherActor is the PlayerController's possessed pawn or not

[whole pine]

?

[dark edge]

Your code is in a PlayerController right?

your clicking code

[whole pine]

yea

[dark edge]

playercontroller knows its pawn

get self -> get pawn

[whole pine]

and plug that into where get player pawn is in?

[dark edge]

plug it into one of them, plug the hit actor from the hit result into the other

you're checking if the hit actor and the controller's possessed pawn are the same actor or not

which is what you care about

[whole pine]

isnt working

[dark edge]

You are checking if self and the hit actor's capsule component are the same thing

you want to check if self's possessed pawn and the hit actor are the same thing

[whole pine]

oh ok

[whole pine]

what specifically do you mean by self possessed pawn

owning pawn doesnt work and getting player pawn off self ref doesnt work

[dark edge]

drag off self, type pawn

this is a playercontroller right?

[whole pine]

yea

only shows player pawn and owning pawn

and neither work

[whole pine]

@dark edge

[whole pine]

nice it works

[whole pine]

now that i got that part sorted out, back to the original question. how do i make the other players inventory unique to them? ive got playfab hooked up so im able to retrieve player id's and stuff but im not sure how to make it visible to the owning player

you previously helped me get the hit actor character number but if i were to connect an id to another player that isnt owner where do i even start... you said player state?

so pull the player state from the hit result?

[graceful viper]

how do I call these functions in C++?

do I do it the manual way? if(Function_Validate) Function_Implementation;?

also, just to make sure, only Server RPCs require validation right? So if I call a Client RPC is doesn't need that validation function?

[dark edge]

it tells you right there

if you add withvalidation to the ufunction declaration, you then add a _Validate function like shown and return a true or false

[graceful viper]

so manually right?>

[dark edge]

no it'll automagically call it

you just make a
bool YourFunction_Validate()
and have it return a true or false

[graceful viper]

so do I just call foo() which UHT will generate and it will automatically call both validate and if validate is true implementation?

[dark edge]

yes

[graceful viper]

okay great thanks

[dark edge]

and if false it'll disconnect the caller

[dark edge]

from a pawn you can get their playerstate

but you need to decide if inventory goes on the pawn or playerstate, I'd lean towards the pawn

[whole pine]

whats the difference?

[dark edge]

Do you know what a pawn and playerstate are?

[whole pine]

i know pawn, idont exactly know playerstate. currently i retrieve the logged in user's playfab id and put it at the top of their inventory window

[dark edge]

you sure it's not automatically launching the server in the background and connecting?

I like to have 2 batch files to launch a dedicated server and a client so I can test from startup and not have the PIE complications

Client

 "C:\Program Files\Epic Games\UE_5.0\Engine\Binaries\Win64\UnrealEditor.exe" "%CD%\Islandgame.uproject" MainMap -game -nosteam

Server

 "C:\Program Files\Epic Games\UE_5.0\Engine\Binaries\Win64\UnrealEditor.exe" "%CD%\Islandgame.uproject" MainMap -server -log -nosteam

like that

you can certainly do it in PIE as well but this is closer to the real thing

[graceful viper]

I think the Third Person Character Template in C++ doesn't move by default? I set the the CMC IsReplicated to true but not sure what else I have to do

the Client can't walk around at all

[dark edge]

we have 1 map total

It should load whatever map you want it to load in to

maybe an empty one that fires up a session, who knows

none of it, that's on you

an entirely new process is spawned

same as if you ran that bat file 10 times

that's on you and/or your game manager like GameLift (i think idk) or whatever

definetly not trivial

[graceful viper]

In c++ is it not as simple as just setting replicate movement to true

Or did unreal do something different for the sample project, because right now the client can't even move and the server doesn't update it's position to the client

[dark edge]

I mean it's not really Unreal specific

Unreal stops at the process, it's up to you or some other product to handle spawning the processes and deploying virtual machines etc

if you have to ask, do not try to make this lol. You'll just end up with a $250k AWS bill

[graceful viper]

Hmm that's weird that the character isn't working

[dark edge]

you haven't shown any code so how would we help

show how your character moves

the code path from input to the server doing the move

[graceful viper]

Just the template code, third person template, was hoping someone here used it

[dark edge]

That should just work if you add movement input to the CMC

CMC handles it

[graceful viper]

Hmm

Was I supposed to call super on the GetLifetimeReplicatedProps

Because I overrid it

[dark edge]

yeah you probably want the rest of Character to replicate its properties

[graceful viper]

Ahh, that's probably it then

[whole pine]

if i have ignore pawn on my pawn and collision capsule why are my pawns colliding

[dark edge]

show the collision settings

[whole pine]

sec

[dark edge]

what all other components are in the actor?

capsule and mesh only?

[dark edge]

check PlayerShadow and PlayerRing as well

[whole pine]

worked, thanks

characters are still stepping up on something or theyre getting bumped up vertically a bit when they pass thru each other

[whole pine]

ive got no step up on everything though?

[dark edge]

Just make sure everything has no collisions except the things that you want collisions on

[whole pine]

i did.. im confused why this is happening

[dark edge]

idk what playershadow and playerring are but they sound like visuals only

[whole pine]

theyre set to no collision with ignore pawn checked

[dark edge]

print the hit component on event hit and see what comes up

[magic helm]

Anybody have any tips regarding debugging RepLayout->ReceiveProperties FAILED and Error: ReceiveProperties: Invalid property terminator handle? It's causing my player to disconnect and from what I can see regarding the implementation, its not doing anything other than spawning like 20 actors, and its over multiple frames so nothing happening super heavy CPU wise...

[worn steppe]

I created a project from the third person controller, and I added a first person camera to that blueprint. I now want to make it so the player model turns as the player looks around (so other players can see what everyones looking direction). Do I need to write my own networking code to make this work or does the default player controller support this as an option?

[whole pine]

i know for a fact its making the pawns step up onto something but everything is set to not step up on any of the components

could it be the swing arm and camera?

[dark edge]

idk print the event hit and see what it is

[whole pine]

idk how

@dark edge

[dark edge]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/AddEvent/Collision/EventHit/

[whole pine]

im pulling what from what output

[dark edge]

break the hit result and you'll get all sorts of info about the hit

you want to print the hit actor

[whole pine]

what am i getting out of the hit actor?

[dark edge]

drag it into a print string node

[whole pine]

doesnt print anything

[whole pine]

could it be because they are only stepping up onto something?

theyre feet lift up but thats it

[pseudo merlin]

Hi all, I'm having an issue where an actor becoming relevant the first time on client gets the proper replicated value from server, but getting destroyed and respawned from going unrelevant to relevant again results in just having the default property value

Is this typical? I'm doing some weird stuff with procedural generation and manually matching actor names so it might be on me.

[dark edge]

Does the capsule move?

That sounds like your animation IK

[whole pine]

it can move up if they are directly on each other but if theyre just passing thru each other it only lifts the feet

[dark edge]

Might just be your animation

[whole pine]

i disabled animation and it isnt doing it anymore but why would it be doing that specific animation if there is nothing to step up on?

[dark edge]

you are probably using IK which doesn't even use the collision but does line traces

[graceful viper]

are these functions only called on the server? only prints hello on client 1 so making sure

and would this be called on the server if I did BoxComponent->OnComponentBeginOverlap.AddDynamic(this,&ACoin::OnOverlap);?

[sinful tree]

If that variable is marked as replicated and is being set by the server, then the actor should end up with the replicated value.

[sinful tree]

No. They can happen on clients and server. You can usually use an "Is Server" node into a branch or a Has Authority node to determine whether it's happening on the server or a client.

[graceful viper]

so whys it only print hello on the server?

[sinful tree]

It's printing hello on client1.

It seems like you're probably destroying the actor or something as well somewhere? Is that part of the overlap?

[whole pine]

my code to show a chat bubble of what the owning player entered is everything but the highlighted yellow part. it is multicasted and then replicated but when someone enters chat it shows up for both clients. how do i make it so only the owning client has the chat bubble? at first it shows chat bubbles above both clients and then anything else that is entered into chat is above the opposite client that isnt the owner

[dark edge]

Is this like for WoW style chat bubbles?

[sinful tree]

You probably don't want to get all widgets of chat bubble. You just want the chat bubble of the player that sent the message.

[dark edge]

Are the chat bubbles on widget components in the world or are they widgets in the viewport?

[whole pine]

its a component attached to the pawn

[dark edge]

Then why are you getting anything?

or rather, getting all of class?

[whole pine]

ur right

[dark edge]

just get MyWidgetComponent -> get widget -> cast to YourChatWidgetClass -> call HeyIGotANewMessage

[whole pine]

alright ill give it a go

[dark edge]

Finally someone here actually has a good use case for multicast

I saw multicast and got triggered but this is a good use for it lol

[whole pine]

lol

[whole pine]

i forgot to mention it creates a chat bubble widget, then creates a chat result widget(what was entered into chat), and then it adds chat result into chat bubble widget as a child and i havent touched this in a while so im a bit confused on where to start with your suggestion

[graceful viper]

why does it only print hello on client 1 though?

[whole pine]

its like that because the original use of the chat result was to add it as a child into a global chat box

so i just took the result and threw it into a bubble

[sinful tree]

What is your Server_CollectCoin doing? If it's destroying the actor then that could be happening before the server's blueprint copy detects the overlap, but not before the client's version gets destroyed.

[ivory bear]

If my linetraces/projectiles replicated and can be seen by all players when "Play as Client" but only local players see their own stuff when "Play as Listen Server", what have I missed?

[graceful viper]

oh, you are correct, really great assumption tbh

thx for the help

[dark edge]

assuming your system works fine on the widget level, just add a chat result on that multicast. No loops or anything

[whole pine]

the chat result is attached to the multicast in the code though (in the circle)

and you mean this right? to get the chat bubble component on the pawn

[whole pine]

so i did this and now it shows the chat bubble on owning clients screen and on other clients screen it shows it on the wrong player, which it was doing before but this time its just over the wrong players head

[pseudo merlin]

are dormant actors replicared to new clients when they join?

[whole pine]

@dark edge

[stable grotto]

Is it normal having to restart dedicated server once a week due to it starting to lag?

[small grail]

I'm not sure from the view of a developer, but usually playing the online games, they often had server reboot at 4-6 am once or twice a week. I think it depends on the size of your game. If it has lots of active users, it is very possible you need to do that.

[sinful tree]

You need some better way of identifying who the message is from and determining the widget that should display it. Using "Get All Widgets of Class" doesn't return them in any sensible order that you can use.

[whole pine]

what you recommend i use

[sinful tree]

Whatever you can use to identify the player that sent the message.

[whole pine]

i havent figured out how to do that yet

[sinful tree]

No player ID value that you may be storing in say the playerstate that also gets sent in the message?

[whole pine]

havent been able to work on that cause i think i need to set up a dedicated server to get playfab users in the same instance

unless im wrong

which i usually am

meaning, i can log into 2 dif accounts but they wont be on the same level

[sinful tree]

Well, as it stands, if you don't know who the message is from in any meaningful way that you can cross reference with your players on the server, there's no way to know which widget should be getting displayed.

[whole pine]

true

is there a way to get a client number or something

like how the windows says client1 and client2

[sinful tree]

Technically there is, but that's still not really what you want to do as the client IDs that the game provides isn't maintained well or accurately across all instances. You're better off using the playerstate to identify a player.
A working example of what to do in normal Unreal networking style chat that also requires players be in range to receive it and display the chat bubble would be:

1. Characters have a widget component attached to them that holds their "Chat Bubble" widget.
2. Chat Bubble widget on construct can bind to an event dispatcher that is present on the owning player's pawn that can update and show the widget as needed.
3. At game time, a client inputs message and hits enter.
4. Input is sent to server via sending an RPC to server (probably through a social component on the playerstate or character)
5. Server multicasts the message on the social component that sent the message.
6. The multicast is received on clients on the social component of the character/playerstate that sent the message so then you just need to call the event dispatcher set up in step 2 and the chat bubble widget should then display.

This doesn't include displaying it all in a chat box, or handling messages from anywhere in the game mind you - there is net culling that'll happen so the multicast wouldn't be received by those who are outside of the culling distance.

[stable grotto]

for clients that won't receive it because of the net cull, storing clients on login and sending the message to each client is a good solution maybe

[sinful tree]

A better way would probably be to multicast in the gamestate and have a "Message Received" event dispatcher from there that widgets could bind to and include the playerstate that is sending the message so that when it is received, clients can look up the pawn to signal to it that it should show the chat bubble.

This would then also allow for a more "global" type message to go out so a chat box may receive it, but the chat bubble may not need to be displayed since the character isn't in cull distance anyway.

[hollow swallow]

Having a bit of trouble finding sessions. Just started a new project, boot 3 up as clients, then host creates then the others search. The host creates with "Open Level by object reference" and has ?Listen in the options. Is that correct?

[sinful tree]

That should be fine, yes. Did you do the other ini config bits?

[hollow swallow]

I havent no, maybe thats what ive missed

Dont suppose you have a link to the page that runs through it? I do remember seeing it months ago

Also can i test with the steam subsystem and overlay whilst in the engine? or would i need to compile each time

[sinful tree]

Sadly no with Steam - you need to have different computers to properly test it (wtih separate Steam IDs I believe)

Ok for null subsystem, you don't need to do any ini edits.

Lemme see if I can find the Steam one...

[hollow swallow]

Ah rogey, ill probably not use steam at all to start with then

i want to be able to test in the editor

then can swap it all over later once im happy with it

[sinful tree]

DefaultEngine.ini:
#multiplayer message

That's the one I put in and am just testing with advanced sessions plugin in editor using UE5.2. Seems to work fine.

[hollow swallow]

Thats how im currently trying to do it, although its not finding any sessions

have tried using 3 clients or 3 standalones

[sinful tree]

should be "?listen"

you have "listen?"

[hollow swallow]

yeah i tried it every way just to make sure haha

same result with ?listen

wait hold up

3 refreshes later and it showed up

[sinful tree]

I know it can take some time for sessions to pop up.

[hollow swallow]

just tested on 3rd client, only shows on the 3rd refresh

but its working atleast

[stable grotto]

any tips for prolonging the server uptime? would it be memory leak thats causing server to lag after a week of being online?

[icy jetty]

I think it’s good to restart them once a week anyways

[sinful tree]

Something something inaccuracies adding up over time.

[hollow swallow]

Doing a ready up button with some ready text above the players head in the lobby. On the character i have a rep notify bool for if theyre ready or not. I want to change the ready text to red / green above the player. But it is only changing for the owning client. How can i make it so all players can see the updated colour? i have set the widget component to replicate above their head

pretty much just want each player to be able to update every other players text

[sinful tree]

If the bool is on the character, then the OnRep should be firing on the character changing the boolean on all clients, which the OnRep should then be able to get a reference to the widget associated to that character.

[whole pine]

@sinful tree hey, i remember you were telling me a little about having multiple levels permanently loaded and it was called 'shard' something. do you know where i can read about that?

[hollow swallow]

Still having issues with my ready up. So i store a struct on my player controller with name, level and ready up (bool) that is set to replicated. When i press the ready button on the widget, it casts to the player controller and runs a server event to update the struct to change the ready bool. That then casts to the character and runs a client event that casts to the widget and runs an event to update the colour of the ready text.

What am i doing wrong here?

the ready text is a widget component set to replicate above the player

[sinful tree]

Creating a sharded server environment basically is just launching multiple copies of your game server in some fashion while having some additional means of communication to the client even when moving between the servers, and even communication inbetween the servers themselves. Basically custom networking/server systems and additional systems external to Unreal to manage the servers. I don't have any direct information about it that I could send you.

[whole pine]

ok thank you. is that the only method though? i thought i saw something about level streaming before

[sinful tree]

Player controllers only exist on the owning client and the server and are not replicated to any other clients so probably not the best place.

[hollow swallow]

Ahh thankyou. So i should keep it on the lobby game mode or player itself?

[sinful tree]

The trouble being is you're running a "Run On Client" event on the character - those only run on the owning client.

It'd be better to just use a variable to replicate the state.

[sinful tree]

Character or Playerstate, one of the two.

Correct

That way, others that join later will receive the updated variable value as well.

A Playerstate exists for each player controller on all clients, and yes, any variables marked for replication on the playerstate with no additional replication conditions will replicate out to all clients if set on the server.

Yes

[sinful tree]

Level streaming isn't really the same thing from what I understand. That's more like, you don't need to have a level that's very far away loaded until there's someone that's close, and level streaming can accomodate for that.

[whole pine]

ok ty

[latent heart]

Not just networking, though.

Rendering, physics, possibly cheat prevention, etc.

[sinful tree]

There's only just these few options.
A) Edit the engine and make your own custom networking for Unreal so it can facilitate multiple worlds that are replicated (which you'd probably have trouble keeping high player counts on)
B) Run multiple servers running different maps that can maintain communication between each other in some other way (ie. some external TCP/UDP server)
C) Skip Unreal's networking system entirely, having some other networking system in control that your clients connect to and then tell your clients what to load and where and display what, effectively coding your own game server from scratch.

One of these is a LOT simpler than the others. 😉

[whole pine]

lol alright, i think ill just do your suggestion then. sounds expensive, but im in no position to code the other options

i mean, im using playfab but there isnt alot of info for my requests

im still trying to just figure out how to allow players to join and leave a level without having to matchmake using it

[sinful tree]

You will likely need to do some kind of matchmaking to accomplish moving players between levels, matchmaking in this sense mostly being the game server itself finding the servers and determining which one to go to and telling your client to go to it.

[hollow swallow]

Okay got it working finally. Next issue. If someone joins in after someone has already readied up. it doesnt show that

have a repnotify on my ready bool, that then updates the player info and multicasts it so everyone knows its updated, then updates the text color based on that. I thought a rep notify will fire off if someone joins later on with the correct info?

if i dont have that set as a multicast it doesnt seem to work. But more worried about how to fix if someone joins in late i want them to see the correct status of the ready button

Do you know why its not showing correctly if someone joins late though?

[hollow swallow]

pretty much the players join the server, and it shows all 4 players, they press a ready up button and a text (widget) above each players head that says ready changes from red to green

[thin stratus]

Well

Multicast is wrong

The struct has to be marked as RepNotify and the code from the Multicast has to be in the OnRep function

State should always be RepNotify and never Multicasted

At least as a general rule of thumb

@hollow swallow

[hollow swallow]

rogey ill try change it up a bit, cheers

so i got rid of the struct, im just using the Ready? bool as the rep notify.

It runs but still if they join late they cant see it. is it because of how im trying to run the function in the widget?

i think its the whole set up, i need every other player to run that function when someone joins, not just the player thats joined

should i just make an array for each player that joins and whenever a new person joins it loops through the array and makes them all update their widgets again? probably only going to be max 4 players

[fathom aspen]

Could force it to show by setting bShowMouseCursor to true from the the PlayerController

Could even be a clue to what you should debug and where you should look

yeah?

You are literally looking at it

[hollow swallow]

Still no luck

only the client can see it change now not everyone unless i use that multicast that i was before

[hollow swallow]

the rep notify isnt firing when someone else joins in

[thin stratus]

@hollow swallow this is in a class that everyone has access to, right?

[hollow swallow]

Its just on the character yes

and the widget is a component of the character

[thin stratus]

OnRep should def call

Can you print it on tick and see if they at least get the correct value?

[hollow swallow]

ive put a print string at the end and its not calling for client 2 when they join, even after changing the value on client 1 before

but if i change it whilst they are in, it will notfiy them

values seem correct because if client 1 sets to true, then client 2 joins (he doesnt recieve the print string from the notify going off), if i then set client 1 back to false, client 2 can also see he is still false and recieves the print string

just cant work out why it isnt firing when they first join

[vagrant forge]

are there any norwegians in here?

[thin stratus]

Can you still confirm on tick?@hollow swallow

[hollow swallow]

rogey will do 2 secs

how can i check the value of the other player though xD

i know how to make it print its own value, just not the others

[thin stratus]

Just print on tick

It will call for everyone

[hollow swallow]

yeah think its working fine. server is ready up and client 3 isnt. and its printing

Server: False
Server: True
Client 3: False
Client 3: True

so it knows the other one was changed to true before it joined in. but it still doesnt fire the rep notify to run the function to update the text

[thin stratus]

Fwiw just run your UI code additionally on BeginPlay

Should fix the issue for now

BP OnReps are value changed notifiers more than actual OnReps (as opposed to CPP)

[hollow swallow]

Would I make an array and add each player that connects and then loop through them to all to update their text each time someone joins?

[thin stratus]

No

[hollow swallow]

Only 4 players so not a long loop

[thin stratus]

Just do what I suggested

[hollow swallow]

Rogey

Thats only updating the client that joined and they still cant see the client that joined before them

[thin stratus]

Strange, is the value correct on BeginPlay?

Also why is the WidgetComponent marked as replicated?

[hollow swallow]

was trying everything to get to work xD

So each character has the widget component contraining the text widget above their head, thought maybe it needed to be replicated so when its changed everyone sees it

first image i opened the host, pressed ready, then connected the client, as you can see they arent syncing.
Second image, i pressed ready up on both of them and set them both to ready, and they can see them change instantly from the rep notify

😮 just fixed it if i add a 1 second delay on the begin play

There goes my whole afternoon but atleast its working now. Thanks for the help, appreciate it!

[graceful viper]

how would I make it so a Multicast executes a function on every function except a specific client? Is there any identifiers I can use? an ID?

[kindred widget]

Can't really. You could loop through client owned actors and broadcast a client rpc to them that way, skipping the one you didn't want to send to.

[graceful viper]

makes enough sense I guess

[pseudo merlin]

I've read that an actor leaving dormancy gets all properties including initial only rereplicated to clients, is that true?

[thin stratus]

That's not a fix. If the lag gets bigger it will fail again

[clear island]

NetUpdateFrequency is useless if I'm using the push model right?

when I mark a property as dirty, is NetUpdateFrequency taken into account?

[hollow swallow]

I don't want to accept it but you're right. Any other ideas I can look into tomorrow to try resolve it?

[kindred widget]

I would simplify this to start with. Have absolutely nothing but the call to set the replicated variable on the server. And make the owner of the widget component's tick pass that state in and update the widget on tick. If you find this is working fine, that the state is correct in most all tests. Then you remove the tick call. And move the update to both Beginplay and the OnRep of the struct. If this fails you at least know that your variable is replicating but maybe your OnRep is failing.

[hollow swallow]

Cheers mate, will jave a crack at that tomorrow and see how I go

[valid bough]

Hi, question, so I have a weapon I created. This is how im setting the owner. Example: void AFPSCharacter::EquipWeaponOnServer(AWeapon* Weapon) { if (Weapon != nullptr) { Weapon->SetOwner(this); and this works, but chat gpt ( i use chatgpt to learn since I have something to talk to if i get stuck) says I should use this: Weapon->SetOwner(GetController()); // the owner is the controller that's controlling your character
so who is right? does it really matter? When asking it said it really depends on your game but the first option worked for me. It's reasoning was also "In Unreal Engine, this refers to the current instance of the class in which the code is running. So, in your EquipWeaponOnServer method, when you write Weapon->SetOwner(this);, you're making the weapon's owner the AFPSCharacter instance that is calling this method.

But since you're in a multiplayer context, ownership becomes important when dealing with network relevancy and authority. Often in Unreal Engine multiplayer games, the AController (or APlayerController for players) is used as the owner for things the character "owns" or uses, like weapons. This is because the AController is the primary actor associated with a player and is the actor that handles the input and makes decisions.

The GetController() method when called from an APawn or ACharacter will return the AController that is currently possessing the APawn or ACharacter. It's okay to use it in this context because each APawn is possessed by a unique AController (for each player). It doesn't necessarily return the local controller, it returns the controller possessing the pawn.

So you'd probably want to do something like Weapon->SetOwner(GetController()); to set the weapon's owner to the AController that's currently possessing the AFPSCharacter."

[thin stratus]

Learning from ChatGPT is really a shit idea

You can use "this" just fine because ownership is recursive. The owner of the character while possessed is the controller.

There are a few arguments for and against using the character over the controller. I usually use the pawn/character. You can also use the controller and pass the pawn/character as instigator

It doesn't really make a difference unless you create a situation in which it does indeed make a difference. Something like lifetime of the character could be one. If you need to know the owner of the weapon but the character just got destroyed, you have a nullptr.

[valid bough]

Well, it (GPT4) has helped me logical errors and thinking. It doesnt outright give you the answer and sometimes its wrong (like now), but it is better than being stuck for 3 weeks waiting for a response on the forum and can at least point me in the right direction for what I need to do. And thank you, yeah I thought it was wrong thats why I wanted to double check. I did not know this was recursive so i learned something new. Thank you!

[thin stratus]

I use version 3 for a first idea when solving problems. But I wouldn't "learn" from it. I mainly said one shouldn't learn from it and I stick by that

[dark edge]

What happens if gun owner is pawn and pawn changes possession?

[thin stratus]

Then the new controller would own it?

Or do you mean if the gun owner is a controller and the pawn changes possession?

Like again, one can construct problems if a game has to support certain gameplay features

If you use the controller and you can change the possession of a pawn, then you would need to also update the owner of the weapon

[valid bough]

That's a fair point if you have no experience at all, then yes I agree. But I know you cant read minds lol, I was mainly talking about logical errors and getting stuck lol.

[icy jetty]

Still better to just ask here and be patient. ChatGPT hallucinates about 80% of the responses when it comes to Unreal. GPT4 is slightly better (from what I hear), but still they were not properly trained on it.

Good for general concepts and stuff maybe, but otherwise it’ll just send you down the wrong rabbit hole, so often you’ll just end up even more stuck 😀

[small grail]

I mean if you ask for some algorithm for general maths, they are okay. But for gameplay features, just forget about them, lol

[thin stratus]

The algorithms are also often utter bs

They have a lot of hard to spot logical issues

[sly salmon]

I'd still rather let stable diffusion create my normal maps than have ChatGPT write my code.

[thin stratus]

At least number 3 is a lot more inaccurate

[thin stratus]

Isn't that paid?

[dark edge]

IMO ChatGPT is only good for brainstorming

If you trust anything it outputs as true then you'll be in for a surprise.

[halcyon totem]

me

[ivory bear]

How do you replicate animation montages (like fire weapon) on the "other full body mesh" of your FPS character that has just arms?

[latent heart]

You could do it via states.

[whole pine]

i noticed playerstate has a scene root. does that mean if i have this mesh capture to show in players inventories, it can physically be placed in viewport of the playerstate so it replicates what their player has equipped?

[whole pine]

i had to build unreal engine from source and convert my project to the build of the source

ohh

i had a few drinks

[cobalt gorge]

So right now I have characters set to deal damage when they punch an enemy, but only the host is able to ApplyDamage successfully. When I log for the client, logs do in fact come back, but the actual damage done shows up as 0. Only thing I can think of is because ApplyDamage is only called on the server

[sinful tree]

The Icon on the node signifies that it can only be executed by the server.

[cobalt gorge]

How are clients supposed to apply damage then? I tried creating a server rpc but got the same result

[fossil spoke]

Show the code.

You maybe doing something incorrect.

Always share the code when you have an issue.

It helps us help you.

[cobalt gorge]

Sorry totally forgot about that

[fossil spoke]

Read the log, it will likely have information as to why

[cobalt gorge]

This is my code in C++ for taking damage. It runs when the host is the one dealing the damage, but not the client. TakeDamage is overridden from its parent in the AActor class

[ivory bear]

Is this to me about the montages?

[latent heart]

Yeah.

[coarse gale]

so I setup a simple client - server RPC in c++ with just a log from the server to test it, If I run the game in the editor with 1 player and set as Play as Client everything seems to work how I would expect, it runs on the server and prints out my debug message from server, but if I set it to 2 player not 1, then I get the two server prints I would expect but also 2 other messages, anybody know whats happening ?

LogTemp: Warning: Server : RunningOnServer
LogNet: Warning: UNetDriver::ProcessRemoteFunction: No owning connection for actor BP_TopDownCharacter_C_1. Function Server_Interact will not be processed.
LogNet: Warning: UNetDriver::ProcessRemoteFunction: No owning connection for actor BP_TopDownCharacter_C_1. Function Server_Interact will not be processed.
LogTemp: Warning: Server : RunningOnServer

[latent heart]

If you play montages based on state onreps, you'll be fine.

[ivory bear]

I will need to research, not familiar with that. Thx

Doing this right now to no avail...

[latent heart]

For a grenade, you might have an "action" state or something. When it is changed to "throw" then you start playing the throw animation when that state is replicated. Or you could just as easily send a multicast rpc.

[coarse gale]

nvm... I read it wrong actually, you are sending to server first then mc

[hollow swallow]

Is there a better way to update all the players info when someone joins so they see the correct stuff without using a delay?

[ivory bear]

doesnt have to be a grenade. Example above I am trying to run any anim montage (currenlty death) and see it across clients. Problem is the Mesh_3P never reacts but the 1P will if I run the anim no it.
I am doing a multicast now...that Mesh_3P never plays its montage.

[coarse gale]

well, I just ran in standalone mode with 2 players and didn't get any of the silly messages about No owning connection for actor BP_TopDownCharacter_C_1., so its literally just a thing that happens when playing in editor it seems

[hollow eagle]

define "loading"
If you're literally just talking about loading the hud class then yes, that's normal.

The gamemode decides on the default hud class. Only the server has a gamemode. Therefore the server must load the hud to tell clients what to use.

That doesn't mean the server is actually spawning a hud for itself or doing anything aside from loading that specific class.

[hollow swallow]

What is a better solution than using a delay on the begin play here? The player lobby info is a rep notify but if i dont have the delay at the start it wont update when someone joins in. With the delay it seems to work fine

[graceful flame]

There's an event called EventPostLogin on the GameMode which has the new Player Controller reference for whenever a someone joins. You can use that as a starting point to do something on GameState or PlayerState or whatever else.

There's also EventHandleStartingNewPlayer on the GameMode as well.

I think the EventHandleStartingNewPlayer runs first then EventPostLogin is called after they've been assigned a PlayerController.

[coarse gale]

so I was doing some reading and I read Any network traffic must go through an owning connection which is usually attached to a player controller. is this related to the message I get No owning connection for actor BP_TopDownCharacter_C_1. when running through the editor, but not through standalone, is it because they dont have a controller assigned yet in the PIE but do in standalone windows ? whats strange is that desppite the message the event still works and prints on the server

[hollow swallow]

At the moment the character stores their info, and they have a widget component with the text above their head, they are updating the info on the character begin play. Should they not already have everyones info by then? Or should i store the replicated info on the playerstate instead?

@graceful flame

[graceful flame]

Well it if you plan on letting them play as other characters it makes more sense to have it on the PlayerState

and if the character actors get destroyed and respawned then you don't have to run that same code again during event begin play

[kindred shadow]

I'm blanking out on something I've done before, the client can set a variable locally prior to joining a server. Where should that be stored if I need to set it on the server once I've joined?

I tried the playerstate but that gets nuked on travel since from the menu I'm doing a hard travel.

[icy jetty]

🤔 game state?

[graceful flame]

GameInstance

GameInstance is always available and is always local only.

[hollow swallow]

I would still need to run it as the character itself holds the widget in a component. So even if i store the actual info in the playerstate it would still need to change its widget from that info. But maybe there wouldnt be any delay in getting the correctly updated stuff

Ill try change it to playerstate and hopefully dont break everything 😅

[graceful flame]

yea exactly the PlayerState would store that info like their name and score but the character displaying the widget with their name can read it from there

[hollow swallow]

And is the issue at the moment, because its stored on the character, its trying to access that and get the repnotify updated stuff from everyone before the character has actually spawned? So on the playerstate it should have the info a few ms before the character spawns? im not sure what order everything runs in but i assume playerstate then player controller then character?

[graceful flame]

As far as I know its like this:

1. GameInstance -> (standalone) then you may or may not have a GameMode, and GameState but depends on how your game is setup.
2. (connect to a server's GameInstance)
3. next there's a GameMode and GameState already running on the server which handles the incoming connection and assigns a PlayerController and PlayerState.

Meanwhile your own local GameInstance keeps running the whole time but your main menu's GameMode, GameState, PlayerController and PlayerState are all destroyed.

You get assigned a PlayerController and PlayerState before you possess a character, but if the character is level placed it will run the EventBeginPlay when the server first starts up and once again foreach player that joins until it's assigned a new owner (via possession) other than the server.

If the characters are spawned in and not placed directly on the level then the EventBeginPlay on the character runs before it gets possessed but doesn't run when the server is starting up since it doesn't exist anywhere in the level yet.

EventBeginPlay runs when the character asset is loaded, but EventPossessed runs when a PlayerController is assigned to control it via the server.

Also there's a handy Player Array of PlayerStates that's part of the GameState which is an inherited variable and is automatically updated for you.

You don't even have to cast to your specific GameState 😮

[hollow swallow]

Damn this stuffs confusing xD so much to wrap my head around

[graceful flame]

The compendium is pretty good at explaining things also the Replication video in the pinned messages.

[hollow swallow]

i find it hard to understand what can talk with what. Trying to bind some text to a variable on the game mode at the moment but guessing that aint gonna work haha

[graceful flame]

GameMode is server only

[hollow swallow]

Yeah i have a countdown on there so its accurate. But i need each player to access that countdown to display on their widgets

[graceful flame]

There's a diagram in the compendium which takes out all the guess work

[hollow swallow]

How do you communicate that down the line

ill check it out, cheers

[coarse gale]

well I fixed my issue with this

if (GetController() != NULL) {}

I was running the event on begin play, I guess it fires that event from every instance of that actor, including ones that don't have controller. so I was still getting the expected number of server messages ie 3 messages for 3 players, but also a bunch of messages from the other instances that are not player controlled, or something like that 🤷‍♂️

[graceful flame]

Use GameMode for stuff that define the rules of yoru game as in is this Team Death Match we're playing or is it Capture The Flag, or are we in a race with a start and finish line?

Use GameState for stuff like your timer because its a variable everyone needs access to.

[graceful viper]

Is there a difference between a client RPC and just a normal function?

[coarse gale]

yes

https://docs.unrealengine.com/5.2/en-US/rpcs-in-unreal-engine/

[hollow swallow]

Having a dig through it now

[graceful flame]

https://cedric-neukirchen.net/docs/category/multiplayer-network-compendium

[hollow swallow]

half of its going over my head but hopefully it helps a bit 😅

[graceful flame]

That discord link was weird and went to the wrong spot

[graceful viper]

Already read all of that

I asked one question lol

[coarse gale]

And I gave you the answer lol

Server RPC is called from client-server

[graceful viper]

No you didn't

[coarse gale]

Client RPC is called from Server-Client

The answer is in that link

[graceful viper]

Server RPC can be called from literally anything

[coarse gale]

It can be yes, there is literally a table showing you all the possible outcomes

[graceful flame]

RPC is like this particular client needs to run some code on the server and it "uploads" any input data along with the request. Meanwhile a function is sort of like a custom event that just runs on the blueprint its inside of. But the function can run on either server or client depending on ownership, relevancy, and authority.

[coarse gale]

But as I said , I answered your question, and gave you a link that explains why its not the same, I dont know what more you want

[graceful flame]

"Server RPC" isn't a thing.

[coarse gale]

the docs disagree with you

   UFUNCTION( Server )
    void ServerRPCFunction();

[graceful flame]

The server doesn't run a remote procedure though because its already the server. It's the client running code on the server.

[hollow eagle]

what

it's an rpc

it's the client invoking a remote procedure to run on the server

it's literally the definition of an rpc

[graceful flame]

That's why I said its the client running code on the server

[hollow eagle]

so why did you say "server rpc isn't a thing"

[graceful flame]

because its run on server

[hollow eagle]

yes, invoked by the client. So it's a procedure, invoked remotely. An RPC.

"remote" doesn't imply remote to the server, it implies remote to the caller

[graceful flame]

Thats run on client

[hollow eagle]

a server rpc called by a client is not run by a client

[graceful flame]

thats why they're called Run on Server or Run on Client

[hollow eagle]

"run on server" is a server RPC. "run on client" is a client rpc.

blueprint terminology is bad, the actual underlying code is server/client rpc

[graceful flame]

I find server rpc and client rpc to be more confusing than run on server or run on client, jeez didn't mean to offend the lurkers lmao

[coarse gale]

ok I think I understand the original question now, so what you are saying is this IS, just like calling a function on the server ?

[hollow eagle]

that's a client rpc, if called by the server it runs the implementation on the owning client

[coarse gale]

that was the question, is a client RPC the same as just a function

[hollow eagle]

I don't know if I'd touch anything in NPP right now

[hollow eagle]

but what does "the same" mean

[coarse gale]

and that ^^ is what I know as a clientRPC

[hollow eagle]

ClientRPCFunction() is calling a function named ClientRPCFunction that happens to trigger some network code that runs a function on a client at some point in the future.

so yes, it's "just" a function

[graceful viper]

It's very simple what I asked,

Is there a difference between an ACTUAL function and a client RPC besides the fact that the client RPC is an RPC

[hollow eagle]

they're both functions

[graceful viper]

So what's the point in it

[hollow eagle]

what do you mean what's the point

[latent heart]

Lol

[hollow eagle]

are you going to write all the netcode manually to make a client run something?

[coarse gale]

I know what it does, its not just the same as a server function afaik

[latent heart]

The Client RPC part tells the function where it should execute.

That's the difference.

[graceful viper]

A normal function executes on the client anyways though?

[latent heart]

Only if it's called on the client.

[hollow eagle]

the point of a client rpc is that you call it from the server and it executes on a client

if it's only ever going to be called on the client for itself then yes, it's pointless to have a client rpc

[graceful viper]

Oh, assuming it's called on the server it wouldsend it to every single client except the server. Got it

[hollow eagle]

no, it would send to the owning client

a multicast is for sending to everyone

https://docs.unrealengine.com/4.26/en-US/InteractiveExperiences/Networking/Actors/RPCs/#rpcinvokedfromtheserver

[coarse gale]

read the table 😄

[graceful viper]

Actually stop typing

[coarse gale]

dont get mad because you asked a question and got the answer

[hollow swallow]

So i have the countdown variable on the gamestate, then a widget on the character with a binding to the countdown variable. It shows the correct variable at the start, but when the countdown starts it is not updating the text

[graceful viper]

So I'm confused on how it becomes useful if called on the server

[latent heart]

You must be trolling.

[hollow eagle]

...because you want to tell a specific client to do something

not every client

just a specific one

[hollow swallow]

It will work for the host, is it because only the server can see the variable? i thought gamestate replicates to clients and server

[hollow eagle]

the gamestate does, did you replicate that variable?

[hollow swallow]

That fixed it 😅 i assumed gamestate replicates everything already

thankyou

[coarse gale]

man literally tried sending me c++ docs before telling me to go read, and gets mad when you link him some docs back, go get fkd

[hollow swallow]

Starting to understand a bit better now the flow of everything. Just preparing my brain to get fried trying to move everything to where it is suppose to be and breaking it all on the way 😂

[coarse gale]

you not realise that was a fjoke and I know its not js you f reeeee

[deep shore]

if an actor is marked “always relevant” and multicasts a sound or particle effect, will it have any performance impact for players outside of visual or audible range?

[coarse gale]

I wanted this link, https://docs.unrealengine.com/5.2/en-US/rpcs-in-unreal-engine/, thats all

[fossil spoke]

@coarse gale @graceful viper Please read the #rules thanks. Lets keep it civil.

[coarse gale]

understood

[hollow eagle]

whatever the multicast does is going to happen regardless of the player's position, whether it has a performance impact depends on what it's doing.

play particle FX that is setup to cull outside of a certain range? You're still paying for the multicast itself and whatever the cost of spawning the particle fx is, but you're probably not incurring any gpu overhead or much else because it's not rendering.

and the multicast's implementation could ofc just decide to do nothing if the local player is far away

but no, the engine doesn't automatically know that you want to avoid doing things if the local player is far away. You have to implement that yourself or take advantage of specific features that help doing so.

[hollow swallow]

Is it okay to do this? From the gamestate i want to make every connected player open a widget (countdown to start the game) only around max 4 players

[deep shore]

yeah, these are culled particle effects and attenuated sounds. I was just worried that players very far away would somehow be impacted by frequent multicasts that they can’t see or hear.

because the game pretty much revolves around this particular actor, but that’s a fair point. I suppose i could reconfigure the sounds and effects to be passed through a different actor

[north steeple]

/st\

[sinful tree]

It's not the best thing to do. You could just have a boolean with an OnRep.

[hollow swallow]

still having issues with needing to use delays. If i have no delay here it gets the incorrect info. It is a replicated struct on my character, and the character persists the whole time. Im just opening a widget and want it to check a bool from that struct.

[latent heart]

Honestly I would replicate a datetime that was a match start time. If it's set (not zero) and not passed the time, then show the widget. All connecting players can see the time.

[hollow swallow]

i still want to work out how to resolve this though as this is now the second time ive had to use a delay whilst trying to access that struct. and i will need to constantly get different info from it

this current bit, when you ready up, it turns the ready button green, and text above the players head green, once everyone is ready, it starts a countdown. If someone cancels it, it closes that countdown widget for everyone and goes back to the lobby, the text above everyones head and their own ready button need to access the ready bool to set the colour red / green. With a delay on both, works fine, even if its 0.1 seconds. But if theres no delay its always the default value. But that struct exists the whole time so i dont understand why it cant get that information instantly

if i can understand why then it will help me the further in i get. only on the lobby menu at the moment

[near granite]

Who knows what it is?
I can't join to server with this log
TravelFailure: ClientTravelFailure, Reason for Failure: 'Servers can't open network. URLS'

In the EntryMap, I did Open Level like this! always there was no problem..but now strange..

Oh..I add the open level in the next level too....;;solved..

[hollow swallow]

I have it back on the playerstate now, although the same issue no matter where i put it

[thin stratus]

If it's a Widget above other players too, then that wouldn't work though, cause you would want to get their PlayerState and not the local one, or?

I'm a bit puzzled why you have so many issues with this. A RepNotify variable on the PlayerState should call the RepNotify when another player joins for all the PlayerStates.

I can't repro this at the moment cause I'm not in reach of UE until Sunday/Monday. @hollow swallow

It almost must be something you are doing that you aren't considering important for this problem and thus haven't shared it yet or so. Hmm.

And if the RepNotify doesn't call, for whatever reason, then the Data must at least be valid on BeginPlay of the PlayerState which also calls once the instance replicated to the new player.

I also saw you talked about some other issue in #blueprint . Is that related?

[hollow swallow]

Thanks for the reply, Have tristan having a look through and we still cant solve it either. The other problem is pretty much the same, it cant access the variable on the playerstate properly. Yeah the widget is on each player, so i want them to get their information, and update their widget so everyone can see their name above their heads etc

ive tried looking at some videos of like health bars etc as its the same concept really

[thin stratus]

The variable is on the PlayerState and the Widget on the Character... Hm. Do you account for the fact that the Character and the PlayerState can replicate in different order?

[hollow swallow]

I havent no

[thin stratus]

For Clients there is no guarantee that the Character or the PlayerState replicate first

[hollow swallow]

ive tried having the variable on the character, the controller, the playerstate and its the same issue everywhere

[thin stratus]

Hm

[hollow swallow]

so even when it was on the character it didnt make any sense

[thin stratus]

Yeah it's also not character data so that shouldn't be the answer anyway

[hollow swallow]

should be such a simple thing to do and ive been stuck on it for wayyyy too long hahah 😅 might just delete everything and start it over

[thin stratus]

I mean fwiw you could for now just bind the value. How are you setting the PlayerState variable inside the Widget?

[hollow swallow]

im passing it through, so theres an update function on my character, he casts to the playerstate, gets the info then passes it through to the widget function to change the text

[thin stratus]

Cause BPs have no access to OnRep_PlayerState

Ah

When is that update function called?

[hollow swallow]

begin play

and also whenever someone joins, it loops each player and runs it again

and its giving very odd results, client 1 can see all 4, client 2 3 and 4 see random peoples

sometimes not even their own

[thin stratus]

Yeah cause replication takes time

[hollow swallow]

if i add a delay it gets better but it needs to be 2 seconds +

[thin stratus]

You have no access to CPP?

[hollow swallow]

nah havent touched it yet

[thin stratus]

Hmpf

@dull lance only if you can properly bind to that delegate

The race condition is a pain in BPs

[hollow swallow]

even if i close the widget and recreate it, sometimes it cant access the playerstate info which would have been up and running for ages

[thin stratus]

It's a Widget for other players. There is no PlayerController for those

[hollow swallow]

if i set it up on the construct of the widget

is the player state always started before the character?

[thin stratus]

The usual setup for this would be:

In the Character, on OnRep_PlayerState, notify the Widget(Component) about the new PlayerState (if valid).
In the Widget, bind to some OnPlayerInfoChanged delegate that you would create in the PlayerState and broadcast in an OnRep_PlayerInfo function (given PlayerInfo is marked as RepNotify).
Additionally in the Widget you would get the current PlayerInfo once when binding to get the current info in case the OnRep already called with new info before you bound.

The only thing you are missing due to BP is the OnRep_PlayerState function that natively exists in Pawns/Characters

You could make your own but that's pretty yucky

[hollow swallow]

being its a lobby and the characters dont move. Should i just make each client make their own widgets for each player?

[thin stratus]

This wouldn't really change your problem

[hollow swallow]

is that more simple then having each character display their own widget?

dang

or i just make it update on a loop every .2 seconds xD

[thin stratus]

One issue here is that you have two actors that need to both be valid etc. But you said the issue even exists when moving the data to the character

[hollow swallow]

yeah was the same with data on the character

[thin stratus]

I'm still sure there is something odd going on that we don't know about.

[hollow swallow]

looking at health bar above player videos it should be pretty much the same thing and straight forward but its just not

[thin stratus]

Cause having the data in the character and having it notify the Widget on OnRep should work

[hollow swallow]

yeah thats why im tempted to just wipe the lot and re do it

ive tried changing it up so many times now im starting to get confused following the flow

[thin stratus]

I would suggest you try this once more in a fresh project with a minimal setup

[hollow swallow]

this pretty much is a fresh project

theres a host / join game menu, and the lobby menu, thats it

[thin stratus]

But you gotta say that that's a very involved workaround for something that takes 2 minutes to setup usually

I mean fwiw they could just make a second PlayerState variable in the Character, mark it as RepNotify and set it to a value when Possessed calls.

And use that new OnRep to do what I wrote

Not pretty but less involved and the data stays in the PlayerState just fine

[hollow swallow]

why cant it just be easy 😅 store it in the player state, and when i want that data, give me the damn data hahaha

[thin stratus]

Epic even wrote some init system for Lyra to have some events when everything is ready. But yeah

Would be nice to have some system where one could write some requirements for a function to call and register that someone. And then fulfill these requirements in other places. Probably something with GameplayTags or so.

[hollow eagle]

the lyra init system they added in 5.1 is a godsend

[thin stratus]

We also got a plugin internally that just exposes all those functions that CPP have natively to BPs. Like the OnRep_PlayerState.

[hollow swallow]

Just put this in the game mode, and it prints the names fine. If its valid then, it should 100% be valid when the character spawns then creates their widget

[thin stratus]

Just for convenience in BPs.

[thin stratus]

Well no. The Character can spawn on the Client before the PlayerState does

[hollow eagle]

err, maybe it was 5.2

are you talking about init states or the old thing

the init state system is great

oh, yeah, that stuff is great

nothing really relies on it, it's a completely optional system

and if you have a bunch of interdependent components it's incredibly useful

[thin stratus]

Man, am I happy to not use Lyra as a base for projects 😅

[hollow eagle]

the pawn extension stuff does, yeah, but that's because it's a bunch of interdependent components. game feature actions don't.

the stuff they had before init states was way worse

a bunch of manually triggered events on the pawn ext component was what it used to be, and it was painfully hard to follow the order of what had to be initialized when

now you just bind to "i want the pawn ext component to be in this state" and it just works

[hollow swallow]

In that case on the character can I make a function that casts to the player state and fails it repeats it every .1 seconds until it works and then create my widgets? Or is that terrible for performance?

[hollow eagle]

pawnext's init is really delicate in general

it kind of sucks

it's not the fault of the init system though

the init system is really simple and a useful framework, it also isn't tied to pawnext

if you screw up pawnext's init in any way everything breaks so yeah, it's really delicate and not well designed.

[thin stratus]

That's terrible in general. But it's not like you have a lot of options with that missing OnRep

[hollow swallow]

yeah im very new to unreal so just trying to think of a way i can make sure the playerstate is valid before it starts everything

😂

[thin stratus]

I don't like the idea of moving the data into another component. There is a lot more going on with PlayerStates than data

[hollow swallow]

i mean my pc is a beast it will be fine... as for my friends, thats a them problem when they play 😅

[thin stratus]

That delay won't even show up anywhere tbh

It's still an ugly solution

[hollow swallow]

yeah its a hack job for sure

[thin stratus]

So

This is also not a nice solution

But you could for now set a Character variable on the Widget

On BeginPlay of the Character

[hollow swallow]

ill keep googling see if i can work out how to make my own initialize thingo so that everything is up and ready before i start doing anything

[thin stratus]

And then in the Widget you create a binding (ugly) and simply check the character and its PlayerState for being valid before accessing the value you need

That's a tick poll but at least you can keep your stuff in the PlayerState

[hollow swallow]

Yeah thats true. I feel like its something wrong somewhere though as even when i had it in the player it had issues. And that would always be valid when the widget gets made

Dont roast me too hard 😂

with 4 clients fails around 15 times total before it works for them all xD

[kindred shadow]

So I asked this earlier and was told game instance or gamestate but let me add more context:

I have a checkbox on a widget prior to connecting to a server and I need to set that variable on the server after you join because it'll be used to verify if you are authorized to do certain actions compared to the rest of the people who join.

GI doesn't work because it keeps it locally only and the server will check if they are allowed to perform certain actions based on this variable.

[sinful tree]

You would have to store it on the game instance if you want a variable to be set on a client before they're connected to the server. You would then have to RPC it through a client owned actor like their player controller, character or playerstate once they've connected.

[hollow swallow]

My repnotify calls my widget to update, yet its still behind. I change the value of the lobby info, then the on rep updates the widgets, but its always out of sync. waduuuu

it only fires the event once that variable has been changed, so how can it not see the change

and just like that, i discovered net update frequency

Not the prettiest but after 8 hours i finally have it working semi nicely. Thanks for all the help everyone!

[void nest]

Hello. I'm trying to test my game in standalone. Like half an hour ago when I first started testing tin standalone I was able to host a game and see the game on the other standalone and join. However, since then I have not been able to find any hosted games anymore. Anyone know what could be causing this? I have restarted the editor, restarted steam, nothing seems to fix this. 😦

I have also not changed a single line or node of code, it just suddenly stopped working

[hollow swallow]

I normally test as client, then in my menus make 1 host and the others can see it and join

[void nest]

Yeah but i'm trying to test seamless travel which doesnt work in PIE

normally I also use that method for testing

[coarse gale]

When I read this, my initial thought is, why are you trusting a check box from the client for server sided authorisation.

[coarse gale]

is that just a random statement or were you meant to tag somebody

Sounds good, you should include a part about how the client shouldn’t authorise what the server can authorise. I think it might be of use 🙂

Read what I responded to above

most likely. I am actually really interested in the context of what they are doing tho. A client checks a box, and then that is passed to the server to authorise what actions they can perform. I need to know more haha

[quiet fjord]

guys can i use ponPostLogin event when i use servertravel seamless?

[thin stratus]

This isn't ChatGPT stuff or?

@uneven dock

Clients have no GameMode when connected

It uses the GameMode that is setup for your project/map/etc.

So it's not training it or so? Cause I would much appreciate it if people would ask me if they can use my stuff first.

Doesn't mean I automatically allow people to train their AI with it

That's false and one of the main problems people have with AI peeps

[kindred shadow]

I would never set things up this way but its the way the client wants the setup to be

[ebon basin]

Getting some crazy corrections on my character on UE 5.2. It's not doing anything fancy, it's an ALS community character with a very simple GAS component and 4 abilities.
Using network emulation on the average preset for both ways.
Is anybody else experiencing this?

[ebon basin]

Yes ALS is basically just a more advanced character (replicated) built on top of the Character movement component, is it that bad? This character is supposed to be made for replication

And I must say, I tested it with some friends, none of them said anything even though we surely had around 100ms latency since they're in Italy and I'm in Sweden.

It seems to be especially bad with the network simulation in editor

One thing that is crazy to me is that montages are getting interrupted, and that's stopping my notifystates from executing fully

sorry, replying here for notification, forgot to do it before

These ones. I'm running each process separately

So total latency on client is 180 from stat net

I'm starting thinking it's caused by background cpu usage on the editor. Even though that's supposed to be disabled, I see it throttling to something close to 15 fps when PIE is on

Might be because of the process Run Under One Process being false (need that to debug GAS)

[tranquil yoke]

I am facing this issue, where I have a component, which has this function to send Component Owner Transform to the Server :

    void Server_SendTransform(FBPVRPosRepNoScale NewTransform);```

For some Reason,  if i call the above function, as soon as i can , eg: on Begin Play. It does not work.
but if i wait for 1 second then send on BeginPlay then it works.  

I think the issue is, you cannot RPC to server, unless actor is owned by Owning Client. 
but i also check this before sending the RPC, and it returns true.
Anyone know what is wrong with this ?
```return MyOwner->HasLocalNetOwner();```

how can i check for an Actor or Component, that i can send RPC to server ?

[halcyon totem]

can someone please help? I am using seamless travel and noticed items places on my map are failing to spawn before the player comes in