multiplayer

[ebon zealot]

and I should only give the UI this info once it's ready

[chrome bay]

You have to workaround it. You can't garauntee the object will even be in a state client-side that it was ever in server-side, so it's up to the client to handle that gracefully

Clients can ultimately get into states for properties that never even existed server-side, due to packet loss etc.

[ebon zealot]

hm

thanks for the help

[fossil spoke]

What is the info you are relying on exactly?

Would it make more sense as being sent in an RPC?

[ebon zealot]

I guess my course of action is to have the UI listen to every time the inner objects change and call a delegate for my ui to only use that sub-data that was replicated

[ebon zealot]

nope not really

it's an entire inventory attached to a playercontroller

[chrome bay]

Callbacks for UI updates do make sense sometimes, but often it's easier to have the UI tick it's own state internally, and just read back the latest state from the object

[ebon zealot]

which has no fixed size - the inventory can have items that contain inventory and the chain goes on for possibly ever

[chrome bay]

The issue with waiting, is if the UI panel "gets" a property in the meantime, it might still get itself into an unhandled state

[ebon zealot]

I wanted to do that but it felt like it's a bad way for some reason

[chrome bay]

The way to handle the inventory case is rebuild the panel each time the inventory is modified

[ebon zealot]

now I'll do it, thanks for the heads up

[chrome bay]

It depends obviously, ticking vs events

If you have to rebuild/reassign many widgets and the event doesn't happen often - events may make more sense

But the UI should be able to rebuild itself at anytime, otherwise if the UI decides to query the inventory for the current state, and can't handle that state, you have an issue

[ebon zealot]

I see

so it should regularly update its data

[chrome bay]

I would simply broadcast the event from the OnRep, and have the UI respond to the current state.. whatever it is

[ebon zealot]

alright

[chrome bay]

And that way, you know you can create the UI at anytime and it'll just deal with whatever the current data is

[ebon zealot]

so in my current system an item can have an inventory which can have an item which can have an inventory.. and so on

how would I limit the length of this chain

unless the client actually needs to view later into it

the actual data structure is
UItemInstance
|-> TArray<UItemMetadata> (UItemMetadata could be an instance of UInventoryItemMetadata)
|-> InventoryMetadata
|-> Inventory
|-> TArray<UItemInstance>... etc

[frank birch]

If you have the structure in a struct you can force the struct to always replicate the entire struct instead of just what changed

This uses more bandwidth but you make sure you never have "half states"

I read that somewhere in the guides but I can't remember

Maybe it was something from wizzardcell?

[dark edge]

I'm working on something interesting along those lines

basically a global inventory as a mapping of basically item serial numbers to structs, which can contain contained items serial numbers

bit like a flat database

If ItemStruct looks like:

ItemID
ParentItemID
ChildItemIDs
OtherItemData.....

Then the entire state of the world could be just a sparse array (if ItemID is index) or map (if ItemID is some GUID or something)

You would't want to replicate the entire world state but you can replicate stuff inside actors or on demand (GetChildItemsForID)

[queen escarp]

when rebuilding a build that you built yesterday and only made a small change to shouldent it be like instant ? or why dose it need to rebuild everything again 3-4 hours ??

or is it me doing something wrong ?

[agile loom]

You probably enabled the full rebuild option

[queen escarp]

hm

imma look

[queen escarp]

yeah i had it on

[hollow swallow]

i want to play a montage over the network, do i play it on my character, then call to server, then do a MC? and if so, do i need to exclude my player from the mc?

[queen escarp]

can i work on the project while building it ?=

or will that mess with the build ?

[flint hollow]

What is the biggest contribution to massive amounts of player agents in a networked game? Beyond bandwidth and transport ofcourse.

I suspect its server hardware and the capacity to resolve packet data per CPU cycle. Anyone have more educated guesstimations or knowledge about this ?

[fossil spoke]

Depends on the game. Depends on a lot of factors.

Profile the game. Identify the bottlenecks. Optimize them.

CPU is generally going to be the biggest issue.

[flint hollow]

@fossil spoke
This was a more theoretical question so humour me. Is the cap on optimized software or in hardware? Lets say the network data to resolve are positions in 3D space. What gives in first? client software, transport layer or server hardware?

those are the 3 key elements as i guesstimate it

[frank birch]

Toss a 3 sided coin. That's your result 😅

Depends on where the programming is too thin

If you optimize so clients don't need to use too much CPU, your server would catch fire

If the client does most of the hard work, your client catches fire and also cheats

If you balance the load but don't optimize the network, the network burns

If you do everything perfectly, all three should crash at the same time

That is how you measure balance

It might not be good, but it's balanced. Everything failed at the same time 😅

[flint hollow]

this was the best line

I've beta tested MO2 (UE4, FPP, Melee, rather detailed ) and been in stress tests for that game that resolved around 400 people in relevance. Not without issue ofcourse.

More recently i tested Foxhole and they have a pretty solid thing going on

https://youtu.be/qErp-MOakzY

the r2 engine test video is mostly what prompts me to think about the theoretical limits of network agent relevance

[frank birch]

just to make sure I am not allucinating knowledge like a chatbot:
Replicated properties on a component are just extra steps for the engine and it's better to keep the replicated properties in the actors... right? 🤔
What about RPCs? 🤔

[winged badger]

components RPC through their actors

and don't need to be even replicated to do so

[viscid tapir]

I have this function void ACardShop::TryBuyCard(AActor* TargetActor, const FCardStruct& CardToBuy) in c++ and i wonder if passing the whole struct is a good idea. I thought about passing a FName which is the ItemID and from there using the FindRow method to retrieve the struct inside of the function. Its mainly because of blueprint issues since I copy the entire struct from the widget to the player controller server rpc

[earnest jackal]

so far my project works fine running in editor, including when set as listen server with another window. This is how i've been running things until now, and no problems:
https://i.imgur.com/UNBDOyU.png

But I am now trying to run a standalone server and client from the command prompt, and bugs are appearing. This is how i'm starting it up:
https://i.imgur.com/Xm1z7Z9.png

There are a few issues, probably all related, but the easiest one to point to is that i have some control inputs in blueprint which call a C++ function
https://i.imgur.com/G4o5mP2.png

In the standalone server, this is not working. The function is never being called, i have a log message at the top of it and nothing appears in the server log

What differences are there between the way i'm running it, and the way that it worked before, which could possibly explain this problem?

[graceful viper]

(not really a question for unreal but just in general) is it bad practice to use only rpcs and regular functions? Godot has absolutely no docs on the new multiplayer stuff and from what I've heard it's extremely buggy so I'd like to avoid it

Like is it straight up impractical performance wise or something

[frank birch]

what do you think an rpc is? 🤔

[graceful viper]

A special function that is normally only allowed to be called by the server, it calls to all other clients connected

[frank birch]

ok, yes, and it can also refer toa special function that when called by a client it runs on the server

now, your question:

is it bad practice to use only rpcs and regular functions?
as opposed to what?

[graceful viper]

Unreal and unity and somewhat godot have replicated variables but not sure how they do in terms of performance, are they any more performant?

[frank birch]

also @rose sparrow this one's on you mate 👀

[frank birch]

do you know anything about replication? like at all? 🤔
maybe start from scratch? https://cedric-neukirchen.net/docs/category/multiplayer-network-compendium/

[chrome bay]

RPC vs Property have different purposes

Neither is "bad"

[graceful viper]

I've already read it

[frank birch]

good, so now, which one is "better" performancewise comes down to the exact network implementation of each engine and how the bundle stuff 🤔

it is not something that works from engine to engine

[graceful viper]

Ok but that's not what I asked, I asked if using only rpcs we would a terrible idea or not

Performance wise

[frank birch]

if using only rpcs we would a terrible idea
Yes. You will need code that doesn't need to run replicated 🤷‍♀️

and say you only have RPCs and local functions

[graceful viper]

is it bad practice to use only rpcs and regular functions?

[frank birch]

you will need variables at some point

[graceful viper]

The variable values can be changed via the rpc

[chrome bay]

yes it would

[frank birch]

oooooook, now I get your question:

Would it be better performancewise if I never use replicated properties and only send my values in RPCs?

i think it would be worse networkwise

[chrome bay]

It's a silly question because there isn't an answer

RPCs vs Properties have different purposes

Whether one or the other is better for "performance" is irrelevant

[frank birch]

but you could make an rpc for each property and always call that rpc to change the value of a non replicated property 🤷‍♀️

you are trying to outsmart the engine

which is silly 😛

[chrome bay]

And in Unreal that would fail spectacularly

Late join would be broken, relevancy would be broken

Any dropped RPC's would mean permanent unrecoverable desyncs

[frank birch]

you have to implement all of that from scratch, that is why trying to outsmart the engine is silly

[graceful viper]

reliable makes it that doesn't happen right?

[chrome bay]

If you don't receive a reliable you get kicked

[frank birch]

reliable is.... an interesting concept 😅

yep

[chrome bay]

And reliables are more expensive

And if you overflow the buffer, you also get kicked

[frank birch]

i didn't know that one

[chrome bay]

It has to. If you drop a reliable, the engine has to assume you have got into an unrecoverable state.

[frank birch]

good ol' fubar

[chrome bay]

Send a handful of reliable RPC's every tick and see how long the game stays up on a real world connection

[graceful viper]

Good to know then, is there anything else I should know about where crutching rpcs isn't gonna cut it?

[chrome bay]

Here's literally all you need to know

[frank birch]

but why tho?

[chrome bay]

State = Properties
Events = RPCs

fin.

Sometimes, you might even do events with properties - depending on the context.

You should never modify persistent game state from an RPC, unless it's the client asking the Server to do something for it

[frank birch]

Replicated properties in unreal work as intended and as Jambax said you should use them to replicate "state"
If you are working in another engine where the replicated properties are not so working (don't know godot, but it might be roblox, unity, making a homebrew engine), then the way unreal handles RPCs won't apply to that other engine 🤷‍♀️

for example, a Reliable RPC in unreal might not mean the same thing as a Reliable RPC in roblox or unity 🤷‍♀️

[graceful viper]

Hmm, alright, thanks for this info guys

[earnest jackal]

bump ^^^

[sterile plaza]

unreal networking is very robust
we had to make some small tweaks for performance shortly before ship, but we didn't try to ditch anything about the way UE wants to do networking

[rose sparrow]

I guess that you should try to call the less times as possible in any system (my little experience is mostly witn EJB), you don't want the server to spend time on useless stuff (and Godot's networking is similar to UE, the new one is "easy" to use but not documented yet)

[frank birch]

your mouse wheel event (only the client has a mouse so it is coming from the client) is calling a local function.
unless you have a server rpc somewhere, not printing in the server is working as intended 🤷‍♀️

[earnest jackal]

ah good point. It DOES call a server function eventually, but failing before then is a possibility due to one of the other bugs i'm still trying to pin down
is it possible to launch a logged client in this manner?

[sterile plaza]

do what?

[vernal gorge]

so question about like client what cant make it laggy? and like movement wise movement is replicated but unsure what can be causing to be choppy

[sterile plaza]

what's choppy? that looks smooth to me

[frank birch]

https://forums.unrealengine.com/t/is-it-possible-to-get-an-output-log-when-i-start-the-game-by-right-clicking-on-the-unreal-engine-project-file-and-choosing-launch-game/329982
add -log to your console command? 🤔

[sterile plaza]

but you could check the replication tick rate

[vernal gorge]

first one is not the second one

[frank birch]

you could also see if the network corrections are angry at you? (if you are using character)

[vernal gorge]

unsure how to do that lol.. new to this also using blueprints

[frank birch]

oof, okay, networking from blueprints is rough.
lets see, are you using character? or a custom pawn?

(extending from character is also using character 😅 )

[sterile plaza]

does character do things you'd want a ship to do?

[vernal gorge]

pawn as charecter class

[frank birch]

it does network 👀

[sterile plaza]

I don't remember but I'd assume it's doing bipedal type stuff.

[frank birch]

character does network, unless you are networking god, you want a character to handle the network 😅

the thing is, you don't have prediction

[vernal gorge]

ok i though it was like fps related or othere stuff lol so its prediction related hmm

[frank birch]

either the server trust 100% what the clients says (cheats ajoy!)
or the server has to validate everything you do and that feels laggy and rubberbandy

[sterile plaza]

This seems much more networking than FPS related. Although you could see what the FPS is.

[frank birch]

Character Movement Component has a looooooot of trickery to not feel rubberbandy

[sterile plaza]

yep

are you familiar with the concept of prediction and rollback?

[frank birch]

but you have to play by the rules

[vernal gorge]

im not xD

[vernal gorge]

well then its intresting because its only when rotating the drone or camera "aka yew roll pitch" not movement is laggy just rotations

[frank birch]

This is how unreal Character Movement does prediction/reconciliation. It is explained in a very agnostic way https://www.gabrielgambetta.com/client-server-game-architecture.html

This is how figthing games do rollback netcode. This is not implemented in unreal and if you are making a figthing game... good luck 😅
https://bymuno.com/post/rollback

[sterile plaza]

Building on what ElementalCode is saying, clients "predict" what something will do and assume the server is okay with it and do it. The server then gets the instructions, either approves it, in which case the prediction is fine and things carry on smoothly, or it's wrong. Then you have to rollback and the client will undo what the prediction did.

oh, that looks like a great resource

yeah... fighting game netcode is cursed

[frank birch]

rolling back on the client is called "correction"
rollback networking usually means rollback in the server to inject the input that the user did and resimulate and let everyone know that you did block that hadouken... is... interesting 😅

a famous rollback lib is called GGPO and can be implemented in unreal

[vernal gorge]

well any help is helpfull so thanks!

[frank birch]

Omen of Sorrow (shout outs to chile) did it

[sterile plaza]

wtb fighting game that uses lock step like RTS engines

[earnest jackal]

Okay how about the inverse situation? I now have a client and a server both doing logs, and a log message that should be coming from the server is appearing in the client's log only. That shouldn't happen right? Would the message be in server log only if it were running on the server?

[sterile plaza]

UE logging server/client attribution has always been correct in my experience.

If it says it's logging from the client, it's happening on the client.

C++ or BP?

[frank birch]

pretty much 😅

[sterile plaza]

It's so nice that the on screen debug messages are networked and tell you the env.

in PIE at least

[earnest jackal]

i have a sneaking suspicion that this client just isn't connected to the server. Launched using this command....
"C:\Program Files\Epic Games\UE_5.0\Engine\Binaries\Win64\UnrealEditor.exe" "C:\Users\Nanako\Documents\Unreal Projects\Nobility\Nobility.uproject" 192.168.0.20 -game -log
If something was wrong here, say the IP, would this just silently launch a local client instead? how can i tell if it actually connected?

[frank birch]

yeah, that IP is... curious

if you are conecting to yourself, 0.0.0.0 should work, wouldn't it?

[earnest jackal]

well its a local ip of course, the server and client are both just on this computer

[frank birch]

0.0.0.0 should be loopback

if everything fails, there is no place like 127.0.0.1

[earnest jackal]

okay scratch that theory, connection is definitely working, i launched a second client and it popped in

[sterile plaza]

is this the first time you're working/testing networking?

put an RPC or a replicated value on the game state and then log, will answer that

where is this bad log happening?

put a breakpoint there, check the net mode, etc

[earnest jackal]

kind of, yea, i'm new to this. Ive confirmed the connection is working
What appears to be happening here is that functions that are marked to run on the server, are running on the client instead.

[sterile plaza]

"marked to run on the server" ?

[earnest jackal]

    UFUNCTION(Server, Reliable, BlueprintCallable, Category = "Weapons")
    void EquipWeapon(TSubclassOf<AGunBase> NewWeapon);```
When i do PIE listen server, this function runs on the server as it should. 
But in standalone, it is running on the client

[sterile plaza]

listen server is client and server in one

[hearty thunder]

IS there a way to delay seamless travel like with the initial NetTravel ? (GameInstance::DelayPendingNetGameTravel)

[sterile plaza]

1p listen server? will appear like standalone in this situation I believe

I would use "play as client" to test this stuff.

[earnest jackal]

2 player listen server, it works as expected for both of them

[sterile plaza]

My work flow is:

• develop and test with play as client to make sure clients are getting all their info over the network and everything the server knows about them is across the network (been burned by "host" cheating and grabbing server stuff directly)
• test standalone to ensure it works
• test listen server to ensure it works

the last two steps are necessary generally because OnRep isn't called in C++ for servers, so if you want to do something on the server when a property is replicated, you have to call it manually

Networking is one of those areas where I find being as strict and explicit as possible is good.

[earnest jackal]

alright everything is working normally with play as client too. The only situation the problem is ocurring is standalone clients connected to a standalone server, which i'm launching from a command prompt as detailed earlier.
What could be different about this situation that is making a server function run on the client

[sterile plaza]

this is not exhibiting in PIE? this is only standalone builds?

where you're connecting manually?

[earnest jackal]

correct, only launched through console.
And I have confirmed that the clients are actually connecting, they can see each other

[sterile plaza]

They're connecting, but a server rpc is logging on the client?

[earnest jackal]

yes that is what is happening

and it is not logging on the server, just to be clear

there is another problem, ive got a moving platform, no client owns it. And that thing just vanishes completely on a standalone server, no idea where it went

looking through the server log, do any of these seem like a problem?
https://i.imgur.com/3dXtR0s.png

https://i.imgur.com/Zm1ZXeE.png
perhaps these are also related

but i feel like missing assets would cause a problem in other situations too, no? The gun works fine

[sterile plaza]

I like to clean up errors (and warnings if you can stay on top of them) before investigating issues as they can often hide the underlying reason.

But no, I wouldn't expect any of this to be the cause

although that looks like maybe you've got some blueprints that aren't compiling

what actor are you calling the RPC on?

[earnest jackal]

its compling just fine. I did in the past, change a function which caused it to stop compiling, but i fixed that earlier this week and its been fine since

The player is calling the rpc to spawn and equip a gun for themselves

[sterile plaza]

GunBaseBP compiles if you open and compile it?

[earnest jackal]

it does indeed

I am attempting to paste code here and its giving me an error
https://i.imgur.com/gFkDM1Z.png

so here is a picture of the two relevant functions
https://i.imgur.com/Kt0tjo3.png

cycleweapon is client, equip is server

[sterile plaza]

Can I get the declarations of those functions?

[earnest jackal]

output from the log of the client when i move the mousewheel
https://i.imgur.com/EwJysSC.png

[sterile plaza]

looks like you didn't connect

[earnest jackal]

    void CycleWeapon(bool bForward);

    //Call this to do the equipping of a weapon on the server
    UFUNCTION(Server, Reliable, BlueprintCallable, Category = "Weapons")
    void EquipWeapon(TSubclassOf<AGunBase> NewWeapon);```

[earnest jackal]

nope, connection is definitely working, i just launched a second client. They appear on each others screens

[sterile plaza]

"no game present to join for session"

what's that about?

[earnest jackal]

i honestly do not know, its not any log message that i put in

but there is certainly a connection here

[sterile plaza]

I assumed it's an engine log.

[earnest jackal]

this situation is quite baffling

[sterile plaza]

yeah

nothing's coming to mind

other RPCs are working then

can you make a simple server RPC on this actor, see if that works?

what about the player controller?
what about client RPCs?

[earnest jackal]

i do not know for sure that any other rpcs are working at all

they very well might all be broken

[sterile plaza]

In situations like this, I like to eliminate variables and test the most basic stuff. If that works, then I can start figuring out what about the complex case causes it to break. And if the basic stuff breaks, then you know it has nothing to do with how this function is set up or called.

[earnest jackal]

i think i am too exhausted to continue this for now, will try to bring it up again tomorrow, need sleeep

[frank birch]

@grand kestrel I think I found the solution to // This is a bit weird, but the actual function the adjust the client position doesn't get the MoveResponse, but single variable (https://github.com/Vaei/PredictedMovement/blob/main/Source/PredictedMovement/Private/Stamina/StaminaMovement.cpp#L196)

According to this other doc I found online: https://docs.google.com/document/d/1UO6Ww6Lfpti3YElVdo9uioTUtQJQ9CoSLvd9kF8hvJo/edit (at the very bottom of the doc) when the StaminaMovementComponent does SetMoveResponseDataContainer(StaminaMoveResponseDataContainer); in the constructor, it sets the private StaminaMoveResponseDataContainer as the variable that will always hold the MoveResponse.
Meaning that you should be able to get the MoveData from there and do the logic inside the Adjust position implementation 🤔

I am not sure of this tho 😅

[queen escarp]

https://gyazo.com/f648624f08471e86e423b7ed746e2df9

isent this all i have to do to servertravel :/ ? its in the gameinstance

[thin stratus]

Hm, I think so yeah, why?

[queen escarp]

hm so the problem was i think that u cant test it on viewport clients, has to be tested in standalone why idnno but

also now im running it on the GameMode

i thought u could run it on the gameinstace :/ ?

why is that

[rotund timber]

Hi all, random question, regarding Character Movement Component in Unreal.
Is it possible to have more than 1 attached to your character? (I'm wondering if I should create 1 custom one for my specific game needs, or if I could create smaller reusable movement components
e.g. Dash Movement Component that just has the logic to replicate dash/roll to the character to a direction in multiplayer while having the original CharMovComponent?)

I decided to go finally with C++ since BP is pretty buggy when having multiplayer logic with even 100ms latency (rubber banding etc)

any one has any experience in that? 😮 Appreciate any help!!!

[queen escarp]

@thin stratus

[grand kestrel]

That comment is from @thin stratus 's code, he'd understand it better. At least, I think it is 😄

[thin stratus]

@queen escarp You can use that in the GameInstance just fine as long as only the Server executes it. If you SEAMLESS ServerTravel then it only works in Standalone. There is a console variable to enable it in PIE, but it crashed for me last time I tried.

[queen escarp]

@thin stratus ah ok ok, then ill just test it in standalone then

[frank birch]

i managed to get seamless travel working in PIE but using the launch flag for multioss

[thin stratus]

@frank birch

ClientAdjustPosition_Implementation(
                MoveResponse.ClientAdjustment.TimeStamp,
                MoveResponse.ClientAdjustment.NewLoc,
                MoveResponse.ClientAdjustment.NewVel,
                MoveResponse.ClientAdjustment.NewBase,
                MoveResponse.ClientAdjustment.NewBaseBoneName,
                MoveResponse.bHasBase,
                MoveResponse.ClientAdjustment.bBaseRelativePosition,
                MoveResponse.ClientAdjustment.MovementMode,
                MoveResponse.bHasRotation ? MoveResponse.ClientAdjustment.NewRot : TOptional<FRotator>()
                );

That's what ClientHandleMoveResponse calls

It just passes all the inner stuff along

Nothing to grab the MoveResponse from or?

[frank birch]

SetMoveResponseDataContainer(StaminaMoveResponseDataContainer); puts it into the variable StaminaMoveResponseDataContainer

that variable is like a memory placeholder (I think)

[thin stratus]

Ah you want to grab the member variable

That might actually be true yeah

I didn't think that far tbh

Was kinda tunnelvisioning on the function and its param

[frank birch]

I feel like i've leveled up IRL 😅

[thin stratus]

However

Let me check something

// Deserialize bits to response data struct.
// We had to wait until now and use the temp bit stream because the RPC doesn't know about the virtual overrides on the possibly custom struct that is our data container.
FCharacterMoveResponseDataContainer& ResponseDataContainer = GetMoveResponseDataContainer();
if (!ResponseDataContainer.Serialize(*this, MoveResponseBitReader, MoveResponseBitReader.PackageMap) || MoveResponseBitReader.IsError())
{
    devCode(UE_LOG(LogNetPlayerMovement, Error, TEXT("MoveResponsePacked_ClientReceive: Failed to serialize response data!")));
    return;
}

ClientHandleMoveResponse(ResponseDataContainer);

Hm yeah that might actually work

I always thought this was a local variable

[frank birch]

queue in the party_manny

[fluid summit]

Hi! I don't know if anyone has played Black Desert online.
But they have this thing when a skill hits an enemy that the character gets a small delay.
But this is a mmorpg, how do you think they structured it so it does not affects gameplay?

I'm thinking on clientSide do a small time dilation or slow down. But how do you keep the Client up to where the server was without breaking the gameplay?

[dark edge]

It's probably some AnimationRate on the pawn

that is, the game isn't slowing down

just animations etc are running slower for a bit

[fluid summit]

wouldn't that totally desync you with the server?

Like the client is still registering that you are trying to finish an animation, while the server is ready for a new skill.
So your request will trigger a new skill and rubber band your character

[dark edge]

you predict all this

time is not slowing down for you

there's just a slowmotion effect that can be applied to anything

[olive kraken]

@fathom aspen Remember the issue of root motion + rotation not replicating (apparently arbitrary, but directly related with CPU, Network) on client?
I've been testing and found a hack, which is not ideal, but at least temporally fix it and points to the issue.
If you replicate the character movement component, the rotation + location on client will always work. In fact, you can see that the old offenders that stopped to be sync have a tiny server correction (since replication is fighting with client).

What I'm doing is comparing the server-client location delta, and once a threshold is reached I start replicating the movement component as a fall-back.

[fathom aspen]

Hmm this is definitely odd! Like what does replicating the CMC has to do with this?

[olive kraken]

I think is related with this:

Storing Replicated Movement Information
When Actors replicate movement, they do not replicate their transforms directly. Instead, all Actors maintain a replicated variable called ReplicatedMovement, which uses the structure FRepMovement.

The boolean bReplicateMovement, represented by the Replicate Movement variable in Blueprint, flags Actors to store movement information in this structure and replicate it to clients. When a client receives updates to ReplicatedMovement, the RepNotify function OnRep_ReplicatedMovement unpacks the stored movement data and performs updates to the Actor's location and velocity accordingly.

Neither ReplicatedMovement or its OnRep are accessible inside of Blueprint, but OnRep_ReplicatedMovement can be overridden in C++, and ReplicatedMovement's replication conditions can also be overridden in GetLifetimeReplicatedProps. This enables you to customize how movement replication behaves in C++ based Actor classes.

When you replicate the CMC

I think you have two groups of variables fighting

the struct of the FRepMovement

and the actual location translation of the component

[fathom aspen]

CMC used to be replicated some time ago, and they disabled replication at some point. So if you guys are using a custom source build, and a bad commit integration happened, then this might explain it

I totally forgot to report back, but what fixed my issue was the commit they did for 5.1.1

The one you reported and they fixed

[olive kraken]

Ah, there was another bigger one with root motion on top of rotated actors, that was fixed 100%

this is one coming from almost 4.27

or 4.26

and happens in network saturation, or cpu usage

I tested in Vanilla + GAS

and if you force the server machine, it can start happening

[fathom aspen]

I see, yeah that was my assumption since the corrections were being observed only by the third connection, but still shouldn't the network be saturated for all connections equally? Which is something I didn't dig deep into as that commit again fixed my issue

But in such case, I wouldn't call this a bug then

If this happens in a saturated environment, then optimize your network bandwidth 😛

[olive kraken]

maybe is not network saturation, but CPU use.

the bug is not losing sync, but being unable to resync back

[fathom aspen]

I would vouch for the former, but yeah either one, optimize...

[olive kraken]

Indeed. Still happening in decent network conditions and cpu usages, just less.

still, that "less" is a lottery can throw a multiplayer experience

so far, fall backs

but will keep an eye on the CMC struct

[fathom aspen]

Indeed, but I highly suspect that if you guys are using a custom source build, and you manually integrate commits, then you might have missed something at some point

[olive kraken]

Yeah, def will keep checking what is going on.

not using source build at this moment, 5.1.1

[fathom aspen]

Because I don't see many other people ranting over it, but well I couldn't see anyone else talking about that issue with rotated bases you reported a while back, so all options are there on the table

[olive kraken]

it's quite nichy

multiplyaer, rotation, root motion

[fathom aspen]

Good to see that you're still looking into it. I'm really curious to know how this will end 😄

[broken shale]

I’ve been having an issue with Vr hands getting locked in place while playing my Vr game in multiplayer… does that sound related to what you’re discussing?

[earnest jackal]

When doing play in editor with various kinds of multiclient testing, is there any way to give each client their own log window too?

[hollow eagle]

no

you can add client information to logs, or use tools aside from UE_LOG that add further context (like the visual logger). But there's no way to separate single-process multiplayer PIE UE_LOGs.

[olive kraken]

Hey @broken shale doesn't sound related, since I imagine your hand SM won't be using root motion.

[broken shale]

Thought maybe the same issue could be behind it… anyone have any idea where to start with this issue then? When playing multiplayer the other player’s hand becomes locked in place randomly. The touch controller still provides input, you can grab something for example, but the hand will no longer move around

This is in Vr using Ue 5.1

[broken shale]

There’s another issue that may be related… I have an object that shoots projectiles and when you tap it against certain cubes it adds 1 to ammo and destroys the cube using an overlap event. Works fine in single player but in multiplayer some of the time it will only perform part of the operation, ie it keeps adding to ammo while the cube is being touched and never destroys it. It’s almost as if it is only performing half the code and then detecting a new overlap and repeating even though there was only a single overlap event and the cube should be destroyed

[finite goblet]

Hello gentlemen , is there any out of the box way (or plugin) to get multiple servers sharing the same single multiplayer world instance in a load balancing configuration ?

[broken shale]

Would someone mind taking a look at these network profiles and help me understand what to look for and whether there is any indication that network issues are responsible for my character hand freezing in my multiplayer VR game? The larger file is from the PC that was hosting the game and that is the one where the player hand froze. The smaller file is the PC that joined the game and did not experience any issues

[thin stratus]

Out of the box probably not. UE servers are single instances and worlds. Plugin, maybe. There are some third party services like SpatialOS that hook into UE, but they also cost you a liver.
If you don't want to pay a lot, you might need to code your own. Either fully replacing UEs servers or doing whatever SpatialOS does

[finite goblet]

so either pay a liver or grow a second liver

[thin stratus]

Pretty much

[waxen apex]

So let's say I want to create a classic FPS like Valorant or Overwatch, and I need some sort of system that can handle accounts, player profiles, economy, matchmaking, etc..

What option would be the best? Steamworks? Playfab? Xsolla? Something else?

If you got an answer, plz ping me

[finite goblet]

what do you mean by "matchmaking"

[waxen apex]

oh shit, that was quick.

What i mean is

something like dedicated servers, where you get put into a server for a game

[waxen apex]

idk the correct terminology, but what i'm trying to say is when you join a game, like is TF2 or Overwatch

[winged badger]

common sessions from epic has a limited matchmaking support

[waxen apex]

but not "have someone host, then you join", the other kind

[finite goblet]

if you are only looking for a server browser kind of thing , steamworks got you covered on that .

But if you want to do some kind of evaluation and matching on player level etc then you will have to go with either PlayFab or write your own custom backend

[winged badger]

redpoint matchmaking plugin expands on that, and works well out of the box

[waxen apex]

what about accounts and account saves for economy and other stuff (say characters)

[winged badger]

EOS can handle all that

even if its still new and difficult to work with

[waxen apex]

so just to take stock.

EOS can handle accounts stuff, economy, matchmaking, etc?

[winged badger]

matchmaking... not fully on its own

i use both redpoint eos and redpoint matchmaking plugins, with a combined pricetag of about 600 euro

[waxen apex]

and redpoint deals with matchmaking

so like dedicated servers?

[winged badger]

you still need to find a place to host them, and handle docker/kubernetes/agones yourself

[waxen apex]

i see, so EOS, Redpoint + a place to host

[winged badger]

matchmaking with dedicated servers basically comes to dropping a beacon on the levels so they can be found

[waxen apex]

that's an option, anything else?

[winged badger]

check lyra for start

i saw some matchmaking code there

i don't think it works unless you're using sessions though

[waxen apex]

i mean, other services like Steamworks or Playfab

[winged badger]

not quite equivalent here

[waxen apex]

something like that

[winged badger]

steam is release platform

playfab is not

[waxen apex]

fair enough

[winged badger]

so you'd be using steamworks (albeit indirectly) anyways

[waxen apex]

does steamwork have dedicated server support?

like, it handles the dedicated servers

[finite goblet]

no

it only lists them for you

it won't run any of its own

[waxen apex]

damn

[finite goblet]

no service would iirc

you would need something like AWS

[winged badger]

https://docs.redpoint.games/eos-online-subsystem/docs/dedis_overview/

give that a read, should answer some or most of your questions

[waxen apex]

ok so, from my understanding:

• EOS, Redpoint + place to host
• Steamworks + place to host
• I am an idiot

so either way, I will still need a place to host

[winged badger]

you don't need to handle steamworks directly at all

[finite goblet]

Most of the services you mentioned will handle your data , server list and communication . The server will be your responsibility to run outside of those services

[winged badger]

EOS is platform agnostic, and its interfaces have specific implementations for steam, ps, xbox... etc

[waxen apex]

well, from what i know, I will if I want to use it's account data stuff

[waxen apex]

That clears up alot

thanks

[winged badger]

account data stuff you can use with just EOS, and no plugins

[waxen apex]

so they just offer a system, i still need a place to host it

[winged badger]

you do have 2 more options

community ran dedicated servers, so you release DS build and let the players host themselves

and listen servers (not recommended for competitive games)

[waxen apex]

listen servers?

[broken shale]

Does anyone have an idea of what ranges to look for in network profiler to determine if there’s an issue? For example my Vr character blue print has average size bytes 19.8 and 158 for bits

[waxen apex]

and waht about session

actually, is there something that explains the differences for the server stuff

[winged badger]

one player is both a host and a client in listen server mode

[waxen apex]

like something that just explains all the shit we just talked about

[winged badger]

this costs performance budget on host, and anti cheats are difficult

on the upside, it does not cost money

[waxen apex]

So my options are:

• Dedicated Servers
• Community Run Servers
• Listen Servers
• Sessions

[winged badger]

no

sessions don't belong there

[waxen apex]

and for the functions such as matchmaking, accounts, economy. That would require a system such as Steamworks, Playfab, EOS and Redpoint, etc.

[waxen apex]

wdym

[winged badger]

they are a method of connecting, not hosting

[waxen apex]

alrihgt, very confusion. Do you have some sort of guide that explains all this?

[waxen apex]

nvm, i figured it out

Alright, so lemme take stock once more. My options for hosting are:

• Dedicated Servers
• Community Run Servers
• Listen Servers

and for functions such as matchmaking, accounts, economy. That would require a system such as Steamworks, Playfab, EOS and Redpoint, etc.

Am I right?

[winged badger]

steamworks only works for steam and nothing else

not a problem if your plan is to release on steam only

but otherwise its a significant one

[earnest python]

how much do steam online subsystems cost for dedicated servers ?

[waxen apex]

From my understanding? You are talking about Steamworks, that shit that handles your account stuff and showing servers, you still need a place to host.

But it's free

you just need to sign up to be a Steamworks Partner

[earnest python]

thanks

[waxen apex]

yee

Some NDAs, SDAs and showing your billing stuff, then you in the clear

or something similar to that

but you aren't paying until you are putting your game on steam

[waxen apex]

fair enough

[earnest python]

by this you mean the 100$ publishing fee right?

[waxen apex]

yep

[fathom aspen]

Quick question: if we set a replicated property to the same value on server and on client before BeginPlay, will a replication occur for that property as part of the initial bunch?

Okay seems to be so

[warm wigeon]

Hey, I did the multiplayer prop lift and rotation, everything works in the editor, but when I export the game, the replication lags. What could be the problem. I do the processing on the server. prop has movement replication

[halcyon totem]

can someone please help? I am having a weird issue where my mesh wont show up on a dedicated server, I tested from the editor and noticed when ever the mesh does not show up I get this error

Hit limit of 96 saved moves (timing out or very bad ping?)

[jagged flax]

can we use steam sessions and steam dedicated servers both in a same game?

[frank birch]

Hello, it's me again 😅 I am learning the CMC, the saved moves, the customFCharacterNetworkMoveData(Client -> Server) and theFCharacterMoveResponseDataContainer` (Server -> Client).
What if / How wrong would it be to add non movement information to the CMC Network Data (Both ways) to piggy back on the CMC?
Say, in this thought experiment, I am making a shooter. one character wants to shoot a raytraced weapon and see if I hit another client character.
How I understood it, I can save the intention to shoot and the predicted target and send it to the server to see if the server agrees with me and get a correction if (due to lag or other things) I missed the target.
This post describes how to make a rewinding shooting component https://vorixo.github.io/devtricks/simple-rewinding/ instead of piggybacking off the CMC.

So... should one ride the CMC as far as possible or is it better to learn from it and spin your own predicted/corrected replication component? 🤔

(this is not what the AShooterWeapon does, Which is bugged in it's own right as Jambax explained and this post immortalizes: https://vorixo.github.io/devtricks/shootergame-vulnerability/)

also, what if there was a component that has all the replication/correction logic of the CMC (saved moves, timestamps, corrections, etc) but no implementation on the movement. Like a framework...
Is that the fabled abandoned replicated component/plugin?

[broken shale]

I’ve been having an issue with my Vr game in which the player hosting has one or both of their hands lock in place. It still generates input (you can move with the thumb stick and grab) but the hand mesh just floats in the same spot and can’t be moved. Any idea what would contribute to this or best way to go about diagnosing? Also having a possibly related issue where cubes that add to ammo on overlap and then are supposed to be destroyed just keep adding to ammo while touched without disappearing

[icy jetty]

Use breakpoints and select debugging objects to find what is failing

[tardy fossil]

if i define a replicated variable using ReplicatedUsing = RepFunction, the RepFunction doesn't get called on the server right? is it bad to have the server call RepFunction() manually after setting the variable?

[glass orchid]

Whats the proper way to spawn a series of actors, and assign controllers to them without possessing them straight away?

basically i want to spawn in everyones selected character and only possess them when the match is ready to start

I was thinking of making an array of the spawned characters, (which are spawned on server) with each client's character being at the same index as their respective playerstate's index in the gamestate's PlayerArray.

Do the indices stay the same on the server? assuming no player disconnects

[broken shale]

Is that a response to my question? If so, where would I place the breakpoints? I’m not sure where the bug is coming from, only that it’s causing the hands to lock up at random points during a multiplayer session. I don’t think I can check that in editor because it only happens when there are two players actively playing

[icy jetty]

It is. You can put the breakpoints within the event that causes the hand to move after input. You can go to the 3 dots next to the play button and change players to 2, to open 2 different windows

If it happens randomly, you may need to just select the debugging object and watch the flow as the game runs, so as to not have to constantly play through a break point

[broken shale]

How do you select the debugging object? And to simulate network conditions would I need to toggle launch separate server and/or enable network emulation?

[icy jetty]

There’s a drop-down within that same row. Start the game and select the object, be it an actor or a controller, wherever your problem code is. If you have a host and a join setup, then you just need to run it and host in one window, join from the other.

[ruby lodge]

Now this is kind of an emote that i set in my character bp. I call morphOnServer from my widget BP. Now the set morph target is working etc. The only problem is with the mood set variable. It is always set for both. So if i make a morph target and it goes through the branch as true it is set to true for both

Why so?

[warm nest]

Hey, i'm starting to make a little multiplayer game, so i install the Advanced steam session plugin for UE5.1.1, and since i installed it, i can't save anything, i get an error : Failed to save "..." try again or continue without saving, something like taht, anyone has an idea ?

[broken shale]

Do you have a second copy of unreal open?

[warm nest]

No i already check

It's because of the plugin, when i disable it, it works fine

[frank birch]

CPP and blueprint have different behaviours
Iirc cpp doesn't call the rep notify on server and blueprint does

[winged badger]

thats because BP is masquerading a property changed callback as replication callback

[solid wave]

Hey, i have problem with moving the AI multiplayer. I just call MoveTo on behavior tree and it works on server, if there is no clients. So AI moves to location thats it. But when i launch with server and a client, AI doesnt move at all on the client OR the server. BehaviorTree runs to MoveTo and AI plays walking animation but doesnt move, destination is correct also. Client also plays moving animation but just jitters a bit more. I just dont understand what can cause it, as if it would be replication problem, it should atleast move on the server. How da heck just spawning a client can prevent AI from moving on Server also.. Thanks for any ideas if u have some

[winged badger]

2 reasons:

AI_MoveTo or SimpleMoveTo?

2nd doesn't replicate movement

or NavmeshWalking movement mode, not replicated, so AI would be falling on clients, need to set it up from say, BeginPlay on their CMC

as navigation mesh is about 30 UU above the ground

i also recommend an approach where you spawn MoveTargetActor for each AI

then you just MoveTo that Actor with GoalTracking enabled

and then you teleport the MoveTarget around when you want them to move, simplifies BTs significantly, as its super easy to do stuff like move and shoot at the same time

[winged badger]

this you need to do just once, from outside the BT

[solid wave]

Hmm.. I still just dont understand how this would block Moving happening on server also.. As i told, If i only run it server only, it works. With 2 players , listen server and client, its not working on server or client. Shouldnt the server be correct and doesnt care about whats happening on the client

Im using AI_MoveTo, AI collision is hitting the navmesh whole time and movement is replicated, but if there is a client..MoveTo wont work anymore, so confusing as i would expect it still moves atleast on the server

[thin stratus]

That's actually not that needed anymore. Since Lyra they improved the MoveTo task and you can goal track locations with it now.

Previously it was always finishing the move to location first before you could update the path, so the MoveTargetActor was more or less needed for moving target that aren't actors.

[winged badger]

still simplifies BTs as the move doesn't need to be an async task in BT

[thin stratus]

I worked with MoveTargetActors in internal projects and The Ascent and that was in no where simpler than just using the MoveTo Task

But maybe that's subjective

Good to know about both then

Also not sure why Towwi's movement would break on the server

NavMeshWalking not being properly set is indeed an issue, we had that too. Think we also set that on BeginPlay of the CMC

[solid wave]

Aight, i shall take a look on NavMeshWalking! Thanks both

[frank birch]

bump on this:

how far should I stretch the movement component replication and what downsides are obvious from this stretching? 🤔

[queen escarp]

https://gyazo.com/6b88732c113e6cd4fc4a72c7555a92c0

why do i always get error "trying to access none" trying to read property Callfunc_GetWidget_ReturnValue_1

[icy jetty]

Depends. It usually means your target returns None

[queen escarp]

yeah but i dont get WHY 😮

[icy jetty]

So it could be where you have it placed in your blueprints, or any number of things

Like for example if you try to run this code before that widget exists

[queen escarp]

its a component

on the character

that is a "widget"

[icy jetty]

Put a breakpoint on either of those visibility nodes and then hover over the target input pin when it stops

Not sure about component side, but widgets usually require a create widget node to initialize

[queen escarp]

you know what

i put a 0.01 delay and now it worked, so i guess it was trying to access it before it was created x)

thanks 😮

[icy jetty]

Np

[queen escarp]

also another question

https://gyazo.com/15822a7f96e46e35c332014ff0fef281

getting exactly the same error from this

im creaing the mode widget at event begin play and then when im overlapping box a play the "show mode"

[icy jetty]

I don’t see a begin play node, are you calling that custom event both on begin play and elsewhere ?

To show the widget, use the add to viewport, to hide it, remove from parent. Your create widget should only occur once, on begin play

[queen escarp]

yeah

im only creating it once tho

the "create modewidget" is called from an event begin play once

[icy jetty]

But that also calls add to viewport

[queen escarp]

ok so add to viewport is better

[icy jetty]

Well, if you need to toggle it on and off during runtime, you should probably have it in a separate event, that is

[queen escarp]

well same error when using viewport instead... so freeking annoying

i mena it "works" as it should but the error always pops

[icy jetty]

If you’re looking to bypass the error, use isValid? in front of the node

Just keep in mind that masks the error, rather than fix the root cause

Idk if you can create the widget in the construct graph, but that could be a solution if you need it created before runtime

I haven’t tried it myself so idk if it allows that

[queen escarp]

in this case shouldent matter, im fiering the show widget alot later

oh well nevermind that

now to a more pressing matter 🙂

[balmy drum]

Hey everyone, I’m pretty new to networking for unreal so forgive my naivety if my question sounds silly and/or wrong.

I’m currently using general movement component in lieu of character movement component for context. general movement component implements a network clock that is more accurate than character movement component.

I have an AI zombie in my world that is controlled by an animation blueprint which dictates what animations the zombie should play, and blending various other animations together. One of the state machines in my blueprint is responsible for locomotion and thus has an idle state which contains an idle animation sequence player.

The issue that is currently plaguing me is that the idle animation is not synchronized between the server and client, and this is causing line traces that hit on the client to miss on the server. I wish to keep the animations between the server and the client so that the collisions are synced on both sides when a line is being traced. Does anyone know why this happening? It seems my client time is behind the server time. How could I update the animation to catch up to where the server is in terms of animation time?

[queen escarp]

@icy jetty im trying to implement a basic combat floating text when hitting/getting hit but i cant get it to work on MP,

[icy jetty]

Are they replicated properly ?

[icy jetty]

RPC is usually the culprit with this stuff

[queen escarp]

im guessing thats whats wrong

it works in "solo"

[icy jetty]

I think multicast does both clients and servers

[queen escarp]

erhm i just realized their both playing the same event 😮

[icy jetty]

So you shouldn’t need 2 of those

Yep

[queen escarp]

so i dont need to run it on server ? only multicast or viceversa ?

[icy jetty]

Yeah. Multicast sends to server + all connected clients

[queen escarp]

yeah im os dumb, it works now hence i removed the cast to server but it would have worked before but i used same event so i was just being dumb 😛

awesume

however.. hm how can i make it so it only shows on the client that "dose the damage and the client recieving the damage"

hmmm

then i cant multicast or multicast with some conditions or ?

tips ?

[icy jetty]

Multicast Delegates might be what you’re looking for, but I think you have to use C++ to expose them

Search Multicast Delegate see if that’s a real node, I can’t check right now

[queen escarp]

ok like this ?

[winged badger]

delegates don't have anything to do with networking

[queen escarp]

ok zlo do you have a tip then ?

or tbh

do i even have to multicast it :/

[winged badger]

setup client RPCs on Characters

and call it for the involved characters

[stoic lake]

Hi, I'm trying to get level instancing to work in multiplayer but am not sure how the replication for this works.
Should the instance be created on the server only, and set the visibility through a multicast, should everything be done for each client, or should everything be done on the server only?

It's working for the server but not for the client currently

Just figured I didn't set the multicast to multicast, however when I do and launch the game I get the following error:

[cosmic yoke]

hello i'm running into this issue (https://issues.unrealengine.com/issue/UE-78453), where sometimes my OnRep_Controller on the client doesn't get called when the controller it's set to nullptr by the OnRep_Pawn. Any ideas how to fix this?

around 50% of the time it only triggers on the authority

the other 50% it triggers on authority and the client

[queen escarp]

@winged badger how do u mean ?

[jolly siren]

@fathom aspen You are guaranteed the value in PostNetInit not in BeginPlay

[ruby lodge]

Could someone help me with my respawn and character selection issue i am having? No matter which character i select and save it in the game inst, i always have the same character of the host of the session. Also when one character dies all players see the death ui and then also all players respawn

I would really appreciate any help! It won't even take long, i followed a few good tutorials and all other replication stuff is working. So it's probably minor things

and spawning happens in my game mode

[dark edge]

that HAS a widget

the component is not a widget

it has one

and can display it in 3d in the world

[queen escarp]

truie

[ruby lodge]

and this is what happens when you select a character before joining. I really don't know why it's not working.

[fathom aspen]

I probably didn't word it quite good, but in my case I was wondering if a replicated property that was unconditionally set in PostInitializeComponents for example to a value of 10 (so its set on both server and client), will be replicated when the initial bunch gets sent?

The answer should be quite interestingly yes, even if it makes little sense!
Basically when a property gets checked for replication, it gets compared against the shadow state of the actor, and in our case, the shadow state is the CDO state. The value of the CDO is 0 in my example, and since 0 != 10, replication will occur. Basically the engine is not smart enough to realize that the client has that value already, and that there is no need to send an update 😄

[jolly siren]

ahh gotcha, yeah that's different than what I thought you were asking. That makes sense though

[crystal arch]

my first glance is that your code is running on server and passing "self" as the player pawn owner. that could be why they're all behaving as if they're owned by one player.

[ruby lodge]

now but they are spawning correctly, so it's not like the host is spawning again when a client joins

[crystal arch]

what do you mean more specifically?

[ruby lodge]

when the host creates a lobby and joins he spawns as usual. Now if another player refreshes and then joins the lobby of the first one, he spawns correctly too (besides having the wrong character). But i mean the host doesn't respawn again unlike when someone dies where all respawn

[crystal arch]

not sure if i've seen multiple problems in your description or not

on the server side respawn i'd try passing in GetPlayerController, but set the player index parameter to 0,1,2,3 (to match each connected player)

and see if they spawn individually

its not super clear to me how your CharSelectionGameInst, sets the "current character" it's providing

in your secon dscreenshot

get game instance > charselectiongameinst > character > spawnactor

that's the same character var each time, idk if it changes elsewhere

the "easiest next step" would be to make an array of character vars on your charselectiongameinst (one character var for each connected player) and then use the player index number (0,1,2,3,ect) to refer to their personal character var, when you respawn them

but there's probably a more elegant, better way to do that long term

wow yeah sorry, i missed your third screenshot, AgeBPArray is "trying to be" your character array, your GameInst class should have a similar struct and dole out one character for each different type of character that is requested by your spawning player

[ruby lodge]

nah that's the arry that holds all different characters

not the players and their choices

theirn choices are all stored in one game instance variable which is not an array

i thought the gameinst doesn't get replicated thus each player has an own or not?

[crystal arch]

i underestimated how much imagining people's code over the internet, roasts my brain lol, i need to take a break soon

i need to say a couple lines

each client has their local copy of data, like gameisnt or whatever

but when the Server does something, it's gotta pull from its server copy and assign it to each player

[ruby lodge]

if you want we can ujump to dm and fix this in like half an hour if you have experience with this? I don't think it's huge issues, just minor ones cause the code isn't that big really

[crystal arch]

and their clientside version gets updated

[ruby lodge]

i can then send you everything you need

[crystal arch]

i cant promise anything, but sure

[ruby lodge]

alright

[dawn ledge]

I can replicate pointers to UPrimaryDataAssets right?

or TSoftObjectPtr<UPrimaryDataAsset>?

[hollow eagle]

yes

[amber barn]

hi guys, bit of a general architecture question, im using the third person character & controller that comes default but also need to make some changes (making a top down wasd mouse rotates the character game) and i need to capture local player mouse input and rotate the character.

the default character and controller are backed by heaps of great network code, so ive created another class top of them to do various things but..

for the mouse rotating the camera in the player controller do i just rotate on the server and replicate it across the network or should i hook into the player controller that exists already re-use some stuff?

[ruby lodge]

how do i cast correctly to the player controller? Here when the client dies only he respawns but when the server dies all players respawn

[quasi tide]

Well, for starters - you really shouldn't use the level BP

Secondly - using GetPlayerController kismet function is bad practice in a multiplayer game.

To answer you question - you are casting correctly.

Whether it's the actual controller you want - that's a different question really

[dark edge]

I think you're mixing up Unreal's Controller and Unity's concept of Controllers

You can do everything in your pawn if you want

pawn can handle input

I would start by making your custom pawn a subclass of Character, not 3rdPersonCharacter (which is sort of crap)

the great network code is in Character / CharacterMovementComponent

[amber barn]

Ahhh ok thank you I will try that, yeah I just wanted to make sure to reuse the character movement code cause of all that nice network stuff

[hearty thunder]

Is there a way to "unlock" the transition map ? I noticed beginplay and ticks doesnt works on it, and I cant play an animation sequence in a skeletal mesh too

[stoic lake]

If you update a variable on the gamestate from the server, and then access that same variable from a client using a run on owning client RPC, will that variable automatically be up to date?

[chrome bay]

no

No guarantee of execution order between receiving properties and executing RPCs

[ruby lodge]

how do i giv ethe actuall controller that i want ?

[quasi tide]

You need a reference to the pawn and then call the Get Controller method from that

[ruby lodge]

like this?

didn't work

[quasi tide]

You don't need a get owner call

Just pull off from Other Actor and cast to pawn

Then get controller

Don't make it a pure cast

So you can add a debug message

[ruby lodge]

like this?

[quasi tide]

Sure. Now add a print message if the cast fails

Again - you really don't want to be using the level BP either.

[ruby lodge]

where else can i test for actor overlap?

[quasi tide]

You can just have a regular ol' volume

I don't recall if the Level BP is replicated or not. This could make it more annoying to actually know which machine is executing the code.

You can throw a HasAuthority check in there. It might work. But again - I don't remember if server creates the Level BP or if each client creates their own.

[ruby lodge]

does it matter really if everything works?

[thin stratus]

LevelBP should kinda be avoided either way :P

[ruby lodge]

OK now respawning is working. I literally worked 7h yesterday with 2 other people only on this

i mean i am not completely against putting it in a different bp but i fell like testing an overlap should one ly happen if it's in that exact level

i can't imagine a case that is more worthy of being put into the level bp than this lol

[ruby lodge]

because of this. A HUGEEEEE THANK YOU @quasi tide

[quasi tide]

Just create a BP actor. Add a Box Collision to it. Then put this logic in there. Expose the sound as a variable. Now you can use this logic in many different places.

[ruby lodge]

lol okay, might do that later on haha. Thanks

[ruby lodge]

Can we by any chance hop to dm? I have a few tiny problems like that one too that i haven't fixed for days now. I feel like you know what you are doing 😅

it's like nothing too complex. Not that much code tbh

like 2 screenshots beside the one you have already seen from level bp

[quasi tide]

Nah - better to ask in this channel

[ruby lodge]

Ok idc really i just thought it would be easier to overlook it there

SO. The level bp is calling respawnPlayer

which is a Player controller function.

can you read this?

that's basically the important part now inside the player controller

now the problem i have is that it is giving me some errors when trying to create the WBDeath

i will screenshot it wait a min

btw spawn player which is called in SR_SpawnPlayer is in game mode. This is it's code:

In a bit we will get to why the clients always have the same character (which is saved in gameinstance) as the server

[thin stratus]

Well, why would they get different characters

If you just have the Server's GameInstance variable :P

[ruby lodge]

this is what happens when the client dies right now. He respawns instantly and can move already but is still seeing the death ui and after the timer runs out he respawns again

[thin stratus]

You can't add the Widget to the Screen on the Server if you only create it on the Client

There is no reason for it to magically be a valid reference

You gotta make that call on the Client

[quasi tide]

There is so much to unpack here 😅

My best advice is to read the pinned posts really. Especially the network compendium

And you need to keep a mental model of what machine the code is executing on

[ruby lodge]

how so? I watched a few vids on basics of multiplayer etc and the respawning is working besides the ui stuff so idk the reason really

below the screenshot i am also handling the rest of the ui from the player controller because the youtuber said that would be best

[thin stratus]

The Error says that you call AddToViewport on a null pointer

[ruby lodge]

and it's working just fine

[thin stratus]

So the "WB Death" is not valid when you call RespawnPlayer

[ruby lodge]

only reason could be that at the top the branch is false

[thin stratus]

An since you create the Widget on BeginPlay, the only reason would be that you call RespawnPlayer on the Server version of a Client's PC

[ruby lodge]

so it's not the local player controller

so do you mean that i should set the respawnPlayer event to run on server?

[thin stratus]

No

[ruby lodge]

lol

[thin stratus]

Idk what RespawnPlayer is being called from

[ruby lodge]

that level bp

i first showed y'all

[thin stratus]

But if you call that on the Server version of a Client's PC, then the Widget will be null

WEll

The image you posted of the LevelBP

Shows that you aren't limiting this to anyone

The Overlap will happen on every player

[ruby lodge]

only the one that overlapped no?

[thin stratus]

That Character exists on every Player though :P

If we both play together, and you run into an Overlap, then I see your puppet Character also run into that overlap

We both get an Overlap even for that Character

Including the Server if that is a Dedicated one

[ruby lodge]

Big OUF

no it's a listen server

[thin stratus]

Yeah

1. You should limit this to SwitchHasAUTHORITY
2. You don't need SpawnPlayer to be a ServerRPC
3. You need to tell the Client that they are dead, since this all runs on the Server

For 2. idk if you use SpawnPlayer anywhere else

[ruby lodge]

yep, in beginplay of level bp

to spawn the players

[thin stratus]

Then it still doesn't need to be a ServerRPC

[thin stratus]

Ouch

That's just bad

[ruby lodge]

although i donÄt like the index 0 there too lol

[thin stratus]

BeginPlay calls on everyone that has an instance of that Actor

So every player

The Server should be the one spawning all Players

[ruby lodge]

yea it is

the gamemode does the spawning

[thin stratus]

A player should not ask the server to spawn (unless via some key input or UI)

Then why is that call there in the level BP? :P

[ruby lodge]

they call sr spawn player which is in player controller and that calls the spawnplayer in gamemode

[thin stratus]

Yeah bad

[ruby lodge]

the actual spawning happens in gamemode

[thin stratus]

Absolutely redundant

[ruby lodge]

yea sorry lol, how do i know that the youtuber is wrong lol

bro has 12k abos or so

[thin stratus]

The GameMode already spawns your Character via the Default Pawn

And even if you need some custom logic

You can do that in PostLogin

[ruby lodge]

no i don't set the defaultpawn

[gritty warren]

that's common, many youtubers repeat poor implementations

[ruby lodge]

that is a bad approach setting a default pawn

[thin stratus]

It's not, it depends on your game

[ruby lodge]

my game starts in main menu abnd you can select a character to play with before joining the actual game

thus it makes no sense to set a specific default pawn

[thin stratus]

Yeah you can use the PostLogin function in the GameMode to kick off all of that

LevelBP is shite

[ruby lodge]

also i don't want a pawn to spawn in the main menu

[ruby lodge]

i have some stuff there too already

[thin stratus]

Yeah and?

[ruby lodge]

this

how can i use this to fix the rest 😅

[thin stratus]

PostLogin calls per Player on the Server

If you really need that shitty "I saved my Character in the GameInstance to move it from MainMenu to Server" then you can do a ClientRPC on the PlayerController here, followed by a ServerRPC that passes the saved Class along and then calls spawn with it

[ruby lodge]

i think that's almost what i am doing right now

[thin stratus]

You are using the LevelBP's BeginPlay and you aren't passing the class along :P

[ruby lodge]

how else would you save the selected character? The GameInstance does not change, that's why in most tutorials they use that

[thin stratus]

I wouldn't use BP for Multiplayer to begin with

In C++ I can specify a String that the Client can send along when connecting

Relatively easily actually

[ruby lodge]

the class is being set in the widget bp when you select the specific character. Then it is spawned in gamemode . THe variable is the character one

[thin stratus]

Which could be an ID that identifies the selected Character

[thin stratus]

Well yeah

You are spawning the same character for everyone here

[ruby lodge]

yes but i want to. As long as this is possible in a not too hard manner then this is what i am aiming for as i am a 3D designer and not a programmer or anything like this

[thin stratus]

Sure, I won't stop you :P It's a terrible idea to do Multiplayer without C++, but everyone learns that the hard way

Either way, you gotta send the Class to the Server

Cause in that Screenshot you are using the same Class for everyone

[gritty warren]

Cedric, I like the way you give advice and id like to ask a question regarding some basic stuff, but ima wait as to not interrupt this convo

[thin stratus]

Given this function is called* on the Server

[quasi tide]

Just ask

[thin stratus]

This is always the same value that the Server Player saved

[ruby lodge]

well that makes sense yes

how can i do that differently? I made the wrong step that i did everything for single player and now want to switch it over lol

[thin stratus]

Let's assume you stick with your LevelBP, you have to change the "SpawnPlayer" RPC to also take in a Character class

I can't write with mouse

[ruby lodge]

that's the player controller

[thin stratus]

The pink line is meant to be an additional "Character Class" pin

And the GameInstance part is meant to be what you are doing in the SpawnPlayer function atm

[ruby lodge]

yes haha i got what you mean

[thin stratus]

Again pink being an additional Character Class param

The "GAMEINSTANCE" block might be better behind the Delay. I didn't really pay attention to where I drew, just needed space

[gritty warren]

alright,

I'm trying to replicate control rig functionality - two separate rigs, two separate goals, encased in two separate gameplay abilities. The control rig is driven by values used in their respective replicated ability, and the server is able to pick up the values but this does not get sent back go the clients

I am so sure this is a super basic question, but alas, I am here

[thin stratus]

Reading "Replicated Ability" (if that is a GameplayAbility from GAS) already makes me shiver

[gritty warren]

why?

[thin stratus]

Cause 99% of a time, that's redundant

None of the Abilities in The Ascent are replicated for example

[gritty warren]

I replicated it by just using the little drop down menu thing in the class defaults, nothing inside the ability itself

[thin stratus]

Neither did we replicate anything in the MOBA client we are working on

[quasi tide]

A MOBA?

Is this an inhouse game or just contract job?

[thin stratus]

Contract shizzle

As if I would put my team on a MOBA

I have a soul

[gritty warren]

so how did you network the abilities if they're not replicated?

[thin stratus]

The Ability would need to actively be marked as Replicated

[ruby lodge]

so the game Instance should not be a pure cast?

[quasi tide]

Either way - I don't really understand the question. Are you having issues reading the values? Issues sending the data?

[thin stratus]

There usually is no need to network anything

Activation is predicted

So it runs on Server and owning Client

ASC RPCs handle that

VFX and other stuff is handled by GameplayCues

That replicated on their own and are more lightweight

[gritty warren]

yeah but there's a little box in class defaults that says "replicated?"

[thin stratus]

GEs are predicted and replicated via the Attributes

[gritty warren]

and that's what you use to set that, right?

[thin stratus]

Individual GAs are not replicated for us

Aka they don't have replicated variables or RPCs in them

[gritty warren]

I'm not sure the problem - Server gets the info, but no clients do

[thin stratus]

Did I ever say anything about that? :P fwiw I almost never use Pure Casts

[thin stratus]

ControlRig of a Character?

[ruby lodge]

nah but you said like i was handling it in spawnplayer function and there it was a pure cast

[gritty warren]

yes

[thin stratus]

Ah, yeah I don't mind. I don't use Pure Casts, but that's up to you

[thin stratus]

So not sure what exactly you are animating here but if this is anything like a normal AnimationBP setup, then any variable that needs to replicate for animations should just be in the Character Class. The GAs can set those if needed.

And if your GAs are predicted, then the Rep Condition could even be set to skip autonomous

[quasi tide]

Animations read data from the actor. So you just update the actor with info and the animation stuff reads in from that.

[gritty warren]

Ah I see!

What I have are some properly replicated attributes set up in C++, and I use those as boundaries for a random number generator to obtain a recoil value for some procedural recoil (I recognize this is bad, as I should be involving the random seed somehow but that's a problem for another day)

so the actual value fed in needs to be replicated

[thin stratus]

It's best to see what happens with your GAs and then choose the best place to put your values

Your Player will press a Key

That Key will activate an Ability predictively (at least preferably)

That runs on owning Client and Server

Owning Client can predict any recoil here

Server can do Recoil too then
If you need Recoil on Simulated Clients you can send the require Data for the Recoil via GameplayCue

And then just handle the Recoil in the GC directly

The GC will be predicted on the owning Client and replicate to Simulated Proxies

[gritty warren]

Hmm that's super interesting. I've done some really basic gameplay cue implementations, but as you're typing that, it definitely seems correct

[thin stratus]

Although it might not be the best to put the Recoil code that actually modifies aim into a GC

But just the result of it data that then spawns effects

[gritty warren]

its that last sentence that idk how to do lol. my whole ue5 experience has been in the context of GAS, and im a noob otherwise

[thin stratus]

Simulated Clients wouldn't need to know about the Recoil data that modifies the weapon shot

But just the result of it fwiw

But I'm sure you have a better idea of what is visual and what is gameplay in your setup

[gritty warren]

I can run the recoil number generation server side, produce the GC, send it back while also predicting it locally

[thin stratus]

if in doubt, replicate it through the Character

We have a lot of state stuff in the Character, like "CanWalkThroughPlayers"

[thin stratus]

That would be the correct approach, yes

[quasi tide]

You'll end up just shoving a lot of stuff in the character or player controller honestly

[ruby lodge]

@thin stratus Alright now the character selection works perfectly as for now 🙂 Thank you very much! Now would you say i should change how i get this player controller on the left here?

[thin stratus]

There isn't really a way to change that here

I would not use the LevelBP to begin with

But you know that already

[frank birch]

by "Predicted" you mean that the activation happens both on local and then on server?
does the GAS have something to correct a misspredicted ability or is up to you? 🤔

[thin stratus]

The Activation yes, and Side Effects like GEs, but anything else is up to you

[ruby lodge]

yes okay we can focus on that now. Regarding the actor begin overlap functionality with the respawn we said I can make an own bp for it

what about the stuff here in beginplay?

[thin stratus]

Yeah, keep in mind the Overlap happens on "everyone"

[quasi tide]

That's why you make the collision trigger only be spawned on the server 🧠

[frank birch]

if a client calls ActivateAbility does it automagically rpc? or does the client need to manually rpc the server for that activation? 🤔

[thin stratus]

In BP only I would move to a

PostLogin on GameMode -> ClientRPC on PlayerController -> Get all Data from GameInstance -> ServerPRC on PlayerController -> SpawnPlayer on GameMode

[ruby lodge]

yes but it is working like this so i could most likely just copy most of it to the other bp i assume? (Regarding the overlap)

[thin stratus]

Automatically

If the Ability is set to predicted that is

+- terms and conditions

[thin stratus]

I guess, yeah

You will still have an issue with the Death Widget

[ruby lodge]

but where does i now say when to spawn the pawn as i don't want a pawn to spawn in main menu where the game initially begins

[thin stratus]

You'd need to limit the Overlap to a LocallyControlled Pawn

[thin stratus]

It might come to you as a shock, but you usually don't use the same GameMode for MainMenu and Gameplay :P

[ruby lodge]

what

that is a shock really

[thin stratus]

In a proper setup, you would have some base GameMode class that you can put stuff in that really every GameMode needs (usually very little of anything)

And from that you'd make a BP_GameMode_MainMenu

And a BP_GameMode_Gameplay

And then fwiw Gameplay can have more child classes for different GameModes

[ruby lodge]

now that is a wonderful option right there

[thin stratus]

Like traditional Deathmatch vs Capture the Flag

[thin stratus]

Yop, cause that also means that the majority of classes that the GameMode specifies will also be unique to each of those

Having a BP_PlayerController with a BP_PlayerController_MainMenu and _Gameplay

To have one spawn the MainMenu and the other handle Pause menu toggling

etc. etc. etc.

[ruby lodge]

ok now regarding this. FOr now do i just add a is local player controller with a branch after this for the death widget to work?

[thin stratus]

If you connect IsLocalPlayerController to that GetController node you will get accessed none errors

You are currently silently avoiding them with the cast

Cause the GetController will return null for anyone but the Server and the local player

So better is to call Is Locally Controlled on the Character itself

BP_Ape if that is your character

[ruby lodge]

yes

that is the parent class of all the ones you can select

[thin stratus]

Did you read the Compendium that is pinned to this channel?

Because that gets you very far if I may say so

And saves all of us a lot of repetitive Q&A

[ruby lodge]

no i did not but thanks for suggesting it! I will get into it in a bit

[quasi tide]

What in tarnations

[ruby lodge]

I like to have a fully functional example on which i try to understand why it is working

and idk there was such compendium tbh

[quasi tide]

#multiplayer message

I feel cheated

[thin stratus]

This doesn't seem to scroll to the correct message for me

Or it doesn't highlight it fwiw

[quasi tide]

That's because Discord is poop. Click it again.

[thin stratus]

Idk what you linked

[ruby lodge]

I must have overseen your message i am sorry

[thin stratus]

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

Please read this before you continue asking for help here

Would just be fair towards us :P

[quasi tide]

For Cedric because his Discord is actin' like Discord currently

[thin stratus]

It has a dark mode too ;)

[ruby lodge]

Oh that is def a huge plus haha

[ruby lodge]

Ok i guess that would really be fair. I was just eager to like finish this up to a point where it at least does work and then I wanted to clean it up after having a commit to github that has a working version at least. Now that a mod is helping me lol

cause only thing missing is really the death ui

[quasi tide]

My gripe with this approach is that it is annoying to switch the gamemode when opening the level. And I don't want to have different versions of the level saved as well, just to have different GMs selected 😅

[thin stratus]

No clue what you mean

You must be imagining things

[quasi tide]

https://tenor.com/1KoO.gif

[thin stratus]

Eh?

?game=CTF

Tada

[quasi tide]

Yeah - I know. But that is like 8 characters more than what I want to type.

[thin stratus]

But that's just part of your code

And the way to choose the GM for one an the same level

[quasi tide]

Yeah, I know how to switch the GM when opening the level and all that. I just find it annoying.

[thin stratus]

Fair enough

You probably never had to deal with a game that has 10+ characters

And your Designer telling you that all their Abilities have to support something new.

[quasi tide]

I reject this notion. I definitely have more than 10 zombies. I've gotten up to 200!

[thin stratus]

:P You know what I meant

[quasi tide]

(Jokes aside -I know what you mean though)

[thin stratus]

I always wanted to add that fancy debug UI stuff to UE

But there is already a plugin for it and then I lost interest

[quasi tide]

What fancy debug stuff?

[thin stratus]

https://github.com/sammyfreg/UnrealNetImgui

[quasi tide]

Oh - this is neat

[thin stratus]

It's especially nice to debug Servers I guess

But even with just launching it next to a Client or Singleplayer Game

To have Cheat Menus etc.

There is also this

https://github.com/segross/UnrealImGui/

But I think the one above has that more or less integrated

[quasi tide]

Sometimes I feel like I really should look more into ImGui - it's been really poppin' off lately

[thin stratus]

Yeah

[quasi tide]

How Jurassic 😈

[ruby lodge]

Bro that's a whole lecture haha but I love it. I am currently at Ownership

[frank birch]

I've tried to understand how to imgui... I failed 🙂

[ruby lodge]

OK so i have read it all now

took me about a little more than an hour and i skipped the c++ parts

[slow wing]

I have an actor that is NetLoadOnClient, when I run into relevancy range (150m) properties of the Actor class (like bIsHidden) are replicated, but properties I added to my subclass are not replicated. Replication of changes works fine when I am in relevancy range during the changes. The variable is set to replicate to all clients and has no condition. Is there any reason why new properties I added to my subclass might fail to replicate their values upon a NetLoadOnClient actor becoming relevant?

Worth noting I get my variable replicated fine if I set the actor to always relevant, the issue is purely with not getting the current server state the moment the actor becomes relevant (but only for my subclass properties, properties of the actor class work fine which is why I am super confused)

[ruby lodge]

i can't really follow you on this. Right now the entire Death widget stuff is handled inside the player controller inside the respawnPlayer custom event. Now what exactly does the character itself has to do with the ui? I.e. where shall i put the isLocallyControlled inside the character bp?

[fathom aspen]

Hidden Actors are not relevant to connections by default

Sounds like a relevancy criteria is failing

Check which one is it inside IsNetRelevantFor

[slow wing]

Wait, calling SetActorHiddenInGame affects relevancy?

[fathom aspen]

Yep

[slow wing]

That definitely gives me another avenue to debug via, I genuinely thought that was a rendering only modifier

[fathom aspen]

Actor becomes not relevant

[slow wing]

It's still odd that the hidden boolean will replicate but not my class property, I would have imagined in the tick where things replicate I get everything, but maybe there is some additional logic to handle the case where the actor is hidden

[fathom aspen]

You can change that behavior though if you override IsNetRelevantFor of the said Actor

[slow wing]

Thanks, I'll check that out then!

[fathom aspen]

Actors don't replicate atomically

So no, that's not a guarantee

Neither Objects really

[slow wing]

I figured that was more in the sense of "your properties can be in different packets" kind of thing, rather than only some variables being replicated on a tick

[ruby lodge]

I now moved the actor begin overlap to an own bp and it works fine, basically the same as before. Now reagarding the begin play i don't quite know what i should do here. The OnPostLogin is already happening on the gamemode so i have the first step done i think. Now regarding the rest i don'r really have an image in mind on which nodes to set up besides the ones i have already.

The last to steps are basically calling the SR Spawn Player that i have on the player controller so that is done too. It would be nice if you or someone else who understood this could give me a further explanation on what to do. Again, this is my begin play in level bp. Now the code after play sound 2d should be coded elsewhere

[fathom aspen]

But again why the level BP?

None of what you're doing has anything to do with it

Read through https://wizardcell.com/unreal/multiplayer-tips-and-tricks/#25-avoid-using-the-level-blueprint

It also mentions the ominous GetPlayerController(0)

[ruby lodge]

i just said that i want to move it from there

did you read my question

[fathom aspen]

It was not a question, but a note

[ruby lodge]

well i said that i want to move it and don't know how exactly as i didn't understand all steps Credric mentioned

[fathom aspen]

So I still don't know what your question was

[ruby lodge]

i just thought that because this is handling the spawning on begin play basically i will try to make an own game mode for the game level and there just put it into it's own player controller begin play

cause he also said that normally you have an own gamemode and it's classes for each part of the game

[fathom aspen]

BeignPlay of PlayerController indeed guarantees you a valid PlayerController

BeginPlay of Level BP doesn't

[ruby lodge]

yes

i mean it is working as for now but still

btw he also said that this isn't a very good way to handle respawn on collisions because it goes through all actors. How else can i code this?

i think he said something about switch on authority or so

[fathom aspen]

How deep is your knowledge of networking?

[ruby lodge]

not very deep

[sterile plaza]

is it as deep as your love?

[ruby lodge]

i am a beginner as you would say hehe

[fathom aspen]

Or what did you read about networking before you started with it?

[ruby lodge]

nothing is less deep than my love. YOu could say it's shallow

i watched kekdots tutorial series

[fathom aspen]

This channel has a handful of resources pinned that should get you up and running

[ruby lodge]

and read cedrics blog now

[fathom aspen]

Reiterate, and read other resources that it links you

For example the one I sent you above

It talks about Execution Filtering

It would be far easier and better for you to read it, than me writing it for you here 😉

[ruby lodge]

No because without working examples it is nothing more than words put together. I can't memorize all this, but my code doesn't get lost

After I have it working if there are still parts of it I don't understand I dive deep into it

[fathom aspen]

If that's your point of view of articles that are very well recognized by many, then I and many others here will show little interest in helping you

[ruby lodge]

Well it is not that I don't read them

I just read Cedric's Blog which took me more than 1h

But I can't tell you that I understood everything

That's why I need working examples

[kindred widget]

I read it three times.

And one hour is a drop in a bucket of the time you're going to spend understanding things.

[fathom aspen]

Every once in a while we have someone here that wants to make his game with the community, but every time it ended up in them understanding that they have to count on themselves

No pun intended, but it's the truth

And yeah 1 hour is nothing

Neither a day/week etc.

[ruby lodge]

Well what do you understand under "understanding things"

Cause only thing after reading is trying

And if trying doesn't work you look for help to get people that tell you what you didn't understand

And I know how much effort it takes. My game is almost finished, I already put 600h into it in 3 months

[fathom aspen]

My game is almost finished
I really doubt it with the code I saw earlier

Unless you mean it was made for single player

And now you are all out of a sudden supporting multiplayer

Which is a bad choice with the limited multiplayer knowledge you have

[quasi tide]

I still reference the various posts that we link. Even as a refresher.

I started and stopped like 10 or so projects just constantly redoing just the initial portion of networking.

One hour is barely anything

Start a whole new project and try to do one or two things in the world of networking.

Once you do that, do another project. Do those things again, but now do another one or two things.

Rinse & repeat.

These don't have to be complete projects mind you. It's more to get you in the comfort zone of the general process

[dark edge]

I've been using Unreal for 9 years and I still barely know wtf I'm doing

[prisma snow]

programmer club

[quasi tide]

Can confirm. Adriel is constantly lost.

[prisma snow]

he's now losing his mind over 1D physics

[icy jetty]

Lol, here we are working on 3D but he’s gone back to the basics

[prisma snow]

do you imagine how brrr games would be if it was only 1D?

[dark edge]

1D is a lot more complicated than you think. These constraints get funky

[prisma snow]

so much computing wasted for 2 and 3D

[dark edge]

You ever try to model a torque converter in a PBD style?

[icy jetty]

I did not mean that in a pejorative way btw

[dark edge]

oh i know lol

[icy jetty]

😀

[frank birch]

I've restarted the network setup 6 times by now

and I am in the seventh because I just realized that I've been using the CMC wrong

close to 2 years of work in what feel slike a false start 🤣

[dark edge]

It's kinda funny, the longer I've worked on my projects, the less impressive they look

The initial BP prototypes are hella fun, then the C++ rewrites are basically just black voids right now lol

[quasi tide]

Oh man - I love starting a project. One of my favorite hobbies.

[frank birch]

that's not limited to unreal or hard projects

i've been a videogame programmer for 7ish? years and I look at all the games I made and I hate every one of them 😅

[dark edge]

I had a "multiplayer" 3rd person action prototype within like 2 weeks of getting the engine, with some fancy abilities like a mirror image ability that made a copy of yourself that mirrored your actions. Now 9 years later I'm just staring at the output console reading logs lol.

[frank birch]

(web games, granted)

[quasi tide]

https://tenor.com/bd1SA.gif

[icy jetty]

That’s pretty impressive lol

[dark edge]

It was super fun, I wish I still had a video

used the metal man with the cape

[frank birch]

https://tenor.com/view/madness-this-is-sparta-leonidas-gerard-butler-300-gif-16528839

[icy jetty]

My first 2 weeks, I watched this 11h tutorial on how to make an RTS, that didn’t really teach me how to make an RTS properly and used very inefficient ways to accomplish things. I have spent the last few months redoing that code in cleaner ways, still learning how to actually make an RTS lol

I know it’s not ideal for a starter project but yeah

[frank birch]

first 2 weeks on UE like... ever? or in the RTS project?

[icy jetty]

Ever

[frank birch]

get ready to scrap the entire thing and start fresh like 5 or 6 times before you actually get something that almost works 😅
(sorry if this sounds too rough or mean, but it's the most likely outcome)

start with small, rts looking games

[icy jetty]

I’ve pretty much had to do that, with all the times I’ve had to change the code lol

[frank birch]

say, pick a minigame from something like utherparty

pick something like run kitty run