multiplayer

[quasi tide]

It is very functional. You can always choose not to use it if you want. Then write all the functionality you need.

Orrrrrrrr just learn how to use it and save yourself a lot of time

https://www.youtube.com/watch?v=17D4SzewYZ0 - this video goes over the saved moves aspect of CMC

Which is what trips everyone up

Or if you want, you can buy the GMC plugin ($350)

I hear good things about that

[ashen plume]

why is it neccessary to completely write our own reconciliation if its supposed to already work

[quasi tide]

You're not completely writing your own reconciliation though?

[ashen plume]

to quote the section in the video "create custom cmc"

[quasi tide]

Yeah...you just inherit from it

Not write it from scratch

[ashen plume]

and create a class to hold snapshots

aka rollback

then handle how the snapshots are applied, aka reconciliation

but the cmc should already handle both

[quasi tide]

Well - you have multiple solutions presented to you

[ashen plume]

i just find it absurd the solution here is to just not use cmc

[quasi tide]

Thats...not though?

[ashen plume]

writing my own movement prediction, which is what that video is doing, means not using the builet in prediction with cmc

gmc is a completely different custom component

these two solutions are avoiding the actual default network implementation of cmc

[quasi tide]

Then don't do multiplayer. I don't know what to tell you.

[ashen plume]

i guess i expected more of ue's default network solution

[fossil spoke]

@ashen plume I feel like you might have gotten confused. What about the CMC is not working as you expected?

The CMC is Networked

It is predicted

It does authoritative corrections

[ashen plume]

creating a character bp from menu, adding in standard documentation movement bp nodes, setting network emulation to two clients, under average condition, the rubber banding and correction is unplayable

[fossil spoke]

Do you get the same results if you just start up a brand new Third Person Template project?

[ashen plume]

blank project

[fossil spoke]

I didnt ask if it was a blank project.

I asked, if you were to setup, from the Launcher, a brand new Third Person Template project, do you get the same results if you play that instead?

Open a Third Person Template project, set the network emulation to Average, play with 2 Clients. Does it also rubber band?

[ashen plume]

let me grab the third person template quick

[ashen plume]

where do you find the third person template?

[fossil spoke]

After you start the Engine from the Launcher

It should be in the various options.

Unless you opted not to include the Templates in your Engine install.

[ashen plume]

no i opted out of samples

[fossil spoke]

You can have the included by going to the Engine options in the Launcher and changing the install to include them.

It will download them for you

[ashen plume]

the options menu forced an update so ill have to wait

[fossil spoke]

Well yeah, its got to download the Templates

If you can play normally in the Third Person Template, and the setup there operates as you would expect. Then the issues will be with how you have setup your blank project.

[ashen plume]

is there a log or series of a breakdown of the third person template in the meantime?

[fossil spoke]

I doubt it, the Templates are all extremely simple in their setup.

If you cant understand the Templates, you probably shouldnt be starting with a multiplayer project.

[ashen plume]

ive been doing multiplayer in other engines, which had basic low level implementation, my issue is having so much pre-made its cumbersome to figure out what is and isnt implemented

[fossil spoke]

Unreal is one of the smoothest development environments for making multiplayer games IMO.

You can choose to ignore a lot of the "pre-made" stuff if you want.

[quasi tide]

Mover 2.0 🙏

[ashen plume]

the rest of the replication system, remote roles, authority, and the replication modes are all pretty slick, and a lot more organized than what im used to

[ashen plume]

@fossil spoke third person template performs marginally better, many jumps still get rolled back, and experiences awful rubber-banding

[fossil spoke]

What are your specs?

Unreal isnt for potatoes FYI

If you are seeing the same issues with an unmodified Third Person Template project then I dont know what to tell you.

Sounds like you have a very underpowered machine.

[ashen plume]

i wouldnt consider my machine particularly modern, but im not experiencing framerate issues with a 1070 and i7-6700

[fossil spoke]

🤷

Also, the network emulator presets are pretty worse case scenario

Average is an understatement

[ashen plume]

i would hardly call 60 latency worse case

is there footage somewhere of the third person sample running at various tiers of network emulation?

[fossil spoke]

Highly doubt it

Ill have a look on my machine

[grand kestrel]

What are the defaults? Keep in mind setting 60 there doesn't mean 60 ping

More like 60 up then 60 down

[ashen plume]

yes, i'd rather not find out how bad it is on the bad setting, with everyone, of two clients

mind you that the lyra sample seems fine

but again most of lyra is custom

[fossil spoke]

Seems fine to me

Corrections visualized. But no rubber banding

🤷

[ashen plume]

how do you enable the corrections visualizer?

[grand kestrel]

p.netshowcorrections 1

[fossil spoke]

This 🙂

[grand kestrel]

Also Lyra's movement is basically stock CMC lol

Just some adjusted properties and of course their locomotion setup with some gas stuff over the top, but the movement has nothing special going on

[ashen plume]

most of what i gleaned of lyra was that their hero character was a dervied class of character, with a couple of custom components, each in c++

is there a breakdown i can read somewhere?

[grand kestrel]

There will be breakdowns but I can't recommend anything specific, I went through Lyra in-depth basically from it's day of release so never had the need. Give it a Google

[grand pelican]

Has anyone managed to open their ports and host a session where players outside can join the server? I am currently troubleshooting this and it doesnt seem to work, I have opened the port but still my friend cannot join with the correct IP

[ashen plume]

i'll give it another go, I had looked through it some but wanted to avoid any prediction rewrites, which I assumed they were doing by needing to write it in c++

[grand kestrel]

It's a worthy resource to learn from, just a bit large

[ashen plume]

to be fair, im out of choices, and the performance of the third person template on my machine isnt going to cut it

[fossil spoke]

Are you looking at building a competitive shooter?

Epic uses the same CMC and Character that exists with the Engine in Fortnite.

If its good enough for Fortnite its good enough for 95% of other Unreal games

Network emulation is arguably never ideal to use as a test bench.

Its great at showing you if your game state completely breaks down unrecoverably in certain scenarios. But as long as it recovers, you are golden. Thats about all its useful for.

[short arrow]

Isn't there some kind of exception with this. They have to be doing a whole lot of optimization techniques in the background right? CMC is always my biggest problem. Feels like no matter how I modify the settings it eats all of the budget

It's gotten so bad that I've just decided to make my own component to replicate movement for non essential characters

[fossil spoke]

Sure there are optimizations you can make but they involve disabling/removing features or reducing fidelity etc etc.

Those choices are really game specific. So without knowing whats required, no one can make any recommendations

[fossil spoke]

That is generally a smart choice that any developer should make. You want to prioritize things differently depending on their importance to gameplay

Just assuming CMC can handle and be used everywhere without consequence is foolish.

[short arrow]

Ah, glad to hear 🫡

[grand kestrel]

One thing I noticed, that you might want to be aware of, is if you use distance matching and variable emulation values (eg. min 70 ping, 90 max ping) then simulated proxies get quite jittery because it messes with their predicted distances lol

So if your sim proxies look janky as heck and you're using distance matching, check your emulation settings

Those emulation settings don't seem to update latency once in a while but constantly which causes the issue (or rather, the non-issue)

[fossil spoke]

@grand kestrel Interesting to know

[stable grotto]

If i spawn an actor by the owning client, switch on authority will be authority even if its not replicated and is spawned by client?

[heady copper]

Mehn now I can die in peace Ave finally seen you chat... Always wondered how your so greatly mysterious🙏

[grand kestrel]

The client has authority over the actor it spawned yes

Why not just spawn it and have it print the result tho 😄

[heady copper]

Hey guys please I have been search for a very broad range information material about multiplayer framework in unreal engine like explain the "why" of everything like why overlaps are meant to be called on sever etc any leads,?

[mystic estuary]

Your question doesn't make any sense. Can you rephrase it, please?

[peak lintel]

Hello. I've created a gliding system for a flying character. The problem is that, when the FPS is very low, the server throws you to the other side of the map. How can I solve this?

Thank you

[nova wasp]

it may be possible to subtick some of the logic to improve accuracy with large time spans

this is how most movement components work already in-engine

[hoary spear]

And account for deltaTime in general?

Unless i missed that

Hm... that would make it slower/seldomer. not faster

[nova wasp]

yeah, I can't tell what this is actually doing

[hoary spear]

DisableGlide() -> Glide() seems strange to me

[velvet kettle]

Essentially in multiplayer games you want the server to say what is real and valid, otherwise clients can do whatever they want in terms of cheating

[peak lintel]

That's just for avoiding gliding again (only after 0.6 s)

The AddForce on server, on very low FPS (10 for ex) it throwing me away over the entire map. Capped at 60 FPS, it's working as expected

[finite spindle]

Hi is there a distance if my player is far away where it's not loading the map (on client) when it's loaded on server using level streaming ?

[hoary spear]

also, you dont want the client to tell the server how fast they can glide (unless you wanna cheat)

[queen quiver]

How do I get event anydamage to fire on the server in a character class that has no player controller?

[mystic estuary]

The event will be fired even if there's no PC, what do you mean? As long as you deal any valid damage using the appropriate functions on the server, it'll be called

[queen quiver]

Apologies, I'm still trying to understand how this works, but the descriptor/label/alt text for the Event AnyDamage node says "Authoority Only. This event only fires on the server.", I took that to mean it wouldn't fire unless executed by an authority.

At the core of things I'm trying to figure out why clients aren't able to damage the actor I'm trying to damage but the listen server is. I've added print strings to the anydamage event, and it's not firing when a client hits it, but is when the server hits it, even though I have the event for calling the "Apply Damage" node set to "run on server" on damaging actor.

[mystic estuary]

At the core of things I'm trying to figure out why clients aren't able to damage the actor I'm trying to damage but the listen server is.
Damaging actors is only possible server-side. If a client wants to damage anything, it must tell the server about its intention. Ultimately the server will decide whether the client can actually damage the thing it's asking.

AnyDamage will be called server-side only as well, hence "Authority Only". If you want to notify clients about the damage, you'll need to create some custom means. However, usually people keep track of the health: anytime it changes, it means that the actor was damaged (or healed).

[queen quiver]

"Damaging actors is only possible server-side. If a client wants to damage anything, it must tell the server about its intention. Ultimately the server will decide whether the client can actually damage the thing it's asking."
That's what I was assuming, but I have an event that runs on the server that the damaging actor calls to call the Apply Damage node, so I'd assume that would mean the server is calling that event (unless I need to call that event on a class that's on the server, such as the player controller, perhaps I should try that 🤔)

[mystic estuary]

(To quote something you can highlight it with your mouse, and press the quotes sign)

[queen quiver]

Ah, thank you 🙂

[mystic estuary]

If you call ApplyDamage server-side with valid arguments, the OnAnyDamage will be called

"Valid arguments" means damage != 0, i.e. it can be either positive or negative

[queen quiver]

I needed to call it on the playercontroller (or some other actor that has authority). Makes sense 🙂

Now I just need to figure out how to do that without casting 🤦‍♂️

(To clarify, since I mentioned that the actor had no player controller at the start, I'm trying to create a player with a player character who can damage an NPC, who I'm assuming doesn't need a player controller. Granted I'm not sure how NPCs without player controllers are going to be able to execute replicated events, but one step at a time)

[mystic estuary]

Server has authority over any actor in the game

So you can call the ApplyDamage using any actor server-side, and it'll work

[queen quiver]

In my case when I was trying to call ApplyDamage on the PlayerCharacter, it was not being called unless I was playing as the listen server. When I moved it to the PlayerController and called it with a cast with the same inputs it can now be called by the client and the listenserver. In both cases I was using a custom event set to "Run on Server" 😵‍💫

[mystic estuary]

Can you show your damage related setup for the PlayerCharacter?

[queen quiver]

Sure, gimme a moment to gather the screenshots 🙂

I have re-tested to make sure, and the before setup still isn't working, the "now" setup is

[mystic estuary]

In the first screenshot HitActor will be always None when it's the client attacking. The server doesn't have that HitResult because it didn't run any trace

[queen quiver]

Ah. So if I start the custom event from before the trace it should work?

[mystic estuary]

You have to pass the hit actor in the event so that the server knows what you want to damage

[queen quiver]

You are correct, I am big dumb. Thank you very much 😅

[mystic estuary]

You're welcome

[heady copper]

Yes yes surely .... So is there Na list of all this? Things that are to be real?

[indigo brook]

After reviewing with fresh eyes, I managed to get the results needed thanks to the advice and combined knowledge of you guys. I need to clean up this and adapt, but it's a start.

Just wanted to say thanks to @mystic estuary @dark edge @sinful tree for reviewing and taking the time to answer.

[velvet kettle]

No, its at the devs discretion... do you want client to be able to modify their own health, location, inventory, score, currency, etc.

[heady copper]

No atall ....

You a compendium I can read

[civic storm]

From your messages looks like you're just looking for networking resources. There's a lot of good ones in the pinned messages like this compendium and video: https://cedric-neukirchen.net/docs/category/multiplayer-network-compendium
https://www.youtube.com/watch?v=JOJP0CvpB8w

[heady copper]

Yes yes alot of it please

[civic storm]

Yeah just scroll through pinned messages to find them all

[vagrant grail]

Why when I press P on the client to see the value of the element at index 0 of "ActiveAbilities", it doesn't get called ? Why please ?

[hoary spear]

A RepNotify variable set multiple times by the server in the same frame will still only be rep'ed once, right ?

[quasi tide]

Yeah. Happens at end of the frame.

[hoary spear]

So... would GAS juice this up somehow?

Im getting multiple updates in a frame

In a LiFo order

[drowsy meteor]

if i'm working on replication using cpp do i give questions here or in the cpp channel

[dark edge]

here if it's mostly about the networking side of it

[blazing spruce]

Hi, im making a sewer system where the player interacts with it, it displays a map and the player clicks on the sewer they want to go too

When the player first interacts with the sewer it'll play a timeline that opens it, then when they click on their desired sewer from the widget it'll open that one, delay for a couple seconds and then teleport the player over to their desired sewer, it then closes both the current and desired sewers

Almost everything is working fine however the closing sound effect isn't heard for the client player who is travelling, when the last CloseSewer is called on the Desired Sewer, they don't hear the closing sound played but the server player does, any ideas why and how to fix it? adding another delay will make it play the sound for the client but I know that's not the correct fix

[dark edge]

Why the multicasts if you're already repnotifying on IsOpen?

[blazing spruce]

Do I not need to do that? the rep notify is just setting the open or closed locations for relevancy

[dark edge]

I would instead:
OnRep_IsOpen -> call event OpenUpdated
OpenUpdated -> play sound -> play timeline

[blazing spruce]

That wont play the timeline and sound again for someone who becomes relevant later tho would it?

[ancient adder]

Is PostRepNotifies() called when everything is replicated on client side?
From the naming I guess it fires once when everything is replicated on client side
I'm thinking of overriding it to call a custom BeginPlay for a replicated UObject

[olive crow]

Do USTRUCT properties need to be marked as UPROPERTY to be replicated, if the struct is used as a replicated variable in a component/actor? If so do the properties inside the struct need to be marked as Replicated for them to be replicated or only marked as UPROPERTY?

[ancient adder]

You don't need to mark the properties in a struct as Replicated, If the struct is replicated and you don't want to replicate a specific property you add "NotReplicated" specifier to it afaik
Not sure about the rest tho

[solar stirrup]

<@&213101288538374145>

(Puppet's message)

[solar stirrup]

Called after rep notifies are fired yes

Can be called multiple times though (any time something got replicated from the server)

[gleaming vector]

[solar stirrup]

Does need to be UPROPERTY yes

Replicated doesn't exist for struct properties

Only NotReplicated if you want them to not be replicated

[signal lance]

Bot isn't deleting the messages

Oh nvm

[solar stirrup]

send the bot to android hell

make glados proud

[olive crow]

thank you for the answers

[ancient adder]

Oh, Is there a function or delegate to use that fire once?

[solar stirrup]

is the UObject a subobject

[ancient adder]

Yes

[solar stirrup]

well, yes it is im dumb

it has to be

it's not a component right, just a pure UObject?

[ancient adder]

Yep

[solar stirrup]

have your UObject implement IInterface_ActorSubobject

override virtual void OnCreatedFromReplication();

use that as your "BeginPlay()"

keep it mind that may be called before the outer actor has begun play (probably, not sure, sounds like a reasonable assumption)

[ancient adder]

Oh great, Thanks alot!

[solar stirrup]

Keep in mind this will be called on clients in multiplayer only

Not on dedicated servers, listen servers or standalone

[ancient adder]

Great to know!, Thanks again!

[solar stirrup]

o7

[timber anchor]

So, I fixed the duplicate session showing up on the server list, but now everytime i click on Join session in the widget, The "Server Joined" print string will be visible, but it won't open the listen level, it will just stay on the menu, any idea why? (Currently using SteamAPPID 480)

[blazing spruce]

I'm not sure how your set up is but are you creating a session for the player when they first load up or do they have to press a button to create their session? if they're already in a session it needs to be destroyed before joining a new session, add a destroy session node before the join session node then plug in the join session node off both on success and on failure

Also ideally that code shouldn't be inside of the widget class

[solar stirrup]

Also, are you using any specific plugin?

[timber anchor]

Im using SteamCore

My current logic is:

Find Session

Create session

[solar stirrup]

What engine version do you use

[timber anchor]

5.3.2

[timber anchor]

Was working till this morning, perfectly fine

[solar stirrup]

https://steamcore.eeldev.com/docfiles/multiplayer/sessions/joining_multiplayer_games

[timber anchor]

5.3.2 should be fine, since it was working i was able to connect both of my pc's

Testing with 2 differents pc and 2 different steam account

This is the game mode handling the post login, but i recon that wont get fired since im not joining the level at all

Ill check the hotfix anyway, might be the reason stopped working(?)

The hotfix would be adding this in the defaultengine.ini

[ConsoleVariables]
net.CurrentHandshakeVersion=2
net.MinHandshakeVersion=2

i'll test it out soon! Thanks both

Yup it works, thanks @solar stirrup was just the hotfix issue :S

[solar stirrup]

o7

[amber vale]

Hey, if there's data on the game mode that I want on the client, what's the best way to get it? I have GM-specific data, like "game mode name" (e.g. "Team Deathmatch," "Capture the Flag," etc.), and I want to get it on the client to display it in their UI. But the game mode only exists on the server. What would be the best way to retrieve it?

[dark edge]

put it in GameState

or have that gamemode use a specific gamestate

[amber vale]

What if I put the GM data in a static data asset, and then have the game state retrieve that data asset when the game starts so it has a persistent reference to it that can be retrieved by the other clients?

[dark edge]

I mean sure, why not just have the Gamestate class BE that data asset?

score and flags etc are state of the game, might as well keep that energy going

[amber vale]

Well there's a lot of static gamemode-specific data that I feel is better suited to being compartmentalized into a static data asset, like which UI elements are created, which global gameplay abilities are applied, etc.

[dark edge]

Sure, that can work

Where will the score for CTF live?

[amber vale]

Runtime data like that is all in the game state, but the "rules" of the game (like starting lives) is in the game mode

[mint drift]

Hey guys, I have tried few stuff and made few research, but I havent found the answer. How do I "Open" a level just for 1 player? I have 2 players enjoying 1 level, but then... they want to go to another level. But just 1 player, not all of them, how to?

[amber vale]

Is it an online multiplayer game?

[mint drift]

yes

[mystic estuary]

Use seamless travelling, not the absolute one

[amber vale]

If you know which player wants to travel, you can just call your "Open Level" code on that player's instance of the game. Whenever you call code in multiplayer games, it will only execute on the instance of the game that its being called on. So if you just add a check to ensure that the code only gets called for a specific player's game, then it only gets called on that game, if that makes sense. If you have the actual client, you could just send them an RPC too, though that might not be necessary if everything is replicated correctly.

[mint drift]

but, by doing it, I will try that and the seamless travel.

I was trying this, it worked, but it takes every actor in the level even with a "Specific player" correctly placed.

[amber vale]

Hmm, sorry, I don't really know how this system works. I've only ever used UWorld::ServerTravel and APlayerController:ClientTravel in C++. I'm not sure how it works in BP

[mint drift]

I can do this on C, no problem. So, you can make a object call the player controller and then, server travel and it works for that player only?

[amber vale]

You can't use server travel in this case, because then the server opens the level. Since everyone is connected to the server, it will disconnect everyone and re-connect them to the new level so they stay with the server. If you want just one player to travel, you'll need to call ClientTravel for the player you want to travel. Since the PC only exists on the server and local client, you can call it on either one without worrying about the other players traveling.

[mint drift]

I will try that, thanks

[brittle path]

Hi! I made a teleporter that should change the player's position when overlapping with a collision box, everything works fine but only for the server, when client tries to TP, it teleports the server, can someone help me, please?
I played with replication earlier but it doesn't seem to work, I'm probably doing something wrong

[blazing spruce]

You wanna avoid using any getter that takes in a player index for multiplayer, your get player pawn will only ever get the player at the index of 0 which is likely your sever player

[brittle path]

Oooh right, I immidiately thought about it when I read your mention about the player index

[brittle path]

So do you know what should I use to make it work?

will cast to a bp_thirdpersoncharacter work?
(I don't think it's even possible)

[warm lintel]

Your events are not replicated as far as I can see.
As for player controllers;
Each client will have only that client's specific controller.
The server will have all player controllers on it.

A good alternative depending on what you're doing is to query for PlayerState instead, as well as GameState for certain things

GameMode is also not replicated if I remember.

[blazing spruce]

what class is dimension 1, 2 and 3 events in?

[brittle path]

gamemode

[brittle path]

Okay something is about to work but it looks like this: (I've added replication)
When client attempts to teleport, it only teleports him for 1 milisecond then goes back to the spot he tried to teleport from :/

It works for the server
But it still teleports the server when client tries to do it

[snow trail]

is having full server authority that important even for games that are meant to be played really only with friends (non competitive)? or is it fine leaving some stuff up to the clients?

im mainly talking about movement here

[quasi tide]

Up to you honestly

Co-op games are typically more lenient in this regard

[brittle path]

Okay everything finally works! I just did the whole thing in the teleporter's actor class and used the Other Actor node as a target

[snow trail]

thought so, thanks

[warped oxide]

If I wanted to save a players stats (like level, xp, etc.) and I don't want this data stored locally, do I need to have an online database/cloud save in order to do so? Or can I save all of this without leaving unreal engine

[quasi tide]

Doing it in a database is the better route, generally.

But you can get away with using UE's save system on the dedicated server. And you want them to have unique stats per server.

[warped oxide]

Thank you for the help! It's really difficult to find resources online about server authority saving in a multiplayer game. Would you happen to know of any resources that go into that kind of thing? If not all good!

[quasi tide]

Nope. Just experience.

[meager spade]

backends like EOS/Steam, etc

have a way to store player stats

[coral wing]

I'm getting a weird drifting issue on Simulated Proxies. Creating a custom movement mode with network prediction. Looks fine on the server, and owning client, but other clients see the moving client as shaky, and if the player stops turning, the Simulated Proxies see that client drift off of their location.

[meager spade]

Network Prediction?

is this for player character movement?

if your using network prediction, i would suggest looking at 5.4's Mover 2.0

unless you mean network prediction with the CMC which is a different thing

[coral wing]

CMC

Here's the 2 clients.

Ok nvm. I did the thing where after being stuck on the issue for an hour and then posting, I suddenly know what the issue is.

I didn't replicate an FVector to the simulated proxy. So it was trying to move the player to 0,0,0

It's fixed now. Sorry about that.

[olive anchor]

I'm learning Unreal right now, and I want to make sure I'm doing stuff right from the start. I have a simple control script in my PlayerController. If I want to have a server authoritative setup with all the benefeits of UEs networking, should I keep the AddInputVector(s) inside the PlayerController code or in the Character code?

[short arrow]

I don't think it matters where you put it as long as you are passing the correct references

ofcourse, movement specific logic should go in the character

The only inputs that should be in the controller are inputs that are not related to any specific pawn

[warped oxide]

Okay so I have problem I can't sort out. I have a car actor BP in a world partitioned level. When playing as the client, when I get outside a certain range of where the client spawned in the car will just unload without any prompting at 32k units. But if I go on foot the client character won't. The car doesn't unload and works fine if the server does the same thing.

Setting "Is spatially loaded" to false fixes the issue, but it keeps the car always loaded in which doesn't seem like a good thing. Anyone have any idea how to fix this that doesn't require the car actor to always be loaded?

I also tried setting the relevancy to the owner, always relevant, etc. and none of that fixed it either

[warped oxide]

Alright I have fixed the issue for realsies this time. I just have to spawn in the car after the level is loaded rather than placing the car in the world. I don't know if that's best practice but I'll take it.

[thin stratus]

Has anyone toyed around with the Network Prediction Plugin beyond the Mock stuff and Mover? Specifically with having two Simulations (e.g. Mover + Some Ability System) work together?

[mild lynx]

Is Unreals Bandwidth limit being 10K pretty average? I'm wondering what a good target to aim for is for a Multiplayer game. I can't seem to find any info on it online.

[fossil spoke]

The limits on bandwidth set in the .inis is very conservative.

Average internet connections are very capable.

These days

You would likely hit CPU bottlenecks before being drastically impacted by bandwidth limits.

So focus on reducing CPU usage instead of worrying to much about bandwidth

[daring gorge]

can anyone tell me why this is happening when i possess the boat from client?, i run the possession on a server event too and i tried all different classess to call it from aswell, the boat doesnt do this if i play as the listen server but when i play as the client and possess it does this/ its also possession because only if i possess this happens otherwise even attaching doesnt cause an issue.(im using smooth sync to replicate the physics)

[finite spindle]

Hey, how can i load/ unload a map only for 1 client using level streaming ? 🙂

[thin stratus]

You sure you call Possess on the server?

An probably no one can really tell you, cause no one knows your code

[daring gorge]

i do a line trace on the player character that calls an interface on server event, the event then communicates with whatever to possess it.
ive tried to call the possess function from that bp, from the player bp, from the game mode and from the controller but no one work

[daring gorge]

i am pretty sure actually

[thin stratus]

The ServerRPC must happen in the Character or a Client-owned Actor fwiw

Where you call Possess afterwards doesn't matter

[silver loom]

Speed is fine for Singleplayer, or 1 client. But for each Client the rotation speed gets faster. With 4 total clients their speed is insane.

How do I stop this?

[daring gorge]

so the actual possession and seating of the character on the vehicle is on a server rpc thats just spawned and there in the world, whilst the interface message thats sent is in the characrer class which is client owned., again im pretty sure ive tried it all the way arouds yet i cant seem to get it work properly

[thin stratus]

Well, again, ServerRPC has to happen on a Client Owned Actor

Otherwise it's dropped

[daring gorge]

im pretty sure i did that

also is there a way to check if its dropped?

[thin stratus]

Think your log should say that you tried to call a ServerRPC on something that has no owning connection

[snow trail]

hello, im trying to simply have a player Possess another pawn when they interact with it, but there's something odd going on
the Event Interact fires correctly, but the Run On Server event doesnt run at all, and im not sure why

it runs if i do the same on the listen server, but on clients it just doesnt start
could it be because the client does not own the pawn in question (the one it wants to possess)? if so, what could i do? is it possible to transfer ownership?
should i just call the RoS directly from an owned actor instead?

[daring gorge]

ok imma look for this, thanks a lot!

[daring gorge]

same issue

almost same

[mild lynx]

Thanks for the info. When testing recently, I noticed I was hitting the 10k cap, and we were experiences a good bit of Client Corrections.

Do you have a ballpark idea of what I could raise the Max to?

[thin stratus]

Same for you, you can't call the RPC on the Pawn you want to possess

The RPC has to be called in a ClientOwned Actor

Typical is to call the RPC in the current Character and then do the Trace -> Interface

[snow trail]

yeah, figured it out lol, thanks!

[storm sable]

Hey y'all I am running into some issues with seamless travel, in that my character pawn is not persisting from one level to another. It is being despawned and respawned I believe. Anybody know how I can correct this?

[thin stratus]

While you could in theory, via C++, persist it, it's usually more common that it's supposed to not persist

SeamlessTravel doesn't persist much. The only thing you get is a chance to move data between PlayerStates and PlayerControllers, and in theory to persist things manually if really needed.

[storm sable]

I see, and I appreciate the response! Do you know how I might set up my character pawn to persist?

[thin stratus]

In C++, in your PlayerController, you can provide the Pawn in the SeamlessTravelActorList

But again, it's highly likely you simply don't want to do that and rather spawn it from scratch

Any other reference that Character has to things in the old level will break

And stuff that might usually initialize by that pawn spawning will also fail

You are usually better of only saving the data that the Pawn needs

[storm sable]

And if I am only saving the data that the pawn needs, I would manage that in the PlayerState?

[thin stratus]

You could, yeah

Or in the Playercontroller

GameMode should have a function that calls and provides old and new PlayerController

OnSwapPlayerControllers or so

[storm sable]

Like for instance I have a variable on my character pawn called "hasJetpack" so it sounds like this and other variables like this should exist on the PlayerState or PlayerController. Is that right?

[thin stratus]

There are more ways, you can also save the data before traveling and load it afterwards again

There is a message pinned to this channel

That offers some ideas

"Persistent Data Compendium"

[storm sable]

Ah yeah I have looked at that a bit

Hypothetically, if I were to move that "hasJetpack" variable to my PlayerState, that would automatically persist through the seamless travel?

[thin stratus]

Not automatically

You would need to use CopyProperties in the PlayerState to move it over

[storm sable]

I've seen references to that as well, is CopyProperties the only event I need to implement? Or is there something akin to "PasteProperties"

[thin stratus]

Only in theory

If we ignore reconnectors

Which use that other event

Which name I forogt

OverrideWith or so

[storm sable]

Okay, so I assume CopyProperties will be fired at the beginning of seamless travel, and then the OverrideWith is fired at the end of seamless travel?

[thin stratus]

No

CopyProperties is called after the SeamlessTravel is done.
OverrideWith is when someone reconnects and you have inactive playerStates for disconnected players

[prisma snow]

Hi! When we call "SetOwner()" on an actor, from reading the source code, it seems it gets replicated to clients right? So it would be correct to only call this function from the server, I assume

[thin stratus]

Yes, you are also only supposed to call it from the Server in theory

[prisma snow]

excellent, that´s what it seemed like, thank you 🙂

[storm sable]

I really appreciate the help. Do you know of a resource that would help set up copyproperties in bp?

[thin stratus]

It's just a function you use. Read my Compendium fwiw, but in theory, that doesn't need documentation much

[novel widget]

Hey everybody! I'm playing around with UE 5.3 and I noticed strange behavior when using standard first person player controller (based off the first person template) and character -> physics colliders. Can somebody point me in a right direction on how to fix it? Is it even doable with the standard character controller or will I have to replace it with some physics based solution?

Those branches are just plain box colliders and the character is a default capsule, visible mesh is non-colliding.

[torn portal]

@solid fjord ??

[solid fjord]

Hey there, i have a pretty basic question that's been stumping me for hours now..

I have an actor in the scene, it has an inventory component.
Goal is to update widgets of the inventory properly, i got it working so that each player can interact with it, set itself as owner and move it around. When the other player then comes and interacts with it it can see the changes just fine. Issue is when two players are looking at the inventory widget (grid w/ slots, etc.) at the same time..
Any ideas or pointers in the right direction would be very helpful!

[solid fjord]

whats up?

[novel widget]

I solved it by having the inventory (like chest) always owned by the server, all inventory manipulations are done via the server side event and I have set the "RepNotify" on my array with inventory contents which is fired on all clients when it changes @solid fjord

[solid fjord]

ohh that might be a good idea, i'll give that a shot. thanks!

[novel widget]

No problem, works great on my project but I'm a UE newbie so maybe somebody has better solutions 😄

[tiny scaffold]

This is going to seem silly and very stupid but i for some reason cant tell the client the server has set an array element or set members of an array element without doing this.

The array is replicated what am i doing wrong gand how stupid am i

[novel widget]

Well, I do the same

Seems that you need to actually touch the variable itself, not just its contents for the notify to trigger

And make sure that your actor actually has set "Is Replicated" to true, I've lost few hours on that when I initially implemented that lol

[tiny scaffold]

Thing is though even if i tell the sever to set the array like that it just doesn't tell the client

[tiny scaffold]

Yeah replication is set to replicated

[novel widget]

Do you have it setup like this?

[tiny scaffold]

i just tried with rep notify it doesn't really do anything. Also wouldn't it just be the same as having that extra function is you had to use notify to call it

[novel widget]

In my case I need the notify, so I can re-draw UI after the data is received, also it was useful to just print debug info when the data was received

[tiny scaffold]

makes sense i should probably use the notify

[novel widget]

It just calls the function after it already updated the variable, so if the replication is not working it probably won't change anything but I found it helpful for debugging

[tiny scaffold]

Yeah using the notify does make sense now. Maybe the player shouldn't really have access to the inventory except when using it in the ui to drag n drop. so i might use the notify to update the ui with the new invnetory using a interface

[hoary spear]

They can still read from it tho like normally

No need for an interface

I assume the inventory is already some sort of component anyways ?

[tiny scaffold]

Yeah using a custom bp component

I use the common ui activaable widget stacker so i find it easier to set the current one as a variable and then just use the interface to update the ui

[hoary spear]

So they'd read from it normally, RPC for an attempted move through their owning PC , and get On_Rep for the actual change

Id let the On_Rep just trigger a local event dispatcher but if interfaces suit you then go for it

[novel widget]

I'm glad you mentioned the event dispatchers since that's exactly how I did it for my system 😄

[hoary spear]

Interfaces only make sense if you dont know which class you are talking to*

In this case its always gonna be a player through the UI

[frail pecan]

Hey everyone, I'm trying to develop an Local Multiplayer Monopoly game for my portfolio, is it okay to ask here for some advice or tutorial reference ?
thanks for the answer !

[torpid girder]

[2024-03-02T19:02:08.698Z]LogOutputDevice: Error: Widget [Action_Select] does not have a parent activatable widget at any level - cannot register standard binding to action [Legacy_DT_PMM_InputAction_Input_Select]. UserWidget parent(s): CharacterSelection, WB_AvalonHUDManager_C_0

Hello I am trying to fix the above error but I don't know how to configure the parent widget

[mystic estuary]

You should use #umg for this

[torpid girder]

oh i am going mad 🙂 i thought i click umg 🙂

[prisma snow]

Hi! What would be the best way to replicate a UDataAssetreference? We spawn our actors from them so it's a concrete case in which it would be useful, otherwise we need to replicate a lot of data that is already contained in the data asset. Basically I only want to make the data asset network addressable, not really interested in replicating it's inner data at all since it is constant through the game.

[lost inlet]

A replicated UPROPERTY of a data asset pointer should work just fine

And yes, it's replicated as a path to the asset

[jovial charm]

Hey guys I am trying to spawn an actor (loot) on a listen-server that is replicated to owner only. The owner of this spawned loot is a player controller, this makes it so the spawned loot is only visible to the client with that controller. However, the spawned loot is always visible to the host player as well. Any tips on how I could make it so the host player cannot see this spawned loot?

[lost inlet]

Well the host player is always going to know about the actor, they're the server after all. You'll need some clientside method of hiding for the host player

[jovial charm]

is there a way to check if the controller is Host or Client?

[lost inlet]

Well you said the player controller owns it, so you can get the owner. IsLocalPlayerController is helpful here

Clients don't know about other player controllers, but obviously the host will

[fossil spoke]

That entirely depends on your games needs. You want it as low as you can get away with.

[prisma snow]

ohh excellent then! thank you!!

[woven bramble]

HEY! I get the result of the advanced session (to create a server list) and 'Get max players' works, but 'Get current players' does not. What could be the reason for this? (It always returns '1')
edit: solved by adding Extra settings etc. etc.. life is beautfiul aq 🙂

[vagrant grail]

I need to create a server event with inputs, so I can call it from other places (server sided).
If I create an RPC with inputs but don't call it from the client, could the client using a cheat call it by any mean and cheat in the game ?

[mild lynx]

Is there a known way to change the cap? I've seen a few different posts online from various years.

[lost inlet]

Any client->server RPC you have in the game a cheat could arbitrarily call or modify calls to

[vagrant grail]

I know that but my question is about creating an RPC (so a server event with inputs) and never call it directly from the client but rather directly from the server, so is it possible for a client to cheat with that or not ?

[lost inlet]

why is it even an RPC then

[vagrant grail]

isn't RPC = Server Event ?

[lost inlet]

the initialism is self-describing, remote procedure call

if you want to call a function on the server from another function on the server, just call the function. no networking required

[vagrant grail]

so the way I'm doing it is having a server event being called by another event from the server, is that good ?

[quasi tide]

It's pointless

That's what sswires is saying

[lost inlet]

yeah, completely pointless

[quasi tide]

Because you're already on the server

[lost inlet]

just use a normal ass function

[vagrant grail]

"ass" function ?

[fossil spoke]

Ini files

[lost inlet]

normal-ass if you want to be pedantic about punctuation

[fossil spoke]

Its easy to google

[vagrant grail]

normal-ass ? pedantic ? I'm even more confused

[lost inlet]

it's weird you don't know these words

but fine, I won't say ass

just use a normal function or event

[vagrant grail]

because I never used these words 😄 And also english isn't my first language 🙂

[lost inlet]

UFUNCTION(server,...) and UFUNCTION(client, ...) and their BP equivilents are only useful for networking

[vagrant grail]

Is there a method to not accept a player joigning the game midgame if he was not in a list of PlayerControllers that was set in the beginning of the game ?

I want this to avoid accepting new players but still allow players that were there in the beginning of the game if they get disconnected to come back in the game without any problem.

[fossil spoke]

You can refuse connections in AGameModeBase::PreLogin or AGameModeBase::Login

[vagrant grail]

I'm not sure to understand as I'm using Blueprint, how to do that through blueprint please ?

[fossil spoke]

You need C++ from memory

I could be wrong with UE5

I dont use it at the moment.

[thin stratus]

You could use PostLogin in your GameMode in Blueprints and destroy the Controller (or send an RPC to tell the to leave). Would need to keep track of UniqueNetId to know who should be there and who shouldn't.

I can tell you though that the majority of this kind of stuff, if done right, needs C++

Blueprint won't bring you far, so you should somewhat get used to the thought that you gotta learn C++ if you want to ship a multiplayer title

[fossil spoke]

If you are making any serious multiplayer game it wont be done purely in BP

[thin stratus]

"Won't" and probably "can't".

[fossil spoke]

🤷 lol

[vagrant grail]

I'm trying to create an Among Us type game, so even isn't possible with Blueprint only ?

[thin stratus]

Maybe?

Some of the Gameplay, probably.

You will hit walls every once in a while

The "Deny Connection" stuff being one.

[lost inlet]

networking is one of the things that is 100x more painful in BP

and then there's stuff you literally can't do

[fossil spoke]

You could probably get a bunch of plugins together that expose what you need. But honestly, you need to learn and use C++. It will make your life easier

[vagrant grail]

It's kinda weird that there's no node to deny the connection of a new player or at least a node to kick a player 🤔

[thin stratus]

I can explain you why that is

Blueprints were never meant to develop a full game.

They were meant as an extension for C++, to empower Designers to create smaller scripts.

They grew a lot, because Epic noticed that people use them a lot more than they thought.

But ultimately, a really really really big part of UE is not available in Blueprints

And won't ever be.

[vagrant grail]

why ?

[thin stratus]

And you find that multiplayer related stuff is missign a lot more

[thin stratus]

Because there are no plans to expose more. And a lot of stuff simply can't b e exposed, because there is no logical counterpart to it for BPs

If you want to realy know why, you gotta ask whoever is responsible for this on Epic Games' end

Blueprints is and will always be a designer visual scripting language, that has a lot of power, but also a lot of limitations.

[vagrant grail]

I don't have the privilege to have Epic Games friends, so that means I will never get an answer to that question, and to me it's kinda stupid as it would help alot of people. And I think one of their goal should be to expose as much stuff as possible to blueprint so people can do most of game (multiplayer games included) into blueprint only.

[thin stratus]

We are 8 years or so in

This won't happen

You can do a lot, but you gotta live with the fact that you need C++ for more complex stuff

[vagrant grail]

The issue is there are no good unreal c++ tutorial showing how to do stuff properly

[thin stratus]

There are honestly also no good Blueprint tutorials either

But we all made it work (:

[hollow eagle]

There are very very few (if any) games of a scale epic generally cares about that would have use for blueprint-only multiplayer functionality of the level you're talking about. It's really as simple as that - it's not the intended workflow, therefore it isn't something they're going to care about.
Blueprint isn't intended to be what you create everything in - just because you can doesn't mean you should, and time spent enabling a sub-par workflow is time that could have been spent on actual improvements to the engine.
There are a few annoying omissions in terms of general replication functionality that would be good to have, but exposing everything (or nearly everything) would just be a waste of time for something that still wouldn't be used by the majority of shipping games.

[vagrant grail]

True, but to me Blueprint feels more fixable as visual scripting is easily understandable compared to C++ where you (I guess) need to handle stuff like memory, optimizations, etc... while in Blueprint alot of that stuff is handled for us BTS.

[thin stratus]

You don't need to handle Memory in C++ either

Unless you really start using native C++, which you usually don't

And "handle stuff like optimization" is also not true. You can write more optimize code in C++ than in BPs, but that's optionally

[quasi tide]

As long as you stay within the confines of UE's framework, C++ in UE feels like a worse version of C# 😈

[thin stratus]

I fully understand if you like BPs more than learning C++

[vagrant grail]

That's what I felt when I tried it

[thin stratus]

But that won't change anything about what UE requires you to use when making more complex Multiplayer Games.

[quasi tide]

This is a good thing though. Because you're really not dealing with the frustrating parts of C++ per se

[vagrant grail]

Do you define an "Among Us" like game as part of "complex Multiplayer Games" ?

[hollow eagle]

Just about any multiplayer game is inherently complex.

There are varying degrees of complexity, but there is no "simple" implementation of multiplayer.

[thin stratus]

Parts of it, maybe not. Interacting with some Consoles or so can be done in BPs just fine.
Killing someone and reporting it, too. The Gameplay part probably works just fine.

But Session Management and possibly the Voice Stuff might be more tricky

[vagrant grail]

argh

[thin stratus]

The UI part, the voting of people etc. can also be done in BPs fwiw

[vagrant grail]

Well, then I will start doing all the major BP part, and come here asking 1000 questions about the c++ part 🥲

[thin stratus]

Like, you can get away with a lot

But you will eventually hit a wall

Or hack it really badly

The Denying of Connections is one of those things. You only have access to PostLogin in BPs. Not PreLogin or Login. When PostLogin calls, you already have a connected player. Which is a bit weird if you then forcefully disconnect them, cause they will already have loaded the map.

[lost inlet]

I'm actually glad Epic didn't go the route of exposing literally everything. I can't imagine what evils designers would get up to

[thin stratus]

I really don't think it is possible to expose "everything"

I think they should expose some stuff where they exposed other parts of

Such as PreLogin and Login fwiw

But NetSerializers, generally Templated stuff, anything that has Struct Shared Ptrs, and what not

There is so much stuff that I wouldn't even know how that should work in BPs

[lost inlet]

well seeing as BP structs barely work as it is, it's probably best they didn't try and make a BP parallel

[thin stratus]

I would like some Quality of Life updates though

• OnRep callbacks from C++ Properties, such as Instigator, Owner, Controller, PlayerState, Pawn
• Callbacks for different Actor Stages, such as PostInitProperties etc.
• Some better way to create MatchStates in BPs, cause that is interely C++
• Setters and Getters for useful Actor/Pawn/Character/Controller/etc. stuff that has supported types and are just missing

• Maybe SeamlessTravelList support

There is a lot that was originally not exposed cause Epic thought Designers would break stuff. But by now there is so much stuff that can break, and I also don't get why one would limit functionality over user-faults

[quasi tide]

I realized the other day that there isn't a delegate that fires off when a PS is added/removed from the PlayerArray in the gamestate. I think that could be useful personally. So I have one myself and I use that to handle some UI stuff.

[thin stratus]

Yeah the PlayerArray is also a strange piece of art.

[quasi tide]

At least the add/removal methods are virtual

[lost inlet]

the lack of delegates for the player state being valid on the client is a real piss boiler

I've had to implement it manually for each project

[thin stratus]

Like they constantly add new cool features, such as MVVM, new Style Sets, StateTree, and what not. Stuff that needs new Editors, UI, Types, Icons. One would think there would be some room for adding simple exposed functions

It took so long to get a proper Controller callback in Pawns for Clients

[quasi tide]

That's pretty much what I am using that delegate for.

[vagrant grail]

Why can't I control my spawned character on the

• Client 0 instance when I'm in Netmode : Client
  and
• on the Server when I'm on Netmode : Listen Server ?

[strange apex]

I have a Widget that shows up in world when a player is in the area, the problem is other players are able to see it, i need it to be visible to induvidual persons.

[quasi tide]

That's because on every client's machine, a player is overlapping with this. You need to filter for only the local player.

Cast other actor to pawn, get controller, check if it is locally controlled - this is one way to do it.

[strange apex]

how do i check if its locally controlled?

[quasi tide]

It's a method on the controller

[quasi tide]

Yup. Also wanna check if the controller is valid as well.

[strange apex]

Like this?

[quasi tide]

Run it - see what happens

[strange apex]

Wow that worked... okay thanks amma now try to figure out why xD

[mighty acorn]

because it does essentially what i told you in #umg

only executes the piece of code on the client that is overlapping

on the server and all other clients the branch condition will be false

[quasi tide]

I've been bamboozled

[mighty acorn]

nah i told them to ask here what the best practice for UE multiplayer is

[quasi tide]

I've not been bamboozled

[mighty acorn]

as i suggested to check for server authority and only show the widget if it's false

which might work, too?

[elder sable]

Hi, is it possible to force the replication of a value that doesn't change ?

[vagrant grail]

anyone please ? ☝️

[quasi tide]

No. Because Client B would run that code as well and they're not authority of this overlapping thing

[mighty acorn]

makes sense, just hopped in here because i was curious what the solution is 😄 thanks

[quasi tide]

Why would you? If it hasn't changed, clients already have it

[strange apex]

So am guessing i can use this logic for any other thing that needs to be run locally?

[quasi tide]

It's one way, yes.

[elder sable]

Because it changed too fast A > B > A

[quasi tide]

There are situations where the HasAuth check works as well. But running something on a specific client, you typically want to check their Net Role, to be AutonomousProxy pretty much. Which is something that the is local controller checks.

[quasi tide]

Then it did change. In which case, replcated properties only send out the value at the end of the frame. So if it did A > B > A in one frame, the server doesn't register it as changing for replication reasons. There might be a way to do it otherwise, but I can't recall

[elder sable]

Well i can flip a bit to force the update but i guess there is something more clean :p

[woven basin]

In c++ you can set a replicated value to always trigger the onrep update vs the default update only if changed?

[quasi tide]

That's not the same thing. By the end of the frame, the server will see that the value is still A, even though it went A > B > A. So it still shouldn't replicate in the server's eyes

OnRep being triggered is only something client side anyway

And that's what you're talking about

[errant mulch]

hello guys! im trying to use an event dispatcher in a multiplayer game to activate a timeline inside an actor for a little animation, the problem is that in the actor i know the movement is replicated, because another timeline on the begin play replicates the movement just fine across clients, but when i try to do it with a bind event using the event dispatcher, the code works on the client that uses the animation, but not on the server or the other client

here are the bps

and here the code inside the actor that is supposed to do the movement across clients

i tried a bunch of stuff, like the thing on the unreal documentation where i would put a custom function to call it on server and then call that on the client, but it hasent work like other things i have completed with that method, and i dont know if im using the event dispatcher badly

[errant mulch]

if anyone needs more context or info, you can ping or dm me np, ill use the time needed to explain it correctly

[solid fjord]

Hey there, i have a question about ownership,
i have an actor in my scene on which i set the owner to the server in the beginplay like this:

SetOwner(GetWorld()->GetFirstPlayerController());

I then call a function on an actor component on that actor, and depending on whether it's the server or the client, the owners authority changes, even though it prints out the same owner.
Logs in function:

UE_LOG(LogTemp, Warning, TEXT("COMP OWNER: %s"), *GetOwner()->GetName());
UE_LOG(LogTemp, Warning, TEXT("COMP OWNER AUTH: %s"), (GetOwner()->HasAuthority() ? TEXT("YES") : TEXT("NO")));
if (GetOwner()->GetOwner()) {
    UE_LOG(LogTemp, Warning, TEXT("COMP OWNERS OWNER: %s"), *GetOwner()->GetOwner()->GetName());
    UE_LOG(LogTemp, Warning, TEXT("COMP OWNERS OWNER AUTH: %s"), (GetOwner()->GetOwner()->HasAuthority() ? TEXT("YES") : TEXT("NO")));
}

output log in game:

SERVER
LogTemp: Warning: COMP OWNER: BP_Container_C_1
LogTemp: Warning: COMP OWNER AUTH: YES
LogTemp: Warning: COMP OWNERS OWNER: BP_Core_PlayerController_C_0
LogTemp: Warning: COMP OWNERS OWNER AUTH: YES

CLIENT
LogTemp: Warning: COMP OWNER: BP_Container_C_1
LogTemp: Warning: COMP OWNER AUTH: NO
LogTemp: Warning: COMP OWNERS OWNER: BP_Core_PlayerController_C_0
LogTemp: Warning: COMP OWNERS OWNER AUTH: NO

Any ideas or hints would be super helpful!

[hoary spear]

Delegates are executed "locally"

[vagrant grail]

Anyone please ? ☝️ 🙂

[hoary spear]

Id think that should work but breakpoint it ?

Does it all execute ?

Isnt there already functions for respawning player

[vagrant grail]

Where do you want me to breakpoint it ?
When first joigning with the first player (so the host) it prints this but I can't move the character
What do you mean by your last sentence ? 🤔

When joining with the client it prints this

[hoary spear]

In neither case can you move the pawn?

[vagrant grail]

No, on the client I can move the pawn but not on the server / host player

[hoary spear]

Client 1, not standalone or listen server ?

In the window header

[vagrant grail]

Currently I'm testing with "Play as Client". Should I rather test with Standalone or Listen Server ?

[hoary spear]

Listen server is probably equivalent to standalone

Wheres the logic that prints the ability stuff?

Ability beginplay

[vagrant grail]

Tried that same issue but I have 1 extra issue printed when the host creates a game instance to join (Play as Listen Server)

[hoary spear]

Something fundamentally flawed

[surreal peak]

So whats the consensus on networking chaos? Send the initial destruction values and hope for the best?

Like the destruction trigger and whatever inital forces, and then just use it for non gameplay integral things?

[merry pebble]

What would be the best way to replicate character switching? I have an interface that messages from a Widget Blueprint, to the GameMode. Then Multicast an unposses, spawn actor, posses... Works for singleplayer, but doesn't like to work when I run two clients. Anyone know the best practice?

[hoary spear]

Widget cant talk to server / gamemode

[merry pebble]

Oh

[hoary spear]

Gamemode doesnt exist on the client

It only works on the owning client/host because it IS the server

[merry pebble]

Well then, what would be the best practice?

GameInstance?

[hoary spear]

Nonono

😅

Gamemode is fine for spawning a new char

You must talk through a replicated, client owned actor

The most obvious choise being PlayerController

[merry pebble]

Fair enough, so from widget to controller, then to gamemode?

[hoary spear]

Yes

Controller does the rpc

To server

(in this case, if the only change is the skeletal mesh, i would ofcourse just change the skeletal mesh)

[thin stratus]

Fyi the Multicast is also redundant

[merry pebble]

A ROS should do?

[thin stratus]

You only need to call Unposses on the server

Same with possess and same with spawning the actor, cause it's presumably marked as replicated

[quasi tide]

I just wanna say - getting grappling to look good over the network is total butt. (Like character grappling, not a grapple hook).

[thin stratus]

You mean a char grabbing another?

[quasi tide]

Yeah

[thin stratus]

Yeah we dropped that shit in that one moba I worked on

Too many bugs too cause epic does too much behind the scenes

[quasi tide]

I 🫡 the devs who have to get those wrestling games working online

[merry pebble]

So only have a ROS in the gamemode for unposses? Then do the character change in the controller or keep that in the gamemode?

[thin stratus]

You have one Server RPC in the Controller

That then tells the Game Mode to unpossess, spawn, possess

[quasi tide]

You'd figure it wouldn't be so bad, considering Gears of War had it.

Heck, even Fortnite allows you to carry people if I recall

[thin stratus]

It probably isn't but we need it predicted

And grabbing predicted was working

Dropping was often not

[quasi tide]

I need it for my zombie grabs

About to go the classic style and "oh, you're slow when you're getting attacked; screw actually grabbing you" route 🤣

[thin stratus]

You mean a Grab + Bite

Or literally grabbing and pulling away until someone helps you

[quasi tide]

Grab + Bite + chance for player to do a self-defense move during grapple

[thin stratus]

Right I mean that's a tad different

[merry pebble]

So just like this?

[thin stratus]

For that stuff you usually need to ensure the player is in a special movement mode or fwiw none

And then you simply play two montages

[quasi tide]

Yeah, that's what I'm doing

[thin stratus]

And ensure both are in the same place for the montage

[quasi tide]

But it always looks like crum 😭

[thin stratus]

Or at least matching place

Hm

[quasi tide]

It's probably how I'm handling onreps and passing data around to be honest

Just throwin' stuff at the wall at the moment.

[hoary spear]

looks alright

[thin stratus]

I mean it looks fine but it's still pretty shite

[hoary spear]

you'd wanna use the controllers onpossess

for the UI update

[thin stratus]

You use way too many interfaces

[hoary spear]

^

[thin stratus]

You know your controllers, characters and games modes classes

There is no need for interfaces

[hoary spear]

people love them interfaces in general

[thin stratus]

You only use interfaces if you need a variety of actors that don't share a parent class to react to a common function call

Which is very specific and rare

[hoary spear]

Interaction could be one, but even there components are superor ™️

[thin stratus]

All interface calls in your screenshot are wrong and redundant

And the second wrong thing is the RPC to the Client to inform about the new character

[quasi tide]

I've been more of a fan of components-as-interfaces to be honest. Not only do interfaces suck to deal with in C++, but components can hold state. Which can be useful in some cases.

[thin stratus]

That RPC is in no way gonna arrive at a point where the client also has the new character

[hoary spear]

exactly !

[thin stratus]

If you want to react to this you will need to use proper callbacks

[hoary spear]

and components can contain code and predefined functionality

[thin stratus]

Components weren't so nice for this a few versions ago

By now you can override the component class in child BPs

[hoary spear]

so whoever you slap the interaction component on, they hold interactive state, they show some widget indication, and the provide delegates to listen to etc

[thin stratus]

That wasn't a thing before

[merry pebble]

You recommend just keeping that on the PC, right after the message is made?

[quasi tide]

OnRep is life

Changing the character is a stateful change. So you want it in an OnRep. That way if anyone ever drops and returns or new people join or enter back into relevancy range, they get the correct value.

[thin stratus]

Which is usually done in c++ for this specific thing cause Blueprints is lacking the build in OnReps. At least some of them

The Client RPC is also wrong cause you don't know when the character will exist on the client after spawning it

[merry pebble]

lol this is why I am here. What is the best way for this to be done?

[thin stratus]

It's like telling your son to drive to the grandparents and you then randomly choose a time to call the grandparents and tell them to say hi to your son. You have no clue when he arrives.

Better is to have something tell you when he arrives, which are OnReps

[hoary spear]

C++

Im sure the grandparents would notify me, even if i asked in BP

[thin stratus]

I call my parents OnReps

[merry pebble]

I'm not to familiar with OnRep lol

[hoary spear]

It gets called on the client when the variable is updated on the server and succesfully replicated to the client

Finished replicating

[merry pebble]

I see. Would there be something else I need to do after I spawn and posses the character?

[hoary spear]

I think the clients controller already calls OnPossess event tho?

[merry pebble]

This is what's in my PC.

[hoary spear]

search for "Onpossess"

[merry pebble]

Ye, I see it

[hoary spear]

I believe that's called on the client aswell when a new char is spawned and possessed

should be fairly reliable

[quasi tide]

Doesn't look like it after a quick look

It's called only on server

During the Possess process

But you can bind to OnPossessedPawnChanged

[hoary spear]

Oh thats the one !

[quasi tide]

That gets fired off when the OnRep of Pawn is received

[hoary spear]

Perfect @merry pebble ^

[merry pebble]

Perfecto. Thank you all. I appreciate the feedback and the assistance 😄

[quasi tide]

Looks like it'll also fire on server

[thin stratus]

Blueprints has "OnControllerChangedEvent" in the Pawn itself too fwiw

It#s a bit backwards but could work

[hoary spear]

i feel like those are fairly new ?

both of them ?

[thin stratus]

Yop

[quasi tide]

This process is so spaghettified - just find something that works-ish

[thin stratus]

Please read the Network Compendium then

[torpid girder]

hello, maybe stupid idea of the data, i was wondering if i could replicate

    UPROPERTY(EditAnywhere)
    FDataTableRowHandle DataTableRowRef;

[thin stratus]

If you aren't familar with that, then you probably don't know a lot more

[torpid girder]

was that for me?

[hoary spear]

No

[torpid girder]

it seems you can replicate, but i bet there is a gotcha somewhere

[thin stratus]

No

[hoary spear]

It's less of a gotcha with references like that in my experience

[thin stratus]

DataTableRowHandles consist of a DataTable Asset and an FName for the Row

Both of those should allow replication

One is just an asset path

The other just an fname

[torpid girder]

that is what i saw

its just that it solved my problem doing player to player trading

and could be too good to be true

[thin stratus]

You should be able to replicate it just fine

[torpid girder]

the code looks fine

sorry too big

well this is awesome 🙂

[hoary spear]

Partly multiplayer related but not directly (its only an issue because of MP) ;

How does one usually init the animBP that relies on the PlayerState being ready?

I dislike my current ugly delay untill....

Guess i could leave it to null untill the controller is changed....

[dark parcel]

I hide my character until the posses is acknowldeged

[tardy fossil]

could use a state machine and only go into the main state when playerstate != null.. or maybe time to rethink your anim bp so it doesn't grab info from something else, and the data it needs is pushed to the anim instance

[strange apex]

Hello once again, I have a monitor that I want only 1 player to be able to use at a time.
i tried using branches with replicable values and custom events to run on server, but i am just missing the main way.

Simple explanation
whenever player gets close and CAN press the interact key, i want it to check if someone is already using it.

[hoary spear]

But then something else must know about the animBP , and rely on that exact animBP

[thin stratus]

OnReps over OnReps

Plug some Delegates into your OnReps

[hoary spear]

I prefer fetching (espesially with the async thread going on)

[thin stratus]

Your Interaction Event is missing a pin that passes through the interactionInstigator

If you add that and specify that on the caller side, you can save the current interactionInstagotr on that thing you are interacting with

And check if it's valid to deny further interaction

[strange apex]

What is a InteractionInstigator?

[thin stratus]

Whatever you use to identify who interacts

Character for example

[strange apex]

so something like this ? i have never used or seen that node

[thin stratus]

That's entirely not what i said :D

Your Interface Function

"Interaction"

Needs to pass something along that identifies the person who interacts

[strange apex]

so in the interface, i need to pass something that identifies the person... which is?

[thin stratus]

e.g. the Character that calls that event

Somewhere you are calling Interaction

[thin stratus]

Yeah, there you can pass in "self", given this is in the character

The only thing I wonder is, how are you gonna do this in Multiplayer if you only interact locally?

[strange apex]

Would a simple Custom event ( run on server) fix this issue ?

[thin stratus]

You'd need to use a ServerRPC before doing the whole Interaction Loop thing

But yes

[hoary spear]

We're doing it like this currently

seems ok so far

[surreal peak]

is the best you can network for chaos is basically the initial destruction cause?

[dark parcel]

Y the censorship 😅

[hoary spear]

Secret sauce is secret

[strange apex]

Are you also doing the " only 1 player can interact at one time "
if so, how does the logic look like after the invoking player input?

[dark parcel]

The interaction logic happend on server machine anyway

So u can easily nullified the interaction that happend after the first one

If that's Ur intention

Picture a door. Player will do server rpc. Then server will start opening the door. Any interaction when the door is being opened can just be ignored

[strange apex]

Well my intention is to make a actor usable only per person ( 1 at a time )
but i don't yet quite understand the proper setup

[dark parcel]

I think knowing which code should run on client and which should run on server would be enough to wrap your head around it

[hoary spear]

Im still working on that in my case as i need it to work with a dialogue plugin aswell

Replicating the interaction to everyone, while reacting to secondary interactions with refusal

[strange apex]

well the way I see it working is have something simple like a branch
where it would just check if someone is already using it, but currently i just don't know how to do that, as all i been told is keywords of stuff i never done.

a.k.a i never saw the logic before therefor idk how the logic should work (look)

[hoary spear]

my interactable is told when someone interacts, and can store that info (with repnotify)

[dark parcel]

I helped you with save/load system before. My suggestion is do single player first 😅
Not trying to brush you off but trying my best to give the most helpful advice I can give
Multiplayer is many times harder imo

[strange apex]

I know multiplayer is much harder, I saw many comments, and videos on that topic, but before I didn't have much of an idea of what I was making.
but this time I have a clear goal as I made a semi-complete Game concept document, with which i know what i want to achieve, and the only thing stopping me is Blueprints xD

but yeah i am watching many tutorials, and experimenting with stuff, and its working, just sometimes i get stuck at a "simple" problem like this one.

[dark parcel]

Blueprints is already a huge limitation for multiplayer to begin with. It will suffice for interaction only based game or turn based game but it won't be enough for shooter game or games that must address lag

don't let me stop what you want to do, but might help to know what the bar is before starting a multiplayer project

[strange apex]

Meant to be more like a "phasmo / lethal company / devour " type game ( same genre but different )

[noble sentinel]

Can anybody tell me why my linetrace isnt replicating between clients?

One client always see it as straight lines to same direction

Only server can see correct lines

while clients cant see any correct line except theirs

[mystic estuary]

These kind of games can be made using BPs only, but using C++ would facilitate the process a lot

[dark parcel]

What if I want my character to sprint? 👉 👈

[mystic estuary]

You can make it BPs, but the transition might be laggy depending on ping and packet loss

[dark parcel]

afaik the only way is to change the bit flag in the CMC which requires C++

any other implementation isn't proper or straight don't work

[mystic estuary]

Sprint can mean "increase the max speed", it can be enough for some people

You can do a server RPC that would do a multicast that would tell that certain player is sprinting, i.e. change its max walk speed to a higher value

It might be seamless with Mover 2.0. I haven't looked into it, but apparently it's going to improve the overall system

[dark parcel]

Even 60 ms would be unpleasant X_X.

[mystic estuary]

seamless for BPs*

[mystic estuary]

Have you tried that?

[dark parcel]

Yeah

used to follow multipalyer BP tutorials from youtube

all of them are scam imo

only one that works for me is delgoodie tutorial

The BP tutorials just show that it "works" but when one test it with real latency, even a little delay like 10 ms, it straight just broken

Rubber banding

[mystic estuary]

It's not really broken, it's laggy, that's all

[dark parcel]

I think at most might get away with delay only

[mystic estuary]

I know that it's unpleasent, but that's what you get by using things the way they were not intended to

[dark parcel]

Yeah, that's what I mean. in many cases just straight not playable, I don't find it acceptable to have my gun fire 1 second after clicking the mouse

[noble sentinel]

So should I stop making a 50 player pvp game with blueprints 🤨

[mystic estuary]

We are not saying that you must use 100% C++. We are saying that certain things would benefit a lot by using it

[solar stirrup]

Depends on what your game wants to do movement wise

[mystic estuary]

BPs are still a vital part of the development, the only issue is that some features should be done in C++ because BPs don't support everything

[solar stirrup]

Blueprints do not (currently) have access to the functions required to make custom predicted movement "perfect"

At least until Mover comes out stable enough apparently

[noble sentinel]

Which important features should be done in C++?

[dark parcel]

if you are using CMC, you should deffinitly work with how it is intended to be used

[solar stirrup]

Ideally everything. BPs are good for prototyping and quick iteration, but quickly become a mess especially if you also work with C++

At least a majority of your game should be C++ with Blueprints on top to make it easy to tweak in editor, but no gameplay code should be in Blueprints

[mystic estuary]

Usually things that are fundamental. For instance, inventory, movement, equipment, save system, and such. High-end features should be done in BPs though

[noble sentinel]

I guess using full blueprints also messes with the general game performance right?

[solar stirrup]

Really depends on what you're doing

There's a few games made only using Blueprints that run fine

[mystic estuary]

Don't think about performance unless it's an issue. Don't optimize things that don't need it

[noble sentinel]

a multiplayer fps game with walking, crouching and opening doors being only mechanics

I guess it wont be that bad with blueprints?

[solar stirrup]

Sounds simple enough

[mystic estuary]

From your profile I see that you're making a backrooms game. I guess the majority can be made in BPs easily. If the movement will be done in it as well, it'll be fine, but a bit laggy. Doors can be done in BPs seamlessly really, no C++ is required to get same results

[noble sentinel]

The problem is Im not making a simple walking simulator, so things get mess too early

Like firing mechanic, which is a mess

[dark parcel]

Shooting isn't simple for beginners like me

What client sees and the server sees isn't the same

[mystic estuary]

Depends what kind of shooting it is really

[noble sentinel]

This supposed to be a firing bullet mechanic

[solar stirrup]

If you're making a esports fps like CS or Valorant then yeah no, Blueprints won't be able to "easily" do that kind of shooting

[dark parcel]

ooof

[solar stirrup]

If you don't need esports level of verification, you can add some leniency and Blueprints can probably do it fine

[mystic estuary]

Essentially you should organize things better. Use functions and different event graphs, and you'll be fine

[dark parcel]

how would you do it in blueprint? just say yes to client?

context is verifying hit

[solar stirrup]

I didn't say zero verification hah

[noble sentinel]

Im also a unorganized person in irl so I guess habits cary over from there

[solar stirrup]

I'd just check the hit is "plausible"

Cheaters are gonna cheat, just don't give them a big red "kill everyone anywhere" button

[mystic estuary]

They're making a backrooms game. I guess cheaters don't really matter. The game is intended to be played with friends, isn't it?

[noble sentinel]

well no, its supposed to be something like scp:sl

So its pvp against lots of other people

[solar stirrup]

SCP: SL's movement is utterly bad, Unreal's default is already miles better heh

[noble sentinel]

I would have easier time if I was making a simple co op walking simulator...

[solar stirrup]

So congrats on having that going at least

It's more of an arcade game so you don't need esports level of accuracy

[dark parcel]

co-op puzzle game would be totally walk in the park with bp only imo

compared to shooting

[solar stirrup]

And in Blueprints you're not gonna get rewind and all going

At least not without ripping your hair out in the process

[dark parcel]

which what shooting game needs 😛

[solar stirrup]

Nah

Esports? Sure

[noble sentinel]

I did that before so trying to doing a pvp shooter was a big jump for me, at least I know what actually Im doing this time, unlike before

[solar stirrup]

Arcade pvp game? Don't bother, just do some sanity checks to ensure the shot could've probably been done and accept it

[noble sentinel]

My shooting mechanics are interestingly working too good

But Im having problems with simpler things

Replicating is too annoying

[solar stirrup]

You'll get better at it over time

[noble sentinel]

Like my line trace code is replicating on soldiers gun line traces, but same code dont replicate when I use that on monster

[solar stirrup]

Making a multiplayer game is a lot more complicated than a singleplayer game, it's to be expected

[noble sentinel]

I heard ue5 is the easisest engine

to make multiplayer

They say unity is much harder

I dont want to imagine

[solar stirrup]

Unity has basically no multiplayer solution

You'd have to roll a third party one yourself

Or write your own

[noble sentinel]

I dont get why indie developers doing multiplayer games on unity, like they are always having some major base issues that cant be solved

[solar stirrup]

In the end you choose the engine that fits your project's requirements.

[noble sentinel]

Can I also ask if you can see any problems in this code?

I cant make it replicate to clients.

[dark parcel]

why do u have to do the line trace on every client tho?

[solar stirrup]

You don't want to do your linetrace on the server

You do it on the player that wants to shoot, then have them send the result to the server

The server checks the hit is plausible, then accepts it or not.

[noble sentinel]

hmm, I will try that now. Its working on my gun codes tho, thats why Im confused

Now client cant even see line traces of each other(server cant see their traces as well), and they still see server line traces wrong.

[solar stirrup]

Clients shouldn't see traces of others anyway

[noble sentinel]

I mean debug mode

[solar stirrup]

Yeah that's really not going to work

[solar stirrup]

this is a good base to start with

[noble sentinel]

I changed it

now I only multicast the line trace

[solar stirrup]

You shouldn't even multicast

Why do you want to send it to other clients?

[noble sentinel]

Shouldnt I do that?

If I dont do that, how other clients will detect it hit somebody?

If line trace hit to somebody, its applies damage

[solar stirrup]

Other clients don't need to know that though

Damage should be applied on the server

Health should be a replicated property, the server is the authority

[noble sentinel]

but

Before I came here

I got this answer, and it fixed my issue

about my line trace bullets

[solar stirrup]

Well uh

[noble sentinel]

Didnt that supposed way?

[solar stirrup]

No

That's a very bad way of doing things

[dark parcel]

what's the purpose of the trace on other clients?

they have no business

[noble sentinel]

If I hit somebody with my linetrace, I will apply the damage

[solar stirrup]

Servers applies damage -> health is replicated to clients as a replicated property

[dark parcel]

But other clients doesn't need to run the line trace or apply the damage

[solar stirrup]

Clients dont apply damage, that's bad

[dark parcel]

server decide

server damage

[noble sentinel]

so should I run it on server?

[dark parcel]

then server replicate the health to clients

one way I seen how people do it is send time stamp to server with the simulation from client machine. The server then rewind and play the simulation on it's machine to validate the hit

[noble sentinel]

I dont really get it...

at least running line trace only on server looks like fixed the replication problem, I guess

[dark parcel]

What does even the trace do? Check if it hit something?

Client and server don't see the same thing, it all depend on delay

client may hit something on his world but when the server does the same trace, it doesn't necessarily end up the same. Always add lag when testing MP

easy mode is probably to just check the line trace hit on client and server just say yes. You can add some validation if you want but I don't know enough on what to add

[noble sentinel]

Gun line trace for players check for bullet traces, than apply damage if hit
Line trace for monster check for hit in short range, and if it hit to a human class, playing an eating animation while applying full health damage to person

[dark parcel]

You are doing the line trace on server

Lets say u shoot something

but u have 1 second delay

So in your screen you may hit something

but in the server, the hit is invalid because the target already moved by X unit in 1 second

[noble sentinel]

Hmm

That can be a problem

[dark parcel]

Also if u shoot using Server RPC if u have 1 second delay, ur gun start shooting 1 second after you press left click

[noble sentinel]

How bad that lag can be? My game isnt very script heavy so I dont think It will have that much delay but

Im not sure

[dark parcel]

imo action packged game without client prediction, server rewinding, reconciliation cannot produce a suitable result for me

but I may be wrong

just can't see how it can be tackled without them

For shooting game? pretty bad, even 15 ms won't be good imo. If my tool is bp only, I will stick with puzzle walking game

[solar stirrup]

Network latency

[dark parcel]

but the smarter people say otherwise here

[solar stirrup]

The issue is ping not performance of your game

[dark parcel]

so maybe im wrong

[noble sentinel]

Game is kind of found footage camera low fov while guns have incredible recoil so I dont think anybody would care about competitive low delay aspects, but yeah I can imagine it would be bad with delay

[solar stirrup]

You don't want pixel perfect verification on the server

The client says it hit a player, the server verifies it could've been possible

In Blueprints you're not getting rewind

[dark parcel]

So in this case don't run server rpc for your line trace

just do it locally

Well it's probably better to check ping too

getting killed by laggy player sucks

like u already went to another room but suddenly drop dead

[noble sentinel]

but how can I send data to server if I do it locally?

[dark parcel]

You can just send a server RPC saying a hit is done on X player

can't help you on the verification part

my idea of verification is sending time stamp to server and let server simulate the data to the past and see if the hit is possible

[noble sentinel]

I didnt understand this

Isnt run on server is already server rpc

[dark parcel]

sure but the line trace can be done locally

if hit something then run server RPC saying I hit something

[noble sentinel]

oh you mean after I make line trace, it should send a run on server event, right?

[dark parcel]

if u do the line trace on server and u have delay (everyone have delay obviously, the question is how much)

then in ur screen sum1 might be in your crosshair

when the RPC reached the server and the server line trace, it's not gonna hit anything

if u shooting static target then sure it will hit

The moment they start moving, Line Trace on server is deffinitly not gonna work

[noble sentinel]

Here, doing line trace locally than sending server event to apply damage

But damage isnt applying

[dark parcel]

dont cross pin like that

you can pass in the actor that is hit thru the RPC

understand that everyone is running their own instance of the game

this is basically what u are doing on server machine

i dont even know if it gonna run the line trace node

never done something wrong like this

[noble sentinel]

You just opened my mind, I managed to fix it

[dark parcel]

this is still worrying tho

[noble sentinel]

yeah I will also check for them

[noble sentinel]

whats the problem with red parts tho?

is valid checking for if it actually hit something

[dark parcel]

lets say I am the host

u are the client machine

that LineTrace node was done in your machine

I know nothing about it

so when u pass in data that was never run in my machine, most likely it will just be null

Remember this, the only way for Client to COMMUNICATE with server is thru Server RPC

[noble sentinel]

so I need to pass everything to server about linetrace, except linetracing action itself, right?

[dark parcel]

so u want to pass any data to the server thru function argument

[dark parcel]

w/e data u want to send to the server, send it thru function argument

easy mode atm is just to allow cheaters and just be a yes man to client

[noble sentinel]

I will let my players create their anticheat, instead of working 5x more on multiplayer and delivering a half made game

lol

[dark parcel]

You can never get rid of cheaters

even AAA companies can't

[noble sentinel]

yeah but at least decrease them

[dark parcel]

but there is a standard

in this case, it's not even about cheating

because a player with 300 ms, can u shoot u in their machine.

Then u walk away to another room thingking you are safe

but suddenly u got killed by the laggy player

[noble sentinel]

It would be suck

[dark parcel]

yup

for PVE maybe it's okay I dunnoe

who cares if the boss dies later

[noble sentinel]

I am trying to make everything work rn, If I had more time after actually finishing the game, I can probably come back to fix this issues.

Even making it barely work is an achievement for me rn

[dark parcel]

don't limit your self with BP 😛

[mystic estuary]

if they don't know C++, they can't do anything but BPs

[noble sentinel]

So this is my new and clearer working code

thank your for help!

[noble sentinel]

true

[dark parcel]

My only regret is I didn't study C++ earlier

still in learncpp.com but I can already do what I couldn't do in bp

Loading Screen, Editor Tool, etc

[mystic estuary]

You can make some editor tools in BPs though

As for loading screen, there are plugins for that, you are not forced to do C++ yourself

[dark parcel]

I had to do something specific

[noble sentinel]

I only know some basic things in C++, Its too scaring for me to let these shiny nodes go and work on text...

[dark parcel]

Grab all material in a folder and change it's static bool param and other settings

not sure if that's possible in bp

[mystic estuary]

static bool?

[dark parcel]

for materials

[mystic estuary]

But you are able to change material parameters in BPs

Materials are pretty high level really, so they must support that

[dark parcel]

maybe there's a way but I don't know where

im not talking about diving into a material and changing the param

I have to set hundreds of materials at once

[dark parcel]

Yeah not that

it's the Material Asset it self

so i got my self a tool that pick a folder

and it will auto change all the material param in editor (the .uassets)

[mystic estuary]

wdym by that

[hoary spear]

Its a static switch

Editor only

[dark parcel]

there are hundreds more material

manual labour is out of question

[mystic estuary]

Uh, I'm not sure whether that will be affected with these functions 🤔

[hoary spear]

You cant, as they are runtime ones

Changing the switch requires recompilation of shaders

[dark parcel]

yup

[noble sentinel]

Im trying to make actor give different responses to different damage types

but other characters cant understand different damages

They act like I always using normal damage

Is this a replication problem?