#multiplayer | Unreal Source | Page 553

chrome bay Jul 3, 2020, 2:44 PM

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Ah I was refering to DOREPLIFETIME_CHANGE_CONDITION but it doesn't take a param for the notify

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You may need to do it manually

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I've had to do that to override 'private' properties in the actor class a couple of times

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TF for reflection

floral crow Jul 3, 2020, 2:45 PM

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I also noticed OnRep_Controller doesn't always call
@thin stratus That'd explain a weird bug I've been facing where player input never gets enabled, as I enable it on the OnRep_Controller. Fckkk

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But it happens quite rarely

thin stratus Jul 3, 2020, 2:45 PM

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@chrome bay Yeah it's not booting up with just the double register

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Guess I have to somehow do it manually.

chrome bay Jul 3, 2020, 2:47 PM

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Yeah there is a way

floral crow Jul 3, 2020, 2:50 PM

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Btw, what I did to get around this sort of issue (when I rewrote the initialization process) I used a transition map to the ingame and spawned any actors I considered to be core for my game there, and waited for clients to send an I'm Ready signal meaning that they have everything they need (based on BeginPlay and/or OnRep calls from this core actors). Once all clients have sent their signal, TransistionGameMode calls the seamless travel to the ingame

thin stratus Jul 3, 2020, 3:04 PM

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DISABLE_REPLICATED_PROPERTY(AYourCharacter, Controller);
DOREPLIFETIME_CONDITION_NOTIFY(AYourCharacter, Controller, COND_None, REPNOTIFY_Always);

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That works, I guess

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They allow registering disabled variables

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But not registering something that is not disabled

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Sooo yeah

floral crow Jul 3, 2020, 3:08 PM

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Do you know how can I disable the 60 second timeout that UE4 has built-in ?

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or at least increase that timeout threshold?

jovial stream Jul 3, 2020, 3:33 PM

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I cannot switch gamemodes between levels in the packaged version of my game, and it only works in PIE, how can I fix this?

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📎 unknown.png

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I am using Game Mode Class Aliases

polar wing Jul 3, 2020, 3:54 PM

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Anyone know if the grid spatialisation feature of the replication graph factors height into the equation?

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Like, is it mostly x,y or does it also factor in z?

slate veldt Jul 3, 2020, 4:09 PM

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Hi all - In editor (not with Clumsy) what's the best way to simulate lag. It doesn't appear that the command Net PktLag=200 works anymore

I've found reference to network emulator profiles in the c++ for the engine, complete with Editor Widget for selecting said profiles, but cannot find the actual menu in editor 😂

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Typical - manage to find it straight away after I ask!

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floral crow Jul 3, 2020, 4:17 PM

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I want to change those values by setting them on DefaultGame.ini . How do I achieve that?

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Basically, how do I point to the NetDriver file in [Section]?

[Section]
Key=Value

Based on this https://docs.unrealengine.com/en-US/Programming/Basics/ConfigurationFiles/index.html

Configuration Files

Text files containing property settings for configuring gameplay or engine behavior.

meager spade Jul 3, 2020, 4:28 PM

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NetConnectionClassName=OnlineSubsystemSteam.SteamNetConnection
bNeverApplyNetworkEmulationSettings=true```

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somethingl ike this

leaden atlas Jul 3, 2020, 4:59 PM

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is there any documentation on AGameNetworkManager? I'm trying to disable client movement checks

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also i keep trying to check these two off but they keep unchecking

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📎 unknown.png

floral crow Jul 3, 2020, 5:33 PM

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NetConnectionClassName=OnlineSubsystemSteam.SteamNetConnection
bNeverApplyNetworkEmulationSettings=true```

@meager spade I'm using the built in NetDriver, I've not specified anything on it so far. I'm running the game on a cooked build. Any idea how to point at the default NetDriver?

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I'm starting the server with a command line execution like:

UE4Editor.exe "%CD%\..\Immortal.uproject" /Game/Immortal/Maps/PreGameLobby?GameModeConfig=FourPlayerMode?MapName=Frontiers -server -nosteam -log LOG=ServerLog.txt

And clients with:

UE4Editor.exe "%CD%\..\Immortal.uproject" 123.456.789.1 -game -log -Secret="1234" -ResX=1280 -ResY=720 -WINDOWED

crystal crag Jul 3, 2020, 6:44 PM

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With 4.25 I can't seem to get a dedicated server process to be launched so I can see the server output when running PIE

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Am I missing something?

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📎 unknown.png

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I would think that would launch a separate dedicate server window so I could see the server output...

floral crow Jul 3, 2020, 9:11 PM

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OMG, where can I find any information on what a NetDriver is, how to properly use it, how to modify it, or at least some light on how the hell am I supposed to deal with it. It's been over a day making almost no progress. The lack of either official documentation or community resources is serious...

fleet raven Jul 3, 2020, 9:14 PM

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a net driver manages incoming connections and replication for a multiplayer server

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why do you need to modify it?

floral crow Jul 3, 2020, 9:16 PM

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I want to increase the timeout threshold because we're running a completely unoptimized build and having clients drop out during game initialization

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I want to change those values by setting them on DefaultGame.ini . How do I achieve that?
@fleet raven https://discordapp.com/channels/187217643009212416/221799385611239424/728645607048085525

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But anyways, I'm curious as to why this is exposed for me as a programmer. What can I get out of it?

fleet raven Jul 3, 2020, 9:17 PM

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[/Script/OnlineSubsystemUtils.IpNetDriver]
ConnectionTimeout=30.0

floral crow Jul 3, 2020, 9:18 PM

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Thanks a lot !!!!

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How do you know that IpNetDriver is the right one though?

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Where's that specified as the default one

fleet raven Jul 3, 2020, 9:18 PM

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that's the default unless you're using steam sockets or something similar

floral crow Jul 3, 2020, 9:19 PM

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I'm running with the -nosteam flag, so I bet I'm not using any steam related driver

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Also, how do I know that the right module is OnlineSubsystemUtils? What tells me that?

fleet raven Jul 3, 2020, 9:20 PM

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this is set up as the default in BaseEngine.ini NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="/Script/OnlineSubsystemUtils.IpNetDriver",DriverClassNameFallback="/Script/OnlineSubsystemUtils.IpNetDriver")

floral crow Jul 3, 2020, 9:20 PM

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Is that tribal knowledge or can I learn it from looking at an specific place in the engine source

fleet raven Jul 3, 2020, 9:21 PM

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that's just the module it is in

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you can always tell by the path

floral crow Jul 3, 2020, 9:22 PM

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Isn't what I highlighted the module?

📎 unknown.png

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Now that I think about it I've read somewhere that things like ENGINE_API are module declarations

fleet raven Jul 3, 2020, 9:23 PM

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that also tells you the module

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but not all classes have this

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that macro is used to export the class and its methods outside of its module

floral crow Jul 3, 2020, 9:26 PM

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Ok, that goes a bit outside of my knowledge... Is that useful so that if I compile the entire module as a DLL, things marked with say ONLINESUBSYSTEMUTILS_API will be the ones publicly exposed?

fleet raven Jul 3, 2020, 9:26 PM

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yes

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trying to use a function that is not defined in the header and not marked with MODULE_API from another module will give you a linker error

floral crow Jul 3, 2020, 9:27 PM

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Interesting... Feels good to understand some of the dark magic MACROs

fleet raven Jul 3, 2020, 9:27 PM

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marking a class as MODULE_API has the effect of marking all of its functions

floral crow Jul 3, 2020, 9:27 PM

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Thanks again! After reading this, most of my classes have the GAMENAME_API for no reason... as I'm not building any other module

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Does that incur in any performance impact during builds?

fleet raven Jul 3, 2020, 9:28 PM

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you could remove it and nothing would change

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it doesn't really matter

floral crow Jul 3, 2020, 9:28 PM

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Oh ok, that's what I wanted to know

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Last question, Why do I always start with /Script/ when specifying these classes ([/Script/OnlineSubsystemUtils.IpNetDriver])

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Will all my config files start with /Script/ModuleName.ClassName or could that change based on something?

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As I'm thinking of exposing some of my custom classes to this sort of configuration in .ini files

turbid sky Jul 3, 2020, 9:56 PM

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how to replicate Ultra Dynamic Sky?😩

meager spade Jul 3, 2020, 9:58 PM

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it would be /Script/YourGameModule.ClassName

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like /Script/Kaos.MyPlayerController

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dropping the Prefixing letter (A/U)

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and what config file it uses is based on the uclass Config specifier, for DefaultGame.ini you would use Config = Game in your UCLASS

fleet raven Jul 3, 2020, 10:07 PM

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/Script/ModuleName is the package that your class will be exposed in (automatically generated by UHT, never something else)

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I think you can somehow specify that the config section should use a custom name instead of the path to the class, but this is very rarely used

floral crow Jul 3, 2020, 10:20 PM

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Thanks again to both. I was already able to tweak the config values from IpNetDriver 🥳

clear copper Jul 3, 2020, 10:37 PM

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Can someone help me figure out why this is working when I have one player, but not when I have more than one?

📎 unknown.png

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That event is in my GameMode blueprint and gets called when the host presses the start button, seen here

📎 unknown.png

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If I'm the only one in the lobby, it works totally fine, but if I add another player, then we both get stuck in the loading screen forever and the servertravel doesn't work

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It's an exact copy of the steam multiplayer demo

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Nevermind, its because i wasn't launching the game as stand alone

unkempt tiger Jul 4, 2020, 12:17 AM

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is ForceNetUpdate relevant to RPCs?

meager spade Jul 4, 2020, 12:17 AM

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no

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well kina

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it forces the actor to replicate its properties

unkempt tiger Jul 4, 2020, 12:18 AM

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Alright, thanks

whole osprey Jul 4, 2020, 12:50 AM

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Wondering if someone is able to help me out here? Currently trying to make a transform on both server and on client (exact same nodes). However, for some reason on the client end the rotation is completely off compared to the server and I have no idea why. I can post a screenshot if that will help.

wicked brook Jul 4, 2020, 1:13 AM

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do you have smooth sync plugin? Without seeing anything, that would probably get you what you want with minimal effort

rigid summit Jul 4, 2020, 1:21 AM

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When I use mouse left it doesn't work, I think is a simple problem, does anyone see an error here??

📎 unknown.png

wicked brook Jul 4, 2020, 1:22 AM

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What bp is that in? Actor, Level or what

rigid summit Jul 4, 2020, 1:23 AM

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Widget

whole osprey Jul 4, 2020, 1:23 AM

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Didn't even know that plugin existed, ill most likely look at getting it would make things 1000 times easier, thanks for that.

wicked brook Jul 4, 2020, 1:23 AM

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yeah it was free a month or two ago. it works instantly with barely any setup

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@rigid summit did you try add some print strings to debug?

rigid summit Jul 4, 2020, 1:24 AM

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When I press with my Controller or Enter it works, but with my Mouse click it doesnt

wicked brook Jul 4, 2020, 1:27 AM

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that a button?

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what is the click method set to

rigid summit Jul 4, 2020, 1:29 AM

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When I click a lot of times it works wtf

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Yea this is an button on menu

wicked brook Jul 4, 2020, 1:30 AM

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add a print string to see if it is registering every time

rigid summit Jul 4, 2020, 1:32 AM

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Not working

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The gamepad and enter key works but not my mouse clic

wicked brook Jul 4, 2020, 1:32 AM

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try on pressed instead of clicked and see if there is a difference

rigid summit Jul 4, 2020, 1:33 AM

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OMG thanks

silent phoenix Jul 4, 2020, 4:52 AM

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Will a multicast from gamemode play on all clients regardless of relevancy / distance / etc

fossil spoke Jul 4, 2020, 5:29 AM

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Any RPC on the GameMode will never be called on Clients.

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Client do not have a GameMode

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Only the Server has a GameMode

twin juniper Jul 4, 2020, 5:44 AM

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use gamestate instead perhaps?

soft relic Jul 4, 2020, 8:36 AM

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does AWS work fine on html5?

rose egret Jul 4, 2020, 11:25 AM

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😰

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https://file.io/FIthlGNA
I am suck at FP spectator

weary badge Jul 4, 2020, 1:04 PM

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Hey, I'm having an issue with replication.
The clients keep shooting their projectile to the Location XYZ 000 instead the clicked actors location.

Does anyone know how to solve this ?

📎 unknown.png

grizzled stirrup Jul 4, 2020, 1:06 PM

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If SetLifeSpan is set on the server, does it also need to be set on the client for an Actor to be destroyed clientside?

winged badger Jul 4, 2020, 1:07 PM

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destroyuing an actor does replicate

weary badge Jul 4, 2020, 1:07 PM

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As far as I know, you dont have to

winged badger Jul 4, 2020, 1:07 PM

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and setlifespan is just destroy ona timer

weary badge Jul 4, 2020, 1:08 PM

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The server will call the logic to destroy the actor on given clients

grizzled stirrup Jul 4, 2020, 1:09 PM

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Thank you!

winged badger Jul 4, 2020, 1:09 PM

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@weary badge and how do you imagine the RMBTargetLocation gets to the server?

weary badge Jul 4, 2020, 1:11 PM

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That's basically my issue.
I tried setting it on replicate
and tried hooking it to a custom event that is run on server

grizzled stirrup Jul 4, 2020, 1:12 PM

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You aren't actually sending that vector though

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You are using the Server's version of that vector

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Which is 0,0,0

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You'd have to pass the vector as in input to the RPC

winged badger Jul 4, 2020, 1:13 PM

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replicating only works server => client

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in order to send any data to the server, it has to be as a payload on the server RPC

grizzled stirrup Jul 4, 2020, 1:13 PM

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Zlo, in general should SetLifespan only be called on the server?

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Or does it not matter if both client and server run the same "Disable" function

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That sets lifespan

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I can gate with an authority check but not sure if it just doesn't really matter

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Say for example a projectile that has exploded

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There might be a second or two before it should be destroyed to fully play out FX

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I think best practice might be if the actor is still replicating and not torn off, set the lifespan / destroy on server only

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If it is torn off then destroy on both client and server

winged badger Jul 4, 2020, 1:19 PM

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i tend to hide the actor/disabl;e collisions

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on each machine separately, when its done

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and leave it hanging for a few seconds

grizzled stirrup Jul 4, 2020, 1:20 PM

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Yeah I do all the visual stuff on each machine too, do you tear it off there too and destroy manually on each client?

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Or just destroy on server after a short delay

weary badge Jul 4, 2020, 1:28 PM

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@winged badger @grizzled stirrup Thanks

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Took me a bit of time, but the solution was fairly simple

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Basically I had to have an input on the event that holds the value that I want to pass on to the server

meager spade Jul 4, 2020, 2:27 PM

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@grizzled stirrup we don't tear off

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we just hide, then have server repl the removal

grizzled stirrup Jul 4, 2020, 4:02 PM

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Thanks!

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I guess tearing off is only really useful if you have an actor that will be around for at least a few seconds but is completely network irrelevant like a ragdoll that doesn't instantly disappear right?

trim gale Jul 4, 2020, 4:57 PM

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Has anyone successfully tested steam "advanced session plugins" for multiplayer? Does it only work locally? Any tried and tested methods for online multiplayer?

jovial stream Jul 4, 2020, 6:01 PM

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@trim gale Yes, it works locally and online multiplayer, and surprisingly painlessly

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its very easy to get up and running

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heres an awesome tutorial series to get started with if you need it https://www.youtube.com/watch?v=d4gQSXALyHU

YouTube

DevSquad Learning Hub / Game Dev Courses

Project Setup - #1 Unreal Engine 4 Steam Multiplayer Essentials

Hey there DevSquad, today we setup our project to work with steam multiplayer, setting up visual studio, the advanced sessions plugin along with integrating the steam API into our Unreal Engine 4 project.

At the end of this video we'll be ready to start working on some multip...

▶ Play video

trim gale Jul 4, 2020, 6:11 PM

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hey @jovial stream, thanks for the link, I tried setting it up using: https://www.youtube.com/watch?v=ke3kmK6bvT0&t=760s, seems it's out-dated.

YouTube

PyroDev

Steam Multiplayer - Advanced Steam Session - Unreal Engine

Hey all,
today we are gonna work on the integration of the Advanced Steam Session Plugin

https://forums.unrealengine.com/community/community-content-tools-and-tutorials/41043-advanced-sessions-plugin

[/Script/Engine.Gam...

▶ Play video

jovial stream Jul 4, 2020, 6:17 PM

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I tried the exact same video and it didnt work for me either lol

trim gale Jul 4, 2020, 6:17 PM

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Oh damn 👍😅

unkempt tiger Jul 4, 2020, 7:46 PM

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guys, I wana ask you all about something that's been really bothering me and planting seeds of doubt in my design: do you feel that if you do 'what the engine wants you to do', the results are often less performant than your own re-invention of the wheel? I found this was the case when implementing replication for physical props (server simulates, and props should smoothly interpolate between their states on the client)

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for example in this^ case, I'd expect what the engine would 'like me to do' is have each physical object take care of its own, by sending out a multicast of position/rotation data, receive it on the other side, and interpolate through a snapshot history, which resulted in: https://gfycat.com/EnragedThoughtfulFlyinglemur

Gfycat

fleet raven Jul 4, 2020, 7:47 PM

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a specialized solution will always outperform a generic one

unkempt tiger Jul 4, 2020, 7:47 PM

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instead batching them and passing their data through a manager actor results in this: https://gfycat.com/WeeValuableHoatzin

Gfycat

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Yes @fleet raven this does make sense

fleet raven Jul 4, 2020, 7:48 PM

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you just have to decide if the better, specialized solution is worth the time it takes to create and maintain it

unkempt tiger Jul 4, 2020, 7:49 PM

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But then the question is raised, why is there even something the engine 'expects you to do'?

fleet raven Jul 4, 2020, 7:49 PM

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where do you see the engine expecting you to do that?

unkempt tiger Jul 4, 2020, 7:49 PM

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like, the documentations / code comments / UE4 projects' source codes all suggest that each actor takes care of its own

fleet raven Jul 4, 2020, 7:49 PM

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the expected solution would be to tick "replicated movement" and use the physics replication system

unkempt tiger Jul 4, 2020, 7:49 PM

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(I didnt know there was a physics replication system :V)

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how does it perform? does it have jitters / any specific artifacts?

fleet raven Jul 4, 2020, 7:50 PM

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I've not experimented enough with it to say

clear copper Jul 4, 2020, 9:03 PM

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I have an issue where I have a variable in my playercontroller called Investigator. It's just a string. When I change it as the host, everyone can see it change in the UI. But when I change it as the client, the server doesn't see it. As the host, I have an array of connected player controllers, but when the client updates theirs, these changes aren't sent back to the server. I've made sure the variable is replicated. Any suggestions?

autumn bramble Jul 4, 2020, 9:10 PM

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Are you sending it to a game mode? PCs can't talk to the game mode directly so you need to send the information through a game state

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Or maybe a player state one of those two

clear copper Jul 4, 2020, 9:12 PM

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Ah thats it

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Yeah I just tried to get the game mode from my client's PC

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and it says cast failed so

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looks like that's it

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the client can talk to the GameState?

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The way it's setup now is, on EventPostLogin in the GameMode, it takes that player controller and adds it to an array ConnectedPlayerControllers. In the Lobby, when a player changes their Investigator name, I save it to the investigator variable in their PlayerController, then tell the GameMode to loop through every PC in the ConnectedPlayerControllers and update the names for each player. I guess the issue is that when the client changes their name and that variable gets set to the new value, their PC in the GameMode's ConnectedPlayerControllers array doesn't reflect that new value. Should I move this stuff to GameState?

autumn bramble Jul 4, 2020, 9:24 PM

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Yeah take a look at the network compendium for a better description

📎 3b56a6d9880503753f86f445564c7ed8.png

clear copper Jul 4, 2020, 9:24 PM

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Ah right I totally forgot about that thing

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ok thanks, I'll run through again

autumn bramble Jul 4, 2020, 9:25 PM

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issue is tutorials don't really go into game states and player states so the only way to get a grip on this is a 111 page document which is pretty easy to forget

clear copper Jul 4, 2020, 9:25 PM

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lol yeah the epic tutorial does all online stuff just with game mode

autumn bramble Jul 4, 2020, 9:25 PM

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One day I will read past the first 10 pages 😄

clear copper Jul 4, 2020, 9:25 PM

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So every player's PlayerState is visible to every player?

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Well, I'll just read the doc and figure it out

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thanks

autumn bramble Jul 4, 2020, 9:26 PM

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That's what the pie chart says

📎 9b614ea60ea9ad0610003cf73900a7d7.png

clear copper Jul 4, 2020, 9:26 PM

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Very Helpful

autumn bramble Jul 4, 2020, 9:26 PM

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That's a ven diagram jeez I'm out of it tonight

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http://cedric-neukirchen.net/Downloads/Compendium/UE4_Network_Compendium_by_Cedric_eXi_Neukirchen.pdf

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here's the link if you need it

twilit radish Jul 4, 2020, 9:29 PM

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Hi, I keep seeing people in here talk about Steam and Unreal integration. What exactly does Steam provide if I may ask that’s useful in Unreal?

clear copper Jul 4, 2020, 9:33 PM

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Lots of stuff

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Achievements

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Friends list

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built in user names

twilit radish Jul 4, 2020, 9:34 PM

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As in for networking :)

clear copper Jul 4, 2020, 9:34 PM

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those are networking besides achievements

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but it also gives you more lobby functionality

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inviting friends from your friends list etc

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but as far as actual netcode

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nothing that I know of

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Just more tools on the front end

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Here's the page on the subsystem

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https://docs.unrealengine.com/en-US/Programming/Online/Steam/index.html

Online Subsystem Steam

An overview of Online Subsystem Steam, including how to set up your project for distribution on Valve's Steam platform.

twilit radish Jul 4, 2020, 9:36 PM

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Thank you, going to read that 👍

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I see this being mentioned in there.

Lobbies are essentially chat rooms that exist as peer-to-peer instances on Steam's backend service.
Does that mean listen servers can send data to clients through Steam, thus functioning as relay, or did I understand this wrong?

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Also, what is the ‘shared cloud’, is that the Steam workshop?

lost inlet Jul 5, 2020, 1:09 AM

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shared cloud uses ISteamUGC in the Steam OSS, so yes

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also that does not imply anything about relays, but steam networking relays are supported through the Steam OSS

chrome bay Jul 5, 2020, 10:04 AM

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Sooooo

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physics code enters the network prediction plugin. not look at the changes yet, but is very interesting
https://github.com/EpicGames/UnrealEngine/tree/master/Engine/Plugins/Runtime/NetworkPrediction

novel siren Jul 5, 2020, 11:29 AM

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hey all. Got an replicated PvE set up I am working on. In my player I wrote some stuff to calculate damage after defences. It ran without issue. I then realised the enemies in the environment would need to make the same check. Since they share the same base class, I just moved the calculations over to the parent class. Now, when the enemy attacks it works fine (for the enemy), when the player attacks, it skips over the calculation. Could use some help seeing where I made my mistake.

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just ran it in listen server mode - and found 2 issues. The client has the same issue as the client in the dedicated. The second issue is the player who is server does double damage

polar wing Jul 5, 2020, 11:41 AM

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@chrome bay 😮 that's sexy

winged badger Jul 5, 2020, 11:49 AM

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@novel siren without seeing the code we are just rubber duckies

novel siren Jul 5, 2020, 11:52 AM

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It's currently BP for prototyping, I worked out what is causing the listen server issue (so we can ignore the cause). Screening it now

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I flagged my stupid mistake on the listen server - and we can ignore the false branch on the hit. I cut out the calculations for the collision areas and the drawing the debug sphere (all of those work properly and are not the issue). The node in the red box towards the end is what is not running - it just returns 0, with a break point it goes right over it.

On the server, for the NPC there nearly the same set up (a few minor differences because the enemy calculates base damage differently) but it calls the same defense check and it works there

📎 unknown.png

winged badger Jul 5, 2020, 12:02 PM

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you calculate defenses if your target is NOT dead and can NOT take damage

novel siren Jul 5, 2020, 12:02 PM

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umm

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let me clarify

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it's calling the function

winged badger Jul 5, 2020, 12:04 PM

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aside from that how do you get EquippedAttackPower and AttackType?

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it is where any network issues might occur

novel siren Jul 5, 2020, 12:04 PM

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those are all valid

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I checked those

winged badger Jul 5, 2020, 12:05 PM

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and whats the end result?

novel siren Jul 5, 2020, 12:05 PM

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again prior to making the function in the red box, the code in there was directly in the chain and it worked

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the value 70 goes in, I expect 64 coming out.

📎 unknown.png

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if I hit frame skip or step into, it does NOT enter the function it goes past it

winged badger Jul 5, 2020, 12:07 PM

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which means that function might not be the problem

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the branch immediately preceding that is very suspect

novel siren Jul 5, 2020, 12:07 PM

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that branch works

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again outside of server mode it runs properly

winged badger Jul 5, 2020, 12:07 PM

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it shouldn't, not if the functionality is what the function names imply

novel siren Jul 5, 2020, 12:08 PM

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ah the name is slightly off, that should say cannot take damage

winged badger Jul 5, 2020, 12:08 PM

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it should cay CanTakeDamage and not be NOTed

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🙂

novel siren Jul 5, 2020, 12:10 PM

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actually what it should say is 'bIsPlayerInvincible'

winged badger Jul 5, 2020, 12:10 PM

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and attack type is also valid?

novel siren Jul 5, 2020, 12:10 PM

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yes

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I expect regular and get regular

📎 unknown.png

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and the target is valid

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Interesting now it is actually going into

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(I unhooked the pins and rehooked them and it began to 'work' again)

#

However now the calculations are fouling up. 70 + 0 some how = 1

winged badger Jul 5, 2020, 12:19 PM

#

been hot reloading by any chance?

novel siren Jul 5, 2020, 12:31 PM

#

About to try that (got distracted by doggo needing to go out)

#

okay so it is now actually running the function, yet the math is still off

#

📎 unknown.png

karmic briar Jul 5, 2020, 12:50 PM

#

hey guys so im just aware that breplicates is deprecated ..what else can i use that similiar to this

novel siren Jul 5, 2020, 1:00 PM

#

and now it is not calling it reliably again...

winged badger Jul 5, 2020, 1:03 PM

#

SetReplicates()

novel siren Jul 5, 2020, 1:11 PM

#

hmm

#

and now its back to how it was before calling it but not doing anything

karmic briar Jul 5, 2020, 1:11 PM

#

thanks you is it SetReplicates(); and i dont have to do = true?

winged badger Jul 5, 2020, 1:21 PM

#

its SetReplicates(true) or SetReplicates(false)

novel siren Jul 5, 2020, 1:30 PM

#

Interesting.... found the issue I think.... it is coming from something unrelated, seeing if I can get a better fix in

karmic briar Jul 5, 2020, 1:33 PM

#

@winged badger thanks man it worked

novel siren Jul 5, 2020, 1:42 PM

#

well @winged badger your question earlier was right - it wasn't setting the variables correctly (I updated how they were set and it wasn't passing the weapon damage correctly). Fixed that. Now there is a new error though; it calls the damage event twice (something it wasn't doing before)

#

never mind that new error - that was me forgetting to change something from when trying to resolve the original error

winged badger Jul 5, 2020, 1:46 PM

#

when your bugs start cascading, its usually good idea to take a break 🙂

novel siren Jul 5, 2020, 1:49 PM

#

eh the bug was me being stupid - I thought the initial bug was due to an event not being the right RPC type so I tried a fix using another type, it didn't work. So I called both events. Then I forgot to delete the 'fix'

#

so I am back to functioning at where I was before with the correct attacks being set. Joys of refactoring and getting an unexpected error

rose egret Jul 5, 2020, 3:02 PM

#

how do I build cook and package my project from commandline ? for WindowsServer and WindowsClient

clear copper Jul 5, 2020, 3:53 PM

#

I have a UMG property bound to a variable in the GameState. It works fine but the issue is that the GameState loads a little bit after the PlayerController has connected and displayed their menu. So my Output Log says "Error: Accessed NONE for UMG Node" like 10 times because it's waiting for the GameState to load. After the GameState loads it's totally fine. Ultimately it doesn't impact gameplay at all but it's really annoying to get an error spammed every time. What's the best way to like, pause until all of the modes and states have loaded?

#

This only happens to Clients joining the lobby, the Host does not get this issue. I think it'sbecause EventOnPostLogin triggers before the PC has even began to create its objects on the client

meager spade Jul 5, 2020, 4:07 PM

#

just have a timer

#

which checks if GameState is available

#

or have a init function when the gamestate is replicated (if you use C++)

#

if GameState not available, start timer for .1 second, check its there if not, start another timer

clear copper Jul 5, 2020, 5:00 PM

#

Makes sense

#

thanks

#

Also, I'm running into an issue now. When I start a game in a new editor window and I create my lobby. No problems. When I start a game in 2 new editor windows and create my lobby, I get these errors:

LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = ConnectionLost, ErrorString = Your connection to the host has been lost., Driver = GameNetDriver IpNetDriver_88```

brittle tulip Jul 5, 2020, 5:02 PM

#

Anyone know why my actor isnt being destroyed

void AMOWPickup::OnPickedUp()
{
    Destroy();
}```
```cpp
void AMOWPlayerCharacter::ServerPickUp_Implementation(class AMOWPickup* Item)
{
    Item->OnPickedUp();
}```

fathom cove Jul 5, 2020, 5:08 PM

#

Hi,

I am trying to get ragdolling to work in multiplayer but no matter how I set it up it only happens on server.
is there any tutorial for doing this in c++ ?

clear copper Jul 5, 2020, 5:10 PM

#

Also, I'm running into an issue now. When I start a game in a new editor window and I create my lobby. No problems. When I start a game in 2 new editor windows and create my lobby, I get these errors:
LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = ConnectionLost, ErrorString = Your connection to the host has been lost., Driver = GameNetDriver IpNetDriver_88```

This seems to have 0 impact because the host and the clients can still join and everything seems to be working in my lobby, but I'm worried about these errors later on.

tribal solstice Jul 5, 2020, 6:08 PM

#

I am sending UDP data to my Unreal program using this plugin (https://github.com/getnamo/udp-ue4). I'm receiving the bytes from UDP in Unreal. but when I 'Print String' from the bytes it's a bunch of jumbled nonsense. I'm trying to organize the data from UDP within Unreal as a structure of values but I am lost on how to do that using blueprints. The datagram structure being sent externally by UDP is:
//
// x,y,z position in centimetres, yaw, pitch and roll in degrees...
//
#pragma pack(push, 2)
struct THeadPoseData {
double x, y, z, yaw, pitch, roll;
long frame_number;
};
#pragma pack(pop)

Any guidance would be greatly appreciated. Thanks!

ocean geyser Jul 5, 2020, 7:36 PM

#

question regarding replicated variables. lets say i have a replicated variable called number with a value of 5. then on the client i set that value to 6, then later on i set the replicated variable to 6 on the server. will it perform the replication event using bandwidth on the clients where the value is already 6 on the clients? or will it only run on the clients where the value is still 5?

grizzled warren Jul 5, 2020, 7:42 PM

#

Hey, I set up a very basic multiplayer. And with my build I can connect to it locally with 127.0.0.1

#

But I can't seem to connect to it remotely from another computer on another network even though I've port forwarded it

#

Shouldn't i just be able to use the command "Open ipadres:<port>"

meager spade Jul 5, 2020, 7:46 PM

#

@ocean geyser the server will still check every client

#

to the server, every client will have5

#

it doesn't know one specific client has changed it to 6

#

so it will send that property to all clients

ocean geyser Jul 5, 2020, 7:48 PM

#

roger, thank you

safe spade Jul 5, 2020, 8:27 PM

#

Am I right to understand that RPC is the only way to replicate from client to server, but also that it's recommended not to use too many RPC? If so, if replicating client VR tracking to the server before the server multicasts it back out to all the other clients, do we just kinda deal with that? It would be per-tick essentially, or perhaps there is some sort of NetworkTick() type of deal that only calls 20x a second or whatever the replication rate is?

chrome bay Jul 5, 2020, 8:46 PM

#

RPC's have no throttling, you have to throttle send rate yourself - but yes they are the only way to send data from Client->Server

#

The client must also be the "owner" of the actor calling the RPC

#

Also suggest avoiding multicasting to clients, use replicated variables instead.

ocean geyser Jul 5, 2020, 8:47 PM

#

@safe spade you could use a timer for the RPC's. for example have a replicated variable of a FRotator (or whatever type). then on the client you use the timer to RPC the data to the server every X milliseconds or however fast you want and then the server updates that variable and it gets replicated down to the clients to prevent doing a multicast

safe spade Jul 5, 2020, 9:24 PM

#

Hmm, timer makes sense I guess.

#

by multicast I just meant rpc owned local pawn -> server, then server -> all clients via replication, not more rpcs

green delta Jul 5, 2020, 11:20 PM

#

how is the camera manager defined in a multiplayer setting? do all PCs create their own and it is invisible to the server?

#

I am using the Advanced locomotion system for MP and the default map doesn't seem to have any issues however if i load my own map and player join one at a time, for some odd reason the camera manager from the server side jumps to the new player's pawn as a client. But the clients' cameras do not jump...

fossil spoke Jul 5, 2020, 11:23 PM

#

@green delta The PlayerCameraManager follows the same rules as the PlayerController, it is spawned by the PlayerController on the Server (for each Player) and on the Players machine (local only).

#

The PlayerCameraManager is not the Camera itself, the Viewport will render from whatever is the current ViewTarget, which can be a Camera, typically if no Camera is explicitly being used, the PlayerController itself will be the ViewTarget.

#

The PlayerCameraManager simply manages the active ViewTarget and allows you to handle Camera specific operations.

green delta Jul 5, 2020, 11:38 PM

#

I see @fossil spoke thank you. so my issue is that my camera manager is triggered by something specific to the server side to re-assign its follow pawn... what a headache

green delta Jul 6, 2020, 12:09 AM

#

wait does the server possess the pawns of the clients? is this what authoritative servers do???

fossil spoke Jul 6, 2020, 12:12 AM

#

PlayerControllers possess Pawns. The PlayerController exists on the Server and Local Client, possession of a Pawn happens on the Server side for the PlayerController and Pawn, the Client for which that PlayerController is owned (locally), will be told to also possess that Pawn.

green delta Jul 6, 2020, 12:18 AM

#

well then i am now lost :/

#

📎 unknown.png

#

In this camera manager, the PC tells it what pawn is controlled

#

server, for some reason, calls this when a client joins and nabs his pawn for the camera manager

#

however it makes no sense, I even called the controlled pawn of whatever owning player controller of the camera manager is and i am still getting this behaviour

#

hence why i asked if the server possesses the clients' pawns...

fossil spoke Jul 6, 2020, 12:27 AM

#

Animation Blueprints should already have access to the Pawn.

#

Assuming that the Anim Instance is being run on a SkeletalMesh attached to that Pawn.

#

Nothing in that code says to me your using the PlayerCameraManager though?

#

So thats a bit confusing.

#

Also keep in mind that the ControlledPawn is Replicated, meaning that it may not be available immediately after a call to Possess it from the PlayerController.

#

It will take a little bit of time to get populated on the Client.

#

Is OnPossess called on the Server side or Client side?

#

Also how/when is it being called?

rapid barn Jul 6, 2020, 12:48 AM

#

How do you implement multiplayer in a way that the dedicated server is not called until you enter a specific map? My current implementation only works if I start from a specific map, and doesn't work if I run it from splash screen/main menu.

green delta Jul 6, 2020, 12:50 AM

#

@fossil spoke So this BP is in a custom camera manager that is called by the custom Player controller. The anim instance in question is for the camera manager.On possess is called by the respective controllers that created this camera manager. I believe it is called by whoever the PC is. My confusion is that the server calls it when a client joins. In the PC, this is just done as you possess your pawn.

#

The On possess from the PC is called in the begin play

#

📎 unknown.png

#

Sorry for the delayed responses, got a baby on my hands ^^"

fossil spoke Jul 6, 2020, 12:52 AM

#

That seems like a very silly design, im assuming its not your code?

green delta Jul 6, 2020, 12:52 AM

#

nope, it is the Advanced locomotion code

fossil spoke Jul 6, 2020, 12:53 AM

#

Yeah well thats silly to assume that the Pawn is possessed immediately.

#

Your probably better off talking to the Author of the Plugin and asking him what his intentions was, so that you can work with that or adjust it to your needs.

green delta Jul 6, 2020, 12:54 AM

#

i wish

#

he made it free and ran away

#

lol

#

I disconnected that node to test and it did not matter.... the client had no camera and my server still stole his pawn...

#

so something else is afoot

#

thanks @fossil spoke

clear copper Jul 6, 2020, 12:58 AM

#

I get these errors when I host a lobby in standalone, but not if I host in the editor

#

LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = ConnectionLost, ErrorString = Your connection to the host has been lost., Driver = GameNetDriver IpNetDriver_88```

#

They don't seem to affect anything though, am I missing something?

fossil spoke Jul 6, 2020, 12:58 AM

#

@green delta Just so your aware, the PlayerController has overridable functions for when a Pawn is possessed/unpossessed.

green delta Jul 6, 2020, 1:00 AM

#

hm i will give it a go

#

thanks 🙂

clear copper Jul 6, 2020, 4:04 AM

#

Correct me if I'm wrong but this says all client's can see all player states correct?

📎 unknown.png

#

I'm trying to create a widget on every client that has the information about all players in the game. I thought I could just pass each widget a PlayerState and I would be able to pull data from there. On the host, it works perfectly. But on the clients, they all say returned none when trying to access PlayerState. They couldn't even access their own.

rapid barn Jul 6, 2020, 4:44 AM

#

Sort of at a crossroads here, can't figure out the correct implementation. My GameMode functionality is working when I launch the game from my multiplayer map, but when I launch the game from the splash screen/main menu maps it simply doesn't function.

I believe this is because the dedicated server is running on the main menu/splash screen maps. I don't want it to run, I want it to only run on the specified multiplayer map.

thin stratus Jul 6, 2020, 5:16 AM

#

@clear copper it's correct. You might access it wrong or too early.

#

@rapid barn Then change the default server map in your project settings under maps and modes

tacit pecan Jul 6, 2020, 6:40 AM

#

Hey everyone, Im following a tutorial for chatting and im having an issue for all the clients where it will only update the messages if press on the channel tab everytime and im not sure why its doing that

📎 dsa.PNG

#

This is the part of the code that spawns the widget and binds to on channel changed and on send message

📎 dsaf.PNG

#

This is supposed to push the messages to the client... which isnt happening unless i press on the channel tab

📎 asdff.PNG

#

If anyone could help me or at least point me in a direction to know what is wrong or how i can find out which part of my code isnt working properly that would be great... Thanks

thin stratus Jul 6, 2020, 6:55 AM

#

Looks like you only actually retrieve them if the channel is changed

#

This gets them if you change the channel

📎 unknown.png

#

This here is sending the message from client to server.
What happens afterwards? Somewhere after that it has to tell the clients what the message is

📎 unknown.png

#

@tacit pecan

tacit pecan Jul 6, 2020, 7:00 AM

#

What i understand from the tutorial is that this is sending the channel to watch for messages from ... then at the end of that line of code its supposed to be getting the messages and pushing it to the client... right?

📎 asfdaf.PNG

#

Then this communicates with the widget to add the message to the text box... however its returning none for the chatbox on the client side maybe thats why its not updating?

📎 dd.PNG

tacit pecan Jul 6, 2020, 7:39 AM

#

@thin stratus

thin stratus Jul 6, 2020, 7:47 AM

#

That looks more like it's the code that reacts to you pressing a different tab

#

It just says "WatchChannel"

#

When you change the Channel you are watching by clicking a tab, it retrieves all the messages from that channel

#

@tacit pecan

tacit pecan Jul 6, 2020, 7:50 AM

#

but on the server it updates the messages normally so im guessing the code is there but the implementation for the client is off right? Can you tell what is missing from which part? @thin stratus Ive been at this for 2 days and im just not getting it

thin stratus Jul 6, 2020, 7:53 AM

#

I already asked you what the "SendChatMessage" does

tacit pecan Jul 6, 2020, 7:58 AM

#

Oh sorry didnt see that

#

📎 11.PNG

#

It calls this interface event in the game state

#

📎 12.PNG

#

📎 13.PNG

#

Which executes this function

#

@thin stratus

thin stratus Jul 6, 2020, 8:08 AM

#

And what does NotifyChannelUpdated do?

tacit pecan Jul 6, 2020, 8:14 AM

#

📎 14.PNG

#

📎 15.PNG

#

Which goes there

#

@thin stratus

thin stratus Jul 6, 2020, 8:16 AM

#

Yeah that's where you should receive your messages

#

So I would suggest putting some print strings in and checking if this actually calls and how the Messages array looks like

tacit pecan Jul 6, 2020, 8:17 AM

#

it doesnt call on the client

#

i tried adding a print string in that final screenshot and i got the first message in the array and printed it... it says
Server : Hello

#

thats it, it doesnt register anything for the client

#

@thin stratus

thin stratus Jul 6, 2020, 8:23 AM

#

What is that code in?

#

PlayerController

#

Could you change that event from being a Multicast to being a ClientRPC?

#

Because a Multicast in a PlayerController makes no sense

tacit pecan Jul 6, 2020, 8:31 AM

#

Yes this last part is in the player controller

#

@thin stratus Client RPC meaning on owning player right?

#

I did that but its the same i have to press on the tab clientside to get the new messages

thin stratus Jul 6, 2020, 8:36 AM

#

it's still a good change

#

Put more print strings into the chain. See where it fails

#

Is the Clients PlayerController even in that Array etc.

#

You will have todo some debugging. I can tell you already that I don't know why it fails from just this.

tacit pecan Jul 6, 2020, 8:37 AM

#

Ok when you say "fails" that means that only the server is calling the print string right? @thin stratus

#

The player controllers array has both of my players

near bison Jul 6, 2020, 8:42 AM

#

What's the best way to test multiplayer with a friend?

spice skiff Jul 6, 2020, 9:28 AM

#

@near bison setup a quick and easy direct ip connection menu

near bison Jul 6, 2020, 9:30 AM

#

can't I do that from the console?\

#

open ip:port
And also does my game have to be packaged?

unkempt tiger Jul 6, 2020, 9:35 AM

#

How can I differentiate between server/client in subsystems?

#

GIsServer/Client globals dont seem to be working

thin stratus Jul 6, 2020, 9:54 AM

#

@near bison No, but you have to at least use Standalone. You can't connect from Editor to Editor.

#

Since you are testing Steam, you should already be aware of that

#

On that note: Steam will block your direct IP connection iirc. So if you want to do that, go back to subsystemNULL for now.

near bison Jul 6, 2020, 9:57 AM

#

Since you are testing Steam, you should already be aware of that
@thin stratus It works when I package with steam

thin stratus Jul 6, 2020, 9:57 AM

#

Yeah but you don't have to package, as long as you and your friend have the project on the same changelist

#

Then you can just launch standalone

crude coral Jul 6, 2020, 10:19 AM

#

hello! i need to add the GameLift-specific code to my project gamemode.cpp! but when i open the solution of my project i have (myprojectGamemodeBase.cpp) and not (myprojectGamemode.cpp)...i have something wrong with my project?

winged badger Jul 6, 2020, 11:18 AM

#

@unkempt tiger depends on the subsystem

#

WorldSubsystem can easily figure it out, as can LocalPlayer, GI and such

#

as long as you can get World, you can tell

warm nest Jul 6, 2020, 11:24 AM

#

https://github.com/andreyminea/SteamTeamplate/blob/master/README.md

GitHub

andreyminea/SteamTeamplate

Contribute to andreyminea/SteamTeamplate development by creating an account on GitHub.

unkempt tiger Jul 6, 2020, 11:44 AM

#

Oh, right

#

I can just do GetWorld()->HasAuthority()?

narrow pasture Jul 6, 2020, 11:56 AM

#

Hi
Does UE support functional testing in multiplayer? My logic requires few clients connected to server. Can I use Session Frontend to mock these clients somehow?

chrome bay Jul 6, 2020, 12:16 PM

#

You can test multiplayer in editor just by increasing the number of clients.

#

But you should test outside of editor often too, as things rarely behave the same way. Editor is just for testing the basics.

clear copper Jul 6, 2020, 12:48 PM

#

@clear copper it's correct. You might access it wrong or too early.
@thin stratus So in my GameMode on EventOnPostLogin, I am adding the PlayerState to an array in the GameState. Then I am adding a widget for each PlayerState to all PlayerControllers and passing each widget a PlayerState. Works fine for the host, doesn't work for any client. Should that work in theory? Basically I just want a widget for each player on each client so that when hitpoints change for client 1 (stored in the playerstate), all the widgets update accordingly because they have that playerstate

chrome bay Jul 6, 2020, 12:49 PM

#

@clear copper Be aware - an array of player states is already available in the game state

#

And it's automatically managed at both ends

#

Look at GameStateBase::PlayerArray

clear copper Jul 6, 2020, 12:50 PM

#

"The PlayerArray is not directly replicated"

chrome bay Jul 6, 2020, 12:50 PM

#

It's managed automatically at each end

clear copper Jul 6, 2020, 12:50 PM

#

So that just means it's being managed separately not replicated to server then client?

chrome bay Jul 6, 2020, 12:51 PM

#

yeah, player states add themselves as they are created/removed

clear copper Jul 6, 2020, 12:51 PM

#

ah ok cool

chrome bay Jul 6, 2020, 12:51 PM

#

So the array won't have the same indices on each connection, but it won't matter - it's just a handy place to get to them all

clear copper Jul 6, 2020, 12:52 PM

#

the indices do matter for me though, I need to know who is player 1, 2, 3 etc

#

I guess I could just add a variable in the playerstate to track that though

#

and set it on post login

chrome bay Jul 6, 2020, 12:53 PM

#

Well, player states have their name and a unique id integer too

clear copper Jul 6, 2020, 12:53 PM

#

Hmm, ok Ill play around with that and see where I get

#

thanks

twin juniper Jul 6, 2020, 1:06 PM

#

Should a lobby server be a dedicated server

#

Then in game probably player hosted

#

Is that the simplest way to go about doing multiplayer?

crude coral Jul 6, 2020, 1:07 PM

#

for the gamelift object need to be in the main menu level bp or the gameplay level bp?because my lobby map is inside my gameplaymap; the lobby is one tile sublevel inside my gameplay tiled maps so i have main menu map+ transition map+gameplay map

📎 AWS.PNG

thin stratus Jul 6, 2020, 1:16 PM

#

I would honestly create that in the GameInstance if you work in BPs

#

Otherwise it gets recreated everytime you swap maps

crude coral Jul 6, 2020, 1:19 PM

#

inside my gameinstance i have the old pb : create session..etc the standard unreal session! i not need them now after i create aws gamelift server and gamelift client plugin's?

#

this old bp about the game session (create and join)inside my gameinstance...so i need delete those and create new sessions events logic with aws gamelift?

📎 GameSession.PNG

unkempt tiger Jul 6, 2020, 1:40 PM

#

WorldSubsystem can easily figure it out, as can LocalPlayer, GI and such
@winged badger How can a world sub system figure it out?

twin juniper Jul 6, 2020, 1:42 PM

#

When a player hosts a game server how do other lobbies running on separate networks know where to look to find thta game server?

#

Should there be a lobby server which receives a notification from the player hosting

#

That they are hosting a server

#

so the lobby can then send that list to other players connected to the lobby server

#

Or is it possible without a lobby server

meager spade Jul 6, 2020, 1:45 PM

#

WorldSubsystem has a GetWorld()

#

@unkempt tiger

#

same as GameInstance subsystem

unkempt tiger Jul 6, 2020, 1:47 PM

#

Yes, but how would I be able to tell if it's server or client?

#

Oh

#

Perhaps with the IsClient()/IsServer() functions :D

#

Thanks 😅

meager spade Jul 6, 2020, 1:48 PM

#

😄

#

World()->GetNetMode()

unkempt tiger Jul 6, 2020, 1:49 PM

#

Oh

meager spade Jul 6, 2020, 1:49 PM

#

if (GetWorld()->GetNetMode() == NM_Client)

#

for example

unkempt tiger Jul 6, 2020, 1:49 PM

#

Perfect, thank you :3

crude coral Jul 6, 2020, 2:05 PM

#

i create gameliftserversdk and gameliftclientsdk plugin's for my unreal 4 game project and i have some questions about the setup of the gamelift object event

clear copper Jul 6, 2020, 2:39 PM

#

@chrome bay I'm having the same issue. My client's player controller returns NONE when trying to pull the GameState Player Array

#

the host has no problem

chrome bay Jul 6, 2020, 2:40 PM

#

They won't be available immediately

clear copper Jul 6, 2020, 2:40 PM

#

ah

chrome bay Jul 6, 2020, 2:40 PM

#

Actors replicate independently and in random non-deterministic orders - there's no garauntee an actor will be valid at the time you look for it

clear copper Jul 6, 2020, 2:41 PM

#

should I put a pause while they load then?

chrome bay Jul 6, 2020, 2:41 PM

#

For UI, I personally just tick stuff 90% of the time. For other stuff, it's best to have global events that fire when objects become available.

clear copper Jul 6, 2020, 2:42 PM

#

what do you mean tick stuff?

bitter oriole Jul 6, 2020, 2:44 PM

#

Using tick to update the state based on other objects

clear copper Jul 6, 2020, 2:46 PM

#

Still not quite sure what that means in this context. Could I not do something like this?

📎 unknown.png

winged badger Jul 6, 2020, 2:47 PM

#

that still doesn't guarantee all player states will have replicated between two queries

clear copper Jul 6, 2020, 2:48 PM

#

Ah that's true

winged badger Jul 6, 2020, 2:48 PM

#

blueprint only?

clear copper Jul 6, 2020, 2:48 PM

#

yeah 😦

#

still not great with c++

winged badger Jul 6, 2020, 2:48 PM

#

well, playerarray itself is not replicated

#

PlayerStates register with GameState on BeginPlay and end there

#

without c++ you can't override the registration to do a little extra

#

but

clear copper Jul 6, 2020, 2:50 PM

#

Yeah that's what I was having trouble with initially

winged badger Jul 6, 2020, 2:50 PM

#

you can register them with your local HUD at BeginPlay

#

the have the HUD forward that to the widget

#

resulting in the widget getting the playerstate references as they replicate and become available

clear copper Jul 6, 2020, 2:53 PM

#

Hmm, so instead of having the GameMode tell each PlayerController to create their UI and passing the PlayerStates, I just have the client's HUD create it on BeginPlay ?

meager spade Jul 6, 2020, 2:53 PM

#

HUD actor is automatically created

#

for each player, locally

winged badger Jul 6, 2020, 2:53 PM

#

not quite, having PlayerStates on BeginPlay find the HUD and say "hello, im here now"

meager spade Jul 6, 2020, 2:54 PM

#

using a subclass of AHUD really helps to keep your HUD UI organized

#

fyi

winged badger Jul 6, 2020, 2:55 PM

#

HUD calls AddPlayerState event on the widget that needs the PlayerStates when it receives the hello

#

and widget adjusts accodringly

meager spade Jul 6, 2020, 2:55 PM

#

shame BP can't override OnRep_PlayerState in the Pawn

#

cause you could have used that

winged badger Jul 6, 2020, 2:56 PM

#

for this, overriding the registration of PS with GS would be better ^

#

as its not just the local PS thats involved here, i suspect

clear copper Jul 6, 2020, 2:57 PM

#

Yeah, Id like all players to see the states of all players in their UI. So when player 1 takes damage and their HP changes, player 2 and 3's HUD updates because each widget is connected to a playerstate

meager spade Jul 6, 2020, 2:57 PM

#

well OnRep_PlayerState will fire for all the characters tho, not just the local from APawn, but yeah GS would be ok

clear copper Jul 6, 2020, 2:57 PM

#

if that makes sense

swift spoke Jul 6, 2020, 2:57 PM

#

Hi guys, I am trying the collab viewer template from a couple of days.
I have just built the sample scene without any modifications.
But the problem is once I host the session others cant join as the servers are not detected(We are not on the same network)
Tried putting the IP address manually, no luck! Any help is really appreciated...

winged badger Jul 6, 2020, 2:57 PM

#

it will, but so will BeginPlay in PS

meager spade Jul 6, 2020, 2:57 PM

#

yeah

winged badger Jul 6, 2020, 2:58 PM

#

no point in cluttering Pawn with PS registration for UI in this case

#

and the solution is more generic - as in, will not cause problems if you decide to possess some other pawn at some point

meager spade Jul 6, 2020, 2:59 PM

#

PS BeginPlay -> GetHUD() -> RegisterPlayerState(this) or w/e would work. How you identify Player 1, etc, should be in your GameMode, and assigned to each player's playerstate (iirc you needed to know if its player 1, 2, 3 or 4), tho in our game, we just care for name. Doesn't matter if they are 1, 2, 3, 4

winged badger Jul 6, 2020, 3:00 PM

#

you can't get PC indices client side anyhow

meager spade Jul 6, 2020, 3:00 PM

#

are they guaranteed order though on all clients and server?

#

oh you said can't

winged badger Jul 6, 2020, 3:00 PM

#

the index is not stored in the PC

#

or replicated

meager spade Jul 6, 2020, 3:01 PM

#

well you cant access PC from anything but local or auth anyway

#

but playerstate could hold a int with player number

#

based on connection order

winged badger Jul 6, 2020, 3:01 PM

#

engine code to find PC index is basically using FPlayerControllerIterator, incrementing the integer inside the loop and returning if current *It matches the PC you're interested in

#

so, better not use those for any gameplay logic, as they will also change if someone logs out

clear copper Jul 6, 2020, 3:02 PM

#

The way i did it is just add a variable for Player Number in the PS and OnPostLogin I just assign it there. That's the integer I use to know where in my grid to spawn the widget

meager spade Jul 6, 2020, 3:03 PM

#

well anyway have PlayerState beginplay, get the local players hud, and register itself

#

seems the easiest way

winged badger Jul 6, 2020, 3:03 PM

#

we generally don't care if they widgets are not in same order on different clients

clear copper Jul 6, 2020, 3:03 PM

#

thats true

#

doesn't matter in my case either

#

So by BeginPlay in the PlayerState

#

the client should have access to all of the PlayerStates in the GameState's Player Array?

#

or does it just make sure it has access to it's own by that point

chrome bay Jul 6, 2020, 3:07 PM

#

Not all of them - only that one

#

Player States are all individual actors themselves, replicating individually.

winged badger Jul 6, 2020, 3:08 PM

#

and each calls BeginPlay on each machine

clear copper Jul 6, 2020, 3:08 PM

#

ah

winged badger Jul 6, 2020, 3:09 PM

#

after it has replicated, obviously

chrome bay Jul 6, 2020, 3:09 PM

#

isn't multiplayer fun 😄

clear copper Jul 6, 2020, 3:09 PM

#

It's killing me lol

#

the timing of it all is tough to wrap my head around, but i think im getting it bit by bit

chrome bay Jul 6, 2020, 3:10 PM

#

To be honest if you're working solely with blueprint, I think the quickest approach will be to tick the object that needs those player states - and just check that array each frame.

#

It feels very gross and it's far from the most performant method certainly, but it's the most straightforward.

winged badger Jul 6, 2020, 3:10 PM

#

that approach gets expensive fast if it becomes a habit

clear copper Jul 6, 2020, 3:10 PM

#

that sounds very intensive no? constantly checking?

twin juniper Jul 6, 2020, 3:10 PM

#

When a game client is packaged does it have a default ip it connects to or does the client have to specify and where is it specified is it just from the terminal?

clear copper Jul 6, 2020, 3:10 PM

#

yeah

winged badger Jul 6, 2020, 3:10 PM

#

UMG binding functions are ridiculously expensive

chrome bay Jul 6, 2020, 3:11 PM

#

Oh yeah avoid bindings like the plague for sure

clear copper Jul 6, 2020, 3:11 PM

#

ugh

#

lol

#

well

#

if that's the case

#

i could go back to what i was doing before

#

which is whenever something for a player changed

#

that widget was just reset with new values

#

i thought binding was actually better

chrome bay Jul 6, 2020, 3:11 PM

#

If you want to avoid tick, put an event in your game instance class or something, which each player state broadcasts during it's "begin play"

#

And have widgets grab and bind to it

#

That's probably the closest you can get to some kind of global event system in blueprint alone

clear copper Jul 6, 2020, 3:12 PM

#

Makes sense

winged badger Jul 6, 2020, 3:12 PM

#

can be done directly via HUD for BP UI

chrome bay Jul 6, 2020, 3:12 PM

#

yeah

winged badger Jul 6, 2020, 3:12 PM

#

HUD will grow... large, but no avoiding that really

clear copper Jul 6, 2020, 3:13 PM

#

yeah that's fair

#

back to UMG for a sec, do you mean avoid bind functions or is binding to a variable equally expensive? Like if i have Text that displays player's current score, should I be directly setting that text value or can i bind it to the score integer variable?

chrome bay Jul 6, 2020, 3:14 PM

#

You know those little "Bind" drop-downs next to properties?

#

Avoid them 😄

winged badger Jul 6, 2020, 3:14 PM

#

its not as bad as functions

#

but its bad

clear copper Jul 6, 2020, 3:14 PM

#

😮

chrome bay Jul 6, 2020, 3:14 PM

#

Ticking is honestly better than those

clear copper Jul 6, 2020, 3:14 PM

#

they're so easy and literally every tutorial for epic uses bind like its their job

#

lol

chrome bay Jul 6, 2020, 3:14 PM

#

They're not so bad when you only have a few

winged badger Jul 6, 2020, 3:14 PM

#

ofc it does

chrome bay Jul 6, 2020, 3:14 PM

#

but if you go crazy and your project is full of them, RIP

winged badger Jul 6, 2020, 3:14 PM

#

their programmers have better things to do then making tutorials

#

so they are made by community managers and such

clear copper Jul 6, 2020, 3:15 PM

#

Id say at any given time, there's probably only going to be 16 bindings on screen. 4 players max and they have Name, Health, Score, Resources.

winged badger Jul 6, 2020, 3:15 PM

#

generally, if you have just few pieces of UI on screen, and its not a "play" scene

#

then it deosn't matter if they are expensive or not

#

since you'll still manage 200 frames a second

#

but for stuff like ingame HUD? avoid bindings at all costs

#

just to put things in perspecitive

#

a UI adequate for a MOBA game done completely by function bindings will take around 7ms game time

#

meaning that if you had nothing but the UI, you're already capped at 144 or so FPS

#

add a game to it and suddenly you're capped at 30

chrome bay Jul 6, 2020, 3:18 PM

#

they are the work of the devil 😄

clear copper Jul 6, 2020, 3:18 PM

#

why is binding so expensive? Is it jsut constantly hitting its function/variable?

chrome bay Jul 6, 2020, 3:18 PM

#

so tempting, yet so evil

clear copper Jul 6, 2020, 3:18 PM

#

yeah i've been using them all the time, but at least they are easy enough to avoid

chrome bay Jul 6, 2020, 3:18 PM

#

To be honest if you have the bindings as functions already - it's very little work to hook them all up to your tick function and update the widgets directly.

clear copper Jul 6, 2020, 3:19 PM

#

luckily im making a card game so the UI isn't that intense and neither is what's going on in game

#

its crazy to me that ticking a function to update the UI is somehow better than the UI's binding system

#

I can't believe it doesn't update on tick or on change or something

chrome bay Jul 6, 2020, 3:19 PM

#

Well the good thing about tick is, it only runs once

winged badger Jul 6, 2020, 3:19 PM

#

everything is better then UMG binding system 😄

clear copper Jul 6, 2020, 3:20 PM

#

what do you mean only runs once? I thought Event Tick constantly triggers

winged badger Jul 6, 2020, 3:20 PM

#

once per frame

clear copper Jul 6, 2020, 3:20 PM

#

oh yeah ok

#

how many times does binding trigger per frame then? lol

winged badger Jul 6, 2020, 3:21 PM

#

if its anything like transform updates on a skeletal mesh? 5-6

#

honestly, no idea tho

clear copper Jul 6, 2020, 3:21 PM

#

damn

chrome bay Jul 6, 2020, 3:21 PM

#

The bindings are also their own separate UObjects, with all the overhead that comes with.

clear copper Jul 6, 2020, 3:22 PM

#

why on earth D:

chrome bay Jul 6, 2020, 3:22 PM

#

(not much, but not nothing)

clear copper Jul 6, 2020, 3:22 PM

#

lol

#

well, this is been insanely informative so thanks a ton

#

I guess Ill try a couple ways to get these UIs working

winged badger Jul 6, 2020, 3:23 PM

#

for stuff like main menu, it generally deosn't hurt to do bindings

#

since you won't have enough elements on screen to cause real damage, and there is nothign else going on

clear copper Jul 6, 2020, 3:23 PM

#

Yeah that's what ill stick with but ill measure performance when iget to the actual game

#

and it will be the first thing to change

#

if I get stuck, is there any way i could pay for some of your time to maybe screen share and run through it this week?

winged badger Jul 6, 2020, 3:25 PM

#

i have deadlines to meet, so unlikely

clear copper Jul 6, 2020, 3:25 PM

#

Ah, well thanks for the help

winged badger Jul 6, 2020, 3:27 PM

#

asking on discord is always a good option, quite a few people do procrastinate around here

clear copper Jul 6, 2020, 3:27 PM

#

Yeah it's been a great resource

#

I've gotten better and taking general ideas and applying them to my situation

#

but i've only been on unreal as a hobby for a couple months so still a ways to go

#

always learning something new though

chrome bay Jul 6, 2020, 3:29 PM

#

quite a few people do procrastinate around here
@winged badger I feel personally attacked

#

especially considering I just made this

📎 Memes.jpg

#

But ye - UE4 Discord community is great (Y)

winged badger Jul 6, 2020, 3:30 PM

#

😄

clear copper Jul 6, 2020, 3:40 PM

#

How bad is this idea: Event OnPostLogin

#

i just display loading screen and wait 5s

winged badger Jul 6, 2020, 3:40 PM

#

doesnt work on clients

clear copper Jul 6, 2020, 3:41 PM

#

It does when OnPostLogin is what tells the PC to create their menus

winged badger Jul 6, 2020, 3:41 PM

#

delayed start is best hacndled overriding GameMode functions in c++

clear copper Jul 6, 2020, 3:41 PM

#

i really gotta get better at c++ D:

winged badger Jul 6, 2020, 3:42 PM

#

even better if its after seamless travel from lobby

#

as then you can wait until all players have loaded to start a timer, that starts the match

clear copper Jul 6, 2020, 3:42 PM

#

yeah i saw that part

#

unfortunately this is people connected to the lobby

#

also, does the GameState's PlayerArray always only have 1 PS per client? because my client's array has 3 items in it despite only having host and client in the lobby

#

Here's what the host created

📎 unknown.png

#

vs the client

📎 unknown.png

#

Client has a 3rd, blank space next to the two Agnes portraits

#

that box is populated by looping through the array

winged badger Jul 6, 2020, 3:44 PM

#

thats why register PSs directly

clear copper Jul 6, 2020, 3:45 PM

#

yeah i figured

#

whats in the last index for that array then?

twin juniper Jul 6, 2020, 3:47 PM

#

Does unreal use udp hole punching for player listen servers?

#

or do the players have to port forward?

winged badger Jul 6, 2020, 3:47 PM

#

you do have a LastIndex node

#

@twin juniper i have a feeling you're trying to invent hot water there

#

most games tend to use a service that handles all that for them

#

like, Steam

#

Steam sockets can poke a hole through the NAT

clear copper Jul 6, 2020, 3:48 PM

#

When OnPostLogin triggers, does the host have the joining client's PlayerController and PlayerState? Or is there a loading time issue there as well?

winged badger Jul 6, 2020, 3:48 PM

#

and 20 years ago you could count on average gamer knowing how to forward their ports

#

not so much today

#

it does, as the PS is instantiated from PC's PostInitializeComponents

twin juniper Jul 6, 2020, 3:50 PM

#

@twin juniper i have a feeling you're trying to invent hot water there
@winged badger I see

winged badger Jul 6, 2020, 3:51 PM

#

you would probably not want to hardcode the IP to connect to into the game either

#

as that would necessitate a game patch each time you want to change a provider

bitter oriole Jul 6, 2020, 4:13 PM

#

That's what domain names are for really

meager spade Jul 6, 2020, 4:28 PM

#

most games have a master server, which holds IP's to all game servers

#

spools up/finds an instance, sends back IP and port

#

(generic terms of course)

clear copper Jul 6, 2020, 5:23 PM

#

Ok now I'm thoroughly confused. I am passing player states to the widget to reflect the player's info. Works great on creation. When the host update's their score, every client sees the update and their widgets update accordingly. However, when a client updates their score, only they see the change. Even though the score is a replicated variable inside their player state that every client should be able to see. Am i missing something obvious?

safe spade Jul 6, 2020, 5:24 PM

#

replicated variables are only server to client

meager spade Jul 6, 2020, 5:24 PM

#

the client needs to tellt he server to update

safe spade Jul 6, 2020, 5:24 PM

#

^ that

#

client tells server, then the server can replicate to everybody else

clear copper Jul 6, 2020, 5:26 PM

#

oh yeah!

#

thanks!

meager spade Jul 6, 2020, 5:50 PM

#

tho server should be handling all scores

#

client should never tell server how much score he got

#

client can do something then the server calcs what score they got

twin juniper Jul 6, 2020, 6:48 PM

#

why is rpc call faster than variable replication

#

it is breaking my logic

meager spade Jul 6, 2020, 6:48 PM

#

ofc it is

twin juniper Jul 6, 2020, 6:48 PM

#

if I use repnotify would it fix it ?

meager spade Jul 6, 2020, 6:49 PM

#

RPC's are sent normally next frame or so

#

Actors only replicate when they need to based on there replication priority and update frequency

twin juniper Jul 6, 2020, 6:49 PM

#

what I have is a struct with many data

#

isnt it heavy to use repnotify

#

does

#

rep notify gets called on server or client ?

meager spade Jul 6, 2020, 6:51 PM

#

in blueprint, both

#

but server wont cost any traffic 😄

twin juniper Jul 6, 2020, 6:52 PM

#

yeah I am asking because I need the execution after client side gets changed

#

Its in cpp

#

im using replicatedusing

meager spade Jul 6, 2020, 6:52 PM

#

then have the client RPC back once he gets it?

#

or have the server do a client RPC with the data ?

#

i mean i don't know what you are doing

#

but there is many ways to handle such conditions

twin juniper Jul 6, 2020, 6:53 PM

#

yeah I know

#

thanks

clear copper Jul 6, 2020, 7:38 PM

#

client can do something then the server calcs what score they got
@meager spade yeah but im testing because the user gets to select their character and name in the lobby. Just easier to use a temp score variable since its a simple integer

autumn bramble Jul 6, 2020, 7:40 PM

#

I'm having an issue where the host of a listen server can't find their own player controller. Does anyone know how I can fix that?

meager spade Jul 6, 2020, 7:44 PM

#

why can't the host find his own player controller?

#

GetWorld()->GetFirstPlayerController() will be the listen servers player controller?

#

i have never ever heard of that before

autumn bramble Jul 6, 2020, 7:52 PM

#

well in the begin play I'm casting the player controller and saving it as a variable and throughout the rest of the code it feels like it's not finding that variable

#

it might not be a case of can't find it's player controller it's more can't find save the variable at the start.

#

huh actually I've just realised I'm only pulling that variable in twice both times it doesn't work. So that might actually be the issue

meager spade Jul 6, 2020, 7:54 PM

#

beginplay of what?

autumn bramble Jul 6, 2020, 7:54 PM

#

Of the player pawn

meager spade Jul 6, 2020, 7:54 PM

#

it wont have a controller at begin play

#

never do that

autumn bramble Jul 6, 2020, 7:54 PM

#

Ah good to know!

meager spade Jul 6, 2020, 7:55 PM

#

PossessedBy and OnRep_Controller

#

are the places you want to cache a pointer

#

to the controller

#

OnRep_Controller for client side

autumn bramble Jul 6, 2020, 7:55 PM

#

That is really good to know, thank you.

#

is there anything else I should try and avoid doing on the begin play?

#

also yeah that totally fix my issue

buoyant wedge Jul 6, 2020, 9:37 PM

#

hello guys. Why my client is lagging when i sprint? I think is a replication problem but i don't know how fix

📎 2020-07-06_23-34-49.mp4

meager spade Jul 6, 2020, 9:42 PM

#

you need to make sure the move speed is the same on client and server

#

that is not lag

#

that is error correction

#

cause server sees you at a different location than the client says it is

clear copper Jul 6, 2020, 9:45 PM

#

Should I let a client update their own player state? Like when they pick a character? Or should they pick a character, and tell the server and it updates their player state?

#

Right now I have a UMG with characters, when the client selects one, it gets their PlayerState and sets the Character variable.

buoyant wedge Jul 6, 2020, 9:50 PM

#

@meager spade thx for the reply. How can set correctly the speed for client and server? Run on server and after run on owning client?

unkempt tiger Jul 6, 2020, 9:50 PM

#

How can I check if my actor is owned by the client running my code?

#

Is there some kind of HasOwnership() function, similar to HasAuthority()?

clear copper Jul 6, 2020, 9:51 PM

#

can you GetOwningPlayer maybe?

unkempt tiger Jul 6, 2020, 9:52 PM

#

Yes

meager spade Jul 6, 2020, 9:52 PM

#

GetOwner() on a normal Actor

unkempt tiger Jul 6, 2020, 9:52 PM

#

But how do I compare it to the local player?

#

Like if (GetOwner() == <what do I put here?>) {}

clear copper Jul 6, 2020, 9:52 PM

#

If GetOwner = GetPlayerController?

unkempt tiger Jul 6, 2020, 9:52 PM

#

Ah

meager spade Jul 6, 2020, 9:52 PM

#

if (GetOwner() == GetWorld()->GetFirstPlayerController()->GetPawn())

#

if its owned by the pawn

#

of cause

unkempt tiger Jul 6, 2020, 9:53 PM

#

Oh, for clients

#

neat

#

Thanks ❤️

meager spade Jul 6, 2020, 9:53 PM

#

FirstPlayerController is always the player controller of the player on the local machine

#

splitscreen is a different beast

unkempt tiger Jul 6, 2020, 9:54 PM

#

And what does it return on the server?

#

The actual first controller to login?

meager spade Jul 6, 2020, 9:54 PM

#

if its listen server, then that players controller

#

else nothing cause dedicated server doesn't have a player controller

clear copper Jul 6, 2020, 9:54 PM

#

If the client changes a replicated variable in their PlayerState, do only them and the server see it? Or would other clients be able to see the new value in that PlayerState?

meager spade Jul 6, 2020, 9:55 PM

#

no only they see it

#

server and other clients wont see it

#

replication only works Server -> clients

clear copper Jul 6, 2020, 9:55 PM

#

Ah ok that's what was getting me

meager spade Jul 6, 2020, 9:55 PM

#

changing the variable on the client is only on that client

clear copper Jul 6, 2020, 9:55 PM

#

So after changing on the client, i have to tell the server I changed it and then everyone will see that new value

meager spade Jul 6, 2020, 9:56 PM

#

yes

#

and if your changing it local first

#

make it SkipOwner

clear copper Jul 6, 2020, 9:56 PM

#

what do you mean?

#

oh so dont replicate it to the owner since they already have it

winged badger Jul 6, 2020, 10:47 PM

#

not only that, but depending on variable and update frequency

#

it can cause all kinds of jitter, bugs, etc...

terse prawn Jul 6, 2020, 11:13 PM

#

in my project when a player clicks I want a arrow to spawn where the player has clicked. If the server clicks the arrow shows for everyone, is there a way to make it not show for everyone?

meager spade Jul 6, 2020, 11:13 PM

#

don't replicate it?

terse prawn Jul 6, 2020, 11:16 PM

#

my apologies, the actor was set to replicate. I'm dumb. thank you

crude coral Jul 6, 2020, 11:37 PM

#

i success to build my project solution with (gameliftserversdk+gameliftclientsdk) the build success but i can see Atomic.h like error! and if is error how the build successed?

foggy idol Jul 7, 2020, 2:11 AM

#

i think intellisense

#

it goes bonkers sometimes

spiral locust Jul 7, 2020, 3:48 AM

#

Hello, I'm kind of new here 🙂

#

I was wondering if anyone could help me to figure out why I'm getting a jittery ThirdPerson character rotation out-of-the-box in UE4

#

I have "Use Controller Rotation Yaw" enabled on the TP character.

📎 unknown.png

#

Basically this character is "Ue4ASP_Character" from Epic's Animation Starter Pack and I have no changes on it.

#

If I play with 2 or 3 clients and move any direction (except forward), character actor rotation starts to jitter.

#

It is much more visible when I simulate on 100ms latency with no loss network conditions.

#

If I uncheck and do not use Controller Rotation, it's perfectly fine which brings me to question: so why applying Controller Rotation is jittery?

#

I'm not sure if I explained the problem clearly, I could also record a short demo video if that'd help more.

#

Thanks for any thoughts and suggestions in advance! 🙂

buoyant wedge Jul 7, 2020, 6:17 AM

#

@meager spade for the sprint problem of my character is correct if is remote run on server and after run on owner client for fix my correction problem? 🙂

thin stratus Jul 7, 2020, 7:14 AM

#

RepNotify variable (float). When you press your sprint key, set it on the Client to your new value and do a ServerRPC.
In the ServerRPC you also set it to the same new value. In the OnRep function you then use the float variable to set the actual WalkSpeed of the CharacterMovementComponent.

I do want to note here though, that this is still wrong, and the only proper solution is to use C++ and extend the MovementComponent.
You theoretically need to start sprinting on the same timestamp as the Server. Otherwise you will ALWAYS notice a small correction at the Start or End of your sprint.

limber yacht Jul 7, 2020, 7:17 AM

#

Can you join other sessions using the Steam OSS and the Dev app ID? I've been following along with the ShooterGame example to implement sessions, gotten creation and searching working, now the only thing left is that it falls over when attempting to join.

Could also be it doesn't like joining a session running on the same PC using the OSS?

thin stratus Jul 7, 2020, 7:20 AM

#

You can join with the DevAppID.
You need two PCs (or Virtual Machine) to do so. The second instance of your game won't have Steam init properly.

limber yacht Jul 7, 2020, 7:22 AM

#

Thanks, I thought it might be something like that. Just wanted a sane voice in my ear before I stole my partner's PC 😛

buoyant wedge Jul 7, 2020, 7:50 AM

#

@thin stratus thx for explanation. So with c++ the correction is near to 0, you can explain the different to c++ and bp in termine to performance? 🙂

thin stratus Jul 7, 2020, 8:00 AM

#

No I can't. This has nothing to do with performance.

#

The CMC, in C++, properly handles SavedMoves and sending the Server what exactly is happening on the Client, so the Server can do the exact same thing at the exact same time.

#

If you change MovementSpeed in BPs via some OnRep or RPC, it's not guaranteed to be changed in the same timestamp.
The Client would change it in Timestamp X and the Server in Timestamp Y.
Everything between these two Timestamps would be moves that will be corrected. The bigger the lag, the bigger the correction window.

buoyant wedge Jul 7, 2020, 8:04 AM

#

Many thx for explanation. 🙂

spiral locust Jul 7, 2020, 9:10 AM

#

I fixed my character rotation jittering problem — so I wanted to share.

#

Turns out, CharacterMovementComponent's bOrientRotationToMovement is fighting against Pawn's bUseControllerRotationYaw.

#

Apparently it's already called out in CMC header:

📎 unknown.png

#

Leaving Pawn's bUseControllerRotationYaw enabled and disabling CharacterMovementComponent's bOrientRotationToMovement literally fixed it entirely! 🎉

buoyant wedge Jul 7, 2020, 11:42 AM

#

@thin stratus i have try to set a rep notify but... is total mess

📎 unknown.png

#

📎 unknown.png

thin stratus Jul 7, 2020, 12:06 PM

#

That's correct thought. Just make sure you set the Boolean on the Client too

#

Prediction

#

Otherwise they have to wait for the RPC and the Variable to both replicate

buoyant wedge Jul 7, 2020, 12:32 PM

#

@thin stratus this is my base third person character. I have 2 child character, one for team red and one for team Blu. Can be this the problem?

thin stratus Jul 7, 2020, 12:33 PM

#

You never explained the actual "Problem".

#

"is total mess" is not a problem :D

buoyant wedge Jul 7, 2020, 12:40 PM

#

My client character continue to lag (correction error) when I sprinting

#

https://cdn.discordapp.com/attachments/221799385611239424/729813244704718940/2020-07-06_23-34-49.mp4

▶ Play video

crude coral Jul 7, 2020, 12:47 PM

#

@buoyant wedge : you have issue with the sprint replication or the animation settings itself

buoyant wedge Jul 7, 2020, 12:54 PM

#

@crude coral I'm not sure. I have clear the animation blueprint of my character and the issue come when I sprinting. So I think the problem is with my character movement component and the replication. I'm go to work. This evening I investigate better 😊

crude coral Jul 7, 2020, 12:55 PM

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you don't have walking animation?

buoyant wedge Jul 7, 2020, 1:06 PM

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I have 2 walk animation. 1 for the player, so the arms and weapon and 1 a third person character for see the position of the player to other player.

crude coral Jul 7, 2020, 2:10 PM

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@buoyant wedge ok !

clear copper Jul 7, 2020, 2:18 PM

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@winged badger @chrome bay thanks for all your help yesterday guys, I managed to figure it out. It's probably not perfect but it's definitely working and doesn't take much overhead!

buoyant wedge Jul 7, 2020, 2:34 PM

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Rpc is a rep notify event? 🤔

chrome bay Jul 7, 2020, 2:36 PM

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negative

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rep notify is a function that gets called when a client receives a variable update from the Server

open terrace Jul 7, 2020, 2:40 PM

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I have an issues I can't solve, been trying for a few days now. I have a full grasp of Replication in UE4 but I have started using InstancedStaticMeshComponents and I can not seem to get the mesh to be visible on Clients. They are instantiated and instances are added to the array but nothing visible. Does anyone have any resources they could share on how I might solves this problem?

buoyant wedge Jul 7, 2020, 2:46 PM

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@chrome bay thx. So rpc is run on server, run on owning client and run multicast?

chrome bay Jul 7, 2020, 2:46 PM

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yeah

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@open terrace the component doesn't replicate the array of transforms. Components will only replicate properties that are marked to do so

open terrace Jul 7, 2020, 2:48 PM

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Thats the part I cant figure how to mark the transforms as a replicated property. Not sure of the right workflow to get them to replicated. Probably something simple.

chrome bay Jul 7, 2020, 2:50 PM

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You can't without changing engine source code

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What you would need to do is make your own array which copies the transforms, and you replicate that array instead.

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Then use a rep-notify to update the ISM transforms when it replicates.

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But, replicating an array of transforms is very not-cheap - so really it would be better if no network traffic was required at all.

open terrace Jul 7, 2020, 2:55 PM

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@chrome bay Thanks. I do keep hearing this but then I think, well landscapes and foliage in UE4 replicates all the time and very well. So there must be an easy way.

chrome bay Jul 7, 2020, 2:55 PM

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Landscape and foliage doesn't replicate anything

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That information is saved into the map

mellow haven Jul 7, 2020, 2:56 PM

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Hello, could anyone help me with my problem please? I have dedicated server hosted on AWS and in "Stand alone game play" it's working totaly fine, it connects to server, grabs a map and load it. But when I package the game and run it, it stops in my entry level and thats it. No error I can see, no obvious issue.

open terrace Jul 7, 2020, 2:58 PM

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well I will try and get your idea of On_Rep an Array of Transforms. See how slow it is.

chrome bay Jul 7, 2020, 2:59 PM

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It depends how many transforms you want to replicate - but replicating large arrays is very not advisable.

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Is there any reason you have to replicate them? Can't players just generate them locally?

jovial stream Jul 7, 2020, 3:04 PM

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In my server browser, I keep getting random servers that have properties that are impossible, like the map "greedybread" in this case or a 100 player server, my game isn't even published anywhere, so nobody has access to it, does anyone know what this is?

📎 unknown.png

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Im using the Steam online subsystem

open terrace Jul 7, 2020, 3:07 PM

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@jovial stream what AppId [i think that is whats its called] are you using to tell Steam what app you are? Did you set up your own identifier or are you using one provided in a tutorial? This is just a guess.

jovial stream Jul 7, 2020, 3:07 PM

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im using the default 480 appid

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I havent bought one on steam yet

open terrace Jul 7, 2020, 3:08 PM

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Ive never had that issue, but perhaps that is it?

jovial stream Jul 7, 2020, 3:08 PM

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idk im guessing that could be the problem

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i'll get one or two servers everytime I open the browser

open terrace Jul 7, 2020, 3:10 PM

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@chrome bay, my game will allow the instances to be modifed at runtime so it will need to update the server whenever the player interacts with an instance of the mesh.

buoyant wedge Jul 7, 2020, 3:19 PM

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@jovial stream it's normal with the steam app id 480. I had same issue and I write on the user name on steam. You can see random room of random ppl.

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I have know a other dev with this issue 😂

thin stratus Jul 7, 2020, 3:28 PM

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480 is used by everyone. Steam doesn't know your game is unique.

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If you want to remove that problem, get your own AppID

jovial stream Jul 7, 2020, 3:39 PM

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Yeah I figured that was it

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@buoyant wedge One time I got really confused and kinda creeped out when I first saw one of the servers and it was named "THE SHARD", and had an impossible number of players in it

flint beacon Jul 7, 2020, 5:16 PM

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quick question. shouldnt playerstate persist across seamless server travel? (at first glance it looks like my client side playerstate gets nulled during travel)

meager spade Jul 7, 2020, 6:31 PM

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@waxen socket i wouldn't ping someone to ask for a screen share, nor would i ping someone when that question could just be answered in here by competent people.

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and a lot of us work with UE4 for a living, so i doubt many would have time for a screenshare to fix someone's code, most need to relax 😄

waxen socket Jul 7, 2020, 6:40 PM

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Hey, Kaos. Thanks for the advice. I'll delete the message.

ancient moth Jul 7, 2020, 6:48 PM

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Hi ! Someone who already worked on multiplayer games ? I need someone to take a look on our project to find a bug blocking us since months...

safe spade Jul 7, 2020, 6:51 PM

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that would be incredibly expensive

ancient moth Jul 7, 2020, 6:52 PM

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Seriously, I'm starting to be that crazy that I can even paid for a fix T.T

dusty knot Jul 7, 2020, 7:02 PM

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I'm investigating some alternatives to using Steam as the OSS, can anyone offer some suggestions? So far I've only found UETOPIA

wicked brook Jul 7, 2020, 8:12 PM

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@dusty knot AWS/Gamelift or Microsoft/ Playfab are two

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I use AWS/ Gamelift myself

dusty knot Jul 7, 2020, 8:50 PM

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Thanks @wicked brook , was looking at their pricing

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Anyone used Photon and have opinions?

wicked brook Jul 7, 2020, 8:51 PM

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as far as i know photon is only p2p no dedicated. Could be wrong though

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also spatialOS is another one. but they kinda expensive

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make sure you set up linux servers when you choose one cause its way cheaper

buoyant wedge Jul 7, 2020, 9:50 PM

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@thin stratus this is my better result whith BP and rep notify. I think for better result i need to make a custom character movement on c++ 😦

📎 2020-07-07_23-41-34.mp4

uncut schooner Jul 7, 2020, 9:52 PM

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Hell, II am having a problem with replicating a third persons gun projectile, basically it gets set to the guns location and control rotation, it looks fine and all until I look at it from a clients point of view, then the location does not get replicated correctly but the rotation does

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📎 ScreenRecorderProject27.mp4

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As you can see in the beginning (while looking from a client) the projectile does not get put at the muzzle but when the server see's a client the projectile gets placed corectly

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I would really appreciate some help

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📎 1.png

terse prawn Jul 7, 2020, 10:05 PM

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Any reason that this wouldn't run on a client?
(the event hold fire is called from a button on a widget)

📎 Replication_Issues.png

frigid solar Jul 7, 2020, 10:06 PM

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So I'm just digging around for info on a dedicated server.
I just read that you NEED an engine source build in order to do so. But I haven't seen any reason why.
I think the person writing the guide is confusing engine source with project source. Like you can't have a code project unless you use an engine source build..

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https://www.ue4community.wiki/Dedicated_Server_Guide_(Windows)

Dedicated Server Guide (Windows)

limber yacht Jul 7, 2020, 10:09 PM

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@terse prawn That looks fine to me, maybe slap in some prints and see where it falls over?

terse prawn Jul 7, 2020, 10:10 PM

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@limber yacht when a client executes it, it runs past to the remote end of the switch has authority and wont go any further

limber yacht Jul 7, 2020, 10:11 PM

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100% its the owning client?

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Does anyone know where in the ShooterGame example the joining client actually loads the map active on the host server? I'm going through the example and can't seem to find that. Rebuilding/copy/pasting it for figuring out what the bits do, and so far I'm able to join the hosted session but it doesn't load the map active on the server.

tranquil yoke Jul 7, 2020, 10:20 PM

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Hey guys, if i have a level which is local to a player, like a character selection, then Character selects the info, Where should i save the data, and how would i open the Hosted Level

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and how would i pass the data to the player controllers so it can build its pawn , on that data ?

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And is it possible to do a server travel via blueprint ?

limber yacht Jul 7, 2020, 10:23 PM

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For your first and second questions, I've done that by using the savegame system. In the menu there's a character creation, it saves the info to a savegame file, then when you load into the level it loads that info back from the savegame and does whatever with it.

rustic spruce Jul 7, 2020, 10:24 PM

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well

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wrong page

tranquil yoke Jul 7, 2020, 10:24 PM

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@limber yacht I see, thats a way to do it.

rustic spruce Jul 7, 2020, 10:24 PM

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look thats should help you

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https://answers.unrealengine.com/questions/193521/easily-change-character-and-save-data.html

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this is similar to your situation

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https://docs.unrealengine.com/en-US/Gameplay/SaveGame/index.html

Saving and Loading Your Game

Overview of how to save and load your game

tranquil yoke Jul 7, 2020, 10:25 PM

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@rustic spruce Thanks, save game is covered, thats easy

rustic spruce Jul 7, 2020, 10:26 PM

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oh

tranquil yoke Jul 7, 2020, 10:27 PM

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Just needed to know , how would people do it for server travels, what is the right approach, you know.

limber yacht Jul 7, 2020, 10:27 PM

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I dunno if its the best way to do it, but it was the most straightforward. Just remember it'll be very trustful of the client's savegame data unless you throw in verifications

winged badger Jul 7, 2020, 10:27 PM

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if you have a lobby map and a play map

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and you do seamless travel between them (options to do so in gamemode, google knows how, and its possible in BP)

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your PlayerCOntrollers persist into next level, as do PlayerStates

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even if your play map has different PC/PS classes

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you can override CopyProperties on PS (also in BP) and transfer any data you want from old PS to new PS as new one is instantiated

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that data transfer will work only on server, but it has the data from all PlayerStates for all players

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then when you do a HandleStartingNewPlayer override, you have the new PC and new PS (or the old ones if you didn't change the classes between levels)

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(that being a GameMode function)

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and there you just spawn whatever you need to for player pawns

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default implementation just calls RestartPlayer() which spawns the default Pawn, so you might opt not to call parent when overriding it

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i would personally recommend using separate classes for Lobby and Game Controller/PS

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as it makes it easier to handle different functionality and avoid clutter

tranquil yoke Jul 7, 2020, 10:33 PM

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I understand, this is what i needed.

I am spawning different characters per player, so using a custom character spawn on post login.
Is this okay?

winged badger Jul 7, 2020, 10:34 PM

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when connecting to server

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PreLogin->Login->PostLogin->GenericPlayerInitialization->HandleStartingNewPlayer

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when doing seamless travel

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(from local PC) ServerNotifyLoadedWorld->HandleSeamlessTravelPlayer->GeneraicPlayerInitialization->HandleStartingNewPlayer

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since GenericPlayerInitialization is native only, HandleStartingNewPlayer is your common entry point for both types of connecting/traveling

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you should move your spawn logic there

tranquil yoke Jul 7, 2020, 10:36 PM

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Where do you get all of this information?

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This is gold.

winged badger Jul 7, 2020, 10:37 PM

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i did read the source code for the GameFramework... few times

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HandleSeamlessTravelPlayer is the function that swaps the PC/PS if the change of class is required, and also calls CopyProperties

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CopyProperties is basically a function where you have valid pointers to OldPlayerState and NewPlayerState at the same time

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so you can copy/transform/rearrange the data however you like

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and ofc, in HandleStartingNewPlayer override, you access the PS via the PC pointer, it will be valid, always

tranquil yoke Jul 7, 2020, 10:42 PM

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One last thing.
Seamless travel via blueprints?
How should i do this?

winged badger Jul 7, 2020, 10:43 PM

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ExecuteConsoleCommand(ServerTravel <params>) ... don't recall params off the top of my head, google will know

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and you check boolean for SeamlessTravel in the departing GameMode

tranquil yoke Jul 7, 2020, 10:45 PM

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@winged badger Thanks, what you have told me now is gold for me. Appreciate it.
Taking Screenshots

winged badger Jul 7, 2020, 10:46 PM

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the parameters can also take a GameMode class

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so you can open a new level with a GameMode of your choice, you're not restricted to one that is set in WorldSettings of that level

heady python Jul 7, 2020, 11:02 PM

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I have a problem where an enemy spawner In my game has a random enemy hovering above the spawner after about 5 seconds of gameplay clientside (Left window) but isnt there for the server (Right window).

📎 2020-07-07_15-59-39.mp4

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This is the script for the spawner

📎 EnemyBug.PNG

limber yacht Jul 7, 2020, 11:35 PM

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@heady python Try putting a Switch Has Authority in there and only running the code on the server. At a guess, the one floating above the spawn is spawned on the client, only exists on the client and so does nothing, but the one that moves is spawned on the server and replicated to the client.

heady python Jul 7, 2020, 11:37 PM

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@limber yacht that worked thank you! Ive been trying to fix this all day and it just took 1 node.

limber yacht Jul 7, 2020, 11:38 PM

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No problem.

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In general you want to only run code that affects the world on the server (in your case spawning enemies, and projectiles if you're worried about hacking/lagswitching/etc.)

heady python Jul 7, 2020, 11:41 PM

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gotcha

terse prawn Jul 7, 2020, 11:41 PM

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a multicast cant pass an array of actor references?

terse prawn Jul 8, 2020, 12:01 AM

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Bump.
the client gets to try and execute "Server Hold Fire" but wont go any further.
am i going insane or is there a way to fix this? loll

📎 Replication_Issues.png

wicked brook Jul 8, 2020, 12:40 AM

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@frigid solar you definitely need source build. Launcher build will not build the server target

limber yacht Jul 8, 2020, 1:14 AM

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Does anyone know where in the ShooterGame example the joining client actually loads the map active on the host server? I'm going through the example and can't seem to find that. Rebuilding/copy/pasting it for figuring out what the bits do, and so far I'm able to get a client to join the hosted session, but the client doesn't load the map active on the server.

placid sparrow Jul 8, 2020, 2:37 AM

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@terse prawn fairly certain you need to set Holding Fire only on the server since only the server can change replicated variables

terse prawn Jul 8, 2020, 2:43 AM

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@placid sparrow thank you for that I didnt realise how redundant that was but at the same time clients wanted to change that variable as well.

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my issues has been resolved. I was calling the hold fire from a widget. if I have the widget tell the controller to fire the event then it works.

twin juniper Jul 8, 2020, 3:35 AM

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does this look okay? on 4 player PIE dedicated

📎 unknown.png

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how does epic manage supporting 100 players like this

ocean geyser Jul 8, 2020, 3:55 AM

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@twin juniper whats that tool called

twin juniper Jul 8, 2020, 3:55 AM

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net profiler

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Programs>Epic Games>Engine version>Binaries>Dot NET>Network profiler

ocean geyser Jul 8, 2020, 4:01 AM

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thank you!

thin stratus Jul 8, 2020, 4:21 AM

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@terse prawn Whatever you are calling this on is not owned by the client that calls the rpc.

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You can't perform ServerRPC with every client on every actor.

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If it's something standing in the world, then you have to move the ServerRPC back into the character or playercontroller.

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Just saw you did already sort of figure that out..... Sorry :P Didn't check all history on phone discord.

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a multicast cant pass an array of actor references?
@terse prawn If these actors are replicated, then yeah you can send them over. Just keep in mind that they must have replicated to the client already

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how does epic manage supporting 100 players like this
@twin juniper They don't. They use the Replication Graph and tons of changes and improvements that you might not have access to. UE4, by default, can't manage 100 Players.

twin juniper Jul 8, 2020, 4:33 AM

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@twin juniper They don't. They use the Replication Graph and tons of changes and improvements that you might not have access to. UE4, by default, can't manage 100 Players.
@thin stratus

Is replication graph not enabled by default?

thin stratus Jul 8, 2020, 5:21 AM

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Don't think so. It's not suuuper stable last time i read about it

frigid solar Jul 8, 2020, 6:00 AM

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@wicked brook But there are options in the editor to run a dedicated server

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https://docs.unrealengine.com/en-US/Gameplay/HowTo/Networking/TestMultiplayer/index.html

Testing Multiplayer

Set up the Unreal Editor for testing multiplayer games.

wicked brook Jul 8, 2020, 6:01 AM

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yeah but thats just for testing. If you dont believe me then try to package a server target in launcher editor and you will see the errors

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it will say you need source version

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to actually package and build the server you have to have source

frigid solar Jul 8, 2020, 6:03 AM

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Ok thats fine. Makes sense.

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I still find some of the info on this page a bit odd though
https://www.ue4community.wiki/Dedicated_Server_Guide_(Windows)

Dedicated Server Guide (Windows)

wicked brook Jul 8, 2020, 6:05 AM

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what do you find odd?

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its pretty straight forward

frigid solar Jul 8, 2020, 6:06 AM

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Just flicking through now. I read it late last night. Might be why my brain is addled.

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I honestly have no idea to be fair.
I have created a world in 4.25, set the number of players to 2. But the players cant see each other

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Derrp. Needed to say play as listen server

wicked brook Jul 8, 2020, 6:09 AM

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listen server will mean one of the clients is also the server

frigid solar Jul 8, 2020, 6:09 AM

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Yeah I understand that

wicked brook Jul 8, 2020, 6:10 AM

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if you want to test for dedicated server you need to pick play as client and have dedicated server checked

frigid solar Jul 8, 2020, 6:12 AM

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I dont have the same option as whats on the UE4 docs page

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📎 unknown.png

wicked brook Jul 8, 2020, 6:16 AM

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you have to go into advanced settings

crude coral Jul 8, 2020, 6:17 AM

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that is my game from editor (UE4). with windows powershell for the locally testing of Agones SDK server...that the log when i play in UE4 editor with the dedicated game server option checked so i thought each 5 second receive logs... and if the dedicated game server option of UE4 editor not checked i not recieve logs messages with powershell... i am in the good way?

📎 local.PNG

thin stratus Jul 8, 2020, 6:25 AM

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If nothing is actively stopping that plugin from working in IE, then yeah, that's expected

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That's better suited for the Agones Forums (if they have any)

crude coral Jul 8, 2020, 6:42 AM

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suppose the dedicated game server detect clients and the client from main menu start for open session then other client come too and from the main menu click for check if is there any gamesession waiting for players the second player will travel to the same gamesession of the first player? or will open new one? (my game session need 50 players for start)

chrome bay Jul 8, 2020, 8:18 AM

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Is replication graph not enabled by default?
@twin juniper nope - you have to make your own implementation that's game-specific. It's pretty stable now, been using it on two projects for a while. Best resource for an example implementation is ShooterGame.

crude coral Jul 8, 2020, 8:19 AM

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the local testing of Agones SDK server work too with Linux inside my windows system..i use ubuntu shell..and as expected i recieve logs just if dedicated game server option of unreal checked

📎 ki.PNG

chrome bay Jul 8, 2020, 8:19 AM

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Also note that replication graph does nothing for bandwidth - it just reduces the servers' processing time for large numbers of actors/players

fresh pier Jul 8, 2020, 9:09 AM

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Hi guys, I´m trying to set up a multiplayer project for Oculus Quest where you can see the person who are you playing with (phisically), while you´re playing with them in the game. Is that hard to set up?

frigid solar Jul 8, 2020, 9:40 AM

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Anyone know of any guides to setting up multiplayer player controllers?

chrome bay Jul 8, 2020, 9:44 AM

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What do you mean by setting them up?

frigid solar Jul 8, 2020, 9:45 AM

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So say I have "Add Controller Yaw Input" in a player controller. Doesnt it need to verify which character it is referring to?

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So you do Get player Character. And the index is 0

chrome bay Jul 8, 2020, 9:45 AM

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No, controllers only exist on the server and the client only knows about local controllers

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Input is only processed by the person who actually owns the controller

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So you don't need to do anything, they just work

frigid solar Jul 8, 2020, 9:47 AM

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Yeah, that is odd. When I run the game in coop, both players are able to move, look and jump.
But the error log shows accessed none trying to read Add Controller Pitch Input

chrome bay Jul 8, 2020, 9:48 AM

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So long as you are adding input from an input event, it should work fine

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(show the code to make it easier)

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Oh wait hang on

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So you do Get player Character. And the index is 0 This is the problem

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Show the code, this doesn't make much sense to me

frigid solar Jul 8, 2020, 9:50 AM

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Sorry haha

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So. I know I am doing it wrong as I set it up for single player

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In the player controller, OnBeginPlay, I get a ref to the player character

📎 unknown.png

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📎 unknown.png

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Then I reference that later

chrome bay Jul 8, 2020, 9:53 AM

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Yeah don't do that - just call 'Get Pawn' to get the pawn that controller is actually possessing, and cast it to the character.

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It likely won't be valid at BeginPlay.

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You probably want to be processing character input in the character blueprint not the controller blueprint

frigid solar Jul 8, 2020, 9:53 AM

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But isnt that what the player controller class is for?

chrome bay Jul 8, 2020, 9:54 AM

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not at all

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Pawns have their own input components so you can setup bindings specifically for them

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Otherwise controllers would have to implement all of the input code for any pawn in the game

frigid solar Jul 8, 2020, 9:54 AM

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I've seen it done that way though.

chrome bay Jul 8, 2020, 9:55 AM

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It works, but it's not the correct way to do it

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And in multiplayer this stuff matters a lot more

winged badger Jul 8, 2020, 9:55 AM

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if you implement input in controller, and change pawns you'll regret it

frigid solar Jul 8, 2020, 9:55 AM

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Well I never

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haha

chrome bay Jul 8, 2020, 9:55 AM

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Yeah. caching the pawn at begin play won't work for long either. If you ever respawn or change pawns, RIP

frigid solar Jul 8, 2020, 9:56 AM

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What the hell is the controller for then?

chrome bay Jul 8, 2020, 9:56 AM

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It just exists as a representation of a human (or ai) player

winged badger Jul 8, 2020, 9:56 AM

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uh, mine has 2000 lines of c++ 😄

chrome bay Jul 8, 2020, 9:56 AM

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Which can then "possess" pawns

winged badger Jul 8, 2020, 9:56 AM

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mostly math figuring out what player is actually trying to do and trying to help

chrome bay Jul 8, 2020, 9:57 AM

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Think of it like Controller = Soul, Pawn = Avatar... or something like that

frigid solar Jul 8, 2020, 9:57 AM

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So... say I have a base character class. With all the health vars n jazz, as well as input stuff.
I would still derive from that class for player character and AI character classes?

chrome bay Jul 8, 2020, 9:58 AM

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Yeah for sure

frigid solar Jul 8, 2020, 9:58 AM

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Damn. I have some shizz to change

chrome bay Jul 8, 2020, 9:58 AM

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The input events will only be processed for the human player possessing it.

winged badger Jul 8, 2020, 9:58 AM

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to do that Pawn has to know how to execute all of its Actions

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it can't have a BT telling it how to pick up stuff

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or you'll never get a Pawn that can work with PC and AIC

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or how to attack