#multiplayer | Unreal Source | Page 319

wise bridge Apr 10, 2017, 8:46 PM

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If what I have found right now is the reason why shit wasnt working.... im going to flip this table.

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pardon my language!

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Nope wasnt that xD. Meh.

rocky meadow Apr 10, 2017, 9:09 PM

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can anyone explain to my why this happens?
https://cdn.discordapp.com/attachments/298863440787800065/301099035404533790/example.gif

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the replicated player always returns to its initial rotation, even if i overwrite it via RPC

twin juniper Apr 10, 2017, 11:48 PM

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@rocky meadow How are you driving the rotation?

rocky meadow Apr 10, 2017, 11:48 PM

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i got the lookpos to the mouse and rotate the skeletal mesh

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i fixed it using another skeletal mesh, not the inherited one

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but if you know why this is happening, i would be glad so i can use the defaukt

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i think its the AddMovmentInput Node from UE itself

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which overwrites the skeletal mesh rotation

twin juniper Apr 10, 2017, 11:49 PM

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Well, when it comes to character and replication it's always best to use the "Add Controller Rotation" and lock character to it

rocky meadow Apr 10, 2017, 11:50 PM

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if i do that my camera rotates to

twin juniper Apr 10, 2017, 11:51 PM

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Yeah I haven't done much top down stuff, but if you fixed it then all is good? 😃

rocky meadow Apr 10, 2017, 11:51 PM

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well dont know if i run into any issues because i dont use the inherited mesh

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hope not 😉

twin juniper Apr 10, 2017, 11:52 PM

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Are you on 4.14 or 4.15?

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4.14 have issues with inherited components

rocky meadow Apr 10, 2017, 11:52 PM

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15 i guess

twin juniper Apr 10, 2017, 11:53 PM

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Kk, should be fine then

fossil silo Apr 11, 2017, 2:09 AM

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Hey, can anyone break down the top level steps to spawn and replicate a particle emitter for me? I've been thru the google results and cant seem to get this working

twin juniper Apr 11, 2017, 4:45 AM

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@fossil silo I just have the server do a multicast RPC -> Spawn Emitter

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If it's in response to an event from a client it needs to go Client -> Server -> Multicast - > Spawn emitter

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In some scenarios you don't want it to be a reliable event but if you're having issues it might be worth checking the box

fossil silo Apr 11, 2017, 5:42 AM

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ok thank u! trying that now..was having client run on server event, and replicating the emitter but onlyu server was seeing

slim holly Apr 11, 2017, 5:44 AM

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wwhy isn't my variable replicating from gamestate

gaunt kestrel Apr 11, 2017, 5:53 AM

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@slim holly try doing a repnotify?

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if that doesnt work who knows

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maybe you dont have the right gamestate selected in your preferences

slim holly Apr 11, 2017, 5:55 AM

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regular rep or notify, it's connected to widget

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server sees the right values, client does not

gaunt kestrel Apr 11, 2017, 5:58 AM

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Widget- everything set to rep?

slim holly Apr 11, 2017, 6:00 AM

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doesn't really matter is is on rep or regular replication, its not replicating

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since I dont use the onrep function for anything

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on top, the widget is set to update itself once per sec

gaunt kestrel Apr 11, 2017, 6:03 AM

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Hmm

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I dont quite know

slim holly Apr 11, 2017, 6:16 AM

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well, its not using default values either

gaunt kestrel Apr 11, 2017, 6:23 AM

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Are you sure your gamestate is set to your custom gamestate?

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sometimes I forget to do that in the settings

slim holly Apr 11, 2017, 6:23 AM

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yes I'm pretty sure Im using correct gamestate because it handles creating the UI that isn't showing the proper values

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and according to my testing, this is the only variable that doesn't replicate

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no idea why

gaunt kestrel Apr 11, 2017, 6:35 AM

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I hate stuff like that

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its probably a checkbox somewhere

slim holly Apr 11, 2017, 7:05 AM

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alrighty then

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Timespan cannot be replicated

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good to know

worn nymph Apr 11, 2017, 9:41 AM

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@ctzn_07 ( ･ ؎ ۧ )ᕤ no it is known bug no date time variables replicate https://answers.unrealengine.com/questions/585179/problem-correctly-displaying-utc-datetime.html#answer-586424 . It's in the unreal tracker list but I doubt it's a high priority so don't expect them to fix it anytime soon . so you can either edit the source code and fix it yourself or use blueprints and find a way to do it manually which is easier for some things but difficult for others Also i believe there is a plugin that extends the blueprint library on the marketplace and it has fixes for problems with timespan and date time variables . Found here https://www.unrealengine.com/marketplace/low-entry-extended-standard-library

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@slim holly

slim holly Apr 11, 2017, 9:56 AM

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I was using timespan

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but apparently the issue is structures in general

worn nymph Apr 11, 2017, 9:57 AM

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Yes it is the same bug for timespan

slim holly Apr 11, 2017, 9:59 AM

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it was a generic structure with map name, timelimit scorelimit etc

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floats, ints and strings

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wouldn't replicate at all

worn nymph Apr 11, 2017, 10:03 AM

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@slim holly oh thought you meant you was using the actual timespan nodes . Hmm strange my structure replicates fine . Can you post the blueprints

slim holly Apr 11, 2017, 10:06 AM

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I already replaced it with regular individual variables

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it's menu values anyway, has no gameplay effect

worn nymph Apr 11, 2017, 10:09 AM

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Oh ok np :-p

slim holly Apr 11, 2017, 3:30 PM

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I wonder is this normal in large scale projects

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I'm getting latent loading of 2-3 seconds when connecting to server

opal sentinel Apr 11, 2017, 8:09 PM

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I have a board game where you control units on the board. When i destroy them i seem to be having an odd issue.

If im client 1 and i destroy my unit it all works fine. The unit is destroyed from both client 1 and client 2 and a message is displayed to both. Exactly how i want it.

Now if im client 2 and i destroy my unit, client 1 works fine, the unit destroys and the message appears. But client 2 for some reason changes its camera/view even though i am not using the pawns camera. (The message still appears on client 2.)

It doesnt seem to be related to replication..

I dont understand....

soft inlet Apr 11, 2017, 8:30 PM

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Is there a list of variables and such that should and need to always be replicated?

opal sentinel Apr 11, 2017, 8:33 PM

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like is there an array of replicated variables the pawn is a part of?

soft inlet Apr 11, 2017, 8:41 PM

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@opal sentinel if im correct, you need to run check if the function should only run on the server or if it should run on both the 2nd client and the server
For example if youre on the 2nd client it runs SRVSetDeath, and if youre the host it just runs set death.

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http://puu.sh/vh97s/294e7b1afe.jpg

opal sentinel Apr 11, 2017, 9:00 PM

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thanks for the help, still workin with it

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i guess my question would be, why would that affect the client 2 camera? If it were an issue like that, wouldnt it not be destroying it on the client 2 screen and destroying it on client 1? Ive tried running it with all different replication settings, on server, client, multi.. it all does the same stuff.... if the camera just stayed put it would all be perfect

gaunt kestrel Apr 12, 2017, 7:19 AM

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Anyone know a good reason why apply radial damage doesnt work in networking?

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Apply damage works fine

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but radial doesnt work

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Ahahahahaha

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you know what it was?

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my origin was set to the floor height.

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i added 5 to the z and it works

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ffs xD

jolly berry Apr 12, 2017, 7:48 AM

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anyway to get the server to pause the game for all players?

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like on a game over

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everyone slows down for a bit

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then pause and displays scoreboard?

raven holly Apr 12, 2017, 7:51 AM

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I'm trying to replicate ultra dynamic sky, but i can't seem to figure it out

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Anyone managed to do it?

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Got it 😄

fossil spoke Apr 12, 2017, 8:02 AM

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@jolly berry You would most likely need the Server to change the time dilation, the let it tell all clients to display the scoreboard, not sure if time dilation is replicated or not

jolly berry Apr 12, 2017, 8:03 AM

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will changing time dilation to 0 pause the game?

fossil spoke Apr 12, 2017, 8:03 AM

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Yes

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As far as im aware

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Never attempted it though but i would assume it does

jolly berry Apr 12, 2017, 8:03 AM

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alright gimme a sec, I noticed if u do one of those time nodes

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it doesn't actually fully stop

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but ill try setting it to 0 and seeing what happens

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yeah it doesn't get replicated that's all

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perfect thanks!

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it like pseudo gets replicated?

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i had to set it to 0 on the client side

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but the slowdown works fine through server

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weird

worn nymph Apr 12, 2017, 10:51 AM

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Should I be using object pooling for fast fireing weapons ? I used to use it a lot in unity but havnt seen much mention of it in unreal. For example if I have a assault rifle holding 300 round mag and can fire very quickly is it better to only spawn say 100 bullets and just keep pooling them ?

thin stratus Apr 12, 2017, 10:54 AM

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Yop

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But I would do it without pooling first

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And check if it really has an impact

rare cloud Apr 12, 2017, 1:28 PM

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I never understand why PlayerState is null on Character when it begin play (on server side)

mellow snow Apr 12, 2017, 2:50 PM

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Does Multiplayer require Steam to connect from Host - Client via IP addresses?

chrome bay Apr 12, 2017, 3:27 PM

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No

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You can use the Null subsystem

weak meteor Apr 12, 2017, 3:27 PM

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nope, just use
[OnlineSubsystem]
DefaultPlatformService=Null

mellow snow Apr 12, 2017, 3:38 PM

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Sweet, thanks guys.

thin stratus Apr 12, 2017, 4:05 PM

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@rare cloud Well, maybe because BeginPlay of an Actor is independent from what ever other references it has?

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That means the PlayerState is not yet created/set when the BeginPlay calls

rare cloud Apr 12, 2017, 4:06 PM

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yeah is already created but I guess it isn't set :/

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timer seem the only solution to solve the problem

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but seem a bit tricky

rare cloud Apr 12, 2017, 4:38 PM

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ok to solve the issue simply use PossessedBy instead of BeginPlay 😉

worn nymph Apr 12, 2017, 6:35 PM

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anyone know how to use the onPostLogin and On Logout functions on the game mode. i am trying to display a message in a widget whenever a player logs in or out eg "player1 logged in" but everything i try fails ,

gaunt kestrel Apr 12, 2017, 6:49 PM

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@worn nymph make suer your variables are replicating

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use Print String to help debug

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and use breakpoints to see if something is working

worn nymph Apr 12, 2017, 6:51 PM

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im not replicaating aa variable im caalling a custom event

gaunt kestrel Apr 12, 2017, 6:52 PM

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Would anyone know why my client is spawning in twice as many swords?

📎 ConstructionScriptSwords.png

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📎 TwoSwords.png

worn nymph Apr 12, 2017, 6:52 PM

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on post login cast to playercontroller caall player haas login event send message

gaunt kestrel Apr 12, 2017, 6:52 PM

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Screenshots?

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Just to be clear my server sees the correct number of swords

📎 ServerSword.png

worn nymph Apr 12, 2017, 7:20 PM

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login works but i cant get logout message to work and there is no way to debug becaause no breakpoints are hit when you close the game

thin stratus Apr 12, 2017, 7:32 PM

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@gaunt kestrel Probably getting the Replicated Version and the Client version

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I assume your sword is replicated

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Consturction Script runs on Client and Server

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Put the Spawning and Attaching of the Swords into BeginPlay and limit it to the Server (switch has authority)

gaunt kestrel Apr 12, 2017, 7:37 PM

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Uhhh now my players arent connecting to each other anymore

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Making it the sword "Only Relevant to owner" looks like it works

worn nymph Apr 12, 2017, 7:40 PM

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@thin stratus please save me i been trying this for days lol

thin stratus Apr 12, 2017, 7:41 PM

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Logout and Login are both called inside the GameMode

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they are already there

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And that happens on the Server

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So what are you doing to show the Message?

worn nymph Apr 12, 2017, 7:41 PM

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yes i know i haave login messages working i just cant get logout to work

thin stratus Apr 12, 2017, 7:41 PM

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Why not

worn nymph Apr 12, 2017, 7:41 PM

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i tried using logout aand end play node

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but i fear by the time those two nodes get caalled the widget is aalreaady destroyed and so i can send the message

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cant*

thin stratus Apr 12, 2017, 7:42 PM

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You want to open a Widget on the leaving player?

worn nymph Apr 12, 2017, 7:42 PM

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no in my player controller i have a chat widget

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thaat laayers use to send messaages to eaach other

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and it also sends system messages from the server

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so when i log in i send system message and all plaayer controllers listening to ths event dispach

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will get the system message aand diplay user has logged in

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but when i do the same for logout no message ever arrives

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in theory the message should try to send twice once to the player still log in aand once to the player logging out

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the player logging out it will obv drop

thin stratus Apr 12, 2017, 7:44 PM

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Why would it

worn nymph Apr 12, 2017, 7:44 PM

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but the player still left should get the message but it never works

thin stratus Apr 12, 2017, 7:45 PM

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On Logout -> Get all PlayerControllers (either that shitty node or save them in an array)

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And on each of them you call a Client RPC that sends the message

twin juniper Apr 12, 2017, 7:46 PM

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so

worn nymph Apr 12, 2017, 7:46 PM

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@thin stratus what like this?

📎 unknown.png

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what like this

twin juniper Apr 12, 2017, 7:46 PM

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i still dont know why steam doesnt show the correct usercount

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on my server

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it shows the correct max users

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but not current

thin stratus Apr 12, 2017, 7:51 PM

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For exmaple, yes @worn nymph Or just the generic "ReceiveMessage" function

fossil silo Apr 12, 2017, 7:51 PM

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hey guys, on a clients character, when hitting a "Run on Server" event from a character, when i pass a reference to the clients character thru a parameter, can i just make changes to replicated variables on that reference, and they replicate down?

also, when calling a server event, should I pass anything to the target? i.e. the reference to the character? does that mean "use your instances of this this character" for this event?

thin stratus Apr 12, 2017, 7:51 PM

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I usually have a Client RPC that tells the PlayerController to display a message i pass

worn nymph Apr 12, 2017, 7:51 PM

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when i try that i get accessed none in my server log

thin stratus Apr 12, 2017, 7:51 PM

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Well then just put "Is Valid" on the call

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It's probably that one player that leaves that's still i nthe array but flagged to die

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@fossil silo If you call the RPC on the Character

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Why would you pass the reference of it

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After that call you are INSIDE of the Character on the server side

fossil silo Apr 12, 2017, 7:54 PM

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actually i was thinking on a multicast sent after a server call

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ok, then that would be the same for the multicast then

thin stratus Apr 12, 2017, 7:54 PM

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Do you have an example screen of what you mean?

fossil silo Apr 12, 2017, 7:54 PM

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its weird, i am spawning particle systems on the character, but doing it on a server event, and only the server is seeing it

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yea one sec

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sorta complex so ill try to get the juicy bit

thin stratus Apr 12, 2017, 7:55 PM

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@fossil silo Well Particles aren'T replicated

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So if you that inside of the ServerRPC only the server spawns it

fossil silo Apr 12, 2017, 7:55 PM

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hrmm

thin stratus Apr 12, 2017, 7:55 PM

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You would need to do that inside of a Multicast

fossil silo Apr 12, 2017, 7:55 PM

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even on multicast?

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so the client hits a server event, which hits a multicast event, and that multicast will execute on the clients instance of the client that started it all?

thin stratus Apr 12, 2017, 7:56 PM

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ServerRPC moves to the Server Version

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ClientRPC to the Client Version

fossil silo Apr 12, 2017, 7:56 PM

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clientrpc being the multicast?

worn nymph Apr 12, 2017, 7:56 PM

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ok with the isvalid i get no aaccessed none errors but i also get no message sent

thin stratus Apr 12, 2017, 7:56 PM

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Multicast (needs to be called on the Server) moves to everyone

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No Multicast is a third thing

fossil silo Apr 12, 2017, 7:56 PM

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ohh u meant run on owning client

thin stratus Apr 12, 2017, 7:57 PM

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@worn nymph Then your system is not working :P

worn nymph Apr 12, 2017, 7:57 PM

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i know thqat i just dont get why

thin stratus Apr 12, 2017, 7:57 PM

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Print a message on the client RPC @worn nymph And see if it calls

worn nymph Apr 12, 2017, 7:57 PM

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login works fine

fossil silo Apr 12, 2017, 7:57 PM

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I am actually spawning a blueprint that contains a particle system...both set to replicate

thin stratus Apr 12, 2017, 7:57 PM

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@fossil silo You wanna read my compendium if basic RPCs are not yet fully understood

fossil silo Apr 12, 2017, 7:57 PM

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ive read it like 10 times 😛

thin stratus Apr 12, 2017, 7:57 PM

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Badum

fossil silo Apr 12, 2017, 7:58 PM

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i can pull off most of this stuff in a fresh project with ease, but for some reason our system is getting a bit complex to do what we need to, so its getting confusing a little

thin stratus Apr 12, 2017, 7:58 PM

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idk how Particles replicate

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I usually do ServerRPC->Multicast->Spawn Particles/Sounds

fossil silo Apr 12, 2017, 7:58 PM

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likely i should multicast

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ok

thin stratus Apr 12, 2017, 7:58 PM

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You can spawn the Particles directly on the calling client

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to minimize the lag

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Otherwise the calling client needs to wait for the Multicast

fossil silo Apr 12, 2017, 7:58 PM

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so passing around a reference to the actor calling server events is unecessary

thin stratus Apr 12, 2017, 7:59 PM

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You then would need to filter the owning client in the Multicast

fossil silo Apr 12, 2017, 7:59 PM

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wait, if im passing a reference to the one calling, then multicasting that down, the clients dont have that guy do they?

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i need to use the 'self' of that multicast instead

thin stratus Apr 12, 2017, 7:59 PM

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Why passing something

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What do you want to pass all the time :D

fossil silo Apr 12, 2017, 8:00 PM

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i guess i thought that they needed the reference to the calling actor...

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but self already is in there

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that may actually be what is in the way of this working

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im doing everything from a passed character, grabbing variables off of it and doing things to it

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that passed character will not be the actual clients reference when it gets down to all the other clients will it?

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thatll be the initiating clients reference

thin stratus Apr 12, 2017, 8:01 PM

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https://puu.sh/viceE/90932c5e87.png

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The well drawn character is all the same. Just the Client and Server instances

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If you call the RPCs you are moving to the correct instances anyway

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No need to do any passing of references

fossil silo Apr 12, 2017, 8:02 PM

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ok, but to clarify, the reference i pass would not == the clients reference?

thin stratus Apr 12, 2017, 8:02 PM

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Multicast also hits the server iirc

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Yes and No

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A reference is a pointer in c++

fossil silo Apr 12, 2017, 8:03 PM

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clients 'instance' i mean

thin stratus Apr 12, 2017, 8:03 PM

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That points to a location in your memory

worn nymph Apr 12, 2017, 8:03 PM

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ok some sucess the message fginaally sent but its missing the plaayer name lol

fossil silo Apr 12, 2017, 8:03 PM

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ahh

thin stratus Apr 12, 2017, 8:03 PM

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obviously that's not the same on all clients/server

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but the character that you pass gets passed as a net ID

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that links him to the other copies of him

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After all, only the server has the actual character

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the other ones are copies that are moving through the data tha the server sends

fossil silo Apr 12, 2017, 8:04 PM

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got it

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ok, thanks cedric, im gonna try to refactor this a bit and see if this might solve the issues

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appreciate all the insights 😃

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ohh snap, one last thing i forgot i wanted to ask

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actually, nvm i think u answered it for me earlier with a comment

worn nymph Apr 12, 2017, 8:07 PM

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@thin stratus ok its finaaally working except one bug. its printing the last person to log in name instead of the person that logs out, how do i get the right name from the playerstate?

thin stratus Apr 12, 2017, 8:08 PM

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Get the PlayerState from the leaving player?

worn nymph Apr 12, 2017, 8:08 PM

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yeah

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i need to set the player leaving name variable to be the player thats leaving name

thin stratus Apr 12, 2017, 8:09 PM

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Logout gives you the Playercontroller

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get the name from it

worn nymph Apr 12, 2017, 8:10 PM

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i have the naame saved in playerstate?

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so just drag off the leaving controller cast to player state get name?

thin stratus Apr 12, 2017, 8:11 PM

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:D Stop asking me and do it

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Get the PlayerState from the PlayerController of the leaving player

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And get the name from it

twin juniper Apr 12, 2017, 8:15 PM

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sooooooooooooooooooooooo

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on my server
it shows the correct max users
but not current```

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i even posted this as a bug report

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and epic ignores it

fossil silo Apr 12, 2017, 8:17 PM

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hey @thin stratus , if I am on a Run on Server event, and I hit another custom event (that is not run on server, just normal) does that trigger from the server? or from the original calling client?

thin stratus Apr 12, 2017, 8:53 PM

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Uff

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If you call an RPC you are moving over

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Everything you call in that RPC is called on that side

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ServerRPC moves to the Server version

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As long as you don't call a CLientRPC or multicast again, everything is on the server from that second on

fossil silo Apr 12, 2017, 9:05 PM

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Sweet ty

raven holly Apr 13, 2017, 5:07 AM

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Ping is * 4 right? from player state

tiny obsidian Apr 13, 2017, 6:15 AM

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Yeh

worn nymph Apr 13, 2017, 6:51 AM

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@raven holly Does that value work for non steam dedicated servers or is it a steam thing ?

raven holly Apr 13, 2017, 6:51 AM

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Yes

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Non-steam

worn nymph Apr 13, 2017, 6:52 AM

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Oh cool so I just get ping from playerstate *4 = actual ping

raven holly Apr 13, 2017, 6:52 AM

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yep

worn nymph Apr 13, 2017, 6:52 AM

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I love this group pick up so many new things . Thanks man I have a server list and been wondering how to do that for ages

raven holly Apr 13, 2017, 7:01 AM

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😄

vocal ingot Apr 13, 2017, 4:15 PM

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How to implement hit detection/shooting mechanics in UE4?

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All I know is Server has to rewind positions and check if it actually hit the enemy

torpid nymph Apr 13, 2017, 5:00 PM

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Hi everyone

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I'm trying to setup steam for online multiplayer, but I can only make it work in LAN

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I have on my uproject:

"Enabled": true
"Name": "OnlineSubsystemSteam",
"Enabled": true```

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target.cs
bUsesSteam = true;

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and build.cs :

        DynamicallyLoadedModuleNames.Add("OnlineSubsystemSteam");
        PrivateDependencyModuleNames.AddRange(new string[] {  });

        // Uncomment if you are using Slate UI
        // PrivateDependencyModuleNames.AddRange(new string[] { "Slate", "SlateCore" });
        
        // Uncomment if you are using online features
         PrivateDependencyModuleNames.Add("OnlineSubsystem");```

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on default engine I have this:

!NetDriverDefinitions=ClearArray
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")

[Voice] 
bEnabled=true
 
[OnlineSubSystem]
DefaultPlatformService=Steam
bHasVoiceEnabled=true
PollingIntervalInMs=20

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480
GameServerQueryPort=27015
bRelaunchInSteam=false
GameVersion=1.0.0.0
bVACEnabled=1
bAllowP2PPacketRelay=true
P2PConnectionTimeout=90

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="/Script/OnlineSubsystemSteam.SteamNetConnection"
AllowDownloads=false

[/Script/OnlineSubsystemUtils.IpNetDriver]
InitialConnectTimeout=120.0```

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do I need to have the steamsdk installed?

vocal ingot Apr 13, 2017, 5:26 PM

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Mp[e

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Dod you enable SteamOnlineSubSystem plugin?

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in Plugins menu

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@torpid nymph

torpid nymph Apr 13, 2017, 5:27 PM

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📎 unknown.png

vocal ingot Apr 13, 2017, 5:27 PM

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What's not working?]

torpid nymph Apr 13, 2017, 5:27 PM

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yes

vocal ingot Apr 13, 2017, 5:27 PM

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You cannot find each other's matches?

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Make sure you both set your steam region to be same

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if you're using valve's test id (=480)

torpid nymph Apr 13, 2017, 5:27 PM

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I find 0 sessions, I can only find a session if I create one locally (another pc on my lan)

vocal ingot Apr 13, 2017, 5:27 PM

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Is your friend hosting other session over the internet?

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and you cannot find it?

torpid nymph Apr 13, 2017, 5:28 PM

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yes

vocal ingot Apr 13, 2017, 5:28 PM

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you both need to have same steam region for appid=480

torpid nymph Apr 13, 2017, 5:28 PM

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where can I find that?

vocal ingot Apr 13, 2017, 5:28 PM

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Steam -> view -> Settings -> download

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Set "Download region" same as your friend has

torpid nymph Apr 13, 2017, 5:28 PM

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will test it out 😃 , thank you

green topaz Apr 13, 2017, 5:32 PM

#

Anyone have issues with a Standalone (launced via editor) not creating steam_appid.txt? its deletinmg steam_appid.txt if there is one present but its never generating a new one. It works on one PC, but not on another dev's machine.

torpid nymph Apr 13, 2017, 5:32 PM

#

just tested, @vocal ingot , same region, 0 sessions

vocal ingot Apr 13, 2017, 5:42 PM

#

@torpid nymph make sure LAN is not checked while finding/creating session

#

do you see Steam pop up when you start the game?

torpid nymph Apr 13, 2017, 5:43 PM

#

yes

vocal ingot Apr 13, 2017, 5:43 PM

#

Are you running stadalone?

torpid nymph Apr 13, 2017, 5:43 PM

#

yes

vocal ingot Apr 13, 2017, 5:44 PM

#

that's weird, make sure you both have same region exactly! For example make sure you both have "India - Mumbai" instead of "India - Delhi" and "India - Bangalore"

torpid nymph Apr 13, 2017, 5:44 PM

#

yea, it's exactly the same region "spain and portugal" 😃

vocal ingot Apr 13, 2017, 5:46 PM

#

Make sure it's not a LAN session

torpid nymph Apr 13, 2017, 5:47 PM

#

📎 unknown.png

vocal ingot Apr 13, 2017, 5:47 PM

#

and make sure Max Results in "FInd Session" is greater than 0

torpid nymph Apr 13, 2017, 5:48 PM

#

📎 unknown.png

vocal ingot Apr 13, 2017, 5:49 PM

#

can you try searching again

torpid nymph Apr 13, 2017, 5:50 PM

#

😐

#

you did some magic on your end? 😄

#

it's working now 😄

vocal ingot Apr 13, 2017, 5:50 PM

#

Nice 😃

torpid nymph Apr 13, 2017, 5:50 PM

#

my god, thank you so much

#

already lost almost a full day trying to understand this thing 😃

drowsy zodiac Apr 13, 2017, 5:54 PM

#

@torpid nymph i have this same issue with people I test with. Out of 4 people only two can host. We run into the scenario where others and myself cant find the session. I think I have heard something about it having to do with the steam heartbeat?? I really don't know and haven't looked into it

torpid nymph Apr 13, 2017, 5:56 PM

#

maybe that explains why the first time I tried it, it didn't work, these things probably go away if you have your own appid I would assume

vocal ingot Apr 13, 2017, 5:57 PM

#

Maybe your friend didn't destroy session correctly when hosting again.

#

make sure you always destroy session before finding match and before hosting a match

twin juniper Apr 13, 2017, 7:36 PM

#

@torpid nymph Can confirm, 480 cause inconsistencies. I recommend comparing the results to your unique build ID and filter thatway

#

I'm trying to decide between using Gamesparks or Playfab for leaderboards/matchmaking etc. I'm wondering if anyone has experience with both or could tell me why they picked one over the other. Currently Playfab seems to provide more features, but I would like to get some information on the topic

lost inlet Apr 13, 2017, 9:46 PM

#

using a third party service like that terrifies me

#

especially if you're storing data on their service

#

most platforms have stuff already available for leaderboards and matchmaking

twin juniper Apr 13, 2017, 10:46 PM

#

also

#

u can't actually find sessions

#

in editor

#

idk if ur doing that

dawn ember Apr 13, 2017, 10:47 PM

#

Hey guys, is there any reference to how the game mode, game state and player state work in detail?

#

I want to let players pick a character from a list after they connect to the server and persist that information across disconnects and map changes

twin juniper Apr 13, 2017, 10:49 PM

#

GameInstance

#

carries across maps

dawn ember Apr 13, 2017, 10:50 PM

#

What can i use to map the player to the character in the game instance?. Is there any ID or something that is assigned by the game and it doesnt change irrespective of disconnects?

twin juniper Apr 13, 2017, 10:51 PM

#

map the character?

#

oh

#

UniqueID

#

of playerstate

dawn ember Apr 13, 2017, 10:53 PM

#

@twin juniper Thanks that helps a LOT!

twin juniper Apr 13, 2017, 10:53 PM

#

Your welcome

dawn ember Apr 13, 2017, 10:53 PM

#

for the future is there a reference or something that I can use to get better at finding these things?

twin juniper Apr 13, 2017, 10:53 PM

#

uhm

#

https://docs.unrealengine.com/latest/INT/API/

#

its pretty useless tho, a lot of stuff isnt documented

#

basically

#

u have to sit there

#

and read

#

for hours on end

#

until u find what u need

#

Nice book to read before bedtime

dawn ember Apr 13, 2017, 10:55 PM

#

Im really interested in how the entire thing works under the hood.

#

haha

#

alright ! thanks again

twin juniper Apr 13, 2017, 10:55 PM

#

😄

twin juniper Apr 13, 2017, 11:22 PM

#

hey so

#

if u spawn a Actor on the server

#

and the player isnt near by it

#

does it just not spawn unless u have bAlwaysRelavant set to true?

#

nvm i got it lel

twin juniper Apr 14, 2017, 12:26 AM

#

@lost inlet Data would only be game play relevant, but I'm guessing you're afraid if you store users CC information?

#

I don't have that on the timeline, and it'd mostly be statistics gathering/experience etc

lost inlet Apr 14, 2017, 8:32 AM

#

no, i don't want to rely on someone else's backend infrastructure

#

these online service companies tend to get acquired after not too long, and what happens to your data?

#

they could withdraw their services at any time

#

for basic mm/leaderboards, that's best left to the platform (steam/xbl/psn/etc)

void canopy Apr 14, 2017, 10:15 AM

#

UE4 devs, I have a doubt. If I do not create sessions, would I be able to use voice chat commands ?

#

sessions means online sessions*

#

I need to know :/ ¯_(ツ)_/¯

#

Devs

#

any guidance ?

thin stratus Apr 14, 2017, 10:39 AM

#

That depends on the service you are using

#

If you connect via IP to a Server

#

you should technically still be able to send voice data

desert breach Apr 14, 2017, 11:47 AM

#

So that means i can use online::voiceservice functions of unreal, in the clients where i connect via ip @thin stratus

#

I have got connected my clients to server via ip. Now can i use these functions to trigger voice communication?

#

I read in some forums that i need to initiate session service first. But its not written officially anywhere

#

<@&276089159905705985> please some anwers here. I request.

wintry cove Apr 14, 2017, 11:51 AM

#

What

#

Why am i summoned :p

desert breach Apr 14, 2017, 11:52 AM

#

Provided my session service is not initiated. I haven't created any sessions

wintry cove Apr 14, 2017, 11:52 AM

#

Epic stream team @ is accidentally?

desert breach Apr 14, 2017, 11:53 AM

#

Hey , i have a doubt regarding voice chat services. I haven't created any sessions, but im connected wity my server via ip. Can i use onlinesubsystem methods to enable voice chat?

#

I'm sorry for that @wintry cove

#

If that question is not for you

#

I want to ask epic devs.

wintry cove Apr 14, 2017, 11:54 AM

#

No biggie :p a lot of people seem to wrongfully @ us

desert breach Apr 14, 2017, 11:54 AM

#

Got epic stream team accidentally

wintry cove Apr 14, 2017, 11:55 AM

#

We aren't with epic, just created by them. We oversee hosting by the unreal engine twitch account :)

desert breach Apr 14, 2017, 12:07 PM

#

@queen holly unreal and @thin stratus please guide

#

@wintry cove roger! 😊

thin stratus Apr 14, 2017, 12:41 PM

#

I haven't used voice yet

#

Can't answer this question

supple musk Apr 14, 2017, 2:42 PM

#

Hey guys,

I have a slight interrogation. Replicated player pawns on the server, do they have a reference to their player controller ?

#

I think i read that the player controller is present on the client side, and has a replicated version on the server

lost inlet Apr 14, 2017, 2:59 PM

#

on a dedicated server, you only know about your own player controller

supple musk Apr 14, 2017, 2:59 PM

#

on a listen server*

lost inlet Apr 14, 2017, 2:59 PM

#

?

supple musk Apr 14, 2017, 3:00 PM

#

there's a client that acts as server

lost inlet Apr 14, 2017, 3:00 PM

#

i know what a listen server is

#

but the hosting client on a listen server knows about every player controller

#

any CLIENT to a server only knows about their own player controller

supple musk Apr 14, 2017, 3:00 PM

#

oh ok

#

thing is, i got a trigger box that calls a method if it has authority

#

so only on the server

#

But the characters return nullptr as a controller

#

only the local player has a controller reference

lost inlet Apr 14, 2017, 3:02 PM

#

post the code/BP?

supple musk Apr 14, 2017, 3:02 PM

#

void APlayerAreaTracker::NotifyActorBeginOverlap(AActor* OtherActor)
{
if (!HasAuthority())
return;

APFECharacter* character = Cast<APFECharacter>(OtherActor);
if (!character)
    return;

manager->RegisterPlayerArea(this, character);

}

#

This is the triggerbox code

#

I get a "RegisterplayerArea" for every character that triggers

lost inlet Apr 14, 2017, 3:04 PM

#

so where does controller come from in the RegisterPlayerArea function?

#

really you'd be calling character->GetController() somewhere

supple musk Apr 14, 2017, 3:05 PM

#

mb on the copy pasta

#

void ADynamicAISpawnerManager::RegisterPlayerArea(APlayerAreaTracker* area, APFECharacter* character)
{
GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Green, FString("RegisterPlayerArea!"));

AController* controller = character->GetController();
if (!controller)
    return;

GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Green, FString("controller"));

APFEPlayerController* playerController = Cast<APFEPlayerController>(controller);
if (!playerController)
    return;

GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Green, FString("playercontroller"));

APFEPlayerState* playerState = Cast<APFEPlayerState>(playerController->PlayerState);
if (!playerState)
    return;

GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Green, FString("playerstate"));

}

lost inlet Apr 14, 2017, 3:05 PM

#

is controller nullptr or just playerController?

supple musk Apr 14, 2017, 3:06 PM

#

controller

#

is null

lost inlet Apr 14, 2017, 3:10 PM

#

that really doesn't make much sense on a server, you can add a breakpoint and inspect the actor that's triggering it

junior tree Apr 14, 2017, 3:53 PM

#

what is the net cheapest & most reliable way to replicate input?

#

I was thinking blueprint reliable event but that's probably not the case is it

hybrid raft Apr 14, 2017, 4:02 PM

#

can anyone tell me if the pointer indexes for menu interaction on vive controllers need to be unique to a player or across all players?

#

i.e if i have 2 players with 2 vive controllers, each controller has a widget interaction component, do i need 0,1 on both players or 0,1 on player 1 and 2,3 on player 2 ?

twin juniper Apr 14, 2017, 6:26 PM

#

https://issues.unrealengine.com/issue/UE-44006

#

upvote this pls

twin juniper Apr 14, 2017, 8:33 PM

#

How do I setup voice chat using steam?

proper olive Apr 14, 2017, 11:08 PM

#

How do you do, fellow multiplayer programmers http://i2.kym-cdn.com/entries/icons/original/000/018/666/fellowkids.jpg

#

Today's lesson I learned: make sure you test everything in multiplayer every time you change stuff, cause you never know when some random variable not being set on server will cause an engine crash when you go to use some other part of the program in multiplayer for the first time cause you just assumed that other part would work

vocal ingot Apr 15, 2017, 1:23 PM

#

Difference between GameMode and GameModeBase?

brittle sinew Apr 15, 2017, 2:00 PM

#

GameMode is a subclass of GameModeBase and has all of the features that GameMode had before the refactoring (4.13? 4.14?)

#

GameModeBase is more bare, but allows more customization of flow, especially for non-FPS games

marsh gate Apr 15, 2017, 3:42 PM

#

Unreal Engine was made originally for and mainly used for FPS games (Unreal Tournament). Because Epic's base game mode class before 4.14 had FPS specific features that certain game modes wouldn't really make use of and would in turn cause unneccessary performance hits, they made the more rudimentary GameModeBase.

All UE4 projects made after 4.14 by default use GameModeBase

#

@vocal ingot

vocal ingot Apr 15, 2017, 3:42 PM

#

got it 😃

#

Would it be better for me to use AGameMode if I am making a FPS?

marsh gate Apr 15, 2017, 3:43 PM

#

indeed

#

check the documentations for its extra handy features

twin juniper Apr 15, 2017, 4:19 PM

#

So question

#

anything u dont want the client to be able to edit

#

should just be replicated right?

#

so like if i have a timer, where a number decreases by another variable "decrementalAmount" should decementalamount be replicated

vocal ingot Apr 15, 2017, 4:26 PM

#

How does AGameMode::Broadcast work?

brittle sinew Apr 15, 2017, 4:28 PM

#

Just looking at the source will be your best resource here

#

It uses APlayerController::ClientTeamMessage, if you want to see what that does just go down the rabbit hole 😛

summer nova Apr 15, 2017, 4:50 PM

#

is there some way to call server functions from a client ignoring the owner chain?

#

apart from just going to the controller or similar

#

im doing some reverse clientside detection, where its the enemy who hits the client. If the enemy hits you in "your" screen, you get hit for real

#

of course, the client doesnt have the enemy bot in the owner chain, so i got to go through the controller to avoid it

#

(yes, im fully aware its hacky as fucking hell)

#

but im not worried about cheating, im doing PvE VR swordfighting, and i need the player to be able to block stuff and riposte and other fancy stuff, without any kind of delay or lag

#

also, becouse im doing fancy stuff with physics on the enemy sword, so dedicated server gets a bit bugged from the lower tick rate.

twin juniper Apr 15, 2017, 4:54 PM

#

why is find player start not a virtual function

#

lul

#

why should it

summer nova Apr 15, 2017, 4:55 PM

#

Works as this right now: Server tells enemy to perform an attack, this goes to a multicast. Client sees the enemy doing the attack animation, and tries to block or whatever. While in the animation, the enemy sword does precise traces (lots of them) on its path. If it hits you but not the shield, it damages you(clientside). Any ideas?

#

you sure its not a virtual function?

#

i remember it was split or something

brittle sinew Apr 15, 2017, 5:03 PM

#

Because you can't have a BlueprintNativeEvent be virtual

#

I think you can still override the _Implementation function though

#

@summer nova each client should have a controller they can call server events onto, I know you mentioned you wanted something else but it might just be the easiest route...it really shouldn't even matter what PC you call it on as long as you pass a reference of the enemy along

#

I'm not aware what part of the engine doesn't allow you to call server RPCs on unowned actors...you might be able to edit that out in your own build, but I'm not sure how easy that would be

summer nova Apr 15, 2017, 5:12 PM

#

its what im doing right now @brittle sinew

#

im calling a client function that "forwards" the damage event to the victim

#

given that i have my own DamageComponent, its all handled properly

#

but it kind of has to pingpong from server to client or do hacky stuff, so i wondered if there is a better way

#

now i have an OK melee combat system for my dungeoning VR game im prototyping

#

as its PvE i dont have to care about one player vs other desyncing

#

they can desync slightly, but not much. Only the animation itself might desync

vocal ingot Apr 15, 2017, 5:47 PM

#

@brittle sinew I did look at source. There's no definition for ClientTeamMessage, only declaration.

brittle sinew Apr 15, 2017, 5:47 PM

#

Umm

#

{
    FString SMod = S;
    static FName NAME_Say = FName(TEXT("Say"));
    if( (Type == NAME_Say) && ( SenderPlayerState != NULL ) )
    {
        SMod = FString::Printf(TEXT("%s: %s"), *SenderPlayerState->PlayerName, *SMod);
    }

    // since this is on the client, we can assume that if Player exists, it is a LocalPlayer
    if (Player != NULL)
    {
        UGameViewportClient *ViewportClient = CastChecked<ULocalPlayer>(Player)->ViewportClient;
        if ( ViewportClient && ViewportClient->ViewportConsole )
        {
            CastChecked<ULocalPlayer>(Player)->ViewportClient->ViewportConsole->OutputText(SMod);
        }
    }
}```

vocal ingot Apr 15, 2017, 5:48 PM

#

Oh, but it does not have a BlueprintImplementable or BlueprintNativeEvent specifier?

brittle sinew Apr 15, 2017, 5:48 PM

#

It's an RPC

#

RPCs use _Implementation

vocal ingot Apr 15, 2017, 5:49 PM

#

Now it's clear

#

Thanks!

twin juniper Apr 15, 2017, 8:07 PM

#

Has anyone gotten voice chat on steam working?

ivory parcel Apr 16, 2017, 12:37 AM

#

I have an odd problem with steam that I am hoping someone can help with
We just started to release our game to a small number of testers on steam and while all the developers have no problems every single tester cannot get the steam SDK to load

#

For developers (using the same steam branch and depots) the game loads fine, however for the testers they ultimately fail to load the SDK with the following message
LogOnline: Unable to create OnlineSubsystem module Steam

nocturne copper Apr 16, 2017, 3:46 AM

#

Has anyone here had any luck with being able to control opacity on a client skeletal mesh?
I can do all the other functions with dynamic material paramers but controller opacity with a scaler value is giveing me some trouble for some reason
I am useing RepNotfiys to handle the materail changes for when the characters are built when they join a game

twin juniper Apr 16, 2017, 5:32 AM

#

@twin juniper Using steams API or built in VOIP?

#

The built in VOIP works with SteamSubsystem

slim holly Apr 16, 2017, 6:29 AM

#

Question: I have actor reference on Host that needs to be updated to all controllers, what's the most reasonable way to do this?

#

asyncronously

#

ie new controller joins the game, it will get the same reference

thin stratus Apr 16, 2017, 10:37 AM

#

@slim holly OnPostLogin

slim holly Apr 16, 2017, 10:38 AM

#

not gonna work, reference changes during gameplay

thin stratus Apr 16, 2017, 10:38 AM

#

@ivory parcel Sounds like the plugin is not packaged?

slim holly Apr 16, 2017, 10:39 AM

#

I'm just gonna go with onrep foreach loop

thin stratus Apr 16, 2017, 10:41 AM

#

@slim holly You want to give a new controller the same ref

#

To give someone a ref you need to have the tef

#

Ref*

#

If you have it, pass it on postlogin

#

I don't see the issue

slim holly Apr 16, 2017, 10:42 AM

#

host creates and destroys particular actor during gameplay

#

so new players need the ref, and existing players need the new ref

#

as onrep

#

since it's partitially replicated actor

thin stratus Apr 16, 2017, 10:44 AM

#

You can't pass the ref if the client doesn't have a rep version of it

slim holly Apr 16, 2017, 10:44 AM

#

the actor is replicated, so ref would be valid

#

but the actor content has to be manually replicated due to data size

thin stratus Apr 16, 2017, 10:45 AM

#

Yeah but wouldn't the actor already replicate when spawned or destroyed

#

Ah okay

#

Why not letting the actor handle that

slim holly Apr 16, 2017, 10:45 AM

#

it will timeout

#

too much data

#

wait

#

that might actually work, when host spawns it, the actor does multicast to update refs

#

triggering onrep function, and clients can get the data content

ivory parcel Apr 16, 2017, 11:43 AM

#

@thin stratus It was odd, all the users had todo was restart steam

#

but it makes no sense why only they had problems

twin juniper Apr 16, 2017, 1:08 PM

#

@twin juniper either? What's the difference?

slim holly Apr 16, 2017, 2:25 PM

#

yuss

#

now both client and server can automatically modify the same actor

twin juniper Apr 16, 2017, 6:45 PM

#

@twin juniper Steam has their own voip "Steam calling" which you can do through their chat client. I believe you can use their api for VOIP specific to your games. Unreals voip works over all platforms and only requires you to change a config var

#

^

#

Supposedly, it's a little harder than that and I'm not getting the best quality

#

i want to be able to chat in game

#

like in ark

#

Have a look at @heady merlin's Advanced Sessions Plugin unless you want to write it yourself in C++

#

I can't say the built in voip as is, is production ready though

vocal ingot Apr 16, 2017, 7:27 PM

#


    /** Returns whether this Controller is a locally controlled PlayerController.  */
    UFUNCTION(BlueprintCallable, Category="Pawn")
    bool IsLocalPlayerController() const;

    /** Returns whether this Controller is a local controller.     */
    UFUNCTION(BlueprintCallable, Category="Pawn")
    virtual bool IsLocalController() const;

Difference between these two?

slim holly Apr 16, 2017, 7:32 PM

#

controller type is different?

#

could be AI controller too

sterile plaza Apr 16, 2017, 9:09 PM

#

afternoon

#

I'm working through a lobby tutorial and I have it so that my server can switch to another level and the client can connect to that. But when my server switches to it's other level, the client loads my main menu and I can't figure out why.

#

The client should do nothing.

#

Server calls OpenLevel with "listen".

#

It seems very simple.

twin juniper Apr 17, 2017, 1:33 AM

#

@sterile plaza You need to use the "servertravel" command to bring all the clients

sterile plaza Apr 17, 2017, 1:34 AM

#

I worked through this tutorial more and it goes over servetravel there.

twin juniper Apr 17, 2017, 1:34 AM

#

The session is already open, so you don't need to open another listen session

sterile plaza Apr 17, 2017, 1:35 AM

#

Yeah, I think it's a bit awkward playing in PIE because it's already connected.

twin juniper Apr 17, 2017, 1:36 AM

#

Yeah servertravel doesn't really work over PIE, you need to play it either as packaged or right click the .uproject and choose "Launch game"

#

Sorry, seamless servertravel doesn't work

sterile plaza Apr 17, 2017, 1:38 AM

#

packaging now to test

#

what does uproject launch game do?

#

run it with -game instead of -debug?

#

it works!

#

so question...

#

the client was able to find the server session when running on my computer

#

How does it know what to connect to? Is this going to work across different machines? How does it resolve IP?

sterile plaza Apr 17, 2017, 2:14 AM

#

Wait, can I use steam for my indie project?

#

ooh

fossil spoke Apr 17, 2017, 2:28 AM

#

@sterile plaza Yes

sterile plaza Apr 17, 2017, 2:28 AM

#

badass

fossil spoke Apr 17, 2017, 2:29 AM

#

If you want to release however you must submit it to Steam on their GreenLight program

sterile plaza Apr 17, 2017, 2:30 AM

#

what does release mean in this context?

#

What if I give it to people and don't sell it?

ripe forge Apr 17, 2017, 5:44 AM

#

Can anyone point me to any thread where I can read up on making a ue game entirely online?

#

What Im aiming for is: Player boots up game Game verifies if he has a connection or not Game loads main menu with realtime info such as in game item sales or new content

#

I pulled it off with a peer to peer model, but this requires a dedicated server for the scale.

tawny raven Apr 17, 2017, 5:50 AM

#

Well, with what you're wanting you can always use the "check online subsystem" and it can verify if a certain subsystem is live/online and you can then use branches to then allow different widgets and UI's

ripe forge Apr 17, 2017, 5:51 AM

#

So itll try and join the main server and have the ui force loaded from the server?

fossil spoke Apr 17, 2017, 5:51 AM

#

@ripe forge You would most likely need an MasterServer or hook into an Database backend service that would hold that information, if you manage to verify an connection then the client would request that new updated information

tawny raven Apr 17, 2017, 5:53 AM

#

^Like that. Since I'm using Steam in mine, I check and see if Steam is running

If True, it'll load up the main menu with the "Play" Button, Options, Credit, and more.
If False, it'll display a Widget which tells the user that the Subsystem Steam is not running and they must either start with Steam or restart the game.

ripe forge Apr 17, 2017, 5:54 AM

#

I see I see now I understand that part, now if Id like the store and such to be constantly updated in real time how would I go about that

tawny raven Apr 17, 2017, 5:56 AM

#

Depends on how you'd get it/hook it. If you're using a website, you may be able to hook it in C++(I only use Blueprints, so I wouldn't know!)

ripe forge Apr 17, 2017, 5:58 AM

#

Shit.... then if I was to use a website, itll load the elements from there when the game starts up

#

Or ill be constantly hitting the server with pull requests on new content from the store which wouldnt be good...

#

@tawny raven @fossil spoke Thanks for the help though guys, I'm gonna edit my design doc with this new information and maybe budget for a server.

fossil spoke Apr 17, 2017, 6:03 AM

#

@ripe forge "Realtime" can be a relative term somewhat. You dont have to poll an Server every frame to get constant updates.

#

You could request updates once every second or every 2 seconds

#

Would still count as "realtime" updates

#

But less stress

ripe forge Apr 17, 2017, 6:05 AM

#

Tempted to add 3 instances where they recieve updates.

Game Start
Refresh Button (with a 5 second lock per click)
After every session ends

fossil spoke Apr 17, 2017, 6:05 AM

#

An refresh with an cooldown is an good option

spark igloo Apr 17, 2017, 9:38 AM

#

Hey guys while building a Multiplayer game the listen server is always spawning the character at origin instead of picking the player start location while other players are spawning at their playerstart location how can we solve this?

fossil spoke Apr 17, 2017, 9:59 AM

#

Make sure there isnt an Pawn Actor in the level at that location that is being auto possessed by the server

spark igloo Apr 17, 2017, 10:43 AM

#

Hey in my level i didn't have any pawn actor at origin. i just created an empty new level and placed my player starts but it didn't worked out. Here is the screenshot of the oce i am using

#

📎 listenserver.JPG

#

in the above screenshot index value is given to the get of playerstart array

twin juniper Apr 17, 2017, 12:45 PM

#

Does anyone know how to send a large, one time data transfer to clients? Basically at map load. Any useful resources you can point me to?

red ledge Apr 17, 2017, 2:08 PM

#

I'm struggling with widgets in multiplayer

#

whenever I try to get an item of an array through the widget the server has, it always gives an out of bounds error and crushes

#

I set the number of a replicated array to 50 on Beginplay (C++) but the widget that I create after this with a refrence to the actor component detects it's like there's 0 items in the array on the server

#

the client can normally get the 50 items

twin juniper Apr 17, 2017, 2:13 PM

#

@red ledge servers dont have widgets

#

im confused

#

ur trying to replicate an array?

red ledge Apr 17, 2017, 2:14 PM

#

listen server

twin juniper Apr 17, 2017, 2:14 PM

#

hm?

red ledge Apr 17, 2017, 2:15 PM

#

I have a replicated array

#

I set the size of it to 50 on ther server at begin play

#

and I have a widget that has a refrence to the actor componenet that has the inventory

#

when I access it from a client, it shows that it was set to 50 items correctly

#

but on the listen server (authority) it crashes because it shows that there's no items there

#

I'm sure in both cases that the array has 50 items on the component, I print it to ake sure

#

but accessing it from the widget gives weird restults

twin juniper Apr 17, 2017, 2:19 PM

#

im not sure if listen servers can have UI

#

sorry i dont use listen servers

#

so i dont want to feed u the wrong information

#

lol sorry

red ledge Apr 17, 2017, 2:58 PM

#

nvm, it worked without change anything, I think it might have been a problem in the editor

#

but now it doesn't detect the widget on the client for some reason sigh

twin juniper Apr 17, 2017, 3:02 PM

#

lol

#

what do u mean

#

detect the widget

red ledge Apr 17, 2017, 3:22 PM

#

I mean it gives null

#

it's fucking up in weird ways

#

when I play with 2 clients it goes grazy

#

when I play with 4 it works???

summer nova Apr 17, 2017, 4:09 PM

#

do you know how to check if a controller is truly the local controller?

#

Is Local Controller returns true for the controllers on the server

red ledge Apr 17, 2017, 4:15 PM

#

I check for local controller as well

#

I'm sure the code is correct, the OnScreenDebugMessage works

#

but the widget doesn't work well for some reason

#

rebuilt it and it worked

#

restarted the engine it didn't work

lost inlet Apr 17, 2017, 6:06 PM

#

is it possible to test the steam OSS in PIE?

chrome bay Apr 17, 2017, 6:31 PM

#

No

#

Have to build out if you want to test a Steam connection between two clients

twin juniper Apr 17, 2017, 7:14 PM

#

@lost inlet so far as i know lol

#

if u find out

#

please tell me

raven holly Apr 18, 2017, 7:00 AM

#

What steam version is UE using atm?

fierce birch Apr 18, 2017, 7:19 AM

#

@raven holly string SteamVersion = "v132";

#

on 4.15

spice glen Apr 18, 2017, 7:27 AM

#

Hey guys, maybe someone will be able to help me. I had a line trace in character blueprint. It was working fine on both ends client and server. But once I moved that line trace to weapon blueprint, server stopped seeing clients trace. The weapon blueprint is replicated, inside it calls to server and multi casts to everyone.

raven holly Apr 18, 2017, 7:30 AM

#

ok cool

#

Just doing all my steam integration now ^_^

lost inlet Apr 18, 2017, 9:21 AM

#

prepare to fix a lot of stuff yourself

#

i'm trying to disable the peer to peer sockets for dedicated right now

#

need to get working user auth too

thin stratus Apr 18, 2017, 10:01 AM

#

@spice glen Is the ServerRPC reaching the server?

#

If not, how do you spawn the weapon? You need to make sure to set the owner on the weapon

#

That's usually done by plugging the controller reference of the client into the spawn actor nodes Owner parameter

#

I usually spawn my weapons in the character on beginplay (switch has authority to limit it to the server)

#

And the use "GetController" for the owner

#

Or just self

#

Self might be better here as beginplay calls before the pawn is possessed

slim holly Apr 18, 2017, 10:41 AM

#

🤔

#

My OnRep is getting significantly delayed

#

I mean, like 10 seconds

#

and the weird thing, it's not even saturated

#

server can totally see clients character input

#

but client is still not aware that match has started

#

because the status update OnRep is not triggering

slim holly Apr 18, 2017, 11:08 AM

#

LogBlueprintUserMessages: [RecoilController_C_0] Server: Updating UI to: ScoreBoard_C
LogBlueprintUserMessages: [RecoilGameState_C_0] Server: [11:7:34.157] - MatchOn
LogBlueprintUserMessages: [RecoilGameState_C_0] Server: MatchOn
LogBlueprintUserMessages: [RecoilController_C_0] Client 0: Updating UI to: ScoreBoard_C
LogBlueprintUserMessages: [RecoilGameState_C_0] Client 0: [11:7:56.807] - MatchOn

#

that's a very long OnRep Delay

lost inlet Apr 18, 2017, 11:12 AM

#

took a bunch of changes but i finally got our modified steam OSS to not use p2p sockets

#

for dedicated

twin juniper Apr 18, 2017, 7:36 PM

#

Server crashes

#

by using an old client?

#

thats terrible

#

how do i fix this

obtuse zinc Apr 18, 2017, 9:56 PM

#

So I have all sorts of network stuff and replication set up, and im working on game mode/game state/ player state stuff. For some reason, when I launch PIE with 2 or more players, and I fire, my print statement always says that PlayerController_0 is firing, even though it's a different actor thats firing

#

And on load it is also saying that all characters except for my first character dont have controllers

pale vapor Apr 18, 2017, 10:05 PM

#

is your print statement running on the server?

#

PC 0 is the local player for clients

obtuse zinc Apr 18, 2017, 10:08 PM

#

hm no, but my print statement looks like this:

#

TEXT("%s possessing: %s"), *GetName(), *ControlledPlayer->GetName());

#

and thats in my playercontroller class

#

and this is the result:

#

LogTemp:Warning: MyPlayerController_0 possessing: BP_FPSCharacter_C_0
LogTemp:Warning: MyPlayerController_0 possessing: BP_FPSCharacter_C_0

pale vapor Apr 18, 2017, 10:09 PM

#

sounds right?

obtuse zinc Apr 18, 2017, 10:09 PM

#

Each client thinks it's own pawn is the same name?

#

And each client thinks it's own player controller is PC 0?

pale vapor Apr 18, 2017, 10:10 PM

#

Each client only has the one PC

obtuse zinc Apr 18, 2017, 10:10 PM

#

yeah

pale vapor Apr 18, 2017, 10:10 PM

#

so it'll be PC 0

obtuse zinc Apr 18, 2017, 10:10 PM

#

right, but those prints above are from 2 different clients, so would one of them know their pawn is BP_FPSCharacter_C_1?

pale vapor Apr 18, 2017, 10:11 PM

#

don't think so

obtuse zinc Apr 18, 2017, 10:11 PM

#

hm

pale vapor Apr 18, 2017, 10:11 PM

#

but not sure

obtuse zinc Apr 18, 2017, 10:11 PM

#

weird, thanks

#

more research

twin juniper Apr 18, 2017, 10:52 PM

#

GetSimulationTimeStep() - Max iteration 8 hit while remainint time 0.410193 > MaxSimulationTimeStep (0.050) for Character_BP movement 'walking'

#

what is this

hot veldt Apr 18, 2017, 11:00 PM

#

How does player hosted multiplayer without port-forwarding work in games like Civilization 5 and Gta Online?

pale vapor Apr 18, 2017, 11:13 PM

#

UPnP

#

maybe

hot veldt Apr 18, 2017, 11:26 PM

#

How did you guys implement multiplayer in your games? What do you think is the most seamless way to allow players to host their own servers for about 4 people? I really like the idea of integrating it all into the game. I don't have a need for dedicated server because every session is basically just a match without persistence on the level

brittle sinew Apr 18, 2017, 11:56 PM

#

Isn't UPnP LAN only?

#

I would look into NAT punchthrough—I've seen it used for this purpose before

#

Figuring out the whole flow, however, is a much bigger issue

twin juniper Apr 19, 2017, 12:04 AM

#

http://i.imgur.com/F7vetLm.png

#

whut is this

jolly berry Apr 19, 2017, 3:22 AM

#

hey is it possible a variable doesn't reliable replicate?

#

I ask because I have a ServerRevealFirstObjective that changes a int that's replicated to all clients

#

however sometimes the int is replicated, and sometimes it's not

#

and I can't figure out why, it almost seems abritrary

slim holly Apr 19, 2017, 5:56 AM

#

saturation maybe?

#

I had solid 29sec replication delay on single enum yesterday

#

and still do

#

trying to fix it

void canopy Apr 19, 2017, 7:10 AM

#

Hey guys ! I'm in Host Session function. I'm trying to create session right now. My " OnCreateSessionCompleteDelegateHandle = Sessions->AddOnCreateSessionCompleteDelegate_Handle(OnCreateSessionCompleteDelegate);" is making the game crash. What possibily be the reason ? I've initialized the delegate in constructor as " OnCreateSessionCompleteDelegate = FOnCreateSessionCompleteDelegate::CreateUObject(this, &AVizGameSession::OnCreateSessionComplete); "

#

/help

lost inlet Apr 19, 2017, 8:49 AM

#

RTS games usually work peer 2 peer

#

GTA Online is also an example on how to never design your multiplayer

#

the client can cheat ANYTHING in GTAO

slim holly Apr 19, 2017, 10:32 AM

#

so ,anyone have ideas how to get around this replication delay when using bunch of reliable rpc's

#

I just did Steam online test, behavior is exactly the same as in PIE

#

RPCs transfer at desired speed, but nothing replicates for solid 15 seconds after it stops

#

I might add, If I set it to unreliable every other call will fail

#

which is not ideal situation

slim holly Apr 19, 2017, 10:53 AM

#

This is from server host start to start match

📎 unknown.png

#

that's a pretty big gap where nothing happens

#

waiting for 1 enum replication

lost inlet Apr 20, 2017, 1:55 PM

#

can you debug when a player fails an RPC validation?

rare cloud Apr 20, 2017, 8:35 PM

#

I search a way to get all relevant pawns for a client

odd atlas Apr 20, 2017, 9:08 PM

#

Is it possible to have multiple people in a game without cooking it? (Is it possible to test the game in editor with multiple people in the editor?)

twin juniper Apr 20, 2017, 9:44 PM

#

you mean other person has files just to run editor uncooked? or multiple editor on same computer?

lost inlet Apr 21, 2017, 9:21 AM

#

LogNetTraffic:Error: ReadContentBlockHeader: Stably named sub-object not found with a child actor component

#

not sure what would cause this

full bane Apr 21, 2017, 9:46 AM

#

this can happen when you add components at runtime, which I assume causes this

#

calling https://docs.unrealengine.com/latest/INT/API/Runtime/Engine/Components/UActorComponent/SetNetAddressable/index.html should fix it

lost inlet Apr 21, 2017, 9:52 AM

#

turns out it was a BP adding an actor, just switched it over to use a child actor component instead

#

and everything is fine

wise depot Apr 21, 2017, 4:54 PM

#

hey guys, anyone know why End Play or Destroyed don't get called on game modes in seamless travels?

jolly berry Apr 21, 2017, 6:58 PM

#

What's the common approach to adding fire rate to a server/client game? Usually on the client I have the projectile spawn immediately but now that I wanna add a fire rate I'm not too sure how to do that properly. I would normally think of adding a delay to the client and then the same delay on the server side but my assumption is if there's discrepencies in ping then the client could end up firing a rocket when the server isn't yet allowing it to fire one

#

The way I setup my projectiles is to spawn locally on the client first right away, then ping the server to multicast to every other client to spawn their own local versions of the projectile

#

if I just added a delay to the local client side that's prone to hacking?

#

I figure u also have to have the server have the delay as well, but then let's say I delay it on the client and then delay it on the server. If it took 80ms to ping to the server that there's a delay in effect, but then I suddenly improved my connection to 40ms and tried firing at the exact moment my fire rate is available again locally, isn't it possible I'd ping the server and still be 40ms behind when the delay would complete server side?

#

Should I be using ping as a factor here or am I overthinking this?

jolly berry Apr 21, 2017, 7:34 PM

#

http://i.imgur.com/4snO3yv.png

Imgur

#

i believe this worked

slim holly Apr 21, 2017, 7:47 PM

#

server should do the logic

#

simple boolean IsTriggerDown is the best approach

#

client should not have power over how and when it fires

wary willow Apr 21, 2017, 8:23 PM

#

Has anyone gotten Slice Procedural Mesh to work in MP?

jolly berry Apr 22, 2017, 4:50 AM

#

would anyone have a clue why when I server travel from my lobby to my main map it loads for like a second and then the listen server player crashes

#

and then every other client returns to main menu

#

[2017.04.22-04.47.52:464][757]LogGameMode: >> GameMode::HandleSeamlessTravelPlayer: LobbyPC_C_0 [2017.04.22-04.47.52:466][757]LogGameMode: << GameMode::HandleSeamlessTravelPlayer: GameplayPC_C_0 [2017.04.22-04.47.52:466][757]LogGameMode:Display: Match State Changed from EnteringMap to WaitingToStart [2017.04.22-04.47.52:469][757]LogGameState: Match State Changed from EnteringMap to WaitingToStart [2017.04.22-04.47.52:473][757]LogSlate: Took 0.000170 seconds to synchronously load lazily loaded font '../../../Engine/Content/EngineFonts/Faces/RobotoRegular.ufont' (155K) [2017.04.22-04.47.52:531][760]LogGameMode: >> GameMode::HandleSeamlessTravelPlayer: LobbyPC_C_1 [2017.04.22-04.47.52:532][760]LogGameMode: << GameMode::HandleSeamlessTravelPlayer: GameplayPC_C_1 [2017.04.22-04.47.52:563][762]LogScriptCore:Warning: Script Msg: DestroySession - Invalid player state

weak meteor Apr 22, 2017, 5:38 AM

#

There is no error there, try running your listen server from visual studio so you can break where it crashes

jolly berry Apr 22, 2017, 5:45 AM

#

how do i do that?

#

@weak meteor

weak meteor Apr 22, 2017, 5:49 AM

#

Follow the programming setup guide in UE4 docs, the unrealvs plugin is useful too. Then just run with MAPNAME?listen from vs and connect from your client build and vs will break when the server crashes

jolly berry Apr 22, 2017, 6:03 AM

#

how do i test a standalone built version?

#

i tried attaching but

#

it can't find source for it

#

since i guess its cooked

#

I need to test server travel

weak meteor Apr 22, 2017, 6:04 AM

#

You can just hit debug from vs and run it straight from vs, don't need to attach

jolly berry Apr 22, 2017, 6:05 AM

#

how do I point vs to debug the standalone exe

#

i appreciate it

#

sorry

weak meteor Apr 22, 2017, 6:05 AM

#

I don't know

#

I just run straight from vs

jolly berry Apr 22, 2017, 8:45 AM

#

yo thanks for that advice

#

ended up finding the error and fixed everything

#

I was able to actually play the game I've been building for months with a couple friends. That was pretty cool haha

#

Not sure what I did exactly but I got it to debug through source code even when attached to a standalone exe

#

so yeah, thanks man! @weak meteor

weak meteor Apr 22, 2017, 11:35 AM

#

What was the error out of curiosity? :)

spark igloo Apr 22, 2017, 2:17 PM

#

how do we intiate login using facebook and give permission to app to give access to user's info(friends etc..) ?

#

I am now using Loginwith facebook(playfab block and with access token) in ue4 , its working . but what if the access token is exprired or not available ?

jolly berry Apr 22, 2017, 9:42 PM

#

@weak meteor I was having my world objects manually ping my HUD when to update. They all had a reference to the HUD

#

on the Server (even though it was a listen server) I believe either HUD or something within the methods being called was acting on nullptrs

#

I basically just removed all references of HUD from the world objects and had the HUD manually check the objects for the data it needs

#

better encapsulation this way anyway

#

but yeah the error pointed to one of my HUD-> calls

#

I commented it out and then another HUD-> call from a different world object crashed it

#

so I learned there just to have the HUD handle things by itself and not have world objects worry about it. Makes sense too cause the HUD should be able to decide how it wants to render information, the objects shouldn't force the HUD to

pale vapor Apr 22, 2017, 11:31 PM

#

Anyone here have any idea why my character movement is jittery, only for the character's player's client? I'm calling AddMovementInput from the client to do movement.

I've also tried calling it from the server, but then clients couldn't move.

I tried calling it from Server who then tells the client to call it but that had the same effect as just calling it from the client directly.

This only happens with listen server too

twin juniper Apr 23, 2017, 8:02 AM

#

is your AddMovementInput fed from an inputcomponent ?

balmy pike Apr 23, 2017, 12:56 PM

#

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\Microsoft.MakeFile.Targets(44,5): error MSB3075: The command "....\Build\BatchFiles\Build.bat UE4Server Win64 Development -waitmutex" exited with code 5. Please verify that you have sufficient rights to run this command.

Has anyone encountered such a problem? When building a server.

robust wind Apr 23, 2017, 12:57 PM

#

Is the file editable?

balmy pike Apr 23, 2017, 1:11 PM

#

It seems that yes

lost inlet Apr 23, 2017, 6:31 PM

#

the build output might give more information

glossy hound Apr 23, 2017, 11:34 PM

#

Anyone know why a dev server build would be a success but no server.exe would be created?

raven holly Apr 24, 2017, 4:03 AM

#

📎 unknown.png

#

Why does UE cut off player name 😦

#

It's limiting the characters

cedar galleon Apr 24, 2017, 6:41 AM

#

Hey guys i have question

#

When i replicate destruction mesh, the debris all client see the different location, but is correct?

worn nymph Apr 24, 2017, 7:26 AM

#

@balmy pike yep had same issue just clean out the project folder by deleting all the not needed derived folders . Delete the visual studio files including the database file then regenerate them by right clicking on the project . Then rebuild server . Worked for me

weak meteor Apr 24, 2017, 8:38 AM

#

@cedar galleon that sounds correct, replicating physics objects is not going to work over a network game without some significant work and having little else in your network traffic. Destructible mesh should be cosmetic-only in a multiplayer game, so will look different on everybody's machine

cedar galleon Apr 24, 2017, 10:10 AM

#

@weak meteor tk man

slim holly Apr 24, 2017, 2:02 PM

#

does anyone know how to increase client net speed cap

#

anything I found with google is outdated

wise depot Apr 24, 2017, 3:21 PM

#

so apparantly, there is absolutely zero gaurantee that player controller zero is the local player on a p2p host

#

after a couple of games bouncing between maps/gamemodes etc, my host's GetPlayerController(0) returns one of the connected players

brittle sinew Apr 24, 2017, 3:23 PM

#

Is it ever said that there is one? I avoid those types of index find functions for chiefly that reason

wise depot Apr 24, 2017, 3:51 PM

#

well if you look through the answer hub/forums etc of how to get the local player controller on servers they pretty much all hint at zero should always be the local

#

also @raven holly UE4 limits player names to 20 characters

raven holly Apr 24, 2017, 3:51 PM

#

:c

wise depot Apr 24, 2017, 3:52 PM

#

do you use engine source?

#

@raven holly if you use the engine source, GameModeBase.cpp:705

FString InName = UGameplayStatics::ParseOption(Options, TEXT("Name")).Left(20);

change that 20 to whatever you want it to be

raven holly Apr 24, 2017, 3:56 PM

#

Yep

#

Cheers

brittle sinew Apr 24, 2017, 4:04 PM

#

@wise depot I think those people either A. see it experimentally be index 0 once and extrapolate off of that or B. just hear it from others and repeat it

#

I've seen nothing official to support that, so yeah, I wouldn't trust it

wise depot Apr 24, 2017, 4:04 PM

#

yeah probably the latter

#

either way if anybody else is having this issue:

world->GetFirstLocalPlayerFromController()->GetPlayerController(world)

#

that should return the first local player controller.

Which does not gaurantee it is the primary player in splitscreen

#

there is a check for primary player somewhere I just can't remember where

jagged coral Apr 25, 2017, 8:13 AM

#

Hi, could someone please explain to me how Vehicle System (Main Pawn is ThirdPersonCharacter and players can possess vehicles) on Server-listener should be build? My system works but my vehicles on Client and Server side shake uncontrollably for some reason. 😦

sterile pebble Apr 25, 2017, 2:51 PM

#

what is good place to store reference of managers, that every actor in player world can get without server calls? I dont care about cheating, its only FX stuff.

slim holly Apr 25, 2017, 5:21 PM

#

Gamestate is common ground between clients and server

topaz flame Apr 25, 2017, 6:36 PM

#

Hello, I've been working on a multiplayer game for a bit, purely in the editor, and everything has been going okay, but now I'm trying to understand how to implement standalone dedicated servers properly. Do I need to/can I maintain separate projects for client/server? How does that affect replication when it comes to things like packaged content/plugins etc? If anyone has any resources they could suggest it would be much appreciated 😄

thin stratus Apr 25, 2017, 6:38 PM

#

No, it's the same project

#

Download the Source, build it and then change the Engine Version of your project to it

#

Then you can open Visual Studio and build a Dedicated Server of your project

#

There are tons of wiki articles etc about this

#

In addtion

#

to split client from server code

#

https://forums.unrealengine.com/showthread.php?17941-Dedicated-server-code-split-from-client-code

#

That might be interesting

topaz flame Apr 25, 2017, 6:44 PM

#

Yeah I found the wiki(s) for building dedicated servers and I know if can be done this way but I wondered if real games used separate projects, stripping graphics and things the server might not need or want for security like secret keys for connecting to platforms like playfab/gamesparks. After building my server (which works normally in the editor), it crashes with an OSVR error and I wondered if the server should even be running OSVR...

#

ty for that link

twin juniper Apr 25, 2017, 8:43 PM

#

@thin stratus does that link you posted above actually split all of the code?

#

whats inside of FortniteServerClasses.h

#

lol

thin stratus Apr 25, 2017, 8:49 PM

#

@twin juniper No idea, didn't read it

twin juniper Apr 25, 2017, 8:49 PM

#

o

#

l0l

regal hazel Apr 26, 2017, 8:38 AM

#

Is there a unique net ID / GUID for actors that is available on both Client and server?

lost inlet Apr 26, 2017, 11:03 AM

#

yes, the one on the playerstate

regal hazel Apr 26, 2017, 11:23 AM

#

I'm talking about on a per actor basis

twin juniper Apr 26, 2017, 1:20 PM

#

so uhm

#

has anyone figured out

#

https://answers.unrealengine.com/questions/586976/getmaxplayers-broken-in-steamsubsystem.html

#

this

pallid mesa Apr 26, 2017, 1:35 PM

#

is the sha-256 available in unreal 4.15+ vanila? If negative, do you know about any decent plugin?

raven viper Apr 26, 2017, 1:54 PM

#

Hey peeps. Anyone knows why the Find/Create session it not working on iOS? We are trying using "NULL" subsystem. Works perfectly on PC and on Android, but on iOS it's literally nothing.

twin juniper Apr 26, 2017, 2:05 PM

#

@raven viper NULL subsystem

#

is only lan i believe

#

i think iOS has its own subsystem doesn't it?

#

http://i.imgur.com/Dwoqe3y.png

Imgur

#

It does lol

raven viper Apr 26, 2017, 2:11 PM

#

iOS has it's own subsystem, but it is not working for packaging. Weird as hell

#

https://answers.unrealengine.com/questions/585824/onlinesubsystemios-not-found.html

#

It is actually not solved, they just marked it immediately.

#

And yes, for NULL, we are trying LAN here.

summer rivet Apr 26, 2017, 4:40 PM

#

super stupid question I hope but if I have an actor in the world on the map in a dedicated server, say an NPC Character, and I join with my client do I end up with 2 unique characters or is the character on the server the same as the one on my client just replicated? I only ask as that stuff is present in the game world when I load it in the client so I don't know if it's checking with the server and just connecting them or if its a completely unique character on client and server

raven viper Apr 26, 2017, 10:24 PM

#

Depends on whether you are replicating the given actor or not. It can be either.

hollow pond Apr 26, 2017, 11:44 PM

#

Has anyone used Amazon's GameLift with dedicated servers?

twin juniper Apr 27, 2017, 1:00 AM

#

If a variable isnt replicated

#

does that mean that someone can edit the variable

#

using Cheat Engine

#

lol

brittle sinew Apr 27, 2017, 1:08 AM

#

I'm not aware of safeguards against it (if any), but I'd assume if the client has complete control over a local variable they could.

#

If you let them use that value in an authoritative way though, that's just asking for trouble 😛

#

In the end, however, that's mostly the job of an anti-cheat

twin juniper Apr 27, 2017, 1:22 AM

#

heh

#

I do wonder tho

#

how do u fight against it

#

VAC seems completely useless

brittle sinew Apr 27, 2017, 1:26 AM

#

And I completely disagree. :p

#

Just because it has garnered a reputation of being lackluster, which I don't think is completely fair, doesn't mean it's a useless AC

twin juniper Apr 27, 2017, 2:09 AM

#

i mean

#

conan got so many hackers

#

ARK has tons of hackers

#

cs;go has hackers even

#

it doesnt seem to do much tbh

brittle sinew Apr 27, 2017, 2:14 AM

#

Then don't use it, feel free

#

And Conan doesn't use VAC...?

heady delta Apr 27, 2017, 2:25 AM

#

server admin is best anti hack imo

raven holly Apr 27, 2017, 2:41 AM

#

conan uses EAC

#

wait no they use battleye

#

battleye is trash

jolly berry Apr 27, 2017, 3:44 AM

#

How do I guarantee my editor will test multiplayer replication stuff like standalone will? The reason I ask is because I have a aiming system that happens on Tick for my rocket launcher. It was replicating beautifully in the Editor but when I tested on a shipped product it wasn't replicating at all.

#

It leads me to believe it's NOT actually replicating and the editor is just doing it on its own somehow

#

If I say have a component called Rocket Launcher attached to my Actor, and for my Aiming Component's on Tick it raycasts from the camera to the ground and then tells the rocket launcher to rotate towards that point, how could I replicate that to server/clients?

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On server do you have access to every camera for each pawn?

twin juniper Apr 27, 2017, 7:14 AM

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@jolly berry You can't guarantee it, which is why you need to test and set up some debugging tools that you can use in a packaged game as well

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The "always" works for replication on tick is Has Authority - > Multicast to all

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But that can be expensive, so think about how you want to use it and how important it is

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You can also just do it every tick client side, and send the multicast at a different rate

slim holly Apr 27, 2017, 8:21 AM

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there's no guarantee other than knowing how it actually should work

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and general rule of "no tick" applies to it aswell

hollow pond Apr 27, 2017, 10:31 AM

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Hey guys, when building Dedicated servers, do the clients also need to be built from the source? Or could I use the standard version to do it?

weak meteor Apr 27, 2017, 10:38 AM

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you should build from the same source to guarantee no differences

hollow pond Apr 27, 2017, 10:55 AM

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Thanks, @weak meteor

celest falcon Apr 27, 2017, 12:28 PM

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Hey, I'm trying some multiplayer things for the first time, and trying to change a material from a blueprint. The material changes, but only on the client where the BP function is called. How would I also change it on the other clients and server? As I said, first time doing multiplayer, so very much a noob at this...

weak meteor Apr 27, 2017, 1:06 PM

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there are quite a lot of concepts behind networking and getting multiplayer working which are good to know first, have you gone through any of the tutorials and docs?

twin juniper Apr 27, 2017, 2:27 PM

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@brittle sinew so they have their game on steam, yet they intentionally opted out of VAC?

brittle sinew Apr 27, 2017, 2:33 PM

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I'm not sure how VAC integration works tbh, I don't think it's a simple opt out though

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I'm guessing it's more of an opt in in discussions with Valve directly

twin juniper Apr 27, 2017, 2:42 PM

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lol.

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opt in?

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wat

brittle sinew Apr 27, 2017, 2:47 PM

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As in, you don't automatically get VAC by publishing a game on Steam?

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According to the Steam page, there are 482 Steam games using VAC

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There are currently ≈ 14000 total games on Steam

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You do the math

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😉

twin juniper Apr 27, 2017, 3:01 PM

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lol.

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but they didnt opt in

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is what im saying

brittle sinew Apr 27, 2017, 3:13 PM

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Well when you say "intentionally opt out" that sounds a bit different, I'm guessing it's a lot of work to integrate VAC in with a game

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But correct, either way Conan does not run VAC

twin juniper Apr 27, 2017, 3:48 PM

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;l

jolly siren Apr 27, 2017, 4:45 PM

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yay it's finally logged

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https://issues.unrealengine.com/issue/UE-44432

twin juniper Apr 27, 2017, 8:25 PM

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@jolly siren i havent even gotten it to work right

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set it all up perfectly too

jolly siren Apr 27, 2017, 8:26 PM

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lol

twin juniper Apr 27, 2017, 8:26 PM

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😛

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it just spams

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"Overflow in the voice channel dropped 1 packet"

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and thats it

twin juniper Apr 27, 2017, 8:52 PM

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i was under the impression you get vac out of the box, wasnt ue3 like that with udk ?

brittle sinew Apr 27, 2017, 8:57 PM

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Yeah, what I said earlier about talking with Valve about it isn't completely accurate

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But it still needs to be implemented in the game well, and that takes time+resources

jolly siren Apr 27, 2017, 9:56 PM

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So if you unpossess an autonomous proxy character it becomes an simulated proxy character

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interesting

jolly siren Apr 27, 2017, 10:16 PM

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Is there anyway to check if a controllerless character is local?

jolly siren Apr 28, 2017, 12:01 AM

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Unpossessing a character causes it's role to change from AutonomousProxy to SimulatedProxy? I can work around that. However, it looks like it stops COND_OwnerOnly replication too...😵
Has anyone dealt with that?

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@rough iron ^ ❤

twin juniper Apr 28, 2017, 1:30 AM

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@jolly siren why would u want to check that

jolly siren Apr 28, 2017, 1:32 AM

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Code that relies on Role and COND_OwnerOnly breaks when Character is unpossessed

twin juniper Apr 28, 2017, 2:58 AM

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@jolly siren overwrite UnPossess()?

rough iron Apr 28, 2017, 3:33 AM

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When you unposses it posses it with another controller that handles your custom logic

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An AI one for example, there is no repliction anymore through it though (you can still replicate through it's pawb which does exist on the clients)

past totem Apr 28, 2017, 8:49 AM

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Replication is totally not working in my game?

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Nothing is replicating, and it's on always replicate

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@ me pls if you know something

dusty sleet Apr 28, 2017, 8:54 AM

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@past totem You won't get help with a question like that. Start small... pick one thing you want to replicate in the game and make it work at a very basic level. if it doesnt work, post your code for that simple thing and someone will help you fix it. it will let you better understand how to make it work for all the other aspects of the game. takes some trial and error to get used to it. "nothing works in my game, let me know if you know why" ... isn't helpful to get help

past totem Apr 28, 2017, 8:55 AM

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Hmm yea I guess xD sec

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When one player spawns an actor, any other player doesnt see this actor and can walk in it and stuff

gleaming vector Apr 28, 2017, 8:58 AM

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is player 2 in the server?

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start with the obvious

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are you running in multiplayer?

past totem Apr 28, 2017, 8:58 AM

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player 2 in the server?

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Yes

gleaming vector Apr 28, 2017, 8:58 AM

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are you autojoining in PIE?

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or whatever you are doing to join the server

past totem Apr 28, 2017, 8:59 AM

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http://prntscr.com/f1rv1a Yep autojoining too

Lightshot

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Captured with Lightshot

gleaming vector Apr 28, 2017, 8:59 AM

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k

past totem Apr 28, 2017, 8:59 AM

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The players see each other moving and stuff

gleaming vector Apr 28, 2017, 8:59 AM

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is the actor set to replicate?

past totem Apr 28, 2017, 8:59 AM

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Yep

gleaming vector Apr 28, 2017, 8:59 AM

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blueprint or C++?

past totem Apr 28, 2017, 8:59 AM

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BP

gleaming vector Apr 28, 2017, 8:59 AM

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if C++, did you implement GetLifetimeReplicatedProps?

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uhm

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you mentioned spawning an actor

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are you spawning the actor on the server or the client

past totem Apr 28, 2017, 9:00 AM

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Well I have 2 different actors, one of them is with C++ but also have a child BP

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Hmm I'm just spawning it regularly lol

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No idea what that means

gleaming vector Apr 28, 2017, 9:00 AM

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like, are you doing a keypress -> spawn actor?

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if so, that's just on the client

past totem Apr 28, 2017, 9:00 AM

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http://prntscr.com/f1rvrz

Lightshot

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Captured with Lightshot

gleaming vector Apr 28, 2017, 9:00 AM

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use the "Has Authority" node

past totem Apr 28, 2017, 9:00 AM

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Yep keypress

gleaming vector Apr 28, 2017, 9:00 AM

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ok

past totem Apr 28, 2017, 9:01 AM

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ok sec

gleaming vector Apr 28, 2017, 9:01 AM

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you aren't spawning it on Authority

past totem Apr 28, 2017, 9:01 AM

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It's from a keypress to a custom event

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Change the event to multicasted?

gleaming vector Apr 28, 2017, 9:01 AM

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are you sending an RPC to the server to tell it to spawn the actor?

past totem Apr 28, 2017, 9:01 AM

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oh nv it's already on multicasted

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RPC?

gleaming vector Apr 28, 2017, 9:01 AM

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https://docs.unrealengine.com/latest/INT/Gameplay/Networking/

Networking and Multiplayer

Setting up networked games for multiplayer.

past totem Apr 28, 2017, 9:02 AM

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Like this? http://prntscr.com/f1rw6n

Lightshot

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Captured with Lightshot

gleaming vector Apr 28, 2017, 9:02 AM

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yeah

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basically

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if it doesn't spawn after putting it behind that switch

past totem Apr 28, 2017, 9:02 AM

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I can also change the custom event to run on a sever tho right?

gleaming vector Apr 28, 2017, 9:02 AM

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means you aren't on the server

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probably

past totem Apr 28, 2017, 9:02 AM

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ok I will try that first then

gleaming vector Apr 28, 2017, 9:03 AM

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https://docs.unrealengine.com/latest/INT/Gameplay/Networking/Blueprints/index.html#eventreplication

Multiplayer in Blueprints

The various aspects of multiplayer applied to Blueprints.

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read that

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basically, if you spawn an actor on the client, it only exists on the client

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if you spawn an actor on the server, it exists for all clients (baring some exceptions that you wont hit in BP)

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so, it's likely you are spawning the actor on the client, thus you must send an event to the server to tell it to spawn that actor for everyone

past totem Apr 28, 2017, 9:09 AM

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It doesnt go to the first exec, only to the remote one

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made a custom event that run on the server and now it does work :P

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Thanks :P

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http://prntscr.com/f1s2op

Lightshot

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Captured with Lightshot

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Whats that for?

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It seems like calculations are changing in a server, wtf?
Server:
http://prntscr.com/f1s3n2
Not Server:
http://prntscr.com/f1s3yn

Lightshot

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Captured with Lightshot

Lightshot

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Captured with Lightshot

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#Broken xD

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What could cause that?

ocean mango Apr 28, 2017, 9:34 AM

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I'm having a really strange problem with setting up multiplayer

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I finally dealt with a strange problem that was causing my actors to respawn when someone joined in "had absolutely nothing to do with logic stupidly enough"

And now I'm dealing with trying to figure out what the hell is going on.

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When a server is on it's own I can destroy the actor and respawn it, and repocess it

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however, the moment another player joins and someone dies, the game crashes

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with the only message saying that there was an infinite loop assertion at Collisionhit

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Or rather character death event

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Another thing is that for some stupid reason, the other players are able to see the server move around just fine

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But the server can't see them moving around

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I'm not seeing anything that would trigger an infinite loop

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Oh what the fuck

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I found the error, but I'm not sure what's actually happening

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Oh I see

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No that wasn't it...

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sigh unreal makes this unnecessairly difficult

jolly siren Apr 28, 2017, 11:23 AM

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@rough iron I can replicate through an AI's pawn, but not with COND_OwnerOnly right?

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Is there some way to force replicated properties to resync once it's repossessed?

thin stratus Apr 28, 2017, 11:25 AM

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@ocean mango lemme guarantee you that it's not difficult at all

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At this point you are probably doing something wrong

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And we would need to see your code to help you

mild zodiac Apr 28, 2017, 12:52 PM

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is it possible to create a dedicated server and then somehow execute functions on it, create a gui maybe?

ocean mango Apr 28, 2017, 1:02 PM

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I just trashed the online code, and swapped to Split screen, I've spent a week on this and made no substantial progress

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Turns out that "Replication" doesn't quite mean what it says

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If you have a component that is not a product of "CharacterComponent" then you need to provide the implementation details yourself

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Also, yes. Yes it is possible FTriangle

mild zodiac Apr 28, 2017, 1:09 PM

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@ocean mango do I need to create external app for that or it can be done with ue4?

ocean mango Apr 28, 2017, 1:11 PM

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You can create an external app.
But doing it in UE, I wouldn't know.

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UE lets you make a dedicated server, as far as I am aware, but I know very little about the details

mild zodiac Apr 28, 2017, 1:13 PM

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I know how to create a dedicated server but still haven't figured out how to interact with it

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via sockets maybe?

ocean mango Apr 28, 2017, 1:40 PM

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Pretty much

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If' you have any experience with tcp sockets, it should be familiar here. ISH anyways...