blueprint

[gentle urchin]

This part should be fixed regardless

To be event driven, and dont create a billion widgets

[trim matrix]

Sodrfjhfglksdjfgdklsjfghslkdfjghsdklfjghf

What

All I want to do, is to be able to fucking click on a list view item

[gentle urchin]

Ye

[trim matrix]

And nothing is working

[gentle urchin]

But as i see it

Youre creating new widgets every frame

So even if you hit an item last frame

It wont be there this frame

How this even worked is beyond me

[trim matrix]

Dude this logic has worked amazingly before like yesterday

[gentle urchin]

At the very least

[trim matrix]

It works fine

And the logic is fine

[gentle urchin]

Doesnt mean its golden.

No its not

At the very least

[trim matrix]

IDC I JUST WANT IT TO BE FUNCTIONAL

[gentle urchin]

Do some check

For amount of players

Vs amount of widgets in your array

If they are equal, dont update it.

[trim matrix]

And even if I did press it for only 1 frame - it would STILL play THIS sound https://screenshots.foxy.rip/0Zfs03Dk

But nothing is fucking firing in the first place

Bruh

[gentle urchin]

Would it tho

Im not convinced it would

Just.. add the frickin check 😅

Its a branch

Simple as that

[flat coral]

Foxxy my strat for debugging stuff this frustrating is to GRADUALLY rebuild it from scratch. Start with just a completely basic component and gradually turn it into your list view, checking that it works at each step

[gentle urchin]

Also.

The button

Show me the widget setup.

The widget tree

[trim matrix]

https://screenshots.foxy.rip/8DucNGMS

[gentle urchin]

And visibility there is ofc visible?

[trim matrix]

https://screenshots.foxy.rip/kGY5f6sU

Dont worry the text is hit test invisible

[gentle urchin]

With no event overrides for mouse button down?

[trim matrix]

So that wouldnt do any overriding

[gentle urchin]

The graph aswell ^^

[trim matrix]

This is the entirety of the graph for the PlayerButton widget.

[gentle urchin]

Noice.

[trim matrix]

Thats the data playerbutton btw

[gentle urchin]

Looks fine

[trim matrix]

Wait hold on

Wrong thing

https://screenshots.foxy.rip/08kc0iXW

Thats the DATA_PlayerButton

Just literally has PlayerState and a HelpRequested? Variables

[gentle urchin]

Ye

[trim matrix]

Squize do you mind like VCing or something so I can show you my screen

Because not gonna lie, I have been focusing HARD on this for like 5 hours and I cannot see an issue anywhere

Maybe a fresh pair of eyes would help

[gentle urchin]

Wait wait

Dont you miss a function?

[trim matrix]

What do you mean

Miss a function?

[gentle urchin]

GetListItemObject

In the entry widget

[trim matrix]

Huh

Sorry what

Where would I have that function?

[gentle urchin]

In the.. data?button thingy

With the listviewInterface

[trim matrix]

The data is just a class that holds variables so I can pass through some stuff

[gentle urchin]

Yeah but its the one being pressed, yes?

[novel rock]

I tried setting the camera boom rotation to zero and it didn't help

[trim matrix]

Nope

[brazen merlin]

how about setting it to the control rotation?

[trim matrix]

At least I dont think so

[novel rock]

what is that?

[brazen merlin]

the rotation of the controller

[novel rock]

the player is in the correct orientation

[gentle urchin]

Data playerbutton, the one used to add to the array which are used to set list view entries

[brazen merlin]

i guess the idea is above your head

[gentle urchin]

Or is it just playerbutton..

[trim matrix]

Ok I am so confused now

[gentle urchin]

So am I.

But baby is crying so i cant VC 😂

Nor be at pc

The entry widget you have in your listview

[trim matrix]

FUCK

[gentle urchin]

Has a listview interface

[brazen merlin]

try (BoomProxy is my SpringArm)

[gentle urchin]

Which should have a function for get listview object

[trim matrix]

Uh

[trim matrix]

Idk wtf that means

[gentle urchin]

https://forums.unrealengine.com/t/listview-getting-started-in-bp/123626

[trim matrix]

I have that if it helps

https://screenshots.foxy.rip/Dg0pvMCT

Like I do have that interface

[gentle urchin]

Yes

So you need the function

Override it

[trim matrix]

I do here

Tf

[gentle urchin]

No

Thats not the one

Thats the reciever

Theres a sender aswell

In the function list

Override

[trim matrix]

I am so lost

[gentle urchin]

Atleast, thats where i think it is, rven if its from an interface..

[ocean geyser]

Hey, is leaning in the event graph or the construction script in The first person character?

[novel rock]

like this?

[brazen merlin]

wrong end node

[trim matrix]

Dude

Run through with me

What the fuck do I do

[gentle urchin]

Sleep

[trim matrix]

[gentle urchin]

🤡

[novel rock]

Its not giving me set controller rotation as an option

[trim matrix]

I fucking woke up like 6 hours ago

Not that time of day yet

[gentle urchin]

10 hours after me.. 😴

[brazen merlin]

SetControlRotation first off, and turn off context sensitive

[gentle urchin]

I mean.. i'm trying to walk through it but... there's so many bumps along the way

[trim matrix]

Yeah

I have that function thing btw https://screenshots.foxy.rip/7wqKz8YZ

[novel rock]

found it

[trim matrix]

Hold on @gentle urchin, do you want me to record a video of me in VR demoing it

[gentle urchin]

Sweeet, thats good atleast

[trim matrix]

And showing you what the fuck it looks like and if it is working or not

[gentle urchin]

Sure

[trim matrix]

Alright be right back - will take like 5 ish mins

[novel rock]

yep that worked

why was that so hard to find

it wasn't even an option

[brazen merlin]

because context sensetive. You are in the character bp, so only those relevant nodes come up. SetControlRotation is contextual to controller.

[novel rock]

Thanks Conrad, your a champ 🙂

[trim matrix]

That should give some indication to what the fuck is going wrong 😂

Oh its still uploading

@gentle urchin

There you go - that should give a slight indication into what is going wrong

[gentle urchin]

Not hovering, not clicking

[trim matrix]

Mhm

[brazen merlin]

another SCP VR?

[trim matrix]

Almost like it is not fucking there

[trim matrix]

No, its Pavlov - a milsim social game

[brazen merlin]

SCPavlov?

[trim matrix]

https://store.steampowered.com/app/555160/Pavlov_VR/

Steam

Pavlov VR

Pavlov vr is a multiplayer shooter in VR with heavy focus on community. Set in both modern and WWII era's, you can choose a variety of ways to play the game how you want it.FeaturesCommunity hosted dedicated servers.Quick-starting developer hosted lobby system.Search And Destroy, Deathmatch, King of the Hill, and Gun Game game modes.Multi-crew r...

Price

$24.99

Recommendations

26653

▶ Play video

[brazen merlin]

lol i know the game

[trim matrix]

Lmao alr

[gentle urchin]

And this was working yesterday

[trim matrix]

Yuh

You can see it is not an issue with my interactor, widget or anything

[gentle urchin]

Well

[trim matrix]

It is SOMETHING to do with the list view

[gentle urchin]

I sort of agree

Yes, widgets are working,

And the interaction is working

But something with the list and or button is not

Or how the interaction happens

What did you change since yesterday anyways?

[trim matrix]

I added the logic which makes the button blue if any player requests an admin

[gentle urchin]

What logic is that

[trim matrix]

Uh a lot

[gentle urchin]

Sounds related

[trim matrix]

One sec

[gentle urchin]

Very related

[trim matrix]

Ok so first - I added a new empty class (DATA_PlayerButton) with PlayerState and HelpRequested?

[sage heron]

How would you create a grand strategy game with borders and counties/duchies? Trying to find something that I can combine with pre existing real life shapefiles/vector maps

[trim matrix]

Then I adjusted my Event On List Item Object Set

In the playerbutton

[gentle urchin]

This sounds like 97% related

And as cause of it..

[trim matrix]

Then I changed this part

And then uh

Thats it I think

Oh no accomodated this to it

So it actually passes the player state and help requested

[gentle urchin]

But... what

[trim matrix]

Thats it

[gentle urchin]

Set list items..

Is this how the original list is made?

[trim matrix]

Before I used the new blue button logic, I believe (I think I can remember) these not existing: https://screenshots.foxy.rip/IBX1M2Fq

[gentle urchin]

Listview items set directly to players?

[trim matrix]

No

Oh idk how I had it

It was a lot simpler than this photo tho

[trim matrix]

(this one)

[blissful cloud]

Hi. I want to implement the character shake effect. and that too effectively replicated. Any resource on how can I do that.

[gentle urchin]

Id backtrack and do it step ny step to see what fails..

I'd still argue updating on tick is close to insanity, but that'll be up to you

[trim matrix]

OH SHIT

FOUND THE OG

https://cdn.discordapp.com/attachments/221798862938046464/927914650891321374/unknown.png

Looked like that

Thats an old screenshot

https://cdn.discordapp.com/attachments/221798862938046464/927914700681912370/unknown.png

Thats what it looked like in the buton

[gentle urchin]

Exactly

Try it like that again

[trim matrix]

Alrighty

Will make a backup of this shit mess tho before I "revert" back

Brb while I do this

[gentle urchin]

Just keep the current method in a function or commented but unconnected

[trim matrix]

Nah I just backed up the folder

Right, brb

[gentle urchin]

😅

[crystal mural]

Hi all!

Is this node funky in 4.27.2?

[gentle urchin]

Funky how

[brazen merlin]

cant imagine why

[gentle urchin]

Been fine since beginning of times

[crystal mural]

It's not printing what I'm giving it though. This looks right hey?

[brazen merlin]

try getting from the var

[crystal mural]

LOL OK let's check.

[brazen merlin]

its a matter of milliseconds to make my advice concise when i see that your typing

[gentle urchin]

Such sleight of hand

[brazen merlin]

thats what you get for trying to be so thorough

[brazen merlin]

legerdemain 🙂

danke

[crystal mural]

Why use many word few word do trick.

[brazen merlin]

but still readable..

[gentle urchin]

Why many, few ok

[crystal mural]

LOL thanks guys! It must have been getting a value from somewhere in between calculations. It matches now. It didn't do this in the last version.

[gentle urchin]

Fixed. One word.

[crystal mural]

I thought my code was wrong for the last week!!

Technically ja.

[brazen merlin]

i thank dean for the knowledge on such discrepancies

[crystal mural]

I decided to spam print the values so I could see what was going on. Lead me here not 2 mins later. HAHA!!

Thanks everyone.

Thanks, I will. I just trusted that what I was seeing was what was actually happening.

Oh yes I've made that mistake!

I'm sure there's a joke somewhere about a VFX artist walking into a coding bar and slipping on spaghetti.

[icy dragon]

There's no tam-tam, inaccurate. 0.25/10

[gentle urchin]

Damn thats harsh

[zealous fog]

What does this mean?

[zenith trout]

onother blueprint for is coliding than an event?

?

[trim matrix]

Fuck it, going back to an old version and just gona try and add stuff i did recently @gentle urchin

😂

[gentle urchin]

Soo

It didnt work?

[trim matrix]

Nah

[gentle urchin]

Or it did?

Ouf

[zenith trout]

is there another way to check collision than an event?

[trim matrix]

Reverted all last night stuff, did shit all squize

Thanks anyway 🥲

[zealous fog]

Ah I see (altho in this case wouldnt you get an error because of a null reference when you play?)

[gentle urchin]

Displayname is also safe for nullptr i think

Just doesnt print anything

Wasnt there some warning ealier when you crossed between exec paths?

Or was it just what people said... cant recall

[winter kettle]

the only way to reach the Exit pin of a Gate node is through the Enter node while the gate is open right?

[gentle urchin]

Ye

[winter kettle]

I thought functions could have a output pin of type Exec

[odd ember]

they cant

[winter kettle]

I have multiple gate nodes that I need to open at the end of some code, instead of doing an event for each gate, and calling each of those events at the end of the code, what is the alternative 🤦

[zenith trout]

what is wrong in here

?

[pseudo narwhal]

You need to attach a node to the Cast one, try a Get Player pawn

[zenith trout]

it still doesnt destroy it

[pseudo narwhal]

You need to have that cast node in between the other nodes, nothing is triggering it

[winter kettle]

I needed a delegate

[zenith trout]

huh

what is wrong now

[pseudo narwhal]

You have to put the Get Player pawn in the Cast node

that

[zenith trout]

lol thx im kinda new with unreal sry

[pseudo narwhal]

You can always search for the node in google, that will bring you lots of answered questions regarding the problem

[zenith trout]

uh it still does not destroy me

[pseudo narwhal]

Set an Event for that, like pressing a key or entering a trigger box

You should watch a tutorial on youtube on how to destroy actor

Its better than joining nodes without really knowing what you are doing, you'll get used to it pretty soon

[novel rock]

"Hypothetically" how do i get the spawned player on start?

[zenith trout]

this does not work @pseudo narwhal

[pseudo narwhal]

Check out this https://www.youtube.com/watch?v=l-RseXi4LyM&pp=ugMICgJlcxABGAE%3D

Try to replicate it, and then apply it to your project

[odd ember]

better to teach them about blueprint communication

[zenith trout]

still....

[odd ember]

https://www.youtube.com/watch?v=EM_HYqQdToE watch this

[zenith trout]

i will but could you please tell me what is wrong?

?

[icy dragon]

What are you trying to do with this?

[zenith trout]

to destroy the player

[zenith trout]

.

[odd ember]

no because it's more than just one line of text

[icy dragon]

I need more context.

[odd ember]

it's a way of thinking that you need to integrate for doing programming

[zenith trout]

if i prees F i should be destroyed

[icy dragon]

So press F to suicide the character?

[maiden wadi]

KEELIT

[icy dragon]

As opposed to paying respect?

[flat coral]

It's great because you can just rapid tap it again to pay respects

DAMMIT you were slightly faster 😛

[icy dragon]

Pay Respect Any% WR

[zenith trout]

yes

but idk what to do and why it is not working

[maiden wadi]

First guess is that you've put your input in a class that doesn't have it enabled. The second would be that your pawn is not a ThirdPersonCharacter.

[smoky marsh]

Well you gotta hook up F to suicide your character first

[maiden wadi]

Also. The cast is pointless.

[smoky marsh]

CE linked the basics for blueprint communication, I suggest looking through the whole thing

Then figuring out how actors in a world interact

[rigid fractal]

guys, im trying to change the resolution according to the option the player has chosen, it works even in windowed mode, it decreases and increases the window width, but in full screen mode nothing happens, it was supposed to be blurry if i selected one resolution lower than the monitor
this is my bp:

[gentle urchin]

Atleast commandline works

[rigid fractal]

i will try

[timid rune]

I have a blueprint that works properly when I play in the viewport, but not when I launch the game. Does anyone know why this might be happening? Also I don't know if this helps or not but it involves 2 actors overlapping.

[smoky marsh]

Any more details?

[timid rune]

There is an event dispatcher being bound and unbound

[icy dragon]

That's a weird mechanic, but that depends on your game's definition of being freaking dead.

Because often in games, being dead is just another state an entity can get into. Not actually wiping from existence

[gentle urchin]

To be clear: destroy actor wipes it from existence.

Which leaves the controller in an awkward state with no pawn. Poor controller

[trim matrix]

Can we use AnimSequence/Blendspace variable in anim graph ?

[icy dragon]

#animation

[trim matrix]

?

This is bp stuff

but k

and #animation is kinda dead

[odd ember]

bUt iT's tHe SaMe gRaPh

[timid rune]

@smoky marshI found something out: for some reason a component only gets destroyed when playing in the viewport but not when I launch the game.

[zenith trout]

can you reset an object? for example a trap`?

[gentle urchin]

You can do mostly anything

[timid rune]

I also tried setting the relative location and that didnt work

[gentle urchin]

Atleast the perseption of it

[novel rock]

I don't like his up beet attitude.

[timid rune]

It seems that while the game is launched the component wont move in any way

[zenith trout]

How

[pseudo narwhal]

I made this for panning my camera, but I want to set a limit for its movement, I tried including a Clamp (Float) node but its not working, any ideas? 😕

[odd ember]

whose?

[timid rune]

I cant set the relative location, destroy it. Move component to doesnt work

[novel rock]

Blueprint Communications | Live Training | Unreal Engine video I'm watching.

[odd ember]

suffer through it

[zenith trout]

how can you reset a blueprint ?for example a trap`?

[odd ember]

it's worth it

[maiden wadi]

Did you mean kind and professional or ➕ 🪲 ? Not sure what "up beet" is.

[novel rock]

no one is that happy using blueprints.

[odd ember]

🤣

[timid rune]

@zenith troutI would just try to build it in a way that resets certain parts when an event is called

[odd ember]

I tend to agree

[timid rune]

or despawning and spawning a new one if you cant do that

[novel rock]

I like tutorials where the person shoeing me how to use blueprints swears at least twice.

[maiden wadi]

You want professional developers to swear on youtube? O.o

[odd ember]

you should hear my boss

[maiden wadi]

I'm exceptionally profane myself, but definitely would not be if making developer tutorials. 😄

[odd ember]

I would at the very least mutter neath my breath

[high ocean]

I'm making some structs now for a collectible system. I want to have Something like
BookTitle
-> Chapter 1
-> Verse 1
-> Verse 2
-> Verse n
-> Chapter 2
-> Verse 1
-> Verse 2
-> Verse n
-> Chapter n
-> Verse 1
-> Verse 2
-> Verse n
BookTitle2 [...]
What kind of variables would you recommend? (Book & Chapter = name/string?) The verses are going to be of type text since they will basically be paragraphs.
I want all of these in data tables to be able to create all widgets from them.
Any suggestions? Maybe the whole system is poorly thought of.

[maiden wadi]

GameplayTags

[gentle urchin]

GameplayTag

[high ocean]

wow, that was fast...uhm... what now 😭 never used them before 😐

[maiden wadi]

Chapter1.Verse1
Chapter1.Verse2
Chapter1.Verse3
Chapter2.Verse1
Chapter2.Verse2
etc

[high ocean]

i know they exist, but have no idea on how to actually profit from them

[gentle urchin]

they're easy to use, can be stuffed in containers, and has a bunch of check functions

[high ocean]

😮

[gentle urchin]

In this case you can even query entire chapters 😄

[high ocean]

that's like auto-making my sistem lol

[gentle urchin]

Atleast, I think that can be done

[maiden wadi]

It can.

[gentle urchin]

not that versed with it myself yet, but i love it so far

[high ocean]

ok, i'll look into them, and see how I might use them. I also need to bind them to droppable/findable loot

[gentle urchin]

As a tag in anyActor 😄

easily droppable

[high ocean]

my whole game is procedural

[gentle urchin]

collectible

if you want "several" items to exist in one you can use the container, again 😄

basicly a stack of tags

or a .. .container... of tags

[flat coral]

Wait am I a dumbshit for NOT using gameplay tags for my dialog system? I've just got like a struct with an array right now

[gentle urchin]

This looks familiar

[high ocean]

@flat coral🤣 that's copy-paste my conv system from 3 years back - how deep did u make it go? mine was only 4

lost myself in my own convolution of structs lol

and selectors

[gentle urchin]

I had an awesome system for it, but it got convoluted in the datatable 😄

the pointers to new id's became... messy

no clear visual connection between row 1 which pointed to row 17, row 41 and row 123

so in my latest endeavor I found a plugin. good times

https://forums.unrealengine.com/t/dialogue-nodes-open-source-c-4-20-4-22/120041

some prefer the more generic flowgraph one

[high ocean]

Ok, lemme see if i get this straight:
I need a struct for my DB:

1. GameplayTag (for classification)
2. Text (the actual "verse")
   and basically that's it? I just run my drop chance rolls on the whole table if this item type is selected? Am I thinking clearly? That simple? 😮

[gentle urchin]

GameplayTag is rowname

[flat coral]

This can grow to have SOME metadata on dialog steps but I think if I need wildcards it will crumble

[high ocean]

yea, still want to keep it (double it) in case i need it, I found myself needing that info in the past.

[gentle urchin]

In some cases it can be handy to have a pointer back to the row i guess ^^

[flat coral]

Dialogue has no limit on how long it can go or how many branches it can have, but there's max 4 options per step for ui reasons

[high ocean]

meh, mine had a depth limit too

and 4 options too

[flat coral]

I guess in practice my depth limit is however long an array can be in ue

I'm not really worried though, my game isn't really suited for long conversations

[high ocean]

so, (Q->A = 1). Had 4 of these. But I was more of a beginner then then I am now so 🤷‍♂️ it did its job 😄

[gentle urchin]

my db ended like this

[high ocean]

but...how would I create the widget structure from gtags? break them into strings or smt?

[gentle urchin]

felt safer with row handles for the pointers atleast

[gentle urchin]

the tag would be split by category and a .

Book1.Chapter1.Verse1

[high ocean]

Amazing! so glad I asked u guys before headbutting into this. Would've never thought of it! Thanks! I'll go learn some GT then 🥳

[gentle urchin]

Worst part of it was the 'triggers'. felt like a good idea at the time, but im not amazed by it

[rigid fractal]

really worked, another question here
can you tell me if there is any command that changes the texture of objects too?

[maiden wadi]

@high oceanOn a side note. If you have any C++ ability, one function for GameplayTags I find rather invaluable(Specially when dealing with Datatables), would solve your issue of needing to double the tag in the table. GameplayTags has a static function to get them from an FName. You can do FGameplayTag::RequestGameplayTag(FNameValueHere) Cause then the table's names would serve as Tags as well.

Oddly it's not BP exposed, C++ only, would need your own library static for it.

[high ocean]

@maiden wadiAlas, I have no cpp knowledge and it'll convert my whole project to cpp. If I pack like this, I can track my problems (so far I did). If it's converted, i'm not so sure anymore... What should I call it... I'm scared of cpp I think 😮‍💨

But after I finish the EA for this game, I want to take a month to get the basics of cpp so that I can feel a little confident and at least expose useful stuff to bps.

[maiden wadi]

Haha. I feel you. Was there myself sometime a little over a year ago.

[odd ember]

I mean it's not like it'll convert everything to cpp

cpp influence creeps in under the skin

first it's just a library with some functions

then it's a base class for BP

then before you know it half your project is in cpp

you're out there making subsystems

[high ocean]

srsly? 😮 But ur a programmer right? So u had the basics - or?

[odd ember]

no no, he was a pro gamer

😎

[maiden wadi]

Not really. Before that I had a little over a year and a half in blueprints. Few months of Lua messing with WoW addons a decade ago.

[high ocean]

@maiden wadi🤔 So unless I'm way dumber than you (ofc if ur not some genius) it's not THAT scary... This gives me hope actually 😄

[maiden wadi]

I think I first picked up UE right at the end of 4.24 if memory serves.

[odd ember]

it really isn't. UE4's cpp helps you out quite a bit

[maiden wadi]

It manages all of the hard stuff for you if you just follow a few simple rules.

[high ocean]

so, even if you type in 10x as much and can't instantly test what you did, it's still "faster"?

[odd ember]

it's not just that it's faster

[smoky marsh]

Length =/= performance drop necessarily

[odd ember]

it opens up avenues that aren't available otherwise

like subsystems for instance are a godsend

[smoky marsh]

Don't be afraid of long code

[maiden wadi]

Honestly, even just being able to override the default framework is godly.

[high ocean]

@maiden wadiwhere did u start?

[maiden wadi]

Like 95% of the framework is virtual and not even BP exposed. There's a ton of things you can do.

[high ocean]

maybe it would work for me too

[flat coral]

See THIS is where I fell apart because I actually knew C++ from back in university but then trying to get into coding it for UE4 everything was totally different

[maiden wadi]

static library functions.

[odd ember]

they made it feel more like modern programming languages

because standard cpp is 😩

[flat coral]

I could do an interview in like 6 programming languages but UE4's cpp made me go to blueprints right away

[high ocean]

so...wait.... should I NOT learn standard cpp? I was thinking of taking a course of cpp unrelated to ue.... wtf?!

u know, learn the basics from scratch

[odd ember]

there are some crossover, but like you don't need any of the standard libraries

[flat coral]

I'd learn C, then learn UE CPP

[odd ember]

you still need to manage pointers and addresses to some extent, but nowhere near how much you need it in cpp standard

and memory management is automatic for UPROPs

[high ocean]

and i've seen in some cpp stream a long time ago that references aren't "a thing" in cpp like they are in bps? And it doesn't throw all of them into the memory?

[odd ember]

they are

references in BP are pointers in cpp

[high ocean]

so, it's basically the same then

in this regard

[odd ember]

it's just a different way of handling the data, but what you get out of it is the same

[flat coral]

Learning C will teach you all the tricky memory and pointer stuff. IMO you don't need to learn the parts of standard C++ that are in neither C nor UE C++

[maiden wadi]

There are fundamentals, and then there's basic C++ and then Unreal wrapped C++.

Fundamentals cannot be skipped. This is stuff like the difference between a float and integer. The different between an unsigned integer(uint8) and an signed integer(int32). Knowing what a pointer is and the difference between a pointer and passing a value by reference.

Basic C++ is knowing what an std::vector is. Hint, it's not a location. std::vector is an array. And knowing this is entirely useless inside of Unreal.

[odd ember]

it's been ages since I did C and I remember nothing of the memory management, yet I've done some decently high tech stuff in UE4's cpp

subsystem for saves, subsystem for AI

[zealous moth]

@maiden wadi what the hell is a uint????

[high ocean]

well those "basics" I have an understanding of - kind of "know" them from working in bps

[odd ember]

unsigned int

basically without the sign, so it can only ever be positive

[flat coral]

I think every coder should learn C, but I don't think they need to like be proficient in it. The idea is just that learning C teaches you what every other language is doing in the background for you

[zealous moth]

@odd ember oh cool! Whats that?

[maiden wadi]

int8 is -128 to 128. uint8 is 0-256

[odd ember]

but you get twice the range for the same memory, but only positive range

[high ocean]

y not just use integer? wtf

[twilit gull]

if actor made on listening server is being replicated and made on client not, where is probably mistake?

[maiden wadi]

Same memory space, larger numbers.

uint8 and int8 are both bytes.

[high ocean]

oh

[odd ember]

integers are 32 bit, way to much

[zealous moth]

Wait int has a max range of 128? I thought it was 256

[flat coral]

-128 to 128 is a range of 256 🙂

[zealous moth]

Gosh.... refactoring tiem

[odd ember]

like when's the last time you needed 65535 different combinations of anything?

[zealous moth]

I got 200 missiles

As int

[odd ember]

int's max range is -65534 to 65535

[flat coral]

*laughs in 3am conference calls because a team used a sequential int for an ID and ran out which broke our entire system*

[odd ember]

2^32, 32 bits

[zealous moth]

Oh thank god

65k missiles it is

Pew pew

[fervent temple]

trying to make a vigilante asset tank driveable. when i hit play this is what happens

just completely spases out

[supple dome]

32bits is like 4 billion

[smoky marsh]

Looks like a meme image

[odd ember]

you're right

[zealous moth]

Where tank???

[odd ember]

I failed

[fervent temple]

the blurry thing lol

[odd ember]

which of them?!

[supple dome]

i saw a cat at first

[odd ember]

I thought it was an impressionist painting

like a shader

shoutouts to kuwahara

[fervent temple]

left thing

[flat coral]

I wonder if somehow your motion blur settings are messed up

[odd ember]

16 bit is 65535

[fervent temple]

no it spawns in and tries to rip itself apart

its not supposed to move yet

[flat coral]

these are like photos of bigfoot lol

[supple dome]

is it a skeletal mesh?

[flat coral]

I bet it's colliding with itself or the ground

[zealous moth]

@fervent temple sounds like a collider issue

[fervent temple]

yeah

[fervent temple]

ah ok

its not my asset

[odd ember]

try to drop it from up high

[fervent temple]

its some super advanced vigilante one that i saw

[odd ember]

and see if it lands ok

[zealous moth]

If you raise t above ground does it fix it?

[flat coral]

Or just disable gravity

[fervent temple]

ok yeah its fine when gravity gone

[odd ember]

so it is a collision issue

I would ask in #legacy-physics

[fervent temple]

thx guys!

[zealous moth]

@fervent temple disable the collision for the mesh and use a collider as your collider

[flat coral]

I'd also try just spawning it slightly above ground and letting it drop onto ground, and see how it performs like that

[trim matrix]

does anyone know if AnimBP live recompilation is still in experimental ?

i dont find the setting anymore 🤔

[odd ember]

have you asked in #animation ?

[trim matrix]

no since its not a setting in the anim graph 🤡

but in the editor itself

[charred grove]

Hello guys

I need someone to help me mesh two marketplace systems together

Rpg inv and combat system

I have a problem on connecting wrapons from inv get triggered with the vombat system attacks

Idon really knoe where the problem is i just cant put them together

If anyone is interesting in giving me a hand please let me know

[novel rock]

https://answers.unrealengine.com/ Unreal help page is down.
how do i cast a ray from a camera to select an actor.

[odd ember]

trace from camera.location to camera.location + 10000 * camera.forwardvector, get hit result

[novel rock]

thanks

how do i find actor or character who spanned in world, using blueprints.

[odd ember]

spanned?

[spring nebula]

How do I get the "Parent: Tick" node?

Found it. Right click tick node -> Add call to parent function

Are events more efficient than Functions in BP?

[true marsh]

Is there a way to force base aim rotation to replicate? A few sources I'm seeing say it is automatically replicated but my aim offset only works on the controlled client

[zealous moth]

@spring nebula no they serve different purposes. Events have no outputs but can use timelines and timings.
Functiins can input and output but cannot use timings.

@true marsh i would ask in the replication channel. It is possible but i forget how

[spring nebula]

I know that much. I was just wondering if there was performance difference. I was watching this tutorial. Is using delay with a very short delay time better than using the tick function as this video suggests? https://youtu.be/jJbYr7eqd4I?t=810 13:30 is the timestamp.

[zealous moth]

@spring nebula delay is best used for static logics such as damage invulnerabilities and such. Otherwise you should use a timer when possible and finally tick if not expensive.
Do note that many folks have a misconception with tick being bad. It is fine as long as you dont overdo it. Like dont do 10 nested loops per frame.

@spring nebula raw c++ will always be better than bp but the magitude also matters. Do you want to spend an hour coding and testing for 0.001s improvement? Not worth it.

[spring nebula]

So to answer my question, there's no real reason to initiate an event loop with a delay small enough that it's called every tick over just using the tick event. Thanks. I appreciate it.

[zealous moth]

@spring nebula and if it doesnt need o ve done every single frame: use a timer and loop it.

To be done**

[bright harbor]

i'm probably being stupid, but how would one move the camera on a boom arm behind the player and raise it a bit, almost like a camera position/rotation reset event

nvm i got it

[brazen merlin]

lol, swear ive answered this for two other people for the same exact thing recently

[bright harbor]

i sent it, then i googled for the solution and found a tutorial for it 💀

[brazen merlin]

SetControlRotation 🙂

sounds like you found a fix though, hope its not a hulking bandage

[sour ridge]

Anyone know with blueprints how I press a button and it either open discord link or copy to clipboard text (which is the discord link)

[timber berry]

This picture is from Unreal engine 4 but in Unreal engine 5 there is no vector * int, what changed??? How can I get that in unreal engine 5

[faint pasture]

Have you tried just plugging an int into a vector x float?

[timber berry]

no there is no vector x float

[faint pasture]

Are you dragging off a float or vector pin? I highly doubt ue5 is missing vector x float

[supple dome]

you can right click and convert

the pins

[rain egret]

Question,
I have walls, their normals point in different directions, there are ones that point inwards and there are ones that point outwards.
I always want to calculate an artificial normal that points outwards, depending on the linetrace

How can I do that? Kinda late and my head steams

[tawdry surge]

@timber berry ue5 doesn't have type specific math nodes. Its just a multiply node

[brazen merlin]

facing direction of the wall is needed? because the wall has things with varying normals?

[rain egret]

Lemme make a quick video that should explain it

the pannel with a arrow shows the normals direction and how it changes

id like the arrow to always face inwards,

[brazen merlin]

ahhh, i dont know the math, by i think you might have a better result by aiming with bias to player position

[rain egret]

thats what the linetrace is for, it gives me a start and end point

[brazen merlin]

what about have it bias towards the root transform of the actor these are all attached to?

[rain egret]

i thought of that as well, however this would have to work for cases where, lets say you place a helm inside the ship, and the floor you are placing it on just so happens to be below the root of the ship.
wouldnt work properly

[brazen merlin]

mhm

give the player the ability to flip it?

[rain egret]

flipping turning will be added for sure, however players are lazy and i dont expect them to figure out you need to turn it, because if the arrow faces outwards it creates a very ugly mesh

and i dont want to include the arrows in the polished version

[brazen merlin]

thats what i see in most of these kinds of things, and yours is fairly open ended that its hard to account for the number of edge cases

[rain egret]

exactly

like you can make your ship any shape, as long as its with the given amount of freedome the editor gives

[terse elm]

is there an easy way to cast to the current level to get a target point set within the level?

[spark steppe]

no, you can't access level bp from outside

what you might want to do is make an actor which represents your target point, and spawn it in the level

[timber kite]

Guys, does anyone knows, how to make the components of a blueprint instance editable?
I have created a blueprint containing paper grouped sprites as components which are defining my layers for parallax, as i am using orthographic camera.
I can duplicate the blueprint to change the layers but in case i need to make some changes i will have to edit all the layers of all my levels which is verry inconvenient.
Can anyone guide me?

[terse elm]

gotcha yea that was my other option: re: @spark steppe thx

i guess i could also just use spawn points with tags

[storm vigil]

Hi. I would like to make a list of bone names (spine_01, spine_02, spine_03, pelvis, head, neck, etc) and I want to compare it to the break hit result hit bone name so if it is == to one of the list then I would have a logic of a larger damage (branch is true), but if its not included in the list I will have the false as a lower damage. It is easy to == per bone name variable. However, I am not sure how to make a list (list of bone names) using arrays and compare or == it to the hit bone name (not array). The other alternative is making a lot of branch per bone name variable but it involves a lot of bone names. Thank you

[gentle urchin]

you could make a map for it

BoneName as key, float as damage scale

[eternal reef]

Just wondering, wouldnt it be easier to use the physics body?

[brazen merlin]

so clean

lol i forget about find, could do it with array too 🤦

[gentle urchin]

Tmap is faster 😄 I think

and array.. dont ahve a key to it

how'd you compare it

a struct?

2 arrays?

[brazen merlin]

wait, is there two values being checked?

i was just thinking a name array with a find return into the branch

@storm vigil lol no wait

advice removed

do Squizes lol

not sure if bone maps with damage float, but yeah

use Find

basically

[storm vigil]

Hi. thanks for the advices. I think the output of the find float I can place on the damage input float i have in the return float?

hehe

[gentle urchin]

You'd probably want to multiply them

[brazen merlin]

its bone | damage, so if Spine_01 is hit, this is the damage, etc.

[gentle urchin]

damage multiplier *

[brazen merlin]

i dont think thats what is wanted

ah

[gentle urchin]

Anything else would be.... interesting

'sadly' the damage event doesnt directly tell you which bone was hit

[brazen merlin]

that's where you make your own damage bpi

[gentle urchin]

Or ramp it up pre apply damage

some trace is probably happening, pick it up and at it there

or custom damage type, which includes bone name hit

Custom is probably easier ye

😄

[brazen merlin]

still yet to mess with damagetype clases

[gentle urchin]

same, havnt touched them yet

[brazen merlin]

tried them, but i wanted a certain damage formula and ended up doing that elsewhere before damage happens

[gentle urchin]

sounds about right yes 😛

[trim matrix]

i have a very generic issue i was wondering if anyone could help? basically everytime when i rotate my character using the Mouse the camera rotation after 2 seconds will snap back to its original rotation

after reviewing my logic for rotating the camera i see no logic at fault here is there a setting im forgetting to check?

[storm vigil]

Hi. I think I did not need to use the find for the map (name/float) variable but due to your recommendation it led me to using the variable CONTAINS for the array of the bone names and compare it with the hit bone name. I connected it to my branch with two separate return nodes, one for the normal damage and the other I have logic for reducing damage. Thanks 🙂

[eternal reef]

Do you have any custom code that could influence your camera rotation, if so could you share it?

[onyx token]

i have problems with vectors

i'm calling a forward vector based on my character.

why does this happen?
Why does the red needle not rotate with the character, but goes to 90°, and then back, and then to -90° and back?

why does the vector only cover half the circle? not the whole circle?

[trim matrix]

this is all im doing in the controller for rotation (it was alot more than just this but after stripping it down issue still persists)

i feel like there is a setting thats causing this i could be wrong but ill keep looking

[trim matrix]

now that im double checking i seem to have 2 cameras in one of my characters one camera reserved for special events and the other camera being the main one

[eternal reef]

Huh, the rotation might be derived from the one not moving?

[trim matrix]

possibly is there a way to set what camera gets considered for rotation

[eternal reef]

Good question.. I guess you should definetely be able to define that somewhere but no clue where

[trim matrix]

auto activate is on both of them i guess i could untick this for whatever one is not being used since i manually activate it anyway

[gentle urchin]

You want it to go 360?

[onyx token]

yeah, i want it to cover the whole circle...

but it only covers half

[gentle urchin]

what rotator are you using

[onyx token]

i'm just getting the velocity and taking the Y rotation

[gentle urchin]

why velocity ?

are you showing the magnitude aswell

[onyx token]

well it doesn't matter whether i'm taking the character rotation or the velocity

both vectors only cover half the circle

wait actually- nvm

i have to take the velocity

because i've set my character movement to not rotate based on my WASD

so i can strafe

[gentle urchin]

what was the logic

[onyx token]

logic?

[gentle urchin]

in that

[onyx token]

oh you mean what i'm trying to do?

[gentle urchin]

No..

[onyx token]

I'm trying to make my characters head always face the direction of the camera, but have the feet rotate, while the capsule component also faces the camera

[gentle urchin]

so there's a target rotation

or a move rotation/direction

and a look rotation/direction

[onyx token]

i have the velocity of my character
and i have the camera rotation (= character rotation)

and i'm rotating my character mesh based on the velocity

[gentle urchin]

camera forward is look direction , while key input is move direction

what happens when the move direction breaks the law of physics?

do the pawn turn then?

or to they swap to backwards?

[onyx token]

WAIT

hang on

i'm dumb

i'm supposed to use this

not just break the vector

[gentle urchin]

(Y)

[pseudo narwhal]

Do you know how I can limit my panning camera? I can drag it to the infinity. Tried the Clamp nodes but didnt work 😕

[gentle urchin]

panning camera?

[pseudo narwhal]

I mean, I created a model viewer similar to sketchfab, so I can rotate over my object an pan X/Y axis

But I'd like to have a limit on the X/Y dragging

[gentle urchin]

what did you try to clamp

[pseudo narwhal]

This is my BP

[gentle urchin]

aand you tried to clamp what?

[pseudo narwhal]

I set a Clamp node just right after X Pan and Y Pan

[gentle urchin]

How would that work really

think about the values being passed on here

is the output from Pan Axis X the absolute rotation?

[pseudo narwhal]

It worked in the rotating camera section

[gentle urchin]

Walk through it logically

why would it work for the camera but not for the spring arm offset?

[pseudo narwhal]

To be honest I dont really have a clue 😅 , I tried following some tutorials and Im really lost at it

[gentle urchin]

Let me give you a hint

the input coming from the Axis is in the range 0.0 to 1.0 (assuming scale is set to 1 in input settings)

you're also using two different nodes for rotation vs panning

The upper one is not on the screenshot but i bet its not addLocalRotation

[pseudo narwhal]

Thats the rotating part, I adjusted the Clamp to a min/max so it doesnt fully rotate around the object

[gentle urchin]

Which is fine

it's very clear why that would work

not sure what you rmacro clamp is but doesnt matter much

[pseudo narwhal]

But as for the Pan Camera I dont really know what else should I change or add

[gentle urchin]

If you walk through it im sure you will

Whats different between pan and rotation

[pseudo narwhal]

Ive been trying it since wednesday, looking everywhere but Im totally stuck 😦

[gentle urchin]

For your rotation you're checking the current rotation, adding some value to it, and setRotation

while for your pan you're adding offset based on the input

not checking the current location

so there's no way you can clamp it

Think of an example;
Input is 1.0
PanSpeed is 2.0

So 1 * 2 = 2, then *-1 = -2

Then if panning "AddLocalOffset" recieves 0,-2,-2 as the input

which is what you're trying to clamp to -130, -70

[pseudo narwhal]

That -130, -70 its just the rotation limit, not the panning

[gentle urchin]

well i couldnt guess that 😛

Still it ends with the same thing

no matter what you try to clamp here

[pseudo narwhal]

Thats the full BP

[gentle urchin]

there's nothing to clamp

because you're working on the delta vector

the "amount of change" if you'd like

[pseudo narwhal]

So, ignoring the clamp, is there any specific node I can use for just limit my camera movement, instead of moving it infinitely

[gentle urchin]

Clamp.

Clamp is what you want here

that or some boolean check, but it results in the same thing anyway

[pseudo narwhal]

Where should I put it? Before the Make Vector node?

[gentle urchin]

Did you not read or was my explanation that horrible

[pseudo narwhal]

Im just an environmental artist, dont really know a lot about this 😦

[gentle urchin]

xD

Its additive math, im not sure how much there is to know about it really

[pseudo narwhal]

All that BP took me like 7 days

[gentle urchin]

you need to check the Spring Arms current offset

add your input to it (like the rotation),

then clamp

[pseudo narwhal]

There? In the AddLocalOffset ?

[gentle urchin]

you also need to swap the node

to a SetLocalOffset.

Add is additive

internally it adds whatever input comes in to the current offset

[pseudo narwhal]

Cant add a SetLocalOffset , only lets AddLocal or AddWorld

[gentle urchin]

Pretty sure there's a set

[pseudo narwhal]

Even deactivating Context Sensitive

[gentle urchin]

see, there it is

[pseudo narwhal]

Then SetRelativeLocation, thats it

Now all I need is a Clamp node before that? 🤔

[gentle urchin]

Perhaps you get away with clamp vector,

if not just clamp the 2 or 3 floats individually if need be

i'd think doing the vector itself would work fine

[pseudo narwhal]

Oh thanks, Im testing that !

Its starting to work 🙂 , I bit choppy movement but at least is working, thanks

[gentle urchin]

you could interpto if you want to smooth things out

[pseudo narwhal]

I'll try the interpto

[gentle urchin]

requires an extra variable

targetLocation

[pseudo narwhal]

This is working fine, copied your BP, it only pans in X axys though

Guess I have to figure out where to add the Y axys and its done

[gentle urchin]

yeah i didnt have the correct inputs laying around

but the idea is the same for Y

[pseudo narwhal]

Do I have to duplicate that for Y ?

[gentle urchin]

Adding it to the X i assume

[pseudo narwhal]

Let me try

[pseudo narwhal]

Oh I see

Still not working on Y 🤔

[zealous fog]

I have this object reference variable on my enemy base class, but when I place the enemy in the world, I cant seem to change it

[remote meteor]

its in the AI section

try searching for it

the details menu is also arranged based on your variable category

[zealous fog]

Oh wow... sometimes the solutions are so simple hahaha

Thanks man

Been looking for like 15 minutes lmao

[crisp lance]

If you use a delay right after the click, any additional click will be absorbed by the delay.

[remote meteor]

save the timer handle

if timer handle is active

dont shoot

[primal tangle]

hello guys I'm trying to Package my project for android. and it succeeds but I can't open it on my phone it keeps saying "it has stopped"

so I check my log in saved folder and there are a few lines like this : Log file open, 01/08/22 15:46:20 LogWindows: Failed to load 'aqProf.dll' (GetLastError=126) LogWindows: File 'aqProf.dll' does not exist LogWindows: Failed to load 'VtuneApi.dll' (GetLastError=126) LogWindows: File 'VtuneApi.dll' does not exist LogWindows: Failed to load 'VtuneApi32e.dll' (GetLastError=126) LogWindows: File 'VtuneApi32e.dll' does not exist

could these be the problem ?

I found some approaches on the internet like delete intermediate and saved folders and try to open again but these won't disappear

it is the same for all my projects even if it's an empty new one

I think these are why the android apk keeps stopping and jumping out. have any of you come across this b4 ?

It's been a few days since I'm tryna get a clean package that's working but no success..

[remote meteor]

here's one way to do it

[sand bloom]

I have a stupid question but uh what's the name again for the kind of variable that acts similar to an integer but using text/names/words

enum something I think

🤔

so I could make a list of words instead of using numbers

afaik there was a easy way to do this

I guess I can just use a name switch
Edit: turns out i'm dumb and it's not just a variable but something I create as a blueprint thing ignore this

[rain egret]

okay turns out the vectors do point always outwards (blue forward vector), but i am using their up vector (red) to orient things along its surface which causes issues

why cant i just use the forward vector as rotation aaa

[smoky marsh]

would there be any issues with a setup like this since the events run on every frame?

[remote meteor]

it is intended to be used this way

the example in thirdperson template

[smoky marsh]

i more meant that im feeding two on frame events into the same node, im not super familiar with how blueprints would deal with it

[remote meteor]

feeding 2 just means it would call twice

depends on how you insert the World Direction and the other parameters

as long the values are correct, there wouldnt be issues

[smoky marsh]

awesome

thanks!

[coarse lava]

Hi guys! I have a weird problem at hand. There might be an easy fix for it but I can't seem to find it. So...

1. I have chairs in my game. These chairs spawn invisible "sitting pawns" on top of them at the beginning of the game. This works.
2. When I click the chair I will possess the "sitting pawn" and there's a smooth transition between the camera of the actual character and the camera of the "sitting pawn". This works.
3. When sitting, I want to limit the camera angle so that the player can't look around like an owl (or like the girl from the movie Exorcist). This... works and doesn't work at the same time.

So... I've used PlayerCameraManager for the camera-angle-restriction but it only works correctly when the chair is facing a specific direction and fails when the chair is rotated to face any other direction. It feels like the PlayerCameraManager pitch/yaw/roll are based on the actual world and not relative to the situation. How should I work around this problem?

[glossy bane]

How would I go about sending an interface message from one BP to multiple others? Since both INT message node and does implement interface can only take 1 object reference, how would it make sense to call an interface implemented in numerous BP's?

[remote meteor]

you need to calculate the limit based on the camera rotation

since the values are absolute and not relative

[remote meteor]

for each loop and call their interface?

[coarse lava]

So should I get the world rotation of the pawn and then, based on that rotation, do the same thing as I did above but with some math?

[remote meteor]

rotation of the camera

[glossy bane]

so I should have an array of object references and do call the interface everytime I want to call it, is this really better for performance then using an ED?

[coarse lava]

@remote meteor Oh yeah. Ok. I figured doing it with some math-stuff might be the case but I'm not sure how to go forward with it. With my stupid-brain I think I'd have to make the same mouse-restriction for at least four different directions before I'd be starting to "get the picture" of how I'd implement it for every direction.

[remote meteor]

this both means the same thing underlying the blueprint graph

performance is more or less the same, the more important part is the how you would like to structure your object relationship

event dispatcher requires the exact reference to bind them

[glossy bane]

I already have an ED implemented that works as intended but I keep reading everywhere how much better for performance INT's are so ive started to try and replace them

[remote meteor]

in my opinion it doesnt really matter

if you really want the best performance, full cpp is the only way

[glossy bane]

If I understand correctly, if I have something that should happen in 5 different bp's, using the interface to loop trough 5 objects and call the function should logically be better then calling out to all blueprints for it to find the 5 that have a binding?

[remote meteor]

say you have a manager and some spawned objects

lets say event A happens on the manager and you would want to tell your spawned objects to do something

if the relationship is like this, you probably already have the reference of the spawn objects in your manager

you can straight away for loop the stored reference and call the respective functions

this is one way

say you have a pawn and your game state

you want your pawn to listen to some event in your game state, for example, OnCinematicViewChange which the ED belongs to the game state

your game state might not have all the reference of pawn on hand

in this case it makes more sense for the pawn to get the game state

bind the OnCinematicViewChange delegate

and when someone else calls the delegate

your respective pawns can do it such

it really depends on the use case which one is better

for interface, it would be extremely useful for Interact event for example

[candid nest]

Hey i have a static mesh something like this

But when i import it in my actor bp it becomes this can anybody help me

[glossy bane]

I see, it's abit confusing as I'm trying to min-max any performance I can get, in most cases the interface is a simple way of solving it, but in this specific case I'm literally checking if the player should be dead, this check or message has to come from multiple BP's, and it should call events in multiple others

[remote meteor]

check your scale

[glossy bane]

So it just wasnt as straightforward what would be best, because calling the message requires me to have an established reference to all BP's that implement the event

[candid nest]

@remote meteor I didn't touch that

[maiden wadi]

By INTs, do you mean interfaces?

[glossy bane]

yeah sorry blueprint interfaces

[maiden wadi]

I hate youtube so much.

[remote meteor]

as in the player have no more pawns left so the player is dead? for example.
im trying to get your scenario so i can think which one makes more sense

[glossy bane]

essentially player has 1 life, and there are many ways he can die, the different ways he can die happen from numerous blueprints, and there is even more blueprints that each have functions/code they need to execute whenever player does die

so what I've been using is a simply ED call everywhere he should die, and I would bind it everywhere I need something to happen whenever he does die

not sure if it makes sense

[remote meteor]

oh

right i get you

for killing the player

your actors can call an interface to the player pawn to kill it

[glossy bane]

yeah like one is " not rendered for X s", other is has overlapped a mechanic that kills him, etc

[remote meteor]

or you can use apply damage event that is already implemented in all actor and have like a hp system

for after the player is dead

and other other actor to do things

you can make use of the game state

player tells game state im dead

calls a delegate

and other actors binds the player dead delegate on game state to do other stuff

[glossy bane]

I mean I havent been using apply damage and such because there is no health pool, player has 1 life and everything that does "damage" is an instant kill

[glossy bane]

essentially what im doing exept I have this binding in many blueprints that do different things

[remote meteor]

yeah it makes sense to do this

because your game state doesnt need to know every other actors that needs to perform some action after player is dead

[glossy bane]

what was mainly confusing is if going over to an interface with a for loop everytime the player died events should be called is going to be better for performance vs calling and binding

[glossy bane]

Im lowkey confusing as to what the game state is, is it like the game mode?

[remote meteor]

in unreal engine theres like a few key design

game mode

game state

player state

player controller

game instance

to name a few

for each persistent level

you have a game mode and a game state

you can make use of either one as a hub to communicate between all the actors in your level

[glossy bane]

yeah I have set up my own game mode, player controller game instance but I havent touched game state

[remote meteor]

as everyone can access them

as for what is the exact difference, it doesnt matter that much in a single player game

you can use either

but it will matter when it comes to multiplayer

[glossy bane]

I understand so it's another blueprint I can use because it is always consistent troughout a persistent level, like the gamemode

It's 100% singleplayer

[remote meteor]

yes

i will just give you the example

game mode will only exists in the server

but game state exists in both server and client

[glossy bane]

right so your suggesting I make a custom game state, and inside it have the function that should do everything whenever the player dies

instead of having them be spread out trough different bp's

[remote meteor]

for simplicity, you can use game mode

have a delegate OnPlayerDead

when your player dies, calls it

[glossy bane]

a delegate is the custom event that comes off of the ED binding right?

[remote meteor]

these ones

they are called a delegate

[glossy bane]

right but you mean have a dispatcher with a binding that delegates to an event?

inside the gamemode

[remote meteor]

the binding can be placed in your BPs that needs to perform task after the player is dead

game mode is just to hold the delegate

[glossy bane]

so just create the event dispatcher?

I think I understand

[remote meteor]

some other blueprint that needs to do stuff after player death

for example

[glossy bane]

I mean this is essentially how I have it setup now

I perform the call everywhere the player dies, and have the bindings that do stuff in different blueprints

I was just wondering if this can be optimized with an interface instead of the delegate

[remote meteor]

that should be the ideal way to do it

[glossy bane]

I understand thanks

[remote meteor]

to do it the interface way

[crude dew]

Hi, How could i get a text render component to always face the camera please.

[remote meteor]

your bps need to submit themselves to the game state and stored in an array

when things happens

[crude dew]

This is what i have at the moment it kinda works but it rotates the text in world.

[remote meteor]

game mode will call the interfaces

[glossy bane]

but wouldnt that end up being better for performance, because I would cast to each BP that needs to be in the array once in the game state, then I would loop trough them calling the function when player dies

[maiden wadi]

@glossy bane
People who do not understand how the engine actually works are under the impression that Interfaces are the godsend of all because it can help them dereference their project's classes from one another. If you interface everything, nothing has a hard pointer to another class besides the interface. This avoids casting.

The reason why casting is "bad" is because is because of how Unreal handles loading objects. Lets say you have three classes. You have a custom Character, an Apple which inherits from Actor, and a Datatable.

You have three hierarchies.
UObject->Actor->Character->MyCustomCharacter
UObject->Actor->Apple
UObject->Datatable->MyDatatableAsset

When Unreal creates an object it has to have that object's class default object loaded up to copy from. So lets say you have an empty map with nothing but a SpawnActor node on beginplay. You specify Apple's class here. When that map is loading, it also has to load up Apple from hard disk to memory long before that node is ran. Of course UObject and Actor already existed because other things loaded them up as they're used in the things that have to start the map.

Now you add a Datatable pointer to Apple as a blue variable in it's variable list.

The moment you load the map, before Apple's default can be loaded into memory it has to check if Datatable is loaded and load it if it's not.

Now you specify your own Datatable in that pointer.

Now loading the map has to not only load up the tiny Datatable class, but also load the custom datatable you made into memory.

Now you put on Apple's beginplay a GetPlayerCharacter->CastToMyCustomCharacter.

Now when you load the map, before Apple can load it has to make sure that Character class as well as your CustomCharacterClass are both loaded and ready for use in memory before Applie can be instantiated. Note that a custom character does not exist yet, you've only cast to it.

The reason I explained that is because that is how hard pointers work, hard pointers are the usual medium blue variables in BP you use to call functions or interfaces on objects. Now, if you only call an interface function on MyCustomCharacter from the Character pointer instead of casting to MyCustomCharacter, no hard pointer to the type of MyCustomCharacter ever exists you only load the interface instead of the MyCustomCharacter when loading Apple.

This thought process is fine, until you realize that over 85% of a game's memory use has nothing to do with core classes. Memory use is largely taken up by assets. Assets being models(Static and Skeletal Meshes), textures/materials, sounds, etc. If you have a lot of these hard pointed to on a character and you cast to that character, you load ALL of these, which can make it seem like that character is huge when in reality it's just the stuff the character is pointing to. Learning how to handle your hard pointers, and learning how to use SoftObjectPointers will not only make you a better programmer but eliminate the useless need for interfaces.

Also to note about interfaces, calling an interface function in BP is processor speed wise slower than either event dispatchers or casting to and calling a function on an object. So when someone tells you that interfaces are "more performant", what they really mean is that they're too lazy to manage their project.

[crude dew]

The top image is what I have being output at the moment and the bottom image is what I was looking to achieve.

[maiden wadi]

The floating text?

[odd ember]

is this one of those "find 5 differences" images

[maiden wadi]

Only four!

[crude dew]

@maiden wadi Yes 🙂

[maiden wadi]

Three names and size.

[crude dew]

LOL

The top image shows the text "Looking at the player and rotates to keep looking" kinda creepy lol

but i want it to be flat facing camera text render.

i know im using the wrong node with "Look At Rotation" but not sure how i set the rotation to always face camera.

[maiden wadi]

That's semi complex to do well. You can start by using a screen space widget component. That gets costly after a while though when you have a bunch of objects. Also harder to manage the distance display.

[crude dew]

I tried using a screen Space widget but the positioning of the widget goes all weird when the player moves around

[meager spade]

Depending on camera almost all you have to do is set Z rotation of the widget to camera + 180 no?

[odd ember]

a sprite already has the look at functionality

[glossy bane]

Thanks for the great explanation, it makes alot of sense that casting to an actor that has alot of references to other memory-tasking pointers will make it seem worse than it is. I'm just confused as to how you would go about using soft object pointers rather than hard, like I assume a hard pointer is when you cast to an actor and save the object reference to use later (which I do)

[maiden wadi]

Personally, I would probably consider writing a ui manager for it. Let the objects register themselves. and let the manager decide what's shown. But that's also costly in BP because of loops

[meager spade]

I have this to make sure a component is always facing my camera, it's cpp but basically all math

FRotator NewRotation = CameraControllerRef->GetSpringArmRotation();
NewRotation.Pitch = FMath::Abs(NewRotation.Pitch);
NewRotation.Yaw += 180.0f;
NewRotation.Roll = 0.0f;
NotificationManagerComponent->SetWorldRotation(NewRotation);```

[crude dew]

Ok i think i can understand that code.

Not even looked at CPP tbh I tried looking at CPP a few years ago trying to display some images through SDL and omg..... I never went back lol

[meager spade]

If I'm not mistaken Pitch = Y, Yaw = Z and Roll = X

Basically all you should have to do is get your camera rotation, take Z + 180 and take the abs value of Y and set that rotation on your widgetcomponent

[odd ember]

ehh

pitch x, yaw y, roll z on the axes

a good way to remember this is pitch is "nodding". yaw is "shaking your head" and roll is "tilting your head"

[meager spade]

Am I confusing this? Blender Z is not the same as UE Z?

[remote meteor]

its not

[meager spade]

Okay mb then

[remote meteor]

unreal Z faces upwards

[meager spade]

I almost never do rotation stuff in UE so that's why I said I'm not sure 😄

[remote meteor]

so rotating on Z is like "shaking your head"

[crude dew]

This is waht i think the conversion looks like

[meager spade]

Apparently not, since I said the wrong axis'

😂

[crude dew]

on the tick event

[meager spade]

They will help you figure it out, yeah on tick

[odd ember]

the trap with rotations is: the direction you rotate around is different from the rotation direction itself

[meager spade]

Nvm that looks good I think

[crude dew]

Seems to keep it facing the camera but now just seems to "wander" from location XD

This is the master item I created the others from i changed to world display so you can see the widget location

[main lake]

Simple question : Is it possible to have a cube render only the faces visible to the player and not the others ? Like if you have 1 cube next to 1 another cube, the adjacent surfaces between the 2 cubes don't render to not waste resources.
How would I go about that as I don't know how to make each face has its own texture and how to not render a surface

[maiden wadi]

Even simply casting is enough to force that thing to be loaded. You don't have to save the pointer. There is a small difference with Asset types and other classes. Asset types have their own class of course, Static Mesh, Skeletal Mesh, DataTable, Material. These are all classes. But those classes are infinitely tiny. The data they represent is large though. This is why if you have a character class that has a skeletal mesh, and three static meshes. You start off incredibly small. The space it would take in memory is nearly nothing. Now add a single static mesh to that character, and the space it takes goes up by x5 to x500. Multiply this by every single different asset you use. The trick is that once you load an asset though, it's loaded. So having 300 of the same character with the same assets is nothing compared to having even 10 characters with all different assets when it comes to memory management.

For using SoftObjectPtrs, you use them on the assets themselves. You make datatables or maps of soft object pointers to meshes and load them in when they're needed.

[odd ember]

you would do that in your dcc of choice

[main lake]

what's dcc ?

[odd ember]

3d package

like blender

[main lake]

But how would I do that in Blender ?

[odd ember]

ask people in a blender discord

this is #blueprint

[main lake]

But the thing is I need to code that through blueprint too like : if cube 1 is next to cube 2 do not render this face

[odd ember]

then you're looking at the engine renderer

[remote meteor]

then make the cube out of plane

[odd ember]

so #cpp

nah making 6 planes is more costly than making a cube

[main lake]

I know nothing about CPP, so now way to make it blueprint ?

[maiden wadi]

@glossy bane Consider this. You have a skeletal mesh in a character, gun for instance. You have 100 guns in your game. If you specify these as hard pointers, you load all of those meshes into memory at once. Putting them in a datatable of softobjectptrs to skeletal/staticmeshes and only loading them to set them on the skeletal/staticmesh component ensures that only one weapon mesh is loaded per character at a time. Along with that mesh are all of the materials, this also applies to particle effects. It all adds up fast.

[main lake]

Or at least being able to expose those 6 faces in the editor and choose with a boolean if each face renders or not

[odd ember]

there is absolutely no way to do any type of low level operations on the renderer in blueprint

nope

[tawdry surge]

It's not a worthwhile thing to do anyway

[main lake]

why ?

[odd ember]

because you're not going to be better at optimizing the renderer than the people who have made the renderer

don't you think they have thought of this?

[glossy bane]

That makes perfect sense thank you, but I'm still confused as to how soft object pointers are literally defined in BP. If casting results in a hard pointer, is there a different node for soft object pointers? Sorry if this is a dumb question

[odd ember]

nevermind how slow it would be to have any of this done through blueprints

[tawdry surge]

Well nanite is their answer to it, but unless you have thousands of cubes on screen at once the benefits will be slight

[odd ember]

the renderer is one of the most optimized parts of the engine, because it has to deal with everything

[main lake]

I don't know but if they did then I don't need to do it then. I know they did that for each object (as a whole ) to render or not depending on the visibility and the cull distance, but I'm not sure they did that for each face of static mesh, so that's why I'm asking on how to do that.

[odd ember]

can you accept that you are out of your depth here?

[maiden wadi]

@glossy baneYou can do it in the variable selection. Sec. Editor wasn't open.

[main lake]

what does that mean ?

[odd ember]

that you're trying to do things without having an idea of the implications

[glossy bane]

Ok

[main lake]

I'm just trying to do good to have my game optimized, is that a wrong thing to do ? 🤔

[odd ember]

if you don't know how to optimize, yeah

it is

you're going to cause more harm than good

[main lake]

ok then I will have each cube next to each other with all the faces being rendered (if the engine doesn't handle that)

[remote meteor]

ops i forgot to link the targets