blueprint

[final ferry]

tried both overlap and ignore, and same issue

[zealous moth]

make block

[frosty heron]

try block

[final ferry]

i meant overlaop and block

sorry

[zealous moth]

context?

[zealous moth]

something is wrong because your traces go through your character

meaning the hit is ignored

[final ferry]

id like for headshots and stuff so id like to keep it

[gentle urchin]

Got a screen of the trace itself?

[zealous moth]

^

[final ferry]

you mean this?

it got green as well so it should mean the trace is hitting the target

[zealous moth]

??????????????????????????????????????????????

[frosty heron]

Some of them hit the target

[zealous moth]

put a print string

[frosty heron]

can you turn on Show Collision so we can see

[zealous moth]

after your trace

or aim better

lol

[gentle urchin]

I mean the code doing the actual trace

[zealous moth]

yeah it looks like it works but you're a bad shot

[final ferry]

i am hitting tho, the green dont lie

this is wiht show collision

[gentle urchin]

Its only hitting the skel mesh , which is fine

[final ferry]

and idk how to do a print string with just hitting the target, i tried to do that too but it just print whenever i hit anything

[frosty heron]

you can print the hit Component or the Hit Actor

to find out what you are hitting

but it seems hitting already

[zealous moth]

yeah...

[frosty heron]

So what's the logic that don't work?

[zealous moth]

so it's working

[gentle urchin]

Perfect

[final ferry]

this is the damage code

[gentle urchin]

Gj everyone 👏

[zealous moth]

let's wrap it up

[final ferry]

its just the collision thing thats erroring becuase wihtout it the target dies but falls through the floor

let me do a vid

[frosty heron]

When you simulate ragdoll you simulate physics on the skeletal mesh component and detach it from the capsule afaik

[zealous moth]

yes

[frosty heron]

You don't want to do NoCollision

[zealous moth]

yes

[frosty heron]

That will just make your character fall through the floor

[final ferry]

yeah that fixed it, sorry for the trouble for such a silly mistake

[frosty heron]

don't be sorry, good luck next

[final ferry]

the place where the target dies is like wall tho, i cant walk through it

is that anther collision thing i need to take care of?

[frosty heron]

send us visual if possible

ahh I get what you mean

That's because the capsule component still standing there

[frosty heron]

you can change the collision channels on the capsule component to ignore pawn

if you type Show Collision you will see the capsule component of the dead character blocking your way

[final ferry]

yup, should do with camera as well

how stop the momentum when the npc dies tho, i think thats what making it fly back?

[zealous moth]

momentum?

like how far it flies?

[final ferry]

and can i just switch the capsule to no collision after death, i can move it around by walking into it and the ragdoll is jmping around

[final ferry]

you can see from my last vid

[zealous moth]

ah i see

that's the end of my knowledge 😛

[final ferry]

oo thats fine, i might just change it to a death animation when i get my hands on one then

[final ferry]

what about this?

[zealous moth]

you could but what i would do is change the collision channel reaction of pawn to overlap

[final ferry]

i thought about that but id still want the player to not be able to phase through people lol

[zealous moth]

change it on death

it's ragdolling anyways

[frosty heron]

SetCollisionChannel or something like that

[final ferry]

thats what im trying to do but i cant find a node to change it?
never mind, i didn't know why i searched just mesh and not no collision, its 1am and i really should sleep lmao

while i was at this i also figured out it was probably the capsule thats fling the ragdoll around, good to know

[lost hemlock]

So let's just pretend we have a new global disease outbreak and to prevent the spread of death we quarantine people into groups. We know we have a coronavirus like pandemic but we have 30 different evolved mutations. These viruses have gotten better and more resilient and we need to seperate those with known infections into specific wards and isolating individuals with unknown symptoms to prevent contamination, as we're treating them. Why would then the organization of this code fail to work?

For one I can tell that the Item ID im connecting there on the 2nd function at the end isn't gonna be hooked up to anything so it's not gonna work with or reference to any data. Because that's the way that my inventory system is structured.

But then I would have no way to reference any Item name ID connection to the "Add to Stack" function. But I guess that would be easy to fix, as all I need to do is create a Item ID input and then to "==" (equals equals) to whatever Item ID name im getting from

But then the question is, should I be getting the Item ID from the top or from the bottom?

Should I be gettng the Item ID from the "Is Item in Inventory" output or from the "Make S_ItemData" ?

..or from the get class defaults? (probably not that one)

@dawn gazelle

[gentle urchin]

AddToInventory should handle the stack adding

Its the inventorys responsibility

Nobody else should care about how the inventory handles it

Just like others dont care how inventory removes items from it

Adding To Inventory should return a bool for success

WhileLoop are generally not recommended as they remain a pitfall with blocking behaviour causing infinite loops if not done correctly

[lost hemlock]

it already is

[gentle urchin]

Yepp noticed

I just looked at the prior and top part

[lost hemlock]

should I remove my while loop? it never caused infinityception

[gentle urchin]

Still crafting has no business checking for slot and calling internal methods to the inventory component , imo

[gentle urchin]

If you know how it works and the pitfalls, you can ofcourse keep using it

Just saying it generally wouldnt be recommended

Regular loops work just fine for this

[lost hemlock]

which methods speifically?

[lost hemlock]

"still crafting"?

[gentle urchin]

Still, "Crafting" has no.....

I assume thats a widget ?

Holy shit im reading stuff qrong today

Nvm, seems its all in the inventory comp

Also you dont seem to be chevking max_stack amount when adding to existing stack

I assume thats some parameter on the class in the slot

[lost hemlock]

no what?

oh

[lost hemlock]

yeah but somehow that works, it doesnt have any problem calculating amount

[gentle urchin]

This logic makes little sense to me

If you talk through it, does it make sense to you?

Specifically "AddItemToInventory"

[lost hemlock]

it works

but for me what seems weird is this

when i complete this loop it will turn everything zero or will it add zero? as if affecting zero change?

[steady night]

hey guys need help with a formula

[lost hemlock]

that would be delightful. Also there Im now passing array index too

[steady night]

im doing a block thingi, but when the "amount is surpassed or the remaining amount should be put into "damage taken"

[gentle urchin]

Im asking if it makes sense

Not if it works

[steady night]

block 50, damage 75 then 75-50 but the remaining should be put in damage taken

[lost hemlock]

it doesn't

[gentle urchin]

What happens when it overflows?

[gentle urchin]

What happens when you pick up a stack of 20 rocks?

[lost hemlock]

rock has limit to 10 rocks

so it will just create a new slot

[gentle urchin]

So what hapoens when you pick up 10

10 new slots?

1 slot with 10?

1 slot with 1?

[lost hemlock]

everything works as normal

you give stackable amount to rock anything

u want

10<---

is the current

For example

this axe has stack size 1

maybe you destroy it from too much use and then you need to create another one

[frosty heron]

@steady night you can get the remainder

[gentle urchin]

InitialDamage = CurrentDamage;
CurrentDamage -= BlockAmount;
BlockAmount = max(0.0, BlockAmount-InitialDamage)

[lost hemlock]

Rock stack size is actually 20

I wanted to change name to "Stone"

but then for some reason it failed to work

Although I change this name both from the itemData here in this data table

[steady night]

👍👍

[lost hemlock]

and from inside the child blueprint of this item itself as well

[gentle urchin]

Sounds fragile

[lost hemlock]

and i just copypasted the same thing everywhere, same characters, same capitalization etc.

[lost hemlock]

true

but maybe it's not

maybe it's the way im doing it that is wrong

but yeah, it could be engineered better i think

[gentle urchin]

Just move away from regular input field "Name" for ItemID and make it a gameplaytag

Save yourself before its to late

[lost hemlock]

is that a type of variable?

oh you make that from the project settings?

and attach to it a data table?????????

[gentle urchin]

The only annoyance is DT

It doesnt support row name as gameplaytag

So you need some c++ logic to do that

[sick sky]

Just dont us DTs

[frosty heron]

DTs are nice when you need to view a large number of items in a list

[sick sky]

Go DA route for inventory items

[frosty heron]

but yea I will go with DA for Items

[sick sky]

Imagine loading 1k items for one row

[gentle urchin]

I imagine the DT being permanently loaded

So just minimize what that means

[remote meteor]

DT is okay, just make sure stuff like sprite, mesh, other heavy class reference is not hard ref

but yeah, i like DA approach more now that i used them

specially with PDA

[gentle urchin]

Any advice there ? 😂

Still havent used DA

But imagine youd need some DA manager for lookups?

[remote meteor]

i just steal the concept from lyra

[gentle urchin]

I want to use DA but access it in a DT fashion 🤣

[remote meteor]

can consider PDA fashion

asset registry would be the manager for lookup

then it is also immune to directory changes if so happens there is

[frosty heron]

I like how DA can contain functions too

make it easy to initialize stuff

[gentle urchin]

Thats neat

[remote meteor]

if we could dirrectly call functions of structs in bp, i think it would be chaotic 😂

[gentle urchin]

Haha 😆

You kinda can tho, right ?

Not directly but

[remote meteor]

class and struct in cpp doesnt really have too much of a different

[gentle urchin]

Overhead

[frosty heron]

there is overhead 0o?

I thought the only difference is class starts with private:

[remote meteor]

but i think the inventory concept from lyra makes alot of sense
Item Definition has Equip Definition
Equip Definition has AbilitySet to give to Owner

so equipping an item gives you a certain ability

modularity at its best

tho it needs GAS

[frosty heron]

we love GAS

[gentle urchin]

Less if you do a pure c++ class but any unreal class carries overhead

[gentle urchin]

Yeah i lacked skill when i first tried it

But i want to revisit that very soon

Did another struct inventory and i already dislike it

[remote meteor]

the fragment based item definition is also kinda dope

[gentle urchin]

Managed to put together uobject replicated quest system so one step closer

[gentle urchin]

Yes!

[remote meteor]

tho kinda overengineered for reusablity

[gentle urchin]

Hehe oh well. Cant win them all :p

To much flexibility has its own issues

[remote meteor]

one thing is since lyra is kinda old at this point, they didnt do their "Item/EquipDefinitions" in DA, but you can always just change that yourself

[gentle urchin]

People work pretty well with known constraints

[sick sky]

lyra has its own issues

[gentle urchin]

Dont we all 😆

[frosty heron]

Whole day just fixing bugs 🫠

fix one thing, the other break

[chrome pumice]

guys does anyone know how i make folders in variables real fast?

[frosty heron]

If you select the variable you can see category in the detail panel. Fill it with a name of your choice

[fading sentinel]

guys its me again

I'm facing some bugs in my game and could use some help:
Inconsistent Stone Spawning:
I have 4 indices in SpawnPoint fed into a For Each loop to spawn 4 stones per hole.
The spawning is inconsistent across 12 holes, sometimes spawning 1, 2, 3, or 4 stones per hole.

Multiplayer Sync Issue:
In 2-player mode, players see different stone counts in the same hole. For example, Hole 1 on Player 1's screen has 3 stones, but on Player 2's screen, it has 1 stone.

[chrome pumice]

Thanks !!! ❤️

[fading sentinel]

i also noticed when I eject from the player controller (in my editor window), the number of stones changes to match the player 2 window. However, when I reattach to the player controller (main window), the inconsistent stone count appears again.

For example, in the main window, one hole has 4 stones, while in the player 2 window, the same hole has 2 stones. When I eject from the player controller in the main window, the stone count changes to match the player 2 window.

Any ideas on what might be causing this issue?

[polar siren]

hey guys, was just curious, I'm creating my own project in UE with blueprints as a hobby. In my career life I'm web app dev for over 10 years now. I have integrated AI into my workflow kinda quick as it hastens my work quite a bit.

I was wondering, with UE blueprints an AI (such as ChatGPT) can give you hints, tell you what you should/could to do, give you some course, hint you some functions to use, but it is rather slow as this "visual" programming need to be completely done by you versus like C++ code that AI can create and you can actually copy and adjust itself.

Have any of you figured out how to implement or use AI more effectively within project based on UE Blueprints other than just having chat buddy?

Cheers!

Not trying to vent, actually interested in using AI more effectively, if there is a way

[frosty heron]

Chat GPT can't really code for you in C++ for Unreal Engine

you will be lucky if you can compile 10% of the time

[polar siren]

Well, sure it won't create you a project, but I guess it can give you a lot of usable snippets for you to use, which can be really usefull for ksilled programmer and a lot of time saver. I guess nobody expect to copy 500 lines of code from AI and expect it to run as expected?

Anyway, not my point. was leaning towards how to use AI within blueprints.

[frosty heron]

nah it's garbage

I used it

wasting time really

you gotta learn what you gotta learn

LLM is not a shortcut, it's a trap

[polar siren]

It's a tool and I'm looking for suitable way of using them as I do in my web app career very well.

Such as Cursor AI that can loadup project and give you better insight and hints than Copilot for example. And since I'm don't have that insight in UE dev I'm asking if someone else has?

[sick sky]

https://notes.hzfishy.fr/Unreal-Engine/Extra/The-issues-with-GPT-models-and-Unreal-Engine

[sick sky]

You can ask #cpp, no one found useful (and time saving) ways to use chatgpt, copilote or jetbrain AI assistant for "medium" or larger code snippets, its usually good for single line auto completion.

So for a BP usage it will be 300% worse

So its faster to do it yourself

[frosty heron]

Using LLM is gatekeeping your self

just an advice from someone that have used and relied on it on the past

[sick sky]

And your new to UE, using AI isnt a good way to start. Its like copy/pasting a dumb YT tutorial

[frosty heron]

nothing like making you punch the monitor when LLM gives you non existence functions

[sick sky]

From where is this again ?

Game dev server ?

[frosty heron]

Together C & C++

[polar siren]

I see, ok.

I mean it helped me a lot, like suggesting a function or way to implement certain things, simplify BP schema etc.

[sick sky]

But how do you know if its correct

If you dont know what good or bad

[frosty heron]

it really doesn't. You will relaized this at some point.

[sick sky]

Are you new to UE ?

[polar siren]

Yeah, did fair share of tutorials, avoiding C++, keeping myself in BPs.

[frosty heron]

gate keeping my self for years was the worst decision I made

[sick sky]

Might find hidden stuff here https://notes.hzfishy.fr/Unreal-Engine/Extra/Unreal-Engine-learning-speedrun

[polar siren]

I mean I'm in programming for over 10 years, I know programming standarts, concepts and basics, I'm just new to UE.

Kinda feels to me that avoiding using AI is like refusing to adapt, but may be different at UE.

Thanks for your thoughts.

[frosty heron]

If you know Java Script / Python then you don't really have to learn BP

you will already know the concept of OOP

it's not about refusing to adapt, many people have used it. You can ask other experts opinion in #cpp , they will give you the same answer

[polar siren]

It is very intuitive for me, just searching for the right functions etc. is really painful.

[frosty heron]

wait for it to give you non existence functions

[sick sky]

Your programming skills of other languages may help you designing systems and learn faster.
But your new to UE, so it doesn't change the fact that you cant know if AI is saying shit or not

[fading sentinel]

can someone please help me it feels like am invisible here

[frosty heron]

it will give you wrong answer more often than not

[sick sky]

10+ years but you cant find functions from google searchs ?

[polar siren]

I understand, but learning myself is the same process, just slower? How would I know, learning from available tutorials, which are those feeded to AI anyway?

[sick sky]

Idk what you did in 10years

[polar siren]

Eh, no need to be toxic my friend. Every language has its own naming.

I really dont have knowledge of UE functions.

[sick sky]

Doesnt change the google search process, being toxic isnt my goal

[frosty heron]

no different than looking for API and researching on your backend career

[sick sky]

But you keep saying AI helps when it doesn't in your case

[frosty heron]

I can recommend Matthew Wadstein videos for most useful and common nodes.

[polar siren]

So Google search will feed me right answers but AI that is feeded by the same data does not?

[sick sky]

Many blog posts arent trash and have valuable info

You can check pinned messages here, the blog post is shared

[polar siren]

Very Fishy approach 😄

But anyway, I understand your point of view.

[frosty heron]

Are you looking for confirmation bias? Why not ask the experts in #cpp if you are not convienced.

[sick sky]

I also listed useful resources there https://notes.hzfishy.fr/Unreal-Engine/Extra/Unreal-Engine-learning-speedrun#more

[sick sky]

Yes because google will redirect to human written posts

AI will generate

You still have to watch out to not terrible answers in forums

[polar siren]

Thanks for your inputs.

I haven't come for confirmation, I came for use-cases, you both are just telling me not to do that and I hear you.

For me personally shutting something completely down if it has such strong potential, as it does in my career, feels too ignorant.

But with that being said, I'm new in UE and I'll keep studying, cheers both. 👍

[frosty heron]

well if everyone (you can ask for more people) tells you the opposite. It's probably a good indication to consolidate your stance.

[sick sky]

AI is useful in some cases sometimes

In UE

[gentle urchin]

I still have to pick up on AI

i just trashtalk it

[sick sky]

But the engine is to big and private, so only AIs like copilote (github, jetbrains,...) could understand it correctly at some point

[frosty heron]

When it comes to blueprint it's multiple times more terrible btw

[gentle urchin]

If only the unreal documentation section would be heavily updated

it could actually be truly helpfull

[sick sky]

Read source

[gentle urchin]

"how to communicate between blueprints"
"Here's 4 options :
1 -
2 -
3 -
4 -

These are the pro's and cons. select one, and we'll guide you on a simple implementation tour with explanations of each step"

😄

[frosty heron]

I have 1 or 2 ideas on spawning stuff in multiplayer

but looking at your blueprint it might be a hand holding session

tell me your objective, maybe I can put it in words

[tight pollen]

I want to create a system of statistics: strength, dexterity, intelligence, charisma, etc. in general, with 50 statistics, what approach will be the best? should I create it all in an array, each variable separately? I don't know where to start

[frosty heron]

GAS have steep learning curve but for attributes and ability, it's soo valuable I don't want to roll my own worse version

[remote meteor]

since you have 50, you probably shouldnt write them one by one each in a variable

since each stats would probably need, add, remove, override, temporary stats, affecting stats

[tight pollen]

generally when creating this system I want to trust the client so it doesn't have to be 100% replicated

[remote meteor]

if GAS is out of reach, you may want to make your own attribute system, though probably should be similar

in the simplest form, you want to have a Map of Name:Int, handle all the addition, changes and removal in one place

[lost hemlock]

Why is the 2nd window here not collapsing ?

[remote meteor]

or you can move to each attribute being its own UObject, having their own derivative class from a parent UAttribute or something

[lost hemlock]

It's only collapsed the first time I open the crafting window, but stays open forever, and it's interfering with my update system. It should close down and open again every time

[tight pollen]

Can you recommend a YouTube video about GAS?

maybe I'll use it

I just don't know if it's worth it if I don't care about full replication

[frosty heron]

GAS handle a lot of the multiplayer stuff

that's what make it indispensable for many

[remote meteor]

from my experience, GAS handles Attribute, Effects, Ability all quite seamlessly, valuable to any stats heavy game regardless of multiplayer

[tight pollen]

Is it OK on just BP? or C++ required

[remote meteor]

stuff like temporary +5 strength, which result in +25 attack, etc etc

these can be easily defined in behavior

its c++ required

[frosty heron]

at least for the attributes

the rest can be in bp (with it's limitation)

[remote meteor]

learning it would need quite some time

making your own but similar system should be okay too

[sick sky]

GAS is very big

Depends how much you want

[tight pollen]

in general, statistics are a simple thing, when I look at it only from BP, I wonder what is so complicated in GAS

these are just statistics

[remote meteor]

its what you do with these statistics

[remote meteor]

as i said, you can always do it in the simplest form first

[tight pollen]

e.g. if a player has more Strength, he deals more damage, if he has more Dexterity, he runs faster, etc.

I'll check GAS, maybe I'll use it

[sick sky]

Yeah go use GAS

[sick sky]

Check tarnek github readme of GAS

[mild jacinth]

when using Blackboard and Object references (keys), and BTT, there is no way to just set the direct object reference of actor variable once and then get it from the BTT -> Blackboard keys somehow? I can understand that from Event ReceiveExecute you have to cast it to the BP where the BB is running from. so that would be AIController, not the player.

[fading sentinel]

The game structure
Its a 2 player game were each player has 6 holes and each holes has 4 stones
So this is the first thing I wanna accomplish before moving to the logic of moving the stones between holes

And each holes are separate BP and they have a stone array variable that holds the a mouth of Stone in the hole as this will have the game logic to function

[frosty heron]

You will need to write the logic run only by the server to define the 6 holes and the 4 stones each character posses

Character and controller class is not suitable for this btw

if the clientes doesn't need to know about the holes spawn position (I don't see a reason they should)
You can use the game mode since it's only exist on the server.

And when you spawn, you spawn a replicated actor. Only have server spawn actors.
Spawnign as client will only spawn the object local to the machine.

[tight pollen]

@sick sky @frosty heron Have you used GAS?

[fading sentinel]

Yes the logic I wrote(to spawn the stones and update the hole stone variable) is on the GameModeBase

[frosty heron]

Yes, I am struggling and debugging it atm.

It's easily the most important system for my game

[frosty heron]

and the holes?

Spawning is as easy as telling the server to Spawn the actor

if the actor being spawned is set to replicate, the client will eventually get their copies.

And FYI begin play is 95% the wrong place for multiplayer

[fading sentinel]

The holes blueprint actor are inside the level editor

[fading sentinel]

Ohhhh so I used begin play to execute a custom event that triggers the spawning of the stone

[frosty heron]

Then just spawn from the game mode.

Server ->Get all holes in the level, spawn stone on their location

[frosty heron]

This is already wrong approach, you are not gonna get far not knowing switch has authority, isLocallyControlled and when begin play is called.

[fading sentinel]

The spawn logic is from the gamemodebase i created

[frosty heron]

If the actor exist in multiple machine. Begin play will run whenever the actor is ready

So server character 1 spawn. Begin play called

Then player 2 join. Server call begin play

Then client call begin play as well in its machine

[sick sky]

Yeah and its great

[frosty heron]

Then it will also call begin play on player 1 character in player 2 machine

[fading sentinel]

Ummmm
So I later use switch has authority

And I stored all player one holes in a variable inside the game mode same for player 2 which is what I use to spawn the stones

This is the flow

[frosty heron]

Doesn't says much.

Let's step away from your system and just try to spawn actors at the start of the game where all players can see and in sync.

Create a blueprint actor and set it to replicate

Game mode start -> spawn those bp actors into the world.

If you see it in server, you will see it in client.

[fading sentinel]

Oaky doing that now

[frosty heron]

Then work your way forward

[tight pollen]

how long it took you to introduce GAS into your projects, it seems complicated

especially when I don't know C++

[fading sentinel]

but let me mention I have 2 cameras in the level and each player is assigned to one cause they need to see the game from their own perspective

and I noticed when I eject from the player controller (in my editor window), the number of stones changes to match the player 2 windows. However, when I reattach to the player controller (main window), the inconsistent stone count appears again.

For example, in the main window, one hole has 4 stones, while in the player 2 window, the same hole has 2 stones. When I eject from the player controller in the main window, the stone count changes to match the player 2 window.

@frosty heron

[sick sky]

1 week or 2 to correctly understand the bases

[sick sky]

Well this is a whole different thing

[frosty heron]

Move away from your stone and just see if you can spawn actors in multiplayer

Then you can work your way slowly

Camera being ejected or not has nothing to do with how the actors are spawned unless you do something OnPossesed

Which is a function that gets called on server when a controller posses a pawn

[tight pollen]

but C++ is only a little? Will I have to use it for every attribute?

[frosty heron]

Attribute declaration needs to be done in cpp

[tight pollen]

why didn't they add the ability to do this in BP? :/

but only this? Will I have to do anything else in C++?

[frosty heron]

There are a lot of things you can only do in cpp. But there are also things you can do in bp.

Like activating abilities and granting one doesn't require you to use cpp

[proven magnet]

i mean you could expose it to BP, that is another option...

[maiden wadi]

It's not complicated. And you only need C++ for the attributes. Try GAS Helper if you don't want to use C++, it supposedly allows BP attributes.

Gameplay Ability(GA): Does stuff, spawns helper actors, Plays Montages, plays on off cues, adds GameplayEffects, etc.

GameplayEffect(GE): Data class which defines applied attributes, applied tags, and applied state based cues.

GameplayCue: Visuals and Sounds.

GameplayAttribute: Definition of an attribute, it's name, whether it's replicated, how to replicate it, whether it's clamped to another attribute by default, etc.

[fading sentinel]

i spawned a simple cube blueprint and it worked correctly
even

[frosty heron]

now just apply that to your system

Game Mode -> Begin play -> Get Holes -> For every hole, spawn stones.

with the stones being a replicated actor

[lost hemlock]

Im using this Get Game Time in seconds at the start of my function here to see how performance intensive it is, every time i go back to this function time goes from 4, all the way to 15, and it keeps going up and up and up the more i press this button, does that mean it gets slower the more I come back to this function?

[frosty heron]

this just return you the game time

if you craft 2 seconds after the game start, then the time will return 2 seconds

if you wait 12 seconds later before you craft again, the time will return 14 seconds

you shouldn't be worried about performance at this point tbh

and if you do care, you would offload the heavy stuff in cpp (like iterating over large data)

other than that, most stuff is probably negligible.

[fading sentinel]

it worked correctly all 4 cube spawn and are the same on both player so the problem is my stoneBP that's where the problem is coming from

[heavy sigil]

i wanted to add water splash using niagara when a car passes through the water puddle, i am new to Blueprints, is this the right approach, if not can you point me to the right direction. Thank You

[lost hemlock]

how would I offload the heavy stuff in cpp?

I dont know c++

do you like offload them via an AI or smth?

[frosty heron]

you learn it or you live with bp limitation

[lost hemlock]

or some automatic way via the unreal packaging process?

[haughty ember]

How can one order components, so that the tick of 1 happens before another?

[frosty heron]

Again, you shouldn't be worrying about optimization at this point

[lost hemlock]

do you think that this is 'heavy' then?

[frosty heron]

nah

[fading sentinel]

now this was the evil for some reason it doesn't work with replicate

[lost hemlock]

but someone here earlier told me that this is doing like a thousand iterations

[frosty heron]

not sure how others done it, but you can probably disable tick and just tick them using a manager

[lost hemlock]

more multiple of thousand iterations

[frosty heron]

an actor or a component that have a reference to the components you want to tick in order and just call the TickComponent in the order you want

[haughty ember]

One of the components is the character movement component, so I don't really that tick

[frosty heron]

Why would it, don't use construction script

[lost hemlock]

💀

[frosty heron]

Make a Mesh variable, set it to Replicate

OnRep_Mesh -> Set Static mesh

that's it

[haughty ember]

and I'm trying to follow a sample from epic (GAS), they seem to have done it that way;
That is, they have a specific component that is aimed at ticketing before the Cmc (Character movement component)

[lofty rapids]

theres a loop in a loop here, so that can make your iterations more, but it depends on how many items are in the arrays you are looping

usually a foreach is faster in cpp with a normal loop

[fading sentinel]

why please tell me i wanted each stone to have variations

[frosty heron]

engage offload his BP loops to C++

[frosty heron]

And? That will run differently on each machine anwyay

[lost hemlock]

30

[fading sentinel]

so i learn the down side of construction am new

[frosty heron]

You let the server decide the variation

Client just listen to the data choosen by the server

[haughty ember]

anyone? 😢

[frosty heron]

Don't use OnConstruct...

BeginPlay and OnConstruct is not the place for multiplayer

[lofty rapids]

30 items ?

[frosty heron]

if you want to see the same thing, you have to wait for the server to send you the data

[lofty rapids]

ok so 30 keys isn't bad, what about the loop inside the loop

[frosty heron]

OnConstruct will run way before the server can tell you anything.

[fading sentinel]

okay how would i do that you know i have different stones for example gold, ruby silver and so on and each player has their own

[frosty heron]

Have the mesh a replicated variable

OnRep->SetStatic mesh

call it a day

Server sets and choose the mesh

[lost hemlock]

30 slots in my inventory, each slot can have quantities stacked up to 20 so imagine

if you carry wood, you could carry 30*20 = 600

600 is your 🪵

[frosty heron]

it's probably a piece of cake

you can just populate your item and do a test

Heavy stuff is like spawning something

[lofty rapids]

now are you actually carrying 600, or are you carrying 30 with a value of 20 in it ?

what is content ?

[lost hemlock]

and you use that 🪵 to make maybe a wooden house for example, thats what the second loop is for, it's for the crafting & ingredient calculator/inspection system

[lost hemlock]

content is only 30 slots

[frosty heron]

Spawning a lot of actors at once will hitch your game

BP loops run on the same frame

you want to distribute spawning large number of actors in a span of time

[lost hemlock]

so the problem is actors ? not functions?

how many actors?

[fading sentinel]

i dont realy understand how to set this logic but i will let it go and and use 1 stone variation to make my life easier

[frosty heron]

Create an actor, call it BP_RandomizedMesh

ehh, I will do one quickly

[lofty rapids]

one way to make this faster i think is to use cache on the keys array, because as of now i think it constantly gets the keys for each loop

[lost hemlock]

but what if i have few actors, but say one widget actor could create loooooooooooooooooots of tick bindings aka regular binds, say i have a lot of texts and Im using "Bind" to update them every second (rather than exposing that widget component on spawn and making it instance editable and updating it manually in the event graph), that is ticking too much right?

yet that's what most youtubers want you to do when you follow their tutorials, and that creates a lot of complexity & confusion over the long term, down the line.

[lofty rapids]

so content is thirty slowts, how many keys in the ingredients that you are looping through ?

personally i don't bind variables to the widget, i just update the value when necessary

ig if you want it to just be updated, binding is np

[lost hemlock]

I might end up creating like 100 craftable items, i dont know yet, but so far I only have 2 craftable items created in this early stage of the crafting system @lofty rapids

[lofty rapids]

but i would definately put in c++

make a blueprint function library, and offload the loops

[lost hemlock]

what do yall mean by "offload"?

[fading sentinel]

okay thanks

[lofty rapids]

basically just replace bp nodes with c++ nodes

[lost hemlock]

how would that be makign it any faster?

[lofty rapids]

c++ runs considerably faster, especially in loop scenario

[frosty heron]

@fading sentinel

[lost hemlock]

oh, but its the same nodes?

[lofty rapids]

you can create a BFL. you code in c++, then you load the editor and you can use the code you wrote as nodes in bp

[lofty rapids]

no c++ is different stuff

[frosty heron]

Create a bp actor, lets call it BP_RandomisedMesh , SET IT TO REPLICATES
Create a variable of type Static mesh called RandomReplicatedMesh -> Set it to RepNotify
OnRep-> SetStaticMesh by passing RandomReplicatedMesh

the OnRep function

gonna work on my own bug now. If you can't replicate this, read the pinned material 12 more times.

@fading sentinel

[fading sentinel]

OKAY THANK YOU I WILL GET TO IT BUT LET ME EXPLAIN

StoneBP (parent for all stones )

StoneGoldBP (has 4 variations of different shapes)
StoneRubyB (has 4 variations of different shapes)
and so on

each player will have their own stone which will spawn on their holes just like the images i shared

so what i want is that when gold stone is been spawn it will be a mix of all 4 variations

[frosty heron]

You can have any kinds of logic here, the point is the server is the one to decide what mesh it will be and client simply Sync the world by the data given by the server (e.g. setting static mesh to the incoming static mesh ref set by the server)

just understand the basic then you can incorpoate what ever you want to do above

[fading sentinel]

okay thank you so much

[fading sentinel]

followed u on X

[lofty rapids]

yes and it was well worth it, i was slowly migrating more and more into c++ before i took a break

[gentle urchin]

I said it CAN, depending on the scope of your inventory, your crafting system and ingredients

we talked about a hypthetical 3000 slot inventory system

and with the loop structure you have, it means that each recipe item will worst case loop the entire inventory

its a worst case hypothetical.

I suggested making the Inventory the "outer" loop, so your worst case is reduced to O(n)

meaning worst case is only a single full iteration of the inventory

pretty sure your current setup is n^2 or close to it

feel free to refute it ofcourse, I may be wrong on some parts of this

it's quite easy to setup a test for this

If your inventory is max 30 slots then this can be negligable, depending on how your code gets structured and when and hownoften you call the different functions

[lofty rapids]

"If the inner loop's bounds depend on a different variable (e.g., m), the time complexity would be O(n * m). However, if both loops depend on the same variable n, like in the example above, it is O(n^2)."

[gentle urchin]

My suggestions removes the inner loop

And with a Map lookup cost of O(1), the only thing remaining is , as I see it, the O(n) for the only loop thats left

[lofty rapids]

idk much about O notation, but O(1) is great, and O(n) not so bad

[gentle urchin]

O(n) is way better than O(n*m) 😄

If you pay some more memory and code complexity you can make it cheaper

Down to something close to O(1)

[lofty rapids]

either way c++ is a good choice

just for future proofing

in case you have a bunch of stuff

[gentle urchin]

No doubt , but if its not in their skillset , it limits that option

[lofty rapids]

trying to get it to a better time complexity is a good idea

either way

[lofty rapids]

also #multiplayer <-- theres a channel specificially for multiplayer stuff because it's thats difficult

[tight pollen]

C++ just to add attributes and then I can continue using BP, right?

it seems simple, if I only use C++ to add attributes then I can use it 🙂

[lost hemlock]

I can't update the lock thing

I have this problem now....

This is where Im changing the state of the button at the bottom of the crafting menu

it does update the numbers but it doesnt update the button, unless if I go click on the slot again

[lofty rapids]

"unless if I go click on the slot again" What slot ?

check when can you craft? is running

check with a print string

weird its not updating untill you click again, i'm guessing it just isn't running or maybe something with the display

[lofty rapids]

so the first time you click on axe it says locked ?

these visuals are impressive btw

[lost hemlock]

because it's not made to update until i click again, but the tricky part is how, because I already tried to hide the dirty mess by collapsing or ***hidding ***the dirt under the rug, temporarily until you update it again the next time, so you only will see this window if you click on a slot each time you open your crafting menu, it will be reset back to nothing, and every time you open your window you have to click the slot again to refresh the button

I have a suspicion that this might be related though.

[lofty rapids]

because you recreate it every time ?

[tight pollen]

https://www.youtube.com/watch?v=sdqJy3JzFzA&list=PLoReGgpfex3woa35rnoXRyF9N3_p7QVQ2&index=9
I would have to do the calculations in C++

[lost hemlock]

No actually I stand corrected. I tested them, and they are both valid but somehow they still dont make the collapse thing work

[lost hemlock]

I dont recreate everything

[lost hemlock]

So the Crafting_Menu is this

https://tenor.com/view/all-of-it-jean-luc-picard-star-trek-the-next-generation-everything-gif-23455350

Then we got the WB_IngredientsView

[lofty rapids]

when do you run CanYouCraft ?

[tight pollen]

can't this be done with BP?

[lost hemlock]

Then we've got the slots that are being created, and inside of those only when you press one of the slots, thats when the update on the Craft button happens

[lost hemlock]

And then on clicked I have this binding which Im not sure im ever using it anywhere, idk how it owrks

[lost hemlock]

I think I was supposed to use that binding but i actually ended up maybe using another one. I followed the advice of a guy called @dawn gazelle from this channel

https://tenor.com/view/it-just-works-chris-evans-esquire-it-works-out-just-seems-to-work-gif-17762374

idk how it works

[lofty rapids]

🤔

[lost hemlock]

https://tenor.com/view/i-don't-get-it-community-anthony-michael-hall-angry-bully-gif-15322284094986619058

[lost hemlock]

https://media.discordapp.net/attachments/221798862938046464/1320403052615958701/image.png?ex=676978ab&is=6768272b&hm=d3aef926ba6073575f3fda0f031ae14851617aff16c135e54a8355bfc0000686&=&format=webp&quality=lossless

HOW IN THE WORLD IS THIS BUTTON WORKING THEN????

[gentle urchin]

By whatever its bound to

[lost hemlock]

https://tenor.com/view/headache-discord-meme-mild-headache-funny-short-gif-26492643

[lost hemlock]

it's bound to nothing

NOTHING.

[gentle urchin]

Its bound to that something

As you show in prev pictures

Autogen functiom thing

[lofty rapids]

what does update crafting data look like ?

[lost hemlock]

This is like showing that 2 + 2 equals 5, and calculators start doubting themselves

[lost hemlock]

that's not the same thing lol

[lofty rapids]

looks like it's a function that you made that runs when you click, here you bound it

[haughty ember]

I'm following an epic sample (GAS), where they seem to use actor-component-order to make sure 1 component ticks before another

How can I do that though? re-order an actor component before another?

[lost hemlock]

yeah

Okay I tried a new thing, you guys gave me a good idea, but it didn't work again. @lofty rapids @gentle urchin

[lost hemlock]

Still needs to be updated from the slots. I still don't know how the slot buttons work at all. Or what that bind is supposed to do because it's literally referenced nowhere as seen here.

So the thing that is doing the Update on my craft button is supposed to be the "Can Craft?" function

[gentle urchin]

It should idealy update before its clicked

Imo anyways

Whenever crafting menu is opened, the avaliable recipes should be sorted first

[lost hemlock]

Check out what I found.. This one

[gentle urchin]

Its as if you're looking through someone elses code

Copy pasting or duplicating tutorials only go so far if you dont follow along whats going on and why

[lost hemlock]

So that's where it updates the button!

[lost hemlock]

I copy pasted Datura's advice

and many tutorials

and edited them heavily too

[gentle urchin]

Creating simple diagrams of what tou expect to happen also helps figure out why it doesnt, or what needs to be callen when

[lost hemlock]

exactly

[gentle urchin]

Encapsulating that visual flow chart into functions lets you focus on specific problem solving

[lost hemlock]

And then we're getting back to this...

https://tenor.com/view/ah-shit-here-we-go-again-gta-sa-cj-gta-again-gif-20425950

Not even the "Update All Crafting Slots" does anything anymore?!?!?!?

Although that is not supposed to do anything about the button I think

[lofty rapids]

i would of probably left it how it was working, but run the can you craft again whenever you wanted to see it

it looks like a complicated process, thats a lot of copy paste lol

[lost hemlock]

Can Craft is a function in the inventory, it's not really doing much with the widget, despite changing the quantity after counting the ingredients for each recipe. The inventory_system component is not really related I think. The functions that are related are those that are directly contributing to the button properties change.

[lofty rapids]

i thought this was doing the logic

for craft or lock

atleast it sets the text, i don't know about lock image

[normal raft]

i've been trying to make this little graph to spawn free/opensource vegitation on a voxel world.. located at 0,0,0 but i cant seem to get the voxelworld actors particulars such as radius.. probably because there blocking it as they do with every thing ...
but it does work well enough with the just current characters location makes a nice spikey ball of meshed together items .. but i need to figure out the vector of the voxel planets center .. Narator: surely they will not block that.. right stanley?

[maiden wadi]

Correct. C++ does make some other things easier. But the entire point of GAS is to also be designer friendly so that gameplay scripters can create things easily as well.

[normal raft]

but yeah if you did a line trace towards the top of the debug line it should collide with the planet surface giving you a defonate location

to spawn what ever the f you like

the way i am trying to work is the 20000 random areas would then be getting some spawned actors/meshs/etc

[gritty raptor]

I can't edit last property for the data table i made, it says its not editable and im sure as hell it is. Any idea why?

[tawdry walrus]

What is a save game checkbox?

[tawdry walrus]

because is object ref not a class ref

change it from object ref to class ref

[maiden wadi]

It's a marker used for serialization. If you use an Archive without savegame, it'll save every single property on the class. If you use an archive for savegame, when you write this object to it, it'll only save the ones marked SaveGame

[gritty raptor]

Thanks that did it

[lost hemlock]

This log is full with access None errors from my controller Blueprint. Why?

[maiden wadi]

Pointer wasn't set at the time it was accessed. If it's okay and you don't want it to do anything you can simply IsValid it. If it's causing problems you'll need to run logic on different events.

[lost hemlock]

this is handling my crafting menu

[lost hemlock]

well im already doing IsValid?

Validated Get is the same as IsValid, right?

[maiden wadi]

It is. But you're plugging in the not valid side too.

[tawdry walrus]

Thanks for the help

[lost hemlock]

yes because earlier it would stop at the is not valid

aka if something wasn't valid, the entire line of code after it would be terminated

**necessary **line of code

[maiden wadi]

Which is fine. You can use sequences for that.

[lost hemlock]

sequences why? sequences where?

[maiden wadi]

If you use C++ at all, I have a blog post that might interest you if you're into SaveGame stuff.

[maiden wadi]

• Sequence
  • Check IsValid and do something if it is
  • Do something else even if the IsValid fails

[tawdry walrus]

I am not fully utilizing C++ for the save system, but it would be beneficial to learn C++.

[maiden wadi]

These might help a bit. Understanding the method makes your savegame code extremely easy to use, and even project portable, cause it doesn't really care what objects you're saving. It all just gets written to a byte array and pulled out based on what you call it on.
https://brandtborges.wixsite.com/authaer/post/saving-games-smartly
https://brandtborges.wixsite.com/authaer/post/uobject-serialize

[lost hemlock]

Ι don't wanna do something else if the isValid fails, I wanna do exactly the same

[maiden wadi]

• Sequence
  • Check IsValid and do something if it is
  • Do other things regardless of whether the IsValid is true or false

[tawdry walrus]

The links don't work.

[lofty rapids]

then there is no use for the isvalid because you don't do anything different after

[maiden wadi]

🤷‍♂️ They open fine on another PC here.

[tawdry walrus]

weird, I think it's internet issue from me

[lost hemlock]

yes but isn't it supposed to get rid of those log errors????

[lost hemlock]

Also, doesnt that mean that the sequence would also be not needed in that case? no use for the sequence either

[lofty rapids]

possibly if you use it the correct way, it doesn't make it valid if it's invalid, it's still invalid

so if you try to use it and it's empty then you get those errors

so because you try to access it even after if it's ben invalidated so you it pops up

[lost hemlock]

yes but if its invalid it will use those nodes? and is supposed to continue with my function forward

[lofty rapids]

the circle i circled will do the same thing if valid or invalid, and if your trying to access an invalid well thats the point of isvalid, you don't access it on the invalid path

[lost hemlock]

what do you mean you dont access it?

if i put a break point in this line of code

all of it will look like it's completing its course properly

[lofty rapids]

what the isvalid is for

on the valid path you use the variable

[lost hemlock]

but the last thing will not work

[lofty rapids]

on the invalid path you don't

[lost hemlock]

my function would end waaaaay way too early and exit this code through a "is not valid" execute if the "Is not valid" doesnt get hooked up to anything

[lofty rapids]

which is a problemif you need to access that variable

it's empty and you most likely need to fix that

[lost hemlock]

and the reason why I get through the trouble to do all this is because im trying to make this set visibility collapsed thing work

[lofty rapids]

this is all too much at once

if your variable isn't valid you could make it valid

what is this variable ?

[lost hemlock]

Im trying to set hidden or collapse this widget

and only have it visible when you press the button

slot button

[lofty rapids]

i c

[granite frost]

Why isn't this working?

the value is 1 but after setting it when I print like this its showing 0
Also the array length is showing 0 when I added an entry just here
the array element is a struct

[lost hemlock]

how?

[lofty rapids]

well by the looks of it you misunderstand what is valid is doing

you use twice the wrong way

[lost hemlock]

can i force a variable like that to become valid?

[lofty rapids]

i mean a lot of times thats what you would do, on invalid, make it valid

but it depends what you want to do

[maiden wadi]

Find is a copy. To affect a Map entry, you need to Find it to copy it. Alter a local copy that is saved. And then add that copy back to the map with the same Key.

[granite frost]

Thank you!

[lost hemlock]

@lofty rapids this is what im trying to do

[lofty rapids]

but these invalids are confusing

i'm not getting it really i see you want to show hide the widget widget i would figure you can just use visibility

[lost hemlock]

step 1) create crafting menu. aka all this entire thing

step 2) create the ingredients widget , aka the 2nd box on the screen on the right side

no

thats step 3

step 2) create update via clicking on one of the slots

step 3) create the ingredients widget , aka the 2nd box on the screen on the right side

and update the button down there

[final berry]

I have a question, for some logic I need to access all actors of class in event tick and I honestly don't know how to avoid that. In short: an actor is allowed an action when a condition on all actors of a certain class (which are 64 of them) is true (so now I do on event tick a get all actors of class and do a foreach and set it to true or false and then break when its false (and then it tries again obviously) or when all are true then a main variable gets set to true and then it stops cehcking until I tell it to make it check again.

I guess this is a bit vague. I can explain further if anyone wants to help. Any help is appreciated

[lost hemlock]

ok i just realized I can just set that ingredients widget to invisible

from the craftingmenu itself

is visible? false

i mean from the designer -> details

oh, It's already collapsed

https://tenor.com/view/how-dare-you-excuse-me-gif-26208500

[maiden wadi]

64 is fine probably for testing purposes. Or even small projects. You probably won't notice it. Keep in mind the GetAllActorsOfClass will only pull the specific 64 of that class you have, it doesn't go over EVERY single actor to get them, so it's kinda quick for smaller sets of actors.

That said what you can do if you want to avoid that, is make a setter for your actors in some sort of global place. Manager for them, somewhere like a gamestate component or something. What they can do is register to two arrays. All of them in one array. And then all of them that are true in another array. At this point all you have to do is compare if All's count is the same as True's count which is a much faster comparison.

Another alternative is making the true/false setter call some manager where the function is ran to iterate over all of them. That way you're only running the logic when one of them triggers to true.

[final berry]

I see, thanks!

[maiden wadi]

Also, on top of this. One piece of advice I would take to heart is not to care about optimizations until you have issues. I can almost promise you that a BP iterator for 64 actors doesn't cost much for checking a boolean. It probably registers as less than 0.05ms on a profiler. Optimizations are always good if you know how to do them, and if you're on a learning path, for sure go for the harder route. But also try not to get stuck in optimization phase because it'll kill your design progress.

[final berry]

Yea Im noticing that, I've been stuck in refactoring for weeks now because I kinda let it ran and now I can't stop 😛

I had sizemaps of 1gb so I definitely needed some rework, but the sizemaps are 80mb max and those are just a couple of classes. Also reduced dependencies a lot so maybe you're right and should let this one slide

[final berry]

The profiler you're talking about, where can I find that one and at what treshold should I be careful?

[maiden wadi]

Unreal Insights. You can access most of it from the stuff here

[gentle urchin]

Just write optimized code, so the profiler stays useless

[maiden wadi]

I want to like StateTree, but I'm not sure how much of a fan of it I am right now. Like I love the UI. But making simple AI turns into a disaster quickly without custom stuff because parameters are annoying to use.

[gentle urchin]

I too like the ui

[dawn gazelle]

If a variable like this is invalid, that's almost always because that variable has no value set in it. To "force it valid", you need to SET it with a reference that is valid so that it has a valid value set in it.

[gentle urchin]

Not to much else

[autumn pulsar]

Didn't realized I got replied, but basically I'm trying to make a ledge grab, and while in the air state I'm not sure what the best way to detect if I've hit a wall

I guess is there a way to detect if I'm physically interacting with a surface at all?

[lofty rapids]

usually i think done with a line trace

[autumn pulsar]

so then I can run some traces to figure out what surface it is

not sure if it's cheaper than just tracing every frame

another issue with tracing every tick is then it's prone to loss of precision at low frame rates

[frosty heron]

if something has to be evaluated every tick then so be it

you will need to apply sub stepping for closer result

Lower fps computers applies more sub-stepping, the result will be more accurate but at the cost of more cpu power

[pastel apex]

question, how do i access the material boolean parameter in a widget BP?

[undone bluff]

look into dynamic material instances

ah but you cannot access the static bool, the entire point of it is to cut out unnecessary parts of the shader

you will need to use a lerp node instead

as long as the value you pass in is 0 or 1 it will work like a bool

[mighty kernel]

Super simple problem I'm struggling with. I'm using a very simple fade to black/fade out widget animation which I want to have trigger certain actions once the widget reaches full opacity. But I don't see any way to add an Anim Notify, only Event Triggers, but those don't seem to be used in the same way. Anyone see what I'm missing? Note that this is for a Widget Animation, not a mesh animation.

[pastel apex]

ohhh ok thanks

[undone bluff]

play animation has a return value iirc, I am sure you can just get the length of the animation from there and then stick it into a delay node

[dawn gazelle]

You'd use the event triggers. You bind them to events in the widget and have them do what you need.

[undone bluff]

oh nice

[mighty kernel]

I tried this but couldn't figure out how to reference them from the blueprint?

[dawn gazelle]

You don't. You bind the animation to the event you want.

[undone bluff]

that's a little odd, opposite of how event dispatchers work

but to be fair, they are called event triggers, not event dispatchers

[maiden wadi]

It's technically the same thing.

Broadcast meet Event.

[placid apex]

Hello got a issue I'm trying to resolve, would be nice if someone helps out. Thanks
My goal is to get the cursor centered with an object in the map.

I have a object that gets projected to screen 2D vector. From there I get my viewport size and save it for later.
I need to figure out my actual cameras viewport size which allows me then be able to determine where my cursor will be set.
Using a equation from online I take the camera H FOV and divide it by 2; input that into a TAN node too then multiply by my desired camera distance. This gives me my output that I multiply by 2 to get my Cameras Width. Except I seem to be off on the X axis by a lot.

Any clue on where I did my math wrong or am I calculating this wrong?

[lofty rapids]

if you don't get answers in here #game-math might be a better place to ask

[mighty kernel]

This worked, thank you!

[pastel apex]

wait question, for the dynamic material instance on that screenshot. Is charge radial a texture or sprite?

sorry not charge radial

i meant image charge

[undone bluff]

I'm not sure what you mean, it's just an UMG image widget

[pastel apex]

oh that's a widget ok

hmm

[undone bluff]

it doesn't matter as long as you can assign it a material

[pastel apex]

right

guess wrapping my brain a bit on figuring out where to slot my sprite in that

though i know sprites are basically just textures with UV Coordinates

question (unsure if it goes here) is there a way to just desaturate images in a slate UI?

[wide beacon]

hello, my charcter seems to shrink after ive opened a door? how would i find where to fix this?

[frosty heron]

look for nodes that set the scales

you can open a blueprint asset, type set scale on the search bar then hit the binocular button

look for classes that you think responsible for setting the scale of the player

[wide beacon]

okay thank you. its so weird he just halves in size after entering a room

[frosty heron]

you want to note when the character start shringking and track down the events that lead to the player shringking

[pastel apex]

ok new question, is there a way to extract this from a sprite datatype in blueprints?

[frosty heron]

where is even this?

[wide beacon]

got it, my teleporter scale sets it back to 1, and it had to be 2 to maintain the same size, thank you

[pastel apex]

you asking me or Raidz, ColdSummer?

[zealous moth]

others have answered but basically you need to do a multi trace system on tick.
It won't cost much but it gives you real time accurate data.
First a trace in front of you, it can either be at chest height or above your head. -> on hit, if true, there's an obstacle.
Second trace is slightly forward of that first hit and this time from above down by a magnitude that you judge to be your ledge grab tolerance. For a UE mannequin, 100-200 units is more than ok. If it also hits, you have a ledge.
Third trace, if you want it, is to trace at the second point for a capsule trace as big as your player capsule. This checks if you CAN climb it or just grab it. If it hits anything , then no climb.

[autumn pulsar]

Was thinking of trace, but there would be some odd scenarios, such as approaching a cliff from an angle that could cause it to fail

[zealous moth]

add more traces that cover critical angles

that's what i use for a 2d ledge grab, wall climb and such

@frosty heron did you ever manage to retarget in 5.3 with ALS and VRM? There seems to be tons of rework needed with VBs

[autumn pulsar]

is box trace expensive?

compared to line trace

[maiden wadi]

Compared to them? Sure. But there isn't really much comparison going on. If you need a box trace, you need a box trace. You can't replace it with line traces.

[craggy flicker]

I forgot what this blueprint type is called, but it's used a lot for interaction systems. Like, you can add the interface to a blueprint object, implement the method, then locally implement the logic on that object. Then you can just check for that interface?

i think it's actually just called an interface right lol

[pulsar osprey]

you got it

[zealous moth]

@autumn pulsar basically as expensive as a penny on a dollar.

[craggy flicker]

on top of this, say i have multiple interaction interfaces on a blueprint object

i can call the interface implementation method on the object, change data on the object, then have another interface implentation method on the same object that'll use the changed data right

like two interfaces, separate implementation logic, uses same changed data

on the same blueprint object

[autumn pulsar]

For an on overlap event, is it possible to generate overlap events for specific collision shape?

[fiery swallow]

Sphere overlap actors, box overlap actors, etc

[ornate wren]

Trying to understand unpossess,,,, To the best of my knowledge the player spawns an AIController then spawns and possess a Player Controller.

At this time the AIController is just dorment. But, if you unpossess the PlayerController it falls back to the AIController?

Is this correct?

[dawn gazelle]

A player is a player controller - that's the basic thing that represents a player. Pawns are possessed by controllers.

[ornate wren]

But, when the game starts theres is a dorments AIController sitting aournd?

[dawn gazelle]

When you unpossess a pawn, it's disassocating the control a controller has over that pawn.

"Auto Possess AI" is something set on a Pawn. You are saying with that setting currently "Whenever this pawn is spawned, spawn an AI Controller for it and possess it". So that pawn is spawning its own AI Controller when it gets spawned, and if you happen to possess that pawn with a player controller, that AI Controller could still technically linger.

[ornate wren]

So how do you get back to the AIContoller?

[dawn gazelle]

You'd probably have to store a reference to it in order to keep track of it before possessing it with a player controller, and when when you'd want it to swap back, cause it to possess that pawn again.

[autumn pulsar]

So I have to make another actor?

[ornate wren]

Here an example, when I set the AI Controller Class to None, no AIController is Spawned to just hang around. My understanding is it was suppose to revert back to the AI Controller when you Unpossessed.

[dawn gazelle]

Of coursei if you set the AI Controller class to none, no AI would be spawned as the class isn't valid.
There's no logic that I can see within the engine that would make a Pawn automatically get repossessed by the AI Controller that spawned for it by this auto-AI possessing pawn setting

[fiery swallow]

No just type it in. they're nodes

[ornate wren]

I could be wrong, but I don't think its getting repossessed by the AI... I think the controller is the AIContoller and when the Player Controller Possess a pawn its using the Player Controller... Then when you unpossess it just falls back to the default which is the AI Controller normally.

I can be worng...

[dawn gazelle]

Right, there is nothing in the engine that makes the AI Controller repossess the pawn it was spawned for.
If you posess a pawn with a PlayerController that was posessed by that AIController, the AIController is no longer possessing that Pawn and the engine has nothing built in means to re-possess it - you'd have to build that out yourself (would involve creating a custom AI Controller class, keeping track of the first pawn is possessed, and keeping track of what is possessing that pawn, and if nothing possesses it, possess it itself)

[ornate wren]

When you say, there nothing in the engine. Do you mean you've looked through the code? Not sure what you mean... Thanks

[dawn gazelle]

Yes... Looked through AIController.cpp, Controller.cpp, Pawn.cpp, PlayerController.cpp

[autumn pulsar]

Ah thanks

[dawn gazelle]

Here's what this would look like in blueprint for an AIController to repossess its first controlled pawn (and also destroy itself if its pawn no longer exists!)

[ornate wren]

Ok, thanks... I know there's a video of switching characters... I'll go have a look at that... 👍

[ornate wren]

Looks like I was led astray by AI... ChatGPT said I'm correct and two other AI's say you're correct. For the record Epic only barley mentions Unpossess in their documentation... 😢

It just weird they keep the old AI Controller around by default.

[dawn gazelle]

Not really... Most of the base classes are set up to allow you to configure them how you need without much in terms of behavior built in. Like in your case, it may be important that the same AI Controller is possessing that same pawn, but also maybe not and in that case, you could destroy it when it no longer possesses a pawn, and you could actually cause the pawn to create a fresh AIController for itself if it ends up with no possessing controller.

[lost hemlock]

Like this?

Do I also need to validated get it and direct it in both cases to execute the rest of the code??

Why is target of that Set of my Character Movement requiring reference to AC_Crafting??? It shouldn't have anything related to that. Target should be compatible with "BP_First_Person_Character" reference

[dawn gazelle]

No.

If something isn't valid, you can't use it as a reference to itself to then make it valid.

[dawn gazelle]

This is happening because the particular SET that you got here would be for setting that value within an AC_Crafting component reference, not within the current object class.

[lost hemlock]

So I need to find one that is coming from the character?

[dawn gazelle]

No. You probably shouldn't be messing with storing references anyway.

[dawn gazelle]

You have a reference to "First Person Character". Assuming that is valid, then you should be able to always get the "Character Movement" from it.

[lost hemlock]

but you told me I should use set, no?

[dawn gazelle]

You asked how you make a reference valid.

[lost hemlock]

get or set?

[dawn gazelle]

If you want a reference to be valid, you have to have a valid object set in it.

[lost hemlock]

why not make it valid? sounds like thats what i gotta do

[dawn gazelle]

Again... if you know for certain that "First Person Character" is valid, then its "Character Movement" reference should be valid too (only because it's a component that is built into the character class, so it's basically guaranteed to be valid)

If "First Person Character" isn't valid, then you can't get it's Character Movement from it.

[lost hemlock]

why would it not be valid?

then should I just set "first perosn character" too?

that sounds hillarious but wrong

[dawn gazelle]

It would not be valid if you didnt' set a valid reference into it.

Or if the reference you had set into it is destroyed at some point.

[lost hemlock]

nah it wouldnt be

so i guess the character movement reference should come from Variables > Default or from Pawn > Components > Character Movement right?

but I didnt find GET character movement there, only SETs so I guess ill get it from Variables > Default

[dawn gazelle]

This is a "GET" of the Character Movement Component that exists on the "First Person Character".

You do not need to keep track of it again if you have a valid "First Person Character" reference.

[lost hemlock]

alright then that works

[lost hemlock]

so from there I need to get that character movement or set it?

[dawn gazelle]

You tell me... What is it you want to do?

[ornate wren]

Any ideas why the AI MoveTo is not working. No On Fail or On Succes... Just coninues...

My movement point is at that red arrow:

[frosty heron]

I'm using 5.1, not sure the differnce

only used ALS V4 and VRM on UE4

rolled my own simple movement abp for UE5

[frosty heron]

Print the Movement result on Success or On fail

You also leave the Pawn empty

[ornate wren]

There's no success or fail.

[frosty heron]

print string before the node and the top

see if it get called

if it didn't get called at all, work your way up. Find out why the event is not firing

[ornate wren]

Maybe the pawn is the issue... One sec.

[ornate wren]

Its working now... I'm so use to leaving the target blank, that I forgot it wasn;t the target.

[frosty heron]

GetController -> Get Pawn

[ornate wren]

Feel like I've made that error before.

[frosty heron]

wdym by the widget should be overlayed on the current level or separate level

if you do hard travel (open level) your widget is poof

[lost hemlock]

create widget

and then shut it down

and at the same time also do this disable thing at the end for the 2nd box

[lost hemlock]

So you have two boxes at the screen of the wb_crafting_menu

[lost hemlock]

This ingredients window needs to be hidden because the transition will not happen smoothly

i tried to find where that thing gets updated so that I can call it directly

because it seemed like that Hide Ingredients function didnt work properly

I put break points in EVERYTHING, and it goes over them

but somehow it still doesnt hide it

well.... the first time that I boot up my widget it does work, it is hidden, but thats because it is supposed to be hidden at first, thats the default stage of the crafting menu when you start up your widget

and only create the second window when you press in one of these craft slot buttons on the top left, like axe, hammer etc.

thats ONLY when the second window should be created

and so I tried to call this function but it seems like it's the same thing, one exists in inventory system, one on the ingredients view

also I have trouble understanding what your binding is doing, i tried to go over it but cant understand how my slot buttons work at all

@dawn gazelle This is the binding you told me to create

I need to update this somehow

or Hide it

hide it and then create it

Alll this was working

something broke now in my code

[dawn gazelle]

Well that spontaneously exploded from "Do I do a 'set' or 'get'" to an all of sudden "HOw do I make my entire system work".

[lost hemlock]

and it all stopped working

i mean, the hide thing stopped working, thats it

I can either update it on spot

or hide it and recreate the slot again

because this button code doesnt update automatically

[lost hemlock]

well, that's the reason why i need to know how to work that out

its either that being a reference problem

or something else

there's more than one ways to skin the egg

[dawn gazelle]

No... You explained everything you're trying to do without even referencing anything to do with thing you're having trouble with at the moment.

You have a reference to "Character Movement Component"... What is it you want to do with it? Do you really need to set it?

Can you just get it?

[lost hemlock]

this is not very important

as long as it gets the widget to either update

or hide

[dawn gazelle]

That's what you asked me what you should do.

[lost hemlock]

then that's the problem

I explained you why I have that problem in the first place

[dawn gazelle]

Without explaining what the problem pertains to... I am trying answer something specific and then you've asked me to solve everything else.

[lost hemlock]

yes, set character movement component itself

so that i can keep it valid

[lost hemlock]

alright then lets take it one by one

[chilly crane]

Is there a way to keep a blueprint component active permanently?

[dawn gazelle]

But the question then is, why do you think you need to set it?

[lost hemlock]

thats exactly what we are trynna figure out lol.

[chilly crane]

or at least, a way to keep it active until something turns false

[lost hemlock]

to keep it always valid

[dawn gazelle]

That's not what setting does.

[lost hemlock]

ok then what do I need to do?

[dawn gazelle]

You cannot keep something permanently valid.

If it gets destroyed... It is no logner valid.

[lost hemlock]

but character movement is character movement

[dawn gazelle]

If you don't have a valid refernece to begin with.... It won't be valid.

[lost hemlock]

it is supposed to always be a valid component, right?

otherwise how would i be able to have movement

ohhhhhhhh wait

wait a minute

[chilly crane]

So specificially I need a component to be active as long as certain widgets are activated, and once on game start, I've got the on game start sorted, but then it seems to destroy itself, so I need a way to bring it back on certain events, and then stay active until that event finishes

[dawn gazelle]

It should be valid component of a First Person Character, so long as your first person character reference is valid.

[lost hemlock]

I dont think its about the reference

because in this widget logic

When im pressing the button

[dawn gazelle]

It's all about references if you're talking "valid" or not.

[lost hemlock]

im also turning off character movement at some point

because the widget is in your face

and you shouldnt be able to move

so i literally actively turn it off!!!!!

because thats what I need to do, but then why is it invalid if i also turn it back on?

[dawn gazelle]

Ok, but activation state of a component doesn't change a reference and would not make the reference invalid (or valid for that matter)

[lost hemlock]

ok so why is it then getting invalidated?

[dawn gazelle]

What tells you it is going invalid?

[lost hemlock]

the error log at the end

[dawn gazelle]

And I've given you a copule of reasons why it would be invalid...
The "First Person Character" reference could be going invalid, and therefore you can't get it's "Character Movement" refernece because it would no longer be valid at that point.
Either that, or the "Character Movement" itself went invalid because it was destroyed or somehow removed from its owning character.

[lost hemlock]

you're right

https://tenor.com/view/both-kevin-spacey-perhaps-both-gif-14803012

[normal raft]

does any one know why my mesh is disapearing at certain angles?

[lost hemlock]

It’s like showing fish can climb trees

[dawn gazelle]

It's only one really... It's because the first person character reference is invalid, and attempting to get anything from that reference and use it would also be invalid.

[lost hemlock]

im finally glad to now know that were getting to the bottom of this at least

[dawn gazelle]

(this is a major learning in unreal.... dealing with references)

[lost hemlock]

but the first person character doesnt go anywhere?

wait

can i also do validated get on the character ref

[dawn gazelle]

Obviously something happens to it, or it was never set with something valid to begin with.

[lost hemlock]

and then hook up both execute conditions on the rest of the line of code

and have it forced to go to the next node anways?

that seems like what i wanna do

[dawn gazelle]

You cannot just do a "validated get" and expect it to work on the "not valid" pin.

Not valid = it won't work.

[lost hemlock]

references are sometimes just kinda stupid like that and they give you some random errors but i feel like i could bully it to force it to go where I want it to go

[dawn gazelle]

Not valid = "waht I have stored in my variable does not exist"

[lost hemlock]

just intimidate it

[dawn gazelle]

The next node if you try to access it, it's like saying "Hey you, do something with this "NOTHING" please".

When you are expecting it to really be more like "Hey you, do something with this First Person Character please".

[lost hemlock]

yes but in the non valid case it will still take you to the next node

[dawn gazelle]

Yes, because you're hooking it up that way.

It's still invalid.

[lost hemlock]

oh okay

then if its nothing that means the next reference (character movement) will also be invalidated

[dawn gazelle]

You usualy don't hook up invalid things to the code because you don't want that empty thing to be accessed.

[lost hemlock]

and in a domino fall it will invalidate everything in its course

[dawn gazelle]

Correct

[lost hemlock]

so the question becomes, how do we "Abracadabra" make it always valid from the start?

What I can think of is somethign like this

1. get controller first
2. get character from that second
3. now get the rest (character movement)

but this tower of references should have strong structural bases so that it doesn't fall in on itself @dawn gazelle

[kind estuary]

sorry i went to fry some bananas 🍌🔥 delicious.
So imagine like Two Point Hospital. When you go to the map, you can click on other hospitals, and you go on that hospital.
See?

[lost hemlock]

I feel like "Get Controller" should be a strong stable enough structural base to hold our ***Eiffel ***tower of references

[kind estuary]

If you open a new level the widget is poof, thats right...

But the level could be MapLevel. So it spawns the actual widget. You get me?

[dawn gazelle]

If you're already in the controller, you don't really need to get it... "Self" is the controller, no?

[lost hemlock]

oh true

[dawn gazelle]

You could get the controlled pawn of self.

You may want to check if it is valid.... and if it is.... get component by class "character movement".... and again check if that is valid.... If the stars align and all things are valid, then you should be able to access them all along their path and plug them where you need them.

[lost hemlock]

check if pawn is valid now?

[dawn gazelle]

Well, what happens if the player controller isn't possessing a pawn?

It's going to be invalid, isn't it?

[lost hemlock]

hm, thats a good question

[dawn gazelle]

And thne if you're trying to pull a component off of it.... Yep... it's invalid 🙂

[lean gulch]

Sup unreal bros!!

[lost hemlock]

you are the expert after all

not me

but I feel like in my game it should never unpossess anything

because I haven't made any weird possession code logic for that

[lean gulch]

I'm really new to unreal engine 5 and I promise I will get better at C++ programming within 2-3 months!!

[ornate wren]

Hard problem here... I used the AI to Move to the Chair where I'm sitting, but the Camera stayed in the starting location. I've tried a bunch of things, but I'm not sure how to line things back up?

[lean gulch]

I'm looking to make some friends and do some programming

[dawn gazelle]

Well, that's on you to manage, but usually it's best to be aware that it could happen where that reference may not be valid.

And that's why you may want to do valid checks, and you could print strings on not valid to log that there was a problem.

[chilly crane]

so why when the game is paused will a blueprint component not receive any triggers even if the tick is set to execute on paused? I can however trigger events inside of it from the playercontroller...

[dawn gazelle]

"Get Controlled Pawn".

[lost hemlock]

I never expected in my life reference variables to be so hard

[dawn gazelle]

"Get Component by Class"

[dawn gazelle]

This getter, is literally looking for a "Character" type of reference.
"Pawn" is a parent class of "Character", so you can't use a "Pawn" reference where a "Character" reference is needed, but you could use a "Character" where a "Pawn" reference is needed.
ie. All Characters are Pawns, but not all Pawns are Characters.

[maiden wadi]

What triggers?

[chilly crane]

button clicked in a widget calls a function message in an interface. The receiver in the player controller registers it, but the blueprint component doesn't

[ornate wren]

Drag character movement into the BP...

[lost hemlock]

But I can't get character connected to both at the same time

[chilly crane]

#1 is the widget, #2 is the component, #3 is the playercontroller

[lost hemlock]

character can't have target connected to that "Get Controlled Pawn"

[ornate wren]

What BP are you doing this from?

[maiden wadi]

You didn't tell it to run OptionLineSwitch. You told it to run SpaceEvent

[maiden wadi]

Cause you said get all actors with the interface. And run the interface event on those actors. That does not propegate to it's components. The Controller at least is an actor and would run the GraphicsLogic components SpaceEvent. But you haven't run the interface function on the component anywhere.

[ornate wren]

Example...

The cast would be your BP_FP Character.

[lost hemlock]

nice example, but what If I dont wanna use a cast here for performance purposes?

[ornate wren]

Interface... Cast isn't a performance thing... Its a scalability thing...

[dawn gazelle]

You dont' need anything other that what I've told you.

"Get Controlled Pawn" > "Get Component By Class" (preferably with checking if they're valid before accessing them further)

[kind estuary]

Im making a simple point and click game.
When i exit my house, it should go to a map of village (WIDGET).
Where i then can click on to go directly to certain buildings.
Then you click on the building and goes to that level.
Can this just be a widget overlayed on the current level?
Or should be a separate level, called VillageMap or something

[dawn gazelle]

This happens because you're selecting from the "Variables" list, which is usually the "Variables" present in the current blueprint.

[ornate wren]

If its the only one in your project

[dawn gazelle]

It can be just a widget over top, sure.

If you decide to stay on the current level, then that gives you the option of forgoing a map travel.

[maiden wadi]

Two weeks not working. I should make a reddit account and go on a crusade against people saying not to cast.

[dawn gazelle]

🙂

[kind estuary]

thanks. though what worries me is that the game keeps running below this widget, right?

thats the thing

isnt it better to create a level for the map itself

[dawn gazelle]

You can pause the game or set time dilation really low* (*thanks squize) (slowing things down to extreme levels where it would literally take thousands of real life years for 1 second to pass)

[ornate wren]

Any idea how to fix camera/boom position after AI Movement?

[chilly crane]

no, so as you can see in the ss, the one that calls the "space event" is the playercontroller, and that event is in the blueprint component, my test that I can trigger events in the componenet. However the 3rd image shows the component trying to execute code on receiving the interface event

[maiden wadi]

No where in your screenshots are you running the interface call on the component.

[lost hemlock]

Ok I realized what the problem was

[placid flame]

hey guys, Im very new to unreal and Im trying to procedurally generate terrain using wave function collapse and would love any assistance in debugging this blueprint its purpose is to check the neighboring cells and remove invalid modules from the available modules array by checking the neighbors' sockets. Im not quite sure what the issue is but I think the Socket List sets are not updating even though in the blueprint debbugger it shows me the corrects sockets in the neighbors but when try to get those Socket Lists it doesnt return the correct ones. Here is the link to the blueprint: https://blueprintue.com/blueprint/vgb5lw3o/

[lost hemlock]

But now for some reason I also have another problem

[chilly crane]

this one