blueprint

[frosty heron]

even the camera? wut..

[warped juniper]

Ask epic lol

So what I gathered:
For some inexplicable reason, if the actor spawning the projectile moves above X units per second in the general direction the projectile tries to move towards during spawn, the projectile for some reason will hit itself.

[frosty heron]

No, where do you get the idea of blocking everything.

the responsibility to control what's blocked and overlap rest on your shoulder.

[warped juniper]

Again, ask epic... This is just how the template had it. I kept it like that because I assumed they know what they're doing

But it does look like it barely seems to work...

[frosty heron]

@warped juniper btw does your sphere have collision enabled?

it shouldn't

[warped juniper]

Nope the mesh has no collision at all

And even then the debug prints still say that the CollisionComponent hits the CollisionComponent

Or maybe...

Hmh so good news and bad news

I have an idea for making one from the ground up that doesn't have this issue

But I don't like that I don't understand why this problem exists to begin with

[warped juniper]

@frosty heron I FIGURED IT OUT.
The actor moving forward was still able to sweep for the projectile it spawned since Epic did not account for the actor being able to move fast enough to catch up with the projectile, and since one of them could create a hit it executed it for both sides.

[narrow kite]

To be fair that sounds like a you issue. The coding detects overlaps. It can happen under many conditions. It's up to the dev to prevent multiple overlaps, detect which overlaps count etc.

I have ran into those issues a few times myself, but the ultimate result was finding out how to resolve it, not actually a defect in the coding/Epic. Although they do have plenty of problems 🙂

[narrow kite]

Evasion Test

[steady night]

Hi i need help with how i can make a projectile "zigg zagg " towards its location

the yellow line is the projectile so its going in a pattern like this kinda

i was thinking on changing the velocity by an axis but maybe thers a better way ?

[frosty heron]

You use timeline for something with fixed length

[steady night]

i am am using a timeline

and lerping back n forth somehow

[lofty rapids]

this probably jitters ?

[white parrot]

Did you try sin function?

[lofty rapids]

sin waves

[steady night]

https://gyazo.com/618fa898ea237931d3208bf0f7e4fbd0 yeah its not working at all XD

whats sin waves...?

[white parrot]

Look up the graph of the sin function

[lofty rapids]

you can also make a curve in unreal

which you can then use to move the thing properly

[last peak]

https://giphy.com/gifs/school-quick-maths-giometry-PkWalgZ1EL48sxV8Z5

[steady night]

hmm ill test some stuff

[lofty rapids]

thers curve float which is really nice to use tbh

[dark drum]

Yea curve floats are nice.

[lofty rapids]

i used it for camera in a game

so when it jumps from player to player

it had a curve on it

very useful thing, not too bad to use either

[lone spindle]

I've been experimenting with a new blueprint/programming pattern and wondering if anyone else has tried this, are there good times to do this? potential pitfalls? better alternatives?

A blueprint object base class defines a function like "run()" which subclasses will implement. These subclasses can be treated like standalone scripts, which could be run anywhere in BP. For example an actor could construct one and run it.

I've noticed that the new Mover plugin does something like this for implementing movement modes, its also not too different from attaching a StateTree to an actor.

I've found this useful in a couple cases where I have complex interactions between multiple actors. Previously I'd have interfaces and event dispatchers implemented in multiple places to get the actors to work together, now this one script contains most of the logic, which greatly simplifies setup in the actors. I understand that one downside here is that my standalone scripts are pulling in a lot of references, which I was mostly avoiding with the interface/event approach.

Anyone else tried something like this?

[dark drum]

It sounds like you're starting to understand a core concept for making scalable gameplay systems.

[random vine]

How can I check if I'm playing in Editor/Game/Stanalone in blueprints?

[frosty heron]

⁨```cpp
/** Returns whether script is executing within the editor. */
bool IsPlayInEditor() const;

/** Returns whether script is executing within a preview window */
bool IsPlayInPreview() const;

/** Returns whether script is executing within a mobile preview window */
bool IsPlayInMobilePreview() const;

/** Returns whether script is executing within a vulkan preview window */
bool IsPlayInVulkanPreview() const;

/** Returns true if this world is any kind of game world (including PIE worlds) */
bool IsGameWorld() const;

/** Returns true if this world is any kind of editor world (including editor preview worlds) */
bool IsEditorWorld() const;

/** The type of world this is. Describes the context in which it is being used (Editor, Game, Preview etc.) */
TEnumAsByteEWorldType::Type WorldType;

None seems to be bp exposed.

would be a 2 mins job if you convert your project to c++

just make a blueprint function library that call this func

[full badge]

create a macro like this

[glass blade]

I loop over a simple array that has 2 members: 1,1 and print the value on loop body. Shouldn't it print: 1,1? Rn it prints just: 1

upon checking the length of the array its 2

[lunar sleet]

Why would it print 1,1 when your value is 1

[glass blade]

cus the array has 2 members

[lunar sleet]

The print doesn’t know that, you’re inside the loop. You’re not going to be able to see each print happen separately, the loop happens in one tick so it’ll just overwrite

[frosty heron]

show code.

[glass blade]

if i had different values, say 1,2 would it print seperately?

[lunar sleet]

Depends how you’ve set up your code, like Cold said

[glass blade]

imagine if the array element would be printed

the imaginary array has 2 members: 1,2

[lunar sleet]

Can’t really see where you’re pulling your data from tho

[glass blade]

why would that matter tho

[lunar sleet]

You’re not printing the elements or anything, so no idea what you’re printing rn

[glass blade]

its just an array with 2 members

1 and 2

[frosty heron]

Can you just show the actual code where u print the array content?

because you are not showing that from the picture.

[lunar sleet]

Lol bro

[frosty heron]

imagining what you actually imagine is actually difficult / impossible.

[lunar sleet]

Is this a privacy thing? You think someone will steal your print code? 🤣

[glass blade]

no, its simply irrelevant

[lunar sleet]

The reason it matters is because most of the time these issues are user error

[glass blade]

its a simple array with 2 members

lmfao

why does it matter ?

[lunar sleet]

So if you just show us half the picture it’s very possible that you fucked up somewhere and we can’t really imagine what is actually going on

[frosty heron]

If an array has 2 member, 1, 1.
And you loop over it and print on each member, then you will get Print string : 1 Print String 1.

if you don't get the expected result then it's deffinitly user mistake.

and we can't even try to spot that unless you show your code.

[glass blade]

what user mistake?

[frosty heron]

your code that you put together.

[lunar sleet]

Can’t tell when your code is not present lol

[glass blade]

wait so

one of you is saying it will overwrite

the other one is saying it will print 2 members

[lunar sleet]

If your print was outside the loop yes

[frosty heron]

if you not showing your code then I can't help you.

not here for being right or wrong

if you want help don't make it difficult.

[lunar sleet]

Ime the more stubborn people are when asking for help, the less they will progress

[glass blade]

no, im just trying to diagnose, i dont care about right or wrong here ty

[frosty heron]

then show your code where you print those values, so we can at least try to diagnose the error.

but it's been like a page long and still the code that is apparently "failing" is not shown.

feels like a UN meeting at this point.

[lunar sleet]

Never thought I’d spend 10mins on a print diagnosis lol

Usually that’s the way you debug an error

[spark steppe]

i feel like wants to print string nodes called in sequence, to be combined

which won't happen

use append or anything else to build a string if you want it in one

[lunar sleet]

No idea, one of those noodles is an int and the other a float, for all I know he’s trying to print an index and its value

[spark steppe]

or just

[glass blade]

what

no, i dont want that

[spark steppe]

THEN EXPLAIN YOUR FUCKING ISSUE

[white parrot]

Then imagine your code works correctly.

[spark steppe]

it does, based on what we've seen and know

[glass blade]

thats the first thing i did

the array that im looping over has 2 members

[spark steppe]

new messages are ON TOP

so it pushes old ones down

leading to

1
0

[frosty heron]

https://media.discordapp.net/attachments/221798862938046464/1467176508916236420/image.png?ex=697f6e1a&is=697e1c9a&hm=27498d33eba4dfc16d4fb79bab963b85bf286d32362125ac9e431aba06289f35&=&format=webp&quality=lossless&width=3053&height=1824

⁨```
50
90

[glass blade]

it just prints
1

[frosty heron]

jesus

anything but showing how you print it I guess.

[white parrot]

Why not just debug and see the array on runtime..

[spark steppe]

yea because god knows what your input data is

as we still DONT have code

[frosty heron]

like he is showing this, that's soo shuss already.

honestly if you debating over showing code next, I think you are just trolling at this point.

[glass blade]

debug shows 2 members, 1, 1

again, length of the array is 2

but it only prints 1 member

[frosty heron]

skill issue

[lofty rapids]

if i have windows 10

does that mean it won't work on 11 ?

if i package my game

[spark steppe]

i would ask that in another channel

[lofty rapids]

your right probably #packaging

[spark steppe]

more like #ue5-general (imho, gut feeling)

[lofty rapids]

oh ok

[frosty heron]

Should work on all windows but you don't really need to care about vista or below tbf.

[lofty rapids]

i'm just thinking because someone tried my game it didnt work on 11 they had to use compatability

[white parrot]

So if debug shows 1,1 then there's no issue at all.
You're probably printing it on the same key so it replaces one another.

[frosty heron]

so it's still work because there's backward compability.

[lofty rapids]

you have to select it, thas the only downfall

[frosty heron]

10 or 11 shouldn't have that issue though imo.

but just guessing at this point.

[lofty rapids]

lol don't imagine, plug it in and show what it prints

[glass blade]

it literally prints : 1

[lofty rapids]

if you have two elements

and it only prints one

your doing something wrong

show the code

not imaginary

[white parrot]

He never shows code, not the first time.

[lofty rapids]

computers workerr like clockwork

tbh

although engines do have bugs sometimes

most often its user error

like a foreach does exact that

foreach element

this doesn't suddenly change

you could however have changed teh macro

so it works fkd

if it truly doesn't properly work, double click the foreach and show the macro

[lofty rapids]

its time wasted with no code mostly guessing, i like guessing sometimes keeps things mysterious

[lunar sleet]

It’d be the 5th time we said show the actual code rather than showing us print nodes with noodles coming out of nowhere. I don’t think we’ll make much progress on this lol

[lofty rapids]

imaginary code can do anything

the only thing i can think of is they fkd up the macros if what they say is actually happening

because computers don't work like that, unless the editor has a bug which does happen

but it's like last thing to think about as a reason

or maybe they have a delay somewhere idk but ig its useless anyway lol

or possible one member is empty, and its throwing an error lol i'm actually concerned

i like to solve things

[lofty rapids]

definately what i would do for sure

it does require a bit of c++ knowledge

but you can get the framework for the files online pretty easy

and just work with untill it works lol

i made a visual scripting language, its a lot like blueprints lol

[lunar sleet]

I wouldn’t be lol

But yeah I understand the problem solving itch 😅

[lofty rapids]

i just wonder why tf it would do that, but then i also wonder if they are even serious

seems like a no on that

[glass blade]

👏

[lofty rapids]

is this success, fail ?

is it working ?

idk lol

[lofty rapids]

so it works ?

[glass blade]

hold on

[shut blaze]

Alright at this point I am a bit lost. I want the puzzle to only update when a change happens,

1. But idk how to do this without having an infinite loop.
2. Also I had problems in the 3rd screenshot, with the last hit actor, wanted to power down when a trace leaves a receiver. Didn't work out
   Green face: Caster (Shots a trace/laser)
   Red face: Receives a trace and has to update the actor
   Faces are Enums I can switch them to anything.
   Hope the screenshots help.

[lofty rapids]

tldr, whats the problem ?

[shut blaze]

Not really sure how to implement it :/

[lofty rapids]

ok so you have not started and theres no real errors ?

hmm

[shut blaze]

no errors
however I wish I had errors in this situation

apart from sometimes getting inf loops

I ended up deleting and restarting now my brain quit on me

[lofty rapids]

so your saying your getting infinite loops

hmm let me see what i can see

[shut blaze]

well not now (not anymore)

from the 8th screenshot it's not even called to fire

[lofty rapids]

hmm idk

what your trying to do in general ?

i might have an idea of how i would od it

[lofty rapids]

oh ok

lol

[shut blaze]

I'll find a screenshot from when it worked

"worked"

[lofty rapids]

i see so your doing like a power blocks kind of thing here ?

where the power flows through

[shut blaze]

yeah

[lofty rapids]

i don't see the logic

[shut blaze]

yeah

[lofty rapids]

is it out blue in purple ?

or red, or whatever pink it is

[shut blaze]

I don't get what you mean

[lofty rapids]

what is going on in this image

is what i'm asking

[shut blaze]

Green traces a line (and the niagara particle beam has a start and finish)
Pink receives: Needs to update the actor (power it up) (or down if no beam is on it anymore)
Wall: Does nothing

Null: like the wall but no mesh

[lofty rapids]

ok so the green/blue is the out

and it has to hit a pink to fire up a node ?

a simple trace should suffice

[shut blaze]

correct

[lofty rapids]

i would just trace out from the pink

and if it hits an aqua

fire up self

[shut blaze]

huh?

[lofty rapids]

ig you could also use an interface

[shut blaze]

it's a mesh component and an actor

no need

[lofty rapids]

ok so when you hit it with the trace tho

how do you turn it on ?

[shut blaze]

for now, simplest way is call event in actor + bool IsPowered? set to true

[lofty rapids]

so you need to cast ?

[shut blaze]

sure

2 way refference

[lofty rapids]

right well i would use an interface instead

like shoot the trace, hit the thing, call an active function

which you implement on the block

which turn ons and shoots

and keeps going

[last peak]

2 way ref?

Thats a circular cast

[shut blaze]

both actors know about each other

[last peak]

will throw an error when you build it

[lofty rapids]

^.^ i would do this

this is more of an event kind of approach in theory rather then loops and infinites

[shut blaze]

I mean yeah, that is what I was doing before deleting
but got stuck on infinite loops

[lofty rapids]

there should not be an infinite loop with this way

because there is no loop

you shoot out hit active, and then that shoots hits activates

its chaining

[last peak]

its probably because your endlessly calling a function

[lofty rapids]

instead of looping everything and checking all the shit all the time

its much more efficient

[last peak]

actor 1 functionA at the end of function a you call functionb and at the end of functionb you call a again

[shut blaze]

what about this scenario, will cause an inf loop because one updates the other and so on

[lofty rapids]

when you hit one, if its already activated stop it

problem solved

[last peak]

You have 4 cubes

[shut blaze]

hmmm

fair

[lofty rapids]

basically chain untill you don't have a hit or its already activated

[last peak]

1 - 2
I I
4 - 3

Thats a loop

[lofty rapids]

there might be edge cases but i can't think of any quickly

[shut blaze]

Oh yeah fair, that makes sense actually

[lofty rapids]

it will scale well also imo

the reason i would use an interface ...

becasue its esier to implement different kinds of blocks

lets say one when activated shoots out a different color because it does something else for some odd fkn reason

then you just alter the function in that block, done

you don't need to add a cast to a new kind of block and impliment a new function

what i would do is have a parent block

and just create a bunch of children

[shut blaze]

yeah that makes sense

[lofty rapids]

you could have four ways, three ways, have it your way

np

[shut blaze]

alr werks nice, gonna scale it up with Ints and Interfaces 🥳
thx

Question
Collision boxes don't run on tick to check if someone interacted with it, yes?
Say something is blocking the way of the laser. How would I implement this so it updates.

[spark steppe]

they are added to the physics scene, and should cause events, regardless of tick

[shut blaze]

cause events? physics scene?

aha

[lost wolf]

peak ai

[shut blaze]

Begin Overlap,
hmmm only way I see doing this
is take last updated trace start and end
have a collision box "find look at location" then scale it on the Z axis so that it matches start and end positions
On begin/end overlap: Update the trace of the caster again

my ah should really learn C++

[little moat]

What could I use as a manager?

[glass blade]

what does this have to do with c+

ur just describing a sequence of events

wether its c+ blueprints or minecraft redstone doesnt rreally matter tbh

[shut blaze]

Idk maybe something like a collision line
Instead of a box
Coz unreal doesn't seem to have that built in
Or maybe just set the collision box Scale to XY =0

Iduno

[glass blade]

line trace

or what do you mean collision line

[shut blaze]

Based on the context of my use
I dont wanna line trace on tick

[glass blade]

why are you on tick

[shut blaze]

???

[shut blaze]

Collision box but line

If something where to update it
My puzzle would need to trace a line
But if an actor is not in the middle of the box and the line traces then it's useless
Buuuut I could use a box trace instead and no need for a line collision thing that I just invented in my head rn

https://tenor.com/view/morning-morning-coffee-morning-cat-coffee-cat-bad-hair-cat-gif-14075918411085173951

[glass blade]

wait why isnt a regular collision box good for you?

that has al kinds of overlap events and whatnot

[shut blaze]

It might be
But it needs to stretch depending on the trace start and end

[white parrot]

There's no other choice usually, you can lower the tick interval.. in C++ you would get better performance overall though.

[shut blaze]

Hmmm
Nah I am going all in on performance

[white parrot]

I mean, instead of calling it on Tick(), you would call it on a Timer set to 0.1s instead of every frame.

[shut blaze]

Nah
I only want to update when a change happens.

No need for constant checks

[white parrot]

So it doesn't even need to be on Tick

[shut blaze]

Correct

If it were
It would start to lag if I had like 100+ actors with tick enabled (+code)

[glass blade]

well unless you reduce tick rate of the actor

[shut blaze]

.

Decided the solution anyway
Box trace instead of line
Might be better anyway

And have a collision box that sits in the backround on last update

[white parrot]

What's the use case

[shut blaze]

Box trace XY = Collision XY (scale)
If it were line ans boz collision
On begin overlap, the trace can miss the actor that entered the box collision

Makes sense?

[white parrot]

Who traces the actor? the actor is the player?

[glass blade]

i dont get it personally

[shut blaze]

For reference

If something is in the box collision
But doesnt hit the trace that was called, why would I call trace in the first place
So use box trace

[glass blade]

u wanna react to when a beam hits the box?

[shut blaze]

YES

[glass blade]

overlap on collixion box

[shut blaze]

Correct

Alr enough talk

[white parrot]

So Sphere/Box overlap will do

[glass blade]

https://tenor.com/view/crazycelebration-celebration-crazy-surprised-who-wants-to-be-a-millionaire-gif-26934168

me rn:

[shut blaze]

Maybe just box
Sphere unoticeably more expensive

[white parrot]

Well a sphere in the same diameter as the box's width/height would be less expensive since it has less overall volume, but i guess it would be negligible.

[shut blaze]

I am talking about number of faces to render

Both work anyway

[crimson briar]

wellactually.meme in terms of collision shapes spheres are cheaper than boxes. Because they are not rendered - the collision check is done with math. A sphere is only two numbers - a center and a distance from it. While a check against a box needs more points to determine the collison

[shut blaze]

oh, good to know

that is actually smart, unless the trace spheres were coded "badly" in the engine
idk can't check, I'll trust you lol

[mental trellis]

I suspect the code is pretty well rounded.

[shut blaze]

all we can do is just hope it's good
(I see what you did there lol)

[mental trellis]

Unlike the flat earth theory.

[last peak]

its not a theory its a fact

here

https://giphy.com/gifs/PRETTYDAMNGREAT-moon-tao-revivo-XEDgcRkFGyTKgdJD9t

thats the proof

[shut blaze]

[last peak]

The elite doesnt want you to know

[mental trellis]

What happens when you fall off the edge?!

[shut blaze]

you fall

[last peak]

you float into space

[mental trellis]

Why isn't space flat?!

[shut blaze]

why isn't the sun flat?

broooo

[last peak]

What do you mean? it is flat!

[shut blaze]

if the sun if flat, does it mean it always is pointing at us?

[last peak]

the sun is just a light installed by the elite

[mental trellis]

We're living in a 2d universe. It's made in Paper2D!

[last peak]

https://giphy.com/gifs/ghr-jump-jG5uIKBfJyouY

[mental trellis]

https://tenor.com/view/flat-flat-earth-funny-meme-dinosaur-gif-8201177651879106722

[shut blaze]

https://tenor.com/view/kumiko-oumae-hibike-euphonium-hibike-euphonium-gif-26492718

[last peak]

Connect the dots

the elite is working together with the annunaki

to keep us enslaved

[shut blaze]

I wanted to send a gif but I don't wanna get banned

[last peak]

lmfao what is the gif

https://giphy.com/gifs/H99r2HtnYs492

[mental trellis]

Lol. I think we've maybe gone a bit too far off topic.

So how about them nodes?

[shut blaze]

mmm spaghetti

[last peak]

i see how it is

Daekesh is one of them

[shut blaze]

D:

[last peak]

Hes afraid of the truth

[shut blaze]

honestly it's weirdly quiet on this chanell today

[mental trellis]

https://tenor.com/view/now-you-know-my-terrible-secret-butters-stotch-stan-marsh-south-park-s6e16-gif-22104746

[shut blaze]

nobody is asking for any problem fixes or, iduno

[knotty falcon]

Hey guys, im about to start on very simple enemy drone AI that only flies on the y and Z axis (so basically 2D). Any advice or terms i can lookup on where to start? I cant decide if i shoudl make an actor and use the character movement component or just make it a pawn. any advice is helpful, i dont need you to walk me through the whole thing, just help nudge me in the right direction

[lethal pollen]

I want to open a chest when the player is in front of it and press the interaction key. I've done this:

But the player can interact with it from all of its four sides. How can I do it only when the player is in front of it?

Thank you!

[knotty falcon]

Instead of a line trace, why do t you make the chest have a collision zone where you want the player to interact

[lethal pollen]

Because I love line traces.

[knotty falcon]

Then you can use the on collision begin and on collision end to toggle a Boolean like “IsInZone”

Haha that’s fair.

[lethal pollen]

I only want to know if it is possible to do it with line traces or not.

[knotty falcon]

Have a system that checks for the player world coordinates against the cube coordinate and require the x and y coordinate be within a certain number

[last peak]

ye it is

[white parrot]

Check the chest's forward vector at a 90 angle in a cone

[lethal pollen]

I don't understand that, sorry.

[knotty falcon]

Ask ChatGPT “how to check an actors forward vector at a 90 degree angle in a cone on unreal engine”

You have all the right terms to research now though

[lethal pollen]

I hate ChatGPT

[knotty falcon]

That’s too bad. It’s a great resource for a solo dev

[lethal pollen]

Well, I'll search about what is a 90 angle in a cone

[mental trellis]

Sounds far too simple for a character.

[knotty falcon]

You don’t have to use it to vibe code, but when you have enough info and knowledge to steer it in the right direction it really helps

[knotty falcon]

Ok agreed. I just want to make sure it feels really floaty heavily effected by getting bumped and stuff like that

[last peak]

some ppl hate it out of principle

[knotty falcon]

Kind of like the Arc in arc raiders but way more simple

[knotty falcon]

Which is fine. But it is a great resource for solo devs

[last peak]

not so sure about that ...

guess for very basic things and math its good

[white parrot]

Adjust the angle to your liking obviously.

[knotty falcon]

Okay. Well I Disagree but not here to debate

[last peak]

It is straight up wrong for 50% of the time

[mental trellis]

Ai is great for math until it hallucinates that 3+4=apples.

[last peak]

and if you dont know its telling you bs it will lead you down very long rabbit holes

[knotty falcon]

You have to know enough about the engine or it will gaslight you

[lethal pollen]

Thanks a lot!

[knotty falcon]

And it has its flaws. I’m not arguing that it’s perfect, I’m saying that it’s a resource and one that has been extremely helpful for me personally

[white parrot]

The more you know, the less helpful it is 🙃

[mental trellis]

Absolutely it's helpful. But it's a help you have to take with a pinch of salt.

[knotty falcon]

Word , well it’s extremely helpful for me

any tips on making the drone hover? should i just purley use impulse so it feels a little goofy and floaty?

[white parrot]

sin function ( sine wave) / float curve

[knotty falcon]

is this to kind of make it hover up and down when moving? Im just trying to think of what would actually propel it

[white parrot]

Never done this personally, but i assume it would a combination of add force and something continuous like the sin function.

[knotty falcon]

Ok thank you i really appreciate it. I will look into this

[last peak]

Are you sure you want to work with force?

in my experience thats incredibly annoying

[knotty falcon]

im not, i really have no idea. it just need to feel very floaty especially when it gets bumped and it needs to always move towards possesed character and avoid some obstacles. And it only moves on the Z and Y axis

[last peak]

what about animations ?

you could just create a float animation that you play on loop when the drone is idle

[knotty falcon]

would just have a simple animation that makes the props spin

[white parrot]

Animations could work, with a float curve / blendspace / mix of the two

Idle floating animation.

[knotty falcon]

it will always slowly be pursuing the character from the moment its spawned

[white parrot]

It can't float and move towards a goal at the same time, it would be moving at the shortest distance possible from point A to B, so it wouldn't 'float' just hover straight to the goal.

[knotty falcon]

if the player bumps into it, would there be a way to activate physics so it drifts? kind of like a hockey puck on ice

[last peak]

that small feature will be a lot of work

[knotty falcon]

ah bummer 🥺

[narrow kite]

Custom blueprint AI. This evade has been shifted into more of a Street Fighter system that does cheat to some extent for better results. Street Fighter AI essentially reads the player input so it can react. That helps it follow the combat instead of just randomly performing actions.

When done with straight blueprints I think it will be easier to have all options available instead of tying in a behavior tree logic. When combined with random shield blocking/evasion I think this will give a leader mob a natural basic AI that isn't just rush the opponent like a standard ARPG.

[lofty rapids]

line trace on tick is a non issue really are you looking to trace evry box or what are you trying to do

[golden pewter]

i cant build ue5 i need help

been stuck on it for days

[knotty falcon]

So what if i use a line trace + spring to basically make a "suspension" system that simulates the hover. The distance from the ground will be determined by the possessed players Z location. Then it would juse use add force to propel it left and right

[little pulsar]

how do you detect if the player is looking down with the camera i want to do that so the player will use a different attack animation if doing that

[knotty falcon]

If camera rotation > than a certain amount, set a bool to true. If that bool is true, do the other attack

[frosty heron]

close error list, look at build output.

[knotty falcon]

@white parrot do you think that this would work?

[hardy merlin]

Show us the Output log instead of the error log.

[pine carbon]

This is driving me insane because it's using the dang template project setup, but for the everloving life of me I cannot figure out why it does this. What is causing the inconsistent offset in my traces? I just want it to spawn at the center of where I'm looking, and nothing I have tried has managed to accomplish that. It's kinda hard to understand when you aren't controlling it, but it feels awful to control.

The traces are just generated by this. Everything else responsible for the camera is default Unreal First Person stuff.

[frosty heron]

Not right.

[pine carbon]

Well yeah, I figured that out.

[frosty heron]

End point is camera loc + (forward vector * distance)

[pine carbon]

. . . oh gosh danggit.

I might need SLEEP. Thank you.

[frosty heron]

👍

[pliant musk]

Hey everyone.I'm trying to set the static mesh of a dynamically created spline mesh component from within an actor component; does anyone have some advice as it doesn't seem to work

[maiden wadi]

You should just need to call SetStaticMesh on the SplineMeshComponent. can you show what you're doing that isn't working?

[pliant musk]

Strangely, I was only able to get it to work by creating a new actor with a Spline Component and calling the creation of the Spline Mesh Components from within that; setting static mesh from an actor component wasn't working

[timber wind]

Do accessed none / not valid errors actually cause crashes in packaged builds ?

[crimson briar]

I think some more experienced people mentioned that they shouldn't but I don't know how to find this conversation, it was weeks ago.
Still a bad idea to not guard invalid references.

[frosty heron]

Depends, if you always expect it to be valid then crash help with debugging.

Silent bug is the worse kind of bug.

[maiden wadi]

Generally speaking if it doesn't crash your editor, it won't crash a packaged game.

[storm solar]

I have a widget menu that I call with diffrent stack menus like equipment and skills. I use a different mapping context for this menu called imc menu. This allows for special inputs on my widget menu outside of accept and cancel, like next page and menu toggle. My issue is that, after I open a submenu more than once, the IMC_Menu enhanced input actions will not fire again on that submenu widget.
Is this an issue with widgets in general and I should have these input actions fire on the character actor and not the widgets?

[warped wagon]

I’ve implemented Unreal Engine’s new Motion Matching system on my character, using exactly the same setup and animations as in the official examples.

However, I’m running into a strange issue: if my character is not facing the world X axis, it won’t enter sprint mode. I can only sprint when running in a single direction.

I haven’t been able to figure out what’s causing this. Any ideas on what I might be missing?

[idle crescent]

Can I raise the amount before UE5 thinks I'm trying to do an infinite loop? It is merely a large sum of data.

[crimson briar]

You can in project settings

But if you are running into it - you should probably move the loop to C++

[idle crescent]

Aahhhh. I thought so.

It won't trigger in C++, will it? Could it be faster/more performant in C++?

The infinite loop false flag, I mean.

[crimson briar]

Not sure if C++ has the same guardrail tbh. But overhead for loops in BP grows substantially for big loops

[idle crescent]

Yeah. Could be a good idea then.

[orchid robin]

Hello, i am working on a ressource management game where i have build a game loop of some units gathering resources from a node and bringing it to a base. Right now Ive been storing the resource on the unit, and then on the base it self, but it doesnt feel very scaleable. Chatgpt tells me to use an actor and a Google search suggests using My game mode bp or a game instance. What would be best. I want to store multiple resources and data that the player can see on My UI.

[crimson briar]

Make an inventory component

By inventory I don't mean UI, just a general reusable component to allow other actors to hold something inside

Then you can easly add/remove this component to actors that need to carry something. And other actors can ealsy access add/remove funcitons form the component

But if you are asking more generally if the NPCs themselves should be holding stuff - it depends on the design and game. I don't think there is anything wrong with it personally. Especially if the resources could be dropped/destroyed when the npc is holding them.
In case of a base, if you will always have one - fine as well. But some rts games have missions without bases, where you still can get resources - in this case it could be better to store it in another place - like an invisible actor, gamemodes, or the best solution: a subsystem

[maiden wadi]

+1 for inventory component.

If your doing pure logistics it can go on the building/unit carrying the item.

If you're doing a Starcraftesque style, it can go on the unit/Playerstate. That way when they take stuff back to base it can be put on the playerstate as a global inventory for that player.

[next hollow]

• 1 also
  Thats how I did my stuff in the RTS I started working on, then realized I was seriously out of my depth for actually completing the game.

My inventory was as basic as an int, and like gameplay tag for wtf is it.

[orchid robin]

Im already using inventory component on My units and the bases, but if i have 2 units collecting resources on 2 different bases, i still want that data to be stored some where, so i have the total amount. Sorry if im not explaining it very good, im new at this 😁

[crimson briar]

Then yeah, you would need additional layer on top, a manager of some sort. I would go with a single actor in the level or a subsystem.
Unless you are doing multiplayer, then game state or player state

[orchid robin]

thank you so much 🙂 ill give it a shot!

[next hollow]

Yeah, for me.
I just gave the player state an inventory component.
It also made getting current resources easy, for resource use.

[eternal marsh]

Can I change the velocity vector of a projectile component mid flight? I am building a ricochet system and everything looks correct but the bullet stops. I am doing a line trace and my ricochet vector looks correct. I thought maybe the projectile is far enough in the collision it can’t escape on hit but even if I offset it on impact and then add velocity it is not moving. Thanks!

[harsh bane]

send a picture of the projectile component list

[midnight night]

guys, for cars, can we set the Set Global Time Dilation to exclude the player? slow mo for everything except the players car? or make the car faster so it looks like it's "normal" ?

[midnight night]

does this work for cars? I think some things that work for characters, don't work for cars :/

[harsh bane]

Ive not done it with cars but you can do the same thing and set the actor time dilation for the car to be the 1/world dilation

the shot I posted will make the player move as if the world is slow but they're normal speed

[midnight night]

okay, I will try it, thanks! I hope it works, I really hope so! 🙏🏻

[wispy mulch]

Hey, currently working on a variant of the combat template, for some reason enemies are sinking down into the ground upon initiating attack task. video here:

there are a bunch of other things I want to do with this project, but I wanna start by fixing some bugs

• this is 5.6 third person combat template that I added a few things on the player character but did not touch enemies
• all I did was adjust the enemy spawner to spawn multiple enemies at once

[harsh bane]

looks like its just the skeleton/mesh falling through as the healthbar isnt jupping up and down

is the mesh simulating physics?

root motion issue possibly as well not sure if its on or off

[wispy mulch]

nope

[wispy mulch]

that's the most likely issue, though I don't think I touched it
lemme check on the attack and walk animations

for melee attacks

[harsh bane]

turn it off just as a test and see if it changes

[wispy mulch]

yeah no i checked off root motion for attack and walking animations, still the same issue

interesting

[harsh bane]

are they colliding with something attached to them

could see them getting pushed by a component then nav mesh brings them back into place

[wispy mulch]

yes that makes sense, I noticed just now that they sink down more as they get closer to the player

[harsh bane]

do those actors have any components set to block pawns/world dynamic

[wispy mulch]

character's sword is set to block all dynamic
character has a "focus range" set to overlap only pawn

yeah likely the sword is why

Ok I figured it out, overlap only pawn was the wrong collision channel for focus range

it was pushing the enemy down then snapping them back up and repeat

Now on to the next bug. My "focus on enemy" works mostly, but the focus doesn't release upon the enemy dying

[harsh bane]

nice that we got #1 fixed

what is focus on enemy ? targeting?

[wispy mulch]

yes

so

• character has a focus range, which uniquely adds enemies into an array called enemies in focus range
• upon input:
• if there are no enemies within range, then do nothing
• if there are more than one enemies within range, calculate the closest enemy within range and focus on that target
• focusing for now just involves camera rotating around that target

I'm trying to call a delegate on enemy death but it isn't firing for whatever reason

[harsh bane]

I'd put another breakpoint in the enemy class when it should be calling the event see what happening there

you could also have the focus check if the actor its spitting out has a gameplay tag "dead" or has some variable saying its dead, or AI controller that says its dead, and remove that actor from the array and check the next ebst

couple ways to do it

[proper tulip]

My aim down sight code. Just with a socket on my rifle mesh. It’s zooming way in when I right mouse button, like across the map

[harsh bane]

probably just a math issue

print out the relative location you're setting and see how it compares to where you want it to go

is it not as simple as lerping from the default position to the socket location? why the inverse transform and capsule component logic

[rough sable]

This is so easy to get wrong 😂 just wanted to share my shame and remind everyone that pure nodes run again for every execution pin.

[lunar sleet]

We have a pin for that hehe

[proper tulip]

Yeah I just a hit a wall with mine I have to give up for the night

[lunar sleet]

Sometimes a break is all it takes to figure it out

[marble tusk]

And remind people that the solution in the latest few engine versions is to right click the random node, and add execution pins (which I believe should be at the very bottom of the right click menu)

[spiral meadow]

Any idea how to fix this, when it set's to Lit then it shw's black and when it set's to Unlit, it shows fine

[frosty heron]

no lighting

[spiral meadow]

I can't figured it out how to fixed this up

This is it with every bp i have

[tropic peak]

Is there a way to extract all entries from an enum? LLM's tell me to use a "Get All Names from Enumeration" node, but it's simply not there.

[lethal pollen]

I need an Event Dispatcher with one parameter? Is it possible?

Thanks!

[lethal pollen]

I wouldn't have seen it in a million years

[normal raft]

can some one see why this logic isnt working.. it never stops moving for some reason

[crimson briar]

You can loop on enum type

[tropic peak]

yeah just found that one, will give it a try. thank you

[marble tusk]

My guess from a quick glance is that the destination location vector might always be more than 100 units from where the actor location vector can be. Like, maybe it's a location on the ground vs location at the center of the actor or something.

If this is like a ship in water thing where the height doesn't matter, then try zeroing the z in the vector before getting the vector length

[normal raft]

thanks that was basically exactly the problem

top float in range 🙈

that and RoamRadius was to tight

[spiral meadow]

Help bros

[torpid acorn]

Qesiton How owuld i reset the input after the charatcer stops flying fastI would like to the switch so it automatically becomes 2

[crimson briar]

I don't have the engine now but there is an option somewhere to change the preview scene (I think it is called that), colors and lighting. Try googling that. Maybe somehow you changed these options to something without light.

[crimson briar]

I'm not sure I follow. What do you mean it "should automatically become 2"

[spiral meadow]

Okay, i will try it there

[normal raft]

i am wondering how to make the ship auto level out?

if i connect roll it goes upside down so not sure whats the issue there

on my other physics pawn all the axis are different .. so when i apply torque it rolls it doesnt have a roll per say because that would be tiltling forward and backward

if that makes sense 😄

and pitch does the same job as rolling for forward/backward in the gravity

there i had to clean that up a bit for you guys

i know i probably want to move the "leveling out" to a BTT task or something

it works fine it patrols to 10 locations and returns but just with the vehicle rolled along its wing span like that

[dense hinge]

Hiya. Is there a more condensed way or writing this in BP? I feel like there should be, but with all the different permutations between bools, I'm not sure I know of it

[normal raft]

collapse to function

then you can modify it to only have 2 input all the way through

[stable birch]

you only need to check 'up-trace' and 'down-trace' in the second two branches

As the previous 'up-trace && down-trace' already ensure those two values will be different (or both not true)

[dense hinge]

https://tenor.com/view/paul-allen-willem-dafoe-patrick-bateman-american-psycho-chad-uv-uk-ondi-gif-16390925646186067564

[normal raft]

yep such logic doesnt need all the additional gets/inputs

[dense hinge]

Thanks a lot for clearing that up. I was staring at that for 5 mins now knowing something was wrong but couldn't put my finger on it

[stable birch]

Actually isn't because 'IsClimbing' is really just mapped to 'UpTrace' the boolean logic is...
if (UpTrace) -> Climb
else if (DownTrace) -> Swing
else -> Stop

[last peak]

Thats still pretty tame

its annoying me so hardcore XD

[dense hinge]

There's also a check if it can both climb or swing, where I need to add in another location check for climbing or swinging

[dark drum]

An alternative is this.

0 = Both false
1 = Only first one true
2 = Only second one true
3 = Both true.

[dense hinge]

That looks like it would be best served in afunction, like @normal raft showed

[last peak]

its a corner check for a grid

[dense hinge]

Now that's what I was looking for. So neat and tidy, thanks a lot!

[last peak]

I could put it in a function but at this point my code already looks like this

https://giphy.com/gifs/sad-happy-stacking-dolls-tea-qTAeUFo7SLim3fXl2U

[normal raft]

Lol

[dark drum]

If you need a 3rd bool you can just add to it. Only really useful if you actually need most of the combinations.

[normal raft]

isnt there something about programming being like onions

[dark drum]

That they make you cry?

[normal raft]

😂

very few programs i know of are that clean that they arnt too many layers deep in logic and usually not that complex

[last peak]

Procedural Level gen turned out to be way more timeconsuming and complex than originally assumed

[dark drum]

Yea, procedural anything is like a blackhole... Just sucks all your time away.

[normal raft]

yep PCG chewed me hard

[last peak]

the very last thing i have to do now is spawn the rooms cleanly with correct walls

/Windows and doors

And all that just for a portfolio piece 😄

[normal raft]

PCG is weird though because when it spawns its shiz on sphereical worlds it managed to get the alignment perfect

and it dosnt even know about things like gravity

i did a work around for PCG so it will do 1 hemisphere then the next

[last peak]

oh you talking about aunreals pcg ?
ah come on that weakling crap

make your own 😄

https://giphy.com/gifs/foxadhd-fox-animation-domination-high-def-KpKayhnOiSw4o

[normal raft]

yeah lol i kind of figured we are better of with out for any thing other then sparse decoration

but yeah i never ever imagined i would get this far

[dense hinge]

4 months learning it and remaking a building generator 3 times because Unreal kept pushing updates to PCG making things better and cleaner. Yep, fully get it

[narrow pulsar]

Anyone knows how I can make my crosshair show while editing animation sequences?

its a texture so its not like i can just drop it into the world

and when editing sequences i'm not ingame so no HUD

[normal raft]

if theres a tag that can be set some where you should be able to do it

i have this thing that makes my mouse cursor change to a circle when it detects a interactable with a tag

[frosty heron]

animation sequence and texture?

can you visualize what you are seeing / want to do?

[narrow pulsar]

this is what I have rn

but I wanted to switch the white ball for the actual crosshair

[normal raft]

that looks a scene object to provide a relative reference

no need for it to be 3d object

just get umg on the case

only jks

[last peak]

What the heck is that?

How much code do you have in there ? wtf

[normal raft]

that is a sphereical gravity characters requirements for the planets/sky dome/interfaces for other parts of the game

[last peak]

you have like 200 functions in there lmfao

How long have you worked on that ?

yuck why are ppl using behaviour trees

i will never understand

[sick sky]

looking old ytb tuts that are themselves old

[normal raft]

Lol it might surprise you to know that SST's actually have the functionality to drop into a BTT

but yeah if you want Nav mesh

you do you

[last peak]

What the heck is a SST

It sounds like something youd want a doctor to check out

[normal raft]

i guess because you dont understand the entire AI hierarchy

but yeah write your own!? right?

[normal raft]

Lmao

keeping searching that ai wont cut it

[last peak]

Dunno cant even find something on google + ai

[normal raft]

wow you are not asking the correct questions then are ya

[cloud token]

Ai trash

Human brain usage better

[last peak]

True... a human brain can make up shit that doesnt even exist 😄
Hmm guess not so different from ai ^^

[cloud token]

If you gonna use ai then use unreal engine ai in editor or on there website

[normal raft]

⁨```
AI State Tree and Behavior Tree (BT) are both architectural patterns used to manage AI agent behavior, but they differ significantly in structure, design philosophy, and use cases.

⁨```
AI State Tree
An AI State Tree is a modern, hierarchical state management system that extends the concept of Finite State Machines (FSMs). It organizes AI behavior into a tree-like hierarchy of states, where each node represents a distinct state or sub-state. Unlike traditional FSMs, State Trees allow for better modularity, hierarchical nesting, and more intuitive state transitions. They are designed for complex, dynamic AI systems where state management must be both readable and performant.

⁨```
Key Features:
Reactivity: Can interrupt ongoing actions (via the Running status) when higher-priority behaviors emerge.
Modularity: Nodes can be reused across different trees; each subtree is independent and testable.
Hierarchical design: Supports deep nesting and reusable behavior libraries.
Evaluation: The entire tree is ticked (evaluated) at regular intervals, enabling real-time responsiveness.
Drawbacks: Can become unwieldy and hard to debug if not designed carefully; performance degrades with large, unoptimized trees.

[last peak]

Cant find a single time where sst was used for state tree

[normal raft]

Its a SUB STATE TREE

i am done with this

i have shit to do goodbye

[cloud token]

[frosty heron]

What's wrong with using BT?

I'm using one.

[last peak]

But besides that ive never seen this shorthand
Adding 2 layers of abstraction with state tree and bt is odd

[last peak]

Stupid blackboards has to be the worst way of sharing data in the engine

[narrow pulsar]

Why not, works pretty well for AI

[last peak]

And it adds a layer of abstraction

[last peak]

Why not work in a component and a state machine / state tree ?

[narrow pulsar]

less documentation, not as intuitive to learn and you can do fr the most part, everything you need with both

[last peak]

Not as intuitive ? o.O

[narrow pulsar]

to learn yes

[last peak]

I mean ... you create a component
You add your logic in there

it wont get any easier than that

[narrow pulsar]

i meant state trees

i work with them for combos and stuff but its still annoying for me

[last peak]

I feel like state trees are way more comfortable to work with than bts

[normal raft]

yep all true but if you have a basic little beahvior the tree the hyerachy allows the dropping down into the btt its not rocket science

[spark steppe]

i prefer behavior trees, tho i must admit that i haven't spent any meaningful time with state trees

only thing that bugs me sometimes is how it defines the order of operations by the location of the node on the graph...

but to be fair, i don't have any idea how to solve it better 😄

[torpid acorn]

want It to default to the 2 integer after flight has stopped I'd like tthat processs to loop .

like going stop start stop start

[modest monolith]

Hello, can someone help me change these niagara particles color to black? I'm clueless

[narrow sentinel]

Anyone know if theres a way to have my npc exist in memory but not be activly visiable or running any anim instance logic ?? Essentially i want it where my npc will still move around on the deck space station on whilst player may be on another deck

Obvs though the station decks player isnt on would be unloaded to conserve memory

[icy imp]

I am trying to set velocity and arc for a projectile. If I use Suggest Projectile with Custom Arc, it is too slow since it does not take a speed parameter.

[surreal shore]

How do I fix this? When I opened the material it turned black and if I add it to the terrain its black

[normal raft]

did you add a light source to the world

[surreal shore]

yeah, if you look in the content browser, it shows black...

[crimson briar]

It is possible, yes, but it depends how you want to do it.
Simple approach is to disable non-critical logic like runnign the ai tree or animation when the actor is too far or not visible on the screen.
Depending on the functionality another approach could be to despawn the actor and handle him through some manager that will keep watch when the actor is needed again and respawn him with some additional logic for time passed since despawning - but it is more involved, I wouldn't recommend it unless you really need it. Normally disabling tick logicv, animaiton logic and AI logic is enough. LOD's and culling handle not rendering the actor when it is far enough

[knotty falcon]

What are some stand out selling points this has vs blueprint assist? I tried to look at your website but it’s not functional on mobile

[narrow sentinel]

I was thinking of the first option tbf, but isnt pawn bound my gravity etc so they will just fall if theres nothing under them. I was wondering if there was a way around that so their still moving around but obvs theyd be floating a it were

[knotty falcon]

Ahh got it. Cool thanks! I’ll check it out

[queen dagger]

I have an issue thats really getting me confused, im making a mp game and currently i have a system that sorta works half the time and doesnt the other. Currently i have alobby that works that can select a level and the host and clients will go to said level

now when executing the server travel the host will not have any inputs working

[normal raft]

is there a reason you set it to surface?

[queen dagger]

and on top of that the save game profiles do not transmit the correct player names to the hud most of the times, sometimes it gets it right sometimes it doesnt

any ideas on how to start working on this issue would be greatly appreciated

[normal raft]

do you use a interface?

most ppl do lol

heh just seying

[queen dagger]

no

i am not to well versed in this stuff and am following online tutorials and for the most part its been decent\

this is the first hickup i just cant seem to figure out

[normal raft]

what is supposed to be "used with" make sure that its correctly enabled in the mat

if its black its probably some shiz like that

assuming its not a totally bullshit material in the first place

[crimson briar]

The capsule is enough to determine the movement and not fall down. Animations and even the skeletal mesh itself are not needed. There has to be something left tracking the position - either the actor itself with the capsule and movement, or you save the time of despawning and calculate what the actor did during the time it took to spawn it again.

[narrow sentinel]

put I thought pawns if theres nothing under them will just fall into the abys

I thought there was a way where they could still move around even when nothing is under them

[dark drum]

I'd imagine it would be extremely difficult, especially in a BP only project.

As you've said, the NPC's would just fall through the floor when the level is unloaded. Off the top of my head, you could however just move them to a holding area. (Out of sight) You can then pretty much disable the NPC's and add them to some sort of manager that moves vectors around.

The hardest part would be handling collision.

[faint pasture]

pawn or character? Pawn does no movement on its own.

[faint pasture]

Totally depends on what you mean by "move"

First off, are you using Character(comes with CharacterMovementComponent) or a naked Pawn?

[queen dagger]

so let me know if this is wrong but we have the player controllers that connect to the lobby and when that does happen when we migrate over to the new server each menu controller sends the client to the new map where we switch to a the in game controller

so the start button is this

which works

but the host spawns in with no controls where all clients do

[narrow sentinel]

chrcter sorry

[crimson briar]

Oh, you mean when the level the pawn is in is unloaded? Welp, that is a lot more complicated for sure

[narrow sentinel]

so the NPC would be spawned into the world so they won't tie to any level apart from persistent

[maiden wadi]

Did you add you mapping contexts in the level blueprints, or the pawn?

[maiden wadi]

This is your issue.

If you want to keep this in the Pawn. It needs to go on the client side possessed event.

The issue is at the moment that on the host your pawn spawns and runs it's beginplay before it's possession call. So it has no controller. On clients, their owning controller is set from replication before their beginplay is ran.

[icy imp]

Following up on projectiles. I have my projectile working with homing without an issue. I would like the projectile to have an arc during the flight and still be homing. Looking for suggestions.

[queen dagger]

what do you meane byu runs its begin play before poesseion call

is this an issue that can be fixed by having this be ran on onpossessed?

[last peak]

Why does he still have to be in memory ?

You can unload him and then simulate his movement

then respawn him according to the simulations position

[maiden wadi]

Beginplay runs when you spawn something.

To possess a pawn you have to spawn it.

You server does Spawn>Possess. And in between those your Beginplay runs after Spawn, before Possess. Which leads to your Pawn not having a Controller at beginplay.

So yeah you need to move this to the controller changed or possess function. Whichever it is that also runs on client. It'll tell you in the tooltips.

[queen dagger]

would this onposses be in the character pawn or in the controller

[narrow sentinel]

spose just thought if there was something already in UE to allow such a thing thats all

[maiden wadi]

There should be one in the Pawn for this.

[narrow sentinel]

if needed I'll despawn and respawn then when needed

[last peak]

It depends on how much perf you want to save and on how far your willing to go

Sometimes disabling animations and deactivating everything you can is enough
If you really want to squeeze out everything thats probably the most performant way to despawn

But even then the respawns can cause small hiccups

[dark drum]

Yea it can be a double edge sword sometimes.

[narrow sentinel]

i was thinking of another idea which was disable all the stuff not needed and move the NPC to a place where they can't be seen etc until their needed again and then have an NPC manager move them back to where I need them to be. Thatd prevent any stutters as I'm only moving them not going through fully respawning them

obvs when player fully leaves location they would need to be despawned

[dark drum]

I've gone down this route before with over 100 NPC's. When they were killed they just got disabled so I didn't have the overhead destroying and respawning them. (Pretty much NPC pooling for enemies)

[narrow sentinel]

so I'd be best doing what I've said above them

they'd all have Guids anyway to identify them so the right ones are moved back to where needed when needed

[last peak]

Ye thats pooling

But then you will still have some slight overhead for the running characters

Usually it doesnt matter all too much tho

[last peak]

you had 100 npc's ?

With pathfinding?

How was the performance

[dark drum]

With path finding yea. I was able to get around 60 fps on average. They didn't use BT's which probably helped. Fairly basic AI lol.

[last peak]

With the character movement comp ?

[dark drum]

Yea.

[last peak]

goddamn

My fps vanish into nirvana with 20+ npcs

[narrow sentinel]

i'm also guessing If I disable tick on the Actor all components within it will also have tick disabled as their parent has it disabled

[dark drum]

No, it's just for the actors own tick.

[narrow sentinel]

arr okay so I need to make sure I'm disabling tick on my static meshes I'm placing into the level

[dark drum]

I don't think static meshes tick anyway. (By default at least)

[narrow sentinel]

not sure theres a option to have it start with tick enabled

and also it's cause of how I'm building out my world the walls and falls are all their own actor to enable customisation later down the line rather then just placing raw static meshes into the world

[dark drum]

Yea, it was pretty bad to begin with. When I joined the project, I kept dipping below 30 fps. I had a good day with the profiler. 😅

[dark drum]

If there's no tick node in the event graph. (The gray ghost node can be ignored) Epic has it on the back end to ignore tick automatically.

[maiden wadi]

Not this one. This is server only. It has that little icon on it.

You're looking for ControllerChanged

[queen dagger]

however it seemed the last one with on possessed also did work in the short testing i did with it

[faint pasture]

Character is probably too heavy for this

You could probably bypass animation etc but the meat of it still has to exist

[narrow sentinel]

tbf if I need to I can always see how much memory it takes up with my current idea and go from there. There won't always be NPCs as well only some location will have them at varied scale

just thinking little bit ahead

[faint pasture]

You can also think about what they have to "do" in the background and simplify

Give an example, what is something they would be doing when out of sight?

[dark drum]

You could always look at doing a hybrid. So once the player get really far away, it just destroys the NPC. If it's only just out of range it just moves them to a safe place and disables some stuff. (So it can be quickly re enabled if they player comes back in range.)

[warm hare]

I have an issue where I have a level transission BP that basically creates a short loading screen before putting player in new map. The issue I am having is that this BP works fine in the separate map, but since I am using level streaming it seems to get stuck on the loading screen. Generally what causes this for the level transission to not work in sub levels, but will work in its own map?

[dark drum]

You'd need to show how you're handling it.

[warm hare]

First image is the level transition BP, the second image is the loading screen that it references.

[dark drum]

This isn't a loading screen. Just a delay before you load/open a level.

Also, are you referring to level streaming when you're talking about sublevels?

[warm hare]

yes, I am referring to level streaming. Which the majority of the map is that way until the very end which I encounter this. I don't know how to say it. But yes its a fancy delay before opening a new level

[proper tulip]

How do I get these all to flow. Basic idle with crouch , pitch for looking up and down, with an ads system for snapping the gun to center of screen via ADS socket

[warm hare]

I figured it out btw

[fading raptor]

Hello everybody, I've been trying to do something with Levels & Sub Levels in UE 5.5 and I have a problem. I have a blueprint of a Moon that must always be there for the puzzles in my game to work. So I need 1 moon per sub level but the problem is that I can't set variables with BPs placed in an unloaded level so I tried with the BP that handles loading & unloading to set the new value of MoonREF to the player on load but doesn't work either. So I'm trying to find a way to do just that, bc it'll be more modular if each puzzle has its moon and I can modify it depending on the room size etc. Does anyone has a solution ? Thx in advance !

[full badge]

try using soft references

[proper tulip]

I figured this out. When I aim down sight though my spine bend transform is getting cut off and my gun is slightly pointing to the left.

[fading raptor]

Finally to solve my problem I just created a new actor that on begin overlap sets the new moon ref to the player, it'll work for what I want to do for now

but thx I'll check that !

[queen dagger]

now with the movement imput solved im having issues with the names being updated on the hud, the only name i want is the one that i saved to the character

but its not updating correctly names get duped when i play 4 standalone varients

and it doesnt save the correct names to the correct players im pretty lost on why its doing that does anyone have a way to simplify this event?

[mild jacinth]

hey yall, I got a question about interfaces, hoping someone can clear it up for me -
lets say I have 1 parent widget, and 1 child widget. parent has interface event that returns a set of pointers (an array) implemented. the child widget gets the interface inherited but does the functionality also get inherited? (assume that the interface message call is targeting the child, not the parent) because in child bp it shows nothing returned

thanks in advance if anyone knows the answer and can help

[crimson briar]

It should inherit the interface implementation unless you override it again. Buuut I'm not sure if it is the same with widgets. Are they even supported for inheritance?

[gentle urchin]

if it doesnt override parent implementation I believe it would inherit

Widgets do support inheritance

not that i often have the need for it but that's beside the point 😛

[mild jacinth]

its empty by default in the child BP, but im also wondering about c++ because in c++ you have implementation functions for both parent and child, so idk really which one gets targeted

BP is empty thatswhy its confusing me a lot

[gentle urchin]

no overrides?

and parent type returns it fine ?

aaand you've actually got the correct parent/child ?

[mild jacinth]

parent and child

[gentle urchin]

seems like an override 🙂

[mild jacinth]

im targeting the child with the interface message

[gentle urchin]

worst case you can right click the "GetListOfContainers" -> Add CallToParent

that's probably what you would do aswell

that way you grab the parent contaiers AND can append any child containers

[true valve]

Is there anyway to use soft reference without casting to my custom component?

I suppose usin interface?

[dark drum]

You can't cast a soft reference. You'd have to load it first and turn it into a hard ref. (either object or class)

What are you trying to do?

[true valve]

soft ref -> Load Async Task->Test_Fn_Interface

that' the only way i got to keep the low mem and blue line

I have a heavy component . when i use it, it jumps to gb in Size Map

[dark drum]

Ah ok. You could use an interface but in all honesty, you'd get yourself into a mess if you had to create an interface every time you needed to load something and then call a function on it.

I would look into function only base classes and hierarchy. If you're wanting to use soft references, its required to get the full benefit.

[dark drum]

I would look at the component itself. It's probably has a lot of references/dependencies it doesn't actually need. What i mentioned before hand could help as well but could require some refactoring.

[true valve]

Yea I have to do one actor at a time. trying to find the optimal way. So now i know two ways, interface works for me and have to try base class. Maybe create a parent component then move some variables and functions there and call that.

[dark drum]

Yea pretty much. As a brief overview, the base class would normally just contain the functions (sometimes unimplemented) and core variables (be careful will object types though). Then in a child you'd override the relevevant functions and implement them. This will then allow you to cast to the base class and call the function without it being tied to the larger/heavier class with it's implementation.

[true valve]

Make sense. thanks

[true valve]

What about blueprints with static meshes and ISM? For example an enemy base as a blueprint.

I have a bookshelf with a container component.

nvm same process

[crimson briar]

Oh, I skipped some part of the discussion. Nvm then.

[dark drum]

Yea, its the same process. You can still include a static mesh component but don't set the static mesh in the base class. You can set it in the child instead. (similar to how the character class works with the skeletal mesh)

[eternal sandal]

if i want to make a parkour game with a lot of mechanics like wall running, dashing, sliding etc where do i put them? like whats the best practice

[dark drum]

Personally, i'd look at making a traversal system (custom actor components with custom traversal uobjects for each action) to manage it. But it would probably be quicker/easier to use GAS.

[eternal sandal]

gas/

?

also what do you mean by custom actor components with custorm traversal uobjects? i dont understand

[last peak]

Galaxy gas

[dark drum]

GAS stands for 'Gameplay Ability System'. Its a plugin developed by Epic you can enable in the plugins section. It does require a little C++ to get going though.

As for a custom actor component, this is just a class you create that uses the actor component class as its parent. Actor components can be placed onto actors to give it new functionality.

Custom Uobjects are just a class you create using uobject as the parent class. Uobject is the base class for the vast majority of all class in UE. Actors and Actor components are types of Uobjects. Uobjects however are very light weight as can be great for creating swappable logic.

The actor component can create/store the custom uobjects and call logic on them as needed. Most systems would interact with the actor component and then it would do its thing with the uobjects.

[last peak]

Why not use gasp at that point ?

He would be 75% at his goal from the get go then

[dark drum]

I did say that. 🙂 GAS has its pros and cons so some people might want to opt for their own solution.

[last peak]

Gasp

https://www.youtube.com/watch?v=fYyuXxFf1SM

[eternal sandal]

c++ is needed to start it or i need to make stuff with c++ using it? i wanted to make the game bp only just for practice

[last peak]

You can make a entire Game out of Bp's

[eternal sandal]

yea ik

[last peak]

might not be the smoothest experience but its possible

[last peak]

For gas you need minimal c++ setup but pretty simple stuff
For gasp you dont

[eternal sandal]

whats the difference etween gas and gasp

[last peak]

one is a gameplay ability system the other is a movement system

[dark drum]

Oh GASP. 😅 I think the animation system is pretty heavily in terms of a learning curve.

[eternal sandal]

so i need GASP?

not GAS

[dark drum]

GASP is Game Animation Sample Project that uses Motion Matching for animations.

[last peak]

You dont "need" anything, you can also create everything from scratch if you want

[eternal sandal]

i know that but its like inventing the wheel over again

so i need GAS then?

[last peak]

Gasp uses a totally new system with chooser tables

[cloud token]

You can go simple animations now and change later when you feel more comfortable

[dark drum]

You could use both. GAS could handle the abilities themselves while GASP handles the animation side of things.

[eternal sandal]

where do i download gas from

[last peak]

this is gasp
https://www.youtube.com/watch?v=4ag7fSlEeKA

[dark drum]

GAS is a plugin you enable in the plugin settings. GASP is a sample project you can download from the launcher.

[eternal sandal]

oh ok thanks

[cloud token]

There is also one that gives only animations

From King something

[dark drum]

If you want to use both, download the GASP sample project and enable the GAS plugin.

[last peak]

Ye just keep working in the gasp project

that gives least headaches

[dark drum]

I always thought 500 free animations was misleading lol. About 200 of them are just walking/running. 😅

[eternal sandal]

Will do

[last peak]

it is misleading
for each anim you have like 15 different versions

[eternal sandal]

5.7? why is my version .6 wtf

[cloud token]

Good luck,

[last peak]

just with a other ground position

[eternal sandal]

why?

[cloud token]

You know in development there is always problems and bugs

[eternal sandal]

ofc

[dark drum]

Its a great example if you're an animator though. The animation side is wild.

[cloud token]

Im also new and im gonna do this to soon 😅

[last peak]

https://www.youtube.com/watch?v=j8RgsganqRU

[cloud token]

It means 5.4 and everything in between 5.7

[last peak]

His videos explained the entire thing pretty well

[eternal sandal]

yea i meant why can't i download 5.7 my version is 5.6.1

[cloud token]

I think you need to have 5.7 installed to do that right?

[last peak]

It is a really cool feature tho not gonna lie, i had fun with it, its just shitty that you need so many anims to expand it properly

[dark drum]

Chooser tables themselves are nice. Even for none animation related uses.

Of the top of my head, you could probably use one to determine what ability should be used based on some environmental queries. Running towards a wall, do a vault. Running towards a wall with a hole at the bottom, do a slide.

[cloud token]

I think yeah, if im not mistaken i saw video on that, or similar. Pitchfork or maybe it was Ryan Laley

[eternal sandal]

when i try to create the project i get this error?

[dark drum]

You already have a project with the path. Either remove the other project or give it a new name.

[eternal sandal]

i dont have it thought i delete it

also other name doesn't work

[kind estuary]

I have 4000 regions/provinces in my Strategy game.
When i load the game map. It needs to name them all, i guess by checking the color of the province, and getting the name from a Data Asset or Data Table.
Other things such as Region Weather, RegionNativeUnits, RegionBaseIncome, must also be loaded.
If doing as a Data Asset it means 4000 Data Assets 😣

Should i do it as a Data Table ?

[frosty heron]

sounds like something that needs to be generatedd

or are you seriously going to ddo 4000 entries manually?

[crimson briar]

Yeah, 4k is too much for manual entry even in a datatable

[dark drum]

Yea, manually entering 4000 entries is wild.

[kind estuary]

100%

but its a map of Spain

with all the regions

maybe there is no other way to go about it

[frosty heron]

you probably want to simplify and think more about the user perspective.

[dark drum]

For context, for the game i'm currently work on, i have compounds the player has to make. I've only done about 50 of them and that took me a couple of days. 😅

[frosty heron]

personally I would be overwhelmed if as the player I need to analyze a hundred regioons.

[crimson briar]

I would shift it to regions, or hotspots. Let's say give one of the plots an income of 40 as the center of a hotspot. THen with some math generate values for plots nearby.

You may need to manualy write data for several hotspots, but at least it won't be 4000

[kind estuary]

compounds?

[dark drum]

Yea, as in things like H2O, CO2 etc...

[kind estuary]

like imagine you have a map of europe with all the little regions of each country. You have to name them all manually, there's no other way around it, right ?

[kind estuary]

got it

[crimson briar]

Unless you can pull the data from some other data source

For example determining if the place has mountains could be done by pulling data from a real map/dataset somewhere. Datasets like this exist

[kind estuary]

you know what im thinking? MAybe have just like 500 regions named, as the actual historical regions. Then the others are to be named by the player himself as he wants, just make it a Editable Text Box

Like in CIV

[frosty heron]

You can export the data to DataTable

use existing source

[dark drum]

Depends on the scale. Just googling regions in Spain gives about 16 names which would be more manageable.

[frosty heron]

surely there's data out there for Europe region.

[kind estuary]

still it feels like slave manual labour

because i need to then write each region corresponding to a color in the map

what a PITA 🔥

[kind estuary]

yeah thats if you zoom out

hold on

[dark drum]

Yea, another one I found breaking them down further is probably less than 100 which is still reasonable.

Are you just doing spain or other areas as well?

[kind estuary]

https://upload.wikimedia.org/wikipedia/commons/e/ea/Blank_map_of_Portuguese_municipalities.png

this is closer to what im dealing with

if only i knew, i would have done tiles, and make the player build cities in tiles, like in CIV or something

[cloud token]

You could tell a friend.. "I have a job for you" then you show them this

[dark drum]

Delegate!

[kind estuary]

what if AI can do this

let me try

[cloud token]

You could take them for a drink or dinner 😄

[dark drum]

With over 4000 entries, you'd have to manually check them which would take just as long.

[cloud token]

Maybe you could merge regions to make 1 bigger?

[maiden wadi]

I'm not sure there's a smart way to not do that by hand without basing your entire system on an existing data set.

[kind estuary]

then it becomes a boring game with few regions and few factions

but maybe i shouldnt have so many regions

😵‍💫

i tried AI, it is saying he cant do that

[cloud token]

You could have like 40 regions/factions

Or start with that. And later you could split few to make more

You could make it as a part of story, how it was few bigger factions that then went split to more but small

Lore*

A lore for players that want to know the history how it became so many small 😄

[kind estuary]

Splitting mechanic is not easy to implement and can lead to a lot of problems

i thought about that

because its a cool mechanic

but think about it, splitting means one big region becomes 2 or 3 smaller regions

then how do you fit castles and armies in there

can lead to these issues

[cloud token]

Yea true..

[kind estuary]

needs voronoi for that though, its interesting

[cloud token]

Was just an idea 😄

[kind estuary]

like imagine, you have 1 big province, then like some rebellion happens, and it splits into 3 regions thats really cool

but hard to do it

[cloud token]

Maybe cut it down to 400. Its a lot less, but also many to have still

Would it be possible if I for example help you write them down? Or how would that work

[fading raptor]

tried following your advice & it simplified things tremendously, don't need an additional BP with that, thx !

[kind estuary]

the thing is that i want to make it feel like you are a regional commander, like a lowly lord that controls something like a small village here and there

and then you rise and become a count, then a duke

you get me

i find it boring to start as a king

i think ill go with the other idea

that is just specific regions have names

just for reference

[cloud token]

Yea, I agree with you!

[normal raft]

still slightly puzzled what to do about this ai character
for what ever reason it never looks like the the jets level .. but the numbers say it is

but i am not sure if its some type of optical illusion because of gravity, or possibly because the structure we are standing on is not properly aligned to gravity some how so we get this behaviour

[gusty epoch]

I am curious, If I make a custom event in blueprint, when I call that event is it guaranteed executed immediately? Or is an event call an opportunity to process the script asynchronously, some time later?

[frosty heron]

it will be executed when you call it.

Async or not.

if called from async function, then it will run when the async body is run.

[gusty epoch]

thank you, that was very helpful.

[normal raft]

the Ai BT stuff kind of shows a good notion of how you could have things like C++ .. so the function must complete, it can executes a bunch a threads, its can paralle a bunch a threads etc etc

[steady night]

Hey im setting upp some description, but this time i wanna use the "Tool Tip Text" window to simplefy it

ive created a ref to the "tooltipWidget" ive created, but how do i apply so the text i type in "Tool Tip Text" is applies to the widget

without using a "hover over this event or bind a new function for each tooltip*"

?

is that even possible or do i need to make a Advance Function for each ?

i mean in my head this should work :/ ?

[crude marlin]

Hello Gang, does anyone know how to solve when some blueprints seem to be breaking bcs of Unreal Versions.
I need to make sure all my demo blueprints works on any Unreal Version 5.4-5.5-5.6-5.7
But i can not find any documentation on how to solve this:

I have multiple projects and my plugin submoduled so i need to be able to test and save new changes in any Unreal version.

```The package 'MY BLUEPRINT' was saved with an newer version which is not backwards compatible with the current process. Min Required Version: 214 Package Version: 0````.

https://dev.epicgames.com/documentation/en-us/unreal-engine/versioning-of-assets-and-packages-in-unreal-engine

[maiden wadi]

How do you mean breaking because of unreal versions? That Version: 0 is suspicious. I'd assume your BP corrupted somehow.

[spark steppe]

you can pass the owner widget as parameter on the creation, and then in the tooltip you do something like OwnerWIdget->GetToolTipText() to set the actual text in the tooltip widget

that leaves you with one tooltip widget class, and you would just have to pass a self reference as OwnerWidget to the tooltip creation

[kind estuary]

help

there is this sphere that pops only during gameplay

i have no idea where is this coming from

[next hollow]

Thats probably the player.
I think thats the default spectator or something.

If your in the editor just detach, and click on it.

[kind estuary]

default pawn

ahh

thanks man

was driving me nuts

@next hollow

just put the Default Player Pawn as None, instead of Default Pawn

and it removed it

[gray hare]

Is there a way to compile all selected blueprints?

[last peak]

hit play

[gray hare]

I'm trying to avoid selecting each one and hitting compile.

[last peak]

I dont get it

Just hit play

Compiles everything

[gray hare]

I was hit with a, "this BP doesn't compile..." which threw me off. Hold on.

[wispy mulch]

Attack:

• sphere cast happens every frame
  when hit:
  (we want this to happen only ONCE to all enemies per attack)
• add unique hit enemy to an array of hit enemies
• for each enemy, process knockback and damage
  so what's wrong with my logic here, how do I make sure that the damage and knockback processing happens a) to all enemies that are hit and b) only once per attack spherecast
  I'm trying my best to wrap my head around it: the unique array of hit enemies solves a but not b

[gray hare]

That did work, thank you. Somehow forgot that.

[last peak]

You didnt share your logic

How can anyone tell you whats wrong with it if you dont show it ?

[wispy mulch]

just trying to make sense of the logic before showing the code, but if you wanna see the code, then sure. gimme a second

https://blueprintue.com/blueprint/or-18zsm/

[maiden wadi]

What calls this SwordAttackTrace?

[wispy mulch]

animnotifystate event tick

that setup is fine and I know it works

[maiden wadi]

Rather than an AddUnique. Do a Contains check first. Then add and apply knockback/damage here.

Right now you add them uniquely. But then you also apply the stuff to them and then clear the array.

The array should only clear after the attack fully ends, not each trace tick.

[wispy mulch]

would using a set help instead of an array?

[maiden wadi]

No. It's not about the container.

You currently do.
StartAttack
TraceTick
AddTargetsToArray
ApplyDamageToAllTargets
ClearArray
EndAttack
???

You should do

StartAttack
TraceTick
AddNewTargetsAndApplyDamageWhileAddingIt
EndAttack
ClearArray