blueprint

[remote meteor]

by anychance you can look into the ThirdPersonTemplate

there are some examples how they do things

[dusty schooner]

Fair. I guess if I'm jumping I can overwrite the current animation with a new jumping anim

[remote meteor]

or better and if you are feeling adventurous

go check out Lyra Project

its on UE5

its a good example on how things should be done

[gentle urchin]

What do you mean its not showing up? At which point? You must debug it at runtime

[gentle urchin]

could :p

[dusty schooner]

Makes sense. Though I do wanna knock out getting this interface working as a learning opportunity XD

[remote meteor]

yes commands does run on shipping builds

ok could 😂

[dusty schooner]

I'm going through some Udemy courses at the moment so anything new is a must know lol

[remote meteor]

by the way

those inputaxis are also ticks

[dusty schooner]

I like it

[remote meteor]

anyway

to get the bool from your ABP

you can just do this

or if you want to use an interface

you can call the interface instead in the abp

then implement the retrieve function in your chara bp

[dusty schooner]

Right right. How do I call it? Custom event?

[remote meteor]

for example

[dusty schooner]

I did this in Character BP to handle the ticks.

[dusty schooner]

Looking into this. Trying to figure out what node I need to use after Set HasPlayerInput

To send my function with boolean param in BPI

[remote meteor]

to the abp right?

[dusty schooner]

Yeah so it's like Char BP > Interface function > ABP

[dusty schooner]

Where ABP could honestly be any other BP in the future I want to communicate with another BP via interface

[remote meteor]

from your skeletal mesh > GetAnimInstance() to get the ABP

calling interface is just simply typing the name of the function

[dusty schooner]

Interesting.

[remote meteor]

it should appear anywhere

[dusty schooner]

Ohhhhhhhh

That makes sense. lol

[remote meteor]

whether if it resolves it depends on what is your target

if it doesnt have it

it simply does nothing

[reef crypt]

@gentle urchin hey man sorry for the ping, i was just wondering something. so i was going about my RNG item spawning project and i duplicated the parent BP_Pickup, and was going to try just making each of them individually like (BP_Ammo, BP_Battery,BNP_Flashlight, etc. by changing the default class to be each of those, but the duplicated blueprints have this error of:
"Can't connect pins Self and Item: Self object reference is not compatible with BP Pick up Object reference."
"Can't connect pins Item and Self: BP Pick up Object reference is not compatible with Self object reference."

i was wondering as to how i would go about fixing this, any help appreciated thanks.

[dusty schooner]

hMMM

[faint pasture]

Are you familiar with inheritance?

[gentle urchin]

Is this according to my suggestion? Feels like it has driftet off a tad :p

[faint pasture]

You don't duplicate BP_Pickup, you subclass it

Actor
-BP_Pickup
--BP_Ammo
--BP_Flashlight

etc

[gentle urchin]

The spawner was ment to just be a stupid spawning class with some simple random item functions based on user configured array

While the actual items were based on inheritance

[remote meteor]

SpawnPoint can be useful too😆

[gentle urchin]

There are ofc tons of ways to set up the configurable array aswell, for reusability

One could have items in tier lists objects, and simply select the correct tier in the spawner config as an example

[junior hedge]

where is that

keep hearing people talk about it

oh i found it

[queen sphinx]

Ok, So have this issue with my having multiple characters trying to run out a doorway 01 "it is open".
They all run for the door, but as soon as 1 enters the door the rest redirect and head for the other door 02.
And then as soon as the 1st character runs out the door "freeing it up", all the characters then redirect back to door 01
I would like them to run and bunch at door 01 and then run through it.

I am pretty sure it has something to do with nav mesh it being viewed as a closed off section.

[faint pasture]

Why are you telling them 60 times a second to chase the player

You're probably annoying them.

[queen sphinx]

hahah,

[faint pasture]

Just tell them to do it once

[remote meteor]

😂

yeh once is enough

[faint pasture]

They're probably recalculating pathfinding as soon as one of their buddys is blockgin the way

Try having the AI characters NOT block navigation.

well first, try not spamming them with orders.

[queen sphinx]

I have already switch that based on your advise

[faint pasture]

They still rerouting?

[queen sphinx]

still doing the doorway shuffle.

but not as bad

[faint pasture]

Turn off Affect Navigation in the (capsule I think) on their BP

that should make them NOT affect navigation. They'll just cram up like a bunch of shoppers on black friday

[queen sphinx]

that solved the original issue.... hahah onto the next one

But thank you, that fixed the door way shuffle and that was driving me crazy.
I will try to fix the jamming issue tomorrow.

[faint pasture]

That might be an AI thing. You're telling them to go to the player, not to go to the door and wait for a clear path

They're just doing what they've been told, just shoving their way to the player

[queen sphinx]

that makes sense.

[junior hedge]

i mean idk anything about that but maybe turn off to stop on overlap?

maybe not actually

lol

[faint pasture]

There's a crowd avoidance AIController you can look into

it'll enforce some personal space so they aren't stacking up like that

[queen sphinx]

Thank you, Just looked up and found the unreal doc about it. Thank you. Going to have to try this out tomorrow after work.

[faint pasture]

IDK how automagic it is but it's prolly worth looking at

[midnight roost]

Has anyone tried migrating/integrating the ROG robes and armor with Universal Character Customizer that just went on sale?

[queen sphinx]

If game design was easy, we would have more versions of mine craft. But it looks like it is worth the try, based off of the doc.

my next thought was creating like a doorway lane, that once the AI runs into the door area, then it would file them through. But going to try the Crowd Management.
Anyways off to bed. Night

[royal helm]

What component do I need to modify in order to move the player camera? I literally cannot find one that works.

I am trying to force my camera to point a specific direction when interacting with a ladder. I want to lock the camera and then move it into a predefined position. Setting rotation on the camera component does not work

[queen sphinx]

@faint pasture Spot on advice, now I can sleep tonight.

[gentle urchin]

The cameramanager

[royal helm]

It literally doesn't work. I did this as a quick test, and it doesn't work. Nothing happens to the camera

[surreal peak]

What is your ViewTarget ?

The character?

[royal helm]

Yes, I have a camera component on the character

[surreal peak]

If the character is the ViewTarget and it has a camera component you could try rotating that one. But you might need to toggle between it (or any spring arm it sits on) using control rotation or not

The PlayerCameraManager sits kinda on top of all of that. It has functions you can override to return whatever location and rotation you want

That function usually also gives you the ViewTarget and current pov

[royal helm]

I tried directly editing the rotation of the camera component on the character, but that didn't work. You're suggesting I turn off using control rotation when I want to take control of the camera manually?

[surreal peak]

Yeah otherwise it might just not react

[royal helm]

Okay, let me try it. Thanks for the tip

Hah! that did it. Many thanks!

[gentle urchin]

Also as cedric mentions, the cameramanager has overrides for the actual loc/rot of the camera

If you wanted it to say.. react in a very specific way in a specific scenario

Like when entering a door you wanted it to lerp close to the char shoulder without waiting for the cameraboom trace to hit something

Or perhaps you dont even have a spring arm, who knows^^

[surreal peak]

Yeah as soon as you need custom camera locations without changing ViewTarget, it's golden to know and use the camera manager

[royal helm]

I see the overrides in the camera manager blueprint, but I can't seem to access those functions inside any other blueprint, even if I cast to the camera manager

[surreal peak]

They aren't meant to

It's not meant to be a "Set Rotation from outside" situation

[royal helm]

I see. The workaround tuning off pawn control rotation seems to work, so unless I run into problems, I'll try this method first. Otherwise I'll do a bit more reading up on the cameramanager 🙂

[surreal peak]

The PCM call those functions every frame, giving you the last pov and ViewTarget. You can then decide in that function what you want to return as the new pov

Based on outside factors

E.g. maybe the match state being waiting for players and you want to show some camera that is in the center of the map

Or you have a stationary camera that shows the whole map anyway

If you want to keep the character as ViewTarget, which you should, you would get that special camera that sits in your level and use its transform there

Or maybe you have a battle camera for a pokemon like game that should always point between both characters with a slight angle. All of that can be done in that function

[royal helm]

Sounds great! I'll do a bit more reading up on this. Thanks for the help

[faint pasture]

It probably does work but you're fighting the "Use Control Rotation"

You're setting the rotation, then later in the frame it's getting overridden

[south timber]

Hey guys! What's the recommended approach for dealing with global variables across levels?
For example, i have a quest that may or not may be completed. So i could have a "bIsTheQuestCompleted" bool and depending on the value I could have stuff happening in different places in the game.

Is using the game instance the way to go? Should i create the variable there and get/set it when needed?

[faint pasture]

GameInstance or savegames if you gotta be able to save them anyway

[south timber]

Thanks. I'm asking because I'm making a global variable system using Game Instance Subystem and Gameplay tags. It ended up being easier than expected and it works fine but I wasn't sure if it's a good idea to use it at all. But it's technically similar to storing variables in the GI so I guess it is.

[gentle urchin]

Sounds perfectly reasonable

Pair that with a global bus and you're golden 😄

[south timber]

🤔 do you mean something like subscribing to changes on those variables so I could execute events when a change happens?

[gentle urchin]

Yes exactly 😄

[surreal peak]

Just make sure you don't ref world stuff in the GI

Cause theoretically the GI shouldn't have anything to do with world stuff (e.g. an actor)

I would probably build a system like this as a World subsystem and use Savegames. But in the end it's probably both a working solution

[steel wedge]

Hi guys! Can I use kismet functions like 'Shuffle Array' or 'Random Integer' to generate dice rolls? How random will the values be? At 10,000 throws, the proportions match. Is this a good way to generate random die rolls?

I am not entirely sure if these values are random enough.

[gentle urchin]

This is probably a better approach to it, but as you say, both ways likely work. Still havnt gotten around to touch subsystems.. are they as easily transferred to other projects as a plugin?

[south timber]

Yes, that's their strength. If you don't have any other dependency in your subsystem, you could just copy/paste it to another project and it will just work™

[gentle urchin]

Daym, thats handy !

[south timber]

I have a few Game Instance subsystems as well, putting all that code into my GI would make it look like a monolithic mess. So that's another advantage.

[reef crypt]

this is what i tried last time...
i followed another tutorial i saw on yt where i was able to make the items randomized, but weren't able to be interacted with or show up in the inspect screen. my thought process was maybe i could duplicate the BP_Pickup, then just set the default classes to be the things like ammo, battery, etc and then follow that guide.
i really dont know what im doing but i wanted to try at least before i keep asking questions
sorry if this should be a lot of easier than im making it out to be 😅

[shrewd hedge]

hey guys I have this problem with my code where whenever I spawn a ship, it always spawns like 5000 miles away from my character. Any idea how to fix it?

ill send ss now

I figure it's this, no idea though

[tight schooner]

I don't see in the screenshot how the ship position is set

I assume it'd be the transform input pin on a "spawn actor of class" node

Or some logic that sets actor location

[compact plover]

using random to randomize mesh, but in this case i want to avoid repeat. Any tips?

got a BP screenshot?

[shrewd hedge]

yeah it was that

thank you

[reef crypt]

https://cdn.discordapp.com/attachments/221798862938046464/996157553316732989/unknown.png @gentle urchin when i tried that, this was the result

i tried destroying the actor and then spawning the other (the random one in the array) but im definitely not doing it right 😅

[tight schooner]

@compact plover shuffle array node, then spawn index 0, then remove index 0. Repeat spawning & removing until array is empty.

If you want to reshuffle the deck when it's empty, then do it on a working copy of the main array.

[compact plover]

Thanks

[teal inlet]

Hi. After unloading the level, the objects of it still remains in the scene. I read that I need to set the owner of every object in that level, so when it is unloaded, they get destroyed automatically. I don't know how to do that. Thank you.

[gentle urchin]

The new actoe spawning is of the correctninteractable class?

[wooden river]

How to rotate "Box Sphere Bounds"? When I pass rotation to "Draw Debug Box" it's rotated correctly, but I don't know how to do that without it
and get that rotated struct :<

[glacial bison]

Using a oculus quest 2, trying to get getplayercontroller failed as it returns void

How can i gef oculus controller reference

[tight schooner]

Your switch on int branches execution into three possible lines. The first line doesn't apply a morph target value at all, so it'll never affect anything except for those float variables. The second line affects width but not height. The third line is vice versa.

What you could do is set both morph targets at the end of those lines. (There are other ways to structure this logic, but in the interest of "solving the problem in front of me"...)

[desert relic]

how do i fix this

Node Transform (Modify) Bone - Bone: Head uses potentially thread-unsafe call Try Get Pawn Owner . Disable threaded update or use a thread-safe call. Function may need BlueprintThreadSafe metadata adding.

it doesnt do anything when i disable threading

[tight schooner]

what's your use case for that? Like what do you actually need a rotated bounds for?

[thorn ermine]

You can move that calculation to get the rotation to your AnimBP tick event in the animation blueprint's graph, and set it to an instance variable, then there in your animation graph just reference the variable. Calls between game tick and animation ticks are not guaranteed to be thread safe.

[desert relic]

oh good idea i will try

it didnt work

i tried to log the rotation reference from animgraph

just shows 0 0 0

from event graph it shows some values

that it should show

[wooden river]

@tight schooner I need thighter bound to better tell where on image object is positioned, because its not rotated its sometimes is stretching object position

pink is rotated

[tight schooner]

that's an interesting problem and idk the answer, sorry 😓

[supple hemlock]

need help with FindObjectSamicc

[desert relic]

How to cast in animgraph?

[icy dragon]

You don't.

[desert relic]

how do i then rotate head of the character to direction i want

[icy dragon]

Just do a Look At, supply the location vector that event graph sets by any means.

[desert relic]

how do i put location vector here

oh i found how

and it didnt work

i logged the vector it gives 0 0 0

from event graph its good but in anim graph it doesnt work

[thorn ermine]

Just check that you are setting, and using the same variale 🤷‍♂️

[gentle urchin]

Reading from the correct bp etc

[desert relic]

its the same variable

[gentle urchin]

I guess 0 to 1 represents 0 to 360 degrees?

Oh. Nvm.

[mental trellis]

0 would represent the original haed rotation and 1 would be looking in the direction of the location.

[desert relic]

why is animgraph not being able to read fucking values

[pure hemlock]

Is there any way to uncollapse all these subcategories in single click/shortcut for function so I don't have to click each and every one of them for 10th time after I close the editor?

[desert relic]

is there a way to change bone rotation on skeletal mesh outside of animgraph?

[trim matrix]

how do I find the blueprint call stack of a node?

[sweet osprey]

Could someone tell me how to get the size of an bounding box?

Im trying to get the mesh size of an actor

[little cosmos]

Using editor utility BP, seems like you can't assign physical materials to your mats. Can anyone verify this?

[gentle urchin]

Get mesh -> get bounds -> extent

[thorn ermine]

We use exactly the same way.
We setup values in the eventgraph from the character
And then use those same variables in the animgraph to do spine and head aiming
And it works. Not 100% sure, but you need to probably do a little more debugging.

[desert relic]

i print in event graph

it prints what it should

but i log from anim graph

and it logs 0 0 0

i dont know why it doesnt read correctly

maybe it doesnt update in animgraph?

[thorn ermine]

It def does. UE4.27. Maybe try another variable, try hard coding values, try some stuff.

[desert relic]

i cannot hard code location where robot should look

since he should look to an enemy

[thorn ermine]

for testing you can, pick a spot , and look there 🙂

use a cube, in the world, get the position, and see

[desert relic]

its all pointless if animgraph cannot read the value

[willow tendon]

do BP intrerfaces sort of work like event calls? im having a hard time trying to get a variable from one BP to another via interface.... seems the event wont fire

[white elbow]

Why do I keep getting these errors every time I start the game?

[tawdry surge]

@willow tendon you want to use the message unless you have an interface reference

[willow tendon]

not sure i understand... both BP's have the interface implemented if thats what you mean

[thorny glen]

Hey guys,
I have an actor which has many child actor components.
My question is:-
Can I delete my actor without deleting it's child components.

[tawdry surge]

Nah the clock event you're calling has multiple nodes to call it

[mental trellis]

Child actor components are pretty terrible btw

[tawdry surge]

One has (message) on it

[mental trellis]

They cause lots of issues.

[thorny glen]

Yeah I know But now I'm stuck with them.
I tried detaching them from parent and then deleting the parent but it ends up deleting everything

any other solution which I might try?

[mental trellis]

Sounds like you need to unstick yourself from them.

[willow tendon]

where im sending? or trying to receive the event call?

[thorny glen]

Actually I'm saving the level and each child actor has functionality to save itself. So when I'm saving level It ends to Saving multiple copy of same thing

[tawdry surge]

Where you are sending/calling the function/event

Instead of the function call, use the message one instead

The event in the receiver will then fire

[willow tendon]

okay ill look for that

[tawdry surge]

@thorny glen How you should unstick yourself depends on what your problem BP is actually doing, but sounds like you'll need to do some gutting and rebuilding

[willow tendon]

AHHH i see it... yeah, had to shut off context to see it

[cyan bone]

Is anyone able to Add Component By Class a Spline Mesh Component to any actor?

[tawdry surge]

If you are pulling off an actor reference it should pop right up

Execution pin shows the function call iirc

[gentle urchin]

Still here huh 😄

Opening

[cyan bone]

yup 😆

[gentle urchin]

procrastination at its best

"oh, you've got an issue? Let me get right on that before i get back to my own project"

Spline or spline mesh ?

spline mesh ok

[cyan bone]

spline mesh

[gentle urchin]

worked

instantly

[cyan bone]

It doesnt work 😦

[gentle urchin]

getting any error ?

it didnt work when mobility conflicted

[cyan bone]

AttachTo: '/Game/TopDownBP/Maps/UEDPIE_0_TopDownExampleMap.TopDownExampleMap:PersistentLevel.SplineMeshTestTemp_2.DefaultSceneRoot' is not static (in blueprint "SplineMeshTestTemp"), cannot attach '/Game/TopDownBP/Maps/UEDPIE_0_TopDownExampleMap.TopDownExampleMap:PersistentLevel.SplineMeshTestTemp_2.SplineMeshComponent_0' which is static to it. Aborting.

[gentle urchin]

there we go

so there's the issue

[cyan bone]

i saw this on a post

but he said he changed to static

[gentle urchin]

thats what i did

[cyan bone]

and it broke his game 😱

[gentle urchin]

lol

[gentle urchin]

this works for moveable

now my watch begins (daughter woke up so gotta leave pc) 😛

[valid grove]

Hello guys, I need a guidance for an approach in a Shooting game.

I am working on creating ADS mode with scope for a third person game. For this, Should a separate camera be used to render the view inside the scope using render target ? Is that the correct approach ? Because if I integrate external zoom for scope, I do not want the scope mesh to move away from camera. More like how its working in PUBG.

I am new to integrating this. So please correct me if there is a better approach.

[near bramble]

Hello I'am trying to play interface event on BP_Rilfe for these I trying send message from FirstPersonCharacter
but it isn't work.

[cyan bone]

That worked. Thank you

But now im getting the issue, that i cant move my character. Because its static.

Mobility of /Game/TopDownBP/Maps/UEDPIE_0_TopDownExampleMap.TopDownExampleMap:PersistentLevel.SplineMeshTestTemp_2 : SplineMeshComponent_0 has to be 'Movable' if you'd like to move.

[gentle urchin]

Which is

Why i gave you the last solution

[tawdry surge]

@near bramble where are you setting object?

[dawn magnet]

Hi, I'm animating a metahuman and have created some Bone Driven Controllers on a jacket. I then plugged those at the end of my characters post-process animbp. However, when I put an animation track onto my character in the Sequencer, the jacket disconnects. My current work around is to add the same animation track to the jacket and the metahuman, but this is a poor solution as I need to bake and cleanup the animation.

I've tried putting this post-process animbp in the Details of the jacket in the BP, which disconnects the jacket from the character in the sequencer and the Bone Driven Controllers don't work.
I've put the post-process animbp in the Details of the jacket in the SkeletalMesh, which also disconnects the jacket from the character, but the Bone Driven Controllers do work.
The jacket is in the ConstructionScript.

Anyone have experience with this?

[cyan bone]

oh i see

set mobility

ok it works now

thank you @gentle urchin

[near bramble]

@tawdry surge it's just a varible

[gentle urchin]

Variables are by default empty

Pointers (references) are null

So you must set them with some value... Some reference..

Like the rifle.. either you can spawn the rifle and use the return value reference for it

Or you need to handle it during pickup

Or some trace or whatever

[near bramble]

okey

[magic summit]

hello does anyone know how to spawn physics constraint that would constrain two different skeletal meshes of different actors?

[gentle urchin]

Sure you just dont wanna fake it with force towards eachother scaled by distance ?

[near glen]

Heya! Can you please hint me on how to find proper guides of how to make dynamic roads and stuff? I want to make levels where roads are like flexible curved bridges. And I want to make those roads out of something like curve points in space

[gentle urchin]

Spline, spline meshes

Is what you're after

[magic summit]

huh maybe its possible to do it that way

[gentle urchin]

Im no physics guy so i could be wrong but i seem to recall a convo a while ago about a similar setup(players bound by invisible rubberband) and that was solved this way

Way easier, is what i could make of it

[magic summit]

yeah, I think it might be even better for less glitchy stuff

I want to simulate hoverbike crashing and character holding onto it a bit more

[lone sonnet]

How would one go about exposing a level blueprint variable for editing in a level sequence? Under variable details it has the 'expose to cinematics' bool you can tick, but I cant for the life of me find how to link the two so I can change the value of my float over time in a sequence.

[near glen]

thank you much!

[gentle urchin]

What variable could you possibly save there :p

[trim matrix]

Please help!

[cursive grove]

Can I somehow check if this asset exists as a world map?

by class or something?

[lone sonnet]

I have multiple objects I want to fade in over time. They all have the same material, so I went down the dynamic material route. I loop through and update the opacity every tick in the material component of each object (It is a smaller scene), referencing a level variable to know what the material should change to. This all works, but if I want to change that level variable over time to match a sequence action I cant figure out how to expose it in the sequence editor for manipulation.

[cyan bone]

Does the ignore self also ignore actors of the same type? For example, i have an actor Army0 and another actor Army1 they are the same type. I ticked ignore self, so my trace doesnt hit my Army0, but it doesnt hit my Army1, why?

[faint pasture]

Material Parameter Collection

[faint pasture]

Does it ordinarily hit it anyway?

[cyan bone]

Its hitting a cube on the way, but it doesnt hit collisions spheres that i spawned

[faint pasture]

Can you confirm that this trace has ever been able to hit any army?

[lone sonnet]

Thanks! Didn't know about this.

[cyan bone]

i need those little spheres to detect collision

they belong to the second Army

[faint pasture]

Are those spherecomponents? what are they

[cyan bone]

They are Add Sphere Collision on the enemy Army

[faint pasture]

Show the collision settings on those spheres

ALso what's your framerate lol

[cyan bone]

oh wow. you already saved me

it was overfap dynamic

why did i put it overlap dynamic

its working now

[fallow sentinel]

I trying shoot the gun but this keep popping up.

[cursive grove]

How can I check if a map (world) exists?

[mild ore]

Asset registry is a great way to do stuff like that. Once you add the maps, you can search the list as well.

[faint pasture]

The get actor of class is returning nothing

What are you trying to do here, what actor is this code in?

Why not just spawn the bullet in the correct orientation and have it give itself an impulse in its own forward direction?

or pass over the forward vector when you spawn it

the bullet shouldn't be asking the gun which way to go after spawning

@cyan boneThis is what I was talking about last night for using a couple splines to shape your squads

One soldier is AWOL

[still plume]

i don't have the Load ASSET BP in 4.26 🤔 i need to install any kind of plugins?

[cyan bone]

thats awesome. its what im doing right now.

[zealous moth]

how are you shooting a gun like this???? Check the First person template and use that as a guide to make a gun/projectile

[hexed loom]

One message removed from a suspended account.

[faint pasture]

#blueprint message

Do you know what casting is?

[reef crypt]

i believe so? i was able to select the new "Random" class just like the others when placing the BP_PickUp

it also would let me interact with the new ball that spawned

orange highlight meaning i can interact with it, but doesn't actually randomize on play :[

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

[faint pasture]

OK so learn what casting is.
Casting SomeActor to SomeClass is asking "Hey, is this actor an instance of this class? if so, let me do that class's stuff to it"

Say you had an Animal. You want it to bark. You can't just say "Hey animal, bark!", because it might be a fish, or a squid, or a bird.
You'd cast the Animal to Dog, then you'd have access to Dog stuff like Fetch, Bark, FurColor, etc

[hexed loom]

One message removed from a suspended account.

[faint pasture]

https://docs.unrealengine.com/4.27/en-US/Basics/UnrealEngineTerminology/

[hexed loom]

One message removed from a suspended account.

[faint pasture]

Learn what actors, pawns, controllers, etc are

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

[icy dragon]

https://learn.unrealengine.com

[mental trellis]

http://www.learncpp.com ?

Damn, wrong channel.

[icy dragon]

Sir, this is not the real #cpp

[hexed loom]

One message removed from a suspended account.

[mental trellis]

Still probably useful.

[icy dragon]

Take the first hour course from that.

[hexed loom]

One message removed from a suspended account.

[icy dragon]

If you take it that way

[mental trellis]

If you don't know what goes into the object pin, !zip, it's a l2p problem, unfortunately. People aren't going to spoonfeed you.

[tight schooner]

If you mouse-over the input pin on that node, you'll see it wants an object reference. An object reference refers to a spawned thing somewhere in your game world. A cast checks the class of that object. That's the direct answer to your question @hexed loom

But yeah you need to learn the basics

[hexed loom]

One message removed from a suspended account.

[mental trellis]

You're the one that doesn't seem serious, !zip.

[hexed loom]

One message removed from a suspended account.

[faint pasture]

You plug whatever reference you want to cast to that long ass class name into that pin

[icy dragon]

Even myself started by learning the basics, like 6 years ago

[mental trellis]

You might get more help if you asked a higher level question too. "How do I do x?" not "why doesn't x work?"

https://xyproblem.info/

[icy dragon]

Yeah, I'm going to call this reaction uncooperative.

[tight schooner]

"why doesn't this cast node work" is dependent on your game design so nobody here can tell you which mouse clicks are going to fix it. Gotta learn what object references are, and the various ways they get handed around between BPs

[mental trellis]

@faint pasture (do watch tutorials)

[hexed loom]

One message removed from a suspended account.

[tight schooner]

An object reference that is that class is what you want to give to the cast node

[mental trellis]

Your question was, "what's the object?" That's something we can't answer. It depends on your blueprints and game design. And it's a very simple question that learning the basics will answer for you.

The real answer is, "what do you want to connect to the pin?" You need to figure that out.

[tame pecan]

@hexed loom A cast is a "what are you?". You don't magically get whatever you are thinking about. The "object" is what you wanna check. And whatever you're casting to is what you wanna check against.

So a cast to "ThirdPersonCharacter" is basically asking: "Hey 'object'! Are you of the class 'ThirdPersonCharacter'?"

[faint pasture]

You get that input object however you want. Line trace for it, have a stored reference, get random object. We don't know what you're trying to do so can't answer that. That's like asking "Where do I get the objects I want to weigh on this scale". It's a non-question, get them however you want.

[hexed loom]

One message removed from a suspended account.

[pulsar lantern]

I'd like to add to this, as someone that misunderstood casting for years, that when a cast succeeds, it's basically saying "yes that's me, you can treat me as this object you're casting to and use my member functions", and actual conversions occur when the types are compatible and implement those operators.

[cyan bone]

I have this big mess of nodes, that i need out of my sight but need to keep it just in case i need to look back at it in the future. I know it looks horribly spaghetitious 🍝 . How can i best keep this stuff yet without it being here activated.

[tame pecan]

Is this a function or a event?

[faint pasture]

Select all, press delete key, save project

[cyan bone]

event

it has timelines

[faint pasture]

That'll save it where it should go

[cyan bone]

lmao. no i cant. i might need some bits in the future

[faint pasture]

Digital Hording

You'll know not to do this in the future

Ergo, you don't need it.

[cyan bone]

so there is no way to keep it around just in case

[tame pecan]

I'd suggest to break some of it into functions

[cyan bone]

maybe i can collapse it to a macro

?

[tight schooner]

Collapsed graph I guess

[cyan bone]

that did it 🙂

[tight schooner]

Or make a new event graph and put it there. But in the long run you'll want to convert the useful bits into functions and prune the rest

[mental trellis]

Rephrase that again without telling us what you've done - just tell us the effect you want to produce.

See the XY problem website I linked earlier.

[hexed loom]

One message removed from a suspended account.

[mental trellis]

Text is part of the player's UI?

In the overlap event, save the reference to the actor you overlap with (e.g. the market) and use that in your cast node?

[cyan bone]

the issue with that is the connections, i need to keep them. Else i wont be able to remember where everything goes and not goes

it was really a sphagheti al tomato

[mental trellis]

Something like that?

I'm not sure if there's an "unoverlap" event? So maybe you need ot check if you're still overlapping hte market to remove the text.

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

[reef crypt]

didnt know that term exactly, but i think that's what i've got going
i have the BP_PickUp and then other classes of Class_Ammo, Class_BatteryFlashlight, and i was wondering how i would go about a Class_Random that will choose one between the others

[mental trellis]

So how do you expect the UI to know about this? Where are you telling the player or the player's UI about this change?

[tight schooner]

@cyan bone for future reference, you can mark functions as deprecated, which is one of the benefits of breaking stuff down into functions in general. It lets you put something in a limbo state of "I need to delete this but not yet", and the engine will remind you not to use the stuff you marked as deprecated.

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

[mental trellis]

The Player would be that other actor pin, wouldn't it?

[hexed loom]

One message removed from a suspended account.

[mental trellis]

You can't say "I'm overlapping" and then expect another actor to know about this new, glorious state without having some link between them.

[tight schooner]

@cyan bone you know... Maybe another way to "save" it is on that blueprintUE website or whatever

[viscid hinge]

whats wrong

[cyan bone]

yup i knew about that. but making it a graph is great, its out of my sight and i know its stuff from the old idea.

[mental trellis]

So instead of (or as well as) setting the "is overlapping" on the market, maybe set a reference on the player to the market so it knows it's currently in a market?

Do something to inform the player.

[hexed loom]

One message removed from a suspended account.

[mental trellis]

Yes.

"Hey other player you have entered a market!" but with blueprint nodes.

[hexed loom]

One message removed from a suspended account.

[mental trellis]

You've got a bool on your market? Add one to your player and set it to true / false

[pulsar lantern]

Is there an updated performance benchmark suite for C++/Blueprints/NativeBlueprints in Unreal Engine 5?

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

One message removed from a suspended account.

[fiery swallow]

everything What's the goal here?

[primal anvil]

Hey guys! Who can give me short explanation about blueprints? I need some basic explanations like tutorial in tutorial

[hexed loom]

One message removed from a suspended account.

[primal anvil]

This is like about to some spend your free time, so I am understand how is it in your case

[faint pasture]

Are Ammo and BatteryFlashlight child classes of PickUp?

or BaseItem or whatever your base class for items will be?

[primal anvil]

Adriel, why you are recommending to stop watching tutorials?

[mental trellis]

He's weird.

[primal anvil]

Is it better to read documentation instead?

[mental trellis]

A lot of tutorials do things badly or just plain wrong.

But you can get a general idea, just don't take them as gospel and use a range of tutorials to build a better picture and then think for yourself.

[primal anvil]

Because yeah, when you are watching someone's tutorials, you're actually repeating their's mistakes and thinking not by your own min

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

One message removed from a suspended account.

[primal anvil]

Yup

[gentle urchin]

Thats usually the error of the viewer, and not the tutorial lad

[mental trellis]

No, a lot of tutorial makers don't have a clue.

I'm sure they're lovely people, but that doesn't make them good coders.

[pulsar lantern]

Blueprints is just visual scripting core C++ set pieces and linking them together in a stack.

If someone doesn't really understand basic coding practices, blueprints will get out of hand very quickly, and a lot of tutorials will not be scoped around practical scalable usage.

[fiery swallow]

Tutorials are great for exposing you to nodes that you might've not known about

[hexed loom]

One message removed from a suspended account.

One message removed from a suspended account.

[primal anvil]

So, I am watching RTS Tutorial and actually I am understanding the idea, but some of the nodes I can't even understand why I need them to use

[mental trellis]

Good job, !zip.

[gentle urchin]

They probably are, and they usually spend quite a bit of time on it 😛 But as you say, it doesnt make them good

[pulsar lantern]

Do you have a specific example?

[primal anvil]

Someone please add me to the friends if you are ready to help

[mental trellis]

Just ask questions in here, aleksandr.

[primal anvil]

I am no expecting to something complicated or etc, just any your possible help

https://www.youtube.com/watch?v=rLe6Jrdqu3w&list=PL4G2bSPE_8ul0VWqaxhv7gm2oXTVFC3as

[viscid hinge]

I step on the floor, door gets removed, I’m off the floor door comes back

[primal anvil]

So, here is the tutorial

[mental trellis]

Not many people like helping 1-to-1.

[primal anvil]

What does it mean "game input and UI"?

[gentle urchin]

Fewer even like to spend half a day to get into the issues at hand, so if there's a question, be precise about it ^^

Higher chance of getting an answer

[mental trellis]

I believe that means input events will fire and you can also use the mouse to interact with the game UI.

[pulsar lantern]

^

[mental trellis]

Just UI would stop input events firing.

Just game = no cursor.

[primal anvil]

So, right

[mental trellis]

By input events, I mean key/axis bindings, not UI mouse events.

[primal anvil]

And how it works "Self"

[mental trellis]

Self is a reference to the object you're currently making nodes for.

At this point you should do some more basic tutorials...

[pulsar lantern]

@primal anvil So if you have Visual Studio (You really really should), you can click on any blueprint and see it's C++ code. Every node has a corresponding UPROPERTY or UFUNCTION that exposes different systems of the engine to visual scripting.

Nodes like that one do just that, interact with something (in this case the mode of the 'mouse' and whether it is driving the playercontroller or not)

[primal anvil]

Yup

[fiery swallow]

https://gyazo.com/3b7bb712110716a9edcc2e4689f85f9f

[primal anvil]

So, you're guys just helped me in some case

[fiery swallow]

Oh I think it's suppose to be the opposite but it's the same concept

[reef crypt]

Yes they are! 🙂

[faint pasture]

K so anything that operates on PickUp can operate on them

so you can have an array of Pickup classes and put all your subclasses in them

[long iris]

event Begin play is not called when i spawn an actor how to solve?

[fiery swallow]

Are you sure? Can you connect a print string at the start of beginplay, or use a breakpoint to be sure

[long iris]

yes i tested it

its also go trogh

i maybe found smt

[feral parrot]

can anyone have a call ? Need some help with bp, will be easy to share the screen. Simple stuff 🙂

[long iris]

AI Move to is called:
When i manual spawn the Actor it Moves, When the BP spawner spawns my actor it wont move. Any Ideas?

it says success but it dont change position

other one i placed manual moved

[tawdry surge]

Is it on a nav mesh?

[long iris]

yes

it moves when i place it manual

but not when it spawned

[zealous moth]

how do you access the post process material in a PP component?

[long iris]

any guess whats are the source of theese artefacts?

medium shadow setting starting to break all

[tawdry surge]

Oh, is it set to be possessed by the ai controller on placed and spawned?

Its usually set to placed only by default

[reef crypt]

so would that mean i would be doing stuff to PickUp instead of making another class? i tried doing this to no avail
my thought process was maybe i could make another subclass that would just change itself into another of the specified subclasses (or nothing)
in this case i wanted a class of random pickups that were just the ammo, battery, or nothing, with the battery or nothing having a higher chance of likelihood because they occupy more pins?

[faint pasture]

First off why are you destroying yourself before doing this

You can just make a data table or array full of your classes

the type would be your BASE item type

[reef crypt]

i had the destroy cause it was spawning the sphere and i thought i would be destroying the sphere -> then spawning the item 😅 '

[tight schooner]

It's in this fat struct

[vivid inlet]

how do i make it so a platform is able to have physics but doesn't collide with the player?
if i have collision on the platform falls like i want, but sometimes it can propel the player forwards.
but if i turn collision off the physics no longer work.

[faint pasture]

Have it ignore Pawn

or whatever channel your character is blocking

[vivid inlet]

Ah, thank you so much! :)

[zealous moth]

holy cow

ty

[tight schooner]

I don't have much experience with it, but you can see if "set members in struct" works or not

[zealous moth]

works

[humble sleet]

brings this to mind
https://en.wikipedia.org/wiki/Dahala_Khagrabari

[long iris]

@wispy lark

[woven moon]

Hello ! Is there a way to show a actor component variables on the actor details panel ?

[tawdry surge]

Just select the component of the actor in the little window above details

[tight schooner]

I get that each line of execution coming from the Switch on Int is kinda trying to load a preset, but the lines don't apply all of the morphs at the end, so

fundamentally the line of execution associated with int #0 isn't going to morph anything ever, e.g.

Maybe you want some new function/event named ApplyMorph or something

and all that does is apply your nose width and nose height parameters

to your skeletal mesh component

Then at the end of each line, you call that function/event

just as one way to structure that for example

Not sure if that's what you're asking for, but at least it will do stuff

[gentle urchin]

Could it make sense to store the morph targets in an array instead..

Not sure i really understood the question/desired outcome :p

[reef crypt]

how would i do this? would i create it within the BP_PickUp? sorry lack of knowledge when it comes to coding and most of this in general, kinda first time with a lot of these

[faint pasture]

If it's your first time just make an array of BP_Pickup classes and fill it with the subclasses

later you can deal with data tables

[pulsar lantern]

So I have a library in C++ with all the blueprint stuff needed exposed, what is the correct way to bring that into a blueprint? Construct node? It inherits directly from UObject

This is what I have currently

[velvet forum]

Hello good morning

i have a problem here
how can i call widget 1 from widget 2 with button click

i want to play aniamtion in widget 1 from widget 2

[junior hedge]

as in it takes off widget 1 and shows widget 2?

then plays the animation?

[naive stag]

im working on a chunk based procedural generation system and im wondering on how I can attach one actor to the chunk, so that whenever for example i move that chunk in game, the actor attached to it will move with it.

[lyric rapids]

how would i make an event ignore a branch until a bool happened

[velvet forum]

sorry can you explane more

[junior hedge]

I am asking what exactly are you trying to do

[junior hedge]

another branch?

lol

[velvet forum]

im trying to make building UI with 2 widgets
1 = main widget
2 = item card

so, in main widget there's 10 "item card" and when i click on card i want "main widget" to play aniamtion

[junior hedge]

create the widget 2 cards then drag it into widget 1, in the event graph of widget 2 create a widget (like how you would in your hud class) and then play that animation using the ref

[faint pasture]

AND the bool into the branch

[naive stag]

please help

[faint pasture]

You already answered yourself

attach it

is a chunk an actor?

[naive stag]

ye

[naive stag]

I did and it didnt work

[faint pasture]

Show how you attached it and also show how you move the chunk

[naive stag]

this is chunks blueprint

[naive stag]

is that enough or do I need to ss something else?

[maiden helm]

so I have this UI with a button that should change the postprocessing material, I need a regular looking image then other one that looks sketchy. I have the material and I linked as Dynamic material on the blueprint, but it doesn't works.

I have tested switching the blending property of the Postprocessing object but it only shows one style and doesn't switch between both style

[lyric rapids]

how would i set a bool to true only if a certain thing from a enumeration happens

[tawdry surge]

enum ==

It's not the math one tho, it's a special comparison operation for enum

[faint pasture]

Looks like you're attaching Plate_Wall to nothing

idk if that defaults to self

[naive stag]

it does. the blueprint is located at the chunk. so parent actor should automatically be the chunk

[faint pasture]

Located AT the chunk, or are you calling this attach node from the chunk itself?

Try pipe Self into the parent actor node to confirm

[flat coral]

Wait so what is the point of filter array if you still have to pipe it to a foreach cast node?

[naive stag]

Oh lol, it did work. However I dont really get what this attachment gives you. Is there a way for me to make those 2 actors the same thing?

[fiery swallow]

It's pretty efficient, It's preferable to use that node when you don't actually need any hard references, but you do want to be sure that they are of a certain class. I use it when I know I'm going to be dealing with BPI's and components that aren't going to be attached to anything specific, sometimes I'll want to filter it depending on the case

[flat coral]

Isn't it O(n) either way?

[faint pasture]

Attachment is attaching

[flat coral]

Oh hey is there a way to include a parameter when you start a timer, for use by the function you're calling?

[tawdry surge]

Same way as any other function/event

[naive stag]

mb my blueprint had some errors so attachment fully didnt work, now it does. Many thanks

[fiery swallow]

Not sure what you mean by that but I'll give you an example of how I used it once. I had an array of perceived actors by the AISightSense. You could scroll through the actors in that array to lock on to them. I wanted to give players the option to lock on to certain targets only if they wanted. So I just filtered the array to quickly get whatever actor of a specific type. It just made the code way cleaner then trying to loop through the entire array and cast each one to x class and then re add them to the new array

[pulsar lantern]

If I have a blueprint function that includes a for-loop, I have two exec outputs.

The Completed for loop, and the last exec at the end of the Loop Body.

Which one does the outlet of the function extend from and can I specify?

[fiery swallow]

@flat coral I feel like it's a clear difference and one is much better in this case
https://gyazo.com/31922379b706d636fb045428cfc8186a

[flat coral]

But it has no input pin for the variable?

[tawdry surge]

You gotta add one to the function or event you are using as a delegate

[runic parrot]

Does anyone know if there's a way to make a landscape out of multiple custom meshes? like this.
Each hexagon is a custom mesh

[flat coral]

I did, it doesn't show up

[tawdry surge]

Hmm, works for by event. can't test function atm

[fiery swallow]

you'll have to create a timer by event that calls the function

[flat coral]

Siiiiiiiiiiiiiiiiigh

Fuck it I'm just gonna rearchitect this whole damn thing

[reef crypt]

sorry for the constant pinging and not really getting it
so i currently have these blueprint classes with B_Basic_PickUp being the parent to the others
the rest are all data-only blueprint classes with their defaults (the SM, name, Icon, etc)
when i place the actual BP_PickUp in the level, in the default shows the dropdown as to which that specific pickup will be
ive been placing the array in Class_Random to spawn the actor based off of a class in the array, though i don't think im approaching this correctly still?

[steep basin]

Help me to understand! I'm trying to make a custom progress bar. I made a widget with a separately filled ring by value from 0 to 1 and placed it in a widget with the main ui, is there any way to add a binding function for a custom value for this widget? An example of a standard progress bar, where you can add a function Binding
Can I somehow add a function "Create Binding", as in the standard progress bar?

[gentle urchin]

Class random being a subclass of basic pickup isnt the intention

Class random is basically just a plain old actor

With an array to pick from

Spawn picked item -> destroy self

[reef crypt]

ohhhhhhhhhhhhhhh my brain is tiny thanks i will try that

[junior hedge]

i dont think you can, either set it via script or create a bind in the other widget

[foggy otter]

guys, is there a way to get all children of a barebones uobject via blueprints?

[worldly notch]

What is the best way to script an event?
Say, I want the player to interact with my character as if it were a story
(Platformer game)

[limber parcel]

is possible to make like a partial class in blueprint?

basically i want to add code to an actor, without actually editing that actor

[fresh sluice]

So you want to change the behavior of the actor without editing it? :D probably not

[limber parcel]

i mean the same file

i want to split up the code into 2 files basically

in c# its possible by making a partial class so im wondering if there is something like this in blueprint too

[fresh sluice]

I guess you could edit the instance of that actor by adding component but that's probably not what you looking for

Partial class o_o

[limber parcel]

not really but components are the next best solution i guess

[gentle urchin]

Components is the closest you'll get really

[limber parcel]

what exactly does it mean for a component to be active?

[lime fulcrum]

Quick Question.
I have a variable from 0 to 1 . Is it ok to use "Get Random Float in Range 0 - 1 and then check if the result is in between 0 and X (Selected value) to find the "Probability Percentage" or is there a more official way?

[gentle urchin]

With even distribution the probability would be equal to your selected value

[limber parcel]

yes, else it would be random int in range

[lime fulcrum]

IT looks like it's working just fine. 😄

[gentle urchin]

So a value between 0 and 0.3 would give you a 30% probability

[lime fulcrum]

yah 😄

[gentle urchin]

If your range is bigger (0 to 1 being just an example) you cqn normalize the range and quickly see the probability :p

[lime fulcrum]

Like this

You input a value you set as probability from 0 to 1 where 1 is 100% then it gets a random float in range 0 to 1 and checks if it's under the Probability then it gives TRUE as result

[gentle urchin]

Id expect the probability to be a float value :p

Not a true false statement

[lime fulcrum]

I need it to give me the bool to know if I will execute something

I set probability as input so it's float

I use the Float input as the probability to see if I should spawn en enemy

[gentle urchin]

Yepp, you're right, im a dumbass 😄

[lime fulcrum]

nah it's fine

[gentle urchin]

For ease of use and no confusion for others

Id make the input in %

[lime fulcrum]

thing is.. if I put 0. Technically 0 probability should never happend but random float from 0 gives the probability 0 to be probable xD

😄

should be Random Float in Range 0.01 to 1

[gentle urchin]

Random float in range is inclusive?

Perhaps it is

[lime fulcrum]

yah, I guess

This should be ok now 🙃

[gentle urchin]

You could add a branch

[lime fulcrum]

so putting 0 will never be chosen

[gentle urchin]

And instead check that the input > 0

[lime fulcrum]

well, that too

[gentle urchin]

Oh well, solves it all i guess

[lime fulcrum]

Damn I just crashed UE xD

[gentle urchin]

But now you removed an entire percent

[lime fulcrum]

I tried to divide by 0

[gentle urchin]

So you cant do 0.05% on something

Like a mythic drop

[lime fulcrum]

It isn't so important to me for it to be so precise

[placid goblet]

Hi, I'm trying to remove an actor component from a blueprint, but UE5 crashes every time. Any ideas why? The logs seem to indicate that it is being treated as a "renaming" operation but it isn't; oddly enough, trying to rename said component also causes a crash.

Here are the relevant logs:

=== Critical error: ===
Fatal error: [File:D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp] [Line: 219] 
Renaming an object (FSM_BP_C /Game/ThirdPersonBP/Maps/ThirdPersonExampleMap.ThirdPersonExampleMap:PersistentLevel.CombatManager_C_1.Combat FSM 2) on top of an existing object (StateMachineComponent /Game/ThirdPersonBP/Maps/ThirdPersonExampleMap.ThirdPersonExampleMap:PersistentLevel.CombatManager_C_1.Combat FSM_REMOVED_EBAB015640C7D044550866A3F1947348) is not allowed

[dawn magnet]

Hi, any idea why my custom bone driven controllers don't work in a metahuman?

[hollow schooner]

Hi all, I am having trouble with a blueprint I am working on.
The goal is to open a car door using a button (either in the UI or using a "Focus Point" Actor in the scene). I've managed to animate the door bone using the animation blueprint, and it all works correctly when I plug in the "Event BeginPlay". Now I would like to remap it so that it gets triggered by the button in my UI. How do I do this? I can find hundreds of tutorials on opening doors, but none cover the topic of referencing and sending data between multiple blueprints.

This is the Blueprint section that currently works and opens the door on BeginPlay:

I was hoping to reference the car model in the Widget BLuepring (UI) using a variable, but that doesnt work

[maiden lava]

Hey Calvin for sending data through multiple blue prints I suggest looking at casting or interfaces. I use interfaces a lot now, still not sure if it's optimal or whatever bit it works a treat.

[high frost]

How do I add a scene component to an actor at begin play? I tried just adding a blueprint node Add Widget Component, but the tooltip says that I shouldn't call it manually

[gentle urchin]

@hollow schooner casting won't automatically fix anything about two seemingly random blueprints communicating. You need something to cast from, a reference to the desired actor. Reference Variables are by default null and must be explicitly updated with a valid reference. This can be achieved in many ways:

• Collision/tracing
• global getters which have control over the given actor/widget
  -GetAll**OfClass (not recommended)

The car model, is that a pawn or something? How is it related to the player with the widget?

[hollow schooner]

Yes its a pawn

The "player" is a separte pawn blueprint

[gentle urchin]

And the widget is created where?

Is this car possessed?

[hollow schooner]

The application is a car configurator where the user can orbit around the car

The BUtton is created in a widget blueprint (a UI interface)

[gentle urchin]

Right, but who creates the widget?

[hollow schooner]

I did?

Not sure I understand, sorry

[gentle urchin]

....

Where does the "create widget" node get used?

No worries

This seem very familiar in general 😅

[hollow schooner]

Im not sure what you mean with the crate widget node. I created a button in the UI and added the "onClicked" event

[gentle urchin]

Right, but some actor must create it at runtime and add it to the screen?

[hollow schooner]

I was hoping to send the "on clicked" information to the "open door" event in the car blueprint

That would the be the widget blueprint

it automatically displays it on screen (as long as its in the scene)

[gentle urchin]

So... a component ?

[hollow schooner]

Im also using it to switch between varient sets of the car

[gentle urchin]

A widget component? Is thag whats used?

A widget never adds itself to the screen automatically

It has to be instanced by some codeblock

Be it a componemt or an explicit call

[hollow schooner]

It's called a widget blueprint in the library. Im still really new, so im not sure about the naming of all these bits and pieces 😒

[gentle urchin]

Right click it, reference viewer

[gentle urchin]

Bp ui builder sounds responsible

Or the car itself(which would be practical in this usecase)

[hollow schooner]

So, what should I be doing?

[gentle urchin]

For now , with limited knowledge/experience about it,

The quickest way to goal would be to let the car create the widget

That way the car could update the variable in the widget on creation

And it would be a valid reference

[hollow schooner]

How would I add the widget in the car blueprint? Didnt know whats possible

[gentle urchin]

In the car bps beginplay

Add a 'create widget' node

In the widgetbp, select the variable for the car, and mark it as "expose on spawn" and "instance editable"

[hollow schooner]

Just to clarify - in the WIdget Blueprint, I have a variable created called "OpenDoor" that uses the object reference of the car. That's the variable I set to "instance Editable", correct?

What do I plug into the "Create Widget" node in the Car Blueprint?

Also, this is the current Widget Blueprint setup:

If I use the WIdget Blueprint in the Car's "create widget", I get access to the varaible

Unsure of what to plug into it though

[gentle urchin]

Open door is a bad name for the variable

Its a reference to the car itself

On clicked you drag from the car reference and call the OpenDoor event in the car

[hollow schooner]

What do you suggest I call it?

[junior hedge]

You need to plug the door rotation into A

[hollow schooner]

What are you referring to? The door animation works fine, I am just trying to trigger it with a button

[gentle urchin]

Being a car reference, what about... CarRef?

😅

[junior hedge]

UI button?

[hollow schooner]

Just to clarify - we are in the car blueprint

[gentle urchin]

Guess i got confused

[hollow schooner]

For example. I might change it to a 3D widget in the viewport later down the line, but for now I just want to understand how to send a command from one blueprint to the car, to open the door

[gentle urchin]

By the widget variable

Which is what i thought we were talking about, for now

[junior hedge]

In the UI bp when you click just get the car actor and plug in open r door

[hollow schooner]

That is exactly what I want to do. But it doesnt work.

[junior hedge]

Show the UI bp please

[hollow schooner]

I created a button using the UI Blueprint and then created a "OnClicked" event

I then created a variable that is using the object reference of my car

[junior hedge]

Ok so on construct create a "get all actors" node

"get" the value 0 from the array

[hollow schooner]

In the Cars Blueprint or in the Widget (UI) blueprint?

[junior hedge]

Widget

Then when you get the 0 index in the array promote that info a variable

That will be your reference

[hollow schooner]

I believe I already have those first few steps setup for my varient sets:

[junior hedge]

Now do it but this time for your car bp

Literally exact same thing

Then where it shows on click, drag your newly created ref and call onto the "open r door" with it

[gentle urchin]

Bad practise but for a car configurator i guess it doesnt mean the world

[hollow schooner]

Like this?

[gentle urchin]

This doesnt do anything

[junior hedge]

No set it on construct

[gentle urchin]

Youre just setting the ref to itself

Which doesnt make much sense :/

In the car bp theres an event for open door

This is the event you should call

In the widget..

[junior hedge]

That's what I said

[hollow schooner]

I'd love ti

thats the issue Ive bene having

how does that work

[gentle urchin]

Drag from the open door

[hollow schooner]

Im sorry for being such a pain by the way

[junior hedge]

The right blue dot in the car set variable

[gentle urchin]

Search for "open door"

[junior hedge]

Drag onto it

Type open door

[gentle urchin]

(This is why the variable name is bad)

[junior hedge]

I mean he's trying to get an example

No need to cherry pick

[gentle urchin]

I know he is

[junior hedge]

Just gets off topic

@hollow schooner any luck?

[hollow schooner]

like this?

[junior hedge]

Mc laren isn't a real ref afaik

Delete it

Useless

[hollow schooner]

Here is everything in one frame

okay

I cant connect the two blue dots now

[junior hedge]

You need to actually cast or to get the actor to set a variable like that

Ok so

Inside the car stuff node

[gentle urchin]

No need to cast

[junior hedge]

The right blue dot

[gentle urchin]

Its already type checked

[junior hedge]

Drag it out

Type in open r door

Oh

[gentle urchin]

Because of the variable

Open door

[junior hedge]

You aren't getting the car actor@hollow schooner

[gentle urchin]

He will get thag in the result list

Being of the same type as the actor ref dragged from

[junior hedge]

You need a new get all actors of class node

And select your car actor

[gentle urchin]

Just use the exposed widget variable

Why confuse him more...

[junior hedge]

What are you talking about

[gentle urchin]

We exposed the car ref long time ago

So its accessible from the car. Which creates the widget

[hollow schooner]

like this?

[junior hedge]

Is mc laren your car actor?

[hollow schooner]

Yes

[junior hedge]

Ok

Drag it of the dot

Type in open r door

The bottom right side dot of your "Open Door" set node

[hollow schooner]

liek that?

[junior hedge]

Sure whatever

That should work

[hollow schooner]

HOLY BANANS

it works

Jesus

[gentle urchin]

Atleast now its the right event call

[hollow schooner]

guys Im so sorry for my incredible noob-ness

This is a setup that I actually understand

[junior hedge]

There are many ways to cast btw

[hollow schooner]

thank you for your patience and time

[gentle urchin]

Id suggest checking out the blueprint communication tutorial

[hollow schooner]

I shall

[gentle urchin]

Casting is not the issue here.

[hollow schooner]

I only started with UE last week so my understanding of the different concepts is still very limited

[gentle urchin]

(My typos might be lol)

[junior hedge]

It's fine

It's 4am

[gentle urchin]

10 in the morning here

[junior hedge]

Rip

[gentle urchin]

Outside, trying to get baby to sleep

[junior hedge]

@hollow schooner also if you are trying to get multiple UI refs just get the HUD class bp instead of individually casting them

It's when you do the promote to variable

When you add those uis to viewport you should be promoting them

[limber parcel]

the variables:

[junior hedge]

Lol

[gentle urchin]

Generally id avoid get all actors of class aswell

[limber parcel]

smarter to save groups of actors in an array in the gamemode or something

[junior hedge]

^

[hollow schooner]

Are you guys aware of any good videos that explain the concepts of all of this well? Most tutorials that I've seen are either way too high-level or a bit too advanced for my current knowledge (e.g. the 2h long blueprint lecture from UE)

[junior hedge]

I watched like 1-2 hours of videos and then just started experimenting

[limber parcel]

of what exactly?

[junior hedge]

People here are here to help especially like me

[hollow schooner]

Here's the application in its current state

[limber parcel]

people help me and in return i get helped by people 😄

[junior hedge]

You are downplaying yourself tbh

Looks very well

[hollow schooner]

What is the difference btween Event Graph and Construction Script. Whats the difference between variable, funciton and event

etc.

[junior hedge]

Construction scripts are instant

[limber parcel]

havent really found a video that explains all of this

construction script runs in editor

event graph not

[junior hedge]

Oh

Mb

[hollow schooner]

Im suprised I got so far. To be fair, I've been banging in my head fo rthe past 1.5weeks trying to understand what Im doing. My brain has been on fire non-stop

[junior hedge]

I didn't read right

Functions are instant though

If you mean the on construction event that happens when the UI is added to viewport

[limber parcel]

i actually have no idea what exactly is the difference between events, functions and macros, i only know that macros are shit and events have more functionality than functions so i usually end up using events for everything lol

[junior hedge]

Idk anything about macros

[hollow schooner]

lmao

[junior hedge]

I do know functions are instant though

[limber parcel]

what do you mean?

[tight schooner]

yeah functions have to be instant or else they couldn't produce an output on demand... it's part of what defines them.

@limber parcel You can't put a "latent" node in a function (delay, etc). BP waits for the function to finish executing before moving on to the next node

[gentle urchin]

Construction script is ran when constructed

[junior hedge]

Event graphs aren't on a timer from what I've heard

[gentle urchin]

While beginplay runs when game starts

[junior hedge]

Functions try to get stuff done asap

[gentle urchin]

And the actors beginplay starts

[junior hedge]

That's very vague tbh

No offense

[limber parcel]

ok makes sense thx for explaining

[hollow schooner]

Do I understand correctly that functions are basically node trees (actions) that you create yourself that you can use in the event graph?

[gentle urchin]

Its sorta in the name. First the object is constructed. Then its put into play

Whats vague about constructed?

[junior hedge]

Well I don't find it confusing but I probably wouldn't learn anything with an explanation like that lol

I probably think they are asking what exactly construction means if that makes sense

[limber parcel]

that is correct

[tight schooner]

well, that description could apply to macros, functions or even collapsed graphs. Functions and events are the only things that can be inherited, overridden, and called externally (from another BP)

[limber parcel]

yeah i was about to say xD

[tight schooner]

Functions can also produce an output when called, unlike events

[hollow schooner]

That information already answeres a lot of my questions

[junior hedge]

Think of it from a programming perspective if you can

Helps alot

[limber parcel]

my advice for macros: just stay away from them xD

[hollow schooner]

One more question I have regarding the "open door" button.

If I want to close the door again - do I set that functionality in the Car Blueprint or in the Button BLueprint?

[limber parcel]

wherever u set it to open

[hollow schooner]

Sorry, but that's absolutely not going to be possible 🤣

[junior hedge]

You would just create a boolean or flipflop and do the same thing essentially

[junior hedge]

See that "reverse" button?

Perfect for closing it

[hollow schooner]

Using another custom event?

[junior hedge]

You would just create a new custom event called close r door and plug it in there

[hollow schooner]

perfect

[limber parcel]

can widgets use interfaces?

[junior hedge]

And then call it from the bp using either a branch + boolean or a flipflop

[hollow schooner]

Like this?

No, that doesnt seem to work just yet

[junior hedge]

Yes but you need to actually create a variable

[hollow schooner]

Ah

of course

[gentle urchin]

Or move the flipflop to tge car, rename tge event Toggle door. And do it that way

[junior hedge]

Then one true set the variable to false and vise versa

[junior hedge]

Also could work

[gentle urchin]

Car knows the state of itself, so widget doesnt need to

[hollow schooner]

okay, so what would I use for the condition?

[storm dove]

yo! can i convert selected actors into blueprints (with base class) each separately?

[gentle urchin]

Replace with flipflop

[hollow schooner]

Ah right, didnt know that was a real node lol

Works, perfect, you guys are awesome

[limber parcel]

same xD

[hollow schooner]

Now the same for Left foor, but that should just be copy/paste

[gentle urchin]

Flipflop is a branch and a bool 😅

[junior hedge]

If you wanna do it that way you could just create a boolean

Like a new variable

Name it anything

Then on the true you would set it to false and on false you would set it to true

[hollow schooner]

because these things arent already confusing enough lol

no but thats great, you guys are giving me loads of great info, really appreciate it

[placid goblet]

bump, any ideas?

[hollow schooner]

maybe access directly from file explorer

and remove from there

[junior hedge]

The reaction? Lol

[tight schooner]

If you mean replace with an existing class in a level design sense, you can right click on an actor and "replace selected actors with..."

[gentle urchin]

Youd probably wanna read up on inheritance aswell. Would fit nicely to a car configurator

[hollow schooner]

Cheers, I'll check that out!

[dark harness]

Anyone know of a way to mass re-parent all BPs of a certain class?

[gentle urchin]

Reparent their common parent

Unless thats Actor. Then you're doomed :p

Perhaps mass edit via property matrix?

[dark harness]

their common parent is a C++ class... so almost the same as Actor 🙃

[gentle urchin]

For clarification, this is what i suggested doing ;

BP MasterCar creates the widget, and passes a reference to self to the widget's variable "Car Ref", which is marked instance editable and expose on spawn

this means that when you access that variable inside the widgetBP, it is already updated and valid

[hollow schooner]

Alright guys, I got another question.

How do I exclude a mesh from being selectable in-game, but still contain collisions?

Basically, my car is using a branch to switch from throttle to brakes. It uses a "LineTrace" to detect an object. If it traces teh object, it enables the brakes, and stops on the platform.

The Object is invisible (the "visible" check box is disabled).

The problem, I currently have, is that my camera pawn can move to objects to inspect them, by selecting them. In this, it can also move the my LineTrace-Collision mesh. I dotn want that. Any idea how to exclude that mesh?

I believe this is the section in my CameraPawn Blueprint that is responsible for the movement:

[gentle urchin]

Only thing left for the widget to do is call the event

[gentle urchin]

If you're using a linetrace to determine what object to focus to, you can filter the hit's there to make sure its focusable

[hollow schooner]

Yes I am using a seperate line trace for the CameraPawn

[gentle urchin]

Which is feeding the actor reference in the "MoveToFocusedActor" , right?

[hollow schooner]

Although Im onl yusing it for the Depth of field, sorry

[gentle urchin]

What is calling the "MoveToFocusedActor" event ?

[hollow schooner]

This, I believe

[gentle urchin]

Open the "check if Hit Actor" function

[storm dove]

yeah but i've got 100 of them, can i do them all separately?

[storm dove]

also that doesnt merge the selected actors, it just replaces them with another

[gentle urchin]

the easiest thing to do without adding collision channels or modifying them, would be to add a tag

to the actor that can't be focused (or those who can be focused, whichever is less work)

[hollow schooner]

How and where do I add a "tag"?

[gentle urchin]

open up the "Object" blueprint (assuming there is one)

then in the "Class Defaults" you search for tag

[hollow schooner]

Of the object that i want to exclude?

[gentle urchin]

Or those to include, whichever is less work

[hollow schooner]

its just a simple box, so no BP

let me thibk

[gentle urchin]

simple collision box?

trigger or smth ?

[hollow schooner]

I think I'll add the tag to the meshes I want to be able to select

[gentle urchin]

anything placed in the world that has a transform is an actor

[hollow schooner]

In this case the car

so, in the car BP i wadd the Tag?

[gentle urchin]

yeah

And on linetrace hit, check if the hit actor has the tag

like this

Replace "None" with the desired tag

[hollow schooner]

Okay, and I'd add that to my "check if click hit act or" function, correct?

[gentle urchin]

That's what I'd do ,

But it depends on if you're using this function for other things aswell, where this would not apply

If this is the only use case you have for it , then inside the function is fine

if you have other use cases where this does not apply, you can either do it outside the function, or create a separate function, with the tag as an input

like this perhaps

[hollow schooner]

Like this?

I'm getting the following error now, and AFAIKT nothing is selectable anymore:
Blueprint Runtime Error: "Accessed None trying to read property CallFunc_BreakHitResult_HitActor". Node: Return Node Graph: CheckIfClickHitActor Function: Check if Click Hit Actor Blueprint: BP_CameraPawn1

[gentle urchin]

You forgot to check if there was a hit

Also, You should check if the actor has the tag before returning the actor*

sorry about that, i was a tad quick about the screenshot 😛

the last one is correct

for a generic trace

this would be mouse trace

[hollow schooner]

hmm, still not quite working. I dont get the error anymore though

Nothing is selectable right now

[gentle urchin]

You're connecting the wrong bool

[jagged stone]

Is there any blueprint for "InArray" and "NotInArray"?

For example if a name in an array of names

[gentle urchin]

No nodes for that sadly

[hollow schooner]

Oh, I didnt see you have two branches in your screenshot, sorry

[jagged stone]

😐 I guess need to make a general function for it (seems like that would be a basic function)

The pain is your have to make a function for each data type

[gentle urchin]

I mean..

you can "find"

which will give you what you want

Not sure why i didnt think of that xD

[jagged stone]

oh i see, yeah that works (sorry thought find was only for maps), thanks

[hollow schooner]

IMO my setup is the same as yours, but still, nothing is selectable o.O

[gentle urchin]

Have you added the tag to the selectable actors?

[limber parcel]

are there any good tutorials on using actor tags efficiently?

[hollow schooner]

Yes, Or should I not use the "Mesh" component?

[versed rune]

You have to add the tag in "Actor tag", not component tag, they're different 🙂

[versed rune]

And here for example you're looking for the actor tag

[versed rune]

So here you should click the actor (the first in the component list) and in details search for actor tag

[hollow schooner]

Awh man, thanks for pointing that out. So many damn variables and little differences to look out for 🙈

[gentle urchin]

If you want it on a per component basis instead, you can check the hit component for the tag 😛

[hollow schooner]

Since I added the tag to the component, my pc is frozen (writing from phone app ATM). Is that normal? 😕