blueprint

[hidden yacht]

I had Third person character BP inheriting a C++ default class that was created automatically when I created the project , was called "PROJECT_NAME_character"
So I had inheritance/parenting like this :
MY_PROJECT_NAME_Character ( it had a lot of implementation in it ) >> BP_ThirdPersonCharacter (Possess/Unpossess logic in it)

so I created a character BP, called BP_Humanoid_Character that inherits "Character" , then reparented ThirdPersonCharacter BP

now I have :
Character (Default ACharacter) >> BP_Humanoid_Character (Looking to map controls in here, dunno how) >> BP_ThirdPersonCharacter ( (un)Possess logic inside)

The actual pawn in the scene being spawned is a ThirdPersonCharacter, so it gets the whole inheritance chain applied.

• BP_ThirdPersonCharacter has the possess / Unpossess I showed earlier
• BP_Humanoid_Character has practically nothing in it (maybe should call parent class methods ? )
• Character is the default ACharacter implementation and I have not touched any C++ line in it.

out of the box, should this be able to move the character ?

The input actions and IMC_DEFAULT for the character were working fine before i refactor the structor of inheritance (except that it works even without assigning IMC_default through nodes ) which made me think that stuff is happening in the C++ file named after the project. I wanted everything to be Blueprints, so i refactored...

I must be missing something here to tell the character how to move based on the inputs ?! i dont know

@undone bluff

[ruby wedge]

hi

[ruby wedge]

im editing blueprint sequence, i try to save it but doesnt change anythink still old anim... how can do ? "Apply Compression" button doesnt work

what can i do for this issue?

[ocean pier]

I tried to set game paused but it also paused the countdown timer so the game is just frozen

[shut yew]

It doesn't spawn in

[undone bluff]

ACharacter does not handle input in any way

you are definitely adding an input mapping context somewhere

[silk cosmos]

This used to work differently in ue4, I believe in ue5 after you apply your key frames you can select create asset and create a new animation with the applied keyframes. create asset -> create animation -> current pose should be what you're looking for

[undone bluff]

and that somewhere would generally be the player controller

[lofty rapids]

makes sense so use a boolean on the stuff you want to stop

[ruby wedge]

okay thanks..

[dawn gazelle]

If you have a C++ class named "MY_PROJECT_NAME_Character" then your BP_Humanoid_Character needs to inherit from "MY_PROJECT_NAME_Character"

[ocean pier]

ok thanks I'll try that

[undone bluff]

they wanted to refactor things to be blueprint only and based on the default ACharacter class

[hidden yacht]

i no longer use the project_name_character, but rather a BP_Humanoid _character which inherits default character blueprint ( based on ACharacter)

call it the base BP for all characters, then I inherit it to have a child BP called ThirdPersonCharacter

I can merge 3rdPerson and BP_Humanoid , maybe less headache, but it's probably not the root issue here

[undone bluff]

no it's unrelated

the mapping context is added to your player controller

[hidden yacht]

when i hit play, i get the idle animation and camera position, BUT no movement controls working

[undone bluff]

it doesn't matter which character you are using

[hidden yacht]

but depending on what pawn I control, different input contexts will be added / removed

[undone bluff]

so, are you adding an input mapping context on begin play?

[hidden yacht]

Player controller BP :

it does call respawn character on the client through RPC

[undone bluff]

ah actually you had some on possess logic

I think

in your character?

[hidden yacht]

yes

so the SPAWN on server ends with a POSSESS

and that triggers on client to map inputs

[undone bluff]

since you are doing networking

I see you're getting player controller of index 0

you want to use the reference from the Event Possessed node

because every player has their own controller

[hidden yacht]

end of chain of the SPAWN CHAR on server

actually, look :

only includes local players on a network client

which is unique

[undone bluff]

ah that's a good call

[hidden yacht]

getting that ref from server will return null

[undone bluff]

I worked on local multiplayer so that's still stuck in my head I guess haha

[hidden yacht]

yeah, local MP might be trickier with hosted sessions

acting as client and server at the same time

[undone bluff]

did you make sure that the mapping context in the variable is the one corrosponding to the movement input actions you implemented?

and just in case make sure that your input mode is set to game only

[hidden yacht]

where do I set Game only ?

[undone bluff]

I like to use a set input mode game only node on event possessed because it makes it so you don't have to click every time you play in editor

if the input mode is something else the player controller will not receive the input

[lofty rapids]

this ?

[hidden yacht]

You can see on the right, the default for that var is IMC_Default

[lofty rapids]

the events are firing ?

[undone bluff]

what about your movement implementation?

what are you doing with the events?

are you sure they are the correct events from that mapping context?

you can have two with the same name so make sure to hover over them and check the file path

[hidden yacht]

that's why I asked about those red events on the left in the function list

in the character BP and Player controller, I am not doing anything

[undone bluff]

ahh I see

yea so as I said the character does not do anything with input by default

[hidden yacht]

comparing with BP_Vehicle (which works fine ) I found out that there was a part missing in my character BP, I am not telling it to use this input for that action

[celest trench]

How would I add a unique variable to the array when I am trying to set members in the struct? Does add unique update the struct as well or do I need to somehow pass that into the set members node?

[undone bluff]

the character movement component takes input from the function "add movement input"

and does everything for you

but you need to call that function

[hidden yacht]

I have NOTHING in character BP that looks like this part in BP_Vehicle

those red nodes are nowhere to be found on character BP, names were matching with input actions and stuff

[dawn gazelle]

Can't do it this way. The "Find" node returns a copy of the array element, as does the "break" node - you'd be getting a copy of the array. You'd first have to promote the "Spawns" array to a variable, add something to it, then set the value into the "Set Members In" node.

[undone bluff]

yea this uses its vehicle movement component and passes it the input to do things with

you need to do this in your character with the movement component

[hidden yacht]

on a side note, was alll this done in code on my old PROJECT_NAME_Character file ?

[undone bluff]

presumably

this is set up in the default third person template so you can copy that if you want

[hidden yacht]

the default behavior was fine until I refactored lol

but I wanted it in BP not c++

so does it exist in 3rd person example IN BP ?

[undone bluff]

if you make a third person template bp project it'll be set up in blueprints

[grim sand]

Quick question about BP's with the spline component. I have disabled tick in those BP's (as it is only responsible for placing meshes through the construction script), but what does this mean inside of a build?

If I recall correctly, everything in the construction script is figured out during the building process, so there is no actual load on the game during runtime besides in the render thread for the static meshes. Is that correct?

[undone bluff]

if you create it at runtime the construction script will be run at runtime

it's only baked if it can be

[grim sand]

I do not create it at runtime. I create it in the editor, and then once packaged, it is loaded in once the level loads, but nothing is altering this BP afterwards.

[undone bluff]

yea then the result of the construction script is just baked into the actor itself

[hidden yacht]

@undone bluff : I dug up the old project_name_character cpp file, i found parts for input

//////////////////////////////////////////////////////////////////////////
// Input

void AProjectNameCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
// Set up action bindings
if (UEnhancedInputComponent* EnhancedInputComponent = Cast<UEnhancedInputComponent>(PlayerInputComponent)) {

    // Jumping
    EnhancedInputComponent->BindAction(JumpAction, ETriggerEvent::Started, this, &ACharacter::Jump);
    EnhancedInputComponent->BindAction(JumpAction, ETriggerEvent::Completed, this, &ACharacter::StopJumping);

    // Moving
    EnhancedInputComponent->BindAction(MoveAction, ETriggerEvent::Triggered, this, &AProjectNameCharacter::Move);

    // Looking
    EnhancedInputComponent->BindAction(LookAction, ETriggerEvent::Triggered, this, &AProjectNameCharacter::Look);
}
else
{
    UE_LOG(LogTemplateCharacter, Error, TEXT("'%s' Failed to find an Enhanced Input component! This template is built to use the Enhanced Input system. If you intend to use the legacy system, then you will need to update this C++ file."), *GetNameSafe(this));
}

}

void AProjectNameCharacter::Move(const FInputActionValue& Value)
{
// input is a Vector2D
FVector2D MovementVector = Value.Get<FVector2D>();

if (Controller != nullptr)
{
    // find out which way is forward
    const FRotator Rotation = Controller->GetControlRotation();
    const FRotator YawRotation(0, Rotation.Yaw, 0);

    // get forward vector
    const FVector ForwardDirection = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::X);

    // get right vector 
    const FVector RightDirection = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::Y);

    // add movement 
    AddMovementInput(ForwardDirection, MovementVector.Y);
    AddMovementInput(RightDirection, MovementVector.X);
}

}

void AProjectNameCharacter::Look(const FInputActionValue& Value)
{
// input is a Vector2D
FVector2D LookAxisVector = Value.Get<FVector2D>();

if (Controller != nullptr)
{
    // add yaw and pitch input to controller
    AddControllerYawInput(LookAxisVector.X);
    AddControllerPitchInput(LookAxisVector.Y);
}

}

[grim sand]

Awesome, thanks for the clarification!

[grim sand]

You might want to put this into code block formatting in discord to avoid clogging the chat, and for better readability

[undone bluff]

(``` before and after )

anyways, yea this is just receiving the input and then passing it onto the move function which gets the correct rotation and then calls AddMovementInput, which the movement component reads and uses to make the character move

third person template does the exact same thing in blueprints

[hidden yacht]

found it in a new project as BP

that gets me to my old question, to insert that node on the left (EnhancedInputAction IA_Move for example) , how ?

what tells the BP that it should get it from input mapping files already in the project

[undone bluff]

you should be able to find it pretty much anywhere over the search

[undone bluff]

you are adding the mapping context, which determines which input events are sent out by the enhanced input component

by placing the input action you are subscribing to receive these events

[hidden yacht]

using this :

will make the graph get the evnts as nodes ?

[undone bluff]

you can place the nodes even if you do not add the mapping context

are you not able to find them?

[hidden yacht]

i was not

now i could

[undone bluff]

ah, well, this event is called as long as the corrosponding mapping context is added to the player controller, that's it

[undone bluff]

from there you do what you want

[hidden yacht]

was using the wrong search filter

[undone bluff]

you got it

[hidden yacht]

Well, i can't say I did alll this on discord for nothing, I learned it the hard way haha

At least I knew that ACharacer does not touch inputs

and that it was done in CPP

and that the example project as BP had them already !

Thank you @undone bluff and all who contributed to this

[undone bluff]

np, it was a little bit rocky but we got there

[topaz gazelle]

How do you guys go about getting references to actors that are placed in the editor? For example if you wanted a light switch to know about all the lights in a room. I would like to be able to put all the objects in a single blueprint but it seems some actors aren't meant to be used as components.

I'm using a box collision inside the light switch blueprint and adjusting the size of the collision inside the editor to match the size of the room, then enabling/disabling collision to see what overlaps.

But that feels wrong.

[undone bluff]

I use public arrays of actors, I have one parent class for all things that can be connected as the type

if I want to make a switch activate a light I click on the switch, in the details panel add an entry to the array and use the eyedropper tool to select the light

the switch, when activated, loops through every actor in the array

and sends an activate interface event

hell, because of that parent class you could even do casting safely

[tiny aspen]

I'm working on creating a Float Curve using the Curve Editor. I'm describing a curve that starts at 0, starts falling as if by gravity until about 80%, rests there briefly, and then curves into a linear curve to the end point. I'm struggling to capture what I want with the tool. It appears that making a node linear only impacts the right side of a node. If I select the node on the right side of the linear part, and use cubic interpolation with user broken tangents, then I can I can tweak how the next part of the curve is shaped. In other words, I can get a tangent handles for the node on the right side of the linear part, but not for the node on the left side of the linear part. I really feel like I am missing something, but I can't even find a resource that mentions this limitation. I can successfully created what I want by creating the entire curve backwards and just using it slightly differently in my BluePrint. What am I missing?
EDIT: For future searches. Don't use linear part, just use cubic interpolation with user broken tangents everywhere, it is not hard to align the two tangents to make the linear part.

[topaz gazelle]

@undone bluff I'm not sure what you mean that you have one parent class for all blueprints. Are you referring to re-parenting in the class settings? When I've tried that, it sets the child class the same as the parent class. Meaning I couldn't parent a Character to an Actor without losing the character's inheritance.

Or the lights should be parented to the switch.

[undone bluff]

it means I have a class that defines anything necessary for connectivity to work

and set that as the array type

[rugged wigeon]

Sounds like the sort of thing that should be a component, not a class hierarchy imo

[undone bluff]

I disagree

[topaz gazelle]

That's really intriguing but I still don't understand. Would you be willing to screen share an example?

[undone bluff]

searching by actors of class is efficient and a convenience you'd lose (especially if you do electricity stuff and need a system that manages these, some emp effect that disables electronics etc.)

I don't see the benefit to a component, but it does dependent on the game

also part of the point is to provide the accessible arrays of references

which you can't with a component

and you're limiting the addition of references to the array to only valid types which is just good practice

[placid bloom]

Do you want to see a funny meme sir

[undone bluff]

hit me

[undone bluff]

I was expecting something related to the topic and I already know this one 😔

[undone bluff]

it's really simple, add an array that holds references to your light actors

use that instead of the box setup

when the array is public you can see it in the details panel and add the lights per instance

[placid bloom]

Do you want a better one

[undone bluff]

ups replied to the wrong person

this is what I meant to reply to

[rugged wigeon]

searching by class is NOT efficient. That's sort of the idea behind ECS.

ignoring ecs, the question comes down to whether the game can really expect all electronics to be the same base class. If it's all just static interactables, then maybe it's fine. If you want to have some of them be robots (pawns) or cyborgs (characters) then suddenly this solution would not work.

[topaz gazelle]

I can see how the level blueprint can set references to objects placed in the world (using the eyedropper), but I don't see how you can do this in a custom blueprint.

[rugged wigeon]

you don't do it for a custom blueprint (the descriptor of a class), you do it for a specific instance of the class that is placed in the world

[undone bluff]

no it is efficient, it's good to take a different approach, but if you need it getting all actors of class is decently fast (depending of how many actors of the class there are ofc) and you can sphere overlap with a class filter

[topaz gazelle]

I see what you're saying. I'm not trying to set the blueprint or class as the reference. I am indeed trying to set the instance of the blueprint as the reference. But I am unable to figure out how to set that instance as the default value for a variable. In the level blueprint, this is easy to do with the eyedropper tool, but I can't seem to figure out how to do this with a custom blueprint.

[rugged wigeon]

class filter doesn't really change anything under the hood. It still has to loop over everything and check if it obeys the class filter rule.

not very different from checking if it has a component

[undone bluff]

yea that is a good point, since we are in the blueprint channel though it is much better than a blueprint for loop

[rugged wigeon]

You can't set the "default" for a class to be something specific in a specific level. Otherwise it wouldn't work in any other level.

You need to put the instance of the bp into the level

[topaz gazelle]

thatt makes so much sense.

[rugged wigeon]

then set that specific instance's value

[topaz gazelle]

A million times thank you.

[rugged wigeon]

crude example from my game.

the instance of unit can use the eyedropper to set an actor ref Target Enemy

[undone bluff]

the inheritance from the base class is pretty much just the interface, variable setup and a few functions, you can do the latter in a component but it really doesn't seem like a great approach and you'd have to redo the first two for every new object you make

the component based setups I've seen are super inconvenient to use

but I'd be happy to be proven wrong

[fleet sigil]

How would I set up a text renderer to have set bounds so that this doesn't happen. I don't want to limit the length of the text that can be input but rather where it is actually visible? pls @ me

[cobalt gulch]

How can I make a level system where it goes up from level_1, level_2, level_3 etc and at the end of the level you press a button to go onto the next level, without having to make a "map name = level_2" branch for each level?

Can I just +1 on the level name to choose it for example?

[rugged wigeon]

no, it's basically the same amount of work. You would add your component, and it would call the interface, which the BASE class of your static electronic interactables calls the events that you're already doing in your current setup. Then everything just functions the same for the rest of them with usual inheritance.

the difference being that if you want to include, say, a pawn that can interact with the electronic system, now you can just add that component and implement the interfaces too. It is good to use inheritance for things that logically inherit. But often that can't be everything

[undone bluff]

I'm not sure I follow, are you suggesting combining class inheritance and components?

[rugged wigeon]

Base class has the component. Component calls interfaces on owning parent. Base class handles interface by calling base class events.

Child classes override those events and never think about the fact that they're going to be called by an interface again.

And so if you end up wanting static electronics and robots, you're probably just going to have those two unique base classes which have the components and handle routing the interfaces.

[undone bluff]

makes sense

you can still do everything that requires class based inheritance, but communication is handled between components so you can expand beyond that base class if needed

he explains it right in the video?

[rugged wigeon]

yes exactly

[frail onyx]

oh oop, i was watching a dif video about it and i just got a link for hit newest vid cause the thumbnail was a good representation of it

ill check it out

[undone bluff]

haha, good luck

the explanation is decently thorough from what I saw

[dark drum]

It's interesting you mentioned an electronic system. I recently overhauled an electric/power system that was originally done using class inheritance. When I overhauled the system, I used a component that I put on actors I want to consume power. The component registers with the relevant manager and receives the various messages and the actor just intercepts some of the messages to perform actor specific actions. (Update materials, lights etc...)

[frail onyx]

thx

[rugged wigeon]

Yep. sounds about right.

[undone bluff]

would you suggest a global manager that registers systems or one manager per system?

[rugged wigeon]

The good thing here is that it's not a particularly big lift to eventually make it all a component based system. You just swap the initial hooks to be interfaces.

the original class bp inheritance is probably 90% stable

[cobalt gulch]

Can anyone help with this please

[dark drum]

Personally, I would do a manager per system. You can always have a manager manager if needed lol.

[finite hearth]

Hey Friends, I am observing some funky editor behavior and I could use a hand: v5.3.2

When I open the editor, there's a rollback - it's always the same change that is reverted - the transform of a widget component. I've recompiled the parent and child object but if I save, close, and reopen my project - the change will be reverted. This one just won't stick.

I am using GIT for source control, but have observed this issue regardless of commits or lack thereof.

[undone bluff]

I was honestly hoping to not work with a manager and just have each connection only be aware of its direct connections

I guess it depends on how big you go

I was generally only thinking of power source > trigger > device at most

[dark drum]

Not everything needs a manager, just depends what it's doing. Sometimes it nice to have though so it's easier to get references out of thin air lol.

[undone bluff]

right, and it'd be much more efficient with big systems

lots of optimization you can do

[dark drum]

Is it just to turn things on and off?

[undone bluff]

some switches can have integer states but I like to think of that as separate to power

[dark drum]

If it's not actually power but more of toggling on and off (or cycling through different states) I would just use an instance editable actor array and use an BPI interface. When you interact with the switch it loops through the actors and calls a BPI function on them.

When the switch is in the level, you then populated the actor array of what you want the switch to control when interacted with.

[undone bluff]

I think where the manager becomes necessary is power consumption

[undone bluff]

that is exactly what I suggested the person that started this talk haha

[dark drum]

Definitely.

[rugged wigeon]

make a function to create the string "level 2"

[lofty rapids]

name your levels with a prefix and the number, then when you load the level by name format text that has the current level as an integer

[chilly plover]

Still stuck on getting the slot name for the game loaded

[dark drum]

?

[dark drum]

I would use a widget component instead and have the widget get the text. It's easier to set bounds on the widget.

[undone bluff]

yea, this, make the screen a widget

[undone bluff]

actually I'd add a editable per instance variable that holds the name for the next level to the button

you can increment the level name

[cobalt gulch]

Gotcha

[undone bluff]

but it's inflexible and not a fan to be honest

if you happen to have a level selection you probably have something that holds all your levels so you can also use that to select a level from to make it extra convenient

[cobalt gulch]

yeah

I need like a list of the levels

and in the correct order

[undone bluff]

it's convenient, I have one set up for loading screen text and other per level data I might need

if all you want is a numbered list use an Enumeration

when you add a public variable with its type set to the enum you made you will be able to select the level from a drop down

or you can pick an index in the enum from an integer

while still being able to call the level names whatever you want as long as you update the enum

[rugged wigeon]

Ok actually, just store the level number on the game instance, increment that by one, and retrieve the next level name from it as needed

[lofty rapids]

you could use a prefix and the current level as an integer

atleast that's what i used

when open level by name, you just increment the current level integer

level_1, level_2, etc...

and you could load any level easy by just putting in the level number

i would even just make a function like loadlevel and pass it an integer

that way you can just increment and keep going

or warp to whatever level you want

[cobalt gulch]

I might try this but with the suffix

[lofty rapids]

sure either way would work i would imagine

you could even squish it between both

[sterile fjord]

I'm trying to build a runescape-like minimap within the topdown project example, but am running into a couple deadends I don't know where to go with:

1. I'm using SceneCaptureComponent2D over the top of my character for minimap view, but need to figure out how to render it unlit on my texture/material or remove shadows somehow
2. I have a border image layered under the minimap in the UI Widet that I'd like to be able to grab the corner of to resize the map
3. I need to figure out how to translate a cursor click on the map into a world position that the existing TopDown example movement system will use as the next point

[zealous comet]

how do i hide a child actor component from only the owner. i tried owner no see but child actor components dont have that option.

[silk cosmos]

Try and use an actor that you spawn and attach to a component on your actor instead. child actor components are buggy and broken

[thin panther]

@sterile fjord @zealous comet read the #rules on crossposting

[zealous comet]

no one awnsered it so i felt it should go in a more specific channel

[thin panther]

That's fine, you should just remove the previous one 🙂

It's also quite late, so activity plummets around this time

[fringe perch]

Hi, I was wondering if i could find any help as to why my BP isnt working... When they collide they're both supposed to switch but I'm not sure as to why the target isnt registering properly?

[thin panther]

something's wrong there

The target node on a variable get is for something you're accessing from another bp

So the reference to self being plugged into the variable is a logical fallacy

You're saying
"Get me a variable from a bp that isn't this one"
"Ok which one"
"This one"

[rugged wigeon]

That’s not quite right. At no point does this say “not this one”.

[thin panther]

Yes it does

[fringe perch]

Thanks for the response, but when I run it it goes through that node fine, its actually the ones after when I try to reference the other copies that does work as I intend

[thin panther]

That's what the target node is on a getter

You don't get the target if the variable is in the BP you are currently in

[fringe perch]

How can I reference other copies of itself as the "other" variable in the event hit?

[thin panther]

The other actor when casted is the copy of itself.

When working locally with a var in this bp you don't need a node with the "target" pin

[rugged wigeon]

You can do this though. This won’t cause a problem, besides being unclean

What exactly is the problem? You’re switching on whether self.Caught == True. Have you determined that this value is being set correctly?

Did you perhaps mean to be switching on target.Caught instead?

[fringe perch]

Uhhh so it probably wasnt the best idea to do everything internally within the same BP, but when they're both supposed to swap states on collision

but the person with selfmove = false doesnt swtich properly

[rugged wigeon]

Are they two of the same thing colliding with each other?

[fringe perch]

yep

[rugged wigeon]

Are they swapping twice because each collided with the other

[fringe perch]

Uhm no

It just stops at the nodes where the condition is as bp ->

[rugged wigeon]

What do you mean stops?

[thin panther]

"It just stops"

Do you get any errors, or does execution just not go any further

I'd stick some breakpoints in so you can follow that chain

[fringe perch]

I dont get errors

it just doesnt execute how I expect it to

I expect them both to swap states

[thin panther]

Get some breakpoints in so you can step over 1 by one and see what's going wrong

[fringe perch]

Uhh- how do i add in breakpoints ^^"

[thin panther]

Pretty sure you can just right click the node and toggle them

[rugged wigeon]

You circled the wrong node

It’s clearly following the self.Caught == False path and then getting to Target.Caught switch

Then it “stops” because it evaluates to False and the exec pin goes nowhere

[fringe perch]

Yeah i did sorry

[rugged wigeon]

So the problem is target.Caught == False

The other guy, that is. Both of them are not caught

[lucid prawn]

Hopefully a super easy one - my Google Foo is letting me down. How do I get a refererence to an actor being stored within an array I've populated?

I'm trying to get a reference to a random actor from "Dance Floor BPs" so I can trigger a function on it. For the life of me I can't figure this out, and I swear I've done this before. Might be Sunday night brain drain.

[thin panther]

Take a random from 0 to length -1 then use the get node with that output

Make sure to cache that number or the reference if you're using it more than once. Pure nodes run uniquely for every connection

[rugged wigeon]

Drag out from the array and use Get (a copy)

[fringe perch]

Im not sure, the one being debugged is the troll face (the one being collided into) where, I thought it would be, self moved false -> self.target.caught false -> other.as bp_player.target.caught true?

[lucid prawn]

Thing about "get a copy" is that it's copying the actor, right? It's not a reference to the one I've actually placed in the world?

[fringe perch]

@rugged wigeon

[lucid prawn]

Giving it a go now.

Copy worked.

FML.

@rugged wigeon - Thank you, I feel like an idiot.

[rugged wigeon]

What is Caught?

[fringe perch]

the rat thing

caught is true when they're the rat thing

[rugged wigeon]

Like the rat thing is always Caught?

[fringe perch]

they switch to the rat flipbook when caught is true

when caught false its the troll face

[rugged wigeon]

… pause the game simulation before the collision and check if it’s actually set to true on the ray

Rat

[fringe perch]

Uhh how do I check that for you

[rugged wigeon]

No that’s confusing tbh

[rugged wigeon]

Either something silly like a button you can press to print the value of Caught or add it as something you can view in the editor

[fringe perch]

I mean its the only way its got the rat sprite

it changes to troll when caught = false

[rugged wigeon]

Yeah but this appears to be the problem so let’s check

[rugged wigeon]

And if you do this for the whole sequence, it keeps printing rat through the collision?

[fringe perch]

no

[rugged wigeon]

Is it possible it’s being set to not Caught at the time of the collision

[pastel garnet]

Hello, can anybody help with figuring out why level streaming (loading screen) isnt working when i try to load the menu back in. you can look at the level panel to see what levels are loaded in at any given time.

[rugged wigeon]

Nearly that time* and as a result you’re not getting the result you want?

[fringe perch]

oh wait i lied?

it does...?

wait no it doesnt

that was just left over prints

[main lake]

Guys, when the player jumps, when he's ascending, would "IsFalling" on the CharacterMovement return true or false ? I know that when he's descending it will return true but what about when he's ascending up when he press the jump key

[fringe perch]

Oh that might be it... but i thought they'd happen simulataenously?

[rugged wigeon]

Everything happens one at a time

You don’t have guarantees about the order

But no game logic is parallelized

[fringe perch]

@rugged wigeon thx for explaination, do you have any solutions for this problem?

[rugged wigeon]

I guess I would start by only doing the collision logic if they’re the rat

Just make one of them do everything and the other do nothing

[drifting mango]

Not sure if this would apply here, but I am working on some movement concepts for a project, and one of the things that we want is to make a system where an actor can slide, and store momentum for their next jump. Is there a way to even store momentum via the blueprint system?

[spark steppe]

it's just a force? so a vector should do

[drifting mango]

Store the forward vector as a variable and apply it on jump, probably

[rugged wigeon]

Might want to start getting specific about physics terms.

Momentum is velocity * mass.

Sounds like you want the velocity. Not the forward vector which is simply indicating the direction of an actor

[spark steppe]

also the forward vector could change in the last moment of the slide if the player turns, so you would end up in the wrong direction

[rugged wigeon]

Of course, you probably don’t want velocity either. You probably want to accrue “sliding power” while sliding, perhaps done with speed as a modifier.

Because presumably there’s a difference between storing over a 5 second slide vs a 0.1 second slide, even if they’re the same velocity

[drifting mango]

This is all pretty useful information, I'm diving headfirst into UE4 to try and grasp all of this

[spark steppe]

that's more or less more of a general physics/math problem

as gorilla said, the momentum builds up over time, but after all it's just an force/velocity in one direction (which may be altered during the slide)

what you end up with also depends on what kind of behavior you want for your game

[drifting mango]

Sounds like fun

[pastel garnet]

Can anybody help with this?

[keen ore]

When i play the level my charater start cliped into the ground

[nocturne fossil]

is it possible to impoert particcles from other ddcs or we limited to niagar?

[cyan bone]

https://www.youtube.com/watch?v=Q4AOmT9aOEM

this technique makes grids only using 1 mesh

it draws everything in just 1 procedural mesh

I think its very interesting technique

However, after i had a nap, I realized ISM is better?

Or am I wrong?

Though proc mesh you are making 1 mesh, you are also having to render it all even if a lot of its geometry is hidden from the camera

Whereas an ISM, you can have 1 million square tiles. But only the ones on camera are rendered...

Can anyone confirm if this thought process is correct?

Also with ISM is very versatile to change the materials per instance

[celest lotus]

can anyone help on setting up movement of tetris blocks, Currently what im doing is whenever we press A,D,S the pawn is changing the location of the block using set actor location node. But whenever i press S and the block is about to collide with either floor or another block it ignores the collision and goes inside. For rotation i m using set actor rotation and its doing the same thing

[gentle urchin]

Its not very versatile. It uses the same material across all shared instances

Hence the combined drawcall

[cyan bone]

Well. And procedural mesh you would need to create a new material for each different tile, is that correct?

ISM you could make all the tiles as you want using a SpriteSheet

Can change color of tiles too with ism

i dont know

its quite tricky

But in my thoughts ISM is winning again

[gentle urchin]

If theres a limited set you can just use multiple ismc's

[cyan bone]

yeah

would you still opt for the Proc Mesh?

[gentle urchin]

Dunno what the clear benefits are

[cyan bone]

I built and tested the proc mesh system myself.
Imagine you want to make tiles of different colors.

As of now i'm creating new Proc Meshes for that

Whereas in ISM, you would simple create a PerInstanceCustomData

This is just an example

[gentle urchin]

Personally i found it pretty troublesome to set up aswell

But thats probably a me thing

[cyan bone]

yeah

[cyan bone]

you mean pretty wholesome"?

[gentle urchin]

I dont think thats the way id do that

Troublesome**

[cyan bone]

yeah its quite a workout lol

but its great to know, because proc mesh is a great thing

[gentle urchin]

Doing ism landscape was relatively easy

A bit work to match up angkes and directions but not that bad

[cyan bone]

angles?

[gentle urchin]

rotations

[cyan bone]

for what exactly? elevations?

i mean

you are making tiles? or you can add variations?

afaik ism cant change the mesh

[gentle urchin]

yeah , elevations

[cyan bone]

ah

[cyan bone]

how do you do that?

i can only see it as a flat tile map

well

[gentle urchin]

trying to rebuild the project i had it in

but its borked due to missing plugin atm

[cyan bone]

the only way i could think of doing a landscape with ism

is by using a different ism for each different lego piece

[gentle urchin]

yepp

thats what i did

had like 8 or 10 pieces

[cyan bone]

awesome

there is another way that just occured to me, that is by using a box mask

you could then cut each piece

though its another workout

🏋️‍♂️

[cyan bone]

thats really cool

[cyan bone]

i prefer this than the super realistic graphics

you also made transition tiles

i can see there in the sea to the land

thats annoying to do

[cyan bone]

you used bitwise method?

[gentle urchin]

i also added transitional materials

[cyan bone]

ah, it makes me want to do it too

[gentle urchin]

Was an interesting project

[celest lotus]

why is it that whenever i set the rotation to 0,180,0 it turns into 180,0,180

[trim matrix]

So I have a variable IsGrounded

And I have a custom Event with an input called IsGrounded

[gentle urchin]

shouldnt be an issue no

[trim matrix]

and these are supposed to be independent

Ok thanks

[gentle urchin]

but it makes it hard to differentiate

so i'd suggest a distinguished name

[trim matrix]

This is for multiplayer replication RPC, so I want them to be similar 🙂

[celest lotus]

is it a bug in unreal engine or something?

[gentle urchin]

even bigger reason imo

Statefull replication should prob be a repnotify aswell

[silent stag]

There is a truck driving on a spline and when the spline ends, this truck explodes. How can I get back to the beginning after the explosion?

[surreal peak]

Probably a gimbal lock byproduct

[celest lotus]

wdym

[surreal peak]

Rotators suffer from gimbal lock. It's a term you can Google. Images explain it better than words.

It's a phenomenon when one axis aligns with another.

Which would happen if Pitch is 180 and the other two 0

[celest lotus]

im printing the actor rotation value on screen and im changing rotation using this logic

[frail onyx]

anyone know why my sphere mask is not centered on my sphere collision?

[surreal peak]

Math in the material?

[frail onyx]

i updated this a little bit from the normal image of the black sphere there but it is also off centered in this too

this is what its at right now

im trying to have a just the white outline and have the middle where it's black just show the normal texture that it's covering

[celest lotus]

how to fix it then?

I looked on the google but im not familiar with quaternions

[surreal peak]

Quats would be a fix, but I don't even know if they are available to blueprints by default.

You can try setting the value directly instead of adding it

[celest lotus]

there are nodes of quats

[surreal peak]

The easiest way to handle quaternions is to see them as a rotation around an axis (imo).

For example the Pitch rotation you are adding is a 90° rotation around the right vector

[celest lotus]

its still facing gimbal lock

[frail onyx]

do u have any idea how i would fix that?

[surreal peak]

I'm not really a material person. Just figured you might want to post all info, which includes the material

I'm sure someone else will help. Europe is just waking up time zone wise

[frail onyx]

oh alr, np

[celest lotus]

i didnt get u

[faint pasture]

because those are equivelent

think about it

0,180,0 is "look up so far that you are looking backwards

180, 0, 180 is "turn around, the roll your head 180 degrees

you end up with the exact same orientation

[faint pasture]

Double check your lerps and the radius offsetts

do each mask 1 at a time and make sure it's behaving the way you want it to

matter of fact, do it with 1 lerp

make a bit of material that outputs the 0-1 spherical shell then just have that drive the lerp between scenecolor and white

[steel shadow]

Tryed now got neck aches

[wicked osprey]

Hi guys, how can I find the new location of the child component when the parent component is rotated new
-Root - NewRotation
--Comp - NewLocation

[trim matrix]

@wicked osprey

[silent stag]

i add actor to actor as a childactor. How can i reach this child actor variables ?

[distant hollow]

Get ChildActor then cast

[silent stag]

i tried that

[wicked osprey]

I need to get what the location would be if the parent component was rotated

New location of child component by new rotation of parent component

[thin panther]

So you didn't get child actor

Fwiw abandon usage of the child actor component. It's insanely broken and Epic have no intention of fixing it

[distant hollow]

From ChildActor Get Class

[gentle urchin]

Rotate vector

[steel shadow]

This is confused by you calling your component 'child actor'. You need to do a GetChildActor call from your 'childactor' childactorcomponent. Then you cast.

[silent stag]

Yes i find that way but thanks anyway

[onyx token]

is this the correct way to change scalar parameters on widget image component material instances?

well- it probably isn't because it doesn't work...

The parameter name fits the instanced material

and i'm getting the scalar value, when i print it, it prints the default value correctly

Which means the SetScalar must work aswell

But for some reason it won't show up on my 4 CrosshairBackL, L1, R and R1 (which are all widget image components)

[onyx token]

ok i found out you're supposed to create a binding-

but this somehow still doesn't work

the 2 display names in the print are the same

so the dynamic material instance is created, and applied to the image...

wait wtf-
this works

but if i connect "changeCrosshair" - the print is still being fired, so the event does reach the widget

wat

wait- i'm really stupid. I had spawned 2 crosshairs, 1 for debug that was invisible and i by mistake addressed that one

it's been 50 minutes

[shut yew]

how to allow only one static mesh/bp to overlap with collision but the mesh of the character cant

And, additionally how do i make it so that only when my chest is open i can pick up the potion

[onyx token]

i'd work with a custom collision layer thingy
channel

[lofty rapids]

maybe some sort of boolean ? are you going to have multiple chests with multiple keys ?

[shut yew]

just one

[onyx token]

or you could work with a boolean flag, ye

[lofty rapids]

a simple boolean true/false if it's open up or not might work

[onyx token]

also don't use delay, use an animation notify event

it's cleaner

[lofty rapids]

now when you go to pick up the key, check that boolean

[onyx token]

allows you to change the animation and it still works

[shut yew]

thius is when i pick up stuff

[lofty rapids]

the bool should work out

[neon lion]

how can i set a variable (of a type like UPrimtiveComponent*) to a component that is already on an actor? Can i just drag and drop onto it in the details panel?

[shut yew]

how do i spawn it back if chest is not open

I just want to block the character from picking it up

but it just dissapears

[lofty rapids]

so check the boolean before you get the item

if it's false then don't pick it up

[shut yew]

im trying but its not working

only if chest is open i execute add item but it still dissapears

[lofty rapids]

is it printing hello ?

[shut yew]

no

it just dissapears

[lofty rapids]

then the booleans not true

or it's not consumable

[shut yew]

it is consumable

[pallid gorge]

Note, sometimes print strings do just break too, best if you can find another piece of functionality that is/isn't firing and/or restart UE just to be sure

I've had lots of code that fires perfectly but print string just decides not to

Same with breakpoints

[lofty rapids]

strange

[shut yew]

yea

now it doesnt fire any of the strings

strange

imma restart

[pallid gorge]

Have you tried breakpoints?

[shut yew]

ill try nwo

[lofty rapids]

the event might not be running

[pallid gorge]

Can put them on the print to see if it fires or the branch to see the state of the condition being passed in when it's supposed to

[lofty rapids]

of consumable === true, and chest open === false, it won't print anything

maybe put one on that path as well see if it hits it

[pallid gorge]

On another note I'm also hitting a block, any suggestions appreciated. I'm trying to pass in items to an array and then get a weight for each item based on how many duplicates of that item are in the array. IE: If the array has 10 items and 5 of them are the same I want to get a weight of 0.5 back

I could probably increment duplicates and then total them all up but I feel like there has to be a more clean solution but I'm also not that familiar with all array functionalities

[shut yew]

it stops there apperantly

so how do i make it stop dissapearing

[pallid gorge]

It stops on the false you mean?

[shut yew]

yea

[pallid gorge]

Well you don't have anything running off of it so it's not gonna do anything when it hits

[shut yew]

how do i just disable the pick up

[shut yew]

well it still dissapears

for some reason

[frigid summit]

hi guys whats wrong with this why is the widget not show up

[lofty rapids]

do you have collision event on the item ?

[pallid gorge]

You're probably handling that in another spot in your code would be my guess and it doesn't actually check whether or not this whole sequence went off properly

[shut yew]

yea

not really tho

[lofty rapids]

maybe thats where it gets removed ? because i don't see the destroy in that code

[pallid gorge]

I'm hopping in kinda late so I don't know if you have all the code related to this posted already, but if these two sequences aren't talking to each other then the outcome isn't gonna matter

[pallid gorge]

Gonna need to elaborate a little more, what are you trying to do?

[shut yew]

the pick on all the other stuff works

its just the potion

[pallid gorge]

Well does the potion have its own code for pickup or are you using some catchall setup?

[shut yew]

catch all

[pallid gorge]

So where's that?

[shut yew]

wait a sec

[frigid summit]

show the death time

after they all dead

[pallid gorge]

And what does it do now?

[frigid summit]

nothing they get destroyed and just the timer that i added to the viewport show up

[pallid gorge]

Are you destroying them before this code fires?

[frigid summit]

i didnt understood

[pallid gorge]

Put an IsValid off your Get HUD and put a breakpoint on it to see if it returns true or false

[frigid summit]

ok

[shut yew]

i had some other code hidden related to pick up

but it still dissapears

[lofty rapids]

you sure is potion is true ? and chest open is true ?

[shut yew]

yea

[shut yew]

chest open is false

[pallid gorge]

What's happening in "Pick Up Item Event"?

[frigid summit]

valid i guess

[pallid gorge]

You have to step through one frame and see which branch it fires

[frigid summit]

ok

dont even worry about that i set it on event begin play so im sure its valid

[shut yew]

dawg

now it doesnt wanna pick it up at all

[pallid gorge]

Yeah but depending how you're destroying your player you could be destroying the hud object before that code fires so it has nothing to fire on

[shut yew]

even tho chest is opened variable doesnt become true

[pallid gorge]

Why is the chest open variable pulled off the TPC?

[shut yew]

what

[pallid gorge]

Your chest variable runs back to your third person character for a target

[shut yew]

bruh

2 different variables

wtf

they were 2 diff variables

[frigid summit]

its custom event react in sequencer the event react play and than event rank play

and sequencer connected to event begin play

[shut yew]

how do i call the variable in the bp_itemmaster from bp_chest

[lofty rapids]

you could set it on the player to make it easier

[shut yew]

yea but i need to change the variable when the chest gets opened

[pallid gorge]

You'd have to have some reference to the chest, what blueprint is this being called in?

[lofty rapids]

cast to player, set variable

[shut yew]

done

finally

holy smokes the whole bug is that i had 2 different variables

[pallid gorge]

But where is the destroy?

[shut yew]

[pallid gorge]

lol rip

[frigid summit]

its not here i removed it so it death anim only

[frigid summit]

see

[shut yew]

now how do i set collision to the chest but still put something inside of it

[shut yew]

thanks

[shut yew]

thanks

[pallid gorge]

Okay, I didn't know since you still said you were destroying them. Well have you put a breakpoint on the cast to see if it's passing and getting the right HUD element?

[shut yew]

cause if i put block all it just spits out the potion

[frigid summit]

its one hud and yes last hour i did that

[pallid gorge]

Okay and does the death screen appear and just the timer doesn't work or does it all not work?

Because I don't think "get time seconds" is gonna be what you want anyway

[frigid summit]

the timer work on event begin play cuz i added it to the viewport the rank system the silver gold thing death time all not appear

thats really strange they are in the same widget

[frigid summit]

no thats just all i want really

update death time event contains all my rank system

[pallid gorge]

Okay I guess I'm just still unclear on what it is you're wanting to happen vs what's happening now

[frigid summit]

its too simpleeeeeeeee enemies dies the death counter increase the death time show up but it dont

but when i putted it after the reducing health it worked but the proplem of this its one enemy

[pallid gorge]

The enemy dies or the player dies? The code looks like it's for the player?

[thin panther]

You don't show us anywhere you showing or hiding the widget.
It also helps readability if your bp aren't spaghetti mess.
Please try to lay them out cleanly so they can be read easier.

[frigid summit]

the enemy

[frigid summit]

this is it @thin panther

[pallid gorge]

So you've got a timer that runs at the start, and after the enemy dies 3 times you want it to stop the timer and display it on the screen, is that it?

[frigid summit]

not exactly after the enimes death not 3 times this is the counter for enimes

not the times of death of them

[pallid gorge]

Your deathcount variable looks like it's saved on the enemy itself tho so it would never get past 1

Unless you're recycling the same entity

[frigid summit]

oh ok maybe thats the proplem

but why its not passed

[pallid gorge]

What do you mean?

[frigid summit]

its on the enemy why is the death counter not incrementing when the health reaches 0

[pallid gorge]

It does but only for THAT enemy and THEIR specific death counter, so unless you're resetting THAT enemy's health and moving them around the level or something, the next enemy the player defeats is going to have their own death counter that's still at 0 (assuming it starts at 0)

[frigid summit]

ok i get it now thanks than i need to create another enemy bp

[pallid gorge]

You'd have to either have all your enemies communicating when they die to increment all of them simultaneously or save the variable somewhere that isn't tied to a single enemy

[frigid summit]

can this be on gamemode

[thin panther]

Yes, nowhere in there is a node that shows or hides a widget

[pallid gorge]

You probably could but it'd probably be easier to have on the player or the level blueprint and just have the enemy fire some event

[thin panther]

You've got an update, but nothign controlling widget visibility

From that we don't even know if the widget has been created

[thin panther]

Don't use the level blueprint ^

[frigid summit]

ok i will try

[languid hemlock]

Is it possible to add delegate parameter to a function?

[frigid summit]

one minute and i will show it

[frigid summit]

there you go ^_^

[thin panther]

where do you ever set remaining seconds.
what's it's current value?

(Also please cleanup the spaghetti, it's incredibly hard to read :P)

[frigid summit]

dont worry about that when the enemy dies i get the game time seconds so its not related to the timer in the first place i could delete the timer

[thin panther]

It is related to it though. If remainingseconds is never below 47 then it's always going to take the bottom path, hiding your widget and thus not showing it

[lilac storm]

hey guys please help my nav mesh looks like this with huge gaps, how i can fix it ?

[frigid summit]

not its gonna be silver if its below the 47 and still show the time because the update death time dont have set visiblity anyway

i tested it with one enemy it worked but somehow with multiple enimes it dont

cuz the death counter dont increases

[pallid gorge]

I know there's addunique for arrays but is there any node that lets me check if the entry would be unique and get a bool/branch back?

[thin panther]

"Contains"

[pallid gorge]

Thank you

[gentle urchin]

It also returns the index, or index_none if it was already present

[manic ridge]

Does anyone know how to get rid of the projectile arc for the projectile in the first person template

nevermind

[empty marten]

Hey peeps,
Got a curiosity question here. In regards to searching for tags through a For Each loop and then using a Switch on Name, would it be better to check if the hit actor has the tag first then Switch on Name (tag) and execute whatever or is it better to have it the way I currently have it? This is my first time setting up BP code multiple tag checking so not sure the best (optimised) way to do it.

[crystal crown]

I can't save my component after using a macro plugin in it

[glossy bolt]

Hello guys is there anyway to trigger a key in level blueprint when level is loading

[lunar sleet]

Probably not and you shouldn’t be using level bp to begin with

[lunar sleet]

Where is this code being run currently ?

[lunar sleet]

Idk what a macro plugin is

[crystal crown]

just a plugin with some macros

[empty marten]

So this is coming off a line trace via event tick which is why I feel there's probably a better way to do it.

[lunar sleet]

Try File -> Refresh All Nodes

[crystal crown]

Did not help

[lunar sleet]

Lol yeah I would probably run the actor has tag on the actor first instead of iterating over every tag in that list for no reason 🙂

[lunar sleet]

Maybe contact the plugin’s creator then 🤷‍♂️

[empty marten]

So in order ForEachLoop, ActorHasTag, SwitchOnName.

[lunar sleet]

No

Hit actor, actor has tag

2 things: 1. Do you actually need tags or can you just cast?
2. Why iterate over the array of tags, does it not just let you check for a specific tag?

[empty marten]

Well the actor doing this event is a security camera and its going to be hitting different actors and not 1 specific actor hence the tags.

[lunar sleet]

Ok good

Ig it’s safer to iterate over an existing array than use typed in names so that should be fine

Normally you can do nested casts but if you’re going to have many checks, this is prly better

[empty marten]

Well at the moment I'm only checking for 3 things but overall I plan on needing to check 8 things at the moment. It might go up to 10 if I expand this pack more. This is for the marketplace when its done and I'm just making sure I get everything clear and optimised for it at the moment. Hence my original question.

[gentle urchin]

Id probably make a detectable component instead of tag as it can hold states and triggers more easily imo

The native tag system isnt the most versatile thint i've seen, to put it nicely

[twin shale]

How bad are Child Actor Components exactly? I need to swap out a PackedLevelActor with a Static Mesh depending on some variables. I have to do this quite a lot. I can't make a PackedLevelActor component so it would have to be in a ChildActor. These do not move

[dire frost]

they used to be extremely broken. sometimes you got unselectable, uninteractable actor at (0,0,0) because of it, that was the main and presistant issue i had with it back in the day. but it is now used in epic projects like fortnite and i think lyra too so im not sure how broken it is now

[versed sun]

Isn't the Replicating of Child Actor Components costly?

[twin shale]

Okay so I might be better off ignoring some of the stuff I'm reading and just give them a try then. They would defintiely solve my issue but I didnt want to put myself in a bad spot because they were the easy answer

[twin shale]

For me these are display only. The parent replicated but the child actor is basically just a packedlevelactor

[rich ferry]

Still trying to figure this out. I have a system to place a decal at the endpoint of a projectile path, but it doesn't seem terribly accurate. I can verify the projectile prediction is perfect (the white line), but the decal seems to "snap" to certain positions without closely following the given location. You can see here the difference between the red ball where the projectile landed and the decal. It's not consistently off in any one direction, the inaccuracy will vary. Any ideas?

[lunar sleet]

Probably because you’re converting a location vector to a transform 🤷‍♂️ . You know there’s a spawn decal at location node right?

And wouldn’t it be more accurate to register the hit location instead of predicting it or is that too slow?

[rich ferry]

I did not actually lol. And the conversion node appears to do exactly what I want so I don't see the problem with that, it says it just uses the vector as the location in the transform. Let me try that node though.

[rich ferry]

The prediction lets me draw a line in the HUD for the user to see where the shot goes, you can see it in the second image.

[rich ferry]

oh god it doesn't go away lol

[faint pasture]

collision position adjustment maybe?

is there anything in that actor that can collide?

[rich ferry]

should I just kill it next node/same frame

[rich ferry]

nope

[lunar sleet]

Oh I didn’t realize you wanted it to be temporary. You can destroy it as needed but if it doesn’t fix your issue then it’s not useful ig

[rich ferry]

I can't tell yet, too much stuff lol

[lunar sleet]

Are you actively watching the value of the xform at runtime?

[rich ferry]

Idk what that means

[lunar sleet]

Right click the pin, watch value

[rich ferry]

Ah

[lunar sleet]

You might need to select a debugging object after you click play

[gentle urchin]

I prefer debug draw over viewing vectors

[faint pasture]

does a debug draw work perfectly?

you need to figure out if the vector is not what you expect or if something is wrong after the vector

[rich ferry]

Yes the cords are where I want them to be, I can confirm that.

[gentle urchin]

So then its the decal

Being unalligned or scaled or both or offset

[faint pasture]

give the actor a mesh sphere right in the center and see if that and the decal get out of alignment

[rich ferry]

Yeah I just finished testing, the decal has the exact same behavior

[rich ferry]

Looks like I already have that. I can make it visible though.

[rich ferry]

Alright the cube moves along with the decal so I believe that this is an issue with predict projectile path being not where I want it. I thought I could confirm it was accurate but it appears not

[gentle urchin]

Doesnt it also come with debug traces

[rich ferry]

No, but it does come with a hit result object that might be more accurate than the last destination pin.

Let me try that

Yup that solved it. Thanks everyone for the help though, I'll probably switch over to using that decal method instead, seems more elegant.

[floral totem]

I’m attempting to have a projectile bounce back to the player who shot it, how would you all approach this? I’m going for something similar to Dravens Attacks in league where my player throws a weapon then it bounces off and lands near the player to be picked up (uses EQS to locate). I’m at a loss of where to start. Currently my projectile just destroys on hit, should I be using a physics material? Launching the actor? Reversing velocity? Any input would be greatly appreciated thanks!

[rich ferry]

I don't have a full solution but "Find Look at Rotation" is a very simple node that should prove useful to you

[flat coral]

I'm trying to make an AI that moves along walls towards the player. I have the idea of doing pathfinding in open space first by just drawing a line, and then somehow pushing that line against the nearest wall to generate the path the AI will take.
Two questions:

1. What's the most efficient way to find the nearest wall (or ceiling, or floor) from a point in space?
2. Is there a more efficient way to draw a line along a complex wall than spawning a bunch of collision spheres along the line?

Hmm I could move along a spline but how do I fit a spline to a wall

[floral totem]

I will look into it, I appreciate your feedback!

[frail onyx]

i got the black part on the inside to go away now so its just the outline, but i just cannot at all figure out how to make it centered, idk why it has a weird offset from my sphere location

[trim matrix]

Hey, how can i loop through a TMap in Blueprint?

[supple dome]

map -> keys -> for loop -> read map with key

[trim matrix]

thanks!

[faint pasture]

First off, how does your projectile move to begin with?

[gusty shuttle]

Question for local multiplayer blueprints
I can't move my second player with my controller. It works fine for my Player 0, but not for Player 1. Any tips or keywords?

[faint pasture]

You want Player 1 on kbm and player 2 on the only gamepad, right?

[gusty shuttle]

Correct

[faint pasture]

I haven't found a solution yet but I'm working on the same problem

[gusty shuttle]

Aye, I feel you brother

[faint pasture]

I think the core of the problem is that there is an association between hardware and players

and if Skip Assigning Gamepad to Player 0 is not working, we need to figure out how that association is made and how to modify it. I want to be able to have any mix and match for any players for my project

[gusty shuttle]

Agreed. From the hours of scouring the internet, it leads to the enhanced input system not playing nice

If we could assign the controller input to the player 1+ that would be great (Player 0 is player 1, player 1 is player 2 technically haha)

[faint pasture]

What I want is a SSB style ability to do any sort of mapping I want

Like if I have a KBM and 2 controllers, I want to be able to have 2 players on the 2 controllers or 1 on keyboard

[gusty shuttle]

That would be amazing

[floral totem]

I’m creating a projectile actor then using the projectile movement component

[faint pasture]

ok so keep that same energy

just restart the movement at the end of the first travel and fire it off back towards the character

[neon lion]

after opening the editor, how do i get back to this "data only" blueprint

[fickle flame]

does anyone know why my mouse button inputs require a double click but my keyboard works on single?

i have to double click to get it to go off

[floral totem]

I’ll give that a shot thanks for your input!

[chilly plover]

is there a shortcut to output game info like fps when you are playing the game in the editor?

[lofty rapids]

theres a console command at the bottom

stat fps

shows fps

idk about any other ones

[chilly plover]

What aboyut outputing graphic details like exture quality?

[broken wadi]

Texture quality is a setting not a stat command. You find more info about them here: https://docs.unrealengine.com/5.3/en-US/stat-commands-in-unreal-engine/

[lusty hedge]

how do i make this player controllers collisions work with the mesh and not the capsual component scene root

i want it to be slanted on the slope

[thin panther]

you don't

though you could juswt trace downwards and orient the mesh to the face normal

[lusty hedge]

might look bad on areas that are bumpy

any ideas?

theres no way to do it with physics easily?

[thin panther]

If you're making a vehicle you'd be much better off actually using a vehicle

[lusty hedge]

thats a default thing?

[jaunty solstice]

I've added random idle animations to the Construction script for the Crowd Characters. This works correctly when I manually drag the blueprint from my Content Browser to my scene.
However if I try to Spawn the same Crowd Character BP from a PCG graph the animation in the Construction script doesn't work.
In order to have the idle animations play on spawn (without entering PIE) what must I do? In other words, why is my Construction script ignored on Spawn?

[lusty hedge]

whats the difference between creating an input action and changing inputs in the project settings

[thin panther]

inputs in the project settings are deprecated and you can't hot swap control schemes for different things

[lusty hedge]

could you please let me know what to study in order to achieve my goal

im finding a quite a handful of different things

some things about a physics mesh and vehicle controller but im not exactly sure what to look up

[thin panther]

probaably start with looking at the vehicle template perhaps

[faint pasture]

PlayerController is a specific thing, it's not what you're talking about

First off, how does your vehicle move?

is it really a Character?

[flat coral]

I need a way to find the best way OUT for an object that is currently colliding.

See, I built this funky pathfinding hedgehog that works great for finding valid nearby places to move to. Only problem is, if the pawn in question is currently colliding, then 100% of the traces just collide at the starting point and it goes nowhere. So I need a way to move the origin point of the trace AWAY from the surface in question.

[faint pasture]

are those capsule traces or sphere sweeps?

[flat coral]

Sphere sweeps

[faint pasture]

the best way out is some math on the directions for the hitting spheres

[flat coral]

But remember, they ALL hit

ANd they go nowhere

[faint pasture]

Why are you doing all this instead of sweeping the actual collider you care about?

how did it get into the initial penetration state, spawned like that?

[flat coral]

So the end goal is to create an AI that can move along walls, ceilings, floors, etc, even when those surfaces are complex or angled. This trace pulse is for pathfinding.

[flat coral]

Or pushed, or something moved into it. It's a physics-heavy game so things can be a little unpredictable.

Also I think if it moves to one of these trace locations it WILL be touching the surface anyways.

[faint pasture]

If all movement is physics driven then it should never end up in that state

assuming the physics engine is doing its job

[flat coral]

THIS one isn't going to move physics-based. Too complicated.

[faint pasture]

if you put a physics boy in a physics trash compactor then it should never break, but if the trash compactor is just "interpolate smoosher to smoosh what's inside" then it'll obviously penetrate and yeet it into oblivion

so is the problem that the traces start not fully within the collider? So they have no travel before colliding with environment?

[flat coral]

The problem is the collider moves to the point where it touches a surface, and then the NEXT trace says "well, I'm touching a surface, trace over" no matter where it's facing

[faint pasture]

yeah the traces should start where they can touch nothing but the collider itself

I'd just use lines tbh

[flat coral]

The thing is, I kinda wanna start this whole trace a little away from the surface the thing is on anyways, even if I'm doing it with lines

The other problem with lines is I think it'll be much more susceptible to getting stuck in narrow gaps

[round spruce]

does this node work? it doesnt add any thing

[flat coral]

I use it like this and it works fine

(This class is basically just duplicating Blender's Array modifier)

(I think if I could do it again I'd do it as a component maybe? but then I couldn't access constructor. maybe it's gotta be like this.)

[round spruce]

so i have to attach ?

[flat coral]

ActorComponents have to be attached to Actors, yes

If you don't want it attached to anything what you're actually doing is just spawning a static mesh actor

[round spruce]

thats stupid given the node name though is syas add and it take my actor

let me try

[round spruce]

still not working >_<

[flat coral]

You're setting a mesh for this right?

[round spruce]

yup

[flat coral]

Have you tried supplying a transform? Maybe it doesn't like that null

[round spruce]

its defaulted to 0 for rot and loc and 1 to scale

idont see why would it matter i iwll try

[flat coral]

Hm I can't see any obvious problems with that, assumign you're hitting that code. Are you SURE it's not spawning, instead of like spawning super tiny or way off in the distance or something like that?

[round spruce]

this is funny passing tranform acctualy worked

wtf is this nonsence 😂

[flat coral]

Well, glad I could help!

[round spruce]

ty still no clue why though ❤️

[flat coral]

How the heck do you get max float val in BP

Like, not "higher of two floats" but "float val X such that any given float Y is guaranteed to be <= X"

[versed sun]

Clamp?

[flat coral]

There's no input to what I'm look for. It would look like the node to get Pi.

Pretend that says "Float Maximum"

[lofty rapids]

i mean you could just look up float maximum, i think they are actually doubles

maybe not but i thought i saw that somewhere

but either way just look up the maximum and make a pure function that outputs it ig

or just make a variable that is the max you can use

[round spruce]

so i ran into another issue when addig more than one component the first one always gets overrwtire or sth idk why

[flat coral]

That's gotta be on how you're doing it. Remember my implementation of this is an array, I spawn hundreds of components this way

[round spruce]

this is what i am doing when i enable automatic it only make the first and the other doesnt get added or sth when i remove it the first one is the one that is missing

[round spruce]

thae target actor has nth on it beside the default scene root

[onyx gull]

how do I declare an array variable so that I can drag other components from elsewhere on a blueprint asset with my component attached. for instance I want to be able to drag the SpotLight component onto the array stored on my BWK_XROBase component but every version of actor/ actor component seems to be insisting I pull it from somewhere else (most attempts have required me to load from content browser, I just want to drag it from another component on the blueprint asset

[gentle urchin]

Min

Is what you want

Min is like upper bound, max is lower bound, clamp is both

[flat coral]

I... dont think that's true, but it's also not what I'm looking for

again the value I'm looking for is a constant.

Not a function.

[gentle urchin]

Insert a const in that

And it is true

[flat coral]

Yeah the idea is how do I get the constant

[gentle urchin]

Either by regular const var or hardcode

Hardcode is ofc ugh

[flat coral]

You're misunderstanding me. There is a maximum value that a float can possibly be in Unreal Engine. I'm look for a Math library method which returns that value.

[gentle urchin]

That type of max

Thats kinda not what asked for

You want the var type max

Not sure if thats exposed im bp

You can prob just insert a crazy number in a regular var of the type

I believe it auto clamps

[flat coral]

It's very common in most languages.

[gentle urchin]

Yeah

I know its there in c++

Just not exposed to bp

Whats this for anyways?

Afik editor only got 32 bit input field, so if its actually 64 bit you got some trouble

[flat coral]

Oh just the standard, gotta find a minimum value in a dataset by iterating through it, keeping track of the smallest value you've found so far. So, standard is to initialize that "current min" value to FLOAT_MAX so that any comparison overwrites it

[gentle urchin]

Ah

Id just let the first index write it

[round spruce]

if its in c++ try make a custom class and expose it through that for your bp ?

[flat coral]

Still gotta initialize it to SOMETHING because if it's zero then nothing will overwrite it (I'm comparing distances so the numbers are all positive)

[gentle urchin]

Not rly

First value always wins

Rest compete vs first

[flat coral]

I've got half a mind to do that, it's not the first time I've run into this I think. But I dont have VS installed and I hate setting that up

[gentle urchin]

If first is lowest, great
If not then the actually winner will have a lower number

Leave it default at 0

[round spruce]

ic ic try vscode its light andd easy to set up

[round spruce]

also this

[flat coral]

We're talking code like this

int minVal = 0; // Bug on this line
for (obj current in objects) { 
    if (current.val < minVal)
        currentMin = current;
        minVal = current.val; 
    }
} 
return currentMin;

[flat coral]

Oh I'm ex-microsoft, I have no problems with VS, it's setting up the unreal engine connection to the build system that sucks

And unfortunately I gotta do that either way

[gentle urchin]

Int minVal = Objects[0].val;

[round spruce]

yea its so annoying

[flat coral]

That works but it hits an NPE if objects is empty. int minVal = INTEGER_MAXIMUM; cannot fail.

[round spruce]

i dont see how will this return the min the array if the whole array is larger than 0 then the result will be 0 ?

you wont get the acctual min in the array

[flat coral]

Squize is saying set it to the value of the 0th object in the list

not the object itself

[gentle urchin]

This was just for imitializing the value to something else than 0 (and not.max as its not avaliable )

[flat coral]

Objects[0] just gets the first item on the list

[round spruce]

yea this would work just not 0

[gentle urchin]

Safeguarding vs 0 objects is something you do one way or the other isnt itn

[round spruce]

when you create teh custome exposer would you plz send it to me XD

[gentle urchin]

If the result is INTEGER_MAX

You probably wanna react to that aswell?

[flat coral]

Haha kinda but I like sneakily doing it by having a for...each which doesn't run in the case of an empty list, since I've probably gotta nullcheck the return object later on anyways

I came up writing java, so I'm both obsessed with nullchecks and driven to avoid writing them whenever I can

[gentle urchin]

Id prob just do
int minVal = IsValid(objects[0])? Objects[0].val : -1;

Im lazy like that

Ofc if you can avoid it i guess thats also reasonable

Id never end up calling this function without any objects tho^

[flat coral]

That's what everyone says

[gentle urchin]

Even tho it would be virtually free

[spark steppe]

that's why they invented rust

[gentle urchin]

Fair point

At some point i should expand my knowledge with a new language

[formal topaz]

https://youtu.be/qdXVfwHKLVI?si=99rZMpTdtnzoKC9K&t=34

how do i get started with something like the ruler tool here?

at 0:34

[summer pewter]

don't use the location of the sphere collision, use the location of the capsule component

[sharp grove]

I've got a pretty basic one I'm sure but I'm having severe trouble with it, I've got a spawner and an array of target points, I'm trying to get a spawned AI unit to follow a path through the array. For some reason, they're spawning but not pathing. Am I missing something simple? Currently using an AI MoveTo Node on the BeginPlay event.

[silent stag]

Hey , i add "stop event" end of the "event anydamage" it's firing the stop event but it did not work properly. When i add same "stop event" on component begin overlap like second image it's working. What i miss here

[plain rover]

Trying to get a callback for when the animation montage has ended

I can't for the life of me find the way to do it, but it's probably super simple

[gentle urchin]

Drag from the montage tef

Ref

On montage finished

[plain rover]

This is from an animation blueprint, there's no montage ref

[gentle urchin]

The ref is just hardcoded

Promote it to a variable

[plain rover]

I really have no idea how to do that

[frosty heron]

@plain rover But why? I never play any montage inside my anim blueprint.
Not sure if that's okay but I would question the design choice

[plain rover]

I did as the tutorial from the docs did https://docs.unrealengine.com/5.3/en-US/using-layered-animations-in-unreal-engine/

[wispy cedar]

Hey luc I am having a simple issue with my widget

i want it to go away on end colliding

tried this

no use

[frosty heron]

ofc not

You should learn how to use references first

forget about what you are doing right now

then comeback once you know how, otherwise you will get stuck almost everywhere

[wispy cedar]

ok I was thinking that too

Thanks

[frosty heron]

Matthew blueprint communication video might help

[wispy cedar]

youtube?

[frosty heron]

yeah

[wispy cedar]

okk

[frosty heron]

one of the good one

[plain rover]

@frosty heron so when you have a one-shot running animation, where do you put it usually ?

[frosty heron]

Upper body slot for shooting if my character can move while shooting

so I will have 2 montage slots, one for upper body one for full body slot

[plain rover]

Don't you have a callback at the end of the shoot animation to know that the player isn't shooting anymore ?

[frosty heron]

I don't do FPS but not really, don't have any use case for that atm

but the call back is there anyway if you want

on Montage End

[plain rover]

okay okay

[gentle urchin]

I wouldnt let a montage tell me i wasnt shooting

The player trigger and subsequent events tells me that

[plain rover]

Yeah I was thinking this too. But don't really know how to set that up, given that the shoot state actually matches the duration of the animation playing

[wispy cedar]

fixed it lol

[silent stag]

Hey , can we trigger any event inside of "event any damage" ?

[tropic peak]

I'm having some difficulties understanding the basic input/movement stuff. for example, there is a dropdown for value type in IA settings - I believe it changes the value types that are returned when an action is executed (key press?)

so axis1d would be moving along one axis (left/right or up/down?)

[thin panther]

Of course, it's just an event like any other

[tropic peak]

so lets say I want to have something like an arkanoid paddle but I want it to go around the screen, do I need to pick 3d?

hang on I didn't explain this properly

imagine this is my player object

I want to move the red object around the circle

[thin panther]

That could be a 1d. Assuming you're only.mocing left and right.

For example the 1d movement input could just push you around a spline

[tropic peak]

hm so rotation is a completely separate thing here?

[thin panther]

It can be, it's up to you

3d would suggest your Z is changing, and it isn't there

[tropic peak]

yeah good point

[thin panther]

But you might find it harder to convert 2d movement.

For example on the circle you're only moving left and right at any given time. You can't go forwards outside of the circle

[tropic peak]

I could always create an object like the circle with the red player object and rotate the entire thing

in fact that'd be a pretty decent idea in this case

[thin panther]

You could also just make the circle a spline and push the player along it

[tropic peak]

that sounds difficult 🙂

well maybe not difficult but completely new to me

[thin panther]

Not amazingly so, and somewhat well documented on the interwebs

[tropic peak]

ok I'll have a read

[silent stag]

it's trigger the event but event never working in game what could be problem

[frosty heron]

That's better but anything that overlap the box will create the widget. Might want to check if player etc

[wispy cedar]

should i do cast to 3rd person bp ?

[frosty heron]

Up 2 u depend on the game really

If single player and u want the player only u can use get player character to compare

[wispy cedar]

when this cube falls it doesn't trigger the box

i checked

[frosty heron]

Depend on the collision setting

But if the event is called nothing stopping it to create the widget

[wispy cedar]

Oh yeah yeah it's a small game i don't care

i am just learning Blueprints

and i get it what you saying need to be careful

[tropic peak]

this happens after enabling physics on the paddle

after reaching the wall it gains some speed in the opposite direction

and even if I press left again it keeps slowly going right

I have constrained the xyz rotation and YZ position

[shut yew]

yo you here

[sonic pier]

why does my trigger volume only register something overlapping with it sometimes and not all times

[dark drum]

You'd need to provide more information about what you're doing to give possible reasons.

[silent stag]

Looks like it's working but actor never destroy in game

[sonic pier]

I am trying to activate a jump scare when the player overlaps with the trigger volume but the overlap only registers some times i have tested the jumpscare logic with keyboard inputs that works but wheni use the trigger volume it does not work.. And all of this is happening in the level blueprint

[dark drum]

how have you setup the trigger volume?

[main lake]

Why I can't name my event "Activate" ?