blueprint

[blissful gull]

i think

ok

[devout geyser]

@dawn gazelle nvm fixed everything by doing cast to all actors of class then promoting that to a variable and so on

[rough wing]

Why doesn't plugging in delta seconds to a timer work anymore?

[weary jackal]

You mean deligate is not compatible with deligate?

[rough wing]

No plugging delta seconds to the delay makes it not work

It doesnt even tick

[nimble copper]

Hey Everyone, I am curious if it is possible to assign variables to widgets/slots. Some way for a Drag/Drop operation to know which widget it is dragging from and generate a simple drag icon from it.

Currently my inventory system is just a simple IntArray, when an item is picked up, it searches for a 0 in the inventory, if found, it updates the 0 to a new int value which corresponds to a master item list; updating the inventory slot to contain the item data.

I am trying to make a simple drag drop function where it can tell what slot it is dragging from. Slot0, Slot1, Slot2 etc, reference the corresponding value in the inventory array. The inventory itself displays fine because each slot is referencing its corresponding position in the array.

[twilit heath]

UMG drad&drop takes in a UObject payload

it can carry whatever you need

[dawn gazelle]

Further to what Zlo was saying.. This is what I have in my OnDragDetected function for a draggable hotkey widget.

Made a variable within the Drag and Drop operation to contain the hotkey :p

[twilit heath]

you should probably take a peek at WTS is? videos for drag and drop

[nimble copper]

So confusing hahahaha, What is WTS? Also for the payload. I still dont get how i can tell it what it is dragging from. The string is just a print of whats currently in the inventory array. Each widget is referencing its slot in the index. But I had to bind those by hand.

If you use uobjects for items, do you need to create a new object for every item in the game theoretically?

[twilit heath]

the object that is being dragged from creates the payload

the object that handles the drop receives it

so the first object can stash any and all information about itself in the payload

[twilit heath]

at a glance, it looks like "Accessed NULL trying to read property Blackboard from node GetBlackboard..."

[winged sentinel]

Quick Question about camera shakes, is it possible to make it shake in one direction rotationally?

Instead of randomizing?

[trim matrix]

how do you expose the location of teleport to the details panel? I tried creating a variable for transform location but the struct isnt exactly matching

nvm i used setactortransform instead of teleport

[tame pecan]

@trim matrix You want the dest location as an exposed variable?

[stable frigate]

hye guys? does setting an actor variable which currently has an item to null i.e ( no input pin when setting variable ) destroys that actor from memory or does it stay in memory?

i can also use destroy actor but i just want to confirm this

[granite rain]

@stable frigate I think if you don't have input pin when you set the variable it becomes null

[stable frigate]

ok, so it becomes null and removes the destroys the actor from the memory?

[granite rain]

like destroying it on the level?

[faint pasture]

No, it does nothing to the actor. You are just getting rid of your reference to the actor

[stable frigate]

so the garbage collector will handle it then.

cool

[faint pasture]

Well I mean the map is still going to have a reference to it.

[stable frigate]

ok i got that.

but if i use destroyactor then it will be removed from the map right?

[faint pasture]

I'm sure if every reference got nulled the GC woud handle it but use destroy actor. There are valid reasons to null out a reference tho.

[faint pasture]

Yes

[stable frigate]

good. i ended up using destroy actor too. nice to know i'm on the right track. thanks!

[faint pasture]

Just think of it like an address and a house. if the house gets destroyed, the address will point to nothing and being invalid address. If you erase an address from your address book, it doesn't destroy the house, you just don't know where it is anymore

[latent junco]

How do I reference a Level in a BP Structure? As in, what type of variable can reference a level? There doesn't seem to be a simple 'Level Object Reference' as far as I can see O.o

[trim matrix]

using UE4 with Parsec. Any chance the player controller can't tell where the mouse position is?

My mouse location to world projection is not working 😦

[latent junco]

Is there a class that keeps data (variables) between levels? If I open a new level, PlayerState, PlayerController, GameState, and GameMode all get reset on LevelLoad if I'm understanding correctly

@swift pewter Ah, thank you! Forgot about that one 😅

[hearty lintel]

guys i need some help please

i need to make different cars with different wheels and i would like to have the aniumation blueprint adapt to all of them

is it possible?

[latent junco]

Still trying to figure this one out: How do I reference a Level in a BP Structure? As in, what type of variable can reference a level? There doesn't seem to be a simple 'Level Object Reference' as far as I can see

[long smelt]

Only way you can refer to levels is by name afaik

[latent junco]

Ah, I figured since this existed, it would be possible somehow

[long smelt]

oh wait what

I've not seen that before

There's no way you can set the default of that variable?

ahhhh

yeah

[latent junco]

Soft Object Path lets me select a level in the struct so.... progress 😄

[long smelt]

Worlds are stored as soft object pointers, as only one can be loaded at a time

I think it's honestly better just to manage the names, instead of soft paths

[latent junco]

Alright, thanks! I'll play around with it, I have it working with names, was just wondering if there's a safer way

[long smelt]

I mean I guess paths would be safer, but that seems more suited to a c++ manager

[stray island]

I created a presets system based on choice of the Enum but is there a way to simplify this

Like to set based on index of enum instead of for each choice

[hearty lintel]

thank you dude i'll try it out 🙂

[trim matrix]

Hey could i made a camera that rotates around my actor, only thing is the camera keeps rotating indefinitely. could someone take a look? total noob btw

[teal spade]

has anyone came across the phenomena of running a code, and getting different result each time? I feel like I'm running in circles, trying to hunt down the source of a problem.

Like sometimes an array skips a few entries, or a node doesn't fire fully

[stray island]

I only get this if I intentionally want it random

[teal spade]

Hmm. The only thing that's random in the code, is the size of the arrays, which are generated at runtime.

[stray island]

Then i think that could be the source of the problem

Did you resize your array

Maybe resize and clamp the size according to the values u want

[teal spade]

No. The generation, of a hex grid I'm working on, is only done once. After done, then comes all the necessary calculation. So theoretically no array should change.

[sweet silo]

Hi everyone ! i'm looking to create a time widget inside a watch hold by the player's hand... i've got the timer, the hand animation but i don't know how to parent the widget to the hand.. any idea ? thanks a lot

[teal spade]

@stray island But then again, how would that prevent other nodes from firing? Assuming they're either in a chain or a sequence?

[sweet silo]

i think i found a tutorial

[teal spade]

there's a widget component

[sweet silo]

wow so amazing thanks a lot

coming from Unity everything seems so amazing

but i love unity don't get me wrong 🙂

[stray island]

I’m not sure of your bps logic but i think ud need some boleans before some nodes

[teal spade]

sure thing

[teal spade]

It's essentially a chain of loops, determining rows/columns, multiplied by certain arrays for size, depending on where you are in the code (for what purpose). I also occasionally get runtime errors (crashes), as the engine thinks it run into an infinite loop (which I'm forced to find workarounds to, which is annoying)

Guess I'll have to keep on lookin'! :)

[stray island]

You’re using for loop node? I got similar errors when plugging things in Loop Body instead of Completed and vice versa

[teal spade]

I'm using both for loop and for each, in different parts

Depending on where the code goes

But yeah, I've ran into that problem in the past (hooking up to the wrong noodle), so I'm extra careful about that

But as I'm trying to tighten the code, it starts to break down more... Lol. Like giving me an infinite loop error, when using an interface (showing the event node, in the recipient's, as the source of error). Even though, the active communication is usually in the range of a dozen or so. Weird.

[faint pasture]

That is one chonky switch case.

[stray island]

Yes help

I want to get enum index

Instead

[faint pasture]

What's the use case, why do you have 20 items that are just numbers? What are you trying to do

[stray island]

TOP SECRET

[faint pasture]

Why not just make that variable an int.

[stray island]

No I actually renamed these numbers , was numbers at firdt

First*

[faint pasture]

Do you have 20 very different execution paths or does it all kind of do the same thing?

[stray island]

They are presets

For my actor variables

Each one changed the variable

[faint pasture]

I'd use a data table

[stray island]

And i have an array of variables

Oh idk about tables but is there a way to get the index of enum

Instead of switch or = text

I will check about tables

[faint pasture]

Data table is what you want, you would just make a struct that contains all the data that would go into a preset, and just make a bunch of entries in the data table with all the presets.

[stray island]

@teal spade i have been working with for loop and for each loop alot recently and most problems occurred are where nodes are plugged and , indexes so make sure of indexes and maybe make unique ones

[stray island]

Alright will check about it , but after all i am after simplifying my blueprint , its working with my enum currently

Do u think my enum can affect performance

[faint pasture]

No, but if you are switching on enum to then set a bunch of hard-coded variables, that can definitely effect your design and how productive you are.

[teal spade]

well, technically both types of loops I'm using are static (both in size and function). the variation comes from the amount of instances generated. which depending on the mood of the engine, works or kinda works, or occasionally crashes.

been working on this optimization for weeks now, and it's getting out of hand. lol.

I just don't understand, why sometimes (ahem, always) Unreal freaks out, and abolishes the concept of, WAIT until the chain of code is executed, then progress onto the next line

[teal spade]

I'm kinda in the same boat, where I've such a chonky switch on int, where each exit does something unique (dependent on what the input is). But I just rolled with it.

[runic sparrow]

It's rotating indefinitely probably because you're adding the rotation speed on each update. Try multiplying instead.

[hollow drift]

what is the best approach to store the last 3 moves of a pawn on a board game?

how do i fill it that always new entries appear for example from top to down

ok

kk ty

[deft nimbus]

Does someone know how I could make an orb hover around a player? Imagine it like a moon. I pull an object towards the player with a force and want it to hover around the player afterwards.

[maiden wadi]

@deft nimbus Do you care about physics, or do you just want it to rotate around them?

[deft nimbus]

It is okay to disable physics during that time

Physics would overcomplicate everything in my case

I would think about physics in a later stage of development

It should just rotate around the players. Players should be able to move with them

[maiden wadi]

Last question would be whether you want it to keep it's local orientation. Say the object is on their left, and they immediately snap turn 90 degrees to the left. Should the object be in front of them at that point or on their left still?

Easiest thought that comes to mind is just using a spring arm and rotating it's yaw on tick.

[deft nimbus]

It should be in their front then

[deft nimbus]

I just need an idea how to do it, because I am quite new to UE4, I understand what you mean I think

Like an arm from player to orb that just rotates

Haven't used spring arm yet, I have to read about that first, but it is an idea, thanks!

[maiden wadi]

@deft nimbus If you do this, with those three settings on the right changed in the spring arm, then attach your object to the spring arm, it should rotate around the character without being affected by the character's rotation.

[deft nimbus]

Damn that was fast, thanks, I will try that

A small question: do I have to turn of simulate physics and collisions for that? If not, I would just leave physics enabled

[maiden wadi]

For the object that is being attached to the spring arm?

[deft nimbus]

That is the orb in my case, right?

Yes for that

If it is like attaching something to a socket, I should turn physics off for the object I guess

[maiden wadi]

Any component with physics enabled can't be attached to anything. It'll automatically detach it. It'll still be a part of the actor that created it int he first place, but it won't move with that actor's hierarchy when the actor itself moves.

So you'd have to disable physics on it until you were ready to release it or whatever.

[deft nimbus]

Alrighty, I have to disable physics then, the base BP for that is ready, I attached the orb to a socket until now but I thought hovering around the character would look nicer.

[languid bronze]

Hi everyone!

I have another beginner question, and I'm wondering if anyone could point me in the right direction. 🙂

1. I have a box which spawns an actor in it when the box is opened.

2. I want to pick up the object, but the raycast I am performing (through keybind) does not reach the object first. The raycast is accounting for the box collision trigger first and foremost, which I am standing inside of.

3. Is there a clever way for me to make my line trace ignore it/those without adding each future actor like this as an exception somewhere?

For some background, the operation for opening the box is a simple 'overlap collision box AND press E' combination...

Thanks for any assistance!
I greatly appreciate the help I've gotten thus far. 👍
Hopefully I can pay it forward some day when I'm more advanced. 🙂

[versed tinsel]

hey andré, i think you can cast to the trigger box component, and connect it to the "actors to ignore" pin for your line trace

like so

[dusk flame]

Can I attach my actor to another actors transform?

I don't want it to be an actual child-actor, I just want it to follow that transform.

[languid bronze]

Thanks for this - I used 'Get Actor Of Class' instead and that seemed to work as well. 👍
The only future issue is that each time I have an asset like this I will have to add it as an exception - which is actually more than fine.
Though it would be great to be able to specify 'ignore all Collision Box' somehow 🙂 ?

[versed tinsel]

if i understand what you mean, there is something you can do. instead of checking which actors to ignore, specify the actors you do want to collide with the trace, and then use an NOT equal node

[languid bronze]

Haha that is a great solution. 👍 Thanks again!

[versed tinsel]

np, keep me posted dude

[tropic tide]

is there a way to store a reference to a variable of an object/actor?

or only to the object/actor itself?

[earnest tangle]

It would have to be a pointer if you wanted a variable to a variable somewhere else, and you can't use pointers in BP's

[fiery knoll]

This should be really simple, but doesn't work.
I'm trying to get any primitive component of any actor use GetComponentByClass.
However, I can't select PrimitiveComponent as the class type.

[tropic tide]

does PrimitiveComponent inherit from Actor?

target of that node is Actor

[fiery knoll]

No, inherits from SceneComponent I suppose

[tropic tide]

if it doesn't inherit from Actor then it won't work

because target has to be Actor

[earnest tangle]

It might be because PrimitiveComponent is abstract 🤔

[tropic tide]

oh wait, nevermind

[earnest tangle]

this is not the case, the Get Component by Class returns components, so it just has to be an actor component

[tropic tide]

yeah, just realised that

[earnest tangle]

I wonder if that's actually a bug

[tropic tide]

🤔

[fiery knoll]

Which version are you on?

[earnest tangle]

it seems PrimitiveComponent should be valid for it

[fiery knoll]

I'm using 4.26.0

[tropic tide]

I'm using 4.25.4

[earnest tangle]

Seems they changed some things between 25.4 and 26 when it comes to these dropdown fields

[tropic tide]

didn't 4.26 get an update?

[earnest tangle]

think there's 26.1, I wonder if that fixes it

[tropic tide]

maybe

[fiery knoll]

I'll try. Thanks for now.

[tropic tide]

last year I found 2 bugs that got fixed next update, so worth trying

[earnest tangle]

hm actually nevermind, I don't see a 26.1 in the epic launcher at least 🤔

I thought someone mentioned it on another channel but maybe I was just imagining it

[fiery knoll]

I got a notification for an update, but now it;s gone.

[tropic tide]

it does exist

[earnest tangle]

Yeah there's a forum thread too, weird

[tropic tide]

I avoid moving to the newest version, I'll probably use 4.26 when 4.27 is out

to avoid the bugs

[earnest tangle]

Fixed! UE-104587 Can not find abstract class in actor class dropdown list in GetAllActorsOfClass node

[fiery knoll]

Yes, launcher was outdated. Now I can update.

[earnest tangle]

Sounds like a similar issue so that probably would fix that problem you're seeing as well

[fiery knoll]

OK great, thanks guys!

All works well now 🙂

[elder gulch]

hello everyone for some reason i cant use the same button with 2 diffirent actors how can i fix it?

[versed tinsel]

what do you mean

[elder gulch]

like my door is e key

and i want to hold a item

or collect

when i make it e

too

it disables the door

so door isnt working

[versed tinsel]

thats weird

do you use Input or simply using a keyboard event?

[elder gulch]

input

but same happens at the keyboard too

[versed tinsel]

so when you collect the item you cant close / open the door?

[elder gulch]

whenever i use the second bp

i cant use the door one

the first one

it can be bcs of the linetrace

[versed tinsel]

did you check if it works with another key?

[elder gulch]

when i make spawner with m1 it works

door works too

but when i make spawner m1

i cant hold the box

bcs it disables the m1 again

[sand shore]

this is default behavior

[elder gulch]

and door+item hold mechanic they both use line trace

[versed tinsel]

but isnt it because youre literally releasing and pressing again?

[sand shore]

go to the input event node and select it. look at the details panel. disable consume input on BOTH

(assuming you properly enabled input in the first place)

[elder gulch]

https://i.imgur.com/gWixA75.png

[sand shore]

yeah disable it

make it be an empty box

[elder gulch]

aight

aight done

lemme give it a try

it works

ty @sand shore

[versed tinsel]

oh well thanks lambda lol

[sand shore]

personally I dislike doing things this way

[elder gulch]

why?

[sand shore]

have to reason about what input event is consuming input - much prefer only allowing one thing to respond to input. You could use a dispatcher which either the pawn or controller fires on interact... then doors and stuff could bind to it.

I always use an interaction interface and my pawn or controller calls that on the interacted object

but it does the job, so if you're happy with it you should continue using it

[elder gulch]

aight

tysm :)

@sand shore it got broken again for some rason

does the same thing even everyhting is like you said

[thin raft]

why i get this errors?

[dawn gazelle]

Those variables don't exist in that blueprint. Right click on them and select "Create Variable"

[trim matrix]

Hello guys, I want to make when the character run to do it with run animation, like when I press left shift the player to run but not run with run animation, not sprinting

[elder gulch]

@thin raft after create get the variables and plug them in

you can do it with

ctrl and move the variable

and if you use alt and move you can use set variable

[iron rampart]

Can someone help me?
I'm trying to make my First Person Camera control the rotation of the Character but it doesn't seem to work, i've set Control Rotation, but still not working

[sand shore]

@elder gulch I've no ideas because I don't know what may have went wrong, I don't work on your project

[trim matrix]

Hello guys I want to make the character run with left shift, I did it already but the animation is sprinting, I want to do it with walk animation

But idk how I can change this animation

[sand shore]

#animation but I'm not even sure what you are asking @trim matrix

[trim matrix]

when you make left shift the player to run, he is sprinting with sprint animation, I want to do it with run animation

I hope you get it now 😄

[thin raft]

Ok, i'm stuck again 💀 i trying to import this BP but without success, if anyone can help me thanks

https://www.youtube.com/watch?v=C9-bwHZFN60

is a crowd spawner if someone want to try 🙂

[elder gulch]

sorry i was a dumb starter i failed to see that i accidentally duped the event

[elder gulch]

how about you make them from tutorials?

except downloading for free

[sand shore]

yeah see this is why I don't do it that way

[elder gulch]

the other way looks a ton more harder for me

this is my 6th day

[hollow drift]

somehow i get here a endless loop or/and a crash

anyone any idea why?

its inside a widged. more increases the number of players, less decreases it.

If i press decrease several times then increase, it crashes

[prisma stag]

Is there something else that I can do that has multiple out executions so that if one of these becomes true, then a certain apply damage happens?

[dawn gazelle]

It's not because of this part of the code. Where are these events being called from?

[hollow drift]

on clicked in a widget

(on screen)

type: button

[sand shore]

that's why I didn't push it hard, but simply explained how I would do it

you should watch the pinned video "Blueprint Communication" as it goes over some of this

[hollow drift]

additionally i set the textbox text value with the number

but all inside one widget

[dawn gazelle]

Can you provide a screenshot? Also, I believe you need to reverse these boolean checks... If you're trying to increase the number of players you want Default Player Amount <= 4 (maybe even 3 if you're trying to have 4 players) and decreasing > 1 (as you always need to have at least 1 player)

[hollow drift]

ist super straight forward

[dusky yacht]

does anyone know how to my game inicialize in my second screen?

[hollow drift]

i am confused, how can something that simple already crash

ahhh

i know why

perhaps because i set it to 4 and accidently pressed play

[thin raft]

i searched but never found a tutorial from a crowd system like this

[hollow drift]

and forgot to do -1 since player 1 starts with 0

[elder gulch]

okei

[prisma stag]

How would I be able to execute both of the branches? Or is there an easier way to do this?

[dawn gazelle]

This works no problem on my end. Text is properly updated. No crashing. Again assuming you must have at least 1 player and a maximum of 4

[hollow drift]

the maximum player amount is from 0 to 3 = 4

but 0 is still a number 🙂

i forgot that

but ty for trying out 🙂

sorry, i totaly forgot about that

wrote you before, should have pinned you

[dawn gazelle]

You can use sequence

If it's exclusive though, like it can only be either or, then you may as well connect the false from one into the other.

[deft nimbus]

This works for me btw thx :) I just have to manage replicating it xD

[sweet silo]

hi everyone any idea why my mesh is so deformed after being put in the actor blueprint ? in the blueprint

in the world

what i am doing wrong ahah

thanks 🙂

[hollow drift]

perhaps the scale is wrong?

i see you played around with the scale. perhaps the object placed in the level has too wrong scale

e.g. generally, never scale in engine, just makes more unneccecary draw calls

[sweet silo]

i see ok thanks i'll try that 🙂

[sweet silo]

so i'd have to scale it to perfection in blender then ?

[hollow drift]

i would recommend 🙂

apply the scale in blender too before export

did it work?

[sweet silo]

ok 🙂 thanks a lot ! But yeah that's hard to figure out the right size 🙂 and yeah i applied all transform 🙂

i was familiar with the practice in unity but unreal is a bit different

and no it didn't work the subway is still very long, in the world, but not in the blueprint @hollow drift

but yeah the scale is clearly weird

oh wait

[hollow drift]

what about that?

[prisma stag]

Yea. I was thinking the branch method would be better because Im comparing the actor in the linetrace to the current tool being held and then a certain apply damage happens?

[hollow drift]

click next to the yellow reset buttons

then y get your normal size

sorry i ment the scale not location

but just below there

[sweet silo]

oh ok great yeah i must have changed those while creating the blueprint !

[hollow drift]

kk

[sweet silo]

Great it worked !

[hollow drift]

nice

basicly always scale in blender, never in unreal unless you have to

[sweet silo]

But i think the scale was changed by the spline i created... i don't know how to do it without changing the scale of the whole thing

[sweet silo]

great advice thanks a lot

[hollow drift]

read a bit about texeldensity

then you will understand more about why not to scale in engine (well unldess you have to)

[weak grove]

hey i have a question
i am working on a fighting game
and there will be many characters
i want to ask if i need to create separateblueprint class for all the characters
and how to execute it and control all the classes with controller

[dawn gazelle]

You can create one parent blueprint, and make child blueprints from that one parent blueprint for each of your characters. Any controls that all should have can be contained in the parent, and any specific controls for the individuals can be contained in their respective blueprint.

[weak grove]

i did the same but when i change the mesh of parent blueprint

[hollow drift]

put calculations only sutff in function libraries

makes everything way thinner and easier to manage

[weak grove]

it changes in all the child classes

[dawn gazelle]

your parent is supposed to be like a "base" class. It should not be used in-game. You should be changing the mesh in the children blueprints.

[weak grove]

okay i understood, thanks for helping me out

[faint pasture]

@prisma stag just check weapon type, then for each weapon, check the hit actor type. I wouldn't do it that way though, that's a really not going to scale well. What you should do is have a weapon define what types of things it interacts with. Then your function will be like get weapon, check if hit actor is type of thing the weapon interacts with, do weapon interaction

[prisma stag]

Hm. I could have the linetrace in the tool's bp instead.

[faint pasture]

It has nothing to do with where you do your line trace, you can do that anywhere.

You can also do it the other way around, have each hittable actor define its response to being hit by a tool.

This is a good fit for polymorphism. From your character point of view, it should be able to just call use item on the item in its hand. The item itself would define what use does.

[prisma stag]

I have that. They are of type harvestable and when I do the linetrace I have the linetrace look for objects of type harvestable.

[faint pasture]

If you have more types of tools than just harvesting tools, make a base tool class and the activate event in it.

[prisma stag]

I use an interface for this.

[prisma stag]

I do.

Ill give it a try in a little bit. I have an idea on what to do.

[vital oyster]

Hello !
I'm making a contruction game were you put cubes on a plane and i want to export the level as an .obj file on runtime. I get it work for a object. Is there a way, were on runtime I can merge the whole level in a single mesh ?

[faint pasture]

I'm sure it's possible but not in blueprint

[runic hinge]

Hey guys, I'm wondering if anyone has any insight into this feature in 4.26 that (I think) is responsible for killing a workflow we were using:
New: Disabled editing of default values on soft object reference member variables. ?
We were creating blueprints for our mission logic, and creating soft reference variables to point to level actors. For example, we'd have a Soft Object reference to a Trigger Box in our mission blueprint, and we would assign a value that was a Level Object directly from the blueprint editor. This workflow was convenient for us since we didn't need to open the level the mission blueprint exists in to pick actors from other levels.

This is what we see from the Blueprint editor now

As a workaround, we found we can copy + paste existing variables that don't have the CPF_DisableEditOnTemplate property flag set, but if we're doing something we're not supposed to be doing here I'd like to figure out a new flow that's just as simple as we had. 🙂

[subtle nova]

Quick question (hopefully)
How can I get a scene reference to an Actor component on another actor? I have a quest system set up, and the main quest manager needs to talk to some actors that have a certain Actor component on them. Unless I'm missing something obvious, it's not working for me. The quest manager can't see anything with that component.

[dawn gazelle]

Here I'm getting all actors of class "BP Player State" which I've attached a component called "Mission Manager" to. How are you trying to get your references to the actors?

[subtle nova]

Manually in the scene, as I want certain trigger volumes and such to connect to certain variables.

[dawn gazelle]

You cannot reference objects within the scene within a blueprint.

What you would have to do is place the BP_PlainsQuest object in the scene, then you can have it reference things in the scene.

[subtle nova]

That's what I did, it's in the scene

but it can't seem to find the objects with the Actor Components that it should, seemingly

[sweet silo]

Wow great thanks a lot do u know the name?

[subtle nova]

@dawn gazelle In the quest manager I have an Object Reference set up to that Actor Component type, which is instance editable. I have an object with that Actor Component in the same level as the quest manager, but when I go to set the reference in the scene, it doesn't find anything.

[dawn gazelle]

Yeah I'm not sure you can directly reference components like that in the scene. But as a workaround....

Then you can have said object get the reference: So here's an actor with no reference, but then upon selecting the actor in the scene...

All I did was select the target and the MissionManager component auto-populates.

[sweet silo]

Thanks !

[subtle nova]

That's quite the workaround! But hey, if it works...

@dawn gazelle thanks. 🙂
BTW, how do you have your node connectors be angular? Is it a custom build of Unreal or just a setting I missed?

[dawn gazelle]

It's an editor plugin.. One sec...

https://www.unrealengine.com/marketplace/en-US/product/electronic-nodes

[subtle nova]

Beautiful

[neat surge]

so when i play as a client i get this error once i stop playing ```CSharp
Blueprint Runtime Error: "Accessed None trying to read property CallFunc_Create_ReturnValue". Blueprint: GameInstance_Default Function: Execute Ubergraph Game Instance Default Graph: EventGraph Node: Add to Viewport

this code gets called upon beginplay in LobbyLevel BP

[dawn gazelle]

Are you running the game with the Net mode set to Play as Client?

[neat surge]

yes

[dawn gazelle]

The server also has a game instance which is trying to create UI but UI will not exist on dedicated servers.

[neat surge]

oh so what can i do to deal with this

[dawn gazelle]

On the Begin Play, you can do a "is dedicated server" check and only on false should you run the UI stuff

[neat surge]

ohh i see Thanks

[mortal rain]

This will cure my Blueprint OCD

[inner sandal]

how would one go about generating a random float between -500 and -1000 OR 500 and 1000? so any number from -1000 to 1000 but nothing between -500 and 500

[dawn gazelle]

??

[inner sandal]

magical! thanks a lot, stupid as I may look you've helped me learn

love those electronic nodes also

[languid lichen]

Anyone well familiar with the VaREST plugin?

[winter garnet]

I'm quite unsure where to post so just let me know if it's in the wrong place.

Pretty much, when trying to export a Datatable to JSON, a Text field gets converted from this:

Into this:

        "Description": "NSLOCTEXT(\"[5E855C2740E42EA3EAAFBC8217DD8DDE]\", \"BBCF2A974A9D64BC024A49B70A875871\", \"At the end of each wave, gain +4 health)\")",

I know that's due to translation and all but, is there a way to overcome this without manually having to refactor my json?

[thin raft]

What the difference from construction script and “user construction script”???

[dawn gazelle]

Post your question about it, see if anyone bites 😛

[languid lichen]

I'm trying to figure out how to access a list of JSON objects that my REST API is returning. I can get the JSON Request Object in the GET request response, but when I try to parse it with VaREST JSON functions it doesn't work because the response is a list of JSON objects [ {"my key":"value" } ]

[chilly widget]

Hello friends! Any way to know which input is currently sending information? I am getting constant horizontal input from a device in my pc, but there's nothing connected :/

[languid lichen]

for a single json object response, i can convert it to a string, strip the [] and for multi json split it on the commas to an array, and then convert to JSON again but it seems super hacky

[lucid lynx]

What do your inputs look like? Could be your mouse input for example.

[shy current]

How can i see if an event is not executing?

and return True of False

[dawn gazelle]

Your JSON response starts as an array? Like the first character received is [?

[languid lichen]

The server returns a list of JSON objects....

😅

[chilly widget]

So the weird part is that the up and down keys work, and if I remove the WASD keys, and then add them while the game is running, it works, when I start again, they stop working

[languid lichen]

And if I put the response into a JSON linter, it says its valid JSON. I think this is just a limitation of VaREST. Another reason why I should just be using C++

[shy current]

?

[languid lichen]

For gameplay or debug?

[shy current]

gameplay

I need to check if the object is in the air to apply velocity based damage

@languid lichen

[sweet silo]

wow i couldn't thank you enough iv'e just installed it this is brutaaaal

[pliant jewel]

Hello,

Im using the AI perception component, and I'm unable to get two senses working in tandem.
I have tested sight and hearing, and individually they both work.

However, if I attempt to use both, only the first sense i add works.
(i.e. Add sight then hearing, only sight will work)

Any known issues that I should be aware of?

[tough cipher]

Hello,
I'm trying to change light intensity on a light based on the distance between the objects and the main light source and can't quite figure it out

[pliant jewel]

Your distance calculation is incorrect

Subtract the position of one from the other, then take the length of the resulting vector

Right now it looks like you're first adding the positions of two objects then subtracting

@tough cipher

[tough cipher]

Thank you

[olive ingot]

I'm making a spell system, where I plan to use Actor Components as spells.
My only argument for this is because I am under the impression that Actor Components are less memory and performance than actual Actor Objects (as spells) and store them as variables on characters.

Is this a good way of thinking or am I having a wrong perspective?

[twilit heath]

its ok

as always with software design, true answer is "it depends"

[languid lichen]

Is your object class based on Pawn class or have character movement component in it? It has a function "is falling" that tells you if it is in the air.

[shy current]

in know

but it not a chacarater

it and cube

[trim matrix]

Stupid question before I ask another later. Is there a way to see where a custom event is being created?

[shy current]

Im trying this with trigger box

it work

but it only detect player?

[stray island]

@trim matrix wdym

U want to create one ? Right click in bp and create it

Write “custom.. then add custom event

[vale torrent]

can a blueprint function library function input pin default to self?

[tight schooner]

If you can't put "self" in the macro then probably not.

If you can, then first do a check if the input is valid, and if it's not, use Self

I believe you can set a function timer on another target. I don't think I've tested it, but you could potentially use a function timer as a bootleg interface, lol

[trim matrix]

Alright, I have a custom OnDeath event and it's showing me my death screen when I go to the menu or a new level so I was trying to double back and debug it.

[kindred tinsel]

How can I create a physics led player so that if a projectile like a ball would hit him, he would actually get hit, sending him backwards, instead of the normal taking a hit and not flinching? Im not talking about physical animation, I already have that. I mean the player character itself getting moved by other objects.

https://cdn.discordapp.com/attachments/423541330514411521/811541807199551528/2021-02-17_02-14-37_Trim.mp4

This is the current project but I want the force of another object to actually be able to move the player, not just bump his ligaments around. Like what happens when you get hit in games like Gang Beasts.
Im trying to make a sort of third person mash up of Stick Fight and Super Smash Bros.

[trim matrix]

I think I figured it out

[royal anvil]

Someone here who has done a spectator mode with "set view target with blend"? I can easily transfer the cam view with "set view target with blend" from client pawn to server pawn, but then the view of the client after transfered is not rotating.
I have a lot of tested with debug arrows and a lot of details. But to not overwhelm somebody here, please let me know if someone here has good knowledge about this

[trim matrix]

Hmm, so the 'You died' screen that I have uses the OnDestroy event but if you change level it activates the OnDestroy event. How can I branch the death screen so it only shows when my player actually dies?

[kind gale]

I'm trying to call the TakeRecorder from a blueprint, and examining the source it seems doable

    /**
     * Start recording with the current take
     */
    UFUNCTION(BlueprintCallable, Category="Take Recorder|Panel")
    void StartRecording() const;

But I can't seem to find anything in Blueprints which references this code. Am I going about this the right way?

[astral estuary]

I am trying to make a blueprint function that takes an Array<T> as a reference and shuffles it

how do I tell blueprint that the type doesn't matter?

it demands a type

Wildcard is the thingy

[faint pasture]

@olive ingot It's fine, I've done spells as components. Spells as actors is fine too, don't worry about memory in this case I less you plan to have tens of thousands of spells flying around.

@olive ingot also look at GAS if you think it's be a good fit.

@trim matrix Make death an actual state, not the destroy.

[astral estuary]

Wildcard doesn't work 😦

Yolo, Macro plays nice with wildcards

[tight schooner]

@astral estuary thanks for reminding me about wildcards lol. I think some engine macros use those.

There may also be a "shuffle" node for arrays.

[astral estuary]

It doesn't take my stream in 😦

but I managed to make that macro for fisher-yates and it worked

[glossy egret]

cant seem to use datatables in actor components for some reason.
if im trying to make a complex and flexible health and status effects system that i can just attach to any type of character. what would you guys do.
i already know how i would make the system. but i was really needing to be able to pull info from a datatable

it would make things alot nicer to have the whole system in a table. because there alot of effects i want to support. and it seems like the cleanest implementation

for what im doing at least\

[trim matrix]

How would I go about Destroying an actor and Creating a widget, adding it to the viewport for 2s?
https://i.imgur.com/G3Qy2Je.png

I thought it'd be a branch but thats only true/false

[glossy egret]

are you trying to kill the player and show them something on screen at the same time

[trim matrix]

Player is picking up an item

So they're collecting it, the game is deleting the item from the world but also displaying that they collected one of the item on screen for 2s

i think im just an idiot, I put the widget part after destroy actor and it did what i wanted

[glossy egret]

explain 2s.

but as for deleting an object and showing an icon you should just be able to do them one after the other if you already have the refs to the item and the info you want to show

[trim matrix]

2s = two seconds.

[glossy egret]

oh yeh. show icon-delay=2-delete icon lol

[trim matrix]

Well doing it this way isn't removing it from the hud

[glossy egret]

UMG is kinda janky. and sometimes non-intuitive. i might have to see exactly what your doing with it the help.
but ive done it in my UI before. but its been a while. and i lost the code to corruption.

now looking at your code there. are you doing that in the player pawn

[trim matrix]

https://i.imgur.com/pTsTkqs.png

Here's the entire blueprint for reference

[glossy egret]

give me just a sec

[trim matrix]

mk

Also, a side question on my collectibles HUD I'll end up having maybe 2 other items the player can collect. Is there a way to show only that specific item or would I need a UI widget for each?

[glossy egret]

when i was working on my UI. i had like a message center and i managed to get it to make a list that i could add and remove from in UI. in fact. im not sure what your working on.
but it might be easier to put up a perminate Widget UI. and just handle the display in the widget via commands from your pawn

then you could show a texture of your icon and ether hide or remove it directly in the widget. its probably alot easier

and you can set it up so they ether have fix locations. or if multiple would happen at the same time. they would list off next to each other

[trim matrix]

I feel like that's a little bit out of my depth.

It took me like 10 hours to figure out the sequencer and movie render queue to make a flipbook only to figure out that wasn't what I needed to do.

I ended up needing to make an animated material with flipbooks and put that in my UI widgets

[glossy egret]

every section of unreal. as a solo dev ive basically had to spend a week to a month with every system whether i liked it or not. its not so bad.
UMG can be aggravating when you need it to do something that it doesn't already have a tool for.
but the rest of it just works. and its not to bad

[trim matrix]

Yeah, I'm just trying to not have to learn a new system and end up re-doing a lot of my work currently lol.

[glossy egret]

If your working solo. you may have to touch every system in UE4 at some point. so its not a bad idea to look up some tutorials

i know the feeling

thats why ive put off C++. because ive written so much code. and if i learn how much better c++ can be. ill probably want to rewrite everything

but UMG isnt that bat. and youll probably need to learn it at some point. its also harder to fix stuff after you do it one way. and then you build the rest of your code around it.

my gun code took me a month to rewrite. because it affected nearly everything in my game. and it was a chore

[runic osprey]

Hey everyone. I'm trying to use a trigger box to move a wall in my level. I want to have it set up so that when an actor called "key" overlaps the box it move a wall with an actor component called key. So far I am unable to get this to work. Any help is greatly appreciated.

[trim matrix]

I feel like if I start moving too quickly and touching multiple systems at once or re-doing things I'll get overwhelmed and lose interest. Trying to work at my own pace I guess. I wanna build the systems first and then combine/polish them afterwards.

[glossy egret]

thats fair. i dont know who long youve been working with UE4. learning stuff burns me out to.

[trim matrix]

Uhh I messed around with UE4 for maybe a week or two this past summer and picked it back up a week ago. So, probably only a month in total.

[glossy egret]

oh yeh. it took me like 2 months before Blueprints clicked. i nearly quit becuase i couldnt get basic things figured out. and then after the second month. milestones became basic tasks. and from there i just took off with it. UE4 is a bit of a learning wall

but once you get it. you can do practically anything with ease

[trim matrix]

I think it has something to do with Remove from Parent.

[glossy egret]

yeh it doesnt sound like the right command. have you tried just destroying the widget

[trim matrix]

What node does that come off?

[glossy egret]

hold on a sec. i took a screen shot. but im having trouble finding it to upload

mabey that might do it. i just right clicked in my pawn and typed in widget

[trim matrix]

That didn't remove after the delay either.

It's weird, I can create the widget, add it to the viewport and specify a delay but I can't remove it afterwards lol

[glossy egret]

im testing stuff on my pawn

[trim matrix]

Appreciate it.

[glossy egret]

it cleared it from my screen

[trim matrix]

Remove all widget?

[glossy egret]

yeh.

[trim matrix]

With a delay?

[glossy egret]

ill help in a voice call if you want to share screens. but i need to walk my dog first.
and yeh. i used a delay.

i basicly wrote what you had down in my player

[trim matrix]

Alright, I'm gonna google some more and we can try that.

[glossy egret]

cool. give me like 5 minutes or less. and ill call you

[trim matrix]

I think I've narrowed it down to Destroy Actor, because if I put that as the last node the delay works correctly or if I just change the visibility of the item and then do the viewport, delay etc it works correctly

[ocean mantle]

can someone help me figure out why i cant get simulate physics to appear in my list ?

ue4 4.25

https://www.youtube.com/watch?v=lvADZd49Q_Q&t=997s im following this video to

[dawn gazelle]

Are you using this plugin?https://www.unrealengine.com/marketplace/en-US/product/dynamic-combat-system

The tutorial you're looking at is specifically for implementing dual wielding using that plugin, and the class that he's using isn't native to UE4.

[ocean mantle]

ok

[true valve]

Is there a way to hide the specific areas of the mesh via blueprint?

i.e I want to hide the chest, shoulders, legs, feet. I wonder if I could use Hide bone by Name

[elfin badger]

does anyone know the best way to go about a grid placement system where only the blocks around the current starting block are valid?

[steep hazel]

quick question: would it be better to hold weapon 'mods' that are able to be quick-swapped once collected as actor components or as code imbedded in the weapon itself?

I should say that this is for a Rogue-like

[wind sequoia]

usually people have it in the weapon

[prime snow]

You dont want anything that are "n-items" or swapable as components, should be an array somewhere most often. Components can't be spawned afaik

[lime sphinx]

can you delete the "Switch Cameras if HMD is enabled" On the top down starter kit?

[trim matrix]

Trying to make it so that when I pause my game I can press the same button to un-pause my game without clicking the resume button. But when I pause it the game isn't focused on the pause menu and you need to click the screen to be able to interact with the buttons.

I know that Set Input Mode UI Only exists however I don't know where to put it in the blueprint.

Here's my blueprint: https://i.imgur.com/civZjNL.png

[lime sphinx]

Can someone tell me why the weapon isn't showing up in my guys hand?

[elder gulch]

i suggest placing to socket with your own hands

like parent gun inside the socket

and use it that way

but

idk

mybe u wrote the name of the socket wrong

and u used spawnactor?

hmm

[lime sphinx]

I spelled it correctly.Just double checked that and yes I used spawn from actor class or something like that

im using the top down character template so idk if that messes with things since it already had stuff attached to the Event BeginPlay thing

[short fractal]

Hey, Newbee here, I ended up nesting 4-5 layers of structs within structs in my blueprint, I just wanna know if that might cause problems in the future, any thoughts?

for ex: I have an item struct which containts weapon/armor data struct which contains attribute structs and also contains socketed gem structs which contains another set of attribute struct etc.

[simple dragon]

AAAAAAAA my brain XD

[lucid lynx]

https://tenor.com/view/moms-spaghetti-intensifies-spaghetti-moms-spaghetti-pasta-gif-18168370

[final orbit]

can you set bitmask integers directly in struct? i know it's possible to make a bitmask and set it in bp but was just curious if its possible to just set it directly in struct members (data tables)

also can you have function delegates as struct members in blueprints?
thanks in advance for any advice and answers :]

[elder gulch]

ok but why?

[high sapphire]

Hmm, I'm kinda stumped on this one, and Professor Google isn't being helpful
So basically, I created a widget for showing the player a level and asking if they want to enter that level. It's kind of like a level select, where the player walks over a trigger box (which shows the widget until they walk out of the trigger box) and they're prompted about entering the level.
I've got the logic working for changing the text/image to reflect the level, and it sends the player to the correct level. However, I got the idea to add a star icon to the window when the player has collected all of the items in the level.
I figured the best way would be to give each level their own "items collected" array and a boolean for whether all items were collected. Then the widget could reference the boolean for whether the star should show or not.
But apparently you can't reference level blueprints in other blueprints, so I'm not entirely sure how to make this work.

[dawn gazelle]

You'll probably want to use a save game object and store the value of the levels in it, and then you can read the values whenever you need to.

[high sapphire]

So the level blueprint can send information to the save game object?

[teal dove]

Hey guys! I would like to ask, what is a good way to switch between two control mechanisms for a pawn?
For example I have a spaceship with two different control functions (one is physics-based and the other is not), and I want to switch between them manually.
I could add an "if" check after the InputAction, but I wonder if there's a more elegant solution to this?

[orchid garden]

i just made a simple function thats a if check called 'isPrimary' so i can reuse it for different keys. I don't know of a more elegant way myself.

[teal dove]

@orchid garden Yeah I guess there isn't, yours sounds like a good solution. I will do the same then, thanks for the suggestion. 🙂

[high sapphire]

I have this in my level's blueprint, but I'm not sure how to set up the rest (the widget & the save game object)

[dreamy kindle]

Does anyone know how I could create a volume that would turn off selected meshes, but still allow them to keep shadow? When entering volume it toggles off than when leaving volume it turns back on?

[teal dove]

@dreamy kindle This might help you I think https://answers.unrealengine.com/questions/332702/disable-rendering-of-object-but-keep-shadows.html

[dreamy kindle]

thank you

[teal dove]

@dreamy kindle You can then use these two nodes to hide the actor but keep the shadows on (haven't tested it myself though)

[chilly jetty]

Hi a simple question

where can i increase the speed of the projectile for the base FPS Example?

[sweet silo]

check inside the blueprint setting i think

[chilly jetty]

ah right its in the projectile component

thanks

[sweet silo]

my pleasure

[stray island]

Why unreal has problems with moving folders , they keep other folders empty but still say they have the files in

So empty folders be stuck

Anyway i will use the migration trick , but wondering if there’s a reason behind these errors

[tight schooner]

Try resolving redirects (right click on folder) and restarting editor

[teal spade]

@stray island so I think my—getting different results each runtime—has to do with floating point precision. Which is fun.

[stray island]

floating point ? I don’t get it

[upper adder]

Why cant i add a timeline in widgets?

[outer lance]

What are reasons for the path object to be invalid, when the path should be possible to generate?

It works sometimes, but more often not, zero points f.ex.

[tacit shard]

hmmm, why cant i extend collision/sphere/box/etc components in blueprint?

i just want a sphere component that i can add functionality to for handling interactions with actorts

-t

[hollow drift]

can i change mesh only socket locations on runtime?

[tacit shard]

i have world items and characters that can both be interact able, they obviously dont share the same base class (actor and character) so i need to create an interaction component that i can attach to any actor to make them interactable

had no problem with this in the past using c++, simply extending sphere collision and adding events. to my surprise i cant extend such a component in blueprint

thought it would be as simple as create an actor component blueprint extending the sphere collision component > custom Event Interact in event graph > attach to any actor and bind my functionality there

[crimson swan]

how would i go about removing this error?

it's not game critical but i'd rather not have errors

[tacit shard]

wherever the call is causing that error, check if the object is valid before accessing it

[crimson swan]

oh a isvalid handles that check?

[outer lance]

@crimson swan add a check before casting, of .isValid

[tacit shard]

i think so

[crimson swan]

alright gotcha, thanks boys

i actually didn't think isvalid handles that

[tacit shard]

yeah it does a bunch of checks

including to see if its pending garbage collection

[outer lance]

I have a lot of those IsValid nodes, wonder how much it hits performance. In porting to c++ there is an IsValidLowLevelFast which IDK might be faster..

[teal spade]

I'm using world coordinates (plus multipliers with aforementioned for loops), and that doesn't bode well with a grid system. Gives inaccuracies all over the place. Which breaks the code.

[tacit shard]

i dont think its gonna cause any real issues unless youre trying to use it in tick on a massive loop or something

[viscid shard]

spaghetti

[tacit shard]

thats the nicest spaghetti ive seen

[viscid shard]

it was better untill i bought electric nodes

lol

[tacit shard]

https://pbs.twimg.com/media/DeiyJrDUwAAJQJ8?format=jpg&name=large

[viscid shard]

omfg

id die with my ocd

[tacit shard]

just noticed

doesnt even compile haha

[viscid shard]

i was about to say of course there'd be an error

but you beat me to it

[tacit shard]

https://qph.fs.quoracdn.net/main-qimg-f99e987ffaa16ab2175168e90b9ee3ca

[viscid shard]

where are you getting these examples

hope they arnt yours lol

[tacit shard]

just googled ue4 spaghetti code

nah lol

[viscid shard]

kk good

[tacit shard]

so, is there any way to extend sphere component in blueprint?

[viscid shard]

i never used to be ocd but now i am atleast with certain things. kinda want to contact these people to have 10 mins with their code

[tacit shard]

do you really? lol

are you sure?

and, 10 mins?

[viscid shard]

yea wouldnt take me long to clean it up lol

maybe 30-1h for second example

[tacit shard]

rather you than me:D

[tacit maple]

Hey guys, if you call an event dispatcher from a bad reference will it error or does it just 'not do anything'?

[maiden wadi]

@tacit maple Do you mean reference as in memory pointer? Blue blueprint variable?

If yes, then the point is moot. Don't use pointers without checking their validity with a cast or IsValid.

[tacit maple]

Yes thank you!

[covert stirrup]

silly question I guess, but how do I bring up the full console, not the console line opened with '¬'

[earnest tangle]

Use a branch or a multigate

branch can check if game is paused and do appropriate action, multigate can function similar to flipflop, but you can reset it... branch would probably be better tbh

[primal smelt]

Just attempting some problem solving for a mechanic. Is there a simple way to have one scene component orbit another on a single axis on tick? I have two cubes childed to a scene root. CubeA is at 0,0,0 and Cube B just has a Y offset of -200. I'm trying to use RotateVectorAround axis (I just want to rotate on Z axis) but having difficulty figuring out what it was doing. Any suggestions please?

Edit: I don't think I will be able to use a rotate movement component because for the actual mechanic I am using a socket

Right now I'm not even fussed about rotation (I think that should be easy with a simple look at vector), it's the location I am struggling with

[smoky quiver]

hiya whats a good tutorial or tutorial series or course or whatever if i wanna start using unreal and blueprints

[primal smelt]

gamedev.tv have some good courses, they're available on Udemy as well

[prisma stag]

Im trying to gather resources in my game so I check if the hit actor is say, of type tree, then see if the item held is a hatchet but the damage functions never fire. Can someone spot the problem?

[opal pulsar]

hm never used macros before

are you sure the stuff before the macro is firing?

[prisma stag]

Yea. I did a print string and got the hit actor and it worked.

[opal pulsar]

odd

[earnest tangle]

Most likely the problem is your logic that compares the hatchet

[opal pulsar]

maybe im just missing something

[earnest tangle]

The == node dropdown displays items that are not really valid comparisons for certain objects

It seems to be a regression in 4.26 as it didn't use to do that before

[opal pulsar]

interesting

[prisma stag]

So what could I do instead?

[earnest tangle]

try doing Current Item -> Get Class, then compare the result of that to the BP class

most likely the object you're trying to compare the current item is actually the class, so it won't work correctly (since class is different from instance of the class)

You can also do Current Item -> Cast to BP_Whatever, then right click the cast node and choose "convert to pure cast" or whatever the option was called, then you can use it with a boolean

[prisma stag]

I did this but that didnt work either

[earnest tangle]

Oh, yeah actually your other checks have the same problem

so you'd have to either do the get class or cast for the hit actor as well

[opal pulsar]

okay i narrowed down my problem lol, what can i do to fix it reporting an infinite loop?
i assume it wants something to run, but what?

[prisma stag]

That worked. Thank you very much. Very weird.

[opal pulsar]

also sorry for interrupting you, derek

glad you got it solved

[prisma stag]

No problem. Were all here to get help.

[opal pulsar]

hehe yeah

[earnest tangle]

@prisma stag it's just a question of object vs class. An object's type can be a certain class (eg. "an instance of BP_hatchet"), but it cannot equal its class (a concrete hatchet that's spawned is not the same as the blueprint it was created from)

@opal pulsar it's probably reporting that incorrectly as the infinite loop spot. The detection doesn't necessarily figure out the right spot where it happens

[prisma stag]

That makes sense. Now the objects I was checking was their respective class. Now if I make a parent class and inherit from that, will the getclass get the parent class?

[earnest tangle]

at least I can't see anything in that function which would loop infinitely

[haughty latch]

Been copying and doesn't work any suggestion on where Im going wrong. Cheers. (Doesn't get attracted )

[earnest tangle]

@prisma stag no, you would probably need to use cast to BP_ParentClass - that would work for all child classes

[prisma stag]

Ok cool. Thx

[opal pulsar]

makes sense, cause i was trying to fix it but it was still dying

[earnest tangle]

What's the BeginPlay in? Is it inside the spawned tile class?

[opal pulsar]

the tile class, yeah

which spawns an instance of itself but it should have a limit of 100 tiles in total

i think there is a projectile premade or something like that, if not, my call is by using AddForce

degrees is more complex

[earnest tangle]

@opal pulsar variables inside blueprints are specific to the instance - so every time you create a new tile, the variable will start from zero

[opal pulsar]

the tile number variables are all in the gamemode

they shouldnt reset, right?

[earnest tangle]

Ohh right, that is correct yes

I'm not 100% sure but I think the problem could be that the beginplay triggers before the value is incremented, which triggers another tile to be generated right away, which then triggers another tile, and another tile... with the code never reaching the increment part

try incrementing the value before spawning and see if that helps

[opal pulsar]

i found a projectilemovement component, add that to your projectile blueprint and you can tweak stuff there

[opal pulsar]

Ohhh thats smart, ill try that rn

that seems like a valid logic

it works now, thank you so much!

okay it does not

xD

it only works when you have a max number of tiles not sufficient to trigger the infinite loop flag

[earnest tangle]

Ah, yeah you can adjust it in project settings

So it's possible that you have a valid case where it's actually not looping infinitely, it's just triggering the safety check for it

[primal smelt]

Anyone know how to get a scene component rotating another scene component without using springarm or RotateMovementComponent?

By rotating I mean orbiting around an axis

[opal pulsar]

yeah would make sense

[bitter mason]

anyone knows why one can't create a child blueprint of the SplineComponent? i can inherit from it in c++ but not in blueprint. i am curious why 🤔

[opal pulsar]

okay this doesnt make much sense anymore, unless im looking at the wrong value

[prisma stag]

In the comparison I have 2 harvestable items, stone and wood. I made a base tree class then after the start of the macro I did a cast to the parent class, but if it is stone that would be hit, how would I cast to the base stone class after the cast for the base tree class?

[earnest tangle]

you can just do it the same way as you're doing it now... if you right click the cast node ther's an option called "convert to pure cast" or something like this, which makes it so you don't need to connect it to an exec pin and you just get a boolean value out of it that tells you whether it succeeded or not

[prisma stag]

Oh. So I can plug in the hit actor to the object and if the object is of type BP_BaseTree then the cast boolean would return true?

[earnest tangle]

yeah

[prisma stag]

wow.

Thanks.

[prisma stag]

That doesnt seem to work. But even if I did a pure cast for the tree itself it doesnt work.

[earnest tangle]

what does the graph look like now?

[earnest tangle]

that looks like it should work assuming the object inherits from it correctly and the other condition passes

[prisma stag]

Yep. The bp of the tree has parent class BP Base Tree

[earnest tangle]

I'd try removing the other condition just to see, or printing the result of the check so you see what the values are

[prisma stag]

Oh, whoops.

Since I remade the base class and re inherited, I forgot to change the collision settings for the objects type.

It works now. Thanks though.

[hybrid lodge]

Hello, I am newbie.. started to watch Ryan Laleys skill tree tutorial https://www.youtube.com/watch?v=qxk_Cn4w56Y&list=PL4G2bSPE_8umqJBb81b9EPjFPwWuvjVU9&index=5, and I want save learned skills so that you open our project/game again it loads those skills that previousley was learned.. The issue is that (the basic concept I understand, that you need to save those variables ant put into save game object) I am confused which variables needs to be saved and loaded, so I watched his load/save tutorial. But still the skill system is a bit complex for me.. Anyone tried/did his tutorials or have suggestion how properly do save load .. ;/ I am really frustrated, trying things all day and no progress..

[hearty valley]

@hybrid lodge I'm unfamiliar with the tutorial, but if you're having issues with saving/loading variables in BP have you looked at this doc? https://docs.unrealengine.com/en-US/InteractiveExperiences/SaveGame/index.html

[hybrid lodge]

@hearty valley yes, first thing what I have done is opened ue documentation. I can send you over the project it. it is light weight based on ALS V3

[tacit maple]

My mobspawner is currently using soft references and then Async loading them into the game, however it causes a slight hitch on the first spawn.

Should I Async load all my enemy classes into memory at the start of the level? What would be be the correct method here.

[void matrix]

is anyone familiar with HISMs?

[neat surge]

Does session get destroyed automatically when the level switches?

[primal smelt]

I have a rogue print node that will likely take me ages to find manually. Need to put a stop to it's polite greeting spam, is there a way for me to bring up a log that states precisely what blueprint is printing the message?

[dawn gazelle]

you can use the "Find results" tab, search for the specific text that is being displayed and click the binoculars button on the far right - it'll then show you all instances of where the text appears.

you can even double click on them and it'll take you right to the node.

[primal smelt]

Good to know, cheers!

[kindred mason]

is there a way to use a negative number in a maths expression?

[dull tree]

Need help with math 😛

i got this

both have value 700

so it should return value 1

so it looks like this

like 700/1000

idk why

[bitter mason]

so, what do you do with the 1 value?

[dull tree]

set to progress bar

percent

[bitter mason]

but how? probably the problem is there and not in the part of code you shared

[dull tree]

maybe

give me sec

it should work

and on begin play i set max health to health

[rancid ridge]

I want to create a general function and I want to call it from different classes but I cannot find out how (no c++, blueprint only). Can someone pls give me some keywords to search for?

[bitter mason]

blueprint function library

[rancid ridge]

@bitter mason Thanks!

[bitter mason]

@dull tree show the part where you actually call the function and use the return value

[bitter mason]

you're welcome, they are very useful

[dawn gazelle]

It's a bind. The bind itself is calling the function to set the value.

[true kiln]

Hello guys, when I try to attach a static mesh component actor to another skeletal mesh component if I add a socket name (the socket is on the root of skeletal mesh a with a body) physics goes crazy otherwise both working perfectly... any idea where's the problem?

[bitter mason]

ah okay missed that part haven't played with widgets that much

[dull tree]

yep

and i dont know what i am doing wrong

math should be fine

[bitter mason]

so is the Percent parameter supposed to get a value between 0 and 1? because that is what your function puts out right?

[dull tree]

yes

[bitter mason]

why is it called percent then?

[dawn gazelle]

I'd say verify your values. Use print strings or breakpoints to see the value of the variables at run time.

[kindred mason]

debug mode engage

[dull tree]

😛

[bitter mason]

but nevermind me, datura is more helpful 🤪

[dull tree]

i am so **** dumb

xDDD

i was making changes in UI that i dont even seee

xDDDDD

now its working

[trim matrix]

@true kiln if they both have collision enabled physics will freak out yes

[dawn gazelle]

Why is collision one of the more annoying aspects of Unreal? -_- I have two actors. One has just a cube static mesh assigned to it with a specific collision preset set to it. When doing a capsule trace by channel with an appropriate channel that should detect the collision preset, I can detect this actor no problem.

I have another actor, that has a collider, and a static mesh. Despite having the exact same collision preset set on both the collider and the mesh, the capsule trace does not find this object.

Anyone have any ideas why my second object would not be detected by the trace?

[weak grove]

Can you tell me if AI WITH blue print is better or with BEHAVIOUR TREE

[worthy frost]

no need for caps, and it depends really on what you are doing. Super complex AI, then BT might not be suitable/might be tricky to get right. Though i have manage to do complex AI in BT, it was not pleasant. But then you have to make your system. If its just a normal AI (like a zombie or a wandering pedestrian) then Behaviour tree is good

[weak grove]

okay thanks man

btw i need it for fighting ai

[worthy frost]

fighting AI should be ok

[past girder]

hi, i have a LineTraceByChannel node and getting the impact point, location and distance from where the player is looking at and hitting an object, but how could i calculate where the closest mesh to where the linetrace hit and get that value?

[maiden wadi]

@past girder Just any mesh? A mesh in a specific actor type? or?

[past girder]

Some cubes around the scene

[narrow bear]

Am I right in understanding that while checking "Config Variable" points you to Saved/Config/PLATFORM/Game.ini, for a built game this would be GameUserSettings?

(I noticed this was the only ini file the engine generated)

It overwrites the Game.ini entry I imagine?

[astral mural]

Yes and no, Game.ini is the right place. I think it remains there in built games too
GameUserSettings is used mostly for Graphics/Scalability settings, you don't usually touch it unless you're making a Graphics Settings screen

You can open the file up in notepad and actually look at the settings stored there

[narrow bear]

There's actually nothing there

I mean, in the built server

There's only Config/WindowsServer/GameUserSettings

Maybe I should just make a file myself?

[hearty lintel]

guys, i need to make a vehicle editor - save the user preferences (so basically save a bunch of skeletal meshes) - load the preferences to display the vehicle during gameplay.
what would be the best way to save these preferences?

thank you 🙂

[worthy frost]

use the SaveGame class is the only way in BP

you can have multiple savegame slots

https://docs.unrealengine.com/en-US/InteractiveExperiences/SaveGame/index.html

[hearty lintel]

thank you, i think i wasnt clear enough, given that i need to make a savegame, should i make a structure or something else

[worthy frost]

the stuff you save will be in the SaveGame class, so if you need to save different vehicles, then a struct made into an array property for the vehicles is one way or a Map with vehicle id and struct holding the data for it

that is if its persistent

if its all runtime, then use GameInstance and struct to hold the user preferences

[hearty lintel]

ok perfect that's what i was doing 🙂 i only had the problem that in 4.21 the structure somehow doesnt update when i change stuff

so i thought i was doing something wrong

thank you really much dude

[maiden wadi]

@past girder Still depends on how your meshes are set up. But the short version is that you probably want to create a function and then use something like SphereOverlapComponents, then for loop over the returned components list, cast them to StaticMeshComponents, and check if that static mesh component has your mesh type. After that, you can either pool them into a local array in that function and feed that list of components into a function that'll return the closest to a location, or you can make your function do that while you're getting the meshes. First is probably better.

[mighty fable]

Hey guys, I was curious if anyone could help me figure out how to make my 3rd person character move in corresponding circles when pressing "A" or "D" instead of moving Left or Right.

[worthy frost]

you mean rotate on the spot?

[mighty fable]

yeah, kind of to represent movement in super mario 3d world

[icy lotus]

Oh heres the blueprint channel :p

[worthy frost]

@trim matrix GameMode is crucial to the Game, regardless if SP or MP.

it defines the rules for the game, who can connect, etc

in SP, its mainly just rules

tho tbh, you can do w/e in SP

cause you don't need to worry about multiple players, etc

i have seen SP games do everything in GameInstance (which is bad)

[mighty fable]

not sure what that would look like

[maiden wadi]

A lot of youtube stuff teaches people to use GameInstance. Youtube and college stuff is also very bad about stuffing everything in the level blueprint.

Pretty much. But the college level doesn't care. I imagine that a lot of those courses are over simplified because it's much easier just to throw everything into a place where people have access to it. If they pass their tests, it doesn't matter after that.

[icy lotus]

So, im pretty new to this and generally was looking up ways to set a dash, move, jump, beginner stuff. And i got it down to the feel I want, im just wondering how I could either, A, disable dash while jumping, and or B, disable dashing on the Z axis if thats possible? As you can see i rocket into the sun. Kinda wana keep the dash on the floor.

🤔

[maiden wadi]

@icy lotus Are you using a Character class?

[icy lotus]

not 100 perecnt sure but

and the dash

is what i have

pretty much no airborn dashing or z axis dashing

is my goal today

but i am but a simple man

[maiden wadi]

Do you always want the dash in the direction that the player is currently moving towards?

Or would you rather it be towards their current key inputs?

[icy lotus]

right now its set at the key inputs? well atleast its working that way

whatever direction im moving it shoots me that way

[maiden wadi]

Right now it's going off the direction they're moving. But say you are running forward and want to dash back. If you immediately switch from W to S and then hit dash, you'd still go forward because the velocity won't zero that fast.

[icy lotus]

right i just noticed that authaer

hmm...

So to start I take it you can individually assign w/a/s/d/ to the direction you want to dash?

instead of just on velocity

[maiden wadi]

@icy lotus Here. Do you have the usual project default MoveForward and MoveRight events for axis inputs? If so, try this out.

[icy lotus]

For movement what i looked up and did is

and set those

to what felt good

on the right

[maiden wadi]

Okay. Replace my GetMoveForward with a function you should have called GetVertical, and same with the other axis.

[icy lotus]

alright lets see here

is your liste replacing my movement input chain?

as well as dash?

or like, its own thing added onto what i got

[maiden wadi]

What I posted should just replace dash. I just used my J key for testing.

[icy lotus]

ah alright lets see here

[maiden wadi]

Should keep it from dashing up or down, and only work when on the ground.

Actually it'd work when swimming or flying too. So you might change that a little later if you implement either of those. But at least for normal walking and falling movement, this works.

[tawny shuttle]

hey guys I have a character that needs his z value to change as he moves left or right which I got working with a launch but now the issue is, is if the player holds either button they can fly lol

[icy lotus]

oh sure, uh, for the get move forward and side etc/ should those just be replaced with like, get input for what i have set?

[tawny shuttle]

wait

are you talking to me

[icy lotus]

no authaer

[tawny shuttle]

no

nvm sorry lmfao

OOOOO

authaer is here!

my man!

[tawny shuttle]

authaer fixes everything stg

[icy lotus]

oh awesome, one sec.

[maiden wadi]

@trim matrix Dragon head.

[icy lotus]

Question, what is that Transparent box with the X?

[maiden wadi]

Haha, yeah. First response from Tim Sweeney. https://forums.unrealengine.com/community/general-discussion/7145-default-blueprint-sprite

[tawny shuttle]

yo if I use a get velocity and vector length then use a clamp and a make vector can I get rid of my issue or nah?

[icy lotus]

this boy

[tawny shuttle]

never mind lmfao he still flies

[maiden wadi]

Vector times float.

[icy lotus]

*float thats right

i knew ive seen it before

[maiden wadi]

@tawny shuttle What is your z value problem? Not sure I'm following the question.

[opal pulsar]

how can i have a day/night cycle without unreal yelling i have an infinite loop?

[tawny shuttle]

ah yes I need the character to move upwards when moving left or right

I'm using a launch character but as of now if you hold the keys he just kinda

flies

[icy lotus]

oh my god it doesnt dash when your airborn

and it feels the exact same

authaer your great

😳 👍

[tawny shuttle]

BRO THAT'S WHAT I'M SAYING

authaer is a raw beast

the real og

[icy lotus]

NOW i need to put the dash on a cooldown, i take it thats pretty simple?

[tawny shuttle]

I personally use delays

I use a set is dashing and a delay

[icy lotus]

thats it pretty much?

huh

[tawny shuttle]

might be better ways of doing it BUT that's worked for me

yeah when the key is pressed set dashing to true use a branch that checks if dashing is true or false hook er up

that's what I do

[maiden wadi]

I usually use macros. Compare a local float to the gettimeseconds.

[tawny shuttle]

then use a delay and a set dashing to false

[icy lotus]

the set is dashing thing is a variable you have to make yourself?

[tawny shuttle]

does that work better in your opinion?

yepyep

I'd go with authaers stuff tho

his will work without issue lol

[icy lotus]

oh well im down to try anything

as long as im learning

[maiden wadi]

Timers cause tick every frame. Delay is just a compact timer. Comparing a float will only happen once on button press.

[icy lotus]

hmmm

[tawny shuttle]

fair enough so its more efficient?

on resources?

[icy lotus]

i take it its a really minor change but hey if it works it works

[tawny shuttle]

I'd still go with his rec it'll work the same and probably run better

I never even knew that's what macros did

[icy lotus]

for knowledge sake

how do i like set a new veriable

like set is dashing

to read that its dashing

or any new variable like that

[paper temple]

new at programming and I just can't wrap my head around on this error.... what have I done wrong?

[maiden wadi]

@icy lotus If you put this in a macro, you can use it on your Dash pretty easily.

[tawny shuttle]

which part of that would be the cool down?

time in seconds?

[maiden wadi]

Delay time.

[icy lotus]

Im so unfamiliar with those, hahahah

[tawny shuttle]

when someone does get the chance I do need the my characters z value when moving left and right but not let him fly

basically just change the z value a set amount then drop him

[maiden wadi]

@trim matrix AddUnique will check the array's instances to make sure another instance doesn't have the same value before adding it. Normal add will just add it to the array with no check.

[tawny shuttle]

authaer literally is a walking dictionary of information

an absolute mad lad

that's why I PREACH the gospel of authaer lmfao

dude comes on and fixes problems like a snap of his fingers

[icy lotus]

i learn

[maiden wadi]

@tawny shuttle The changing height thing is difficult given that it sounds like you're using Axis inputs. Initial thought would be to trigger an event and use a doonce on it, and reset that using Landed events. Or that depends on when you want it to retrigger.

@paper temple Your Weapon pointer is invalid. Possibly has not replicated correctly.

[tawny shuttle]

if it makes anything easier I don't have to worry about Y movement it's a 2D game I just need the character to move upward on moving left and right

[trim matrix]

hey all im working on a godgame/colony sim style game

im stuck on something tho, Id like my other ai's not to work on a task thats already assigned to someone else

[maiden wadi]

@unique flicker AI requires at least a Pawn level. Controllers cannot possess anything that doesn't inherit from Pawn or Character.

[trim matrix]

I could probably bool it but thatd bring issues like if the ai dies or the task gets aborted the bool would still be tagged as true

its more that id somehow have to implement a system that untags the bool if the task gets aborted

[icy lotus]

@maiden wadi I know this isnt the way you posted but this is probobly the way you were discribing the other guys would? It set the delay

[trim matrix]

so yea im stumped 😛

[icy lotus]

😳

i mean it worked XD

¯_(ツ)_/¯

[trim matrix]

ints are just rounded down floats tho?

[winter niche]

is there any way to get the player controller from an UObject-Blueprint?

[rose shore]

have you thought of using modulus division? - divide by 10 and then if the remainder is 0 then it's a multiple of 10

this node might help

you can floor the remainder if you're worried about rounding errors

no worries 😄

[rose shore]

get player controller

my UI is non-interactable despite setting the Input Mode to UI only and setting show mouse cursor to true. I've tried googling it but only found mention of 3D UI issues. I'm on 4.25.4

[prisma stag]

Hello, Im having a problem where the even if nothing it hit, the execution still gets to the return node.

Ah that makes sense. Would making it a macro work?

What else could I do? Or are you saying I could use a macro?

It seems to have worked with a macro

[rough jay]

can i choose between which reference i want to use based on the boolean value?

[stray wagon]

Hello everyone !

Quick one

[opal pulsar]

hey people, any idea how can i have a day/night cycle without unreal yelling i have an infinite loop?

this is what i got atm, ofc the 10 seconds is only a placeholder for testing

[hearty valley]

I don't think BP loops play nicely with latent functions like Delay. I would take the loop out and just call the same function again after a delay in order to effectively loop

[tight schooner]

@opal pulsar Set Timer By Event node

if you want a recurring event

[hearty valley]

That would work great too

[opal pulsar]

what do i put as Event?

[tight schooner]

Drag the red delegate pin out and create custom event

[mighty fable]

How would I make it so that my camera smoothly rotates to show the player's last forward direction?

[tight schooner]

If you want something smoother, you can e.g. sample a curve asset with the game time. Lots of ways to do it.

I've never made a day/night cycle myself but Gearbox went into some detail into their system in this video: https://youtu.be/R0-ynCTdCow

[opal pulsar]

Thank you guys, it worked :D

[lime sphinx]

any reason why this doesn't work?

[unique harness]

Do you have a nav mesh?

[lime sphinx]

I think so. I originally started with the third person template because I couldn't figure out how to add things to the event begin play with the top down template due to it having a whole bunch of stuff

[unique harness]

Go to your level and press 'P'

Does the ground turn green?

While not playing

[lime sphinx]

That was it, thanks. How can I get my character to rotate to face where I click?

[unique harness]

SetActorRotation and FindLookAtRoation

[lime sphinx]

where would I put the findlookatrotation?

[rancid ridge]

Ok so I want to have different enemys but I want to use one master class. The root is a static mesh with simulated physics. I only need to change the mesh of the root node to another mesh but how can I do this in the viewport without changing it for every enemy?

[tawny shuttle]

another quick question I have my little guy able to do a dash and I'm using an eneum for different anim states issue I'm running into is when he's dashing it'll play his sprite anim for a second regardless of the delay I put or whatever I believe the issue comes down to the fact that it sets his animation to his moving sprite whenever his movement is 0 or greater so my question is. is how do I fix this

can I use a clamp to check if his movement is between 0 and base walking speed?

so if his movement is greater than the 2 clamps values and anim will play correctly?

or can I use a select to check if movement is greater than 100?

which doesn't seem to be the case since I assume a select can only have 2 options?

SHIT that's right it can!

wonder why I can't add more to this one

ah I see why

it's connected to a bool

I need somehow figure out how to do something

because I worked WAY too hard on this little dudes dash sprite for it to NOT be seen

what can I check? the default uses a bool to check if the character is moving to determine the sprite animation

yeaaahh gotta figure it out somehow

I would know how to do this in 3D but I just switched to 2D so maybe I should go there and ask?

oh cool just thought I'd ask since the way it's handling direction and movement looks different from the 3D bp

oh no

my biggest enemy

math

lemme see if this one method I just thought of works

I'm gonna add an anim update to the movement input

probably

nope

it's an enuem

enumeration thingy

enum sounds odd

oh I'm using an enum to set the sprite

oh cool!

[opal pulsar]

hey guys, is there a way to change the gamemode or the default pawn?