blueprint

[versed sun]

yes

[meager latch]

I’m looking at the doc. Ok I’ll look on YouTube now thanks couldn’t find this term

[versed sun]

something like this would give you points on your screen

[meager latch]

Oh because I see a lot of actors with this ability but from a widget I haven’t seen

[versed sun]

have an actor tell the widget what to display, the widget doesn't need to run the code

[meager latch]

Well the system I have set up only uses widgets on screen

[versed sun]

oh, it works in widgets

[meager latch]

Like this card here I want to click that widget and project from it to world space

Does it I’ll have to tinker

[versed sun]

like make it fly out ?

[meager latch]

Yes

Well not really have an emitter attack fly out but a predict projectile indicator fly out

From the card to a location in world space

Obviously the widgets are on a hud so then I would have to be able to trace from the widget location to world space

That’s what I’m going to try and do

[versed sun]

should work

[meager latch]

I think so too thanks that get me on the right track

[coral wedge]

Hello all - I have a issue, where the: Destroy actor function, that I was told to add, in a TUT that I am following, are destroying anything it comes in contact with(The pick up system works as it should). Is there a way around this?

[dawn gazelle]

You've likely plugged in an actor reference into "Destroy Actor" on your pick up item where it should be set to only destroy self.

[zealous moth]

alrighty, fun bug

I made a box actor

with no real script

if I jump on it, i sink in it and it sinks a bit into the ground

before it kinda squeezes out

how do i make this not do that?

https://youtu.be/wmdm51dgkpM

[coral wedge]

The tut I follow did like this. And its not happening for him?

[fringe frigate]

my character movement dissapeared from my blueprint?

my character bp had settings for max speed and so forth, and now i also can't move.
i found out some settings are suddenly missing so something is wrong

my blueprint, and this new test one i jsut made

[outer quail]

Hi, so I'm calling the name from firebase using a plugin. But I want to send the "name" into my widget. Where do I start? What's the keyword so that I can learn about it? I'm quite new to this, hope you understand. Thank you

[frosty heron]

just have some sort of call back. Show how you are printing the data

[neon gull]

how can i make this parameter accept any enum and not a specific one?

nvm i dont need it

: troll :

[zealous moth]

enum to byte, byte to int, int ++

[full gulch]

PhysConstraints OnConstraintBroken events or IsBroken function seem to be unreliable. Is there any known work around to reliably check if a constraint has been broken? (5.1)

[zealous moth]

so i figured it out

it turns out that mass differential changes resulting forces

so it clips

[outer quail]

is there a term where I can search in google on how to call the "Component_Name_Array" in other blueprint?

[frosty heron]

not sure what you are talking about specifically

but getting those printed value to your widget is very trivial

since you already have the data, all you have to do is make your widget listen whenever you receive data.
When the event is broadcasted, you want to update your widget.

[outer quail]

I made the function for calling the name in an actor bp called "Component_Name_BP" so the array is in there. But I want to use the array in another widget blueprint. or should I call for the data in the widget blueprint directly, no need to make separate bp "Component_Name_BP"?

[frosty heron]

Widget should just read, you shouldn't need another component at all

simply what you can do here is to pass a reference to the Component_Name_BP to the widget

Widget then can just read w/e value it has

[carmine palm]

anyone able to help me with my bp math?

Its slightly off lol

[distant hollow]

I have the following in my PlayerCharacter (on mouse click anywhere)

[distant hollow]

I also have a button that toggles the following:

But what is happening now is that when I toggle the menu on, when I clicked on any of the Save/Load/Del buttons, I have a message "No valid actor" from the above screenshot, instead of the menu Save/Load/Del
I have to click the Save/Load/Del button twice before they start to take effect (in which the "No valid actor" message would not be triggered)
Would anyone happen to know what is happening?

[outer quail]

alright, thank you 🙂

[distant hollow]

@frosty heron any clues?

[frosty heron]

just from that picture alone? nope

you can add breakpoint to debug tho

[distant hollow]

Two pics actually but yeah what would you need?

[distant hollow]

I added prints

And apparently on the first click the buttons did not print

[frosty heron]

I've no idea what I'm looking at tho, it would be really hard to debug from here 🙂

[distant hollow]

Although the image does change from hover to pressed

[frosty heron]

you can probably show more code

and hope someone got fresh eyes

I'm awake for 27 hours already

[distant hollow]

lol ok have a good rest

[frosty heron]

gl, but yea need more info

those 2 pics, doesn't say much

[distant hollow]

I'm not sure what other info I should supply hmm

[frosty heron]

it shouldn't be hard to find out why actor isn't valid when you are expecting it to be valid

find out when it's get set

[distant hollow]

Erm it shouldn't even go to the actor valid

That's not my issue

My issue is that it is not taking the button input first

[frosty heron]

wdym by button input?

[distant hollow]

This

[frosty heron]

What about it?>

i can probably guess the problem

[distant hollow]

Save/Load/Delete button does not respond to clicking the first time (although hover image does change)

[frosty heron]

if you need to click twice

Just bind this right away

these*

I think you are binding when you are clicking a button

that's too late

[valid wagon]

how do I find out which of these types an object is or how do I set it?

[frosty heron]

Bind on Widget construct or something

[distant hollow]

No, they are binded on creation

[frosty heron]

try to bind on construct

see what happend

[distant hollow]

I cannot bind them on Construct because they have to be dynamic

[frosty heron]

right, yeah it's hard to see the whole picture from here alone

im not good at reading other ppl code

but it's correct to bind on creation

[distant hollow]

Yep

[frosty heron]

So what are you saying

[distant hollow]

In fact this same code worked on my other project

[frosty heron]

Save button clicked dont get called? on first click?

[distant hollow]

Click once, image changes (from hover to clicked and back to hover) but does not get called, 2nd 3rd 4th works fine

[carmine palm]

Fixed my math lol

Multiplied by getDistanceTo instead of my max interaction distance

[frosty heron]

Dont care about the image part, make sure the event that needs to run, get to run

Print string save button clicked

[carmine palm]

and ten did a branch to check distance

[frosty heron]

see if it print at first try

[distant hollow]

Yes, I did set a print string, did not fire

[frosty heron]

this doesn't fire?

[distant hollow]

But the "Not valid actor" fired instead
(which doesn't fire when I click the button successfully)

[frosty heron]

the valid actor is apple and orange? I don't see the connection

what's button not registering have anything to do with an actor variable

[distant hollow]

Yep, doesn't

[distant hollow]

It's just a route, nevermind about the print content

[frosty heron]

Print here

[distant hollow]

What I am trying to say is

[frosty heron]

maybe ur button is blocked

by some invisible widget

[distant hollow]

Same

[frosty heron]

doesn't print?

[distant hollow]

Doesn't print

[frosty heron]

well there u go

work on that

Open Widget reflector

[distant hollow]

If it's blocked then second click wouldn't work too isn't it

[frosty heron]

see what you are hovering when u are on the button

Could be the focus as well

On Hover -> Set Focus to Widget

this may happend if you have multiple widget on the screen

The first click may shift the focus

but wont register for obvious reason

Other than this, i have no more idea

[distant hollow]

Focus worked! Thanks a bunch mate!

[frosty heron]

nope

gl next

[distant hollow]

Thanks 🙂

[valid wagon]

how do I add a blueprint interface to a class from a plugin?

[frosty heron]

can't you add it the same way you would to any blueprint?

class settings -> Add interface

[valid wagon]

it's a lidar point cloud object, this is what happens when I double click on it

I can't open it like a regular blueprint

[carmine palm]

o_o

I probably shouldn't use line trace like this for pickup

because im being too extra 😛

[distant hollow]

@frosty heron a wild throw but it is not possible to use code to create a blueprint in runtime right?

[frosty heron]

Runtime? 😄

Anything is possible tbh, but that's outside our expertise

[distant hollow]

Yeah lol
Like I create a structure during runtime using Dynamic meshes and I want to save the structure as a blueprint to be loaded in other projects/levels

[frosty heron]

Sounds like Editor time not Run Time

[distant hollow]

So it's not possible (at least not with blueprints alone)

[frosty heron]

I'm not sure what you are trying to do

It's certainly possible (im not sure with bp)

Are you talking about prefab?

Just dump some meshes together, then create a blueprint out of it

Structure don't have to be a blueprint ofc,
I had home creation in my game. I just save all of the actors I placed and re-create them whenever the player play the game

[carmine palm]

I can officially add items to my inventory. aka an aple lmao

apple*

Remove or use in inventory? nah

[frosty heron]

Pretty easy to remove from inventory

Find Item to remove, remove item 🙂

[carmine palm]

Well yea

I just have to implement drag/drop/right click/tool tip

[frosty heron]

never seen it

it looks like u are in asset viewer as well

[valid wagon]

perhaps the lidar point clouds are less blueprint friendly compared to things in the standard engine

I found this, but got stuck along the way

I think that's the way to go, but I didn't have luck when I tried. will try again when I have more time to revisit this project

[crude dew]

Not sure if this should be in blueprint , Anyone have ideas why the ! are not lining up correctly in top down view please.

I am using this Blueprint because i found when using world they would not show in certain angles so i thought I could turn them towards the player camera.

[outer quail]

I managed to get data from firebase and update into the array. But now how do I get it to update the text block in widget?

[dark drum]

I've setup a system that makes the player character actually an AI character where the AI's state tree checks for inputs from the player controller.

This is currently how I define a character as being player controlled. This does however mean the character has to be placed in the level and the 'bPlayerControlled?' var to be ticked. Can anyone think of a better way to handle this? It would be nice to have it where if a character is spawned and possessed by the character it does the relevant things to create the AI controller and set the player controller to use the cam for the actor they no longer possess.

[forest crater]

Click the Text Block and in the upper-right corner of the designer there should be an 'Is Variable' option - make sure it's checked.
Then in blueprint get a reference to the widget (Create Widget node if you don't have it yet), and then just set the text.
Also please try to keep any widget-related question to #umg

[dark drum]

For those interested, I ended up doing it this way using the possess and unpossess events.

[forest crater]

I'd recommend looking into making a Billboard Material if you want something to be facing the camera at all times.
I'm guessing the ! is not lined up due to how it's set up in the widget. If you really want to continue this route, try setting the Allignment on X and Y to 0.5, set the Anchor to the middle, and then line it up in blueprint.

[charred cobalt]

how would you get a condition to tell how fast the player is moving
(i want the sprint to end whenever the players speed <400 or the sprint bar is 0)

[thin panther]

Get the length of the velocity on the movement component, that's your speed

[charred cobalt]

thanks

[wild crater]

Is there a way to have a condition as a variable in Blueprints? Like a predicate?

[stone charm]

hey guys i just recently using unreal and i need some help about blueprint , so i try to make a side scroller shoother game everything when fine but i have no idea how to make my characther look up or down when aiming using my mouse

[dark drum]

Aim offset in the animBP is probally what you're after.

[stone charm]

ehhh what is aim offset

[dark drum]

You can make a function that returns a bool. You can always set it as pure if you want it to perform the check every time it's called. You would just perform the check inside the function and return the relevant bool.

[stone charm]

sorry this is my second day touching this engine

[dark drum]

It allows you to offset the upper body of a skeleton based on some aim value. It would be best if you google it for an in depth explanation. The UE documentation on it is pretty good.

[wild crater]

Yea but I want to know if it's possible store the function as a variable like in C++. Basically what I want, is a map of conditions to effects. If it's true, apply the effect, if not, remove it. And by having the predicate as a variable I can make the application of the effects generic. I guess I could make some kind of blueprint function object or something to provide some generic conditions. Maybe not worth the effort this way.

[dark drum]

Ahh ok, I would probably make a uobject that checks the conditions for it to be applied. When you want an effect to possibly be applied, create the object, store it in a relevant place and call a function on it that starts it to perform the relevant checks.

[outer quail]

Got it👍🏻 thank you very much

[wild crater]

Yea so I'd have to make a class for each condition then? It's not ideal but it's an option. I guess I'll have to see whether we use this much at all and how much overlap there is in conditions.

[bright nest]

Hi everyone, I hope I can explain this correctly.
I am interacting with UI in VR using a laser coming from the motion controller pointing forward, I am scaling a 2d Plane model along this laser to act as the visual laser.
I would like to rotate this plane to face the player's camera ( this can't be done in Materials because I am using Stereo layers".

I tried using Find look at rotation but I was confused on how to use that to rotate around the rotation axis " the orange part in the sketch".

here is a sketch explaining the problem:

[steady night]

Hey i have a impact point how would i go adding impulse at the impact point launching it the other direction ?

[remote meteor]

you want a impact normal

[steady night]

ok

[remote meteor]

or else if its a location, you can use Add Radial Impulse, though it would affect everything that can be affected in the vicinity.

[steady night]

impact normal then ?

its from a linetrace

so

do i just impact normal times amount ?

[remote meteor]

impact normal * amount * -1

you want to push it to the other direction

[steady night]

y

[remote meteor]

normal means the surface direction you hit

if red is your hit, the green would be your normal

[steady night]

aye ok

[remote meteor]

so you want to negate it to push the other direction

[steady night]

yeahyeah

so for the multiplier

any way to find out what is what imean times 10 is equal to what

whats a common valuie'

rather

[remote meteor]

it since this is physics

it depends on the mass of the object

but if vel change is enabled

[steady night]

yeah

[remote meteor]

everything will be pushed a similar distance regardless of mass

[steady night]

ok if vel change is disabled

and mass is 500 kg lets say

and formula for that or just test my way ?

[remote meteor]

usually i just trial and error 🤔

[steady night]

ah ok

[remote meteor]

im pretty sure there is a formula to it

but i just swing it

[steady night]

okok

[remote meteor]

you can calculate before and after location to determine the distance/force manually i guess

[steady night]

aye nice

also

why is this wrong am i just dumb

i wanna spawn the system right infron of self

[steady night]

oh

[remote meteor]

always remember Location + (Direction * Distance)

[wild crater]

Is it possible to have a C++ function only be accessible to its direct BP child? Like a BlueprintNativeEvent for private functions or changing the access specifier in a derived BP class?

[surreal peak]

I don't think so

But I'm not 100% sure

[dim agate]

Generally speaking, is it efficient to cancel the input of one key press with a different key by having the separate, second key change the input mapping context on press and then back again on release? All I want to achieve is have my sprint function (which is in my character blueprint and triggered by holding shift) disabled while aiming (holding the right mouse button) and then re-enabled as soon as aiming stops.

At the moment I have it so that my aim input triggers a series of events that essentially work to counter any effect the sprint button has but now wondering if just having it go to and from "aiming" and "not aiming" input contexts is more efficient.

[surreal peak]

You could, but you could also just set a boolean tbh

Or a GameplayTag fwiw

[dim agate]

I think that is how I would describe what I've already done.

[surreal peak]

Idk if adding removing contexts is really needed.

If you were to change several actions, sure

It to disable just one, not sure

[dim agate]

Yeah, it's just one so far and I don't expect that to change.

I'm not sure if my scripting has been the most efficient with this tbh so I was wondering if there was an easier way to tell the game "while this input is being held down, disable this other input".

[surreal peak]

You can probably do that with contexts but again, I don't see the need if you can just set a bIsAiming boolean

Not everything has to be overcomplicated

[raw aspen]

Best resource to blueprints

Learn

[surreal peak]

Depends on the learner. Epics Learning resources or YouTube I guess.

[dim agate]

I just hope I applied the Boolean properly. I understand how it works but it looks a bit spaghetti-like.

[surreal peak]

Just make sure you watch more than one tutorial, cause most of them have some wrong stuff

[raw aspen]

YouTube please

Any channel suggestions

[dim agate]

Matt Aspland does really basic stuff but I've found some videos instruct you how to make things that you then can't easily build off of.

[raw aspen]

Ok

[dim agate]

I followed this when I started about 2 months ago with 0 experience: https://www.youtube.com/watch?v=Xw9QEMFInYU&t=4369s&pp=ygURdW5yZWFsIGJsdWVwcmludHM%3D

[raw aspen]

Thxs

[meager ingot]

Just did this and it didnt work ):
Could anyone else help me fix this plz?

[steady night]

https://gyazo.com/3762711f29084f224e1de6895ff42898

what can i do about this "player collision instead of visibility" collision :/?

[winged zephyr]

How do I get a variable type for a specific material and relevant instances?

[frosty heron]

Show screen shoot of what you are trying to grab

[winged zephyr]

I want this material as a variable type

[frosty heron]

What's the goal here?
How are you going to use the material? You need to know if you need to grab the Material Interface or the material instance dynamic

you can just convert the variable type to material interface if you want the static material

but if you are going to change the parametres dynamically, it has to be dynamic material instance

[winged zephyr]

Aight thanks I think I understand what I gotta do 🙏

[cobalt gulch]

How do I increase falling speed while already falling?

[dim agate]

Seconded, that's a good one to know how to do.

[meager ingot]

maybe increase the actors gravity? IDK

[dim agate]

Can it just be set like any other variable?

[meager ingot]

I think

like in the movement component

[carmine palm]

any idea why this would give me inf loop? Even though the value is decreasing. (when I add the set scalar)

I have dissolve effect im adding to player

when they die

[remote meteor]

the DissolveAmount variable is not being changed in the loop though

[carmine palm]

and I want it to dissolve player from top

[remote meteor]

and WhileLoop must finish in a single frame

so you wont get the "lerping" effect you want

[carmine palm]

ohh

[remote meteor]

for tha to happen, you want to use a timer/timeline/tick

[carmine palm]

didnt realize it had to be single frame

[remote meteor]

in this particular case i suggest a timeline

[carmine palm]

so get rid of my while loop?

I havent used timeline yet lol

[remote meteor]

if you want a effect over time, while loop is not the go-to

[dim agate]

Is "cast to" the only way to make a blueprint check a variable within another blueprint?

[remote meteor]

Is Child Of

[frosty heron]

I need to know this as well 😔

[remote meteor]

but to access it, usually cast yes, or interface/get components

[frosty heron]

if the variable is already the same type you wouldn't need to cast

but if it's not and you know it's if the type u want to cast, then cast away

[dim agate]

The context here is that I have "is aiming" as a Boolean variable in my character blueprint and, in my player controller blueprint, I want to have an input event followed by a branch with an "is aiming" condition.

[remote meteor]

fall faster is just adjusting gravity scale 😆

[frosty heron]

but I will jump not as high =(, I can probably try to adjust the gravity scale when they are falling down, that's what I had in mind but it feel like a hack than being physically accurate

also kinda trying to figure out how to migitate the length of the character in the air. They slowly lose velocity before falling, but it felt a bit too long and unnatural

[carmine palm]

Got it ty

[remote meteor]

thats not exactly how you want to use a timeline

[carmine palm]

oh

learn me por favo

[remote meteor]

say if i need the timeline to do a lerp of the value from 1 to 0 in 1 second in a ease in/out manner

[timber crystal]

greets you
Quick question: why does the animation no longer work from a functioning copied opponent's blueprint? It works for him, running and everything, but after I copied the BP the animation no longer works, it simply remains in the idle state.

Of course I remade the variables and also made a new animation bp for the copied version
But why does he stay stuck in his idle pose? I don't understand

[remote meteor]

you can just do this

double click on the timeline to edit the timeline

[young meteor]

I have an actor that spawns enemies based on a data table.

Sometimes it somehow fails and nothing happens. I'm not too familiar with the Async Load Class Asset Node and soft references in general. Do you guys think this part could be what is causing the issue?

If it fails to load or something?
Feel like it should finish loading at some point though, and not stop the flow forever.

[frosty heron]

why do you need the delay at all

it should be valid when it finished loading the class asset

[young meteor]

The delay is more because I have a delay between each monster I spawn (in a tower defense).
Not so much because of Async load.

[frosty heron]

not sure if this is the problem but I don't see why u have the need to resolve the solve ref

[remote meteor]

gotta cast the UObject class to AActor class

[young meteor]

Hmm, that change might indeed help

[frosty heron]

Prob not, you might call the load function again before the previous one finished loading

[young meteor]

Can't connect it though

[remote meteor]

.

[frosty heron]

cast

[young meteor]

Not sure what this means

In particular the UObject part

[frosty heron]

lAsaka is the lord here 🤗 when it comes to soft ref

[frosty heron]

Cast the purple class to Actor class

then you can connect it to spawn actor

[remote meteor]

ideally, you wont really want to load the class this late

[lunar sleet]

https://tenor.com/view/oh-god-lord-help-me-gif-26576418

[young meteor]

Thank you for clarifying

[remote meteor]

its an unlikely situation, but what if the load takes a few seconds long, the game would have to wait for few seconds before the spawns continue

[young meteor]

true, but what is the alternative?

Somehow load all actors up front?

[remote meteor]

not all, but you can load the next one while on the current wave for example

[young meteor]

Very good point

[opal kraken]

Hi guys, I have this acotr blueprint, with this 4 static meshes component, in the event graph i want to use something that allows me to make each component rotate, i tried to use set updated component but unfortunately it makes rotate only one of the 4 components, can you help me?

[young meteor]

I can make that happen from here. Thank you. Still Async loading right? (so it can load in the background without stopping the rest of the game)

[remote meteor]

the delay node also makes the spawn non-interuptable either, just pointing out

[remote meteor]

for loading the next one, you can do async load

[lunar sleet]

always async load. You don’t want hitches

[remote meteor]

but when it time to spawn next wave

i will recommend to sync load

[lunar sleet]

Oh?

How come

[remote meteor]

its more unlikely that you can clear a wave super fast i believe

from a game balance stand point

when its time you really need it

do a sync load

it would have been already completed loading

when you already async load it from the last wave

[lunar sleet]

Oh

I get you now

[remote meteor]

its kinda like "i want it NOW"

[lunar sleet]

Mb I missed the part where they’d already async-ed it

[thin panther]

a good intermediary anyway would be to have a round cooldown. you want to give some downtime anyway so you don't get bombarded.
like a 5 seconds between waves to restock ammo, heal up etc.

[lunar sleet]

Time for player to rest and you to load your dudes

[young meteor]

Would normally agree. In my case though I spawn a mix of different enemies in a wave. So I might only spawn 1 of Actor1, and 1 second later need the new Actor2 loaded and ready to be spawned.

[remote meteor]

yeah if you have round cooldown, you can start the async load on the timer starts, and sync load (to force it finish immediately if it hasnt done) on the end of the timer

[thin panther]

the most famous example, COD zombies does this, just not obviously.
you can probably guarantee that everything will be loaded by the time the round end + cooldown is over, and if not, those enemies could just be prepended to the end of the wave.
saves you hitching the game thread

[carmine palm]

Haven't done it yet. (Being forced to play two roblox games with my 5 year old) butttt. Ty for helping me Iaska 😛

[young meteor]

Nice. So if Async already finished loading, Sync load would basically do nothing?

[remote meteor]

yeh

the assetmanager keeps track of all assets being loaded

if you ask for something that already exists, it returns it

[young meteor]

and half-way Async, would just do the rest Sync from there?

[remote meteor]

yes

[young meteor]

nitty-gritty, but nice to know

thank you. 🙏

[remote meteor]

though im not exactly sure if they fixed the default load nodes

doing a sync load would force every running async to become sync

afaik

but thats probably fine

[young meteor]

I will figure a way to load it Async a while before needed and then do a Sync right before just in case.

[remote meteor]

in that case, you gotta have 4 of those component i believe.. though not very intuitive, the rotating component isnt built to supoort multiple component updates

unless you are dealing with super high poly meshes..

i dont think loading them will take too long..?

🙏

[carmine palm]

bruh

That tmieline is so gorgeous

Thank you ❤️

[remote meteor]

techtip about timeline 😉

• always use 1 second timeline to design the curve when possible.
• then adjust the playrate of the timeline to suit duration needs. [PlayRate = TimelineLength/Duration]

[frosty heron]

@opal kraken Use timeline and set the rotation on each comp

[opal kraken]

I did it like this, the last value on the timeline is set to 360 so it makes a full rotation, it works like that

[faint pasture]

Tick -> foreach component -> update rotation

[frosty heron]

Yeah actually follow what adriel says

[faint pasture]

If you want it to spin continuously that is. If it's a temporary thing like opening a door then a timeline is fine

[frosty heron]

I don't know why I say timeline

[opal kraken]

All of this stuff is on c++ or they can be used with nodes too?

[frosty heron]

Blueprint event tick

[opal kraken]

Ah ok find it, but before i was trying to create an array of components but i couldn't

[frosty heron]

you can create an array of comps, why not

but prob not necessary here

[frosty heron]

(Delta time * Spin rate per second) + Current rotation ?

[faint pasture]

I'd use add local rotation but yeah

the amount to add is rate * deltatime

[opal kraken]

How can i add components on this array?

[faint pasture]

Make array

[frosty heron]

You can add them on construction script. reason you can't see it in editor time is , they are not constructed yet.

[faint pasture]

You probably don't even need to do that tho

[frosty heron]

Ye isn't for loop pretty taxing too in bp

wouldnt place that in event tick

[faint pasture]

nah

[frosty heron]

ahh ok

[faint pasture]

It needs to be rotated differently every frame so it has to be on tick somewhere

[frosty heron]

I mean the loop part

[faint pasture]

nah, 4 of them is nothing

if it's 4,000 then consider C++

[frosty heron]

Gotchya

[remote meteor]

do it on niagara at that point 😅

or vertex animation

[lunar sleet]

Haha nice winter/holiday cat

[frosty heron]

everyone on Christmas vibe 🐱

need my self santa hat too

[opal kraken]

It works like that, it's wrong?

[frosty heron]

0o how do you even manage to plug that

[opal kraken]

What the array or the event tick ahahahaha

[frosty heron]

Btw you need to account for delta time

If u don't account for delta time, the computer with more FPS will spin the fan faster

[remote meteor]

that is a shorthand for "For each do this"

[frosty heron]

something to discover everyday

[remote meteor]

only applicable when calling function on an object

but not default recommended since it doesnt do valid check

[frosty heron]

delta time * the spin rate per second

[opal kraken]

And then i plug it into the z rotation?

[timber crystal]

Hello friends, why don't my bullets hit? They go through the opponent.
What does the collision have to be set to?

sorry im a noob

[frosty heron]

5 degree per second sound pretty slow, might want to adjust if it's not the speed that you want

[opal kraken]

Yes i set 180 now

[frosty heron]

so full rotation in 2 seconds?

[opal kraken]

Like this?

[lunar sleet]

They both have to block each other and generate hits

[opal kraken]

yes

[midnight idol]

Is there any way I can clamp the third-person character camera so it doesn't clip through the player legs?

[frosty heron]

Yup now they are not frame dependent

[timber crystal]

ok but how can i do that xD

[lunar sleet]

I mean I gave you the answer, not sure what you’re looking for. If you don’t know where the collision settings are, they’re in the details panel when you select the mesh or collision box

[timber crystal]

yes sorry im searching it to post my settings

i posted the wrong collision settings

[zealous moth]

is there a way to lock the window size of the game?

[frosty heron]

hmmm like?

[remote meteor]

project settings -> Allow Window Resize
maybe?

[timber crystal]

its on Default my collision preset for the bullet mesh

[zealous moth]

@frosty heron @remote meteor like I want a resolution and screen size of 800x600

[remote meteor]

like FIXED and can never be changed?

[faint pasture]

make the yaw = 5 x DeltaSeconds

[zealous moth]

yup

[faint pasture]

then later yaw = Speed x DeltaSeconds

[lunar sleet]

Change it to BlockAll or custom (on both objects) and check the box that says generate hit events (iirc)

[zealous moth]

like a classic DOS game

[timber crystal]

Ok thanks a lot i go for it

[remote meteor]

yeah you want to set the resolution to 800x600 windowed using the game user settings on game startup, then in your project settings untick Allow Window Resize and maybe the maximize and minimize

[zealous moth]

sec

[frosty heron]

have u tried playing with small widnow in 2 k monitor 😄

rip 4 k monitor ppl too

they gotta squint

[remote meteor]

windows scaling to the rescue

its fine

[frosty heron]

oh I thought the resize is disabled?

[zealous moth]

well it's a VN base and it has a 2D background, if you scale it, it looks pretty bad

[remote meteor]

its not like 480x320

ideally you wouldnt want to fix the resolution like that

scalable ui is more desired

[zealous moth]

where is the game user settings class? I guess it's like game instance? make my own and load that?

[frosty heron]

It's singleton

already there , I think you can just do the get Game Setting node

[remote meteor]

though i forgot whether if you can call this as early as gameinstance init

oh, now you can

nice

[zealous moth]

what would the game instance init event be called?

[remote meteor]

you mean when?

[zealous moth]

this?

testing

[remote meteor]

yes

remember to set the game instance class in project settings too

[zealous moth]

yep done that

ah but a lot of scaling needs rework

good to know

[sour cliff]

I want to hide child bp that is inside an actor in the editor, when i click the eye icon that hides it then edit the main bp , it shows again ..

I also activated hidden in game inside the bp , wont work in the editor

I just dont wanna see it , its in the way

[frosty heron]

@sour cliff change the visible then

[sour cliff]

Wdym

Where to find that

[frosty heron]

in the details panel when you select the component

[sour cliff]

Do u mean to click the eye icon to hide it?

[frosty heron]

no

[carmine palm]

Is there a way to call a timeline in a function with its float variable it outputs?

[frosty heron]

Select the component ( the cursed child bp ) then look into the detail panel. There is visible box , you can untick it to not render

[frosty heron]

Not mean to change the inside, but what you can do is change the play rate of the timeline

btw you can't call timeline in a function, that's custom event so that's fine

[carmine palm]

yea I just need dissolve amount

I don't know how to get that var

inside function

[frosty heron]

Timeline don't work inside a function

you can;t do latent action in function

[sour cliff]

Wow thank u so much, that was annoying

[frosty heron]

Function happend in a single frame

[carmine palm]

okay so my whole event dissolve event needs to be in event graph

or whatever

[frosty heron]

if you are going to use timeline, do it in event graph

[remote meteor]

timelines are used in an event graph

you can then call functions from the update/finish event though

[carmine palm]

yea Im only using set scalar though

Was just trying to consolidate it into one thing. I'll just turn entire thing into an event lol

[frosty heron]

I would probably encapsulate everything into component for a dissolve effect

Need to dissolve an enemy? An NPC, an object?

just throw dissolve comp to it

[carmine palm]

going to

[frosty heron]

oh wait, can't have timeline in Component

[carmine palm]

really?

lmao

[frosty heron]

Yeah but there is a workaround ofc

[carmine palm]

thats fine

I have a base class for mobs

I can just add it to my base class for OnDeath

[remote meteor]

character base class is fine 🤷

[narrow pendant]

is there a way to (re)compile all BPs at once?

[frosty heron]

clicking play in editor should compile any uncompiled bp

[narrow pendant]

I've got a build error related to a struct

it goes away when I recompile that BP

[spark steppe]

<PATH TO UE>/Engine/Binaries/Linux/UE4Editor-Cmd <PATH TO PROJECTS>/<ProjectName>/<ProjectName>.uproject -run=CompileAllBlueprints

[frosty heron]

Shieeet

bp struct

[narrow pendant]

alright awesome, might try that

yes bp struct

[frosty heron]

U have to save all blueprint asset that uses it

if u hve 100 that's 100 times

[narrow pendant]

🙂

[frosty heron]

Just don't use bp struct

[narrow pendant]

fun

[frosty heron]

declare it in cpp and call it a day

[spark steppe]

ehm and also replace Linux by Windows or whatever it is for the weirdo OS

[narrow pendant]

learning C++ is on my list

[frosty heron]

U dont even have to know C++

[narrow pendant]

I'm on windows 😄

[faint pasture]

Starting with putting your structs and enums in C++ is a great way to start.

[narrow pendant]

yeah, base classes in c++ and structs (and enums too I guess!)

[faint pasture]

I work in C++ all the time but I've still never once made a C++ actor. Just components and subsystems and stuff like that.

[narrow pendant]

interesting

thanks guys

[vivid marten]

good to know.. I'll perhaps start with this for getting some C++ into my stuff

[narrow pendant]

If I remember correctly epic were saying in their advanced BP talk that you should set up your base classes in C++ so you don't need to cast to the actors to get values out of them? wouldn't that mean actors?

https://youtu.be/j6mskTgL7kU?feature=shared

[frosty heron]

casting in BP comes with overhead that loads them to memory. This can be very nasty as your project get bigger. You can end up loading the entire game in the main menu for example (like my old project 😦 )
Casting to generic class is preferable so u don't have to load the children clasas.

Casting to C++ class is free and doesn't load to memory

[narrow pendant]

alright I see

yeah I've got some very bad practice of using hard refs everywhere

I'm afraid I'm doing the same thing in my current project 😄 luckily scope is limited and I'm basically done

[frosty heron]

if you are looking to make a scaleable game that is quiet big in size, deffinitly need to learn cpp
but if your scope is prototype to practice then bp should suffice

[remote meteor]

Good Read Here!

[vivid marten]

this would likely help also for casting etc..

https://www.youtube.com/watch?v=aUG54KCP89M

[narrow pendant]

yup will check these out for sure 🙂

[plain anchor]

I asked this in #ue5-general but it might be better suited in here:

Anybody else getting a 100% reproducable crash when changing an Instanced Struct inside a struct to any other variable type? (UE 5.3.2)

[thorn agate]

I just have a question. When I test everything in unreal engine, everything works correctly, but when I export it as an exe, there is a delay on my sound effects. I use Play 2D sound for this, but it is noticeably slower than in the editor, almost 1 second. In my game I use the Event tick very often but only like 5 or 6 times in one stage at difrend BPs, but it is my first project to try everything out a bit. So my programming is not optimal but it is a very small project. So I wonder why this is and how I can solve this.

[glossy cloak]

How are you testing in the editor?

[thorn agate]

play this livel in editor viewport then evrything is oke but only if i package project for windows en test it on the exe is bad

[tepid willow]

Hello, does anyone has a quick work around for the SetTimer node? The issue that I'm facing is that calling it with the same function/event makes it reset the one that was set previously (if it was not triggered yet), making it impossible to cascade multiple calls simultaneously.

I mean, if I do this, only one (the last) event will be triggered

[glossy cloak]

What are you trying to do, exactly?

[tepid willow]

I'm trying to setup a simple enemy spawner, and the spawn queries may interfere with each other delay wise

[glossy cloak]

I'm not sure how to help with this one. Maybe it has something to do with loading up the sound effect in the packaged game?

[tepid willow]

So if I query to spawn an enemy after 15 seconds, but I query another spawn during these 15 seconds, the first query is lost

[glossy cloak]

Do you have a delay on the delegate event?

[dawn gazelle]

Use a single looping timer with 1 second interval. Keep track of how many enemies have spawned by incrementing an integer. Once you've reached the number of enemies you want spawned, you can stop the timer.

[tepid willow]

wdym? My delay is the timer

[glossy cloak]

Well any code you have on that custom event delegate should run instantly. Nothing should be preventing it from triggering once it fires the first time.

[tepid willow]

Yeah, I thought about making something like that, but it's just more complex

[dawn gazelle]

If anything it's less complex.

[glossy cloak]

Datura's method is WAY better than cascading timers. I've never seen anyone try something like that before.

[thorn agate]

i dont know what this is can it help to make stuff good ?

[tepid willow]

Alright, I'll try to do that instead

[glossy cloak]

I mean... I've never seen that error, so I'd try to fix that and see if that fixes your issue first. Might need to google what it wants you to install exactly.

Okay. I'm struggling with culling some static mesh components in a blueprint. This BP actor has 4 static meshes in it. 1 of them, the barrel, culls just fine at a certain camera distance (seen in the image without the barrel) but the arrows don't cull. They're all set up the same in their detail panels as far as I can tell. Any idea what I'm missing?

They seem to be entirely default settings other than collisions (which are the same, but custom) and materials, which are different.

[dawn gazelle]

This'll make it start from begin play, but otherwise you can just call "Start Spawner" whenever you want it to spawn the number of enemies you desire again.

[tepid willow]

It's actually not exactly what I was asking for, as the enemies are not spawning at some constant spawn rate. Queries can arrive at random time with random delay

[glossy cloak]

Are you async loading the actor class that's spawning?

[tepid willow]

Nope, it has nothing to do with memory management. The reason for such a system is not due to any technical problem, it's just a gameplay feature

[glossy cloak]

Then there's no reason an event wouldn't figure every second, even with cascading timers.

[glossy cloak]

Triggering the "Set timer by event" multiple times will reset the timer, yes.

But triggering 4 timers at once will cause all 4 of them to trigger back to back as expected.

So long as you don't call that again.

If you need to override a spawn not using a timer, then just call the spawn directly.

The spawn function*

[tepid willow]

Are you saying that all 4 of them will cause the event to be fired, i.e. it'll be fired 4 times?

[glossy cloak]

Yeah.

If you're setting 4 individual timers, they're all going to tick individually and trigger when they're up.

[dawn gazelle]

??

[glossy cloak]

Yeah. I was going to suggest a queue system as well.

But unless there's an async delay of some sort, then a queue shouldn't be necessary.

Because even if you called the function 60 times/second it should just spawn in 60 enemies in a single second.

Shouldn't be a problem.

[tepid willow]

I would imagine it to do it that way, but the source code tells me otherwise:

FTimerHandle UKismetSystemLibrary::K2_SetTimerDelegate(FTimerDynamicDelegate Delegate, float Time, bool bLooping, float InitialStartDelay, float InitialStartDelayVariance)
{
    FTimerHandle Handle;
    if (Delegate.IsBound())
    {
        const UWorld* const World = GEngine->GetWorldFromContextObject(Delegate.GetUObject(), EGetWorldErrorMode::LogAndReturnNull);
        if(World)
        {
            InitialStartDelay += FMath::RandRange(-InitialStartDelayVariance, InitialStartDelayVariance);
            if (Time <= 0.f || (Time + InitialStartDelay) < 0.f)
            {
                            // removed
            }

            FTimerManager& TimerManager = World->GetTimerManager();

            // It uses the same handle for exactly that delegate to set up the timer
            Handle = TimerManager.K2_FindDynamicTimerHandle(Delegate);
            TimerManager.SetTimer(Handle, Delegate, Time, bLooping, (Time + InitialStartDelay));
        }
    }
    else
    {
            // removed
    }

    return Handle;
}

[glossy cloak]

What part of the source code is telling you that having multiple timers will only trigger one of them?

[tepid willow]

This gets the timer handle associated with that delegate
TimerManager.K2_FindDynamicTimerHandle(Delegate);

This associates a new timer with the timer handle for that delegate, overriding the existing one
TimerManager.SetTimer(Handle, Delegate, Time, bLooping, (Time + InitialStartDelay));

[tepid willow]

What does call the IncomingQuery?

[glossy cloak]

Huh.

I just tested it and I think I see the problem.

[dawn gazelle]

Whatever it is that's creating the query you're talking about.

[tepid willow]

Yeah, calling this makes it print one single hello after 4 seconds

[glossy cloak]

I think the timer is dependent on the delegate. So each timer attached to the same delegate is retriggering after each "set timer" node.

Meaning, yeah. You're right. Each timer is treated as the same timer because they share a delegate.

And the source code confirms that by saying that each timer handle is paired to that delegate.

[tepid willow]

Uhh, in my case I have a spawn point that has a Spawn event, calling which makes it set a timer on its own, so that the caller doesn't have to bother about it. The owner has only to give it a delay time

[glossy cloak]

Interesting find, and good to know, but this is still a very odd way to handle a spawning system and I wouldn't recommend wasting time trying to find a way around this. I'd use a single timer that loops and use a queue or some other way to determine when to spawn the enemy.

[tepid willow]

One way around I found is creating a new object handling each timer, but that's very lame 😄

[glossy cloak]

So, you have an overlap event that sets a timer and spawns an enemy after x seconds?

And you want it to be triggerable multiple times?

[dawn gazelle]

What is it you're attempting to query every second?

This sounds like what you really need is a BP_Enemy blueprint that has an event dispatcher that you can have your spawner bind to. You'd call that event dispatcher when you want your spawner to do whatever it is you want it to do (like if the enemies dies).

[tepid willow]

Essentially I have cycles in my game. When a new cycle starts, the spawn point gets an event, and upon that it might want to spawn like 5 enemies, but everyone might be spawned after some delay, for instance the first one is spawned after 5 seconds, the second one after 10, and so on. Every timer is set up the same frame. It's done relatively rarely though, so there might be up to 5 simultaneous queries at most

[tepid willow]

uh, I don't really like this solution. There would be invisible enemies waiting for their time to spawn, seems error prone or something

[glossy cloak]

You're misunderstanding.

[glossy cloak]

So how do you determine the delay times?

[tepid willow]

The spawn point knows how many enemies it wants to spawn on a particular cycle with a certain delay, it's just a prior to play time setup, in C++ terms it's kind of a TMap<Cycle, TArray<TPair<EnemyClass, Delay>>>

[dawn gazelle]

Which sounds like a continual spawn rate based on the enemy class.

Oh a TMap of a TArray...

[glossy cloak]

If it's map, then you'll want to trigger a single timer that triggers a spawn. After the spawn, check the keys in the timer and find the next delay. Start the timer again with that next delay. If no additional keys are in the map, then do nothing.

[dawn gazelle]

So the spawner would be responsible for more than 1 type of enemy at a time, hence why you want multiple timers as they could be spawning at different rates?

[glossy cloak]

If you want to trigger a second timer with a new spawn delay you could try making a "spawnTimerComponent" that you create and attach to the spawner any time you want, which can then asynchronously be ticking down and trigger the spawn function when eit's finished, then remove itself from the spawner.

[tepid willow]

Just for the quick explanation sake 😄

[glossy cloak]

Or if you don't need asynchronous timers, then I'd suggest just creating a spawn queue you add new spawns to with a custom delay. Then it'll just keep looping through that array/map as things get added to it. And if there's nothing in the map, you could either pause the timer, clear it, or just let it keep looping, doing nothing.

You could also just use delay.

[tepid willow]

It works kind of the same way

[glossy cloak]

Instead of a timer.

Delay won't reset unless you use a retriggerable delay.

[glossy cloak]

Oh right.

[frosty heron]

How about using Component?

A component that spawn a timer

Calling the timer again, indeed reset the timer.
I get around this by spawning a component. Other people use UObject

pick your poison I guess

[tepid willow]

Maybe I got you wrong, but wouldn't I need to keep track of the current spawning entry? Also, they would need to be sorted in descending order

[frosty heron]

Delay is not the answer

or retrigerable delay

[tepid willow]

UObject seems to be the simplest

Since I only have at most like 5 timers at a time, it's not going to hurt anything

[frosty heron]

Make a UObject that execute a timer in it. Dispatch an event when it's finished the countdown

When you want to make a timer just construct the Uobject

[tepid willow]

Yeah, made it like that

[dawn gazelle]

I mean, if you wanted to keep it contained, and you know that you can have at most 5 timers running on one spawner, then why not just code 5 separate delgates anyway?

Use them as needed.

[tepid willow]

I'm not sure whether DelayQueries is even rquired. I thought that they might be GCed or something

[tepid willow]

uh, it looks ugly 😛

[glossy cloak]

Just make a spawn component or a uobject. @tepid willow

[kind moth]

hey can someone help me out? tell me why neither of these work. I'm trying to make it so it prints when you click a specific component in the blueprint. Or so that it outputs the component clicked. Thank you!

[valid tendon]

hey guess im trying to make an interaction system, and its not working. here is a screen shot, and i am using the top down project.

its letting me click on things, its printing the name of the static mesh in the BP in the scene i am trying to click though, not the BP its self. i think that is why the cast isn't working

[glossy cloak]

First of all, are you seeing your line trace debug lines? It seems like it's just tracing from 300uu above your mouse and tracing down to the mouse, which.... is odd? Why not just use "Get hit result under cursor"?

[dawn gazelle]

Just needs a few tweaks so it reads from your data how long you want the timer to be 😛

Each of those delegates could easily call into a function that performs the actual spawning that you could get the data for from your array.

[valid tendon]

i fixed, i changed the type to something elese and that fixed it, sorry.

[glossy cloak]

I'm guessing that that second cast node is failing for you. Probably because you're casting to see if the actor is a bpi interactable, but what you're probably meaning to do is check if it's implementing that interface. If I were you i'd just remove that second cast and call the BPI Interact directly. There's no reason to cast when using an interface. If it can't interact because it doesn't have the interface, it just won't do anything.

[valid tendon]

i had it sending a message first and that didnt work, its bc i had it lookingfor world Static, so it was reading the mesh, instead of the blueprint. but ill b changing that back to a send message now too to save memory

[glossy cloak]

Ah. I see. Yeah. I typically like to make an "Interactable" object type when I set up an interaction system, that way I can trace for it without hitting every other object in the game world.

[solemn basin]

I was told how to Cast from my Hud Widget to my PlayerState. How do I cast from my PlayerState to my HUD Widget?

[dawn gazelle]

You need a reference to your HUD widget, you don't necessarily need to cast.

[solemn basin]

I don't have a reference to my HUD widget in my PlayerState.

[dawn gazelle]

Then it won't be easy to get into it from the playerstate.

You could work the opposite way and have an event dispatcher in your playerstate and call it where you need it to do something, then in your widget you can bind to it on construct so that it can do what you need when it gets called.

[solemn basin]

I got into the PlayerState from my HUD widget without a reference to the PlayerState?

[dawn gazelle]

You did have a reference. You had the Owning Player which contains the "Player State" reference.

[solemn basin]

does the Owning Player have a reference to that HUD widget?

[dawn gazelle]

Get Owning Player in the widget returns the player controller that the widget was created for. If you happen to have created your widget in your player controller, then it could if you had created the reference in your player controller class, and you would need to cast the Owning Player to your custom player controller class to get that stored reference.

Same thing in your playerstate - you could technically get the owner of the playerstate which should be a player controller reference... You could then cast to your custom player controller class and retrieve the reference if you had created it.

[frail oar]

I changed the game mode blueprint in the project settings but it's still calling the old one. where is the game mode blueprint really set?

[solemn basin]

this is my custom Controller, is that what you are talking about?

[frail oar]

if i press delete on the old game mode blueprint it says "the level" is using it. but it's not in the level's outliner

[dawn gazelle]

Yep. The return value from the Create W HUD Widget node is the reference to the widget.

You can promote that to a variable.

[versed sun]

in World Settings

[solemn basin]

ok, I promoted it to a variable

[flat raft]

How would I go about setting the player controller via bp in the gamemode?

[frail oar]

i named the output variable of a function the same as the function and the output disappeared in the properties panel but was still on the node. i had to recreate the function. did i trip over something

the function was called "GetActorsOnTeam" and the output was called "ActorsOnTeam"

[faint pasture]

Id make it data driven

OK IT"S TIME TO SPAWN SOMETHING MAYBE
checks notes
1 SKELETON COMING RIGHT UP

notes = array of SpawnOrders which encode the thing to spawn, and the spawn rules or intervals

Timer -> SpawnThingsMaybe

SpawnThingsMaybe -> for each SpawnOrder -> should we spawn something?

[dawn gazelle]

The game mode has a variable called PlayerControllerClass. If that's accessible in blueprints, that's probably how you'd be able to set it.

[flat raft]

i searched for that

no joy

[faint pasture]

you would just fill it out with stuff like
Skeleton, 3-5, 10s
Ogre, 1, 30s
BossDragon, 1, 90s
You'd also want some variable in the structure to keep track of the last time the spawn happened.

[frail oar]

maybe i'm just new to blueprint but i'm getting all sorts of weird behavior. local variable causes compile error because it claims it's "not visible to blueprint" but then when i delete and remake it, it decides it's fine

it won't let me name the local variable "Result"

maybe that's because it's the same as the name of the output variable?

[trim matrix]

These kind of odd behaviors arnt abnormal in blueprint. Things break all the time or become corrupted. When facing these ridiculous errors, its best to do as you said. Just copy paste remake.

[frail oar]

rip

[solemn basin]

What do I have to do to Cast to the Widget Card Hand? I just want to set a variable through a cast.

[jolly cipher]

How do we restore a broken Character BP?
I see the character BP backups in my Autosave folder and copied them over to my content folder but not seeing anything,
Not seeing any options to restore either, what am I suppose to do?

[kind moth]

Hi! is there any kind of event for component end overlap with another component inside the same blueprint? (trying to use a sphere and sphere collision, when the sphere goes outside the sphere collision I want the event to activate)

[dawn gazelle]

A reference to the actual W_CardHand widget that you want to modify. Again, casting may not be necessary.

#blueprint message

[crystal crown]

Can't figure out how to ragdoll from vehicle collision. If i just run into it with my character it will ragdoll but not if i drive the vehicle into the character.

[jolly cipher]

So weird cause all my parent BP seem fine, just seems to be my child BP that has most of the logic

🥲

[solemn basin]

would you mind walking me through it? Communicating between blueprints is my weak point right now. I understand Inheritance but I don't know what the game structure is.

[frosty heron]

https://www.youtube.com/watch?v=6IOgkWv1lEY&t=261s&ab_channel=MathewWadstein

[faint pasture]

You would have saved a ref to it when you made the widget to begin with.

Or you can have the widget bind to some dispatcher on whatever holds the actual hand data

OnHandUpdated or whatever

All of the data representing your deck, hand, graveyard, etc, should live in one object, that's basically the state of a player. A PlayerState if you will.
When the widget gets created, it can find that PlayerState, and bind some event it has to a dispatcher on the PlayerState. That dispatcher is how the PlayerState notifies the widget that it should update.

Widget:
Whattup world, can I get a PlayerState of type MyPlayerState? Thanks. Hey MyPlayerState, lemme know if anything changes, k? (bind an event to MyPlayerState.OnHandChanged)

YourPlayerState:
??? -> the cards in the hand changed -> trigger OnHandChanged

[small ice]

Hey, quick question: does anyone know why the arithmetic for rotators isn't exposed to blueprints? You can do addition and subtraction between vectors, but not between rotators, even though FRotator has the + and - symbols overridden. I went into KismetMathLibrary.h and added blueprint-exposed operations for adding and subtracting rotators, and they work perfectly fine. Is there any reason this isn't implemented into Unreal already?

[dawn gazelle]

When you're creating blueprints, you're defining what something can be.
The engine spawns instances of those blueprints when you're spawning actors or creating widgets (not to be confused with making a widget blueprint, but using the "Create Widget" node that spawns the instance), and the engine uses the blueprint as a template for what that thing contains. The spawned instances are the things that you need references to in order to communicate between blueprints - and when you're spawning or creating, the return value is the reference to that thing.

In some instances, like creating a user widget that contains another user widget, it will automatically create the instance and should be accessible as a variable on the parent widget.

[faint pasture]

Combine and delta

[small ice]

Ahhhhh

[frail oar]

are there more advanced shortcuts for wiring in blueprints? things like insert node along an execution wire, place a reroute node but continue to lay down the wire

i would i could drag out, lay down a reroute node, continue dragging, another reroute node, snap it to where it goes

[lunar sleet]

Not out of the box, but you can double click on the wire to create a reroute node and move it into place

[hushed ferry]

while dragging from a node, u can press R to place a reroute node

[frail oar]

https://tenor.com/view/summer-break-gif-6269967204638541467

[lunar sleet]

Yeah forgot about that one

[dawn gazelle]

If I remember right, if you drag out from an execution pin that's already connected, you'll be prompted for a new node and it'll insert it between the connections.

[lunar sleet]

Yeah you can insert in already placed execution paths

What I meant was you can’t automatically connect each new node when you first place it, unless you use some plugin

And even then you have to do it afterwards

[frail oar]

oh nice i think it only didn't work last time because i was trying to do that for a sequence of two nodes rather than just one

[coarse grove]

Hello, maybe someone can help me. I did a projectile base class, but the projectile is hitting other projectiles, other enemies. I wanted to avoid this, so I created this function but its not working to make my projectile ignore some classes.

[naive edge]

maybe you should try creating your own collision channels and profiles.

ive added a text render component to a bp. i tried adding a new font but it doesnt work. i noted that most fonts don't work except one which uses distance fields. is there some docs on how to make a font work ?

[meager latch]

Guys I need help with casting to a widget to get the array the widget is building. Can someone help me encapsulate this widget?

[frosty heron]

@meager latch https://www.youtube.com/watch?v=6IOgkWv1lEY&t=261s&ab_channel=MathewWadstein

[craggy flicker]

Wow, color me surprised but ChatGPT got better at reading screenshot snippets of blueprint code. Even helped me solve an issue with raycast prediction today

GPT 4 btw, the paid version. Haven't tested it out on the unpaid version

[hushed ferry]

does the unpaid version even have support for pics etc? thought that was just a gpt4 thing

[frail oar]

am i crazy or is unreal kinda crashy too? like i only just started using it but already a few crashes?

[craggy flicker]

ah you're right forgot the og doesnt have support

[hushed ferry]

could be user error, could be engine, i had have the engine crash by just creating a new c++ class

[frail oar]

i mean i'm sure i am making a lot of errors

[hushed ferry]

dont forget to save

😄

[craggy flicker]

I know I've received more errors messing around in UE 5 from Source

but the regular version had errors that were entirely due to my code lol

[river schooner]

5$ and I fix it

[craggy flicker]

https://www.youtube.com/watch?v=6IOgkWv1lEY&t=261s&ab_channel=MathewWadstein

Correct me if I'm wrong, but I believe you can just use events right

[river schooner]

the guys that we are answering is probably just starting out with unreal, bro didnt understand that the pin wasn't connected and there was an error

[solemn basin]

I understood that. I just didn't connect anything because I'm not sure how to get the reference to the widget I want.

[river schooner]

from previous code or reference

[solemn basin]

I don't know what you're asking.

[river schooner]

in the pin, you should put a reference to your widget from previous code

[solemn basin]

Yup, my issue is getting that reference.

[solemn basin]

I think i understand what you mean though. Send a reference to the HUD when did the cast to BP_PlayerState.

[river schooner]

yea

[bleak mica]

hi, for my game i need to load hundreds of static and some skeletal meshes at once(a giant robot with lots of parts), in my code it dynamically calls the parts in a certain order to assemble the robot. this functions and works, however, for like a split second upon activating this code logic it freezes/hangs (see vid). could just be from the sheer number of items being called, but after some research, i believe this can be fixed by using async load (correct me if im wrong please). but where in my chain of getting my parts should i call this and where should i create the soft references for the meshes.

i have code that converts my database info into static and skeletal meshes picture "A" - (i think i should make the soft references here instead of the hard references)
i have code that spawns the parts into the scene picture "B" - (i think i should be calling async load here)
and i have code that attaches them to the correct locations picture "C" - (this is probably ok and doesnt need to change)

or will async not fix this and it just has to be

thanks for any input.

[ornate trail]

using access property how could I either get player controller > is input key down or the enhanced input player subsystem ?

trying to add something to lyra in the same thread-safe fashion

[wild moat]

anyone know how the wrap node works in blender? i think it's different than unreals wrap/2/3/4 node

[lunar sleet]

Yes you should async load heavy stuff so that it doesn’t freeze your game

[meager latch]

im having an issue with casting to a widget that is creating an array of widgets

I want ot be able to get that array on a button in another widget

so here i create a card with a button on my main hud, that card is made on a widget called my hand, then that card has a button in its widget that i want to be able to press so that it does a function and destroys itself. in order to do that i have to be able to remove it from the array in the hand widget

[lunar sleet]

Show code

[bleak mica]

thanks, do the locations i mentioned seem like the correct place to implement the async codes. will take a good 4-5hrs to update my code references once i change them. so want to make sure its the correct thing to do

[faint pasture]

wheres the cast?

[meager latch]

there isnt right now im thinking why cant i just use another bpi to remove the child

here i use a bpi to create the child widget card and add it to an array

[faint pasture]

is it an interface because lots of other widgets might want to respond to AddCard?

[meager latch]

cant i just use a bpi on my card button and when i click my button it will activate the remove card event?

[meager latch]

no only one button will do it but its just based off a tutorial online

thats how he does it

[faint pasture]

Where does the card data actually live?

which object contains all the cards, the hand, deck, discard, all that

[meager latch]

the card hud

like this. The add card button is here and here the card hand is also where they spawn in

Im not a ui expert so im confused as to how to get it all to communicate

[bleak mica]

on the event remove card bpi you need to add an input for the card reference

[meager latch]

but then what will be my target

it has to be the card hand widget right because that is where I am ussing the event

so then i still need to cast to the hud?

[lunar sleet]

Sure, what you described sounds right, tho I don’t really understand why it would take you 5h to update some code

[bleak mica]

i have to update structures that are nested quite a bit, and everytime ive changed something before every single structure had to update or it wouldnt work

[lunar sleet]

BP structs?

[bleak mica]

yes

[lunar sleet]

They are extremely susceptible to breaking when you make changes to them, use cpp structs instead

[frosty heron]

Updating bp struct is a sure way to break it

[meager latch]

is communicating between widgets the same as with casting?

[faint pasture]

you can call that on whatever the equivelent of Outer or Parent is for widgets

casting and communicating are not the same thing

[bleak mica]

yeah i remember reading that somewhere, when i get some time ill go and look into how to do that. my project is mainly bp and wasnt sure if the cpp version could blend/ be used in conjunction with my bps

[faint pasture]

A mostly BP project with structs all jammed into 1 header is legit

It's a good jumping-off point for diving into C++ anyway.
Structs
Function library
Component or Subsystem

That's the order I did things in

[bleak mica]

thanks for the info, i always knew cpp would be better at doing things but been a while since i coded and bps looked like it could work and so far has been, but yeah things like this are the reason to start switching before i get to deep in.

[flat raft]

Hiya! I have 2 maps. I know I can use OpenLevel, but then i see some popping as the level isn't fully loaded. How would I go about waiting till the level is ready, then spawn my character there.

2 separate maps, not sublevels

Load Stream Level doesn't seem to work

[lunar sleet]

Level streaming or using a transition map would prly be your options

[flat raft]

I tried level streaming, doesn't seem to work for 2 separate maps.

what's a transition map ?

Is there something like Level Stream, but for OpenLevel? umm... is there a IsLevelLoaded node?

i think Open Level is all I have...

is there a way to tell if the level is fully loaded ?

[low basalt]

Hi, Sorry for asking here. If anyone know how a thing that might solve the camera going out of the road, i would really appreciate it. The mesh is set to block camera but camera still goes out on certain car position. Thank you

[lunar sleet]

Something you can use as a loading area like Assassin’s Creed did

[flat raft]

yea, but i still don't have a way of knowing if the level is done loading

any tips for that?

[lunar sleet]

Prly a loading screen implementation

See here: https://dev.epicgames.com/community/learning/talks-and-demos/db7/async-loading-screens-and-transition-levels-unreal-fest-europe-2019-unreal-engine and I believe Lyra also has one you can appropriate

[flat raft]

watching that now

[frosty heron]

Slate loading screen is repulsive to me

You can async level asset. Once it's ready u know the level is loaded. That's sort of what I do

Doing open level will load it instantly since it's ready

[flat raft]

i shall try..

[frosty heron]

What r u trying to do anyway

Hard open a level?

If u want multiple levels in a level your only option is sub level isn't it?

[flat raft]

Asyn load asset can load a level... that's something

[flat raft]

well, now I have a main menu map, and then I click a button and I want it to load and open my game level.

I used OpenLevel, but I see fast pops. Tells me level ain't loaded fully.

so I was looking for a Load..thing

[frosty heron]

0o

https://m.youtube.com/watch?v=GwCD2WQ7-4U&t=8s&pp=ygUQQXN5bmMgaXBlbiBsZXZlbA%3D%3D

Well this is what I followed

Not sure if there is bp node for it. I think there is?

[flat raft]

doesn't seem to be anything to load a map, and then tell me that the map is ready.

Cool, checking now...

[frosty heron]

Just beware that you will end up loading 2 maps. Unreal need to be in a level when you want to load another level. This is why there is a transition map.

If your game is small then don't matter. Otherwise, load to transition map first then async load the map you want to open. Once done u can open level the map

[flat raft]

I dont see any thing like that in bp, but i can just copy his cpp

[frosty heron]

Ye it's only a few lines afaik

I display loading screen, async load level. Then hard travel once the level is loaded

[flat raft]

yea, I'll try that! Thanks! It doesn't take long to long, i just see the popping. level has some megascan stuff so it's big

just a test level to learn menus

[remote meteor]

you can modify CommonLoadingScreen from Lyra to accept a normal user widget as a loading screen btw

[frosty heron]

I tried reading the Loading screen bit, couldn't comprehend most of it 😭 .
One thing that I followed is making the widget TSharedPtr and that allow the widget to survive hard travel

was told that it's a pretty bad idea, but I haven't crash soo far

[remote meteor]

you want to save both the UUserWidget and SWidget

UMG always comes in 2 part

one thing is within this widget

remember not to have any outside reference that would be deleted though

[frosty heron]

I see! Thanks for the heads up

[remote meteor]

the original implementation has a TSharedPtr to the loading screen, it created one based on your project settings when you show loading screen, you just need to add your own before that

[flat raft]

looks like Async Load Asset, with the Level Selected as the thing to load worked

@frosty heron Thanks for the tip!

[ionic cypress]

Anyone knows how to change the post process settings in persona editor by anim notify?
I know how to change it in the preview scene settings but I'd like to do it by the notify. Thanks!

[frosty heron]

What's persona editor?

[ionic cypress]

It is the editor for you to play with montage/sequencer and etc.

There're settings for the preview scene and one is post processing.

[frosty heron]

if you have it keyframed in the sequencer imo it will override w/e you have anyway

so even if u changed the value with anim notify the value in sequencer will take over

[ionic cypress]

I'm not really working with sequencer. The case is I'm sure I can make it work in runtime by changing the settings for the player camera, but in the persona editor preview scene, I'd like to do it with the same notify as well instead of manually set it in the preview scene settings.

[frosty heron]

k, so what's stopping you right now?

you can change the post process setting by getting a ref to it and set members in the post processing setting

[frail oar]

i added a watch but it just says "not in scope". why isn't it showing the watch value?

i can see the exec lines that depend on that data pulsing

[remote meteor]

bp watch doesnt work within a function, thats one

[ionic cypress]

Yeah, but I want to make it happen in the notify like if in this editor, I wish to change the post process settings there but runtime to change the player camera settings. Not sure if it is clear enough...

[frosty heron]

I'm not sure what you mean sorry, maybe screen shoots will paint a better picture

[ionic cypress]

like with this notify, I'd like to change the post process values in the preview scene settings.

[remote meteor]

now that is a name i havent heard in ages...

[lunar sleet]

If it’s a function, try print string if your use case allows

[remote meteor]

the animation editor/preview is called "Persona"

[frail oar]

yea it's in a function. what a weird limitation

[frosty heron]

can you show what you mean by preview scene setting

[remote meteor]

the preview scene setting is just for preview, you don really change it with anything else

[lunar sleet]

You can always move it to an event, at least temporarily

Functions usually fire in one tick, so that may be why

[ionic cypress]

something like this on the right side of this editor UI layout.

[ionic cypress]

Hmmm, okay. It probably will be a little incovinience for the game designer though.

[frail oar]

is there anything else about debugging that doesn't work in functions

[frosty heron]

I never know you can drop a post process in montage

[ionic cypress]

That's the notify I created😅 To change the post process settings.

[frosty heron]

as long you have reference to the post process setting, just set the members?

On Anim Notify state begin maybe

[ionic cypress]

The problem is I don't know how to ref the settings for this scene preview ones.

I know just ref the player camera one in runtime.

[frosty heron]

have you tried doing it on the anim notify state?

[ionic cypress]

I don't have any direction for getting this preview settings. Where I can ref it?

[frosty heron]

I thought it's something that you created, but now I think I get to piece what this is all about

pretty sure the PP and lighting setting is only for the preview scene

not sure what's that gonna do anyway on top of u prob can't get a ref to it (at least in the bp world)

[ionic cypress]

Yeah, but as long as it is in the editor world, you must can get it somewhere. I wonder how...

[frosty heron]

I don't think it's in Epic to do list to expose preview stuff to bp users

but not gonna pretend like I know, cuz I don't

[ionic cypress]

Thank you all the same. I wonder if one some knows probably could save the time, but it seems not that obvious. Appreciated your time!

[keen widget]

how to select multiple vars and move them to the same category ? why i need to do that 1by1?

[frosty heron]

Dayum

[remote meteor]

gotta do that one by one, but why not an array of struct to group them together 😅

[keen widget]

i have alot of structures in my project already starting to lose understanding of what is what,
i dont need anouther one to the pile just to store not important"buffer" vars😄
, i hope they will add that ability to select all later

[thorny hatch]

Now that’s spaghetti

[keen widget]

already fixed it

[thorny hatch]

Ok but is it still spaghetti

[thorny hatch]

Better

[onyx vale]

Hey everyone! I wanted to share a bug I solved and to get your thoughts on it. TL;DR: OnComponentEndOverlap was called before OnComponentBeginOverlap.

I have a wall jump mechanic in my game. The player character has a small capsule collider that detects when you're up against a wall. The wall detector's collision is set to OverlapAll. The wall detector sets a boolean true or false on begin overlap and on end overlap, respectively.

There are enemies who shoot projectiles at the player. When the projectile hits, it calls its own DestroyActor.

When a projectile hit the player head on, going through the player's wall detector, the wall detector's OnComponentEndOverlap would be called before its OnComponentBeginOverlap. This means that the boolean would be left on true, allowing the player to wall jump without a wall.

My immediate solution was to call DelayUntilNextTick before the projectile's DestroyActor. My other option was using a different collision channels for wall jumping, hitting the player, etc., which I might do anyway.

Any insights?

[steady night]

Hey This is from a Parent class

and this is called from a Child class of that parent

the 1,2 prints

not the 3 ???

[spark steppe]

rightclick the EmergeBoss_Event and click add call to parent node

the parent method will only be called if you don't override the event or if you add said parent call

[steady night]

already tried that

[spark steppe]

then you did something wrong

[steady night]

this is litteraly everything

and i dont have to call parent node if the delegate is empty

right

[spark steppe]

wrong (probably)

[steady night]

since its fiering a bland event just an event

well this is done the same way without call

and it works

since the "event death child" from parent is empty

[spark steppe]

??

[steady night]

yeah

[spark steppe]

idk how this is related

i don't see a parent call in your first 2 screenshots

[steady night]

exactly

[spark steppe]

so you want it to only print 1,2?

[steady night]

no

1,2,3

its structured the same way

[spark steppe]

it's not

[onyx vale]

From what @steady night said, it's the opposite. It's only printing 1,2 and not 3. So only the parent event is called.

[steady night]

yeah and this is what i mean whit the death

its called the same way

but that works..

without a call from parent since its empty

[spark steppe]

stay with one method please instead of confusing with another "example"

[steady night]

yeye was bad timing

hm yeah so any other ideas :/

[spark steppe]

no, since you don't even do what i said (which is the solution)

[steady night]

already tried it.. as i said dont work

[spark steppe]

then you screwed up somewhere else

[steady night]

it is a child of a child 3rd in order

could that be the issue

[spark steppe]

of course

if the other (parent) child overrides the event and does nothing

[onyx vale]

you need to call parent every time, yes

[steady night]

y that dident help either..

whattahell

[spark steppe]

recompile all blueprints, parent first, then 1st child, then 2nd child

[steady night]

ok so this is main parent

first child

last child

everything looks right right ?

[woven shore]

why does it spawn more than one item?

[surreal peak]

Maybe cause you call that more than once?

Or is this Multiplayer and you call it maybe on Server and Client?

Any more info would be needed. The code itself shouldn't spawn more than one item.

[stark patio]

Has anyone else gotten random infinite loop detected errors on random nodes. I sometimes get random infinite loop detected error on a random timeline node, the weird part is that no other actor ever interact with it and the error persists even if the node isn’t connected to anything at all, if I delete the node it just chooses another node and does the same thing.

[rose kettle]

Hi fellas, is there any way to make camera shakes affect cameras forward vector? I want them to mess up the players movement-

[remote meteor]

spawn transform needs a world transform, you are giving it a relative transform, multiple spawn point would probably just spawn in the same place.

[untold fossil]

Hello. I'm encountering a really strange issue. I'm using a multiline trace to detect several objects that are behind each other. This has (for as far as I remember) always worked for me. But all of a sudden the line trace stops tracing after the first block. 🤔

I'm breaking my head trying to figure out what could possibly cause this

When the multiline trace hits the first object in it's path, everything behind it becomes green (kinda like how a normal linetrace works)

What on God's green Earth could cause this?

Now, I am tracing box collisions. Could this be it? That multiline trace doesn't work with multile box collision components or something?

[dark drum]

A line trace will stop when it hits something that blocks it. If you're using the visibility channel, this is most likely why. If it passed through anything that was set to overlap, it should pick them up as well but stops when it hits something that's set to block.

[untold fossil]

Ok yeah I just found a thread that showed how it indeed doesn't work with a channel. However, when you use a multi linetrace that checks for objects it does work. Just tried it and indeed it works. But why is that?

What's the logic behind that?

[surreal peak]

Relatively sure both Trace Methods use the same logic deep down

[dark drum]

I don't know for sure but from my understanding, trace channels and object channels are a little different. Object channels reflect how it should respond to other objects of the specific channel. As a line trace isn't an object, it wouldn't get blocked.

The trace channels on the other hand are specific to the line trace so if you perform a trace set to visibility, it'll adhere to the visibility trace channel settings which for most things is block.

[surreal peak]

I think the reason it "works" for object but not for trace is probably due to the Object channel not being blocked

In general, Multi Traces stop on the first Blocking Hit

They use the same method

[untold fossil]

Yeah, tracing for objects has quite weird behaviour tbh. For example the box collisions that I'm tracing for are set to a custom object channel I made. Inside the component collision settings they literally ignore EVERYTHING though. And yet, still the trace for objects can detect them. Really weird. But it works and it's kinda cool that it ignores everything else, because that is exactly what I need. 😅

[surreal peak]

If you want the Line Trace per Trace Channel to work, simply make sure the thing you are tracing isn't blocking the Trace Channel ¯_(ツ)_/¯

[untold fossil]

Yeah setting to overlap would probably have worked too I guess

But the object channel works too, so think I'll just leave it at that

[surreal peak]

To be fair, tracing for Object vs tracing for Trace Channel, is kinda different

[untold fossil]

Is there a performance difference?

[surreal peak]

No, but the usecase.

[dark drum]

probally not.

[untold fossil]

Ok

[surreal peak]

If you only want to trace for a specific set of objects, then object is fine

If you don't care about the object type and you need a "trace channel", then that is better

There is a logical diff between the two

[untold fossil]

Yeah that's actually what I need. I just want to trace for building sockets which are box collision components

So I guess only tracing for those specific objects is the best approach

[surreal peak]

E.g. if you have a Bullet Object Type and a Bullet Trace Channel, then tracing for Bullet Object would give you only Objects that are Bullets (per Collision).
If you trace for Bullet Trace Channel, you would get everything that blocks a Bullet Trace.

So in theory, it's relatively locked what you want to use in your trace based on what you want to trace for. It's not reaaaaally interchangeable

[untold fossil]

Yeah for my damage raycasts (for my weapons) I use a damage trace channel because I want to detect everything and then check if they implement a damage interface.

Thanks for help! 🙂

[untold rain]

my ai move to node doesnt actually return the on success execution! i tried printing a string on success but it doesnt after reaching the player! Dont know how this node works actually, can someone please help me on this?

[dark drum]

I believe it never completes unless stop on overlap is ticked.

[steady night]

omg it happend Again 😮

https://gyazo.com/354f623c61b2da41714d38097be9fef4

pls help just suddenly the "mesh breakes" for some reson