blueprint

[old forge]

Hi Guys! I am making a VR Game with the Oculus Quest 3 controller grip button as my input action. Currently, when I press the grip button, it activates all of my dialogue at the same time. I suspect the button is very sensitive and triggers each iteration really fast. How can I make each step wait half a second before accepting another input/iteration?

[dark drum]

Triggered on the IA will trigger most ticks. You might need to use Started which would make it only trigger once. Alternatively, you can look at the different trigger modifers you can add to an input action in the input context mapping.

[old forge]

sorry, im new, whats Started?

@dark drum

[dark drum]

click the little down arrow on your input action event node

[old forge]

i seeeee

gna compile and run now

[lofty rapids]

cache your array before plugging it into the foreach, after you get the actors promote to variable and plug the variable in instead. much better on performance.

[old forge]

how do i do that lol

[lofty rapids]

it does do it really fast, perhaps a delay on the talk, or even a timer

[silent drift]

That is the reason I haven't really dipped into it either.

[remote meteor]

you might want to change the trigger mode to pressed instead, if you want it to only trigger once

[lofty rapids]

on overlapping actors comming out of get overlapping actors, right click and do promote to variable, name it something, then plug it into the execution (white lines) before the foreach, then drag from that into the foreach instead of using get overlapping actors directly

because foreach element that will run so it's a pain in the ass

it doesn't fix your problem, it's just something i learned that really helps with looping

[limber parcel]

i mean it does have some benefits like the integrated cooldowns etc even in a bp only project

[old forge]

this fixed it

@dark drum How do I make it so the user input isn't valid until the talk audio has finished playing

[limber parcel]

but on the other hand, it also makes things more complicated to set up

[dark drum]

You could remove the ICM that has the talk input action in it when the conversation starts and then add it back after the conversaion has finished.

Why Epic do this to me. 😭

[old forge]

sorry, how do i do that?

im very new

[lofty rapids]

i use booleans all over the place for stuff like that

[old forge]

@dark drum @lofty rapids this is my attempt, but it doesnt seem to work

i can still spam the input button and it will replay the dialogue audio

[lofty rapids]

so your calling talk on all overlapping actors that implement that interface ?

[old forge]

yea

theres only one actor

[lofty rapids]

your enabling it right after you call the talk which is most likely not after the dialogue is complete

[old forge]

theres me, VRPawn, and the NPC Jameson

[old forge]

how do I get the Dialogue Completion state

[lofty rapids]

how do you play the audio ?

[old forge]

@lofty rapids

like this

i also need to figure out how to only play the audio at the NPCs location

i can walk around far and still hear it

[lofty rapids]

i have not done enough with sound to be of much help there

but somehow you want to have an event for when the audio is done

[frosty heron]

it will if u didnt set the auttenuation setting

that's what define how far a sound can travel etc

[dark drum]

You would need to use an audio component and update the sound it plays. This will also give you events for when its finished. The play sound at location is a fire and forget type of event.

[remote meteor]

spawn sound at locaiton

then you get the component as a return, then you can bind finished event

[old forge]

i added a component for it, and changed the "Play Sound at Location" to an activate component

testing rn

[old forge]

i just added that to the component

perfect!

just gotta figure out how to only play the audio at the NPC's location, and make it quieter the further i walk away

[remote meteor]

attenuation is what you are looking for

and remember the "ears" are at the camera location by default, you can change it if you need

[old forge]

I have allow spatialization on

[trim matrix]

Here's my attempt to make the following Blueprint from the following C++ code:

void ValidateTime(unsigned short& hour, unsigned short& minute, bool& isAM)
{
  unsigned short totalMinutes = ((hour % 12) + (isAM ? 0 : 12)) * 60 + minute;
  totalMinutes %= 1440;

  const unsigned short VALIDATED_HOUR = (totalMinutes / 60) % 12;
  const unsigned short VALIDATED_MINUTE = totalMinutes % 60;

  hour = (VALIDATED_HOUR == 0) ? 12 : VALIDATED_HOUR;
  minute = VALIDATED_MINUTE;

  isAM = totalMinutes < 720;
}

Can any of you skilled guys tell me if I did this correctly?

Because my blueprint isn't acting accurately as the native code is…

[remote meteor]

the Attenuation Setting asset, or override and set manually

[old forge]

ok i see with override i can set the distance myself

FUCK EVERYTHING WORKS

LETS FUCKING GO

big thanks @dark drum @remote meteor @lofty rapids @frosty heron

[lofty rapids]

isAM is an output and your using it in totalMinutes calculation ? will it always be false ?

[trim matrix]

you mean initially?

[lofty rapids]

nvm, it's a regular function not a blueprintcallable

[trim matrix]

the isAM is a bool in the native code I want to copy from but in the Blueprint it's an enum

is this ok to do? is there a better alternative?

[lofty rapids]

it looks fairly similar but why didn't you just use a boolean ?

to make it 1 to 1

[remote meteor]

fyi, engine already has a FDateTime/FTimeSpan types..

[trim matrix]

Oh

[trim matrix]

ty sm for this info I'll try to see if I can utilize it

[trim matrix]

I like the enum structure better but when I try to make an equivalent, the blueprint doesn't act according

When I add 1 min to the time for debugging, the AM and PM completely changes

For debugging, this is how I'm adding the 1 min

Why is it doing this?

This is the bug, video wise

[lofty rapids]

i would imagine for some reason total minutes is < 720 ?

print string total minutes

or it's flip flopping

it looks like the enum is flipping each time so i would look at the input output of that

[trim matrix]

I think so as well, that's why I was wondering if I made the blueprint accurately to the native code example

[remote meteor]

if im exactly redoing the code in blueprint, this would be it https://blueprintue.com/blueprint/sksjfz8u/

[lofty rapids]

i mean you used an enum instead of a boolean

so "accurate" idk

[trim matrix]

ig 😔

[trim matrix]

I'll try to see if ur's is more accurate rn

[remote meteor]

it is these node in the end

and passes by reference

idk why it is like that, but accurate to that code function

[lofty rapids]

validated minute looks incorrect

[remote meteor]

oh

ops

reversed sign

wait

lmao

im dumb

[gentle urchin]

Modulo💝

[remote meteor]

https://tenor.com/view/smug-smug-anime-smug-face-gif-23056382

[gentle urchin]

Homemade?

[remote meteor]

yea

[gentle urchin]

Or new in 5.x?

Neat!

[remote meteor]

homemade, unreal one doesnt work well with negatives

[gentle urchin]

~~Iybgot ~~they got an abs there iirc

[lofty rapids]

this will also have to be used different because your not using pointers anymore, so i take it thats what your trying to output ?

so you can use it on the next go ?

[trim matrix]

I'll try

[fervent nova]

Hello! Does anyone know how to remove duplicates from an array. (Fairly New to working in Blueprints)

[remote meteor]

dont use a TArray in the first place, use a TSet
when you add them to the array, you can use AddUnique

[fervent nova]

Well it might help if I explain kinda what I'm trying to accomplish. I'm parsing through and xml file to pull some data out to make into variables and the array is coming from a for each loop that is obtaining the attributes value. So I guess I'm struggling understanding how to properly setup the Add Unique function. I'll screen shot what I have right now. It's crude but it seems to be getting the job done.

[random pulsar]

hey guys

[frigid summit]

i finally fixed it kind of by not fixing it at all

[frigid summit]

it automatically fixed it itself

[lofty rapids]

and whats the problem, your getting duplicate attribute values ?

[random pulsar]

i want to enable complex collision for these 7 objects,how can i make it?i tried matrix but there is no option like this and if it is the one i showed what do i select there?

[remote meteor]

index is the unique identifier? In that case, probably just have an array of already processed index and skip them if they are encountered the second time.

[random pulsar]

or is it in importing settings?i disabled the simple collision when imported so i can enable the complex

[lofty rapids]

this will get slow pretty quickly i think

[fervent nova]

Ohhh for sure but luckily I only need to run this once

[fervent nova]

That's just it. It's coming from an XML file. Soo I can't really process it beforehand.

This is my example xml if this helps.

            <block lx="-0.5" ly="-0.499999881" lz="0.5" ux="0.5" uy="0.499999881" uz="1.5" index="121" material="5" look="1" up="3" color="ffbfada3"/>
        </item>
        <item parent="1" index="2">
            <block lx="-0.5" ly="-0.499999881" lz="1.5" ux="0.5" uy="0.499999881" uz="2.5" index="121" material="5" look="1" up="3" color="ffbfada3"/>
        </item>
        <item parent="2" index="3">
            <block lx="-0.5" ly="-0.499999881" lz="2.5" ux="0.5" uy="0.499999881" uz="3.5" index="121" material="5" look="1" up="3" color="ffbfada3"/>
        </item>```

So you can see the index is a block identifier for what block is being used. But I don't need the duplicates. I just need the 1 value.

But when making the array it comes out with a ton of duplicates.

So when I make the array here it contains a ton of duplicates. I'm trying to figure out how to do the add unique that you were talking about.

Hopefully that helps.

[lofty rapids]

why are you make array with one item ?

you probably want an array variable

if your wanting to group them

[fervent nova]

hmmm

maybe idk if that would work. it might. I just need the block index to use to make procedural meshes. Then I plan on getting the lx,ly,lz variables for the sizing of the meshes.

[random pulsar]

i did it,now another quescion,how do i enable the custom collision preset

oh,the same

i just couldnt find it

now i did

[fervent nova]

if I make it an array variable does it remove the duplicates or does it contain them all.

[lofty rapids]

you have a variable, you would add each one into an array, but you need to know which is what to reference the proper data

you would add unique like suggested and you would have an array of the values

but how to know which is what ? maybe put that on the the thing you spawn so it knows ?

[fervent nova]

yeah that's why I wanted to make the variables so I was going to use some sort of if statement. Like if index = 121 then spawn said proceedural mesh. ETC

[lofty rapids]

are you getting any invalid ?

[fervent nova]

No nothing invalid. Which makes me think that it doesn't matter that I have duplicates.

[lofty rapids]

well if you have duplicate values of that attribute

that doesn't mean necessarily that you have duplicate elements

see you have multiple index with same value, colors as well, but it's a different element

[fervent nova]

No no duplicate elements as those are different blocks.

idk, maybe I'm going about this the wrong way...ugh...

[remote meteor]

In this scenario, do you only want the first one?

[lofty rapids]

i mean it doesn't look like a very efficient way and a lot of loops and stuff

[fervent nova]

Lol basically I'm trying to take the ship saves from Avorion (the game) and use blueprints to build procedural meshes in unreal. Hense turning Avorion into a 3d modeling tool. It's ambitious but could be kinda cool.

[fervent nova]

I mean if there is a more efficient way to handle it I would be all for it.

[lofty rapids]

are you just storing a list you can render ?

like a list of objects basically that you want to render with certain properties ?

xml is older tech, modern stuff is json

but it could work either way

<root>
  <object index x y z />
  <object index x y z />
</root>

[fervent nova]

yeah so the save files contain the index (Block Type) being used and then the x,y,z cord information for where each block is placed. So my idea was to create a blueprint that would convert the ship save files to useable data to then create procedural meshes. I'm no programmer so needless to say this has been a whole thing.

[nocturne fossil]

cant i see who got damaged with eventanydamage?

[lofty rapids]

well i feel like you don't need to go so deep with it if your just storing a list of stuff to spawn

jus use the root and check all children, then go through each one and spawn it

[trim matrix]

Thank you so much, now it works without flaw @remote meteor @lofty rapids
🙏 ♥️

[fervent nova]

this would work if all the blocks were the same right? Or wouldn't I need some other thing to say that like index 1 is block, index 2 is slope, index 3 is sphere etc.

[lofty rapids]

you could just set an attribute

type="block"

type="sphere"

etc...

[fervent nova]

Ugh can I just borrow your brain for a night. I promise I'll give it back.

[fervent nova]

The only other thing I just thought of is that the grid for Avorion might be different than that of Unreal. So I might have to deal with that at some point.

[lofty rapids]

as far as the data goes, that's the simplest way to do it, you won't need so many nested loops

it'll be faster

also cache the array before you loop it

[warm cypress]

Hello just had a quick question, I'm working on my first game that I think would be pretty simple, its just a game within a PC (similar to kinito pet) I have a computer model im using but I'd like to know the easiest way to get my computer animations like chat boxes and such on to the modeled computer, I thought about mking each frame a texture but I feel like theres gotta be an easier way

[fervent nova]

How do you cache it?

[lofty rapids]

when you get all child nodes, right click on the out nodes and see if you can promote to variable

if you can, do that, and then plug the variable into the foreach

it won't run the get for nodes each time the foreach runs

[lofty rapids]

if you use one big array you may want to watch out for memory of a huge list

maybe break it up into chunks if you can

<root>
  <section id="1" />
    <object x y z />
  </section>
  <section id="2" />
    <object x y z />
  </section>
</root>

a little more code but if your xml was large you could split it into chunks to load stuff only within a certain area, or however you wanted ig

[fervent nova]

yeah it's a rather large xml for sure.

So like this?

[mortal coral]

I've got a math problem that is a little beyond me.

How would I go about determining if a Ray is within a Cone, and if it is not, not clamping it into that cone?

the origin of the vector will necessarily be the tip of the cone

[lofty rapids]

can you right click and make get children nodes unpure ?

that might actually be better than duplicating the array but yes like that is better

[fervent nova]

right clicking on the root node?

[lofty rapids]

the get children nodes node

see if you can make it not pure

so you don't have to duplicate the array

[fervent nova]

Doesn't look like I can.

[lofty rapids]

ok then thats fine

it should run better like that

but a huge xml you may want to split it up for memory sake

memory vs performance, if it's too much just use the node itself

[fervent nova]

Thanks man. Much appreciated.

[lofty rapids]

on something large i've never done it but you may want to look into reading files as a stream

[lofty rapids]

i would use c++ for large stuff like that you might get some problems with array size and bp shutting down

if you make a blueprint function library, and do some code in a function, it will greatly reduce the time it takes and it won't fail but freeze the game if not in one tick, so you can load really large stuff

https://www.youtube.com/watch?v=V707r4bkJOY

so if you have > 500 or somewhere around 1000 in bp your kind of f'd

[gentle urchin]

Not really accurate but

[lofty rapids]

well i had the problem myself when looping

around the same amount

it does depend on what exactly your doing but a large array in general and it breaks

normally in programming 1000 things is nothing

[gentle urchin]

Depends on what exactly you're doing, if you need it done in one frame, and how you're doing it

Frame slicing is an option

But yeah larger iterations usually benefit greatly from c++

Its one of the bigger isolated payoffs

[sick sky]

in editor blueprints, AI controllers doesnt exist on play ?

player controller are accessible

[warped juniper]

So the lesson is a bit of C++ just boosts BP tremendously?

[lofty rapids]

when it comes to loops for sure

[warped juniper]

I thought that was common knowledge. But it's neat to see a more clear example

I still need to get some better C++ knowledege

[lofty rapids]

mixing the two is really powerful

with a Blueprint Function Library you can off load all sorts of stuff

i know a bit about programming so for me it's not too difficult

but i use bp for whatever i can

[uneven hedge]

UATHelper: Packaging (Linux): LogInit: Display: LogBlueprint: Warning: FMemberReference::ResolveMember (K2_EndAbility) bSelfContext == true, but no scope supplied!

Any chance this could happen when EndAbility is called via a macro?

[faint pasture]

I moved just my math for a field of view system to C++ and went from 8ms/frame to 0.05

it was a lot of math, and big loops

[lusty sphinx]

I'm currently trying to follow along this tutorial to make a scalable/modular system for handling gameplay tags and adding listeners. The problem with the tutorial's approach is that it isn't too scalable cause it seems I need to keep adding separate event dispatchers on top of adding their bind/call events for every gameplay tags handled through a switch on gameplay tags. Is there any way around this, or should I just not bother trying to handle bind/calls inside this BPC_GameplayTags.

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

[warped juniper]

A blueprint function library using C++ functions?

[warped juniper]

What's the stuff you moved there? Would love to see an example to show where that massive improvement happens

Sure 8ms isn't much but that's less than 1% the original time, that's just.... WAY too good not to implement.

[faint pasture]

8ms is huge, that's half or more of your frame budget

I had a line of sight system that shot traces from the viewpoint towards corners, and did math to figure out if the corner was blocked on the left or right, and did some triangle ordering stuff

[warped juniper]

Ah interesting. All I have for Line of Sight is a collision based system that makes dynamic collision meshes...

It's not as fancy but doubles for making the visibility

[tight pollen]

I have 30 float variables and I need to have a separate timer for each variable. Is there a way to create 1 component that will have all the functions for a given variable and this component can be used in another component?

[lofty rapids]

yes, you can then place the functions anywhere you want

[tight pollen]

I just have to update these 30 variables all the time and each of these values ​​will be different

[warped juniper]

I feel I could use that for some systems I have...

[tight pollen]

maybe there is a good way...

[warped juniper]

They are very simplistic but overall important for my game

I talked about it to you before engage

Though at this stage, performance and efficiency may not be the best focus.

[faint pasture]

Although I've gone away from that system and now just do a bunch of traces without aiming at corners in particular

[warped juniper]

Dang, it even has partial model rendering! This is some good stuff.

[faint pasture]

thats just masking

[warped juniper]

Yeah but I couldn't figure out how to attach masking to that

So it's impressive for me.

[faint pasture]

This is the current system which more "shotguns" traces so it doesn't rely on corners and fancy math

[warped juniper]

Can you maybe write down the logic of how exactly this would work? I feel this is a struct + component thing but I'm not too sure...

[tight pollen]

is there something in the unreal engine that allows me to create 1 variable with all the functionality in one place, and then use it in a component in which I will duplicate this functionality x30, assigning a unique name, etc.

[warped juniper]

So just the classic line array with amount and distance based on parameters...

[faint pasture]

30 exactly or a varying amount but on the order of 30?

[tight pollen]

something like Macro, Function library, but with replicated variables

[warped juniper]

I've never seen the dots though

[faint pasture]

Yup, but all in C++ so it's fast. thousands of traces is no problem

dots are just to visualize the trace endpoints

[warped juniper]

Ah fair.

[faint pasture]

and a bit of math to make it equal distance between them instead of equal angle

[warped juniper]

Hm but if I do the traces part and relevant logic only ins C++ and most of the rest on BPs I assume it would still be a massive improvement.

[faint pasture]

yeah the rendering on my end is still BP

i'll link the plugin so you can poke around, it's dead simple

https://github.com/AdrielKinnunen/SpectrelightPlugins/tree/main/Plugins/SLVision/Source/SLVision

the C++ code spits out an array of triangles to be drawn to a render target, which is then used in post process for visualization and in materials for masking

[warped juniper]

Oh thanks. I personally don't have much to do for visibility... BUT cone shaped attacks are one of the banes of my life

I really wanna implement them but they are this unsung, strange thing...

[tight pollen]

as much as I add, it will be something like components, e.g. if I add 1 component to a character with this, I will have 1 variable with all the functionality, when I add the same component again I will have 2 etc. but it will be about something else

[faint pasture]

cone shaped attacks should just be a sphere trace + dot product test

[warped juniper]

I even thought about modelling a cone shaped custom collision! I got that desperate.

[tight pollen]

and I need something like I described here

[warped juniper]

I mean a cone with a flat top.

And bottom

Less flamethrower, more like swinging a blade

[tight pollen]

Maybe I'll create 1 component that will be a base with functionality up to 1 variable, and then create another component that will create 30 of these base components?

and will attach them to the character

is it good idea?

someone can help?

I just want to create something like: I have 1 base component with all the functionality, replicated variables, etc. and I want to use it in another component that will be attached to the character.
\

is there simply no other option than to create 30 variables connected to separate timers?

[lofty rapids]

you want to attach a timer to variables ?

are they floats, integers ?

[tight pollen]

floats

[lofty rapids]

because you might be able to use an array

but you want a component in a component ?

[tight pollen]

but I want each variable to have a different frequency of change

[tight pollen]

something like it

but it doesn't necessarily have to be this if there is a better solution

I was thinking about creating 1 base component with functionality and then duplicating it and attaching it to the character with another component that will manage all the other components

[dawn gazelle]

You can have functions set up that can manipulate variables "by-ref".

As far as timers go, if you you can work a little C++ in, you could create objects that have a world reference and you could spawn them to keep track of the timer for a specific variable as needed.

[tight pollen]

any solution in BP?

[dawn gazelle]

Using an actor

[tight pollen]

actor with 30 components and making a parent actor out of it?

[dawn gazelle]

You should only need a single component.

[tight pollen]

but I need a separate timer for each variable with all the rest of the functionality

e.g. I want to track the health of each bone in a character

[jaunty solstice]

Does anyone know if there is any way to detect a Mouse Up event in a Construction script?

I have a Actor Blueprint containing a PCG graph and Spline to control the bounds. Lets call this BP_Parent
The PCG graph elements are all themselves Actor Blueprints being driven via Editor tick.

Whenever I modfiy the PCG graph via the Spline, I also need to manually also do a PCG > Cleanup followed by a PCG > Generate.

If I could somehow capture a MouseUp event (the end of my Mouse drag and Spline manipulation) in the BP_Parent construction script, I could simply get a reference to the PCG>Cleanup and PCG>Generate methods.

[dawn gazelle]

The component would handle that.
When you want to manipulate an attribute, your functions can take reference to the variable holding the attribute value and manipulate it "by-ref".
When you want to create a timer for an attribute, you'd spawn an actor that contains the timer logic that calls back to the component that spawned it, as well as a means of referencing to the attribute so that the timer logic can call to the component to manipulate the attribute. When whatever logic is done with the timer, you can destroy the actor.

[tight pollen]

and this will be optimal?

[dawn gazelle]

Optimal would be to use C++ so you can make objects that have a world reference rather than using actors for the timers. You don't want to have 30 components on an actor that all do the same thing just with one variable being different.

[tight pollen]

ok, thanks

[dawn gazelle]

Consider something like this just as an example - you'd define what attributes you need before hand, you can create an enumerator that matches up with the attributes. You can use that enumerator to make select statements to then drive things within the component.

[gentle urchin]

pretty neat

I'd make it more generic with some array/map of the data, but yeah 😄

enums are often more clear cut i guess

[dawn gazelle]

Unfortunately for timers, they bind to the specific delegate, so if you have a single delegate defined on any single component or actor, the timer system will only bind to that delegate once - this makes it impossible to use a single event to trigger logic for multiple things at different times. The concept of using an object or actor is that each of them is then treated as their own unique entry by the timer system.

[gentle urchin]

"Scer2 — Today at 9:39 PM
but I want each variable to have a different frequency of change"

tick (or highest suitable interval timer), manual tracking of last refresh

[dawn gazelle]

The only issue with Map is that it doesn't replicate, but if this is entirely single player it would be a fine solution.
Multiplayer could use an array but would require you to loop through it each time you want to make a change to any particular value in order to get or change the value which isn't very efficient.

[gentle urchin]

you can combine those

if you want to

map for fast lookup to the correct index, if the array was of notable size

doesn't need to be replicated, just needs to be identical server/client

[dawn gazelle]

Yeah true

[gentle urchin]

It's what im doing for my equipment comp rn 😕 feels dirty as hell since it's so tiny

15 elements, not worth the lookup optimization xD

[languid hemlock]

I use SetFocus function to keep ai looking to player. It looks, but rifle doesnt because rifle is at right part of pawn and it doesnt look to character correctly. Where could i do wrong? Or how can i fix that?

Line Trace is forward from muzzle

[lofty rapids]

can you add a rotation if he's in firing mode ?

either that or change the animation maybe ?

[languid hemlock]

I can, but how many rotation? It would be manuel solution, I wouldnt like to change offset if i change animation or something

I thought maybe there was a function to synchronise the rotation of the two actor

[stiff chasm]

is there better way to get variables from a class because holy

[limber parcel]

damn i really need to learn c++ xD

[languid hemlock]

afaik your alternatives are limited because you get class from name, best alternative looks like using async load class asset and construct object from it, cast it to your asset then getting variables, so you dont see unnecessary ones

[drifting finch]

here is the bp

can someone help like i made a character switch system i'm just using the paragon characters for now but it works so far but when i switch to the character on the back for some reason the material get mixed up any one know how to fix this

[unique turret]

Hey guys -- any ideas for this one? I'm trying to create a simple physics setup where the door stopper on this screen door sort of behaves like a rotating piston. In my head, it should be easy enough, but I've wasted an afternoon trying every physics config I can think of, nothing has come close to working. How would you approach this? The door itself is setup, I just want the piston arm to follow the door when it open (point A rotates and to follow point B when the door opens).

[dawn gazelle]

You're only changing the mesh asset that the skeletal mesh component is using and not updating the materials

[supple dome]

I would just animate it

[finite hearth]

Is there a trick to making homing projectiles more reliable? I'm finding that if the target actor moves, the projectile will sometimes over-shoot and end up orbiting the target.

[drifting finch]

wait so it doesn't auto update the materials

[dawn gazelle]

Meshes are separate from Materials

[drifting finch]

oh i thought it like in the editor when you switch the mesh on the component it auto populates the materials

[coarse tide]

I'm working on a VR game and I've figured out how to get in and out of my car, but the camera keeps spawning in the middle instead of where the camera is. Any ideas?

[stiff chasm]

Unreal is Saying I'm Hard referencing a class, but I've used a soft class reference only?? what do I doo??

[drifting finch]

thanks so much yeah i had to manually update the materials thanks abunch

[dawn gazelle]

I think it's a hard reference to the asset, not the class.

Eg. How can you reference a class without knowing something about the asset that contains the class?

The definition of the soft reference variable is essentially a reference to the asset.

[stiff chasm]

So even if it's a soft reference class variable, it's still referencing the asset?

But in that case why isnt it showing it as a Soft class reference in the reference viewer?

Like this

I'm trying to Reduce my sizemap on my game Instance

[dawn gazelle]

It won't show as a soft reference because you have a hard reference to the asset.

[stiff chasm]

But how, I don't reference it at all?

[dawn gazelle]

You do, simply by having a soft reference in your blueprint.

[stiff chasm]

But then

[dawn gazelle]

Change the soft reference to "Actor" then it would no longer need to load your asset.

[stiff chasm]

Okay nevermind checks out

[stiff chasm]

Code won't work without the specific reference, I'll give up on reducing the size map and look elsewhere

[dawn gazelle]

If you need that specific reference, then that likely means you don't need a soft reference anyway.

[stiff chasm]

I think it'd be more optimised to use a soft one and Load it once the speficif reference has been selected,

or let me try make it hard and see what happens

because I think it normally loads all the child classes, or atleast the selected child class into memory

[frosty heron]

If you are going to show the sequence in that level regardless anyway, might as well let load it in the loading screen or when the map is open

[stiff chasm]

or or or, maybe I'm wrong about it needing to be specific

I'll try making it generic

[dawn gazelle]

One way to think of it better is looking at things like Textures or Sound Effects.
If you use those as "Soft References" then you don't necessarily need to load the specifc texture or sound effect until you need to use them - the engine will natively always have "Texture2D" and "Sound Wave" loaded which are the "class" of the object, so these are hard referenced.

By specifying your "BP_FighterParentClass" as the soft reference type, that means you are referencing the "BP_FighterParentClass" as a hard reference to that asset because you've defined it in the game instance. If you were able to use "Actor" as the soft class reference type then it wouldn't appear in the size map at all, but could still contain a reference to your BP_FighterParentClass without requiring it to be loaded.

[stiff chasm]

You wer right good sire 🙏, I will note this for the future

This is my old code, is it safe to say this is a bad use of a Struct

Should I have had it as individual variables instead?

[frosty heron]

use re-route node for sanity!

[stiff chasm]

Yeah I'm getting to that too 💀

Gonna recode this whole thing

this is 3 years old I think

[hallow compass]

i have changed a bunch of input variables on some public bp functions, and now some of the assets that implemented those functions will no longer open, resulting in a crash.

in my specific case its functions on a control rig library, used in control rigs. maybe the crash is caused by the autocompile functionality.

Does anyone know if there is a way to rescue the assets that implemented the old functions? I am happy to edit some text files, look into the source code or anything else. I just dont really know where to look atm :/

[frosty heron]

@hallow compass do you use source control?

[hallow compass]

its just a day's work, nothing submitted. since this happens more often than not with control rig when changing functions would be ideal to have a system to fix it directly

[frosty heron]

There's no saving corrupted bp from my experience

But anytime it happend to me now, i just discard changed in the source control

Happend to me for my animation stuff too

Mainly physich assets

[hallow compass]

yeah i thought that was the case :/ but literally any time i add an inpput to a global function, all previous control rigs will crash

i tried to disable compile/autocompile from the control rig source code, but it still compiles somehow on launch. maybe editing source files from the general plug in library doesnt work as id expect or idk

[frosty heron]

Maybe Run on debugger and see what the crash is about

[hallow compass]

so it fails to check that cause it doesnt exist. but if i could open the rig before it checks for that stuff like a normal bp i would be able to refresh the nodes

at least thats my hopeful interpretation'

[frosty heron]

I assumed "global" function is of your own making?

[true wind]

Just came across what I consider to be novel, maybe just boils down to me being dumb, but I have a BP and a C++ component attached. The BP seems to be calling the component Constructor/BeginPlay on state change ( I have a bool property I use to trigger it to move ). I'm trying to achieve like a portcullis that closes/opens, but I'm finding it challenging to do that without being able to say determine it's original location

[hallow compass]

its just a public function, made in control rig. so i just chagned the box from private to public

[hallow compass]

constructor/beginplay. calls both or you interpret them as the same thing?

[true wind]

It calls both. I mean realistically if I could even find a way to get the original location I could work it out. LIke i have a BP object that i want to move from it's originating location to a target location. Then when triggered again I want those to swap so it goes back. This is trivial if I can keep state

The component works on a static mesh, there is some extra business going on with BP

[hallow compass]

cant you just store start location on begin play of the component. store final location when you move it, and then revert?

[true wind]

That's what I had. In begin play i do startlocation = GetOwner->GetActorLocation() and then targetlocation = startlocation + transform

and I'm triggering, in PIE via a bool property toggle

but when it flip the bool, begin play is called again and so I lose the original location

[sage lagoon]

Something bizarre is happening to one of my widgets. This one is designed to let the player move from one spot in a vent maze to another. (Image #1) Every time a button is clicked and there is a path ahead, the player moves forward. Normally, when any of these buttons are clicked, the arrow buttons are supposed to disappear then reappear after a five-second timer delay. But now, when a button is clicked, they stay on the screen. I have a Timer delay (Image #2), but it seems the program just skips it. What could be the problem?

[hallow compass]

how could begin play get called twice? it should only be called when the game begins

[true wind]

Man ... I been asking myself that question all day. Never-the-less it seems true. BP->Component , I click BeginPlay is called ... I toggle bool, beginPlay is called again ( this doesn't impair things because it's in original state and the current location is the start location ). I toggle again to start reverse, and begin play is called again

To be clear ... it's BeginPlay on the component

[hallow compass]

begin play cannot get called twice, unless you are doing some obscure stuff. I would double check what you are doing in the construction script, but its kinda hard to give advice without seeing

[true wind]

When I attach same component to a StaticMesh for example ... works fine

BP has nothing in construction .. I basically convered a static mesh to a blueprint class

no event graph, bupkis

somehow on a state change, it's re-calling begin play in the components

[sage lagoon]

Can anyone help me with this, please?

[lunar sleet]

Normally #umg but if I recall BDC_Patrick said setting vis by enum has issues and you should use the actual visibility. Otherwise maybe you can remove from viewport

[sage lagoon]

I could, although that would reset the floating number which determines where the player is and which level sequence to play in the vent maze.

[lunar sleet]

Is there a Visible checkbox on the widget panel?

[sage lagoon]

Are you talking about the Set Visibility node or the Visibility element of any of the widget's buttons?

[lunar sleet]

Well the set visibility node only lets you use enum right?

[sage lagoon]

As in enumerator?

[lunar sleet]

Yeah

Regardless, if that same code worked before but not now check if that code is actually firing and if that branch is actually true

[sage lagoon]

Actually, I did put in breakpoints and I removed certain nodes and can confirm the icons do normally disappear when set. The problem is that the code seems to ignore the Timer which delays by five seconds and goes right to making the buttons Visible again.

[lunar sleet]

Add an initial time

See if that does it

[finite hearth]

What might cause my "Play Montage" node to immediately be interrupted?

[sage lagoon]

Which of these, then? The bottom one?

[lunar sleet]

First one

The variance is how much it can vary

[sage lagoon]

Oh. I tried the Time there, and the program still skips.

Here's the whole part.

[lunar sleet]

Make sure FuncLongDelay isn’t being called elsewhere

[sage lagoon]

Nope, looks like this is the only one.

[lunar sleet]

Ctrl+Shift+S , Alt+F4 for sanity’s sake

[sage lagoon]

I just remembered something. Let me try it.

[lunar sleet]

I don’t rly see where that event is calling the stuff in the second screenshot either

[sage lagoon]

That's because I didn't do what I should have before.

[undone bluff]

wth is that delay for

[sage lagoon]

This occurs during a level sequence in which the camera moves down one path in a vent maze. While the three navigating buttons are Collapsed, the Delay keeps the arrows from reappearing until the sequence has finished.

It and the Timer are included to force the program to take the pause when needed.

[undone bluff]

but why are you making them visible twice

[lunar sleet]

Doesn’t look right

And normally the timer waits the first 5s before firing the event, so something else is wrong

[sage lagoon]

I'm not quite sure of what you mean. But first, here is the first of the "North Button" branch. The three buttons are set to Collapsed. Normally, they would be Visible after the custom event which we just looked at, but the program just skips the Timer delay for some reason.

Because of this, the arrows are on the screen during the level sequence when they are not supposed to e.

*be

This is how it was before.

I've removed the Delay from this custom event. Now the arrows are still on-screen when they aren't supposed to be. I feel like this custom event is missing something.

[undone bluff]

so you aren't setting them to visible at all?

[sage lagoon]

I am. It's kinda hard to see on that one screenshot. One second.

[undone bluff]

yea you are calling an event that starts the timer, then immediately afterwards setting them to visible

the timer is not doing anything here, it's just going to call the FuncLongDelay event after 5 seconds

[sage lagoon]

Oh. What would be the best way to set this up, then?

[undone bluff]

move set visibility to this

[sage lagoon]

Okay, I'll try that.

[undone bluff]

unless a node has this symbol, everything afterwards will still be executed in the same frame

[sage lagoon]

That did it.

[frosty heron]

If it's for level sequencer then drop it in level sequence

Add the actor into the sequence then set the property there

Delay/timer doesn't really go along with level sequence

They r played frame by frame

If u do something outside of it, things may happend if u alt tab for example, the calls would be desync

[undone bluff]

yep, just a simple delay instead of timer should've been sufficient in this case, timers give you control and are good for repeating things though

[frosty heron]

At best you can call trigger event from the level sequence

[undone bluff]

coldsummer makes a good point, but I'd suggest binding to the OnStop event of the level sequence instead

[frosty heron]

Well y not use the level sequence to hide or unhide

[sage lagoon]

The widget calls upon a set of short level sequences for navigating through a maze by clicking on buttons, and which sequence is played depends on the floating number.

So that the program can keep track of where the player is.

[frosty heron]

U can have something initiate the sequence

But the "cinematic" part should be inside the sequence. Eg the vissibility of the object of interest

[sage lagoon]

OnStop? Hm...I might have some thought. Anyway, @frosty heron, here is an example of when sequences are called. There are seven ones that involve moving straight ahead and some that turn in a direction, either before proceeding or before you find you can't go in some direction.

As for using the level sequence to hide or unhide, you mean to say I could have a Level Sequence even hide a widget when needed?

[frosty heron]

R u making cinematic?

What are u actually doing

[undone bluff]

ah yes, the ancient technique of nested if-statements

[sage lagoon]

Hold on for a second while I do some capturing.

I'll share a Drive link in a second once the footage is uploaded.

https://drive.google.com/file/d/1HNFC0NNsfbAsvLqHfdJCcD696lw-aAaU/view?usp=drive_link
@undone bluff @frosty heron
Here's what I mean.

[frosty heron]

I'm not dlding anything 😄

Upload directly

[undone bluff]

drive has an embed player

[sage lagoon]

If it will let me. Trying now.

[undone bluff]

that said, this is a really bad usecase of levelsequences

[sage lagoon]

There we go.

I'm sure there are better ways. This was just the only method I knew of.

[undone bluff]

all you'd have to do is make the left and right arrows rotate the pawn 90 degrees, then for moving forward there's a variety of ways, but I'd probably just do a quick trace forward to check if you aren't looking at a wall

[frosty heron]

What is the delay for?

[sage lagoon]

To keep the arrows collapsed until each sequence finishes.

[frosty heron]

Oof do u use delay in between transition?

Just do what scaith says

[sage lagoon]

Initially, until I learned about Timers.

[frosty heron]

Bind on event complet, set arrow vissibility

Well timer or delay has no place for something like this

U only have to run it after the sequence is finished

[sage lagoon]

So binding lets you put in some command that occurs when the event within a clickable button finishes?

[frosty heron]

I can tell, u gonna get bug relying on delay using sequencer. Player can alt tab, and u will get undesired hiccups

[sage lagoon]

In Event Complete's case.

[frosty heron]

Bind om sequence complete

At the end of the sequence it will run an event that you bind.

[undone bluff]

for the event delegate (red wire) do the same thing as with the timer

connect it to a custom event and it'll be called when the sequence is finished

[sage lagoon]

So, in this case, I would make one function which would Bind Event on Finished, and then attach the red Event to a custom event that would then make the three buttoms become Visible again?

[undone bluff]

well, do not put this in a function, this is asynchronous

[sage lagoon]

Then one custom event and link it to another?

[undone bluff]

it doesn't really matter, what matters is you bind the event that sets the visibility with the level sequence as target right after you play it

play level sequence > bind event

[sage lagoon]

It worked! There is more than one level sequence, though, so would I need to combine them into some variable or will I need to make a custom event for each sequence? Each sequence consists of either turning 90 degrees or moving forward from Point A to Point B.

[undone bluff]

just bind to whatever sequence you are playing

[sage lagoon]

Okay. This looks a lot more useful, too. I'll have to remember not to use delays with sequences for future reference. Thanks for the tips, once again!

[dire halo]

Is there a way to change InterpToMovement to use cubic or quadratic interpolation between points instead of constant? Seems like there should be but I can't figure it out.

[lunar sleet]

Ideally use them almost never

[lunar sleet]

Can’t compute, try #game-math 😅

[sour moat]

Anyone know how to shoot something that is attached to player? I used attach/detach/add force/simulate physics/enable collision, but add force didn't work, the actor just fell off from player.

[pine mesa]

Can someone help me figure out this problem?

I'm using a "2-player" system where I assign each player a character; possessing the characters with WASD to move the first character and arrow keys to move the second character. I'm possessing Character #1 with the normal "Get Player Controller," and for Character #2 I'm using a second controller to possess it. When I tested P1, it worked and I could move the character freely, but when I tested P2, my string prompted the "ENHANCED INPUT LOCAL PLAYER SYSTEM" was invalid and I could not move my character even though it was possessed. The Enhanced input system is only valid when I possess my character using the "Get Player Controller", but not when I'm possessing it using my Second Player Controller. How do I fix the "ENHANCED INPUT LOCAL PLAYER SYSTEM" being invalid when using the Second Player Controller?

1st image is the input system being set up in the Character BP
2nd image is the Second Controller Possessing in the Level BP
3rd image is the Second Controller Spawning and Setting the variable in the Level BP
4th image is the First Controller Possessing in the Level BP

[undone bluff]

force is intended to be added continuously, you should add an impulse instead

[lunar sleet]

#multiplayer is alot more complex and you can’t use get player controller for it

[dawn gazelle]

This isn't how you add a controller. Use "Create Local Player" if you're doing something local.

[gentle urchin]

Didnt know this existed ^

[regal brook]

not sure if this is the right section, but I am having an issue.. I set up a fight cam and when i did it now throws the character movement off by 90degrees.. I have looked all over and I cannot seem to find anything

The character is facing toward the forward which in this case is along the y-axis.. when i put in the new camera movement switches to x-axis.. very strange

[leaden crest]

Is it possible to have the value of a float track from one timeline follow the value of a different timeline? Lets say a timeline A goes from 0 to 1 over five seconds when a key is held down. When the key is released, timeline B starts at the current value of timeline A, and brings it back to 0 in two seconds. (Using timeline's Reverse exec will not be right for the project, I want to do a different timeline animation rather than just the reverse of Timeline A)

[gentle urchin]

You can prob manage with just 1 timeline

And 2 tracks

[leaden crest]

Oh that would be great, is it possible to make the 2nd track's initial value start at whatever point the 1st track is currently at?

[gentle urchin]

Just externalize the value

And use the timeline as a alpha track

[leaden crest]

Looks like I have much to research about timelines, not quite sure how to do that - thanks for pointing me in the right direction though!

[void raft]

Hi, I'm building a teleport system and I want to spawn Niagara, which gets triggered when the character teleports, but it doesn't work. Can anyone tell me how to fix it?

[frigid summit]

hi guys how to make the player follow the rail without using splines the splines are too hard for me to place its just not for me is there other method to make player follow this rai

[dark drum]

Not really. What are you finding difficult about placing the splines?

[frigid summit]

i spent half an hour placing them and its not even placed correctly

[dark drum]

What do you mean by not placed correctly?

[frigid summit]

its just too hard

[dark drum]

Not really, it looks like the top point isn't in the right spot. Additionally, if you right click on a point you can change the anchors to be weighted as opposed to auto. This means the handles can be different lengths.

[agile moss]

Hi
How do I set the widget to a random location after I click it?

[dark drum]

That would depend how the widget is added to the screen. If it's in a canvas panel, you can just use the set positon node.

[frigid summit]

what should i choose

[agile moss]

Thanks, I couldn't find any location nodes 🥲

Nvm that just made the whole screen small in the top left corner 💀

[frigid summit]

it fixed now thank you so much and i turned of snap to grid also and that fixed it

[latent venture]

I am trying to create an procedural generation spawn for the map of my game, but i have one problem, I observe that its never going on the last condition of the select, basically its not spawning a room tile into my -Y coord, do you have any ideea why, or how could i solve this problem, it spawns tiles only for +X / -X and +Y , but not for -Y, how can i fix this 😦

[lofty rapids]

is it going to index 3 ? @latent venture

[latent venture]

what do you mean by that

[latent venture]

?

[lofty rapids]

your selects are selecting based on an index

looks like you have -y hooked up to index 3

is that index being reached for that variable ?

[latent venture]

yeah

i mean if i putt them in other order, it will take -y

do you have any other ideea on how could i do this part of the generation?

[gritty wraith]

How can i make an actor to make the mouse events pass trough? Like, in this scenario, i want Actor 1 to not stop the mouse projection, so that both of them can call "On Mouse Begin Overlap"
https://media.discordapp.net/attachments/375019046128713729/1223597290556493834/image.png?ex=661a6ec7&is=6607f9c7&hm=1266d9f9fd766c0ead2c6a9768e41b41094d5fd08f4d9e5c6e0b54cbcfda1e45&=&format=webp&quality=lossless

[hallow compass]

i made a template anim bp that has an anim layer interface implemented. however, the children of the animbp dont seem to have access to the interface. why? this means i have to add the interface manually on each child and edit the values, as opposed to just having it ready because it was set up in the parent

[versed sun]

maybe try On Mouse Begin Overlap triggers a MultiLine Trace from Camera to Past your cursor position
Something like this:

[obtuse oriole]

how do I prevent the character controller from moving the "Mesh" relative location when crouching? For crouching I simply enable "Can Crouch" in the "Character Movement" and use "Request Crouch". Capsule half height did change properly as intended

[gritty wraith]

how did you get your connection lines to look like that?

its beautiful

organised 😱

[versed sun]

Electronic Nodes Plugin

[gritty wraith]

Thanks!

[lethal pollen]

What's a 3D Widget?

Thanks!

[versed sun]

A widget thats in the world , not just on your HUD

[gritty wraith]

a widget that is in the world like an actor. Usefull if you want cool menus like this:

its a little harder to code in tho... but not impossible

[lethal pollen]

Thanks. I thought it is an actor with a widget.

[gritty wraith]

i might have thought of a better solution for my specific situation... If i have an actor that is a horizontal plane at cord Z=0, how would this actor know the cordinates [X, Y, 0] where the cursor is pointing?

[gritty wraith]

well... your technically right... 3d widget is an actor component...

so for a 3d widget you have to make a special actor

that has that component

[lethal pollen]

Thank you.

[versed sun]

you can give the plane a unique Collision Channel , and then only look for that channel

thats what i did

[pulsar vigil]

Hey guys i need to tie together multiple variable to one variable actor but when i try this with a map on my actor variable and i put a structure, the structure seem to be overwriten and i think its because the structure instance is tied to the variable it self so i can't have a different instance of structure tied to different key of the actor.

Any idea on how to tie multiple variable to an actor variable ?

[frigid summit]

hi guys how do i tell unreal to ignore specfic spline point rotation

[versed sun]

maybe a Select node?

[tepid kindle]

hi folks.
TLDR: is there a way to assign a variable of Actor Component with another component from same BluePrint where both are attached?
Long Story
There's a variable Zone of type ShapeComponent reference on one component.
This component is attached to a BluePrint. Also that BluePrint has Sphere Collision (which inherits ShapeComponent).
But the dropdown selection for Zone variable is empty and there's no way to drag n' drop anything into it.
I know this can be done dynamically, but the point is to provide a designer with easy setup without tinkering with Event Graph.

[frigid summit]

ok thannk you

[tepid willow]

Hello, I'm having an issue with something very specific to how BPs work.

That's the code that I have, and it works as intended (screenshoot 1 and 2). SetupFoeGroups is always called prior to DoWaveSpawning_Implementation. SetupFoeGroups might be called multiple times, whereas DoWaveSpawning_Implementation is called only once, but always after at least one call of the SetupFoeGroups. It's a multiplayer game, and it works perfectly when the code is executed with any amount of players. The problem occurs only if a new player joins after the code is executed. However, the thing is that this code is never executed after there is a late joiner (which is correct, I want to execute it only when players decide to start the game), but the thing is that all the instances of StartSpawningFoes except the last one in the chain (i.e. the last iteration of the foreach) break - they don't exist anymore. If I call 5 of them, I'll have only one if there is a late joiner.

I have tried to rewrite the code in a dumb way (third screenshoot), and now it works correctly: all the StartSpawningFoes exist regardless of when players join or leave.

Does anyone know why it might be a thing? I have only tested that in PIE and Standalone Mode, but in both cases the first version works incorrectly.

[spiral ridge]

Hi ! Why code work in Level Blueprint but don't work in separately Blueprint ?

[lofty rapids]

what code ?

[dark drum]

If I was to take a guess, I would say it's because you're pulling variables from functions on a different execution path. (Big no no in my opinion) There's no guarantee the variables your pulling will have any data in them.

[dark drum]

You know... the code.

[tepid willow]

I actually have tried to save it in a variable, and it doesn't work regardless. I have tried to unwrap the whole function, and put the actual code in the event itself, yet it didn't work out

[dark drum]

You'll need to show what code your referring to.

[frigid summit]

didnt work basically im trying to set the rotation of the charcter to face forward but cant

[lofty rapids]

set control rotation ?

[frigid summit]

ok ill try it

[lofty rapids]

idk if that will help but did you rotate something ?

[frigid summit]

how do i set control rotation

[lofty rapids]

is your character rotated normally in the bp itself ?

because you set the rotation back to 0,0,0

[lofty rapids]

is this the code that you ran that did that ?

[frigid summit]

yea in the charcter blueprint i didnt play with rotation just in spline blueprint

[frigid summit]

yes

[pine mesa]

It creates a separate window and I can't move my character. How would I keep it in one single window?

[spiral ridge]

Even if I use simple combination like this, its work in Level Blueprint, but dont work if I create it in Blueprint separately in my project folders.

[lofty rapids]

you need a pawn or character and possess it most likely

[frigid summit]

if i set relative location only it face also wrong direction

[versed sun]

in the BP's Class Defaults , set to Player 0

[lofty rapids]

i would think you want it to be always rotated forward

your character should be facing forward and then you move it

looks like your using the ue character, did you change some stuff ?

[frigid summit]

ill look into it

[lofty rapids]

i can see you are moving forward, but you shouldn't have to rotate your character

[frigid summit]

i didnt find anylogic that does this maybe its because of the spline

[spiral ridge]

Its work! Thank you !

[frigid summit]

why

[lofty rapids]

so this is auto walking on a spline or something ?

[versed sun]

this in the CMC ?

[frigid summit]

yea and playing run montage

[lofty rapids]

are you set actor location ?

[lofty rapids]

that would make sense then you are actually facing forward

[frigid summit]

yes

[lofty rapids]

so you may be able to use lookat

i would just set its rotation not relative

[frigid summit]

ok ill try it you mean use get actor location and target get location along the spline right ?

[lofty rapids]

yep

[frigid summit]

yea the set actor location dont work in splines

[lofty rapids]

so wdym i thought thats what your using

you can use lookat and move forward possibly

[frigid summit]

im using set relative istead of set actor

[lofty rapids]

so i think what is actually happening is your moving but your forward is staying the same

lookat rotation may fix forward

[frigid summit]

i tried set relative rotation and set actor rotation both didnt work

[lofty rapids]

well you set relative rotation to zero

try to set it to lookat

[frigid summit]

so is it wrong with the location

[frigid summit]

yea to look at i set it

[lofty rapids]

didn't rotate it ?

[frigid summit]

yea

[lofty rapids]

hmm

i would get the point, get lookat, rotate the actor, and move it forward

but idk much about control rotation and how you would have to set that

[lofty rapids]

i know you can use control rotation to change your forward

[frigid summit]

ok ill try this

[simple field]

Erm I fixed an error in my level blueprint, but when I try to play the game it keeps opening autosaves of the level blueprint (that still have that error) and says it can't compile the game cause of the autosaves... What's the issue? The error is no longer in the level blueprint, why are weird autosaves coming up?

[lofty rapids]

look into control rotation i think thats your forward

[simple field]

I tried fixing it in the autosave and all it did was open ANOTHER autosave with the same error

[lofty rapids]

so ue is just opening up autosaves ?

idk is that an option ? or you have to press something for that

[simple field]

when I press play to test my game, it says game couldnt be compiled cos of an error, when I click that error it opens up that autosave

This is my compiled level blueprint, clearly says compiled

but when I play the game, this appears

[frigid summit]

i think the main proplem here is that it doesnt face the spline rotation

[simple field]

errr I just fixed it in like 5 autosaves and it started working suddenly

[lofty rapids]

don't play in editor

check the errors

hit cancel

check the error in the file

since it's compilation error, click compile and check the errors

[simple field]

yea i did, i checked the error in the autosave, then compiled, and then pressed play to have another autosave with error appear

[lofty rapids]

but going back in autosaves works as well

[simple field]

it just kept coming up with autosaves until i fixed all but

why is my ue being weird like this

the game doesnt do anythign with the autosaves does it

[lofty rapids]

they are just for editor

but you fixed the errors ?

and it came up again ?

[simple field]

Yep it came up with a different autosave everytime i fixed the other

had to fix like 6 in a row and then it started working

other than that, do you have any idea why when I change levels in-game, it kinda breaks the game? when I open each level by itself, it works properly how its intended

[lofty rapids]

wdym "breaks" ?

[simple field]

but when i launch the game, go through the menu and start the game (so open a level), half of the stuff doesn't work - like using my mouse to zoom in/out and rotate etc

same happens when I launch the level my "playthrough" is on and then using pause menu I go back to the main menu, there's a mesh that doesn't show up

Earth is supposed to be here in the menu

but it doesnt appear when I change levels

someone told me it's possibly caused by gamemodes but idk what that means, what's wrong with gamemodes

[lofty rapids]

is the globe in the main menu level placed in or spawned ?

[simple field]

placed in i guess

i just put it there in the viewport and made the camera to face it

[lofty rapids]

if you place something else does it disappear also ?

press f8 and look around, do you see the globe anywhere ?

[frigid summit]

i tried and tried but it dont just work is this because of my splines

[lofty rapids]

try to do what you were doing but set control rotation

set it to like 90, or 180

see what happens to the character

maybe you can use the lookat to set control rotation

so your character looks in the direction of the next point

[frigid summit]

ok it fixed it kind of but its always the two last points are the proplem

[simple field]

Yes anything else disappears aswell

f8 doesn't seem to work

menu is in ui input mode only so thats why maybe

[lofty rapids]

well i was thinking you camera is just rotated or something, so to pop out and see if thats the case

are you possessing something with a camera ?

[simple field]

camera is fine, i'm telling you this only happens when I change the levels

otherwise its doing what it should when i play every level by tiself

[simple field]

Nope not in the menu

[lofty rapids]

is it a seperate level ?

[simple field]

Yes

[lofty rapids]

what sort of camera are you using ?

[simple field]

normal camera actore

actor

[lofty rapids]

what is your default pawn setup in main menu ?

in world settings

[lofty rapids]

hmm, and anything in begin play of the level bp ?

[kind estuary]

Here's something thats getting me confused recently
In ue when you have an actor that inherits from another actor you say that actor is a child.
but the same term is used when an actor has components inside it that are also child
is there a better term for this
it seems the former is the correct one
and the second is different though the same term is used for it

[lofty rapids]

can you not set the ui only mode and see if you can move the camera around ?

and you don't have a playerstart ?

how does it auto possess the camera ?

i'm thinking your not actually using that camera

[simple field]

erm i removed the ui only mode and camera appeared inside earth

[lofty rapids]

the earth is is the scene and what is the stars ?

[lofty rapids]

and you can move it around ?

[simple field]

yep

[lofty rapids]

right so your not actually using that camera in your main menu most likely

[simple field]

how do I do that

[lofty rapids]

i usually possess a pawn with a camera attached

idk how to just use a seperate camera yet

[lofty rapids]

you could set a game mode override, create a default pawn with a camera, set the pawn in world settings, and it will possess it when you start the level at player start

thats how i would do it

it would start in the same spot every time

move the camera on the character either way

then you can set the mode back if you want to ui only

and it should be fine

when you don't actually have a possessed character or camera then you get that free flying one

[surreal peak]

There is also always the option to make a PlayerCameraManager child class and use that to define what the camera should do. Might not be as straight forward for beginners, but would be a better way than having a Pawn that is only there for camera reasons fwiw.

But ultimately, no one cares I guess as long as it works 😅

[frigid summit]

ok so here is how i finally fixed it

[simple field]

Erm it doesn't possess it for some reason

still appears to be inside the earth

[lofty rapids]

do you have a player start ?

and also can you move around now ?

[simple field]

considering i dont know what that is i'd say no

cant move around now

but when i open my game it finally works

its just the menu camera now

[surreal peak]

PlayerStart is the thing you can place into the Scene that UE by default uses to figure out where to spawn your DefaultPawn

[simple field]

Omg thanks

fixed now

saved me a few hours

[lofty rapids]

there child of lots of things

in programming it's common for anything created from or in another to be called a child

[lofty rapids]

like directories, you got your parent and all the children same thing

[ember lichen]

I'm using a single level for the main gameplay, but I need to make it spawn specific biomes on specific plays but I'm not sure how to input variables into a level as it plays, any help there?

[lofty rapids]

wdym "input variables" ?

you don't know how to change them dynamically ?

[ember lichen]

For the first time the level is played it would receive the biome variable as 0, then it would spawn the biome linked with the 0, for the second time the level is played it would start with a 1, etc

[ember lichen]

I guess not?

[lofty rapids]

are you actually re loading the level ?

[ember lichen]

Yes, it switches to a different level in between

[frigid summit]

hi do you know why nither set timer by event and function and delay dont work on event tick why it canel everything that delay

[lofty rapids]

you definately don't want to set timer on tick that makes little sense tbh

what are you trying to do ?

[frigid summit]

stop anim montage after it complete its spline thinge and add movement input

[lofty rapids]

so you are actually loading another level each time ? and you just need to track an integer like 1, 2, 3, ?

[ember lichen]

Yes

[lofty rapids]

i would use the game instance, it persists throughout the whole game across levels

create a variable that is an integer that stores your biome mode

[ember lichen]

Alright, I'll check that out thanks

[frigid summit]

also even the bool dont work after everything is done on event tick why it cancel even the bool

[ember lichen]

Can I use the game instance to save progress or should that be done elsewhere?

[lofty rapids]

i don't know what your saying because i can't see any code, wdym "cancel"

[lofty rapids]

there is a built in save system i have not used it, but you can store stuff across levels in the game instance

so normally when you load a level, almost everything resets to defaults

except for game instance

[ember lichen]

Ok thanks

[frigid summit]

basically like this and even if i set the bool to false and stop the montage from the charcter when it false it doesnt detect it

[lofty rapids]

you could also have an array of integers where the index is the level you are on 1,2,3 and in the array at that index is the number for the biome setup for that level

[frigid summit]

thats what i mean by cancel

[pulsar vigil]

Guys quick question i only want to set certain member of a struct so naturaly i use set member but from a logical perspective it look like u have to feed the set with a struct ref wich is logical, but as show on the screenshot u can take from an input a set member and set the struct member without a ref structure ( i ask cause when u take it from the input pin it recommend set member naturaly wich should not happen if it was'nt possible) ?

Im also asking cause it would permit to not have to feed a variable and have to constantly manipulate it

[lofty rapids]

the only boolean i see is looping and the one on the left i don't see anything in your code

[frigid summit]

ok ok ill change it

[lofty rapids]

are you setting it true somewhere ?

[fading hawk]

Yes - there is a built in diff which you can access from the asset browser. You select 2 files you want to diff, right-click and then select diff to activate the tool. See https://dev.epicgames.com/documentation/en-us/unreal-engine/ue-diff-tool-in-unreal-engine?application_version=5.3 for more.

[frigid summit]

yes in the beggining of event tick

[lofty rapids]

well then your just resetting it to true on tick

so setting it to false basically does nothing

because you set it to true right at the start of the next tick

chances are slim that your other code runs in that timeframe

[frigid summit]

oh ok than how do i fix it

[fading hawk]

Just to update you on diff - you can use it without version control. Select the 2 BP files from content browser and right-click and select diff. See https://dev.epicgames.com/documentation/en-us/unreal-engine/ue-diff-tool-in-unreal-engine?application_version=5.3 or https://youtu.be/XYZsvouytVQ for more.

[lofty rapids]

you want it to stop after your done ?

you need to find out the end of your spline, can you check the index maybe ?

then turn it off, or when you hit the end of the spline turn it off

how are you looping through your points ?

and i would set it true elsewhere other than on begin of tick

set it true when you start

and false when your done

[sick sky]

thats a cool feature, ty for sharing

[frigid summit]

ok how do i check if its the end of spline

ok ill show you the full code

[lofty rapids]

just the loop or how your traveling down this spline

[frigid summit]

i dont know where it is here is the full code

[lofty rapids]

so is this starts right when you begin play ?

[frigid summit]

yes

[frigid summit]

because its event tick obviosuly

[lofty rapids]

ya so i would start by doing a branch off the tick that only runs if that boolean is true

are you running this at begin play as an intro ?

[frigid summit]

its not an intro its just i have player start in my endless runner and i placed the spline there and i will change it later because this is not my main enviroment

[lofty rapids]

so you definately want that branch at the beginning

and then switch it when you get to it or something

[frigid summit]

ok i will do a branch in the beginning and should i set it to false right after the spline movement finishes right

[lofty rapids]

unfortunately it looks like you set it false on tick, and that would just shut the whole thing off

just switch it on and leave it on for now

you need to figure out how to know your at the end

maybe by using your x, y coords

[celest trench]

Is it possible to attach something at a socket position rather than its root location? Not the item it's attaching to, I know you can pick an attach socket. But the actual item. For example if a player is picking up a gun, it attaches to the hand socket already. But how could I make the gun not attach at the root, but a specified socket on the gun as well?

[frigid summit]

ok

[lofty rapids]

so that will switch it on and off with the branch

i would maybe check you location is at the end of the spline somehow

maybe with bounds

or use a collision box if you can

at the end, just when you hit it shut it off

and the same for start when you hit it turn it on

might work

[lofty rapids]

you could also use a timer but then you would have to match it perfect and if you changed the thing you would then have to go in an find that magic number again

and probably with delta it would never be dead on

[frigid summit]

ok i will use overlap box

[lofty rapids]

ya one at the beginning, one at the end, and then just switch the bool

[frigid summit]

basically i used event tick because the overlap box and the begin play didnt work so i had to use event tick

[lofty rapids]

i mean it makes sense to have it on tick, you just want to be able to turn it on and off

[frigid summit]

and i also put the box in end and it didnt do anything unfortunatly

[lofty rapids]

is the collision happening ?

meaning is the overlap event firing ?

[frigid summit]

i set it here and on begin overlap i print the strin but still

[frigid summit]

should i make it in other actor

[lofty rapids]

nothing printed ?

[frigid summit]

yes

[lofty rapids]

hmm, so do you have collision set on your character properly, you bump into things ?

[frigid summit]

yea

[lofty rapids]

hmm

[sick sky]

is the Game state created after or before the level load ?

[frigid summit]

ok ill change it to other actor see if it works

[lofty rapids]

something with your collision settings if it's not firing i would think

[frigid summit]

seems like this event tick cancel everything wtf

[lofty rapids]

so it shuts off but you do other stuff on it as well ?

why are you using the spline tick for anything else ?

[queen valley]

how do I zero out vector's up and down axis (specifically camera's forward vector)

[lofty rapids]

or maybe the boolean is used for other stuff and you shut if off now it might mean more than it describes

[frigid summit]

i doutt my collision do anything to this because its the default one

[dawn gazelle]

Don't confuse a child class and a child actor component.
One is a definition of what something can be. The other is something that is attached to an actor.

[lofty rapids]

wdym "zero out" these are by nature not 0

[queen valley]

i need to make a trace in front of me even if my camera is pointing at the ground

should i use a mesh's forward vector

[lofty rapids]

so trace from your character not the camera

[frigid summit]

yea it shut off only the animation still looping

[queen valley]

but then i have to rotate it 90 degrees cause its off

[frigid summit]

its just for one thing

[lofty rapids]

so how are you running, with play montage ?

[frigid summit]

yes

[lofty rapids]

what does your anim bp look like ?

[frigid summit]

default one

[lofty rapids]

but also #animation might know more about it

i don't use play montage very much i use a state machine for most of it so far i'm still learning

[lofty rapids]

can you still move or are you supposed to be still moving ?

like is it supposed to auto move ?

[queen valley]

Nvm, I used the mesh instead of the capsule

[frigid summit]

i dont think this is related it this because even if its still looping it cancel everything i dont think that

[frigid summit]

its auto move but i can still move using left ad right

[lofty rapids]

so the collision never happened so it's still looping ?

or that works now ?

because if you don't shut it off it will still do what it was doing which is stick at the end

[frigid summit]

yea the animation still looping because i set it to loop again im sure that doesnt shut things off

[lofty rapids]

so where do you actually move your character forward ?
if the collision works and the boolean is set then your probably using the boolean to move forward in general ?

which i would make another one for that seperate if so

[frigid summit]

i move it only using play montage i was using add movement input but it doesnt work with splines unfortunatly

[lofty rapids]

here where you add movement is this the only place you do that ?

[frigid summit]

yea because if there is else the charcter wont move right

[lofty rapids]

well you want to move the character forward even if your not on the spline right ?

it should auto move

so the spline stuff being switched off

that boolean is all you use to move forward

you want to do that all the time to keep moving

i would use a boolean on the character like isrunning or something

[frigid summit]

here is what play it

[lofty rapids]

thats fun you want it to loop right ?

because you should be always running

[frigid summit]

yes

[lofty rapids]

so think about it

your still running but not actually moving

you want to keep moving

that spot where you use that boolean get rid of it

just move the character

i would use a seperate variable for that to turn it on / off

[sick sky]

will this pure function be called x times or only once ?

[frigid summit]

ok i will use seprate variable

[sick sky]

like, does UE cache the result

[lofty rapids]

i think it's called for every connection

part of what makes it kind of a performance hit sometimes

[sick sky]

okay ty

[frigid summit]

oh i forgot i already used this seprate variable in te charcter blueprint and that didnt work

its just shut everything off even the overlap

the proplem is there is no alternative to event tick

[lofty rapids]

timer by event

if you don't want to do it on tick

this way you can also just clear and invalidate the timer

np all done it won't run

[frigid summit]

ok ill try it

[lofty rapids]

make an event that create the timer and runs a custom event, do the movement on the custom event, then on overlap of the end run a custom event that clears and invalidates timer by handle

so you just call the events to turn it on/off

[frigid summit]

but i still need delta seconds

[lofty rapids]

well you don't need it, but you can get world delta seconds or something like that if you really want to

[frigid summit]

ok

[lofty rapids]

but with a timer i think your fine its independent of the frame rate i think

[lofty rapids]

if that shuts a lot of stuff off then that boolean is in the wrong place, you may want to call it gamerunning or something lol

or paused

[frigid summit]

as i thought it dont want to go over the spline the event tick is the only solution

[frigid summit]

sorry i i made you tired but i dont think there is a way out of this

[lofty rapids]

you can do the same thing with a timer that you do on tick

and you just need some booleans in the right place

as far as "no way out of this" if you want to use tick go ahead

shutting it off should work fine

you just aren't moving your character like you want

if you want to keep him moving forward you need that programmed in it won't just happen

you'll also need to make sure the rotation is correct

so you head down the correct path

[frigid summit]

yea i want him to keep moving forward but i dont know how because event tick still shut things off

[frigid summit]

its correct

yea i used branch and boolean at the beggining of event tick

[lofty rapids]

i c so you have it set to false add movement input and thats not working ?

[frigid summit]

yea

[frigid summit]

and also print string

[lofty rapids]

so you didn't switch the boolean

if the print string doesn't show then it's still true when that code runs

you need to make sure the collision at the end happened and the proper boolean was switched to false

also instead of doing all the gets on tick, you can do the gets on begin play and cache them to variables

then just use the variables

unless your spawning them

in that case you would need to keep getting

[frigid summit]

i used also this on event begin play and splines dont work i dont really know why

[lofty rapids]

you need either tick or timer for your code to work

[frigid summit]

yea i did tis before and still

[lofty rapids]

hmm

if no print string then that boolean is true

so you didn't set it false

so somethings wrong

[frigid summit]

yea but the proplem is everything execpt the event tick wont make the charcter move along splines

[lofty rapids]

and it works tho

so whats the actual problem ?

your not stopping at the end and keep running

[faint pasture]

I think mouse sytem uses Visibility channel

Try just not blocking that

[frigid summit]

the proplem is that it stuck in it place at the end of spline cuz i set it to the set relative location along the spline

[frigid summit]

because it reached the end

[lofty rapids]

well like i said i would of used set actor location

idk why that wouldn't work

[frigid summit]

i dont also know why

[lofty rapids]

it should work fine, i use it all the time

maybe you did something wrong but like i said before i wouldn't use relative anyway

as far as moving the character goes

you want the character to just move

[frigid summit]

yes

after it reached the end i want it to move freely

[lofty rapids]

hmm

[faint pasture]

Then do that.
Event Reached End -> change some stuff to make movement free now

[lofty rapids]

i'm still not sure if your overlaps events fired

[frigid summit]

yea it didnt

[lofty rapids]

so theres the problem

the variable is still true

and your still ticking down the spline but your at the end

idk why your collision wouldn't work

[gray lantern]

I updated from 5.0 -> 5.3 when I try to build now I get this error

Error    MSB3073    The command ""D:\Program Files\Epic Games\UE_5.3\Engine\Build\BatchFiles\Build.bat" VFX_Vault_5_0Editor Win64 Development -Project="E:\Users\user\Perforce\GTL\UE\GTL5_0\VFX_Vault_5_0.uproject" -WaitMutex -FromMsBuild" exited with code 6.    VFX_Vault_5_0    C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets    44        

any ideas?

cause im stumped, I've tried deleting all the intermediate files an such

[frigid summit]

maybe because of this event tick

[lofty rapids]

the tick on the spline seems to work fine

you have a boolean that is a branch that runs on tick

did you do that ?

set it to false as default

[frigid summit]

yes

[lofty rapids]

and see what happens

[frigid summit]

i did that

[lofty rapids]

and what happens ?

[frigid summit]

nothing changes

[lofty rapids]

the tick still runs ?

that makes no sense thats not how it works

what does your branch look like ?

or maybe you set it true somewhere in code

[faint pasture]

@frigid summitExplain from the top what you're trying to do. You have a character, and you want them to slide down a spline then hop off and get back to walking, right?

[frigid summit]

thats hard really to explain

[lofty rapids]

ok so theres your problem

your setting it to true

then checking it

hmm

you are missing fundamentals

you don't want to set

you want to get

and plug that into the branch

you just set it true and checked if it was true

so do that and then set the default to false

and see what happens

you should hopefully run into it and turn it on, get to the end turn it off

but idk how collision will work with relative

you should be just fine with using world location

just set actor transform or something

[faint pasture]

Explain it anyway.
What game mechanic are you trying to make?

I'm guessing you want to have a character that can walk around, it touches spline, it gets yeeted down spline like on a track, and it pops off on the end and gets back to walking, is that right?

[frigid summit]

ok ok im trying to move the charcter along the spline and play anim montage and rotate if it reaches certain distance but the proplem is at the end it shut every single event off

[frigid summit]

this is the whole blueprint

[frigid summit]

i tried and still

[lofty rapids]

are you still setting it to true on tick ?

[faint pasture]

What do you want to have happen at the end?

[frigid summit]

print string or anything but it doesnt even the box overlap

[frigid summit]

no

[faint pasture]

first make sure the overlap even works, just walk into the box and see if it triggers

but you shouldn't need a box, you can just check the distance along spline after moving too

The general form shoudl be like this, don't use a bool for state, use a character reference

[frigid summit]

yea i already did this

[lofty rapids]

ya the length of the spline nice

[frigid summit]

the proplem here is im doing this on event tick

[lofty rapids]

i feel like thats not a problem

[faint pasture]

thats not a problem