blueprint

[frosty heron]

void UKismetRenderingLibrary::ExportTexture2D(UObject* WorldContextObject, UTexture2D* Texture, const FString& FilePath, const FString& FileName)
{
    FString TotalFileName = FPaths::Combine(*FilePath, *FileName);
    FText PathError;
    FPaths::ValidatePath(TotalFileName, &PathError);

    if (Texture && !FileName.IsEmpty() && PathError.IsEmpty())
    {
        FArchive* Ar = IFileManager::Get().CreateFileWriter(*TotalFileName);

        if (Ar)
        {
            FBufferArchive Buffer;
            bool bSuccess = FImageUtils::ExportTexture2DAsHDR(Texture, Buffer);

            if (bSuccess)
            {
                Ar->Serialize(const_cast<uint8*>(Buffer.GetData()), Buffer.Num());
            }

            delete Ar;
        }
        else
        {
            FMessageLog("Blueprint").Warning(LOCTEXT("ExportTexture2D_FileWriterFailedToCreate", "ExportTexture2D: FileWrite failed to create."));
        }
    }

This is the code, the buffer is your bytes Im guessing, a series of int8

[magic raft]

i only managed to decode it from string using bytes and convert to Texture2D

[frosty heron]

then you can recreate it with ImportBufferAsTexture2D

[dark drum]

In my test system, I had all stats use an attribute object. So this was for things such as health and stamina. Anything that would change them would also be an attribute object.

The first screenshot is a list of the function in the base attribute object. Most of these are just for registering the module with the manager component (gets placed on the character). When you create children, you can then override some of the functionality as needed.

The next screenshot is the initialize module function on a poison attribute. This sets up event dispatcher bindings and finds the 'Health' module from it's parent.

The third screenshot is what happens on the modules tick (called from the manager). This handles how it should behave. In this case, it modifies the health component as needed. It also contains logic for auto removing itself when the poison duration has elapsed.

[young meteor]

Smart. Need a bit of time to digest the info, but thank you. Will think on it 🙂

[proper flower]

why the hell my cast doesn't work? I'm going to be crazy today

the A neon ceil is an actor that have a static mesh and a rect light

I'm calling this from another actor

both already present in the scene

[lofty rapids]

Actor is not A_Neon_Ceil

if it's failing

[proper flower]

the actor variable is actor object reference

A neon ceil is a child of actor class

what I'm missing out?

[lofty rapids]

what do you have in the reference ?

[lofty rapids]

So you made a variable

[lofty rapids]

but you didn't assign it a value

what are you trying to cast ?

are you just looking for that actor ?

[proper flower]

I need to get the rect light info from ceil

[lofty rapids]

well a cast from an empty variable probably throw error

you may want "get actor of class"

is there only one of these ?

[proper flower]

multiple neon scattered around level

[lofty rapids]

so which one are you trying to get ?

all or just one ?

[proper flower]

all

so I use get all actor of class?

[lofty rapids]

ya which will give you an array you can loop through

and check values

[proper flower]

okay i'll try

thanks

I hate casting

[lofty rapids]

it gets easier

[eager thicket]

/stream]

[lofty rapids]

when you do that make sure you cache the array before you foreach it

better performance wise

[proper flower]

okay

I'm going with the tag

to get multiple actor blueprint

get all actor with tag

[lofty rapids]

whatever works

[lofty rapids]

right but you got no power going to that set

no execution

[earnest vigil]

I am trying to use physics and custom time dilation at the same time. As custom time dilation isnt compatible with the physics system I have found a possible workaround being turning off the actors physics before messing with the time values. Then once resumed I re-enable physics. The issue with this is that when re-enabled the actor forgets how it was moving and just drops. Any ideas on how to keep the object moving in the same way it was?

[proper flower]

@lofty rapids I'm stuck again.

surely missing some basics about casting here

cause I cannot find a way to connect my actor that I got from the array to the set material

i tried to get rect light variable

but cannot find in the reference

[lofty rapids]

array element comming out of foreach is each one in the array

unfortunately you'll probably have to cast in the loop

because you just got actors with tag

could be anything comming out of that array element

[proper flower]

the only actor out of loop are actor with my tag so of 3 types

I'm branching based on types

but cannot get specified reference to component

and cannot understand why

[lofty rapids]

show the branch ? and your not using array element, show the actual code you posted a slice of the top

[lofty rapids]

you want to set material on each one ?

or what are you trying to do exactly ?

[proper flower]

yeah but each one have different property

so I need to branch out

and get intensity light for example

and manipulate that

[lofty rapids]

so you'll most likely want to cast in the loop so you can get the bp's variables

[lofty rapids]

right because you probably need to set it on a mesh

thos booleans, where do you set that ?

because i feel like it won't work that way

[proper flower]

I'm just templating it

not set yet

[lofty rapids]

you'll want to try casting since they are different types so you can use the variables

you just want if it's a certain type apply a certain material ?

[proper flower]

so i need 3 consecutive casting?

[lofty rapids]

ya unfortunately because they are different classes right ?

[proper flower]

they are 3 different actor blueprint

[lofty rapids]

right but the actor alone doesn't have the variables, the specific bp does

which is why you usually cast

[proper flower]

i need that every light have different intensity and effect

ok but if I cast to these blueprint we return to my main question

how the hell can I get the right object cause a simple actor reference won't work xD

[lofty rapids]

and pull off from it after the cast and get the variable

this could be a light

where after you get it, you can set things on it

i would probably use a parent, and make these actors a child since they all share a common thing

this way you can just cast to parent on them most likely, i think that would work

[proper flower]

I'm confused but ty

I'll mess around until something happen

[lofty rapids]

so when you cast to it, you can then drag out and get the thing

then drag off of it and set things

[proper flower]

I understood this

but how can i make it public

[lofty rapids]

what does the bp look like ?

[proper flower]

what do you mean

it's a simple bp actor

with a mesh and a light

[thin panther]

check the pins for a guide on blueprint communication.
If you find yourself doing a cast chain, an interface may often be better.

[lofty rapids]

ah yes, interface

forgot about that because i have not used it yet

[lofty rapids]

actually it should be accessible with get component

shouldn't have to make public it's not like a variable

[proper flower]

yes but the object

it fails

[lofty rapids]

well you don't have anything plugged into object

[thin panther]

you should really watch that video

[lofty rapids]

so it's not casting anything

[proper flower]

i know it's empy

[lofty rapids]

ya some learning on how bp works might help a bunch

[proper flower]

empty, I reconstructed it

[lofty rapids]

the object input pin, it's not connected to anything your casting nothing

[proper flower]

I saw many videos, surely is something simple that I miss

[thin panther]

well see this video

most tutorials do a very poor job of explaining it

[proper flower]

I said I know it's empty I alreadyt reconstructed it now but I used in past actor reference and many other references but no chancew

[thin panther]

The "simple" thing you're missing is a huge hole in foundational knowledge

[lofty rapids]

i'm not sure what your saying, your saying why doesn't it work ?

because your not casting "from" anything

[proper flower]

i said I already test it out with many casting and failed

btw acuppatea which video do you mention=

[lofty rapids]

these ss's don't help either

it's like slices of stuff with no real information on there to go by

if your looping over the array and checking if an element in the array is a certain type

then you would drag from array element and cast to what you want to see if it is

[thin panther]

the one in the pins for blueprint communication

[proper flower]

I'll learn from video, thanks guys

[thin panther]

Feel free to drop any questions you have after that 🙂

[gentle urchin]

Did you subclass CMC for that TMC ?

I regret posting that 😅

[gusty dragon]

attach actor to actor the parent has phsyics enabled but the child loses all collision is there a workaround for this?

[limber parcel]

it shouldnt lose collision, so i guess it didnt have collision in the first place?

[plain cobalt]

Heya all, hopefully quick question. I have a system that calculates some coordinates setup on my player character in an actor component, and I want to use said coordinates to set the location of one (or more) actors. I would use casting but Im quite new to it, and I dont know what I can do to get a reference to the specific actor as the location is something I want updated on game tick rather than an event like hit or on overlap I can use to get the specific object reference. How to go about it?

[thin cradle]

depending on how much you're willing to change whatever you made, maybe physics constraints?

[gusty dragon]

it does the character can step on the child but when I use a switch to turn on the parents physics the child loses all collision

[gusty dragon]

yeh I was thinking of trying that next

[lofty rapids]

so a component on your player character has coordinates ? like variables ? and you want to access them ?

as far as cast, you can probably get component instead

[plain cobalt]

Yes. I read your discussion above too, but I wouldnt know how to get a reference to the actor

[lofty rapids]

since your using players tick, it would be self

or are you not using players tick ?

[plain cobalt]

I have a custom event in place for a tick system for reasons

[lofty rapids]

you should just be able to drag from the left

[plain cobalt]

Which is also set in the actorcomponent

[lofty rapids]

ok so you used a timer, but this is on your player character ?

[plain cobalt]

yeah, i dont see how this has to do with reaching a reference to the actor though

[lofty rapids]

if it's in the player character bp

you already are there

you don't relly need a reference

you could use self

[plain cobalt]

the actor i need to reach isnt the player character

[lofty rapids]

oh ok

do you have multiple or just one ?

[plain cobalt]

I use a random sphere as a location for an audio emitter, and I need to update its location constantly

Just one, might become multiple

[lofty rapids]

well if it's one you can just get actor of class

[limber parcel]

why not make the spheres a component of your character?

then u can easily communicate with them

[plain cobalt]

Thats a question I wouldnt know the answer to to be honest, so Ill take suggestions :D

[plain cobalt]

That sounds fair

[limber parcel]

unless you have specific reason not to make components i would just do that

[plain cobalt]

Just incase you have tips, what would be a reason not to make it a component

[limber parcel]

if you want to load it independent of player

[plain cobalt]

I guess I dont have a reason for that for now

[gusty dragon]

I had complex instead of simple collision and complex doesn't work with physics (fixed it now) ty

[proper flower]

thanks for the video but was a lot of talking about many different things but I got no help in understanding what I'm missing, perhaps I need a different approach

[torn mason]

Sup, have a question. I am creating some timeline keys that will go back and forth. Can't you copy these keyframes somehow? CTRL + C / CTRL + V doesn't seem to be working

[gentle urchin]

Is it an option to just loop it? 😅

[marble sky]

When adding a UI element to a viewport and then switching render targets, the UI stays on screen but I can no longer remove it or make it 'collapsed/hidden'. Is this expected behavior? Should I re-create the widget on the new viewport to remedy this?

[lofty rapids]

whats the code look like now ?

[proper flower]

I'm stuck

I cannot understand how cast works

basically

i cannot find a way to cast from a blueprint actor to another

in order to get information

the cast fails

is that simple

[gentle urchin]

Cast is just a type converter

[lofty rapids]

show the code

[gentle urchin]

you still need a reference

and it needs to be of the underlying type that you're casting to

[proper flower]

the underlying type is actor

the father is the actor

[gentle urchin]

Parent is Actor

[proper flower]

parent, yea

[gentle urchin]

the pointer may point to a generic Actor

but the pointer can still point to myVerySpecificActor

even tho it's "hidden" in a regular Actor reference

[proper flower]

i need a way to obtain the object for my neon ceiling

in order yo use that informations

[gentle urchin]

Which BP are you in?=

[thin panther]

the video i linked details ways of getting that reference

[lofty rapids]

you probably want get actor of class, or like suggested interface

[proper flower]

the video get me sleepy

[gentle urchin]

interface doesnt grant you a reference tho

you still need a reference

to the thing you're trying to interface with

[proper flower]

I'm in a blueprint called Exception manager

this blueprint is meant to be the handler for all the exception that occurs

at the moment I'm working on a flickering light

so I need the reference from light

[gentle urchin]

exception, is that a gameplay element ?

not like.. actual code exception i suppose

[proper flower]

to change the intensity of light

[gentle urchin]

There's a few ways you can do that

[proper flower]

I already managed to create the flickering light

my sole scope for now Is UNDERSTANd how all type of casting works

cause I surely don't comprehend it

[gentle urchin]

Casting is simply:
Is this reference actually THIS reference?

You go down the hieriarchy of classes.

[proper flower]

this is the neon ceil

[gentle urchin]

Casting doesnt "Get" or "Make" a reference to the actor

it just converts an existing reference

[gentle urchin]

so the thing you wanna learn is how to get a reference 🙂

[proper flower]

okay

how to get a reference?

in this case

how to get the right reference to access neon ceil infos?

a generic actor won't work

and cannot find a way of thinking it

watching a video right now, we'll see

may the redirector not updated bug me?

I noticed that in the reference view i was not updated

[gentle urchin]

GetActoOfClass

• Hacky in most cases
• doesnt let you specify which reference

Instance set reference

• Lets you pick and set references in editor.
• allows you to be very specific about who'm you're referencing
• is frowned upon(?)

[proper flower]

I don't understand this reference

[gentle urchin]

Collision/Trace

• Often used in relation to runtime related references

[proper flower]

why it tells me that the neon ceil is child of the exception?

[gentle urchin]

As they are very dynamic in natire

[proper flower]

it doesn't make sense

[gentle urchin]

This is reference viewer

Not hieriarchy of classes

[thin panther]

From the video in the pins:

[proper flower]

ah ok

Acuppatea I Don't understand, in life I'm not dumb, the contrary, but in this case I'm feeling the dumbest of all

I cannot follow the info you provide from the video

Also squize I didn't understand your last messages as well

aside the last

last is okay

it's not hierarchy of classes

[thin panther]

What that is saying is methods of getting things to hook up to that object pin.

I.e. from a getter, or saving the output of a spawn actor node, or the "other actor" from an overlap, or a get actor(s) of class, or an instance editable actor variable

[proper flower]

saving the output of a spawn actor node?

other actor from an overlap?

[thin panther]

Yes. The output pin of a spawn actor node.

Saving that in a variable

[gentle urchin]

Reference viewer is just a tool to allow you to see which assets reference each other in some way shape or form

[proper flower]

the only I understand is the get actors of class

[gentle urchin]

Hard reference for instance.

[thin panther]

The pin called "other actor" on an overlap node

[gentle urchin]

A cast creates a hard reference

[proper flower]

yeah this is solved

[gentle urchin]

Hard references makes it so that all referenced assets must be loaded to memory along with the class you spawned

[thin panther]

If you are unfamiliar with those I suggest one of the courses in #ue5-general on the official dev portal.

The same way say, using "get player character" for the input of a cast to your character, you must obtain a reference to your other actor.

For some classes, there may be similar getters built in. Otherwise, there are many nodes that will give you said reference. Even things like an instance editable object reference variable

Once you know the words to Google, you can Google them quite effectively

[brisk bear]

WHO ON EARTH MADE THESE ICONS THE SAME THEY DO VERY DIFFERENT THINGS!!!!
how can I make a pull request to UE to fix this nonsense

[proper flower]

okay with that but you can't help me find the object of this simple blueprint?

[thin panther]

You need to address that hole in your knowledge of referencing.

We can't find the object for your blueprint

We have no idea how it exists, or the best method of getting it in your case, so you must learn the methods of doing so

[proper flower]

it's a new blueprint actor created

how can it be so difficult obtain the reference?

[thin panther]

It isn't, and in fact we've provided many methods you can use to get it

[proper flower]

I wonder if there's some broken part in my project at this point

[thin panther]

It's up to you to research those

[lofty rapids]

because you don't understand how it works yet

[thin panther]

Not at all

[proper flower]

I accept that I don't actually know how it works

but can't find a video that help me, this is the problem

thanks again for your time

I will resolve my problem

[thin panther]

Googling any of those methods described tends to bring up a wealth of results.

The official resources on the dev community will also most definitely cover this at some point

#blueprint message

Those tend to be your main methods you can look into

[lofty rapids]

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

[thin panther]

Oh sweet, didn't know MathewW had a vid on it too

[proper flower]

this video shows one of the easiest casting

even I can make this

[lofty rapids]

because the event already fills the other actor variable with an actor

you tried it with an empty variable if i recall correctly

[proper flower]

no

I know that empty doesn't work

[thin panther]

That's the "other actor" pin on an overlap node I mentioned

[proper flower]

this video does not help me unfortunately

yeah but this does not solve my problem

[olive yarrow]

I'm just tryna make this thing rotate slowly and smoothly where am i messing up my interps?

[thin panther]

The. Try researching one of the other methods and see if it solves your problem

[proper flower]

I'm searching

[thin panther]

I gave you many solutions to getting a reference, and one of them will work

Are you trying to reference something that's static in the scene?

Something spawned at runtime?

[proper flower]

in this video it show the reference

[thin panther]

That's not how you get a reference

That's just showing you what your class depends on

[lofty rapids]

i have not even had to look at that yet, what is that ?

[thin panther]

Reference viewer

[gray ingot]

Hi, why my For Each Loop just skip all my elements and do the body only for my last element?

And how can i do so all my doors open at the same time then i call my event?

[lofty rapids]

it's a little hard to tell with your wires all fucky but it's not running through the whole array ?

it should

[versed sun]

put your loop after the timeline

lose the print, you wont see it anyways

[lofty rapids]

why not ?

or why would the print not show up ?

[versed sun]

it would get overwritten 4 time in a tick

[lofty rapids]

so your saying a foreach loop with a print string on the loop body will only output once

?

[gray ingot]

So it does go through all the elements, but it does open only the last

[lunar sleet]

This subway station has too many support pillars, is this a remaking of the Matrix?

[gray ingot]

It is a liminal space so

[gray ingot]

It does go through all, but does body stuff only for last element

[lofty rapids]

well its running foreach likes it supposed to

[gray ingot]

Is there another way to make them all open at the same time?

[lofty rapids]

what if you take the timeline out ?

does it set all of them, or just the last one ?

just to see if it's the timeline

because the prints work

[lunar sleet]

For each loop executes in one tick only

You cannot have latent actions in it

[gray ingot]

Then i take out the timeline it does work for all

[lucid ingot]

im not understanding the logic between this after doing cpp for some time.. The references are the same, but once it is set it generates errors if i just connect it, it works. should i just throw an isvalid in there?

[gray ingot]

So how can i do it?

[lunar sleet]

Actually one sec

[lunar sleet]

Are these doors actors or components ?

[gray ingot]

Components

I can make them actors i think

[lofty rapids]

wdym they are both the same but the first one doesn't work ?

[lucid ingot]

Yeah lol

makes ZERO sense

[lofty rapids]

it's a different name

[lucid ingot]

only difference is replicasted

[lofty rapids]

are you sure the values set correctly to the same ?

[lucid ingot]

same exact pointer tho

[lofty rapids]

wdym

one says ref

one says ptr

[celest trench]

Is it possible to make something ignore time dilation? I want my timer to run consistently even if time is slowed

[lucid ingot]

one comes right from the cmc, and the other in bp

[lofty rapids]

but what did you actually set the values to ?

[lunar sleet]

Prly better. Then you can have this event with timeline on the door bp. Then use get actors of class, for each loop, call the event.

[lofty rapids]

apparently nothing for ref

[lucid ingot]

the one in bp does not work even tho its pointed at the reference.

[gentle urchin]

Custom time dilation > global

[lucid ingot]

this is why i hate bp lol >_<

[lofty rapids]

it's just an empty variable

[lucid ingot]

i get it now.

[gray ingot]

Hmm, i will try it, ty!

[lucid ingot]

simple mistake xD

thanks

[gray ingot]

Stupid question, but can i add actor inside of actor?

Like door actor inside train actor

[celest trench]

So if I want to set it for every player I would have to do a for loop every time I change it? I'm using a timer and smooth transitioning the dilation, so I feel like this would be really inefficient

I guess I could put this on the character itself actually instead of game state. Then it doesn't loop. Nvm, thanks 🙂

[lunar sleet]

You can use attach actor to actor

You can’t add it as a component tho. There’s child actor components but those are not very good

[gray ingot]

Like this?

Is it fk up?

I think it easier to just copy paste and seaquance all doors does it?

Like aren't the same to copy things then use it from bp, but it does the same thing

It is messier but it works

Like this

But it does it as was with for each, only for last one

Hmm

So this is problem of the Timeline

How can i make so my door opens but without timeline

[lunar sleet]

Unless you want it to happen instantly you need to do this like I said

[gray ingot]

I have heard about world delta seconds and lerp, but i don't understand what to do

[lofty rapids]

just have the event on the door, why are you calling it on begin play ?

[gray ingot]

It is for testing on begin

Later it will be on trigger

[gray ingot]

But how do i call it later?

And i need it to be component of the train, becouse it will move later

[lofty rapids]

i'm still learning about latency so i don't even really know why it's not working properly exactly

[gray ingot]

And it will be harder

[lofty rapids]

you just call the open door event on the actor

[gray ingot]

Yeah, the timeline ruind all

[lunar sleet]

I wonder

[gray ingot]

I need to somehow don't use timeline

[lofty rapids]

you can use a timer

and events

[lunar sleet]

Are the values you’re giving it actually compatible with the 2nd door?

[gray ingot]

Someone said to me i can use Get world delta seconds and lerp do "create" timeline

[gray ingot]

Doors are the same

If i change them around and make second door last it will work

So the timeline is the problem

[gentle urchin]

Are you gonna have several doors ?

[lunar sleet]

Use breakpoints and see if the 2nd pin on your sequence fires when you expect it to

[gray ingot]

Many

[gentle urchin]

Id then make a parent door

Using a timeline 🙂

Wrapping the timeline execution im a functionn

[gray ingot]

It will fk up me later then i will be creating train move

[gentle urchin]

Nah it wont

You move them relative

[gray ingot]

But it will be different actor

[gray ingot]

yeah so it will be much more messy

[lunar sleet]

Eh, we’re going in circles here

[gray ingot]

Yeah

[gentle urchin]

Sorry about that 🤣

[gray ingot]

I need to somehow use somthing but timeline

I just need them to slowly open

[lunar sleet]

You keep saying “it’s the timeline” without actually finding what the problem is

[gentle urchin]

The problem is

That the functiom for starting the timeline is called twice

[gray ingot]

Becouse then i don't use timeline it workds

[gentle urchin]

And only the last calls door ref is cached

[lunar sleet]

With different targets

[gentle urchin]

Youd wanna start and stop the timeline, but move both doors during timeline exec.

[lunar sleet]

Ah it’s overriding it?

[gentle urchin]

Yes

Instantly

[gray ingot]

Yeah, as i understand thats what happening

I have onother idea

[lunar sleet]

You could animate it ig

More work tho

[gentle urchin]

Timeline works fine

Just remibe the ref from the function call

And add ref to both doors during timeline exec

[gray ingot]

i have connected alphas

[gentle urchin]

Well... this works

But theres 0 reason for them to be inputs on the event

[gray ingot]

Why?

[gentle urchin]

The lerp setup is ofc horrible

You want fixed locations

So a cached start

And some offset that is your goal

[gray ingot]

So it does work)

[lunar sleet]

If your locations aren’t fixed, your timeline won’t be frame independent

[gentle urchin]

And if your framerate varies, they end up in different locations

240 fps vs 30

Good luck fixing that

[lunar sleet]

Trust me, learned that the hard way lol

[woven turret]

Using UE4.26, Is there any way to access and change the "Shadow Amount" value in a DirectionalLight via Blueprints?
I'm unable to access it directly via a "Set Shadow Amount" for example.
Or is there any other solution to achieve a similar result of lowering this value without turning off shadows entirely? 🤔

[lofty rapids]

i move stuff back and forth with timer by events

and then off events

just get current, add to it a small amount, set it

[gentle urchin]

Timelines are more userfriendly for this

[gray ingot]

what

[lunar sleet]

And I think timer by event is not frame independent

[gentle urchin]

As they have a start, and an end

[lunar sleet]

@toxic jay are coros frame perfect?

[lofty rapids]

wdym "frame independent" ?

[lunar sleet]

#blueprint message

[gentle urchin]

If you move by a fixed value, you get weird behaviour on a fixed "tickrate" (unless you account for it, which you kinda cant in bp)

[young meteor]

I want the distance between 2 Actors. The "Other Actor" is already defined, but for the first I would like the Actor this ActorComponent is attached to (code I'm writing is in an Actor Component). Is the one I'm showing what I need?

[gray ingot]

So my workaround will fk up the game if it have different framerate?

[gentle urchin]

Ofcourse, if you have solid start and end points, it will work fine regardless..

[gray ingot]

Or whta do you mean

[gentle urchin]

Component one

The lower one

With component as target

[lunar sleet]

Umm idk

[gray ingot]

I don't fully understand, so will it work or it will work depense on fps?

[lunar sleet]

Functions usually happen in one tick unless custom, right?

[gentle urchin]

Latent*

[lunar sleet]

Aren’t those macros?

Oh

[gray ingot]

@gentle urchin can you pls tell me

[gentle urchin]

No, just functions with delayed execs based on some delegates of sorts

The function itself executes "instantly" still

[gentle urchin]

Use timelines, is the answer

[lunar sleet]

So functions == subroutines?

[gray ingot]

So i use them

This one timeline

[gentle urchin]

Now swap to fixed offsets

[gray ingot]

What is it?

[lofty rapids]

you probably just want them to open the same for each right ?

i feel like your offsetting the movement

[warped juniper]

Hey there, I have some issues with trying to create a microgame... I'm genuinely lost here, not gonna lie.

[gray ingot]

Yeah

[warped juniper]

The goal here is to display in another viewport a different game, with the unique controls,

[gray ingot]

I am lost now...

[warped juniper]

I'm just pretty much at a loss here, so any advice or help would be deeply appreciated...

[lofty rapids]

is it moving at all when you call the event ?

[gray ingot]

It does work, all is fine, i just ask is it fk up work around?

[lofty rapids]

i mean if it works thats a good thing

[gray ingot]

Yeah

[lofty rapids]

sounds like your doing it the right way

[gray ingot]

I am just curious about this

[gentle urchin]

Try to open the doors

The in the console lock your fps

T.maxfps 20

Then close the doors

See what happens

[gray ingot]

i have 30 fps all the time Xd

[gentle urchin]

Move it down to 15 then

[gray ingot]

Sec

[gentle urchin]

Just to make a point

Do this after opening the doors at runtimr

[gray ingot]

Ok, sec

[lofty rapids]

i think i'm understanding that because the frame rate changed it still only moved lets say 1

and it looks f'd ?

if you made it frame independent ?

[gray ingot]

Lol i see

Even without closing

If i set it to 30 fps

It is ok

If i set it to 80

It goes farther

[gentle urchin]

For each frame the timeline will exec once

[gray ingot]

So why it does it?

[gentle urchin]

So 80 fps = 80uu of movementn

30 fps = 30 uu of movement

Assuming you keep the same 1 uu

[gray ingot]

Okey, but how to fix it

[gentle urchin]

Or cm, as it is ment to represent

Well, think about whats causing this

Or... what you have that would... manipulate that 1uu so it becomes frame independent

[lofty rapids]

delta ?

[gentle urchin]

Yes

[gray ingot]

What is it?

[gentle urchin]

But in this case, it kinda defeats the purpose of the timeline
..

Delta is the time between this frame and the last frame

So at 100fps its 10ms between each frame

[gray ingot]

Okey

[gentle urchin]

At 20fps it 50ms between each frame

[gray ingot]

Yeah, so how does it effect my bp? I don't see it

[gentle urchin]

If we wanted to stick with the same 1 uu logic , for fun lets say

We can take that 1 uu and divide it by the Delta

Erh

Not divide

Multiply*

You want it to be bigger at lowrr framerates 😄

Brainfart, sorry.

[gray ingot]

Yeah so

[gentle urchin]

So try that

[gray ingot]

It will be bigger

[gentle urchin]

Multiply your fixed offset with deltatime

[gray ingot]

But how if don't even know where i use delta xD

[gentle urchin]

And test at 15 and 30 fps

See what happens

Where you have +1..

So instead of +1

[gray ingot]

What is "Fixed offset"

You mean Z?

[gentle urchin]

You do + (1*delta)

[lofty rapids]

i think it's delta world something

[gentle urchin]

Delta seconds

World delta, perhaps

[gray ingot]

?

[gentle urchin]

No

[lofty rapids]

get world delta seconds

[gray ingot]

Yeah, i see

[willow cedar]

Is there a way to Get a Random Transform from the Nav Mesh I can use to Respawn?

[gray ingot]

This is so fk up

Xd

Sorry for this with wires

[gentle urchin]

Get random navigable point or something

[gray ingot]

Like this?

[willow cedar]

Wouldn't I need to be on the Nav Mesh though?

[gentle urchin]

I suppose

But setting up an actor for that purpose shouldnt be an issue

[gray ingot]

It now moves like 0.01

[gentle urchin]

So increase your 1

Make it 100

It effectively now became a unit of movement per second

So 1 uu/sec is nothing ofcourse

Your previous movement was 30uu per second

[gray ingot]

Yeah, i see

It now moves the same

70 fps and 30

For me it is magic xD

[gentle urchin]

Now its "framerate independent"

Detached from the boundries of frames

It can now move into the void, forever.

[gray ingot]

Whithout your help i will sit here for hours, ty a lot man!

[willow cedar]

I got the Nav mesh Spawn Working. Thanks

[gray ingot]

Do you mind if i will add you to my game credits list?

[gentle urchin]

I would still suggest you clean up the code and use target offsets with the lerp instead 🙂

This was more like a proof of concept

[gray ingot]

I don't really know how to do this

[gentle urchin]

Create a variable

For the "Target Z Offset"

How long is your timeline?

[gray ingot]

4 seconds

[gentle urchin]

So

30*4 = 120

Set the variable default value to 120

[gray ingot]

Wich type? Float?

[gentle urchin]

Yes

[gray ingot]

Done

[gentle urchin]

now we wanna connect it to the lerp

but we need to cache the original location of the Doors first

So 2 more variables.
Door1StartPos
Door2StartPos

Vectors

[gray ingot]

Done

[gentle urchin]

Remove the two inputs from the Event

grab the doors direclty

[gray ingot]

How can i do this?

[gentle urchin]

in the details panel

under Inputs

remove them

[gray ingot]

All or only 2?

[gentle urchin]

remove all

you dont need inputs here

for now anyways

[gray ingot]

Done

[gentle urchin]

then we need to cache their start locations

[gray ingot]

DOne

[gentle urchin]

both doors

add the other one aswell 🙂

[gray ingot]

I have this much of them

XD

[gentle urchin]

erh xD

[gray ingot]

Like how do i add them

Hahahahhaha

[lunar sleet]

still going eh? imagine using one actor bp and just calling that event on all instances 🤦

[gentle urchin]

^

Thats what we wanna do

[gray ingot]

xD

[lunar sleet]

so what's the problem lol

[gray ingot]

Not interesting enough

[gentle urchin]

I wasn't aware this was in the train BP

😄

[lunar sleet]

https://tenor.com/view/blinking-eyes-white-guy-blinking-meme-what-huh-gif-26334322

[gray ingot]

So

Fk

I am ill now, and my mind is not doing it's work properly

So

[gray ingot]

Whats the easiest way to make it? And later the train will move as well

[gentle urchin]

• on the end, not +

😄

[lofty rapids]

are you going to be opening more doors as well ?

and closing ?

[gray ingot]

I think so, but it will stop at some point and open doors

[lofty rapids]

and the doors are components on the train ?

[gentle urchin]

crazy to move those

[gray ingot]

Yeah

[gray ingot]

I see what you advise, but my work around also works and has the same mess)

Like i mean if i add 4 doors to your method it will be longer

[gentle urchin]

you'd want to wrap it up in a way that allows you to apply this to all doors in some form of loop

[gray ingot]

Is it a question?

[gentle urchin]

No

[gray ingot]

Then i don't understand it xD

[gray ingot]

Mine does work for all doors too

[gentle urchin]

1 Manager, multiple Door Actors

[gray ingot]

What is manager?

Ah

I am stupid

Ok, so do you cast to doors or what?

How does they talk to manager?

Interface?

[gentle urchin]

depends

can just hack it

GetallActorsOfClass

[gray ingot]

Yeah, but i have heard it is not good

And i also need to then always then my train moves

[gray ingot]

Get all of them

How u do this so fast xD

[gentle urchin]

years of experience

and toying around

i guess

I litteraly just hacked it together tho

BP_DoorParent is the door with its logic

timeline and lerp

DoorManager simply calls the doors "ToggleDoors" function

in a hacky way

Also set the door to just attach actor to actor

[gray ingot]

Ur insane for me, i use ue5 for 4 months and your knowings are insane for me

[gentle urchin]

i already had a spline car (similar to your train)

i've used it for 6-7 years..

[gray ingot]

Ahh

[gentle urchin]

I hope i've learned something in that time

[gray ingot]

Yeah, some things i know now)

Not much

Can i add you in discord?

[gentle urchin]

Gotta nail the basics first

before doing grandiouse projects 😄

moving tons of components can easily become messy aswell

[gray ingot]

Yeah, but i thought i can do it)

[gentle urchin]

changed offset to be a vector

so it's easier to modify direction

[gray ingot]

I can show you some screenshots of my game in dms

[agile moss]

Can someone tell me why my interface is not printing string?

[gentle urchin]

this smells wrong to me

[agile moss]

Why? I followed the tutorial

[gentle urchin]

youre in a blueprint

getting Actor of class

and trying to get the message in a Widget

It's wrong on so many levels

If you wanna just hack it you can use GetWidgetOfClass

[lofty rapids]

are you get actor of class the widget ? it says character ?

not sure you can get the widget like that

[gentle urchin]

you cant

widgets are not actors

[lofty rapids]

your calling the function on the actor you got, not the widget

[agile moss]

ok, so how do I tell the widget my player health?

[blissful willow]

Check the tutorial carefully, make sure you've not missed anything

[lofty rapids]

i don't use interface i have not learned them yet

i just set the values from the character with a reference

[agile moss]

I did the same, except he lauched his character when touching something

[lofty rapids]

but he probably put the function on the character right ?

and then got the actor, and called it

you put it on the widget

[agile moss]

I have been trying to understand interfaces for the last 5 hours 💀

Also I have only get all widgets of class, not get widget of class

[rich ferry]

What's the issue, they're pretty straightforward. A set of functions you can put in multiple classes.

[gentle urchin]

Interface is a method of sharing functionality/events between otherwise unrelated classes

Many tutorials abuse it to avoid casting, but often do so much else wrong that it's pointless

[blissful willow]

An example of a use case for an Interface is to call a common "Interact" function when you press a key, but what Interact function does on each object is different depending on how you use the function from the interface

[thin panther]

class agnostic behaviour is what I like to use to describe it.

You don't care what the class is when you use an interface, nor what the call is doing, you just care if it defines this behaviour

[gray ingot]

@gentle urchin This is great 🙂

[rich ferry]

seconded

[rich ferry]

what unholy hell is this

[gentle urchin]

ugh

[gray ingot]

xD

[gentle urchin]

shivers

[agile moss]

Jesus Christ

[gray ingot]

But it works!

[gentle urchin]

Well, that's something I guess..

[foggy oxide]

I was attempting to create a target lock system, but I encountered some difficulties with target switching. While I managed to lock onto the target in front of the player character, I couldn't figure out how to switch targets left or right based on player input. If anyone could assist me with the logic behind this, it would be greatly appreciated. I am using Ue 5 Bp

[blissful willow]

Is that a zoomed out switch board?

[rich ferry]

editing that code be like

[subtle mist]

hello guys.. i have a video playing in a widget.. I want the player to have the option to make it fullscreen while he is watching it.. how can i make it fullscreen during play by pressing a button?

[rich ferry]

That's what the code is for??? lmao

[gray ingot]

Yeah)

xD

[blissful willow]

There ain't no way 😄

[rich ferry]

I'm sure there's a specific node for it, you can either google or ask #umg for UI questions

[lofty rapids]

i wonder if you just ran one event, and passed it the current one in array, if the timeline would still work
latency is all new to me

[subtle mist]

can't find anything.. the only thing about fullscreen that i find is for settings for the game which i don't want..

[vernal snow]

Howdy all,
So, been trying to work on a general use weapon system for my own personal use, allowing throwables, projectile weapons etc etc.
Using structures as a base container.

Now currently i've been having issues with doing throwables where it spawns in and with the base speed it should go at said speed - it currently doesnt go at set speeds
I managed to do it before but changed something without realising and it kinda broke it.
I've messed with some collision settings, object types (made a new object type channel called Projectile set it to that).

Just kinda stuck and not sure where else to go any help would be appreciated.

1st image should be how i spawn in the throwable object, setting its variables and setting off the Set up Function (For clarity sake i put it there).
2nd image is the set up function in the throwable object.

[gray ingot]

I don't think i want to touch this code)

[blissful willow]

@foggy oxide Shift enter for a new line 😄

[foggy oxide]

haha my bad

[blissful willow]

You are setting Initial Speed to Max Speed. Is that accurate?

[vernal snow]

Max speed sets initial speed yeah ^^.
My line of thinking was "If max speed limits initial speed better set max speed first than initial speed"
Currently they'll equal each other for testing purposes

[blissful willow]

What are you actually getting when it spawns?

[agile moss]

Hey still can find my way around interfaces. Can anyone dm me a picture of a health float stored in the player which sends it to the interface which sends it to a widget? Please?

[vernal snow]

The Structure from a data table which has nested structures within it (Throwable stats being one of them).

I know it works because its setting the meshes as what the structure is telling it to, alongside the same set up for regular projectiles (bullets E.G) has it working fine.

Currently the force value is about 90000 for testing purposes but its acting as if its set as 0.

[blissful willow]

So it just drops the ground in front of the player?

Can we see the code where the speed variables are utilised? I only see them being set

Is it because you're doing the Set Up function AFTER you've already spawned it?

[vernal snow]

Yeah just plops down, does everything else it should like blow up (intention currently is for a grenade).

Well its using the projectile movement comp - which as far as im aware i dont need to do much else to do, im basing it off that because my bullet system is the same set up but moves and performs as it should.

The set up was on Construction script, on event play etc.

[foggy oxide]

Hey!
I am working on a target lock system. I was wondering how Do i determine if a target is on the left or right side of the current chosen target. for now what I have done perform a sphere trace in front of the player and the closest enemy to player will be the the target. After that on pressing a button I'm performing a line trace of all the in the actors found in the sphere trace. I was wondering how do i determine if the characters are on the left or right of the current target locked enemy

[vernal snow]

i've messed around with its order but doesnt seem to effect it.

[lofty rapids]

you also don't need an interface, you can use the reference and get the variable, then set the value. i imagine you want to display the health ?

[lofty rapids]

maybe dot product might help

[agile moss]

Yes I want to display the health, but I want interfaces since I will add more variables later on

[lofty rapids]

you don't have get widget ?

or do you have a reference to your widget somewhere ?

[blissful willow]

@vernal snow Try using your bullet mesh but with all the other stats the same and see if it works. It might be a mass / weight option for the meshes you're pulling from the struct for the nade
I was doing some physics stuff recently and even setting the force value to the highest setting did nothing if the weight wasn't properly setup on the mesh

[lofty rapids]

https://www.youtube.com/watch?v=G_hLUkm7v44

[foggy oxide]

dot product of what?

[agile moss]

thanks

[foggy oxide]

all the actors found in the sphere trace and ?

[lofty rapids]

the two right vectors ?

[foggy oxide]

the problem with using right or forward vector is the enemy is facing in different direction then it'll cause problems

[vernal snow]

Just tried it, and it still plops down

[foggy oxide]

https://blueprintue.com/blueprint/f2ahj3aa/ till now I have done this

[lofty rapids]

so it's checking scanned enemies, and picking the first one thats not selected ?

or actually the last one

one way possible help would be to get closest based on distance

[foggy oxide]

im doing this when i want to switch the target. I just making sure that i ignore the character that im currently locked on to

Instead of right vector i can use the normal

It'll return the coordinates of where the line trace hits the enemies

[blissful willow]

@vernal snow Sorry this is all just debugging stuff I'm suggesting, but my next step would be to print the speed variables to check they're being set as expected

[lofty rapids]

ya make sure you struct has the right values set in the variables

debugging can be a pain in the ass, but it's essential

[lofty rapids]

if you leave the variables as default what happens, does it work correctly ?

[agile moss]

https://tenor.com/view/xowillow-ok-gif-25585293

Maybe next day

[vernal snow]

Debugging wise it prints out the variables i set the Datatable to it.
0 it printed out its speed as 0
999999 it printed that out.

If i remove the variables and just use the Projectile movement comp default speeds they work

[blissful willow]

Maybe use the default speed, get the value, then try setting your own variables to the same as the default speed - just as a sanity check

[hoary summit]

When I play an anim montage assigned to the upper slot my weapons don't move with the animation. Does anyone know why this is happening?

[vernal snow]

Currently im gonna try and do a Class select and than set it up because in my experimental project the current set up works, change the datatable values and it changes the speed they come out
so 1 makes them flop down
and 99999 makes them zoom out

[kind estuary]

The AI controller doesnt accept a PlayerState by default.
Instead it has this silly option to get it :p
I read this has something to do with player state being replicated. Though my game is not multi.
So my question is, do you use PlayerState on AI Controller?
I normally store variables such as player health, and ammo in the player state.
Where should i store instead? In the player pawn?

[obtuse mulch]

Usually ParentAI class lol

its always assumed that there will be more than 1 ai of same type so why save stats in external bp?

you dont want your ai sharing stats

[kind estuary]

Ah. Well my problem with the AI controller class is that it is not shared with the Player controller

So lets say in your AI controller you have function to move, function to attack automatically etc

then you will have to copy these functions in the player controller...

[obtuse mulch]

thats how it goes 🤷‍♂️

[kind estuary]

Wouldnt it be better to do all of this in the pawn?

Then you can use inheritance better?

[obtuse mulch]

i prefer keep the player and ai separate

unless you posses them ingame

i guess you can have the same controller

[kind estuary]

yeah... so you duplicate all the functions?

Move, attack, heal,

All of these are necessary both in the AI controller and the Player controller

plus the Player controller might benefit from using certain AI functions

lets say you want to leave your pawn automated as an AI

Í think Player controller and AI controller should have the same parent class

but well

[obtuse mulch]

you doing something like bauldurs gate?

[kind estuary]

no. im doing a strategy game

[kind estuary]

but this is not possible

they are different

so we cant share controller with ai controller

and player state is not normally used for ai

so we must do our logic in the player pawn, create then an AIPawn and inherit it from player pawn

i think this is the best

[obtuse mulch]

yea do the heals and stuff in the parent pawn

[vernal snow]

@blissful willow
Hello, first of all thanks for the attempt at helping!

strangely, atleast to me, i found out why it wasnt working - and it was because the static mesh was set to simulate physics.
Not to sure why that had the opposite effect! but to let you both know!

[true marsh]

Randomly my grid lines appear to be less transparent or... more bold. Despite not changing any of the grid line settings, is there something else that could be causing it?

I'm recording content and don't want it look different half way through footage

[marble tusk]

I have the same problem and I'm not sure how to fix it. The problem is the grid lines are now two pixels thick instead of one, but there's no setting I could find to change it.

[true marsh]

@marble tusk atleast I know its not just me, and I havent changed engine versions for my current project

[marble tusk]

This is when it happened to me and I tried to ask around for a solution #ue5-general message

[true marsh]

Did you recently update nvidia drivers at all? Cause I did, only thing I can think of atm

[marble tusk]

I don't remember to be honest. It was over a month ago

[true marsh]

hmmm weird

[marble tusk]

I think one thing I remember doing at the time was downloading a plug-in from the marketplace, but I didn't think it would be the cause as I didn't enable it

[true marsh]

@marble tusk According to this thread it looks like its the gpu drivers (which makes sense to me since I did my drivers in the last few days):

https://forums.unrealengine.com/t/background-grid-in-bp-editor-is-more-prominent-visible-than-expected-thicker-lines/1375660/4

Workaround: Revert to older drivers ( I used 537.58)

Update: I've opened a case with Nvidia on this issue and noted it in the forum post.

[ember monolith]

I have a backing float whose value I want to default to NaN so that I can tell if it has been overridden somewhere.

float DefaultValue = NAN;```
Unfortunately in editor, if I try to change this away from NaN (for example, to 0), it always immediately resets itself to NaN. Any idea what's going on here?

[woven turret]

Bumping this question down if anyone has any idea 🙏
#blueprint message

[gentle urchin]

static or dynamic?

I'd think no in either case (i was wrong)

seems to be public in c++

what do you mean unable to access directly?

@woven turret

The code for setting shadow amount checks the following ;

    FORCEINLINE bool AreDynamicDataChangesAllowed(bool bIgnoreStationary = true) const
{
return (IsOwnerRunningUserConstructionScript()) || 
!(IsRegistered() && (Mobility == EComponentMobility::Static ||
(!bIgnoreStationary && Mobility == EComponentMobility::Stationary)));
}

[lofty rapids]

#cpp most likely

[subtle mist]

hey guys.. How can i make a video in a widget fullscreen during play by pressing a button?

[junior solstice]

So I have a working pickup system which is used by pressing ‘E’, and I wanted to make the game so when you pick up a flashlight you can turn it on or off when you want but this function won’t work because I can’t properly reference one blueprint from another since I’m new to UE5, I need to put something in the target for the FlashlightOn function in BP_PMH but I don’t know what or how, pls help 🙏🏼

[pastel garnet]

Hello, I am trying to use the player(and all the ability that comes with it) for a simple side project but I am finding it difficult to detect damage/other attribute changes from the enemy/bot AI i have created. take for example this zombie AI, i would like to detect when the AI health is changing and possibly kill the AI or do whatever. but I cant find a way to do it. This is also a problem when i just want to make any actor that react to being damaged from the gun/grenade etc. can somebody please point me in the right direction. I have applied a screen shot of the AI bot base class, is there a specific component or way to approach AI enemy/bot. keep in mind this game really isn't a multiplayer project and requires me to place enemy at specific location to elicit the emotion I intend.

[late cave]

There's no way to get a true global variable in Blueprints, is there? Like, something which can always be accessed even from within a Blueprint derived from Object?

[lofty rapids]

idk about derived from object, but you can create a getter function in a blueprint function library

where you can access from anywhere, idk where you can't access it from

[late cave]

what do you mean by getter function? as opposed to a setter?

[lofty rapids]

i just mean a function that returns a value

maybe from a variable or something

same thing as a variable basically but the function just returns it

you could even make it pure

[late cave]

but that's the opposite of what I was asking for! I want a global variable not a function... I want to store data

[lofty rapids]

ya a getter and setter

i mean it's way to have a global

[late cave]

but doesn't any variable in a function library get garbage collected after the function returns?

[lofty rapids]

you can store it in the game instance

or just use the game instance itself

anything i consider "global" is usually on the game instance

because it's easy to get to from just about anywhere

[late cave]

you can't access the game instance from a blueprint class derived from object

[lofty rapids]

damn, can you get actor of class ?

maybe like a manager, an actor that you place in the level ?

[late cave]

I have several already, now I'm implementing something more abstract, yet persistent... but I guess I'm forced to bloat my game instance class even more 🫤

[misty spire]

does anyone know why the middle mouse button doesn't work here while the e key works fine?

[versed sun]

a button is a button not a key ?

you are looking for Key Down

[misty spire]

I'm stupid

thank you

[trim matrix]

I understand how to fix it, did you find the answer or do you want me to explain it to you?

here

[ember monolith]

I appreciate the info! That isn't quite my use case, it appears there are a few approaches and all of them involve moving away from using NaN as a default

[trim matrix]

Yea, honestly I have never worked with NaN and when I think about it, I find it kinda useless

I would just use a number that would never been used and use it has the default value...

[rich ferry]

Why isn't this change visible in viewport? Doesn't seem to work at all tbh.

[ember monolith]

Our problem was there is no number that would clearly never be used. It looks like TOptional is the best way to go for checking if a value has been set.

[trim matrix]

okay, good to know!

[trim matrix]

what's the spawn transform thingy and why is it on construct?

[rich ferry]

Spawn transform is just "blank", zero trans, zero rot, 1 scale

It's on construct because it should be visible in editor, the turret and drivetrain should be as if they were components on the tank itself.

[trim matrix]

Did you check if it was there a location 0,0,0

is the class valid?

you might have to change the collision handeling override to force it to spawn 100%

[rich ferry]

definately doesn't exist

[rich ferry]

Well I made it so yes

[trim matrix]

I mean, in the reference

[rich ferry]

Yeah it's just set by default

[rich ferry]

"Always Spawn" didn't help

[trim matrix]

if the actor isn't in the world, nothing will happen on construct I think

[rich ferry]

damn it

Guess I gotta go back to using child actor components

[trim matrix]

drag it in the world

to see if it work

[rich ferry]

Nah it's fine, that wouldn't help, that's not the way I want to do it. I'll just go back to using what worked before. This was an attempt to make it work better but no big deal if it doesn't.

[trim matrix]

oki

[thin panther]

Before you go using those project nukers, consider the prefabricator plugin

[trim matrix]

what's that

[thin panther]

Brings unity style prefabs to unreal

A pretty solid plugin

Removes basically all need for evil child actor components

[twin perch]

I think i am missing something i am useing the normal manny ABP and i make a notify with my animation
but the notification does not appear in the ABP manny

(there is another attack thing that i got to work with another animation but for some reason i cant get the new notification to work here)

[celest trench]

Why doesn't setting custom time dilation on the player controller change the character? Does it have to directly be ran on the character?

[fading sentinel]

hello, guys am trying to use, the Xlocation of a blueprint actor (a playable character, as he runs/walks) to drive the rotation of another blueprint actor.
so that as the character walks or runs the other actor will rotate on a certain axis

[fading sentinel]

i can share a video of my bluprint

[sinful bone]

Hey! 🙂 Tried to find a solution, found some (especially the delay one) but it doesn't work for me. So my problem is the following: I applied physics on my Static Mesh - works fine. Although, in order to be able to attach that object, I need to disable physics. Well, visually it disables the physics but still doesn't attach to my character (it applies "No Collision" as well). If I uncheck the "Simulate Physics" on the object in the editor, it works fine (so only the BP can be blamed). So my theory is that even if it disables the physics, some parts are still there which prevents the attach process. Does anybody have any idea?

[frosty heron]

They are different comp

if u want the character to be slowed down then do it on the character

[pine tangle]

Are different blueprints threaded independently of each other?

nvm looks like it's all on the main thread

[floral totem]

Has anyone done circular character movement? A friend and I just spent like 3 hours to get it to work and we just can’t figure it out. For context I am trying to make a tower climbing platformer where the player character is a 2D sprite climbing a 3d tower. But we cannot figure out how to constrain movement to a circle around the cylindrical part of the tower.

[pine tangle]

How good is your trig?

[floral totem]

I’m very entry level lol

[pine tangle]

sorry, trigonometry, maths

I know this is a pic from blender, but this is how you want the movement to work?
https://i.stack.imgur.com/Oj5zc.png

[floral totem]

I just mean I haven’t used it within unreal, I know if I can use a sin for my x and a cos for my y I should get a circle but I have no idea how to implement that within blueprints

[pine tangle]

To follow the spring looking curve

let me open up the blueprint editor real quick since I get it and hte material functions mixed often

[floral totem]

In a sense, just without the curve. I want to character to move around the cylinder and jump.

[pine tangle]

oh sorry, the tower part confused me

[floral totem]

I’ve tried using a spring arm but it doesn’t like the jump

The idea is to climb upwards tho, just not in a set direction

[pine tangle]

like you just want the coordinates warpped

though*

do you want the path that leads up the tower to be controlled by a seperate collision or the path?

[floral totem]

https://x.com/neutronized/status/1765283535441580346?s=46&t=izv_hkw-3bHdaA2K63bZGg

Neutronized ✨ Get Shovel Pirate on Steam! (@Neutronized) on X

explore a tower 🌱✨ #cozygames

Twitter · Mar 6, 2024, 7:49 AM

This is what I am trying to emulate, I saw this online and was very inspired

[pine tangle]

and your platforming is currently unreal engine physics based?

[floral totem]

Yes

[pine tangle]

kk gimme two secs here while my project opens

[pine tangle]

It sounds like you are mostly there

[floral totem]

I really appreciate your input!

[pine tangle]

I guess one thing that also does matter

is this tower level independent or does it connect to an otherwise linear track

[floral totem]

So the idea is to be almost metrodvania you can move both up and down the tower. The game will be one continuous tower.

With different sections

[pine tangle]

ok but no jumping off, you're stuck on the merrigoround so to speak?

[floral totem]

Correct

[pine tangle]

beaut, alllmost done opening my project haha

[floral totem]

I tried to lock the character onto a spline but it seems like it would make things like wall jumping and air dashes tricky

I would rather move a little more freely but still constrained to a circle

[pine tangle]

sampling a spline or curve isn't terrible, but you will get much better scalability with juts a direct coordinate conversion

not sure if you plan on having 1k+ moving objects on the tower at once, but it will make some difference on the CPU, maybe important if it's mobile

@floral totem Ok so the collision for your movement is managed via the physics, is the movement force based though?

or do you have your own velocity and position setting system

[floral totem]

I’m at the very beginning of this project so it can be whatever it needs to be for this to work. Most of my games I’ve made have used pretty generic 2D and 3D templates lol

[pine tangle]

ok, I'm not too familiar with the internal physics system and I'm just moving to unreal

[floral totem]

I’m currently using the third person starter project

And paper 2d for my sprites

[pine tangle]

but I imagine that will be a bit more fickly and gimicky to wrap around unless there is a coordinate lock to a curve that I'm unaware of, and that can't be very cheap at scale

if you keep your own position and velocity variables in your blueprint that will make this much easier

so that your input can affect these pseudo states before being mapped to a position override on your actor

It looks like in blueprints they are called Vector2D

[floral totem]

Since it’s a 2.5D game I’m hoping I can have an easier time managing the scalability with master actors and passing in a much as possible to templates. The only 3D component to the game is the tower.

[pine tangle]

either way, the blueprint will effectively be identical

just making one up now

[chrome crag]

Question! I have a moving platform Bp with interp to movement in my level. When I put it in the level sequencer and try to move it with Transform via key frame it doesn’t move. Does the interp to movement not work well with the level sequencer stuff?

[frail onyx]

Anyone know how to get my arrow component to rotate with a poseable mesh bone i have rotating?

im trying to shoot a bullet from the arrows location

so i need to be able to rotate with the bone i have rotating

[pine tangle]

@floral totem

If you've got your coordinate conversion correct you should be able to fill in that blank

or did you want that part too haha

[floral totem]

You mean the coordinates created by the sin and cos?

[pine tangle]

correct, and you will only have one input as your β if I recall

well you definitely will since you only have your x value haha

[floral totem]

I would very much like to see how you get those coordinates with blueprints but I am thankful for whatever you are able to provide.

[pine tangle]

https://matthew-brett.github.io/teaching/rotation_2d.html

[floral totem]

I will check these out, I haven’t done trig since college lol

[pine tangle]

You just need the Theorum

[floral totem]

I like that this allows me to have thicker and thinner portions of the tower

[pine tangle]

I want to say you just 1 the x1 and y1, and then x is your β , but also preoccupied atm

[pine tangle]

@floral totem got it sorted?

[undone bluff]

you could make this a 2d game and fake all the curvature with a shader, to go fully around the tower you'd just have another copy of the level at the edge

might be tricky if you want a tower as thin as the one in the pic though (not sure)

just throwing that out there

[pine tangle]

just multiply the x and y after before applying to the pos

[loud vessel]

Hey, is there a way to ONLY disable keyboard inputs, but keep the mouse input?
Basically, I want the character to not be able to move or interact or literally anything (No keyboard key allowed), but I also want to look around with my mouse.
is this possible?

Also, assume I already have a system where several keys are used, and I want them all to be disabled quickly.
I'm aware there is "Disable input", but it disables both Keyboard AND Mouse. (I want the Keyboard only to be disabled)

Please @loud vessel me if you know the answer. (so I can see your message)

[silk cosmos]

Are you using enhanced input? You could swap out your mapping context

[floral totem]

I had considered that path but I really like the juxtoposition of the 2.5D look

[undone bluff]

oh it could have depth to it, I just mean functionally 2d

[floral totem]

I sent you a PM! hopefully I can get it working soon!

[floral totem]

Id be very interested in learning about this, do you have any resources I could look over?

[undone bluff]

https://youtu.be/VCmDwfMz-jk

sending this one because I saw there's a part 2 for a cylindrical setup

it's fairly simple and the benefit is you actually have a flat world you can treat like any regular 2d game

worth at least giving a shot to see if you can get the results you want

[pine tangle]

That will cause issues on his seam since he is using the default collision system

but elsewise a good solution especially if you want a non Euclidean cylinder

and you probably could do some hacky double collision force addition between both sides

or I guess it makes more sense to load a duplicate level section rather than the active body derp lol

@floral totem if you are actually using the physics forces for movement and not just collision it might be worth the extra work to do it in shader since then you wont ever end up with consistent or constant forces pushing you against the coordinate snapping (not a huge issue but will make keeping the level layout consistent difficult and you basically won't ever hit a hard stopping force that doesn't partially deflect, only to be corrected. With having custom local variables for those things like in the BP screenshot I sent earlier it wouldn't make much sense to have it physically driven on Unreals side

[gentle urchin]

Would you even need a duplicatelevel? Couldnt the level just be slightly bigger on both edges,with a tiling look or smth

[pine tangle]

you wouldn't duplicate the whole level, you just need a small section to be sampled from your level data for when you cross the coordinates boundries to wrap back

the size would explicitly depend on how large the collider is on your character if you want the most efficient and seamless (on the physics side) solution

this is only in the case where the level data is 2d though and reproject in shader

a spatial array of hash buckets or ID bins at a resolution just larger than your furthist possible collision point from origin, and then if you want to be a little fancy for needless performance, have the spatial array oriented Y, X