blueprint

[simple echo]

Hey y'all, really basic question.

I have actor BP A and Actor BP B

How can I destroy Actor B when Actor A collides with it?

[faint pasture]

What's the actual criteria, the class of the actor that hits it?

[simple echo]

essentially I want to destroy an enemy on hit with a thrown weapon

[untold fossil]

Here's the code and the result. The code is 100% the same as from a tutorial from a dude for who this works perfectly fine. But for me, it's completely fubar. No idea why. Can someone help me?

[faint pasture]

Detect the hit in the weapon, cast the other actor to EnemyClass(to detect if it is an EnemyClass) and if so, destroy it.

But that's not a great way to do it, you typically want a more generic interface like an actual interface or the built in damage event in Actor

[untold fossil]

(don't mind the yaw, forgot to plug that in, issues remains the same regardless)

[harsh coral]

Ok, so, maybe not directly blueprint related...but I can´t figure out how to save an animated morph target sequence. I created an animation blueprint for one of my skeletal meshes and I can animat the morph targets in sequencer, but I can´t figure out how to convert that into a reusable animation asset...
Is that even possible?`Or do I have to somehow recreate that animation sequence directly inside the animation blueprint?

[faint pasture]

@untold fossil just make rot from ZX

[untold fossil]

Ok and Z is up and X is forward?

[faint pasture]

Yes but the z should be the normal

You're saying "gimme a rot where this vector is the up and this vector is the forward"

[untold fossil]

Ok yeah that works

wow

thanks lol

brilliant 💖

😙 👌 my man

[gentle urchin]

Now add IK to each leg 😄

[untold fossil]

haha yeah I might xD

[harsh coral]

Gah. Why is this so hard...
I´m just trying to either create an animation sequence with morph targets animated or directly edit an animation sequence, but if I export an animated sequence using the Animation blueprint, it only exports the default pose animation, NOT the animated morph targets...
And I can´t add any tracks in the animation sequence editor either...

[rotund fern]

hello~
Okay so, I'm making a nice little game and part of it involves a SETI-like antenna.
The idea is that a point is chosen in 3D space and every antenna turns to point to it:
first on azimuth - turning on the Z axis a little at a time until it's correct
then on elevation - turning on the Y axis

I'm not fully sure how to make this work well, as the current version is very broken

What I've tried: [written code-like here, but implemented in bp, also shortened]

1. get the direction vector, using atan2 for both Y and Z axes
2. set variables targetAzimuth and targetElevation and isMoving=true
3. in the Tick event, if abs(currentAzimuth-targetAzimuth)>=moveRate set world rotation.Z to current + moveRate*deltaSeconds*(currentAzimuth-targetAzimuth < 180 ? 1 : -1)
4. else if abs(currentElevation-targetElevation)>=moveRate set world rotation.Y to current + moveRate*deltaSeconds*(currentAzimuth<targetAzimuth ? 1 : -1)
5. isMoving=false end

As it is implemented here, it sets the target vector to [90,-90,0] (pointing straight up) for some reason, instead of what I needed. I visualized it as an arrow and expected it to point it towards me (testing vector is player actor location)

the movement itself almost works, turning on the azimuth fairly correctly, but the elevation messes up (will upload a video as soon as I get the chance) and twitches -180->180 over and over.

Please advise ❤️

[gentle urchin]

Sounds like a gimbal lock

Combining rotators have for me atleast been better at avoiding those, than anything else i've tried(except quats)

[thin panther]

that's because the combine rotators node just multiplies the quats :D

[versed sun]

I like using Scenes in BP
only change the Z Rot on the Z Rotation Scene, and only change the Y Rot on Elevation Sceneon

[gentle urchin]

I was guessing thats what it did but never checked 😆

[gentle urchin]

This looks costly if it had more componentd to it

"Costly"

[steady night]

hmmm this is the end of my linetrace but i would like to include the x rotation also

up/down rotation

[old frigate]

Hello everyone, I want Timeline to call the function ResloveMovement after it ends, but I found that it has a delay of nearly 1 second. I don’t know what to do. After my many investigations, I am very sure that the problem occurs in finished. I hope you can help me. Answer, thank you

[spiral fox]

Guys do you have any idea how can create this system?

[jagged moss]

when trying to recreate this with a FPS character in a new world I struggle to get the "get controll rotation" to work with the fps character

[random pulsar]

i want to make a cutscene where in this server i can ask about it?

to get more detail

[jagged moss]

maybe ask in UE5 general?

[gentle urchin]

I bet your internal timeline duration is longer than your planned speed period

[spice viper]

When you open the timeline, it's not just the duration float at the top. It's the start stop of the graph as well as play rate

[dry sleet]

probably #sequencer

[gentle urchin]

Duration >! stop of graph

Duration defines the completion , and stopping of the timeline afaik

[frigid summit]

hi guys
why cant i add timeline to sequencer event in unreal

[lofty rapids]

sequence "event" ?

[gentle urchin]

Not dure why there would be a timeline in a sequence

But i guess there could be a use case for it...

[frigid summit]

no sequencer

i cant add it here : (

[distant estuary]

I currently got a system were It would just teleport my actor to a line trace based on the mouse screen position. Now I would like to adjust the location so that the mesh would never intersect with another one, even when rotating it. Does anyone at least got a rough idea on how to solve this issue?
I thought about finding the lowest point of the block mesh and just offsetting the final position based on that but this still wouldn't solve the issue were the block would intersect with the walls

[versed sun]

I never got around to messing with it yet , but i think you want Sweep

make sure the mesh is the root, or have a collision box the size of your mesh as the root

[hidden pecan]

When I try to open the default unreal walk animation blueprint unreal crashes this is version 5.3.2 by the way

[frigid summit]

try 5.2 it not crashes too often i tried 5.3 and i back to 5.2

[hidden pecan]

Okay do you know if that would break anything

[lofty rapids]

you mean the one that comes with a template ?

[distant estuary]

The problem with sweep is that it would just refuse to move at all when overlapping with a object, but the expected behavior would be that the object would slide at the wall while not intersecting

[frigid summit]

no not really

[lofty rapids]

you can't downgrade a project

atleast as far as i know

atleast its a possiblity things'll break

[versed sun]

ahh , bummer
Could you have a separate collision on each side, slighty outside the mesh
If that side is colliding, disable movement in that axis direction ?

[keen gulch]

How do you add delay to a for loop in a widget ?

[drifting mango]

is beautiful

[undone bluff]

iterate through the array on a timer

[versed sun]

like this

[keen gulch]

thanks will try that

[hidden pecan]

Yes

The first person template

[keen gulch]

how to get the current position you are on in the loop?

[versed sun]

i just got the first item in array , used it, then removed it
next loop the former 2nd item is now first

if you want to do it again , reset Strings

ahh , you need the index to feed something else

[quiet token]

https://cdn.discordapp.com/attachments/786009879294377995/1212491131716239400/sspline_switch.PNG?ex=65f2075c&is=65df925c&hm=04e329c92ffe73f208541fe720d2b96bbba68a481728bd240f0c28725d351c55&

Hello Everyone. We tryin to make a Train with front and backwheels that change splines at certain places on the map. Its workin fine so far, but the wheels distance changes slinghtly with every splinechange. Its not noticable in lower speeds, but at higher speed u start to see the wheels distaince gettin bigger and bigger until they exceed the trains lenght. What could be the problem?

[versed sun]

try this

[keen gulch]

yeah one sec

[hollow karma]

Are there any blueprint nodes for sorting an array?

[lunar sleet]

No, c++ has TArray:: Sort tho

[hollow karma]

Yeah, but I'm trying to make an example of usage for something using blueprints only. Oh well. Time to make that college data structures and algorithms class pay off!

[calm slate]

Hi everyone.
I'm trying to make a character to look at a camera actor(not the player), but i don't know where to start. i have some knowledge on environment, lighting and so on, but i totally lack on programming and blueprints, and tutorials aren't helping since i can't find one specifically about what i'm trying to do

[wispy badger]

Any help? BP doesn't want to fade my screen and my camera stays in default (0,0,0) position (I spawn the player after an intro "cutscene")
Blueprint: https://blueprintue.com/blueprint/e3tz9_fc/
(sorry its all packed up ;/)

[lunar sleet]

Did you make an actor with only a camera in it ?

[calm slate]

uh no.
i have a character blueprint (not the player) and i want its head to follow a camera that i placed in the level 😅

[lunar sleet]

Ok, well make an actor or pawn given it’s a camera, put a camera in it with a spring arm if needed. Delete the camera you placed. Drag that actor from content browser into the level

[gentle urchin]

When you switch

You dont retain the overshooting value

So the gap keeps increasing

[lunar sleet]

From there you have a couple of choices. Either 1) put the code in the char bp and if you’re only ever going to have one of these cameras you can use get actor of class, select the bp you put the camera in, get actor location from the return value, use find look at rotation with start being the player’s loc and target being the cam’s location, and that will give you the rotator to use in order to face the camera by rotating the head. Or 2) put the code in the camera, use get player character, cast to your char bp, do the same thing but with reversed start and target @calm slate

The 2nd option is prly better if you’re going to have multiple cameras and want to reuse the same event with different instances

[quiet token]

Would you be so kind and explain more detailed what u mean by Overshooting Value?

[calm slate]

Thank you!!
I'm really new at blueprints and programming in general. so quite confused by it.
I did a few looking at tutorials, but didn't really figured out this one

[lunar sleet]

May want to look up “your first hour in Unreal” on the Epic learning portal and then watch the bp live comms video pinned here in the is channel (2nd to bottom)

[gentle urchin]

You basically (likely) want to retain the remaining value of the backwheels from the start of the new track

So if backwheel is at 1050

And spline is 1000

You want to switch at 50 on the new spline

Something like

If backwheeldistance >= splinedistance
Then
bakcwheeldistance = backwheeldistance - splinedistance

[calm slate]

thanks
as of now i'm trying to obtain that result, and go on after that

[quiet token]

Thank u very much, i think that might be the issue. We'll try it out immediatly!

[quiet token]

Problem solved, can't thank u enough! Thanks again ure the best.

[gentle urchin]

I would think relative wheel placement was more crucial than separste tracking tho

So backwheels should be 100% depending on front wheel location

And simply be a fixed offset from them

Depending on the spline and curves it might not be as simple as that ofc

[vale pine]

Every now and then, I have a Child Actor Component in a BP class, and it somehow becomes its own independent non-child actor in a level.
So, there is a duplicate Actor instance in the exact same location as my Child Actor, which often goes unnoticed for quite a while.
I can't figure out what circumstances lead this to happen. It seems to relate to me messing with the base classes, SOMETIMES, but not always.
I know the lesson here is "don't use child actors," but has anyone run into similar issues and have been able to reproduce the problem consistently?

[snow jackal]

I'm trying to have a setup as such for a Niagara beam : blueprint actor1 start of the beam, blueprint actor2 end of the beam. I try to reference my actor2 in my actor1 to send a user parameter value in Niagara, but it does not work. When I send a value from a cube inside the actor1 blueprint, it works though. What am I missing?

[flat coral]

Is there any way to set the variables on actor COMPONENTS via the data-only blueprint editor? Or should I just give up and use the full thing?

[velvet pendant]

Hey guys,

I have a little problem, can you please hel me out? i can't figure out why get actor location dosen't share the precise location..

ex:

[hollow pond]

you're moving a component of the actor, not the entire actor

[thin panther]

there's also the consideration that you're performing a latent move multiple times between ever changing distance

get actor location is indeed sharing the precise location, there is no way it couldn't

[mild valve]

What you have done, now I spent whole day learning about C++ and even did my first function, exposed to blueprint and found out that it's indeed works like a charm with looping through 10 000+ items. Now my world is ruined, I need to learn more 😄

[atomic light]

Hey im back with my balls and i think im observing something going wrong;
with these nodes I fix their speed based on the initial impulse they get so their velocity remains constant
but should the spheres, due to collisions, be launched upwards, this constant upping of their velocity makes them counteract gravity too heavily and they easily fly away, its like propelling them upwards
whats the logical course of action here? im thinking that i should not be touching/fixating the z vector at all, so that all Z movement is purely off of collisions but im not sure how to constrain that

something like this maybe?

[desert juniper]

C++ for all things perfomance and architecture related, blueprint the rest for convenience 🙂

For instance: All my base classes, structure, enumeration, etc are written in C++. All my individual item logic and abilities are written in BP

[rose helm]

I have functions in C++ that get called in C++, but I want to perform some extra code in blueprints. Is this possible?

[mild valve]

yep now I can see that, I want to slap me 10 years ago when I first encountered UE4 and started learning it to say "learn C++!" 😄

[spark steppe]

https://shahriyarshahrabi.medium.com/using-blueprintnativeevent-with-inheritance-for-blueprint-and-cpp-configurable-functions-25ce94e20f34

[desert juniper]

C++ is such a hard language to learn, that I’d honestly recommend starting somewhere else first. Like C# or Python,
But if you already have a solid programming understanding then C++ is a great progression.

[mild valve]

well I have a background in other languages so I understand a bit, it's kind of feels overcomplicated to me, where you just need to write down so much stuff. Glad that tools like chatGPT exists, really can help. Need to recheck of course but really helps

[desert juniper]

Ah like boilerplate. Yeah unreal can be boilerplate heavy

But that’s just because they’ve optimized the hell out of engine

Imagine how much more you’d have to write if it weren’t for the unreal specific macros

[mild valve]

yeah I do understand that it's not something that was created just for fun. I don't even understand what sizes of the head of those guys who actually created it, it's so god damn massive

[desert juniper]

Quick tip to add to your pocket. I like phind.com
It’s up to date, and programmer oriented.

[mild valve]

thank you! Noted 🙂

[gentle urchin]

Wuhu! We saved 1 fellow programmer today 🙂

Now you also have the full power of the engine, customized details exposure, new datatypes, increased network control, and so much more!

[spice viper]

Anyone know how to get the current LOD for a Skeletal Mesh? I tried this, and no no matter which LOD is actually used, how many LODs a mesh has, or what the LOD Colorization view says... it's always 0

[gentle urchin]

Probably c++ only

[gentle urchin]

So perhaps its time to dip a toe in 😎

[neat lagoon]

Im currently trying to make my lego car move left and right, but with a little bit of torque so its not so snappy. Not sure how to write the blueprints at all though as this is my first project. The car a pawn btw but its what the character controls when u play the game. Any help?

[trim matrix]

lmao, you want everyone to try C++

[lunar sleet]

A little bit of C++ is good for everyone

[lunar sleet]

Prly best to use the vehicle movement component. There’s a car template you can build on

[neat lagoon]

I think this would be better for what im trying to do

im basically going to make an infinite runner type of game

all I need is the car to be able to move left and right to be able to move from each lane to avoid obstacles

this is what it would look like

just not sure how I can do that

[lunar sleet]

How are you currently doing it that’s too snappy?

[neat lagoon]

no I have nothing right now, was just saying that I wanted to do that if possible

right now im just trying to at least get the car moving left and right

[undone bluff]

super simple, when the player presses right or left, on event tick or using a timeline, interpolate the cars position to the offset needed to enter the next lane

[neat lagoon]

would it be possible for you to show me like a screenshot of what that would look like?

[undone bluff]

does the camera move with the car horizontally? if not I'd probably only make the car itself move and have the pawn stick to the center of the road

[neat lagoon]

the camera is connected to the car I believe, not really sure how well it will work once I have the car moving but I think it is

[wind badger]

Some materials are not working after I migrated from another project... any ideas?

[undone bluff]

get the cars current position and add an offset to it perpendicular to the street, then interpolate from the current to the target offset position

I mean it's just a static offset from lane to lane

use an integer or something to keep track of in which lane you are

left lane is 0, middle 1, right one 2

so you can check if the car can move any further once it's at the edge

you can get the car's rotation, use it to get the right vector and multiply that by the offset (distance in cm you want the car to move), then you add that to the current location and you got your new target location

[frigid summit]

nice song

[neat lagoon]

I think I sort of understand the idea, but if im honest with you like I said I have not much experience in UE5, so im not really sure exactly what that all looks like and how I would make all of those blueprints. I dont really know how to translate your words to the blueprints in UE yet.

[undone bluff]

in the last bit I explicitely used the names of the corrosponding blueprint nodes to explain it

get world rotation > get right vector > multiply

get world location > add

from current location and target location you have all you need to drive an interpolation which you can look into yourself

I'm off to sleep, good luck

[neat lagoon]

Alright, thanks for the help!

[gentle urchin]

To make it look more .. fluid

Id probably go with timeline

Adding some slight overshoot and rotations

[undone bluff]

When you set up inputs you should get a value of -1 for left and 1 for right, multiply that by the distance to move the car and then finally multiply that by the right vector as mentioned above

[gentle urchin]

Curves are nice for that

[undone bluff]

Finally add current location of car

And you have target location

Gone for real now

[celest sky]

probably an obvious question, but i couldnt find any documentation online: if i move a root component using "Set Actor Relative Location", does this also move any children components of this actor to their relative locations?

[undone bluff]

Using curves with tick is better but less convenient to set up

[gentle urchin]

For a while curves wherent even properly exposed to bp

[undone bluff]

I'd recommend using timelines too, just easier to get into

[gentle urchin]

Now they might be

[tough kiln]

Location is always relative to the parent so 0,0,0 = whatever their parent's location is (so yeah)

[celest sky]

But there is a difference between the Set Actor Location and Set Actor Relative Location nodes, right? I was under the assumption the Set Actor Location node set the actor's location relative to the world location, while the Set Actor Relative Location set the actor's location relative to the parent's location.

[tough kiln]

Yes but that wasn't your question. Regardless of in which space you move a thing, its children will move relative to it.

[celest sky]

gotcha, that makes sense. thank you!

on a similar vein, does the Set Actor Hidden In Game node apply to its child components as well? The comments on the block seem to imply it does, but with my testing it doesn't.

[grim crypt]

Is it possible to have an RVT volume in a blueprint? Trying to use RVTVolume child actor class component, but won't let me access things like settings the bounds for the volume or setting the texture through blueprint.

[stuck sentinel]

what in the world is going on

my third person mesh dissapeared

this is a new project all I did was add first person

next day i open it up and the mesh is gone

[slender dagger]

Can anyone help me figure out as to why I'm getting an unknown object reference added to my array when I'm only adding a specific reference?

[blissful summit]

looks like it got corrupted

property viewer doesnt show anything either, even more evidence that it is

[stuck sentinel]

so what do ido

[lunar sleet]

There‘s prly something already in overlapping actors

Also why not use get overlapping actors if that’s what you’re going for

[slender dagger]

get overlapping actors doesn't return any actors even though they're in the volume

[lunar sleet]

That just means you didn’t set up your collision properly

[slender dagger]

at begin play the array is fine, the problem happens when more actors are spawned

[lunar sleet]

Where is this code running ?

[slender dagger]

I mean both the volume and the capsule component are set to overlap for each other so I don't see how that could be an issue

[slender dagger]

in the same blueprint. I'll grab a ss

[lunar sleet]

That’s the only issue that it could be , other than them not actually overlapping each other

The function does what it says

[lunar sleet]

I meant like, on tick or a function called on a timer?

[slender dagger]

wave start is called at begin play and in the macro, both in the same bp. the check is called every time an enemy dies

here's the collision settings for both the detection volume and the enemy

[lunar sleet]

Hmm should work, in theory. If you use get overlapped actors with a print what shows?

[frail onyx]

Anyone know how to lock the cameras z axis when my 3rd person player is jumping? but it will still follow the z axis if i walk up a slope or stairs

[lunar sleet]

CMC -> if isFalling == true, cache current Z, get current Z, set as Z

[lunar sleet]

Do it on tick

[slender dagger]

weird. If I hook it onto begin play nothing gets printed, if I hook up to a tick it only returns the third instance

[lunar sleet]

You’re using for each loop print ?

[slender dagger]

yeah i wasnt lmao

Seems to print normally

[lunar sleet]

So it works?

[slender dagger]

not really. It's yet to add anything to the array when looking in the debugger

[frail onyx]

what do i use for caching the current Z/getting/setting?

and where do i plug the branch node into to make it work?

[slender dagger]

also still keeps adding the unknown class

[lunar sleet]

Try using a cast to the class you want to have, prior to feeding it to the array. If you’re doing it the other way, use an isValid check, tho tbh get actor of class should only return that

[lunar sleet]

Get the current actor location, split the pin, grab that Z and promote it to a variable to cache. Then get actor location and set it to the current X and Y and the saved Z. Now that I think of it tho, maybe do this when you first press jump (on started if EIS)

And then feed that saved Z until isFalling is no longer true. (Get the char movement component to get isFalling

You’ll need to test and find out what works best but isFalling is what you want for char being in air

[stuck sentinel]

how can i do this

[lunar sleet]

Crouching is part of the character movement component

[slender dagger]

still returns the unknown class after a single death. Whenever I use get overlapping actors it just doesn't add them into the array until after one has been killed

[lunar sleet]

Wait

[stuck sentinel]

im not using it

[lunar sleet]

What is death? Are you calling destroy actor?

[lunar sleet]

Yeah you are, you just don’t know it

[slender dagger]

that's the death code

[stuck sentinel]

bro

[lunar sleet]

A character class comes with a CMC by default. And if you’re going to have only one character just use get player char

Bro.

[stuck sentinel]

i dont want is crouching

i just made that since the tutorial guy told me but im using a different crouch setup so that i can add a timeline

so i want the crouching variable from the third person

[slender dagger]

do you not have a char ref set in the event graph?

[stuck sentinel]

no

how do i do that

[lunar sleet]

I don’t think you’re supposed to talk to the bp from the anim bp that way but iirc it’s try get pawn owner to get your char, then cast to that class, and get your bool

[lunar sleet]

Remove the destroy actor and see if Unknown still happens

Or

Just remove the index from the array on death

When you destroy an actor it doesn’t go away right away, it becomes an invalid ref that gets garbage collected later

[stuck sentinel]

what does that do

[slender dagger]

you only need the first 3 nodes from that

[lunar sleet]

I would cast to your actual char class not char in general but 🤷

[slender dagger]

I think this was off a template somewhere. but yeah do that

[stuck sentinel]

i dont have the first node

[lunar sleet]

Besides you’re not going to have that Crouching on the default Char class so that part won’t work

[lunar sleet]

Do you have TryGetPawnOwner?

[frail onyx]

did i do this correctly?

[slender dagger]

does it not come up on the search?

[frail onyx]

my character wont jump now so i think i did smth wrong lol

[stuck sentinel]

in the third person character right?

[slender dagger]

in the event graph of your animation blueprint

[lunar sleet]

Almost

[lunar sleet]

In the anim bp

[slender dagger]

excuse the shitty labelling

[stuck sentinel]

yeah i already have it

what now

[frail onyx]

do you know what's wrong?

[lunar sleet]

Leave the cached Z code where it is. Move the branch and the rest of the code to Triggered

[frail onyx]

oop

[slender dagger]

It doesn't look like your char ref is in the variables tab. You only have a single bool there

[lunar sleet]

Only issue will be if you release the button that will stop working, so maybe just move that entire code to Event Tick, except for the cached Z

[slender dagger]

oh wait

no just expand your references category and you'll see the character reference

just plug that in and you'll be sorted

[stuck sentinel]

this?

[lunar sleet]

Basically on Jump Started, save current Z. On EventTick, if char is falling use that cached Z

[slender dagger]

the one above it

[stuck sentinel]

no no

[lunar sleet]

@slender dagger did you get to try these? #blueprint message

[stuck sentinel]

i dont want the character movement component

i want my variable from the third person character

[lunar sleet]

Yeah they want a custom bool in their char class

[stuck sentinel]

whos they

[lunar sleet]

You

[slender dagger]

that's your character reference

that's how you access your bools in the anim graph from your third person blueprint

[lunar sleet]

Again, for that to work, you need to actually cast to whatever your char class is

Because you added that custom bool

[stuck sentinel]

i dont want this

i want this

[lunar sleet]

Cast to BP_ThirdPersonChar

[stuck sentinel]

i showed you in the beginning

didnt work

[stuck sentinel]

.

cast nor this one

both need execute pins

[lunar sleet]

That’s get actor of class

[frail onyx]

i just tried that but it doesn't seem to work, am i supposed to use set actor location or set camera location?

[slender dagger]

does this not work?

[lunar sleet]

Oh right your cam is a component on the char, I misspoke

Get camera, get/set world location

[slender dagger]

unknown still happens

[lunar sleet]

With no destroy actor?

[gentle urchin]

This be some interesting setup

[slender dagger]

yeah

[frail onyx]

So just replace all the get actor and set actor locations with set world locations of my spring arm for my camera?

[gentle urchin]

AnimBP is like UI

[lunar sleet]

Correct

[gentle urchin]

Mostly a slave to the char state

[frail onyx]

Ok thanks

[stuck sentinel]

i did that and it worked

but now i cant move

or the movement animation doesnt play

[slender dagger]

what does the rest of your event graph look like?

[lunar sleet]

So weird. At this point all I can suggest is use breakpoints and step through each node and each loop

[slender dagger]

honestly I might just use the screenshots I've sent in this and upload it as part of proof that I've attempted it. At least I might get a couple marks for it ig. It's not integral to the project anyway and it's due tomorrow at 5

[lunar sleet]

Ah ok

Be fun to find out wtf happened but yeah lol

[slender dagger]

Might give it one more shot with breakpoints but I'm probably gonna lose the flow going through all the for eachs lol. My lecturer might know if I show it to him but he's probably so busy atm.

[frail onyx]

I almost got it fully working but for some weird reason every time i jump and land my camera gets slightly bumped down a few units

[gentle urchin]

Just a little fyi. You can let the thing that tracks overlapped actors subscribe to the destroy events of the actors currently overlapping

Cleans up some logic

[lunar sleet]

In bp?

[gentle urchin]

Yeah

[frail onyx]

I used a print string to try and debug it by constantly printing the cached z location and it seems as soon as i hit space to jump it drops a few units and then when i land you notice that its a bit lower

[gentle urchin]

Its a regular delegate

[slender dagger]

like a dispatcher?

[gentle urchin]

Yepp

[frail onyx]

it also seems to drop about 3 units on the float i have printing every time i hit jump

[gentle urchin]

Keep in mind the nature of floats

Their accuracy is limited

Thats why you never do float === float

[slender dagger]

have a dispatcher where the check is called instead you mean? I'm a bit rusty with dispatchers tbh so I'm not too sure if that's how it'd work. Like I know what they do to an extent, but the main thing that I don't get with dispatchers is why you'd use them over interfaces and vice versa

[frail onyx]

Wait how do i make it work accurately with the way im trying to do it?

it all works perfectly just drops like 3 units every time i jump

[gentle urchin]

Dispatchers can be listened to by anyone , interfaces needs to implement the interface 😅

They generally serve a different purpose id say

Interfaces is for shared functionality amongst unrelated hierarchies of classes

While dispatchers exist to inform whoever cares about it

Be it UI or managers or you name it

[stuck sentinel]

how do i get character velocity either its moving or its not

[slender dagger]

so if you want an actor to only damage certain actors you'd use an interface whereas if you want an actor to damage every actor you'd use a dispatcher?

[lunar sleet]

What’s 3 units? Like goes from 10 to 7?

[stuck sentinel]

yo anyone how do i get velocity i dont understand this part

[gentle urchin]

Ive never considered dispatchers for damage tbh

[lunar sleet]

It’s been 3 mins lol, be patient. You seem to be getting velocity there, what’s the issue

[frail onyx]

Yeah like on the first jump it always prints out 111.64 and then when i jump next it goes down by 3 so 108.64

[lunar sleet]

And it does this with every jump?

Like lower each time?

[slender dagger]

is there not already a velocity variable in your movement component?

[stuck sentinel]

i want it so only if velocity is greater than 300/ walk speed allow branch for example

[frail onyx]

yeah

[stuck sentinel]

so if the guy is walking or running allow something else

[gentle urchin]

I use them for death events, inventory updates, quest events , component to owner comlunication

[frail onyx]

i did change it so i have a maximum of 2 jumps so i can double jump but i dont think that should be affecting it

[slender dagger]

yeah i guess that's true with the built in damage system. It's the only thing that came to mind but I think I'm getting what you mean. Could it be like health pickups then. if you only want team 1 to pick up you'd use an interface but if you want both teams you'd use dispatchers?

There's probably better ways, I'm just trying to get as direct a comparison as possible

[lunar sleet]

Not sure. What if you add +3 to the end result?

Hacky af lol

[lunar sleet]

So drag from it and use >= 300

But that’s a vector I can’t rmbr if you can use operands on it like that

[slender dagger]

should be able to.

yh you can

[slender dagger]

oh wait i must've misclicked

[lunar sleet]

Well you could split the pin and check X and Y, cause I imagine Z is irrelevant

[frail onyx]

hmm its weird though it goes down by a like different 3 point something each and if i try adding 3 and i spam jump before i've landed it keeps adding 3

[slender dagger]

wouldn't vector length xy work in that case?

[lunar sleet]

Yeah, no that wasn’t really a solution

[lunar sleet]

Probably? Doesn’t the CMC have a speed measurement or just max speed?

[slender dagger]

yeah max walk speed. That's what I used in my third person game

[frail onyx]

bro what the i just did my 2 jumps for the double jump this time and it just went up by 3 randomly and then up by 1 and then started going down by 3 each jump

its so weird

[gentle urchin]

You would use it in a global event manager that all actors may care about !

While you dont want your glibal manager to cast to every single type that may care, nor do you wanna chevk if every single class has the correct interface implemented

So you setup a dispatcher

[lunar sleet]

Could be some setting on the spring arm interfering maybe. Does it do the same thing if you just move the camera directly ?

[gentle urchin]

Global time manager

Like in zelda botw

Where npcs react to different times

And some other events get triggered at specific times

[slender dagger]

ok I see.

So if it was like a scale from focused actor communication to broad it would be cast/call the event directly -> interface -> dispatcher

[frail onyx]

yeah

[lunar sleet]

You can also try changing the relative location instead of world if not

[stuck sentinel]

yo which one is and + or

[grim crypt]

Are in-editor Scripted Actions removed in UE5?

[frigid summit]

good mornin

[lunar sleet]

I don’t think there’s an and/or

[stuck sentinel]

what do i do here then

[lunar sleet]

And Bool

[stuck sentinel]

what if im only walking forward

[slender dagger]

would this node not work?

[stuck sentinel]

the y would be 0

[frigid summit]

and or boolean

[lunar sleet]

Then do OR

[stuck sentinel]

what if im walking at an angle w and d

[frail onyx]

hmm when i use relative it just follows the player again

[lunar sleet]

Add another pin to OR

Where x+y = 300 , can prly just do x+y >= 300 and only have one bool

[lunar sleet]

Or try what Joe said above

[lunar sleet]

Le sigh, not sure what’s happening there. My guess is some setting on the spring arm

[slender dagger]

I think it would just be easier using the max walk speed tbh. If you have a blendspace set up which are really simple, they basically do all the animation work for you

[lunar sleet]

Prly, tbh I didn’t really see what the goal was

[frail onyx]

alr thanks for the help though! imma go to sleep but ill see if i can get it sorted tomorrow

[stuck sentinel]

will this work?

[slender dagger]

what happens when you test it like that?

[stuck sentinel]

i walk while crouching for 2 seconds then it goes straight to idle crouch

[gentle urchin]

Interface is mostly for directly aswell. But where there is no good hieriarchy for the shared functionality between classes

Like inventory items and... static scenery and.... chests

Dispatchers are broadcasts,

Where anyone can subscribe to the broadcast

[slender dagger]

yeah I think I get what you mean. Like you can't really make any of them inherit from each other you use an interface?

[stuck sentinel]

how do i set crouchwalk to loop

its playing it once then stopping

[slender dagger]

does it loop when you view the animation in the sequence viewer?

[stuck sentinel]

yeah

i enabled loop here

[stuck sentinel]

but how do i enable it here

[gentle urchin]

Yes exactly

(But then you can do components if you want some precoded logic and statefullness, instead of an interface)

[fiery swallow]

https://i.gyazo.com/6d4358b068b28694389f6335e2315928.png

[stuck sentinel]

thank you

[slender dagger]

who could've known an idea as basic as actor communication could have so many different ways of going about it lmao

[gentle urchin]

Hehe yeah

Well its all just tools

In the toolbox

[grim crypt]

whats the way to make editor utility tools now?
actor action utility wont even print string to screen, seems buggy

[keen gulch]

Hey, am trying to switch my camera to another one in a blueprint. How would I do that ?

[gentle urchin]

SetViewTargetWithBlend

[thin panther]

Use standard blueprint communication techniques to obtain a reference to it, and use SetViewTargetWithBlend

[rancid moat]

wait, is there no way to have data preset?

[frosty heron]

wdym by that

[rancid moat]

I have a structure, I want that structure to be parameter of an instance of a class, and I want to be able to set that structure to a preset of data.

[frosty heron]

I don't understand, but it's probably my English level

[rancid moat]

hum..

[frosty heron]

got practical example?

[rancid moat]

Yep, coming up

let's say I have a factory that produce houses.

I have a function that take a parameter and produce a house following those parameter.
For instance, house is composed of a Roof, Door, Windows.

Lets say now that my roof is a structure, composed of a shape and a color.

So my factory would have as parameter (struct Roof, mesh Door, mesh Window) for instance.
I want to be able to pass a pre-filled Roof Struct to my house factory.

[frosty heron]

You can pass Struct if that's the question

including literal struct

[rancid moat]

I can't pass pre-set struct.
Like I can't have a Roof Struct and then
RedRoof a preset of Roof Struct with Triangle Shape and Red color

Or I don't know how I could do that

[frosty heron]

Show me your function signature

need to figure out what you are actually trying to do

[frosty heron]

RedRoof can be a literal struct

to make one, right click on empty field. Type Make -> Then type your struct name

[frosty heron]

#blueprint message

[rancid moat]

Yes, I want a preset of that, I don't want to create it at run time

I want a file with all the data alreadu written

[frosty heron]

You can use data table

or data assets

I will go for data table for this case

[rancid moat]

That's also what I was looking for

[frosty heron]

Try not to have hard ref in your data table tho

you might end up loading the entire structures in the game unintentionally

unless that's the intention

[rancid moat]

issue is, data table aren't heritable

[frosty heron]

data assets it is then

[rancid moat]

Ok so it's C++ only

[frosty heron]

I don't really use data assets yet but what makes u arrive in such conclusion?

[rancid moat]

Unreal Data Asset documentation ahaha

[frosty heron]

you can make data assets in blueprint

[rancid moat]

yes but I can't define members

[frosty heron]

the data assets should be a blueprint assets anyway

but it can have cpp class as the parent

U can declare member variables with out touching cpp

but if u can use CPP why not, especially if your struct is a bp struct, I will deffinitly recommend switching now than later

[fair pecan]

I have a BulletActor which interacts with Turrets if they are Deflected by the player. Any1 knows why adding a Delay-node of a measly 0,2 seconds disables Destroy Actor-node of the Turret to be commenced?
If I remove the Delay-node the Impulse-node won't have proper time to play out when Bullet hits the TurretActor because it is ofc instantly destroyed.

Here's two video-demonstrations:

I am trying to make the Turret to be thrown into the air for a bit before initiating the Destroy Actor-node

[gentle urchin]

Set lifetime is your friend

[fair pecan]

Is it the same as the "Set Life Span"-node?

[gentle urchin]

thats the one, my mistake

[fair pecan]

Do I switch the delay node with that one or destroy actor?

[gentle urchin]

both

its two in one

[fair pecan]

holy cow

[gentle urchin]

its a delayed destroy 😄

if 0, it wont be destoryed

[fair pecan]

I c. I'll toy around with it to see if I can make it work! Thanks again Squize!

[gentle urchin]

You'd probably also wanna block firing if you're in the process of being destroyed

[fair pecan]

Firing bullets?

[gentle urchin]

I guess?

x)

[fair pecan]

Haha yes

[harsh coral]

Ok, so I set up a timeline in my blueprint which should trigger a skeletal meshs morph target.
I got it working, but the issue is:
A) It only plays when I hit play. As I need it only, when I´m rendering out a sequence using Movie Render Queue...is there anything else I need to add?
B) The play rate is way too slow. I need it to play at 25fps exactly. How do I set that?

[fair pecan]

This might not be what you are looking for, but it also only plays once since u have it plugged into the Playnode in the Timeline. If u want it to Play multiple times u need to connect it to the Play from Start.

[frosty heron]

You can control the morph target in the sequence instead

especially if u want to sync with the sequence fps

[harsh coral]

Yeah, but its an animation I´m going to reuse over and over, so I´d prefer it as a reusable asset, that I can just activate and I can´t figure out how to save a morph target animation created in sequencer as a reusable animation sequence...

If you know of a way how to create an animation sequence instead out of morph targets, I´d prefer that.

[frosty heron]

if you are doing it outside the sequence, you will not be tied to the 25 fps you required

[gentle urchin]

Or set it to looping internally

[frosty heron]

make a function out of it and just call it whenever you want to play the anim

in the sequence you can run event notify to execute the morph but again, it will not be tied to the sequence fps

[fair pecan]

Oh yea! Missed that one

[harsh coral]

I did...but it plays so slow, I didn´t even see it loop yet...:)

[frosty heron]

play around with the timeline then?

[harsh coral]

I know how to animate it in the sequencer. But then I need to animate it from scratch for every new sequence.

I really don´t get why you can´t save morph target animation as an animation sequence.

[frosty heron]

I dunnoe, you probably can

afaik you can save anims u create from sequence

but never done it my self

[harsh coral]

Hm that doesn´t work for me, can´t plug in the timeline variable into the target slot, as its not a sequence?

[harsh coral]

Yeah, only works for skeleton/bones animations, not for morph targets. Its so counterintuitive, coming from a linear content workflow instead of games...

[frosty heron]

it's a timeline comp. Nothing to do with sequence

[harsh coral]

Whats a timeline comp?

[old frigate]

I recently concluded that the Unreal Timeline node is very difficult to use and there are always various problems.

[frosty heron]

No issue for me. The bad experiences I had was due to my errors

it work as it is

[frosty heron]

not the right node

from the blue pin, drag and type set play rate

[frosty heron]

U are still trying to connect to the wrong node

from the blue print drag, right click, type set play rate

[old frigate]

Well, maybe I’m complaining a little bit. In fact, most of the problems are caused by the developers’ own code logic. The Timeline node is essentially very convenient.

[harsh coral]

Damn, thats so confusing, lol.

[frosty heron]

Not really >_>

the error msg is also crystal clear

[frosty heron]

Most famous mistakes which I've done my self is doing a lerp but changing the value on update

[harsh coral]

Yeah, its confusing, if I just add the node by right clicking (Set play rate) and its a different node then when dragging out from the variable itself...

But named exactly the same.

[frosty heron]

you can use context sensitive when searching, also look at the target when pulling out nodes

[harsh coral]

Is that something you usually should do? Always drag off from a variable rather than creating a node by right clicking?

[frosty heron]

yes because many things can do the same thing

[pulsar hazel]

Hey guys, does anyone know how to get a texture raw data? Is it possible with blueprint only?

[frosty heron]

Set Play rate Montage, Set Play rate anim, Set Play rate timeline, etc, etc

they come from different objects

you want to get relevant one

[frosty heron]

Possible

[harsh coral]

Yeah, but why not call it that then, instead of just "set play rate"...:)
Well, its just complaining about not being a programmer and trying to understand the logic, I´m sure it makes more sense when you get the hang of it.

Either way, its working now...one more question though:

[frosty heron]

it will be a breaze once you get used to it

[harsh coral]

If I wanna animate the starting point of the animation...what should I add in this event flow?

[pulsar hazel]

How?

[frosty heron]

there should be a helper function, look around

[harsh coral]

And is there a way to see it in editor without pressing play?

[frosty heron]

i got to read the pixel values once, but I think I used cpp.

scrapped it because it was too expensive or I just don't know the better way

@pulsar hazel Ok seems like there is only one for RenderTarget in blueprint

there might be one for texture but I can't find it

[pulsar hazel]

Do you know how it is called? I am looking for hours XD

[frosty heron]

read pixel something for rendertarget

that's not a texture tho

you can ofc read texture raw pixels but seems like cpp route

I think last time I try to read one, my game froze for 4 seconds

[pulsar hazel]

but is it worth it? I am trying to save run-time generate images on the save game

[frosty heron]

in bytes?

then reconstructing it?

[pulsar hazel]

Not necessarily, I tried just saving it before and exporting/importing files, but neither did work]

maybe I did it the wrong way

[frosty heron]

Easy mode is just to export it as png

then you save the paths in your savegame file

When you re-load the game, get the image by importing the image from the saved folder

that can be all done in blueprint too

[pulsar hazel]

But when I try exporting as PNG I get an error saying only exr is avaliable

and when I import the exr I get unknown

[frosty heron]

what node are u using?

Since you said run time generation, I am gonna assumed you use render target?

[pulsar hazel]

Yes, but I saved it as a texture

[frosty heron]

you save it as .png

[pulsar hazel]

But I can change to renderTarget or texture2D (tried both before)

[frosty heron]

use these nodes

[frosty heron]

lets go with the easy mode imo

I don't know what export to disk does, not my league

and what format it will produce

[pulsar hazel]

Okay, but how Can I create a texture2d from a render target (I only found the editor only nodes)

[frosty heron]

Just export the render target as png directly

that's what I did

[pulsar hazel]

But I only can Import it as a texture 2d, right?

[frosty heron]

no

you export render target as PNG

not as texture 2D

Then when you load the game you can import the PNG as texture 2d

[pulsar hazel]

but is there a way to import the PNG as a render target

[frosty heron]

Render target is something you get when you project a Render Target

it will be what ever the render target camera sees

[round spruce]

how do i spawn actors in the construction script i want to spawn sth in editor but it seems it wont spawn at all

[gentle urchin]

Usually you dont

[frosty heron]

I heard that's disabled

[gentle urchin]

you can spawn through editor functions

[round spruce]

yea it is but there must be a thing to you do to bybass ?

[round spruce]

what is this

[gentle urchin]

buttons that appear that can be clicked

[pulsar hazel]

But when I import the file, it is a texture 2d and cand be saved on the variable

[round spruce]

is that edtior extension stuff? iam 0 knowledable in that

[gentle urchin]

cant save texture2d as var?

[gentle urchin]

its just editor executable logic

can be placed in a regular actor

so you can have a "spawn 2430 trees in a circle around this actor

[frosty heron]

Are you importing texture 2D or are you importing Render Target, which is it? I've provided the 2 nodes above

[gentle urchin]

convenient

[round spruce]

so i search with unreal editor functions and that should guide me ?

[pulsar hazel]

I used export render target

But I can't fin an Import Render Target from file

[frosty heron]

You don't import render target from file...

Remember you are exporting png files

[gentle urchin]

select a custom event with no inputs.
In the details panel , there is a "call in editor" checkbox

select that

then put the actor in the level,

select the actor

watch the details panel

[frosty heron]

You export a render target to a PNG in your saved folder
Then you import the PNG as texture 2d

[gentle urchin]

and see a button with the event name appear

[round spruce]

dam thats easy and this should allow me to spawn ?

[pulsar hazel]

So I need to export and import with different variables? but since the render target will be lost after load it will be unable to export again when I try to save the game again

[gentle urchin]

in editor, yes

[round spruce]

worked ty ❤️

[frosty heron]

I can only reiterate this #blueprint message

this is how I export, save and load my Player avatar

[harsh coral]

Hm, think I´m gonna give up on my morph target animation triggered in blueprint directly...
Probably best to use the blueprint animation instead and simply copy the animation over to other sequences, as needed.
Its just so stupid that you cannot simply save morph target animation as a animation sequence, you you can reuse it in sequencer...

I can get it to play when I simulate and I can even change the play rate and control that in sequencer, but I can´t make it play as soon as the sequence starts playing or at a specific time, which is what I do with niagara effects using the lifecycle track.

[gentle urchin]

why not at a specific time ?

its just an event trigger isnt it

[steady night]

if i change a struct like this

will it overwrite the other variables in the struct ?

[frosty heron]

test it

[steady night]

i did

[frosty heron]

a print string will do

[steady night]

something is breaking but i dont know if its here

[frosty heron]

print string the other values? before and after

[harsh coral]

Can´t figure out how to create an event that triggers it that I can keyframe in sequencer.
And I also cannot see the animation in editor unless I hit "PIE".

[steady night]

hm it did .

then how do i change an elemetn in the struct only :/

[frosty heron]

fill in the literal struct with the values from the current struct

[steady night]

got it

[tough osprey]

Is there any chance this would not work while paused ?

[simple echo]

Hey y'all, I'm having trouble detecting collision between 2 actors. In my enemy blueprint, I have this blueprint snippet, and nothing is being printed at all

[lofty rapids]

so the event isn't firing most likely

[simple echo]

Would you have any idea why?

[lofty rapids]

collision settings ?

[lofty rapids]

are you looking for overlap ? what is this event hit on ?

[paper latch]

Hi folks.
I have a blueprint with a variable that I would like to have hidden, or disabled based on a boolean.
If that boolean is true, it shows other variables. If that boolean is false, it hides them.
Is this possible?
Thanks!

[simple echo]

I'm ideally destroying both objects when they collide. I don't imagine they will be overlappping one another.

[lofty rapids]

i'm still new to unreal, idk about event hit

i just done overlaps

which i assume overlap begin is like a hit ?

[simple echo]

Yeah, I tried overlap and got it to work. Thanks @lofty rapids 🙂

[lofty rapids]

"Event Hit specifically deals with physical collisions and blocking objects."

[spiral kite]

I made a knife throwing event, but when I throw the knife on the ground or on the wall, it starts spinning around like a beyblade. how can I prevent this?

[lofty rapids]

Maybe you could try to make it stick in ?

or what do you want to happen, it just drops ? it's probably physics

[steady night]

why is unreal UI acting like a B#¤"%¤

in editor

https://gyazo.com/f2319e647238943ec20dff093ec02b62

in game..

anyoneeee

hate this stuff

[lofty rapids]

you probably want the array element, your tryint to set a single thing to an array

[harsh coral]

Hm how do I change that then? I had a "for each" loop stuck in between before and that worked, was just wondering if it could be done without iterating through all 500 skeletal meshes...

But I guess not?

I really suck at understanding the basics...:)

[lofty rapids]

well you want to apply to all or a certain one ?

if you want to apply to all you'll need to loop through them

if you need a single one you may be able to single it out

[harsh coral]

yeah, I´m just stupid.

I keep getting stuck between thinking how to do things in the viewport and how I have to do things in blueprint.
Like, whenever I´d select a bunch of objects i the viewport and change something, I have to do a "for each" loop, I mean I guess thats basically whats happening under the hood anyways:
Selection gets converted into array, thats passed into a for each loop...

[lofty rapids]

ya that's pretty much the gist of whats happening under the hood

it's selecting them all, then applying probably one at a time

in a loop most likely

[lofty rapids]

when you use a foreach you have a few outputs, one is array element, that's the item in the array at that index

[harsh coral]

Well. I gotta let this go. I´ve tried everything I could do make something seemingly very simple work.
Took me two days to work on this whole blueprint and set everything up and then I´ve spent 1.5 days trying to figure out how to add just ONE functionality for convenience sake.
Getting a bit unbalanced in terms of time spent and there is still a lot of other stuff to do...

[lofty rapids]

i mean going through a quick blueprint tutorial, or looking up the basics online might help

variables

functions

stuff like that

[plucky pasture]

Hello. Is there a way to add an actor to a data layer through blueprints?

[golden kite]

Did you know you could destructure the struct pin? This was life-changing for me. Just right click on the struct pin and you'll see the option to expand it. This will give you easy access to the individual elements of the struct so you can change just one of them.

[lofty rapids]

why use tags instead of a variable ?

i have not used tags yet, i can see i can use them and do hastag, but is there really much more to it ?

[golden kite]

I might be really wrong here, but my impression was that TAGS are used to help you find, filter and select assets, for example using a blueprint node like getAllActorsOfClassWithTag (might have misremembered the exact name). Variables on the other hand are used by the blueprint to store dynamic values that will change as a result of gameplay and influence business logic.

Does that make sense?

[hollow bane]

i have a question:

I got a linetrace and i want to make two event dispatcher calls to two different blueprints - an obstacle and a target
Both blueprints are similiar they do count up or down a score and also play a mediaplayer hitmarker at the hit point location.
My problem is that when i do this both hitmarkers get triggered. Any idea why?

there are two seperate event dispatchers

[lofty rapids]

ya that makes sense, pretty much what i figured, but that get with tag thing is cool

it's better than what i'm currently doing which is checking a variable on foreach of a parent class

probably should use tags there

[gentle urchin]

Sounds a bit weird to use dispatcher for that i guess?

Show some code?

[shadow dove]

I have been attempting to add music when an ai is chasing the player, that stops when the ai loses sight of the player (and stops chasing)

So far it plays when the ai starts chasing, but doesn't stop. Had help from someone on a different discord and my uni lecturer

There's lots of BP if any more needs to be seen let me know

additionally the 'lost line of sight' print string shows just fine

[frail onyx]

Anyone know how to make an action happen once my player lands? like have it get squished with a timeline or something

i have the whole squishing part setup im just not sure how to trigger it the moment i hit any ground

[dark drum]

Assuming it's a character, you can use the on landed event.

[frail onyx]

oh its that easy, thanks lol

[hollow bane]

i am super new to really do blueprints and have problably done more bad than good

😄

i included the scoring also right after here bcause i think i had broken it when i tried to do it with the event dispatcher in the target and obstacle blueprints

[gentle urchin]

What bp is this?

And whats its responsibility?

[hollow bane]

this is the linetrace

it detects right now my mosue position in the viewport

later in real life it will be a ball hitting a wall sending data in via osc and touchdesigner

here is my obstacle

someone told me to use a blueprint interface but i have no idea how to use it

[gentle urchin]

Im just confused about the blueprints and what they are ment to do and how they relate

Currently you're trying to simulate by mouse ?

[hollow bane]

i have one blueprint which is a linetrace to see if something is hit (right now since i dont have a kinect here im simulatnig by using my mouse for this)

from there if something hit

i want to make a call (not sure if this is the right way)

for two blueprints placed in my level which are a target and an obstacle

if the target is hit i want to count up the score in the ui and for the obstacle i do subtract

i also have a mediaplate hitmarker that i play at the location the line trace hits the actor

[gentle urchin]

The thing doing the linetrace would prob be your 'pawn'

The things being hit can be identified by tag and / or casts

[hollow bane]

its in my character blueprint

[gentle urchin]

If theres only ever 2 types of targets, then casting is just fine assuming they're mostly always loaded

[hollow bane]

so here i do cast to them in the linetrace blueprint (character i think, i am verifying unreal i have to wait again to open the project) and then do the count up and down for the ui but i do also send the location with the call to the blueprints to play the mediaplayer which i have included in them

should i change it?

[nocturne basalt]

need your help devs with Move Component To BluePrint. I made the button and grid into one actor and wrote this BluePrint where the grid called "RAILS" is supposed to move on one axis (x or y) as I press the button, but it moves in all three. Need your help, how to make the "RAILS" move on only one axis and slide into a wall

[peak zodiac]

How would one go about implementing recursive data structures? IE: struct a {string aa, int ab[], a * ac} a;

[gentle urchin]

#cpp

[gentle urchin]

You wanna get the current relative offset and add 100 in one axis to that

I bet you have it offset already. So moving it to 0 in two axis causes movement 🙂

[hollow bane]

@lunar sleet

[wispy badger]

Any help? BP doesn't want to fade my screen and my camera stays in default (0,0,0) position (I spawn the player after an intro "cutscene")
Blueprint: https://blueprintue.com/blueprint/e3tz9_fc/
(sorry its all packed up ;/)

[lunar sleet]

Squize was helping you already, no?

[hollow bane]

i havent quite understood what is wrong or what direction i should go

[lunar sleet]

Maybe rephrase the question? What are you going for and what’s not working

[hollow bane]

i want my target bp actor and obstacle bp actor to recieve a call from my linetrace hit and play a mediaplayer texture at the hit location. i use two event dispatcher calls from where the linetrace bp is happening. is that the right way to approach this? My problem is the hitmarkers played both at the same time when i hit the obstacle or the target

the event dispatcher also has an input vector that i can use for the mediaplayer to transform on hit location

[peak zodiac]

I know how to do it in C, what I don't know is how to do it in a data table or blueprint (Well blueprint can just have the C++ exposed, but Data Tables is where I really need it.)

[lunar sleet]

Line traces can’t rly make calls. They just trace over a distance until something is hit. You can make custom collision channels if you on out want it to hit certain things.

Then, in the appropriate actor you can use an on hit event

No need for a dispatcher tbh, just use the hit events - unless you need to call stuff from other bps once the hit event fires

[wispy badger]

any help, please?

[velvet pendant]

Still not getting it

Get actor location > Move component to, but the weapon is moving far away, any ideas?

[obtuse glacier]

I'm fairly well-versed in Unity, but I haven't worked in Unreal scripting in some time. I'm trying to make a top-down game as practice, and currently attempting to make the player pawn turn to face wherever the mouse is on screen when left mouse is clicked. Any obvious reasons this wouldn't be working/terrible ideas displayed in my code that I could improve?

[velvet pendant]

would not be better with set actor rotation?

@obtuse glacier

[obtuse glacier]

Probably, I'll try that, thanks!

Still didn't work. So probably something to do with either A) I'm rotating the wrong thing or B) I'm not putting the right rotator values in

This is my Character pawn class hierarchy right now.

[velvet pendant]

You have 2 meshes?

why

[obtuse glacier]

Probably cause the character class comes with a skeletal mesh that I don't seem to be able to delete

I'm not really setting this up for being suuuper robust in the long term. I'm just trying to practice and get familiar with unreal again

It's been years

By the way, should I be handling player movement in the Character class or the PlayerController class?

Character class seems far easier but I feel like it would be more robust in the PlayerController class if I wanted to make swappable pawns for different player characters

[wispy badger]

BP doesn't want to fade my screen and my camera stays in default (0,0,0) position (I spawn the player after an intro "cutscene")
Blueprint: https://blueprintue.com/blueprint/e3tz9_fc/

[obtuse glacier]

I moved my code into the actual character class and it worked, but it feels kind of kludgy - what is the character controller even for?

More importantly, how do I find child components/objects of a given object in blueprints? I know in code it would likely be object.childname.childname etc., and I could assign it to a variable. What's the equivalent in BPs?

Ok, I realized that that is just what you'd do in BPs I imagine. So I made a variable to hold my character's BodyTransform so I don't have to be getting its transform from my mesh's reference every time

[velvet pendant]

As far as i know, everything that's in M, is in Child too

So, you basicly dosen't have to reasign everything, everytime

Just modify in the child

[obtuse glacier]

What do you mean by M?

The mesh?

[velvet pendant]

Mother class > child class

Wanna modify smth in Child, just cast to it, idk

[obtuse glacier]

Isn't casting changing one data type to another?

Like casting int to string

[velvet pendant]

No

Cast to ai_enemy > As ai_enemy set health = 10

and etc.

As reference, My Ai_Bomber have this Variable called Enemy Health, and i cast from anywhere to modify it. dunno if that's what you need to hear, that's what i was gettin' from your question

[obtuse glacier]

I thought casting was saying "try to interpret this object or information as this different sort of object or information"

not finding any instance of that type as a child class or component

[velvet pendant]

no

[agile moss]

I have a question about timelines. So I made a door using a timeline but every time when I close and reopen the door the rotation is a bit off. Like instead of going from 0 to 90 it can go over, why is that?

[obtuse glacier]

But that's what the documentation says. Can it mean something else too?

[velvet pendant]

i don't use it in that, way. i'll give it a try and come with feedback, I mostly use it just for Communicating w bps.

Never find this a option

[velvet pendant]

Can i see ur timeline?

[gentle urchin]

You can do fun stuff with DTs in cpp

Stuff you cant do in bp

[agile moss]

sure, give me a sec

[velvet pendant]

and how's that wrong

Do you let the animation till end?

[agile moss]

I dont know, everytime I open and close it just goes over how I set it

[velvet pendant]

before re-using the button?

[agile moss]

yes

I mean I could fix it by adding some more code that sets it to 0 or 90 when it finishes, I was just wondering why it does that

[velvet pendant]

it's should not

lol

[agile moss]

kek

omg

I think I found the problem

nvm, I had to play from start, but it isnt any better

[twin shale]

Does anyone know the proper way to call a subsystem from a UObject?

[gentle urchin]

Dont you need some world context?

[twin shale]

That's what it says, but I have no idea how to supply the world context without an interface to do so

[gentle urchin]

Isnt there another get node

[twin shale]

The only node I have to get the gameplay message subsystem is this one. I don't think I can break it or give it variables?

It only asks for this context when I call from UObjects

Somehow AActors supply context automatically

[gentle urchin]

Yeah i think its a hidden auto context pin

But i thought there was a node without it hidden...

[twin shale]

This class has a C++ base, can I add context somehow in C++? I've never tried

[gentle urchin]

I will say... likely

[twin shale]

C++ is a magical place where all your dreams can come true.

[gentle urchin]

Indeed it is

[wispy badger]

BP doesn't want to fade my screen and my camera stays in default (0,0,0) position (I spawn the player after an intro "cutscene")
Blueprint: https://blueprintue.com/blueprint/e3tz9_fc/

[shadow dove]

This is probably very simple because I feel like I used to know how to do it but I can't remember. How do I access/update this variable on another blueprint? e.g this variable is on the player character and I want the enemy controller to change it

I have made it public but I can't remember what to do next, something with casting is what I recall?

[velvet pendant]

cast

cast to myBP > as MyBp > set Chase Volume

[shadow dove]

thanks, I was trying to cast the other way and getting confused lol

[velvet pendant]

Np

[shadow dove]

oops actually

what is the object

[thin panther]

an instance of the third person character

it's always an instance of thing you want

in this case one of the many accessors for the player character will do

[shadow dove]

thanks :)

[thin panther]

I'd have a look through the pins and watch the blueprint communication live training.
It's long but will do you wonders in the longer run

[gentle urchin]

Even short run

[thin panther]

true that

[shadow dove]

tried the sound again by instead changing the volume between 1 and 0, doesnt work again, I imagine because it just plays the sound at event begin play and doesn't update the volume when the variable is updated but don't know how to make it do that

just to reiterate since it was a little while ago I said what I was trying to do, I'm trying to get music to play while the enemy AI is chasing the player, and stop when it stops chasing and goes back to 'patrolling'

[velvet pendant]

what are you trying to do mate

?

Branch if enemy has line of sight?

Cast to Chase volume and turn it up and down?

if x happens

[nocturne basalt]

Oh, thanks very much. I thought about that initially, but thought "relative" means to a component's origin. It finally works!
I even found a way to how to GetWorldLocation by myself, feel smart

[gentle urchin]

https://tenor.com/view/matt-le-blanc-joey-friends-hat-rack-gif-12490383

[shadow dove]

yeah I think so

[velvet pendant]

that's more like it bro

[shadow dove]

I'm just stuck on how to make the volme of the sound update

[velvet pendant]

wdym

bring it up, let's see if i can help

[shadow dove]

let me know if there's more you need to see it's too big to screenshot in one

[velvet smelt]

@shadow dove Are you trying to play music when seen?

[velvet pendant]

chase volume - > set chase volume

[shadow dove]

yeah so I managed a few different ways to make it play when being chased (seen) but can't get it to stop when the AI stops chasing

[velvet pendant]

Before setting the chase volume, be sure you're add / substract from it

otherwise you're setting the same as it is

[shadow dove]

im just setting it to either 1 or 0 though right?

[velvet smelt]

Ummm...let me see. When you use Play sound 2D... It just plays a one-off sound. I'd recommend a setup where you have a constant reference to the Sound.

[velvet pendant]

that's what i was saying.

[velvet pendant]

i tought you gonna make the sound fade away.

[shadow dove]

that's what I was thinking was the issue, how do I do that?

[shadow dove]

no just stopping is fine for now, because I can't get it to do that as is

[velvet smelt]

Sure, I'd use a metasound asset in an AudioComponent then have events to Play Trigger Param/ Stop Trigger Param etc on the audio component. Let me pull up one of my projects...

You could create a Subsystem as well, to handle all of the Audio/Music as well.

[shadow dove]

whatever's the quickest way tbh, been trying to do this for three days and it's due in tomorrow 😅 tried four different ways

[velvet pendant]

You're working in some sort of company?

[shadow dove]

uni

[velvet pendant]

uni?

[shadow dove]

university

[velvet pendant]

ohh

i see

[velvet smelt]

@shadow dove
Well the component method should take like 5-10 mins.
(This is quick and dirty)

1. Add AudioComponent to Character
2. Create MetaSoundSource Asset
3. Create Wave Player in the MetaSound (Set chase audio)
4. Create 2 Trigger inputs in the MetaSound
5. Create 2 Events in Character Play/Stop -> Set Trigger Parameter for each

https://docs.unrealengine.com/5.3/en-US/BlueprintAPI/MetaSoundParameterPack/SetTrigger/

[queen heron]

I'm trying to spawn a character blueprint into the scene outside the spherical skybox

but nothing happens

[wispy badger]

any help?

[queen heron]

I've also set up to spawn an actor which works just fine

[queen heron]

how do you fade the screen? what do you use?

[velvet smelt]

Nothing happens. Like, the character doesn't spawn? Did you try setting you player start to the desired location?

[queen heron]

its not the player itself

[wispy badger]

Start Camera Fade function. Whole blueprint is here: https://blueprintue.com/blueprint/e3tz9_fc/

[queen heron]

this blueprint is from the player character

[queen heron]

I think it would be easier to set up an animated fade

[velvet pendant]

what are you trying to do mate?

[wispy badger]

and how would you do that on the camera?

[queen heron]

not the camera, but the image from the widget

[queen heron]

I'm trying to spawn a animated character of the main player as a status icon into the HUD after the player spawns

and an actor of the object that needs to be collected

the actor spawns

but the animated character doesn't

[wispy badger]

I dont want to use a separate widget for fading the camera if camera manages can do it itself

[opal wraith]

hellow

[velvet smelt]

So you're using a scene capture to render the animated character to the HUD?

[queen heron]

yea

[queen heron]

have you tried using the fade node with event tick instead?

[opal wraith]

How can i snap an actor to procedural mesh grid closest vertex from mouse position?
I’ve been trying to make a wall building system for 2 weeks now and i’ve been struggling for the past 6 days trying to figure out how i can snap an actor (in this case it’s just an actor that contains an arrow) to the closest vertex on the grid compared to the mouse location.

The grid is a procedural mesh created like so:
i also have the camera logic to pan it around

[velvet smelt]

I would setup some print strings to make sure the anim char is spawning. Also, verify your render target, material setup. Does the render target display anything at all in the texture itself?

[frosty heron]

That doesn't sound like it will work

The camera fade it self faded over time based on duration

[queen heron]

I am already checking, and the print string doesn't fire from the false input of isValid node

also when I exit out of the player controller and check the scene outliner

the player status actor is nowhere

just the object actor

[shadow dove]

how do I add an audio component?

[queen heron]

what duration have you set on that node

[wispy badger]

why would I do that? It doesnt require it being animated every frame. Animation is done behind the scenes

[wispy badger]

0 for instant fading

tried with 0.1 but the same thing happens

[velvet smelt]

In Character BP...you'll see an "Add" button in the top left...search for Audio Component

[frosty heron]

Don't think 0 works. I always do 0.000001 for instant fading

[mystic edge]

Hey guys, I am trying to make a game where you control a character and then switch to a Drone to do building. I can now switch between the two and the camera inputs work but i cant move when in the drone. (Character is an actor, Drone is a pawn). Picture is Drone Blueprint (Sorry that it is so small)

[frosty heron]

Start small. Make sure u fade away first. It's just a node. U have a lot of thing going ok with your code. Try one step at a time

[frosty heron]

U r switching to drone only actually

[wispy badger]

hmm, suddenly started working. Another cache issue ig

[frosty heron]

You are possessing the drone every frame

[velvet smelt]

What class is doing the spawning on BeginPlay? I'm guessing that that's the player character?...and what's happening after that?

[frosty heron]

U can only posses one at a time

If you want to control the character, don't unposses it

[mystic edge]

I cant control the character.

Just not the drone

[frosty heron]

That'd what I'm saying

U unposses the character

So all control is forfeited for the character

[shadow dove]

is this all for 3?

[queen heron]

after the player status actor, it spawns the object actor at the same location as the player status actor, surprisingly, it gives no error

[mystic edge]

and how would I fix that?

[queen heron]

yet there's no player status on scene

[frosty heron]

Many ways. One way is to have input in your player controller instead and have drone and character listen to it

[queen heron]

its supposed to be around here, but it ain't

[velvet smelt]

Can you try adjusting the Z distance to something small for troubleshooting purposes? Like 300 or something. I'm wondering if it's being destroyed because it's out of the world bounds.

[queen heron]

oh!

seems like that was the problem

reason why I was setting it out of bounds was because I followed a tutorial a while ago about having 3D objects into the HUD

the guy mentioned to have the object outside the skybox

but I don't think he mentioned about other actor types not being allowed to be outside

[mystic edge]

So something like this or am I missing something?

[shadow dove]

stuck a bit on 3 onwards I think, sorry if this is basic stuff

[velvet smelt]

Cool beans. Yeah, there's a few methods to make that happen. I think there's a distance setting in the actor class to destroy if out of bounds. You can also adjust the world settings.

https://docs.unrealengine.com/5.3/en-US/world-settings-in-unreal-engine/

[velvet smelt]

It's all good....let me see

[queen heron]

yup

[stiff leaf]

That is in PlayerController? Unpossess call is a bit weird for me, should be posses towards player right, unposses will be called automatically.

[mystic edge]

Yeah that works too just like the last screenshot i send. But still cant move the pawn (Drone)

[stiff leaf]

do you get any print of EIA_move in the drone?

[mystic edge]

Drone BP:

[velvet smelt]

Did you add the wave player?

[shadow dove]

this? not sure if thats right at all

[stiff leaf]

F9 for breakpoint on move. Does it fire the input?

[mystic edge]

yep

[mystic edge]

Drone BP instantly opens

[stiff leaf]

We have a drone as well

[mystic edge]

"Floating Pawn Movement" ?

[frosty heron]

No..

[velvet smelt]

That’s it. Now plug the out mono into the output out mono. Create two new trigger inputs in the left details panel.

[mystic edge]

Add Input Vector needs a target

[shadow dove]

like this?

[stiff leaf]

Yea, you need to add that component "floating pawn". But AddMovmentInput should alsow work. Might be that the input from the EIA_Move between 0-1 is too small to see.Try multiplying it.

[mystic edge]

I love you bro. Have been trying to fix this for days now, thanks

[stiff leaf]

You are welcome!

[shadow dove]

got this too btw

[velvet smelt]

That’s it! Now drag the two triggers you created and plug them in into the play and stop. You can detach the onlay that’s plugged in currently.

[shadow dove]

@velvet smelt got it

[ancient heath]

What should I connect there so that my widget has a custom cursor?

[velvet smelt]

A user widget object

[ancient heath]

How i can create that?

[shadow dove]

what next?

[velvet smelt]

In the content browser, right click and add User widget

[velvet smelt]

Create the events' in the character class

[shadow dove]

?

[velvet smelt]

Yes, then the Set triggers

[shadow dove]

struggling to figure out how to addd those

[velvet smelt]

Drag the Audio Component to the graph, then drag from there and type SetTrigger

[shadow dove]

so like that?

[velvet smelt]

You got it!

[shadow dove]

awesome right, so now all I need to do is make the enemy trigger the events right?

[velvet smelt]

Bingo bango!

[shadow dove]

is this not right?

[velvet smelt]

That's right

[shadow dove]

hmm, it is not playing

[velvet smelt]

Where is it being triggered to start Playing?

[shadow dove]

oops lmao I madde it stop for both

ok it still doesn work one sec

hopefully thats readable

[pastel skiff]

ok so i got this code and it shuld work like that, you walk in the box the value in the first person character is set to true but it doesnt work, anyone know how to fix it?

[flat coral]

I'm adding force every tick to this pawn and it SAYS it's going faster and faster, but it's not actually moving and the logs prove it

[velvet smelt]

Hmmm...does the Chase Audio Component have the metasound set?

[shadow dove]

as in the wave asset?

[velvet smelt]

In the character bp, click the audio component then set the asset to the MS

[shadow dove]

like that?

after ddoing that it now starts the sound on game start

and doesn't stop

[velvet smelt]

That's it. Uncheck the activate button.

[shadow dove]

where's the activiate button?

is it this

[velvet smelt]

It's in the setting of the audio comp...scroll down

Thats it