blueprint

[wary tinsel]

Hey is there a way I can move my camera actor on a rig rail via blueprint? (not via sequencer)

[trim matrix]

https://www.youtube.com/watch?v=YmHNJBT_f5k
I have been following this tutorial and it works perfectly but when i try it on an external network it fails to join the session (Altough it can find one)

what does this node do?

[long schooner]

hey, anyone had a problem with widgets after build? I can't see my the widget after I build the projectg

[trim matrix]

it unrotates a vector duhh 🙄 /s

[drifting fjord]

dose anyone know how to just disable a keyboard input?

like E

or smt

i dont wanna fully disable all inputs

[icy dragon]

Do a branch right after the input action event

[drifting fjord]

okay

then what

nvm i got it

thx

[distant rampart]

Is there some tutorial for building mechanics, I mean not like survival game but where you design it on "paper" and then be able to see it in 3d ?

[cyan bone]

I have a line between 2 actors. And i get the middle point between them by subtracting and dividing by 2. How do i make a line perpendicular to this line between 2 actors coming out of this middle point?
https://blueprintue.com/blueprint/scyb5dm7/
https://imgur.com/a/xjsTm2K

[torpid mulch]

Is there any way to avoid this error? I feel like I did convert float to integer before and had no errors 🤔

[long schooner]

hey anyone could help me with a widget problem?

[gentle urchin]

Double precision float. Try single ?

[torpid mulch]

Oh wow, my bad lol 🤦‍♂️

Wait, that's a single precision float though

[spice imp]

In 2D or 3D? If 3D, there are infinite perpendiculars revolving around the line, and you need to pick a direction.. If 2D, like say from overhead, lose the Z component, swap X with Y, and negate one of those. Which one you negate determines which side of the original line.

[light pilot]

Hi there I'm trying to workout a problem I'm having with a endless runner I'm making. I have 2 lanes which my character can switch between, both lanes spawn a obstacle at random times sometimes this obstacle is spawned at both lanes at the same time which makes it impossible to proceed. How can I make it so it is impossible for both obstacles to spawn at the same time?
The tutorial I'm following: https://www.youtube.com/watch?v=FRh_ulfmoiw&list=PLL0cLF8gjBpoTwM62rvhgmsk_Xp1_G1Vn&index=11

[tawdry surge]

Save the last spawn location and if it tries to spawn too close add an offset

[gentle urchin]

Just interlock it, so that a total block can never occur

[light pilot]

uhh, I'm very new to this so could you enlighten me with a bit more detail how to set this up?😅

[cyan bone]

Sorry. Im so confused. Yes 2D. Swap X with Y? What do you mean negate?

[gentle urchin]

Basically make sure that when an obstacle spawned on either sidez the other side cant spawn one within a given amount of time/distance

[light pilot]

Yes understand your intend but I have no idea on how to set that up in a blueprint. Maybe you could lead me to a thread online with a comparable example or some screen shots on how you would set it up in the engine, if that's not asking to much?

[gentle urchin]

Busy atm so cant. But basically you need a random for picking a side to try and spawn (so its not always the same winning side), and then if it spawns, then dont call the tryspawn on the other side

Whenever one is succesfully spawned you want to start some timer or distance check to reset the check(and call the spawn event again)

[light pilot]

Alright I will try to find some reference for this online, thank you.

[torpid mulch]

Guys, I have two components on the same actor, but I can't find on the documentation how to reference each other on their blueprints, can someone tell me how?

[spice imp]

take the value after the minus in you graph. The output of the minus, not the divide. That gives you a 2D vector (x, y). Your perpendicular vector is (-y, x) or (y, -x).

[gentle urchin]

Usually you dont cross components

[cyan bone]

That simple? What? Im watching videos that look like intercontinental balistics.

[spice imp]

haha. It’s simple in 2D

[torpid mulch]

In this current situation the component is inside the player character and I want to reference its location, but I can't because I don't know how to acquire it

[cyan bone]

Ok i will try that. Thats the vector. The direction right? Then i have to add in offset in that direction, right?

[gentle urchin]

What component is this

[spice imp]

depends. how do you plan to use this perpendicular direction?

[cyan bone]

Im making a spline at run time. So i have 2 points, i get the middle point, then make a perpendicular line of like 500 from that point. Then that gives me a nice curve that i can control.

[torpid mulch]

Attributes And States, so for example when the player get dizzy/stunned, I want to get the character movement component and block movement

[cyan bone]

Am i doing this right?

[remote meteor]

usually you dont want components to reference other component

that would literally nullify the purpose of components

[gentle urchin]

Kinda breaks the premise of the component in the first place

[remote meteor]

you can ask the status component to have a event dispatcher that says, OnStatusChanged or something

then your player character will receive that and disables the movement component etc

[spice imp]

yes so you want to take your perpendicular vector. normalize it (make it unit length, or length 1). multiply that by 500 to get a vector with same direction, magnitude 500. add THIS to your middle point (the result of your divide in your blueprint)

[gentle urchin]

Stunlogic sounds like something that would belong in the character anyways

Or states, for that matter

[spice imp]

that gives you what you asked for. i'm not sure it will help you with your spline 🙂

[torpid mulch]

I see, my bad, a friend told me that components would be like different scripts on Unity, which I see is not.

[wicked osprey]

Guys, why my item go down slowly?

[torpid mulch]

I'm aiming on doing separated from the character because enemies also have it.

[remote meteor]

technically you can do component reference

nothing fatally wrong

just need to be mindful of the reference

movement component may still seems fine, since its a component that all character has

in return your "status component" now can only work on a character

[gentle urchin]

Almost sounds like a common parent class is easier.

With a set of applicable effects

Or just use GAS 😄

[remote meteor]

the idea of component is to have code as universal as it can get

[wicked osprey]

I made an overlap collision for the object and when I spawn it inside my Persian, it falls very slowly, and I would like it to fall immediately

[gentle urchin]

Well cmc kinda broke that didnt they

[remote meteor]

did it?

oh yeah

[gentle urchin]

Well

[remote meteor]

only works on a character

[torpid mulch]

I'm still a bit lost on how blueprints and components work on Unreal, I'm very new tbh, I didn't even know you could have a parent class lol

[gentle urchin]

Ye

[remote meteor]

still fair enough i think

[gentle urchin]

True

Its not required for a component to be usable with an actor specifically :p

[remote meteor]

yeah

[cyan bone]

@spice imp So something like this:
Or im doing something wrong? I feel that normalizing the 3d vector might be an issue?
https://blueprintue.com/blueprint/9vbtgm9t/
Thanks so much

[remote meteor]

@torpid mulch if you need, you can always access your owners component by
GetOwner()->GetComponentByClass<>()

but for that way you always want to do valid checks

since your owner doesnt guarantee to have the component

[torpid mulch]

Hm I see, to be honest now that you guys said, I probably have to study a better method to do what I want

Get to understand components and actors a little better

[remote meteor]

mostly you have 3 options

components

interface

and class hierachy

when doing stuff

[gentle urchin]

In your instance id consider parent class tbh

[remote meteor]

if you are up to it you can kinda think which ways suit it most

[torpid mulch]

Can I ask you how class hierarchy works on Unreal?

[remote meteor]

same as every progamming ever

😆

[torpid mulch]

That's good to know, less scary xD

[spice imp]

the math looks right. as long as you ensure that the Z components coming from Origin and Destiny are zero, the operations will work like 2D vectors.

[torpid mulch]

I'll take a look around, thank you so much Asaka and Squize

[spice imp]

alternatively, use actual 2D vectors and operations

[remote meteor]

you can always convert a 3d vector to 2d, do the operation and back to 3d (if needed) if you dont need the Z value 😆 if its easier to understand

a little overhead wont hurt

talking about where to do game logic

its definitely a good idea to have your code segmented nicely instead of all in a single actor

especially in a teamwork scenario

since you will be checking out the uasset until you finish

less conflicts

[cyan bone]

@spice imp dude you are a legend thanks so much

[spice imp]

ha! always nice to see the visual. no prob

just for completeness, another way is to use GetRotated2D or the 3D equivalent with an angle of 90 or -90. in place of the swap-and-multiply

[cyan bone]

I thought about that. "what if i just rotate the angle."

[spice imp]

the swap is probably slightly faster, not that it matters. also it's numerically exact

[cyan bone]

but swap is simpler yes

But could rotate 3d be useful in case im trying to do it in 3d ?

because in 3d the swap will not work maybe?

in 3d i will have to consider the mountains and buildings around. will be hard to create a curve path

[remote meteor]

can make use of AI Navigation, i guess, to get path points

[spice imp]

well in 3d you need an axis to rotate around. and in this case, that axis has to be perpendicular to start with. so i would still start with the 2D solution (lose the Z, or zero it). that gives you one of infinite perpendiculars. then, you can rotate that around the axis of your original vector (the one that points from start point to end point) to get the angle you desire.

[cyan bone]

i see. then i could just adjust the Z by line and hit result when vinterping

[mild jacinth]

question, when using 'play sound2d' node there is a tick for 'Is UISound' but i can't see the same boolean when using 'create sound2d' node. is there any way to get that boolean somehow for the 'create sound2d'?

[astral fiber]

If I define an event inside a plugin. Is it possible to have actors who listen to this event whenever it gets called?
How would I bind to it? I would to have to dispatch it somehow i guess?

[trim matrix]

Hi everyone, does anyone knows how to convert a json file into a Data readable by Unreal in a BP (construction script)

[remote meteor]

you have to do your own logic on that

using a switch

you can "convert" int to enum since enum is essentially a collection of byte

why not save the Player Role in enum?

[waxen trench]

Hey all 👋 how do you disable sets of variables when a setting is checked? For example, like in the Spring Arm component:

[remote meteor]

you can only do that in c++

it consist of UProperty Specifiers

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/GameplayArchitecture/Properties/Specifiers/#:~:text=EditCondition%3D"BooleanPropertyName"

[waxen trench]

Gotcha, thanks 🙏

[remote meteor]

if you still need, you can set SetIsUISound(true) on the audio component it returns

[mild jacinth]

thank you!

[cobalt gulch]

Hi I don't know if anyone can help in this channel but whenever I install market place content into my project it only installs the folders and not the actual content. The market place content does actually download which is weird..

[plain helm]

God this error again.

Failed to open descriptor file on android

I solved it month ago. But forgot how I did it

Who knows how to solve this error?

[fair oak]

I cant find the notify event for my footsteps in my animation everything is setup but i just cant find the node i'm on UE5 but all tutorials are on UE4

[tight schooner]

I've only dipped my toe into animation (UE4), but I'll say that I have a reference to my AnimBP in my actor blueprint's event graph, and from that I can bind to its notify events. Maybe that helps; maybe that doesn't.

#animation exists

[trim matrix]

Does anyone know how to set up random movement and player chasing in a procedurally generated ground/terrain?

[fair oak]

oh ok thanks

[trim matrix]

I can't use a pre set nav mesh cause the ground/enviroment is procedural

[fair oak]

problem is still not solved btw but i reposted it in #animation its kinda both topics

[trim matrix]

Hi everyone! do you know if it's possible to merge meshes in the BP? basically i'm reading 100 glTF which has many geo in it, some only 1, and i would like to automitize..

[ornate hatch]

Hey guys can someone tell me how can I make realistic predictable Sniper bullet physics system with blueprints?

[formal parcel]

Can someone help me with what I think is basic math that I just cant figure out

3x3x3 grid, if I say position 20 ... whats the calc to know its Z=2, Y=0, X=2

my brain just wont cooperate on this :/

[icy dragon]

Please do not crosspost unless redirected, see #rules

[obtuse herald]

Did you just deleted yor answer to write this? xd

[icy dragon]

Yes, I moved it to #animation

[trim matrix]

guys i need to process many object scale..
and make sure they all fit in a 10 units sphere

i guess i need to use the BBox of each object, but then not sure what to do .. may someone help me?

Anyone have 5 mins to help me with some Collision logic? it's an Enemy AI that needs to stop moving when it collides with my PlayerCharacter

but i can't get them to collide

[gentle urchin]

Modulo modulo division

This

[faint pasture]

Calculate bounding box diagonal length.

That's your sphere diameter

Scale by 10/BBDiagonalLength

[trim matrix]

Thanks @faint pasture ! Trying right away !

[trim matrix]

i did it like this.. is that correct?

used box extend to calculate bb diagonal lenght

[tight schooner]

there's a node, like Get Bounding Box

and it has a radius float output

or yeah, it's in your screenshot lol

sphere radius?

probably saves you from doing pythagorean theorem in 3D lol

[trim matrix]

ahahahah!!!

true!

let me change that to your get bounding box!

[tight schooner]

Get Component Bounds is what I was thinking of... You're already using it

[trim matrix]

oh yeah sorry

and use the sphere radius output

ok doing that

[trim matrix]

so at the end i have this

but not sure about the "Scale by 10/BBDiagonalLength"

[brisk wolf]

hello, is there any way to get array of all animations binded to a specific skeleton?

[late storm]

Is there a way with Blueprints to convert a char code (from a byte) to it's actual character

the Kismet Byte to String, just shows a visual representation of the byte value, not converts

[ruby ore]

ok just wanted to pop in here and say if anyone is getting a weird situation where they are opening a blueprint widget in UE5 and noticing some control flow nodes missing, keep that widget BP open, then go to your project and create another non widget BP like actor. the missing flow control nodes will suddenly appear again.

[sick plume]

I inserted a frame in my animation and now the montage stopped working. It just doesn't play even though the anim is fine. I tried removing the extra frame but the result is the same. Does nayone know what happened or how I can reverse the effects of this?

[trim matrix]

guys, anyone already tried to merge/combine static mesh in a construction script?

and if it's even possible?

[faint pasture]

You want it to fit in size 10. So scale = 10/size

If it was size 20, scale would be 10/20 or 0.5

[trim matrix]

yes 🙂 it is working great! thank you very much for your help 🙂

end up having to work 🙂

[faint pasture]

Maybe recreate montage?

[trim matrix]

Hey, if I wanted to have hybrid 1st-person, 3rd-person camera in a multiplayer environment, do I need to have different meshes for 1st/3rd person and toggle between them for the local player that sees through the camera?
or just putting the camera in the right location would do the trick?

I can modify a material to hide the rest of the mesh and only show the arms when it's in first person, but doesn't the mesh needs to be attached to the camera? if I do that wouldn't it ruin the way it looks for the players that are looking at it from 3rd person?

[mellow folio]

hiding parts of it with material opacity might work for first person.....but the "standard" approach is to just have a second mesh for first person

I suppose you'd also have to consider the impact of reflections in game for that too

[trim matrix]

that means everything attached to arms need to have a duplicate for first person,
but does sharing animations between 1st/3rd person work?

[mellow folio]

yeah that should be one of the easiest parts

it's possible for multiple skeletal meshes to share a "Master Pose Component" i believe it's called, which means they all receive animation data from that one skeletal mesh

for instance, I've seen the legs as the Master Pose component

but the skeleton driving it's animation has animations for every body part

so you attach arms to the legs, and the arms sort of inherit their movement from the legs

I'm not an animator so my nomenclature is a bit off

[surreal peak]

I do think that 1st person animations are slightly different than 3rd person

So splitting it into 2 meshes might be needed. But yeah, also not an Animator

[trim matrix]

Well I'm using the Lyra as my base project, it has a lot of things setup, including sharing animation between different meshes, thanks for the help.

[icy dragon]

Yes and no, you need different meshes if it's more of a dedicated FPS game where the player never enter third person view in gameplay, through normal means. Otherwise you can use the same mesh.

However, first person animations should be different than the third person counterparts (but with same timing), and it should be applied locally (not propagating to other player's POV)

[marble ingot]

Anyone know why this is happing? I've used select nodes a ton, but in this instance I only get the input options if I connect the wildcard to an empty name variable first.

[trim matrix]

I'm trying to make a stamina resource that drains when my character runs, but my widget progress bar shows no drain until it suddenly shoots to empty. Could someone help me?

sadly my timeline node didn't want to reset. a normal timeline hooked up to a keypress, and the timeline stuck on the end value.

[sick plume]

Unfortunately I tried that and it still is just still in the montage. The notifies still work but the animation doesn't play.

Also if I take the montage and add a backed up version of the anim it works fine. It has to have something to do with me adding the frame in the animation that's like corrupted it now.

[haughty axle]

question: i have camera following spline, is there any simple way to constraint camera to follow point? so camera would always looking to obj.

[supple bane]

anyone know what this 'success' node is called?

[trim matrix]

=

[supple bane]

.

k thanks lol

[trim matrix]

There will be two versions

= byte

and then another version

[supple bane]

yea didnt see that

[trim matrix]

= enum

you want the one that is for enums

[trim matrix]

The screenshot does not provide us with any confirmation on how the progress bar is actually updating. I assume you have a binding on your progress bar that gets the ResStamina variable from the player? Either way, I could see why you are having issues with your stamina... there is a few problems with the code in your screenshot. The approch you are taking to handle stamina regeneration/drain is not a good way of doing it at all. Sadly I would recommend scraping all of that code and starting over. Look into how Timers work. Im talking about SetTimerByFunctionName kind of timers. You should create a single timer that is responsible for stamina regen and drain.

[trim matrix]

You can easily program that yourself. Use the FindLookAtRotation node to then apply that rotation to your camera.

Thank you for the direction. I'm just following youtube tutorials so I don't know about the good practices yet

[trim matrix]

A tutorial told you to code that?

Exactly

What xD

Oh, I mean exactly re: the worry frog

There is a common thing that people will tell you

its that tutorials are bad

[rich jungle]

the people who know what they're doing are too busy getting paid to make tutorials >>

my personal theory

[trim matrix]

I dont even know what to say whoever made that tutorial

[trim matrix]

Well anyways, maybe find a new source of tutorials. Or even better, just throw your head against the wall until you can understand how to do this all yourself.

[supple bane]

is there a way to SET the sound of a Loudness NRT through blueprint?
im only able to find how to get it.

[icy dragon]

#ue4-general message

You never know what's right with yootoob tootorels. Lots of videos promoting bad practices and have terrible explaining

[trim matrix]

@trim matrix I have another question. Can I ask?

yea just ask.

What's the difference between a float and an integer?

Can they be used interchangeably?

Floats can have decimals

intigers are whole numbers

Ah, okay.

[icy dragon]

Float: numbers with decimals
Int: numbers without decimals

[trim matrix]

Thank you both

[icy dragon]

Ninja'd me on that one

(though to be fair I only have 73 WPM)

[dawn gazelle]

More mathematical info:
A 32-bit integer (what a standard integer is in UE) can hold whole numbers between approximately -2.1 billion and 2.1 billion.
A 32-bit float (what a standard float is in UE) can hold much larger numbers, but are subject to accuracy issues based upon how big the whole number is and how many decimal places are contained in the number. ( 1.175494351 E - 38 3.402823466 E + 38 are the min and max values). An example, you can try and use20000.5246 in a float, but you may not necessarily receive this exact number due to how floats are able to store such numbers (see example in image)
A double float (not sure what it's called in UE5, real?) is 64-bits, thus it can be much more accurate when dealing with larger numbers or decimal lengths.

[trim matrix]

Oh, so it has math issues?

[torpid mulch]

Hey guys, I would heavily appreciate help with this. I'm creating this circular array of lines, which works fine, but I wish the lines would rotate with my character, and for this so I made this blueprint trying to achieve it, I can get the X axis to keep the original position and rotate with the character, but the Y lines I can't. :(

This is what I got for now, the X lines are on their position and rotating, but the Y lines are on the middle on the wrong position and probably not rotating.

This is how it should look. (or what I wanted to look like lol)

This last screenshot is just location, without rotation to character direction

[trim matrix]

Is the unreal forums a good place to go for direction?

...oh boy, clamp?

"minus stamina decay from stamina and clamp"? That creates a drain? Edit: omf that was just what I was doing without the clamp

😵‍💫

[limpid lotus]

Use transform position with the actors transform, this will convert the relative spots (which will stay in the same place) into the world's positions which account for rotation and translation

So rather than adding the components location, you would use the transform position math

Realized I said actor, you can use the components transform. See which ones for what you're looking for

[onyx token]

question

this

works

i can send an interface on overlap to another actor

but this

doesn't work

(this is code inside my sword)

(with which i bonk the enemy)

[limpid lotus]

You need a damage type class

It's dumb, I'm glad Epic is phasing out that damage stuff

[onyx token]

oh

tbh, i'm tempted to just use an interface

[limpid lotus]

Honestly better to go with interface

Combine it with a damage interface component and then you can just go through the component

[onyx token]

damage interface component?

[limpid lotus]

Make an actor component class that's your damage component and then you just run calls to the actor if it has that component

[onyx token]

that is...

smart

i'll do that.

I haven't been playing around with components too much yet

[limpid lotus]

Yeah components help with keeping the functionality contained and easy to manage so all the actor has to do is manipulate what the component does

Plus if you build it right, you have components work together(optionally, not recommended to hard code that sort of stuff)

[onyx token]

ok wait-

But how can i influence my character using a component tho?

like if i have a "damage recieved" inside my component -
Can i get that signal out?

or do i have to use a float inside my component and just work with that?

[trim matrix]

Hm... I'm still having this problem where my stamina drain doesn't show up until the bar is empty...

[pine trellis]

is there anyway to change one variable so it connects to all the strings?

[onyx token]

oh nvm, i figured it out, it's apparently better to just do the entire health management inside the component

[mossy mist]

Hey my ai controller is always returning invalid

yet i turned on placed in world or spawned

the pawn is placed in the level

what is going on?

[onyx token]

hang on
So if i have my health on a component, and the interface is part of the component-

How do i use the interface?

my sword only has that, i can't cast....

do i need to implement the interface onto my character aswell - and then shove the signal over to my component?

[mossy mist]

bruh nvm i fixed it i had to pass in a "self"

[pine trellis]

how can we change oine node without changing all the strings>? like replace?

[trim matrix]

I took a video of the problem I'm having with the stamina bar

https://youtu.be/1vPbHhfLCxs

I moved to a timer by function name and followed what it said in that blueprint book but it's still doing it haha

😅

[limpid lotus]

Sorry was taking a phone call, you would instead "Get Component" from the actor and if it's valid then do stuff with the component

[onyx token]

hmm

this doesn't seem clean tho...

aren't you supposed to try and never cast?

like when i get damage, i'd like to get stunned, but that needs to somehow get into the animation blueprint of my character

So i have a character superclass, which all NPCs and the player are a part of

so i guess casting here isn't bad and it works...

But idk

if i didn't use a component, i wouldn't have to cast here

[limpid lotus]

Casting isnt that expensive. It's how many times your casting...

[onyx token]

sure, but it feels a little... hardcodey - like now only my character parent can ever get stunned

[limpid lotus]

Yeah it's fine to use the component, it's really just a different architecture of how you want to build things

Not really because the component is handling the generally shared functionality and you can get the component by class

[onyx token]

sure, but the component will always cast to my character parent

when i want to have like a Box that gets destroyed once it gets damage - it wouldn't work with this component

[limpid lotus]

Ok that means your not understanding the architecture, the component wouldn't be casting up to its owner

[onyx token]

no?

so how do i get to my owner? via interface?

[limpid lotus]

In this case the stun effect is something you want on the character when damaged?

[onyx token]

sure, or let's not call it stun effect, let's just call it "damage signal"

so i can do with it whatever i want in whatever gets damaged

like play a "box gets destroyed" animation

i guess i could use an event dispatcher to get the signal to my owner?

[limpid lotus]

Ok good, also what you would do is essentially in the component use the interface to talk to the owner without casting.
So:
Component - Takes Damage and then gets the owning actor(which is just an actor and all components can call stuff to their owner) and calls the interface function: Taken Damage.
Interface - has functions like Taken Damage and other optional functions that the component can call.
Actor - Implements interface, has the damage component, and overrides Taken Damage and does any other specific functionality like being stunned or whatever, this would also be the point where maybe taking damage calls to a "Health Component" and tells it to subtract 15 units or something.

[torpid mulch]

Sorry for the late reply, I'll give it a try right now!

[onyx token]

okay (thanks for helping me btw, you're awesome! )
But if i implement a damage interface onto my character anyways-
And i also implement one onto my component to get the initial signal-

Couldn't i just put all of that code into a function and not bother with a component?

Like this i need the interface twice
and i need 2 different interface operations

[limpid lotus]

@onyx token So the architecture for this is that the actor is just a combination of the elements that allow for damage to occur, BUT using the component for initially receiving it allows for a much cleaner and easier design. Because all its going to do is agnostically use the interface without knowing anything about its owner. And the owner only needs the information that the interface provides

[onyx token]

yea

the component recieves the damage directly from the sword via interface

and then i use another interface to send it to the character to do stuff?
Why not just send it to the character from the start?

[limpid lotus]

You wouldn't implement the interface on the component, the component can just call those functions

[onyx token]

wait- it can?

[limpid lotus]

Yup

[onyx token]

But how? I don't know which interfaces my owner has as the component...

[limpid lotus]

The component is just so you can quickly throw it ontu other actors and expect something to happen(if the actor is setup for it) and you can add/remove them at runtime basically avoiding things from breaking

[onyx token]

hm i see

so can a component just access any interface as an event in my entire project?

no... i can only message like in any other bp
i can't implement the interface event without adding it to the class defaults

[limpid lotus]

Yeah so to call to an interface you don't need it to be implemented, BUT you do need it implemented if you want it to do something on the receiving end.
Actor - needs the interface, maybe the damage comp
Component - doesn't need the interface

[onyx token]

wut?

am confused

[limpid lotus]

Uncheck the show related checkbox

I forget the name of it, on my phone atm

[onyx token]

context sensitive

[limpid lotus]

Yeah that

[onyx token]

i can't implement the event tho

[limpid lotus]

Not in the component

[onyx token]

wait, so i add a custom event into my component-
And my character gets the interface, and sends it into the component via custom event-

And then the component calls another Interface function and sends it back to the character?

[limpid lotus]

No your still trying to route everything through the character first

The character should be the last step

[onyx token]

wait but till now i routed it from component to character tho...

now i thought it's character > component > character

so it's not?

and it's component > character?

So it's
Weapon > Interface > component > interface > character?

[limpid lotus]

So first the sword checks "Do you have this component?" If yes, then call the function "Receive damage or something" you don't need the actor's class because you can use GetComponentByClass on any actor.

[onyx token]

ooooh you mean do the getcomponent on the sword

and call a custom function on my component

ok that makes more sense

[limpid lotus]

YES Just to double check show the BP? Just so a step isn't lost haha

[onyx token]

okay so do this on the sword

ok that makes sense

no interfaces then

[limpid lotus]

Yes, but valid check the component before calling the function on it

[onyx token]

i had a brainlag

[limpid lotus]

Yes

[onyx token]

thanks for being patient with me

and helping me

you are awesome and neat

[limpid lotus]

Because then you could build out lets say a barrel or crate and just add the interface to that actor and then say play a break animation when it gets damage, then add the component to the barrel/crate and it will just work

[torpid mulch]

Just to make sure I understood, you recommended I draw the lines setting offset on the relative transform of my player character, so on rotation the lines will rotate as well, is that correct? (I'm still learning)

[limpid lotus]

All good, honestly looking back on it, you could just use the offsets in relative space and then inverse transform the position

Might have it backwards, there's inverse and regular transform position, one of those converts world to local and the other is local to world. But the idea is that transforming the position from local to world will keep the rotation as you expect in a relative space

One sec, on computer. Booting up test project to show an example 😄

[torpid mulch]

Thank you so much for taking your time to help me with it :D

[tropic pecan]

Hey there, can I ask anybody on how to setup an overlapped collision in a way for if your in this collision, it ignores the other unless your in a part of the collision that is not overlapped with the other?

[limpid lotus]

Are you saying if a component overlaps the collision, that its ignored if another component in the same actor already overlaps it?

[tropic pecan]

Well, my plan is to create an battle trigger by their ambush behind or neutral battle hit with is the collusion surrounding the character. It seems the overlap of two collusions interferes and I'm trying to add up into a way where when you are behind the character on the collusion behind the character, it ignores the more surrounding collusion unless your only on the surrounding collision. Does that make sense in any way?

[limpid lotus]

No it does not...

[tropic pecan]

Let me see if I can show more details, give me a bit of time to do so.

You see that theirs a collision that fully surrounds it and there's a collusion that's just behind it? The one behind it is the ambush trigger. You noticed they are overlapped, since when your behind the character, the ambush trigger allowance should only be on and the other trigger shouldn't be allowed unless it's on the surrounding trigger instead without on the behind trigger. It's really hard to describe on text.

[limpid lotus]

Ok I think I understand, Im gonna repeat back let me know if it makes sense.
When going into ambush trigger you want the middle trigger to turn off?
But when you go into the middle trigger the ambush trigger should turn off?

[tropic pecan]

Yes, when you are in the behind trigger, it should't be able to trigger the surrounding trigger. But if your inside of the surrounding trigger without being in the behind collision, it should be able to trigger that instead. Something like if your in the collision, this one will not trigger such as like branch true or false.

[strong halo]

So you have 3 states: ambush, middle trigger, neutral - right?

[limpid lotus]

OK I can tell you how to do this(its not in the settings it with actual code BTW), as a heads up. You want to use the least amount of context words like ambush trigger and neutral battle hit and such as least as possible when describing this sort of stuff in Unreal Slackers because it helps with figuring out how to help

[tropic pecan]

Just ambush or neutral, enemy ambush is when enemy hits you which I'll do later.

[limpid lotus]

You can set the collision enabled value when one is overlapped to No Collision and then when they exit the collision turn the other back on to Query Only

[tropic pecan]

I'll need to take some time analyzing it then. I'll text you again when I'm done. Thank you for some of the advice, I do appreciate it.

[strong halo]

if it's for stealth - you could do it with angles, not collisions

depending on the context

[limpid lotus]

Yeah angles would be better than using sphere collisions

@torpid mulch BTW this is what I was talking about(in a simple way of showing it) also it was transform location so I apologize about the incorrect words

Sorry was literally waiting for the editor to startup on my computer... it did not wanna open even an empty project lol

[torpid mulch]

I'm sorry I don't quite get it. I have to get my Line Location transform and set it to be the same as the Relative Transform Location as the player transform? I'm sorry that I'm so confused over this.

[strong halo]

And I have a question:
Basically I have 2 player states with different controls: One is first person, the other is more of RTS-y mouse controls. In both modes you can interact with objects. In one case - by looking at them and pressing "interact", in the other - selecting with the mouse.

How should I tackle that architecturally? 2 parallel interaction system or force the mouse cursor into the middle of the screen for the FPS state?

[limpid lotus]

(Reposting so I don't have to scroll back up for it) So the return value in this picture is the line position in the world right?

@torpid mulch ? ^

[limpid lotus]

I assume your possessing two different types of pawns for that so the inputs for "Interact" would be different for either pawn...

[torpid mulch]

This is the macro I did to get the direction the player model is looking, the reason I was using it for this as well is because I was thinking that as the direction rotates correctly, the lines would as well, but wasn't the case.

Just re-explaining, If I set the draw lines to be on the lines location without any changes, they create the circle on 0,0,0 of the world, so I want to center them on player and want them to rotate with the player direction.

[limpid lotus]

Yup thats because you're using only one rotational axis which is annoying to deal with.
Ok so your trying to figure out the direction, OK great! There is a Transform Direction node that you can use instead. So you can give it a direction in relative space and it will handle the rotations with it. BTW You are not saving the transform, you are getting the result using the actor's transform

[torpid mulch]

(I'm sorry if I take some time to reply, my PC is dying lol)

[limpid lotus]

No you would use the actor's transform for T and the line's offsets into Location

[strong halo]

Inputs - yes, but the interactable objects? Currently I have the logic for receiving interaction on them, as an "onClicked" event.
Should I actually replace the onClick with a linetrace from the mouse , which would work the exact same way as the linetrace from the camera in FPS?

[torpid mulch]

As the offsets are they initial position, I just need to stick them to the player actor transform?

[limpid lotus]

Yes so the offsets will be in relative space, so when you run it through the Transform Location node, it will add the player's rotation with it so it matches. So you don't have to worry about rotation, and just worry about positioning it where you want

[limpid lotus]

Yeah I mean you're doing a line trace for both. Maybe making the receiving interaction part a bit more agnostic so you don't even have to worry about the different input types?

[limpid lotus]

Unless the interaction results are suppose to be different between RTS and FPS? If so then you'll have to just branch the code path from the beginning where it only calls to FPS_Interact and RTS_Interact

[strong halo]

Yes, those are differend. If I'm unifying the code for receiving interactions, I guess that can be solved with an interface method for interactables that would receive the interacting pawn reference, and from that - know what mode the interacting player is in

[limpid lotus]

Yeah I mean. It would be good to use the interface and basically have two interface functions per mode so on the RTS pawn when interacting with the mouse it first checks Can Interact RTS and if so then Interact RTS is called. And vise versa.

So all the actor has to do is implement it for those code paths via the interface(and probably just override the Can Interact X and set it to true/false.

[strong halo]

I'm not sure why would I need 2 finctions, not just one

[waxen trench]

Hey all 👋 , sorry for double posting. I'm not entirely confident this is strictly a #plugin-dev issue or also involves some blueprint issues. 😅

I'm working on building out a plugin that provides (hopefully) quick and easy camera functionality for an RTS game. I'm planning on releasing it for free on the asset store, however, I tested importing the plugin into a new project and none of the inputs are triggering for some reason 😓 I'm pretty new with Unreal and the plugin depends on the Enhanced Input Plugin. Any thoughts on why the inputs might not be firing? The main blueprint is the AC_OpenRTSCamera component https://github.com/HeyZoos/OpenRTSCamera

Here's an example input action, I feel as though it's a configuration issue of some kind, I can hook a print up that event and nothing gets printed at all. But it works just fine in the original project the plugin was developed in 🤔

[tropic pecan]

Okay, I've look into the disable/enable collision helped with just trigger the back collision though wouldn't re-enable the neutral after outside of the back collision which I already guessed what to do to fix that but I'll do that later. For the angles you've said, I'll look into it later as well cause I'm pretty tired to researching. I don't know how angles would work so I'll have to work on finding out that as well just like the level streaming. Again, thank you.

[icy dragon]

Btw cossposting without redirect is against the #rules, as it may cause confusion on people who frequent on multiple channels.

[waxen trench]

ah gotcha, I'll delete the original then, sorry about that

[wise tide]

Is there a console command or something to show hitboxes for my capsule overlap actors?

[tight schooner]

Type help in console

And then use searchbox. Idk if there's a command offhand

[wise tide]

hrm, doesnt seem to be one

[royal trellis]

hello. if i use a landscape layered blend node for the materials...how can i set a different phys mat for each one?(to have different sounds)
if everything was a different material is easy..but using landscape blending , not sure

[torpid mulch]

Thank you so much, you saved me hours of headache, it works perfectly now! :D

I didn't knew the transform nodes had so many nice shortcuts, thank you for showing me

[royal trellis]

i figured it out

[fading oyster]

Hey, so recently I wanted to clean some of my code. I decided to use this function to get the player character using a pure function on a function libary yet it seems it never returns the character.

Trying this code else where works fine but in a function libary it does not, and I have no clue why and Im trying to understand please let me know if you can explain why this issue would maybe occur?

This is the code I used to get it

[silk cosmos]

Uh you can use get player character instead of get player pawn and you don't need world context plugged in

[fading oyster]

Yeah still returns invalid for some reason 🤔

I am also using this function in a macro libary, maybe this is the reason?

[silk cosmos]

Um maybe. I've never used them in a macro library.

[fading oyster]

Doesn't seem like it since it doesn't return valid on actor too

[fading oyster]

Yeah me neither 😂 Thats why I thought it was the reason turns out it isn't

[trim matrix]

I would recommend against creating function library's for this purpose. It really is not hard to manually cast to the correct character class when needed. If you include this inside of a function library, you are basicly saying that your BaseCharacter class always has to be loaded.

[silk cosmos]

You can use an interface and that should avoid the always loaded part

[trim matrix]

In this case it may not be that big of a deal, but if you start relying on these kinds of librarys. Your project can become a mess of hard references loading various things in.

[fading oyster]

Yeah, I just wanted to keep it very simple node to node, because I am using a macro that just calls a montage and I can't think of a way of getting the player on the macro without plugging in it

[fading oyster]

Yeah I don't really use FL's just wanted to do this since it doesn't work on a macro directly

I can do it in the macro too, but it still somehow returns invalid

[silk cosmos]

Generally you shouldnt use cast. But interfaces are the workout for that.

[fading oyster]

Yeah I've heard they aren't that optimized

But I have them like everywhere 💀

[trim matrix]

Casting is perfectly ok.

You just have to understand the totality of what will be loaded when you cast.

[fading oyster]

I dont sadly 😂

[silk cosmos]

It's okay, but not ideal. There's better solutions most of the time

Though interfacew can also get confusing if you have them everywhere

[fading oyster]

Yeah but my macro libary cannot really use it

So I tried to use a function libary, but somehow get player character returns invalid on macro and function libaries

meanwhile it returns valid on actors

It does not actually

[silk cosmos]

I've used it before in FL with an interface setup

Are you casting to the correct actor?

Try using a print string and checking what's happening and what's getting grabbed

[fading oyster]

I think I know why I got it,

Thanks for all the info & help guys

(The reason was because the actor this macro was called on was not the character, its a different pawn that the player possesed)

So the player character isn't the base character but the possesed one 💀

[solar bison]

Why does this not work as intended. It opens and closes the widget once btu doesn't work after that

Do I have to remove the ref to TradeBlockWidget to get it to work?

[trim matrix]

yea

try that

[tiny bay]

is there a way to make an object orient towards what the player is looking at?

[trim matrix]

On the event tick of the object you wish to rotate, you can use the function FindLookAtRotation to find the rotation.

[tiny bay]

oh sick, I'll try that, thanks

[solar bison]

Can someone tell me if I'm laying out my UMG correctly? I'm having analysis paralysis

It's a card game...I have the cards shown on a widget called GameUI.
But I need to use the same cards in a trade operation, but ideally I wouldn't like to keep it on the gameUI widget
so I created a widget called "Trade", but it needs to use the cards from the gameUI widget

How do I architect this...can someone help

[tawdry mural]

if card was a separate widget you could just spawn them in Trade with same information as GameUI

[solar bison]

I can already do that

but I don't know what feels "right"

think of like...solitaire. but you can trade cards with other players

Would you have your own hand shown to you in the main UI widget, or as part of a trade widget so it makes it easier to initiate trades?

[tawdry mural]

completely your choise 😄

[trim matrix]

Your creating the card game in a widget? Wouldn't each card be an actor in the world?

with the camera positioned above?

[solar bison]

not in the case of my game, it's not exactly solitaire

the cards don't do anything, they're just resources

[solar bison]

correct...I'm trying to think about

1. cleaner code/architecture with a separate trade widget
2. cram everything into Widget_GameUI but no issues with accessing stuff

[tawdry mural]

separate in that case

[solar bison]

why?

but the problem is my hand, the cards I have, technicaly belong to Widget_GameUI

don't you think?

[tawdry mural]

idk about that

but i wouldnt cram just for faster compile time sake

[sage shale]

Where are some tutorials for things like explanations about things that aren't complete basics like how to use the content browser but more on things like event dispatchers and mid level ish things like that? All of the tuts I can find are either a super general basic beginner tutorial and all of the more advanced things are all individual so I don't know what all I'm missing or not ;-;

[ornate hatch]

hey guys! anyone have time to talk a bit

[gentle urchin]

During my tutorial period a few years ago there was no such thing as mid level tutorials , perhaps it has changed but i wouldnt be surprised if it has not

Many people here has tried to explain dispatchers tho. Is it those you're wondering about specifically ?

[solar bison]

Does clearing a Map remove all of its keys?

[gentle urchin]

Yes

[solar bison]

so I have to manually add all the keys back with values 0 again?

[gentle urchin]

Thats what clear does yes

Make a custom flush function :)

[solar bison]

sad

So much effort just to update UI omg

[gentle urchin]

Not that much work tbh

Grab all keys, foreach, set value for key

[solar bison]

that's teh thing, I don't have key

the key doesn't exist if I clear the map right?

[trim matrix]

He is saying, don't clear the map. Instead create your own function that just sets the map values to zero. Use that instead.

[solar bison]

got it

I need to pass by reference to make edits to the map right?

[rotund marlin]

can you make an actor ignore world partision? so it loads no matter what cell is loading

[trim matrix]

If you want to plug the map into the function, then operate on it, yes.

[solar bison]

where map is pass byref

[trim matrix]

Place the actor in the shared level.

or persistent level its called?

yea. there

[gentle urchin]

No, just use the key and add to the map

Like that sure

[rotund marlin]

Oh rappy? Where do one find that

cus thinking for actors like the things handling sun, foilage etc, so they load even if player aint within it

[solar bison]

this is good I think

[trim matrix]

Are you on UE4?

[rotund marlin]

nop ue5

[trim matrix]

I am not sure then. They most likely moved and changed it.

[gentle urchin]

May I ask why keep the keys if the values are 0?

[solar bison]

Because I still need to show 0 on my UI to the client

in case the client owns 0 of a particular card

[gentle urchin]

If card key doesnt exist, then value = 0

[solar bison]

what?

[gentle urchin]

So when updating ui

You simply do "does key exist?" If not then return 0, else reutnr its value

[solar bison]

ok does it matter though?

[gentle urchin]

Nah

[solar bison]

there are multiple ways to do this right

[gentle urchin]

Was just curious

[solar bison]

yeah I don't want to deal with null refs

in case I accidentally try to get a value but key doesn't exist

so I find it safer to always have the keys present

even if value is 0

[gentle urchin]

Is the key a ref ?

[solar bison]

ref meaning?

[gentle urchin]

You said null refs

[solar bison]

it's not, it's just an enum

[gentle urchin]

So ref being a ref to an object/actor

[solar bison]

if the key doesn't exist then doesn't matter if it's a ref or not, won't I still get a "Keynotfound error"

?

sorry i meant key not found, not a nullref

[gentle urchin]

No errors

Theres a return bool

On the find key function

Anyhow, doesnt matter

[solar bison]

yeah my bad

i've done a lot of programming before .other languages i've written generally don't return a bool like that

they just throw an exception if it isn't found

so w/e, doesn't matter

[solar bison]

actually I'm probably gonna do this...because Unreal looks like it's very tailored to operations with the bool

makes it easy

[marble tusk]

I don't know if this matters for your situation, but something to note is the For Each Loop gets a copy of the array element and not a reference to it

[solar bison]

yeah that's fine

I'm assuming this won't work now since the keys are not present right

[trim matrix]

When you use the ADD node for maps. If the key does not exist, it will be created and the value will be set. If the key does exist, the value will change.

so it will work.

[solar bison]

dude that's so good.

So based on no. of resources, I can expect it to be the right value?

damn

i don't think any other language/programming env supports this, where Add() actually adds something if key isn't present

[solar bison]

Does it know that it has to start from 0 though? Since I haven't specified

[trim matrix]

The number of resources may be incorrect.

yea im not sure.

I would assume it would work since the defualt for ints is 0.

[solar bison]

What, what do you mean?

[solar bison]

Let's hope so. Gonna test in a moment

[trim matrix]

same thing you were talking about, the does it start from 0 thing.

[solar bison]

ok

[trim matrix]

Yes, find will return 0.

[solar bison]

You checked?

[trim matrix]

yes

[solar bison]

Damn, unreal is p intuitive that way

Do you know how I can bind visibility of a UMG item to 1 function instead of 5 separate ones?

But pass a diff arg?

I have 5 differente elements in a horizontal box that are all bound to different listeners, that do the same thing except take in a different value

[trim matrix]

you want to hide all 5 elements with one function?

[solar bison]

no

I mean yes. I want to hide them selectively

There are 4 elements: earth, fire, water, air cards
They are hidden based on card count. So if it's 0, don't show them. If > 0, show them

Right now I have 4 cards, and 4 different functions bound to the visibility

Was curious if I could use just 1 instead, to prevent bloat in my BPs

[trim matrix]

oh you mean binding like this?

[trim matrix]

Each element has its own binding?

[solar bison]

yep

[trim matrix]

Definitly DO NOT use bindings in this way.

Each binding gets re-evaluated on tick.

Meaning each of those functions gets re-ran every frame.

There is no reason to recalculate the visability every frame for every card.

[gentle urchin]

^^^^

Word

To live by

[trim matrix]

Relying on widget bindings is generaly the last thing you want to do.

[solar bison]

lol I get conflicting answers, just 2 days ago somebody told me it's ok

unless there's like a lot of computation going on every frame

[gentle urchin]

It is, untill its not

[trim matrix]

I mean yes, its OK. its not going to crash your game imedietly. But it is the worst practice imagineable.

[solar bison]

it's fine, I don't want to prematurely optimize. I had this exact discussion like 2 days ago

[gentle urchin]

Like, you can check a branch on tick aswell

Even tho you have the overlap event.

Doesnt mean you want to do it , when there are better ways

[solar bison]

what's the better way?

[gentle urchin]

Event driven

[solar bison]

why does unreal even provide this binding if nobody uses it?

[gentle urchin]

You only want to update it if theres a reasn for it to have changed

[solar bison]

mmm, event driven means I'll have store refs to all the cards and stuff

I'll have to change literally everything

[trim matrix]

You dont have a way to get the cards reference?

You definitly should make a way then.

[gentle urchin]

Not really and you can batch update your entire ui if you want to, whenever a card is aquired

[trim matrix]

yea.

[solar bison]

and i ask again, why does unreal provide this binding if nobody uses it

and why is it not even driven

unity has the exact same thing but it's event driven

I'm sure unrela has a reason

[trim matrix]

It is useful in certian situations. Sometimes its good to have a UI element update on tick.

It is also usefull for newcomers.

who just need an easy way to make a ui update.

[solar bison]

hmm, like health? or...? progress bar? or something similar?

[solar bison]

ok I'll refactor in sometime ig

[gentle urchin]

Not health

Damage is also event driven

[trim matrix]

a progress bar though yes.

if it needs to be smoothly changing. a binding can work.

[gentle urchin]

But only for a while 😄

[trim matrix]

yep

[gentle urchin]

Id personally just call the update on tick anyways 🤣

And handle my flow control accordingly

[trim matrix]

just delete the progress bar after

and yea ikr

[solar bison]

whatever

i don't think it matters

it's 1 widget

and they're bindings on like 10 elements max

I will refactor after checking profiler

[icy dragon]

Or go one step further with C++

[solar bison]

after my game is done

cba to refactor now

[solar bison]

i want to ship my game..i'm new to unreal

i will take forever otherwise

[solar bison]

and btw, I'd still rather do UMG/widgets stuff in BP

[icy dragon]

It's a shame UMG timeline can't work with variables like BP Timelines

[gentle urchin]

Huh

[icy dragon]

I do UMG/widgets in both BP and C++

Want to at least make my UI more stand out on interaction and animation

[solar bison]

Can someone explain to me why my button is not clickable?

It's enabled..it's visible etc etc

Is it a z-ordering issue?

[trim matrix]

99% of the time, there is something in front of it

[icy dragon]

Yea, without some weird workarounds, animating vars in UMG Timeline seem to be not possible.

Which is necessary for me to make dynamic UI animation

Though at least for Final Fantasy style hand cursor, I can just sideload the Timeline to HUD class

[solar bison]

go on

[gentle urchin]

That sounds really strange 😅

I like the sideloading method, showing the engine that we can despite it saying no 🤔🧐

[solar bison]

what do you suggest I do to do check what's going on?

[icy dragon]

See if Widget Reflector detects something consuming the click

[solar bison]

Checked, it's not

[gentle urchin]

And make sure you dont override on mouse button down in the widge parent

Those dont play nice with UButtons

[solar bison]

It's weird cause there's another widget I have on the level where a button works just fine

ooof, it was setting state to not hit testable

That's why!

[nimble talon]

Where is Float/float node? (i cant find it)

this one

[gentle urchin]

Ue5?

[nimble talon]

yes

[gentle urchin]

Just divide

Its generic now

Wildcarded

Instead of specific/specific

[nimble talon]

ok

thx

[icy dragon]

I think there should be a pinned message explaining that, in UE5, math operators are made universal and have wildcard input pins.

[gentle urchin]

Its weird that its throwing so many people off imo

But it was weird being specific in the first place i guess

[solar bison]

@gentle urchin so..how do you suggest I handle bindings instead of tick? I want to move away from tick now cause I have like 20 buttons. Yep, exactly 20 buttons where and 10 text elements where visibility needs to be controlled

Don't want to update 20 buttons visibility + 10 text elements text on tick

The state changes when I click a button, should I just create a variable for each button/text, and set text/visibility there when state changes?

[icy dragon]

How does events like On Clicked won't work in this case?

[solar bison]

That's what I'm asking you, should I use OnClick?

OnClick -> Call a function -> Function does operation, SetsText, UpdatesVisibilityOfOtherButtons()

[icy dragon]

If it's just running everytime you click on it, yea

[solar bison]

yeah

or should I use event dispatchers to keep it cleaner?

[trim matrix]

Do all the buttons need to be hidden/shown at the same time? or does each have its own unique visabity?

[trim matrix]

and no, dont worry about dispatchers.

[solar bison]

each have its own unique visibility

i.e if the count of somehing is > 0, then I show the button

Remember, cards. If I have more than 0 water cards, then I show the water card button

If I have 0 or less water cards, then I don't show it

[trim matrix]

Yea

Just get the whatever box that holds all these cards. get all its children evaluate eachs visability on the button press.

Or like you said, promote each to its own variable.

[solar bison]

is that really more efficient than tick

[trim matrix]

yes very

[solar bison]

even if tick is not doing anything?

it's not repeatedly setting the var, there is a branch

only if the condition is satisfied, then it does something
even then?

[trim matrix]

from 20 calls every tick -> 20 calls every button press.

if you press the button every 3 seconds

[solar bison]

does 20 calls every tick translate to heavy operations, if it's just checking an if condition??

[trim matrix]

even event ticks that do absolutly nothing have an impact.

[solar bison]

well it probably does, since I'm not actually using a branch to update the text

[trim matrix]

3,600 -> 20

[solar bison]

ok ok got it

[trim matrix]

lol

[solar bison]

I'll just change the stuff up (via variables) when the buttons are clicked

xd

[trim matrix]

yes way better

[pearl moth]

What's up, i'm trying to do a climbing system. I except that it draws stuff once JumpAction is triggered, but it doesn't show nothing when I jump.

Here is the blueprints:

[rotund marlin]

How do you attach a blueprint to a foilage instance?

or im guessing that not possible and gotta put each Harvestable Tree/Rock by hand 0.0

[mental trellis]

Alternatively: make a custom "foliage" system that places things automatically for you.

[pearl moth]

Hi

Are you experienced with unodes?

/ blueprints?

[mental trellis]

UNodes?

I know nothing about jump events!

[rotund marlin]

Hmm.. not clue about unodes

[pearl moth]

unreal nodes

[rotund marlin]

Oh yeah, i'm aware of how to use blueprints fine, but wasent sure if it there was a way to attach BP into a foilage instance just, to avoid having to do it the hard-way

[pearl moth]

um idk

[rotund marlin]

Ah well guess i'll do it the other way of making a cube BP that traces ground to place the Tree BP's down and make a semi-fake foliage but works :p

[marble tusk]

https://docs.unrealengine.com/4.27/en-US/BuildingWorlds/Foliage/#actorclass

[rotund marlin]

Oh wow cheers fox, made me feel stupid 😄 how did i miss that

[icy dragon]

Did you mean Kismet 2?

[pearl moth]

unreal nodes

/ blueprints

whatever

So

I am excepting that it draws something

But it doesn't

Tutorial i'm following here https://www.youtube.com/watch?v=xgTusTOMa88&list=PLFwDYuS6Far1TD-EiPqvq2SVW3Q5U14bK&index=2
Timestamp 8:25

BP screenshots: #blueprint message

[gentle urchin]

What sets is on ledge true

[pearl moth]

?

wdym

[gentle urchin]

Wdym it doesnt draw anything

I assume you mean the code is not firing

[pearl moth]

um

[gentle urchin]

Thus i draw the weak conclusion that your branch is blocking it

[pearl moth]

goto 8:25 and u know what i mean

[gentle urchin]

What it says ans what you do is two different things

Doesnt help me to look at what the tut does.

[pearl moth]

Firing in what way

i mean

wdym

oh

Yeah

it doesn't activate

[gentle urchin]

Tried printing some strings?

[pearl moth]

yeah, nothing

i'm not quite sure if I should debug it

cause i 99% sure i've followed the tutorial correctly

[pearl moth]

I have fixed it.

[mild jacinth]

hi, when using scene capture 2D, there is an option for 'capture every frame', which I assume captures using something similar to event tick.
if I untick it, how am I able to capture only when player is in the view? or when specific blocks/objects move? scenecapture2D tends to take a really huge performance hit, and I was wondering if manually capturing would help?

[rose gull]

https://www.youtube.com/watch?v=4urwOWddbl8

does anyone know how to implement this?

using materials changing fov for certain objects

[swift pewter]

How can I get a reference to the player character in an animbp that doesn't belong to the player?

[spark steppe]

theres a get player method which takes the controller id as input

[swift pewter]

I tried using that and casting to the player but the reference is not valid

Also tried getting the animbp's owning actor and getting its owner, which would be the player, but that doesn't seem to work either

Actually nvm

[spark steppe]

but that should work

[swift pewter]

The cast only failed on InitializeAnimation, so I'm doing it on UpdateAnimation instead

[spark steppe]

are you attaching that childactor manually?

[swift pewter]

I use SpawnActor

[spark steppe]

and you spawn it as child or do you attach it after spawning it?

[swift pewter]

I attach it to the player mesh after spawning it

[spark steppe]

then initialize animation might run before it is attached

maybe you make an event in your AnimBP like onAttached, which you call after attaching

that event could store the casted player reference if you need it more than once

to avoid casting every tick

[swift pewter]

Yup, will probably end up doing that

[royal iron]

Hey guys! I have this actor as a "fake" projectile to go from the barrel to the end of the trace, but I can't make it to always look forward. Sometimes its sideways if I turn to a different angle. Could you help me explain what to do to make it always face forward? :T

[vague sequoia]

Someone who knows why I can't find the "execute python script" node in an Editor Utility Blueprint? I can find the execute python command node. (image is from a video)

[rotund marlin]

most likely missing a plugin jeroen

[royal iron]

Using InterpToMovement :t

Even the VFX is sideways as the projectile when I change angle

[spark steppe]

the order of combine rotator might matter

have you tried swapping that?

first the 90 deg correction, then your world rotation

[royal iron]

Hm, not but gonna try

Sorry broken keyboard 😂

Nope still poopoo

its just sideways when I shoot in front of me or back but forward when I shoot left or right xd

[spark steppe]

just noticed you use rotation from X vector

why?

[royal iron]

👀 to be honest not sure. I was following a guide but the guy's hint for fixing the rotation was "Make the projectile small so they don't see its not rotated"

😂

so I'm trying to figure out what to do

[spark steppe]

😄

you can probably just take your unit vector tho

and split it to yaw/pitch

[royal iron]

Oooh never did something like that. Also new to UE

[solar bison]

I'm trying to move away from using bindings for my text elements, (to avoid ticks), what's the easiest way to configure this in my BP?

[tawdry surge]

I just use custom events. no reason to get complicated

[solar bison]

@tawdry surge yes but it looks like this rn

There are like 6 text items, I have to switch through multiple items to SetText

Am I making a mistake by having 6 different child items for the horizontal box in the widget? Should I just create a separate widget?

[tawdry surge]

Depends if you're going to swap or re-use any of them.
Modularity is usually better practice in general

[solar bison]

I'm never going to swap/re-use them

So does it make sense to just cram them all into the Horizontal box as constant elements?

Lot of variables though, that's the only thing

I'd also like to keep it modular and have an individual widget for this, and pass data to that child widget.
But then it gets a bit complicated: that child widget has to call a function when clicked, which fires an event, which the parent listens to, and then the parent state updates, which changes some other widget in the hierarchy

[unkempt terrace]

Yo guys, any way to expose arrays or maps to the sequencer ?

[rotund marlin]

so i noticed me trying to do foilage actor ended up in a catastrohpe xd

[ocean arch]

Hey guys, I got this massive spherical overlap zone encompassing my map that is shrinking constantly on a timeline with begin overlap and end overlap events (a bit like a battle royale), but this seems to halve my FPS so apparently its very costly. Is there a better way to do this?

I know its the overlap zone alone, because when I take it out of the BP and only shrink the other stuff in the hierarchy the fps is maxing out

[rotund marlin]

no density option if its an actor my 2x 1080ti's did not like that many trees

[fair oak]

How can i get my animation notifier blueprint event the notifier exists but the event doesn't show up

[fair oak]

this is missing in that documentation https://docs.unrealengine.com/5.0/en-US/animation-notifies-in-unreal-engine/

[silk cosmos]

They only show up in anim blueprints

[fair oak]

i am in my animation blueprint sorry

the checkbox doesnt change anything btw

[silk cosmos]

Per the documentation, did you create a skeleton anim notify

[fair oak]

yes i'm asking both #animation and #blueprint btw because idk wich topic this is lol

the other skeleton notifies also don't show up

[solar bison]

Can I not add an item in BP to an array in the same BP? (In the editor istelf, instead of construct script/begin play)

[gusty axle]

If you mean "item" is an object or an actor - i dont think so, it should "exist" or be created

[icy dragon]

See #rules, crossposting is frowned upon, for good reason.

[fair oak]

ok yeah

i think #animation is a better channel for this since its a animation blueprint

[icy dragon]

I can't stress it enough, stick to one channel until you're explicitly redirected by someone to more fitting channel.

I have been confused many times because of questions getting crossposted without someone else redirecting.

[gusty axle]

Can anyone help me with Procedural Mesh component collision? I generate the mesh in BeginPlay event, i set Create Collision and Complex Collision flags on but still the mesh have no collision

If i put the generate function in Construct script it does work but if the actor was already on the level, if i spawn another actor with Procedural Mesh it will have no collision

[solar bison]

I mean for example, I have an array of Texts as a BP property
I also have individual texts, each as BP properties (because of widgets)
Can I add them in anyway?

Without doing something like this

[mental trellis]

make array?

[gusty axle]

Yeah theres "make array" node if you mean that

[gusty axle]

engine version 4.25 oof

Is that a bug or im missing something?

[icy dragon]

4.26 reign supreme (if free Oodle/Bink is retroactive to that version)

[solar bison]

Make array?

And then I can jsut plug in my elements from the editor?

Hmmm, wasn't aware. Closed the editor for now. Will try later

[gusty axle]

Yeah if you need to make an array out of items without giant "add to array" nodes chain use Make Array

[willow gate]

Hey dudes. Quick (hopefully) question: I have an array in my BP that acts as an inventory. I have added a finite number of elements to the array in the variable (not in the bp or at runtime) because I want this array to only ever be 8 elements large. I am trying to use a for each loop to find the first "empty" index so that I can insert a child object into that index. I'm using remove/insert because I want to preserve the structure of the array when adding/removing objects as I know that arrays elements will move up in order when things are removed. Valid Index and IsValid aren't working obviously because the array has 8 elements by default. I'm basically trying to find the first available slot that is just the parent class and not a child class so that I can insert a new child there. Wow I guess this isn't quick and probably a very confusing question.

[gusty axle]

Is that a "struct" array?

Btw theres a "set array element" node

[gusty axle]

If it is a struct array you can use "find" array node and make the input pin empty, it will search for "default" struct item

[spark steppe]

do yourself a favor and use a map

with integer as key for the slot index

a.) you don't need to init dummy items

[willow gate]

It's not a struct array. It's an array of actors.

[spark steppe]

b.) you can check kind of easy for the first free slot

c.) stuff doesn't get shuffled around from using array methods

[gusty axle]

Oof idk how ppl use actors as a base for inventory h

[willow gate]

I was trying maps at first but I didn't understand it well enough to access individual indexes. My system is supposed to be simple where you have only 8 objects in this "inventory" of things you can build. I want the player to be able to walk up to a new item and when they interact with it, it checks the "inventory" to see if there are empty slots, if there are, it inserts the object into the first empty slot. If there are no empty slots, it just swaps out the object in the currently selected slot. I can swap fine using remove and insert. But you're saying with a map I could use int as a key. I guess from what I was reading, I was thinking that the keys were generally used as values like ammo count or number of items but I guess if I hard-set those keys to a set value, I could use them as indexes. Is that what you're suggesting?

[willow gate]

Yeah, I haven't done it this way very often. I have another inventory system in another project where I use a struct/data table setup, but for this usage, that's alot of setup for something that doesn't need to be that complex

[gusty axle]

Isn't it the same as a regular array?

[willow gate]

It's not open world or anything where I need to keep track of hundreds or thousands of items.

[gusty axle]

I think struct based system is easier hh

[willow gate]

Yeah... perhaps you're right.

[gusty axle]

You basically store the string as an item name and string array as a property and just get the data from data table like texture, mesh etc

Two arrays: static item struct that has all static data like textures and default variables, and dynamic item struct that has a string as name and string array as properties

I setup this stuff in half an hour lol, have 3 projects with this system and its very easy to work with, just data

And you can easily save the inventory

[willow gate]

I think you're right. The irony is that I was trying to simplify the system I normally use and it's overcomplicated instead. lol

[gusty axle]

And empty items in the array aren't that bad h

[safe iron]

Heyyy
I have been playing around with the shooting in my game and there is something that doesn't seem right about it
It's about the aiming and stuff, that feels unprecise, not really unresponsive, but it's like I can't aim at the target as I can easily do in other games, which also makes it feel less fluid
This is the blueprint I made in the character blueprint, can you tell me if everything is right or it's because of something I didn't put here?
Does it happen with you as well?
Might it be that the Sensitivity is too high?

[gusty axle]

It might be sensitivity and/or smoothed camera movement idk

[safe iron]

smoothed camera movement?
You mean, the fact that it might be on or off?
Never heard of that

[gusty axle]

I know that you can attach the camera to Spring Arm, set to not check for collision and set the distance to zero, and tweak the "rotation lag" that smoothes the camera movement

But idk if theres an easier and more simple way that works as good as this one

[safe iron]

oh, ok, I'll try that out, thanks a lot

[gusty axle]

Np

👽

[willow gate]

Thanks BTW. I'll get to work on a struct/map system

[royal iron]

Hello everyone! So I want to be able to drop the weapon when I input G, but so far every detach I tried failed and nothing happens. (Yes I turn off event generation for the duration of a drop so the player wont pick it up again instantly) any idea how could I solve this?

[gusty axle]

I would use "spawn actor" for this

Have an attached mesh component that changes its mesh depends on item player is holding

Btw theres "detach from" nodes

[royal iron]

Basically this is the FPS template from Unreal, I just want to be able to drop the weapon because in UE5 it became a "pick up" item. It was in previous versions parented to the FPS controller

Yeah I tried them all nothing happens

[gusty axle]

Does the mesh have collision on?

[royal iron]

Of course not

[gusty axle]

Lmfao

Add collision

[royal iron]

I mean its on when you pick it up

I dont understand where you're going with this now 😂

[gusty axle]

Do you enable collision before detaching it?

[royal iron]

No. When its on the ground, player walks through picks it up disables overlap events, when I press G i want it to detach and gets dropped to the ground because of physics and after 2 sec it gets its overlapping events turned on so it can be picked up again

Everything works as a charm just I cant drop it with G

[gusty axle]

After you press G you have to enable physics collision and simulate physics on, then you detach the component/actor

[royal iron]

I have collisions and physics enabled when G is pressed and when I try to detach nothing happens still in hand.

That's why I tried all the detach nodes and nothing worked

[gusty axle]

What is your full graph on key G event?

[silent pilot]

Im not sure I understand the difference between world rotation and local rotation, can someone explain?

Im simply trying to make my camera movable using the mouse

[mental trellis]

Location rotation is relative to the attachment parent.

[gusty axle]

World rotation is an absolute rotation, like the real rotation in space

[silent pilot]

So in this case, mouseX should rotate locally and in the world space?

[gusty axle]

Local is relative to its parent

[silent pilot]

I see

[royal iron]

Don't mind the detach node I was trying to figure it out

[gusty axle]

It rotates the controller, control rotation is world space

[gusty axle]

Oof use add yaw/pitch nodes

[silent pilot]

This does that

[gusty axle]

And enable "use control rotation" in spring arm component

[silent pilot]

It's pretty fucked up XD

[gusty axle]

Because you rotate the camera by X axis

X axis is a "forward" vector

[silent pilot]

Yeah I was testing, I used yaw as well

[gusty axle]

Rotate mouseX to yaw and mouseY to pitch

[gusty axle]

Youre trying to detach the "FP character reference"

U think you need to detach the mesh itself

[silent pilot]

It doesn't do anything anymore now :(

[royal iron]

Told you dont look at the detach node it was just my last attempt xD

[rich jungle]

did you enable controller input?

[gusty axle]

Because it uses control rotation

[silent pilot]

Haven't touched that, what is it, and where do I enable/disable it?

[gusty axle]

To rotate the controller use "add yaw" and "add pitch" nodes

[rich jungle]

setting on the spring arm, it's what lets controller yaw/pitch whatever actually work

actually

[gusty axle]

Oof lmao

[rich jungle]

it's on the pawn for me*

[royal iron]

So I tried it like this now and still nothing happens when G is pressed

[gusty axle]

So when you pickup the item you disable the collisions (not overlap events, physics collisions), disable simulate physics and attach the mesh to bone?

[silent pilot]

I don't have "pawn"

[royal iron]

I only disable simulate physics and overlap events

[silent pilot]

Im using UE4

[rich jungle]

oh

sorry

[silent pilot]

np

[gusty axle]

Do mesh have physics collisions and simulate physics on before you pick it up?

[royal iron]

Indeed. It has a capsule collision and as soon as the player walks through it attaches

[gusty axle]

And when you press G nothing happens at all?

Like it doesn't disappear or anything

[royal iron]

Nope stays in the hand 😄

[gusty axle]

Put "print string" node after detach

[royal iron]

Doesnt even jiggle or drop or smth. And in hierarchy I see it still attached

[silent pilot]

This still doesn't make sense to me. How is it possible to rotate something in the world without rotating it relatively to the parent component? And vice versa

[gusty axle]

Check if it executes the branch

[gusty axle]

Well that's how it works, you can rotate in world space or relative space

[royal iron]

I added print to as soon as I press the G and NO PRINT . Like is G something editor doesnt recognize or what?

[gusty axle]

Yeah your action doesn't work

[rich jungle]

I think it's like: rotation 0 = world rotation zero vs local rotation 0 (which inherits the attached parent's direction)

when you use world rotation, it figures out what the rotation relative to your parent is for you

[gusty axle]

Check the inputs

[royal iron]

Okay I HAVE AN IDEA

[silent pilot]

So world rotation = local rotation + parent world rotation?

[mental trellis]

not really?

[mental trellis]

It'd be parent world location + (parent rotation * local location)

[rich jungle]

up is world rotation 0

red = parent's rotation

if you use world rotation, for a child object of an actor facing towards the red arrow

you'll see the thing looking straight up

because the engine calculates what "world rotation" means in local space for you

if you use local rotation 0 it ignores the world and just makes it face towards the red arrow

world rotation is like a compas

the needle always points to real north

no matter which way you rotate the compas

[silent pilot]

hmmm yeah ig I see what it means

[rich jungle]

:)

[gusty axle]

World location of a child = parent world location+ child local location

[silent pilot]

But I still see no difference between "add local rotation" and "add world rotation"

[gusty axle]

Rotation is more complicated

[silent pilot]

That's exactly what I said here @gusty axle :(

Wait

[tight schooner]

Ultimately it's a thing attached to a thing. A bus driver in a bus. A missile on the wing of a jet fighter. A child on a merry go round. As the parent rotates, all the other stuff attached to it can move relative to world space too.

[silent pilot]

Edited it

[gusty axle]

You used rotation in location oof

[silent pilot]

Yeah my head is exploding sorry meant to say rotation everywhere

[gusty axle]

Add world rotation rotates the object by world global axis like straight up for example

[silent pilot]

I UNDERSTAND

YES

THX

[gusty axle]

Local rotates around parent's axis for example

[silent pilot]

Ez

[gusty axle]

Np

[solemn crescent]

BP is working,
but I’m struggling to incorporate it into my project.

Keyboard key that positions a 2D card according to a camera.

I tried making the cam a BP-actor,
and the 2Dcard as a shape inside the Actor.

Making the CineCam an actor prevents it from parenting under the nDisplay.

I’ve heard I can make an empty pawn to capture the keyboard events and the transmit them to the objects in the level.
How do I go about that?

[gusty axle]

Id draw it but im on the phone lil

[silent pilot]

Love to get that "click" in your head

And then everything becomes more clear

[gusty axle]

Lmao yeah that happens

[gusty axle]

So you want to make it like, if you press the button the other objects receive that input?

[solemn crescent]

Yes exactly.

[runic urchin]

Is this the correct way to set up a camera going in and out of a trigger zone