blueprint

[tight schooner]

It's fundamental to blueprinting

[lyric holly]

i need that

thanks!!!!!

i am really just getting into bp from learning mostly on the c++ side

but i see how important blueprints are

[winged thicket]

ok cuz my for loop is broken and the answer i got didnt help me much, reposting^^^

[hardy fable]

It looks like you or someone else edited the default for loop macro. Or it just randomly borked, but that's pretty strange. In any case I would suggest you go to another project and double click on a for loop to access the macro and copy it back to this project. I imagine you can click on the borked one and paste the correct Contents inside

[winged thicket]

hmm yep someone (or me) deleted it in some point, im testing in this project for a long time so maybe i did it

[hardy fable]

Well hopefully a new/another project will have it intact, or you'll have to re-download the engine or manually rebuild it to recover it, if it's actually gone from the engine files

[winged thicket]

Reposting a reposting ^^

[dawn gazelle]

This is what it should look like inside your for loop

[icy dragon]

That, or if the damage is so bad, verify the engine installation (which even then can't guarantee if it always worked)

[hard charm]

Guys how can I stop a root motion of an animation by blueprint and then activate it all by blueprint

[fossil osprey]

Ok so hear me out, I am making a machinegun with projectiles, but I don't want to make projectiles to spawn and be destroyed, I'm trying to use the object pooling method on them, and so I don't know which one would be more efficient,

Option A: Have 50 static meshes as components on the gun, upon firing, one of these meshes is shot( i will probably use a for each loop), its collision, visibility/hidden and ticker is enabled, after 0.1 seconds the 2nd bullet is shot, etc. until it reaches the target, when the target is reached, the bullet is disabled and hidden.

Option B: Have the same 50 static meshes as actors inside the level, upon firing, one of these actors (there will be an array inside the level blueprint called) gets gun location and target location and moves there, its collision, visibility/hidden and ticker is disabled until its shot. After 0.1 seconds the 2nd actor is called, etc.

[open crypt]

You need to find every single level you load and make sure they are not loaded at all first

remember that a persistent level is simply the one that is currently "opened" versus streamed levels, which are streamed ONTOP of a persistent level - your trigger volumes are disappearing because you are changing levels from that persistent one - check your "world settings" and make sure your default map is set to the one that contains your trigger volume

[timid flint]

Can I make a text render component not receive any shadows?

nvm, I've setup a second lighting channel

[odd ember]

why would you not want them to be spawned and destroyed in this case?

[fossil osprey]

well essentially i will end up having 300+ bullets in my game, it will be wave based, so imagine having to fight 100 actors each shooting 100 bullets, it would cost a lot

I will still have bullets spawning but that would be like a capacity per wave most likely

[odd ember]

you think your solution is cheaper?

[fossil osprey]

probably, what i usually do is i have 2 projects, one the basic way, and one the experimental way then when i play the game i run it in "new editor windows" then i press CTRL + shift + ,(coma) and tells me performance and other details im concerned about

[odd ember]

you're not going to get any real performance data until you run it in standalone

but I don't understand why you're even concerned about this not having even implemented a basic version that works first

[fossil osprey]

lol i do have a basic version implemented where bullets spawn and get destroyed just thought maybe theres a way to make it cheaper, not that its an issue but i want to have more room to add other things that i might come up with

[odd ember]

but you dont even know if performance is going to be an issue yet

[fossil osprey]

yeah i want to counter the problem before it comes, im making a space game so im planning on having a giant ship as a boss, but that in itself harms performance (tested it on my friend's phone), so im trying to save performance for as much as possible in the beginning instead of going back and changing everything

[odd ember]

I mean how are you even going to know that you've optimized enough when you don't know the full extent of the issue? it makes no sense to optimize until you know what needs to be performant and what doesn't

but it's your project, so if you want to spend more time going in circles trying to optimize things instead of making a working prototype, don't let me hold you back

[fossil osprey]

I mean if you think about it, there's 1000's of bullets, spawning and destroying them can become performant, changing this just by 5% multiplied by all 1000 of these bullets would give me higher ceiling of what i can have in my game but it seems like quite a lot of work, i will probably try to optimize other things before i tackle the bullets haha

[odd ember]

you're not going to know what you need to optimize until you have the full picture

it's easy to fall into the trap of going back over what you know or have done but that's not how games are shipped

[fossil osprey]

ah i see, wdym by "thats not how games are shipped"?

[odd ember]

games are shipped by making a working prototype first

and then making sure that working prototype works performant

until you have all the variables, you don't know which variables you need to adjust

[fossil osprey]

ohhh i see, yeah i guess we would have to ship it first, thanks for the advice, I will look at it from that perspective then

it will cost me time but as you said, better to fall for the trap than to struggle

[odd ember]

if it's your first game, you can't expect to make it perfect either

da vinci didn't paint the mona lisa as his first project

[quartz pawn]

How do you get the controlled player pawn from a player controller?

[odd ember]

get the project working, see what fails, learn from those failures, take that experience with you to the next project

isn't get controlled pawn literally a getter function?

[quartz pawn]

seems so

guess im blind 👓

Blueprint Runtime Error: "Accessed None trying to read property CallFunc_K2_GetPawn_ReturnValue". is an error I get when trying to possess a pawn.

[odd ember]

your pawn isn't valid yet probably

[quartz pawn]

what do you mean by that

[odd ember]

wait why are you destroying the controller

[quartz pawn]

its destroying the pawn

[odd ember]

debug it

with breakpoints

you'll be able to see where it goes wrong

maybe the pawn hasn't spawned yet

[quartz pawn]

the function executes whenever the pawn hits something

so it should be spawned

[odd ember]

even if the function executes, something inside the function could go wrong

[quartz pawn]

its the spawn actor

[quasi frost]

What is the node called that swaps between each use. I cannot remember its name lol. Like swip swap or switch swap or something lolol. I don't remember.

[quartz pawn]

flip flop

[quasi frost]

thanks lol

[quartz pawn]

anyone help

[dawn gazelle]

GetPawn isn't returning a valid value. Can you show some of your code where this is happening?

[quartz pawn]

this is in the character btw

anyone?

[odd ember]

I mean I said already that you can probably find the issue using debug breakpoints

hard to say what's wrong just at a glance

[quartz pawn]

i tried but i don't know what to look for

[odd ember]

you can look at values

if you hover over the values you can see what they are currently

at each step of the way

so if your pawn is null (which it seems like based on the error) you can see where exactly it returns nullptr

[quartz pawn]

the pawn seems right

the transform is righ

its not spawning the actor

[odd ember]

try to adjust the collision settings?

[quartz pawn]

still

[coarse forge]

oh hello bp people!

if im in my hud bp.. how does one call a function on my main character?

what is the node for that

[odd ember]

how do you spawn the hud

[coarse forge]

good question

let me see

assigning it here

as part of the world settings

then events on my character like this launch widgets that are in the hud

[odd ember]

is the hud spawned already?

[coarse forge]

well like this.. missing a node

yes

spawned at game initialization

[odd ember]

where is that logic?

[coarse forge]

{
    Super::NativeOnInitialized();
    MyNativeOnInitialized();
}

[odd ember]

in which class?

[coarse forge]

thats my hud class

[odd ember]

yeah but in which class do you spawn the hud

[coarse forge]

the full hud or the widget

[odd ember]

the widget

[dawn gazelle]

Use this node then cast to your character BP class.

[coarse forge]

so player character.. then cast.. then I can call functions?

[odd ember]

the better way is to pass the player as a reference to the widget when you spawn it

that way you have a reference inside the widget that is always correct

[coarse forge]

is that the owning player here?

[odd ember]

and always referencing the player for whom the hud is relevant

I think that's controller

but yes, same concept

[coarse forge]

ah

k thx

ill try some things

single player.. so.... yolo

[glass crypt]

Is there a way I can plug in a red delegate wire without having to drag it from the event?

[spark steppe]

you can drag from the delegate input, too

to create an event for example

[odd ember]

create event node yeah

[glass crypt]

Oh ok cool. Create event worked. Thank you.

[quartz pawn]

can anyone help?

[fierce birch]

hello all im trying to spawn coins within a box collision. the result varies from spawning within the box to spawning outside the box. how can i make it consistently spawn within the box?

box collision

result

just using the reg infinity grasslands template

[runic terrace]

Is it possible to create a function with wildcard variables? I know it can be done in C++ but can't seem to find a way to do it in BPs

[fading raptor]

How would i go about getting a collsion socket from 1 pawn, and getting a collision socket from another pawn, and move 1 socket to the other

I want to make a player mount onto a horse, I made a socket at the player butt where it would be on the horse, and i made a socket on the horse saddle where the player butt would be

Im trying to use attach actor to component but i cant get it to work, let alone make it a smooth transition

When i do "Get socket location", it prints out all zeros, so i was also wondering how to get the world location of a socket?

[runic terrace]

To get the world location of the socket you can use a transform location node

using the world transform of the skeletal/static mesh that owns the socket

[fading raptor]

its still printing all 0s

MountPoint is the name of the socket on the horse, this snippet is in the player bp

[runic terrace]

You didn't use Transform Location node

wait

[fading raptor]

Im pretty sure i set it up wrong, because its still all 0s

[runic terrace]

Just realised Get Socket Location already should return world-location

Are you sure the socket name is correct?

[fading raptor]

Yes its correct

hmm i did what you showed above and its still all 0

[runic terrace]

is it in construction script?

[fading raptor]

no its in the event graph

whats the difference?

[runic terrace]

That's weird it's returning 0

[fading raptor]

So i set up the same code in the horse blueprint, and it prints correctly

hmmm

maybe its something to do with the mesh for some reason

[runic terrace]

It should return the same value outside of the horse bp as well, perhaps the mesh reference is not correct?

[fading raptor]

thats what im trying to figure out

I have armor on the horse, but its a different name so imnot sure

Its literally the same code and same mesh, i made a reference to the mesh in the horse bp then called it in the player bp, and its still not working

why is this so dumb

[runic terrace]

can you screenshot it?

How are you getting the reference

[fading raptor]

i cast to the horse and created a variable

thats in the player bp

thats in the horse bp

[runic terrace]

But how did you acquire the HorseV3 Reference?

[fading raptor]

Do you think it has to do with the get player oawn

i always guess that the object is til i dont get an error

[runic terrace]

That would get the player character

[zinc blade]

anyone know anything about this?

[runic terrace]

not the horse

[fading raptor]

oh my god

[zinc blade]

do I just restart or

[fading raptor]

then what should the object be

[runic terrace]

You need a way of finding the unique horse actor the player wants to interact since there can be multiple horses in the level

For example when the player wants to mount they will interact with the horse, that's when you get the reference either via a linetrace or something else

[fading raptor]

i understand what you mean

itll be a multiplayer game so that will be needed

but how would i have a seperate object for each horse

[runic terrace]

Linetrace returns a single actor

so if a player interacts with the horse, a linetrace would return the exact horse actor the player is interacting

assuming the linetrace points at where the player is looking at

[fading raptor]

ohhh

so once i do that, how would the cast look?

[runic terrace]

Something like that

Assuming LM1 is the interact button

But it wouldn't be this simple, the player isn't only going to interact with a horse the whole game.

You need to come up with a logic on how to handle that yourself

[runic terrace]

What's the issue here?

[zinc blade]

I'm selecting on the inherited object, and I can't get its Details?

(details panel blank)

[fading raptor]

Ok i understand, im trying to get it to work rn

[runic terrace]

I can't reproduce the problem, works fine on me

not sure

[rancid steppe]

I can't import any anim from maximo

I need help

[runic terrace]

can you send the output log?

probably an issue with the root bone

[open crypt]

download sharecast - it's free and easy to use screenshot taker - literally puts it on your clipboard - you hit CTRLSHIFT printscreen and then CTRL V in this window

[runic terrace]

You can also use win+shift+s

[rancid steppe]

ok

[runic terrace]

Can you please send what is written in the output log?

[rancid steppe]

ok

[runic terrace]

ding ding

Make sure when you download the animations from Mixamo, key all frames is checked

[rancid steppe]

its also error

i can import only with skin

when i download without skin and import it to folder its error

[light token]

Hello people. I made a little quest system for my game. Now I want to add the Quest. How do I instantiate the quest? At this point i derived it from Actor. It's actually just a data class without the actor things needed. Could anybody help me get that AddQuest node filled and working?

[maiden wadi]

@light token If your quest is derived from Actor, then you'll just call SpawnActor with it's class.

[light token]

Alright! So thats the best way. Thanks a lot going to try this out!

[dreamy solstice]

right so i want to make the guns ammo chamber and the charging handle to move when shooting

this is my current layout

i tried using a bonespace node and it didnt work

what node do i use?

[timber knoll]

That should just be animation

You can start an animation when you shoot, and let the animation tell your script it finished

[dreamy solstice]

so i have to animate it?

[timber knoll]

Yep

[dreamy solstice]

can animation BP do?

[timber knoll]

Or at least, that would be the easiest way I know

[dreamy solstice]

ok then

[timber knoll]

Yes animation BP should work just fine

[dreamy solstice]

alright thanks

[timber knoll]

But if its only shooting/reloading it might be a bit overkill 🙂

I usually go for animBP when dealing with a lot of different animations that need to blend

Such as characters

[dreamy solstice]

ill go for animBPs

unless ill have to ill animate

also is there a layout or node i should use?

i never used animBP before

and i guess its the perfect time to learn it

[timber knoll]

Wait wait

AnimBP won’t animate it for you btw

[dreamy solstice]

oh

[timber knoll]

It still needs it’s own rig etc

[dreamy solstice]

so i have to animate it then use the animBP?

[timber knoll]

AnimationBP is the brain that drives animations based on the nodes and states

[dreamy solstice]

i see

alright then thx

[gray lantern]

Is it possible to have one mesh in the BP attached to the rig on multiple sockets

eg. the mesh gets duplicated across all the sockets I want to attach it to?

[coarse flicker]

For whatever reason the text is never updated (The print statement gets called) I don't understand what's wrong here. Any help is appreciated. I feel like i'm missing something obvious.

[rose elbow]

Anyone know how to apply damage via line tracing?

[timber knoll]

or any custom damage function / health interface instead of Apply Damage

[rose elbow]

I have my own damage system so just replace Apply Damage with that?

[timber knoll]

exactly

[rose elbow]

Great, thanks

[candid nest]

hey i need a help i have a scen in which it is evening but i want tht in my room the room should be dark and exterior it should be evening only how can i do that the room is geeting light of evening and it is a close room

[timber knoll]

#graphics or #lumen if you're using lumen

blueprints can't fix your lighting

[candid nest]

okay thanks buddy

[sand bloom]

I want to track a vr controller's position after pressing a button and do an event when it hits a certain location

Right now I am doing this by saving the old relative location on button press and comparing it to the current relative location and then using add and minus to change the location of the old relative location

this system seems to work fine, I managed to put a cube there on a button press as you can see in this video example

the issue is.. nothing is happening, like the cube test system works fine but my actual system does nothing when i move my controller to the good location

the levationcheck is triggered somewhere to keep firing every 0.3 seconds to check if i'm in the right spot yet

I'm just really confused why my cube test system works and my actual system.. doesn't

I would love to get some insight because i am quite stuck

the inrange float checks the current controller location for the value

it uses the old saved location on buttonpress with a add and subtract for the y and z axis

upper inrange is for y, lower one is for z

it seems to be related to the y value

when I set the y branch to false it works when i move up

When I set the z branch to false it does not work when i move to the side

[rose elbow]

So i've done this but when the line trace hits an enemy it doesn't apply damage, anyone got any suggestions?

[brazen pike]

You're going to want to connect "hit actor" from the break hit up to "damaged actor" in any damage

[rose elbow]

that works thanks alot

also the line tracer seems to have a bit of a delay on press? you have to hold it down for a second to get one to come out

[sand bloom]

what's interesting is that the y value works when it's in the plus/right but not when it's in the minus/left

[brazen pike]

can you post the rest of the bp?

[sand bloom]

not sure why

[rose elbow]

ok so its this thats causing that but i'm using this for the fire rate too

it was at 0.25 when it had the delay

setting it to 0.0001 = no delay

[brazen pike]

you shouldn't have to hold it down to get it to work, especially if its a timer

[rose elbow]

lowering the timer makes it so there isn't a delay between me pressing left mouse and the line tracer actually appearing

when I had it at 2.5 if I just clicked the mouse it wouldn't show I had to hold it

[brazen pike]

you could set up a sequence before the timer and connect the sequence to the timer and a call for the event. That way it fires instantly and starts the timer

[rose elbow]

sorry 0.25 *

won't adding a delay just after fullautofire work?

nvm

[rose elbow]

how would that look?

[sand bloom]

So I did more testing and both values update fine, but my inrange bool just straight up doesn't work

even if it's as close as possible

moral of the story? i'm an idiot who doesn't know basic math and didn't know i had to reverse my min and max values when i subtract vs adding

😩

[brazen pike]

Also just check for me real quick, does the "set timer by event" node have anything in the "initial start delay" field? You can get it by clicking the arrow at the bottom of it

[rose elbow]

yes it does

[brazen pike]

And does it work if you remove it?

[rose elbow]

it's at 0 by default

[brazen pike]

okay

try this

[rose elbow]

that works, thanks alot man, greatly appreciated 🙂

[brazen pike]

np

[vestal acorn]

Any hints on how to change the aspect ratio of the cinematic camera? Basically this here returns f1.77 then f0.5 - so it keeps resetting the aspect ratio somehow.

funny enough it will return f0.5 then f0.5 if the camera if the camera isnt blended

or posessed, tried that as well

for a normal camera it works fine, but for the cinema camera its not working :/

[gentle urchin]

Engine bug?

[vestal acorn]

Nah, I think I found it out on how to do it with cinema camera

(for filmback settings - its missing the aspect ratio itself sadly, only sensor width/height)

And then set its members

[wary shadow]

Does GetWolrdRotation return yaw, pitch and roll in degrees or radiant?

[tight schooner]

degrees

+/- 180 except for pitch which is +/- 90 IIRC

[wary shadow]

Thank you, so in order to get radiants is okay to multiply by π/180?

[tight schooner]

I couldn't say lol. I haven't done much with radians

[worthy tendon]

yes, but there is a node for that. it's called D2R

[wary shadow]

Oh fine thank you! What’s the left block name?

[worthy tendon]

break rotator

[wary shadow]

Nice thank you I’m oretty new to blueprint 😅

[earnest tangle]

Doctwor Node

[royal rain]

So if I post some screen shots later of the blueprints of an asset later could someone help me modify it do I can edit it the way I want. I'm not at a pc rn. But I would really like help figuring out the asset to use it the way I need it to

[tacit cliff]

need help here, is there a way to put these two nodes together, thinking i will add more pickups later so I dont have to cast to each everytime i want to call the pickup

[opaque blade]

possibilities: (depending on how different they are from each other)

• make a blueprint base class for them and inherit from it (rebase the existing ones), this way you have common functionality in the base class
• make an interface (downside is it cannot have variables), but you are not stuck to the same inheritance tree
• make a component - can have common functionality, variables and is not dependant on inheritance tree either, but might be harder to extend / overwrite functionality (especially in pure BP projects)

[tacit cliff]

i will try thanks

[trim matrix]

how do I make these?

[faint pasture]

Those are parameters, just convert a scalar to a parameter

[sweet birch]

hey guys, how can i get the selections on a sphere trace like shown in this picture? new to blueprints

[trim matrix]

the values dont correspond

[odd ember]

right click on hit result > break struct pin

[trim matrix]

how do i change it to a 2 value point

[sweet birch]

ohhhhhhhh

yeah i looked into enums but i thought its weird that the guy would do that if in that scenario hes only using 2 outputs

thanks guys

[odd ember]

not sure where enums figure into the question tbh

[trim matrix]

nvm

its not a 2 point value

its just 0.9

and 0.6

[sweet birch]

think its cos visually similar :p

[trim matrix]

but the quality was rlly bad

[odd ember]

not sure why people are asking material graph questions here either but w/e

[faint pasture]

You set the values. Do you understand what a parameter is?

[odd ember]

yeah, parameters have nothing to do with the question?

unless you mean the cpp & out parameter, but again, that has nothing to do with the question?

[sweet birch]

one more thing while im here, i cannot at all find this set thing, its not a variable or something right? I think its something common that is just not something i can find after 10 mins of trying 😩

[cinder raven]

im trying to set a camera to smoothly move between two transformation with a timeline, when I do this with lerp transform it looks like either keeps adding or maybe multiplaying the coordinates and it overshoots where its supposed to go

[odd ember]

nah that's someone's custom variable @sweet birch

[cinder raven]

could someone help me with that

[odd ember]

but it's probably using the Out Hit Impact Normal

so if you just make a variable and hook it up to that, it should be fine

[trim matrix]

how do I make this into this

[odd ember]

#graphics

[trim matrix]

its not graphics

its a bp

[odd ember]

material graph isn't the same as blueprints

[cinder raven]

This is how its setup and I would like the camera to stop once it reaches CameraTransform1

[odd ember]

any reason you're not using set view target with blend?

[trim matrix]

graphics = performance not Mat bps

grow up kid

telling people not to ask for help

[cinder raven]

woudnt even know im very new

[trim matrix]

thats so toxic

[odd ember]

lol

[odd ember]

<@&213101288538374145>

[trim matrix]

anyone know what this blueprint is

how do I toggle opacity

[limpid lintel]

@trim matrix take it to #graphics , that's a material not a BP

[odd ember]

set view target with blend may save you the trouble if you're using two cameras. transforms can be iffy if they're not set to be in the same space

[cinder raven]

so itd probably better just to set up as many cameras as I need and use set view target with blend? I'm trying to make the camera cycle 90degrees around the character on button press

[faint pasture]

@odd ember whoops I responded to the wrong guy. The guy I was responding to was wondering why his parameter didn't have a value of 2000.

[cinder raven]

I'm gonna try this thank you for the reply and your time

[trim matrix]

thats literally what im saying

this is so silly

[faint pasture]

#graphics

[torn kettle]

:triangular_flag_on_post: BaBa#2667 received strike 1. As a result, they were muted for 10 minutes.

[limpid lintel]

don't test me today

Material questions go in #graphics

[woven wing]

Woof

[torn kettle]

:no_entry_sign: BaBa#2667 was banned.

[woven wing]

Thanks.

[limpid lintel]

@trim matrix any further questions?

[trim matrix]

please dont ping me

I dont like getting pinged, i dont have a headset

[limpid lintel]

That sounds like a you problem that's easily solved with the volume knob. Please read the #rules and behave accordingly.

[woven wing]

One thing to maybe try would be to change SetRelativeTransform to SetWorldTransform.

Depending on where you got your target transforms from.

[ancient torrent]

Is it possible to convert inherited components when removing parent actor?

[woven wing]

I think SetRelativeTransform is going to take your actors transform into account?

[summer jetty]

Is using trigger actors with blueprints better for level streaming compared to streaming/trigger volumes? Or does it not really matter (different method for same result)? I've heard volumes tend to break when publishing the game so blueprints are better?

[odd ember]

sadly not as far as I know. BPs are lacking in refactoring tools

[cinder raven]

its the character's camera that would follow them, thats what I would want right?

[ancient torrent]

Crap, thanks for the fast respons

[woven wing]

It really depends on where you're getting the original transform from.

[woven wing]

Yeah, this has bitten me in the past.

[cinder raven]

I had set up the cameras and took their location and rotation and made them transform variables

[odd ember]

I just looked into how I do camera. I work with RInterp or FInterp and avoid transforms

assuming this is third person

[woven wing]

The methods that you use to get their location and rotation is gonna change the resulting transform, and then how you use that transform is going to change the results.

It can be annoyingly fussy. Sorry. : )

[cinder raven]

Ok thank you both, im gonna experiment a bit thanks for the help

[ruby prism]

I'm relatively new to Unreal Engine and I'm using UE4. I've been playing around with the FPS project and was wondering how I could stop the bullet drop from the ball being shot out the gun. I've been looking at the blueprints but can't find anything blatantly exclaiming what causes the drop.

[lusty wraith]

hey guys, can anyone see any mistakes ive made here? Ive been trying to fix this for hours and cant get anywhere.

[woven wing]

Iirc, the FPS tutorial project uses physics objects as the projectiles.

So I think it's gravity that is causing them to drop.

[woven wing]

It looks like a lot of your objects aren't initialized or set anywhere.

So like "Q2Message" doesn't appear to be filled out from anywhere.

[ruby prism]

Yup, found the gravity.

[lusty wraith]

ah, i see. Ye, Ive been adding things like Q2Message as a variable on the left hand side. Im guessing thats not right then.

[winged thicket]

hello there, i was trying to make 2d noise and it kinda of worked but it make this weird shapes:

and its just a test, i know.. its spaghetti

[woven wing]

Variables are 'slots' in a particular shape. They're designed to hold things - but they are not the things themselves.

Somewhere, that object has to be created and put in the slot.

[winged thicket]

if my code was so spaghetti to understand what i did:
random value for X and Y,
a var called (Was) that saves what X was before, and a simple 1d noise based of X+Y that when it ends:
X reseted to (Was) Y get changed a little bit and it move to the right a little bit, and var (Was) get changed a little bit too.
Loop a few times and i got this:

[odd ember]

maybe I'm missing something, but what's the point of making noise in BP?

how do you plan to use it?

[trim matrix]

why is my thing not red

[winged thicket]

for sure i wont use it, i'll need to turn it into C++

[soft scaffold]

Hi! I have a really complicated problem. I have a projectile which movement is controled by a timeline. My problem is start when i shoot multiple projectiles, because the timeline cant start a new track for another projectile, so the last projectile dissapear. Any idea to fix this?

[woven wing]

In the first image, the red nodes are the BP's Event nodes. They define what happens when the event is called.

In the second image, those blue nodes are used to call the previously defined event.

So they're different sides of the event.

Red nodes define what happens.
Blue nodes define when they happen.

So if you had an event called SayHello, it's red node would be responsible for printing the word "Hello", and it's blue node would be used to decide when to print the word hello.

[odd ember]

I mean I would maybe consider it for something like a material function in HLSL, but even in cpp I'm not sure how you'd make use of it? what can you make with noise in cpp?

[trim matrix]

oooohhh my god that makes so much more sense than what I was thinking

[trim matrix]

bless you

[woven wing]

👍

[odd ember]

now I'm wondering if you can actually make heightmaps in BP for landscapes

would be interesting if true

[winged thicket]

does anyone know why its doing this?

[lusty wraith]

ok i see. how would you go about creating the object?

[woven wing]

It's going to be very contextual to your project and scenario.

[odd ember]

without knowing anything, it could be you're only multiplying both values during a single loop, instead of a nested loop pattern for each axis

[woven wing]

In your example, I have no idea what QMessage2's class is, so it's hard to say.

[winged thicket]

wdym

[odd ember]

how do you know about making noise and not know about nesting loops

for (x axis)
for (y axis)

[halcyon grove]

this is probably one of those things where straight doing it in the compiler is better, but is there a way to populate structure variables from a spreadsheet instead of manually typing them in?

[winged thicket]

just show me an example

[odd ember]

I don't have ue open

I just showed you how to do it in code

[lavish wadi]

I don't think so, but ideally if you need data from a spreadsheet you use a DataTable

it allows you to import a CSV easily and store it as a Map of Struct you can access later

[winged thicket]

you didnt

[odd ember]

this @winged thicket

[lusty wraith]

i appreciate that was a really dumb question sorry. basically Q2Message is a blueprint consisting of a widget that has some animated text. I am trying to press a button - Q2Button - and have the animated text pop up -Q2Message. At the same time, i want the button to also activate some moving targets. So i gather thats why im having the issue of nothing working becasue i have tried to pull them by adding them as variables and picking them in the drop down menu. When you say create, so you mean somewhere in the current blueprint?

[halcyon grove]

yea i didnt think so and I've done this quite a bit was just thinking a copy pasta instead of hit "new" type variable would be very efficient but anywhoes

🍿

[winged thicket]

can you explain? you just said for (x axis) for (y axis)

[dawn gazelle]

for (x axis) { 
     for (y axis) {
         // do stuff here that references x and y axis.  This will go over all possible values of x and y.
     }
}

(Simplified)

[odd ember]

yes taht

[halcyon grove]

a hero emerges

lol

[woven wing]

Ah, OK. One sec!

[halcyon grove]

I am also now learning about nested loops 🙂 https://www.youtube.com/watch?v=H7frvcAHXps

[odd ember]

yeah I mean a google search for the term would give you much better explanations

[woven wing]

OK, so here's my understanding of what you're trying to do.

• you have a button
• when you click the button, you want to show some animated text and do some other gameplay stuff

There's two ways to do this, you can make the animated text part of the blueprint with the button, or you can dynamically spawn the animated text when you click the button.

[lusty wraith]

precisely

[quasi frost]

So does clear and invalidate just permanently kill the timer? I want to kill it and re start it over and over but it seems to only work once. I added do once with a reset to try to stop it from deleting it again for some reason and it didn't work. Any idea how to stop a timer without permanently stopping it?

[halcyon grove]

I would disagree that y would be the columns xD

i also think he's putting x and y in the wrong places in that video

[woven wing]

I would probably make the animated text part of the main blueprint, and just have it be invisible until the button is clicked.

Then, all you have to do is change the animated text's visiblity.

And it will pop into existence.

[winged thicket]

so i need to make a loop for Y axis and a loop inside it for the X axis? i've watched a tutorial from the same guy and i dont think he did that

[sweet birch]

trying to get a target like shown on a set variable here

[lusty wraith]

im so confused

[sweet birch]

cannot

[odd ember]

yeah, that way you go over all values

[woven wing]

So right now, you have two widget blueprints, right?

One with the button.

One with the animated text.

Right?

[lusty wraith]

these are what i have currently. Im working mainly withing the Q2_button_bp to execute everything

[winged thicket]

but i did:
loop X, end = do n Y (50), and loop X again,
and when looped Y 50 times it print the mesh
isnt that the same?

[woven wing]

OK, is the animated text supposed to appear near the button (as in, there is one piece of animated text per button), or is it in the middle of the screen, or is it displayed in the 3D scene near the targets?

As always, the best way to do something is going to be extremely contextual to the specifics of your scenario.

[odd ember]

nope. but also, try it and see why it's different

[winged thicket]

ok i'll try a nested loop, 1s

[lusty wraith]

this is how the scene is generally set up. im hoping to duplicate this process for around 8 different buttons

[woven wing]

Ahh!

OK. That's clear. Thank you for the diagram.

[dawn gazelle]

Yes. If you call StopCardHover your timer will completely stop. You can pause timers.

[woven wing]

(diagrams are great!)

[lusty wraith]

lol 😄

[trim matrix]

Hey bro I understand your trying to help people but can you please post that in #cpp

Last guy got banned for this

[lusty wraith]

worth a thousand words or something is the saying

[glass stump]

if i wanted to have a moveable tripwire type thing attached to an enemy (follows it) would i do the trip wire as a seperate BP and somehow have it follow the enemy? Or would I do it as part of the enemy?

[woven wing]

So in this case, because you have basically one place you want to show the message. It makes the most sense to have a single 'MessageDisplay' object that is in the map (like your button is there) but have it be hidden by default, and then have the buttons tell it 'Hey! Display your message now' and have it become visible.

(I do not know why this discord decided against letting people make threads, it really makes these channels much more confusing)

[woven wing]

How... would a tripwire follow an enemy? Like, is it attached to the enemy's foot?

Do you a diagram?

[glass stump]

You want a diagram? ok one sec 😄

[halcyon grove]

100% yes sorry didn't know that kind of content was not allowed on this channel, many apologies.

[glass stump]

maybe a motion detector would be a better word

[halcyon grove]

and thank you for pointing that out actually.

[trim matrix]

@halcyon grove Hey man don't worry about it I'm just looking out for you

[glass stump]

@woven wing

[halcyon grove]

yea i really really appreciate it I use this discord a TONNE

[woven wing]

He didn't get banned for posting in the wrong channel, he got banned for posting obscenities after a mod told him to move.

[odd ember]

tripwire following you around sounds like low key horror

like no matter where you go you trip

[woven wing]

So, don't worry. You're not gonna be banned for posting in the wrong place as long as you're not a huge asshole about it.

: )

[glass stump]

basically like there's a device attached to the enemy that displays a laser beam coming out of it. and if it detects you you get discovered

[lusty wraith]

the message has two different animations, one for transitioning onto the screen which im guessing with ur method could be deleted, and one for if the correct target was hit (part of the text changes colour to reveal the right answer). with the 'MessageDisplay' thing you mentioned, can i still keep the animation or is it just for revealing text?

[glass stump]

i wasn't sure if i do the laser seperately or not.

[halcyon grove]

yea the video was more about theory than straight "c++" but still it's not worth a ban for me

[winged thicket]

wtf?

[woven wing]

Oh neat! OK. Hmm - I'd probably make it a component - because then the laser could be reused between enemies.

[dawn gazelle]

Nothing wrong with responding to something that is on topic with a video that is still conceptually on-topic.... My 2 cents anyway.

[winged thicket]

this is kinda cool ngl

[woven wing]

The idea that I'm proposing would be to have an object that is always in the scene that handles displaying and hiding the animated text.

Whether or not 'the object in the scene that handles displaying and hiding the animated text' decides to display that text with an animation - that's up to you, it totally can, it could not - it's entirely up to you.

[glass stump]

Oh that's a good idea! I'll look into that. :)

Thank you! :)

[woven wing]

👍

[odd ember]

do foreach x, for each y, random height (x,y)

[halcyon grove]

😇 yes I believe so

[winged thicket]

wdym random height (x,y)?

[odd ember]

whatever function you use for noise

just take both coordinates into account

[lusty wraith]

ok i'll look into this more. thanks so much for explaining all of this to me 🙂

[winged thicket]

making the same shape

[woven wing]

Good luck!

[winged thicket]

@odd ember its making the same shape

[odd ember]

ok show your code

I assume you're using vectors for this yes?

[winged thicket]

X and Y are floats, but i save the locations in vectors so i can make a mesh with them

[odd ember]

you should multiply instead of adding

at least from what I can see

on the noise that is

[winged thicket]

something so weird happening, it sometimes give me this, and the other times give me this: there is no middle point

[odd ember]

I assume perlin noise has a random element

and that element is sometimes 0

but the first result is more correct

the issue you have is that your values are getting duplicated

so probably your loop setup isn't correct

[winged thicket]

but doesnt it just give me a value between -1 and 1

[odd ember]

0 is between -1 and 1

[winged thicket]

i mean the duplicate part

[odd ember]

no

your array should give you values of x and y

[odd ember]

so for each x value you go through the entire row of y values

yeah so you dont have a nested for loop

it seems

[winged thicket]

i do

[odd ember]

where?

[winged thicket]

isnt this a nested loop? a loop inside a loop

[odd ember]

the for should be next to each other

[winged thicket]

whats the diff?

[odd ember]

setting values inbetween may result in errors

[winged thicket]

so do i move Y in the end of the nested loop

[odd ember]

basically the only thing you should have between them is for x (set x to a variable) then for y (set y to a variable)

then do your logic

otherwise the logic that you execute in the first loop only happens once per row

[winged thicket]

thats the point, once per row

every new row

[odd ember]

ok, rubber duck it

what are you doing every new row

[winged thicket]

Y

settings Y and moving it

and when i move it from there it still do the same thing

[odd ember]

why are you moving Y?

[winged thicket]

hmm? cuz its 2d?

ok here

moved them

but it still do the same thing

here is all the code

[odd ember]

I don't know what the perlin noise node is doing

but I tried and got this

[winged thicket]

maybe we're just moving so fast so it looks random?

[winged thicket]

nope

[odd ember]

just copy the code I gave you

[winged thicket]

which one

[odd ember]

did you not see the screenshot?

[winged thicket]

this?

[odd ember]

yes

[winged thicket]

this is not perlin, or noise

[odd ember]

that's noise

[winged thicket]

where is the 1d perlin node

[odd ember]

you dont need one

in this case just multiply it by a random value

that's still noise

I don't know what it does tbh, or why it needs an input

[winged thicket]

but not smooth one

its just like random vector in range

[odd ember]

well then

perlin'd

[winged thicket]

you took a random float in range and perlin'd it

[odd ember]

correct

[winged thicket]

@odd ember do you know what perlin noise is?

[odd ember]

it's just a smoothstep on a value

[winged thicket]

you just took a random value and made it random it

[odd ember]

so what I gave you should give you perlin noise as you'd want it

[winged thicket]

https://youtu.be/ikwNrFvnL3g

watch this video

[odd ember]

tbh fair, it should be between 0 and 1, not -1 and 1

[winged thicket]

..

[icy dragon]

Wrong.

[winged thicket]

just took a random value and did some math and at the end its still random

[icy dragon]

That's RNG, not Perlin Noise.

Did web coders misinform you that much?

[winged thicket]

ya thats what he did

wdym, i was commenting in his code

[odd ember]

looks pretty perlinesque to me

[winged thicket]

he did: random float in range - 1d perlin noise

so its just a random value that is perlin'd

[odd ember]

noise is just random values

you do understand this right

afaik perline just smoothes the transitions of noise, much like in the screenshot above

[winged thicket]

ya, but when you just put a random value in it, it does nothing

[icy dragon]

For all I care, there's also "1D Voronoi"

[odd ember]

that's not true

[icy dragon]

Or should I say, "voronoise"

[winged thicket]

it is true

[odd ember]

there's also

[winged thicket]

watch any video talking about it

[odd ember]

you have to start with a value, dig?

[icy dragon]

Seems like there's some web coder misunderstanding going on here.

I know web coders are guilty of mixing up terms.

[odd ember]

this is literally the formula for perlin noise

literally the dude in the video uses random

[winged thicket]

https://youtu.be/8ZEMLCnn8v0

[odd ember]

basically he says it's value that goes between 0 and 1

ok good, that's exactly what you're looking for

[winged thicket]

you have to pick random number and make it go up randomly and 1d noise it and its gonna be smooth

[odd ember]

that's exactly what I did

[winged thicket]

IT NEED TO GO SMOOTHLY

[odd ember]

and it is smooth

[winged thicket]

can you make it go higher?

[icy dragon]

Smoothstep algo isn't enough for you?

[odd ember]

I mean the perlin node literally handles the smoothening for you

I don't see the issue

all I did was input a value

[winged thicket]

ok look

i'll do it

[odd ember]

I don't know why you're arguing when you couldn't even figure out what a nested loop was half an hour ago

I mean

[icy dragon]

https://tenor.com/view/do-it-shia-la-beouf-flame-gif-4445204

[odd ember]

here's a pixelated version of the spheres

from above

[dark crow]

Actual clouds

[odd ember]

crazy innit

[winged thicket]

its just random float in range with math, it will still be random

[icy dragon]

Of all the time I worked with web coders, they're often guilty of mixing terms up for the sake of simplification, but something like this happens when they (forced to) branch out

[odd ember]

the values you made are so high that there isn't enough space to smoothen them out lol

what do you expect

0 on one node 10k on the next

I mean

try lowering the values a bit to see if you can get consistent results

[dark crow]

We finally unlocked the secret of modelling brushes and fur in engine

[odd ember]

lmao

[icy dragon]

[odd ember]

groom TDs rejoicing everywhere

[icy dragon]

Noise is also random, and in many cases of 3D object spawning, it doesn't matter which noise algo it used.

Now, there are fringe cases like when you want to make sure the actors spawned isn't too close to each other, but that's a different story.

[winged thicket]

here

look

it looks smooth but its random and cuz a mesh is printing it looks smooth

[odd ember]

try upping the grid size

you can also lower the values

to just be 0 to 0.5

[winged thicket]

my pc cant do better than this, and its so big

and is random

and in the video he didnt do random

[odd ember]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Utilities/Time/GetTimeSeconds/ try with this node

[winged thicket]

he made a var called T that he change it every tick

he did random to show us whats the diff between random and noise

[winged thicket]

(seconds) it does everything in half a sec

@odd ember @icy dragon

so..?

do i win?

[restive token]

I dont even know how to google this but

how would I make it on a widget so that you can't navigate with keyboard on certain buttons

basically i have an inventory menu, i want the keyboard or gamepad to skip the items that have zero items

and only navigate the ones that have >0 amount

or how do i even google this lol

[icy dragon]

Safe to say we agreed to disagree on you.

[winged thicket]

just disagree or do you have anything to proof it?

[icy dragon]

Agree to disagree, because you responded corrections with slight hostility, it's just not worth correcting you further.

[woven wing]

Wherever your navigation logic is, just check which widget you'd be selecting and, if it's invalid (because it has no items) test the next one. Keep doing that until you get a valid item or you've looped around to your current item.

[winged thicket]

you both were rude the whole thing

[winged thicket]

^

and btw, i just didnt know the name

[sand solar]

I keep getting this error after I moved my FL to another folder. Its just a Bind on event function so that I can accept or cancel a menu action:

[odd ember]

use frac on it

and we're trying to help you and you were being rude about it

so I don't know what you want

[woven wing]

Did you move the files outside of unreal?

Because that looks like a broken reference.

[sand solar]

I moved it from the root content folder to my custom plugin content folder.

[woven wing]

OK, but did you do that in your windows File Explorer or in UE's content browser?

[sand solar]

Content browser and then fixed up redirectors and saved all

[woven wing]

OK, then I'm not sure what has gone wrong.

But I expect you'll have to rebuild that binding.

[harsh zephyr]

Hi everyone, i need some help, i was making a fire system from a tutorial and its have a animation. I did everything and call fire event in my shoot system but animation is not coming just my character is swinging
https://cdn.discordapp.com/attachments/225448446956404738/893266346203312148/2021-10-01_01-40-02.mp4

[sand solar]

It was fine for the first two editor opens, but then it just broke on the third. I tried getting rid of the two functions, but the delegates are now ghost and are haunting my scripting lol.

[restive token]

oooh thank you - im just using the default navigation, so I'll implement a custom one

[winged thicket]

ok im sorry about that, you were calling me stupid from the start, and at the end you just told me to use a random float in range, and when i said you didnt even use perlin noise you just perlin'd a random float, the red line is random float - 1d perlin noise and the blue line is normal perlin noise

thats the diff

[woven wing]

I don't know what 'Default navigation' could refer to when you're talking about selecting widgets in a grid or something - but good luck!

[winged thicket]

you just take a random float every tick, so its just random but remaped

[restive token]

It means it works out of the box. You just set the widget to have focus and then gamepad/keyboard works automatically.

You can navigate and press enter / A to click

[harsh zephyr]

Can somebody help me pls ? 🙂

[winged thicket]

with?

[harsh zephyr]

Hi everyone, i need some help, i was making a fire system from a tutorial and its have a animation. I did everything and call fire event in my shoot system but animation is not coming just my character is swinging
https://cdn.discordapp.com/attachments/225448446956404738/893266346203312148/2021-10-01_01-40-02.mp4

That is my problem

If you dont understand my problem i will send another video 🙂

[winged thicket]

whats wrong? everything is working

[harsh zephyr]

No

Wait for one minute

This is the problem

[woven wing]

Ah, OK. Sorry, I've never used the widget focus system. My bad.

[harsh zephyr]

My animation is that

But animation is not working

Its have to work

But probably its a blueprint problem

[woven wing]

Ooooh

OK, so it's not playing the 'shoot' animation when the character shoots.

[harsh zephyr]

Its playing

But not true

[woven wing]

"not true"?

[harsh zephyr]

Watch that

[icy dragon]

This seems to be more of an ALS issue 🤔

[woven wing]

I just see someone crouching.

Not shooting.

[icy dragon]

I need to whip out my project that used my own animations on top of ALS, and see how I used them, but that'll took too long for me atm.

[harsh zephyr]

I watched a tutorial

[icy dragon]

Though IIRC, what I did is basically change the upper body overlay with the shooting anim montage.

[harsh zephyr]

Im making this system from tutorial

I did everything true

But not working :/

[icy dragon]

Which tutorial you're following now?

[harsh zephyr]

https://www.youtube.com/watch?v=P-y9cGKJn2k&t=257s

[faint pasture]

Go step by step through the code from when you press the fire button to where the animation is played, and make sure you've got things right.

[harsh zephyr]

I will watch it again 🙂

[covert arrow]

hey guys for throwing objects or adding impulse how can I do a stronger impulse based on how long an input has been hold for example the left mouse button was held for like 2 seconds it will be a weak impulse or throw but if we hold longer we throw stronger?

[faint pasture]

And make sure that you understand what you're doing, not just copying what someone in the tutorial does. You are probably a bit over your head right now.

[harsh zephyr]

Yes

[icy dragon]

Sure, just increase a multiplier value when you hold down the button, and bring the value to multiply the impulse when you release it.

[harsh zephyr]

Thanks for information

I will try that now

[faint pasture]

Get time on button pressed. On release, get time again, check the time difference between them, use that to scale your throw

Or you can use a timeline, it'll effectively do the same thing

[covert arrow]

this is my code currently basically its a function with adding the impulse to the object based on the pawns camera forward vector but how can I manipulate the throw distance variable I have based on how long it has been held

[covert arrow]

oh ok

[faint pasture]

The simplest way would be a timeline with a float track outputting the throw distance

[icy dragon]

This is an okay approach, but might get exploited when there's a slow motion/bullet time mechanics.

[faint pasture]

You can get the time with time dilation

Or without, however you want. Or you can just use a timeline, there's a million ways to do it

[icy dragon]

I think adding with world delta seconds is more fool proof than simply using system time (which can fail in more ways)

[woven wing]

Yeah, that's how I'd do it.

[onyx token]

why is this happening?
https://cdn.discordapp.com/attachments/847253861403197471/893276767647838228/tz3nsBBLxF.mp4

[faint pasture]

It is a very bad idea to make something like this dependent on tick

[harsh zephyr]

Hey im back

[onyx token]

like it doesn't let me rotate, but it always goes back to where it was

[harsh zephyr]

I did everything true again and something changed

[faint pasture]

Are you talking about summing world Delta seconds until the key is released? Bringing tick into this? That sounds pretty janky

[icy dragon]

But then released button event only executed in next frame, so...

Due to how Unreal waits for a game thread to finish before moving on to the next frame.

[woven wing]

Yeah, it would work fine.

[covert arrow]

thank you this worked.

[icy dragon]

It's unclear what you want to achieve here.

[onyx token]

nvm, i'm dumb.

this fixed it

it just reset every frame of course

because i didn't add it to anything

[woven wing]

That's not the case really?

And remember, Timelines tick.

[faint pasture]

I know they do but why the hell would you be summing delta t instead of just using a timeline? That seems so ass backwards

[icy dragon]

World Delta Seconds put Global Time Dilation into consideration

[woven wing]

Timelines do that too.

[faint pasture]

And so can a timeline. So does get game time.

[icy dragon]

Also, correct me if I'm wrong, but in the event of one translating the code into C++, timelines might not exist and has to come up with curve like setup.

Oh yeah, curves.

[faint pasture]

I mean all a timeline is is a little object with curves in it that can tick and go forward and backward and reset.

[icy dragon]

I think curve assets is another option, though it might not be as elegant.

[wary widget]

my goal is to rotate an object by any arbitrary pivot without using the transform gizmos. in this case, the camera is a child of the cube. how can i replicate this behavior with blueprints?

[woven wing]

Is there any compelling reason you can't use the hierarchy?

Like... just make your cube the child of whatever.

[faint pasture]

Compose transform

You can make a transform that has your offset and rotation in it, and apply that to the cube. You have to think really carefully about how you do stuff though.

You can also do it element-wise like this
https://answers.unrealengine.com/questions/42605/how-to-rotate-around-an-arbitrary-point.html

[wary widget]

yes i have my reasons for doing this

[wary widget]

i see..

[wary widget]

the top level answer won't apply any rotation though, right? like, it'll change the location as if the object rotated, but the actual rotation of the object would remain correct?

[onyx token]

umm so i made a blank ue4 scene, and added a spring arm component & a camera into my pawn - and now i wanna use the scroll wheel to change the Target Arm Length on runtime...

So i can zoom in and out using my scrollwheel

but whatever i do, it won't budge.... If i change the target arm length on runtime, nothing changes 😦

even this doesn't do anything

not even for 1 frame or something

[lofty quartz]

What kind of variable is CameraRotate?

[onyx token]

it's a spring arm component

[lofty quartz]

And you are printing to make sure that it gets to there and it casts to the camera class right?

[onyx token]

yeah

https://cdn.discordapp.com/attachments/847253861403197471/893290049121185812/sDOMMH9Dv9.mp4

this is my code

[lofty quartz]

Maybe print the camera component's location during that stage as well.

Just to make sure it's actually changing something.

[onyx token]

i mean- i guess i can switch out the spring arm component with an empty static mesh or a cube or something - and then just manipulate the local X axis of my camera....

But idk

[harsh zephyr]

Hi

[icy dragon]

I think you skipped one step, but I'm not sure which...

[lofty quartz]

If the camera location moves right, I'd check to make sure that your character actually has it's view target through it.

[harsh zephyr]

Im making a bullet hole system with line trace i couldnt find where do i need to spawn it

Can i get some help 🙂

[icy dragon]

The spring arm length should work regardless of it taking inputs or not...

[onyx token]

hm.... this works...

welp whatever, i probably didn't set some option that enables the spring arm component in my pawn...
Since i'm not using an ue4 premade thing, but i made everything from a blank scene

[harsh zephyr]

Can somebody help me pls ? 🙂

[icy dragon]

See #rules no. 2

[harsh zephyr]

I though nobody see my message

[harsh zephyr]

I writed it because of that

[onyx token]

well or nobody knows how to help you / you didn't adequately describe your problem

uh.... this makes sense right?

because nothing is happening.... but this should work?

this is the timeline btw

lol??

event tick doesn't work???

huh. it seems to be an unreal engine bug that appears with newly created character blueprints... wtf...

i guess i'll just launch a third person character template, copy the character pawn blueprint over, and delete all the objects & nodes to make it work
nvm, turns out i gotta recreate my project

[faint pasture]

Rotation isn't affected by the offset.

[odd ember]

@winged thicket

this is just one level, but you could layer it with multiple levels based on size, for more variety

[winged thicket]

finally it worked, ty

my problem was here, i was perlining them after * and +

[winged thicket]

there is somethings you forgot to add to your code: a var that is changed every row that X get reseted to
so its not the same row but with Y changed

Y/X need to be randomized at the start
otherwise you'll get the same shape no matter

[odd ember]

... that's what I said about adding random noise. in reality you need a seeded approach

but that's outside of the scope of BP

the perlin node itself should handle seeding

[odd ember]

well, you could take a random value at start and set that as a seed value to use, then multiply it ontop of the perlin values

[lapis atlas]

Anyone have any good resources or videos for learning blueprints in UE5? My brain is fried from trying to understand enemy movement/detecting player stuff from a video I just watched and would like an explanation for dummies video lol

[woven wing]

Problem 1 : You can fix this by setting the collision parameters on the sword to ignore Pawns.

Problem 2: Why not set the transform directly? If you remove the velocity on the object it should stay in the right position.

Problem 3: It seems likely that the object's 'Hit' event isn't being triggered by the collision with the ground. It's possible that static collision has it's Query off.

[woven wing]

Hmm... I haven't seen any good UE complete beginner tutorials.

We don't have a Brackeys for UE.

[lapis atlas]

Ah that sucks. Guess I’ll just figure it out as I go then. I’ll try again tomorrow

[light token]

Any tips on how to make an UMG Widget which displays multiple quest details in a list? Should I use a wrapbox? How do I start off? I'm very new to UMG.

[woven wing]

You'll probably have better luck over in #umg

This channel tends to be for gameplay blueprints.

[light token]

Oh Sorry, I didn't knew that existed! Thanks a lot

[woven wing]

No trouble. Good luck!

[proper umbra]

Is it possible to have one actor within another one? I made a button actor and want to use it in a couple of different actors, wanted to know if there was a simpler way to do that.

[woven wing]

You can use a Child Actor Component.

But they tend to be... fussy.

[proper umbra]

yeahh it kinda seems like it. Is there a way to override a function in the child actor?

[woven wing]

You can respond to an event from a child actor I think.

But I don't know if you can get automatic hooks the way you do with regular components.

[proper umbra]

Ohh okay I see. Is there a node for that? Or is it something more complicated.

[gentle urchin]

You can override aswell

[woven wing]

Well, like any other event, with a handle on the actor, you can access the event.

[woven wing]

I don't think you can, not without subclassing.

[gentle urchin]

Are we talking about another child actor than from sub classing?

[woven wing]

I believe we're talking about having, say, five instances of the Button actor - and wanting to do different things when the buttons are clicked.

[gentle urchin]

Thats possible aswell

Requires some extra magic tho

And its not overrides really

You could extend the buttons with a secondary claas tho

[woven wing]

Or just... subscribe to the click event.

[gentle urchin]

Y

[woven wing]

Which is the better option.

[gentle urchin]

Thats what i had in mind when i said extending it

But in this case, why would one not just sub class it ?

[woven wing]

Because that would mean making five subclasses?

Seems unnecessary.

When you can just subscribe to the click.

[gentle urchin]

What's gonna subscribe to it ? The same class 5 times? Because rhat takes us back to square one

And if its 5 different classes, unless you for some reason need them to be very different , doesnt make much sense imo

[woven wing]

Nnno... you have five instances.

You subscribe to the click event in each of the five instances.

Now you have five events in the main blueprint that you can do stuff with.

[gentle urchin]

Doesnt sound very reusable at all but maybe im not seeing the big picture here

Dont know to much about the use case either

[proper umbra]

I'll try to show u guys what I'm trying to work on

I have a button Actor that, when pressed, runs an event that so far only plays a sound. I want to import it into another actor that allows a function when said button is pressed

[gentle urchin]

Same instance of the button, or a new one ?

[proper umbra]

I would assume a new instance. I'm likely going to use this button actor multiple times, but it will have a different function on the Pressed Event depending on where I use it

[frigid ether]

I would personally use a interface event. I have one called "World Commands" for this particular issue, since I want actors to behave differently.

I make the "Actors to Trigger" instance editable and then implement the interface into the actors and hook that into whatever function I want them to trigger

[gentle urchin]

Subscription or hardreferencing would probably suffice

[frigid ether]

can also use soft references, this case I'm using hard references since I know both will be loaded

[proper umbra]

ohh okay, I appreciate the example. From what I'm hearing, subscribing to the event seems like it could be a good option, I'm just not too sure how it would work.

[woven wing]

I would do it like this:

The child actors are instantiated before BeginPlay.

[frigid ether]

Subscribing in my opinion is a bit more work that you don't really need. I'm not doing it in my personal case because I'm doing a open world game and for a button, I assume you would then have the other actor subscribe somewhere around Begin Play and if you have several hundreds, it might increase loading times but maybe not

[woven wing]

So you can access their spawned actor, cast to the class, and subscribe to the event.

You would need five such structures for five buttons.

This way your buttons are generic.

And you only need the one button class.

No subclassing required.

[frigid ether]

Subscribing and interface both achieve the same thing honestly, guess it's more just preference

[gentle urchin]

where'd the 5 come from anyway, did i miss a post? 😛

[woven wing]

🙄

[gentle urchin]

different actors, not several buttons tied to the same actor as i read it. Anyways, 2 solutions has been proposed

[proper umbra]

ofc. Thank u three I appreciate the help a lot.

[frigid ether]

Main differences I see is that interfaces need you to do a For Each Loop while with a subscribe you can just call it and all the actors subscribed will trigger without a loop

[gentle urchin]

I find subclassing and subscribing both very helpfull to their own use cases

[frigid ether]

yeah of course, all these ideas have their time and place

[woven wing]

In this case, having a class per button seems excessive.

[gentle urchin]

if the button is only supposed to do one thing, i'd say its better practice to subclass them

tossing 'all' that code into a singular bp can become messy

isolating them makes alot of sense to me

[proper umbra]

Yeah I'll definitely have to google it and research more later on

And does the Bind Event to node work with custom events that I made? It doesn't seem to be appearing in the search

[woven wing]

Yes, it does.

[frigid ether]

Yeah, there's a small red box on the top right of your custom events

Just like this

[proper umbra]

I see. I'm not sure if I am doing this right then.

Or I'm just not understanding

[woven wing]

Ah, you want to create an "Event Dispatcher" in the button Actor BP.

[gentle urchin]

you must make a dispatcher event , or somehow bind to the click itself by getting the reference to what would be clicked(since that would have its own dispathcer)

[woven wing]

And then, in the "Press" event, call that dispatcher.

In my dummy example, I'm just waiting a few seconds before calling the dispatcher:

But the principle is the same.

[frigid ether]

If you don't see it, check if "Show Empty Sections" is visible

[proper umbra]

Ah okay I see it.

Yep this is exactly what I needed it do. Thank you three I appreciate it a lot.

[woven wing]

👍

[light token]

Why is this blueprint giving me this error? I don't get it...
https://blueprintue.com/blueprint/xo4vtfbq/

Blueprint Runtime Error: "Accessed None trying to read property CallFunc_Array_Get_Item". Blueprint:  CoinTreasures Function:  Save Quests Graph:  SaveQuests Node:  Add

Array Length also gives this error.

It even happens when I use the Make Array method and use it. Can't I use arrays in pure functions?

[maiden wadi]

@light token If your Quests array is an array of pointers, make sure to IsValid them in the loop before trying to get their ObjectClass, or Progress variable.

Alternatively, you can also just call Remove on the Quests array with no input, that'll clear out any invalid references.

Before the loop I mean.

[light token]

@maiden wadi The problem is not with the Quest array. It'with the Quest Structures array

When I remove the Clear node

and retrieve it's length and call print. it also gives this error

I should have been more clear on that sorry

[maiden wadi]

That's odd. Is that a function local variable?

[light token]

Yes

[timber knoll]

It would be more easy with actual context as in a screenshot 😛

[light token]

I'll do that right away

But yes it's a local variable. Should I make it a blueprint wide one?

[maiden wadi]

Should not need to.

[light token]

hmm it could be the problem

[timber knoll]

Yeah it looks fine

Have you stepped through the function using breakpoints?

[light token]

since it trows the local variable away but savegame still needs it/

[timber knoll]

Thats not true

Savegame will only throw it away once its complete

[light token]

ah

sorry i'm still a bp noob xd

[trim matrix]

is the savegame object you inputed valid?

[light token]

yes

[trim matrix]

wierd

well have you tryed to simply the problem to debug it

like taking away all extra code

[maiden wadi]

I think your Unreal is drunk and doesn't understand what it's trying to error on. Nothing in that function is wrong with the use of your arrays beyond missing validity checks on pointers.

[trim matrix]

just leaving add to quest structre, get quest structure

[timber knoll]

Well I would for sure start using breakpoints

[light token]

yes I did a length print on the quest structure array and it immidiatly gives that error

i removed the clear node

and put it there

[maiden wadi]

Even if you disconnect the Loop?

[light token]

i'll dive in using breakpoints, never used it before

yes even if i disconnect the loop

I also restarted UE

[maiden wadi]

Are these blueprint or C++ structs?

[light token]

Blueprint

[trim matrix]

aside the point but if this is quest structres array is a local variable why do you need to clear it?