blueprint

[paper galleon]

World or local?

[faint pasture]

Probably world unless they share the same local parent.

[covert lake]

does anyone know how to solve my question?

[paper galleon]

Thank you. I'm currently using find look at rotation seems to work but it's not very smooth when moving

It's much better @faint pasture , thanks.

[shut fiber]

Hey I'm having trouble using wildcards in macros, can anyone see what I've done wrong?

[proud hull]

Does your reload have an animation you are tying it to? If so, use an anim notify to play the sound only once, but if the animation loops, it will play for each loop. Then when animation is done, sounds stop too.

[void cobalt]

no animation yet

[proud hull]

But an animation synced to the sound is desired?

At some point, I mean.

[void cobalt]

yeah probably

animations arent rly necessary in testing phases right?

[proud hull]

Not really, and should be easy to setup an anim notify later too.

I guess it depends on what you are testing though, hehe

[void cobalt]

well i found a node called "stop delayed"

that might work

[proud hull]

Ah, so the engine has exactly what you need it seems, nice find.

[void cobalt]

except

idk how to plug in the target

[proud hull]

Add an audio component to whatever is playing the sound. Then I guess you would play the sound through that component to use the stop delayed node.

Never used that component before, so not sure.

[void cobalt]

hm

not sure if it works

[proud hull]

Can you show inside those macros?

[void cobalt]

oh well ill work on it later

thanks for the help tho

[shut fiber]

the screenshot I attached is the macro

[proud hull]

What is local array of wildcards? Sorry I do notice it is a macro now, was assuming those were too, haha.

[shut fiber]

I mean that's just how you set up "local variables" inside macros, you can see that the string works fine. I have no idea why both wildcard variables don't work. The error says I need to assign them a variable, which I have...

[proud hull]

Can't the local array not be wildcards, since you have a specific array type as an input, shouldn't it just match that object type?

[shut fiber]

that's not how macros work unfortunately

[proud hull]

Sorry I'm of no use here. I barely use macros, haha. From what I saw, it looks like it should work.

[dapper cradle]

Anyone know how I could lock a characters rotation ?

I plan on doing it with a button press, so that the character will be forced to look in that direction and will run backwards if pulled back on the controllers joystick.

[eager peak]

hey guys I have a custom made character. how do I make it so the get player character and get player controller work off this custom character?

[faint pasture]

Get player character and get player controller both get whatever the current character and controller are. What exactly are you asking?

[eager peak]

weird

[faint pasture]

It depends on how you are driving the rotation. The typical default setup is to have the capsule driven by control rotation, and that case, just set control rotation

[eager peak]

I'm doing a cinematic that triggers on collision, and disabling input of the character. I wasnt sure if the player controller / character controller had to be assigned

[faint pasture]

If you're wondering how to get at your custom stuff in the character, you need to cast the reference from get player character to your custom class. It's just like if you had a function called get pet, and you wanted to call bark on it, you needed to cast the pet to dog so you can do dog things.

[deft nimbus]

I don't want to interrupt, I hope this is a short one: this BP is a child of another BP calling the same event, but I can't add the parent function - does anyone know why?

[narrow bear]

I don't think you can do that for that specific event, I had the same issue

[deft nimbus]

oh wow I am doomed if that's true XD

[narrow bear]

What you can do, is just separate all the logic in your parent into a separate event, and call that instead

Nah

Just separate it

[deft nimbus]

ahhhh

oh that's pretty smart

[faint pasture]

That is a delegate. If you want to have polymorphism, you'll have to have that delegate fire a custom event, which you can then override

[narrow bear]

All the logic that you have in your parent for the OnComponentBeginOverlap, just put that into a separate event, and call it from the OnComponentBeginOverlap.

[deft nimbus]

I'll go with this one thank you!

Works like a charm!

[blissful lake]

Hello, i have a question:

Is there a way to blend pose by int but with a Boolean condition, for example aiming?

[dapper cradle]

Thank you for the advice @faint pasture But how might that look in BP form ?
would I somehow get the world rotation I was hitting with the line trace and setworld rotation of the capsule using that, All while the button is being pressed ?

If I guessed correctly... i would have to figure out how I get that information out of the trace

[brazen prism]

Does anyone know how i can access the data from "custom data channels"? just an array GET outputs "tx"

I can access it in the Material node system:

[gilded pond]

guys, how to remove a comma from numbers greater than 999?

[dark crow]

Uncheck Use Grouping in ToText node

[runic parrot]

Hi guys! can anyone guide me on where to look at for this? i'm trying to setup my targets when the touch with my crosshair (i'm using a line trace for this, already working ok)
but i also want to a circular area around that crosshair, so that if i'm not directly aiming to that target, if it's withing the area, i can still get it as a target.
any idea?

[dark crow]

Sounds more of a SphereTrace thing

[runic parrot]

let me check

[dark crow]

Same as LineTrace but it's in a Circular area instead of a Line

[faint pasture]

@dapper cradle it all depends on how your capsules being rotated. You can check the checkbox that tells it to use the control rotation, in that case, you would just set control rotation manually. The capsule might also not be rotating at all, or might be orienting itself to movement based on the setting in the character movement component. I'm guessing that you just have the capsule driven by the control rotation. In that case, just set control rotation manually each frame.

And you would use fine look at rotation to determine your target rotation

@runic parrot there are a bunch of caveats and edge cases regarding what you're trying to do. For example, what should an email if you have two targets that are both close to the crosshair? Which one does it aim at?

[runic parrot]

pretty much trying to emulate the system on bdo

if there's more than one on the sphere trace path, just need to pick the one closest to the crosshair positio

[faint pasture]

Is your impression that the area is a constant distance or constant angle?

[runic parrot]

constant distance

it looks like a circle around the croshair with radius X, anything withing that circle can be use as a target

[faint pasture]

That would be constant angle. The circle represents a greater distance the further away things are, correct?

[runic parrot]

i think i need to setup a sphere trace with center point on the camera forward vector and then look around for multiple colisions

[faint pasture]

At 10 m distance, you can lock on to something 1 m from crosshair. 100 m, do you lock onto something 1 m from crosshair or 10 m?

[runic parrot]

oh didn't tought about that one

let me check

[faint pasture]

I'm guessing it's constant angle. Depending on the complexity of your setup and a number of targets and targeting distance etc, there are a number of ways to do it. Here's how I would do it.

Whatever you're targeting range is, figure out what size of sphere you want to represent the targeting distance at that range. Multisphere Trace from start point to end point.

Then, get all the outputs from that trace, and calculate the direction vector from character to Target.

Then, perform a DOT product between those direction vectors and aim vector. the target with the highest dot product is the one closest to your crosshair.you would want to exclude anything with the dot product below some value to exclude very close targets that are at a high angle from the crosshair.

You could also do it just with a overlap sphere attached to the character, and an array that holds all of the overlapping actors of interest. To select a target, you just select whichever actor of interest has the highest dot product between its direction vector and the aim direction vector

[trim matrix]

how do i add a third party plugin to my game?

[runic parrot]

it's kind of weird, when you get closer to the target, it seems that you get a greater angle to check for targets, so if you are just around it, you don't need to exactly aim at it

i'm gonna try implementing your suggestion

[faint pasture]

That sounds like a constant radius. In which case just choose a sphere radius that works (I'm guessing 1-2m)

Does it update every frame or only if you are pushing a button like lock Target or something?

[runic parrot]

every frame

my worry is that it's going to be really expensive to make a trace of that size every frame

[faint pasture]

I run 1200 line traces per frame every frame, you're fine.

Although it would maybe be a bit more performant if you had a sphere collider on the character of radius Max targeting radius, and just selected your Target by the dot product method

Have the sphere collider only overlap pawns or whatever your targets are going to be.

[ruby surge]

Can someone point me in the right direction as why my rotation is not replicated, but the forward and backward movement is?

the character is replicated

[astral estuary]

movement input is replicated via the character movement component.
Rotating an object in the world doesn't go through that component

Movement input by itself doesn't do anything but trigger an event. charactermovement picks up that event and actually moves you

you should find something similar for rotation input...

@ruby surge

[ruby surge]

Ok thanks, will give that a go

[cosmic basin]

how i make this thing work without event tick?

cause this event happen only once

its on event beginplay ofc

[astral estuary]

uhm... I don't see tick

where?

[cosmic basin]

behind get actor of class, if i put event tick, it's finding actor every frame and this event works

like it should, i mean if event from this bp is done, then timeline

[astral estuary]

ohhh, you want to "emit" an event from the other thingy and catch it 🤔
I think that you want something something delegate

let me see...

[cosmic basin]

yea

[faint pasture]

@cosmic basin what are you trying to do there?

[faint pasture]

You should definitely not be starting a timeline from The tick event execution chain

[cosmic basin]

i dont want this .

[faint pasture]

Whoa what the f*** yeah don't do that

[cosmic basin]

i know

[astral estuary]

https://docs.unrealengine.com/en-US/ProgrammingAndScripting/Blueprints/UserGuide/EventDispatcher/CreatingEvents/index.html

[faint pasture]

So when do you want the timeline to play? He doesn't necessarily need a dispatcher right now

[astral estuary]

your lever will have an event

[runic parrot]

right, what are you trying to acomplish?

[astral estuary]

and your... whatever this is will register a delegate to that event

and that delegate starts the timeline

or something like that 😅

[cosmic basin]

if event is done from other bp, then this happen once

[faint pasture]

@cosmic basin I take it that timeline is for moving the lever? then you should make an event called interact or whatever which is what will kick off the whole thing

[cosmic basin]

ye[

[runic parrot]

how do you define wich others bp? the ones overlaping? near? variable set?

[faint pasture]

You'll actually probably want an interface with an interact event so other things can interact beyond just levers, but to start with, just make a custom event called interact and feed that into that logic chain

[cosmic basin]

timeline is for animation,

[faint pasture]

Yes I understand that. You need to make a custom event that begins all of that business, and then figure out how you want to call it.

[cosmic basin]

and this is from bp_lever

[faint pasture]

Wait a second, why do you have two different timelines. Isn't this BP lever you're working on?

[astral estuary]

instead of setting that boolean, call another event

[runic parrot]

yeah, wrap all that on a interact event and check how do you want to trigger it. from what i see a sphere with colission on the lever and a function on your character for "interact" would be enough.
when you use "interact" on the character, you check all the objects within that sphere and try to interact with them, you can setup filters later

[faint pasture]

Or is this for the door that the lever controls?

[cosmic basin]

last screen is from first lever

[faint pasture]

@cosmic basin just describe what you want to have happen when you trigger the first lever.

[cosmic basin]

1st lever triggered> start trigger second one

[faint pasture]

I'm assuming the interaction stuff works right now? The last thing that you sent?

[cosmic basin]

yea

[runic parrot]

a dispatcher may just do the work there

[faint pasture]

Disregarding the programming, why do you have a lever triggering another lever?

[astral estuary]

try this

[runic parrot]

add a event disptacher on the first lever and make the second lever subscribe to that event, when you trigger first lever, call that event dispatcher and do something on the other lever that is listening

[cosmic basin]

i'm testing things

[faint pasture]

If levers are meant to be interchangeable and connected in various complicated ways, you should have an event called update lever or toggle lever.

Interact would call that. Also, other levers can call that through a dispatcher. Either way, you should not be recreating the code that does the lever movement.

So input action interact calls toggle lever. Toggle lever can call the toggle lever dispatcher, which can call toggle lever on other levers if you want.

I would start with a lever and door though, levers calling levers calling levers sounds like a spaghetti c**********

[cosmic basin]

i will try 🙂

[runic parrot]

i think he's trying to do something like: if i trigger this lever to open the door, close this other doors.
you can make an array of levers on each lever and save a reference to some other levers that you want to change when triggering that first one.

[astral estuary]

the BindEvent node you call it in the beginplay of your other thingy so it's bound at the beginning and then when your lever1 calls the event, the bound one reacts

[tranquil dome]

What should i have for the UProperty to have details showing for edit in the details pane ?
Right now i have just this:
UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "Code")
USkeletalMesh* LeftMortarSkeleton;

[faint pasture]

It'd be easy enough to, on trigger, set this lever to true, get all other levers, set to false

[runic parrot]

Try with expose on expawn and instance editable set as true (you can find them on the variable details)

[trail saddle]

Hi, I am making a FPS game and there is bullet spread in it. I also have tracer rounds. When I walk I have my bullet spread high right? However the tracers still go straight and I was wondering on how to make the projectiles follow the line traces, thanks for the help! :D Please ping me

[runic parrot]

offset the trace by the same amount of spread you are using for the bullets maybe?

[trail saddle]

The tracer round is a projectile, I want the projectile to follow the Line Trace not the Line Trace to follow the projectile.

[runic parrot]

Maybe try:

1. make a "find look at rotation" from the end of the weapon (where the bullet projectile probably is being spawned) to the end of the tracer.
   than adjust the rotation of your bullet with that new vector

[trail saddle]

Oh, okay thanks I will try that!

[cosmic basin]

yea, got it

it works ^.^ thanks you guys

[runic parrot]

niceee

[unique fox]

Hello, So I am trying to read a color from the Render texture.
But it seems not to read properly, I am always getting a default value of 1 in the R, 0 in G and 0 in B.
Despite there being any color in the Render texture.

[spark steppe]

are you sure that theres no color? i had several cases where the alpha was just 0

[unique fox]

There is color and the render target shows properly in the editor, but in the value that comes out of the read render is incorrect

[pure beacon]

Okay, this is going to sound really dumb, but I swear I have looked everywhere and cannot find an answer. How do I make it so I am moving a pawn? I have made a gamemode where the pawn I want to move is the default pawn. I have tried force possessing the pawn. I am possessing the pawn, I can tell because my camera is snapped to it, but I cannot move it, and none of the 'blueprint code' I have drawn out does anything. Anyone know how to help me out, or is this not enough information? I have no idea what else to say. I am brand new, clearly.

[runic parrot]

did you change anything on the template that you are using? they come working right off the bag

[pure beacon]

@runic parrot I just used a blank project. I found this video of movement I liked, so I just copied what they did in the video, cuz it also seems very easy to customize myself afterwards. My initial thought is that it isn't working because I used a pawn instead of a character, but they were using a pawn, and also, pawn possession is a thing. I don't like the default movement in the templates, which is why I just found a tutorial of implementing movement from scratch

[calm cobalt]

I have a widget component on my harvestable tree for debug right now but to show resource amounts in game later. I like screen space because its always on top towards camera but its huge lol. It doesnt scale with distance. Is there a function or parameter im missing to do that?

[split cliff]

is it possible to detach the blueprint editor from the main editor window so it doesn't minimize when the editor does?

[sand shore]

You would have to locally rotate all worldspace widgets towards the camera, automatically adjust the widgets scale from the widget itself, or define a new type of widget space to do the scaling for any given widget.

basically, workaround or make it yourself

[calm cobalt]

@sand shore I noticed it draws forever too so im just gonna put a overlap on it and only make it visible when you are in the overlap

[astral estuary]

@sand shore you can't just say that two data wires into the same node is legal and peace out

I need answers

[sand shore]

@astral estuary

K2Node_CallFunction for your ... amusement?

basically the function can't do anything with an array, can't have any returns, ... and some other stuff

And then actual arrays or multiple pins can connect to the same input

I think it has to be the target pin?

[astral estuary]

does it excecute something on those pins?

[sand shore]

becomes an implicit for each

[astral estuary]

say, what I saw was two character references for the same add movement input

both would get the input?

[sand shore]

any pure node connected to the input is evaluated for every object the function will be called on

[sand shore]

yes

If that function allows this

anyway, as soon as an array is involved, it won't work (IIRC) - I'll let you discover why, if you like

[raven pilot]

hi guys

i was wondering if anyone had advice for like a human catapult

i have tried a couple of things but didnt work

[astral estuary]

turn on the simulated flag on the skeletal mesh?

[static charm]

did you put explosives underneath?

[astral estuary]

oh, and yeet it with launch character or something with launch in the name

[sand shore]

what have you tried? otherwise you might get it suggested again here

[raven pilot]

is the node called simulated flag?

[astral estuary]

simulate physics set to true

cant remember if its a boolean

[static charm]

i think there's atleast one catapult tutorial on youtube

[astral estuary]

or a "turn on simulated physics" node 🤔

[raven pilot]

well am not sure how to put it into words, but i basically followed this video and tried to make it work for my method https://www.youtube.com/watch?v=KhaebDKapCs&t=239s

[astral estuary]

simulate physics on a skeletal mesh turns on the "ragdoll mode"

kinda

[raven pilot]

okay, i do have that set in

[sand shore]

well it's better than nothing at all! it's what you've tried

[raven pilot]

indeed

[astral estuary]

your character should be falling limp, right? 🤔

[raven pilot]

yea there is, but not a human catapult tho, like launching yourself, so far from my 45 minutes of search

[raven pilot]

well after the ascend yes, once it starts descending

[sand shore]

What aspect isn't working? Or are you maybe asking for advice to make it feel better?

[raven pilot]

i will take a quick vid

[raven pilot]

am basically supposed to be launched in the air

[astral estuary]

ohhhhhhhhhh

[raven pilot]

i also get this error which i dont understand because i have ragdoll on

[astral estuary]

yeh, no, you don't want ragdoll

[raven pilot]

oh

[astral estuary]

you shouldn't be flying like a ragdoll but actually superjumping kinda stuff

[raven pilot]

yea true

[astral estuary]

cheap way out: Launch yourself! 👀

[raven pilot]

lol

whattt

[astral estuary]

override your Z speed and weeeeeehhhhh

[raven pilot]

lol if this works

[sand shore]

lmao youtube tutorials

what even are they

[raven pilot]

its best for free entry level until i start investing in courses 😭

[astral estuary]

the one with the R logo and the WTF is series are somewhat decent 🤷‍♀️

[raven pilot]

ima try that launch character node

@astral estuary lol it looks like it worked, thanks men

good progress so far, i will just edit the delay and add an anim

[astral estuary]

just for reference, the one with the R logo is "Ryan Laley" and the other is "Mathew Wadstein" (not related to them, just sharing what worked for me)

[astral estuary]

go toph!

[raven pilot]

😳

[sand shore]

Can I just recommend never watching "tutorials" from that channel again?

I don't know what they are trying to do with their casting and GetPlayerCharacter(0), but surely you can find someone who understands UE4 and BP to teach you for free on youtube without multiple long ads for a 2 minute video.

that seems like a failure to understand OOP

[raven pilot]

haha the problem is that, am new so i cant tell who knows what they are doing and who doesn't, I just kinda have to hope for the best for the mean time 😅

i will probable have to unlearn some bad habits later on

[astral estuary]

I found this guy has nice "courses" https://www.youtube.com/channel/UCsS5i15vvUbwfr_1JdRKCAA
and when panik and a wild node appears, wtf is unreal engine: https://www.youtube.com/channel/UCOVfF7PfLbRdVEm0hONTrNQ

(again, not sponsored)

[sand shore]

Yeah. There'll come a point when something doesn't make sense but works anyway. Pay attention when that happens.

Also can recommend wtf is

[raven pilot]

@sand shore I have actually seen those guys

its just that usually i need a specific solution

so am more of a hobbist, so am not really trying to spend months studying game dev and programming, am just trying to do stuff that looks cool, which comes with a lot of pains 😫

[astral estuary]

Also, might seem counter intuitive, but the part where the network bible explains how and why there are gamemodes, gamestates, playerstates, controllers, and more crazy stuff was reaaaaally helpful for me to sort my classes out:
http://cedric-neukirchen.net/Downloads/Compendium/UE4_Network_Compendium_by_Cedric_eXi_Neukirchen.pdf (only pages 12, 20, 26, 31 and 40. You can read the entire stuff if you want to do networking, but those pages explain what are those magical ue classes)

[sand shore]

the problem isn't you wanting to make the cool thing. the problem is that you'll come in here and you'll have a bug that only sets in after a few months and you don't remember the tutorial.

and if that happens, it's fine, but when you find bad tutorials you should avoid them so you can avoid those moments.

I totally have no real investment in what you watch

[raven pilot]

wow, its like a bible, I will probable bookmark that and study it when i can

[astral estuary]

I don't know if somebody elses calls it a bible, but I chose to do so and trust my lord and savior eXi

[sand shore]

yeah that could be called a bible in the gamedev context

like super handy resource bundle

[raven pilot]

oh yea i see, that would be problematic, so far i have one to look out for

[raven pilot]

lol, yea, i called it a bible as a simile

[sand shore]

I can't tell you the amount of hours I've spent debugging something, and was just missing a tiny little connection between nodes.

That's without a misleading reference

[astral estuary]

• Why my code is not working?!
• Oh, never plugged the exec wire

[sand shore]

I could easily see nobody catching a bad GetPlayerCharacter or a weird cast

[raven pilot]

wow yea, coding alone can get messy so i can understand it can get worse with messy guidance

[sand shore]

Yeah! not trying to be gatekeepy

[static charm]

wtf lambda admitting to mistake

[sand shore]

https://tenor.com/view/futurama-serious-stare-suspicious-gif-5319823

[raven pilot]

lol

[astral estuary]

I am new here, still learning the names 👀

[raven pilot]

oh ur new here?

[weak gulch]

I feel like I'm going crazy here and I'm sure it's the lack of sleep, but I can't figure out some simple math I'm trying to do.
I am starting with 15000 as player "Credits". I want to take a Quarter of that, subtract by 0 (for now, eventually it will be a number), then take the Quarter amount and subtract it by the 15000. I would think it would be 3750. But I end up with -11250 as the result of the initial quarter and -2812 as the total result. .. How?? lol

[raven pilot]

this is too advance for me 😭

[sand shore]

shouldn't that, as described, always be negative?

[unique harness]

if you take .25 of 15000 and subtract 15000, it will be negative

[astral estuary]

Game developer since... 2017? 2016?
unrealing just this year

[unique harness]

.25 would be 3750

[raven pilot]

oh wow, your pretty new

i kinda started in 2017, but i was consistence as you wore lol

[sand shore]

@weak gulch change the order on that subtract node. Also you don't need the temporary

[weak gulch]

oh man.. okay, feeling really stupid here. To get a percentage of something wouldn't I multiply by .25?

[weak gulch]

Subtract before setting amount lost?

[sand shore]

no.

[steep robin]

(3750 - 15000) = -11250
(15000 - 3750) = 11250

[sand shore]

flip the arguments

[unique harness]

"of" is multiply

[sand shore]

right here

just change this around

temp credits on top

[astral estuary]

maybe the custom math node can help here? 🤔

[sand shore]

Credits = TempCredits - Loss;

Credits = Loss - TempCredits ;

[astral estuary]

the loss is reaaaaaally big

[sand shore]

which seems right?

[weak gulch]

Ohhh, okay. Okay, that makes sense. So I'm not in the negative anymore. And then For getting the percentage, am I using the wrong kind of node there?

[astral estuary]

he lost 125% of his credits

[weak gulch]

lol, going super broke because I'm dumb with math.

[astral estuary]

you get 25% of credits and then add to another credits. U sure about this?

[unique harness]

the other i 0 i believe

is 0 i believe

[sand shore]

yeah you lose credits you earned tonight, plus 25 percent

that looks okay

[weak gulch]

The thought process is you'd lose the credits plus anything you made in that other "Credits Made Tonight" node

[astral estuary]

no idea what your game is about, but with that substraction flip things should work 👀

[steep robin]

With sleep deprivation, all things are impossible.

[astral estuary]

It's my job to make games 🤣

[sand shore]

it seems kinda interesting, got a busted mechanic and some sort of day delineated dungeon or level crawl

[steep robin]

Here's an idea: Don't subtract anything. Use only addition, and multiply by (-0.25) instead.

[unique harness]

or don't make it more complicated to the untrained eye

that's also a good choice

[astral estuary]

Spam comment blocks everywhere

[sand shore]

MathExpression time?

[astral estuary]

After finding that Wrap int is busted I made my own with 3 math expressions

some radioactive nodes I tell ya

[weak gulch]

Thank you so much everyone! Sorry I had a smooth brain moment there and couldn't figure out what was wrong.

[sand shore]

Wrap Int?

[astral estuary]

lemme search my rant...

[weak gulch]

Oops, sorry about the accidental reply

[astral estuary]

rant here.

[steep robin]

That is onions.

[sand shore]

Oh that's a good yikes I guess nobody ever subtracts with those

[astral estuary]

🤣

I just needed something to keep my index inside the logical bounds of my array, a simple modulus wouldn't fix negative numbers

so I just crank the number into the positives and then modulus

3 maths expressions

[sand shore]

as is tradition

[astral estuary]

also, does your brain ever get used to the loops including the last index?

[sand shore]

do you just have a pepe set ready to go?

[astral estuary]

[sand shore]

nah, but I haven't used a for loop in BP in ... probably years?

[raven pilot]

lol oh, did u go to school or self taught?

[astral estuary]

self taught to code, tried studying engineering for some years, failed, self taught to make games, landed a job, here I am 👀

[smoky oak]

hi everyone, do you know a good way to tell if an ai characters shot projectile missed "left or right", given projectile location at time, player location, and ai character location?

trying to train artificial intelligent aim using mindmaker and would like to pass it the player dodge pattern

[sand shore]

similar to me, actually

[astral estuary]

go, dropout team!

[faint badge]

Dropouts are where it's at!

Self taught programming from a young age, dropped out, had no idea what I wanted to do, ended up getting a job in a film company. Film company went bankrupt but I'd learned Unreal on the job and got lucky joining Epic right as they started getting into virtual production with the engine

[astral estuary]

Yeeeee... I kinda work for a sliiiiightly smaller team 😅

I work at killabunnies, an argentinian videogames studio

[faint badge]

Boo, the Killabunnies website is down so I can't spy on what you're working on 💔

[astral estuary]

😰 shouldn't be

https://killabunnies.com.ar/

[faint badge]

Hmm, I turned off my work VPN and it started working. Was showing as "connection refused" before

It looks like a cool place! I really enjoy being able to work on lots of different styles of project and from the show real it looks like there's a lot of variety in the games you make

Also I feel bad for offtopic chat in the blueprints channel so I should probably offset it with a blueprint tip.

Erm... Calling delay with a 0 as the time will delay for precisely one frame so you can use it to defer some logic until the next frame no matter what the frame rate is?

[sand shore]

Nice recovery!

[faint badge]

Thanks!

[sand shore]

(so this doesn't stay buried, to offset off topic) also losi, if you see this, I don't know

[astral estuary]

I guess that you can try to measure the angle between the direction from the shooter to bullet vs shooter to target? 🤔

[faint badge]

You can use the cross product and check the sign of the Z component

First form two vectors:

A = Bullet Position - Shooter Position
B = Target Position - Shooter Position

Then do Cross(A, B) which will get you a vector, check if the Z component is greater than 0. If it is then it's to the left of the Target, if it is less then then it's to the right, and if it's 0 then it's in the same direction.

I could also have my left and right mixed up so double check it, but the sign of Z will determine left right

[smoky oak]

I got something figured out, but I cant test it because my behavior tree is going bananas

[trim matrix]

I create this dissolve effect with this tutorial https://www.youtube.com/watch?v=_YTw-pFuWig

But It's not workin when I'm rotating the box😭
please help me out

[unkempt valley]

how would i go about making the character enter first person when entering a building then back to third once he leaves?

doing so with an ALS character

[gentle urchin]

Guess you could either:

• have two cameras and switch between them when you enter the building
• adjust cameralocation to fp. And back again. I think two cams is the easier solution

[trim matrix]

I'm trying, this can anyone help me here?

[atomic salmon]

@unkempt valley you can have two pawns, one first person and one third person and possess the former or the latter depending on what you need. Keeps it clean and you can have completely different code/logic for each one.

[magic summit]

hello has anyone created inertia obeying spring interpolation? basically normal InterpTo node works as object is resisting air, however I would like to have delay when object is accelerating, but once there is steady speed/no acceleration then it would get back into its rest state

[topaz crypt]

Hello there ! Does anyone also have Unreal crashing when plugging in layer instances into layers ? (I'm using the layering system on UE 4.26)
So when I clic this (see image) my Unreal crashes..
I get this message in the Crash Reporter:

Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 674] Array index out of bounds: 0 from an array of size 0

Thanks in advance for your replies !

[atomic salmon]

@magic summit you may want to check Finterp Ease In Out. Seems pretty close to what you need and it is already implemented for you.

@topaz crypt that error is the result of something that went wrong with either the setup or the data. Is there any other pointer before the Assertion failed? Any reference to something else?

[magic summit]

oh I was using vector interp actually, so didnt see it, will try it and let know if it worked

[topaz crypt]

You mean in the crash reporter ? Not that I see.. :/

[magic summit]

@atomic salmon I think that ease in out is completely different, more like LERP with curve exponent

[atomic salmon]

@magic summit it gives that "inertia" feeling though, otherwise you need to code it from scratch or use a timeline

[magic summit]

yeas but you need to input alpha inside, which means it still needs some acceleration value

[atomic salmon]

@topaz crypt yes because that Assertion Failed is very low level and you need to find the root cause to it. Usually the crash log has other indications about what led to it.

@magic summit starting from F = m * a you can calculate a = F/m, where m is the mass of your actor and F the force you are applying to it. One you have a, the linear acceleration, you can integrate it one time to find v as v = v + a * DeltaTime.

When a has reached a threshold you can set yourself, you can simply set it to 0 and the actor will stop accelerating and maintain its speed constant.

This is equivalent to stop applying that force F to it.

[magic summit]

eeh I think when I dont have any mass (transforming ui widget in 3d space) and any force it would be hard to calculate acceleration from that

I have simple set world space based on socket location with not info of previous frame anything

[atomic salmon]

@magic summit it doesn't matter. If you want to get this inertia like effect you can use an arbitrary mass and arbitrary force and tweak them until it looks good.

[magic summit]

but wouldnt I get arbitrary acceleration then?

[atomic salmon]

Correct. Or you can set directly the acceleration and take it from there.

[magic summit]

force would be really specific based on how objects moves

acceleration is changing value

that needs to be calculated from something based on actual movement

[atomic salmon]

Acceleration (linear) is the ratio between a Force applied to an object and its mass.

All that matters in your case is that you want to simulate the movement of something (an UMG component) like it would be a physical object.

[topaz crypt]

I found a way to open the CrashContext.Runtime-xml file where there looks to be more details about why it crashes
(although I can't really link the whole file here because it contains some personal information)
Do you want me to look for something in particular ? I can send some parts of it

[atomic salmon]

@topaz crypt put it on pastebin or something similar and share the link here

@magic summit so you pick an arbitrary acceleration and then, at each Tick, you move your object by a delta position derived from the motion equation.

[magic summit]

ok so lets say I can set arbitrary value for mass as its constant, however for FORCE is simply missing so therefore I ask where do I get force from

it has to be based on object movement

[atomic salmon]

Ok, forget force and mass for a moment.

What you really need is an acceleration value because a = F/m and you need a.

[magic summit]

yeah I have idea how to calculate it kinda

[atomic salmon]

So you pick a value for a, say 10

Now you need to calculate the speed produced by this acceleration at each time step

v = v + a * Delta Time

This is your speed at each time step. It keeps increasing as long as a > 0

Now you have your speed. You need to calculate the new position at each time step

Same drill. p = p + v * Delta Time.

With that you know how to move your object/actor/whatever like it is driven by physics.

[magic summit]

ok all formulas are nice but real problems start at getting those values to plug them, how to get actuall values for each time step

[atomic salmon]

On Tick

Create 3 variables, a, v and p. Give a a value, set v =0 initially and p = the initial position of your object

Then On Tick, you just apply each time the formulas above and update v and p. Finally you set the location of your object to p. Delta Time is directly available from the On Tick event.

Incidentally, if you set a = g gravitational acceleration, you will see your object move like subject to gravity.

What we have done here is to simulate a micro-physics engine.

[magic summit]

so far what I tried is I need to actually save previous frames into variables

[atomic salmon]

v and p are updated at each frame, yes

a is constant until you set it to 0 to stop any further acceleration

you can do it with a Branch On Tick, like if v > v_max then a = 0

this will stop the acceleration as the object reaches v_max. This is somehow simulating air resistance.

[magic summit]

I got somethow that accelareation calculated, but problem is result is really jittery

[atomic salmon]

Show your code

[magic summit]

Im rebuilding and visualizing it

but esentially what I do I save previous position and then calculate motion vector then I compare previous frame motion vector and current frame motion vector and see their difference

difference is basically acceleration but it calculates it soley on two frames which changes/jitters a lot

[atomic salmon]

difference between two velocities is not the acceleration. you need to divide it by Delta Time to get the acceleration, but in that way you are doing it the other way around respect to what I suggested above.

anyway we should move this to #legacy-physics

have to jump onto a meeting now, so feel free to share your code in #legacy-physics and I will have a look later

[ruby surge]

Should movement input be in a character BP or in a PlayerController BP ? What is the best location for that? Currently I got it on the character, and it works, but I kinda feel it's not quite correct 🙂

[magic summit]

yeah indeed I need to plug delta time in there somehow

but need to visualize it, to understand it better

looks like what I need to do is pre-interpolate position so acceleration is smooth but yeah throwing in there 1/deltaS helped to accomodate frame time difference

[magic summit]

so I ended up with approach that I create that prediction vector, then smooth it with vinterpTo and then every frame nudge original vinterp by that prediction vector,, there is still some small jitter but much better

[topaz crypt]

@atomic salmon I think this should work https://pastebin.com/V5pHqKqJ

[magic summit]

so for me after some simplification I came up with this

[atomic salmon]

@magic summit you shouldn't get any jitter though

But if it works for you go for it

@trim matrix #umg

[magic summit]

yeah Im not sure since I have 1 in that nudge interp, so it shoudl smooth out any jitter

interesting but fixed it by addint it post interp

[orchid pawn]

there's the possibility on spawn actor to try adjust a product location if colliding, is there any way of doing that in an already placed product? (adjust if colliding)

[marsh brook]

Hey guys, I have a idea in my head
A flipbook (gliding) and I reset a timer which tells when to take fall damage

To make it more real, I am in search of how Do I change the falling speed

[trim matrix]

can anyone please me here?

[languid bronze]

Hello friends,

I have an issue which is starting to get the better of me 😅.

1. I have a level which contains an object.

2. This object will rotate when two buttons have been 'pressed'.

3. To activate the rotation I have a check for two conditions. 1 for the first button, 1 for the second button. Their logic is self contained.

4. I am doing something wrong, since I cannot figure out how to fetch the variables from the buttons into my level. I've been trying various Casting solutions but I don't think I quite understand that node since it just tells me it cannot 'fetch none', etc.

(that 'and' node connects to a branch node checking if both buttons have been activated)

Does anyone have any ideas? :D

Thanks and have a nice day!

[astral estuary]

Buttons as in physical buttons on the 3d world of your game or 2 ui buttons? 🤔

also, more arrays going inside nodes that should take only one element

I think you have digetic buttons, say, in your 3d world because you are getting all actors of Button class

the same way you got all the actors from class Button1 to tell them "hey, you were pressed" you should be able to get all buttons of class Button1 and ask them "hey, were you pressed?"

🤔

I would still use a foreach loop in that array, or a get element 0 if you are 110% sure there is one and only one button

[languid bronze]

Right 😅 . So these are physical buttons (actors with logic in them) which you approach and press E by. This then sets a variable to true inside of the button's logic.

I have two of these buttons, _01 and _02, where the variables are also re-named to avoid any overlap...

[astral estuary]

ok, if you can find them to tell them "hey, the user pressed E" you should be able to find them and ask how their bool is doing 🤔

[languid bronze]

Yeah, that is where I am struggling.. 🙁 I don't know how to fetch that variable from the level

[astral estuary]

where is the variable? 🤔

in the button? in the gamestate?

[languid bronze]

It is in the button:

I have one in each button, those are what I wish to fetch in the level

I have exposed them inside the button logic but when I go to fetch them in the level it demands I do casting, since it wants a target

The first image is the logic from within the level blueprint :)

[astral estuary]

if this gets you the button so you can call it's events, then it should also give you access to the variable

[languid bronze]

Thanks, let me have a look! :)

Do you mean like this? Here is the issue I am currently having.

[trim matrix]

you need to use for each loop

[languid bronze]

ahh...

[trim matrix]

???

[languid bronze]

You solved my issues, thank you so much @astral estuary and @trim matrix ❤️ .

[astral estuary]

Sorry aman, I suck at shaders

[tulip iris]

Alright math junkies. I have a question. I want to do a check to see which Forward Vector (FV1 or FV2) my mouse forward vector (mouse FV) is most = to.

So if it matches FV1 more than FV2 I can but that on a bool and it will pick one or the other.

[earnest tangle]

You could possibly just calculate a plane that sits in the middle facing either directly left or directly right

then you can check which side of the plane the mouse is on

or just use screen coordinates if that's applicable, if it is the math should be fairly basic

[tulip iris]

Yeah, that would work but the mouse can be clicked anywhere on screen. So that strategy will not work in this case. If I use the traveling FV of the mouse then I can click anywhere.

[supple dome]

i didnt really understand from the image but checking which one of two vectors are more equal to a third is
dot(v1, v3) > dot(v2, v3)

[tulip iris]

Ok, so you are saying I could get the dot which is the angle between them. Then I could store those in an array and get the smallest float associated. In turn giving me the nearest vector?

[supple dome]

not nearest vector, higher floats will give the one which points to the same direction, thats what i assumed by equal

if thats not what you looking for then forget the dots

i guess you want the distance from vectors then?

[tulip iris]

Yeah that was confusing. Not nearest (in terms of distance) just the most similar vector direction.

[supple dome]

yeah dot would give you that, just make sure all vectors are normalized

[astral estuary]

then the first answer was correct, dot will give you 0 if they areperpendicular (totally not in the same direction), -1 if they point away from eachother and 1 if they point in the same direction

[tulip iris]

It will give me all the ranges in between as well, and if I compare them once normalized then that should do the trick.

[astral estuary]

yep

[tulip iris]

I'm going to give that a go. Thank's for the assistance folks. 🙂

[ruby meadow]

How to prevent spawning Actor inside the Static Mesh?

I will be appreciated if anybody help me.

I don't need it, how to fix?

[swift coral]

I now have a simple actor moving to the desired location (block location v), whats the most efficient way to, for one: limit the movement to squares, so that this pathfinder moves from square to square (like a chess piece would) and secondly: how to track the amout of squares that were travelled?

[unique fox]

Hello, So I am trying to read a color from the Render texture.
But it seems not to read properly, I am always getting a default value of 1 in the R, 0 in G and 0 in B.
Despite there being any color in the Render texture.
Does the Read from render texture function even work ?

The texture in my RT seems to be correct, The Uv's seem to be correct , but only the reading values don't make any sense

[faint pasture]

Check sign of dot(MouseVector, FV1)

If it's positive, you'reor closer to fv1, if it's negative, you're closer to fv2.

That is assuming FV1 and FV2 are opposite each other. If not, dot the MouseVector with both and choose whichever has a higher dot product

[blazing creek]

Does anyone know how to modify values of variables directly in an asset? Id like to go over a bunch of blueprints and swap contents of their FText fields.

[sand shore]

#editor-scripting

[median moon]

hey

can anyone help me with this

I have Migrate this material form an online source. But i don't know why it isn't showing up

[trim matrix]

Ohh glad you replied, is there any possible way to make transparent in shape with rotation?

[median moon]

this is what it showing.... can anyone help me with it?

[trim matrix]

build lighting

[median moon]

Hey @trim matrix buddy. my name is also Aman 💯

[grave schooner]

Hey people!

I am a bit stuck here, and I hope there is some smart people here who can point me in the right direction.

I have created a Editor Widget that are supposed to export all the used textures from the selected objects in the viewport. It does kinda work atm, but if there is a instanced material in some of the objects, it will not export those textures.

Here is my spaghetti..
Thanks in advance.

[trim matrix]

That's very nice
if you're visual script-er can you help me?

[median moon]

Sorry bro, I'm just a newbie with unreal and coding

[chrome dust]

Does anybody know how to remove any sort of VR enabling upon loading my packaged project? I have a friend who has a vive and any time he opens my project it automatically launches in VR on steam

[dawn gazelle]

Edit your .uproject file and change the "SteamVR" entry to false

[earnest tangle]

I'd highly recommend disabling the VR plugins if your project doesn't use them

I've tested gamejam entries which randomly launch both SteamVR and Oculus because that's what the plugins do by default in unreal, sometimes even messing up controls

[wild crater]

Hi guys, I want to use the node "Set Selected Level Actors" but I just can't get it to appear. I've enabled the Editor Scripting Utilities Plugin. Any ideas?

[raven pilot]

is there a way to override the default "fall animation" to temporary play another fall animation

?

[raven pilot]

even without context sensitivity?

[wild crater]

yes

[raven pilot]

i see, not too sure then, maybe its in the word blueprint file

[wild crater]

What do you mean by that?

[ruby surge]

Should movement input be in a character BP or in a PlayerController BP ? What is the best location for that? Currently I got it on the character, and it works, but I kinda feel it's supposed to be in the PC.

[dawn gazelle]

It can be in either, however, if you have different characters that may have different controls, you would probably want to put it into the character. For example, you may be controlling a humanoid character who you want to have move around using WASD, but then you could also have a vehicle, which would control differently.

Rather than feeding the instructions from the player controller to the specific character being controlled, the character can just contain the movement events.

[ruby surge]

There is no downside in using it on the char blueprint opposed to the PC blueprint then?

[dawn gazelle]

Not specifically that I could tell you. You can still use some input on the PC, but just use it for things like UI control or other things not specifically character related.

[ruby surge]

Ok thanks for clearing that up.

[winter garnet]

Hey guys - question.

I have an Blueprint Actor, let's call it AActor. I want to move all its functions to an Object. Do you know a way to do that without going manually?

[mental tendon]

you can cut and copy functions by right clicking them

that makes it a bit easier

I'd like to change the properties of a Groom asset at runtime. I found a struct that contains stuff I want to change. It says: Show pin for properties.
Not sure what the Editor means by it...

[long smelt]

Hey there.

Got a curve here:

• (0,0)
• (4,1)

Setting this to post extrapolation (cycle with offset) gives me (8,2) etc.

Is there any way I can force the gradient to be 3 instead of 4, while retaining the (0:4 , 0) property?

[dawn gazelle]

Normally you would have options available if they can be made available in BP. In this case I don't think that particular structure can be modified in BP.

[mental tendon]

@dawn gazelle USTRUCT(BlueprintType) <-- doesn't that mean it is exposed to the editor?

[dawn gazelle]

The structure is, hence why you can pull it up, but the properties are not set to blueprint readwrite.

Here's the structure i was looking at:

[mental tendon]

cool

how'd expose this to the editor?

without recompiling the engine

[dawn gazelle]

Make a C++ function library that contains some functions that manipulate the structure? Not too sure myself really.

[bitter iron]

So I want to have the camera follow a character in the top down view with a set pitch/yaw (so as to not follow the characters rotation), and also be able to switch its focus between objects as necessary

so naturally, putting it on the character blueprint isn't great, so then I thought putting it on the controller would be nice but I don't think its usually done that way? just wondering what others have done

for instance, clicking on a building would zoom out a bit and move to focus on the building instead, keeping character in view, not follow character's rotation when the character moves, smooth camera movement etc. I all understand, just wondering what class its best to attach to

or I guess just make my own? I usually just hard code all this shit and it ends up biting me so I want to do it properly

[long smelt]

Making a Camera Actor would be good

[mental tendon]

@dawn gazelle where did you get the node from?
I tried this

[long smelt]

they did a live training video about this exact thing ages ago with code you can use

[bitter iron]

@long smelt like a cameramanager or is that not what you mean

[long smelt]

https://www.youtube.com/watch?v=lL89frGkM4g

[mental tendon]

just found it thx

[pastel garnet]

quick question

can you make a basic antichwat

by calling a function every .001 seconds to set the max walk speed to 600?

[dawn gazelle]

Are you talking about in a multiplayer environment or single player?

[pastel garnet]

multiplayer

(pretend it is replicated)

[dawn gazelle]

Normally the server has control of what the player's speed is - even if the player changes their speed on their side, the server has its own value set.

[pastel garnet]

true

how come people can fly and stuff in games?

if the server handles it

[dawn gazelle]

Poor net code.

[stray island]

Datura can i ask

[pastel garnet]

ah ok

[dawn gazelle]

Like, trusting client data to be true.

So a player reports in "I am at this position" and the server is just "OK! That's fine."

[pastel garnet]

right

how can we prevent that?

[dawn gazelle]

UE4 has that built in. It'll correct based on the server by default from what I've seen.

[pastel garnet]

hmm okay

so it blocks android exploiters naturally?

[dawn gazelle]

There are settings to enable the player to be authoritative for quick movement things and such where you may want to trust the client temporarily.

[stray island]

I am blacklisted i guess

[pastel garnet]

wym

[pastel garnet]

Ah ok

[stray island]

Datura ignoring

[pastel garnet]

its because u asked in a middle of an explanation

people will normally carry on and ignore

[stray island]

Oh really

[pastel garnet]

Are there certain nodes for that or do you have to like make a custom function?

[pastel garnet]

i mean from past experiences sure

[stray island]

Okay

[dawn gazelle]

Arche, you can ask whatever you want in here.

[dawn gazelle]

These would be turned on or off on the server.

[stray island]

I know but i wanted to ask (You) specifically

[pastel garnet]

Right

So that's just a basic prevention?

[stray island]

I have asked this before but i am wondering if you have different workflow or answer than others

I want to create a seamless panning scrolling static meshes

[dawn gazelle]

The server will only allow the player to be where it thinks it should be unless you've set those booleans true. It won't allow players to move faster even if the player is saying they are faster or should be in a specific place. The server would push them to where it thinks they should be. That being said, I'm no expert on anti-cheat with UE4 either, and I imagine someone clever enough may be able to fool the server somehow, especially if the player is given a means to control certain things without the server verifying that they should be able to do it or not.

[pastel garnet]

Ah okay

one question

will this block sprinting?

[dawn gazelle]

Possibly just create a series of spawners, have the actors move upwards until they hit a kill-zone that destroys them?

Kinda beyond what I've messed with to be honest.

[languid lily]

Hi, does anyone know how to make a gun customization system? I have no idea how to make it.

[pastel garnet]

could try following a modular gun attachment tut

[dawn gazelle]

So those are the default settings on the character movement component. If you change them, then it allows the client to have authority over their movement (allowing potential speed / flying exploits for those clever enough to read/write game memory etc.) If your sprint is set up as only changing the the player's max walk speed on their character movement component through blueprint, you'll find that it's very jerky, and the player will not run smoothly, and it's partly because of the server not being in sync with the client.

[stray island]

Yes exactly they move up till they be killed and seamlessly start again from down

[languid lily]

I've searched for some, but I cant find any 😦

[pastel garnet]

Ah okay, thanks a lot for the help!

https://youtu.be/muyBqlKs9hE

https://youtu.be/GtylB1An820

[sand shore]

I won't super elaborate, but you should pool these and just teleport them to the start again

destroying and recreating the actor is a bit much

[stray island]

What i did is made them as hism then added them to a timeline that resets its location but when go back to start the location again there was a bit of hick up , the scrolling isn’t smooth

And then I should put a volume that hides these meshes when they enter it, instead of destroying

[sand shore]

that's a lot better!

almost makes sense to remove and add instances with minimal care on your end

[stray island]

@sand shore but the problem is the heckup / glitch when it resets location its not smooth , do u have a suggestion

[lean epoch]

@languid lily The easy way; assign all meshes in one BP, in the right position, and all visible false. Create enumerators to any kind of piece (one for grip, body, silencer...) And one variable per enumerator. In the construction script just check the variables and show the piece assigned that enumerator. This way allows you to create BP child and just changing the variables you'll have any kind of weapon

[waxen gull]

Is there the Opportunity of a Loop Which repeats every tick ?

[faint pasture]

.... Wouldn't that just be tick?

[waxen gull]

Yea

but i dont want to make it by Branch in tick

because it is going to be computed every tick again

[languid lily]

I have no idea how to do any of that

im sorry lmao

im a complete beginner

[waxen gull]

why you even write an answer in here then ?

idc

@faint pasture you understood ?

[wary tinsel]

hey guys! I am currently working on a flight system for airplanes. Basically I want to draw a front/back loop by getting three points, let's say A(starting location), B(middle location) and C(final location). The problem is, how will I know if C(Final location) is placed "behind" A(starting location)? To draw a loop, when completed, I must always "arrive" behind the initial location. I tried something with the world position but of course it's not always working!

[waxen gull]

I would do it over the Rotation of the ship

Like if the rotation gets over 360 on one axis you succseded in a looping dont you ?

[wary tinsel]

If I do 360 yes rotation is successfully completed

but to be successfull I must be behind the starting location

[faint pasture]

@waxen gull what exactly are you trying to accomplish?

@wary tinsel you need more than just three points to define a loop.

[wary tinsel]

mmm why exactly?

[waxen gull]

Like on a tick event my Computer tests everytime if a branch boolean again ... thats if you have a loot of branches in a tick event pretty inefficent, thats why i always try to avoid the tick function and try to trigger the event over something else ... in the case i got now it has to be in tick because i need to update the position when the even is triggert (which is happening pretty rarely) and i dont want to let my computer compute my computer if a branch is true or not ...

sry but my english isn't the best

incase its not understanable

[dawn gazelle]

Maybe use a looping timeline instead and trigger it on and off as needed? basically the same thing as using tick as it fires its update path continually until stopped.

[waxen gull]

Can i set the time again while the timeline is running ?

[faint pasture]

It depends on what you're testing and how often you need results. If you want something slower than tick, use a timer. if you have to be able to start and stop it and it always lasts a certain amount of time, use a timeline.

But don't worry about tick, I run like 1400 line traces on tick and get 100 frames per second, worrying about tick is overblown.

[waxen gull]

Maby ...

but maby it saves you some fps ...

who knows

[faint pasture]

@waxen gull what is this for? What are you checking?

[waxen gull]

I want to move an object by my mouse

it't kinda overblown ... youre right but i want to be efficent and something like that is the biggest nighmare i could get ^^

so thanks

[faint pasture]

For moving something by mouse you definitely want to do it every frame, otherwise you will only see the position update at whatever rate you are updating it. I don't think a laggy drag and drop is worth the 2 microseconds you'd save.

[pastel garnet]

I used a struct for my hunger system

and I had a devastating thought

will it replicate amongst others if it is all using the same struct?

[faint pasture]

Structures just a data type like vector or float or string

[pastel garnet]

Ah okay, great!

[waxen gull]

maby ... i gonnt try out with timeline

it works

like i would like it to have it

[gentle urchin]

I cant imagine a bool taking any noticable computingpower

[faint pasture]

A timeline ticks every frame as well. How long do you expect to have something following the mouse? Like 2 seconds or minutes at a time or what?

[waxen gull]

youre kinda right

forgot about how timeline works

i guess i just take it like it is

and dont worry to much about performance ... especially when ue5 comes out

if its able to what theyre saying about it

[ancient spindle]

Hello. I'm trying to make an RTS style camera movement work properly. The camera should scroll when the mouse cursor touches the borders of the window. However, only the top and left sides work properly. The bottom and right ones trigger the movement quite before the mouse reaches the actual borders. I pained with a red line the approximate location of the movement trigger area for reference. As you can see, it looks like the game thinks the window is actually much smaller than it really is. Any ideas of what I may be doing wrong? Thanks in advance.

[faint pasture]

show how you are detecting when the mouse is at an edge

[ancient spindle]

This is my movement script

[faint pasture]

have you printed the position and viewport size? do they line up?

[ancient spindle]

@faint pasture I haven't. How do I do that?

[faint pasture]

just print string and see what the sizes and positions are and if they agree

[smoky oak]

Hi everyone, anyone know why this is happening? Point going in is fine but point coming out isnt within radius

[ancient spindle]

Sorry, I'm a bit confused. Where should I put the print string? I'm still quite new with blueprints. I just got hundreds of “hello” on the screen

[ancient spindle]

@faint pasture Ok, somehow I managed to do it, so I printed the position and viewport size. When the mouse position reaches the viewport's minimum or maximum size, the movement triggers. The problem is the viewport's size does not match the window size. So what I need to do is to make the viewport always match the window size and that's the part I honestly have no clue about. I'm actually confused about the fact they don't automatically match. Screenshot for reference.

[faint pasture]

Try it in new window

[zinc portal]

Data tables, working on how to structure my Level VO and using data table to store the relevant info. Is it really that the only way to search data table row is by the row name?

Sometimes it would be great to have the ability to search by some other column

[burnt edge]

do debug strings only show up in PIE? is there a way to get them to show in Simulate? cant find a flag for them

[ancient spindle]

It behaves weird. First I changed the window size and it still doesn't match, but when I maximize the window fullscreen, then the viewport size almost matches the window size. It still a bit smaller, but it seems the bigger the window the smaller the difference.

[valid widget]

so i made an enumerator and i cant call the selected enum

idk why

[zinc portal]

Column as a string
https://www.youtube.com/watch?v=DKqBKqcJ45c

[stray island]

How u trying to call it

[valid widget]

by calling the enum

then i wana get selected enum

so i can put it in a = to

[stray island]

Why not use switch on?

[drifting anchor]

Afternoon! I've got a weird issue where my mesh's collision remains after the actor has been destroyed. I would assume that everything associated with the actor would be removed from the level after OnDestroy is called. Am I missing something?

[pastel garnet]

yes it is suppose to destroy

Anybody know why it still damages the player?

[dawn gazelle]

You're not checking your booleans when applying the damage

[pastel garnet]

Oh, I thought this could do it?

[ruby surge]

Hmm small question, earlier I was trying to replicate my characters rotation (which I solved with some help from you guys by using controller yaw input). But now I want to replicate the rotation of my turret (the character is a tank) and therefore I cannot use the controller yaw input, since that replicates the whole pawn :/

[spark steppe]

sometimes i wonder if it's less time consuming to fix marketplace assets, or to create your own...

[dawn gazelle]

The logic there is no good. Doing an OR into a branch where both the true and false connect to the same place means that it'll always go through.

[pastel garnet]

Right

I wanted to do like if one of the two was true then it would fire

[dawn gazelle]

And right now it doesn't matter if either are, it'll always go through.

[pastel garnet]

Howcome?

[dawn gazelle]

You have both true and false connected.

[pastel garnet]

OHHH

[spark steppe]

it's still confusing, why is there a setBoth and setHungry but not a setThirsty?

[pastel garnet]

Right

[pastel garnet]

because

just because

[spark steppe]

gotcha

[pastel garnet]

I wanted it to be like

How would I go about fixing this issue?

Nevermind, I'm just dumb

problem solved, thanks Datura!

[dawn gazelle]

Also, it looks like all this logic is in the widgets? This shouldn't be the place. This kind of data should be handled on the character, and then you pass the data to the widgets to update.

[pastel garnet]

Right

I thought of doing this

but I didn't know what to put for Object in the Cast to HungerThirst

Will it work the same in the widget though?

[dawn gazelle]

Definitely not, especially if you're doing multiplayer.

[pastel garnet]

Howcome?

[dawn gazelle]

Widgets only exist on the client.

[pastel garnet]

isn't that is what is supposed to happen?

[dawn gazelle]

So player 1 knows nothing about player 2's widgets.

The server doens't know anything about anyone's widgets.

[pastel garnet]

ah okay

I don't want to replicate the widget

[dawn gazelle]

Widgets aren't replicated.

[pastel garnet]

so each individual client has a different food value and stuff

[dawn gazelle]

Widgets can't exist on server for them to replicate.

[pastel garnet]

Ah okay

When you mean 'multiplayer'

do you mean the food values to be shared amongst others?

[dawn gazelle]

I mean you are player 1, you join a server that is hosting the game. I am player 2. I join the server and I can see you and you can see me in the game.

[pastel garnet]

I understand that, what about the food system being 'multiplayer'?

[dawn gazelle]

You're dealing damage to a player in your widget. That should not be happening. The server is the one that should know and control whether or not a player is hungry, and reduce the health of the player if they are.

If you have the data and calculations in a widget, that is completely client side, so no other players would know about it, including the server itself.

[pastel garnet]

Ah right

Would it be hard to copy all the variables + functions to my player character?

[dawn gazelle]

Each would have to be copied individually.

[pastel garnet]

Okay

[dawn gazelle]

Yep

[pastel garnet]

epic

Do i put the function timers in the characters aswell?

[dawn gazelle]

Widgets shouldn't really be doing much in terms of calculation (perhaps maybe if you're trying to determine a % value or something like that). They're there to display data. Game logic should really not be in them at all. You can pass data into your widgets to update them when needed (or they can bind to event dispatchers and the like)

[pastel garnet]

Right!

One last question before I head off and start the process

When setting the progress bar's percentages, do I have to cast to the widget, and if so - what do I put in the object pin?

[drifting anchor]

Anyone know why a collision belonging to a mesh would remain in a level after OnDestroy has been called on the Actor? I can't figure out for the life of me why this is happening.

[dawn gazelle]

Casting is when you're attempting to convert an object reference to a more specific object class. For example, here I have ActorBeginOverlap, and it returns a generic "Actor" reference. The "Actor" object type does have a lot of useful information, but doesn't include any details you may have created in your own blueprints.

When you're creating your widgets, you can save the reference to the widget directly, and that can be used as a way to access your widget without casting anything.

[pastel garnet]

Thank you so much!

Never knew about making a variable for the widget when creating it! :)

[pastel garnet]

Can you send a screenshot of your code?

[drifting anchor]

This is where I'm calling onDestroy. Any other specifics you want to see?

@pastel garnet Also worth noting is that the actor does get destroyed as it's not in the world outliner after it's health is 0.

[stray island]

@dawn gazelle while ur at it can u test panning cubes if its simple

Horizontal or vertical doesnt matter

[faint pasture]

I like the animal analogy. If you have an animal, and you want to call Bark on it, you would cast the animal to dog, and if it succeeds, then you know it is a dog and you can treat it as one and call Barkfunction

[pastel garnet]

ah okay

[faint pasture]

A built-in utility function like get player Pawn or get actor or whatever, only returns a reference of that type. so it returns a reference to the player pawn, but you don't know what class it is until you cast it.

[pastel garnet]

Isn't it spawning something and then you are destroying it?

Do you even want collision on it?

[faint pasture]

It's like saying get animal, you know you have an animal, but you don't know what type of animal it is until you get more specific

[pastel garnet]

Ah okay

I think casts of like getting specifics from classes

[drifting anchor]

For reference, It's a woodpile that the player attacks until it is destroyed, and which point it spawns a pickup (wood resource). So it needs collision as I don't want the player standing in the middle of the mesh while they're harvesting.

[faint pasture]

Yes it is asking a question, is this object of this class? And if so, it returns a reference that you can treat as being an object of that class

[pastel garnet]

Right, thank you for helping me understand casts better!

[pastel garnet]

Hmmm

Doesn't the spawn need a spawn transform/location?

[drifting anchor]

It does. That's inside of the Spawn Resource function. That part is working great as it spawns the resource, and I can pick up in range. I just can't move through the original collision of the woodpile. Really weird haha

I did try moving the Spawn Resource bit after destroy and that didn't change anything.

[pastel garnet]

Right

Try this node?

Or have you already

[drifting anchor]

Oh, no I havent. Seems weird that I'd have to disable the collision if it's getting destroyed anyway, but I'll see if that fixes it!

[pastel garnet]

Alright, it is very weird as when destroying the actor it should remove collision!

[drifting anchor]

I can't seem to find a set collision node.

nvm, got it!

[pastel garnet]

Epic

[drifting anchor]

Using this guy but no change:

[pastel garnet]

hmm

any errors?

[drifting anchor]

Nope!

I tried it in a fresh level just in case, but still have this issue.

[pastel garnet]

Damn

That's a weird issue

[drifting anchor]

I know, right?!

Hierarchy shouldn't matter when it comes to components within an Actor in this case right?

I've got the Mesh as the root and a Box around it as an overlap so the player can only click to harvest when close enough.

For visual reference:

[pastel garnet]

Super weird.

Try remaking the box collision

see if that wokrs

[drifting anchor]

Well that's not the one blocking me. It's the simple collision around the mesh itself.

Stupid question, but can you remake the simple collision on a mesh?

[pastel garnet]

Don't think so

[drifting anchor]

I just did it. Click to delete, and then the Collision dropdown allows you to add a simple collision to it.

[pastel garnet]

Ah

My bad!

[drifting anchor]

All good! Didn't fix it anyway lol

[spark steppe]

so your new simple collision box is around the wood?

and the mesh collision profile is set to blockAll or something else that would block your player pawn?

[drifting anchor]

Yep! See here:

Collision is set to block all

[spark steppe]

and your player is still able to walk into it? did you save the mesh?

[drifting anchor]

Yes and yes.

[spark steppe]

does that happen with other meshs, too?

asking, because maybe your player collision is messed up, too?! xD

[drifting anchor]

Yep, I have a base deposit class that's a parent of this one. Happens there too. It's just a default cube that comes with the project haha

Would a video clip of the issue help at all here or?

[spark steppe]

probably not much

[drifting anchor]

Fair.

[spark steppe]

does your player have a capsule component?

[drifting anchor]

Yeah, it's the Top Down Template one.

[spark steppe]

ok

[drifting anchor]

!!! If the collision box surrounding the mesh is touching the floor, it causes the collision to remain lmao

Ugh, nevermind. I think it was just high enough for me to slip under. Sorry.

[ruby surge]

Is there anyone who can help me out with this ^^

[primal smelt]

When you say replicate, do you just want the player to be able to move only the turret using mouse pitch and yaw?

[runic parrot]

hI! Does anyone remember where to set the white lines on the midle for the blueprint graph?

[primal smelt]

If so you can just do two seperate input axis nodes for looking up/down and turning left/right and plug axis into add relative rotation to the turret component. Just bear in mind that you will likely hit the gimbal lock if you plug up/down into the Y (yaw) input of the add relative rotation node (try it to see what I mean). If you do (and it likely will) rotate the component 90 degrees on the "up" axis (pretty sure in blender it is Z, same as Unreal) and then when you import it into Unreal orient it how you want and plug the look up/down axis into the roll (X) input instead. @ruby surge

[primal smelt]

I'm not sure what you mean, sorry

[ruby surge]

The movement is working just fine like this, but it's not being shown to other players (it;s not replicated for multiplayer). It will be different axis keys as well (not mouse, but that doesnt really matter i guess)

[primal smelt]

Ah sorry thats what you meant by replicate. I have no experience with multiplayer, sorry 😦

[ruby surge]

darn 😉

[runic parrot]

you can set on one of the editor preference so when you are creating a blueprint, you can set two white lines on the X and Y axis to get a reference on the center

[primal smelt]

Ah I didn't know that, which means I don't know the answer to your question :p Although, is it really beneficial having that? I tend to keep things in a single blueprint fairly grouped together and if something happens (usually clicking and dragging off screen edge which can wildly pan the view) I just do a find reference on a variable and double click the results to move the screen position back into place

[runic parrot]

it just freaks me out not seeing the center

also another question, anyone knows of a way to setup a widget position = another widget position?

[faint pasture]

@drifting anchor why do you have a collision box and also collision enabled on the mesh itself?

[drifting anchor]

I'm using the collision box for the begin component overlap event so I can check if the player is inside it so that when they click it damages the woodpile. The collision on the mesh is to actually stop the player from standing inside the mesh. Does that make sense?

[radiant adder]

Can someone please explain me why I can't update the array elements of Maps Variable? Every time I try it doesn't work at all. This is my function, it's really easy, when I work with arrays it perfectly works, but with maps I can't achieve the same result.

I have 2 maps both of Strings -> Float , I want to reduce the value of the index 0 of the first map and increment the same index but for map 2. What's wrong with my nodes? I hope you can help me. thanks

[winged sentinel]

im experience somethign weird where there is no way for me to add in camera shake to ue4.26

Client play camera shake isnt in bp either

woah they changed it to matinee

is there is a new one other than matinee that I should be using?

[radiant adder]

I've found out that Map logic is different than Arrays so the SET ARRAY ELEMENT node won't work... The only way is to use the ADD node and instead of the index put the specific KEY associated to the VALUE and it will replace in the specific position.

[trim matrix]

Hi! Iam new to UE and wanted to learn this Blueprint system and wanted to ask where I can find a good Tutorial on that. Maybe a documentation or YouTube Video will help. That would be awesome!

[radiant adder]

You can read the Unreal Engine 4 official documentation https://docs.unrealengine.com/en-US/index.html or search for tutorials on Youtube, there are plenty of videos with detailed explainations.

also I've learnt a lot watching videos from this channel. https://www.youtube.com/channel/UCOVfF7PfLbRdVEm0hONTrNQ There is almost 1 tutorial for each BP node.

[trim matrix]

Thank you very much!

[prisma stag]

Hello, I am reorganizing code rn and am going to have a BasePickup class and anything that can be picked up will inherit from it. However the code I want to go in the BasePickup that will be for all the child actors is a pickup event that is fired when the player hits e on the object. In the event collision is disabled for the base mesh however I would like to disable the collision for the entire mesh no matter how many other static meshes I add to each child. How could I do that?

[keen wedge]

Could someone help me with a little bit of maths for input controllers?

I am using eye tracking to move a character left / right. The problem is that you have to look all the way to the far edge of either side of the screen to get a -1 or +1 value for the axis input.

What I'm trying to do is have a smaller area in the middle of the viewport so the player doesn't have to look so far, but the value still reaches -1 or +1 etc...

What I have currently doesn't seem to be scaling that value..

I got some help here with this the other night and I thought it was working, but it isnt...

The aim is to get an area half the size of the original viewport that is the "detecting" bit in the middle effective... so when they look at the right hand edge of that area, the value would be at +1 , when they look at the left of that area, it would be -1..

[smoky oak]

anyone ever had trouble with ai moveto? Mine is being passed the correct destination and then it goes to a point on the other side of the map

[runic parrot]

i'm not sure what you are trying to do, but check dot product

it may help

[keen wedge]

My maths isn't particularly strong...

[runic parrot]

OnConstruct event - > get mesh -> disable colission (may be other function, but something like that)

[keen wedge]

I'm basically trying to take the rectangle size of the viewport, halve it... and then have the -1 to +1 range that was from full left to right, to now be from left to right in that reduced retangle in the centre

[runic parrot]

what is the thing that determinates how much forward or up?

is this raytrace? a canvas?

[keen wedge]

eye tracking

[runic parrot]

i'm not familiar with that, sorry >.>

[prisma stag]

It cant work like that. Collision is enabled by default when not in players hands and in the world. But when the player picks it up, I need all the collisions to be disabled for the currently held item to ensure it doesnt mess up movement. Then when the player drop, or places the item, it is then reenabled. I was thinking of making an instance editable array and on begin play the array gets all the objects in the actor but I dont know if the variable would be used in the base class.

[keen wedge]

I'm only dealing with the horizontal. the gaze data returns the position on the screen the player is looking at..

[obtuse herald]

you can try to clamp the value so that a 0.5 input gives you a 1.0 as output

[keen wedge]

thats the kinda thing yeah...

but needs to be kinda linear from the centre, like it was when full screen..

in the screnshot above, I am already clamping though?

[obtuse herald]

https://docs.unrealengine.com/en-US/BlueprintAPI/Math/Float/MapRangeClamped/index.html

[runic parrot]

get the mesh a custom colission and instead of blocking or disable, use overlap (it will check when collision happen, but not affect the physics)

[obtuse herald]

try it with this node

[prisma stag]

Physics is also disabled when picking the item up and reenabled when dropped or picked up. 🙂

[keen wedge]

to use that I think I'd need to change a lot of how its calculating stuff though wouldn't i?

I dont get a 0.5 for example..

I get the coordinates of where the player is looking..

[obtuse herald]

Oh, i see

but you want to get a range from -1 to 1 right?

[keen wedge]

I thought this was working when I got some help the other night, but I can tell it isnt' because if I look all the way to the far edges of the viewport, the character moves faster etc..

yeah, I'm affectively trying to convert it to the same kinda range you'd get from a gamepad..

so, full viewport, works fine, I end up with -1 / +1... but now I want that for effectively half of the viewport, centred in the middle of the screen (you just dont see it etc, invisible area)

(sorry if I'm not explaining this very well)

[obtuse herald]

Does your speed increase linear when you look from the center to the edge?

[keen wedge]

I believe so... if I currently look very close to the character (in the centre), it moves very slowly... if I look a little further out, it speeds up a bit, if I look all the way to the edge, it moves at its fastest speed...

the above example I thought was creating that -1 to +1 range etc..

Thats the other side of it... the branches are just determining the direction its facing, but the AddMovementInput is the relevant bit really.

the check for 0.1 is just because if you look at the character itself, it never stands still, so I put in a little bit of a "sensitivity" check..

[obtuse herald]

Ok, as far as i understand it now you get -1 to 1 output, but you want to center it more.
I'm pretty sure you can use Map range clamp for that. put the -1 to 1 output as input for map range clamped. set InRangeA/B to -0.5/0.5 and OutRangeA/B to -1/1. This node will then basically output -1 when your input is -0.5, -0.5 when you input is -0.25 etc.

[keen wedge]

Like this?

[obtuse herald]

yes

[keen wedge]

obviously those values are dealing with an exact 50% reduction... in my updated version I was passing in the scale, rather than always using the division of 2 etc...

I'll try the above quickly and see if it works though...

That definitely "feels" like its working, I dont feel as if I have to look so far across the screen etc and it maxes out the speed before I do anyway... so i think that's working...

So... how can I get that result, but using the "maths" kinda stuff instead... that way, I'd be able to pass anything in rather than always the division of 2 and wouldnt have the hard code range clamp etc.

?

looks like another division to me, but my maths really isnt this strong 😦

[obtuse herald]

do you want to know how map range works or what do you mean?

[keen wedge]

What I mean is, how can I get that same out put, but without using that node... and instead just change the calculation going on here..

[obtuse herald]

Oh

[keen wedge]

that way, I can replace the division of 2.0, 2.0 etc, with anything I want, and the "maths" stuff will still work etc...

rather than having the hard coded 0.5 in the clamped range...

[pine idol]

Can anyone tell me why, even though this transform array variable has multiple DIFFERENT values, it continues to only put pull the first value from the array in a for loop? https://gyazo.com/c1707feb77263cef5750c60617a046d9

[keen wedge]

which feels like its doing something related to dividing my value by two perhaps?

[obtuse herald]

You don't need to use -0.5/0.5 as InRange, meaning it's not related to the divison you do at the beginning.
You can also use -0.75/0.75 or -0.25/0.25 as InRange, which will change the sensity.

[keen wedge]

Yeah, I get that, what I mean is, I need to calculate that really... becaues that -0.5 / 0.5 range is because I'm trying to make the inner (invisible) area HALF of the size of the main viewport... but I dont want to be hard coding numbers in at all, I'd rather set the scale that I want once, and then have the maths take care of it... I guess I could take 1 and divide it by my scale and pass that into the ranges, but then I still have to handle the negative/positive stuff... just feels like I should be able to do something with the maths in that example above and not need the range clamp

[keen wedge]

(whats happening in the Loop Body and in that Completed execution pin)

[pine idol]

nearly nothing

[inland cargo]

Silly question how do I get this node cant seem to find it ;/

[pine idol]

https://gyazo.com/8b381894feeac773556b85ce3e7d2824

[keen wedge]

Without seeing what you're doing with the element from the loop its kinda hard to tell....

[obtuse herald]

vector + vector

[pine idol]

Here you are. 🙂 https://blueprintue.com/blueprint/_30jc00f/

[inland cargo]

@obtuse herald cheers!

[pine idol]

ignore the double line trace, I know I need to fix it. haha

[sand shore]

@pine idol it loops the right amount of times but the transform never changes value on the output of the for loop?

[pine idol]

correct. it ALWAYS grabs the very first transform from the array, no matter what index it's on.

[sand shore]

@pine idol do you write C++ for this project!

? I mean

[pine idol]

no, just bp.

i know some c#, but c++ has always eluded me. lol

[sand shore]

Well it isn't hot reload

[obtuse herald]

you're adding something to the array while looping through the array, avoiding that could fix the issue

[sand shore]

@pine idol have you ever modified standard macros?

[pine idol]

I am, yes, however, it adds to the end of the macro. And although not pictured, I've tried keeping the new additions to the array completely seperate until the loop has completed.

[pine idol]

Absolutely not, I would create a copy and modify it if I needed to

[sand shore]

hm

Just filling out the sanity checklist

[pine idol]

feel free

cause I've lost my sanity working this.. lol

[obtuse herald]

try to not modify the array in the loop and see if that works

[sand shore]

@pine idol have you tried not storing that transform array in a struct?

[keen wedge]

there's a few things I cant work out with this, but that ForLoop doesn't have a starting index?

[sand shore]

It might be a very weird thing with getting the array out of the struct. Containers work a little differently to plain values

[pine idol]

I will try that again, but I believe I've tried that before.

[sand shore]

it will be treated as 0

[pine idol]

I have not, but I've exposed the array before, and tried having it a public var just to view it, and same result

[keen wedge]

so, if the LastIndex was also 0, then it would only iterate once, yeah?

[pine idol]

The loop is for if I want to run index multiple times before moving to the next one. 🙂

[obtuse herald]

yeah that could be another reason, ue4 is sometimes weird with nesting structarrays

[sand shore]

@pine idol okay so, set a breakpoint right on the for loop, and show me the value of the copied array when it hits

[pine idol]

I will try and do so asap, I have to run an errand right fast.

I appreciate yalls suggestions. Hopefully one of these fixes it. 🙂

[sand shore]

no worries!

[pine idol]

What are you looking for in the breakpoint, just in case I can't get back as soon as I think I can?

[sand shore]

@pine idol just what the values are right when the macro is instantiated

well that isn't the right word but whatever

[pine idol]

i gotcha

ok. 🙂

thanks again

[keen wedge]

any takers on the screen issue I was having... fully appreciate ToyB's suggestions, just wanna see if there's any others...

[sand shore]

make a curve asset

-1 to 1 input range. Whatever scale you need as output.

can have different curves and let players pick, or maybe you can even do an in game curve editor

[keen wedge]

its all getting too complicated... just wanted the "maths" bit I needed to add to the above to finish it 😦

[solid summit]

Hello I'm wondering to hide my hud during the level sequence. This is what I've got in my level 1 blueprint. my hud is ac main widget.

[worthy frost]

@solid summit why not call SetCinematicMode on the controller?

[solid summit]

@worthy frost This was my first time making a sequence cutscene and I was following a tutorial so I don't know about a setcinematic mode. How would I do that?

[worthy frost]

PlayerController->SetCinematicMode

[astral estuary]

Is there a text component just for debug stuff? Like arrow but with text 🤔

[obtuse herald]

Draw debug string

[solid summit]

Hmmm I've tried various ways of connecting it and it doesn't seem to be working. Thank you for your help though!

[rough wing]

How can I call this function from an actor component?

[obtuse herald]

Call it with the GetOwner node

[rough wing]

Doesn'y work @obtuse herald

[obtuse herald]

GetOwner > Cast to your actor > get BeamMesh > Add spline mesh component
but i wouldn't call that good practice, because your actor component will then only work with your actor making this an unnecessary step. But maybe i'm just missing something rn

[noble basin]

im trying to run a check for when the player is using a controller to change ui elements to controller ui, i try using the is gamepad key function

but it always comes up false

would anyone know how to help?

[sand shore]

making a curve should be pretty simple and you can't beat them for configurability. everything else I mentioned? sure thats way overcomplicating it.

[cinder laurel]

Hi, I'm trying to use the ExportFBX node frome sequencer in blueprint. But I have no idea how to create the Override Options for the input. Can someone help me?

[trim matrix]

Does anyone know how to do orthographic camera shakes in UE 4.26?

[dense tulip]

When doing Migration, why does the whole project get migrated and not just the files i select ?

[rough wing]

Sometimes the files you want to migrate may require other assets to work

It will migrate everything related to the asset you want to migrate.

This is how I'm creating and adding spline mesh component

This is how I'm trying to delete the spline meshes

But they don't get deleted

[light glen]

is it possible to do something like if value in array[1,4,5] ?

or can i only iterate over?

[tight schooner]

@light glen is there an "array ==" node?

Open the "library" window in the BP editor and see what nodes are available for arrays

Maybe there's something useful

[swift coral]

TL;DR. my nav mesh doesnt work with newly added objects. So as you can see in 1 i have two checker fields, both covered by the nav mesh and a pawn with movement that doesnt allow him to move over obstacles. as you can see in picture 2, when I place the same block that is later placed in the game manually in the scene, the navmesh actually gets divided. And when i try out to place something behind this block, it gives off the proper result (the material turns red) because the pawn notices that he cant reach his goal. But when I place blocks over the game as in 3 the pawn moves towards the object but doesnt notice that it cant reach it. It doesnt make the material red and does give me the result "request succesfull" after the AIMoveTo node. Partial Path is already turned off, so that cant be the reason. Have you any ideas, which setting I need to take, to avoid this issue?

[carmine quest]

hello, is it normal that retriggerable delay is not blocking inside a for each loop? Basically I need the loop to wait for the delay to end before actually looping to the next item, is it possible? Right now it seems to be executing in parallel

[earnest tangle]

Delays are always in parallel. You'll have to manually implement the looping with the delay if you want it to behave like that

[carmine quest]

ok seems normal, will try to find a workaround based on this video as I need a different delay per loop iteration (https://www.youtube.com/watch?v=zh8xx9abzZY)

@earnest tangle thanks, it confirms what I found 🙂

[trim matrix]

Hi, anybody else have issue with changing keyframe values (trasform) in sequencer? I duplicated camera and i want to enter exact offset but it's not working. I can slide change but can not enter exact value. I tried in sequencer, in detals panel and on keyframe properties itself. Anybody knows whats going on here? Thanks!

[keen raven]

hi, im new into unreal engine, how could i make a "health sphere" drop after a destructibe mesh tears into pieces?

[earnest tangle]

just spawn it in where ever you need it?

[keen raven]

i created a destructible mesh, and i want to spawn a health sphere (already created), after the object tears into pieces

but the destructible mesh doesnt have a blueprint

so i dont know how should i approach that problem

[carmine quest]

@keen raven create an actor blueprint with your destructible mesh as a component then register to event https://docs.unrealengine.com/en-US/BlueprintAPI/Components/Destructible/index.html

OnActorFracture or OnComponentFracture

[haughty egret]

If I am an actor(1) and bind to an event dispatcher in another actor and then actor1 is destroyed. Does that automatically clean up that binding or do you have to unbind everything prior to destruction?

[keen raven]

thanks! ill try that

[carmine quest]

It should be cleaned up iirc

[prisma stag]

Hello, in my game I have a way for people to pickup and drop items, so I made a BasePickup class that any item that can be picked up inherits from. However, the problem Im having is, when you pick up an item I need that items collisions to be disabled. Now since this is the parent class I dont know how this will work, but what I made was and Object Array variable but the array element cant be put into a SetCollisionEnabled function. What else could I do?

[earnest tangle]

@prisma stag you can use Get Root Component -> Cast to Primitive Component, and if it succeeds, you can set it to the target pin. You could alternatively have a function in your BasePickup class called "Picked Up" or whatever, which sets it into the correct state it needs to be in when it's been picked up.

[prisma stag]

What do you mean setting it in the correct state for the second part?

Are you saying to do the Cast to Primitive Component for the loop body?

[earnest tangle]

Yeah you could do the get root and cast within the loop body

by "set to correct state" I mean the function would just do things like set the collisions off when called

[spark steppe]

why do some data types not show up when setting up function inputs/outputs? e.g. World

i want to create an interface where one method has an world input, but guess thats not possible with blueprint?!

[prisma stag]

I dont think this would would as the children of the BasePickup are gonna have different amount of static meshes so I need loop to be able to turn off all the collisions of the static meshes on the child when picked up.

I will try the cast and see how that goes.

[earnest tangle]

You could have it iterate all the static meshes within itself

there's a get components by class or something like that

the casting option would have the same problem, since you'd only be toggling it for the root component in that example

[spark steppe]

thank you lorash, both sounds like an valid approach

yea you just remembered me about how BP Function Libs do it with their world context object

but what i want to archive works with neither 😭

basically i have an actor which tells my game instance to stream in levels, now i want to notify the actor which level got loaded

well, guess i'll make a map with names <> worldSoftObjects

screw it, names <> uobject soft references xD

which i cant cast to world soft objects... oh deer

[patent ermine]

I am loading glTF files from disk. Potentially hundreds. What the above blueprint does, is parses the folder for all available files, and then starts loading them. My issue with this is that the logic completely halts until all files are loaded, and at that point displays all meshes. What id like to do, is to start loading these files without blocking the render thread or game thread, so that as it gets loaded, it gets displayed. Any ideas as to how to achieve this? Any input is appreciated. Thanks

[cerulean venture]

it would do the delay one at a time