blueprint

[rare ember]

How do i get the mesh from a pawn?

[tender glen]

Get Mesh

[white crypt]

first cast to the blueprint(pawn)

[rare ember]

???

[white crypt]

cast to the pawn

cast to "pawn class name"

[rare ember]

I see, I'm an idiot

thx

[dense saffron]

@maiden wadi You just helped me figure it out! you're right it made no sense for the normal line to be that large because the normal was my trace end to hit location being trace start so the line was going from the location to whatever point the normal is in world space. What I actually needed was to do (hit location + (Hit normal * a number)) for my trace end and it got me the line I needed

[foggy oyster]

Random question, why are you link line things like boxy, or is that just an older version on UE4

[thin rapids]

Random question, why are you link line things like boxy, or is that just an older version on UE4
@foggy oyster you mean the wires?

[foggy oyster]

yeah

[thin rapids]

it's a plugin

[foggy oyster]

cool

[white crypt]

you can get somewhat similar outcome by changing some of the settings

http://vicsdevblog.blogspot.com/2016/04/achieve-straight-node-lines-within-your.html

its not the same though

[brazen ridge]

Could anyone point me toward a simple direct keyboard input tutorial or documentation please?

I'm trying to make it so users can type in numbers and have them displayed on screen but its proving harder than expected

[jaunty dome]

as in you have a form and users type in the number ?

or as in you have a pad and player taps on numbers ?

http://vicsdevblog.blogspot.com/2016/04/achieve-straight-node-lines-within-your.html
@white crypt I have tears in my eyes

thank you

[white crypt]

umm, you are welcome i guess 😄

[jaunty dome]

so

say i have an array of vectors

is there a builtin function to return the nearest vector to the player

or should i create it myself?

[white crypt]

i think you will have to check the "distance to" for each loop

oh vectors, then you will have to calculate the distance

for checking distance between actors theres a "distance to"

[jaunty dome]

yeah

thought there is a built in function

for vector arrays

that plucks the nearest vector

problem is, i'm afraid it will hinder the performance

[white crypt]

not that im aware of

[jaunty dome]

if i simply use loops, for every AI point

I mean for every point the AI decides to go to

[brazen ridge]

as in you have a form and users type in the number ?
@jaunty dome I would prefer if the player could just type numbers directly from the keyboard directly into a UI text box

would I need 10 individual things for each number (1234567890) or is ther a simple "detecth whic key is pressed"

[jaunty dome]

in UMG->Input->Text Box

easiest way I could think of

[white crypt]

theres a function inside widgets "on button down"

and you could check if its a number or not

[jaunty dome]

also that

[white crypt]

but yeah there are several ways of accomplishing that

if you convert the input to a string theres this https://prnt.sc/t05ns3

[jaunty dome]

the basic idea is just to use UMG, stick the UI onto the pad

then do your logic within the Widget BP

and on success/fail, Emit a message

that's about the whole gist

hummm

alright i don't care about getting the nearest vector in an array

is there a way i can scramble an array ?

say there is LocationsVectors, and AvailableLocations

[white crypt]

shuffle?

[jaunty dome]

humm let me see

alright i'll rewrite my logic to that

thanks bro

[brazen ridge]

I'm trying to create an algorithm where the user inputs 2 numbers and it outputs the shared highest common factor

[swift warren]

@brazen ridge https://en.wikipedia.org/wiki/Euclidean_algorithm

[brazen ridge]

I don't have a clue how I'd convert that to UE

static int32 GreatestCommonDivisor
(
int32 a,
int32 b
)

I found this on the documentation

[gray rapids]

Im having a wierd error

https://cdn.discordapp.com/attachments/394159665266688003/722105006995669052/unknown.png

Using this recoil script, if i Reverse the timeline, everything works like normal. but if i do Reverse from end, i get error message

https://cdn.discordapp.com/attachments/394159665266688003/722104779840553030/unknown.png

[tight venture]

@timid rune did you ever get that figured out?

[white crypt]

@gray rapids your problem is not in the picture that you provided. your issue is that your weapon reference is invalid(NULL). you need to it set it the same way as you did for "reverse"

[tight venture]

I have a BP class for a piece of poop that flies through the air. I want the poop to be spherical before it lands, and cone-shaped afterward.
I do not want to perform mesh deformation, as this part of my game is not nearly important enough to warrant all that work. All I want to do is have two meshes and swap them out OnHit.

My question is:

Should I create a mesh placeholder (don't know what that would exactly be called), and change the mesh at runtime? Or should I just create two meshes, and swap Visibility settings? Which is more performant?

Swapping the visibility settings seems like it would both be easier and more performant...

[white crypt]

if you dont have 10k poops flying around there wont be any difference

personally not sure which is more performance friendly, you would have to emulate thousands of them to see the difference

[tight venture]

Changing a mesh at runtime (i.e. destroying a mesh component and dynamically creating a new cone mesh) seems more expensive

[white crypt]

why destroy, just set a new mesh

[tight venture]

Well, why not destroy, if the old one's not getting used

[white crypt]

you can set a new one for the same component

[tight venture]

anyway, I think I'm gonna go with the Visibility swap... just wanted to kind of "think it out" on here

oh, I didn't know it worked that

way

And no, I won't have 10k poops flying around. Maybe 100 at most

[white crypt]

https://prnt.sc/t06mkm

[tight venture]

👍

[white crypt]

i dont think you will win anything by going either way

[tight venture]

thx

[gray rapids]

@white crypt I dont get it. What do you mean set it the same way?

[white crypt]

show your code before your timeline

your weapon reference is not set for one of the inputs for the timeline

[gray rapids]

But the thing is, if i just REVERSE i dont get any errors. but if REVERSE FROM END i get error

why does doing it From end make my pawn invalid?

[hoary orchid]

is there a way to Disable Mouse Button Input only?

[gray rapids]

It says that my playerPawn is null when i try to do the "add pitch to controller"

[white crypt]

oh damn right it says pawn, im a bit sleepy so read it that it was your weapon ref

hhmm, maybe try on begin play to promote that pawn into a variable

and replace your get player pawn with that

somethings fishy

[gray rapids]

Yeah i mean everything works as it should, i put some "is valid" branches before i do the pitch change, and now i dont get the error

but im just confused as to why my pawn would suddenly become null if i Reverse from end

[white crypt]

sure is valid will fix that but i agree with you that its really weird

[gray rapids]

since the regular reverse gives 0 errors

[white crypt]

is it a multiplayer game?

[gray rapids]

Ya

[white crypt]

cant you get the exact reference of the pawn that is using this logic?

because you are trying to get it at a 0 index and that might be conflicting in some way

[gray rapids]

I suppose, but i mean for now i aint gonna fix something that aint broken, for now xD

[white crypt]

im almost certain that its a multiplayer issue on how your logic is set up

[gray rapids]

Yeah i mean

putting it like this instead gives me no errors, even without Is valid

but both functions exactly the same, from what i can see

even with the errors

[white crypt]

your problem was that you were using get player pawn

i suppose

https://prnt.sc/t06vie this should work too maybe

if you set the owner when spawning that actor

[gray rapids]

I mean the weird thing is that the error didnt seem to affect the gameplay in any way

Now for a follow up question. Is there a way to the reverse recoil slower?

[white crypt]

i think you can change the playrate

of your timeline

https://prnt.sc/t06xjp

[gray rapids]

worked perfectly, thanks

[last jetty]

Hey, I have a newbie question. I'm trying to make my character's attack check if the target has a variable called "MonsterHealth" and if so, then deduct a value from it. I can't work out how to check if the target has a variable with that name

[tight venture]

what are you trying to actually check? if the character has attacked a monster?

[last jetty]

One tutorial I found accomplished the effect by creating a branch to check every monster in their game, but that seemed like a mess

I'm trying to check if the target has a variable with the matching name

So when the character attacks, it checks what the target is, then checks if it has the matching variable, then deducts a value from it if so

[tight venture]

what i'm saying is... just tell us (big picture) what you are trying to do. you may be going down the wrong path with the whole checking-for-a-variable-with-this-particular-name approach

e.g. i need a way to deduct health from monsters that my character attacks, but ignore anything that's not a monster

[last jetty]

Ah sorry, yeah it's exactly what you described

[tight venture]

hehe, okay. well, do you have a class BP_Monster?

[last jetty]

Yep

I'm struggling to get my head around the idea of how to change the value of a variable for an object that has yet to be determined

[tight venture]

so, where you are inserting your attack logic, do you have a cast? cast to BP_Monster?

on the target of the attack?

[last jetty]

The attack logic is in the playable character's Bp and tries to cast to an undetermined monster

Because each monster has a different BP

[tight venture]

okay. first off, make an abstract base class for all monsters

and have all your monsters derive from it

[last jetty]

I was beginning to realise that mistake from when you mentioned the word 'class'

I feel dumb lol

[tight venture]

don't feel dumb, no worries

it's just the learning process

anyway, make a new class BP_Monster, and put everything that all monsters share identically (variables, meshes, whatever... anything) into this base class. go into the class settings and check the tick box for abstract class

or not even identically, excuse me. meshes, yes, but variables, just the presence of the variable is enough

[trim matrix]

You can look up at inheritance

it's essential for programming imo

even if you want to do the game in bp only

[tight venture]

if all monsters have, say, Health variable, but every type of monster has a different starting Health, or value for that variable, still you want to put a Health variable into the base BP_Monster class, then override its value in the children

[trim matrix]

@last jetty Bro, all you have to do is cast the variable

then you can drag out the value

So lets say enemy variable is actor

on that variable drag pin, cast to (What ever monster you have)

you will have access to the HP or any variable inside it ONLY if that Actor is successfully casted as what ever you are casting

[tight venture]

you would just cast to BP_Monster, no matter what specific type of monster it is. when the engine acts on a BP_Monster, even though it may actually be a BP_Gremlin, it still actually is a BP_Monster as well (cuz all BP_Gremlins would also be BP_Monsters)

[trim matrix]

It might take a while to wrap your head around it, but I promise when you understand the concept, you can do sooo many things

[tight venture]

so you could put a function BattleCry() in BP_Monster, and then in BP_Gremlin, you would overwrite BattleCry() to let out a Gremlinish whine, but as far as the engine knows, it's just calling BP_Monster.BattleCry(). Get it? It's called Polymorphism, if you want to look it up

[last jetty]

So I quickly copied one of the existing BPs and turned it into an abstract class, then created a child BP. In the child BP, none of the variables are listed, but I am still able to get/set them.

Is this normal?

[tight venture]

gtg bbl

[last jetty]

Okay thank you for your help ❤️

@trim matrix Thank you for your help too, I'ma try learn about inheritance now

[trim matrix]

Yeah u dont see it

but it's there

as long u are child of that parents

all the children will have the same variable as the parents

but that children can have variable on its own too

For example Animal is the parent

there is variable called number of legs

Cat is children of animal it's value will set lets say to 4 legs

where human which is also a child of animal have 2 legs

but children might have variables that others dont have for example human have variable CarBeingDriven

How should I set up my characters rigging in Blender if I want to make modular character? And if I just make skeleton for the head part, can I import other parts without bones?

I understand the master pose node but I dont understand how should I setup the body parts

[last jetty]

@trim matrix So is casting to a class different to casting directly to a BP? I'm trying to test it right now, but cannot seem to connect variables to it like I have been with casting to a BP
(Ignore the error message, it's unrelated)

[soft swan]

Could I possibly get help with something in UE4? I want to make VolumeTrigger(2) inaccessible until the player character has gone through VolumeTrigger(1)?
https://puu.sh/FWwBn.png This is what I was working with, just not sure how to essentially run a 'check' to verify the player character has gone through VolumeTrigger(1) to then be able to go through VolumeTrigger(2)

[swift warren]

@soft swan have a boolean that is set to true when the player goes through trigger 1

and when they go through trigger 2, run it through a branch on that boolean

[soft swan]

like this?

I tried this last night before I went to bed

[swift warren]

the branch is in the wrong spot

you should make it the first node after you cross trigger 2

oh wait

yeah like that

make sure its not set to true by default

[soft swan]

Let me double check, but it
wasn't working last night

https://puu.sh/FWGEj.png

[swift warren]

hm

the issue might be somewhere else

[soft swan]

Any idea

[swift warren]

really dude

just gonna leave that there in the middle of a discussion?

you could at least wait until we are done with this issue

@soft swan what part of it isnt working

like, is the level not loading?

[hot mural]

Sorry

[soft swan]

here I can do a recording real quick. But yeah the balcony isn't loading

[swift warren]

make sure you have the level name right

one time i was tearing out my hair over levels not loading and realized i had made a typo

[hot mural]

So can i ask my question now?

[soft swan]

https://puu.sh/FWGM3.mp4

Yeah I just double checked the names and they're all 👌

[hot mural]

That looks pretty cool

[soft swan]

ty

[hot mural]

Is he still helping you?

[soft swan]

I think so not sure

@swift warren

[swift warren]

yeah idk

it should work

[soft swan]

@hot mural go ahead 🙂

[hot mural]

Im new to unreal and was following this tutorial where he linked CBRef to target, and i am unable to.

Woops wrong picture

its the second picture

[tawny tinsel]

my child widget wont appear help idk why it wont exist

[swift warren]

@hot muralwhats cbref

not enough info here

[hot mural]

The character reference

[soft swan]

I think you'd do the "GetPlayerCharacter" instead right

[fathom cobalt]

Does anyone know how to make the game count how many procedural meshes have been generated?

[swift warren]

wow people have absolutely no care for others here

[hot mural]

@soft swan honestly you might be right im not sure tho im pretty new to unreal and was just following this tutorial.

[soft swan]

(I fixed my problem!!!!!!!!)

[astral fiber]

Hi guys,
I want a public float variable for an actor, so the user can choose a value from the editor.
The problem is, that I cannot predefine values. I could use an Enum but is there a way to define floats and let the user choose one from a dropdown in the editor?

[earnest tangle]

Is there some particular reason it has to be from a certain set of numbers, and if so, why wouldn't it be easier to just use an enum in the first place?

(It should be fairly trivial to convert an enum into a float)

[astral fiber]

Yes there is a reason, the actor is only available in these modifications.

I found no way to convert an enum to a float

This is the only way I found turning an enum into a float

[earnest tangle]

there's a "select" node which should do the trick

iirc it should give you a pin per enum value so you can just hook up the numbers you want for each value of the enum

[tight venture]

@last jetty Did you get that figured out?

I'm making a game wherein cats poop on the floor, and the apartment "takes damage" when poop gets on the floor.

A have an abstract BP_Floor class with a box collider just peeking over the top of it, for overlaps with the BP_Poop actors

Now, I am subclassing BP_Floor into different types of flooring, to give different amounts of damage depending on which type of floor gets pooped on, using BP_Floor::DAMAGE_MULTIPLIER. (BP_Hardwood::DAMAGE_MULTIPLIER = 1.0, BP_Carpet::DAMAGE_MULTIPLIER = 2.5, etc)

My question is:

How should I handle when the poop lands on the junction between two floor types?

[tawny tinsel]

help

[tight venture]

It will trigger both the overlaps, and I don't want both damages counted, just the one with the higher DAMAGE_MULTIPLIER

[tight venture]

How should I approach this?

@tawny tinsel click on the farthest right-most clickable text in your error message

That's a null pointer exception

Whichever node it takes you to, post a screenshot of it and all surrounding nodes

[flint nymph]

make sure you're sending the damage message from the poop to the floor, do a BoxOverlapActors from the poop, set a temporary DamageMultiplier variable "TempDmgMulti" at 0 and a TargetFloor actor variable, then a ForEachLoop, cast to the BP_Floor parent class to get the damage multiplier for each overlapped floor piece, branch with condition Damage Multiplier > TempDmgMulti, if true set as new TargetFloor to damage. On complete send the damage message to TargetFloor actor

you could also sort by location which might be more fair to the player

[tight venture]

BoxOverlapActors... i'll check that node out, never heard of it

As of now, I just have this in BP_Floor

Oh, cool! Thx @flint nymph. I didn't know about that node, that's exactly what I need

[flint nymph]

yeah you'll instead want to send the damage message from the poop instead of handling it in the floor itself probably

[tight venture]

👍

Didn't know about GetActorBounds either 😉

[tawny tinsel]

@tight venture

[tight venture]

Give the GAMEMODE a default value for the text variable, then try again

The error is just saying that that variable is null, and it's trying to read it.

[tawny tinsel]

nvm i fixed it

i wasnt spawning my widget right

[tight venture]

k 🙂

[latent arch]

Hi all, id like to track all scene components of a specific types world locations - what's the most efficient way to do this? They may be attached to moving actors and they may be stationary.

but i need to know where they all are and ill use a delayloop etc to keep the locations updated - im just struggling to latch onto them im always returning 000 locations

[tight venture]

@latent arch You could keep a list of them in the GameState, and then when you spawn one, add it to it

Then just loop through the list and call GetActorLocation on them

Depends on what you mean by "track"... what you're using it for

@flint nymph Like this?

[latent arch]

well i want to basically have an active radar that tracks audio emitters (scene components) in relation to the player so i can use the information to manipulate the sound effects etc. - i did try a loop but it was very laggy, but that may be where I'm missing something :/

ill be using a timer or delay loop to ping the locations regularly as event tick will be too resource consuming

[tight venture]

Just use PlaySoundAtLocation(GetActorLocation(source)). You don't have to keep track of them manually at all.

[latent arch]

well the only trouble is that this game uses a Wwise integration so it uses AKcomponent scene components as emitters

[tight venture]

@flint nymph Only part I am unsure of is whether OnOverlap events are fired off in parallel. i.e. if the DamageGiven boolean flag will work as intended to prevent the "second" overlap from doing anything

@latent arch sorry, I don't understand what you just said. Anybody else think they can help?

[latent arch]

@tight venture sorry 😦

[tight venture]

lol I don't know what Wwise and AKcomponents are

[mossy barn]

Hey everyone. I've created a level sequence using my camera for my main menu background and it plays for a bit and then switches to my player camera and then switches back to the level sequence. I'm not to sure why, its meant to stay on the level sequence the whole time.

[tight venture]

@latent arch if that's C++ stuff, you may have better luck in #cpp

[latent arch]

well no its not really as its all already in the game / engine as registered components - im just struggling to track them moving raround - i can "set" them as objects and variables etc etc but no farther

basically i need to be able to find and track all USceneComponent

if i can do that then ill try and sort them to just the AKcomponent

[tight venture]

@latent arch That sounds possibly like AI Perception. Are you familiar with using AI Perception? (It may be irrelevant, I just still am trying to understand what and why you're doing)

@mossy barn You may want to look at your camera's AutoActivate setting

[latent arch]

basically the game im working on uses a middleware for the audio so it uses AKcomponent as "speakers" instead of the UE4 sound emitter - i want to track them instead of just tracking all actors etc id like to just track sounds

[mossy barn]

@tight venture Where would I find that?

[latent arch]

if i can know their world locations in semi real time i can manipulate their sound based on velocity etc

[tight venture]

Also, above it is Auto Player Activation

That, actually, is what I was talking about, really

When a camera auto activates for a player, the game's view automatically switches to that camera

If you're creating your cameras dynamically, I'm sure there is a node for activation

@latent arch that sounds like AI Perception.

Create a sound stimulus for each emitter, then create an AI Controller for your character, and add an AI Perception component to the AI Controller, and set it to listen for sounds

And also, activate your AI Controller on your character by selecting the one you created to be its AI Controller

[latent arch]

ooh that sounds interesting, so i can attatch an AI to my controller position that does the tracking for me?

[mossy barn]

@tight venture Yeah I use a player start so I don't get the editor details pannel for its camera. The autoactivate for the level sequence camera, I tried off and on with no change to the result.

[tight venture]

Then your character will be able to "hear" your sounds realistically, and you won't have to track them manually. You can add logic inside the AI Controller

[mossy barn]

@tight venture Well I dont even have a player start because its the main menu

[tight venture]

@latent arch check out this tutorial series on AI

https://www.youtube.com/watch?v=zNJEvAGiw7w

I'm using it for sight, but sound should be similar

[latent arch]

thanks i will

[tight venture]

@mossy barn Are you creating cameras dynamically or do you have a set number of cameras created beforehand that you're having trouble with it switching back and forth from?

[mossy barn]

@tight venture So I have one single camera on the map and that I am using in a level sequence for my main menu background. I don't have a player start or anything. But when I play the level sequence goes half way then cuts to my players view and then like 5 seconds later it cuts back to the level sequence (Which is looping) and stays there. So it only cuts to the character once and then cuts back, just dont know why its cutting to it at all.

[tight venture]

I don't quite understand... you have a player character spawned during your main menu sequence?

[mossy barn]

No. No character or player start is spawned yet the character spawns anyway

[tight venture]

You don't want it to, correct?

[mossy barn]

No. I don't want any player chacater

[tight venture]

It sounds like you need to create a separate Level for the main menu

Where no player character will be spawned

[mossy barn]

This is a separate level to the game

[tight venture]

Sounds like the trouble is that the player character is even getting spawned at all, not anything to do with cameras and what not

[latent arch]

as a failsafe / backup. how would i report a USceneComponent world location?

[tight venture]

@mossy barn are you kind of like... playing a montage of gameplay footage in the background of the main menu?

@latent arch just use GetActorLocation? or if you want the component's location, I think there is a GetComponentLocation, too, providing the actor it's attached to

[latent arch]

hmm, i wish that was working for me i just keep getting 0,0,0 :/

[mossy barn]

No my background is an actual scene with the camera going forward and backward in a loop

[tight venture]

@latent arch When you are moving your components around, you may be moving them around relative to the actor it's attached to. So, the actor is always staying at 0,0,0 but your component is moving around relative to that. Either make the component the root for the actor or, if that's not possible/doesn't make sense, try getting the main actor's location and add the component's relative location to it

Easiest fix is to make the component the root, if that's possible

then the component is the same as the actor's location

[flint nymph]

@latent arch so this isn't providing proper locations?

[latent arch]

hmm i dont think it is at the moment , but you think if i just get generic actos then add the component to them that might work?

@flint nymph hey Joe, thanks for your help - i will try that, last time i tried similat it sort of worked but lagged the frames like crazy

[flint nymph]

it probably lagged a lot because you were trying to get all scene components which is kind of crazy

but you can filter the class

to specifically what you want

[tight venture]

@mossy barn You could record the background as a media file and have it just play it in the background, instead of having it generated dynamically.

[flint nymph]

(I haven't been really reading in so I don't know your exact intentions)

[tight venture]

Keep in mind that GetActorsByClass is expensive, or so I've heard

[latent arch]

@flint nymph yeah thats what i thought initially - i got all actors and then got the ones with the component i wanted but was similar

@flint nymph mind if i send you a PM?

[flint nymph]

sure

[mossy barn]

@tight venture I was thinking that as a solution just could have been a lot easier to add stuff to the background

[tight venture]

@mossy barn If you could upload a short video of your problem, it would probably make it a lot easier to diagnose

You can try using Gyazo if the video is too big to upload

[mossy barn]

As you can see the camera switches to a player camera only once for like 5 seconds then back to the loop and it doesn't happen again and everything is fine but I still dont want that 5 seconds

Also like you saw a charcter spawns even tho I dont have a player start...

[tight venture]

I am willing to bet that it's switching to your character's field of view due to auto activation. Like I said, your problem is that a character is getting spawned in the first place. Focus on that

You know where your character is getting spawned? Where in your blueprint? Level Blueprint maybe?

[mossy barn]

@tight venture So i made a game mode where no character spawns and now instead of it switching to the characters view it switches to another random locations view

[lusty escarp]

Hi, I'm back again with another spline question. How would I create a script that would add a new spline point to the track every 'x' amount of units? Let's say the player creates a Conveyor Belt between A and B. I then want the system to create points between these two default points for the items to lerp between.

[carmine thorn]

@astral fiber You know.. There is also the "toFloat" conversion node. It does not pop up automatically for some reason though but it does exist. You just have to drag the wire out and type it in.

[tight venture]

@mossy barn I am sorry, you've reached the end of my knowledge about this kind of stuff. I've never used a Level Sequence before, so I wouldn't know if it has anything to do with that or not. All I know is that it sounds like the playing view is getting switched due to something having auto activation ticked

[mossy barn]

I tried that too

[tight schooner]

@lusty escarp that's a tough one. I've made scripts that generate splines from scratch but I don't know much about adding and redistributing points on an existing spline. In a functional sense, spline points define form but what you're looking to do is mainly cosmetic? Maybe change how meshes are distributed over the spline rather than alter the spline itself?

[simple lantern]

Hi i'm having a little confusion about BP classes, I understand the basic hierarchy of Object>Actor>Pawn>Character, but when I create, let's say, an actor BP and name it something like "MyCoolBP", MyCoolBP becomes it's own class? As in when i'm referencing a class in code, that comes up as it's own thing

[tight schooner]

If the spline is curvy, it might be better to get a measure of the spline's total "distance" to determine how many spline meshes to map over it

[chilly linden]

can someone help me with a spline road, its getting screwed up when I try and create curves

[lusty escarp]

@tight schooner yeah, i'm still trying to recreate the Satisfactory ConveyorBelt System (simplified) I virtually was wanting to test to see if i could lerp the item between points and check to see if the next point was occupied, if it was, then it can't move forward

[carmine thorn]

@chilly linden Yeah I can help you. Bit hard to explain all of it in text form though

[tight venture]

@mossy barn maybe try posting your question in #level-design ?

or #cinematics ? <-- never used that channel before, not really sure what it's about

[jaunty acorn]

is there a smarter way of accessing items instead of making over 1000 BPs for each piece of armor / weapon?

[mossy barn]

@tight venture Will give it a try. Also if it helps in finding the solution, I've notcied as soon as I start the game another camera actor spawns (Where I get cut too) and when I end the play its gone. So somewhere this camera is being spawned...

[tight venture]

Question of advice:

For anyone not around a few hours ago, I am making a game where my level has different types of flooring. Only have hardwood and carpet atm. And the level itself takes damage when poop gets on the floor. So what I've done is made an abstract BP_Floor class with a box collider peeking out over the top of it, and subclassed it for whatever floor type it is, which dictates how much damage is done when poop lands on it (carpet does more damage than hardwood, etc).

My question is, which would be the better approach... the way I just described, or by using the mesh editor and creating something like this out of a single mesh:

and then just using separate colliders for the different areas?

As of now, I have it set up like this, to emulate the same thing. One hardwood section and two carpet sections of floor

[tight schooner]

@lusty escarp though I'm not facing the same challenges as you with splines, my instinct says not to over-use spline points. Instead of using Get Transform at Spline Point, you can use Get Transform at Distance Along Spline so you can do things at consistent distances (like check for items or move things along at a constant speed) apart from where the spline points are. So in that way the spline points can just define form rather than also function as distance markers.

I suspect using them as distance markers will add some complication down the line...

[tight venture]

@jaunty acorn I can almost definitely say yes, there is a better way than that. You'll have to clarify what exactly you're trying to do though, in order to get an answer

[jaunty acorn]

@tight venture i'm just creating Blueprints to make armor pieces / swords / potions / everything equipaable and can store them

i have tons of pieces of armor and weapons

[flint nymph]

@jaunty acorn are you utilizing parent classes?

[jaunty acorn]

yes

[tight venture]

You really thousands of different pieces of armor/equipment? Well... if they behave differently, then yes, you'll need a blueprint class for each one.

*really have...

[jaunty acorn]

not thousands haha just like

1k

but still a lot yeah i know

it's pretty much the entire synty pack

[tight venture]

But like Joe said, you may be able to simplify a lot of it if you aren't using parent classes

[jaunty acorn]

and it's a lot because male / female parts are separate

for armor

[tight venture]

okay, so you may want to separate the functionality and the cosmetics

[carmine thorn]

@jaunty acorn appropriate time to use a data table and an armor class that gets variables from the data table

[tight venture]

If a lot of pieces of armor behave the same, but just look different, make a parent class for the behavior, and subclass the cosmetics

[jaunty acorn]

@tight venture they act the same, look different, and give different stats is all

[lusty escarp]

@tight schooner Would you mind if i messaged you privately ? don't want to lose the messages you send

[jaunty acorn]

@carmine thorn i will look into that, im new to UE4 so im gonna look at tutorials about that now

[tight venture]

@dim kiln you'll have to clarify exactly what the problem is.

[carmine thorn]

@jaunty acorn You can set a model reference, stats, health level, cost, anything you need really

[jaunty acorn]

@carmine thorn thanks! i will look into this ^^

[carmine thorn]

No prob

[flint nymph]

as is typical wadstein has a video on it lol https://youtu.be/nt1hlJO-DPo

[tight venture]

Anyone have any insight on my flooring? Which approach (if either of the ones I listed) is best?

[jaunty acorn]

https://gyazo.com/8d707cd94b9f5aa6c8d3889db2bbbbdd

[dim kiln]

@tight venture im not sure what the problem is 😦 My water shader looks brown unless any variable is updated then it springs to life

[tight venture]

@dim kiln you may want to post that in #graphics

[dim kiln]

ok thanks

[carmine thorn]

@tight venture You could save a lot of grief by looking into physics materials and collisions events generated by your 'poop' actors. As you can apply a different physical material to each floor material the process can be automated

[chilly linden]

@carmine thorn the spline kinda works its just when i try and make curves it fucks out a bit

[carmine thorn]

@chilly linden Mind getting to a call? I can help you better if I see what is actually happening

[chilly linden]

sure

[thick pewter]

I'm using timelines to move a platform but, it seems like I can only move it along the X axis, how can I get it to use Y?

[trim matrix]

Any DCS user here?

Dynamic combat system

@thick pewter share your code

[simple lantern]

Is there a way to print the frame count? GetFrameCount returns an int64 which i can't figure out how to convert into a string

[thick pewter]

So how would I change this to operate along the Y axis instead of the X?

[tight schooner]

@lusty escarp sure go ahead

[lusty escarp]

@thick pewter You can split the Vector3 into separate Floats

Disconnect the Vector3 at SetLocation

Right click on the Newlocation and select Split

You can then split the Select Vector3 aswell to give you the X

[thick pewter]

@lusty escarp Ty! However, one is a float and the other is a vector

[hot mural]

Can anyone help me im trying to make it so a image show's up for the my weapons but its not tracking and im not sure what to do.

[lusty escarp]

@thick pewter

[thick pewter]

@lusty escarp oh duh rofl thank you!

[lusty escarp]

@hot mural If you are wanting the 'AK47 [F]' to follow the camera viewport location, then you can set the widget to be in 'Screen Space' you can then get the location of the player character followcamera and set the rotation of the widget to follow it

[hot mural]

alright got it thank you

[quasi valley]

Anyone know how to pass parameters to widgets inside of actors?

[flint nymph]

depending on what you’re doing you could set an event in the actor with the given parameters as inputs that set the values in the widget

that you can then call from other actors with either a cast or an interface message

but don’t know exactly what you’re trying to do

[quasi valley]

Wait, Ill check that out

[weak spoke]

Hello, does anybody has experience with reading the luminance values of each pixel. I am trying to build a luminance camera sensor.. so far I was able to read the values of one pixel by capturing the scene and transfering the image to a rendertarget. then I was able to read the values with the functionalities in the blueprint editor. but I'm stuck since I'm not sure if this is an accurate measurement for the luminance value of the pixel. furthermore I'm not sure how to read all values from the whole image.
I am aiming to read the luminance values and want to create a pseudocolor display. For any help I would be grateful.

[snow halo]

Hey all when you have multiple character blueprints with player controllers. how is the index determined for each? Is it guaranteed the same every time?

i'm having an issue where i wanted to grab a PC index to set view target and now that i added another char to the level the index changed

[quasi valley]

depending on what you’re doing you could set an event in the actor with the given parameters as inputs that set the values in the widget
@flint nymph I can't seem to reach the widget from the "owning" actor

[snow halo]

Or is it a race condition?

[flint nymph]

Where are you creating the widget from

[quasi valley]

I'm just trying to show a float variable from the actor as a progress bar inside the widgets interface

[flint nymph]

you've already created a binding in the progress bar correct

[quasi valley]

Well kinda, it's an empty function. I thought I can access something like WidgetOwner or Parent from there

[flint nymph]

right click of the output in the empty function

create a variable named health or somesuch

this'll bind the progress of the bar to that variable ofc in the widget

you can then set that variable in your character's blueprint

[clever cedar]

Is is possible to change blueprint variables while the game is running? I have my blueprint selected in the filter but everything is grayed out.

[flint nymph]

expose it by clicking open the eye and then you can edit it at runtime in PIE

by clicking the actor in the editor

it'll list exposed variables in the details panel

[clever cedar]

Oh I see, the details panel in the main editor, not the details of the blueprint. 👍

[simple lantern]

Hey, I have the Editor Scripting Plugin installed but the Spawn Actor From Class node isn't appearing, what could be the problem?

[tight venture]

@simple lantern I dunno about the Editor Scripting Plugin, but I do know that certain nodes cannot be used in certain places (usually either inside or outside of an Event Graph is the deciding factor). Try adding the SpawnActorFromClass node in an event graph and see if it comes up there?

[simple lantern]

@simple lantern Thanks for the reply, yeah that's what I tried, and without context sensitive. Didn't work unfortunately

Not super important in the end though, turned out I needed a different node anyway but still strange that it's not showing up

[tight venture]

Hmmm... afraid that's all I know then 😦

[trail kestrel]

hi, so i have a actor which is just a sphere scaled down to .1, but when i spawn it with spawn actor, it's the size of a regular sphere even though it's the right size if i pull it out of the content browser

[flint nymph]

it's setting the transform to 1 on spawn

and since the sphere is the root of your actor

it's following that transform

parent the sphere to a scene component

[gritty elm]

@thick pewter first thing you need to open the timeline by double click and then you need to add y-axis track and you need to modify y-axis value keys in timeline, then you can do something like that

@trail kestrel you need to set scale 3d after immediately spawn the actor like this:

@snow halo the best way to get all actors from your character class by changing index from here.

[trail kestrel]

is there any reason to use a "scene component" over a "set actor scale" or vice versa, or are they pretty much the same thing

[flint nymph]

adding in a scene component just changes the root of your actor and enables you to freely scale the sphere without worrying about spawn transform

set actor scale 3d corrects the spawn transform

[gritty elm]

@simple lantern yes you can imagine that MyCoolBP is an actor (it is a just a kind of name) that represent the base actor class, so you are creating copy of actor class by just duplicating or renaming actors. so the class mean main class which is actor, and actor name is MyCoolBP which inherit from actor class, so it mean you are creating different actors from same class (which is actor base class)

[simple lantern]

@gritty elm Helpful, thanks!

[gusty shuttle]

My Branch at the far right keeps giving me a error on trace hit. The actor hit ref is saying nothings being read. How do I get around this error?

[gritty elm]

@jaunty acorn you can create a base actor and then you can create all child from that class as many you want, in that way you get same functionality from your parent class, you no need to change or add anything again and again, because you've already done all stuff in base class

[gusty shuttle]

As in, if I trace hit a random wall without the trace channel im looking for, it gives me the actor error

[timid rune]

I was editing a material in the editor and when I got out my viewport looked like this. Does anyone know how to fix it?

[gritty elm]

@gusty shuttle did you print string hit actor to debug? are you sure that your hit actor collision is set to block all? and did you turn on line trace debug line to check if trace is hitting correctly?

@timid rune restart the project

[gusty shuttle]

It was working just dandy and I did do a print string and if I hit anything without the specific trace channel it would say None. If I hit the actor with the proper trace channel, no error. @gritty elm

[timid rune]

It didn't help

[gusty shuttle]

For some reason it does not like trace hitting any object that does not have the trace channel. I don't care that it hits other stuff without the proper trace channel. I just need to fire off events IF it hits the actor with the tag

[inner ginkgo]

@gusty shuttle You need to check if the trace hit anything valid. The hit actor will be null when it doesn't and that will cause an error in your second branch there.

[trail kestrel]

@flint nymph Thanks

[gusty shuttle]

Aye, I thought about running a IsValid?. I'll give that a crack @inner ginkgo

[gritty elm]

@timid rune didn't understand issue correctly, you can try to reset the layout

[timid rune]

I don't see that option

[inner ginkgo]

If you go to Load Layout, there should be a Default Layout option. I think that replaces the reset option.

[timid rune]

I clicked it and its still the same

[inner ginkgo]

From the view it looks like you are missing lighting.

Does your scene still contain a light option?

err light object.

[timid rune]

No but its a 2d game.

It looks like this when i press unlit.

[inner ginkgo]

What did you change on your material? You may have been using an unlit material that was changed to lit?

[timid rune]

I only changed one, not all of them.

I just added color to the mterial that I changed

Material*

[inner ginkgo]

Also, make sure you are looking at the right side of your view. You might be looking at the back.

[timid rune]

Nope.

[inner ginkgo]

Does it still look dark if you run your game?

[timid rune]

Yes

[inner ginkgo]

Not sure then. I would double check that material and make sure it is set to unlit and that something is in the emissive channel.

[quasi valley]

@flint nymph That worked, thank you 🙂

[flint nymph]

great! 👍

[timid rune]

@inner ginkgo I started up a new 2d game and its exactly the same.

[inner ginkgo]

If starting a new project doesn't fix it, then you may have modified some engine content.

That would require fixing the engine content or reinstalling that version.

[timid rune]

I opened a 3d game and its fine.

[inner ginkgo]

3D games use lit lighting.

If you have a directional light to your project, do things become visible?

[timid rune]

No

I'm going to try to reinstall unreal

[golden kite]

uhm, this doesnt seem right

[inner ginkgo]

Use a break point after the multiply. Some watches continue to get update when out of scope, while others don't. So you can't run trust a set of watches out of scope.

[golden kite]

wuth

the result itself is completely zero

[inner ginkgo]

And if it's out of scope that's accurate.

[golden kite]

what does that even mean

[inner ginkgo]

It means the multiply isn't being executed constantly for your watch value. It only shows the last result. If it hasn't been executed yet, it will show 0 as the default. Member variables like speed will exist in all scopes, so the watch can update accordingly. So doing the math manually might not always add up. You need a break point right after the multiply to see the correct values at the time of the multiply.

[golden kite]

yg

uh

it IS always executing

I added a print string node

and it does print it

[lusty escarp]

What are the number it is printing out?

[golden kite]

0

all 0

[inner ginkgo]

Put a break point on the print string. And see what the watches report when execution stops there.

[lusty escarp]

Best thing to do is to work backwards from here, PrintString The CurrentSpeed Float and see if you get a number from here

[golden kite]

it does print CurrentSpeed

and forward vector correctly

[lusty escarp]

Do You get numbers or 0s?

[west tulip]

Hello i am facing a small dumb issue....where i have setup multiple widgets in the level blueprint to spawn on click on different locations, but when i go to new location and click on tht new area to spawn new widget the old one appears, not the new one

[golden kite]

when Im printing currentspeed and forward vector, Im not getting any 0s

[lusty escarp]

okay good

[golden kite]

it shows what it needs to show

but when I put them through multiply and try to print it, it gives me all 0

[lusty escarp]

@west tulip If you put a screenshot of the Blueprint, Then it's easier to decipher

[west tulip]

@lusty escarp

there are 21 differnt like these and each has its own trigger function and widget spwan

[quaint falcon]

i have a big collision sphere on my character... i want to damage all enamies that are in it when i press a button how to check if is in collision volume?

[lusty escarp]

@west tulip The gate will only fire when the MouseButton is held down **AND **the Actor has overlapped with the Pasta

[inner ginkgo]

@quaint falcon Using your big sphere, you'd have to keep track of which actors overlap as your move around. If you don't need the big sphere for something else, I'd recommend using SphereOverlapActors, instead.

[west tulip]

@lusty escarp the thing is its spawning corectly, but when i go to new location to spawn new widget, it still shows the old one

[lusty escarp]

@quaint falcon You could use a 'GetAllActorsOfClass' Node which will give an array of actors currently inside of the Sphere. You can then use a ForEachLoop and attack all the actors within

[quaint falcon]

@inner ginkgo wow thhx a lot im gonna screenshot the thing im using it for sec so you get a better idea of what i should do

[lusty escarp]

@west tulip I don't fully understand what you are trying to achieve here. You will always add Pasta1 Widget to the screen

[inner ginkgo]

@west tulip You never close your gate, but that might not be a problem if input is turning off correctly.

[west tulip]

So this is my scene

these are alll the nodes

all of them have trigers as u can see

[inner ginkgo]

Yeah, you need to close the gate in that case. All of those Left Mouse buttons are going to fire. And any with open gates are going get everything executed.

[west tulip]

okay how do i close the gates ?

[quaint falcon]

i have this fire area effect.. i want all the enemies inside it to be damaged... i also have a air area effect and i want all the enemies to get knockback... so i want to get all the enemies that are in a specific sphere to be affected

SphereOverlapActors sounds great is it the best way to do it @inner ginkgo

[inner ginkgo]

With what you have, you need a pin going to the gate close pin from your end overlap events.

[west tulip]

@inner ginkgo I will try that thanks a lot!!!

[inner ginkgo]

@quaint falcon The SphereOverlapActors node is still good for this. It will give you a list of everything in a given sphere. You will still need to go through the list and do stuff, but it will give you a good starting point.

[quaint falcon]

@inner ginkgo thx! have a great day

[lusty escarp]

@quaint falcon I presume you have an input where the player presses and the fire/wind effect triggers?

[west tulip]

@inner ginkgo OMG dude it worked, thnks a ton!! Cheers!

[quaint falcon]

@lusty escarp yep

[lusty escarp]

@quaint falcon You could use a MultiSphereTrace to get all Hit actors within the radius of the sphere and then call an damage function

[quaint falcon]

and whats the difference between SphereOverlapActors?

i didnt know both before

[lusty escarp]

Actually

yeah

use @inner ginkgo's Idea

[inner ginkgo]

SphereOverlapActors is for when you just want 1 sphere's worth of results. Sphere Trace is like a line trace, but with a sphere moving through the level.

[lusty escarp]

^

[quaint falcon]

aight

thx tho

[tight venture]

Anyone know if it's possible to have a single plane with a piece missing? Like a smaller square cut from it to make an L shape? Or if it's possible to "weld" two planes together to make a single L-shaped plane?

It's important that it be treated like a single plane. I don't want it to be a group of 2 planes.

At least treated as a single component, anyway. It's okay if it's actually 2 components, as long as the engine treats them as one. (Or at least I can apply a single material to it and it covers it as if it's one component)

[inner ginkgo]

Two components parented to each other will mostly be treated as 1, but the material thing won't work out.

What's the goal with the piece? Does collision matter? Because a single plane with a mask material could make it look like a hole is missing.

[tame stream]

the text is coming out as "infantry: "

anyone know why the full formatted text isnt showing

[inner ginkgo]

You are using format text incorrectly. The way you have it setup looks like Append, which is probably what you wanted to use.

[tame stream]

ooh thank you

[tight venture]

@inner ginkgo I have described my problem in more detail in #level-design. Not much activity in that channel, though.

Just check out that channel, you'll see what I'm going for

[inner ginkgo]

@tight venture I see it. Since the floor isn't moving, you can keep your current design (assuming it is working for you) and look into world aligned textures to get the hardwood flooring the line up.

[tight venture]

Everything does line up. It's the two carpet sections, where they meet, that is a problem. Gonna have to figure out a way for the textures to line up between them.

I'll end up using a different texture for the carpet, cuz that one sux, but the concept still applies

Or... figure out a way to make an L-shaped plane 🙂

[inner ginkgo]

Sorry, got the wood and carpet mixed up. The solution is still the same. World Align Textures will get them to line up no matter how you configure them.

[tight venture]

oh

okay

thank you

I've never heard of that concept

Is that a material node?

ah. yes it is

[inner ginkgo]

It uses a material node, yes.

There's a few short-ish tutorials on Google if you search it. I'd recommend one of them so you know which pins you need to hook up.

[tight venture]

Yeah haha, I'm looking for that now.

Whoa, nelly!

[inner ginkgo]

I think you only need the first two pins for most cases.

[tight venture]

Ooooohhhh coool, yeah that's exactly what I need

https://www.youtube.com/watch?v=BMbV4I4acaQ

Didn't know that was even possible

[inner ginkgo]

It's pretty useful. But only really works for static stuff.

Unless you want a stylized look for your moving things, that is.

[tight venture]

No, that's exactly what I needed. Thank you, @inner ginkgo.

Victory!

[inner ginkgo]

Yay

[tight venture]

@inner ginkgo quick question, about materials, if you are knowledgeable about them...

Should you never use the master material for anything? In other words, should you always use an instance pretty much everywhere? I can't see a good reason why you wouldn't want to use an instance, even if you think you'll never change the material or use it in any other way

[inner ginkgo]

There's no technical reason to avoid using the master. It's mostly a design best practice to use the instances. And since it's hardly any trouble to create and assign an instance, I don't see a reason not to follow it.

[tight venture]

cool, thx. just wanted a second opinion there

[tight venture]

Weird. My health bar stops working if I rename the output pin from "ReturnValue". Anyone know why?

I renamed it "Health Percentage" and it seems to never even get called anymore

Name it back to "ReturnValue" and it's all good, works fine.

[teal ruin]

4.25 no longer has "spawn actor from class"??

[tight venture]

I dunno, I'm stuck using 4.24. I can't see why it wouldn't have that node, though

[teal ruin]

I've turned off context sensitive and it's not showing up still

[inner ginkgo]

4.25 has spawn actor. Where are you trying to use it?

[tight venture]

@teal ruin afaik, SpawnActorFromClass is unavailable outside EventGraphs

[teal ruin]

ah, so it's because of the construction script being where I am

drat 😕

[inner ginkgo]

Can't be used in construction. But it can be used in functions and events.

[tight venture]

errrr.... what he said ----^

[inner ginkgo]

It also has to be an object type with a world context. So you can't use it in something that is UObject only.

[teal ruin]

oki, so yeah it's just to spawn out the tiles. Just moving my construction script to event begin play will fix it 🙂

decided to stick with square boards for now with custom X and Y

Though that said... then I have to proc spawn the pieces, too >.> Hmmmmmmm maybe not a grand idea

back to the drawing board!

[inner ginkgo]

@tight venture For your health issue, make sure you compile the class. And then you might need to go where it is called and use Refresh Nodes.

[wind atlas]

hello, I accidentally added 2171 material slots to a mesh

: D

is there any automatic way to delete them?

[inner ginkgo]

Accidentally?

[wind atlas]

I thought I was adding material to a static mesh component in my construction script, but I was actually adding it to the static mesh, like the geometry asset in my conent folder

but it could have happened at an earlier date when i was doing something else, i basically just found out now by chance that it happened

i can delete and re-import it, but was curious if theres another way

!! i re-loaded the asset

all good

luckily it didnt save since it happened

[inner ginkgo]

Nice

[wind atlas]

whats the proper way to disable a screencapture2D component? if I want to stop it from using resources? If I disable visible and tick hidden in game, would that be enough?

[tribal axle]

I have a dot on a hud, and I want the position to follow something in the 3d space, how do I bind that?

[inner ginkgo]

ProjectWorldToScreen will give you a screen coordinate to work with.

[tribal axle]

Thanks’

!*

[dapper kiln]

So I can ride on my rocket launcher projectile and I want to fix it where I can't. It's cool but players can use it to get outside the level hahaha. I tried editing the "Can Step Up On" to No but it still happens. I want to be able to hit myself so I can't edit collisions can I?

[inner ginkgo]

@dapper kiln Hmm. Shouldn't riding the projectile trigger a hit event? Shouldn't you just have it explode in response?

[dapper kiln]

@inner ginkgo For some reason it doesn't trigger the hit event when I land on the projectile while it's moving. It's just like Fortnite. (Now I see how they did it hahahahaha 😉 ) I just can't figure out how to stop it

[inner ginkgo]

Check the collision on both and make sure Generates Hit Events is checked.

[dapper kiln]

Yea it's checked but it just doesn't generate hit events unless it stops the velocity of the projectile. When I land on it, the velocity doesn't change on the projectile so I guess it doesn't know I hit it or it hit me lol

[inner ginkgo]

Seems pretty odd.

Do you have 2+ collidable components on the rocket by any chance?

[dapper kiln]

I have a collision sphere and a mesh, The collision sphere has collision, the mesh has no collision.

[inner ginkgo]

Does the sphere cover the whole rocket? Or just the front?

[dapper kiln]

The sphere is in the center of the rocket mesh.

so it's inside of the rocket

https://i.gyazo.com/45e0ab917b07d7d2e2546dcb84607a78.png

[inner ginkgo]

Gotcha. Still seems odd that a hit event wouldn't be registered on the player or any of the rock components, though.

[dapper kiln]

it's set to bounce. I'm not sure if that does anything

So my projectile bounces around before exploding

[inner ginkgo]

That's just projectile movement behavior. Shouldn't affect collisions.

How do you get on the rocket? I think if it spawns with you already on it, the hits might not register.

[dapper kiln]

I just shoot the wall and when it bounces back, I jump on it. I also was just checking print strings and I believe that the Event hit IS hitting me but for some reason is failing to cast to Character. I plugged in a CastToCharacter to see if it would hit me and cast to character but it is failing. It only passes if it actually runs into me. If I jump on it it fails.

[inner ginkgo]

Show me that hit code.

[dapper kiln]

https://i.gyazo.com/afe40561c11215fa915fafafc298aef4.png

[inner ginkgo]

So you get the green hello when you jump on the rocket?

[dapper kiln]

Yes

[inner ginkgo]

If you pull the hit actor pin to the first print string, it should auto convert it to pull the display name.

Print that out when you jump on it. My guess is you have some attached actor near your feet.

And that's what is actually making contact.

[dapper kiln]

It's hitting its own self! It's printing laser projectile. So it is hitting itself like you said earlier. But how?

https://i.gyazo.com/d7e8a5f371576de7e548a8ac35832801.png

[inner ginkgo]

That is interesting.

Are you attaching the rocket? lol

[dapper kiln]

It's just a mesh thats a child of the sphere collision. I'm not sure either lol. It's not a big deal. I just thought I was missing something easy or simple.

I just spawn the projectile and it does it's thing

[inner ginkgo]

It should be easy and simple, which is why it s perplexing.

[dapper kiln]

It is a child of a base projectile, Let me look at the parent, maybe I missed something. But even then, the child should override the parent right?

[inner ginkgo]

Yeah, the child implementation takes priority. The parent is used if you don't override or if you call the parent function specifically.

I would try check the collision from the player's pawn. It isn't ideal, but if you can detect a rocket hit there, you can do some stuff.

[dapper kiln]

I guess I can just change the collision to overlap "Pawn" then do my own tiny trace to apply damage. That way it will go through players so they can't ride on it. But also generate a "Hit" with my trace, then I can apply damage and play FX/sound.

I'd just set it to only work on non player characters so It wouldn't explode on players, only enemies

[inner ginkgo]

Another approach is to have it detect when it leaves the level. And turn off all collision. That way your players can ride it, but not out of the level.

[dapper kiln]

Hahahaha Yea! I personally thought it was cool but other people thought it could be abused to cheat so I guess I'll fix it. 😦

[white crypt]

maybe putting some bounds around the level that would block the player could work as well

then even without the rocket you will have a system that wouldnt allow players to leave the area

[dapper kiln]

Yea those are both good ideas. Basically clipping off the level. Putting invisible ceilings, boundaries, etc. That's a good idea. I could even be mean like some games and put kill volumes so if someone cheats, they die.

@inner ginkgo @white crypt Thank you both. I enjoy chatting over these little pesky issues. It's fun to work on the little stuff sometimes.

[stoic vortex]

sorry to interrupt, this is super basic but I'm having a major brain fart and it's killing me that I can't think of it: you know those little dots you can add to blueprint connector lines to control where the lines go? what are they called?

[inner ginkgo]

Reroute nodes

[stoic vortex]

reroute nodes!! thank you!

[white crypt]

theres a shortcut for them as well. shift+left click if i remember correctly @stoic vortex

[stoic vortex]

thanks!

[white crypt]

when you click on the line that is

[inner ginkgo]

I just double click the line.

[white crypt]

oh right double click, no the shift one 😄

mb

shift+left just highlights the line

[harsh topaz]

hi

[hot mural]

Does anyone think they could hop in a call real quick im trying to setup this equip animation but when i try it its no longer equip but its playing the animation

[gilded jay]

So this is probably something super basic (im fairly new), and im being dumb, but im having an issue. Long story short. I created an inventory component(actor component). That component has 2 base variables in it. The number of slots (int) and a slot structure component ( structure array). When i try to access these variables in any other blue print I can see them, and they come up, howewever, when i try and access them from my user interface, they give me the "access none trying to read property" from that component, and I'm not sure why.

[trim matrix]

have u set the inventory component?
Go to your other blueprint and check where you set the component

access none means the value is empty, that's why it return 0

[lapis ermine]

Has anyone gotten the editor breaking blueprint error? Assertion failed: false [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Engine/Private/EdGraph/EdGraphPin.cpp] [Line: 1875] Pin named StructOut was serialized while trashed - requesting pin named StructRef owned by node K2Node_SetFieldsInStruct_2

[grim lantern]

How do I pad (fill with zeros) a number? Examples 732 > 0732 or 23 > 0023

[surreal peak]

In the UI?

@grim lantern

There should be an option on the Int to Text node

Where you can set some min value

[grim lantern]

It is in the blueprint an int value and I want to convert it to a zero padded number

[tawny tinsel]

my add child uniform grid panel has no integer input help

[surreal peak]

@grim lantern That doesn't answer the question

Is that for displaying it in the UI?

[grim lantern]

No, It's a Widget BluePrint, I'm populating a textfield

[tawny tinsel]

https://docs.unrealengine.com/en-US/BlueprintAPI/Widget/AddChildtoUniformGrid/index.html

this node has no integers for me pls help

[white crypt]

your engine version is too old

i think this was added in 4.22

[tawny tinsel]

hah

thats exacly wich one im using

that is literly the version i am using

[white crypt]

then 4.23

[surreal peak]

@grim lantern ... which is UI? :D

[white crypt]

i suppose

[tawny tinsel]

well i guess ill just upgrade then pffff

thanks for the info

[white crypt]

you can still get these options

just not in one node

[surreal peak]

@grim lantern Set that to 4, then you have 0 padding

Turn off the Grouping maybe, cause that's grouping for thousands

[tawny tinsel]

i dont think i can

i tried

[white crypt]

https://prnt.sc/t0jhjy

you can

[tawny tinsel]

ill just upgrade to the newer one

oh.......

well thats too late im already uninstaling the version i got

[surreal peak]

Classic

[white crypt]

¯_(ツ)_/¯

[tawny tinsel]

i wish this node existed in my brains data base before i clicked uninstal ;-;

but i would have to upgrade eventualy

i hope they didnt change too much

[grim lantern]

@surreal peak Hey! That worked like a charm! Thanks a lot.

[tawny tinsel]

WAIT A MIUTE

IS UE4.25 LESS IN GIGABYTES THAN 4.22?

[surreal peak]

Not sure. Could be that you didn't take the same options when installing

Specially C++ Symbols take a lot of space

[tawny tinsel]

well i think i didnt take them thankfuly

[grim lantern]

Why is this snippet returning a value that is not 2020, it returns 14943

[tawny tinsel]

im not very sure it doesnt seem to be spesified wich year is it

you might have to make manual timers for year etc

[lilac matrix]

Small problem, I have exposed variables for a blueprint that i use to manage irradiated objects, only issue is that the changes made in the details panel don't show up in editor, only once the game has started, i tried looking around but i probably didn't use the right words to find the solution

[earnest tangle]

You can use the Construction Script to do changes which are also visible in the editor

[lilac matrix]

Many thanks

I often forget that tab exists

[grim lantern]

If I have a text TEST_LOG_Genesis what's the good way to slice that string so that only GENESIS stays? In Python it would be just TEST_LOG_Genesis[9:] with the slice notation.

Guess just keeping Substrings length really high:

[earnest tangle]

You probably could just check string length and subtract

for the length I mean, so it wouldn't have to be so high

[white crypt]

if you only had one underline then you could use "split"

im sure there should be other ways too

or try "chop" @grim lantern

[earnest tangle]

I'd imagine there should be a way to use regex, or maybe that would require using C++

(and potentially slower than chopping the string at known index but in any case)

[white crypt]

i think chop is exactly what he needs

[grim lantern]

Ah yes, that's more explicit than get substring. Thanks

We have a very strong naming convention, so we should be fine chopping

[white crypt]

i just learnt that chop exists myself, i simply right clicked on an empty place. went to utilities and exapanded string section

and just scrolled through it to look for some options 😄

[earnest tangle]

yeah trying out random words like "string" or such, or just digging through the cateogires is what I do often to look stuff up

[trim matrix]

@tawny tinsel My setup

try to add child to uniform grid instead of add child only

[earnest tangle]

it would be super convenient if it just gave you a list of everything that accepts a param, the categories are a bit of a pain to dig through sometimes

[tawny tinsel]

@trim matrix thanks ill try that one if the one im planning to try doesnt work

https://forums.unrealengine.com/filedata/fetch?id=1687330&d=1573791648

thsi is the one im gonna try

[trim matrix]

I dont know what u are trying to do with ur grid, it all depends on what functionality u want

mine is like this

sec taking screen shoot

@tawny tinsel

is that something u are trying to do?

[tawny tinsel]

yes

but with 3 rows horizontaly

[trim matrix]

So if u can see from the code im sharing

I do a for loop

u define how many times it should loop.

Eg 10 times for 10 items, 20 times for 20 items for based on invetory size etc

[tawny tinsel]

i cant really work with loops

[trim matrix]

Can I see your illustration? maybe i can help you

[tawny tinsel]

im using a spawner component that createes a widget and its applied to every single character

[white crypt]

https://prnt.sc/t0keuq

thats how you can set up

better

[tawny tinsel]

for me it needs to be infinite

[white crypt]

current index is just the same as your array index

you just set how many rows and columns you want in the default tab

[tawny tinsel]

well ill see wich one works the best for me

thank you

[trim matrix]

U can always add more when u need

but yea, good luck

let me know if u are stuck

maybe i can help

[tawny tinsel]

nah i want it to be infinite forever

alrithy ill mesege here if i get stuck thanks guys

[white crypt]

i mean his option also works, but in my case i dont need any branches nor reseting variables back to 0

pick the one you want though 😄

[tawny tinsel]

👍

[trim matrix]

@white crypt what does ur node do? I might use that for my next inventory

index % length

[white crypt]

its the same logic as yours

[trim matrix]

I see

[white crypt]

just more compact

[trim matrix]

awesome man

[white crypt]

im bad with math, its something i caught up during my first years

so always kept using the same logic

[trim matrix]

oh I don't even finish my high school, thanks for the node gonna experiment with that

[earnest tangle]

index % length limits the result to length

it's the modulo operator

for example, 1 % 2 is 1, 2 % 2 is 0, 3 % 2 is 1, and so forth

[deep elbow]

subtracts y from x and returns the remainder, right <- this is incorrect, it's based on fractions and divide x by y and the remainder is the mod, not subtract

[white crypt]

at one point i knew how it calculated but forgot during these years

[trim matrix]

hi guys, how can I get a widget location

eg icon location within a widget

[white crypt]

https://prnt.sc/t0kmr9

this i suppose

[trim matrix]

problem is i have a grid panel and add it as child

so canvas slot will return 0,0 kinda like local space of that child widget

[trim matrix]

@white crypt Yo I find out what to use

[white crypt]

oh good job, never used the tick space geometry

[trim matrix]

same, i just find out online

[white crypt]

so learnt smth new today myself as well 😄

thanks for letting me know though, might come in handy at some point

[trim matrix]

I suppose, Im trying to show the desc of the item on top of the hovered widget

it can be a nice touch for any game

[white crypt]

thats cool, i remember making something similar with the display but found other methods on how to accomplish that. i think i used mouse location

it wasnt perfect but it worked, with your example it might have been better

[trim matrix]

what works, works 🙂

[blazing ridge]

hey you unreal gods, i have a question cause i didnt make it in school math.
i have the following setup (see pic)
on there you have 2 ewxamples of what i want to do.
Example 1 are the points with "1"
i am currently generating a line between the points A and B, now i want to generate a third point C to calculate a bezier curve for those points
i also already have the distance of the line, the half distance of the line, and the middle point.
what im trying to achieve is, take the half distance, and offset the green middlepoint to the relative left or right in 90 degrees.
so basically i want to rotate a vector, but i dont know how ot correctly do this.

the 2nd example with the points "2" is another situation, because the system/algorythm needs to work in püositive, negative and changing coordinates

i would greatly apprecaite any help

so basically i need to calculate this

[earnest tangle]

I think you'd need to use dot or cross product to find a vector which is perpendicular, if you normalize it, you can use it as a direction and just do mid_point + (perpendicular_dir * desired_length)

I'm not familiar with the necessary dot/cross math off the top of my head but if you google for "find perpendicular vector" or something like this it should give you something to work with

[blazing ridge]

@earnest tangle thanks for the response, ill give it a shot and let you know what i can come up with

[tawny tinsel]

HELP

the widget does not scroll

how do i fix

oh nvm i fixed it

it was my canvas set to invisble hit

[cinder dirge]

@blazing ridge Did you get it sorted? If not, are your vectors 2D or 3D?

[loud marsh]

Hi! Since when is unreal going for rotations in 90 degrees instead of -180 to 180?

[blazing ridge]

@cinder dirge no sadly not, but my heads starting to smoke 😄
im in a 2d system right now

i found a lot of stuff on the web but most is really hard to understand

[loud marsh]

I'm trying to rotate a relative rotation, but instead of going -180 to 180 as it used to, now it's going in -90 to 90 and then -90 to 90 again

[blazing ridge]

i know that i somehow have to solve the dot product to 0, but man i dont know how

[maiden wadi]

@blazing ridge What defines the yellow arc?

[blazing ridge]

the target is to calculate the yellow arc via the point B that im trying to find right now.
the arc is then calculated via bezier curve calc

@maiden wadi

like this

where the red circled dots are the still missing coordinates of point B

[latent arch]

hey all got any tips for getting the velocity of the players camera? I'm just getting 0,0,0 at the moment. I'm assuming because it doesn't have physics associated with it? is there a way i can get the velocity from its world location instead? or attach something to it that allows the measuring of its velocity? many thanks!

[maiden wadi]

@latent arch You could calculate it yourself on tick. Velocity is just units moved per second.

[latent arch]

you think thats the best way in this instance? ill give it a go thanks! will that give me an X,Y,Z value?

[undone wing]

I am trying to run my editor utility blueprint which should open a widget but it's not showing anything.

[latent arch]

@maiden wadi hey buddy do you mind just showing me what that should look like? tried a couple methods now but no dice XD

[maiden wadi]

Sure, just a sec.

[latent arch]

thanks a lot pal 🙂

[blazing ridge]

@cinder dirge @earnest tangle @maiden wadi
let me know if you have new advice for me 🙂

[maiden wadi]

@latent arch Try a macro like this. It'll just constantly update a vector variable that you can get. And the local vector in the macro saves you some clutter in your main variables list.

[latent arch]

ah sweet thanks a lot dude ill try that now 🙂

[latent arch]

os it still possible to split that up into x y z velocities?

[cinder dirge]

@blazing ridge I do 🙂 https://gyazo.com/07ff8929f040de97e213e67c342ba64c

[latent arch]

@maiden wadi thanks a lot buddy

[blazing ridge]

damn that looks good

[tawny tinsel]

@cinder dirge whats that looks fancy

[blazing ridge]

@cinder dirge how did you get it to work/whats the calc?

[latent arch]

@maiden wadi how can i split into X Y Z velocity? 🙂

[tawny tinsel]

SOMEBODY HELP ME FIGURE OUT SMTH COMPLEX

so i have a component that makes a list of all the characters in game

one problem is

the characters need to be spawned inside the level to work

[cinder dirge]

@blazing ridge It uses a geometry hack where you swap the vector components and invert one to rotate 90 degrees. Only practical in 2D, but hopefully this does the trick for you

[tawny tinsel]

how can i make it so that they dont need to be spawned inside the level to show up?

[cinder dirge]

@tawny tinsel Something like this?

[tawny tinsel]

yea it doesnt really work

[cinder dirge]

How so?

[tawny tinsel]

maybe i misused it

im gonna try using it the other way around

[cinder dirge]

Do you mean you want to list characters before they spawn into the world?

[tawny tinsel]

it works

but it shows only 1 character

rip ;-;

[cinder dirge]

Huh...

That is weird

[tawny tinsel]

no i mean this list takes data from spawned characters and adds child to a grid box

the data is taken from character actor variables

[cinder dirge]

Ok sure

If that function was broken, it would be big news

How long is the array it returns to you?

[tawny tinsel]

6

wich is all the characters in game

but it only takes data from 1

wich makes sense in a way?

because i have 6 character actors in total

i used the advanced minimap tutorial to get the system base

[cinder dirge]

That sounds like an issue with how you're using the data maybe? Did you loop over the array?

[tawny tinsel]

https://www.youtube.com/watch?v=rsRIdE8Lfjw&t=858s

yes i added for each loop

but theres not early an index input so it fails i think becaue of that

i dont think theres a way to get the data from the actor component without spawning the actor in the level

[maiden wadi]

Not unless it's a default class variable.

[cinder dirge]

Oh I see this is before spawning

[tawny tinsel]

but i need a variable for every actor in the level

i cant use the default variables

what do you mean @maiden wadi

[maiden wadi]

Then spawn them, then load the widget. You can't get something that doesn't exist. So if they're not in the level, you can't get anything from them.

[cinder dirge]

Indeed if the actor isn't spawned then it doesn't exist, and you can't possibly get information from something that doesn't exist

Can you spawn them into space? Like out of the level bounds where you can't see them?

[tawny tinsel]

yup

its only posible to spawn then get the data

well i was thinking ill check wich level they are on if they are on the list level then i will hide the mesh visibility so they dont take up memory

i think thats gonna work right?

and be fairly optimized

when ill have 999999+ in my game one day?

as long as they wont have any event ticks

and im not planning to give them any so far

unleash animation blueprints count as that

then ill be in a bit of trouble right

[cinder dirge]

What is it you're trying to do with these characters? Might it make sense to store whatever information it is that you need for them elsewhere, outside the character class?

[tawny tinsel]

im trying to make a system similar to pokemon

but dynamic so i can keep adding characters

the character actors act as a place to store attacks healths names and data such as wich image to load in the widget

[maiden wadi]

That's a lot of actors. Even large open world games like ARK only has up to 20,000 ai on the map and most of them are dormant besides max a couple thousand at a time.

[tawny tinsel]

well i exadurated a bit lol so many original characters cant exist at the same time without looking like clones

[cinder dirge]

And every character will have a unique BP class?

[tawny tinsel]

yes

but it will be child of character class

[cinder dirge]

Often in UE4 such a system is structured using a DataTable to store the character information

[tawny tinsel]

so far if i want a new character i just copy and paste the first one and modify it a bit

yea i tried data tables

that was my original concept

but i had some trouble with its limitations

i kinda see a way how could i redo it but nah i dont think its gonna work very well

making a pokemon system is hard when there is 0 tutorials on it ya know lol

[cinder dirge]

It sounds to me like that may be a more practical approach. What were the limitations that stopped you?

[tawny tinsel]

that i counlt change the data table variables

in run time

so ugh yea thats a big problem when im planing to have level up systems and etc

and upgrades

where the health will constantly be going from 100 to 1000 as you level up

i tried using data tables just to store widget data but that didnt work well either

[cinder dirge]

Can you calculate the health from the table and the level then?

[tawny tinsel]

so ill just use blueprints as my data tables

what do you mean

[cinder dirge]

Well if initial health is 100 and you gain 10% per level as an example, then you don't need to store the health at any given level really, you can just calculate it

You have a save system I presume? Does that save the character data?

[tawny tinsel]

i didnt do the save system yet im still working out the basics of menus etc but ill have a simple save system that saves your health variable and sets it

wait how is that gonna work when i have 100000+ characters

ill have to make a save game variable for everyone of htem

oh no

my plan fails flat again

why dont i think about the details

[earnest tangle]

Have you considered just making it work with.. I dunno, 5 pokemon first?

[cinder dirge]

You would save 100000 character 'instances'. All the same type of data, just many instances in an array

[earnest tangle]

Like all the basic features with just 5

[cinder dirge]

That is a good suggestion

[earnest tangle]

You should be able to figure out the issues then much more easily

[tawny tinsel]

well yes so far i have only 6 pokemons but i want to expand the game in the future and constantly update it with new cool charcters etc

[earnest tangle]

Yeah so I wouldn't worry about 100 000 for time being

[tawny tinsel]

the array stuff should work yes

[earnest tangle]

Just get it working with the 6 and then you can build on that

[tawny tinsel]

alrithy thanks for the chat guys

it helped me think a bit better

i shall get back to work to make this system work like a charm

ill also would want to submit it to unreal marketplace

anybody know how to do that?

[cinder dirge]

Someone in #fab will

[tawny tinsel]

alrit thanks again

ill come back if i run into problems again

[cinder dirge]

Cool

@blazing ridge https://blueprintue.com/blueprint/l0cxvc3y/ Meant to send this before. Nodes to copy and paste

[tawny tinsel]

btw am i the only one who is using a cast node as a branch lol

[earnest tangle]

I mean it can make sense in some circumstances

[tawny tinsel]

well it makes perfect sense in this one

cuz my list node uses a different game mode so its imposible for this cast so succsed

help

tint doesnt work

not even image set works ;-;

i failed somewhere else please ignore this

ok i fixed it

how do i cast the aposite way now?

i went from actor to widget

how do i go from widget to the actor that casted the widgeT?

[latent arch]

@maiden wadi thankyou so much your camera velocity / location tracking works like a charm! finally a solution to me troubles haha! 🙂 very responsive / low performance hit. Can i ask, will i now be able to copy this to another macro for doing the same for actors that ive filtered?

[tawny tinsel]

how do i get this variable from each actor and set it as true

[maiden wadi]

@latent archYou mean to use this in multiple actors?

[latent arch]

well id like to get this information for actors of a type in my map

so i can then compare it relatively to the player later on

[maiden wadi]

Actors for the most part should have their own Velocity that you can use.

[latent arch]

ah ok

[maiden wadi]

It should pretty much be the same thing. Just calculates it based off of the actor's root component.

[latent arch]

ok sweet, so if i get my list of actors i want to use, then plug the result into the get world location part it should do the rest?

[maiden wadi]

Not sure I follow. You are wanting to get an actor's velocity?