blueprint

[maiden wadi]

At this point I'd purge it with fire and remake the function with a slightly different name.

[trim matrix]

yea sometimes unreal do be like that

[light token]

I want to make sure it's empty

But I guess it's always empty

[trim matrix]

yea lol

[light token]

Alright will do that

I remade the function but it gives me the same error 😦

[timber knoll]

Did you get rid of the clear?

[light token]

yes

[timber knoll]

• you said you are using it as a pure?

[light token]

I don't really know what a pure is. This is a function not a custom event.

[timber knoll]

The checkbox when you click on your function

[trim matrix]

did you check the box that says Pure

to make the function a pure function?

[timber knoll]

That should be set to false for something like this

[light token]

Ah now I see

no It's not a pure function

[timber knoll]

Ok good

[trim matrix]

So did you try to make a different function, and use a different struct?

[light token]

It's in the level blueprint

maybe thats the problem?

[trim matrix]

tbh prob lol xD

Idk why exactly that would be an issue but being in level bp always a problem

[light token]

Ok I'll try to make that variable a level blueprint wide one

[timber knoll]

Yeah it shouldn’t be the issue

[light token]

Oh 😦

[timber knoll]

But just avoid levelBP in general

[trim matrix]

yea lol

[light token]

Alright didn't know that.

[gentle urchin]

There's no property flag on the array that could cause this right?

[light token]

Nope

[maiden wadi]

What function line calls this function?

[timber knoll]

I would also just get rid of the local variable since it could be having initialisation issues

You can just use the quest array yoi have

Clear it and then do the same thing without set at the end

Makes it more readable as well

[light token]

I made a level blueprinnt wide variable

and it still gives the error

[trim matrix]

Just to be clear, you tried this?

[light token]

@maiden wadi

Not exactly that

will try that

[trim matrix]

do that please

and do this

put the function

to run

first thing on begin play

[gentle urchin]

Even if the array was empty tho, It shouldnt have issues with the loop should it?

I'd expect it to just instantly complete, not executing loop body once

[timber knoll]

It will skip body

[trim matrix]

yea

[timber knoll]

Like normal code behaviour

[gentle urchin]

So even if its empty, it shouldnt throw an error

[timber knoll]

Correct

[light token]

Gmm

yea know it's returning 0

[trim matrix]

ok good

so we know unreals not just being super drunk

[light token]

lol

[trim matrix]

now start layerinf bits of code back into the function

[timber knoll]

Wait a second

Are you sure you are not using a delay while looping through this array?

[light token]

yes not using dely

ay

[gentle urchin]

Just to have things clear, who is calling this function, and when is it called?

[timber knoll]

When is above

[gentle urchin]

Im seeing SaveGame ?

But what calls the SaveGame event

[timber knoll]

That shouldn’t really matter

[gentle urchin]

As long as its nothing crazy like construct or something, sure

[light token]

and Check Autosave is called every tick

[gentle urchin]

o.O

[timber knoll]

Okay first of all, always use a boolean or something before saving

You want to make sure your last save completed before starting a new one

[trim matrix]

have you tried this?

my names are way different, but i think you can see what i mean

[timber knoll]

I would even skip the local array

It serves no use in his case

[light token]

OK Ill try that @trim matrix

[gentle urchin]

I'd also remove the check autosave, and put it on a looping timer but thats not really important

[light token]

Ill write that one down

@deep phoenixa the Array Set method is working fine

[trim matrix]

ok and the codes running in the inteded spot right?

not on being play like i said todo before?

[gentle urchin]

Is it just one error, or do they keep coming for each autosave?

[light token]

yes

[trim matrix]

good then

[light token]

Ill let it run for 60 seconds

[gentle urchin]

or reduce autosave time to like 5 seconds 😄

[timber knoll]

I would check this: cast to your player and print string in for loop body (quests array)

[gentle urchin]

if it only happens once, chances are that this is called pre dependency initializion

[light token]

@gentle urchin it happens every time

[gentle urchin]

I'd say that's good, in this case 😛

[light token]

@timber knoll Quest array or Quests Structure?

[timber knoll]

Ignore the local array

[light token]

ALright

Ill add empty struct maybe that works

Yeah an empty struct is working

wtf

so it must be with the thing coming out of the for loop

[trim matrix]

yep

[hushed hinge]

is there a way for me to make a button look like its being pressed from blueprint?

I am triggering an ability from blueprint that can either be done by a clicking the button or by pressing the hotkey and i want it to look pressed either way

[light token]

its the progress thing

[timber knoll]

yeah before you do that

[hushed hinge]

i was thinking about potentially setting the style when its pressed

but not sure if that would work

[timber knoll]

do a clear on your quest array, and just add a few empty ones

so you have your functionality in place

and just need to fix the struct that you add

[light token]

Yeah

The problem is with the progress integer

When I add that it starts to bug

[trim matrix]

lol is that what the error means

[timber knoll]

do all of them have the progress int?

[light token]

Hmm let me check

it's on the parent

[trim matrix]

the problem would be then an invalid reference in the array prob

[light token]

I might not have set it on the child class

[gentle urchin]

You'd collapse the pressed logic into a function (unless using butotn), and call that from the keypress

[trim matrix]

do that

[timber knoll]

it should be initialised if it's in the child no problem

[hushed hinge]

the issue is more so that i want the button press "styling" to take effect, not that I want to trigget the code of the button being pressed

[timber knoll]

since the child is constructed from parent before anything from child gets executed

[light token]

yeah

[gentle urchin]

Surely that's what my explanation intended to point at aswell. Updating the widgets styling

[light token]

I can't set progress on construct it will break

my gameflow

[timber knoll]

no you shouldn't

[light token]

but if it's already initialized by the parent I shouldnt need to do that

[timber knoll]

if progress is a variable in parent

it will exist in child as well without an issue

[light token]

yes

oke

now why is this a problem

[timber knoll]

but try what morgana said

[hushed hinge]

i thought the styling was automatic, is it not?

[trim matrix]

yea try that

if you see a false print

[gentle urchin]

If it's a button, then yes it is

[trim matrix]

its just invalid index in the array

[light token]

Alright sorry missed your message

will try that right away

[hushed hinge]

this is why i cant press it dynamically though, i dont see a function for changing the current style

[trim matrix]

400% thats it

[timber knoll]

yeah probably a quest that references to nothing

long live C++

[trim matrix]

sometimes those error msgs are misleading

[gentle urchin]

Personally i ended with creating a custom button instead, so i could control this better. But you could just toggle its style in the same manner that the default button does it

[timber knoll]

haha it's alright in blueprints

[hushed hinge]

i guess id need to go into CPP as I dont think those functions are exposed in blueprint

[light token]

it's false

[gentle urchin]

For making a custom button?

[hushed hinge]

for toggling the style

[timber knoll]

so that means you have incorrect data in your quests array (from your player)

[trim matrix]

yea

[light token]

ahh

damn

[trim matrix]

Bruh i hate those error msgs, i immeditly thought it was this but then got distracted by everything else going on

[timber knoll]

so basically you were creating structs from data that no longer exists

[gentle urchin]

I would think replacing the normal style of the button temporarily would solve it

[hushed hinge]

hmmmm yes

that might work

[light token]

AHhh I think I get it

I delete the quest item after it's added

[gentle urchin]

Doesnt look super nice in code tho , i'll agree to that 😛

[trim matrix]

Barry, its best practice to always check if a reference is valid before using its data

do that from now on lol

[hushed hinge]

You only YOLO once

[light token]

I will, thanks a lot!

[gentle urchin]

Doing custom button is quite straight forward aswell tho if you'd wanna give that a try

[light token]

Ill die into this right away. Thanks for your help I hope I can solve it now.

[hushed hinge]

Likely Ill end up doing something like this, just playing and prototyping for now

[hushed hinge]

thanks

[light token]

Found it

I forgot to connect a node

[timber knoll]

happens 😅

[light token]

wtf, so much thanks guys I was banging my head against my desk

[timber knoll]

just keep that valid check in there

always a good idea when saving, to make sure you don't corrupt data

[light token]

Will do

It's even saving well right now

I've been busy with this problem for 4 hours now

time to take a break xD

Thanks again, can't thank you enough.

[hushed hinge]

is it bad to store the game mode in a controller rather than fetching and casting it every time you need it?

[trim matrix]

no thats fine

[urban aspen]

Hey. I have an issue that is bothering me, maybe you can help me 🙂 I created an actor and an AnimationBlueprint for him. The AnimationBlueprint contains a state machine for an idle animation. The character contains various movement logic and flags his variable "IsMoving" to true when he is moving. The animationblueprint checks this variable and switches between moving and idle animation when this variable is changed. Now I'm getting into behaviour trees and let this charactor roam to random locations. Im using the Task "MoveTo" but then the character of course wont start the movement animation because the variable isnt touched. I now created 2 tasks as a workaround that are casting the character and setting the variable to true. So Im using 1. task start moving animation. 2. task get random location 3. move to 4. end moving animation. It is working but I have a feeling that there is a better way to control this, but I just dont know it^^

[azure smelt]

Quick question, Are there inherit problems with copy and pasting blueprint nodes when taking them from a project?

[urban aspen]

Thats so obvious..... I'm a bit ashamed that I didn't come up with it myself.... Thank you 🙂

[sonic pine]

Hiho i have a very specific question about character stats.
My Character Stats are still working in the CharacterStats_Widget but there are some bugs.
For example my character will start with a Max Health value and if i open the Widget the new Max health will be set, thats why i try to calculate the Stats in the CharacterStatsComponent or in the Character_BP.

My Problems with calculation in the Character are:

• I cant view the Stats into the Stat_Widget
• my regeneration will not work correctly
• i cant use BHealth (Base Character Health) i can only use Max and Current Health
• i will get some errors if im not CastTo CharacterStats
• CastTo CharacterStats will get a warning (will always Fail)

My final Question is:
Im using the Character BP, Character Stats_Widget and CharacterStats_Component (All Calculations Weapon + Armor + Skills = StatAll (Vita_All) Vita All will be caluclated to Max Health and Physical Deffense .
Is that a good way to calculate or should i use an other way?

If the Question is too big to answer here pls PM/DM me so i can explain better ^^

[gentle urchin]

Widget should not do any logic beyond showing stuff. So in this case i'd say it'd make sense to create a delegate in the char (or component since ur using that for calculations), for whenever a stat changes

Basically
BeginPlay -> Create widget -> Bind to all relevant event dispatchers (health updated, attribute updated etc)

Then whenever you do any of these changes just call the delegate! Possibly also directly return the new value of it, if it makes sense in that scenario

[sonic pine]

ok

i have 2 different Character Windows the Overlay where the Player can see his health- Mana and EXP bar and a seperated windown opend by pressing C

and the C window will not get the Values

[gentle urchin]

Same idea really

just bind the C window to the relevant dispatchers on creation

[sonic pine]

i think, i did^^
This was logic in widget

and now nothing ^^

I "linked" the character Stats (C Window) as Text to the value

This is what i did in the Widet directly and it was working

And now im casting to but

I think my problem is the communication between the charater and the Widget (Send calculated stats -> Widget as Text)

[gentle urchin]

This is what i mean;

Lets say your Pawn has the health info, and pawn creates the widget

[sonic pine]

ok

[gentle urchin]

In said pawn, you'd make a dispatcher

With some sensible name

It's setup with inputs in this example

What we wanna do is to bind up the widgets updateHealthDisplay event to this dispatcher

to do that, we need a function with a matching signature

In the widget, we create said function;

Now, to bind it up to the dispatcher, we drag and drop the dispatcher into the event graph in the pawn, and select "bind"

[sonic pine]

oh ok

[gentle urchin]

Since pawn creates the widget, the binding is fairly straight forward

create widget -> bind to delegate -> Create event , and select matching function from the widget

(dropdown list will update automagically)

Now that the binding is setup, all we need to do is call the delegate

[sonic pine]

wow ok a lot of new stuff ^^

[gentle urchin]

This delegate must be called whenever the health value in the pawn changes

[sonic pine]

ok thank you !

[gentle urchin]

To avoid missing it, one could encapsulate it in yet another function "set health" in the pawn, which only job is to set the new health value, AND call this delegate

you can easily connect several widgets to the same delegate 🙂 It will fire to all of them

[sonic pine]

thats very good

Thank you

[gentle urchin]

Hope it helps.

[sonic pine]

ofcourse ^^

[gentle urchin]

Ofc, this would probably require quite alot of work for you x)

[sonic pine]

thats no problem im here to learn ^^

[gentle urchin]

but you can combine them to a few bigger dispatchers if that makes it easier

[sonic pine]

i will need a bigger despatcher i think, i have a lot of stats so i try to create only one dispatcher for all stats

[gentle urchin]

^^

So something like this

Make sure to instantly call it aswell, to fetch the initial values 🙂

[sonic pine]

onelast question if i have you here, im using a sequencer, so i dont need to have a 100 meter BP line, its ok?

[gentle urchin]

depends on for what i guess, but most likely no problem 🙂

[sonic pine]

Each line is one Stat and a calculation from the main stat into 1 to 2 different stats.
For example:
Vita = Max Health and physical Deffense
Strenght = physical Attack
Wisdom = max Mana and magical Deffense
and so on

[gentle urchin]

but this makes it hard to call the dispatcher 😄

[sonic pine]

aha ok ^^

[gentle urchin]

cuz you'd sorta only 'want' to call it once when things are updated

[sonic pine]

i will call 2 different things
All stats are fixed but some stats will be changed in a fight by defbuffs.
the current health will not be needed in the dispatcher

Here i dont need the current mana or current health so i dont need to send this information to the widget

The Health and Mana here is only the max value so this shouldnt be chanced in a fight i think

[gentle urchin]

You're probably right. I mean, you know your system and setup the best 😛

i just proposed a method of updating them ^^

[sonic pine]

ok i will try it ^^

i have to see what is comming out to understand my mistake ^^

so usw discpather and the sequencer will destroy it ^^

[high ocean]

Is it normal for int to byte conversion to be +1? Doesn't seem like it
for instance, INT = 0 (tobyte) BYTE = 1.

[maiden wadi]

@high oceanNot normally. The only time an int to byte will change is if the integer is outside of the range of 0-255

-2 integer for instance should become 254. 270 integer should become 14. If the integer is in range, it shouldn't change.

[timber knoll]

you sure about this?

I'm pretty certain two's compliment doesn't work like that

[maiden wadi]

Vaguely.

[timber knoll]

but it's been a while

yeah negatives start with a 1

but either way it should be 0

[maiden wadi]

Just tested to confirm.. -2 turns to 254. 270 turns to 14.

[tight schooner]

@azure smelt Not that I'm aware of. It will throw compile errors for variables and functions etc that don't exist on the BP you're pasting to ofc. And god forbid the project you're copying from made changes to the standard macros...

[azure smelt]

Good to know, i had an issue before with my player floating in the air, turns out i didn't manually type in the float of the variable

I appreciate the reply 🙂

[timber knoll]

yeah yeah I meant you are correct indeed
-2 = 1111 1110

[gentle urchin]

didnt know it counted upwards from max min, on negative sign

the more you know

[timber knoll]

yeah it's a bit weird how two's complement works at first

[gentle urchin]

One would expect me to know this already lol.

Guess its just rare, atleast for me, to work with bits on a negative integer

[timber knoll]

just use a chart haha 😄 like this http://web.cecs.pdx.edu/~harry/compilers/ASCIIChart.pdf

[gentle urchin]

I just ment in my line of work one would expect me to know how ints work on a binary level 🤣

Beyond just knowing about the types :p signed/unsigned

[timber knoll]

yeah I should know as well since I'm studying game dev 😂

[gentle urchin]

Wouldnt think it appeared as much in general game dev beyond typical conversions anymore

Since optimization on a bit-level isnt necessary anymore

[timber knoll]

binary files

[gentle urchin]

Right, but do one really work in or with binary files these days

Atleast so far i havnt even smelled on them

[timber knoll]

idk, I just know we have to use them for a game engine we make 🤷‍♂️ no clue on actual industry

[high ocean]

@maiden wadiThanks! upon further examination I found out that the problem lies in byte to enum conversion. Byte x, returns the enum at x+1 🤷‍♂️

[crude birch]

hey there. i have a beginner question i guess - let's say i have several actors, based on different blueprints and i spawn them in the game at some point. they all have a certain variable (bool) with the same name.
on hover i want to check if the bool is true or false for that specific actor, regardless of what blueprint it derives from, but when getting the variable, i am always asked to provide a specific blueprint as from where to get the variable from

[timber knoll]

you could be using an interface afaik

and then you can see if that actor has the interface, and get the value from there

or a component would also work, which can be attached to any actor regardless of base class

[icy dragon]

Or Event Dispatchers.

[timber knoll]

yeah I would recommend components in this case, it gives you the ability to have a single point in which you can have the same behavior for all those actors

[crude birch]

i guess i did not get far enough with the tutorials and documentation. thanks a lot, i will look into these topics!

[wary shadow]

Hi, GetPhysicsLinearVelocities returns in cm/s or m/s?

[limpid latch]

Hey guys, I would like to emplementplayers in my game to be able to add custom name, number and eventually pick some sponsors logo to their character.

Something really close to what you can see In Supercross 4 (which is ue4 based) for example.

Does anybody knows in the big lines how I could achieve it ?
I can't find any similar question online.

[quartz pawn]

hi, so my character's head bone is being hidden and a separate mesh that has a head is being shown to other players except the owner. however, whenever the owner looks at his shadow, it shows no head. how can I like make the head bone shadow appear or make the multiplayer mesh shadow appear over the other mesh

[maiden wadi]

@quartz pawn There is a setting for that on the mesh component somewhere. I don't remember the name exactly, but it's like "HiddenShadow" or something.

Oh, wait, that might not work for bones hidden. Maybe? I've never tried it beyond hiding the whole mesh.

[quartz pawn]

I enabled it, it doesn't work

[maiden wadi]

Nice. Will keep that in mind. 😄

[quartz pawn]

well atleast I know about it for the future

[maiden wadi]

@limpid latch I'm uncertain of there are other ways to accomplish this. But the way I generally know that people handle that sort of thing is either to use multiple UV Channels, or better yet to set up their materials in a way that they can add a texture mask over the material and blend them together. That allows you to select the overlay material like the logo from blueprints pretty easily by getting the mesh's dynamic material and setting parameters.

[limpid latch]

Thx for your input, i would need to dig a bit more into material settings I guess !

[maiden wadi]

I personally have found this easiest by using multiple UVs. It's much easier to set up if you know how to add a UV channel to a mesh. But there are some major drawbacks. Notably it's harder to blend the overlay material with what is underneath of it. Like say.. Blending a logo with the fabric pattern it's supposed to be on so that it doesn't look out of place. Also multiple UV channels means extra processing versus just an extra decal texture usually.

Miniscule point though. The look is the most important.

[limpid latch]

OK got it. Thanks a lot Authaer. Crazy there is absolutly nothing online about in Game skin/livery creator.

[woven wing]

You're hiding the bone?

Bones... aren't visible. They don't cast shadows.

[dawn gazelle]

This can be used to hide parts of the mesh that are rigged to the defined bone.

[woven wing]

Huh... that's an interesting one. How would that work with skinning?

Like - if you're 50% weighted to the bone?

Does it blend out?

[faint pasture]

I doubt it blends, prolly just has a hard cutoff.

[woven wing]

Weird.

I think, if you're doing separate heads, you're probably better off having the separate heads as separate meshes.

And not using this.

[dawn wigeon]

hello guys

is there any tutorial for blueprints ? cuz im confused there's too many tutorials
material blueprints is different than another blueprints Am i right ?

im a Beginner in UE5

[faint pasture]

How good is your general programming knowledge?

[dawn wigeon]

hmm....u can say beginner i just finished python and i know the basics like boolean and variables .....etc

[faint pasture]

Just open up a template project and try to make the character do 1 new thing

[dawn wigeon]

but why ?! i need to understand blueprints first

[faint pasture]

And watch this
https://youtu.be/QcXHEsR0xHI

Just dig into it, if you've done python it's not any harder, in fact it's easier. Just look at how the third person template character is set up and then you can dig around and try to make it do something new. Or just copy a bunch of tutorials and learn nothing, however you want to do it.

[dawn wigeon]

i don't need to copy a bunch of tutorials

i need to understand how blueprints working to know how to use it

specially materials blueprints

[brazen pike]

imo, copying a bunch of tutorials isn't as bad an idea as people make it out to be. I did that and I just slowly worked out how everything can be used. Yeah it sucked only knowing the worst and easiest ways to do things for ages, but since I wanted to learn, I was able to see WHY there were better ways. It just matters if the person watching the tutorials is willing to learn or if they just want a door to open

[woven wing]

I find tutorials best for teaching me what's possible. Like "Oh! You can do that!"

I might not remember how to do it, when I come back to do it on my own - but just knowing you can is useful.

[cinder raven]

Whats the best way to make a character mesh(or the whole character) snap to a new rotation based on the direction of movement? I've tried using Rinterp and it moves the direction I want eventually but very slowly.

Or maybe its SetWorldRotation thats making it move slowly because it will not snap even when I take rinterp out

[faint pasture]

That's exactly what I'm saying, just open it up and start digging. It's really not hard at all

[faint pasture]

Any particular reason you're not using this character movement components Orient rotation to movement function?

[cinder raven]

Is there a way to snap the mesh into the rotation it finds?

[faint pasture]

Just set world rotation.

[cinder raven]

the camera is fixed and when I try that it makes everything wobble

when I set it the mesh rotates smoothly in the direction its moving instead of snapping

[faint pasture]

What you posted isn't orienting anything to movement, it's orienting to camera.

You probably got multiple things setting the rotation of it

[snow halo]

Afternoon all. I'm getting into adding Tick Prerequisites in BP (to begin with, cpp later). I was wondering if I can use the add Tick Prerequisite actor or component nodes in the construction script or when is the earliest i can add this so I can ensure the first ticks I'm trying to order initially fire in the correct order?

[faint pasture]

@cinder raven the code you've got there can be done just by using control rotation and having the pawn inherit control rotation.

[cinder raven]

Thank you for the response I'm trying to figure out what you mean im very new, are those both blueprints or settings inside of the character details or character movement?

[dawn wigeon]

Oh... thanks for help

[onyx token]

why does this not move in the relative x or y axis if i rotate CameraMain?

[rustic orbit]

Hey guys, I'm trying to understand the TopDown template better, would you say is bad practice to move the logic from PlayerController to PlayerCharacter? I'm not sure I understand completely why the move function is set up in the Player Controller. Lets say for a single player game, would it be better to have that in the PlayerCharacter?

[woven wing]

The instances need to exist before you can call them. So I think you can have components prerequisites within an actor defined in the constructor - but as only the individual actor exists within the constructor, you obviously cannot have it depend on other actors.

[keen monolith]

Hello. I have a class reference variable (to BP_X) - I would like to store this class variable on a database, which needs it to be stored as a string reference. What would be the correct round trip to get the class reference from the variable to a string format, and then back from the string format to the class reference?

[faint pasture]

@cinder raven how do you want the character rotation to be driven? By camera orientation or movement?

[cinder raven]

movement, but I had to use the camera as a reference for forward/right vector to keep up/down/left/right consistent between camera angles. now id like it so when I move in those directions the character snaps to that rotation instantly, as of right now its slowly rotating to what seems the correct direction

i tried rinterp and thought it was that that was making it slowly rotate but its not, also tried changing the rotation rates in character movement details panel and that didn't change it either

[dawn gazelle]

I don't think you can with the base engine in blueprints. You can convert the class to a string, but there's no built-in way to convert string to class. There is a free plugin on the marketplace called "Low Entry Extended Library" which has a "GetClassWithName" blueprint node that allows you to convert the string name to a class reference.

[keen monolith]

Thank you, this is exactly what I was looking for! 🙏🏿

[woven wing]

I think you can also do it like this, but I haven't tested it. The Low Entry Extended Library is handy regardless.

[cinder raven]

also tried changing the teleport rotation threshold in the mesh details panel

[woven wing]

Looking into this more, you need to use the Asset Management system to expose the Asset ID's.

[odd ember]

is it a data table?

if so you can store the class variable as the class name

[faint pasture]

Orient rotation to movement is a setting in the CMC, you can make it as fast as you want

[snow halo]

noted thank u

I have another question plaguing me right now. I have an actor (a character) bp and a bp scene component in it. On begin play in the component I call Get Owner in the component's begin play and sometimes get owner returns null. The hack we have in place is a delay 0.0 so that we have one extra frame to get owner. But why the hell would begin play on the component fire before the outer actor is valid?

shouldn't component's begin play always fire after the outer actor is already constructed (for lack of a better word)?

[woven wing]

While I don't think it's formally defined, usually it's the opposite.

Usually all the components are constructed, then the actor itself.

Which makes sense, if you think about it. The Actor needs it's components to exist before it can do things to them.

[snow halo]

oof, what would be the least hacky way then to make sure a component has a reference to its outer actor at the earliest possible stage of the component's existence?

this just feels sus

i don't like using delays this way

i also can't use tick in the component to check if owner is valid because tick is disabled on the comp

[lyric holly]

Why use event ActorBeginOverlap vs OnComponentBeginOverlap when working with a box collision? I am trying to understand the two events

[woven wing]

You could have the actor call an 'Init' function on the component and pass itself as an argument.

[faint pasture]

@snow halo why not have the character set that reference to self?

I would double check that you're getting the problem you think you are though, it seems weird to begin play would fire on anything before they are constructed

[gentle urchin]

Or adding it dynamically. Then owner is guaranteed to be valid , if inserted

But as Adriel says, it sounds weird in the first place

[snow halo]

@faint pasture ikr, been checking - it is surprising that it's happening

[faint pasture]

Yeah I can't think of how get owner would ever return null, how does a component exist without an owner?

[snow halo]

exactly

[gentle urchin]

But, dynamically adding it should solve it

If you dont wanna do some init function from char instead

[tight schooner]

Delay is the least complicated thing I can think of though. You may as well keep using that...

[snow halo]

our game is multiplayer so the functions/events in the component that get called through rep notifies are a question mark - so it is possible that an event in the component which needs the valid out actor reference is getting called before the component's begin play (if that's even possible)?

[gentle urchin]

Delay is more like a bandaid and not a fix imo 🤷‍♂️

[faint pasture]

Delay is gross

[snow halo]

yup re the delay this way

it is clean, but it

[solar dawn]

Hi can anyone recommends tutorial of connecting score UI to level bp? Example, once the game lost/win, player will be sent into a certain map for game over

[snow halo]

is a clean bandaid lol

[faint pasture]

In the score update function check if score = win. If so, open next map.

Shouldn't touch UI

[solar dawn]

If score=win?, The rest I know but this one is a problem

[faint pasture]

Check if the win condition is met every time you update the score

[tight schooner]

@snow halo I poked around what's available to BP components as an off the shelf event. Maybe if your components start deactivated and bind to "on component activated", your host actor can explicitly activate its BP components upon which they Get Owner

[snow halo]

interesting!

[faint pasture]

Score++
If(Score≥ScoreToWin) OpenNextMap()

[tight schooner]

Hopefully the binding happens before the activation lol

Otherwise you get the opposite problem

[gentle urchin]

Dynamic add component should also work 😅 wont be added before owner is rdy !

[faint pasture]

@snow halo Is this on multiplayer or no?

[snow halo]

yes the component is in our character in a multiplayer game w 10 players all possessing the same character bp. We have a repped float we feed into the component

[faint pasture]

Is there any sort of pattern to when it fails?

[snow halo]

unfortunately, we haven't narrowed it down that much yet. still debugging

[faint pasture]

I'm guessing it's pretty much always on the clients though right? never on the server

[snow halo]

ya we only locally set the float and the server reps it to everyone

all remote clients have their own unique float value that the local clients need so all remote clients look correct (it's a component for player calibration in VR)

[faint pasture]

No I mean the owner problem, nothing to do with this float

[snow halo]

mm, if i understand you correct, yes the error is always on the client

the null error i mean

[faint pasture]

I'm trying and I can't replicate it.

tried 3 clients, all seperate processes, bad network conditions, nothing is making it return void

what's your test setup?

[snow halo]

i might have to get back to you on that. It may have to do with the way player state and player controller get registered to remote players on character respawn after death

[high ocean]

I've been looking everywhere but can't find an answer. Why is the output not showing in console? - when i press tilde twice - I don't even know how to look for help on google. This is the problem:

[fossil osprey]

I am trying to make a ship that gets the player's location, flies above it, flies to the side of it after, but sometimes the ship's transition is not always smooth, any idea to why that is? (btw to move the ship i am using the forward vector and adding onto that) https://youtu.be/7ybLJSJLJbA

[high ocean]

@fossil ospreyIt just looks you are setting its location on tick... Current position is say 300, 300, 300; you add to the vector 10, but the next frame, it updates back to the location which was set the previous frame. I'm pretty sure you don't want to "add" to the forward vector and move the ship like that. Have you tried looking into the hovering component? - If i remember correctly, that's how it's called.

[faint pasture]

Show your code

[fossil osprey]

Ship rotates to the initial rotation

Ship moves to the top

When top location is met, he goes to the side

Beginning of the level

Rotates to side

[fossil osprey]

Havent heard of it, i took a quick glimpse of it, though it seems promising, it took me a great deal of time to figure this one and its a small issue, it won't be worth changing to the hover component

[faint pasture]

Setting location on tick is fine if you're using Vinterp to constant.

It looks like it's spacing because it's iterating back and forth between the approach modes. You need to simplify and separate your movement and control logic.

Have a Target location, have a function to fly towards the Target location, and have logic to update the Target location.

Once it finishes one approach phase, transition to the next without transitioning back.

[quartz pawn]

how can I make an actor not collide with the character, but still generate hit events?

[faint pasture]

Are you sure you want a hit or an overlap? What's the situation?

[quartz pawn]

well a character hits an orb

i want it to be walk through

but still generate a hit event

[faint pasture]

how fast is this orb moving?

[quartz pawn]

its not moving

[faint pasture]

Then just use overlap

Thats what its for

[quartz pawn]

well what about the overlap location?

[blazing comet]

Hi, what is the best way to clamp points near a spline? I have a plan, but I don't know how to convert the points. Is there a better way? https://stackoverflow.com/questions/69407701/vector-math-clamp-point-to-within-x-y-of-spline

[faint pasture]

You have enough info to get the point on spline's transform right?

you trying to clamp into a rectangle or a circle?

[quartz pawn]

another question, what the difference between a player controller and a main player controller

[blazing comet]

Hi, thanks. A rectangle would be best.

[faint pasture]

main player controller isn't really a thing

never heard that phrase.

[quartz pawn]

with variables

like I have a Player Controller

and in order to run a function in that player controller, it requires a main player controller

[faint pasture]

That makes exactly 0 sense. Do you mean how do you call a function on your custom PlayerController just given a plain PlayerController reference? Cast that reference to YourCustomPlayerController.

[fossil osprey]

Ah thanks for the help, i tried to have a real time target rotation dependent on the player, but what about rotation?

[quartz pawn]

so that will get the local player controller correct?

the cast

cause my game is multiplayer

[blazing comet]

Yes, from the ProposedPoint, I can find the nearest SplinePoint, and from the SplinePoint, get a distance and then Up/Right vectors to define a rectangle on the plane perpendicular to spline with ProposedPoint.

That's my plan. I'm not sure if it's a good plan.

[faint pasture]

ClampedPointPosition = PointOnSplinePosition + Spline.Right*clamp(Dot(Spline.Right, PointOnSplinePosition-PointPosition)) + same thing for Spline.Up

Or, as a shortcut, you can do some transform and inverse transform stuff to basically shortcut the same math.

ClampedPointPosition = PoinOnSplineTransform(ClampLocation(PointOnSplineInverseTransform(UnclampedPointPosition))

Something like that

[blazing comet]

Ok, so I have to calculate the clamped distance along the up and right vectors, which makes the ClampedPoint. That's cool.

What do you mean by the Transform and InverseTransform?

[faint pasture]

converts position from world to local space of a transform

[blazing comet]

Ok, that's a local coordinate system for any position on the spline? How do I make those Transform and InverseTransform functions?

(If you have something to google, that would be super helpful.)

[faint pasture]

Try just searching in BP lol

something like that should work

[blazing comet]

Dude, that is so awesome! THANK YOU!

[faint pasture]

might have the order of transforms backwards but you get the picture.

[covert arrow]

hey guys, I need help on a physics sound system when impacting with other objects so is there any suggestion to this blueprint it doesn't work entirely flawless but its my way at going at it.

[gritty elm]

@covert arrow https://www.youtube.com/watch?v=yUE_Jow-EKo&ab_channel=BartoszKamiński

[faint pasture]

@covert arrow I like to use impulse

[earnest tangle]

Window->Find in Blueprints

You can also click the binoculars icon in some of the other search boxes to "promote" the search to a project wide search

[covert arrow]

which node are you implying to is it called impluse from the mesh or?

[dull hatch]

Hello I am new to unreal and looking for a bit of help

I have this as part of the code

and it works fine for walking/running but i want to include a jump option when for example you hold shift then click but he only jumps up then down

Any thoughts on maving a charecter "jump" a certain max distance or less if the mouse is not that far away?

This is the jump/dash feature still tweeking but a few parts i dont like is when he get to the destination i click i want him to stop not slide till friction stops him and i dont want to jump so far due to launching the charecter i want it scaled depending on where the mouse is clicked.

This is a single player game the possed pawn part came from a tutorial set up to move to click and he set it up for both single and multi

• Update i figured out the stop on land part just increased the friction to a lot but still curious on the distance variable any thoughts?

[green fiber]

I have a character blueprint with a simple Health variable.. How do I access it in a behavior tree I made ? I tried to make a decorator but same problem, I can't access my health variable. Where do I find it ?

[odd ember]

get owner > cast to character > get health

or some such

alternatively pass the value to the behavior tree when it loads

[zealous moth]

Can the player controller get an actor component? Not at my pc atm

[woven wing]

If you want to access the health of an Actor that isn't the NPC running the tree, you need to either get the actor from the scene, then Cast it, or, probably better, get the actor from the scene, then store it in the Blackboard and access it from there.

[green fiber]

thanks guys ! @odd ember exactly what I needed, thankkkkkkss

[trim matrix]

On the player controller, If you have a are able to get a reference to the actor in which the componet lives, then yes.

[green fiber]

my problem was ........context sensitive tick bbox.......

aaaaahhhhhhhhhhh

[green fiber]

is it possible to access the behavior tree blackboard from a character blueprint ? and modify some values 🙂 ?

[odd ember]

all actors can get actor components

but I don't think all actors can get scene components

[odd ember]

what do you intend to do? sounds like you're trying to something you shouldn't be doing

[woven wing]

Yeah, usually a blackboard reacts only to it's behavior tree.

[timber cloak]

I can get info about On Hit and OtherActor from Capsule. But how to check whether that Other Actor is in front without using Linetrace?

[odd ember]

dot product

[woven wing]

You kinda don't want components injecting new state into a blackboard outside of the tree nodes.

[odd ember]

reminds me that I gotta do a dot product check too on my interactions

[timber cloak]

i searched Google and that result too but i am too stupid to know how to use it properly

i thought there would be something simple

[odd ember]

you check the forward vector against the forward vector of whatever you're trying to work with

so basically you're saying "which way is this actor facing compared to this other actor"

[timber cloak]

wait, i only need to know whether it's in front instead of multiple Actor's Forward Vector

in case i misunderstood

[odd ember]

well you need another forward vector to check against

[timber cloak]

the one (A) being hit and the other one (B) that hits. Both Forward Vector is required instead of Actor A's?

[odd ember]

the way I would do it would be something like dot(player.forwardvector, (player.location - actor.location).normalize())

[woven wing]

Yeah.

You need to get the offset between the two characters, and see if the dot product of that offset and the forward vector is positive.

[odd ember]

that way if the player runs around the object, it will still return true no matter which way the player is approaching it from

[lusty wave]

You likely want to reverse that subtraction, if you aim to compare the forward vector of the player to the vector pointing from player to actor. (Assuming I've understood the intention correctly here)

[odd ember]

probably

[sonic pine]

Hiho i have some Errors about my Update_Health and _ManaBar, i dont understand.
i have tested different types of Players for example "Self" and "ThirdPersonCharacter"
The Update Functions are from the Character Widget and they are used in the ThirdpersonCharacter.
Anyone have some ideas? (Bearbeitet)

[woven wing]

You are trying to use variables that contain no data.

You need to get access to the instances of your classes, otherwise you can't do anything with them.

[timber cloak]

my intention is just to see whether that Actor hits Player, is in front of the Player.

[odd ember]

then use the code i wrote verbatim

[timber cloak]

i will try play around with Dot Product, though i don't quite get it. Too stupid to understand

[timber cloak]

I can't code in C++ either. But i will try "convert" to BP by guessing. Thanks again

[timber cloak]

interesting.

[odd ember]

it's a 1..-1 range value for unit vectors (e.g. forward vectors)

which can be converted to a degree number using uhh

what is it

acos?

I forget

[sonic pine]

ok and how i will do that? i have "linked" the Current and Max Health to the ThirdPersonCharacter in the widget and to the widget in ThirdPersonCharacter

[odd ember]

you should encapsulate the logic of the health bar iinside the health bar as much as possible

then you don't get issues like that

you're probably updating the HP bar before it has spawned

or after the character is dead

or another such case

[woven wing]

Yeah, if it appears to work, but gives you those errors, the problems are probably happening only rarely.

If it doesn't work at all, then it's not being set up properly.

[sonic pine]

it is worling but i will get these errors very often ^^

[odd ember]

breakpoint it and see if it happens after the character's death

my guess is that is where it happens

[woven wing]

Yeah, or put in a 'is valid' test and breakpoint that when it fails.

To determine exactly when it starts failing.

[odd ember]

yeah isValid is a good tool

for this

or validated gets

whichever gets you up in the morning

[past raven]

I'm about 10 minutes late with this but it might help anyone who wants to learn more about dot products and basic vector operations
https://www.youtube.com/watch?v=O9pkcjFfKNQ

[onyx token]

i have a function in my game that shows the mouse cursor, and one that hides it again.
But if i click around, and then hide the mouse cursor, mouseX should just run automatically-

But i have to click into my window to make it run

[odd ember]

I think there's an option for that somewhere

[onyx token]

yea, like is there a way for me to click into viewport via blueprint?

right now i got this

i show the cursor & i lock it into the middle, incase the player plays in window mode

THAT works - but for the XY mouse movement to be available - i gotta click into the window again

[odd ember]

I think it's a project setting or something

I remember seeing it

I don't remember where

[onyx token]

oooh i found it

[odd ember]

oh my bad, I thought you were looking for the option to ensure that the cursor is focused on the game window without having to click it first

[onyx token]

yea that's what that does
atleast for my case

[winter kettle]

I was using this node inside a function, what I bound to it was a function, but it wasn't working, instead using the node through an event, and binding an event worked, is this expected behavior?

[rancid steppe]

That's awesome

[crimson nacelle]

hello pls help i made a projectile i want it to spawn particle when it hit something but it does not work with even hit is the way i do is wrong or its a bug Thanks 🙂

[faint pasture]

That's cross product

[odd ember]

no it's not

cross product is the vector you get between two vectors

[faint pasture]

You're telling me the dot product of 1,0 and 0,1 is 1,1?

[odd ember]

dot product is a float value

[faint pasture]

What should the dot product of (0,1) and (1,0) be?

[odd ember]

0

[faint pasture]

so what is that square for? Unless i missed something

[odd ember]

you're conflating two terms

cross product is finding another vector

it's unrelated to this

dot product finds a distance along the unit circle between two vectors

you use that together with acos to find the angle between two unit vectors

pretty standard stuff

this is cross product

entirely different

[faint pasture]

I know exactly what the dot and cross product are, I'm wondering what that diagram is trying to show lol

[odd ember]

and yields a vector, not a float value

a distance along the unit circle

[faint pasture]

That's not related to dot product at all. The distance along the unit circle between (1,0) and (0,1) is 90 deg or pi/2

[odd ember]

yes, acos(0) is 90 degrees

the value of the dot product isn't automatically in degrees, however

[faint pasture]

But yeah, I thought your diagram was trying to show something like this, where magnitude of cross product is area of parallelogram

I've found this sort of diagram to be the best way to teach intuition about dot product.

But if the dude was trying to find angle between vectors than yes, get the acos of that. Although I'm pretty sure that breaks down in code, i remember needing to use the acos2 approach.

or maybe that was just for tan operations

[odd ember]

there isn't an acos2

[faint pasture]

Dot product the hit or impact normal(whichever one is the normal of your capsule) and your capsule forward vector. If positive, then it's in the front hemisphere.

if greater than 0.7, it's in a 45 degree cone, etc

[solar dawn]

how do i apply this to bp? make a custom event?
EDIT: now i know, use branch

[ivory adder]

How would I make the player go over this jump without the possibility of falling off like the cannons from mario kart wii

Like from DK summit

I tried using collisions that add to the players velocity but it was too unreliable

I tried this but its too unreliable

nvm I think I found the thing I need

https://answers.unrealengine.com/questions/1012985/view.html?sort=oldest

[onyx token]

why do i always get the weird yellow Target when i call an interface?

in all tutorials, the target is a blue object reference, not a yellow blueprint reference...

and i feel like that's also the reason why my interface doesn't get called somewhere else

[drowsy osprey]

Hi folks, Has anyone ever created a camera array for many cameras in world that you could just check off bools in a box collider BP so you could limit which cameras you can cut to?

I have a lot of unlike cameras I works on vehicles, and in various BP’s and would love to be able to call them based off tags, but limit which ones are “in cue”.

I feel like there’s an easier way to express it than I’m currently thinking. A reusable BP for bounds would be cool but unsure of where to begin since there are so many cameras (25+) to filter.

[timber knoll]

That’s actually correct

[drowsy anvil]

Hello, on the tutorial video I am watching, the right image has these options I am supposed to select, but I don't see them on my nodes list? what can I do?

[timber knoll]

You need to drag out of a vector node

[timber knoll]

Hmmm having 25+ cameras sound overengineered to begin with

[drowsy osprey]

Not exactly.

There's a reason I'm using this many POV's in a single scene.

And it isn't a video game per say 🙂

[timber knoll]

What youre mentioning at the end can’t help you?

Like creating an actor to hold a few cameras with same tag?

So you have less to filter, and can then swap within that actor

Idk it’s hard to imagine your use case

[drowsy osprey]

For this, just being able to check off boxes quickly and make instances would be wonderful.

[drowsy anvil]

what do I type in the list for a vector node that gives me this option? why does he get the node from there, but I don't?

[ivory adder]

How do I get any object that overlaps with a box to be launched to a precise location, I asked this before and said I found something but I just tried it and it doesn’t work for what I need, any ideas?

[timber knoll]

He’s dragging it out of ActorLocation return node

[drowsy osprey]

I have a giant map to cover with them, and generally only need to setup a few, but I'm cutting through the scene with various paramaters, and automatic cuts based on time and events.

[timber knoll]

Are you doing the same?

[drowsy osprey]

If I can centralize the "cutting" to be within one blueprint it really helps me automate and parameterize the scene. When the actor is in "x" bounding region, it just includes only the checked. Kind of like a music BP I just made with sounds in an array, but that was easy.

They were all the same kind of object.

With this, would I need to do a get all of class with tag and somehow add that to one array?

[timber knoll]

Move your location x y z from point A to B using lerp

[ivory adder]

I tried that, using a spline and stuff but it sent my vehicle to 0 0 0

[drowsy anvil]

nothing like that on mine that I can see even with content sensitive off

[drowsy osprey]

The world has three zones, and each has specific areas where in world cameras here or there have better qualities for when the actor is in one area or another. It's a bit of a parameterized edit, like how a tv show would play out cutting. But still dynamic.

[timber knoll]

Thats weird, try restarting ue

[timber knoll]

Okay so each area would need a few cameras ready and then between those cameras you want to choose one using parameters?

[drowsy osprey]

In that scene theres 8 in world object based cameras.

But there are times when I want to say, make only one type come up from all the areas. Hints why I want them all in each instance to uncheck.

[drowsy anvil]

I restarted and same problem

[drowsy osprey]

Like If I want to call all three close up cameras in the ship interiors etc from three areas. Having a global list to pick from would be stellar. I'm just not sure the route that's easiest. It's like there needs to be one BP thats the bounds telling another BP "hey only these cams now"

[timber knoll]

Okay what about a set instead of array

Which you can fill with arrays

[drowsy osprey]

Hmm not sure what you mean.

Like set a variable that has specific arrays I make?

[timber knoll]

Nono

A set is a type of container

Which matches a key to a value

[drowsy osprey]

set array elem?

[timber knoll]

So your key can be used to quickly get the items you want

And that would them be an array or another set

When you create your variable, you can choose Set as a type of container

Where an array looks like this {elem0, elem1, ...}

A set would be {{key0, elem0},{key1, elem1},{...}}

[drowsy osprey]

hmm I'm trying to figure out, Key you mean like the dropper?

Like when you make it public?

Sorry I'm so visual. I'm going through nodes looking up

[timber knoll]

Key is the naming for the thing as my example

The first value in the pair is called a key 😛

[drowsy osprey]

I see a Set Selected Key haha. Is there a way to screen shot or are you afk?

[timber knoll]

Wait a set isn’t even what I mean lol

Jesus containers are so confusing in bp

Squize hey help me out haha

[gentle urchin]

Sounds like a map variable

[timber knoll]

Is there a kvp container in bp?

Yeah a map of some sort

[timber knoll]

Im on my phone so it’s hard to double check and screenshot :/

[gentle urchin]

Saame.

Walking the dog so cant rly screenshot anything 😅

[drowsy osprey]

https://www.versluis.com/2020/10/how-to-use-a-map-variable-in-unreal-engine/

Is it this?

[timber knoll]

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/Blueprints/UserGuide/Maps/

[drowsy osprey]

So I could map/name all the cameras with the string int and map those to integers, then those would be fed into the array so it knows what cams?

I don't know why this one feels so abstract to me

[timber knoll]

Well the easiest I figured is map based on area

So you each collision tells the map, this area

And then you could store arrays inside that map

So it knows which cameras for that area

[gentle urchin]

You could probably also just add a second tag to it

[ivory adder]

Why is this happening

[drowsy osprey]

Oh like call each one a number

[timber knoll]

But all this nesting etc sounds more of an issue easily solvable using cpp instead of bps

[drowsy osprey]

sadly don't know c++

[timber knoll]

At least to me, im still learning a lot about blueprints and its limiations

[drowsy osprey]

This is one of the last major things in the way of a finished demo and looks like I saved one of the trickiest for last. It's a crazy thing as the game has very little possession and is mainly NPC.

[gentle urchin]

You could make some arbitrary camera manager class and use that for global reference to all the cameras, and feeding it with whatever criteria for enabling cutting or not

[timber knoll]

Check teleport on the move

[drowsy osprey]

ohhhh there we go thats an idea.

So cam managers can get all cams?

[gentle urchin]

Not the default ones

[drowsy osprey]

Or do I still need to manually set each

[gentle urchin]

But a custom one, sure

[ivory adder]

On or off?

[gentle urchin]

Its a single get all actors of class call

[timber knoll]

On

[ivory adder]

K i will check

[drowsy osprey]

C++ custom or BP

[gentle urchin]

Bp

[drowsy osprey]

In my case I have a few cam types

[gentle urchin]

Right, but they're all just cameras in the end

[drowsy osprey]

Gotcha so it shouldn't matter for it

Because I have a player controller with a lot of them already setup

[gentle urchin]

Unless you've gone and used actor as the parent class for them...

[drowsy osprey]

Some are actors because they're these dynamic objects that snap to AI and do specific things like lerp in patterns

[gentle urchin]

They should probably all share the same parent class either way

Sounds like some are components aswell?

[drowsy osprey]

yep

Some are level actor cams, some are cams that snap to things and track and perform animations, some follow shared points in the world. We programmed each bot in the world to have specific traits. Some are character BP

[gentle urchin]

Guess it would be 2 calls to fetch them all then. And probably 2 or more arrays

Same principle anyway, just a tad more work

[drowsy osprey]

Is it just standard get all of class with tag?

haven't made a cam manager before but looking now

[gentle urchin]

If some are components then i believe you must also do a fetch all components by class/tag aswell

[drowsy osprey]

Gotcha

So make sure those are tagged. So far on some I've just been able to call the actor and I manually unselected the cams I didn't want in them. Like our AI drones

[gentle urchin]

Its kinda hard to see the specific usecase here really,

But i found manager classes to be very helpfull in general. Got the same for the NPCs

[drowsy osprey]

Easiest way I found to manage the world is letting the actors in it kind of be like little wind chime elements, and as they trip bounding boxes by exploring, the edit changes. Even the cutting pace elevates depending on world conditions and state. So far I've been mostly using a controller mapped in a specific way to manage "like groups" and cut back and fourth. The whole world is always loaded and there is no loading time at all cutting.

[gentle urchin]

Sounds pretty interesting tbh ^^

[drowsy osprey]

It is. But that doesn't make me a good enough dev, even tho I already did all that. haha

(had help from a few of my amazing dev friends and team mates also) but this is the end of a year long exploration

[timber knoll]

Yeah it sounds interesting and fairly complex so for sure not bad stuff 😛

[drowsy osprey]

If I can get every single camera in world all within one central point, and then just hit the thing with event dispatchers and such, or setup timers I can set with bools, we can have a lot of fun. (we even have some parts that cut via sound)

But managing it all the way I am now in multi bp is a nightmare.

[chrome fractal]

I need to run my game on max fps but I got a massive fps drop in it. how can i fix this?

[gentle urchin]

Setting up the manager, and possibly adding an interface to all the related actors could centralize handling to some extent

[ivory adder]

Nope same result

[timber knoll]

Well if you have FPS drops you should profile

Usually you still want to limit fps in general

To some high number like 300-500

[drowsy osprey]

I've been loving event dispatchers for the weird things (this is all pixel streaming btw) so a crowd interacts.

[timber knoll]

Hmm okay but it does like colliding along the way

[ivory adder]

?

[timber knoll]

Have you tried just disabling collision while on the spline?

[ivory adder]

How on earth do I do that?

[timber knoll]

Or is there more wrong that I don’t see

On whatever has collision you can set collision enabled (node)

[ivory adder]

On the spline object or vehical

[timber knoll]

For your vehicle

[ivory adder]

Wont I just fall through the floor

[timber knoll]

Not if you only disable it during that movement

[ivory adder]

How do I do that

[chrome fractal]

can you please explain or there is any documentation for this

[timber knoll]

Theres some very good videos and documentation from unreal themselves

Its a bit much to explain

[timber knoll]

On your timeline when you start it disable collision

On complete, enable it again

[ivory adder]

What command to i use

[timber knoll]

SetCollisionEnabled

I think, I’m on phone

[ivory adder]

This?

[timber knoll]

Eeeuh ive never used that one before

But you have a similar on components

If you first drag in your component and go from there

[ivory adder]

The vehical dosnt have this code

[timber knoll]

You can try that node tbh probably does same

[ivory adder]

Nope it did nothing

[timber knoll]

Your vehicle might not have it because it could be visuals only

But there will be a component with collision somewhere

[timber knoll]

Otherwise it would fall through floor 😛

Yes that should work if its the one that collides

[ivory adder]

It’s connected to other comp on a on overlap

Its still broken

[timber knoll]

Wait other component?

[ivory adder]

Yeah

[timber knoll]

Thats not your vehicle

[ivory adder]

Its the only on it goers into

[timber knoll]

It needs to disable on the playercar

Oh well actually component like so might also work

Unless that’s not all the colliders on your car

I would make a function or so in the playercar

Which enables and disables the collision

God why is explaining through textchat so hard xd

[ivory adder]

Lol

I will test that out later I gtg

Thx so much

[timber cloak]

calculate using hit normal of capsule instead of other actor. Interesting. Thank you. Appreciate the detailed help!

[dire reef]

i'd be appreciate that of your help in advance

[nova finch]

get controled pawn doesnt exist

plz help

nvm

found it

context sensitive

[dire reef]

at first call get player controller, then from its output get controlled pawn

[nova finch]

no no i got it

context sensitive hided it

This blueprint (self) is not a Controller, therefore ' Target ' must have a connection.

help

@dire reef can you help me with this

[icy dragon]

I'm sure no one going to help if you don't give any supporting screenshots for a clear context of what you're trying to do.

TL;DR: No context, no help.

[nova finch]

here

[icy dragon]

Why not using Get Player Pawn?

[nova finch]

thank it works now

but it doesnt move

[icy dragon]

This question belongs more on #visual-fx

[velvet nymph]

hey guys, I am trying to implement a line trace from a 3rd person (over the shoulder) camera with a spring arm so I can add item/object interactions. I have a pretty simple setup getting the camera position and rotation. It seems to start off in the correct position rotation however as I move around the line trace becomes inaccurate. Not sure exactly what I am doing wrong here.

[velvet nymph]

nvm my math was wrong 😄

[solar dawn]

Hi guys, so I've set health bar for an actor and my player supposed to protect it otherwise game over. So i've succeeded making it game over but the actor has health bar with 100% and the hit object just one hit killed it which it is not what i want. the bp i made seems do not detect there's a health percentage, can anyone help? BP images coming right up

the actor that needs protection

the hit object which goin' to hit the actor

the health bar ui, i put the health bar not in viewport but in an individual bp. and in the bp there's no code

[dark crow]

You have to add the GetWorldLocation to the Multiplied Forward Vector for the End

[earnest tangle]

nevermind I read it wrong

[velvet nymph]

Thanks! Thats exactly what I found after some debugging and googling 😅

[winter pebble]

Hey guys, is there any way to compare the speed of two pawns (moving via the floating pawn movement component)?

I'm not a maths whiz but this is the best I've come up with so far and it seems to sometimes maybe work:

[earnest tangle]

so you want to compare their speed only on the x/y axis, regardless of direction otherwise?

[winter pebble]

Yep, spot on ^.^

[earnest tangle]

you could multiply the velocity by another vector 1, 1, 0, and then use get vector length

[winter pebble]

Awesome, thanks very much zomg, will give that a shot! 🙂

[fading oak]

is anyone avaliable to give me some advice (not really advice, more so tell me what im doing wrong)

[dark crow]

Yeah! Not posting your problem is what you're doing wrong 💞

[fading oak]

ooft, My bad, am used to asking first rather than just plonking my problem in ! sorry

so this is what i have in my level blueprint atm, and what i want to do is slow down game time but have my payer moving at the normal speed

but the problem is my character isnt a "character" its a "pawn" so the "set custom time dilation" doesnt seem to affect it

[dark crow]

Dilation works for every actor

Custom Time is just a multiplier of Global Time

Aka if you have Global to 0,1 if you want your player to go normal speed then set Custom of it at 10,0 (0,1 * 10 = 1,0)

And be sure to have it in the Pawn then

[fading oak]

so put the blueprints in my player blueprint not level blueprint?

[dark crow]

Put that in your players yes

Level Blueprint is not where you should do things at all

Player or Controller

[fading oak]

thank you

sorry to be a pain

but does this look right?

[dark crow]

Yeah

[fading oak]

this is in my player blueprint

[dark crow]

Try it out

[fading oak]

my player is still moving at .1 speed

[dark crow]

Odd, works on my side

[fading oak]

hmm

i also dont have a "player movemnt" component, will that effect it?

[dark crow]

Doubt since it's a global parameter

[fading oak]

would anything else be stopping it?

or is there another way to achieve the same effect?

could it be because im using torque and Physics to move my player?

[dark crow]

Could be cause you're not multiplying it by delta time

Add a Pin and multiply both with Get World Delta Seconds

[fading oak]

sorry how would i do that, i am fairly new to this

this didnt work so i probably did it wrong XD

[dark crow]

Oh no

I mean here

Add pin +

[pure terrace]

Hey guys, I am trying to make a selection rectangle, but I am running into a few problems. I saw a few tutorials on how to make a RTS camera, so I have a pawn that can move around with WASD. My problem is I am not sure how to add a hud to this pawn. I have 1) a CameraPawn 2) a HUD 3) Blueprint Interface.

I have the pawn that can move around. I have the HUD and blueprint interface, but in my pawn event graph, I cannot 'get hud'. Am I missing something fundamental? If I make a playercontoller that controls the pawn, how do I possess it during spawn ( I only plan to have 1 of these pawns)?

[river pine]

HI, its the first time i try to count hits... well i have a sowrd and hit a door 3 times, then it breaks..BUT this setup here calls the Destruction on the firstt hit already..whats wrong?

[dawn gazelle]

You are setting a value on your "machete" object, but I think you maybe meant to set the value on the door itself?

[river pine]

yes maybe i just was seeing this befre somewhere.. so i try that then with the door itself

@dawn gazelle nope same

[dawn gazelle]

Maybe your Hit event is being called rapidly? Put a DoOnce after your cast then add another pin to your sequence, attach to a short delay (probably .5 will do) then plug that into the DoOnce reset.

[river pine]

ok i try this

[dawn gazelle]

Should look somethin like this:

[river pine]

WORKS!

Thanks man

[meager spade]

Is there somehow I can find out how long it will take to interp between two values based on what speed value I input?

[dawn gazelle]

Only if you're doing a constant interp as the other interps usually have a smoothing curve to them that slows down as you approach the value.
The time it takes is effectively the difference between the values with the interp speed being the number of steps taken if you're using something like Tick for your delta time.
So if you had a current value = 0 and a desired value = 10, with an interp speed of 1, it should take approximately 10 seconds.
With an interp speed of 2, it would take 5 seconds.
If you started with a current value at 5, and a desired value at 10, and an interp speed of 1, it should take approximately 5 seconds.
With an interp speed of 2, it would take 2.5 seconds.

[visual vigil]

Can any1 tell me what causes remove from parent to not work in some cases

[eternal reef]

Wouldnt it also be dependent on the framerate?

[dawn gazelle]

If you're feeding in Tick's delta into the interp, then no. It becomes frame rate independant.

[meager spade]

Okay, since it's value based I think I would be better of using a timeline

[lapis zenith]

Hey guys, I recently started learning about splines and I was wondering if it is possible to create a spline and add points so that it follows the position of an actor leaving a trail behind it

[woven wing]

Yeah, should be possible. Look for the 'blueprint spline component'.

[glass stump]

what's the best way to make it so an enemy's speed increases?

(like when they detect me, to chase. i've already set up the detection code, just don't know how to make them increase speed.)

so i need to create variables for it?

it's a character but the variables aren't there.

ah, thank you, i've got it! :)

[onyx token]

okay-
Short question - did i screw this up?
I make a button, and give it some text that says "Farm"

i make an interface, to send that signal out of the HUD-

and then in my camera BP, i spawn it.

But dis shit don't work

have i fucked up somewhere?

not even this works

but the button does work, because if i put a print right behind my "OnClicked" - it prints. For some reason my interface seems to not work

[dark crow]

Where are you calling Spawn Building

[onyx token]

in my UI blueprint

[dark crow]

And where is Event Spawn Building

[onyx token]

on my character (which in my case is a floating camera) - blueprint

[dark crow]

You messed the Interface

[onyx token]

so on my pawn

[dark crow]

You have to make a Call from the UI, not directly use the Interface Function

Call Spawn Building

[onyx token]

call spawn building where?

[dark crow]

https://cdn.discordapp.com/attachments/221798862938046464/893920432217010246/unknown.png

Instead of Spawn Building

[gentle urchin]

Target must be char

[dark crow]

I think he has the Interface in the UI too and is calling the Function

UI interface basically

[dark crow]

That won't work

[visual vigil]

Can any1 help me , my loop is creating more items than intended

[gentle urchin]

Player pawn doesnt implement the interface

[dark crow]

Cause you're using the UI interface

[onyx token]

wait- so i can't use an interface communication between my UI and my player pawn?

[dark crow]

You can

Let's start with this

You have the Interface both on the UI and Character no?

[onyx token]

pls gimme 5 more minutes, i'll try to help you later

[onyx token]

sure, it's implemented on both BP

[gentle urchin]

Usully when procedurally filling up some grid you'd wanna clear the grid first

[onyx token]

if that's what you mean

(i called the interface buildings)

[dark crow]

You don't need it in the UI

You need to use a Message

You can call an interface from anywhere

[visual vigil]

I did that

[onyx token]

oh- you're right lol

[dark crow]

Having implemented it in the Actor means it will respond to it

[onyx token]

i see, okay neat- but it still doesn't work

[gentle urchin]

Sweet. There's a clear all children function doing this for you btw.

[dark crow]

Use a message

[onyx token]

like i just get the call, not a message

[dark crow]

Literally type

Call Spawn Building

[onyx token]

yeye, but i don't get it

[dark crow]

Not from the Exec pin

[onyx token]

only the call, not the message

[dark crow]

Cause context sensitive strikes in like that

[onyx token]

WOOOW

why

[dark crow]

Context Sensitive

Use Message

[onyx token]

alright... So from now on - when using interfaces - don't go from the exec pin

[dark crow]

And as a target use Get Owning Player Pawn

[onyx token]

but instead do it somewhere else

ok now my interface works, thank you so much

[dark crow]

👌

[onyx token]

i was this close 👌 on starting to fuggen inherit the shit out of everything

and bool my way through this

[dark crow]

Scaryy

[odd ember]

inheritance may be better in these situations purely because it gives you a better overview of how classes are connected. but ultimately EC(S) is the best way to go

[onyx token]

hang on, you seem smart - can i ask you something else?

[dark crow]

Am not smart in the slightest, but sure

[onyx token]

when i spawn an actor, and i click my button - does "GetClass" work in this instance?

[visual vigil]

OMG dude you fixed my problem that i am trying to figure it out for 3 hrs. Thanks

[gentle urchin]

Not if the reference is invalid , which it probably is(?)

[dark crow]

Yeh, i think ref has to be valid, not sure it points without a ref

Can try tho (?)

At this point i would directly store it as a class tbh

[onyx token]

hmm a class reference doesn't change it either

it is just a run of the mill BP...

[odd ember]

what's the issue

[onyx token]

can't spawn my comfy farmhouse

[dark crow]

Class Ref points at the Class, so no need for a Object Ref

[odd ember]

getclass like you've done is correct. it will get the class

but you don't check for validity

[onyx token]

oooooooh

nvm

i promoted it to a variable

im dumb

[dark crow]

I think they're trying to spawn something based on an UI click

In that case directly Class ref is better

[onyx token]

i forgot to set the default value

[odd ember]

ah yeah I mean you don't need the object instatiated

[onyx token]

WOOOO
https://cdn.discordapp.com/attachments/847253861403197471/893924887670980628/gK4dcKNDtd.mp4

thanks alot guys

[dark crow]

Farm simulator

[onyx token]

tbh, i'm just gonna hardcode the class references to the buttons. fuck it

[odd ember]

that's right, I do none of the work and take all the credit

😏

[dark crow]

You can hardcode and make them soft class pointers

then async load them or something

[pale blade]

Is there any way to detect/auto-remove these unconnected reroute nodes?
Anything

[onyx token]

i think i'm still too dumb for those kinds of words

[dark crow]

It's alright, basically doing that doesn't load them in memory till you actually need them

a soft reference basically vs a hard one (always loaded)

[onyx token]

not afaik
https://answers.unrealengine.com/questions/403785/feature-request-dissolve-reroute-node.html

[odd ember]

not as far as built in functionality. you'd have to work with the BP VM compiler in cpp

[dark crow]

with an eagle eye

[onyx token]

lol

since noone wants help right now - time for meme

=>

https://cdn.discordapp.com/attachments/847253861403197471/893926297280073778/E5vtmgtGkM.mp4

incoming!!

[dark crow]

It's impacting itself

[onyx token]

yea, i didn't mask the collision

[odd ember]

farmhouse projectiles, very baba is you-esque

[dark crow]

let it be and market it as a feature

[gentle urchin]

its not a bug, it's a feature

[onyx token]

btw- if i use github locally...
and not upload it anywhere...
does that defeat the purpose and thus makes me dum?

[dark crow]

It's something...

Look into Microsoft Azure Devops

Unlimited space, just pay the users (only above 5)

[odd ember]

it's a backup if nothing else

[onyx token]

so can i revert code even if it's just saved locally?

[dark crow]

Yea

Should still keep track

But fr consider Azure :p

[onyx token]

looking into azure, that actually does seem really really neat