blueprint

[faint pasture]

K use a foreach loop

Drag off array and type foreach

[severe geyser]

and then connect loop body or completed?

[faint pasture]

Body

Body runs number of items in array times and provides a reference to each item

[severe geyser]

like this?

[faint pasture]

Yeah but put destroy actor after the complete or else it'll only damage one Target and then destroy itself

[severe geyser]

it still only killed one

it's working

I increased the radius

[jaunty solstice]

Has anyone tried to translate the logic from another application entirely into UE? I'm trying to understand when it makes sense to various types of BP communication, direct vs interfaces vs event dispatchers.

[severe geyser]

it's killing multiple enemies but doesn't seem to be getting all of them in the radius

[faint pasture]

Make the sphere visible so you can double check that

[severe geyser]

@faint pasture it's working, but not as expected. It seems to be killing some and ignoring others.

I think it fires the impulse which puts a few outside the box, so when it checks to see which actors are overlapping, it's not applying damage to the ones that got bumped up

[keen pendant]

hey guys - trying to get a new pawn to spawn and replace the current character I have. running into errors wondering if i could get help

[white field]

a skeletal mesh has to be visible for it's sockets to be available?

[last abyss]

well you're not feeding the possess node a pawn to possess

[keen pendant]

@last abyss isn't that done by spawning an actor? I don't understand.

Here is my initial reference - they did this as a system, but I am looking to do it just for ONE instance, not an array.

https://answers.unrealengine.com/questions/867052/how-to-swap-out-character-pawn-blueprints.html

[last abyss]

the possess node's target is a controller and you're plugging in the bp sphere reference into the target.

[keen pendant]

Worth mentioning, in their version 4.21 it didn't automatically create this TARGET: LAST HIT BY node.

[violet flax]

Hello, i don't understand something inside one of my blueprints. I was starting to create a "Event ActorBeginOverlap". I need two Arrays that are created at the beginning of the game. Just to check if i get something out of the arrays i use a "print String".
https://blueprintue.com/blueprint/a83ce7y6/
Here you can see my blueprint.
The bottom one with "Spawn Field Array" is working. The Top one "Field Array" is giving me "accessed None" Error.
Why is one working and one not if they are coming from the same blueprint?
I checked if the top array is functioning and in the blueprint where it comes from it does work and give me something with Print String.

[last abyss]

https://prnt.sc/11xkx86 this is what you're looking for I suppose. For reference, titan is a pawn so I can take the return value on the spawn and plug that into the possess node. Target of the possess node has to be a controller, so you Get Controller of the current player and plug that in. You're getting the error because you're plugging in a reference that doesn't derive off of the controller object reference into the pin that's expecting a controller object reference. In other words: you're telling the 'Last Hit By' reference to run a function that it, or its parents, doesn't have.
as it turns out, when you plug a pawn into a controller pin it actually auto generates 'Last Hit By' which will give you the controller object reference of the pawn's controller that last hit the pawn? although I'm not sure what this refers to it is unlikely that it refers to the controller your current pawn is using in this case.

[warm summit]

I am using Midi input. I have it working in a BP but, I have found I can only seem to get one BP at a time to listen to the input. If I have 2 BPs listening for input from the same Device ID only one will work.

Is there a way around this? Is this exactly where a BP Inteface is meant to be used?

via a BP interface?

I don't know why... but I really don't understand BPIntefaces... not a programmer by background but some how they flumox me

I am currently taking the input and having the result of using it get to other BPs via casting and calling custom events

ok, I have done OOP

[last abyss]

if it's giving an accessed none error that means that the variable doesn't have a default, or doesn't get set before this event is ran.

[warm summit]

i get confused by the idea that they are "functions in name only..." which Matt W called them in his vid. I sorta got it,but where would I build the initial input receiving and filtering?

[icy dragon]

Interfaces are meant to pass through information between blueprints.

[warm summit]

yea and he says, Interfaces are sets of fuctions "in name only" and they make sure all BPS that implement it, have those functions.... I have made a function library I am using.

all those functions are available to my bps...

ah...

I am having to cast to get to these other BPS I am sending data too and calling events in. But also I have heard that a BPI lets you talk to many at once, I actually only want to talk to one BP at a time often. is that still possible with BPI too?

@trim matrix Guess I will go do some more BPI tutorials, till it "sinks in"

thats what I am doing now

[violet flax]

Thanks for your answer, but the two arrays are set at the start of the level and my event fires only if i do it. So this to variables are set.
In my example i have a variable for "SetField" which is my other blueprint, but because it is a class blueprint. I can't assign a Default Value for it.

[warm summit]

and its working well, but thinking to make a separate BP for another part of the project that I could control via midi too...

@trim matrix thanks 🙂

[barren salmon]

Hello i have this really werid teleport bug where it will only run on startup but it wont do anything when it is being played

[keen pendant]

@last abyss - thank you very much for helping. For context I am creating a lightning dash effect where the manniquin transforms into a ball and can fly around. It's mostly for fun and not production - still trying to figure out how to apply movement to a niagara system BP, but I'll figure it out!

[cinder shell]

hey guys! Can someone please help me to figure out how to append more than two arrays together? I'm trying this way, but it's just adding the first one

[faint pasture]

Swap pin order

I think. Isn't the output array the bottom one?

[devout geyser]

Ai move to node doesn't work... I have a character which is the player's and i wanna click on world location in-order for it to move towards it, and it doesn't, is there any settings i need to check?
(The event gets fired but the node doesn't do anything)

[severe geyser]

I am now using Apply Radial Damage to deal the damage for an explosion. I want it to damage all enemies within the radius, but it seems the enemies closest to the overlap are blocking the explosive damage to those in front

I need the damage to damage everything within the radius

any ideas?

[devout geyser]

get overlapping actors, and apply damage

the get overlapping actors will get every actor within the radius ( if that's collision )

[severe geyser]

I tried it that way but it seems it was still blocking

here is what I have. It's not killing all enemies within the damage radius. It seems the enemies in the front are blocking the damage

[sand shore]

That doesn't make sense, overlapping shouldn't care about occlusion

do the impulse last

or get the array before the impulse

[sand shore]

No?

It should modify the top input (A contains both the contents of A and a copy of all content in B; B is not modified)

[severe geyser]

impulse at the end did not help

[sand shore]

are there checks before applying the damage?

it would have been a little odd for end-impulse to have affected it, but without more context we're just guessing here

Two other suggestions:

Print the display name of every actor as you call Apply Damage

Toggle on show collision, verify everything is within the radius

Also, if this is a 2d game, keep in mind the 3d nature of a sphere- off plane enemies have to be in a smaller radius to get affected by the sphere

[severe geyser]

its not 2d

[sand shore]

k

like I said, guessinf

[severe geyser]

what kind of checks?

[sand shore]

@cinder shell are all those references valid at the time you call?

[sand shore]

it is your game. Stuff like line of sight to the damage causer is often enough a feature. But not default in the engine

[sand shore]

if any of them are null and you expect them to be valid, you wouldn't copy from them and will see an error about "accessed none"

[severe geyser]

how would I check that? My regular melee attack used a line trace to know when it's hit and deals damage

[sand shore]

Stuff like that?

You would have added it in.

[severe geyser]

there's only one attack in my game right now, and it's that

[sand shore]

hmph

I'm out of ideas then

[severe geyser]

here's the collision settings for the enemies

[sand shore]

What of your On Damage functions (been a long time, those might be named differently)

the other side of Apply Damage

[severe geyser]

nothing is on the other side of apply damage

[sand shore]

So, then, what makes the health go down?

Where are you decrementing health, or incrementing damage, or otherwise applying the failure state of your simulated opponents?

[severe geyser]

I have an Event AnyDamage setup

[sand shore]

Okay, that is what I was referring to

Anything weird about that?

[severe geyser]

no that all works fine. Attack enemy, decrease health, die. Enemies are still dying from the explosive damage but I just need it to kill all in the radius, not get blocked by the ones in front. I figure it's because I have the enemies set to "block" the trace responses?

[sand shore]

Hmm

but here you query the set of overlapping actors

[severe geyser]

so the trace hits them, then stops

yeah

[sand shore]

it isn't like a light source, anything in the radius should be in that list

[severe geyser]

so bizarre

[sand shore]

mhm

a sphere trace may have been blocked

Multi Overlap test or even regular passive trigger volumes should get everything

[last abyss]

boxtrace will get the first hit and then stop. to hit everything you'd want multiboxtrace?

[severe geyser]

@last abyss Hey Kira, here is the one I am trying to fix. For the regular attack that is using the boxtrace. that's all good. It's the explosive damage that is causing me trouble

this one

[last abyss]

its likely that either the damage sphere doesn't have collision enabled or the damage sphere doesn't overlap with other enemies if the others are not taking damage. Otherwise that should work completely fine

[severe geyser]

I've got it working now. It's sloppy, but it's working... take a look

now I just need to make it so it cannot damage the player

no it's still blocking

man my brain is scrambled

[trim matrix]

Hello, I need some help here.
My character get drinks something like "energy drinks" and as soon as he gets them they "disappear" so it makes him big for a while but he needs to get back to his normal size.
I don't know how exactly, any help?
Thank you.😚

[dawn gazelle]

Put this in your Third Person Character blueprint.

Drag a pin from the cast you have in your PowerCup_BP and call the "BigTimer" event - this will start the timer.

When the timer runs out, the "BigTimerEnd" event will be called - here you can reverse the mesh change you did with the item.

[trim matrix]

@dawn gazelle Oh Ok thank you very much 👍

[rose flare]

Hi guys. Any idea if it is possible to sample Level Sequence track values at specific time manually from Blueprint? What I would like to do is sample certain track for example 10 frames in the past and future from current play head position (Like TimeShift in Houdini) ?

[vapid ibex]

So the code based on converting them to strings to pass as variables will begin to fail in the build versions?

[sand shore]

yeah it easily will

unless you convert from the enum to the string to get the string you compare other enum values to

[vapid ibex]

Well this sucks

[sand shore]

you can do it, but it isn't trivial

Much easier to not rely on the string representation

basically, within a build, if you concatenate

EnumName.EnumValue - it will compare correctly

[vapid ibex]

Um, to string table you mean?

[sand shore]

but if you author a buncha switch statements or something, they'll break. maybe

[sand shore]

nah that's a localization thing

[vapid ibex]

Basically I have a list of character names that I put in the enum for ease of use. These names are actually ID handles for taking actual names out of XML file (because localization, and I do not understand how the native unreal solution is supposed to work). I pass enum user-friendly value to the function that retrieves the said entries in XML

[sand shore]

if what I'm suggesting makes no sense, just abandon the enum -> string entirely

[opal crane]

how the hell do you guys do this all day, props to the dedication

[sand shore]

either do a gameplay tag or do an enum

that is a use case for just plain strings!

you want combo box support?

[vapid ibex]

Yeah but I don't want to retype same thing over and over and over again in hundred places (Specifically - in dialogues). So if an alternative to enums that's also displayed as a drop-down list would be possible...

[sand shore]

I didn't. I also did some chores and played some games.

But I don't really have lots going on in my life besides being really good at ue

[opal crane]

the skill and experience shows mate 🤙🏾

[sand shore]

So it's nice if I can provide clever solutions or help someone get a specific thing working

[opal crane]

and its making you look godsent lmao

[sand shore]

Well, you can make a selection widget for players, and technically also yourself if you lean hard into editor utility widgets

have like a database or array and go over the entries and populate a combo box

[opal crane]

sorry to interrupt, last thing: where did you learn all your craft immutable?

[vapid ibex]

No, no players, it's for internal use and coding in a whole editor addon for such trivial task as "make a variable a dropdown list" seems like a total overkill.

[sand shore]

Ah, see, you want this for regular variables?

String table might be it, but it's not the best solution because it uses loc

tryna change casing might be awkward and I don't know how much you can script from BP

[dawn gazelle]

I'm a bit interested in this topic myself... So doing something like this is not wise?

[sand shore]

That might cook as NewEnunerator_0, Authored Name, or AuthoredName

[vapid ibex]

What's "loc"?

[sand shore]

Gameplay tag also doesn't solve casing.... though you can run a script to push the xml characters to a ini file and automatically get tags

something like characters.internal_name

[vapid ibex]

Why casing would be problem, if it'll be pulled for uses out of a single place?

[sand shore]

.... iunno but it's a really common headache

something to be aware of

[sand shore]

not having a life, googling

[opal crane]

how many years

and nah, you have a life

just a different one 👍🏾

[vapid ibex]

Enums suddenly looks a lot less useful an necessary to use.

[sand shore]

#lounge I guess; but maybe 3 yrs?

[opal crane]

much of my respect to you

[maiden meteor]

hi, noobie here
I downloaded a plugin 'Horror Engine' and now I'm having trouble with animating a character I added into the first person viewport. I can't seem to get him to play the 'running animation' while MoveForward is true

[sand shore]

Yeah, for this? Absolutely

I'd still recommend internal names fully lowercase

[vapid ibex]

In general. If they are not to be trusted to cook correctly, why not use just an int then?

[sand shore]

the values are correct at all times

just the string

And that's fine IMO

[maiden meteor]

I've added him in the viewport here

[dawn gazelle]

Trying to remember what int represents what can be a real pain in the ass if you're dealing with several different things that require different int values representing things.

[sand shore]

You could do a switch or select in the enum and pick a string

but then ... gameplay tags are much more dynamic as you can just dump stuff into an ini and open the editor and bam. Tags all set up and ready to connect in content

[vapid ibex]

I suppose I'll need to do that. A pure function that converts particular enum to strings)

[sand shore]

you could have an automated python thing adding new tags

can't do that with enums

(then, I guess I'm expecting things you might not actually need)

[vapid ibex]

I'm pretty sure you do) Those names are not for the gameplay functionality, simply to display a text in UI

[sand shore]

BP enum display names aren't meant to be fully deterministic

[sand shore]

for the player?

Well.

Map Enum -> FText lok

lol*

it'll cook and cook right

btw.

loc = localization /internationalization

aka translating the game

[vapid ibex]

Google says Ftext is a part of the unreal's horrible internal localization feature?

[sand shore]

as are string tables

[vapid ibex]

I thought string tables are a type of an asset that can be used anywhere in the game.

I quite like my solution where you just need to change the path to the xml file to change language of the game, and in the future maybe I'll even add a functionality to search for xml's in the folder to dynamically determine languages the game can use. I'm not sure that you can add a language to unreal's native system without repackaging the game

[sand shore]

@opal crane anyway. How far up the wall did you get?

@vapid ibex somewhere I missed that you were replacing a loc system

[vapid ibex]

I find Unreal's version very convoluted and hard to use. A separate menu where you need to do a lot of things to just get the list of used entries, no dynamic edit as well.

[sand shore]

I think trying to do it with an enum is clunky, better to just use a string table I guess but FText is the only thing I know of that gives you a nice editor for referencing them

[vapid ibex]

For now I think just making a function that converts enum to string via just "chose" with predetermined string values will be best for me. =) It's worse than just enum because I'll need to update two assets instead of one (enum and the function) to add a name, but that's better than nothing I guess.

[sand shore]

Editor Utility Widgets are makeable in UMG only and can do a lot out of the box. It's probably not as hard as you think to make an editor to author content string refs but it would be added friction because it wouldn't be integrated into the details

Anyway. I think all avenues have been explored. good luck

[vapid ibex]

Thanks!

[dawn gazelle]

I really thought I was being clever... XD

[vapid ibex]

It seems this part will always return only the current state of StatIndex, so why the chose node?

[dawn gazelle]

There's a bit of magic happening. I'm using just a byte on the stat index, and each of these are converting that byte to a specific enum.

and based on that enum, the string output would be different depending on the stat type that was fed in.

It was basically a way I could get the name without having to specifically define which enum was being used. I just needed the value of the enum, and based on the stat type it would output the appropriate text.

[spark steppe]

which BP is suitable for doing game initialization stuff, like loading global user audio settings, etc.?

[dawn gazelle]

Probably game instance?

[plucky copper]

game instance sounds about right

[spark steppe]

where do i find that one? xD

it's not the gamemode bp, right?

[plucky copper]

you can make one

[dawn gazelle]

Correct. You'll need to create one, and then it has to be defined in your project settings as well.

[plucky copper]

yeah its not the same as gamemode

[spark steppe]

ohhh, that one, thank you

yea i have a customGameInstance already, gotcha

[spark steppe]

thanks guys

it's actually doing already some loading stuff 😄 my projects is growing over my head

[plucky copper]

lol

good luck

[novel phoenix]

https://docs.unrealengine.com/en-US/BlueprintAPI/Utilities/GetAttachedActors/index.html

Reset array? What does it do?

[earnest tangle]

Probably clears the array

Looks like it yeah - if you don't set it to true, it won't clear out the contents of the array, and it'll just add the attached actors into whatever's already in the array

[strange finch]

quick question, how to adjust distz in path following? my character cannot finish moving

[trim matrix]

Hello, I need more help here.
My character get drinks something like "energy drinks" and as soon as he gets them they "disappear" so it makes him big for a while but he needs to get back to his normal size.
I'm confused
I don't know how exactly, any help?
Thank you.😚

[trim matrix]

@trim matrix and BigTimerEnd where should this be connected?
Can you show me a sample on Delay node?

@trim matrix Something like that?

@trim matrix These must have a common targer?
That doesn't seem to work.

@trim matrix It still doesn't seem to work while there's no error.

@trim matrix Oh okay then I understand.
If you're in the mood to help me more and explain, please send friend request.
Thank you.

[tight cobalt]

Hi I was wondering which system is better to use for things like cahracter object climb, moving along the edge, jumping from one cliff to other etc..

Should I use character blueprint and then create custom events/conditions and then move the capsule while playing animation,

Or

Should i do it through the state machine/anim_bp

Or both?

[mint comet]

hey guys, just wanted to ask, how are dot products usually used in BPs?

[keen seal]

Hi, I'm trying to make the Arrow1 rotate towards the GunPickUp.
Maybe I'm accessing it wrong? All the pick ups are children of that blueprint, I want to access whatever one is currently spawned in the level

[maiden wadi]

@mint comet Not really sure what you're asking? All a DotProduct does is compare how closely two directional vectors are pointing in relation to one another.

[mint comet]

yeah was reading about it and i was wondering how it'd be used or what it would be used for

one of which i thought would maybe be field of vision for AIs or something

[burnt berry]

Hey does anyone know why my custom SceneComponent ticks even when the game is not playing?

[maiden wadi]

There are a lot of uses for it. Just depends on the application type. Camera stuff is very common with it. Another one is checking the dot product of UpVector vs a trace or sweep movement hit result to see if they can be considerd a "floor"

For instance. If the sweep hit result's surface vector dot product to UpVector(Which is 0,0,1) is < 0.5 or something, it might mean that you wouldn't want the object to be able to be stationary on that point because it's too steep of a slope.

[mint comet]

ah I see

[maiden wadi]

Maybe you want to create a penetration/ricochet system? If the bullet path is perpendicular enough to the wall, try to penetrate, otherwise make it ricochet. You can easily test that with the hit location's surface normal dot product to the inverse of the bullet path.

[mint comet]

oh, that makes a lot more sense. thanks for the insight

[twilit heath]

vector reflected of the surface, for example, is IncomingVector - 2 * IncomingVector DOT ImpactNormal

[mint comet]

thanks as well for the add-on Zlo

[tough halo]

hihi all!
I use realtime mocap in AnimBP. But I want to smooth a bit mocap data in order to remove unnecessary noise in the mocap data.
With the ARKit Iphone, everything is simple. You take the data, break it down into coordinates, put it together and have data that you can smoothly smooth out.
The Wrnch mocap that I am currently using does not give me its date so easily. And most likely it won't.

The idea is this. I want to refer to the data of the skeleton (which is already working with the mocap data) and smooth them out.
But here's how to refer to the skeleton of the same AnimBP in the event graph?

[maiden wadi]

@tough halo You'll probably get better help with that in #animation

@keen seal The Owner of a gun is usually a Character or Pawn. If you have set that GunActor pointer correctly, I'm fairly certain that is what you need to get the world location of for the look at rotation, not it's Owner.

[coral canyon]

Hi everyone, with UE v4.26, is there a secret to updating a Widget Component during runtime when the underlying Widget updates? Trying everything I can find. The on screen widget is updating, but component is not. Seems the Widget Component only references the class and not the instance

[maiden wadi]

@coral canyon What are you needing the component to do?

[coral canyon]

@maiden wadi The component is referencing an engine plugin class for displaying player stats data in graph form on screen, and I'm trying to display the data as/on a mesh. The component is referencing a widget blueprint

[maiden wadi]

Generally speaking, the widget will have no ability to talk to the component. You could get around this by making a base class for the widgets and having the component update the widget with a pointer to itself.

[coral canyon]

Thanks for the insight into it @maiden wadi. I see a Widget Component references a widget class, but how does one initialize the component to allow for updates? Construct node seems incompatible. Is this where a base class comes into the mix? edit: noticed i can make the component the owner of construct node

[spice sequoia]

I am having some problems while using 'Get Actor' at Begin Play in a BP - Sometimes it is coming back null - I assume it is because it is referencing an actor that does not exist yet (even though the actor is there on Begin Play) - I can test this because if I add a delay it never returns a Null and works. What is the proper way to loop 'get actor' until it finds one. Is using a 'While Loop' combined with an 'Is Valid' node an appropriate way to do this? So it keeps looping until it finds the actor. Should I be doing this across the board with any BP's referencing another actor?

[keen seal]

I'm trying to access the gunpickup actor, not the gunactor.

[void cobalt]

does anyone know why my enemies dont move after i launch my project through a main menu level?

i have 2 levels, 1 is the lobby menu

and when u press host game it launches the world

when i play straight up with the world, it works fine

but when i launch it thru the lobby, the AI doesnt move

[keen seal]

Make sure that Auto Possess AI is set to this.

[trim matrix]

Hello! I need some help.
Here the objects spawn continuously what I could do to spawn very thinly like one every 3 minutes.

[summer bolt]

Won't setting it to 0 scale make it like existent

Use a timer by event or delay

[keen seal]

Set a timer by event

[summer bolt]

Yeah

Like what he said

With a screenshot

[trim matrix]

Thank you guys I'm done with this problem I fix it timer by event its done

[summer bolt]

👍

[trim matrix]

About this

[void cobalt]

where do i find that setting

ah nvm i found it

[keen seal]

Get your AI character blueprint.
The very top option

[void cobalt]

it didnt work

😦

they still stand still

[keen seal]

Maybe it's a problem with the AI?
Does the character start moving on BeginPlay?

[void cobalt]

no, it starts moving on pawn sensing

this is all i have for the ai part pretty much

[violet flax]

Quick Question, when i use "For Each Loop" and i use an "Equal" with a "Branch", and lets say i have 1,2,3,4,5 in my Array and im looking for 4. Should my Branch that i have after For Each Loop got out False three times and then True?

[earnest tangle]

If you mean the branch is in the loop body, then yes

I mean that's literally the whole point of the loop so I'm not quite sure if there's something else you were looking for with that question

[violet flax]

I'm sitting here for one hour to find my mistake and shortly after asking here i find it. I had a Branch after "For Each Loop" and when it was False i wanted it to check the second Array Index wit another Branch, but that wouldn't work because im still in the same "first" Loop, so the second Branch would check again with the First Index from my Array and not the Second.

[earnest tangle]

Yeah it would indeed do that if you use the same index variable

[opal crane]

anybody willing to tutor me on this game im making? (im comfortable with ue4 somewhat but only know super basic things in blueprint)

[spark steppe]

you are aware that you can get any item by it's array index?

[warm epoch]

hi, is there a way to check all the blueprints that implement an interface? (please ping me if you respond)

[burnt nest]

Actors have "Get all Actors with Interface", Widgets have "Get all Widgets with Interface", etc.

[warm epoch]

sorry i should have specified it better, i want to see the blueprints in the editor, though getting them with code is also useful

[burnt nest]

Then right click the interface in the content browser and click on reference viewer and it'll show you every blueprint that depends on it / uses it 🙂

[warm epoch]

nice thanks

[trim matrix]

Hello! I need some help.
Here the objects spawn continuously what I could do to spawn very thinly like one every 3 minutes.

[burnt nest]

Someone already told you how. I can help if you needed more info.

[long schooner]

Hi, is there a way to disable footsteps sound when the character speed is 0?

I have an issue with the blend animations, I though I can just hard code that you can't hear that sound if the speed=0

[icy dragon]

I guess creating your own For Each loop with delay will work.
It's a bit hacky though.

[burnt nest]

There is, and it depends on how you've implemented it. I think you could do it through anim notifies, then you could make the sound play when the foot hits the ground in the animation, which would automatically only happen if you're moving.

[long schooner]

Let me show you what I did

https://gyazo.com/d66f3bf34ed7f18669a3718f00d7d699

I have that animations in a blend

so, the issue is that the blend is not clean enough, cuz it need a 0.3 interpolation time to look good

and that interpolations, is making me that sound issue

[icy dragon]

Have you tried creating anim notify and feed the speed inside the BP?
Also, you may want to give some threshold so that the footstep sound won't trigger on Speed less than, say, 10 instead of exactly equal to 0.

[long schooner]

I haven't cuz I have no idea about programing stuff, thanks, I will try it

[sand shore]

For loop with delay is a common macro, should be standard IMO.

The compiler ought to have a mode to detect delays in loops and sequences to warn people off

because the delay doesn't cause them to wait or anything

and people get caught in a noob trap

[cyan surge]

I don't understand Lmao, for the record it doesn't trigger the breakpoint!

It does call the set percentage function aswell

And well this is all code from inside the UI, aswell

[icy dragon]

Maybe try validate Character REF CPP first?
The error message doesn't refer to Health Bar variable.

[cyan surge]

It does, and the character is valid, I've checked that

[stray island]

Anyone tried poseable mesh component before?

And is it really an outdated useless feature

[cyan surge]

@icy dragon you can see it's valid,

And if that's not good enough for you, that's the object it self

[icy dragon]

But the IsValid in your screenshot checks for Health Bar as opposed to the Character Ref CPP.
The error must've been signify that the Set Percent node tries to get the health value, but the owner isn't valid.

Just try IsValid on Character Ref CPP before HealthBar. Report back if the error persist.

[cyan surge]

@icy dragon Are you happy now?

[icy dragon]

Yes.

How about the error message?

[cyan surge]

I posted it first, might be a bit small so I don't blame you for missing it

[icy dragon]

I don't have myopia, thank you very much.

[cyan surge]

Your so aggressive man, chill please 🙂

[icy dragon]

I don't see any reference to Health Bar, and it pointed to Character Ref CPP.

[cyan surge]

@icy dragon Thanks for your help 🙂

[sudden spear]

Hi there 🙂
Does anybody know if there is a way to detect if one triggervolume overlap's with another?

[ebon rune]

On NavPreviewing: Wondering if there is an exposed way to get the nav mesh edges used by the editor viewport on show navigation. When you disable translucency it gives a new view I wanted to take a capture of but the radius for the draw on those edges cuts short of where I want it.

So far from what I can see you can't adjust this radius in some sort of settings config, so now I'm just trying to see how I can hijack whatever implementation is avail on nav mesh to do my own.

https://i.imgur.com/bkJOOiC.png

[amber nova]

hi there , so i followed a tutorial on how to create enemy ai but the tutorial , they just used the same character. mesh so i was wondering , is there a way for a 2 different character mesh which are rigged to the same rig to use the same animation blueprint or do i have to redo everything i setup in the animation blueprint

[earnest matrix]

#animation

[earnest tangle]

as long as they use the same skeleton that should be possible

[maiden meteor]

can someone assist me with a blueprint? I am noob, trying to learn on already made template

[final snow]

Hi, I am brand new to the unreal engine and am trying to make an ability system using blueprints. I’ve been following these videos https://www.youtube.com/watch?v=I6qeD6PIpgU but have ran into a roadblock that I don’t know how to fix.
When I press an ability on the quickbar, the castbar shows up, but the progressbar on it does not show progress, and starts at 100% complete. The screenshot provided is (maybe?) where the problem should be, but honestly I’m quite lost since I’ve been following the video exactly.

[burnt nest]

Shouldn't be any different than an actor overlapping a trigger volume, so long as their collision settings are set to react to overlap to each other's types. But if an object spawns inside of a trigger volume, which would be the case too if you place two trigger volumes within each other, I don't think overlap will trigger. In that case you'd probably have to do some sort of hack, like do a box trace on Begin Play or something.

[robust condor]

I wrote this code to move the object to the hand but there is a problem. The object moves to the correct location but when you also change the object's rotation to match with the hand, it rotates wrong. This is probably because im rotating the actor along it pivot point. Is there a way to rotate the actor along a custom pivot, determent by a vector?

[sudden spear]

That's interesting! Thanks 🙂

[odd jackal]

I am attempting to set relative transform of a skeletons bone

unfortunately it only lets me select objects like a camera, is there any way to select an objects bone?

[solar raptor]

no

[void oyster]

If you can't find a node when dragging off of your Skeletal Mesh (I'm unsure myself), this might help:

https://docs.unrealengine.com/en-US/AnimatingObjects/SkeletalMeshAnimation/NodeReference/SkeletalControls/TransformBone/index.html

[earnest matrix]

Is there an easy way to do "static" singleton components where I can just get a quick reference to it without caching it on everything

Currently I just have a variable I store the reference into and populate it when the game starts

[odd jackal]

@void oyster I can't really make it work, but I'll keep trying

[void oyster]

https://youtu.be/KxGRhd_iWuE

[novel phoenix]

Microaggression!

[wispy fiber]

if I have an input mapping for the 'A' key and an input mapping for 'CTRL + A', how can I prevent the A event from firing when they player pressed CTRL+A? Is the only way to just set some state variable to true on the CTRL+A event and check it when A is pressed?

[barren salmon]

i have an issue where two bits of my code have split off however i have no idea how i could combine them back into one is there a way to have a function have two exec pins?

[earnest tangle]

There is a node called sequence which does that

[soft halo]

Hi, any one knows a way to Make player jump automatically on land if jump button was pressed in air within 0.2 sec before landing.

[azure knot]

@soft halo since a jump can be short or long depending on where the player jumps from and lands, I wouldn't try to do it by timing, you're better off probably jumping > firing a raycast down until it hits ground and measuring the length of the ray and when the length of the ray is below some threshold check for jump input and store it in a bool or something then on land/grounded read that bool and if so then force another jump.

[barren salmon]

i tried to do that but that does not work

i thought maybe i could try and use a cast instead

however i cant use get controlled pawn

or stuff like that which is now the only thing stopping me

this is the error i am receiving now so my only option is to try and fix this cast error for my code to work

[keen goblet]

@soft halo You could do this with a Gate that starts closed. When the player presses the jump button while in the air, Open the gate, then delay 0.2s, then Close the gate. When the player lands, Enter the gate and call your Jump script off of the gate's Exit pin

Conceptually, this is you having the player pawn always try to do an automatic landing jump, which you can allow (by opening the gate) or disallow (by closing the gate) whenever you want

[soft halo]

thanks

[dawn gazelle]

It's not very clear what you're asking. You can join two exec paths like you've done on the return node, or on any other node. You can also use reroute nodes.

[barren salmon]

my issue is that when i do that it will not excute any code

for the fucntion

ik i can do it but doesnt work on UMG return node it just refuses to run unless sparate

what i mean is if i were to do that

it wont ever excute but if i break it a part and only run one

it does

hence my problem hope that helps to explain my issue more

[earnest tangle]

That makes no sense. It should work when it's connected 🤔

Are you sure the problem isn't somewhere else in the code? Like where this function is being called from?

[barren salmon]

well i have tried it but it fails and i know where it is being called from is working

[earnest tangle]

Set a breakpoint on the two nodes when it's connected and see if they get triggered

They most definitely should

[barren salmon]

ok so i've added it ima test now

[barren salmon]

so the break point passed

hm let me re add my orignal code then real quick

wont take too long

so this is werid#

that other bug of it not showing it up when i walk over the collsion box zone is a new one and i know how to fix that still talking about getting it to work with the two branches thing

[atomic prairie]

Hey! I'm using a 4.22 version of UE4 but i need a similar node of ''Get Actor Of Class'', someone've an idea? I need to target a BP in my ThirdPersonCharacterBP

[barren salmon]

get all actors of class then just get a copy

if that is what you need

[atomic prairie]

With Get All Actors of Class i cant target

[barren salmon]

nvm my code is working now

[barren salmon]

oof was a simple change of the bool from true to false but me panicking meant i overcomplicated things again

my bad

[atomic prairie]

Thx!

You gave me the solution with your resolution haha

[dawn gazelle]

Just a heads up Get All Actors of Class or Get Actor of Class are considered computationally heavy nodes - they get all the actors in the scene and loop through them checking each one if they are the appropriate class, with the "Get Actor of Class" stopping at the first one it finds, where "Get All Actors of Class" goes through all of them. It's ok if you only have a few actors in your scene, but once you start adding more, you could end up looping through thousands of actors, and it gets even worse if you're using those nodes within a loop or on tick.

[atomic prairie]

Thanks

But is there another node that does the same thing without doing so many loops?

[dawn gazelle]

You could manually spawn the camera BP where you need it, and when doing so, you get the reference to it.

As an example.

[hearty meadow]

@atomic prairie you can implement that yourself. Make the class add itself to a globally accessible array or set on BeginPlay. And don't forget to remove it on EndPlay.

[dawn gazelle]

You can have the BP reference something on its begin play (game mode, game state, player controller, whatever) and have it pass its reference to that object.

Lots of different ways one can get a reference to something.

[wispy fiber]

Anyone know why the input release event doesn't work for CTRL + Key input actions? For example, if my input actual is CTRL + A, it only sends the release event if I release A before CTRL, not the other way around

[native ice]

Hello quick question what would be a good way to implement a turn system that takes all the current units and displays their turn order i would also like to make it dynamic so that a units turn changes based on what they did in their turn

[dawn gazelle]

Probably just keep track of which actor's turn it is in an array. Then you can manipulate where actors are within the array and when a turn starts you just get the actor at index 0, and when it ends, you remove them from index 0 and add them to the array again which will add them to the end.

Then using other array functions you can manipulate where any actor is within the array.

[native ice]

ok should i make the array its own actor or should i ad it in the lvl bp?

[dawn gazelle]

Probably have it within game state

[chrome locust]

Hey,

When you change something inside a user-created widget (eg. custom button template ) & compile
It doesn't change that widget anywhere unless you replace it with a new one, or you restart the engine.

I don't know if it's a known bug or ...? UE 4.26.2

[vapid ibex]

You're looking for this?

It works with arrays too, suddenly. 0_o

Well yeah, you plop the animation you want to play in there, duh

Animations don't show up in the drop down menu?

weird, they show up for me, for every skeleton I have in the game

Something like that I guess?

Well with forloop you don't need arrays anymore, you need to get the mesh component of each actor anyway

[surreal swallow]

This is cool as hell

[severe turret]

bear in mind, get all actors of class isn't suggested for use too often. You can get away with it here and there but it's considered slow, so using it in a "preload" situation is something to think about. ie. first thing on BeginPlay before game logic truly kicks off.

[faint condor]

you do that in a function in your character or controller
then u get the mesh from the actor
and from your widget you call that function ..

@iron vale

because there was only 1 mesh?

are they actors?

[iron vale]

what i do now

[faint condor]

hmmm
so you selected get all actors of class (character) ?

bruh why in the widget?

i did actors instead of characters and its working fine...

i made that function in my player controller then i get player controller and call it from umg widget

[ember veldt]

I believe any function call to a class works with arrays of that class, but you have to do it from a single object first. Same with interface messages!

[mint comet]

heyo, can i ask for help understanding event dispatchers? having a tough time wrapping my head around it

[dusky harness]

Can someone quickly help me? I can't remember the name of the BP function that combines 2 text variable into one text

[earnest shard]

@dusky harness append ?

[dusky harness]

That works for strings but i can work with that. Thank you

[sand shore]

if it is text, Format Text

[dusky harness]

Oh

Thank you as well

[sand shore]

have to use a special syntax

{}{}

or {a}{b}

it won't make pins on its own

[dusky harness]

Is that ok if i just convert text to strings, append them and convert back the result?

[sand shore]

you don't have to if you do my suggestion

it is a cool node to know how to use

[dawn gazelle]

Isn't using text generally better for anything being displayed? For simplicity of localization?

[sand shore]

But. It is okay to make a string if you don't want to translate your game OR if the text you make is never stored as a source text

because it is runtime, if you translate the original strings it should be fine... until a culture appends in the opposite order or something

[dusky harness]

I guess im going to watch some Format Text tutorials

Thank you for your help

[dawn gazelle]

An event dispatcher allows you to set up an event that other instances of blueprints can bind to. When you call the event dispatcher, any active instance of blueprints that are bound to the dispatcher will fire their bound event.

Example:
I have a widget that contains only a button. In that widget, I've set up an event dispatcher that provides data that is stored in the widget. When the button is clicked, I call the event dispatcher and feed the data from the widget through the event dispatcher.

I have another widget that contains that widget, and in it I bind to the event dispatcher, and I can then do what I want from when that event is triggered.

[sand shore]

What is nice about that kinda setup, is you can dynamically spawn buttons and bind on clicked

makes it possible for modals to work well, but any number of setups benefit

https://www.youtube.com/watch?v=EM_HYqQdToE is the usual recommendation

[mortal cradle]

Is there any difference for the engine when it comes to naming the variables/ events/ functions/ macros? If I name something "Function_X", "Function X", "FunctionX" etc, is it all the same as long as the engine accepts the name?

[sand shore]

You could make all of those and they would all be unique names but display basically identically

Not sure if you'd run into any issues later though.

If you can package the game and all 3 work still, then they're all distinct even in shipping

[mortal cradle]

thank you

[severe geyser]

hey folks, hope all is well. I am looking to use a progress bar as a 2 minute timer on my main UI. Is there a simple way to do this?

[severe geyser]

❤️

[smoky nacelle]

I just managed some more performance out of the foreach node. So I was wondering,
is there's a way to replace a node project wide, or if I should just to replace the one in standard macros?

[summer bolt]

I wanna make a tower defense game and I think I can make most of it but I don't have a clue about making a placing system

Does anyone have some pointees

[gentle urchin]

Curious how you managed that Azure

[smoky nacelle]

Ah, so this is what I've got going on now.
The only real difference is that I've done away with the the second local int and moved Assign to false with the -1

Pretty much the only thing that changes performance is it not having to hit Assign on that second int every loop.
But that was still about 15% in PIE on an empty loop for 500 iterations, gap didn't change much with more

[finite flax]

what's wrong with this? it's supposed to be a looping animation but after one loop, ,it just teleports to timeline 1 and only plays that one every second

[smoky nacelle]

A lot of assumptions have to be made here on my part since I'm not sure how you have the animation set up
But if you're using loop check box in the timeline, it's most likely because you have that delay after timeline 0 that fires off after a second
and keeps repeating since you're going into Play from Start on the timeline

[finite flax]

this is timeline 1

the other one is just the reverse

[finite flax]

where is that loop checkbox?

oh nvm'

no, that's not checked

[smoky nacelle]

Ya found that dang quick. Anyway, that should be a pretty big boon to ya, now you could use just one timeline and mirror it if the needs this simple

[finite flax]

wdym?

yeah my first solution was just playing the first animation backwards but that was even snappier

like this

[smoky nacelle]

With the ramp like this you should be fine with a single loop since when it loops it's the same value

[finite flax]

this is what it does atm with the reverse animation

[finite flax]

hmm ok I will try

[smoky nacelle]

or did you want it to go back in forth?

[finite flax]

Yeah I want it to go back and forth

[finite flax]

tried it, it's also just snapping

oh no nvm

it works now

ty

uhm now when I place it in the level it teleports to the 0,0 of the level

how do I fix that

[smoky nacelle]

🤔 it's most likely not this that's doing it since it's only the relative location being set here, check the construction script

[finite flax]

that's empty

no idea why it's happening

[smoky nacelle]

Also you can remove that delay since it shouldn't need it anymore with looping but you'll want to make sure you don't have any extra length in the timeline.
Back to the problem at hand though

Do you have any actors in the world, or things in the level BP that influence actor position?

[finite flax]

no I don't

with all my other obstacle it just works

[smoky nacelle]

Is it only when you place it it's at 0,0 but you can still drag it from there?

[finite flax]

btw, without the delay it just stay's still so I do need it I'm prtty sure

[finite flax]

when I try do drag it during play it instantly teleports back

[smoky nacelle]

it should just loop so long as the length in the timeline is set to 2

sounds like you may have something on tick somewhere then

[finite flax]

nope I only have this

there's no tick

[smoky nacelle]

do you mean "during play" that the game is running?

[finite flax]

yes

[smoky nacelle]

Unless you've got a something fancy to help, you can't do that by default. Also actors placed mid play don't stick

[finite flax]

I just ejected and tried to drag it, not so fancy....

When I unplug the animation, it does stay in it's original position

[trim matrix]

Hello, I started a tutorial and encountered a Accessed None trying to read property PlayerCameraRef (I detailled everything here: https://answers.unrealengine.com/questions/1026454/accessed-none-trying-to-read-property-playercamera.html)
I think it's a very basic n00b issue, so if you can take a look and give me a clue that would be great 🙂 Thanks guys !

Basically getPlayerPawn does not return anything

[smoky nacelle]

Can't seem to open the link, getting access denied for some reason. But this used to be problem I used to have too
as you most likely know it only happens when there isn't something to reference.
So if you have PlayerCameraRef set after a delay node and trying to use it somewhere else on event begin play you'll get this

[trim matrix]

I think I set it before trying to access it:

[smoky nacelle]

as input (especially axis mappings) may be a bit special, give me minute to test this out

[round merlin]

axis mappings run on tick

[round merlin]

i dont think you need to cast to the player camera. that should be something accessible by default

either that or the camera manager

[smoky nacelle]

OH

you're casting you're player pawn as the camera

[round merlin]

please keep in mind that i have no idea what you are trying to do. anyway, the controller should have access to the "get camera manager" function. maybe off of that you could cast to the player camera

i think

[smoky nacelle]

Also my bad, I was thinking the axis mapping tick was like the animation BP tick which it is not so that not the problem

Also just to be clear is that failure print string you have showing up?

[trim matrix]

I'm following this tutorial atm: https://www.youtube.com/watch?v=MpKXKr9alqY&list=PLDnygpcOYwFW2XtNyiandrLDG__OAZs7Q&index=3

So we create a playerCamera ( our topdown, controllable camera) and add a script to move it on the axis

and we set it up as player controller in the configs:

[smoky nacelle]

the player pawn isn't the player camera but the top down character so get player pawn should give that if I'm not mistaken

give me a minute to get look over the video a bit more

yeah you should change the default pawn to the player camera pawn and it should be right on the money

[trim matrix]

the UE 101 error x) thanks a lot for your help !

it's working fine now 🙂

[smoky nacelle]

Great to hear!

[livid vessel]

I don't know if this might be a bug, but when I use set static mesh the new one is used, but the old one is not overwritten and remains 😇

[maiden wadi]

Sounds like you have multiple of the same static mesh there?

[charred breach]

Hello! I was wondering if there is a way to bypass this:

I mean the player need to install it so my game can run. And I want to run immediately. (The player don't have to install it)

[livid vessel]

No only one and I dont spawn a new one

[maiden wadi]

Dunno without seeing what you're doing then. Haven't encountered that myself. Although after seeing the static mesh component source code, it somehow would not surprise me.

[charred breach]

What to turn on or off?

@trim matrix

ok

[livid vessel]

This setup should override the existing mesh but it dont

[maiden wadi]

And you're certain that you only have one actor at the location?

One actor with one mesh component. No doubles on either? If you can debug that from your world outliner, or some overlap tests, I'd consider bug reporting it.

[fading raptor]

Anyone know how to have a smooth transition between these animations?

[maiden wadi]

Sounds like something you might use a montage for? Play the montage, then let it blend back into the other animation.

[fading raptor]

it doesnt let me overlap animations in animmontage

[fading raptor]

dang, i hoped i wouldnt have to do that cuz its annoying, ty though!

[unique hollow]

how would I change a specific value in a map?

I have this

but now I want to set the value of the string I found

ty

[calm gull]

I'm getting a strange error (see picture). I thought the IsValid node was supposed to help me with this case, not cause this error. Any idea what might be wrong? UE_4.26.1

[dark crow]

Means you're trying to access it while it's getting Destroyed

[calm gull]

But I'm doing a "IsValid"-check on it

[dark crow]

Show

[dark crow]

Well ofc

You're checking if it's Valid while it's getting Destroyed

Would still throw the error

[calm gull]

Care to enlighten me on how to prevent this?

[dark crow]

Is the Destroy Actor right before the Save Current Tool?

[calm gull]

It is destroyed in a different blueprint, so potentially, yes

[dark crow]

Could be that it's trying to check for it in the same frame as it's getting destroyed

[calm gull]

From the IsValid implementation:

[dark crow]

Try to convert Equiped Tool into a Validate Get

See if it makes any difference

[earnest tangle]

ShareX is also very handy for screenshots and short video clip recordings :)

[calm gull]

That seems to work perfectly. Thanks! 🙂

[little cosmos]

Hi! If I want to have Next and Previous buttons in my Widget to display information.. Just cycle through images, how should I go about doing it? Different widgets that open seems like the wrong way, what's the trick here?

[spring cosmos]

Widget switcher

You can use it to switch between panels in a widget.

https://www.youtube.com/watch?v=7Mbe-hQl0Yg

[spring cosmos]

this should help you

[little cosmos]

Interesting, Thanks!

[brittle spade]

how can I create a widget from the engine? like image?

[earnest tangle]

you need to use Construct Object for those

if you mean you want to create one at runtime via BP

[brittle spade]

yea, thanks

[drifting socket]

Hi, im having trouble with projectiles and scene root. Im trying to make a projectile but if i keep the default scene root then the projectli just goes through the floor and if i override it with the projectile mesh itself then i cant edit the shape of it

[little cosmos]

Trying to check if widget is visible and close it if yes, this isn't working (From PlayerController)

[arctic sapphire]

Hello, I'm currently trying to build a little inventory system. When I pick up, lets say, "Item 1", it gets added to the inventory like it should be. When I add another "Item 1", it adds 1 to the Item Count of that item and does not add another one to the Inventory, as it should. If I now pick up "Item 2", a different item, it gets added to the Inventory aswell, as it should. When im now picking up "Item 2" for the second time, it does not find the already exisiting item of that in the array and behaves like its a new Item thats not in the inventory yet. Why is it doing that? Can someone spot the problem in the blueprint? If there are any questions, just let me know. I hope you can help!

[mystic aspen]

Hiya, i'm trying to create an arcade feeling jeep vehicle, I've been tweaking the 4w vehicle movement component and Tyre settings for over 6 hours and just can't get it to feel arcady, I want it to be very grippy, Anyone here that has some experience using the vehicle component that could help me out ?

[coral canyon]

Hi fam, I hope everyone is doing well today. I'm trying to replicate this glass shader for chromatic abberation, but stuck at an undefined material function named ping-pong used to "ping-pong the screen-space UVs to stop them going out of range" https://forums.unrealengine.com/t/simple-refraction-with-chromatic-aberration/71065/4. Any tips? I'm still really new

[keen pendant]

Is there another way to animate a material parameter over time in a blueprint besides using a timeline node? Its been pointed out to me that the update tick of a timeline node will also affect the spawn rate of niagara systems which come afterwards.

[white field]

are cables cheaper than skeletal physics animations with/out collisions?

[unique hollow]

so I have this child actor called "Weapon"

it's class is a weapon BP I made for this

and it has a variable called promptly "Ammo"

is there anyway I could retrieve it and set it through my player class?

tried that before and it was really wack in many ways

bugs that should never happen

I'll do without it somehow

oh boy, the bugs were plentiful, like, if I tried to spawn in with a weapon, it'd sometimes spawn in with absolutely 0 ammo for no reason

completely random and happened for no reason

I don't remember cause I scrapped it in favor of something hopefully cleaner

https://cdn.discordapp.com/attachments/792603380820344844/802830814559600660/unknown.png

I did it like this

[coarse sigil]

if you create a blueprint project in UE4 can you add C++ to it or should you instead make a C++ project and add blue prints, or is it that you should keep projects separate entirely?

[unique hollow]

It's already set to something by default

[sharp sigil]

Hello good people. I am working on a grid-based system where I spawn tiles which are essentially blocks which are actors. Currently, I am trying to spawn tile actors based on a list of coordinates I give to a separate tilemanager actor. Currently, I am trying to spawn these actors from the construction script which isn't working. Should I instead make these actors a child, or a component of my tilemanager? Thanks in advance

I'd prefer to have them in the editor because I want to work on the layout

[ember veldt]

A cone trace with a distance sort would be a quick and dirty solution.

[sharp sigil]

I'm afraid I don't understand

[maiden wadi]

@swift pewter Could be mistaken, but that looks like a simple SphereOverlapsActors with the baseclass of your enemies. Then remove anything that doesn't have a dot product of > 0. Then distance check and return the closest.

Get the unit direction from the blue dot on your drawing to the red dot. Compare the dot product of that to the blue dot's facing direction. remove if <=0. That makes sure that the array no longer contains anything that is behind the blue dot's facing.

You can do == Rotators for that and input half of the degrees for it. DotProduct is 1 to -1

For instance, both of these should return roughly the same thing.

[sharp sigil]

Can I make a perlin noise map in blueprint and use it? I'd like to map the intensity to offset the Z location of actors in a coordinate space

[fast orchid]

I create an actor when the game starts. and now for some reason my main character ( third person character ) isn't being possessed when the game starts. here is my code

[ember veldt]

You're trying to get the controller of the actor you're trying to possess it looks like, not the actual player controller the player uses

[tough ocean]

Someone, plz tell me - why velocity resets when i set new max walk speed

[swift pewter]

Btw, can this also be done with AIPerception? Instead of SphereOverlapsActors

[coral canyon]

I'm looking for messages I can answer to help out, but I'm still very new

[wild moth]

Hello,
Let's say that I have an actor component acting as a UnitsManager, and a Unit actor. Would it be better to put things like static data variables (Min-Max of Energy for example) in the Manager? and CurrentEnergy in the Unit actor?

[maiden wadi]

@swift pewter Should be able to do it with anything, as long as you have the target's location and the users rotation/location.

[ember veldt]

Variables should reside in the actor or component they are relevant to in most cases

[wild moth]

It is a global constant variable, that is why I'm thinking that it is best suited in a single instance which can be accessed by all actors + UI

[maiden wadi]

Possibly. It's not the cheapest method. An array of enemies to query is pretty cheap.

[ember veldt]

Perhaps a data asset might be more suited to this role for global constants. It should be easier to access as well

Sphere overlaps are not terribly expensive afiak. Its best to profile it and see how much it eats up. Traces i know are dirt cheap though. The logic of sorting will probably end up being the most expensive part

[wild moth]

I will have a look, thanks :)

[drowsy jetty]

Hi everyone. How lock camera rotation around specific axis ?

[quaint bough]

Is there a easy way to make Matrices (1x2, 2x2, 2x1) ? I dont understand what the make matrix node does because the documentation is legit non existent and i find no examples for blueprint

[soft peak]

i am dumb ^^
how can i "reuse" the "exec" of "InputAxis Turn"?
once i used it in "2", i cannot use it in "3" (because "2" does loose it again)
i think its a logic failure i have in the understanding

[gentle urchin]

Either do a sequence, or continue from the first branch (both false and true)

[soft peak]

sequence node?

oh yeah 😄

just in time @gentle urchin thanks alot!

[gentle urchin]

Npnp

[sharp sigil]

How do I select a child actor in the editor viewport?

It just selects the parent

[burnt nest]

Click on it in the list in the World Outliner? If it doesn't allow you to select it it's probably part of a group or something.

[sharp sigil]

Yeah it automatically just goes to the parent

[burnt nest]

Then my guess is they are grouped. 🙂

[hollow jasper]

Hi, I'm trying tutorial. but i dont know how to create this set node.

[gritty elm]

@hollow jasper right click on vertices and then click promote to variable

here is first method

and this is the second method

[soft peak]

How to check a boolean during gameplay?

[hollow jasper]

it works, Thanks a lot !

[gritty elm]

what you mean exact?

do you want to read value of bool?

ok, you need a node called "Branch" @soft peak

[soft peak]

i try to explain what i try to realize... 😄

[gritty elm]

this is the way you can do check using bool

my bool variable is a type of bool variable, if it's value is false, the false statement will be executed

if true then true statement will be executed

[soft peak]

is there a event which runs permanently? (for the "exec" pin?)

[gritty elm]

so you want to use an event that keep running?

[soft peak]

YES, thanks! that was what i am looking for 😄

[gritty elm]

Yes you can use event called event tick, if you want to check the specific thing per frame, so the event will continuously run to check status

like this

[soft peak]

"event tick" that sounds good! thanks alot

[gritty elm]

sure

[restive dagger]

https://gyazo.com/b4be4058cf420169edc23ac2008be6e7 yo

Anyone knows why it executes the false even tho the variable is true?

[soft peak]

i am so sorry, as a programmer, blue prints feels so weird ^^

how would you compare two booleans?

i need to check:
is "Val1" true AND "Val2" false

[gritty elm]

@restive dagger are you setting the "level 1" variables to false somewhere?

[restive dagger]

yes when it ends overlap

[gritty elm]

yes so that's why it become false

try to add breakpoint where you are setting it to false

and check if it is setting to false

[restive dagger]

What do u mean,

nvm

[gritty elm]

@soft peak this is answer to your question.

use equal or comparison operator

[dawn gazelle]

Don't need to do it that way. logical AND requires true statements.

[gritty elm]

if we do in c++, it will look like this :

{ 
// do stuff 
}
else
{ // if it is false
}```

[dawn gazelle]

or if you do it more efficiently

if (val1 && !val2)

[gritty elm]

yes you can also do it explicitly, there are multiple ways, but it is your personal preference, there is not any performance impact on this, use any method

[soft peak]

oh thanks alot folks!
also the note on perfomance is gold!

https://tenor.com/view/thanks-thank-you-tom-hanks-merci-gracias-gif-9173631

[gritty elm]

@soft peak sure, if you are new to unreal blueprint programming, please watch this complete playlist, this is what you are looking for : https://www.youtube.com/watch?v=BVpy7kvz_yg&list=PLL0cLF8gjBpqRUy7r0DtVY3Fcdgq5Wk-h&ab_channel=DevSquad

[faint pasture]

Drag off a boolean and use an and operator

Just drag off and type AND, you'll find it

[trim matrix]

Hello guys. I need some explanation.
A ground where it's spawn short, I want to make it some kind of fade in.

[faint pasture]

Well it's up to you to decide what fading in should even look like

[wary tinsel]

is it possible to spectate a camera placed inside an actor? I tried with set view target with blend but it's not working

[gritty elm]

@trim matrix if the actor that you are spawning is static mesh object, it should have materials, so you can set the material opacity of object to 0 when spawn or by default and when spawned you did a interpolate from 0 to 1 using timeline or lerp method to set it's opacity, so you have fade effect

[gritty elm]

you first need to get reference to your actor and from that actor you get the reference to camera component and then set view target

[wary tinsel]

did that but it's not working

[gritty elm]

can you post here a screenshot of your blueprint

so i can see are you doing it correct or wrong.

[tough halo]

hihi all!
I use realtime mocap in AnimBP. But I want to smooth a bit mocap data in order to remove unnecessary noise in the mocap data.
With the ARKit Iphone, everything is simple. You take the data, break it down into coordinates, put it together and have data that you can smoothly smooth out.
The Wrnch mocap that I am currently using does not give me its date so easily. And most likely it won't.

The idea is this. I want to refer to the data of the skeleton (which is already working with the mocap data) and smooth them out.
But here's how to refer to the skeleton of the same AnimBP in the event graph?

[sharp sigil]

Where is the Convert Actor to Static Mesh setting? I can't find it at all

[turbid siren]

Guys mayor problem here. Convert Mouse Location To World Space gets more "space" between movement when moving away from 0,0,0.
So if im at 0,-120000,87000 the X location moves in bigger steps, as if its snapping. The Z always stays accurate.
Any ideas?

You can see the steps it takes here and the location im at top left

Here you can see its more accurate. Less bigger steps And this is at almost 0.0.0

[coral canyon]

Troubleshooting why this appears fine in the blueprint editor, but black in the scene.. it must be something simple

[ember veldt]

Likely a floating point precision issue, large floats begin losing precision, and start "snapping"

[turbid siren]

@ember veldt What do you think would be the solution?

Ive already tried to move the player controller to the location to see if it helped getting accuracy back. But that did not work.

[ember veldt]

Origin shifting is one way to deal with it i believe but I dont know how much support exists for multiplayer if that's a factor

[turbid siren]

Multiplayer is not a factor, i will look into it, but from what i already read is it impacts all actors in the world, and not just the mouse.

And thanks ofcourse 🙂

[soft peak]

"ImageA"

the maximale "x" from "Get Mouse Position" is about 1500

the "x" from "Get ViewportSize" is 800,
shouldnt it be 800 too?

[native ice]

Hey so im working on a turn based game and i need a but of help setting up the turn system mainly i need help figuring out how to generate ids for units when the get put into my turn array so that i can keep track of which units turn it is

[dawn gazelle]

Can't you just store the actor reference in the turn array?

ie. make your array an array of actor objects.

Otherwise, you can generate GUIDs which are basically guaranteed unique IDs.

[native ice]

ok im not used to unreal so im not sure wat i can and cant do

im still trying to figure out how to manipulate the array in the way i want

[atomic prairie]

Hello! I'm looking for a node for get 2 random numbers out of 3 numbers (3 place, select 2 place with random)

[earnest tangle]

it does not exist

if you have an array of the numbers, just pick two numbers from it using the random nodes that are available for arrays

[atomic prairie]

If I duplicate the node I risk having the same number twice

[earnest tangle]

Right - so save the array you create into a variable, pick one number from it, then remove the number, and pick another

Note that you need to save the picked numbers into variables as well - due to how nodes with no exec pins work, all separate connections from them would pull a new random number

[atomic prairie]

Thx i'm gonna check that!

[earnest tangle]

if you're on 4.26 there is also a random node that gets a random value from an array directly

[atomic prairie]

No i'm on 4.22

[earnest tangle]

ah okay yeah in that case what you have is the way to go :)

[dawn gazelle]

A little function that can help you randomly choose multiple items from an array without duplicating a choice.

[atomic prairie]

Oh thanks

[dawn gazelle]

Still could use a bit more in terms of validation (like, if the num to choose is < 0 then it'll still break)

[devout geyser]

In montage tracks, you can add a notify ( Notify is like a call for event in a certain time in a montage ) than you can access it from there ( i think )

[trim matrix]

Can you show me a sample?

[devout geyser]

Sure thing

hold 2 seconds

[icy dragon]

I've seen you spamming the exact same question over and over again across the server. I decided to jump in.

First, I don't use Wrnch, so I have no idea about Wrnch specific cases.

Here's the thing: you can't refer every single skeleton that uses one particular animBP, but there are few workarounds:

1. you could just get the skeletal meshes that you "hardcoded" to use that one animBP
2. You could also use Set Master Pose Component to make one skeletal mesh match another skeletal mesh's anim instance verbatim
3. Create a new animBP and make it follow the parent - this will make the skeletal mesh follow the pose of the skeletal mesh it parented with, while retaining anim post process BP or physics driven bones.

[sharp sigil]

Literally the most satisfying collapse to function

[limber seal]

can anybody help me troubleshoot why my guided missile launcher isnt working? I followed a tutorial online, and everything compiles with no errors, but when I press the keyboard key I assigned it to, it doesn't launch the missile lmao

[bleak apex]

😦

[soft peak]

the maximale "x" from "Get Mouse Position" is about 1500
the "x" from "Get ViewportSize" is 800,
shouldnt the maximale "x" from "Get Mouse Position" be 800 too?

[dawn gazelle]

This node seems to get what you want.

[soft peak]

@dawn gazelle all i see in the "ThirdPersonCharacter-Blueprint" is that:

[fiery ridge]

https://gyazo.com/aba6dba1c826b92d408794d3dc6f9b11

Inside a widget, the boolean remains true but the branch never fires on TRUE, why?

[dawn gazelle]

Uncheck context sensitive. The node also requires a player controller reference.

[icy dragon]

Is splitting Switch on Int node a good practice at all?

My colleague insisted on using this method:

[soft peak]

thanks alot

[dawn gazelle]

It can work but it makes it a bit hard to follow what is happening. Enums are usually great with switch nodes as you know what it is you're switching by thanks to their friendly names, and the values are transferred around as bytes (8 bits) rather than an integer's 32 bits.

So technically, you could save some memory too.

The limitation of course is that enums can only go up to 255 values, where an int can be between +/-2.1-odd billion.

[icy dragon]

We can't use Enum for this case as the UI framework uses int to make the switch more agnostic to the context and reusable in other widgets.

Also we have some widgets with "procedural" content, that, depends on the player, the population can go above int8 restrictions.

[dawn gazelle]

There's also the possibility of having another enum to control and using generic byte variables converted to the appropriate enum for use....

So your widget can contain a known enumerator value that can be used for context, and based on that context, you can switch after converting a byte value to an enum.

Example here I have a known "Stat Type" enum, then I'm converting a Byte variable into another enum depending on the path taken.

Not sure if this would be helpful in your case if you are dealing with procedural stuff.

[dense tulip]

Hi guys, i know this will sound like a noob question but, what is the need for a DefaultSceneRoot ? I Have the habit of overriding it !

[icy dragon]

It's just a default root in case of you don't override it.
It could be useful to select the BP in the map if your BP don't have any meshes.

You could also replace it with a billboard component and use your own sprite for icon.

[dense tulip]

Thanks for the information, really appreciate. The case with no mesh is something i had not thought of!, Thanks again !

[dense tulip]

There is a rotating component stock with UE4, is there a wobbling one, like moving an item up and down slowly ? Or do i need to make a animation ?

[icy dragon]

If you want to do it in pure math, sine trigonometry could work.

[dense tulip]

But its not the standard way, right?

[icy dragon]

Depends on your purpose, really.

There are times when sine math is a viable option, there are times when predefined curve is a more viable option, there are even times when using Control Rig tricks is a more viable option.

[dense tulip]

i'm on a side scroller project, i want to have a key wobble up and down slowly as this is an item i can pick, like getting health or losing life, etc

its the wobbling i want to get

[dawn gazelle]

Is this the effect you're going for?

[violet wagon]

The easiest way I think would be to use a timeline to change the Z location over time.

[dense tulip]

Sounds like what i am trying to do, i'll see what i can do

[tight schooner]

Prototyping that animation w BP is fine but eventually you'll want to learn how to do it in the material graph @dense tulip

so that the CPU doesn't have to update every powerup position every frame

[dense tulip]

Thanks for the help, finally got my timeline 🙂

[dawn gazelle]

The movement of the blue shield mesh in my example above is done entirely through the material. Super performant, doesn't require tick or timelines.

[fossil ferry]

I am trying to get the camera to spawn as the background of the menu but it is not triggering:

[mighty sinew]

how do i fit a player start into transform?

[fossil ferry]

make transform i think is what i just used @mighty sinew

[dawn gazelle]

You'd need a reference to the player start to get its transform.

[mighty sinew]

how do i do that

[dawn gazelle]

Extremely basic way is "Get Actor of Class" and select player start.

[unique rapids]

Hi guys, do you have any idea why my collisions stops working in runtime?
I have a case, that when I'm on VR and I grab a valve, then times to times collisions stops working. Raycasting is still visible, box colliders too but none of them call the events anymore.
I can see traces which are no longer "colliding" with anything
Do you have any idea what may cause that strange behaviour?
Any small lead which could point me in right direction? I have absolutely no idea what may be happening there...

[raw stream]

Hi there, how could I say to unreal that all these object are from the same "family" ? I mean, i want to display the name of the object that appear in my scene but not the numbers.. I have many object and I wonder if i could say easily to unreal that all the "Borde N" are named "Borde" ?

I hope I could be understand by someone haha

[fiery ridge]

I understand it's easy to make RNG for 10%, 20%, 30% etc. But how about say 5% or 17% or 73%?

The way I'm thinking is, if I want say 5%, i make 1 to 100 random number and then compare it with 5 different random numbers within that range. All of those 5 numbers have a 5% chance, right?

[icy dragon]

I would approach it as 1/x or one in a number, instead of percentile.

[fiery ridge]

how so?

[icy dragon]

Just have one particular number in between few numbers.

[fiery ridge]

so say you want 7%, how would you go about that

why am i so stupid sometimes 😦

[arctic junco]

why is destructible mesh not working

im press on Fracture Mesh button and nothing changed

[fiery ridge]

Is there any particular reason the Switch On Int node doesn't let you manually change the output values?

[icy dragon]

wdym by Output values?

[dawn gazelle]

Personally, I find switching on int very cumbersome. Without knowing what those integers represent it's not clear what the intention is in the execution path (like, why does 0 make the character spin around, but 1 makes them bend over). If you really needed to, you could do something like this which would use up a small amount more CPU time than comparing numbers directly.

[icy dragon]

Using particular numbers?

[fiery ridge]

https://gyazo.com/2bbd83bd54dac8449b9be7efccbfb9d8

You see those numbers? They can only be in order, you can't enter a manual number

[fiery ridge]

That's very clever lol. I love it thanks

[supple plank]

Would anybody know how i could create an expanding hollow circle parallel to the ground? i want it to represent a soundwave

[quaint bough]

maybe circle function and increase radius over time

[supple plank]

what is this circle function? i can only find a debugging one

[quaint bough]

i mean this but forget what i said haha

[supple plank]

Oh i see

[quaint bough]

you can make a circle mesh that is hollow and increase the x, y scale

[supple plank]

I guess that would work, but it wouldn't be able to collide with walls then..

[spark steppe]

you can make a material with 2 sphere gradients and use the smaller one to mask out the inner part of the bigger one

[inner cypress]

yo if i have a map filled with sawned actor references, they are a ref and not a copy right?

[spark steppe]

imho theres no real reason for a mesh, that can be made with a masked material on a plane which should be cheaper to render

[dusky harness]

How can i add weapon sway to my arms if my camera is attached to arms head socket?

[coral canyon]

Good morning everyone, I’ve got a softball question... Why would a translucent surface material that’s default lit with volumetric lighting appear translucent in the blueprint but black in a scene?

[quaint bough]

im trying to interpolate a height map with bilinear interpolation. i go over 4x4 areas i think i do it right but somehow i rotate the 4x4 result by 180° when putting it back into my array and i dont find the mistake.

here is my blueprint
https://blueprintue.com/blueprint/m92exll7/

ok nvm i found it 😄

[zenith pond]

If I want to make some animated background cars that just follow splines, at what would you go from procedurally animated mesh moving along spline, to a simulated car with AI?

When I'm thinking about features like rotating and turning the tires, snapping to ground, faking some suspension, it starts to add up in complexity real quick

[slender idol]

Hey guys! I've got a bit of an issue, in my game, I randomly generate some platforms for the player, these all inherit from c++ base classes into different types of platforms, now I'd like to re-use these platforms (they are bp's in the end) instead of spawning/destroying them, what would you recommend for this approach? Is spawning a lot of them of different types in order to move them around whenever I need them going to be worth the performance increase from no longer spawning/destroying them constantly?

[drowsy jetty]

Hello everyone. Are there blueprint freelancers here?
The task is to correct the control of the character of a 2D game.

thank

[trim matrix]

Hello, I'm trying to get the default character blueprint to spawn with a random name and color. I am correctly generating the values, but the set is not done. What am I missing ?

Used in this way:

And created with a cheat code:

[dawn gazelle]

Is your default character a "Unit Master"?

[thick parrot]

https://docs.unrealengine.com/en-US/BlueprintAPI/Utilities/Array/Identical/index.html

Has this been removed?

Never even saw it in 6 years of UE4 (haven't searched it either till now, but still, feels weird that i cannot find it anywhere)

[trim matrix]

My default character is the camera

[soft peak]

inside the third-person-character-blueprint class
there is this:

can i edit this "function?"
(i try to limit the rotation of the player, so the mesh can only move slightly to the left or right)

[dawn gazelle]

So what I'm seeing here is that you're spawning in a "Unit Master" with your V key there, and you're setting the "Unit Profile" structure within the Unit Manager itself, so there's no real indication that you're trying to set any values within your default character - you're just spawning another actor and setting some random values in it.

[trim matrix]

Yes, that's it. The goal is to spawn a unit with a given set of characteristics

This is for a top-down RTS style

so here I'd like to spawn the class and assign a random name and skin to the character

[dawn gazelle]

Ok so after spawning the Unit Master, how do you know the values are not being set? What you've done is valid and should be getting the values set on the Unit Master actor that gets spawned.

[pseudo tusk]

Hello :) I am currently experiencing this error with crashing whenever I open certain collapsed nodes

"Assertion failed: OutPin->LinkedTo.Num() == 1 [File:D:/Build/++UE4/Sync/Engine/Source/Editor/GraphEditor/Private/BlueprintConnectionDrawingPolicy.cpp] [Line: 506]"

[trim matrix]

My dude are black:

And have no name apparently: (when I edit a dude)

[dawn gazelle]

Not in scope doesn't mean there's no value. After the set, break the structure and put the name into a print string node.

[trim matrix]

ok the name seems to be set after all; Thank you !

[soft peak]

is it even possible to "limit" the rotation of the player while using the pre-made
"third-person-character-blueprint class"?

[maiden wadi]

@soft peak What kind of limit? As in how far the camera can rotate in certain directions?

[soft peak]

@maiden wadi no, i mean the player-mesh
by default the animation "run" is playing (and mesh is facing forward)
when i press left, the mesh should rotate only "a little" to the left

[maiden wadi]

That highly depends on your animation setup.

[soft peak]

what i got is that:
https://i.gyazo.com/5e8548b180fc896ba655bf5a89771d76.gif

the "animation"-clip should be the same

[maiden wadi]

Is this for like endless runner style movement?

[soft peak]

the mesh only rotates, but i think i can limit the amount of that rotation

yeas exactly

[maiden wadi]

I would just disable the pawn's rotations. Both orient towards velocity, and using control rotation, and then just set it yourself on tick based on the velocity, with your directional clamp.

[soft peak]

uh 😄 what....^^
ok i think i will fail on the first step, i will try to solve it like you said,
i will come back when i am lost 🙂

[maiden wadi]

How are you doing it now? OrientRotationToVelocity?

[soft peak]

i used the thirdperson-template, it is using the thir person charcter blueprint

[maiden wadi]

Open the character, and select the CharacterMovementComponent.

In details, find this. Does it look like these settings?

[soft peak]

yes

[maiden wadi]

Kay. Just make sure both of those are unchecked. After that you should have zero rotation while moving.

[soft peak]

oh wow you are right 🙂

[maiden wadi]

What world direction does your runner go in? +X or +Y

[soft peak]

+X i guess

[maiden wadi]

@soft peak Alrighty. Something like this is likely what you're after I think.

Only affects Yaw rotation, since you don't normally want to pitch or roll a character.

[soft peak]

woah thanks alot @maiden wadi!!!
i will give it a try!

[maiden wadi]

Alter the bottom left vector to change the world direction you want it clamped to. Alter the +45 to alter the rotation's clamp. And alter the InterpSpeed on FInterpTo to affect how fast it rotates.

[soft peak]

dumb question, but how did you "expand" the "SetActorRotation?" so you have 3 separate pins instead one?

[maiden wadi]

Realized a small mistake. You'll want to change the math to this, otherwise it'll break if you change that vector away from 1,0,0

Er. Man I'm slow today. This one is correct. Haha.

[arctic sapphire]

Hello, I'm currently trying to build a little inventory system. When I pick up, lets say, "Item 1", it gets added to the inventory like it should be. When I add another "Item 1", it adds 1 to the Item Count of that item and does not add another one to the Inventory, as it should. If I now pick up "Item 2", a different item, it gets added to the Inventory aswell, as it should. When im now picking up "Item 2" for the second time, it does not find the already exisiting item of that in the array and behaves like its a new Item thats not in the inventory yet. Why is it doing that? Can someone spot the problem in the blueprint? If there are any questions, just let me know. I hope you can help!

[soft peak]

@maiden wadi did you "expand" the nodes???

to show all x,y,z outputs separate?

[maiden wadi]

Yeah. Right click the purple pins and break the struct.

[dawn gazelle]

The one thing I think I can see is that your first loop, you're not really iterating over the entire inventory - you're only looking at the very first item in it and based on that judging if it's a new item or not as you have that branch there, and both of the paths lead to the break of the loop.

[soft peak]

haa, oh god, thats hidden!! 😄 thanks so much!!

[arctic sapphire]

Oh I think I see something ,,wrong" there aswell. My idea behind it was that it should look through all the items and as soon as it hits a matching one it should set the bool to false because it wouldnt be a new item and then break etc., but it wont work like that because its basically already breaking after the first ,,result", no matter what. How could I achieve that tho? That it looks through the whole inventory, sets and breaks at the matching array item and will only set it as a ,,new item" if theres really no match in the whole array?

[dawn gazelle]

Set "New Item" default to true. If the items ID match, set new item false and break the loop. If false, do nothing (let it continue to loop)

Doing this should also allow you to skip the inventory length check prior to the loop.

If there's nothing in the inventory, then the loop will automatically complete, so it would be a new item, and continue to do what a new item does.

Your new item code will also run into problems as everything you're doing on the "Completed" portion of that loop is pulling the array index of the last object in the array and manipulating values of that inventory item (which you shouldn't be if you're adding a new item).

[arctic sapphire]

I tried it out and now its not recognizing any new items anymore. Probably because it sees everything as a not-new item because the bool wont get set to true anywhere if theres no match in the array?

[dawn gazelle]

The bool should be set to true by default.

[arctic sapphire]

It is, but if it once gets set to false, itll stay like that unless set to something else again?

[dawn gazelle]

It's not a local variable set within a function?

[arctic sapphire]

Its basically just a variable in the blueprint

I fixed it btw, just added another set at the false branch

[gusty shuttle]

Hey folks, is it possible to extract your data table and make it a excel file?

[maiden wadi]

I don't know about an excel file specifically but you can export it to a CSV, which I'm sure can be imported to excel.

[gusty shuttle]

Cool, I need to learn how to do that haha @maiden wadi

[dawn gazelle]

Yes, find your table in the content browser, right click and select Export as CSV (shoudl be at the top)

[arctic sapphire]

Whats the problem there? It takes the last item because I thought the new item would get added at the end of the array, and therefore I want to manipulate the last index (which would be the newly added item)?

[gusty shuttle]

Done and done, thanks @dawn gazelle @maiden wadi

[dawn gazelle]

Ah I missed the add before it happens.... Well, really, you shouldn't necessarily be looping just to manipulate the values of the last item of the array... Just use a last index node with reference to your array.

[arctic sapphire]

Oh thanks, I didnt know that node existed! Are there other optimization possibilities besides that? Im still fairly new and dont know whether the way im doing it is the ,,best" or even the right one

[gusty shuttle]

My next question is, how many rows is too many rows for npc dialogue before you start seeing slower response times?

In a Data Table that is

[dawn gazelle]

You could probably skip that whole last bit entirely as you could be using a "Make Item" node to add the values before adding it to the array (or as you've already done, use the set members in item node)

[arctic sapphire]

I think imma just stick to the Set Members node, but thanks for your help and advice btw!

[dawn gazelle]

And really, you should be trying to compartmentalize your code into functions - this gives you access to use local variables that can have their own default values that will be reset on each execution (like the boolean we were talking about) and functions can take input values that you can also access like standard variables within the function (so you don't have to have tons of wires all over the place).

[arctic sapphire]

Functions like ,,Pick up new item" and ,,Pick up already existing item"? I once looked into the topic of functions, but it seemed a bit complicated to me, but I will try to look into it a bit more, I can definitely imagine it looking nicer than the current setup!

[dawn gazelle]

Yes, very much like that. It makes it easier to follow along and is a way of preventing duplicate code that does similar things.

And then when you want to get more advanced, you can make components... An inventory is one such thing that works great as a component because maybe you want other things that act like inventories in your game.... Like storage, or a reward chest.... Then you can attach those components to other actors so that they can have their own inventories that you can interact with, without having to recode your entire inventory system into another blueprint.

[arctic sapphire]

Oh yeah, Ive actually thought about doing something like that, but I wouldve just pasted the code I guess. Do you talk about these Blueprint Interfaces or am I mixing something up?

[dawn gazelle]

Not sure what you mean. Talk about what blueprint interfaces?

[arctic sapphire]

Just a normal blueprint interface you can add to other blueprints, I heard about it being good for adding systems like an inventory to other stuff, but you probably meant something else with ,,components"?

[dawn gazelle]

Interfaces are usually used for communication between blueprints. A component is something that is added to a blueprint, like a Skeletal Mesh Component... In this example, I have a "MainInventory" component and a "MissionManager" component.

These are attached to my player controller... and within the component contains the code for what it needs to do on its own.

And since this is a component, it can be added to any other actors you may want, you just build out how it works with that particular actor within the actor's blueprint.

[thick parrot]

Is "still there" or is now there?

cause I'm on 420 and that is not a thing

so guess is new

was pretty weird that that could have possibily been removed since it would have broken many projects

so yes, the more senseful reason is that it's a new thing

never saw it in past and it's not on 420

so guess that's it

[arctic sapphire]

That looks interesting! Would you mind if Id send you some of my other gameplay ,,systems" to get some more advice on optimization or stuff like that later? Id appreciate it!

[gleaming oar]

Hi guys ! Can someone help me, i'm trying to attach a spline point to a socket, or at least update spline point world location depending on socket world location but I can find a way to make it works ? Thank you

[fallen glade]

How do I get my pawn self in a function library? do I have to cast to self?

[hollow cape]

the target is already self @fallen glade , if the call is on the pawn you don't need to connect anything to the Target pin

[fallen glade]

I guess it can be fed directly, this is the error I get with no self @hollow cape

[hollow cape]

Well yeah, that's being called on a class that doesn't inherit from pawn, so self wouldn't be appropriate

You could add a pawn reference as an input, and feed it Self when calling it on a pawn

[fallen glade]

yeah i've done that

[dawn gazelle]

Post your questions or requests for help here. If I catch it and I can answer it, I will.

[fallen glade]

Could someone explain to me what this "WorldContextObject" is please? I'm confused

it's popping up everywhere in my function library

[twilit heath]

static libraries don't have a world context

[fallen glade]

so just leave empty?

[twilit heath]

so they can't use functions that require world

[fallen glade]

?

[twilit heath]

no, it will at best, give bad return, but more likely crash

[fallen glade]

.... what do you mean "world" ?

[twilit heath]

the functions that use other functions requiring world context need to take a UObject* as a parameter

[fallen glade]

what shoud I plug in?

[twilit heath]

actor, or actorcomponent

and that should be plugged into their world context

[fallen glade]

so if I plug the actor using the function it should be fine right?

[twilit heath]

but you need to send an actor reference as a function parameter

then, yes

[fallen glade]

ok thank you! what did you mean before by "world"? what is it?

[twilit heath]

its... simplified, your map/level

its an object that encapsulates the level itself

[fallen glade]

I don't get it but thank you

[twilit heath]

and anything that has to be able to read from the world - nav, line traces, getting gamestate/gamemode

needs a world context to work

[fallen glade]

oh I think I sort of get it now

[twilit heath]

normally

when you call those functions from an actor

actor is a valid world context itself

so blueprint just hides the WorldContextObject pin

[fallen glade]

wouldn't that work if I use a function from a library? Why can't it collect the actor is trying to use it?

anyway I get it, thank you for your time

[twilit heath]

it doesn't know which actor is trying to use it

unless you send it as a function parameter

[fallen glade]

I see,, thank you so much, very helpful as usual 🙂

[severe geyser]

hey folks, Datura shared this with me to create a progress bar timer. I didn't have a chance to try and implement it. I am working on it now, but I am not sure where to construct this? Would it be in the event graph of the widget, or the progress bar bind?

[keen pendant]

Hey so I'm trying to create an overlap effect where when one BP (player character) hits another BP (bowling pins) they get launched in the air and disappear. I've set up a material on the 'bowling pins' to dissolve a parameter via timeline. This works great for a single pin, but since I'm replicating the same BP - it ends up only running a single instance. How can I get each BP to trigger its only dissolve fade when overlapped?

[onyx palm]

anyone able to tell me reall quick where i can change it to add more frames to Level Sequencer...from 200

[burnt nest]

Just spontaneously, I'm thinking you need to assign a dynamic material instance so that they're each unique.

[trim matrix]

Im trying to play a camera shake. This is the settings for the shake and Im using the play world camera shake node with the shake put in as the class, but the camera shake isnt playing. And I used a print string so i know that the play world camera shake is being called. What am i doing wrong?

[supple plank]

I'm trying to make a circular wave that expands and would act as showing the line of sight of the player, does anybody have an idea of how i could make this circle hollow and make it expand? it's made with an environment query

[nova ledge]

Hello everyone! I'm trying to make it where my character's head turns to a certain degree by having it follow the camera. I did follow a video on how to do it, however, when I play in the world test thing and click ESC, I get a "Bluprint Runtime Error: "Accessed None trying to read property FollowCamera". Blueprint: AnimBP, Function: Head Rotation Func 1, Graph: HeadRotationFunc1, Node: Set." Everything works fine when I play it, but this still concerns me. What exactly does it mean and how do I fix it? Or is there a better way to do this? Here's what I got right now...

[trim matrix]

use an is valid with your camera

[nova ledge]

Where would I put that exactly? I tried that but then the head rotation won't work

[trim matrix]

drag off of your camera and get the is valid with the question mark icon and put it after your cast. it should still work if its working already

if not then idk im stupid

[nova ledge]

Oof, I swear I did that earlier XD anyway, it works now. Thank you!

[burnt nest]

Have you tried a positive value for the roll amplitude? I'm not sure why you'd put in a negative amplitude.

[trim matrix]

so it would rotate the other direction. I figured it out though. Needed to set put the actor location in for the epicenter

[coarse forge]

Question about destroying and spawning actors

I'm getting Blueprint Runtime Error: "Attempted to access Axe_BP_2 via property K2Node_CustomEvent_ActorToDrop, but Axe_BP_2 is pending kill". Blueprint: MainCharacter_BP Function: Execute Ubergraph Main Character BP Graph: EventGraph Node: Branch

so I destroy the actor.. after storying it in a variable on the character

then later an event if you press the button 'drops' the actor or spawns it

from that variable

I'm guessing its keeping a reference or pointer to the original actor?

[soft peak]

@maiden wadi helped me to realize completing the "third person blueprint class", so the player can only rotate to a min/max to left or right while "a" or "d" is pressed,
this is what it currently looks like (sadly it does not work as expected, "a/d" doesnt trigger anything)
and since i actually dont know what i made up (i just copied from the screenshot he kindly served) i do not see any errors...

[maiden wadi]

InterpSpeed is zero.

[trim matrix]

You are destroying the reference you made you need to find a way to get rid of your actor without destroying it

[coarse forge]

like set actor hidden in game?

[trim matrix]

i mean yeah you will also have to disable collision as well

[coarse forge]

why doesn't destroy and spawn work

or.. better question.. how to spawn a new instance of that actor

[trim matrix]

you're storing a refernce to the actor in the variable then destroying the reference

[soft peak]

oh you are right @maiden wadi -.- (dumb me)
but still it doesnt trigger a thing

[coarse forge]

So instead of the get class here.. just choose the actor bp I want to spawn