blueprint

[surreal peak]

The variable can't know which one you mean.

You need to make sure that you set up your references in a way that you can access them

There is a Stream from Epic Games pinned to this channel called Blueprint Communication

Watch that

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

it's a bit older but should still be relevant

Whereever you create the Widget you need to save it to a variable

[short pawn]

ok thank you

[surreal peak]

And then you need access, the same way, to whatever has that variable

Usually you ensure that you use easily accessible classes

Like spawn your HUD in the PlayerController

And save it to a variable

Spawn your Menu there too

[short pawn]

im going to try and save it as a variable and refrence it in the playercontroller

[surreal peak]

Then you can alwasy GetController etc. and grab the Menu

[short pawn]

thank you that really helped me. i thought it was fully a working reference to the widget. i didn't realise it was just a container

[surreal peak]

Yeah Pointers (in C++) are probably a bigger entry barrier to understand

[short pawn]

ive used references like that before and it worked. im so confunsed

[surreal peak]

They call them References in BP, although they are basically Pointers

Don't ask me why they do that

[tender gorge]

Hey everyone. I'm making an Infinite Runner as a game to learn some Blueprint stuff. I have it set so that a Collision Box is set to End Overlap to destroy the actor which makes it so it destroys the previous Tile Map, but I'm having the issue where when I die it destroys the Tile Map and it is linked to the End Overlap Collision Box. I know it is linked to it because if I remove the connection it no longer destroys the Tile Map, also Breakpoints show that it is caused here. Is there a way I can still use the End Overlap to destroy the actor but someone disconnect it upon death to make sure it doesn't happen, or is there a better way to destroy the previous Tile Maps?

[surreal peak]

Hm, I guess overlap is fine, but you could also check distance for example

[tender gorge]

Is this to me or someone else? If to me what do you mean by check distance?

[surreal peak]

Distance from Character to Tile

Idk how your tiling works, but usually one have like x tiles that are moved (and the player runs in place)

[tender gorge]

The Tile Maps don't move and the player moves.

[surreal peak]

Yeah that's basically wrong

Cause game worlds aren't infinite

The further you run the higher the floating point errors go

That's why you usually keep the player stationary

And just move the tiles below them from front to back

That way you also know, since you are moving them, if a tile reached the end and can be despawned

But let's say you are doing it with the Player running. You can check the distance between tile and player

[tender gorge]

I couldn't get it to work properly doing that. I'm not using tiles I'm susing 2D Tile Maps and I kept getting a lot of issues.

[surreal peak]

If it execeeds the tile size or whatever distance you want, it can be despawned

[tender gorge]

I wouldn't know how to do that. I can copy the project and try doing it that way again.

But then I also am not sure how to do the obstacle spawning with that.

If worlds cannot be infinite than why would there be tutorials for games with infinite world from Unreal?

[frank rover]

Worlds can not be infinite. Just make a cube and move it forward with crazy speed. You will see rendering glitches and stuff. There are ofc ways around it that usually move the whole world to fit the world origin.
For an endless runner it's very common that the player doesn't run forward but the world runs backwards kind of. And it's not really more complicated to set it up this way

[icy dragon]

Infinite/Endless Runners are faking their locomotion. It's just chunk of stuff generated ahead of you and scrolling towards you.

[tender gorge]

I do know this is how they are, but for some reason I just couldn't get it to work with 2D Tile Naps without a lot of issues that I'm just not sure how to deal with. I'll go and make the switch. Hopefully I don't have too much issues.

Those people who do tutorials for Infinite Runners should be slapped for making the tutorials that way.

[charred flint]

Hi guys, when I make a blue print on a widget with "open level" and go to the level it no longer seems to connect to a play mode, it just sees a player standing there but nothing is happening when clicking, etc.

Seems that it doesnt find the game mode or something

[charred flint]

I somehow think its skipping the event

[tranquil abyss]

Can I not create a custom event between a UI widget and a player character

[gentle urchin]

Yes

[charred flint]

This is the blueprint I have made currently (so when clicking button open level and include the options of player mode, etc)

(but that doesnt work obviously)

[gentle urchin]

Which game mode is specified in mainmap?

[charred flint]

topdown

[gentle urchin]

Options must bebhandled by you aswell

[tranquil abyss]

so I cant (just for clarity bc English is English)

[charred flint]

I think its because I have the login interface as first menu that when it opens level mainmap it somehow doesnt know about the player movement, etc

[gentle urchin]

The game cant know what to do with some random vector input

It must be handled manually

[gentle urchin]

You can

[charred flint]

So what do you advise me to do?

I have a login system via xsolla plugin ( works great ) it will be the start menu of our game. So when I have a redirect to the MainMap it doesnt know the game mode it seems, is there a good way to do this via the blueprint?

[mental robin]

Not sure where to put this. I've been working on a mobile idle game but I've been putting all the variables and functions like costs/upgrades etc in the game mode...but now I am thinking it would have made more sense to put it in the game instance..... does it really matter

[icy dragon]

Depends if you want to prevent cheating/memory hacking or not.

[mental robin]

Lets say I do want to prevent that

lol

:\

[tawdry surge]

Game mode is fine for anything relating to the "game itself". Idk who's hacking mobile idle games anyway

[mental robin]

I guess I was thinkling since the game instance is persistant accross levels it would have made life a bit easier

[tawdry surge]

Save game object is more proper

Either way will work

[mental robin]

Okay I feel better about it now then lol

I was having a moment

[tranquil abyss]

So I have a little ability menu and im trying to use scroll wheel to select the ability when I click

I have the scrolling working properly when I have it up and the number range is working just fine

the map works just fine when I click the buttons the correct action happens

I need to be able to scrooll and click to use the ability While still being able to move

or use the ability index I have made to pass into the UI widget somehow

Should I need a better way to do this OR i need to take the ability index value and (Click / press / fire, whatever you call it)

the ability in the Ability UI

[bold phoenix]

Is there a simple way to remove all values equivalent in an array ?

Lets say I have [ 1, 1, 2 , 4 , 2 , 1 , 4,4 ] and i want to obtain [1,2,4]

[gentle urchin]

Afaik a level cant be opened without a gamemode , so there must be one, even if it were not the one you expect. Passing in cursor world loc as a string needs to be parsed manually for it to do anything

[gentle urchin]

Only values that are representated teicr or more ? Thr example had multiple optional meanings by itself...

If the array was [1, 1, 2, 1, 4, 3, 4, 2, 2] what would the result be ?

[1,2 4] ?

[bold phoenix]

No if you have a 3 in your array you will obtain [1,2,4,3]

The goal is to keep one value of each

But there was a very easy way to do it with a simple loop and the 'add unique' node, thank you tho !

[gentle urchin]

Yeah that one exists. Wasnt clear what your goal was :) no prob, whateber i did not do 😅

[bold phoenix]

yeah i know, its kinda hard to explain when you know what you want but you don't know how to do it, i'll do better next time 😉

[pulsar spoke]

Hi everyone! I'm still relatively new to UE4 and I have come upon a problem in a game I'm making. The idea is to make a little spaceship rotate around a planet to make it seem that it is being affected by its gravity.

Currently, when the spaceship overlaps the planet's collider, it triggers a boolean in the Tick function, that in turn makes a function that (for the moment) is called BP_Test to continuously be called, which does the following:

As you can see, the problem relies on the fact that when the spaceship overlaps the collider, it starts spinning but not from where the pawn first touched the collider, but on a exact spot. By debugging I realized that this is because of the planet's variable called "Angle of Rotation". Because by default it is 0, it always makes the pawn rotate from that exact point.

So what I want to know is that if there is a way to calculate the angle of rotation based on when the pawn first touches the collider. I thought about getting the distance between the center of the planet and the location of the pawn when it first collides and from there calculate the point in the circumference, but it is just an idea and I kind of got stuck thinking how to go from there.

Thanks in advance for every comment or idea on how to do this 😅

[charred flint]

Within the blueprint of open map on click..?

[severe kettle]

Is there any way to turn unreal engine coordinates to right handed mode? I've been doing some blueprints about circular trajectories and now I realise X is backwards and when an actor rotates it rotates clockwise around the Z axis, which means all the paperwork I did is not valid xD

[earnest tangle]

Not really. Better to fix your actors so that X is forwards as it's expected to be

[icy dragon]

X is forward

[icy dragon]

https://twitter.com/timsweeneyepic/status/952661474501111808

Tim Sweeney (@TimSweeneyEpic)

Sorry y’all I was young and this coordinate system stuff was confusing https://t.co/S2tkQRfAHr

Likes

2954

Retweets

706

Twitter · Jan 14, 2018, 9:59 PM

[severe kettle]

Yes, I know. I was just wondering if there's an option to turn it into cartesian

[icy dragon]

Simply put, no.

Tbh I was tought X is forward since school so it doesn't throw me off. But I guess i'm "coordinate ambidextrous"

[severe kettle]

I'll try multiplying x by -1, doing all the calculations and then multiplying again by -1, hopefully it fixes it

[earnest tangle]

Probably easier to just fix the calculations if this project is going to be developed further

Otherwise it's just gonna get confusing :D

[icy dragon]

Seem too excessive of a math bodge, but you do you.

[heavy ibex]

When performing a hit result under cursor for objects, is there any way to determine what object type the hit was found with? Looking to be able to determine if the hit object was a WorldStatic or WorldDynamic

[icy dragon]

And scaling It up, especially in BP, might cause some slight repercussions in game thread frametime

[sly relic]

You can call Get Collision Object Type on the Hit Component output like this

[heavy ibex]

Perfect, thank you!

[severe kettle]

I've always seen coordinates as +X being right and +Y being north, that's why it confused me a lot when I noticed in UE +X is left (if +Y is pointing north), maybe it's one of those usa vs eu differences

[blissful grail]

Yeah - but then Epic goes off and makes manny facing +Y by default, 'cause reasons 🤣

[icy dragon]

And that's where the ambidexterity shines 😎

[blissful grail]

Well because of that, I do my skeletons +Y forward and static +X forward.

Probably weird, but w/e, it works.

[distant grotto]

Could I get some help in figuring out how to get vinterp to work? Im trying to get a character blueprint to offset a certain amount and interpolate to the new location over time but I cant figure it out no matter what I do

[icy dragon]

Have you put the VInterp To node on Event Tick? Interp To nodes have to be run repeatedly.

[distant grotto]

yeah i tried that, it must be something else im getting wrong. the delta time input on vinterp is from event tick here

I might be inputting vinterp into the wrong kind of set location?

@icy dragon

[sly relic]

I think it may be because you are updating the target location every tick. As GetLastUpdateLocation is a pure function, its value is recalculated when it is being read.
The target location is an offset from the current location, so as the current location moves towards the target, the target also moves the same amount due to it being recalculated.
I think you'd need to store the target location in a variable and update it once, that way it won't change as the character interpolates towards it.

[gentle urchin]

Refering to the option string or the map and gamemode? 😅

[crimson jolt]

Is it possible to receive hit events from inside a component, without adding anything to the owning actor?

I'm trying to encapsulate all the functionality inside a component, but I can't seem to figure this one out

[gentle urchin]

You can add a collision component at runtime

wait, you'd still need to add it to the actor

but the actor doesnt need to know about it, if that makes sense

[crimson jolt]

Yeah, adding things at runtime is fine, and I'm also calling a setup function in the component from the owner at beginplay, so it's possible to hand over data. But I don't think this would work since the hit event is only available in the actor blueprint and not the component right?

[runic parrot]

Hi! is there any way to make one object completelly "WHITE"? i removed all lights on my scene and placed one actor with one material, the problem is that it's not completelly white

and when i change it from something else to white, it takes some time to adjust.

[crimson jolt]

Oh awesome, thanks!

[odd ember]

#graphics

[tight pollen]

why For Loop doesn't work like First Index is for example 20 and last is 0?

what do i have to use to get it to work the other way around?

[whole dune]

How can I find the blueprints I need? Im thinking about switching to C++ just because finding Blueprints is a ####### waste of time

[dawn gazelle]

It's due to how the macro is set up. It increments from the first index number.

You could create your own macro to do the opposite using the for loop as a base.

[dawn gazelle]

What do you mean by finding blueprints?

Like, looking for them in the content browser?

[dusk dust]

hello, im having a hard time figuring this out. I am looping through an array of values, and creating a new widget supplied with the values for each iteration. This widget im spawning per iteration has a button. what i want to do is when one button is clicked, return the corresponding value. however the way i set it up makes all the buttons return the same value when clicked

[wicked osprey]

What is needed for red Data Asset?

[dawn gazelle]

Can you show your button click event?

[odd ember]

cpp

[whole dune]

finding the nodes

and finding out what they do

there are a billion

ive been searching for a god damn fitting blueprint node for 2 months noe

ive only been doing shitty implementations

[dusk dust]

@dawn gazelle im pulling the button from the widget, which is being duplicated with a foreach loop

[wicked osprey]

If i create child primary data asset class?

[dawn gazelle]

Well, you probably won't have any better luck in C++ as the nodes are effectively representative of C++ code, just in a visual format.
What node were you looking for? What are you trying to accomplish?

[dusk dust]

it works but only returns the same value no matter the button that is clicked

[odd ember]

data assets are generally only exposed through cpp, though you can use UDataAsset for BP iirc

[whole dune]

i have an object moving along a spline (timeline and lerp) and i want a second one moving afterwards… i tried adding to lerp but that messes it up especially in curves cuz linear interpolation… i just need some kind of offset

[dawn gazelle]

Update your event dispatcher on the button widget to have an input that can return the value you said you were supplying the button. Then you'd need to refresh your bind event to be able to see the value coming out.

[whole dune]

i tried calculating the angle between the 2 objects and adding that to the already modified lerp

but thats expensive af

[dusk dust]

ill try

[dawn gazelle]

So you effectively just want to have two objects moving along a spline, just one behind the other?

[whole dune]

yes

without delay and another timeline or some sneaky tricks because i also control the speed

and delay will mess up on bad pcs

[dawn gazelle]

Have you tried attaching one actor to the other?

[whole dune]

so the second object is a child of the first?

[dusk dust]

actually how would you do this exactly?

[whole dune]

that wont work

[dawn gazelle]

In your button widget, select your event dispatcher and look for this:

Usually at the top right.

[whole dune]

the second object also has to follow the spline (location + rotation) just like the first one but remain a fixed distance between them

[dawn gazelle]

Riiiight, so more like a train

[whole dune]

exactly

in fact

thats what im trying to do

that problem has been bothering me for like 2 months now

[dusk dust]

@dawn gazelle I created a dispatcher and created an input, what should I do now?

sorry if im asking too much, ive never worked with this before

[tight pollen]

i try to do this but i still have infinite loop 😅

[dawn gazelle]

So I don't think there's really a node to accomplish that. This is some custom code you'd have to work out for sure.
What I'm thinking in my head is having a "TrainEngine" actor that is set up to run along a spline. In this TrainEngine actor you can have an array of other TrainCar actors, all defined to run along the same spline.
When you adjust the speed of the TrainEngine, you loop through the array of TrainCar actors and set their speed as well - not realistic per se, but should effectively allow your train to increase speed and keep all the cars together.

[tight pollen]

I don't know how it should look like

[crimson jolt]

Does anyone know if you can give the switch node a variable as a case, instead of hard coding the case values?

[dawn gazelle]

So now when clicking your button, you'd be calling your event dispatcher - feed in the value you want to return back.
In the place where you bind the event, you'll need to refresh the nodes and you should then get an output pin on the red event.

Basically should look like this

[gentle urchin]

Huh

[gentle urchin]

So just 2 actors following the first on a spline ?

controlled by one bp ?

[odd ember]

you mean like... a select node?

[whole dune]

yes

[dawn gazelle]

I think all that is needed is changing the <= to a >= and swapping the inputs, then changing the Local Integer + 1 to Local Integer -1

[whole dune]

Im actually really close

[crimson jolt]

@odd ember Well not really, the switch node will directly control the execution flow. The same can be done with branches but it's less elegant. Basically, I want "if input x = y, execute branch A, if x = z, execute branch B, else execute Branch C"

But I can find a way to assign variables as y and z (called Cases in the node)

[odd ember]

so you want an enumerator?

[tight pollen]

when i do like this and in First Index i set 30 and in last index set 0 then i have always is Completed

no Loop

[dawn gazelle]

There is compare float and compare int if it's just 3 cases. I know it's not exactly what you're looking for, but could get the job done.

[whole dune]

i thought about trying to get the two points at the end of the carriages and then add to lerp

so it wont stretch

or atleast not too much

[odd ember]

well you can make a switch on int with 3 cases as well

[dawn gazelle]

True

[odd ember]

also not sure how good CompareFloat is with precision

[dawn gazelle]

Probably 💩

[crimson jolt]

@dawn gazelle @odd ember Well it's selecting based on a name, which can have one of 2 values. But the whole point is for it to be just one node cause it looks and feels good xD One could easily do the same logic with 2 branches. I just wanted to know if the switch could have variables as cases cause it seems strange that it wouldn't be able to

[dusk dust]

@dawn gazelle thank you so much

it all works

[odd ember]

I mean it really depends on the context. maybe there is a way but I don't know what you're trying to do

if you can describe it then it'd be easier to say

[crimson jolt]

Input is a name variable, and based on the name I want it to execute one of the cases

But, the cases cannot be hard coded cause they may need to change

[gentle urchin]

Im probably oversimplifying this

[odd ember]

right what I am talking about is what you are intending to do in a non technical context, not your own technical solution for it

[gentle urchin]

Something like this?

[crimson jolt]

Ah I see, well I have a hit event firing when a ragdoll hits something with its feet. I want to do something differently depending on the foot, so I feed to name of the bone to the switch

[odd ember]

can you explain what you want to do with them?

if it's just two variables you can use a branch

[frank rover]

Why do different feet have different bone names in the first place?

You could just store an enum whatever feet your character has and simply switch on enum. No need for bone names and stuff like that

[tight pollen]

@dawn gazelle

[whole dune]

Just 2 boxes moving identically along the spline with a distance between them

[tight pollen]

or someone?

[gentle urchin]

Like in my short clip?

[whole dune]

yes

but without adding another timeline for every single object

[crimson jolt]

@odd ember Well it's a long story. I think I'll just make a custom macro for it, but thanks for your help!
@frank rover The data is coming directly from a hit event so there is no need for a enum, I can just grab the foot name

[gentle urchin]

Using the same timeline (or tick) for every object

[whole dune]

same timeline, multiple carts in one blueprint

[faint pasture]

@whole dune Do you want the objects to be oriented tangent to the spline or pinned to spline by 2 points?

[frank rover]

Wait, are we talking about what type of shoes a character has or if the left or right foot touched something?

[faint pasture]

pinning to spline will be much harder, but oriented to the spline is ez

[dawn gazelle]

Sorry, should only need these changes.

[crimson jolt]

If it was the left or the right foot that triggered the hit

[tight pollen]

now when i set first index 30 and last index 20 in return index i have always 0

[odd ember]

the left foot has a clown shoe and needs to make a horn noise, the right foot has a loafer and needs to make a shoe sound

[whole dune]

from start to finish…

or what exactly do you mean?

[frank rover]

Okay in that case you could switch on name and just make sure you set up the skeletons right. Or just compare to a data table of left and right bone names by skeletal mesh or whatever. The first thing would be the best, tho

[crimson jolt]

@frank rover Yes and that's what I was doing, but perhaps you missed my original question. I was wondering if it is possible to assign a variable as a case, instead of hardcoding it

[tight pollen]

I've tried everything and always have either Return Index 0 or Infinite loop

[frank rover]

Idk. Can you open that standardmacro and take a look at it? :)

[crimson jolt]

Well I just made my own macro for it anyway xD Just needed two branches. It was more of a convenience thing, the logic is still simple

[low hound]

Is there a way to control the tick order of actors in the same tick group?

[tight pollen]

i maked like you

and return index is always 0

[dawn gazelle]

Can you provide a screenshot of your code?

[faint pasture]

Like this?

or like this?

[gentle urchin]

Right, as i was saying, im using the same bp, and a common tick ( or timeline) to do this as shown in the video. Manipulating it with tick is easier imo

[tight pollen]

@dawn gazelle

[whole dune]

like this

the object on the spline

[whole dune]

how?

[whole dune]

yes

but how

[faint pasture]

On tick

Position += Speed * DeltaT
OffsetPosition = Position + Offset

Different objects would have different offsets

and that's all along the spline

[gentle urchin]

Exactly

[faint pasture]

it won't respect distance from object to object but distance along the spline. Respecting distance between objects would be pretty hard and not trivial

[gentle urchin]

used a component just for this mockup, but the same idea goes for any actors

[whole dune]

so is it better with tick than timeline?

[gentle urchin]

I'd say so but people will disagree

[faint pasture]

Depends, does it have to happen all the time or just sometimes?

[gentle urchin]

Timeline gives you some handy user friendly controls

[faint pasture]

doors don't update all game long, smooth chase cameras do. That's the difference.

[gentle urchin]

using tick, you'd need to do that by yourself

Yeah only update if there's something to update

flow control.

Its one of the main reasons why tick is frowned upon 😄

[whole dune]

it looks so much simpler on tick

[dawn gazelle]

Not sure why you may be running into issues as it does look to be the exact same. This works on my end just fine.

[gentle urchin]

that looks counter intuitive 😄

[whole dune]

what do you mean?

the carts always have to follow

[gentle urchin]

Is it a constant motion

or is it just "the train may move when X happens"

[whole dune]

nah, but i can just control the speed variable, right?

[gentle urchin]

Yepp you can

[faint pasture]

Tick

[gentle urchin]

but speed != velocity , if you care for it

[faint pasture]

just add an offset into your location for distance along spline and you're good

[whole dune]

is it more expensive to performance than the timeline?

[faint pasture]

Timeline is just a temporary tick. Use tick unless it's meant to only happen at certain times

[whole dune]

so current distance + x?

[faint pasture]

yes

[whole dune]

oh no

thats were i got

and its not good

[faint pasture]

show what you have again

[whole dune]

oh wait

theres no lerp

[runic parrot]

Hi! does anyone have any idea of why the capsule is not centered on the floor? The parent of this object is base "character"

[whole dune]

so it should work smoothly

[whole dune]

i actually had to use a lerp and adding to it caused it to stretch etc

[faint pasture]

you don't need a lerp

[whole dune]

but this method doesnt require lerp

awesome

tysm

gonna try it tomorrow

[faint pasture]

Is this meant to be a loop?

Or does it stop at the end

[whole dune]

?
So the carts go back to the beignning

[faint pasture]

is it a closed loop or a spline with 2 end points

[whole dune]

the spline can be a closed circle

[faint pasture]

roller coaster or drag strip

[whole dune]

it doesnt really matter

[faint pasture]

ok then don't do the branch, just use a modulo to wrap back around when distance > spline length

[whole dune]

is the speed relative to the spline length?

[faint pasture]

CurrentDistance = (CurrentDistance + Speed x DeltaSeconds)%SplineLength

I'm not sure, idk if splines are in cm or alpha or percentage or whatever

110 % 100 = 10, wraps back around

[gentle urchin]

length is uu

speed is

your definition

[whole dune]

so absolute speed

[faint pasture]

I mean in splines, if it's in UU then you're good

100 for your speed will move you 100 cm along the spline per second

[whole dune]

ah

thanks

really

i thought about using tick but i didnt think it would be much different

[gentle urchin]

adding weight and height speed increase/decrease is also within grasps

if this is .. a rollercoaster game f.ex

[whole dune]

train game

[gentle urchin]

train tycoon ?

[faint pasture]

I'd use physics but that's a bit far from where you're at

[whole dune]

nah, actually driving

[faint pasture]

depends on the design tho

[gentle urchin]

Dunno, is physics reliable enough for that really?

I'd go for spline but thats just me being cautious

[faint pasture]

I would never use physics for the train -> track interface but for everything else yes

[whole dune]

I actually would love to use physics

[gentle urchin]

even with driving, downhill would go faster than uphill 😄

[faint pasture]

I got a train prototype working with wheels stably staying on 2 parallel rails but it'd be hard to make it behave nice. Would be fun for a chaotic game

[gentle urchin]

hehe that's what i'd imagine

[faint pasture]

If only we could have a perfectly smooth spline collider

[whole dune]

Thats realistic tho

[gentle urchin]

so a rollercoaster ment to repeat the same track reliably a hundred times over could be.. interesting

[faint pasture]

yeah it'd be more like a Derailment Simulator 2022

[gentle urchin]

xD

[faint pasture]

I'd still use physics tho for any train game, just have a custom solver/constraint to keep the wheels pinned to the tracks

Spring/damper between 4 points on the car body and the spline would get you close enough

use physics for the momentum and constraints between cars and traction etc

[whole dune]

i think the driving feeling would feel much better if its phyiscs based

[faint pasture]

Depends on what the game design is meant to be. If it's a logistics game then that's overkill.

IDK, driving a train seems like the definition of boring

[faint pasture]

sweet

[gentle urchin]

Sure, its oversimplified , not counting for carts weights and whatnot

[faint pasture]

now, increase Speed by the spline tangent's Z component

[whole dune]

i dont fully understand splines yet

[gentle urchin]

im increasing it based on the Dot for World Up (gravity)

[faint pasture]

Same thing

[faint pasture]

You can just break out the Z

[whole dune]

Wait, theres a direction node

omg

[gentle urchin]

there are all sorts of nodes 😄

[faint pasture]

Dot(Vector, Z) = Vector.Z

[gentle urchin]

Its to late for logic , that train has passed

[whole dune]

i feel like a caveman for only using the simplest nodes

its just so hard to find them all

[faint pasture]

That's the best part of BP, just type for what you want

[gentle urchin]

there's a billion things on a spline

[whole dune]

whataaa

[faint pasture]

And that's the worst part of C++, knowing what you want to do but not what the function is called

[whole dune]

omg

the possibilities

[gentle urchin]

Yepp

If im working on something new i often just check that first

[faint pasture]

Use Forward Vector and Right Vector to calculate the orientation of the object at that point

[gilded elbow]

Hi all. I'm looking to assign enemies a reference(within the game mode) as they spawn so that the Game Mode can destroy the one that has existed the longest on an event. Anyone know what direction I should go with that? Should I be casting from the Enemy to the Game Mode on event begin play to create a reference somehow?

[gentle urchin]

"whats avaliable here"

[whole dune]

Thank you so much guys im going to try it out tomorrow

[gentle urchin]

In case you dont know;

[faint pasture]

That's not what casting is. Casting is a type check / conversion, not another word for communication

[faint pasture]

What's spawning the enemies?

[gentle urchin]

dragging of from your object type will give you context specific functionality. Typically Getters are usefull. Bindings are also very nice 😛

[gilded elbow]

Eventually, an "enemy spawner" actor. As of now, a keyboard event

[gentle urchin]

I'd just do a manager ^

[gilded elbow]

Whoops, on that casting wording(still somewhat new)

[gentle urchin]

FIFO

[faint pasture]

For now you can just have the enemy notify the gamemode that it was spawned, but once you have a spawner it can handle that

You usually want references to flow in 1 direction if at all possible. Spawner already knows about Enemy, Enemy doesn't need to know about Spawner.

[gentle urchin]

If its singular spawner, the spawner can be the manager. If there's multiple...

[faint pasture]

depends on if it's oldest total or oldest per spawner, all depends

[gentle urchin]

True

[gilded elbow]

Ohhhhkay, I think I understand. So basically the spawner would store that information and the game mode could get/check the info?

[gentle urchin]

the game mode wouldnt need the info really,

[faint pasture]

In production the final result probably looks like GameMode handling the spawning of enemies at SpawnPoints and keeping track of them

[gentle urchin]

at best, gamemode would tell the spawner to destroy the oldest spawn

[faint pasture]

but it all depends on what you're trying to do. If it's a minecraft style spawner then have the spawner actor do it and don't bring game mode into it at all

[gilded elbow]

My current set up is that the player can use a certain amount of "battery" to destroy the oldest actor, so I think what I'm going to do is check from the game mode if there is enough battery to do so, and if that is the case, then the spawner can destroy the actor?

[faint pasture]

Is Battery on the pawn or PlayerState or GameState or where?

[gilded elbow]

I have the battery stored within the game mode

[faint pasture]

You making a tower defense?

[faint pasture]

Prolly wouldn't do that

[gilded elbow]

Similar mechanics, kind of half way between a tower defense and 5 nights style game

[faint pasture]

Game Mode is poorly named. They should have called it GameController along with GameState the way you have PlayerController and PlayerState

[gilded elbow]

Ohhhkay, that makes sense. So theoretically I should move what I have in the game mode into one of those others like GameState

Also thanks so much for the help, I really appreciate it

[late cave]

Huh... just had a look at the contents of my game mode, and it's just this... 😆

Haven't look in there for a good year or three... 😅

[gilded elbow]

Hahahhaha

I think I went with a misleading youtube tutorial or something at some point

Or just misunderstood one

[maiden wadi]

Keep in mind that UE4 is designed around the idea of match based multiplayer gameplay at it's core. It can still be very easily repurposed for a lot of game styles, but not every class type will be useful to everyone. GameMode in itself is a heavily multiplayer based class.

[silent rivet]

not sure if right channel but is there a way to do a 3d curve? for instance you input 2 variables and get back a third and the curve defines that? when i create curve asset it is only x, y. Maybe im missing something.

[vestal plinth]

does anyone remember how to do exec pins in functions? I thought there was an exec pin output type

in UE5

[maiden wadi]

Functions, or macros?

[vestal plinth]

oh, needs a macro?

thanks 🙂

you can't delete outputs anymore 😣

lol there's an invisible block in the panel hiding the delete button. it's behind that blank area

[vital aspen]

This one has me stump. In my Find Stack function. Just 1 variable has me mad. when it does a loop looking for a Stack of items and it finds a match and the item has less then the stack size. It then adds that item to the stack. The the Variable

Should return that item and the amount in that stack. It's just this 1 returns nothing but 0's. anyone have an idea

The variable Name is LocalQtyInStack

[flat scarab]

Hi. How can I close automatically close a Gate Flow Control after a certain period of time?

[odd ember]

show your setup

[desert owl]

Okay so I've spent all day trying to get this to work and everything I've tried has failed so idk if this is even possible without being super heavy. I'm trying to make an Interaction Actor component. All of the code on the tick works, but I'm trying to implement a system where it preferences the closes actor to the player (like if i'm right beside two actors that have this component, only one will accept input. the code will have to fire on sequence line 1 somewhere.) this component this placed in. You can see the start of what I feel like is a solid idea on the Event begin play node.

[odd ember]

this looks very strange. what are you trying to do with that interaction component?

[desert owl]

Sequence 0 puts a white dot above the actor, indicating you can interact with it. Sequence 1 turns that into a button prompt and allows input.

[odd ember]

why are you checking these things per tick? every interaction in the game world running per tick just to check the distance to the player?

and then the player doesn't even have control of whether they can interact with it, but the interaction itself does?

[odd ember]

instead of the gate, use SetTickEnabled. done

[flat scarab]

Thanks!

[odd ember]

also FYI that delay does nothing on tick

if you want to change the interval between ticks you can do that

but putting a delay on tick isn't the solution

[vestal plinth]

Epic: please rename "delay" to "procrastinate". Thank you.

[desert owl]

The tick is just for the prompt and enabling/disabling input.

[odd ember]

that is "just" the entire interaction though

I would not recommend doing it like this

[surreal peak]

@flat scarab This looks like something you would do with a timer

[odd ember]

I'd center the interaction logic in an interaction manager that sits on the player or controller, and allow interactions in the world register themselves to the manager

then the manager can decide (based on conditions that it gets from the player) which interactions should be prioritized

[surreal peak]

Also, that random node is gonna create two different values if you are unlucky

Not sure someone mentioned that already

But maybe you want that, not sure what that code is supposed to do

[desert owl]

Alright, i'll look into that @odd ember but how do make it to where the prompt only fires on the closest interactable actor?

[odd ember]

if you imagine that an interaction can have collision, you can reshuffle priority every time a new interaction collision gets registered. if you need it more granular than that, you could reshuffle it on player input

or failing that, on tick for the manager

that way you reduce n amounts of tick from each interaction in world to a single tick for the manager

but you can get it without tick as well

[tranquil abyss]

So I have a little ability menu that I make and im trying to kinda get a Hover sotra effect or like Is selected effect on this list I did have it hooked up on click to use the ability but That is that the function I need Atm I scroll and It changes a index in the character and fires based on a map using the UI part to shot the abilities

I tried to do the scoll thing in the UI widget stuff but that was to hard for no reason

[frail pilot]

How do you capture on change visibility event in a widget?
Tried this but the function I pass isn't firing.

[odd ember]

that would cause an infinite loop if it fired

[tranquil abyss]

To be clear The top picture is in the character

the middle is the ability list being made of ability slots

[frail pilot]

How do you do it then?

[odd ember]

also no clue what your function does

you link another event

that will fire when visibility changes

use the CreateEvent node

and I believe you can change visibility by using SetVisibility

the binding sets up another event to be callable dynamically when something happens

[tranquil abyss]

I guess that would make more sense then adding it and removing it

[odd ember]

but you need to have that event called in the first place to make it work

[tranquil abyss]

but that is not the main issue

[odd ember]

so I'd suggest putting the binding on BeginPlay

and then bind that event you created

or use the CreateEvent node

your choice @frail pilot

[tranquil abyss]

I tried to use a custom event

but I could not get that to work in the ui widget

I tried setting focus on the widget but I still want the character to be able to move

and also setting focus just did not work

• using scroll wheel to change the selection was way 2 hard for no reaseon

-Let me be clear

either I need to rework this in the UI blueprints

OR just get the index from the player of the current ability

and use that to change the style of that button

OR make it behave as like "IS hovered" but I did not see a node for such

[frail pilot]

would this work?

[odd ember]

possibly. I can't remember when Construct is called, but if there is no BeginPlay then yeah try that

[frail pilot]

BeginPlay is not popping in the contextual menu

[odd ember]

fair enough, try that then

I know there's a few widget construction events, not sure which one is the most correct to use

some of them run too early before the widget is fully constructed

but I think that's Init

[frail pilot]

ok ty

[maiden wadi]

PreConstruct and Construct is ran anytime the UserWidget is added to a new parent. Init is ran at widget creation. AFAIK all internal widgets are available at init, but exposed variables won't be set yet.

[odd ember]

which is why I'd caution trying to setup a binding at Init

[frail pilot]

I don't think I have too many options, there is construct, pre construct and On Initialized

[odd ember]

go with construct

it's the safer option

[frail pilot]

alright

[tranquil abyss]

I was so zoned out I thought this was an answer to my question LMAO

I was like how does this help me XD

[vast lion]

How big of a capture can I take with a scene capture component?

[scarlet sedge]

Dunno where else to put this, but I cant figure out how to make a collision mesh from my complex mesh on my 3d model. Anyone able to help?

I want to be accurate to the model

[mossy mist]

how do I restore blueprints

whenever i copy them into the project from the saved folders they are just the same as the current one

yet I know it is different

[icy dragon]

Copy the autosave one without renaming, delete the BP in Content Browser, and replace reference the the autosaved BP.
Then you can rename it back.

[mossy mist]

thanks!

[daring merlin]

Guys! Does anyone know how to setup a material that always faces towards the camera's current position? Any help would be much appreciated!

[bright harbor]

so, if i had a spline with a procedural spline mesh on it in my level, and i want to make it so the player can rail grind on it, how would i make it so the player snaps to the point they start grinding on, rather than at the beginning of the spline, or at the nearest set point on the spline? like just start grinding along the spline wherever they hit it

[hardy fable]

you probably want to use some of these nodes

[bright harbor]

alrighty, thanks!

[unborn compass]

Anyone got any advice for this? I have a widget component on pawn (overhead health bar) and so i bound this function in the widget and it has trouble reading player pawn. Is there a different way i'm supposed to reference the pawn that owns this widget?

error is "accessed none trying to read pawn name"

[wicked osprey]

Guys, I don't understand. What are the advantages of Data Asset over Data Table and vice versa? For example, for static item data. I noticed that many people use Data Asset, but Data Table is also suitable for this.

[dawn gazelle]

BenUI does a good job of going over the Pros and Cons on his site here:
https://benui.ca/unreal/data-driven-design/

[dawn gazelle]

Accessed None indicates a reference isn't set that is trying to be accessed. Do you get a big list of that error, or does it only appear a couple of times and then your bind works?

[coral lance]

For my game I wanted to create multiple playable characters that the two teams share how would I do this this is probably an easy concept but I am confused

[hollow steeple]

So trying to understand how to use gameplayTags for keys, and looking at Tom Loomans example he is plugging these. Looks like hes using a custom interface function i think? Im still new to unreal so not entirely sure, but any idea how if it is needed? Picture of it attached:

[coral lance]

is this for me?

[hollow steeple]

no

[gentle urchin]

Using interfaces for common interaction seem fair

What part are you uncertain about?

[hollow steeple]

Sorry for poor wording, but i'm confused on what it is essentially doing, and how i can recreate it.

[loud atlas]

I'm trying to set the roll of a spline mesh in a way that if it were a racetrack, it would bank. Does anyone know how I might go upon doing this?

[dawn gazelle]

Yes, those are interfaces. An interact interface is usually used when you have multiple classes that need to react to something. For example, you could be doing a line trace, getting a "hit actor" and then calling the "interact" interface on that actor. If the actor implements the interface, it can then perform whatever it needs to do. This would allow you to use that single line trace to control things like doors, switches, lights.

You can create an interface by right clicking in the content browser, go to blueprints then select Blueprint Interface. You can name it whatever you like. Within the interface you can then define interface functions and include any inputs you would like to use in it.

Any classes that you want to use the interface call in need to have the interface added to them in the class details tab.

Once the interface has been added to the class, you can then implement the functions you set up - they're usually listed under the functions in the class.

You can then have that class do whatever it needs to do when the interact interface is called on it.

[hollow steeple]

Ah i see

Thank you

[dawn gazelle]

What do you mean by share?

[coral lance]

I mean I want to create 5 different characters each with a unique ability. I want these 5 playable characters to each be selected once and have one character be on each team

[gentle urchin]

So like LoL,

with a common pool of characters to pick

Unique picks only

[dawn gazelle]

Then you'd keep an array of some kind that tracks what characters are available for each team.
Eg. Use an array of the character class, each player as they select a character , you remove the selected character class from the array. If they deselect it, add it back to the array. As you have two teams, you'd need to have two arrays.

[coral lance]

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/Blueprints/BP_HowTo/WorkingWithArrays/ would I be able to follow this to get the concept?

[coral lance]

yes kinda like this i was thinking more like battlefield except only one class per person the whole game

[gentle urchin]

I'd start simpler, keep the multiplayer part out of it, and just see if i could get the idea working with a single player picking to different arrays

[coral lance]

https://www.youtube.com/watch?v=tizvqNW6OOs i was debating buying this asset as it's basically what I want

[hollow steeple]

@dawn gazelle Sorry to bother you again, but you were the only originally helping me with the key system suggesting i should use gameplayTags. However even after looking at guides on them im still extremely confused. I created the gameplayTags for the keys i want to use, but i'm completely failing at understanding how i can use the gameplay variables at all. I know in the example you gave me yesterday it was playerkeys and required keys but how do gameplayTag variables work?

[dawn gazelle]

You can create a "GameplayTag" variable for the key within whatever actor you're using to grant the player the key.

On the player, you want a gameplay tag container. Any time you 'pick up' a key, you add the gameplay tag to the player's "Key Container"

Your door can have a GameplayTag or a GameplayTagContainer variable for the "required" keys. If you would only ever care that the player has any single key, then just use a GameplayTag rather than a GameplayTag container. You can then check if the player's "Key Container" has the tag.

You'll want to set up the key actor's tag and door's tag to be expose on spawn and instance editable. This will allow you to set the key actor and the door actor's granted and required key when you place these actors into the scene.

[hollow steeple]

Ok so do i create the players "key container" on the player blueprint?

[dawn gazelle]

Yep

[hollow steeple]

Alright, and so how can i get the players key container variable onto the the key pickup blueprint to add it?

[dawn gazelle]

Depends on if it's multiplayer or not. If you're using an interface, you could potentially pass in a reference to the character making the interaction happen (much like the instigator pawn in the screenshot you showed). From there you can manipulate and access the variables of the character. If it's just single player, you could just do a GetPlayerCharacter and cast to your custom class.

[river mason]

I have no idea how a material would face the camera all the time but I found this tut recently while trying to figure out how to have textrender facing the camera all the time. If it doesn't help just ignore:
https://youtu.be/58tCYEEPgLQ

[hollow steeple]

Well it will end up being multiplayer but at its current state isnt.

[dawn gazelle]

So then you'd want to use the interface most likely, and pass in the interacting character as an input into the interface.

[hollow steeple]

Ok, not sure how i can do that haha. I understand how to add a input to the interface but im not seeing the variable in the list

[dawn gazelle]

You should have your character class there. An example here, I just have a BP_Spline I have created in the project and I can set that as the variable type for the input.

[hollow steeple]

Oh okay so im inputing the character blueprint as a class?

[dawn gazelle]

I think it might be as simple as doing this. I have this on a material that I use on a textrenderercomponent and it makes the text always face the screen.

[dawn gazelle]

Yes - that'll allow you to pass the reference of the character that was performing the interaction through the interaction interface. Then your object can manipulate the values of the character that performed the interaction.

[glad sigil]

Not sure if here is the correct place to ask this. I'm making a local multiplayer game (No network, couch) that doesn't have Split Screen, so everyone sees in the same viewport. However I don't know how the HUD flow should work in that case, should we have a custom one only for that mode?

[lilac storm]

can someone please help , why this simple cast is failing ?Ovelap events are working pretty fine

[gentle urchin]

its the wrong class coming in

print its display name

Adding sockets at runtime, are those somehow saved in the static mesh component itself, so they persist through mesh changes? 😄

Nvm, they're added to the SM ..

[signal hornet]

Hey guys I've got a blueprint system for when a player enters hitbox it changes their health value to 0 and they die & respawn.. works fine for client (player 1) but it doesn't work for other players on the server. I'm trying to figure out how to implement a server sided replicating health and respawn system. Haven't found any tutorials out there to help with this so any help here would be much appreciated!

[robust gate]

The overlap detection with the kill hitbox should be done on server only, set the health value on server (health should be a replicated variable), and the die and respawn probably needs to be done on server too (and maybe also networked to clients if there are associated FX)

[robust gate]

Your problem here is this needs to only run on server. And you are grabbing only the first player controller. (index 0) Which means you are only checking, killing, and respawning the for the first player controller. All player controllers exist on server - there will be 1 per player. So you need to do this operation for each of them.

One way to do this is to grab the gamestate, get the players list (list of playerstates) and get the player controller from each playerstate and operate on each of them.

[robust gate]

To make sure your code only runs on server, add a 'has authority' macro.

[languid linden]

Can anyone help me how i can make a AI movement bp without using navmesh or behaviour tree. any tutorial will be helpful.

[robust gate]

To clarify, you want to make an AI move but without using a navmesh of a behavior tree?

[signal hornet]

Thanks @robust gate i'll see what I can do 🙂

[languid linden]

yep.

[icy dragon]

Crosspost from #ue4-general

[languid linden]

yeah, anyone give solution is fine.

[icy dragon]

See #rules no. 7
Crossposting without prior redirect is frowned upon because it can cause confusions.

[signal hornet]

@robust gate what node can I use to specify multiple player indexes?

[robust gate]

I don't know of any tutorials for that. Generally most people doing ai use the navmesh and behavior trees.

But if I was trying to do this, I'd start with a character class and try to feed it input as if it was a real player. Just try to get it always running in one direction. Maybe try this out using the third person template. Once you get that working, try to add some simple logic where it tests if there is collision in front of it while running, and if there is, it turns left or right. Keep expanding on it til you have what you want. 3d pathfinding is gonna be pretty difficult without using a navmesh tho.

[robust gate]

I'm not sure what you mean. Are you trying to iterate through the player array from the gamestate?

[languid linden]

thanks, thats what i'm currently doing, i'm using set actor location and because of this pawn is not playing movement animation bp. it just teleport from one tile to next.

i'm having problem which one i should use to move pawn in one direction which actually looks moving.

[robust gate]

Yeah, you dont want to use setactor location probably. I'd try to get it moving the same way a player-controlled character moves. The more stuff you share there, the easier.

[signal hornet]

My BP was only calling for index 0 (client) and not the other players. I'm trying to reference the other player indexes to link into the 'Get Player Character' node.

[languid linden]

I want to move 4-5 pawns using events not through input like a simple chracters.

[robust gate]

If you got the player array you could get the length of that array and use that to do a for loop, feeding the index into the get player controller node. There might be an easier way to get the number of players but cant recall off the top of my head.

[robust gate]

I get that, I'm saying to actually get them to move properly, you might need to feed them fake input. Like call the function that giving input would normally call on a player controlled character.

Say you have an event that wants them to move to a certain location. First you need to set actor rotation on them so they are facing that location. Then you need have like a target location variable set and also set a new bool variable called like 'should move.' Then, on tick in that character, you spoof the move forward input for that characters as long as they are not at their target location or past it. Something like that.

[languid linden]

yep exactly i doing this.

i just need to know a node which makes pawn move from one target to next target but still play movement animation.

[icy dragon]

VInterp To

You can role out your own logic/transition for the animation state change.

[languid linden]

yep let me try this.

[robust gate]

If you are driving the characters movement through the natural input flow and movement anims arent working then your anim graph must not set up right would be my guess.

[languid linden]

Not through natural input, but through events in gamemode. when i call the event, pawns moves to that location like you see in turn based strategy games.

[robust gate]

What node are you using to actually move the pawn to the next location?

[languid linden]

I have set custom event which first get tile location i want the pawn to move then i get the pawn through get actor of class and then using timeline to set the pawn location to tile location.

[gentle urchin]

You'd need to manually calculate velocity as the input for the animationBP

[robust gate]

Ok. When you replied to me saying:
"yep exactly i doing this."
"thanks, thats what i'm currently doing"
That isn't actually what you are doing. You are not doing the input thing that I suggested, you are doing set actor location which is a completely different thing. Just to clarify.

[languid linden]

can i calculate velocity when using 'VInterp To' node?

[gentle urchin]

Sure you can

SetNewLocation -> SetVelocity(New Loc - Last Loc) -> Set LastLoc(NewLoc)

[robust gate]

@languid linden if you want natural movement input like I suggested, just call AddMovementInput on the character on tick til it gets where you want it. That's the function I was thinking of: AddMovementInput

[languid linden]

ok i will try this.

[gentle urchin]

Pawn doesnt have that does it ?

I read pawn, but it may be character, I dont know : D

[robust gate]

Hmm - not sure. Is it actually pawn or character? @languid linden

[languid linden]

I'm using pawn with skeleton mesh inside as i'm not using any direct movement inputs.

so i'm not using AddMovementInput.

[robust gate]

Actually, looking in code, pawn has AddMovementInput too.

Unless your terrain is perfectly flat, if you are doing humanoid type pawns, I recommend using a character with a character movement component instead of a basic pawn. With SetActorLocation ur gonna have to find the exact ground height for each tick too. If you start tracing for it, at that rate you might as well just use the prebuilt character.

[gentle urchin]

Ah, nice! Good advice 🙂

It's not trivial to make ones custom CMC

easily underestimated , depending on requirement of it ofc

[languid linden]

yep looks like you are right.

[robust gate]

Agreed. CMC has its issues but its got a ton of useful stuff too that isnt easy to do from scratch.

[trim matrix]

Question I have a manual shift knob in a car, how would you realize animation of the gear change on shift knob (only rotation trasformations) so that it matches gear of the model? All the data is already available in an event (previous and current gear)

[daring merlin]

Sadly I have to do it within materials as I'm using it on instanced meshes, cannot do it in blueprint. Thank you for the try tho!

[gentle urchin]

ISM's always facing camera?

[icy dragon]

Impostor foliages, maybe

[dusty oxide]

Hi, I would like to make a black hole trap in a 3rd person game.
I used AddForce for the pulling effect which works, but it works way better when the pawn is in the air, and not so much when standing.
Is that because of friction? Can someone point me to a direction?

[daring merlin]

Thank you for the help. Sadly this works a bit differently from what I'm looking for, as the built in function 'copies' the camera's rotation, while what I'd need is a material that faces the player camera's current world position. If the camera rotates but doesn't move/change worldlocation, the material shouldn't rotate either. Been stuck on this one for a while ><

[gentle urchin]

How many are we talking about?

since you *need * it in the material

I assuming thats the reason

[icy dragon]

[context needed]

[daring merlin]

Foliage leaves (2d planes) turning towards the player, but instead of using the camera's rotation, looking towards a world position (=player camera's current position)

[icy dragon]

Just what I thought. Built in Octahedral Impostor does exactly that, you might want to check out the materials and see how it's done on World Position Offset.

[daring merlin]

Context: tons of these already placed in an openworld map, just needs the rotation from the material

[icy dragon]

You can get camera position in material, and use that to determine the rotation of the vertices

[daring merlin]

I need to look into this, as I didn't have to deal with this yet. May I PM you for details in case I'm stuck? Thank you for the directions.

Ty for the reply. Sadly it aligns the material to the camera's rotation, while I'd want it to face the camera's worldposition. (If you have the player camera pointed exactly downwards towards the ground and rotate it, the mesh material should not rotate, as the camera's location doesn't change)

[digital bough]

Hey guys, sorry to bother but is there a way for a smooth third person camera to a sidescroller one? not just activate i would love it with a blend and also it messes up if i activate the sidecam because it always rotates with the boom before its even activated.

[vague sierra]

if i set up a blueprint by some sort of mechanism through another blueprint, and it then has new components. can i save that now to the blueprint itself, so it is not scenerelated ?

[unreal quail]

I can't find the Rotator to Quaternion conversion function in bp

anyone knows how it's called?

[icy dragon]

No, I disabled DMs because nobody reads About Me section.

[unreal quail]

why is it asking me one then

🥲

yeah I just found it

also I see that you can convert a direction vector to a quat

but not a rotator

this is some really weird stuff going on

why? :0 I actually like them

yeah true

[icy dragon]

Wait until you encounter the dreaded gimbal lock issue

[unreal quail]

huh what's that?

btw I'm trying to rotate a box extent but it seems that just rotating it as a vector is a pretty bad idea

found it

oof looks serious

[vague sierra]

if i hit "apply instance changes to blueprint", it deletes everything, i worked out in constructing that actor...

[gentle urchin]

Are there any bug with splines where fetching the last point somehow is bugged?

Whenever i get the distance at point + 1 (which i've assured is 3, with a spline length of 4), throws me array access violation

Nvm, it's just me being dumb

Added a point to the spline while not updating the spline

[wary shadow]

Hi all, do you know how to constrain the HMD position? I’m piloting a drone but when I put on the VR the FOV is translated along the drone z axis (so I can see the drone by looking down)

[hot lotus]

Hello everyone, could someone explain to me how to use the SaveGame flag present on the variables? All information I found on this topic are really old. I want to save a variable on actors presents in the level.

I already have a save system on structs for the player using the save/load to slots, and I want to save some variables on actors already present in the world

[torpid hound]

what's the easiest way to get a blueprint to have a compilation warning?

[last abyss]

while loop with a condition that will never be true ?

sorry, never false

or true... it's been so long since I've used a while loop I don't even know anymore

[torpid hound]

Apparently that's just fine as far as UE is concerned 😄

[last abyss]

XD

that should throw an infinite loop error ¯_(ツ)_/¯

[torpid hound]

yeah, but that's a runtime check, right? I'm looking for compile time

[last abyss]

ah yeah

[torpid hound]

looping a node's execution into itself causes a compile error

[tawdry surge]

So will using a create or spawn node without selecting a class

Did you want a warning or an error tho?

[last abyss]

same for using deprecated variables in blueprints right?

or is that also during runtime?

[tawdry surge]

Never tried that

[torpid hound]

perfect, thanks

[dark crow]

SaveGame flag will mark it to be serialized iirc

[hot lotus]

How do I use this?

Is this saved along the save to slot? Then how do I load it?

[dark crow]

Well, if you just wanna save and load you don't even need to flag that

That's mostly a flag for C++ from what i've seen

[hot lotus]

Ok thank you for the answer. I'll use a custom save system then!

[random plaza]

i'm getting an infinite loop detected error, anything i'm doing wrong?

[dark crow]

Seems like it checks against the flag in FArchive::Serialize()

[hot lotus]

I never used this, but I guess this is not what I am looking for

[dark crow]

Yeah, it's for data compression, doubt you looking into that :p

[hot lotus]

I think they should change the name of this flag then haha, this is misleading. Thanks again

[dark crow]

You can use a timer too in case since you have a delay

Store the handle and make it loop then check every loop for the condition

[random plaza]

👍

[rose elbow]

anyone have any idea why this isn't working? The variable is being activated but whenever I press the spacebar nothing happens

because thats something so simple I didn't feel the need to include it but here you go

yep I get the print string i'll try put it in different places

initially I thought it may be because I restricted my characters movement along the x axis but changed that and it still does nothing

and the string only goes off when the variable is true so idk why it isn't working tbh

[agile hound]

Hey everyone, i’ve been struggling for a full week on this problem and I’m wondering if anyone could help me.
I’m working on a turned based rpg and i would like to draw some splines to show who is targeting who similar to ff12 (see picture).
I’ve been able to set up a print string that confirms that when i hover the target in the menu, it displays the correct enemy name.
Any advice? 🤞🙏😂

Where would i code the spline? In my character blueprint? Combat component? Target widget etc… and what would that code look like? I have a unitbase-> party unit base & enemy unit base as child

[earnest tangle]

Two methods come to mind: 1) Particle system with a ribbon effect 2) Spline mesh

[agile hound]

Then my characters/enemies are children of those

[earnest tangle]

A spline mesh should be reasonably simple way to do it I think - it might be easiest to have a separate "target indicator" actor or such, which you spawn when needed

[agile hound]

Oh… never heard of the ribbon effect… which would be better between the 2?

[earnest tangle]

No idea which would be better tbh :)

[agile hound]

Haha

[earnest tangle]

It's not hard to implement this, so if you later decide you want to try the other method it shouldn't be an issue

[agile hound]

I thought of just and arrow above the target’s head but… not my vision lol but it could work for now

And if i’m to use the spline method… i code in my character?

Then i try to find the target to make my spline end on the target?

[earnest tangle]

You could have it in the character or create a separate actor for it

[agile hound]

I feel like i’ve tried this 20 times this week hahahaha 🤦‍♂️

Aw just a new Spline actor

[earnest tangle]

Both methods would work so it's mostly a question of which you find easier to use

[agile hound]

BP_targeting spline for example and code there?

[earnest tangle]

For example yeah

[agile hound]

Hummm interesting, and as for the particule ribbon technique… any help on that to give me an alternative if i keep struggling hahahah

Thank you very much by the way.

[earnest tangle]

I think if you google for "ue4 particle ribbon" you'll find some info on how that is used

[agile hound]

Will do perfect thanks 🙂

[gentle urchin]

What about the material with world position offset?

Then all you need is a 'pole' between char and ai

[earnest tangle]

interesting idea, that would probably also be doable

might be a bit more complex in terms of the maths since you'd have to do all of it in the material

[chrome nymph]

how do you change the viewport in perspective to be top down but still remain in perspective

ideally - centered over an object (i'm trying to use an image as a reference, not sure if theres a beter way)

[odd ember]

move the camera high enough

press f to focus object

pan camera down to the ground

zoom out

[chrome nymph]

the problem is the viewing angle

[odd ember]

well there's a remedy for that

[dull kraken]

Hello, does anyone how can I replicate this? I'm new to blueprints and I know it uses raycast and forces but I'm still lost aha. any help would be wonderful. this is the link: https://www.youtube.com/watch?v=RjUTtGTk8Js&list=PLtRCuWjjYCfBmPBT7ja1tq7IExd7dbJjZ&index=4&ab_channel=KlasKroon

[hardy ferry]

Can anyone spot what is wrong with my BPs? Currently it thinks the player is not hiding (is hiding == false) and I don't understand because their Y location is less than 1 ( they are hiding if it is less than 1) (red circle for Y location printout).

[random plaza]

can you save the game in the construction script?

[chrome nymph]

how do you pan it perfectly to the ground without overshooting?

[odd ember]

gimbal lock should prevent overshooting?

[chrome nymph]

nvm i just realised you can change the wireframe mode to lit

doh!

thanks anyway 😄

[dawn gazelle]

Where is your "hidden" function being called?

[hardy ferry]

Its being called from just a collision box kinda behind the backdrop

[dawn gazelle]

Where in your code is it being called?

Your screenshot shows an overlap event, but there's nothing calling "Hidden".

[hardy ferry]

sorry

[dark crow]

I would not

[dawn gazelle]

That's just checking the boolean "IsHiding". Something needs to be calling this code in order for it to activate.

[hardy ferry]

oooh

so like on the event ticker on my character?

Thank you for your help, I'm very very new 🙂

[gentle urchin]

Im probably underselling it massively, but wouldnt it mostly be some fadein/fadeout with a heightoffset value in xy direction of the mesh ... 😅

[earnest tangle]

maybe but that's a lot more complex than placing a spline lol

[gentle urchin]

Well spline with start, end, tangents

I suppose you'd only need X and Z tangents.. scratch that

[random plaza]

can you skip an index in a for each loop?

[gentle urchin]

Sure

Which one

You can do custom forloops aswell

Doing say every other index f.ex

For i := 1 to 15 by 2 do ....

😃

[random plaza]

cool

i'm using blueprints so i'll have to look up how to do it there

[gentle urchin]

If you wanna just dodge specific index(es) you can do branch

Every other would just be branched on (index % 2 = 0 or 1)

Depending on if you want the odd or even numbers

[tidal marlin]

Hy. Why box and sphere trace for object ignore landscape?

[tawdry surge]

Trace channel on the landscape collision is pry ignoring visual traces

[tidal marlin]

for absolutly all type of traceses?

Why linetrace for object work with landscape?

[unborn compass]

big list of them. why would "get owning pawn" not work when run on a widget component of that pawn... or is there a better way to reference the pawn that owns the widget component

[dawn gazelle]

From a widget, you do not have the means of accessing an actor that has the widget component that the widget is in.
"Get Owning Player Pawn" gets the player controller that owns the widget and attempts to get their possessed pawn.

Now, your player controller may be possessing a pawn, but not necessarily the "BP_Piece" pawn, so your cast could potentially be failing, but you have no check on your bind to ensure that the cast succeeded, so the cast could be returning a null reference and you're still trying to pull data from it, hence the errors you're continually receiving.

[unborn compass]

i see

so how can I have the overhead healthbar percentage set? will I have to do it inside the pawns bp?

I tried but couldn't seem to access particular variables inside the widget from the pawn either

[dawn gazelle]

You could feed in a reference to the pawn that has the widget component into the widget. It's a bit of a mess to do it though... (The "owning pawn" is a variable I created within the widget blueprint)

From there you can do what you need with that pawn inside the widget itself.

[unborn compass]

oh so this is setting the widgets "owning pawn" variable from inside the pawn blueprint on beginplay?

i see

i'll get back to you if it works lol

[trim matrix]

I'm trying to have my player range hitbox (swinging a sword) overlap every rock placed/spawned inside the game, right now it only interacts with one rock though, tried various connections but to no avail, does anyone know how to solve this?

[unborn compass]

this worked, many thanks

[trim matrix]

Hello i am experiencing a problem these days and i need your solution, https://prnt.sc/_y4YvuQrlI5d

i am trying to play the sound of the media

it works perfectly when we want to show the video

but i dont have sound

inside the media player when i am play a media source i can actually hear the sound

althouth there i cant

am i missing something?

after playing and closing pie

i try to hear again in media player

and i cant hear anything

i have to reload the engine

oh found it

i was actually missing the start node from media sound

[prisma prairie]

This has got to be simple, but I cannot seem to find a good youtube video or question answering it. I want to connect two Static Mesh actors together when they overlap. I have tried this to no avail... The branch is true and they are overlapping, but it doesn't snap into place. Any help?

Neither are skeleton mesh actors

both have sockets

[mental trellis]

Does the named socket exist?

[trim matrix]

i found a solution my problem hell yea

[prisma prairie]

It exists on one of the actors, the parent one

[mental trellis]

Idk, maybe try removing it from the attach node see if it works. Or try attaching the root components of each actor directly. Shrug

[trim matrix]

make sure that all actors have overlapping activated in their collision

was struggling cause i forgot to check that the other day

[mental trellis]

I assume you know they're overlapping becayuse of the debug string?

[prisma prairie]

yes, I have the print string and the branch to confirm they overlap

[manic knot]

Hey weird question guys!: is it possible to use a BP actor like a Spline mesh? For example make the BP actor conform, twist, and bend like a regular spline mesh. This would be for a road with configurable options for each segment

[gritty trout]

I am making a weapon for VR. My problem is that when I release the weapon bolt it stays in place, what nodes should I look at to, not instantly, move the weapon bolt back to its local origin?

[unborn compass]

Simply put I want to hide this particular pawns health bar when i'm possessing that pawn, this works to hide it but doing the reverse does not work. ie unpossessing does not bring it back. any input is appreciated

[trim matrix]

i think youre unhiding it an extra time

since the boolean is both ticked and you have a seperate function

oh i see thats a network thing my bad

[unborn compass]

yeah i should probably post on multiplayer

[trim matrix]

maybe a toggle node could help

in some cases that can fix those type of problems

but im not sure if thats implementable in this case

[gritty trout]

How would I slowly move a child mesh locally?

[trim matrix]

timeline and a vector prolly

[ruby badge]

Does anyone have any insights in to why a blueprint setup with nested geometry, with a translucent material, does not show up in raytraced reflections? Is raytracing unable to handle semi transparent objects? https://forums.unrealengine.com/t/translucency-not-showing-on-reflections/151711/4

[wind void]

I renamed this event node in the Project Settings, (actually I renamed over 14)
Is there a way I can sync this to be renamed as well? Or a easy way to convert it to my NEW name?

So far deleting this node and placing the new node renamed seems to be the only way to do it, but that takes time. Looking to see if there's a quicker way to do it.

[gentle urchin]

there's no quick fix

only hard work

[tiny meteor]

hi, anyone have an example of how to animate a material along a spline mesh

for example, a pipe with water flowing down it

[wind void]

Hey is it possible for a function to have TWO white spline outputs?
Much like the branch?

It would be so nice if I could just remove the Branch node all together.

[hexed jungle]

Sorry if this is the wrong place but, Whenever I delete an asset even if it's not being used in the game world, it takes FOREVER and uses up all of my RAM (64gb) until the computer crashes. Sometimes it successfully deletes most of the time not. My RAM usage while the world is open is usually around 12GB.

Anyone else had this?

[maiden wadi]

Not without making a wrapper for it. You could technically make a macro for it. Pretty small thing to fret over though.

[wind void]

No idea what either of those things are. But you are right, pretty small thing. 🤷‍♂️ I just was wondering 😂

[maiden wadi]

Wrapper is a terminology of putting things into a container that usually makes them easier to use. Macros are sort of like functions, but slightly different. Allows latent actions and multiple input and output execution pins.

[maiden wadi]

Sounds like it's still connected to something somewhere. You should check your reference viewer to make sure nothing has a pointer stored to the thing you're trying to delete. Usually speeds up the deletion process.

[pine trellis]

hey can someone help how I need to know how to get to the node that does this but for a widget as I dont need it on the viewport

the node is called set position in viewport

I dont want it on the view port but on the widget in front of the player

[maiden wadi]

By player, do you mean character, or screen?

If it's in world space, it's in a widget component, you move the component and not the widget itself.

[pine trellis]

well they way it is now is on the viewport, I need it to be on the widget, it follows the target which is a chatracter with a component attachted

its projecting to the world screen

or is there anyway t o make the widget see what the view port see and does?

[unborn compass]

real quick anyone whats the proper node to find actors within a collision sphere

[maiden wadi]

SphereOverlapActor

[unborn compass]

does this use a newly "generated" sphere or can it use one thaat is already part of my projectile?

[maiden wadi]

New one. You can just get overlapping actors from your sphere.

[unborn compass]

gotcha thanks

alright, one more thing, how to get distance from center of the sphere?

also what is the array "object types" input supposed to contain?

[maiden wadi]

If you have your own sphere already, I'd use that, it's a lot cheaper.

[unborn compass]

let me just explain the use case?

[maiden wadi]

The ObjectTypes on the SphereOverlapActors is what object types to query for.

[unborn compass]

its a fireball ability that should impact one target but then explode to hit a wider aoe

so i was thinking about having a second collision sphere that represents the aoe and just checks which pawns should be hit by the aoe

[maiden wadi]

Depends on how instant you want it to be. Immediate, I'd probably just use the SphereOverlapActors for convenience. If you're looking at a half second effect of a growing damage sphere, I'd definitely have a preset collider on the projectile.

[unborn compass]

ok sphereoverlap it is, but still just don't get what object array to put into "object types"

nvm i got it

[maiden wadi]

Collision profiles have an "Object Type"

[unborn compass]

tyvm

[echo salmon]

Shouldnt this "loop" between the two platforms, when platform1 finished it call the interface and then platform2 start moving , when it finished it start the platform1 from the beginning . My results are when the platform2 finished , the platform1 starts and keeps loop and doesnt call the interface event .

[maiden wadi]

First off. Why is this an interface function?

Second. Timelines are a VCR player. You've finished the tape and never pressed rewind. Event needs to play from start.

[echo salmon]

i want to switch between the two platforms, move platform one when finish move platform 2 and goes on.

[maiden wadi]

Yeah, but this is all in one class. The interface isn't necessary. It's a waste of programming time for something that could just as easily be a simple CustomEvent, and requires a second class as an interface to function.

[echo salmon]

Ok i see

[maiden wadi]

Interfaces are meant to allow multiple wildly different things act the same, or allow one thing to interact with multiple wildly different things.

[echo salmon]

Custom event is better for this situation ?

[maiden wadi]

A good use of an interface function would be something like a timer. You could pass an object to a widget and the objects could use that interface to return a timer value. And the widget could call this interface function on the simple object it's passed. It allows the widget to access multiple different classes without casting to them all.

Another use is for like an FPS game. Being able to open doors, pick up objects, press keypads, interact with NPCs, all from just pressing F, doing one line trace and calling the interface function on the hit object without casting.

[echo salmon]

I see

[maiden wadi]

When calling events in the same class, interface functions are entirely useless unless they are already in use by something else that actually requires the interface. Cause you don't need to cast to self's class to access that function.

[echo salmon]

In my situation what is the best practice to use ?

[maiden wadi]

Just a simple custom event.

[echo salmon]

oki, appreciate sharing your knowledge and helping me out !

ty

[unborn compass]

this is almost working to deal damage based on how far away someone is but the only issue is its reversed, ie doing more damage to people further

i'm not good at math can anyone tell me what to do to fix it lol

[surreal peak]

@unborn compass This is not how you calc the distance

Remove the abs and the + node

Recomine the vector pin and call VectorLength on it

[rustic sonnet]

Hi everyone, have been trying to setup an ai car and havent been able to figure out how to slow down the car faster when braking, any suggestions?

[unborn compass]

okay then how to "reverse" it?

[surreal peak]

What are you getting from the Normalize to range again?

0 to 1?

Or 0 to 35?

[unborn compass]

1 to 35

[surreal peak]

Well 1 to 35

Yep you can do what datura posted. Or even calc 36 - result. That will be 35 for 1 and 1 for 35

Daturas is nicer though

[unborn compass]

just trying it out

[surreal peak]

The node alone won't work though

You should plug the damage into it

Not the distance

At least for your code

[unborn compass]

huh?

[surreal peak]

Nvm just mimic their code

[unborn compass]

yeah i still need to reverse this though

still doing less to the guy it hits than people around it

[surreal peak]

It is reversed

OutRange is swapt for Min/Max

Check the image again

[unborn compass]

i see now

gratz

thank you everyone

[wind void]

I got this Warning. But I can't find any SpawnActor nodes without the class? Every SpawnActor node has the class HardCoded like so.

[teal talon]

How can I make the rotations here a var so I can edit them per usage in editor

[wind void]

The Rotation Rate?

[teal talon]

Yes

I want to set it different per object in game but as it is now when I change one they all change, how do I break these out so I can input var as needed.

[wind void]

Well... You need a way to differentiate each object. Then you can just set the rotation rate depending on which object it is.

[teal talon]

oh, I'm sorry. You add it then you can set it.

thank you!

[wind void]

Yea most objects you have to add it before you can modify it's values. NP 👋

[teal talon]

Make so much more sense, I kept trying to get it from the add, and was just stuck, like wtf. I'm such a noob. Thanks.

[wind void]

We've all been there XD

[teal talon]

I'm coming from Minecraft development in bedrock. I love UE4 so much.

[thorny knoll]

Hello, everybody

May I get some assistance?

[loud atlas]

Maybe?

[thorny knoll]

😳

[wind void]

Usually you post your question FIRST. So we know whether we even CAN assist.

Different people know different things. So nobody can actually say they can assist you until they know what the problem is.

[thorny knoll]

Ah, sorry. Force of habit

I'm trying to create a new volume that, once the player hits, takes a life away and teleports them back to a checkpoint

I have a checkpoint blueprint actor in place, I just don't know how to make it work with the new volume. I also need to make a lives system

which... I haven't gotten to yet cause I need to replace the generic KillZ volume

[wind void]

Use this. On overlap, teleport them to whatever checkpoint.

[thorny knoll]

I'm trying to fiddle with it but I think I am doing it wrong

I can't get the components of the checkpoint to be set within the new killzone volume I created

[wind void]

You'll have to elaborate

[high fractal]

And they never heard from him again.

[unborn compass]

Hey guys so I was just designing this event in a child class and copied it into the parent because I want it to be standard but the event doesn't trigger anymore for the child class

it doesn't even run the print statement

bottom pic is the playercontroller that calls the function and the main function is on my parent pawn class

any help appreciated and let me know if you need additional info

[high fractal]

So the server isn't actually calling it?

[unborn compass]

which

[high fractal]

Does it work in Standalone, Listen or Client?

[unborn compass]

it worked on all of them when the top function was in the child class

and i was just messing around with it but SpellCast (server) was "run on server"

[high fractal]

Put some strings after the nodes in the top one and see if any of it is firing

[unborn compass]

oh

i figured it out

[high fractal]

That was fast, what was it?

[unborn compass]

i hadn't deleted the "startspellcast" on the child class

so i guess it was overriding it

[high fractal]

Ah gotcha. Well good job.

[unborn compass]

❤️

I guess i'll just ask this as well in case anyone wants to help. Can't figure out why this might be running twice the "on begin play" should only have one copy of each ability

parent function doesn't add anything to this array

[runic parrot]

BeginPlay runs both on Server and Client, maybe that is related

also, from your previous message it seems this is Multiplayer, you will get better help on the multiplayer section

[unborn compass]

my bad

fixed it though "hasauthority" thank you

[zealous moth]

can i set this in BP for a niagara particle system? I want to do it in the construction script however I am not sure how to access it

[thorny knoll]

Sorry, I got side-tracked. To put it simply, I don't know how to make my checkpoint blueprint work in tandem with the new volume

like what to code, add, etc.

[wind void]

1. You gotta store your checkpoint thats currently in the world SOMEWHERE. Use gamemode or playerpawn. That way in whatever blueprint you are in you can use the get Gamemode or playerpawn, and then you can get your checkpoint from there.
2. On actor overlap, get the checkpoint, get the checkpoint's location. Teleport player to that location.

How familiar are you with blueprints? Because maybe you should take a few tutorials on general blueprinting rather than specific blueprinting. That way you learn the general idea and how they work.

[thorny knoll]

Not very familiar with them

[minor wolf]

so im currently having an issue with my gamemode where i spawn as a spectator but i cant move or look around. im using the spectator pawn that comes with unreal and i cant confirm its being spawned

[tawdry surge]

does the BP_SkySphere not update at runtime without a directional light?

[bleak swift]

My Game keeps throwing

Error        LogFileManager       Error deleting file 'C:/Users/leven/OneDrive/Documents/Unreal Projects/CyberCards/Content/Cwybercawds_assets/MENUS/Widgets/ServerMenu.uasset'.
Error        LogSavePackage       Error saving 'C:/Users/leven/OneDrive/Documents/Unreal Projects/CyberCards/Content/Cwybercawds_assets/MENUS/Widgets/ServerMenu.uasset'

When trying to save anything. I can't give a reason because it doesn't list one

[desert juniper]

do you happen to have two instances of the editor open?

[versed widget]

Hey everyone, I'm currently working on a fire propagation/spreading system for a game of mine. I took inspiration from a certain video I found on YouTube. I followed along with the video making sure I got the coding correct, which I ended up doing. When I proceeded to play my game the fire itself being lit wasn't working upon clicking. Many other people in the comments of that video had the same problem I did even though all of the coding was correct. Many people commented asking how to fix it and the creator of the video gave a very vague answer in the comments. All I'm missing is some level blueprint coding to get it working. I would really appreciate some help with level blueprint coding. I have plenty of extra info to ask and tell if you're up for the challenge. Here is the coding I have on a bush that spreads the fire. Thanks everyone

[bleak swift]

My God I'm a absolute idiot. Thanks

[dawn gazelle]

Looks like you just need to call SpreadFire on the first bush that you want to ignite.

[versed widget]

@dawn gazelle This is the current code I have on my level blueprint. I have my fire spread saying its targeting the bush. Not sure what else to add

[trim matrix]

You cannot leave the input Object on CastToBush empty

a CastTo node will not work in any way if the Object input is left blank

You need to plug an ObjectReference into the Object input

For example, you could do, GetActorOfClass[BushClass] and plug that into the CastTo node

[dawn gazelle]

Since you're using the level blueprint, you could even drag the object from the outliner into the level blueprint to get a direct reference to the object and not need to cast at all.

[trim matrix]

yes, you can even just do that

[versed widget]

@trim matrix @dawn gazelle I knew I needed to plug something into the object input. Stupid me, that was too simple. Thanks a lot for the help, I really appreciate it!

[foggy escarp]

So I'm working on a Runtime Transform Gizmo and when translating using the plane method my LinePlaneIntersection is failing. It doesn't do it every time and if I translate very slow or towards the camera it does it, although still in spurts from the failed calculations.

[unborn compass]

if anyone has a good way to halt projectile movement and have it reactivate later lmk

[desert juniper]

happens.. and happens often 🤣

[desert juniper]

maybe try setting custom time dilation

0 doesn't seem to work in multiplayer after light testing, but maybe something low like 0.0001

[unborn compass]

i have no idea how to use it so i'll have to look up a video

[desert juniper]

just call the node whenever you want

[unborn compass]

so i have a fireball class, would i call it in the fireballs bp?

[desert juniper]

how do you want the game to know when the projectile should stop moving?

for instance when player presses a key?

[unborn compass]

projectiles move a certain distance before they stop (each projectile is different) and then move again when player ends their turn

i think its working though, i have the main one on a delay from "begin play" to a multicast custom event

[desert juniper]

and you're already keeping track of how far it's traveled?

[unborn compass]

i was just doing time based right now to see if this worked lol

so a delay of one second

[desert juniper]

okay, so sounds like it works 🙂
you can also of course keep track of how far it's traveled, and check against the current traveled distance

then if the traveled distance is greater than the allowed distance, change its time dilation.
there's probably better ways, but it's a cheap trick that'll work

[unborn compass]

yes thank you so much

[desert juniper]

np!

[desert juniper]

Just in case you want to change how it works in the future, I'll leave this so you can search for it
Another more 'correct' way is likely storing storing it's current velocity, position, and forward vector
Then setting it's velocity to 0
When you want to then resume movement, you can just set it's velocity, position, and forward vector again with your stored data

[unborn compass]

i kinda like the effect this gives i'm just wondering if it'll have implications later

cause the way the particle effect freezes is kinda dope

but thank you!

[desert juniper]

no worries, i don't know if it'll have unwanted side effects in the future. I'd assume not.
but in case they do, then you can at least refer to the above 🙂

[unborn compass]

roger that, i can't believe i didn't think of setting velocity to 0. that was pretty dumb of me lol

but now i got this cool idea so not a terrible brain fart on my part

[desert juniper]

great, one of those 'it's a feature, not a bug' moments

[gritty plover]

Hey, quick question. I'm try to follow along an old blueprint, and I was wondering... If Other Actor and Other Component aren't being called or used at all, do we even need to check if they're valid? Would it even give an error if they weren't valid, if we never call them?

[desert juniper]

depends on whether your logic is dependent on there being an other actor/other component.
if it doesn't matter, and you don't use them, then you likely don't need to check that they're valid, and treat them as optional params

[bold wasp]

Hi guys, still really new to blueprints ... if I want to call an event from Level Blueprint that affects a number of objects/blueprints in the game, how should I do that?

[solar sequoia]

it depends a bit. Are the actors you're referencing explicitly placed in the level already? Otherwise, do you want to be able to get all actors under a specific condition?

[solar sequoia]

if it's the first one, you can get a reference in your Level Blueprint to a specific instance of an actor

[bold wasp]

@solar sequoia yeah, they're placed in the levels ... ok that would be ideal. I know there's this whole thing about Blueprint interfaces and such but that approach seems more to-the-point since this is hard-coded cinematic stuff

[solar sequoia]

a blueprint interface may not be what you think it is in this context

but yeah, all you do is click on an actor in the level view, and then you can right click in the Level BP to create a reference to that object

[bold wasp]

Oh snap

thanks!!

[solar sequoia]

np