blueprint

[orchid garden]

get the bounds of the actor mesh?

[tardy kayak]

i need it to be the bounds of the actor as the actors mesh is made of lots of small meshes

and those meshes can change

[orchid garden]

ah mutipart character

hide the widget? get the bounds, unhide the widget?

[tardy kayak]

ok ill give it ago is there really no cleaner way?

[orchid garden]

idk, im just guessing sry

[tardy kayak]

thanks anyway

[dull tree]

how can i change hud when player died and changed to spectator pawn
and when he respawned
after 10 seconds
Thats my hud blueprint

first time i call it it works but second it doesnt change

[clear robin]

Is the variable "IsSpectator" actually changed?

add a Print String node and see is the variable is true or false

[dull tree]

yeah

its changing

[atomic prairie]

Is it possible to do a ''circle loading'' easily? I would like to add a circle power on my HUD and when it is used: have a circular loading that reload the power

[thorny cape]

Hmmm. The console says that it can't parse the value. Thats related to casting?

[vestal prairie]

do constructor and begin play on an actor execute on a client that joins later during a multiplayer session? or just the constructor?

[orchid garden]

sry i was referring to the spawner one

didn't noitce the timestamp one.

[clear robin]

Is the lower path executed the second time?

[dull tree]

what do u mean?

i am beginner so 😦

[orchid garden]

@thorny cape perhaps where your calling it from, i did this on a beginplay, and recieved -13:

[clear robin]

The part where the UI is changed from Spectator to Player

[orchid garden]

both text and editable texts let you do settext

typing it as one word should only show settext (editable text)

[bold fiber]

I need help with player navigation. I'm trying to move my player to the navmesh edge when clicking off the walkable area. In a lot of top down arpgs if you click off the nav area your character will move to the edge closest to the click. Is there way to do this?

[dull tree]

ok, its not

idk why

this should trigger change

[clear robin]

You are calling it on the server

[orchid garden]

that vid is wrong, lol your trying to set the text of a 'rich text' to a exitable text 😉

[clear robin]

But you have to call it on the client, because Widgets only exist on clients

[dull tree]

but i have this on run on client

or doing it wrong?

[clear robin]

In which BP is this?

[dull tree]

this last ss is in player

[clear robin]

Or let me ask this way: Is "Hello" printed out and is the cast to BP_Hud successful?

[dull tree]

yeah

but its on server

but why

when i have replicates: run on owning client

i think i am dump 😛

but still dont know why

[clear robin]

does it work when sou set the C_ChangeUIToPlayer to Not Replicated?

[dull tree]

still only Server: Hello

[clear robin]

hm idk. set it back to run on owning client and refresh the nodes

[dull tree]

still

😦

[clear robin]

Since I am also a beginner i am out of ideas at this point. I had several situations where something was not updating properly and when i showed it so someone it suddenly worked.

Maybe closing and opening the project again?

[dull tree]

i will try

if i find i can tell what works

[atomic prairie]

I'm trying to make this, someone know the name for this "circular loading"?

[faint pasture]

@dull tree if you find yourself reaching for run on owning client or any other weird replication settings, you're probably doing something in a wrong or bad way.

[latent finch]

Not sure if this is the right palace to ask. But is there a way to add collisions to shadows in unreal?

[faint pasture]

angular mask maybe?

[faint pasture]

Probably not without some SERIOUS work.

[dull tree]

so how can i do it in "good" way

[faint pasture]

What exactly are you trying to do?

[dull tree]

If i turn multicast it works but trigger also other players

[dull tree]

when player is back from spectator pawn

it turn from spectator UI to Player UI

So i spawn and posses player pawn and then switch UIs

[faint pasture]

Put an enum on the Playerstate (Spectating, Playing)

or there might already be a boolean on it

set it to repnotify

then whenever it changes, swap the UI out

You can also put the state variable on the PlayerController if you don't need to see the state of the other players. Same thing tho, use repnotify

[dull tree]

i will try that with playerstate

got this

[stray island]

Can i set the origin/pivot location of a component in bp?

Say a static mesh

Component

[faint pasture]

You should switch on Player State

so it does something different depending on what the new state is

[dull tree]

how?

[atomic prairie]

@faint pasture thx

[faint pasture]

Something like this

[dull tree]

and on player bp i should only change this enum?

[faint pasture]

Since you're using the HUD, you might want to have a function on HUD that takes a state enum and does the widget switching etc.

[dull tree]

got it

[faint pasture]

Wherever you have it replicated. PlayerState or PLayerController. So the flow goes like this.

1. Change variable on server.
2. Repnotify fires, get HUD and call function StateChange on it, which takes in a new state.
3. Hud switches on the state enum and shuffles around its widgets.

[dull tree]

ok Got it

Thank u 😄

[faint pasture]

It's a good design pattern for many stateful things. They are just responsive to 1 source of state.

[dull tree]

one more, animation i should player bp?

[faint pasture]

what

[dull tree]

like dying animations

it stays on player blueprint

[trim matrix]

Hi, I am using this blueprint and when i run diagnol, the head bob gets faster, can someone tell me why that is?

I fixed it

[faint pasture]

Any reason you aren't just scaling vertical head bob by speed?

[trim matrix]

It had to do with me having both forward and sideways axis's so it was overlapping

Look man I just found this off Google @faint pasture

I am a returning UE4 user from Unity and I didn't know how to do what you described

[faint pasture]

that looks like a bunch of nodes when you could just have

[teal nexus]

I need to randomly pick a location either around original location (within certain boundaries, so that new location is no more than so many units away) of the actor or inside a volume. What's the easiest way to do so?

[trim matrix]

I don't speak C++ @faint pasture

[teal nexus]

I guess I'll try Random Point in Bounding Box

[latent finch]

I have a blueprint I made for a moving platform, but I'd like ot modify it to destroy the platform after it reaches it's end location and make a new one back at the start. Is there a good way for me tomodify my current one for that?

Or would I be better of making a new one with maybe a spawn loop?

[tight schooner]

There are a lot of ways to approach it. You could have a manager BP that spawns these. (You could also do object pooling so it reuses moving platforms that have finished their animations, but that's more of an optimization technique.)

[latent finch]

Thats what I was kinda thinking of doing.

[tight schooner]

Or you could just have the platform hide itself and move itself back to the start at the end of the animation and replay the animation.

[latent finch]

Basically have like 3 platforms that follow a trail and then restart after. So it kind of looks like a conveyor belt

If I were to make there visibility go away to return to start how would that effect the character landing on an invisible one?

[tight schooner]

You can disable collision too while it's resetting

There's some node with a name like Set Collision Enabled

[latent finch]

Will that node work on a sprite? The current level is in 2d

[tight schooner]

I never made a 2D project so idk. It'll work with colliders

and Set Visibility will work with anything render-able

[latent finch]

Ok, also an option that I thought about doing but don't know if it would work. Could I make the timeline node just have 4 vectors? then I could put 2 vectors below view and they would just run in a loop around. But to player view they would look like new boxes

[tight schooner]

I don't know what you mean by "below view"

Are you talking about having multiple sprites animated by one timeline? That's doable

[latent finch]

I mean, could I keep a box and it follows the normal path. But add 2 more vectors that match the first 2 on the x and y axis, but they fall under the map on the z axis so you cant see them while playing. but they are basically just making a loop and not being destroyed

[tight schooner]

That's kind of hackish but yeah it's possible

Actually, you don't need to mess with visibility/collision management

On timeline complete, you can just move the platform back to the Start Location

but with teleport enabled on the Set Location node

And that'll essentially zap the platform back there

And you can just play the timeline from the beginning again

@latent finch

[latent finch]

So I just make the teleport true and then do I need to morph my timeline?

[tight schooner]

Morph? Just teleport it to the start location upon Finished and then use the "Play from Start" exec pin on the timeline node

[latent finch]

Ok, I got it

I basically take away my moving back to start node in the timeline and make teleport true

it will run it's course and then teleport to start

That's working exactly as I hoped. Thank you for the help!

[smoky belfry]

Hi everyone. I have newb question

What does the envelope icon mean?

[dense tulip]

Means it a message .. so every BP listening to that message will handle it

example: You are 10 persons who bought some show tickets for in 1 week, when the week is done all these people can go see the show

[tight schooner]

It also means there a Blueprint Interface involved, so you can look into BPIs

[smoky belfry]

So its like if an "actor type" is equal to "actor example" what it will do is call everything that has that node and make every "actor type" equal to "actor example"?

Do i get that right?

[low forge]

hi can someone tell me how the PhysX will be replaced by Chaos Vehicles?
for example I have a PhysX car, when PhysX is removed will my car be automatically migrated to Chaos Vehicles or will I have to do it manually?

[tight schooner]

#legacy-physics ?

[static charm]

chaos still has awhile to go before physx is depreciated. i wouldn't worry about it.

[tight schooner]

@smoky belfry you should read or watch a primer on blueprint interfaces... The envelope icon is related to that

[dawn gazelle]

When dealing with BPIs, you implement them on the class (Blueprint) of the object. In your example above, your BPI is called "BP Ping Interface". On the blueprint that implements the BPI, you can then add the events and functions that exist in the BPI in your blueprint. In your example above, the function is "MSG get Actor Type". When you add your example node above somewhere, you need to feed it a target - that target is the object that you want to execute the BPI function on and it'll run its implementation of the BPI function. What is nice about this is, if the object you're feeding in doesn't implement the interface, then nothing happens. You also do not have to cast to a specific class of object, you just need a reference to the object.

Here's an example of a BPI function being implemented on a blueprint:

In this example, whenever any other object overlaps with my box collider, it'll call the MyBlueprintInterfaceFunction. If it happens to be of the same class of object, then they'll get a print string saying "I am overlapped."

In a different blueprint, I may implement the BPI call differently:

[smoky belfry]

I see. Thanks for the nice explanation. ^^

[dawn gazelle]

So now if the class above touches my box, it'll destroy itself. But others of the same class will still get the print string.

[open crypt]

I have a cable component whose attachment point is being set to world origin for a single tick at begin play...then it snaps back to it's PRESET attachment point - how do I normalize it's end location before runtime???

[static charm]

Did you try doing anything in construction script, or maybe spawning it at correct location to begin with

[undone quiver]

I'm expecting this to migrate all elements from one array to another. Should it do that? I have an odd problem that seems to be that only the first element is being moved.

BaseRunners is completely empty when this is called in testing, so it isn't a "uniques" problem.

[dawn gazelle]

Maybe instead of removing each element, you could just clear the Followers array once completed.

Manipulating an array while looping through it isn't necessarily the greatest

[undone quiver]

That would probably perform better, but they need to not exist in both arrays any longer than they have to. I've actually concidered a buffer area to move them to for that reason.

that's a good point. that is my problem. and I need a buffer area. Thank you

I'm removing items from an area and trying to continue looping though it. not going to work

array* not area

Yup. Stupid hurts. Thanks again. Now I have some push/pull going on where they are being directed by code acting on both arrays, but I can fix that.

[stray island]

Graphics didn’t answer me about this so it’s maybe a bp thing , can i flip a whole material with all its texture horizontally for example ?

I can flip a Single texture using texturecoord * -1

In material

I have 2 material functions inside my material and if i connect a fliping node to the maps inside , it wouldn’t fully work

[tight schooner]

@stray island yeah use a scalar (float) material parameter, and in BP, create a dynamic material instance and set that parameter to whatever it needs to be to flip the texture coordinate.

https://youtu.be/IVKVXjaT6QM

[maiden wadi]

@thorny cape Not sure if you're still encountering that issue, but by the looks of it, it seems to think your Counting variable is still a Date variable. If compiling a couple of times doesn't fix it, you may need to check it's default value and try changing that a couple of times or remove it entirely and put it in directly as a float. It's also worth noting that GetRealTimeSeconds will restart counting when the app closes, so your counting would only work as long as they leave the app open. If you do need full dates for something like this to persist across app opening/closing, you're pretty much stuck writing your own functions for it. In the boat myself with my day/night/season system. Timespan and Dates aren't very worked on values in the libraries, so you have to make your own helper functions.

[agile loom]

Hey, who here is good at vector maths? 😛 Because I know I'm not.

I'm trying to determine the yaw angle from my character to the location of a sound. If the sound was directly in front of the player, it would produce an angle of 0 degrees. If the sound were directly behind him, it would be 180 degrees. If the sound were to his right, it would be 90. If the sound were to his left, it would be -90.

Here's what I've got based on some vector math I've looked up online, but this constantly produces an angle of 0.

[stray island]

Is a looping timeline equals event tick

In performance

O yes it is apparently

[paper galleon]

I don't think you need to normalize GetForwardVector () again, it's already normalized. But I don't think that's the problem. Still looking through.

[paper galleon]

You're multiplying the two vectors. The z component of GetForwardVector is 0. Any multiplication with that value is 0

[dawn gazelle]

Z is zero from Get Actor Location and Location of Noise. When you multiply Z here and forward, it's all 0.

[paper galleon]

Yep

[agile loom]

Yes.... yes it is...

I knew you geniuses would know what's up... I'm so out of my league

Any ideas on how I can subsequently calculate the angle? I've been looking at this for so long I can't make heads or tails

[paper galleon]

The formula for the angle seems to be correct.
But I think you want the value to be between -180 to +180, right?

[agile loom]

Yes!

[paper galleon]

Okay. It's been awhile since I've used dot product. But can you tell me the max angle you can get and if it prints out any sign alongside.

I always forget if ue4 automatically clamps the angle to between -180 and 180

Or 0 - 360

[agile loom]

So just reading the dot product, it's producing values between -1 and 1

[paper galleon]

Multiply the dot product by 180 then. You should have guessed that anyways

Although. There is a node that called CalculateDirection and I think this node already does the -180 to 180 stuffs for you. But it has a little caveat. The value tends to fluctuate between -180 and 180 for that direction depending on the frame.

[agile loom]

By multiplaying the dot product by 180, it's giving me values between 180 and -180 as expected

[paper galleon]

Good. Test if those values are what you should get and not just arbitrary value. Like the source being directly left of the player should give -90 or 90.(not sure if clockwise is negative or positive in ue4)

[dawn gazelle]

So testing here... I connected the values for Z in as well, and I also did this...

This is getting really close.

basically X and Y will go between -1 and 1 depending on which side of the cube you're on and if you're facing it.

[agile loom]

It looks like forward is 180, behind is -180

[agile loom]

Are you able to zoom in on the right side also?

[stray island]

Is there a way to choose how fast a timeline play? As New time have no effect

[paper galleon]

Nah. That's wrong. A little more math there then. But try the CalculateDirection node first.
I'm not with my computer presently, else I'd have tried it for you.

[agile loom]

Alrighty where does the calculate direction node go?

The only CalculateDirection node I can find is where the target is an anim bp

Ah, so it is the anim instance node

[paper galleon]

Oh. It's math then, sorry.

[agile loom]

This one?

[paper galleon]

I've never used this. Lemme pull up my laptop real quick. All these abstract stuff is starting to confuse me

[agile loom]

Ah man, thank you so much!

I really appreciate this

[stray island]

Set play rate controls the speed of a timeline component

but what if i want to control how many seconds the timeline shd play for

Its some math to connect to play rate

[dawn gazelle]

Timelines play at game speed only, and can ignore time dilation effects.

[stray island]

So i cant resize its curve over more or less seconds ?

[dawn gazelle]

Correct. The length is defined within the timeline.

[stray island]

It seems like i can connect smth to set play rate to control it tho

[agile loom]

Hard to read some of the nodes dude, take a screenshot...

Mac is mac + shift + F4, windows has 'snipping' tool

[dawn gazelle]

A timeline component is not a timeline.

[stray island]

Oh i am talking about a timeline

Sorry

Its just set under “components” so i called it a component

So my question about controling timeline seconds and resizing its curve

[surreal peak]

Sure, you can adjust the play rate to scale the timeline

I usually do that when I want to use a Timeline but don't know the final length.
So I set it to 1 second as length and then scale it.

Math for that is usually PlayRate = 1 / LengthInSeconds. So if you want to stretch the Timeline to play for 2 instead of 1 second, you do PlayRate = 1 / 2 = 0.5, so it plays half as fast, which means 1 second becomes 2.

@stray island

It scales the timeline though. So if you have a high point at 0.5, it will move to 1 etc.

[stray island]

great I’m testing it

O, it worked thanks alot

[vital ingot]

Hello! Right now I'm doing animations in blueprint (Locomotion in statemachine), and I was just wondering if there's a way to get how long an animation has been playing for. This is my current setup, but I'd like my delays to be based on the last animation part finishing instead of manually inputting them. As an example; the first animation when my event input is pressed gets skipped unless I put a delay inbetween that animation & the next animation. I'd like that delay to be whatever duration my first animation was.

[maiden wadi]

@agile loom Did you figure out the sound thing?

[paper galleon]

Yeah. I sent him a solution

Y'all should take a look at this for me please. It works as expected but I can't shake the feeling it could be done better

This prints out a value 0 - +180 when turning clockwise and 0 - -180 when turning anti-clockwise.

[maiden wadi]

Works as well. Another solution just for fun, already commented it.

[paper galleon]

Yeah. Uses a bit more specialized nodes. I was trying to be simple, but this looks professional

[paper galleon]

This should do the trick also

[surreal peak]

The "Get Unit Direction" could just be a "Normalize" :P

[paper sky]

I need help about an algorithm, I want to generate multiple random numbers but they must add up to 100 in total. Is there a specific node for that or how can I implement that

[paper galleon]

How many random numbers

[untold fossil]

Question. Has anyone found a way to reduce / eliminate mouse input lag? I've read some things on tick priorities. Like controller being ticker first and character comes quite late in that list. Are there any interesting reads, docs anyone can share to dig into this? We're having a slight bit input lag no matter the FPS but our game is very fast paced and it can be quite annoying.

[paper galleon]

@paper sky If you don't care about the number of random numbers, generate the random number, add them up and do a check before each addition if they would cause the sum to be greater than 100. If true, discard that number and generate another.

[paper sky]

2 - 3

[paper galleon]

I'm assuming here that you need the sum and not the individual number

[paper galleon]

The range doesn't matter? E.g the first can be 1 and the next 27

[paper sky]

as long as they add up to 100 it will be fine

it can be 11 and 89

40 and 60

doesnt matter

[paper galleon]

Okay. There are two options I can think of. If you have a fixed number of random numbers, add them up each time and check if they would add up to 100 or greater. If so, discard the number and choose another. However, the last number will not be so random and it'll be 100 minus the sum of previous numbers

The other is if you don't have a fixed amount of random numbers. Keep adding them up until they equal 100. Discard any that gives a sum greater than 100.

I don't know if he needs the individual numbers or the sum which is 100

[paper sky]

I first thought about getting 1 random number, and extract it from the range of the next random number

[paper galleon]

That makes your work a bit more complicated since you said you don't care about range

So the big question is fixed number of random numbers or unfixed?

[paper sky]

its not about the range though

do you mean like "preset" by fixed ?

I am thinking pure rng numbers from 1 to 100

[paper galleon]

Like do you need 3 random numbers that add up to 100 or you need any amount of random numbers so far they add up to 100

[paper sky]

ok wait scrap it

I need 2 numbers, that add up to 100

[dawn gazelle]

just random once and then subtract the first value from 100 to get the second value.

[paper galleon]

In that case only the first number is truly random
This works the same for any amount of random numbers i.e the last number is not random

[paper sky]

yes but how can I do that ? Sorry i am just not familiar with the nodes

[paper sky]

yes true

[paper galleon]

Are the numbers in an array?

[paper sky]

nope but i can make it

[maiden wadi]

@surreal peak That's fair, I hadn't considered normalize! I was initially preparing to include base eye height and whatnot into that though, but decided to leave it simple.

[paper sky]

cool thanks

[paper galleon]

This works. But you need a check that the first number is not 100. You can make the upper bound 99 or something

[paper sky]

but what can I do if i need 3 numbers

[maiden wadi]

Guess it wouldn't change anything with eye height.

[dawn gazelle]

0 is still a valid number, no?

[paper sky]

yep

[paper galleon]

😅😅. Zero is weird

[dawn gazelle]

Array style

[paper galleon]

You'll have to use an array there unless you want a variable for all the numbers.

[paper sky]

hmm

[paper sky]

I need to assign these numbers and then check them if they match with another instance

[runic phoenix]

Thanks for the advice! The error was because the box had negative bounds. All I had to do was use Absolute Value of the each value in the bounds vector and it works like a charm!

[paper galleon]

@dawn gazelle, can you please put the check for if the numbers add up to 100 before adding another number.

[paper sky]

its basically a mixture thing, the required formula needs me to do 40% A, 40% B, and 20% C for example, and then when I put the mixture in place it will check if they match with the formula

[paper galleon]

Oh?

[paper sky]

I completed "preparing the mixture" part where you empty bottles inside a mug or something

it can record different drinks and stuff, but now I need to check if the crafted amounts match with the requirements

then it will return either a success or fail

[paper galleon]

So the number of ingredients vary right? Not just two

Depending on the recipe

[paper sky]

yes, at first it will just require 2 ingredients but more difficult recipes can go up to 5 I think

array might just work

[paper galleon]

Yes you'll have to use an array. With another variable specifying the array length. You might not want to add default entries to the array to match number of ingredients. Because this defaults all to 0 and you'll have to use set array elem. You'll want to use the regular and flexible Add node. And keep checking each time if the array length is equal to the variable specifying array length.

Again, I'd have done this for you but I'm not with my PC

[paper sky]

It's OK, I am grateful for your attention nonetheless

[paper galleon]

No problem.

[paper sky]

"And keep checking each time if the array length is equal to the variable specifying array length." why are we checking each time btw

[paper galleon]

So that you'll know when you're about to add the last value. And simply subtract the sum of the others from 100 and use the result as the last value

[paper sky]

ah I see

ill give all the suggestions a try now

thanks @paper galleon @dawn gazelle

[paper galleon]

Yeah. Hope it works out for you.

[dawn gazelle]

Quickly change the recipe size:

Something like this?

@paper sky

[paper sky]

i think so yes

this looks good

all of the numbers are random right

[dawn gazelle]

Yes, except the last which is just 100 minus the sum of all the other numbers generated

[paper sky]

its not a problem

how did you achieve this ?

[dawn gazelle]

https://blueprintue.com/blueprint/fi282sdw/

Example for output:

Just in case you don't know, you can copy and paste from blueprintue by highlighting what you want and doing CTRL+C and then CTRL+V in UE4.

[paper sky]

thanks alot 🙂

[clear robin]

I have a problem with floor check, when my character is crouched and i am (duck-)jumping onto an edge. It seems to not use the flat base in this case. Walking off an edge crouched looks like it's using the flat base again. Does anyone know whats going on here?

[unique hollow]

https://blueprintue.com/blueprint/h1etaq5b/

I have this system for reloading

and it works perfectly until the reserve ammo dips below 18

if the reserve ammo is below 18 and I try to reload, it does funky stuff

18 is the max ammo in a clip for the weapon

[stiff chasm]

Is there no way to do a non latent delay? 😩

this isnt cash money anymore

is there a possible way to do a Non latent Wait until

it needs to be non latent so it can stay inside a function

So i can overide it in my child classes if needed

pls ping on an answer

[maiden wadi]

You cannot do any form of pausing or waiting inside of a function. They're designed to execute instantly. The only way to get away with something remotely similar is to split your function up into two functions and make one function start a timer that'll call the other function when the timer is finished.

Thus one function executes instantly and sets a timer in the time manager, time manager continually checks til the timer is up, when it's up, it runs another function that executes immediately.

[violet wagon]

^ or use a macro

[dawn gazelle]

#blueprint message

[shut harness]

I have a blueprint that derives from UObject. It is in the content browser. Is there a way to get or set a level actor inside this object blueprint? I see nothing for GetLevelActors or anything

[maiden wadi]

UObject doesn't have the same access to library functions as an actor does, so things like GetAllActorsOfClass and whatnot aren't able to be used. What is the blueprint for? How do you use it? Where is it stored? It's possible that something else may be able to populate that uobject for you.

[shut harness]

I think I know my issue. I'm trying to get back the contents of the CameraShake update. The actor only takes a reference to the camera shake class, and the instantiated object is created in C++ and never exposed. I think I have to go into C++ mode to achieve what I want here.

here it only returns the class, as opposed to any instantiated object :(

[maiden wadi]

That's because what you're dragging off of is a pointer to the instantiated object type. You have to set that from a valid object of the type.

[shut harness]

Yea, this is an Unreal C++ class, so I think they don't want us to have access to that object

[maiden wadi]

@shut harness You're not working in a UObject either, what class type are you in that has that component reference? UObjects don't have construction scripts.

[shut harness]

So this is inside the CameraShakeSourceActor. it has a CameraShakeSourceComponent, which you add the class of type CameraShake. It uses this Camera Shake in C++ and does some funky thing to all the cameras this actor is near to.

I am trying to get a reference to the Camera Shake object, but in their blueprint it only stores the class. The actual object I think they instantiate in their C++ class and never expose it.

[maiden wadi]

The component is what likely does the camera shaking. Which you already have your reference to.

[shut harness]

the CameraShake being a uobject, i can open the blueprint and see an override for UpdateCameraShake which returns the data I want, but I can't assign that to any other actor...because it is a UObject blueprint

🤔

[maiden wadi]

Hold on, let me grab that plugin really quick and look.

[shut harness]

so inside the CameraShake UObject, there is an override for this function. I want to grab this data, and pass it to an actor. But beacuse this is a UObject, I can't find any way to do that.

[maiden wadi]

Ah. Okay. This is another thing like ApplyDamage. They're using a literal CameraShake UObject to pass parameters through the CameraShakeComponent.

[shut harness]

yes exactly

the CameraShakeSourceComponent doesnt actually hold the logic, because we have this global function that can do it. the source actor component just gives it a position to affect i believe.

[trim matrix]

how do i acces a single actor if i spawned more then one from the same one?

I already got the variable in my AI

wich is ''closestActor''

[maiden wadi]

@shut harness Kind of glanced through the .h files for that. What actor do you need a reference to in the BlueprintUpdateCameraShake Fucntion?

[shut harness]

i need to extract the shake data from that and apply to one of my Level actors

my main goal here is to make camera shake work with SceneCapture2D

camera shake applies it directly to the Camera frustrum settings, i want to extract the position and rotation to apply to a SceneCapture2D actor

mm, seems in the C++ they create a pool of shakes from that class template, so maybe what i'm trying to achieve won't work

[maiden wadi]

It might be in C++. The CameraManager has the data for it, but the data is not blueprint exposed.

[orchid garden]

get all actors of class - cycle through them and get distance to for each comparing it to the last till you get the one with the closest distance to? (guessing)

[trim matrix]

I already got tht

but its in a task in my behaviourtree

[orchid garden]

and?

[trim matrix]

I got more then one ''foodsource'' with a simple bp thats just a float wich is the remaining food

i want it so only that one actor and not all get affected

i just set up a custom event to fire atm

but obviously it fires the event on all the actors

[orchid garden]

sense its a behavior tree why not just pass it to the actor that the current running tree is for?

[trim matrix]

what do you mean?

[maiden wadi]

Is this something for like having an AI go and gather food from a food source?

[trim matrix]

yup

[maiden wadi]

Your AI should likely have a "GatherTarget" actor reference in it's blackboard. It can see if it has one set, if not, it can run a quick function to get the closest one and set it's blackboard value as that, then later functions can move the ai towards that actor, when in range it can stop moving and run the gather logic. And since it's only storing that one pointer, it should only work on that one instance.

How your get that one actor out of many is a matter of preference. It depends on how you're spawning the food sources and whatnot. If you have a manager with all of them stored already, running a simple distance check on that array is easy. Otherwise you'll need to do something like SphereOverlapActors at the AI's current location to gather all of the nearby food sources to run through a distance function.

[trim matrix]

i got all that set up already yes

problem is getting it to the bp on the food source

obj variable for closestfood and bbkey aswell

[maiden wadi]

You have to get the blackboard key as object or actor and then cast it to your food source class type.

[trim matrix]

like this?

[olive sedge]

https://i.imgur.com/YQz945F.png
This is the result when I paint foliage with a 0.001 density. Am I doing something wrong?

[maiden wadi]

@trim matrix Other way around. The Key that contains the object, needs to be gotten as an object or actor, and then cast to the foodsource, then you can call PickBerry from that.

@olive sedge Also depends on the radius specified per mesh.

[olive sedge]

@maiden wadi wdym? my brush radius?

[maiden wadi]

The Radius at the bottom there will keep them from painting too close to one another.

[olive sedge]

Oh, right

These aren't my meshes but I'll look into it. Thanks @maiden wadi

[maiden wadi]

They don't need to be, it's in the foliage painter tool.

[olive sedge]

ah, sweet, now I see. Cool

[orchid garden]

from my understanding.... density is the number of objects that get painted within the radius

click drag may not seem like it, but just a quick click it seems to be that way

[olive sedge]

yes, but it's funny. 1 click at .3 density looks like this: https://i.imgur.com/gM3mWwB.jpeg

it's just that they have no radius set so UE gets confused

[orchid garden]

o.o damn thats thick lol

well no radius, thats why i'd suspect

[maiden wadi]

They seem to be independent. One setting is how many you can have in a 1000 unit radius. So 1 density means that one will get placed every 1000 units at least. Where as the radius seems to be an enforced minimum safe distance between the meshes.

[orchid garden]

ctrl+Z is your friend when landscape painting heh 😉

[proud hull]

Hah, that is great. Love it when it is something so simple. 👍

[ancient topaz]

Help me Guys! How do I make the array select the object that was picked up by the player? I'm completely confused about arrays.

[ancient topaz]

@orchid garden

Thats right? GetChickenFront is not working(

[shut harness]

@maiden wadi @trim matrix thanks for chatting that through with me. I managed to get the camera shake working in the end, I had to create some child classes of UE4 camera shake classes (in C++) so I can extract the data to blueprints :)

[orchid garden]

well you don't need the 'set' inbetween the add -> get the out index should be the index of the added item.

but your 'add' has nothing to it, so your getting a empty index.

your original - should be getting the last index of the array, and your get should be getting the last item in that array

my little sample was just to show how you get the index of a item your adding

i would select get chicken front and press F9, then run the game, and see whats happening inside that (step into/step forward), to see if something isn't firing properly. (dont forget to select and F9 it again to remove the breakpoint)

[ancient topaz]

@orchid garden

[orchid garden]

yeah see i thought that may be where the problem was happening, in this routine:

its basically saying that is looking for a array item that doesn't exist

[long schooner]

quick question, is there any good tutorials about doing UI widgets?

[orchid garden]

ui widgets for?

[long schooner]

menu navigation+ menu animation

I would want to loop the left array of items, so the player can choose one in their inventory

but no idea how the widget actually works, so I would like get some knowladge, and then ask specific questions if there are any here

[ancient topaz]

@orchid garden If i do like this, is workong, but not right. Its working just if i take a first chicken then second. if i take second chicken, and then first, i have a problem. I have a 2 chicken

[orchid garden]

decent starter menu tutorial - https://www.youtube.com/watch?v=U_DY1lmHbLc&feature=youtu.be

[orchid garden]

and for abit more advanced menu...

ug damnit wrong link...

[long schooner]

xD

[long schooner]

btw I know the very basics

I have a working Ui rn, But i want to expand the knowledge

[orchid garden]

https://youtu.be/jHGASFLaH1w

he covers more things with his 3 part tutorial covering the menu he made for his game

[long schooner]

Cool, thanks for the handy help

[orchid garden]

im assuming your wanting the interfacing parts

[long schooner]

this is my menu so far, But i still want to fix it and make it much more appealing

[long schooner]

Yeah, especially that cuz I have no idea how to make that

[orchid garden]

yeah watch that mini series on paper smiles menu, it'll help 🙂

[long schooner]

Thanks

[orchid garden]

your pause menu looks good so far btw 🙂

[long schooner]

Thanks, it was an aweful experience to make it work with the controller, everything works as I wanted and there will be an image of the item right in the middle

But it took me a week or 2 to do it right

[orchid garden]

UI design always takes time, more time then some other parts of the game i think, got to get all the elements right, make sure they work and scale properly to different screen sizes, etc.

[long schooner]

Yeah i know that this is an issue, but since this will be my degree work, I have to have everything done by may, I will focus on it later if I have time

[orchid garden]

best of luck 🙂 took me a month just to get my inventory menu working right and looking all purdy lol.

[long schooner]

If i can't make it as I want I would leave it working xD and thanks

[quiet stag]

hey guys can i call an interface function to an actor without casting that actor to a specific class to call the interface function on it?

like if i do an event hit...can i just test to see if it has the interface and if it does call that function on it?

[dawn gazelle]

yes, you can just BPI directly to the actor reference without casting.

[quiet stag]

figured it out u just cast to the interface 😛

[weary jackal]

There's a node 'does implement interface'

[worthy frost]

@quiet stag there is normally a Message type event

which should take anything

[quiet stag]

thanks i got it 😄

[orchid garden]

when i got up 5hrs ago... i had a plan for what to work on in ue4.... i've gotten 0% of that plan done... lol... >.<

[maiden wadi]

That's okay. I do most of my work when I'm "Just going to check something really quick."

[orchid garden]

i think i get distracted too easy

[keen seal]

Hi, why doesn't the SpawnAI work?

[ivory estuary]

hey, im looking to get into programming, but i have a certain thing that i want to programme, im currentally making an Attack On Titan pve game, for the grapple gear they use, if anyone can swing a few links or tips my way itd be appreciated

[rough jay]

because ur dragging an array into that little circle thing i think

[keen seal]

Yes, but the array for SpawnActor works

[rough jay]

yeah because you got the object from the array not drag the whole array

[keen seal]

The same here

[open crypt]

I have an event tick function that checks a component for a certain height then turns off freezing - it works the way I want to, I just want to extend that same functionality to another component on the same blueprint - **how do I split up tick events like that? **

[last abyss]

because spawnai requires a pawn class reference, while spawnactor requires an actor class reference and you're using a base enemy class reference

[last abyss]

you can use a sequence, or make a custom event or function thats set by a timer

[open crypt]

Basically this is checking to make sure one of the particle locations of that cable component is close enough to the ground and if it is, (and the end location is on the ground too) it turns off tick on that component and freezes it in place looks like this

now do I add the OTHER wire into this functionality

they are independently moving, so I shouldn't be checking them on the same function \

[keen seal]

ah, but my BaseEnemy is a Pawn

How do I go about this?

[last abyss]

like soop said, you're dragging an array into a single pin. You need to get a copy or reference

[keen seal]

Yeah, already figured it out, thanks

[last abyss]

😃 great

[real garnet]

How do I tell in code that the distance has increased or decreased?

And how do I tell in the code how fast the distance is increasing or decreasing

[trim matrix]

Hi I have a trace and I want to get a rotate to set a rotation of the ai character to rotate to the trace collision location.

Please reply to my message so I can understand someone answered me . Thankful

[last abyss]

You can use the Find Look At Rotation node

[trim matrix]

no i get the wrong rotation. sometimes its right.

[last abyss]

o.o

[rocky pivot]

Hey guys can someone lend me a hand? I made an object bp and then made children of it. When I use the child as a reference to cast to the parent it always fails though? Furthermore, it's class is "Blueprint"? The actor's display name is correct though...

[frozen needle]

I want to make a simple blueprint for smooth transition between two values (making spring arm length shorter in this case), but it seem to be executing all the time, making my camera fly away into oblivion. How can I tell it to change the value just one time?

[last abyss]

every frame timeline is being executed (or delta second? idk)

[frozen needle]

I think it's delta second. So I just want it to change the spring arm length once to the desired value, but it works like it's changing this value constantly and I'm not sure how to prevent it from flying away

[last abyss]

use FInterp to

or Lerp

[frozen needle]

Instead of a timeline?

[last abyss]

you can use the timeline with Lerp

just set the alpha of the lerp to the Time value

A to current value and B to what value you desire

[worthy frost]

i would use Lerp with timeline and Tick with FInterpTo, benefit for timeline lerp is being able to reverse

[summer maple]

hi, I have a character that is spawned in my level but I want it to be asleep until I trigger it to be awake, I can't find how to do that in blueprint, I tried turning it's ai perception off, didn't seem to work, any ideas?

[paper galleon]

What do you mean asleep?
Just staying at a position doing nothing? Or Having the AI off until triggered.

[summer maple]

yeah i mean off until triggered, it's a robot

[modest gulch]

Is there any way to tell game in advance "hey I am about to use some assets, load them already"?

[deft elm]

Hey guys, apologies if I'm interrupting something

I am working with a hover and unhover events on a widget

the animation is a simple 0 to 1

[paper galleon]

You can have it as a prop Actor then call possess on an AI controller to possess the robot

[deft elm]

so hovered : 0 to 1
unhovered : 1 to 0

[paper galleon]

D'you know about SoftObjectPtr and Async loading?

[stable dove]

Anyone know what the < and ++ nodes are

i cant seem to work it out

[modest gulch]

I am not sure. maybe i will describe my use case. So I have cursed window where I show something unsettling via portal. problem is that game seriously hitches when it activates since it loads assets (model, sounds etc) and because of that beginning of vision may be skipped

[paper galleon]

So you're loading the assets at the moment the player looks at the window?

[modest gulch]

I guess? I am not explicitly loading assets, game does that for me

[summer maple]

Thanks, so you'd tell the AI controller to possess the robot?

[paper galleon]

Exactly

[paper galleon]

I'm trying to understand if the vision is another map?

[modest gulch]

no, it is same map, just in part that player will never see directly or enter. That part of map is box with empty skeletal mesh. what I am doing is that when window activates, I set skeletal mesh and run animation blueprint (I am guessing that is when game loads needed assets)

[paper galleon]

You can store references to all the actors that will show up in the vision as SoftObjectPtrs then do an Async loading when the player gets to a certain distance near the window. Before he triggers the vision

[modest gulch]

hmm, I guess pre-loading when he gets close is solution, thanks

[paper galleon]

But this setup should load instantly if it's the same map. The entire map should just take longer to start initially(if there are too many assets ).
I may be wrong tho. Never done much work with maps

[ancient topaz]

Friends, help me out with some advice.
I want to shoot chicken bullets so that the enemies move to where this bullet will fall. When I shoot, enemies react, but as soon as the bullet flies out, enemies immediately lose interest in it. Can you tell me what I'm doing wrong?

[paper galleon]

Maybe the bullets fall outside their range of interest?

[ancient topaz]

@paper galleon Im found another way. Thanks

[paper galleon]

Alright

[stable dove]

trying to recreate this anyone know what the spawnballs 3x node is?

like it looks like its doing nothing

but idk it probably is im trash at this stuff

[paper galleon]

I think it's the current count of spawned balls. It gets incremented by 1 each time a ball is spawned that's what ++ does.

[stable dove]

yeah but what is the spawnballs 3x doing?

oh wait

[paper galleon]

The < node checks if the spawned balls are up to 3 and prevents anymore from spawning

[stable dove]

so if there was 2 it would be spawnballs x2?

or no?

this confuses me so much

[paper galleon]

The only thing missing I think is where the spawnballs x3 gets defaulted back to zero

[stable dove]

what node is the spawnballs?

i dont know what they are using to add that

[paper galleon]

It's the naming convention. The x3 doesn't mean anything. It's just to show how many balls can be spawned

[stable dove]

this is mine rn

[paper galleon]

Are you new to blueprints?
The spawnballs x3 node is the getter for the variable

[stable dove]

yeah very new

started learning them like 5 days ago

wanted to randomize how they spawned abit and was sent this as refrence for a way i could do it

but im trying to wrap my head around it

[paper galleon]

Oh? I'd sound like snob right now but you need a few more lessons

The reason the spawnballs x3 node is there is to keep track of how many balls have been spawned.

[stable dove]

And if its more than 3 it wont call spawn balls function right?

[paper galleon]

Exactly.

[stable dove]

so branch is an if statement and the condition is whats inside it?

[paper galleon]

Yes.

[stable dove]

wait so the ++ is adding 1 to the count of balls each time i spawn it correct?

[paper galleon]

Yes. See you're learning fast.

[stable dove]

how do i go about adding the spawnballs count node to my blueprint?

i have no clue what that node is called

i think i understand what its doing but dont know what it is

[paper galleon]

Just create a variable called spawnballs count or something similar.
The value defaults to zero.

[stable dove]

ok

[paper galleon]

Then drag that variable to the event graph and click on get. The node appears

Alternatively, right click and search for spawnballs count then select the Get Spawnballs count option

Alternatively, hold down left Ctrl and drag the variable to the event graph, let go of the mouse button and the node automatically appears

[atomic prairie]

heeey i'm trying to detect with a OnComponentBeginOverlap if the player is in the box or not, but this from BP actor, I tried different methods but it doesn't work, any ideas?

[paper galleon]

That equal to comparism is very dubious. It's not really advisable to use the get player character node .

If the third person character is the only one in the level, you don't need the branch

[atomic prairie]

Oh okay but with a BPactor there is no ActorBeginOverlap, but only the OnComponentBeginOverlap and they detect all my component :/

[frozen needle]

I tried to do that but it doesn't seem to be working. The string is printing, but the value isn't changing

[paper galleon]

If it's for a multiplayer game and you want the character you're controlling, you can use the IsLocallyControlled node

[atomic prairie]

I've only 1 character

[paper galleon]

Is it the overlap that isn't working?

[last abyss]

o.o, that should work. is the value in the timeline 0 to 1?

[paper galleon]

Run a print string and see if the node gets called when you overlap.

[frozen needle]

Yes, the Transition value in timeline is 2 seconds long with float changing from 0 to 1

[worthy frost]

@frozen needle also that lerp would break

[atomic prairie]

Iv an BeginOverlap and an EndOverlap, but theyre triggered because they detect the other bpactor of the level

[worthy frost]

ah wait nvm you are setting SpringArmLength

i don't see where you are adjusting the TargetArmLength*

[atomic prairie]

So I want to limit the OnComponentBeginOverlap to the player and not to anything that can trigger it

[paper galleon]

What exactly do you want the overlap for?

[paper galleon]

That node gets called everytime a new actor overlaps. So you can run your code safely

[worthy frost]

yes but when is it adjusting your spring arm?

[paper galleon]

@worthy frost, I'm correct right?

[atomic prairie]

When the playercharacter is in the BOX, it teleports the BPactor to a spawn, when the playercharacter exits the BOX, it activates the BPactor animation

[stable dove]

Did this but it only seems to spawn 1 what am i doing wrong?

[frozen needle]

after the timeline in "set spring arm length"

[worthy frost]

BeginOverlap is triggered only on initial overlap

@frozen needle but that will not adjust your spring arm though

you are just setting a property

[frozen needle]

How could I do it then? Sorry, I'm not very good at this

[worthy frost]

sec

[frozen needle]

I just want a smooth camera transition

[last abyss]

ah i see it

[paper galleon]

Connect the output pin of the delay node to the input pin of the branch

[stable dove]

oh

ty

i forgot i didnt connect that back up

[paper galleon]

You can set in the collision setting to ignore all other Actors except the pawn. I think?

[paper galleon]

Yeah, that creates a looping function until the condition breaks

[atomic prairie]

like this? i'm trying

[ivory estuary]

hey, im looking for a bit of help on programming, is this the right place?

[paper galleon]

Yeah.

[paper galleon]

#cpp if you are dealing with code.

[last abyss]

the problem is you're setting the spring arm length which is a variable, but never setting the target arm length of the object (spring arm) to the spring arm length

[ivory estuary]

ah nono, im using blueprint for my project

[atomic prairie]

Something works wrong :/

[paper galleon]

Here is good then👍. Welcome

[atomic prairie]

I think the ActorBP trigger the box again

[orchid garden]

whats happening Edwing?

[paper galleon]

Regular actor?

[ivory estuary]

perfect, im looking to make a grapple hook mechanic based off of attack on titan, but not sure where to start, im a complete newbie to blueprint, but im willing and dedicated to learn

[orchid garden]

https://www.youtube.com/watch?v=fL8FcQFK7pA

[frozen needle]

I'm not sure what exactly I should do in this case

[paper galleon]

Use this. Aimed at beginners
https://youtu.be/pd-sO4lqdV4

[atomic prairie]

@orchid garden I try that my componentBeginOverlap only activates if they detect the character, but I think they also detect when an ActorBP is in the box

[last abyss]

https://prnt.sc/xq4y5y

[paper galleon]

😅😅👍👍

[orchid garden]

you can grab the grapple project from the description @ivory estuary

[atomic prairie]

@paper galleon No Blueprint Actor

[ivory estuary]

great, i did look into those, but the grapple system im looking to create has two grapples rather than the one

[plush zodiac]

i just tried to compile a blueprint that spawns a weapon and sets it as the player's current weapon on BeginPlay, but it gave me this error:

CurrentWeapon of type ZWeapon Object Reference doesn't match the property CurrentWeapon of type HOTRELOADED ZWeapon 0 Object Reference

what does this mean exactly?

[atomic prairie]

Like a Door with interact

[paper galleon]

I really can't tell what is going on. Unless I try it myself. Which I can't right now.

[frozen needle]

That just worked. Thank you!

[last abyss]

great, do you understand what went wrong?

[stable dove]

Adjusted the script to behave abit more like how i had imagined it to be but i have two new questions white tiger

[orchid garden]

between the two he's got two different styles of grapple to look at 🙂

[plush zodiac]

it even changed the variable type from ZWeapon* to whatever this mess is

[paper galleon]

Yeah variety is nice

[frozen needle]

I wanted to change the value depending on the existing value in a weird way but I could've just set both values in the lerp itself

[orchid garden]

are you using a trigger box @atomic prairie ?

[ivory estuary]

yeah the grapple sytem im aiming to achieve is
https://www.youtube.com/watch?v=ti2naQ5wJgs
but most videos showcase a grapple system quite different

[paper galleon]

DO NOT EVER HOTRELOAD AGAIN

[stable dove]

the first is how can i clean up the line that connects the set ballcount node to the branch because it goes through multiple nodes and is hard to read?

[ivory estuary]

so my brain is kinda frozen aha

[last abyss]

yeah that was one thing that would break it, but most importantly you were just setting a variable of the class, not the variable of the spring arm

[atomic prairie]

My ActorBP (The Door) trigger my other ActorBP (The CollisionBox of my trap)

@orchid garden CollisionBox in a BPactor

[paper galleon]

You can easily modify to match your style. The principle is the same. The link I sent you is what I used to make my own 3d maneuver gear system

[stable dove]

The second is how can i stop them spawning ontop of each other like i want them to be random but not spawn overlapping

[ivory estuary]

mind if i dm you?

[paper galleon]

Close the editor and open again

[orchid garden]

that could be done with either grapplehook

[paper galleon]

Go ahead

Man I've said a lot of sh*t on stuff I barely understand 🤪🤪

[last abyss]

welcome to the club

[stable dove]

How can i stop this route overlapping all my other nodes?

[atomic prairie]

double clic and delete

[paper galleon]

Double click on the link and a reroute node will appear

[stable dove]

yeah but it doesnt allow me to have more than 2 for some reason

oh wait it does

[paper galleon]

You can have 1000 if you want

[last abyss]

and enjoy the real fun experience of bp, rerouting 😎

[stable dove]

just not when i add them with right click

idk why

[paper galleon]

Spaghetti and meatballs

[paper galleon]

It's weird that way

[orchid garden]

i had to see if it was a player triggering a box in one of my projects, give me a min and i'll send you a snip of what i did for the overlap

[atomic prairie]

@orchid garden Thx!

is it possible that my BPactors are considered lika a "pawns" for the colision?

[stable dove]

My final problem for tonight is how can i make it so they spawn 3 balls on a random y axis but make sure they dont overlap because that messes up the collisions and the balls fly everywhere?

[orchid garden]

thats what i did so only the player would trigger it

[paper galleon]

Do you want the balls to behave like projectiles?

[stable dove]

nah i want them to spawn and fall

the balls are just spheres with simulate physics on

[orchid garden]

i have two actor types that use the samp bp, so its kinda a double check.

[stable dove]

problem is 3 of them spawn on a random y axis and they sometimes spawn overlapping each other

[paper galleon]

The random float in range should be good.

[stable dove]

dont know how i should go about making sure they dont overlap when they spawn

[orchid garden]

also, you may need to replace the 'default scene root' with your collision...i.e.:

[paper galleon]

You can further do a check to see if a particular y value had been used and ignore that one but it adds complexity

[paper galleon]

@stable dove

[stable dove]

yeah i need to do something like that

[orchid garden]

and my collision settings for it:

[stable dove]

because the balls are fairly big and so one of them spawns inside another 9/10

[paper galleon]

You can add the diameter of the ball to the random number each time

[atomic prairie]

Yea i try this method with equal but i'm using a CompinentBeginOverlap and not a ActorBeginOverlap,

[orchid garden]

@atomic prairie note though, i made my collision box a blueprint class of 'Trigger Box' not a 'Actor'

[atomic prairie]

I'm trying this

[stable dove]

How would i go about adding a check for if a y value and the ones within 3 and -3 of it have been used?

[frozen needle]

You know there's this thing that changes between two cameras smoothly? I really like how the "Lock Outgoing" bool works because it doesn't snap if I abuse it. But do you know what I can change it with when I'm smoothing just one camera (as I did before with the lerp thing)? Because without it it snaps in an ugly way if I go in and out of trigger box that initiates the camera transition

[orchid garden]

@atomic prairie i use it to add minimap markers on my map for the players.

[paper galleon]

You'll have to create a variable and an array. With a bit of setup.

[stable dove]

oh god sounds scary

[paper galleon]

Just do this.
You can add the diameter of the ball to the random number each time

[stable dove]

how would that stop them spawning inside each other

oh

it would pick a random number in the range then add the diameter to where the ball spawned for the next spawn

[last abyss]

I have never used that node, but I assume it has to do with the blend func @frozen needle

[paper galleon]

If the y value ends up overlapping the ball, the diameter addition will ensure that the y value falls outside the ball. Especially if the random numbers are positive all the time

[stable dove]

the diamiter is 6

[paper galleon]

Works for every spawn including the first

[stable dove]

couldnt they randomly spawn 6 away then still overlap

idk im probably missing something obvious here

but i cant see how that would fully eliminate spawning inside the balls

[frozen needle]

Yeah, I want to achieve something like this but for the simple trigger box. It works like I want it to if you walk patiently, but if you rapidly go in and out of the box it snaps and I somehow want to prevent it from that

[paper galleon]

Nah. It's good. If for any reason, the randomly generated y value is within a ball, adding the diameter to that value will ensure it spawns outside the ball.

[last abyss]

it snaps because you're playing from start @frozen needle

[stable dove]

but could it not spawn the exact diamiter away from the ball and adding the diamiter cause it to spawn inside the other ball?

[last abyss]

if you use play instead it shouldn't snap

[stable dove]

it would massively reduce the chances

[ivory estuary]

say i wanted to have the grapple detach when you let go of Q, how would i go about that from this?

[stable dove]

but it would be possible to spawn inside each other right??

[frozen needle]

Yeah that seem to be doing the job, thank you again

[last abyss]

no problem 🙂

[orchid garden]

you'd do it in the blueprint not in the project settings. The key assignment you've given will fire off a custom event that returns both a 'on pressed' and a 'on released' event.

[atomic prairie]

Ok, I abandoned this idea and just make a triggerbox in the Level and that calls with my LevelBP a custom event in my BPactor, it works and it took me 3sec ..

[orchid garden]

trigger boxes work great for stuff like that

[paper galleon]

Yeah, actually. Well an exercise for you, I guess.

Pardon my language

[stable dove]

nah its good im just trying to understand it im probably being really annoying

[paper galleon]

Nah. It's good to ask if you don't understand something

[orchid garden]

look okay for a keypad?

[stable dove]

Im gonna try adding the diamiter each time and see what happens

probably easier for me to understand if i just try it

[stable dove]

wait so what do i need to add to this?

[paper galleon]

First off, is this exactly how you want the system to be? I like to split the transform so that I have more control over the location.

[stable dove]

oh you can split the transform?

i thought i had to use a vector3

[paper galleon]

Yes. Right click on the sockets and select split pin

[orchid garden]

right click the pin (when nothing is connected) and select split pin.

[stable dove]

so something like this would work better?

im gonna randomize x later but just want to do y for now

is there a way to remove the rotation and scale sockets? not going to change those.

[orchid garden]

its really up to you whichever works easier for you in both cases of your images.

[paper galleon]

No.

[stable dove]

ah well

[orchid garden]

keep in mind any transform that you don't set will have 0 values set when you apply it.

[stable dove]

even scale?

[paper galleon]

In your collision handling override, select the option that looks like Spawn but try to adjust position. I forget the exact option

[orchid garden]

scales default is 1

[paper galleon]

Scale is default to 1

[orchid garden]

so like if your balls scale is 2, you want to make sure to set the scale as well.

[stable dove]

ok good

this?

[paper galleon]

Yes. Are your balls blocking collisions ?

[orchid garden]

@paper galleon lol damn you, you distracted me from my keypad with that grapple video lol... im never gonna get this keypad done today lol...

[stable dove]

not sure exactly what you mean but there launching into different directions when they spawn inside each other

[paper galleon]

😂😂. Sorry about that.

[orchid garden]

if they are physic enabled balls thats normal behavior

[paper galleon]

Isn't that good? You want them to fall straight down?

[stable dove]

yeah they are

i want them to fall down

so i need to make sure they dont spawn inside each other otherwise they fly everywhere

[orchid garden]

spawn one, do a delay, spawn next

[stable dove]

yeah but i want to spawn them at the same time so they are harder to dodge spawn them in a pack of 3 every x amount of seconds

[orchid garden]

or setup a timer to spawn the balls and after x number of balls are spawned invalidate the timer.

[orchid garden]

so your trying to make it rain balls then

[stable dove]

doing this right now

[paper galleon]

Why is this statement weird

[stable dove]

this is the full thing

[orchid garden]

give them a random vector offset from the last ball spawned?

[stable dove]

yeah that could work

but no clue how i would get the position of last ball spawned

[orchid garden]

from the return value

[paper galleon]

You'll have to create a variable for that and set it as the randomly generated vector

[spark steppe]

anyone messed with changing groom assets on runtime? i cant figure out how to change stuff in the group description (which works as long as i dont change the asset)

[stable dove]

ok

i think i understand

so i return the value into a set variable node for a new variable i create

[orchid garden]

kinda like this ->

[stable dove]

oh

i thought you meant this

[orchid garden]

the return value on the spawner is the object that was spawned

[stable dove]

yeah

i get it

or at least i think i do

why do i need the target sphere bit?

oh

i think i know why

[orchid garden]

sphere is the static mesh of the actor

thats just my little test object, the sphere is the only mesh in it lol.

[stable dove]

same

the falling ball blueprint class is just a sphere with a material and set physics on

[deft elm]

I was facing an issue with playing a umg animation forward and in reverse where I wanted the reverse to play at the same second the forward was interrupted

and I found the solution

so this is here for documentation ❤️

[orchid garden]

you might want to do this Trolls:

replace the default with your static mesh

[deft elm]

(0.5 here being the length of the anim)

[stable dove]

just rename sphere to static mesh?

oh

[orchid garden]

that default scene root can cause problems, no just drag the static mesh ontop of it and drop it, its default action is to replace the root

[stable dove]

this

[orchid garden]

there ya go 🙂

[stable dove]

wait so what am i doing with this

[orchid garden]

thats the position where the ball was spawned, from that you can make your random distance vector on the xyz for the next spawn.

[stable dove]

So my spawn transform will be my random range then i get the position that the first one spawned at with the return value and what do i need to do with that?

sorry im kinda new to all this

[paper galleon]

Store the GetWorldLocation vector in a variable and spawn the next ball at an offset from that vector

[orchid garden]

for instance, if i wanted the next ball to spawn 50 cm from the previous one on the y+ axis, i'd do this:

[stable dove]

wait so i can do it without creating a vector variable to store it in?

[orchid garden]

you could randomize it before or after, then stick it in a var to pass to the front. you need a var because you need your base start position first.

[stable dove]

wait so i should do it like this? or like yours?

[grim meadow]

So i have this major optimization issue and i am not sure where to ask this but here. So for context i am making a tower defense game with 20 waves of ai enemies spawning. So for the waves 10-12 I get 100 fps with everything running smooth. however after that the fps gradualy drops to a point were the last 5 waves i get 15 fps with some major 1-2 sec lag hitches here and there. I thought this may be a too many actor issue as of course it is supposed to get harder, however after all the enemies are dead the fps is stuck at 15. I checked stat game to see the cpu usage it is maxing on everything saying tick (obviousely not good). To see what is causing it in the final waves, i started the match and only spawned the final 5 waves skipping the first 15 (again thinking its cause of increase actor count). But i ended up getting 100 fps and maybe dropping to 70-80 fps when a lot is happening to my suprise. So It almost seems like it starts to lag after half an hour of gameplay (but i dont think that would be an issue, let me know if that is actualy something). My next thought is it could be the spawner running its chain of code to long. It is very simple blueprint that spawns enemy then delays and continues that pattern to the end of the wave where another longer delay happens. Is this causeing the issue? and how could i fix this? maybe have two spawner actors that split the wave counts in half to "lighten the load". Let me know if you have any idea what the issue is and how i might fix it! Also is there a way to check and see what actor is causing the large cpu draw and maybe what blueprints are causing it?

[stable dove]

Am i being an idiot or would something like this add 6-50 to the previous spawn @orchid garden sorry for all the questions

[paper galleon]

Remove the + node and the random float node

[stable dove]

ok

done

[paper galleon]

Connect the set node into the main flow. After the ++ node

[stable dove]

main flow?

the branch?

[paper galleon]

In between the ++ node and the branch input

[stable dove]

idk where you mean

am i meant to add a node here?

[paper galleon]

Yeah.

[stable dove]

add a node there?

[paper galleon]

Connect the set node between the ++ and the branch input

[stable dove]

how do i set it between?

reroute?

[paper galleon]

Just normal connection. I'd have shown you but I'm about to go to bed

[orchid garden]

something like....

[stable dove]

oh

[orchid garden]

that should spawn 3 rows with 3 in each row course you'll probably have to change the plus value depending on the size of your balls.

[orchid garden]

(wow that sounds wrong lol)

[stable dove]

can this be a random range?

thats min is bigger than the ball diameter

[orchid garden]

yep both of the values could, that plus and the X value at the top where i did the row bit

the one I posted should do 3 rows of 3 balls all evenly spaced.

[stable dove]

but if i add a random range there they will be randomly spaced?

[orchid garden]

along the Y axis

[stable dove]

yep

[orchid garden]

lemme do another...

[stable dove]

wait is all of the other stuff for the starting position?

[orchid garden]

this is probably more along the lines of what you want:

[stable dove]

how do you create the NOT node?

i did less than 3 but that probably works a bunch better

[orchid garden]

the Random Float in Range - first value minimal should be the distance from the spheres center, second value would be the max distance to spawn from the ball.

er max distance from the start spawn position...

for not - drag off the pin and type not

[stable dove]

oh

its that easy

i need to use that more

This is honestly so helpfull

[orchid garden]

branches are easier i learned... hold B and click anywhere, instant branch lol.

[stable dove]

im gonna copy this then try and work out exactly why and how it works and how i can manipulate it to do exactly what i want when i wake up tomorrow its like 0:30 for me rn

thank you so much for the help

[orchid garden]

gj @stable dove

best of luck 🙂

[stable dove]

this is like 10x more complicated then anything else in this game i making to learn unreal

once again thanks for the help would have not been able to get anywhere without you

[ivory estuary]

goodluck, trolls!

[haughty fossil]

Does anyone know of a different solution to the mouse cursor graphics not updating without moving it or clicking than shifting the mouse position like a pixel or two?

[high sapphire]

Hmm, been having difficulty finding anything on this, so I figured it was time to ask on here:
I'm using the Vehicle Advanced template. I created basic "you win"/"you lose" HUDs in UMG, I set up a Trigger Box that shows one of the HUDs depending on whether the player has the win/lose conditions
I thought I could use the "Set Input Mode UI Only", but it turns out that only works with PlayerController rather than Vehicle Blueprint.
Is there a way to do this when using Vehicle Blueprint? Or would I have to create my own version that works with Vehicle Blueprint?
Disregard, figured it out

[timber cloak]

@trim matrix I read that you were saying with C++ can treat 10 guys as one actor. Does this also mean I can treat 100+ Units as one Character/Pawn? I am too stupid for C++, just curious.

[vernal wind]

I work with (I guess 'huge') blueprints (state machine via GamePlayTag switch on container) and reached a point where the right click editor menu will glitch out. It will only appear for an instant before vanishing again, rendering the blueprint editor almost useless until an editor restart. It happens if I modify/copy/delete (too?) much in the blueprint.

Is this a known issue or a faster workaround fix known than reopening the whole project each time?

[worthy frost]

@vernal wind happens to me

and found no work around

[vernal wind]

k so another thing for the bug list to study/reproduce/fix later if my thesis deadline passed and I have time for analysis

[tardy kayak]

can i assign a render target to a widget image?

[worthy frost]

via a material yes

or just drop your RT in

[agile hinge]

why it do dat

[worthy frost]

cause you are not taking in the rotation of your doors

you are opening on one axis only

[agile hinge]

🤔

that could be it

lol ty

was setting it based on world rotation not actor rotation

[tardy kayak]

have a you got a good tutorial on render targets to UI right now i am creating render targets live storing a image of what i need then trying to display it on a widget

but i cant get the canvas render target to display on the image

[dawn gazelle]

This one is fairly simple and quick.https://www.youtube.com/watch?v=lw2m6o7xMKI

[tardy kayak]

i need this to happen at runtime

[dawn gazelle]

It is at run time <_<

[tardy kayak]

no i will be creating the camera and render image from that camera at runtime then assign them to widget at runtime

[strange igloo]

Since references to functions can't be passed in blueprints, what's an alternative to accepting a callback function?

[odd roost]

Anyone ever have an issue where level streaming volumes will not load the level?

[stray island]

How to show my fps on run time

Or general performance

[odd roost]

Hit ~ then type stat fps

[stray island]

Whats hit

[odd roost]

Press the button on your keyboard

[stray island]

Which

[odd roost]

~

[stray island]

Ohhh

[odd roost]

Tilde

[stray island]

Sorry

Thanks !

[odd roost]

np lol

[stray island]

But how to show the whole

Perfomance things

Not only fps

[odd roost]

Don’t recall off the top of my head but you can google UE4 stat commands

You can also type stat and look through the ones that come up

[stray island]

Oh its stat ai , thanks

Or maybe not , idk but ok im fine by fps

Wanted this

[worthy frost]

Stat unit and stat unitgraph

[stray island]

Yes , thank u

How i disable it now 😇 i really googled but not finding

[tight schooner]

Just type it in again

[stray island]

But , To clear all stats?

[tight schooner]

Wat

[stray island]

I type wat?

[tight schooner]

Uhh

Whatever stat thing you typed in to show stuff

You need to type it in again

They're toggles

[stray island]

But if i want to clear or disable all , because i randomly showed stuff that idk what it was

Its ok i will figure it out

[tight schooner]

Restart the editor afaik

[stray island]

Alright

[tight schooner]

Having too many stat displays on the screen can affect performance anyway lol

[trim matrix]

anyone know how to set up a interface to send a int from a WB UI to a character ?

[maiden wadi]

@trim matrix WB UI?

[stray island]

I assume widget blueprint UI

[stable dove]

can someone explain to me why this is not working

its spawning all the balls at 0,0

not sure why

[next tusk]

anyone got the voxel sandbox toolkit who really good with it?
https://www.unrealengine.com/marketplace/en-US/product/voxel-sandbox-toolkit/reviews

[maiden wadi]

@stable dove You're setting Position from StartPosition, and StartPosition is not connected to any execution flow, so it's never getting set.

[bright osprey]

how do you reverse a ui progress bar from 100-0 with bp

[maiden wadi]

@bright osprey In what sense? It helps to know what the bar is supposed to display.

[cinder shell]

hey, guys! can someone give me a little help here please? I'm trying to snap one actor to component socket in another actor on overlap. It's snapping for a second and falls. But if I remove socket and just leave None it works just fine. What's the problem?

[cinder shell]

If I attach to any other bone other than socket I create - all works just fine.

[stable dove]

Im really new to this how do i connect it to an execution flow?

oh is that a node

[stable dove]

ah

ok

[maiden wadi]

That circled node needs to be where the green X is between those two nodes, for it to work correctly.

Otherwise the vector remains 0,0,0 which is default.

So, it probably was spawning your ball, just not where you intended.

[stable dove]

yeah now im getting a wierd thing with how the balls are spawning

[compact stratus]

Hello guys, I really need some help, i want to make a cartwheel jump from the 3D mario games and i need to check, if the controller directions or the keyboard value changed around 180 degrees in a very short period of time (walking forward as example and then directly push the opposite controller direction). It has to work in every direction/360 degrees. If someone kinda knows what i'm trying to do, pls /w me 🙂

[stable dove]

https://streamable.com/hrjps5

anyone know how to fix this

[stable dove]

this is the blueprint

[dawn gazelle]

Just going to fathom it's happening because after spawning you're plugging into the loop you already have going.

[stable dove]

yeah but there is a delay

[dawn gazelle]

You shouldn't need this line

[stable dove]

ill try it

now its only spawning one

[dawn gazelle]

well, you're also setting ball count to 0 in your loop for some reason.

[stable dove]

yeah so i want to spawn 3 at once that are 6-50 apart from each other

but i want to spawn the pack of 3 every 2 seconds

[dawn gazelle]

This should do what I think you're looking for.

might want a third person character cast on the end overlap as well.

[stable dove]

ty

ill try this

[brittle reef]

Hello everyone! im making a dash system using an youtube tutorial as reference but by dash only works if the keys are setted different from the movement keys, so if i double tap W nothing happens but if i assign the Y as the key for the dash it works perfectly, can anyone help me in this one?

[solemn parcel]

Hello Hello, what node can i use between 'Self' and 'Actors to Ignore' in a 'Sphere Overlap Actors' ?

Is there an other way than this ?

[thorny cedar]

can someone help me with a audio system? i need a general concept for it

i want to have a function, that is simply called with a soundfile. ok my current setup is a mess and i have no clue how to set it up properly.

it's in VR. so i can't use any built in Systems for Subtitles and audio

[dawn gazelle]

Can you show how you have your double tap currently set up?

[dawn gazelle]

You don't have to set the "Self Array" variable - you could plug the array that you've made directly into the sphere overlap actors node.

[tight schooner]

@thorny cedar my current project has a certain way to spawn sounds and I made a macro-library macro for that. Maybe what you're thinking of can be done with a global macro or function?

[solemn parcel]

@dawn gazelle totally right. thanks

[foggy escarp]

Anyone know of a way to customize the inbuilt destructible meshes so they produce an accurate representation of chopping wood?
I expect that it would mostly all need to be redone, or a custom one built.
The idea I have is something similar to Son's of the Forest. https://youtu.be/fsGVzf-2I5I?t=13
I imagine a modification of the concept could be used for other materials such as rock.
I was thinking maybe it wasn't procedural destruction, but a predefined state of the model being spawned in as sections are being removed.
I think this would work well if maybe there were some clever way to choose the section to remove depending on where it was hit, that way it would work regardless of angle.

[thorny cedar]

@tight schooner can describe it simple ? The system that I built does work, but I guess I haven't understood completely how sound and audio components work in unreal

For something like a audio system I have one main audio component, that I check for valid before actual playing the sound

I also added some aspects like, continue after the length of the sound file through a delay

[brittle reef]

@dawn gazelle this is the character movement from the player controller bp

and the dash is right here

https://blueprintue.com/blueprint/mpyrkvnk/

[dawn gazelle]

So you don't have a double tap set up. You'll need an "Input axis" double tap if you want your forward input tapped twice to dash forward.

I'd give you more than that, but I don't have one set up myself, and after a little searching on google, it seems like it may be a bit complicated to try and explain what needs to be done.

[brittle reef]

well, if i actually double tap I the character dashes foward

forward*

[dawn gazelle]

The thing is, W is normally bound to the Input Axis "MoveForward". So if you always want your player to use the same input of "move forward" for both walking forward and dashing forward if they double tap it, you have to build a double tap system that uses that input axis. Then you'd have to do similar for the other directions as well.

It's not a good idea to use direct keybind events like the L K I, etc. that you have as you can't change them at run time through settings, etc. and if you were to say put in a "W" key event for your dash forward, then if the player changes their moveforward bind, they can only use the dash if they double-tap W.

[sand stream]

hi, does anyone know what i need to give is an object for the function to work? please help

[dawn gazelle]

A reference to an object or actor that is of the class of first_board.

[prime moss]

Do you need visual studio for blueprints?

[dawn gazelle]

If you're editing strictly blueprints, no.

[prime moss]

Ok

[sand stream]

and what could this object be? I'd like to use the value from first_board to be displayed in textblock in another widget

[dawn gazelle]

If you're creating an object of "first_board" somewhere you need to get its reference. Whether you pass that reference in when creating your widget, or if you're doing a "get all actors of class" or what have you, you need to get a reference to that specific object in order to get values out of it.

[astral epoch]

I have a lobby for my multiplayer game, and in that I have a TextRenderActor that should display remaining time before game starts.
I'm using a gamestate to handle the timer countdown server side, and then multicast to every client telling them to update said TRA to display the time.

But the event just isn't being called, even when the beginplay is attached to it.

Ideas?

[gentle flare]

Hey everyone, just getting started in some AI stuff and need a bit of help...

So I got this VR pawn and this ALSv4 character:

And I'm trying to get the ALS dude to move to the teleport location instead of the vr pawn

I got this on the ALS dude:

But it doing this:

But I don't understand why cos ALS dude got this:

If I've put an AI Controller Class on him, why is Get AIController returning none?

[dawn gazelle]

If you put a print string directly on to begin play on your game state, do you see anything print?

[astral epoch]

Just tried that, no.

[dawn gazelle]

You're probably using incompatible game mode / game state. Check your output log for this message.

[astral epoch]

Found that error message.

Cheers Datura

[dawn gazelle]

Also, I'd recommend instead of multicasting, just change the variable itself to an repnotify variable and use the created function to drive any changes as it'll fire when the change is actually received.

[dawn gazelle]

You have nothing plugged into the Controlled Actor pin.