blueprint

[lofty rapids]

ffs

[hoary junco]

there is still an issue where the lighting slightly dims on teleport.. gonna have to look into what the hell is causing that now...

[lofty rapids]

#lighting might know about it

[hoary junco]

also @lofty rapids were you the one who helped me make the directional teleporter yesterday?

[lofty rapids]

idk maybe

i help a lot on a couple servers

[hoary junco]

oh yeah it was you and @versed sun

the reason I ask is I am getting a slight issue with the way it was set up in that it will sometimes trigger both overlap events even when I only go through 1 direction

the directional teleporter that uses this system

[lofty rapids]

i was saying dot product

[hoary junco]

idk how to use dot product though

[lofty rapids]

i remember it was someone else helping you

whats wrong with it ?

[hoary junco]

you said dot product a few times and never really explained what it was or how I use it

[lofty rapids]

so you take two directrional vectors, feed it into dot product

and you'll get a number

that number you can tell if your facing the same direction or opposite

[hoary junco]

so how would I use that here? because I want to make it based on what direction the player enters the teleporter from not what direction they are looking at

[lofty rapids]

hmm, maybe i misunderstood

[lofty rapids]

whats the problem with this method ?

it's probably better i'm still fairly new to unreal

[hoary junco]

like I said sometimes it will fire both overlaps simultaneously

so it will trigger both the front and back teleports even if you only enter it once

it's like one takes priority over the other

[lofty rapids]

so you want to get the direction you entered the portal so even if your facing backward

you want that direction you entered ?

[hoary junco]

yes

so if you enter the portal from the front, regardless of what way you're looking, you go to location A, and if you enter the teleport from the back, regardless of where you're looking, you go to location B

[lofty rapids]

hmm

[hoary junco]

the idea is creating an endless corridor where it's just a loop that you keep going around endlessly if you go around it clockwise, but if you go around anticlockwise you get to the exit

if you've ever played antichamber you know the sort of surreal impossible geometry I'm going for

the overlapping boxes method that Ryck talked about before worked at first, but when entering from the back it would sometimes trigger both the front and the back teleporters at once which would kick me out of the map

[gentle urchin]

Dotproduct should work

Single collider

Double overlap can happen with low framerates

[lofty rapids]

can you just dot product a location or something ?

i mean what if your going backwards is my only thought

like backing into it

ig if thats even possible in the game

[gentle urchin]

No, direction

[lofty rapids]

so i used the forward vectors

[gentle urchin]

You check movement direction

Not facing

[hoary junco]

how do you check that?

[lofty rapids]

that makes sense

[hoary junco]

I'm still really new to unreal so a lot of this is going over my head

how do you get the movement direction of the player character?

[gentle urchin]

Dot product is somewhat similarity of two normalized vectors

Equal == 1.0
Opposite == -1.0
Perpendicular == 0.0

Not sure if CMC has last direction?

Or current direction

[lofty rapids]

maybe https://forums.unrealengine.com/t/getting-direction-of-characters-movement-based-on-velocity/449831

get the rotation from the velocity ?

[gentle urchin]

Not rot

But normalize velocity

Velocity is direction*magnitude

[lofty rapids]

makes sense

[gentle urchin]

So you theres one vector

The other is from the overlap actor

[lofty rapids]

^

[gentle urchin]

GetForwardVector

Add an arrow comp alligned to X to help you visualize forward in scene

[hoary junco]

so how would you normalize the velocity?

[gentle urchin]

Simply add a normalize node

[hoary junco]

with what tolerance?

[gentle urchin]

Default is fine

[hoary junco]

and then dot product the normalized velocity with the forward vector, I'm guessing it will spit out 1 if the player is moving in the forward direction and -1 if they are moving into it backwards?

[gentle urchin]

From behind*

But the other way around

[lofty rapids]

it will tell you if your comming in from the front or back

[hoary junco]

yeah that's what I meant

[gentle urchin]

From behind > 0
From front < 0

[hoary junco]

are there any situations where this could bug out? like of they tried to move across the teleporter at an angle how far before it would fuck up?

[gentle urchin]

Going in front would be opposite of the arrow and forward vectlor if the overlap actor

Perpendicular

Would return 0.0

[lofty rapids]

i actually think it will work fine

[gentle urchin]

But thats sorta impossible

[hoary junco]

which given the teleporter trigger box goes right across the corridor isn't likely

[gentle urchin]

As you would never hit it

[lofty rapids]

i would just put a collision box a bit larger that it so you get the right number

[gentle urchin]

Lines going in parallel goes... well parallel

[hoary junco]

welp, time to delete this entire blueprint and remake it using dot product XD

[gentle urchin]

Parallel wont touch for infinity

Assuming the collider goes wall to wall so you cant enter it from the side 😄

[lofty rapids]

i would just use a compare on it

> go one way, < going another

[hoary junco]

yeah it does

[gentle urchin]

You could include >= to cover 0.0

just in case

[hoary junco]

yeah that's what I was going to use, because -1 is entering from the front then <0 = forward teleport and 1 is entering from the back so >0 = backwards teleport

[gentle urchin]

Its just a single branch

[lofty rapids]

you could just run a default on the 0.0, but that is a weird case if you went in at exact 0

[gentle urchin]

Not sure id bother compare

[lofty rapids]

i think it's not just -1 and 1

but -, or +

[gentle urchin]

If (Dot >=0 )
{
// Front
}
else
{
// Back
}

True -> back
False -> front

That covers all the options

[hoary junco]

uhm, how do I get the velocity from the character movement component?

[gentle urchin]

Is it accessible in the Character?

[hoary junco]

yeah

well, I'm getting the character movement component from the teleporter blueprint

[gentle urchin]

Huh?

Show ? 😆

[lofty rapids]

hmm

[gentle urchin]

This is not the way

[lofty rapids]

so your dragging from character movement ?

[hoary junco]

yeah

[lofty rapids]

like mentioned there is probably a better way to do this

[hoary junco]

wanna explain how instead of just saying it's not the way to do it?

[gentle urchin]

On overlap -> other actor

[lofty rapids]

do you only have one character ?

[hoary junco]

yes

[gentle urchin]

Dont mean to be short , but walking the dog and arriving at home as we speak 😅

[hoary junco]

I have to do the "get all actors of class, get copy" anyway because I added in a branch testing if the actor that's overlapping the trigger box is the player character

[lofty rapids]

you can just do get actor of class if you have one

without the s

[hoary junco]

it starts yelling at me if I do that saying it may slow the game down

[lofty rapids]

but are you doing that on beginplay ?

[lofty rapids]

well i can't imagine it being slower then get all actors

[hoary junco]

no I'm doing it on "on component begin overlap"

[lofty rapids]

ok so is the player the one overlapping ?

[hoary junco]

well that's what the check is there for

if another actor is doing the overlapping it ignores the rest, but if the player is the one overlapping then it continues

[lofty rapids]

thats not how you check that

you want to drag out from other actor

and try to cast to it

if success it's the player

on fail it's not

[hoary junco]

thats what I've done

[wise ravine]

yeah I was just about to say that

[lofty rapids]

again i would just use get actor of class

[lunar sleet]

This is silly 😀

[lofty rapids]

but you shouls be able to pull out of it get the movement component

and get velocity

[wise ravine]

Isn't this the 'correct' way to do this?

[lunar sleet]

It’s one of the ways but yeah I’d go for that one

[hoary junco]

care to actually add something through constructive criticism rather than just declaring something silly then moving on?

[lunar sleet]

I was typing but jma beat me to it

[lofty rapids]

thats not a cast, but i can see how that would work ig, does it work ?

[hoary junco]

it's worked plenty of times before

[lofty rapids]

well i would try the cast and then get movement, then get velocity

[wise ravine]

they're just trying to help you, maybe be more patient

[hoary junco]

I posted a message about a different issue and 3 people jump down my throat essentially calling me stupid because I didn't know the correct way to do something when nobody beforehand had actually told me how and I was just doing it the way I'd been shown too previously excuse me if I'm a little short on patience when people are so fucking quick to point out flaws as if it's something I should have known when nobody had told me previously

[lunar sleet]

Chill, no one is calling you stupid

We’ve all been where you are

[wise ravine]

Using 'Get All Actors of Class' is very slow btw

[lofty rapids]

i'm still learning every day

[lunar sleet]

There’s a few issues with what you’re doing and I keep trying to explain but then have to stop lol

[lofty rapids]

the cast is probably more efficient

probably already loaded anyway

[hoary junco]

this kind of sarcastic remark is normally a comment of "stop it you're an idiot" where I come from

[lunar sleet]

It wasn’t meant to be either but yeah

[wise ravine]

This video is extremely helpful if you're new to blueprint communication. It makes a lot of things make sense. (https://www.youtube.com/watch?v=EM_HYqQdToE&t=886s)

[lunar sleet]

Get actors of class can work but it can become very expensive if you do check it against a class that has a lot of instances

There’s also get actor of class if you want to go that route but keep in mind that as soon as you have more than one instance of that bp in the world, that will just take the first copy it finds no matter which one it is

[hoary junco]

how do you get that yellow velocity node?

that's what I've been trying to find

[lofty rapids]

type get velocity and scroll to bottom

[lofty rapids]

it's not appearing when you drag out of the character movement ?

[hoary junco]

it is I just had to turn off context sensitive

[lofty rapids]

thats strange

[lunar sleet]

It should be in context

Did you pull the character component first ?

[hoary junco]

so as a follow up, with the dot product of these two, does it matter which one is on top or on bottom in terms of what the product will spit out?

[lofty rapids]

i know very little how dot product works tbh

i would just try it both ways

[hoary junco]

ya know the funny thing, I spent days looking up how to get blueprints to communicate with one another, this video didn't come up once

[wise ravine]

thats strange

It is from 8 years ago

if that matters

[lunar sleet]

It basically compares 2 vectors, I.e. to find out if 2 actors are facing the same way. So the order shouldn’t matter

[lofty rapids]

i would test your velocity before you do other stuff because that context sensitive thing just sounds like trouble

[cyan bone]

No matter what i do i cant make my RoundAbout Sequence work...
Its been hours and so far no luck 😦 ... Can anyone help pls?

[lunar sleet]

For more DOT stuff https://store.algosyntax.com/tutorials/unreal-engine/the-dot-product-and-use-cases-in-unreal-engine/

[gentle urchin]

What in the world 😆

[lunar sleet]

Where is that cast it mentions ?

[hoary junco]

@gentle urchin what was it you said earlier about the way to check the direction without having to do a comparison? I've forgotten it

[gentle urchin]

= 0

[cyan bone]

Idk, i think its inside the RoundAbout sequence code itself

[gentle urchin]

Its a comparator, but not using the Compare float node

[lofty rapids]

what is this roundabout a sequence ?

[gentle urchin]

Its just a fancy sequence

[cyan bone]

yup

[lunar sleet]

Well if you made that in #cpp I’d prly show them the code

[cyan bone]

quite awesome by the way

[hoary junco]

like this yeah?

[cyan bone]

saves you time and its very handy

[gentle urchin]

Yepp

Perfect

[lunar sleet]

Well

Positive and zero mean 2 diff things technically but ig it depends how specific you need to be

[gentle urchin]

Not sure how it saves time but it does have a visual appeal to some audiences

[hoary junco]

I mean, a zero situation shouldn't come up but... never know

[gentle urchin]

Yeah 0 is a non-case,

So we add it just to cover it

It shouldnt ever happen tho

Unless its setup wrong in the level

[hoary junco]

just tested, it, seems to be working

[gentle urchin]

Sweet

Full code?

[cyan bone]

Okay the RoundAbout sequence was an April's Fools prank 🐱 😛

[gentle urchin]

Did you get rid of GetActorOfClass?

[gentle urchin]

Ohhhhhhh

[cyan bone]

Did anyone fall for it?

[gentle urchin]

Now i get it

It saves time

[cyan bone]

Did you fall ? Squize?

[lunar sleet]

I rmbr you working on it tho?

[gentle urchin]

Because roundabouts save time

[cyan bone]

nop. was just conceptual

[hoary junco]

for now I just have it spitting out strings

[lunar sleet]

Do they tho?

[gentle urchin]

So now the executions can pass the roundabout at the aame time

[hoary junco]

I did get it triggering backwards twice during the execution at one point...

[gentle urchin]

In simulators yes

If its roundabout or regular cross

[lunar sleet]

These people put traffic lights in roundabouts now so it completely defeats the purpose lol

Now they just serve as a high accident risk

[lofty rapids]

is it working ?

[gentle urchin]

With new code?

[hoary junco]

yeah with the new code, shouldn't be an issue though, the teleport vector is hard coded to each instance of the teleporter using variables so.. it shouldn't be too much of an issue

[gentle urchin]

Should need tohardcode it

Just use the actor forward vector

Add an arrow comp so you know whats "forward"

[hoary junco]

I know, what I'm getting at is the destination of the teleporter is using a variable so even if the teleporter double triggers it's not going to fling me off the map or anything

like it didn't trigger both forward and backwards simultaneously like before it triggered backwards twice when only entering it once

[gentle urchin]

Id prob link them up with references

Still got 2 colliders?

[hoary junco]

no just 1

like this is it now

the box being a box collider and an arrow to show which way is forwards

[gentle urchin]

Neat

Shouldn't trigger twice tho 😅

[hoary junco]

yeah idk why...

[gentle urchin]

Are tping to a new teleporter?

[hoary junco]

maybe like a single frame stutter or something?

no I'm tping to a blank space

[gentle urchin]

Show complete code?

[hoary junco]

still working on it

this is going to look an absolute mess...

[gentle urchin]

Fix first 😆

[lofty rapids]

blueprints get messy fast

i just try not to make lines blend so i can see whats going on

but it's way more difficult than the typical top to bottom where you can just scroll up and down

you gotta do a lot of click drag

[gentle urchin]

Theres shortcut keys

[hoary junco]

ok, now it's not working...

[gentle urchin]

And extensionsn

Plugins

[hoary kraken]

hey so i want to make a call of duty style map for my game where i have to use points to open doors but how can i make the map and the doors work like that

[pastel skiff]

hey so i want to repaet the anim montage in the loop, but it doesnt work, anybody know how to fix it?

[lofty rapids]

you could have an event that checks the points and if you have the amount of a variable set on the door then open it

[gentle urchin]

This looks...

[hoary kraken]

ok, and how could i make the actual map for the game

[hoary junco]

ok nvm it is working I just had it backwards

@gentle urchin it seems you got the dot product a bit wrong 😛 the front teleporter is working if the product is >= 0 but the back teleporter is working if it's <0

[lofty rapids]

wdym ? you design it in ue like normal, what parts don't you understand ?

if you put a variable on and make it instance editable, expose on spawn, then you can put the door in the world

and set the variable for the amount of points

you could check on tick but i would do an event or something maybe that you run when points updates

or probably the most efficient would be to open upon collision if you have enough points

[hoary junco]

@lofty rapids @gentle urchin @lunar sleet @wise ravine got it working thanks for the help all, just need to fix the slight lighting issue and we're good, sorry for getting heated in the middle there but I appreciate the effort

[lofty rapids]

#ue5-general most likely if you don't know how to make a level

[pastel skiff]

how can i repeat an animation in the for loop?

[lofty rapids]

normally i would use a state machin in the animation bp to loop an animation

but the problem your most likely having is the loop just runs really quick

so you see probably a few glitches and the last one play

[gentle urchin]

Doesnt sound right

Me, wrong? Is this aprils fools joke?

😄

[lofty rapids]

i even just use the state machine to do death lol

instead of montage

[pastel skiff]

the thing is that i want to repat it a certin amount of times

not jsut loop constantly

[lofty rapids]

i c, so the problem is your looping to fast like i mentioned

you could run them on a timer x amount of times

but that would take some messing with the numbers

somehow you need to know the last one ended

[gentle urchin]

It looks very hardcoded and strange ..

You normally dont loop anims/montages to play like that

At best you want a foreachloopwait

But even then id reconsider.

[hoary junco]

@gentle urchin so that issue I mentioned before is becoming a problem, when I enter through the back end of the teleporter sometimes it will teleport me twice meaning I get sent through the floor, is there a way of limiting a set location node so it can only trigger a maximum of once in a certain time frame?

actually it's not just happening at the back it's happening on the front end sometimes too now

it's like it's detecting that the begin overlap happens twice even though there's only 1 trigger zone

I guess one way I could do it is make a variable called "is ready?" and set a branch off the begin overlap, and when the teleport executes have "is ready?" set to false, delay for one second, then have "is ready?" set to true allowing teleports again

any problems that could come of this?

[gentle urchin]

Gotta see some code

[hoary junco]

this is what comes off the dot product

[gentle urchin]

I need all of it

[hoary junco]

the reference going itno get position and whatnot is the actor location

you've seen the rest of it dude XD

it's this stuff we did before

I put the "is ready" branch in to add the delay in if that works

[gentle urchin]

Ok so

There's a select node which cleans this up a bit

But for why this triggers twice...

Doesnt make sense to me

[hoary junco]

unreal being unreal?

[gentle urchin]

Do you have two overlapping teleporters ?

[hoary junco]

no

[gentle urchin]

Can you show me where we teleport to ingame?

You said you moved it up 720?

[hoary junco]

yeah if you can see here, the teleporter is down below and "tp pos front" is a vector with a 3d widget that tells you the difference between the 2 locations

so what I do is I add the difference to the player character's location but sometimes it's triggering twice which kicks me out of the level

[lofty rapids]

things don't usually just fire twice

[hoary junco]

yeah idk why it's happening, it's not like there's another teleporter up there the tp position is just empty corridor

[gentle urchin]

So wheres the tp down?

[hoary junco]

on the opposite side of the looping corridor from tp pos front

[gentle urchin]

Ok

Do a print string

From the OtherComponent -> get display name

Alll the way at the very start

[hoary junco]

why other component? it's not hooked up to anything

[gentle urchin]

To check if thats whats going onn

Two different comps of the same actor overlapping

Capsule + mesh, for instance

[hoary junco]

it's just triggering the capsule component

that said I'm now having a hard time triggering the bug

it only happens ocassionally and it's not consistent

[gentle urchin]

Didnit only print capsule while the bug happened?

[hoary junco]

idk I haven't got the bug to happen while I have prtstring added in

ok got it to happen finally and yes it only prints the capsule component

[lofty rapids]

it prints it twice ?

[hoary junco]

yeah

[gentle urchin]

Ok soooo

Add a doOnce

[hoary junco]

also I am running into yet another issue....

[gentle urchin]

(Or you got isReady)

Set to to false on TP,

Then delay 0.1s -> set to true

[hoary junco]

this new issue is I started playing around with the positions of the teleport exits and whatnot, and.. it's only teleporting me along the Z axis...

despite the fact I'm adding together vectors to find the new location for the player character it only works up or down

[gentle urchin]

I wouldnt really add vectors

Id just tp to the new location 😅

Adding is as you notice prone to issues like double add

Which shouldn't happen but if bugs exist then you never know

[hoary junco]

yeah but, what do I do if a player is mid jump and they teleport?

[gentle urchin]

To bad for them 😆

[hoary junco]

it will ground them again which will make it real obvious they teleported

[gentle urchin]

Fair

[lofty rapids]

well do you have a teleport at top and bottom ?

[gentle urchin]

Yes

They do

[hoary junco]

yeah

[gentle urchin]

So

[lofty rapids]

wouldn't that fire twice ?

[gentle urchin]

Set IsReady false

[lofty rapids]

because you teleport into it it my fire off

[gentle urchin]

Then delay (0.1)-> set IsReady true

[hoary junco]

they aren't on top of eachother so no

[gentle urchin]

No they're far appart

[lofty rapids]

when you teleport into it it won't fire off the one that you teleported into ?

as a collision ?

[gentle urchin]

It dont teleport into it

It teleports to the other end of the room

[hoary junco]

no you don't teleport into another teleporter, you teleport to a destination set by a variable

[lofty rapids]

i c

[hoary junco]

but you see how in this one the variable for tp pos back is in the bottom left and the teleporter itself is in the top right, when I enter it, it only teleports me down, it ignores the left direction

[gentle urchin]

So...

After tp set IsReady to false

Then a delay

And set IsReady to true

Should fix it

Since we didnt find the root cause,this is more like a band-aid solution but oh well

Nobody's gonna peek behind the curtains

[hoary junco]

yeah that fixes the double firing problem, but what about the problem of it not teleporting to the right location?

[lofty rapids]

debug one thing at a time

[gentle urchin]

^

[lofty rapids]

best route to fix problems

[hoary junco]

we have debugged the double firing issue

that's why I'm moving on to the next issue

even with the double firing fixed the wrong location teleport is still an issue

[gentle urchin]

What do you want to happen

[lofty rapids]

are you using some sort of offset, or how are you teleporting ?

[gentle urchin]

Current loc + offset vector

(theres also add actor relative location)

Which you can use directly

[hoary junco]

so whenever you create a variable for a vector you can spawn a little 3d widget that you can then move around in world to give a visual representation of where that vector is going, and then based on that it gives you the value of the offset in the variable like this

this is where that teleport is supposed to be moving

it is moving me -740 in the z direction, that works, but it is not teleporting me 330 in the y direction

[gentle urchin]

Think you wanna enable 'teleport' on set location

[hoary junco]

I did

still not working

[hoary junco]

like I did what you suggested and trimmed it down to add actor local offset and set it to teleport like this:

but it still won't work

[gentle urchin]

Looks beautifull

[hoary junco]

yeah but it doesn't function XD

[gentle urchin]

No reason it shouldnt move you in Y tho

It doesnt care what you add

[hoary junco]

I even tried splitting the struct pin and feeding the X, Y and Z values in individually and it's still only moving me on 1 axis...

[gentle urchin]

X doesn't work either ?

[hoary junco]

nope, tried doing this and it still won't work

[gentle urchin]

Somethings wrong here 😆

The shown code should be fine

[lofty rapids]

so thats the location the character should spawn to ?

[gentle urchin]

No, its the delta

[lofty rapids]

current location + that

[gentle urchin]

Ye

[lofty rapids]

why set offset and net get actor location, set actor location

[gentle urchin]

Offset is the same just less nodes

[lofty rapids]

i feel like changing relative is odd, whats it "relative to ?

[gentle urchin]

Its current location

[lofty rapids]

i would try it with get, add, set

[gentle urchin]

Thats what they had initially

[hoary junco]

that's how I had the code before, still didn't work

[gentle urchin]

No difference

Which was expected tbh

Just cleaner to use add

[hoary junco]

yeah idk what's going on but the x and y axis are completely broken when trying to do this teleport

[gentle urchin]

Print the the current location of char

• the offset

Aand the new location of the char

[hoary junco]

ok so this is teleporting up, that works

[wise ravine]

is char, characteR?

[gentle urchin]

Yes

[hoary junco]

this is what happens when I go through the Y teleporter.. it's moving me 32.5 in the positive direction when it's supposed to move me 325 in the negative direction... what?

it's somehow being multipled by -0.1?

wait no other way around same principle

it's supposed to move me +325 and it's moving me -32.5 because the print order is bottom to top

[lofty rapids]

do you alter those values ?

or your just using them straight from how you place them in the level ?

[hoary junco]

so the way the vector variable with the 3d widget works is it's supposed to treat the positiuon of the widget (aka the little purple rhombus) as tthe place the vector is supposed to be pointing to, so when I add that to the character location it's supposed to take me to where that widget is

but it's not

so I tried rotating the widget around and trying it that way and it's not working either it just keeps teleporting me to the same place, about 32 units in the negative Y direction no matter what I input

[gentle urchin]

X moves you ~320

Y moves you - ~33

[hoary junco]

X I haven't tested yet it's Z that works fine

[faint pasture]

you're adding local offset

[gentle urchin]

Yes

By intent

The offset added is local aswell

[hoary junco]

yes... and?

[faint pasture]

Show your math for cooking up those vectors you're feeding it

[hoary junco]

it's just a variable that I set

[gentle urchin]

Its simply adding the offset vector variable

No magic

[faint pasture]

but locally

[gentle urchin]

Yes

The vector is local

To its owner

The teleporter

Char runs into teleporter

[hoary junco]

I showed it, the variable tp pos front and tp pos back are instance editable variables and on each instance of the teleporter has the variable set but it's not going where the variable is telling it to go

[gentle urchin]

And is ment to be tp'ed the exact offset

[faint pasture]

adding local offset of 0, 330, -740 should move the thing 330 to the things RIGHT vector and -740 towards the things UP vector. What result are you getting?

it's relative to the thing

since you're using local

[faint pasture]

Char gets teleported based on the direction the char is facing

is that what you want?

[hoary junco]

no I want it teleported based on the offset of the teleporter

[faint pasture]

well the code you have is doing exactly what I said

you're adding the vector to the victims location in their current reference frame

[hoary junco]

is there a way you can have the vector widget show change in location based on world co-ordinates rather than local?

[faint pasture]

What coordinate system do you want the vector to be in, local to the teleporter?

There are 3 coordinate systems at play here

world, teleporter, character

[hoary junco]

what I want is the character to walk into the teleporter, then to be teleported A number of units in B direction from the perspective of the teleporter

so say 325 units in the teleporter's positive Y direction

[gentle urchin]

What?!

Really?

[faint pasture]

ok so do it like this

Teleport char to TransformLocation(TheVector, Teleporter.GetWorldTransform)

in world space

not add local or anything like that, just set location

[faint pasture]

Yup
This teleports Target in Targets reference frame by Vector

[hoary junco]

I don't want to telepor to an exact location though I do want to offset the character to a different part of the map because I don't want it to be obvious they teleported

I'm basically doing impossible geometry here with corridors that loop back on themselves

[gentle urchin]

Its an infinite corridor, if ran innone direction

[lofty rapids]

you can use the teleporters variables

and just add to the get

i would do each seperately, split the pin because wtf not ?

[faint pasture]

Then do it like this

TeleportLocation = TransformDirection(TheVector, Teleporter.GetWorldTransform) + CharacterLocation

[hoary junco]

what's that in blueprints?

[gentle urchin]

AddActorWorldOffset is then in world ref, right?

Instead of the relative

[faint pasture]

Or you can use AddActorWorldOffset like
AddActorWorldOffset(TransformDirection(TheVector, Teleporter.GetWorldTransform)

[hoary junco]

could you put that in simpler terms because I'm having a hard time wrapping my head around it

[lofty rapids]

because i like to be sure it's doing what i want lol

[gentle urchin]

Adding vectors just... adds vector components (out.x = in1.x + in2.x etc).. 😄

[hoary junco]

so for the get actor transform that's the teleporter's transform I assume? or the player character's?

sorry if I sound absolutely retarded here just... trying to comprehend

[vernal snow]

Hello everyone, So currently im working on making a modular weapon system allowing creation and testing of weapons, using structures + Nested structures etc etc
In the past attempts of this i used Skeletal Mesh Components, which allow input mapping to be added and generally i'd say be a bit cleaner.
So for a bit more context the weapon can be dropped, picked up, reloaded, etc etc, basically using Call of duty as a reference.

Now, currently im working on a newer version that allows weapon modification similar to Call of duty.
So different weapon parts, affecting stats etc.
Issue being A Skeletal mesh component doesn't seem to be able to fit this - and a Skeletal Mesh actor while does the weapon attachment parts doesn't seem to do the interactivity im looking for.
Anyone know if there is something that can act a inbetween of the two or if there is something else to use that's better suited.
Just curious if anyone is able to give a hand and explain how they would do it.

[hoary junco]

took some more experimenting but I got it to work, thanks

[wise ravine]

hey whats the construction script?

[warped juniper]

Hey there. I'm working on a spell system and I want to rework some elements...

I want to put a make the player equip a spell (as if it was a weapon in their hands) by using an Object class.

Thing is, I'm not sure how that works...

@surreal peak Hey there, hope you're doing well... I'm back and will try to redo all this mess.

[gentle urchin]

Whats your current setup

[hoary junco]

where's the lighting channel?

I think the teleporter is working now I just need to get the lighting fixed but I can't find it

[sick sky]

i wonder what "Blueprint Category" is for

[lofty rapids]

#lighting

[hoary junco]

thanks, wasn't in my channel list

[lofty rapids]

channels & roles, browse channels

theres a bunch that are not on the list by default

[warped juniper]

You will cringe.
The player has 2 slots each with a spell ID. The spell is read and pased through a switch to cast the corresponding spell.

Each spell is part of a component that is added onto the actor casting it.

This is inefficient, slow, convoluted and extremely unversatile.

I need to change it. I was told I could make an Object that is created by the actor when casting the spell, BUT noone actually told me how to do that.

[gentle urchin]

This looks...

Fun

So is this in the character bp?

[warped juniper]

Yes. It's all in the character.

Spell elements are however just separate BPs, naturally.

[gentle urchin]

If anything, skillcomp should have the logic and list of all the spells

With some list of initial spells, and a method of adding / removing spells

[warped juniper]

Talk to me like I'm 5.

That's my programming age.

[dim ice]

Hello, i'm trying to implement a small animation logic with GAS , and i have this blueprint and i just wanted to know why i'm no going through the breakpoint, what should trigger Event Received ?

[agile moss]

how do I get a ref to player?

[lofty rapids]

get player character or get player pawn and i think there is others

[gentle urchin]

Skillcomponent should have most of the logic related start executing a spell

[warped juniper]

Okay, so this is what I want to do.

The player can switch between 2 spell slots at will.

[gentle urchin]

Thats fine

[warped juniper]

If the slot is empty, the M1 / M2 inputs are used to cast the spell.

[gentle urchin]

Thats just invoking a function on the skillcomp

[warped juniper]

If not, then the inputs for that spell should be used instead.

[lofty rapids]

are you storing the spells as a number in a string in an array ?

[warped juniper]

For example the fireball here has a normal fire in M1, and a heavy attack in M2.

[warped juniper]

Yeah the array comverts inputs as an INT id, converted into strings.

I would like to use a map instead of a switch.

but every time I try to make a map variable it just... breaks.

[gentle urchin]

Yepp

Map makes sense

With a key for identifying the spell

[warped juniper]

Do tell me how to make a map, I'm losing hair here.

[gentle urchin]

And the spell itself

[agile moss]

thx

[gentle urchin]

Im personally a fan of GameplayTags 😄 they're basically pre-made strings with hierarchy functionality

[warped juniper]

Yeah I love tags, but genuinely I cannot figure out maps.

If you have some explanation to make that, or a video you reccomend, I would greatly appreciate it...

[gentle urchin]

Create your map variable,

As a gameplaytag

Then to the right of the var type clcik the small icon

[dim ice]

Hello, i'm trying to implement a small animation logic with GAS , and i have this blueprint and i just wanted to know why i'm no going through the breakpoint, what should trigger Event Received ?

[gentle urchin]

You'll get a dropdown list of 4 things. Var , array, map and set

[sick sky]

its only usables with GAS right .

[warped juniper]

Wait, how do I create a variable as a gameplay tag?

[gentle urchin]

No

[sick sky]

oh

[gentle urchin]

As you normally create variables, Just search for type Gameplaytag

[warped juniper]

Do I create it straight into the player character?

[gentle urchin]

Is that were you want the map?

[warped juniper]

It's the only place I can use it.

Since it's a singleplayer game and all.

[gentle urchin]

Not true but alright

[warped juniper]

No, I mean.

[gentle urchin]

You can ofcourse put it in the componemt

[warped juniper]

The player is the only one in the game who can use it, or is designed to use it in the first place.

But maybe a component would be better.

[gentle urchin]

Its not only for reusing purposes,

[warped juniper]

That also handles the logic to sort out the IDs.

[gentle urchin]

Its also for code separation

And separation of concerns

[warped juniper]

Yeah, fair. I will make it a component then.

Anyhow, I just made the component and a variable...

So for this, I want to make it so each unique ID String returns its own specific Spell.

[gentle urchin]

(Each gameplaytag?)

[warped juniper]

For that do I use string to what?

[gentle urchin]

Didnt we wanna use gameplaytags? 😄

Avoids typing errors and whatnot

[warped juniper]

I'm not even sure how to implement gameplay tags here

Since I'm not good at coding I haven't figureo out the end goal of this system yet.

Perhaps each person that helps me just goes in a different direction and everything starts conflicting...

[sick sky]

i dont find real examples of use cases of using gameplay tags

[gentle urchin]

The component should:

• hold a list of all avaliable spells
  • a Map of GameplayTag/Skillclass ?
• be able to check if we can fire a spell
  • is it on cd?
  • do we have the rss?
• be able to consume the necessary resources from the owner
• provide methods for trying to acticate a spell by gameplaytag

[warped juniper]

Okay yeah I'm sorry for not explaining properly about this system.

I'm doing something unique and unorthodox here.

Are you familiar with Magicka?

[gentle urchin]

Heard about it

[warped juniper]

So the player can press a combination of buttons and cast a spell to put it on their hand (referred to as a Slot)

Once in a slot, the buttons that normally make the spells now make that spell do their relevant actions.

For example it can fire the spell, zoom in to aim it, charge it up, etc.

In otherwords I would have to make the input events of the spell override the ones of the player.

[gentle urchin]

Pretty interesting

Id kinda imagine this being some gameplaytagcontainer

[warped juniper]

Yeah, and sadly I cannot figure out how to achieve that.

I feel maybe I need something similar to the default FPS template gun but I'm not sure how to get that.

[gentle urchin]

What does that have that helps you ?

[warped juniper]

So for starters.

The gun has its own IA events.

That work in tandem with the player's.

The idea is that if the spell slots were to be occupied, the player's spell casting input could be completely ignored, while now the Spell's concrete inputs take over.

[lofty rapids]

maybe mapping contexts

[warped juniper]

How could I use those here?

I would love to use them but I genuinely cannot figure out how.

[lofty rapids]

i have not used them much i still use mostly the old input system

but my understanding is you can switch contexts

so your button actions would change

and you could do different things, but then you would also need to figure out what spell you were on

but you could also have a mode enum, and switch what the buttons do based on a mode you have set at some point

[warped juniper]

Hm but that would have to go on every single output for the events.

[lofty rapids]

hmm

[warped juniper]

I genuinely hate not being a coder...

[lofty rapids]

i think i would look into context

mapping context in the enhanced input system

you can set it up to have a different set of events in a different context

[gentle urchin]

I think that can get pretty messy

Adding a new spell to hotbar needs a new context

[lofty rapids]

i figured you could just flip it like modes

so just add the thing to the context and it'll work when thats on there

[warped juniper]

Yeah I imagined that as well.

So the idea is this

Whenever there is a spell currently in your hands, the event for casting spells is completely disabled.

Additionally I would need to find a way to make the events always be tied to the same input.

@gentle urchin Okay then, new idea... Enable / disable the mapping context on the player using the Controller bp

[gentle urchin]

When are you " holding a spell in the hand?"

[warped juniper]

This is the logic I already explained

Player slot 1 is empty
Player presses the button combination to get the spell ID 111 and then casts it
Cast spell is put into hand

Now M1 and M2 do the specific spell's actions.

[gentle urchin]

M1 M2 is LMB RMB

?

[warped juniper]

Yes

[gentle urchin]

That clears it up

So you pick the type after combining the spells

[lunar cobalt]

hey I have a sphere trace that hits the same enemy multiple times how do i fix that? Can´t remember how.

[warped juniper]

Yes, exactly.

The idea here is to create a Spell object class into the hands of the player that takes over what the Mouse buttons do.

But if they switch to another spell slot, if that slot is empty, they can simply cast another spell.

[gentle urchin]

And first spell is the 'base' for the rest of the elements. Order matters

[warped juniper]

If the player loses the spell, then they also recover the ability to cast new spells.

I mean order matters but I'm not sure where you got that first part.

[dim ice]

Hello , please i'm struggling with PlayMontageAndWait and Wait Gameplay Event , i've read tons of different sources but i can't manage to make them work

I can do a properly replicated animation but the thing is that EventReceived is never triggered , if someone is up to tell mm few words that can unstuck me , it would be verry appreciated

Thank you again and sorry for bothering

[gentle urchin]

If you start with "fire" element, then the actual spell is gonna be fire based is it not?

Even if you were to add 4 hurricane to it

[warped juniper]

Okay that's not relevant to the logic here...

I'm working first on how to put the spells on the player's hands.

[gentle urchin]

It is relevant for the coding of it

[warped juniper]

Well it works like this

Player can select the element of their spell beforehand.

[lunar sleet]

You mentioned replication, is this a #multiplayer game?

[warped juniper]

That's it.

[gentle urchin]

So does that count as 1 of those up to 5 element/modifiers , or is it 5 in addition ?

As i read magica its 1 + up to 4 modifiers.

[warped juniper]

No no...

The game is like magicka casting, not magicka casting.

Emphasis on like.

[gentle urchin]

😆

[warped juniper]

The player inputs a morse code like combination to cast spells.

[hoary junco]

like the game magicka

[dim ice]

yes i posted it on multiplayer channel aswell

[warped juniper]

No, in magicka you use 8 buttons

In this one you use 2.

[gentle urchin]

Thats not very clear from your description and comparison

[lunar sleet]

Ok, try not to cross-post, it’s against the #rules . You have a better shot there tbh, in case the event received is not firing because of a replication issue

[hoary junco]

so magicka with less buttons

[warped juniper]

The nature is different. For instance, magicka doesn't actually care about order for a bunch of spells

But in my case it's always relevant.

[hoary junco]

yes it does... it's only when you slap random elements together it doesn't care, for the actual spells order is important

[lofty rapids]

so you want to click the buttons in a specific order ?

[hoary junco]

I mean tbh it kinda sounds like the casting version of helldivers 2 stratagems XD

[lunar sleet]

https://tenor.com/view/democracy-helldivers-intensifies-freedom-helldivers-2-gif-1202998951342753696

[lofty rapids]

i feel like your way with the switch does it work ? if so just go for it

[warped juniper]

It doesn't actually work how I need.

At most it makes me run a function based on what is on the spell slot.

But I cannot make more complex spells using that because I'm constrained to using the exact same Input action events.

[hoary junco]

there's something I want to try with this game with impossible geometry but idk if attempting it is going to make me want to shoot myself or not.... basically I want to make it so there's a free standing doorway that when you look through it, despite nothing being behind the doorway, you can look into a completely different room then walk through into said room... I know it's something that's possible because antichamber did it back on unreal engine 3, but I haven't the foggiest idea how I'd even start or what search terms to use to bring up a tutorial about it....

[gentle urchin]

I remember seeing something akin to this

[warped juniper]

For instance, if I want to make the switch work how I want, BOTH spell events need this

[gentle urchin]

Using some fancy techniques

[warped juniper]

With another switch running through the Occupied slots.

[hoary junco]

do you think you could find that thing or how they did it?

because the game I'm making is basically a maze that's full of brain bending geometry that makes no sense and each room has a hint to the actual pathway to finding your way out

that's why I wanted the looping corridor

[smoky solstice]

I made some sprites for health bars and stuff like that but I don't know how to add them to the corner of the screen like i want, can someone please explain how to do this? I'm super inexperienced with UE5 still so please explain as simple as you can if you have an answer

[hoary junco]

look up how to add a UI to the screen via widgets, there should be plenty of tutorials about it

[smoky solstice]

thanks

[warped juniper]

Maybe I should just give up...

[lofty rapids]

create a widget, add a canvas, and add some images, set the anchors properly and set to 0 position

[remote silo]

hi im trying to get information from an actor component that is sent to my third person character pushed to my UI and updated when i pick up coins
but cant figure out how to do it

Widget to ThirdPerChar to AC_Currency to ThirdPerChar to Widget

is this a good system, or should i use something else with currency?
i plan to use this for random loot as well to call a random number to get loot from chests or enemies
trading/widgetInfo/storage/store and so on

[gentle urchin]

Couldnt find it rn

It was some fancy stuff without using scene capture iirc

[hoary junco]

I've put up a question on the forums about it hopefully that wil yield a result...

tbh I haven't even gotten an answer on how to teleport without the light slightly flickering yet...

[gentle urchin]

Widget should bind to a currency delegate in the AC. Doesnt even need to know what type the player is

Get owning player -> get pawn -> get component by class (ac currency) -> bind to currencyChanged.

Store the comp ref, update current value, aand update on the bound event

[stable birch]

Lookup render targets.
Basically you have a camera that that draws what it sees onto a plane, and then you place the plane on your doorway to emulate the "portal" effect

[hoary junco]

the only issue I could see with that is a lack of paralax, like if you moved to the left or right side of the doorway you wouldn't see the room move around as you change perspective angle, it would just be a flat plane view of the room

[stable birch]

The seemless portal thing is def a lot of finetuning to get done properly.

You send the angles you're looking at from your main-camera to the "portal" camera

[hoary junco]

so in code how would this work? Would you get the forward vector of the player's camera component, get the world rotation, then have the portal camera constantly updating based on that?

[stable birch]

You basically just assign your cameras transform to the "portal camera" transform and then add the offset to the portal camera so that its looking at whatever scene it should be

If you want to do the seemless transition between the two areas its a bunch of work~~
you spawn a duplicate mesh (animating identical to your character) so that when you step through the potral (but your main camera is still in the old scene) you're actually looking at the render-target with the "dummy" player character, and once your camera can no longer see the old scene, you teleport to the new scene (and theoretically if done properly the telepor twill be completely invis to the player)

[hoary junco]

would you be able to help me actually put this into code because I'm trying to figure out how it would work

[remote silo]

i love you random stranger, now i have a refrence to what i need look up from here 😄

[stable birch]

Setup a render target with a camera first. Then have that render target placed on the doorway/plane that you want to use as a portal~~

The camera in the other scenes position should simply be the exact same offset from the camera in the original scene.
IE if your camera is 10m from the portal, the "Portal Camrea" is 10m from the portal/area you are teleporting to.
(Note: You might need to make the second portal invisible to the other second camera)

I'm down to help but start there^

[silver blade]

Hey all, I was just wondering if there was a cleaner way to handle switching between preset resolutions for a settings menu; I've got a variable acting as an index (int), and a variable for the resolution (int point)

[stable birch]

Map class (Map resolutions to indicies). In your specific case, you can also just use an Array (and the index of the resolution would then be the "resolution index")

[silver blade]

Ah alrighty, thanks! 😄

[lofty rapids]

whats wrong with a switch anyway ?

looks legit to me

[silver blade]

I just felt like the cycling through branches was a bit of a patchwork approach 😅 if that's not the case then that's fine

[lofty rapids]

idk i'm not a professional, i just think it looks ok to me

[stable birch]

So a switch is generally preferable to use when the actual "branching" of it results in different code executing

In this case we're just trying to map "Resolutions" to "Indicies"

Like wise we can use a single node "Find" (from Map) to properly get the index from the resolution which is obviously less nodes/work then creating a switch statement

[lofty rapids]

i can see replacing the branches with a map

but i don't see how that replaces the switch

i have not used a map in ue, i understand a bit of how it works

[lofty rapids]

thats what the map will fix

all the branches

[hoary junco]

slight issue, I have the render target set up but the mesh I've put it on is doing this?

because it's 1x2 in size it's repeating the texture?

how can I make the material stretch instead of repeating like that? The render target size is 1x2 idk why this is doing this

wait, figured it out...

@stable birch the render target version of the window looks kinda white and washed out, compared to the rest of the scene, is there a way to fix this?

[stable birch]

check if the camera settings between the two scenes is the same

[hoary junco]

both the player camera and the scene camera are using the same camera settings

it's just the default camera

[bitter star]

Hi guys, I have a light fixture with 9 spotlights in a row. I want them to turn on and off in a sequence. I'm using a Box collision to move from one spotlight to the other and back. The box moves correctly but doesnt seem to trigger anything. Here's my blueprint, can you help me finding what doesn't look good?

[lofty rapids]

so you want to do them in sequence and i'm guessing it does them all at once ?

theres a few things you could do "better" as far as performance goes

[bitter star]

So far it doesnt seem to be doing anything

[lofty rapids]

so the first thing is to check if the event is firing

with a print string right at the beginning see if it prints

[lofty rapids]

i think i see what your trying to do, when you collide with a light activate it ?

if your using the collider for that thats definately not how to go about it

[bitter star]

nothing prints..

[bitter star]

yes this is what i was trying to do. What woul be a better way? Sequence and delays?

[lofty rapids]

so the first problem is the collision isn't actually firing

what does the collision settings look like on the box, and the light ?

[bitter star]

the collision on the box is OverlapAll

[lofty rapids]

and the light ?

[bitter star]

I dont see any collision settings on the light

my spotlights are children of another Mesh, woudl that be a pb?

[lofty rapids]

hmm

and the mesh is in an actor ?

[lofty rapids]

i don't think so

you mean in the viewport, or bp wise ?

[bitter star]

the static mesh is children of another static mesh

in the bp

i can see collision paramters on the SMs but not on the spotlights

the parent SMs are both on BlockAllDynamic

[lofty rapids]

hmm

well i would say you got to get that thing firing before you start working with it

[bitter star]

is there a better way to do it without collision to trigger the intensity timeline on each specific spot?

[lofty rapids]

ya because you want them to trigger in a sequence not just on overlap correct ?

if you want them to trigger as you walk down the collision is probably your best bet

[bitter star]

basically i'm trying to do the light at the front of the car in knight rider if you see what i mean

i dont have a player/pawn to enter the collision box

[lofty rapids]

so you just want it to go back and forth ?

[bitter star]

yes 🙂

[lofty rapids]

you could do this with some timers but it's probably super hacky

interval * index

in a foreach

put them all in array

[bitter star]

i just need back and forth for now but i m also looking for a solution that helps me do other patterns later

[lofty rapids]

well you could try it to get it going one way first

then try to reverse it

but i have an idea like i said with timers

you can make a custom event

[bitter star]

how do you put multiple objects in an array? I know the concept but Ive never used them.

[lofty rapids]

you can do make array

and then loop over that

make array you just add the stuff to the pins

it "make" the array

[bitter star]

got it, so once my array is created with all spotlight, where do i got from here?

[lofty rapids]

i'm actually looking at it now to see if it would even work

[bitter star]

thanks a lot!

[frail swan]

I solved the problem where I was getting caught on ledges by lowering my acceleration value a bit. I had it very high so that I would instantly start running, but turning it back down to a still large, but less ridiculous number, seems to have fixed my problem. Also I mentioned this before, but when my acceleration was high, "Use flat base for floor checks" would switch between getting caught, and snapping my feet onto the platform (instead of finishing the jump arc). Lowering the acceleration fixed both versions of this problem

[lofty rapids]

https://blueprintue.com/blueprint/c8q8ucku/

i made the thing visible

but the point is you can run the events in interval using a timer

then i would use a boolean for direction

• in one direction - in the other

and just switch the direction back and forth to get the effect your looking for

or you could make a macro but i don't know how to do that yet

there may be better ways to do that idk

[bitter star]

Let me try this. thanks again for the help

[lofty rapids]

idk how that works with a timeline

i don't know much about latent stuff

[chilly gazelle]

Any thoughts on why my cast is failing here? The controlled pawn here is a child class of AParentSoldier, so I'm not sure why that's happening.

ok so the pawn returned from GetControlledPawn is invalid. Never seen that before

[main lake]

you're getting a "Controller" and trying to cast it to a "Pawn", those 2 types are different so that's why it fails

I guess

[chilly gazelle]

I'm on a controller, so wouldn't getcontrolledpawn return the pawn that is controlled? not the controller?

[main lake]

Oh my bad

[chilly gazelle]

All good! I feel like im taking crazy pillz rn

[main lake]

Is the controlled pawn by that controller a child of "ParentSoldier" ?

[echo pawn]

Try doing it from the pawn possessed event instead of begin play

[silver blade]

Is this C++ only? I don't see any mention of it online 😅

[chilly gazelle]

ok so the controlled pawn, on printing it, is the childclass, BritishRifleman. So why would that not cast to its parent as well?

[chilly gazelle]

yea that's what's returning the child class

[main lake]

print the name of the controlled pawn to see if the right pawn that's been possessed

[echo pawn]

Yep, so that’s where you want to do what you’re doing. The controller spawning is what triggers begin play, it won’t have a pawn at that point

[chilly gazelle]

yea that is the right class, I'm just not sure why I can't cast that to its parent class, AParentSoldier?

[lofty rapids]

i'm not sure you can cast up

[chilly gazelle]

I mis stated what I was saying. These are BP classes that directly inherit from AParentSoldier. Does that still make them child classes?

[lofty rapids]

you right clicked and create child ?

[chilly gazelle]

oh, yea lol good point

sorry, im frustrated with this and not thinking straight

[lofty rapids]

i don't think you can cast up, only down

[stone herald]

https://youtu.be/JzBLiF1FV7s?si=ABXz_W0_bugh6PuY all done in blueprint

[lunar sleet]

wdym

you can cast to any parent

[chilly gazelle]

yea i do it all over lol not sure why my shit is broke

[lunar sleet]

but if you're in the child you prly shouldn't be casting up

[chilly gazelle]

nah im on a controller.

[lunar sleet]

get the display name of the controlled pawn and print that

maybe you're not controlling what you think you are

[chilly gazelle]

yea i have been. I'm on the correct thing and the cast is functioning now, seemingly. Its at least not hitting the 'cast failed' print out, but its also not grabbing the object it should be. I think my system is haunted

and if it isn't, I will be after this

[lunar sleet]

when in doubt, restart engine 😄

[chilly gazelle]

yea i have:( and rebuilt intermediate and bin

[lunar sleet]

but it works now?

[chilly gazelle]

the cast does, but accessing the component i need to doesn't for some odd reason

like I can set the ref in OnPossess and it displays the correct name, but when I try to access it in beginplay, its invalid

[tame grotto]

Try accessing it with delay, maybe it's not fully initialized yet

[chilly gazelle]

where were you 4 hours ago

tysm for the suggestion! idk why i didn't think of that

[tame grotto]

Yep always go with delay if something fails during cast. Especially if you cast from controller since it's created much earlier than rest of the actors

[chilly gazelle]

ok! that's a really good tip, thx!

[tame grotto]

Np^^ But delay is more of a debug than a solution. I suggest replacing it with event dispatcher. Like when component fully initialized make it send an event dispatcher and then on the controller side subscribe to that event and access the needed stuff

[chilly gazelle]

do the nodes on the blueprnt graph account for initialization? So if I slap the event call at the end of that sequence where the cast is made, will it be initialized by that point?

[tame grotto]

The event signal should be sent from the component itself, can do it straight away at the begin play. This way it will "tell" that it's initialized and ready to be accessed

[chilly gazelle]

so are you saying do it like this? Then how do I get this to go to begin play?

sorry, I'm new with events

ohhhh i see what you're saying now, ok.

[twin shale]

My items are created from a Data Asset. In the item object I have a reference to the Data Asset that was used to create it, it houses a bunch of static data for the item. Depending on the type of item there can be loads of blank fields. It's a Data Asset, and it's not replicated or changed or anything at runtime. Are the loads of blank fields going to eat memory or anything?

In a meaningful or concerning way

[bitter star]

How to change the intensity of a light when a moving box collision in the same BP hits the light. I tried with the is overlapping Actor node but the "other" branch doesnt let me input a spot light component object ref

[rare juniper]

Can Someone help, I've been having this problem where every time i plug in this variable a bunch of errors appear but i cant figure out why??

[woven drift]

is there a way to make traditional configs in game files? smth like this:

USSR.T34
{
 engine_p: 560
 ap_dmg: 160
 shells: ap, heat, he
}

or like, any other type of config which is open source so anyone can edit it

[spark steppe]

UDeveloperSettings if you are into C++

otherwise best bet is probably to use some json helper plugins from the marketplace

[dawn gazelle]

Your "Character Movement" variable doesn't have a value set in it.

Perhaps you want to get your "Casted Character" and get the Character Movement Component from that?

[woven drift]

can ue4 even read basic text files through blueprint?

aight i think it would be easier to make variables editable ingame

thru some kind of devmode

[dawn gazelle]

In a meaningful way, yes. A variable without a value is still reserved space in memory to hold that value, or in the case of numeric values, their default value.
In a concerning way, not likely. One int variable takes up only about 4 bytes. A float, 8 bytes. So again, 1000 int fields and 1000 float fields would = ~12000 bytes give or take. Even if you had 10000 items loaded that had these 2000 fields, that would still only be about 120MB. That's not small by any means, but less than 2% of the amount of memory available on an 8GB system, and this is also an extremely exaggerated example.

[rare juniper]

I'm pretty sure that's what i did but ill try again to see if i did it wrong

[dim halo]

do you guys know of any way in which i can spawn the nav mesh dynamically on a platform im spawning mid play? I tried to us the dynamicmodifier only with a nav mesh invoker but that isnt working

[gentle urchin]

Gotta set nav gen to dynamic

[dim halo]

thank you

[wheat radish]

Hey, I have 2 actors and I want there to be no collision between the two of them specifically. How do I do that?

[verbal jungle]

Question: I have an array of 5 floats. How should I find the 3 floats in the array with the lowest value?

[gentle urchin]

sort them

[verbal jungle]

😦

[timber sable]

#cpp

[verbal jungle]

🥺

[timber sable]

glhf!

[verbal jungle]

there is this tho

guess i could use this a few times

[gentle urchin]

you gotta remove the index , but yes

its a little function

a tiny while loop

[verbal jungle]

and i could make a new array by looping the lowest from the old one into the new one, and removing each from the old ones

and pick the top 3 from the new array

then i don't have to worry about having to loop only 3 times

big brain

[gentle urchin]

to be battle tested

Works : )

The entire macro

This might work

Fails if input array is < number of entries.^
Copies the input if its ==
runs the search if theres more entries than number to return

[verbal jungle]

one more thing, "REMOVE INDEX" shrinks the array after removing the item, correct?"

[gentle urchin]

yepp

we also make a copy of the array to make sure we dont modify the original array 🙂

[verbal jungle]

ty

For prosperity, what I was actually trying to do was: I made a BP actor called Nav Beacon, because I want to place a bunch of them around the map as a pseudo-navmesh for an AI flyer. So I needed each beacon to find the nearest 4 beacons as options for the AI.

Ended up with this

[gentle urchin]

I think theres a sort by distance

Native node

For Actor Arrays

nvm

[verbal jungle]

nope XD

[gentle urchin]

it was my own xD

[verbal jungle]

I ought to learn cpp at some point ain't i

[gentle urchin]

yepp 😄

{
    QuickSort(Actors, 0, Actors.Num() - 1, Target);
    return Actors;
}

It opens many new doors, even for simple loops and stuff

access to things that simply isnt bp exposed

[steel shadow]

Hello everyone, I'm making a trace and limiting the time it damages the enemy by 1 per trace but it doesnt work

I'm unsure why

[gentle urchin]

You dont need to check containsn

AddUnique chevks for you

Just check the outgoing index to be != -1

[steel shadow]

the orange are the actors hit

[steel shadow]

hmm

[gentle urchin]

(The out index from AddUnique)

[steel shadow]

?

like so

[gentle urchin]

Yepp

Doesnt change anything, just remives redunandt check

[steel shadow]

Yeah having the same outcome

[gentle urchin]

Seems like hit actor is just hit once tho?

As you wanted?

[surreal peak]

Need to see more of the code fwiw

[steel shadow]

Well there are these ghosts actors that have no name but still makes damage to the guy

[steel shadow]

as you can see here

[steel shadow]

sure which part

[gentle urchin]

You're not checking for blocking hit for one

So Actor hit can be null

Null being added to the array, and attempted damaged

Assuming thenlast pic goes directly to the one we got before..

Would explain one of the empty prints atleast

[steel shadow]

ah okkk

[gentle urchin]

Tho it shouldnt damage the other actor 🙂

[steel shadow]

Yeah so that isn't the issue lol I was mistaken

so the issue is

On the damage GE

Ok found the issue

GE was instanced per execution

[sick sky]

how would you make a static var that is cross instances

[gentle urchin]

Store it in some easily accesible uobject

Which they all just reference

Oh sorry, cross instance. Not cross classes

Sounds like a regular var in bp

Do they even support static/const

[sick sky]

well not really

[gentle urchin]

Const function?

[sick sky]

might do the trick

[gentle urchin]

With hardcoded return?

Ugh

[sick sky]

also,
lets say i have a actor that needs a ACBP ref

if i place this actor in the world, can i "select" the needed ACBP using another actor ?

hard to write the question

[outer frost]

Sadly, I am no longer familiar enough with that sync of paks on runtime server-client to provide relevant help.

[winged zephyr]

is there a way to get a class' variables, get one (set per instance before run-time) and change it during run time? For example I want the variable that I get be an instance variable based on the BP_PizzaChef class' variables.

[gentle urchin]

I'm not really sure what you're asking

the variable you get there is that instance's value

it may or may not be different from all other instances

depending on if you've changed it

[winged zephyr]

What I want to do is set the get part of the function.
Here it is get(CoyoteTime)
I want it to be get(VariableSetInInstance)
This requires:

1. The ability to limit VariableSetInInstance to be variables from the class I want to use.
2. The ability to have a more dynamic get/set which can have both a reference and a variable as input.

Idk it is hard to communicate what I mean, I'm not a programmer ^^"

[wispy jacinth]

I have this problem when i change splines in blueprint:
https://www.reddit.com/r/unrealengine/comments/gycgwj/meshes_placed_on_spline_not_updating_after/

Can anyone solve it?

[winged zephyr]

I'm just going to hardcode it

[gentle urchin]

constructionscript isnt ran on child actor comps

you'd want to wrap it in a function and call that in the owners construction script

Also directly modifying the spline itself doesnt tell the rest of the logic to do any updates

[nimble wasp]

What node would I use if I'm just going to do a bunch of branching? I want to use one node that checks conditions each time it is run. If one is true, it runs that pin.

[versed sun]

i think you want 'Or' node

[nimble wasp]

Thanks!

[shrewd raft]

I need your guide, it's recommended to use actors child for a multiplayer game? Because when I use the BP Actor my game runs well, but if I use a child, my game doesn't work well

[versed sun]

I think Child Actor Components are not good for multiplayer

or not good in general

[gentle urchin]

^

Im not sure why they're so tempting to be used

Guesd they may feel logical at some point

[faint pasture]

Sometimes you just want an actor inside another actor at design time.

That's the one change I'd make to unreal if I could

And it's the most attractive thing about Godot to me

[gentle urchin]

Basically a scene with multiple actors, whitout it being a level?

[faint pasture]

Yes

A house actor that comes with door actors

[gentle urchin]

Yeah that could make sense

I guess that was the attempt with CAC aswell

A house nowaday would be a BPP tho right ?

Or whatever its called

[faint pasture]

The thing that unreal does weirdly compared to many other engines is the fact that an actor is a thing. If you think about it, an actor is kind of like an implied component. You could just as easily have a system where you have prefabs and you put all the stuff that is in the actor nowadays inside of a component

[gentle urchin]

Bpp -> Level instance*

Kinda like a prefab

[sick sky]

so what is the workaround if this cant be done ?

i got some actors that have childs actors such as doors

[gentle urchin]

Level Instances

[little coral]

anyone know what the issue with incrementation happening in this blueprint ? https://blueprintue.com/blueprint/r_gs1_np/
the two arrays in question are of the same length [4] and this is the function which is being called : https://blueprintue.com/blueprint/quwr-zrc/

[lofty rapids]

i heard get actor of class is expensive to do on tick, you may want to set those up in begin play if you can

[gentle urchin]

This looks cursed

Timeline, tick , get actor

[faint pasture]

why is the timeline being played on tick

a timeline is basically a temporary tick

[broken wadi]

April fools was yesterday but that still made me laugh

[lofty rapids]

when adding to the index, your not checking if the index is actually valid before you get

so ig in theory you may get some empty gets

maybe you might get accessed none , trying to access out of bounds

[sick sky]

This is cursed

[sick sky]

Its legit in the description of the node

[lofty rapids]

it's best to try to do that stuff on begin play

i imagine it would kill performance like you say it's in the description

if you think about it, under the hood it has to search all the actors most likely

[gentle urchin]

Probably not to bad but its generally viewed as bad practice

Its fine for editor stuff where it doesnt matter , and 'hacks' are ok

[lofty rapids]

i just feel like if you got a lot of actors it'll be worse than if you have less

i know if i was going to write a "get actor of class" you would search all actors then break when you found it

[gentle urchin]

It worsens the deeper hieriarchies you got

And more actors in the scene to consider

[jaunty solstice]

There is an icon I am trying to disanble entirely in my actor blueprints but have been unable to find the source. Anyone know what this icon represents?

[lofty rapids]

a scene component ?

what happens if you click on it, on the left it should show you what it is

[sick sky]

its called a billboard

you can disable it somewhere

(if i remember correctly)