blueprint

[obtuse oriole]

Why do Character Movement Component Is Falling function kept returning true despite the character capsule is clearly touching the ground?

[lofty rapids]

does the character actually fall ?

or if you move it up is it just floating in the air

[obtuse oriole]

it does fall as normal when I jump or runs off the edge of an object

[lofty rapids]

and your animations are normal ?

i think part of the animation rely on isfalling, so if the animations are working then the value is working

[obtuse oriole]

no, because the Is Falling function kept returning true, the animation thinks the character is still falling

[lofty rapids]

ok that makes sense, does gravity and everything actually work ?

when you jump you land after ?

[obtuse oriole]

yes

I jump and I still fall as it should

[lofty rapids]

what does the animbp look like where you use isfalling ?

[obtuse oriole]

when the falling boolean is true, it overrides the animation entirely with falling animation

I also print debug the function output in the character blueprint itself and it in fact only returns true

[lofty rapids]

thats odd, and what are you using as a floor ? landscape ?

[obtuse oriole]

cube, plane and cone. All same results

they're all in a blueprint because I realized some primitive objects have weird raycast behavior by itself a while ago

[lofty rapids]

so it's doing it on launch ?

your just constantly falling ?

whts strange is you can jump and it lands on the ground

[obtuse oriole]

the function returns false when the PlayerStart collider bottom is right above an object, but as I jump or fall once it breaks

walking on the surface without triggering a fall did not break it however

[lofty rapids]

so jumping is breaking it ?

are you just simply using jump ?

[obtuse oriole]

any sort of falling

either from a jump or simply walk off the edge

[lofty rapids]

are you only dealing with isfalling in the animbp ?

or you have some code that acts on it in some way ?

[little coral]

ok i got the whole sequence to work, thanks to you lovely bunch, but now the lerp function is not triggering for some reason.

[obtuse oriole]

nothing that would interfere with the falling state

[little coral]

the rotator is immediatly snapping the character to the new rotation with no transition

[lofty rapids]

what is scorer+ returning for a timeline ?

[little coral]

a float

[lofty rapids]

are you trying to run a timeline and use the output value as an output ?

[little coral]

the time is called outside, so i had to do some gymnastics to connect it within the function

[obtuse oriole]

you know what, a alternative is simple enough I'll just use line trace

[lofty rapids]

sure but why that did that is something to look into

you can patch it up, but fixing the problem is usually best

[obtuse oriole]

well so far it doesn't interfere with other things, I'll figure it out later

[lofty rapids]

hmm not sure that's going to work

idk much about latent things

[little coral]

cant call a timeline inside a function too hmm

[lofty rapids]

use an event

they do basically the same thing, you can call them and run them

[little coral]

appreciate an elaboration for this noob lol

so move everything out of the function to an event ?

[lofty rapids]

well i'm not sure how to fix it, i'm still looking at it

[lofty rapids]

if you want to use a timeline, make it an event

i know in events you can use timeline

i don't think passing the value like that, and lerp is going to work very well

but again idk much about latent things, i'm still learning

[obtuse oriole]

found the issue, my movement state resolver wasn't set properly to handle the grounded state making it stuck in falling state

[little coral]

you are doing far more than learning bud

[lofty rapids]

programmig been my hobby for long time, so blueprints was easy for me to grasp

visual programming is fun

i'm glad they put blueprints in ue, it's really cool thing

[little coral]

it really is, would be totally lost without it

speaking of AI assistants, i am trying gemini pro 1.5 now

gave it screen shots and a small description of the problem, here is troubleshooting guide.
is it a bunch of mumbo jumbo ?

Gemini pro 1.5

oh god....he totally fixed it with play from start lol

you fix one issue it spawns another haha

from origin point to first target point :

• rotation perfect
• position perftect
  From 1st target to second target :
• rotation perfect
• position perftect
  every shot after reaching third target attempts makes the camera as if its trying to go back somewhere and then returns lol

[tight pollen]

when modifying the structure, I would like it not to clear the variable values. How can I do this?

DataTable?

if the structure is large and I change the type of the variable, it resets all the values ​​that have been set in the widget

or even in case of DataTable it is unavoidable?

[golden kite]

I love those nodes (like String Append) that have an "add pin" feature, kind of the equivalent of JavaScript rest operator. Is there a way to implement this in a pure blueprint custom function or macro?

[lofty rapids]

probably with c++, i don't think you can in bp

[gentle urchin]

Custom nodes yeah^^

[faint pasture]

Did you try setting it up like how I sketched out?

[lofty rapids]

whats more performant, a textrender or a widget ?

[gentle urchin]

Bet its pretty negligable

[pseudo sparrow]

Got a random question, so in my Animation BP, I know I can make random idle animations by putting in a Random Sequence Player, but how can I get different idle animations in a Blend Space?

[lofty rapids]

what about actually spawning them ? is the create widget at all expensive ? lets say it's not may things, maybe just some text and an image, possibly an animation

even if i don't notice much of a difference i like to know what is more performant or if something is going to be a problem at a later point

[undone bluff]

negligable and for extreme cases just profile

but!

[lofty rapids]

maybe #animation might know the best way to go about that

[undone bluff]

I assume you are talking about the widget component?

[lofty rapids]

well i was thinking a 3d widget

i have not used it yet

just wondering if a bunch of 3d widgets on the screen is a problem

ig i'll know if i run into it, but i like to know like i said whats more performant

so your saying it's not a difference, ok

[undone bluff]

depends

so the thing about widget components is they are rendering a widget to a render target

and then display that RT as a texture

[lofty rapids]

interesting

[undone bluff]

for damage numbers I'd probably create and animate them in a widget

[lofty rapids]

thats what i'm thinking as well, because textrender doesn't have animations i'd have to create some wild stuff

makes sense

[undone bluff]

I use this to snap the position of my crosshair to be over a location in worldspace

[lofty rapids]

hmm, so just create it in the main hud widget dynamically, animate it, then delete ?

i c with this i can do what i want to do with the numbers

[undone bluff]

yea spawn a damage number widget, give it a target actor and have it snap to its location on tick maybe

and the animation would be either inside the number widget, or you can add an offset when you set the position (probably better)

maybe even use a curve

[lofty rapids]

well i'm using it for points, so i would just put it above my character and make it float up

thats what i did with the textrender

i'll just try a widget and see if it tanks, i was just wondering because i don't really "need" animations

but people like to see fancy things

[gentle urchin]

Im being lazy

[undone bluff]

yea you could try also using just a single widget component

[gentle urchin]

Spawning widget on an overlay

On a component

[undone bluff]

one per number might cause a problem, maybe

[gentle urchin]

Do anim-> transform up -> delete

[undone bluff]

but one widget component you spawn the numbers in will definitely not be an issue

[lofty rapids]

well i want multiple numbers

[gentle urchin]

I do multiple numbers

[lofty rapids]

but i stop it when it gets to a certain point

i literally use the position to then add to the score

so it floats up into the score

instead of a timer so it works perfect every time

i don't know if an animation could do that ?

[undone bluff]

oh you want it to move to the score

[lofty rapids]

right, like this
https://streamable.com/jzfso6

[undone bluff]

yea I'd definitely do it in a regular widget then

frankly you'll probably want to have 2/3rds of the visible space be in front of the character

the space behind isn't as important

pretty much every side scroller does that and only centers out when you stand still

[lofty rapids]

wdym

[undone bluff]

you'd have a scene component in the character to which the camera is attached instead, and you'd take the player velocity, map it to whatever range you want and then set that to the relative position of that scene component along axis the player moves

[gentle urchin]

Shift the camera center to be a bit to the right of char

Looking left usually doesnt matter

[undone bluff]

or yea just do that

depends on the game

[gentle urchin]

Were it does matter, they tend to shift the offset depending on your direction

I was sure Ori did this 😂

[lofty rapids]

so that the camera sort of follows it ?

[gentle urchin]

But camera just lags behind the char, who usually is in the center

[lofty rapids]

right i know what your saying i had a way i was thinking about to do that

but using the velocity if i can makes sense

i was just going to move the camera left or right based on location of the player and some delay or something

[gentle urchin]

Basic camera lag handles it if you wanna be 'late'

[undone bluff]

hollow knight and ori have you navigate vertical spaces while fighting enemies

centered camera is better there

platformers not focused on combat tend to prefer to lock you onto a specific z axis and only shift up when you start moving out of the screen

and because you won't be flanked by enemies from behind they prioritize the space in front of you

[lofty rapids]

i c

[lofty rapids]

i'll play with the velocity range thing see if i can make it look better, that messes with the points going up into the score that will be a bit more difficult

[gentle urchin]

Here you see offset changed based on the velocity of the player

[undone bluff]

damn that is a really well done camera system they got there

the pan down that accelerates faster than the lift is a nice touch

though thinking about it that is probably just driven by the same logic that handles the camera offset while running

just a nice side effect

[wet marsh]

Question; In Unity you can call this in C# to get a reference to a world position Target.position where Target is a Transform component. The versatility comes from the fact that every single GameObject in the scene must have a Transform component, so you can easily get the position of any Target that is passed in.
What is the Blueprint equivalent of this?

[undone bluff]

every actor in unreal has a root component and its transform defines the transform of the actor itself

unless I misunderstood you

[wet marsh]

So the type of variable in Blueprint land would be Actor

?

[lofty rapids]

you can store transforms

[wet marsh]

Yes, but can I reference another actors transform by storing it as a public variable?

[undone bluff]

any object placed in the level is an actor and you can access their transform

[wet marsh]

Okay. Then I think Actor is the type.

I have a camera that needs to orbit a target, but the target could be anything, really.

So the "anything" in Unity would be Transform.

The "Anything" in Unreal sounds like it's an Actor.

[undone bluff]

yea just have an actor reference and get the location from there

[wet marsh]

Alright, thanks.

A bit of a problem that I can't set a class default value for an Actor reference.

[undone bluff]

what exactly do you intend to do?

[wet marsh]

I'm currently trying to transfer some Unity code to Blueprint

[undone bluff]

you can make it a class instead of an object reference but I don't think that's it

[gentle urchin]

Seems it just extrapolates based on velocity

[wet marsh]

And in Unity I'd ask for a transform reference in code, then in editor I'd set the transform I want as the target by drag-and-drop.
In Unreal, the character blueprint is just another blueprint™️ so there are no editor instances of it until runtime. At that point it's too late to set a reference.

[undone bluff]

ah I get it

when you have a public actor reference

[wet marsh]

The idea is to let designers have freedom to choose but that the default reference could exist in it's own hierarchy

[undone bluff]

and both actors are in the same level

there is an eyedropper tool in the details panel

[wet marsh]

It's greyed out

[undone bluff]

so you can select the target actor there and get its location

[undone bluff]

you need to set this on an instance

[wet marsh]

But you know, it hit me that I should separate out the actor I'm working on so it's separate from the player.

[undone bluff]

you can't add a reference to an instance in a class

really though

are the camera and the target both actors?

if the camera is or is managed by a component in the actor it can just get its owner

if they are actors they'd probably still communicate

or some kind of manager is aware of them both and can give a reference

the approach depends on the specifics

[wet marsh]

I think I'll do what I did in Unity and see how that works. Basically the camera is just it's own and you can drop one in scene, customize it and then point it to a target in scene as well.

In Unreal I'll probably just tell it to find the Character controller in the scene until I find a different setup.

[undone bluff]

yep, what I suggested sounds like what you want

public actor reference for the target

and then when you place the camera in the level you can eyedrop it to any other object in the level

alternatively consider making a component that spawns your camera and attaches it to its owner

then you add that component to any actor you want

[gentle urchin]

+1 for team component

[river comet]

Help me, please. I have a FPS Player and a Drone (type Character). I possess FPS Player and use Input to control that Drone (look like remote control drone). But the function Add Movement Input on Drone doesn't working. If I change possess to Drone, the function works normally. All Input have written in Player Controller for general using when changing possessed player.
The issue only happens with Drone spawned from Blueprint. With Drone is placed to the world at the editor, the function works normally (meaning I can control Drone when possessing FPS Player).

[wet marsh]

Another question; Does Unreal have a LateUpdate type tick?

Or is it only Tick?

[undone bluff]

why don't you possess the drone and how are you moving it?

[gentle urchin]

You can change the tickgroup of a bp

[wet marsh]

But if I want Tick and Late Tick in the same BP, that's a no?

[gentle urchin]

Thats a no out of the box atleast

Guess you can abuse a second actor to get the second tick

[wet marsh]

Alright

[lofty rapids]

problem is the scene component rotates with the capsule

[undone bluff]

not necessarily

[lofty rapids]

i can set the position manually ig

[undone bluff]

boom, it'll not inherit the rotation

[lofty rapids]

bingo thanks

[wet marsh]

You know, I know that I wrote this line. But I'm not sure why I wrote it like this.
if (StayBehindTarget == false ? SetRotation() : SetRotation() || OrbitBehind())

If the first condition comes out as true, then return a bool from SetRotation()
If the first condition comes out as false, then either SetRotation() OR OrbitBehind() must return true

[violet spoke]

Got problem with top level asset path, but what path is for Texture2D ?

?

[main lake]

How to make my child gamemode execute on his "onLogin" the parent's onLogin code first then execute what I'm adding to it in the child onLogin event ?

[wet marsh]

Since Epsilon is not an accessible value in Blueprint, what does one use instead?

[gentle urchin]

This also is one of the cores of OOP

[main lake]

?

[gentle urchin]

you know what I'm talking about 😛

Right clicking the node -> Add call to parent

[main lake]

Yeah but I don't know how to do that in blueprint

[main lake]

Thank you 🙏

[flat coral]

Crashed Unreal Editor with this error...
Fatal error: [File:D:\build\++UE5\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp] [Line: 1459] Failed to find function DelayedSave in BP_LevelGameMode_C
And it's correct! That function was removed.
But like, from this information how do I find WHERE that reference to the deleted function IS?

[gentle urchin]

Hopefully you're not a vivid user of Set Timer by function name

[lapis turret]

hello
i have an base spell with a tsubclassof<baseanimation> called animclass. i set the animclass to projectileanimation, which derives baseanimation and contains some variables with the expose on spawn meta tag. but when a try to call spawnactor on projectileanimation in the unreal editor, it doesnt show the exposed variables of projectileanimation, only baseanimation. i see why this happens, but i dont know what the best solution would be to be able to set different variables on spawn depending on what class i use.

[tight pollen]

someone?

[wet marsh]

Is it possible to do a BoxCast in Blueprint?

It seems I can only find raycast

Or "line trace"

[lofty rapids]

there is sphere trace i think

[gentle urchin]

Isnt there boxtrace aswell

[dawn gazelle]

I don't think this is possible in blueprints. If you want to have "dynamic" exposed variables, then I think an alternative would be to have some exposed TMaps of say GameplayTag > Int / GameplayTag > Float / etc. in your base class, then have an overridable function that you call on begin play that populates the values from these maps into the appropriate variables.

[gentle urchin]

Isnt there boxtrace aswell

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Collision/BoxTraceByChannel/

[cobalt gulch]

How can I make the player's head look at a location smoothly without jumping to it

The code above looks at the right location needed but it snaps

[lapis turret]

thanks im gonna try this

[violet spoke]

is it triggerable? or it continously runs?
you got few options.
lerp or timeline for triggers.

Or adding rotation * rotation speed every tick

[lunar sleet]

#multiplayer is prly best place to ask

[flat coral]

What's the easiest way to find out WHERE this call actually is?

Keyword search I guess. Awkward that there's no link

[steady night]

Hey advice!

im doing a gun fire function and i wanna add some simple spread, how would i best do it ? just add some offset to the forward vector or ?

[faint pasture]

Tick -> interpolate

smoothly means per frame means something somewhere is doing the work on tick or the equivelent

you could do it in your anim bp

The typical pattern is:
WhateverEvent -> set target
Tick -> interpolate actual towards target

[faint pasture]

Depends. Realistic spread is typically a cone distribution so I'd start with the random unit vector in cone

[stark thistle]

@steady night I'm new myself, but IIRC keep Start as it is now, but in the add pin right before you End (where you're adding the Forward to the Location) you will also want to add some random "jitter" to the location. That is, you'll add some random (- or +) values within a range to the vector before sending it to End. The amount you want to jitter depends on what kind of game you're doing, what kind of weapon you're firing (shotgun vs sniper rilfe in a scope vs sniper rifle hip fired, etc), etc.

[faint pasture]

I'm trying to think if there's a way to do it with no rotations involved

[steady night]

yeah thats what i had in mind it just depends on the total range of the "bullet"

how much offsett would be needed and so forth

[stark thistle]

https://forums.unrealengine.com/t/how-could-i-create-weapon-spread-via-a-line-trace/351407/3

There's someone else's BP doing the same thing

Should get you started

[faint pasture]

I would probably start with this, then transform it based on the transform of the actual aiming thing

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Math/Random/RandomUnitVectorinConeinDegrees/

[stark thistle]

Oh that's even better

[steady night]

oh

i mean this is a super simple version

[faint pasture]

that'll work but it'll break down in certain orientations

[steady night]

the cone is way better tho

yeah

[faint pasture]

is this a 2d or 3d shooter, are you ever shooting up or down or mostly in the horizontal plane?

[steady night]

3rd

[faint pasture]

yeah I would use
TransformDirection(RandomVectorInCone, PistolFireLoc.GetWorldTransform) as the vector direction

feed spread into the random vector node

[steady night]

https://gyazo.com/ebe95a43ddaaf308e8fd46764f75fd72

co

like so ?

nah not sure how the random unit ivector in cone works :/

[faint pasture]

just feed the spread in

[steady night]

what would the value range be ?

[faint pasture]

if you feed it a 5 it'll be a cone with a 10 degree angle

feed it a 45 and it'll be a 90 degree cone

[steady night]

oh

[craggy flicker]

What's the easiest way to create a struct in blueprints where I can store room data? I.e., I want to store:
Vector3 Position
Vector3 Size

In one variable called Room or something

like multiple variable types in one

[steady night]

i have it on 45

https://gyazo.com/981b2e7f8c73defea16c299744e00c78

[queen dagger]

i am absolutely stumped

i have to characters and one is ai and the other controlled but the animation components seem to be linked in terms of input from the controller

[lofty rapids]

i'm trying to get the interp speed correct i'm using vinterp

https://blueprintue.com/blueprint/cdtwal3o/

i figure if i can calculate the interp speed right it won't slide so fast when i change directions

i thinks because it's set to 1.0

it going the bigger distance in 1.0

[undone bluff]

if you want interpolation just use a springarm with lag imo

ah I can see how changing direction would be an issue

your character probably has high friction

[lofty rapids]

how did you make the second character ?

since it's not moving, seems like just the animations

[lofty rapids]

ok i'll look into that, i was just trying what you said and it's difficult

almost had it but i was just trying random stuff to get the interp speed

[gentle urchin]

Velocity isnt normalized

this suggests that you think it is

velocity is direction * magnitude

so you'd want to normalize that beofre multiplying with CameraMover

[haughty iron]

Right click in the context browser and create a structure from the blueprint section

[craggy flicker]

yea i got there lol thank you

[undone bluff]

no we do want the vector length, but I'd suggest mapping that to a float range

[gentle urchin]

fair enough

[undone bluff]

maybe increase lag when in a low range

not sure

gotta try stuff out

[lofty rapids]

i just scrapped it it wasn't that great of a feature for this particular game

i will try with lag

see if that is any better but it didn't seem to good to play

once things are smoothed out might be better

[feral patio]

I am currently trying to set an Enum that i am using to control a 2d character's animations, but for some reason my code isn't setting the Enum to Right or Up. When printing the values of Velocity X and Y, everything is as expected, its just the Enum that isn't being set correctly. I think my math is somehow off.

Another weird aspect is Up and Right can be set sometimes, but only if both Vx and Vy are non-zero values, its so weird

note: Due to the orientation of the CharacterMovement component, Down is a Positive Vx value, and Left is a Positive Vy value, dont ask why lmao

[gentle urchin]

are you controlling a sprite with this 😄

[feral patio]

yes, in the style of Octopath, that 2.5d style

[gentle urchin]

// Do we have any velocity?
if (Velocity.Length > 0.f)
{
  // Is our X bigger than our Y
  if (Abs(Velocity.X) > Abs(Velcotiy.Y)
  {
    // Is X Positive
    if (Velocity.X > 0)
    {
      Direction = Up;
    }
    // or Negative
    else
    {
      Direction = Down :
    }
  }
  // Our Y was bigger :) 
  else
  {
    // Is Y Positive
    if (Velocity.Y > 0)
    {
      Direction = Right;
    }
    // or Negative?
    else
    {
      Direction = Left;
    }
  }
}

[lofty rapids]

and it's smooth when you swap any direction at any time ?

[gentle urchin]

yes

[lofty rapids]

i'll give it a try, idk if this will even work for this game but it's worth a shot i like to try stuff just to see and also to learn

[gentle urchin]

interp speed is pretty low

i got default movespeed to 600,

so 0.5 for multipler and 1 for interp speed was alright for me

If it's to fast I think it'll be painfull for the player : P

could make it adjustable in a settings menu tho

[feral patio]

whoops turns out i accidentally only set the value if vx or vy were positive in the previous branch, lol, lmao even

[lofty rapids]

it worked really well actually

[gentle urchin]

worked like a charm

[lofty rapids]

i didn't know there was a socket offset

[gentle urchin]

spring arm is underrated ^^

[lofty rapids]

https://streamable.com/qm9dq0

[gentle urchin]

pretty smooth yeah

i'd say it might be a tad fast still

causes a lot of movement whenever you switch direction or just start moving ^^

there's also easeinout if you wanna try that

not sure how well it works with dynamic start tho

probably not so well

[lofty rapids]

it's playable

idk if i'll leave it but i'll test some settings like you said

[gentle urchin]

slap a bool on it so you can deactivate the feature 😄

[lofty rapids]

probably

[steady night]

@faint pasture ?

[lofty rapids]

it's not bad actually when it's subtle adds a bit of movement to things and it's definately playable like this
https://streamable.com/7l3nj8

just i use velocity all over the place

so it's a little f'd at times but not too bad

[gentle urchin]

Nice nice

Makes it feel more alive

[crimson prawn]

hello, any reasons why the hide bone by name node doesnt work for children of a skeletal mesh?

[faint pasture]

not at all

use transform direction vector

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Math/Transform/TransformDirection/

[steady night]

@faint pastureoh ok but what transform :/?

[faint pasture]

the transform of the muzzle or whatever you've been getting the forward vector of

you could also use rotate vector which would do the same thing

[toxic copper]

Hi folks, just started with unreal so I apologize if this is really obvious. im trying to build a "choreographed" bullet hell attack, but nothing fancy for now.
Basically I created an actor with a ton of different arrow components to indicate where projectiles would spawn//what direction to travel.
I then set a map for integer:Transform, to where I got the world transform for each arrow, and input an integer to represent each arrow.
I then created a timeline that "Finds" from the map, pulling the integers from the timeline. However, I notice that sometimes it'll fire in a random direction, or some directions get completely skipped

[faint pasture]

random vector in cone will give you a vector in a cone centered on 1,0,0
rotating or transforming that vector with the rotation or transformation of your muzzle will rotate the whole thing to align with the muzzle with the random offset

[bitter star]

Hey guys, I'm trying to set a variable's value from a blueprint inside another one. I cast to the blueprint that holds the variable but I'm not sure what to put in the "object" pin. Isn't the "cast to BP... " already referencing my other blueprint?

[faint pasture]

framerate and aliasing

Use a timer instead

timer, index math, an array of scene components as your firing locations/directions

Timer fires -> increment counter -> choose scene component -> fire bullet from it

[toxic copper]

just to clarify: you're saying the issue im having is due to framerate and aliasing, and are proposing using a timer instead?

[faint pasture]

yes

you're either skipping over or double firing some bullets as the float is just barely going above your truncated cutoff

the timer method will never fail, if framerate drops too low it'll of course have to fire multiple on a frame but it'll still not skip any

[toxic copper]

i think i see. honestly not sure i fully understand, but im all for any improvements that will make it more consistent

i just started this last week, what timer node do you recommend?

[faint pasture]

https://docs.unrealengine.com/4.26/en-US/InteractiveExperiences/UseTimers/

[toxic copper]

Thanks so much

[proven sigil]

so i im trying to make a container that a player will find loot in but ive followed the belove video (re checked it twice) and when i go to interact with the container nothing happens and my interact key works because i have a item on the floor im able to pick up and see in my own inventory any sugestions? also this is my first ever project so im really new to unreal and code stuff in general https://www.youtube.com/watch?v=l6eXqK0zHHI&list=PL4G2bSPE_8umjCYXbq0v5IoV-Wi_WAxC3&index=11

[little coral]

Ahhh small question
i created a menu widget and would like to open the level when begin button is clicked
it does load the level, but the menu does not get removed

the main menu is loaded in the main level blueprint and this is the main menu blueprint

this is where it is added in the viewport

[lofty rapids]

is this #multiplayer ?

[proven sigil]

yes it will be a multiplayer game

[lofty rapids]

is this beginplay of the character ?

[little coral]

i dont think so it is in the main level blueprint

[little coral]

i created a loop not knowing, it reloads itself

damn that took time to figure out haha and oh that is gonna take some gymanstic to fix

[bitter star]

I have a laser system in a BP and I want to modify the intensity value set in its BP in a different BP. I created a laser variable (actor ref) and used cast to the BP. unfortunately it's not working. Does something look wrong?

[lofty rapids]

what did you set laser to ? or how did you set the actual reference ?

[bitter star]

The value i'm reading with print string is correct

[bitter star]

Actor ref then clicked on the object in my scene

[lofty rapids]

so the cast is not failing ?

[bitter star]

it doesnt look like it as my print string works until the end of the chain

[bitter star]

It's referencing to the laser BP

[lofty rapids]

so your print string works after the cast ?

[bitter star]

yeah

[lofty rapids]

the value is correct come out of the clamp ?

[bitter star]

yes

[lofty rapids]

it's not updating the variable ?

it should be

[bitter star]

no it's not

I know....

[lofty rapids]

are you setting that variable elsewhere ?

[faint pasture]

Why are you casting here

casting is not a "send a message"

[solid needle]

is this normal?

making an anim montage that is 197500 frames long

[bitter star]

yes in the laser BP

[solid needle]

the parent is 79 frames long 😭

[faint pasture]

Your code here is asking "Is Laser a BP_Laser_perspective_mode? If it is, set its visibility to this float"

[lofty rapids]

and you probably don't need cast if you selecte the exact object ?

it should be that class

[faint pasture]

Show where you tell Laser what it should refer to

show where you set Laser

Probably nowhere

[solid needle]

how the hell can i chnage this to a normal range

[bitter star]

Im using the "laser with shadows" assest and the set intensity variable is editable in the outliner. The BP is big so I cant screenshot it

[faint pasture]

You have something that wants to talk to A laser in the world, correct?

How does it know WHICH one to talk to?

[bitter star]

I though casting to the BP and referencing it woudl work. Once I cast to the BP I can set the value of the variable from that BP

[faint pasture]

I'm guessing what you have is a variable called Laser which is of the type BP_Laser_whatever reference.
You need to set that. You're saying that Laser REFERS to a BP_Laser_whatever, but you never tell it which one.

casting is not what you think it is

is there anywhere in your code where you SET Laser?

You have a bucket that can fit a laser in it but theres no laser in it since you haven't put one in. It's just a laser shaped bucket.

[proven sigil]

does anyone know whay this would be failing?

[faint pasture]

PlayerController 0 is not a MyController

assuming it's failing the cast which you mean by "failing"

Probably GetActorOfClass on begin play

[bitter star]

Ok, so which node should I use in my "main" BP to tell it to go look for BP_laser, find the intensity variable and SET it?

[faint pasture]

if the laser is around and there's only one of them it'll fetch that reference

but it's up to you How does your main BP know which laser it cares about?

#animation

[solid needle]

mb

[faint pasture]

also check what's being exported with a fbx or gltf viewer

[bitter star]

Theres only one

[solid needle]

gotcha

[faint pasture]

Explain the setup, what is this laser and what is holding it etc?

[proven sigil]

im new im not sure what that means tbh and i only said failiing cause it prints the string i set to " cast failed"

[faint pasture]

is it a laser being held by a character? or on a character's gun?

[faint pasture]

It means exactly what it sounds like

have you told the gamemode to use MyController as the default playercontroller?

[proven sigil]

well ive been following a guide for a inventory system and he created a controller called "my controller" ive tried to merge the two before and had issue

[bitter star]

it's just a laser like a concert laser.

[faint pasture]

ok so just a laser in the world. Using GetActorOfClass will work fine for now

[faint pasture]

Do you have a custom gamemode class?

if you do, show its properties for default pawn and playercontroller etc

if you don't, then your playercontroller isn't being used, you need to make one

[bitter star]

this doesnt work, should i go straight to getactorofclass without cast to ?

[faint pasture]

The cast is failing because Laser isn't anything

if you remove the cast it'll work

but you won't be using the Laser variable at all

[bitter star]

i dont care about the laser variable, i just created it to ref

[faint pasture]

you'll want to instead have:
BeginPlay -> Laser = GetActorOfClass(BPLaserWhatever)
Tick or Whatever Event -> Laser.Visibility = Clamp(whatever)

What you have is like looking someone up in a phone book every time you want to call them, when you could just save their number

[proven sigil]

i dont think i do? my player controll class is still default but when i try to cast to the other controls one of my vairables says its not combatible with it

[bitter star]

when i remove the getactorofclass from my chain and put it separtely at the eventbegingplay then my SET intensity lacks a target :/

[dawn gazelle]

The "HUD" variable target is expecting a "MyController" reference. Your "BP_FirstPersonCharacter" isn't and does not inherit from "MyController".

[proven sigil]

ok so how would i fix this? sorry its my first project so i dont really know anything

[lofty rapids]

probably along the way you didn't set you controller in the game mode override

[dawn gazelle]

Well you can't plug in the BP_FirstPersonCharacter into that target as it's not what it is expecting. In order to specify what your default PlayerController class is, you need to create a custom game mode. When the custom game mode is created and you specify it as the game mode to use for your level, then you can select the default player controller class to MyController. Once that is done, that cast should probably succeed.

[proven sigil]

ok so how do i check the default class is it in the "BP_FirstPersonGameMode" because when i change the controlls there i lose movement from both my mouse and keys

[bitter star]

The print string shows everything is working but it's actually not doing anything. The value is correct, but has no impact on the variable that I'm trying to modify. Event begin play goes into my osc handler

[proven sigil]

It’s late for me so I’m off to bed but thanks for the help anyways @faint pasture @dawn gazelle

[faint pasture]

Are you sure changing that variable does anything?

and when is that variable being changed, all the time?

[craggy flicker]

Hey guys, I'm having trouble with some basic geometry lol. I'm trying to check if two boxes overlap. I have the four corners of each box as vectors. I thought I could do:
RoomA.MinX < RoomB.MaxX and RoomA.MaxX > RoomB.MinX
and
RoomA.MinY < RoomB.MaxY and RoomA.MaxY > RoomB.MinY

But I'm pretty sure my blueprint nodes need some correcting or im misunderstanding something

im trying to build a dungeon generator from scratch

[faint pasture]

overlap at all or overlap completely?

and are they axis aligned or at any old orientation?

[craggy flicker]

completely so there's no overlap on any corner

they all basically start at the DungeonGenerator origin, then pushed on the X,Y axis as their position

then scaled via X, Y

for size

[little coral]

Hi Again

How can i stop the menu from creating itself on each level load ?

[craggy flicker]

this is how i calculate the corners

[faint pasture]

That seems like a bit much, just need to make a function to check if a point is inside a box, then check that all 8 points are inside the box in a loop

might be correct but it's pretty unraveled

[craggy flicker]

to "check if a point is inside a box" is what im doing tho

[faint pasture]

just make a function to do the one

then call it in a loop on all 8

[little coral]

in the main menu there is a button load the level but its loading the menu with the level lol

[twin perch]

got a quick question about the construction script.

if i spawn in an actor, is it possible to have it set a value on spawn ? like a constructor would in code ?

For example i want a damage number to fly out of my enemy, on creation of the actor i want my Enemy script to send whatever damage is being delt to the enemy to the actor on creation.

[craggy flicker]

Oh you mean for checking each of the 8 xs and ys

[versed sun]

❓

[craggy flicker]

bruh

[faint pasture]

lmao

[craggy flicker]

🤦

iSpOiNtiNboX

smh

[faint pasture]

watch there be a "IsBoxInBox"

[craggy flicker]

smh smh

im physically cringing at myself

[little coral]

❤️ pat pat

there is no shame in learning bro

we all learning here

[versed sun]

you got +12 BPXP

[twin perch]

it happens my man dont let it get to you

there are a billion usefull nodes in unreal ...

[bitter star]

Yeah when I use the slider in the outliner

[craggy flicker]

what do you mean by each load? like each time "begin play" is called? I don't think that's possible since you need to add the menu to the viewport through some execution...

[bitter star]

Only when I move a slider in Resolume. It sends an OSC message that is received correctly by unreal

[little coral]

i create the mainmenu widget in the HUD, and on it there is a button to load the level, when the level loads, i am back on the menu, it does not actaully go to the game

[undone bluff]

yea, frankly just make an entire gamemode just for the menu

[craggy flicker]

you can try setting the visibility of the main menu to none

[craggy flicker]

this is the right way

[undone bluff]

why'd you use the same hud class for the main menu and game

unless you do them both in the same level, but then you'd not be having this issue

[craggy flicker]

i feel like having no main menu level is just bad design imo

[undone bluff]

interesting, how come?

[faint pasture]

Is this the part where I tell you about how we have 1 level and that's it?

never change level

no hard cuts from startup to shutdown

except for the unavoidable hard load when joining a multiplayer game

[craggy flicker]

isn't it a lot of extra work though

[undone bluff]

just cause 3 does it too

[versed sun]

any downside to that ?

[undone bluff]

initial loading time for one

[faint pasture]

it's proc gen so not much to load

[undone bluff]

well, unless you stream the world in later

or generate yea

though might as well do any loading you can async during the main menu

[little coral]

So what you are saying i should do this in the main level blue print or what ?

[faint pasture]

Do what you want

but making a gamemode and level for the main menu isn't bad

[undone bluff]

not that you should, it has advantages and disadvantages

[craggy flicker]

okay so what do you think of this

[undone bluff]

it's certainly much nicer to work with a separate level

[little coral]

we need an ai assistant in unreal engine pronto lol

[undone bluff]

and for some games it's the best way to go objectively

wth is that gonna do

[craggy flicker]

GitHub Copilot for C++ works pretty well

in visual studio

[queen dagger]

OMG I FIGURED IT OUT

i had in certain blueprint get playter pawn when it should have been get owning actor

[bitter star]

This worked!

[wise ravine]

Hey, aren't Structures technically a form of communication between blueprint classes?

[undone bluff]

they're just composite data, a group of variables

[raw pilot]

I don't get the issue, why is this not possible??

both of my variables are of the exact same pin type???

[versed sun]

is Stages an array of FQuestDetails?

[raw pilot]

yes it is

[versed sun]

or fStage Details

!= FQuest Details

[raw pilot]

its an array if of FQuestDetails

huh

hold on

i get this tryna change it to Fquest

[wise ravine]

In a blueprint, if you change the value of a variable for an implemented structure, does that change the value for the variable in the blueprint structure asset and across all blueprints that implement the structure?

[raw pilot]

LogBlueprint: Warning: Recursion: Recursion: Struct cannot have itself or a nested struct member referencing itself as a member variable. Struct 'UserDefinedStruct /Game/Quest_System/FQuestDetails.FQuestDetails', recursive parent 'UserDefinedStruct /Game/Quest_System/FQuestDetails.FQuestDetails'

[undone bluff]

if you set a default value and those blueprints are on the default then yes

[wise ravine]

So in a way, a blueprint can indirectly communicate with another blueprint class through a structure and its variables?

[undone bluff]

no

[wise ravine]

Where am I wrong?

[undone bluff]

it's no different from a variable

it's just a collection of them

[lusty hedge]

Does anyone know why a print string wouldn't print????

none of them are printing. but all of the other nodes after work

[wise ravine]

Well for example, If i had a character blueprint that held it's health in a structure, and I wanted a separate blueprint class to access the characters health... I could implement the structure in the separate blueprint class and access the variable that way correct?

[north rain]

I have this variable that is marked as public and all the settings for it are shown in the picture. The object that this variable is in needs to inherit from the Pawn class so it can have AI capabilities and this variable needs to be exposed in the main editor window when the object is dragged into the scene. The problem is that when the object inherits from the Pawn class, the variable isn't visible in the main window, but when I change it so that the object inherits from the Actor class, it is visible there. I've tried looking this problem up, but I can't find anything mentioning why this happens, let alone how to fix it. Thanks!

[undone bluff]

no

[wise ravine]

why not?

[raw pilot]

ohhh thank you i got it, took me a while to realize

jesus

[lunar sleet]

I don’t understand. You’re showing us a vector array and saying you want it to “inherit from pawn”.

[undone bluff]

because you're changing a variable in the character, not in the separate blueprint

[north rain]

Sorry, the class that contains this variable inherits from pawn.

[lunar sleet]

Oh, mb misread

[north rain]

no worries

[lunar sleet]

So you can’t expose it if it’s in Pawn ?

But your expose on spawn is not checked in the screenshot

[wise ravine]

so If I change the variable in the character, it won't change in the structure?

[undone bluff]

I mean if you change the variable you change it

the instance in the memory

[north rain]

Expose on spawn is just for when you are using the "Spawn Actor from Class" node, right? With the same settings shown in the screenshot, the variable appears when when the class inherits from Actor, but not when it Inherits from Pawn.

[undone bluff]

the structure you define in code (or blueprint binary) sits on your hard drive

[wise ravine]

so why can't I access that in a seperate blueprint?

[undone bluff]

it's literally part of your games code

[lunar sleet]

Where do you need it to appear exactly, maybe I’m misunderstanding

[wise ravine]

so I can or cannot?

[lunar sleet]

And did you make sure to recompile

[undone bluff]

well yea, you could change the data and then recompile your game

but that is completely unrelated to communication

[wise ravine]

this is just confusing me more 💀

[north rain]

This is what it looks like when it inherits from Actor and is what I want, but when I change it to pawn, it just dissappears.

Now its suddenly gone when I change it to Pawn

[undone bluff]

the structure you define and its default values are literally part of the program itself, they're not part of the game instance that runs in memory

[wise ravine]

I see, so you can't change that default value during runtime?

[undone bluff]

nope

[bronze mirage]

dumb question- i'm using the third person template, how do I make the camera not move downward when I use the built in Crouch node?

[undone bluff]

let me explain it this way

[wise ravine]

Ohh that makes sense. See I thought from this that you could

[undone bluff]

the struct in your content browser is like your player character bp

when you add the struct to your character it's kinda like dragging that character onto the level or adding it to your game mode

now when the game actually starts these are all just templates to create instances of

[wise ravine]

I see

[undone bluff]

i.e. a version of the character and the struct that exist in the memory (RAM)

these are what actually can be used at runtime

[wise ravine]

This make's sense now

[undone bluff]

every single instance is entiely its own object

so if you add the same struct to two BPs that just means you have two instances that inherit from it

[wise ravine]

Before I thought that you could directly change the value's of the variables inside of a structure during runtime. So I thought you could communicate indirectly between blueprints by accesing the variables held in a structure and setting and getting them

So like an alternative to directly communicating to a blueprint to get it's variable

but I see now, why that is not possible

[undone bluff]

the closest thing to that is how saving and loading works

[wise ravine]

saving and loading?

[undone bluff]

writing to and reading from an actual file on the regular system storage that will not disappear when the program is closed

[main lake]

Why my characters are floating from the point of view of the other player ?

[wise ravine]

Alright I think this helped

I Appreciate your explanation and help 🙏

thanks

[undone bluff]

if you want regular variables you can access anywhere that's what subsystems are for but require C++ to setup

[trim matrix]

isn't that just a global variable?

[undone bluff]

well, it's an object you can store data and define logic in with a clearly defined scope

A game instance subsystem is pretty much completely global as the game instance is practically the game itself

the enhanced input for example is a local player subsystem

[bronze mirage]

anybody got any thoughts on this? i figured it would be a setting in the character controller but I'm not seeing anything..

i'm guessing this is for first person games, you'd want the camera to 'duck' with the player, but I'm making a third person game and it's just jarring. starting to wonder if I'll just need to roll my own crouch functionality

[undone bluff]

the half height of the capsule collision gets smaller when the player crouches

consequently the capsule moves down so it touches the ground

the camera inherits its location so it follows

probably just attach it to the mesh instead

[lunar sleet]

This was meant for a diff person lol #blueprint message

[lunar sleet]

You recompiled and saved the bp and placed it again, I imagine?

[north rain]

yah

[river comet]

I want to have player's perspective. It looks like you are controlling the drone by remote control in the game. The drone is moved by EnhancedInput in PlayerController, the Player too. WASD to move Player and Up, Right, Down, Left to move Drone.

[undone bluff]

I was not replying to you haha, just unfortunate timing

and us both happening to mention recompiling

[lunar sleet]

Odd, I’ll test in a sec

[magic horizon]

ive created a lock on system that interpolates the camera to always face an enemy actor however ive taken a liking to the dmc camera system where it more or less just makes sure that both objects are in frame

is there something that I can do to check on both actors and sort of equalize where the camera is viewing based on that

[lunar sleet]

prly some math

distance to actor and dot products? 🤷‍♂️

[magic horizon]

yeah but its not necessarily taking a mid point between the two

[lunar sleet]

I tested by making a test pawn with a test vector array and making that array instance editable. placed it in level and it shows

reparented to actor and back and still there

maybe you have some sort of bp corruption, you could try remaking the bp @north rain

[north rain]

@lunar sleet I'll give it a try, thank you for testing it out.

I wouldn't be surprised if it got messed up since I originally made it as an Actor, and then reparented to Pawn and that mightve messed some stuff up

[icy plover]

I changed the ThirdPersonController so that the left and right keys would rotate the character in place. Just like tank controls. This was the only part I changed. How can I increase the rotation speed?

[frosty heron]

Interpolate to target rotation instead

Keyboard a increment the target by x factor
Keyboard d decrement the target by x factor

X is your speed

Interpolate from current rotation to target rotation

[faint pasture]

What you have right now is framerate dependent btw

you want value x speed x deltaseconds

and you're better off using add controller rotation instead of get and set unless you have some specific reason to do that

add controller yaw and add controller pitch

[north rain]

yah, that worked. Weird thing is that when I was making this new BP, I put the variable and I put it in a category called "Navigation" and it isn't visible, but then when I change it to a different category it does appear. When I try changing the category on the original BP, it still doesn't appear.

[lunar sleet]

Yeah odd

[north rain]

I guess maybe that Category name is just reserved even though it doesn't appear in the list?

[icy plover]

So like this? I'm not sure how to put the rotator return value into the Add Roll Input

[faint pasture]

no

just multiply value, speed, and delta seconds, and feed it into Val

it's asking how much roll you wanna add

https://www.youtube.com/watch?v=DtONWE59B6Q

assuming you're in a pawn, you can add the values to YOUR controller's rotation, not just the first player controllers rotation

[bitter star]

How can I go out of an array (GetAllActorsFromClass) into a scene component object reference target? Basically telling the BP to select all actors of class and doing the same action for every single one of them?

the for each loop applies to all objects in the BP and I cant figure out how to select only one SM in the blueprint

[gentle urchin]

The foreachloop runs throigh all the actors.

Then you can "getCompomemtOfClass"

Or GetCompomemtWithTag

[faint pasture]

Which scene component?

An actor might have 100

[haughty iron]

Use an interface. If the object implements the interface it’ll fire off the event / do the action if it does not use it then nothing will happen or break. You could also do this with an event dispatcher, have all blueprints that need to perform the action bind to the event on their being play

[faint pasture]

What is the actual mechanic you are trying to implement?

[haughty iron]

But getting all actors of class is expensive, could cast to a manager (game mode, instance ext and set an array on there, when the being play fires you get a reference to it and add itself to the array, when you need to trigger the action you loop through said array as all the needed assets should be inside it

[bitter star]

I have a NS that I want to fire on custom event. Couldnt figure out how to activate/deactivate with a flip flop so I used the toggle visibility.

[haughty iron]

https://youtu.be/EM_HYqQdToE?si=yWgu4bRCNLoftJPE for reference, there is sections in here about interfaces and event dispatchers that might cover what your looking for

[bitter star]

This works. Not ideal but it works

[bitter star]

Thank you for the link, I m going to watch it. Im pretty new to BPs so I have a lot to learn

[thick bramble]

Out of curiosity. What is preventing Epic from exposing more features into blueprint? Why isn't every built in function marked as BlueprintCallable(not counting functions that use non blueprint supported things, like e.g. pointers to structs)

[faint pasture]

What's the ACTUAL thing?

When XXX in the game happens, you want XXXXX to happen.

[bitter star]

I have a BP that receives OSC messages. I have a BP with a SM and a NS as a child of the SM. I added 2 of the NS BP in my scene. I want my particle systems to be de-activated at runtime. Then, when I send the value 0 through OSC, I want the particle systems of both NS BPs to activate then de-activate again when OSC stops sending the value 0.

[thick bramble]

I think you responded to the wrong person xD

[bitter star]

My bad, that was for @faint pasture 🙂

[icy plover]

So I simplified it to this. If I divide TurnSpeed then it works. If I multiply TurnSpeed then it doesn't work. Regardless if I multiple or divide TurnSpeed, if I then multiply by deltaseconds then it doesn't work. How would I make this not framerate dependent?

[gentle urchin]

Much of it could with ease be made BlueprintCallable. Even in cpp, alot of times there's missing virtual on functions that would clearly be handynto overridenin a child class 😅

Nothing is really stopping them

Time constraints and whatnot i guess

[bleak crystal]

sorry if im just barging in here!

got an issue to do with line trace, though -- been driving me a little bit insane. not an unreal expert so i figure maybe theres just some small piece of info im missing.

i have an actor with a static mesh that i want to be hit by a line trace. it is Not doing that.

• first image is my current line trace blueprint (disconnected everything that comes after, all im looking to see right now is if it'll turn green when it hits my mesh. previous node is just event tick)
• second is my mesh component's collision settings
• third is the line trace going through my actor
• fourth is a random unreal cube with default settings going through the line trace, proof that it at least works and is more to do with my actor.

ive tried just throwing the mesh itself into the scene on its own, but that doesnt do anything either. it's custom (not particularly amazing, meant to sort of be a placeholder atm) so if that can cause any issues, i suppose that might be what's happening. it's also a child actor of the blueprint that creates the line trace, but when i press play another child that only exists for a few seconds is clearly detected as well, so im not sure that's the issue.

if anyone can help i will cry tears of joy 🙏

[frosty heron]

Ask the cool kids, you know where they are 🤣

[main lake]

Why does this raycast always goes forward instead of the direction of the camera where I'm looking at ? 🤔

[frosty heron]

Why do u need the rotation at all?

If u want it to point where the camera look at just get its forward vector

[main lake]

that's what I had before and didn't work, then I tried with "Rotation" but doesn't work either

[frosty heron]

If it's always the player camera u can use the camera managee

Get player camera

I don't know what object current camera is

[main lake]

It contains the current active camera as I have a system where you can switch between FPS and TPS

[frosty heron]

That's just setting the camera in the server machine

Sure u replicate it

[frosty heron]

But depend on how u access it, u may or may not get the data correctly

Sry not gonna check it

I think camera should be handled locally anyway

F me dead if I have to wait a second to toggle my camera

[main lake]

the reason I did that on the server is because I need the camera to do the raycast, and I can't trust the client to give me the info of where the raycast should start

[frosty heron]

U shouldn't worry about cheating when using blueprint only. Focus on with the limited power on what you can do

[bleak crystal]

mesh had no collider 🥲

[frosty heron]

U don't even have server validation in blueprint

[main lake]

huh ?

what do you mean by "server validation" ?

[frosty heron]

Research it

But it's cpp only

[main lake]

i highly doubt that

[frosty heron]

@bleak crystal u have more chance getting answer with 1 question at a time. Write it as descriptive as possible but keep it short.

Provide relevant material to that question alone

[frosty heron]

I'm not assuming btw

If I am I will make it clear

[bleak crystal]

was only one question, just wanted to get all the info out there. etiquette varies from place to place, i suppose. been told before im not descriptive enough lol

[lunar sleet]

you need to write code that pats the server on the back and says good job

only doable in cpp tho

[main lake]

Could you explain a bit more please because I'm kinda confused

[frosty heron]

There's a process one can do with rpc in cpp to drop rpc when it's not valid

[lunar sleet]

that was a joke sry. #multiplayer prly has pins and folk that can answer this stuff, but afaik basically it makes sure that all the data that comes through is correct

[frosty heron]

Takes a few min to search it

[main lake]

https://tenor.com/view/im-more-confused-now-than-ive-ever-been-more-confused-i-dont-get-it-im-not-getting-it-i-dont-understand-gif-15038083

[frosty heron]

Start reading then

[main lake]

reading what and where ?

[frosty heron]

Which you haven't done so ofc u won't knkw

I tend to ask my friend google

[lunar sleet]

try adding a collision box to your actor and see if that does it

and also maybe restart engine just for sanity's sake @bleak crystal

[main lake]

alright, but coming back to my first question about the raycast, do you have any idea of why it happens ? @lunar sleet you too please ? 🙂

[frosty heron]

The scope shifted when it is a multiplayer game

[lunar sleet]

@bleak crystal did you say this object is a child of the actor that fires the line trace code? I'm confused

[frosty heron]

For all we know, u could be getting the wrong cam at the time

In client machine

[lunar sleet]

why are you plugging in the rotation into the forward vector?

[main lake]

#blueprint message

[lunar sleet]

your start should be camera location, your end should be cam fwd vector * desired distance + cam location

[main lake]

world location or relative location ?

[lunar sleet]

world

relative means relative to attach parent, so pointless here

[main lake]

that's what I already have

[lunar sleet]

k, so what's happening exactly?

[main lake]

The raycast always point forward of the capsule / Character Mesh instead of the camera forward. Like for instance when I look up, I expect the raycast to go up but it keeps going forward (parallel to the floor)

[lunar sleet]

how often are you firing the trace

[gentle urchin]

Damn colliders hiding away

[lunar sleet]

oops, didn't notice you fixed your issue, sry for the spam todo 😅

[main lake]

each time I press Left Click

[lunar sleet]

sec testing

[main lake]

example

[lunar sleet]

works fine on my end, even works with Camera as channel

I put this in the FPS template

[paper crypt]

Hey! my project is so far coming along, my current attempt that im having an issue with is i want to create a function in my button to change the players POV to a camera pov. like a cutscene or like a telescope/binoculars zoom in games where you see through it and can hit ESC to go back to normal. Any ideas?

[main lake]

It works with the TPS Camera

but not the FPS Camera somehow

[lunar sleet]

why are you doing a validated get of the camera?

is this not inside the char ?

[main lake]

yes

[lunar sleet]

so why are you validating the camera component?

if it exists in that bp

[main lake]

🤷‍♂️

[lunar sleet]

prly just change the FOV and add some kind of decal in front of it, or a postprocessing to make it look like a black circle around it? 🤷

[lunar sleet]

lol

your camera component exists in your bp, there's no reason to check if it's valid, you know it's valid, it's there

[main lake]

i did that as a precaution in case "Current Camera" is set to None

[lunar sleet]

oh, is that switching between 2 cameras ?

[main lake]

Yes

[lunar sleet]

ok, well did you check if it passes the valid check?

[gentle urchin]

and if the current camera is updated ..

[main lake]

It does

[main lake]

let me check that

[frosty heron]

Doesn't matter if it get the wrong cam at the time of accessing it

Imagine doing something like server rpc change cam value , then set the cam right away

Not gonna work especially with a slight ping

[gentle urchin]

No clue what this setup is about x)

havn't really paid attention, trying to actually get work done

[frosty heron]

If u wonder why because it takes x amount of time for variable to be updated from server to client

X being round trip time

Something you should look at if doing mp

[main lake]

The Client and the Server both have the same value in both cases

wait a minute

the one above was when it was pressed by the host

however when trying from the client it's inverted

[crude knot]

I'm trying to set the image of the objects after clearing the children, its not working. Sorry if it's a dumb thing

[gentle urchin]

doesnt seem like it

[main lake]

? 🤔

[gentle urchin]

You should encapsulate the logic for changing the brush

at the very least create a public function that takes in the new brush / image

then handle the updating inside the widget itself

Usually It's just neater to send all the data to the child widget

The entire S_Items

Like this

then on the sub widgets construct you can directly use this data

[crude knot]

Thanks, I'll try to make the changes

[gentle urchin]

Always try to encapsulate the logic of updating things to be within the thing that owns the variable

Keeps it easy to maintain, and bug fixing is just single sourced : )

Along with expanding functionality (Oh, now i want to do X when Y happens) is so much easier

[crude knot]

Thanks for the advice!

[frosty heron]

Nope, read it carefully

[lunar sleet]

Diff instances

So ColdSummer was right from the get go.

[frosty heron]

One is fps cam the other tps cam

Ye it's mp issue

Not the raycast

I mean I don't know math

But not sure why rotation introduced

[lunar sleet]

And this is why we don’t do multiplayer first kids 😀

[frosty heron]

Join the club later? we can struggle together

[main lake]

on the server it's the same value which make sense as the host is the server so both value will be the same but yeah that's on the client where it's messed up

[frosty heron]

Same value with what?

By same I thought u sync them

[main lake]

I don't do multiplayer "first" as I did a solo game first

[frosty heron]

Need more solo game, sorry

[main lake]

how many ?

[gentle urchin]

13

[main lake]

why that number ?

[gentle urchin]

why less?

[frosty heron]

For reference I also don't know if I'm ready for mp

Anyway before diving to mp

U need to make a functional sp with heavy OOP

Not knowing oop = just work on it in singleplayer first

And keep going until you are comfortable

[lunar sleet]

Basically multiplayer is like learning a whole new engine almost

[gentle urchin]

atleast a few concepts , over again

and in bp only you're fairly limited to how you do things properly

[lunar sleet]

The laws of physics go from regular to relative essentially

[gentle urchin]

ends up with a bunch of "delays" and whatnot

[main lake]

But I don't have an issue with oop but rather the networking part is the issue

[frosty heron]

I believed u have issue with both

[main lake]

no

[frosty heron]

And I'm not the only one with the opinion

Well I don't want to attack u

But my suggestion stay the same

[main lake]

the only issue I had was I didn't know how to call the parent of a child bp, I was searching through the search bar but the solution was to right click on the node and click on "Call Parent"

[lunar sleet]

Ultimately do what you want but I’d at least try to live in #multiplayer if you’re going this route, read all the pins and such

[frosty heron]

That's just one tiny little thing

[gentle urchin]

good understanding of OOP is relatively essential

[main lake]

But I do 😄

[gentle urchin]

Not that one can't get out and about without it, but life is far easier with it

[frosty heron]

How many years have u used unreal?

[main lake]

3 to 4 years but not regularly

[gentle urchin]

You can always learn more ™️

[frosty heron]

I'm gonna go b to work

Gl on your game

[gentle urchin]

My progress just stalled...

[frosty heron]

Learn cpp if u r young

So u don't end up like me

Working as delivery driver

Get a job in game dev, up skill

[main lake]

I'm a quarter of century old, so I'm old

[gentle urchin]

thats young

[frosty heron]

Fuck no

I'm 32

[gentle urchin]

both relatively and absolutely

I'm 33 😦

[frosty heron]

U r at the right age to start

[gentle urchin]

I wish i started 15 years ago

[lunar sleet]

People still hire you at 25 😀

[gentle urchin]

with cpp

[lunar sleet]

Imagine…

[frosty heron]

Drop Ur game and learn cpp , if I can time travel, I would slap my old self and learn it earlier

[main lake]

When did you start ?

[frosty heron]

It's essential for multiplayer too

[gentle urchin]

2-3 years ago

[main lake]

And you're better than me, so the age doesn't matter

[gentle urchin]

I've been with the engine for 8 years

[main lake]

oh then that's why 😄

[lunar sleet]

Prly cause he listened to advice 🙃

[gentle urchin]

It's one factor

[main lake]

Already tried but Unreal cpp gets me crazy

[gentle urchin]

time spent in engine > years since start

[main lake]

and the fact that we don't have a free extension by Epic Games for visual studio cpp themselves gets me crazy

[gentle urchin]

I'm glad there's no clock on hours in engine

[lunar sleet]

(Time spent in engine + money) * fwd vector - age

[gentle urchin]

xD

brainpower

[main lake]

x)

[gentle urchin]

also needs to be in there

[lunar sleet]

And attention span tbh

[gentle urchin]

that too

[lunar sleet]

The age kinda covers that tho tbh

[gentle urchin]

I could've gone far more serious into cpp tho, I'll admit

I havn't done my due diligence

Since i had some prior programming experience with totally unrelated stuff, I just ... went ahead

[lunar sleet]

I know a little, but I’m procrastinating adding it to my current project, so far I tell myself I don’t need it, but I will eventually have to

[sonic oak]

I'm trying to make it so that when clicking on a part of a static mesh, it will change the material. Since the static mesh is made up of multiple parts with their own materials, I need to check specifically which face was hit. However, it always seems to return 0 for the face index regardless of which part of the static mesh I click. I've got 'advanced collision' enabled and in the static mesh and all of the subgroups under the LOD have collision enabled.

Any ideas?

[main lake]

So how am I supposed to sync those variables if it's not done already dony by the OnRep 🤔

[gentle urchin]

Over time I've forced myself to use it fairly often, which has made me somewhat comfortable atleast

[lunar sleet]

Nice

[gentle urchin]

My current project is made 80% in cpp

with multiplayer, my least favorite part of unreal xD

and the thing i lack the most experience in

[lunar sleet]

What’d you use to learn UE cpp?

Or cpp in general

[gentle urchin]

Experimenting alot, reading some source code here and there

So if i were quized i'd probably lack some fundamentals 😄

[lunar sleet]

But the basics? Tom Looman and such? I did CS50 so I learned some C and Python, but tbh I only started understanding OOP properly by using UE

[gentle urchin]

I never completed the CS50

I'm like 2 weeks in and its .. meh

Im an automation engineer , so got some experience with ST

[lunar sleet]

And I kinda can read cpp cause I know what it looks like in bp lol

[lunar sleet]

Ah sweet

[gentle urchin]

I've considered picking up a book or two about cpp, but can't really find the time to do any serious reading about it

Any sparetime i got is spent on the project 😛

[lunar sleet]

I have a hard time reading now, after having my brain trained to ingest video content instead lol

[gentle urchin]

Haha that too.

attention span has gotten narrower

damn short format video content

[lunar sleet]

Indeed 😞

[faint pasture]

That's framerate dependent, you need delta time

[lunar sleet]

I am able to stay engaged in 2h videos (about coding/UE) but yeah that’s kinda max, else I have to break it down into chunks

[gentle urchin]

damn

I cant stand those long ones xD

[main lake]

Why is "Client 0" printing twice ? 🤔

[gentle urchin]

So you can watch unreal livestreams aswell then i guess

I find them painfully long

[lunar sleet]

Yeah, I love those, at least the ones where there’s an actual lesson and not talking about random stuff or the lecturer not knowing wtf he’s doing

Wrong reply but you get it

[lunar sleet]

If strongly recommend #multiplayer for such problems

[gentle urchin]

Feels like the latter is often the case, or they get hung up on some insignificant incredibly specific detail that nobody asked about

Ah well, they try

some is good

I complain louder than I'm meaning to lol Easy to critique them when I got nothing at stake or to show for x)

[faint forge]

I have several number of hard references to other BPs, for example in the PlayerController I have hard reference to a specific PlayerState. But for example now I wanted to try another duplicated modified version of that PlayerState and I should have to replace of the references, in PlayerController and other BPs.

To avoid now and in the future to make several amount of changes that slow down development I wonder if I have add my PlayerState reference in... the blueprint function library?

I should avoided from the beginnign this hard ref way but I learned unreal through the process

[gentle urchin]

Is it an option to create a Base playerstate that you run off from?

you still need to fix all the ref issues as they will be new refs

so all old pins will break

if you however have a base one you use, you can just extend and override what you need

other options is the good ol' interface or a component on the Playerstate.

[faint forge]

for sure now I have to relink a lot, but I am hoping to find a way that allow me to fast debugging in the future, changing to different PlayerState, Controllers etc

[gentle urchin]

Components can be added to anyone

so I'd suggest considering that

then they can hold states etc by themself aswell 🙂 Interfaces cant

and require explicit implementation per implementing class

[faint forge]

I cant find a youtube video that I think it wqas adding the cast in a BP function library

[gentle urchin]

Go the component route instead if you can 🙂

[faint forge]

what key word I use for finding a tutorial on this, just "component" ?

[gentle urchin]

Pattym has an example use of component with his Actor Registrarion comp

#blueprint message

this is part 2, i'd perhaps suggest start at part 1

Actor Components are basically reusable script modules that you can attach to any Actor class

[faint forge]

any class, so if I create a component with my casting to a specific PlayerState
I should be able to use this component in my BPCharacter, PlayerController, GameState, etc right?

[gentle urchin]

(you wouldnt cast to your specific playerstate)

[faint forge]

and then if I need to test anothe different PlayerState, I just either change the component or create a new one

[gentle urchin]

you'd want to stay as independent as you could 🙂

Any Other actor that needed access to this would simply do

SomePlayerStasteRef -> GetComponentByClass(MyComponentClass) -> DoThing()

[faint forge]

I am not sure if I understood correctly.
This part
SomePlayerstasteRef -> GetComponentByClass(MyComponentClass)

[gentle urchin]

If its a single player game you can mostly just use the static "GetPlayerState()"

[faint forge]

in my Bp Character right now I am casting to PS_Fight lets say
and I want now to test PS_FIght2
problem is that this little change is fine but I have several references to PS_Fight in different BPs, from GameState to PlayerControllers
I want a way to change the reference to PS_Fight to Ps_Fight2 in the fewer steps possible
and this PS_Fight (and its slightly changed duplicated PS_Fight2) has specific variables than I am accessing, thats why I was casting as Cast to allows me that

[gentle urchin]

And I'm saying, if you extract your logic from PS_Fight and move it into a AC_Fight , then this can be put on any PlayerState and it will simply work

[faint forge]

ah

[gentle urchin]

Assuming the Component can hold all the necessary info ofcourse. which it probably can

[gentle urchin]

you'd still need to fix your references once , and refactor the code to live inside a Component,,

but aside from that all future changes to PlayerState classes will be effortless

[faint forge]

I get it now, to move all the code from PS_Fight to the component, and then everytime I am "Casting to PS_Fight" just to say "Get PlayerState" then "GetComponent that I created" and from there I can get all the variables (and logic that I moved inside there)

[gentle urchin]

Correct

100%

[faint forge]

is there any limitation in performance or multiplayer implementation (I am planning in some moment) that I should have in mind?

• to use a Component
  to move all the code from PS_Fight to the component, and then everytime I am "Casting to PS_Fight" just to say "Get PlayerState" then "GetComponent that I created" and from there I can get all the variables (and logic that I moved inside there)
  if I need to test anothe different PlayerState, I just either change the component or create a new one

• or a Blueprint Function Library
  where I Cast to PS_Fight
  and in case I need to test another PlayerState, I just change it there

[gentle urchin]

Nothing to think about at all

the latter requires you to still fix all the references

as the old links depends on the old Playerstate

the former does not, as the component remains the same, regardless of which playerstate is used (as long as it inherits from playerstate)

[faint forge]

ok thanks!

I think I cant add an actor component to a GameInstace, right?

I was thinking to do the same with my GameInstance, instead of using Cast to get variables

[surreal peak]

@faint forge GameInstance is actually not an Actor

So you can't add components to it

Also what is your solution to actually get the component if you are trying to avoid casting?

GetComponentByClass and similar stuff is probably more expensive than just casting. And an Interface does in fact cast.
So even if you use a Component you'd probably need to cast. Which is totally fine.

But I haven't read the conversation, so might be redundant info

[faint forge]

I just want a fast way to change my cast to ... diferent PlayerState

maybe I should just use a Blueprint Macro Library?

[surreal peak]

What do you mean by that?

[gentle urchin]

The cast is avoided to decouple the classes

So they dont rely on thatSpecificPlayerState

[surreal peak]

So they want to change the PlayerState in the GameMode and it should still just work?

[gentle urchin]

Its mot the cast per'se but the hard link

Thry want to change to an unrelated playerstate, yes

If their logic resides in the comp, all they gotta do is add the comp to the new PS

[lunar sleet]

https://tenor.com/view/michael-scott-the-office-nope-no-disapprove-gif-5418568

[surreal peak]

That's a strange thing to do.

[faint forge]

I have many references to a specific Player State, called lets say PS_1

but I want to try some changes, so I duplicated and renamed as PS_2

with some changes

[surreal peak]

Oh buddy

[faint forge]

but all my several references along my BPs go to PS_1

[surreal peak]

You don't duplicate classes to begin with

That's what inheritance is for

[gentle urchin]

Changing class? Yes. Component to decouple? I wouldnt say thats so weird ;p

Yeah base class was suggested

[surreal peak]

The class part

[gentle urchin]

Drawback would be if you add Marketplace asset tonit that requires you to use their PlayerState etc..

Then component has an advantage in my book

[surreal peak]

The reason you are struggling is cause you are doing it wrong.

If you want to slightly alter logic of PS1, make PS1_Child and override the functions you want to alter. Or change the variables in it. The casts to PS1 will still work fine then

Duplicating to PS2 is not really a solution. The way the GameMode and Game framework classes are structured makes it somewhat needed that you stick to a PlayerState class in your given GameMode and if at all move down the inheritance chain

You can use the Components, sure

Then use an Interface fwiw to grab the component

Some BPI_PlayerStateComponentGetter that just has a function to get the Component

And implement that in the PS1 and PS2 and return the component thete

[gentle urchin]

Im lazy with that 🤣 just using getCompOfClass

[surreal peak]

Then you can do GetPlayerState and call the interface function on it

I mean sure, you can do that too

Your code :P

[gentle urchin]

What does the interface bring to the table? :p

[surreal peak]

Simple Cast + Get vs searching the whole component list

[faint forge]

hmm
I need to digest all this, but would be possible
just to add the Cast to MacroLibrary
and then replace this macro for the Casts that I made

[surreal peak]

If you do this once to get the component then it's totally fine

Like if you init something and you need to get some movement component of an actor, or a mesh component of it.

But if you need to get the mesh comp in 40 places, I would use an interface

[surreal peak]

Yeah but how does that scale tbh