blueprint

[native terrace]

doesn't work

i tried

returns 0 results

[tight venture]

well... maybe that means that neither of them are actually of type BP_ItemBaseInteractive

[native terrace]

they are

i placed them myself

and i checked out the display name

i think my original blue print is corrupted somehow, I set up the filter to the last possible child class, it works. If i set it to the intermediate class it doesn't, if i set it to actors i get both results

[tight venture]

just hook up the array element to a print string

straight up. it should print out some type info I think

[dense mica]

this is ruining my AI movement, any ideas how can I solve this?

[frail marlin]

Would anyone be willing to help me with some simple vector math?

[native terrace]

ok found the issue

editor crashed, didn't save the settings of my sphereoverlapactors node, so the radius was 0 and it was messing everything up. I was too zoomed in to see

great job epic

[tight venture]

@dense mica you may have better luck asking that in #gameplay-ai, but at the very least you'd need to post your behavior tree, maybe some of the relevant tasks, too

I thought I saw that said 0.0...

[dense mica]

I am just using pure "AI Move To" -- I will post this on #gameplay-ai thanks

[tight venture]

but none of the text was clear so

@frail marlin shoot! what's your math problem

[near crag]

Quick question, what node would I use to input two float values and output a vector?

[native terrace]

make vector node, split pin

actually it's splitted by default

[near crag]

I meant the opposite, merging two floats

[tight venture]

merging?

into what? the same value for each part of the vector?

give an example of your input floats and output vector to clarify maybe

[near crag]

"Get mouse position" gives an x and y value as a float. I need those two values to make a single location.

as a vector

[tight venture]

yeah, you can just use the MakeVector node

[near crag]

Ah, alright, I was thinking of a break node

[tight venture]

or you may be able to right-click on the output pins from the GetMousePosition node and see if you can combine them into a vector right there

Vector2D maybe

[frail marlin]

@tight venture I am calculating a throw direction/force for a character after releasing from holding a climbable object. Im trying to find the most accurate way to add the launch force to the character on release. As it stands, Im getting the primary climbing controllers relative start, and relative end when released from the climbable object. Im doing relative because the controllers world stays the same. I want to calculate from the end to the start and launch the character in that direction.

[native terrace]

vector2D ye

[spring magnet]

keep in mind the GetMousePosition will get you the 2DVector of the screen coordinates of the mouse, top left is 0,0, bottom right is the size of the viewport

which wont translate well to a world vector if thats what you're after

[frail marlin]

I dont know if there is a way to get the character's velocity right before release and keep it going on that path?

[tight venture]

So, Montreseur, like a monkey swinging from a branch?

This a skeletal mesh you're working with? It have a physics asset?

[frail marlin]

Yep, kind of!

Its a character actor

so it has the movement component

ive just added two motion controllers to it

So far it seems that my vector calculations for the launch direction are just off.

[native terrace]

can't you store the velocity and forward vector on each tick and when user release your button, you stop watching for those on tick so you get the last value, when they let go

[frail marlin]

On grab, im setting the "First Controller start" which is its relative loc, then setting its end relative loc on release

and creating a multiplier based on the length

[crystal mural]

Am I being stupid? I made this for the text above my enemy's head but it seems to crash the game.

[frail marlin]

its just not seeming accurate

[tight venture]

Isn't there a way to get the center of mass?

[frail marlin]

can't you store the velocity and forward vector on each tick and when user release your button, you stop watching for those on tick so you get the last value, when they let go :DankThink:
@native terrace I can try this

[near crag]

Here's what I'm trying to do. I want the player to move to the mouse's location, and this works well for the most part, but still has the issue of checking for the cursor's hitpoint of the navmesh instead of the general mouse position. Because the former makes it difficult to move the player in areas where there might be walk-able terrain in front of the player character.

[tight venture]

I'd think you'd want to perform your calculations based on how the point of its center of mass is moving

[frail marlin]

@tight venture Character actors are driven my that capsule, im sure it has a center of mass

so get center of mass a grab, center of mass at release

[tight venture]

But I feel like there is a much easier solution: add a physics asset. I'm not uber-knowledgeable when it comes to using them, but I think that's one of the things they're designed for: doing that kind of calculations for you, given you set them up properly

[frail marlin]

subtracting those, creates the directional vector?

[tight venture]

If you wanted to do it with center of mass... um, if you recorded the location of it OnTick, you could draw a line from the second-to-last COM point before release to the last COM point before release, that would be the direction I would think

or just last COM point before release -> COM point at release

much easier probably

COM = center of mass btw

magnitude would be... ugh. bust out the angular momentum equations lol

based on the mass, the angle of the swing... I guess you could simplify it with a trig function based on the angle of the swing

[near crag]

@spring magnet Is there a better alternative? I tried "Convert mouse location to world location" but that only gave me issues unless I'm using it wrong

[tight venture]

just get one axis of its momentum

but before you go down that rabbithole, montreseur, I would definitely check out if physics assets aren't designed to do this kind of calculation for you. I have a feeling they are

[frail marlin]

Okay, thats extremely helpful I really appreciat that guidance.

[tight venture]

though that may involve a bit of set up to get it moving correctly and not reduce your monkey to a ragdoll

[frail marlin]

So this is a VR pawn, so he doesnt have a "body"

its all based on that capsule

[tight venture]

I guess it wouldn't be so inaccurate to just use F=ma on it. But what would a be? Since gravity is already done for you, all you'd need is the XY-plane force to apply

gravity is handling the Z-axis for you

I know what you could do, @frail marlin

I remember doing this once

it's a static mesh?

that it's using?

oh... okay capsule

fine

[frail marlin]

Yep!

I can track the VR cam in world space for a start and end

[tight venture]

there is an option for "enable physics" in the details panel, right?

[frail marlin]

Yep

[tight venture]

Turn it on right at the point of release, then freefall until you need to grab something, then turn it back off

It worked when I did it

There was a caveat to doing that though lemme see if I can find it. There was one other thing you had to do

[frail marlin]

so gravity works super good

but, just calculating the launch force of the throw

so on grab, im setting the vr cams world loc, on release setting its world loc, taking that start and end, doing a direction calc

[tight venture]

I can't quite find it, but I remember it had something to do with the root component becoming detached

I think you had to reattach the mesh/capsule to the root component immediately after the node that disabled the physics again, to get it back to the way it was

something like that

if you just enabled physics right at the release, then the engine would take care of it all for you

[native terrace]

does anyone know i can force a widget to be a specific size?
the widget is doing its own life based on whichever space it finds the most accomodating but i wan't it to either scale as one or don't, but rn it's a huge mess

[tight venture]

@near crag You can try doing a line trace to the floor (if you have a floor to trace to) from the mouse location

I've used GetHitResultUnderFingerByChannel node before with touch inputs to do just that. Gotta be something similar with the mouse input

@native terrace when you say "specific size", do you mean relative to the whole? Like 15% of the width, etc, or do you mean exact, like 104px?

[atomic salmon]

@frail marlin don’t reason in terms of force but rather in terms of velocity

You want to combine the velocity your pawn has at the moment it throws itself with the one caused by gravity

[frail marlin]

@atomic salmon i am using character movement, so the gravity is handled by that and its variables

it is auto applied right after i release

So I just need to find the character's velocity at release and launch the character in that direction?

[atomic salmon]

In that case yes, that should work

[frail marlin]

is there a specific function i should call? or is get velocity good enough?

[atomic salmon]

Get Velocity on the CMC should return the proper value

[dim loom]

can somebody help me out i made this spline system that keeps the mesh lenght so say 100x100x200 so the mesh dosent resize but for some reason i cant get it to work when i rotate the spline point the mesh just stayes strait and doesent rotate with the spline point

[frail marlin]

@tight venture and @atomic salmon thank you guys both very much

[tight venture]

np sounds like vr_marco had the right answer though lol

[atomic salmon]

Did that before, even though with a pawn

But it’s the same principle

With a pawn you have to implement gravity yourself. And ground detection.

[frail marlin]

If @atomic salmon is who i think he is, he made the tutorial i based my climbing on

😂

[atomic salmon]

Guilty as charged! 😉

[frail marlin]

👀

Youre the man, appreciate the content!

[atomic salmon]

My pleasure. Glad it is helpful to the community. 😊

[native terrace]

@tight venture soryr i hop in and off. i mean like 100% of parent div
but with parent div with a max size

to write like a button in a square that wouldn't go over 60by60px but can be scaled down i guess

[burnt canyon]

Silly question but easiest way to calculate ms passed between two ticks? Think I got my delta time math off

[native terrace]

print current time on tick, you'll get the output in the log, so you can easily substract them by hand

[atomic salmon]

@burnt canyon Delta Time * 1000

Delta Time is in seconds

[burnt canyon]

Oh I'm dummy lmao

[native terrace]

milli seconds you mean?

[burnt canyon]

Also I see there's timespan structure now

[atomic salmon]

Delta Time is by definition the time elapsed between two consecutive ticks

[native terrace]

damnit i hate UI stuff

[tight venture]

@native terrace I think you can use a SizeBox to wrap it in for the max size

But, up until that max size, you want it to try and take up all the room it can?

[native terrace]

uhh let me draw a lidl paint of what i wanna achieve

pretend those buttons are perfectly centerd or whatnot

i want to be able to add them dynamically, this part i already have

the thing is, they are fucked up, because they are a child widget

and that child widget's widget position get all messy

[tight venture]

okay, so... I don't understand, of course they're a child widget of something... what's wrong then?

[native terrace]

nah i mean they aren't primitives from UMG system

they are also a widget with like 3 primitives in them

[tight venture]

okay so they're custom

[native terrace]

ye

[tight venture]

so what are you trying to do that you can't

[native terrace]

basically text, text, and a square looking thing i managed to make

let me relaunch unreal sec

basically i wanna have this widget, in a square shaped form, even when added on the other widget

right now it fucks up and they try to occupy has much space has they can when added to the other widget

i did try putting them in a grid panel but the same thing occured, i guess the grid occupied the whole space the parent widget gave resulting in stuff everywhere

[tight venture]

sec, sry phone call

you are probably looking for wrapping it in a ScaleBox

[native terrace]

so i wrap this in a scale box, and then i add it to a horizontal thingy on the main widget right?

[tight venture]

what is the entire layout supposed to look like

the three buttons?

[native terrace]

nah, dynamic

but probably no more than 4

[tight venture]

all aligned at the bottom, kinda spaced out?

[native terrace]

yup

with the one being "selected" with more graphic features so the user can see but ye

[tight venture]

try this:

make the root/main-window widget a VerticalBox
Put 3 HorizontalBoxes in that as children. Make them each fill both directions, but adjust the value for the fill so that the middle box is like this:

---------------------
|                   |
|                   |
|                   |
|                   |
---------------------
|   MIDDLE BOX      |
---------------------
|                   |
---------------------

where you wanna align all your buttons

then you can just put your button/widget things in there, and since it's a HorizontalBox, you should be able to make them equally spaced

around the center point, by using padding and having the button things be fill vertical, and um... the middle horizontal one

the -|- setting

centered I guess it would be

actually you don't even need the padding

just have the buttons fill vert, horiz center

and then if they're too tall, you can adjust the height of the MIDDLE BOX and squeeze them to fit. Or, if you don't want their size to ever change, then just set the buttons' settings to be center for both vert/horiz. See what that gets you... I may be missing a wrapper or something, but just set it up like that and see how that looks

That make sense?

[native terrace]

uuuh ye i'll look more thoroughly after game

[tight venture]

VerticalBox
  HorizontalBox fill=4
  HorizontalBox fill=1
    MyButton horiz-align=center, vert-align=center
    MyButton horiz-align=center, vert-align=center
    MyButton horiz-align=center, vert-align=center
    ...
  HorizontalBox fill=1

like that pretty much

[native terrace]

alright, i'll have a look 🙂

thanks

[tight venture]

np

I just did a ton of UMG stuff so it's relatively fresh still. But I may be missing something to wrap the MyButton with, not sure

[native terrace]

ok lets try i guess

for now lets see when adding one widget

kinda works

@tight venture thanks mate

padding seems kinda fooked

[trim matrix]

what's the best way to make a WHIP like weapon, something like from Castlevania?

[tight venture]

@native terrace try wrapping all the buttons in a uniformgridpanel

one row, centered horizontally

may be easier to do that than to mess with padding settings

i mean, inside the horizontalbox they're already in, so: horizbox > uniformgridpanel > button button button

or possibly you can try using spacers to fine tune it too

[native terrace]

very donk

[abstract maple]

I got a customer project from the web with portals that I'd like to use in my game.
HOWEVER, the project uses a "pawn" as the player by default. I'd like to use my custom character instead.
When I change the player to my character, the portals do not work.

Where do I even begin to fix this issue? Thanks!

[hearty moss]

check if the portal is somehow tied to the pawn

how does the portal work exactly?

it just looks like whoever made this did a bad job making it modular

[tight schooner]

@abstract maple I'll second the above suggestion. The "portal" probably works with a Scene Capture Component 2D that tracks the pawn location for perspective-correct rendering, so you need to figure out how that system works and make it modular.

[abstract maple]

check if the portal is somehow tied to the pawn
It probably is.
how does the portal work exactly?
Absolutely no idea. I can't follow what's going on in the blueprints.
it just looks like whoever made this did a bad job making it modular
It was free so I can't complain 😦

[tight schooner]

It could be as simple as replacing the references to the included pawn with GetPlayerPawn, but it's hard to say exactly from the outside.

[abstract maple]

Where would I look?
If I had to guess, there is some kind of C++ stuff going on because there's only 3 blueprints and they're pretty empty.

[tight schooner]

Rip

lol

[abstract maple]

How do I even check if it uses C++ or not? Like there are no files

[tight venture]

@abstract maple that's you recording that screen capture?

[abstract maple]

Yes

[tight venture]

super good quality voice recording

[tight schooner]

It'd be in the portal actor

[abstract maple]

super good quality voice recording
Sarcasm? 😂

[tight venture]

seriously brah. fah rayl

you must have the same mic as howard stern

or some shit

[abstract maple]

Here's the portal "pawn"
I don't really see anything "portal" related directly?

[tight venture]

can't read any of that ^

[crimson swan]

if it has a teleport node

then it's a portal i guess? XD

[tight schooner]

@abstract maple I mean the portal itself. Does the portal exist in the scene?

[abstract maple]

Yes, it's the camera thing, one sec

[tight schooner]

Is there a BP for the portal?

[abstract maple]

I don't see anything calling/referencing the "PortalPawn" anywhere
I am so stumped

[tight venture]

maybe the portal was an actor component, a child of the pawn, that he toggled set visibility on, like a third-person camera hehe

followed him around

no, but seriously, your character derives from Pawn?

[crimson swan]

your bp_portal has a camera holder

what's that

your custom one doesn't have that

[abstract maple]

My character is a regular character class thing
The default project character is a "pawn"
Not sure if it's a child or something else, but it's not a character which sucks since I can't use it. I need full functionality of a Character not pawn

[tight venture]

what about a subsystem? could it have been in a subsystem?

[tight schooner]

In the component list is there a Scene Capture Component 2D?

[crimson swan]

it's possible the pawn in question has an extra component in it

[abstract maple]

your bp_portal has a camera holder
What do you mean?

[crimson swan]

i'll screenshot hold on

[abstract maple]

it's possible the pawn in question has an extra component in it
That's what I'm thinking, but I have no idea what it is or where to look

[abstract maple]

PortalBP

[crimson swan]

where did it come from where did it go, where did it come from cotton eyed joe

[tight schooner]

Right click and find references on that capture component. I want to see the script driving it...

[crimson swan]

just curious if that's just an empty mesh or it's got functionality

[abstract maple]

Right click and find references on that capture component. I want to see the script driving it...

[tight venture]

this feels like an easter egg hunt for some reason

[tight schooner]

😫

[abstract maple]

I've been at it for days 😢

[crimson swan]

i'm 99% sure it's the thing from my first picture

[abstract maple]

cameraHolder in the PAWN

Camera under the cameraHolder in the PAWN

[tight schooner]

Ok, are there references to BP_PortalPawn in BP_Portal or vice versa? We need to untangle these two blueprints...

[abstract maple]

That's what I've been trying to find out
I can't find any direct refs from the PortalBP to the Pawn or vice versa

[crimson swan]

does camera holder have any code attached to it?

[abstract maple]

And I know that there are, somewhere
If I place ANY other pawn. new pawn, into the scene, the portal isn't visible

does camera holder have any code attached to it?
How do I check?

[low forge]

please does anyone know how i can get the real date (real life) inside the game?
in fact I just need to get the day and month

[crimson swan]

can you show the pawn's code that came with the sample

if you didn't already

oh i think i know

the add widget to viewport

[tight venture]

@low forge Apparently you can use a BP Node called "Now" to get the current date/time

[crimson swan]

pretty sure the widget is casting to that specific pawn

or to a specific part of that pawn

[tight schooner]

The portal is a widget? 😹

[crimson swan]

yeah

[abstract maple]

Okay let me do this:

[tight schooner]

I'm about ready to suggest you look up a tutorial for making a portal with blueprints cuz that has to exist, lol.

[crimson swan]

99% sure it is , look at the zoomed out pic , the part in red

[abstract maple]

https://github.com/Lewisscrivens/BetterPortals

That's the project I am trying to use

I'm about ready to suggest you look up a tutorial for making a portal with blueprints cuz that has to exist, lol.
@tight schooner It does, and they all don't work nearly as well as this one
This is the ONLY project that has ZERO glitches or artifacts.
I tried about 11 different methods
I spent so much time
This one is the best

[low forge]

@tight venture Thanks man 🙂

[crimson swan]

can you zoom in on this plz

[crimson swan]

yeah.. can you look at that widget's code please

[simple dragon]

hi somebody can't explain me why my component is not registered Actors on overlap

[crimson swan]

that might be your problem

[abstract maple]

yeah.. can you look at that widget's code please
Sorry to ask like an idiot, but how do I look at the "code"?

[crimson swan]

you need to find where that widget is

sorry when i say code i mean blueprint

[abstract maple]

It looks empty

[crimson swan]

@simple dragon you can always put the overlap to overlap all

[tight venture]

In ABetterPortalsGameModeBase, you've got this:

class APortalPawn* pawn;

referenced all over the place

[crimson swan]

can you look at it;s design

[abstract maple]

In visual studio?

referenced all over the place
@tight venture

[tight venture]

he sets up the portal using the forward vector from that and other stuff

[simple dragon]

i know but i have water collision priest set to water on box collider and on actor set to only overlap water

[tight venture]

in the github account you just posted

[abstract maple]

he sets up the portal using the forward vector from that and other stuff
@tight venture Is it going to be a nightmare for me to switch it over to using my character?

[tight venture]

take a look at https://github.com/Lewisscrivens/BetterPortals/blob/master/Source/BetterPortals/BetterPortalsGameModeBase.cpp

UpdatePortals()

if your pawn isn't his special type of pawn, then that pawn pointer will be null, and all that stuff breaks

Just change the type of that pointer to be your character type

and any references to it

i mean... naive approach anyway

see if that does anything

[abstract maple]

Just change the type of that pointer to be your character type
@tight venture Could you provide me with a link or a doc on how I can do that?
I don't even know how to open this C++ code from the project
I never used C++ in UE4 before

[tight venture]

wait, what code are you running?

I thought you forked his repo or something

[abstract maple]

Yeah I downloaded his project and migrated a couple of my assets into it

[tight venture]

Oh. Well, um... you're gonna have to edit the source

or maybe you could just subclass his BetterPortalsGameModeBase and override the functions that use his special pawn type

[crimson swan]

or alternatively copy what he did in c++ to blueprint

[tight venture]

but easiest to edit the source

[abstract maple]

:|
I have no idea where to begin on any of those suggestions
I only know like 7% blueprints and 0.02% C++

[tight venture]

um, well when you created this project, that you pulled his code down into, you created it as a C++ project, or BP only?

or what

[abstract maple]

I just... opened his project
So whatever that was set up as, I don't even know

[tight venture]

oh okay

so ... in the editor, under File > click "Generate Project Files"

or something like that

you'll have to open it up in an IDE, edit some of his source, recompile it, and then open the editor back up again

[abstract maple]

Okay, waiting on it to open.
So when it opens, I close it again, compile the VS code, and open it as usual?

What exactly should I be adding/changing so I don't completely break what I have so far?

[tight venture]

when VS opens, search for the files BetterPortalsGameModeBase.h and BetterPortalsGameModeBase.cpp

[abstract maple]

Okay

[tight venture]

um... for that

https://discordapp.com/channels/187217643009212416/221798862938046464/754161889373585408

need to give me a few minutes to read his code

[abstract maple]

Success

[tight venture]

okay, so it looks like he only activates these portals when the PortalPawn (his pawn type) is at a certain distance away from it and viewing it from a certain angle (looks like straight-on)

the portal code and the pawn code are highly... whatever the opposite of modular is

they're intertwined

[abstract maple]

So, switching his pawn out for my own character with my n00b experience will be next to impossible?

[tight venture]

Your best best may be to convert his PortalPawn class to work as your character class

um... let's see

[abstract maple]

I wish I knew where to begin that LOL

I understand only some of these words

[tight schooner]

@abstract maple you should look up a primer on classes and inheritance as it pertains to UE4

[cosmic lagoon]

hey guys I have a box trigger like this and trying to get "On Component Activated" firing. however it doesn't seem to be happening.

this never fires when my character walks on it....could it be my collision settings on the actor? i'll take a look

[tight venture]

I lost him. @abstract maple you still there?

[cosmic lagoon]

doesn't seem like it....hmmm i wonder why it is not activating

[tight venture]

@cosmic lagoon if you want it to fire when your character walks through it?... then you want OnComponentOverlap

and you'll need to set your collision settings for both your character and the box trigger to specific settings

both will need to have the "Generates Overlap Events" checked

and whatever object channel the box trigger is using (probably either WorldDynamic, possibly WorldStatic) will need to have it set to Overlap for whatever object channel the character is using (probably Pawn), and vice versa

[mild mirage]

how do i change the gravity of a character, like make the jump shorter

(im new to ue4)

[cosmic lagoon]

@tight venture ah I see so I am not using the right events

[tight venture]

I don't think so... Are you trying to get something to happen when your character walks through the box trigger, or when your character just touches it, or what

[mild mirage]

can anyone help?

[cosmic lagoon]

@tight venture when your through the box trigger

@tight venture when I search for on component overlap it won't show up here.

so what I did was just right click on the box trigger, and add event and this was the only one availble....

I see collision is set to Trigger

[mild mirage]

can no one help with such a simple thing?

[tight venture]

hang on dragonbally, sry busy with one thing first

[abstract maple]

@abstract maple you should look up a primer on classes and inheritance as it pertains to UE4
@tight schooner Thanks, do you have any specific recommendations?
I know content quality varies a lot source by source

[mild mirage]

@abstract maple can you help me?

[abstract maple]

How can I help?

how do i change the gravity of a character, like make the jump shorter
@mild mirage Oh, that's 2 things.
Do you want to change the jump or the gravity?

[mild mirage]

wanna make the jump feel more real (shorter)

so probably jump

[abstract maple]

Click the very top first row
And go to the right, type "jump" in the search bar

[mild mirage]

tyy

what do i change about the jump

max count?

[abstract maple]

Let me check

[mild mirage]

i got it

how do i smoothly change a value

e.g fov

doesn't work

[tight schooner]

@abstract maple sorry, I don't have great learning resources recommendations offhand. Matthew Wadstein videos on YouTube are a go-to for every blueprinter and he might have some examples. Epic provides its own learning resources at https://learn.unrealengine.com/

Inheritance (parent classes & child classes) is a fundamental concept so it shouldn't be too hard to get a rundown on it

[mild mirage]

@tight schooner how do i make folders in blueprint manager? idk what they are called but to like group it

[tight schooner]

Blueprint manager? Uhh

Any function or variable should have a category field

[mild mirage]

these

[tight schooner]

Oh

It's called a comment

[mild mirage]

ahh

ty

[tight schooner]

If you select two or more nodes, you can right click and create comment

[mild mirage]

ahh tysm

im new and learning

oh btw

how do i play an animation

e.g when they crouch

[cosmic lagoon]

@tight venture I just went with a Box collision and On Component Overlap.....strange the trigger was not working

[tight venture]

oh sry

is it working?

@cosmic lagoon

[mild mirage]

where is the runspeed thingo?

nvm

[weary jackal]

@mild mirage you want to gradually increase and decrease the speed when your player press sprint and released?

[mild mirage]

i got it

no of the camera fov

all i need to figure out now is how to do a crouch mechanic

and then how could i make it first person

but with a third person model

cause i wanna make it multiplayer

[cosmic lagoon]

@tight venture yes. I wonder why I even bothered with box triggers....not sure I know the difference between that in box collision

is it when the character is inside completely vs touched? in that case I would just scale down the box so character has to walk deeper

okay so i noticed I cannot add a timeline inside a function....hmmm

nor can I add it in macros...

[tight schooner]

"latent" nodes line timelines and delays can't go in a function cuz functions are meant to provide immediate output

Timelines in particular are a component so I guess it makes sense you can't macro them

Your timelines appear in the component list and you can call functions on them

[twilit heath]

you can call an event that starts a timeline from a function though

[mortal cradle]

Is there a node that would let me interpolate from 0-1 based on movement speed value ie. if my movement speed = 600 then interp value = 1, if it's 300 then value = 0.5 etc? I don't want to use a bunch of booleans for this

[twilit heath]

clamp(speed/maxspeed, 0, 1)

you can skip the clamp if you are certain of the ranges your values can take

[tight venture]

@cosmic lagoon sry, been busy with something. Um... box triggers are just a convenient way to, well, trigger a collision. whether by overlap or hit. Really, it's just a box shape with some preset collision settings to allow most things to pass through it like it's invisible but still trigger the overlap.

An overlap occurs between two actors as soon as the slightest little bit of their bounding areas overlap. So, in other words, just touching.

Or, more accurately, that's when OverlapBegin occurs

[cosmic lagoon]

yeah for some reason the box triggers were not firing....so i opted for a box collision and just made it smal

[tight venture]

Neither OverlapBegin nor OverlapEnd will trigger while they're overlapping each other, and then OverlapEnd will trigger as soon as they stop touching

[mortal cradle]

@twilit heath will try now thanks

@twilit heath it does work but the problem is that the faster I run the closer it is to max value where I would like it to be the opposite, the faster I run the closer to 0, how would you reverse it?

[twilit heath]

1 - speed/maxpeed

[chilly jetty]

trying to use a Media Texture to play a video on my main menu screen

but it just ends up coming out as white?

took the media texture and made it into a material so the Image in the Widget could accept it

but it just comes out white

[mortal cradle]

@twilit heath everything works, thank you

[woven kelp]

If I make a Blueprint Function Library, does everything related to it get loaded when I reference one of its functions? e.g. My function library has a function working on object A and a function working on object B. If I call the object A function, does the object B function, and thus the entirety of object B, get loaded into memory?

[flat raft]

@woven kelp I don't think so, but not 100% sure. It is something I need to check on. 😀

If you have Unreal open, I don't, you can check. Make a FBP, and Reference 2 things in 2 different functions.

Call destroy on one of them, maybe A, then call B.

If you get a A pending delete, it means calling B, or loading the function library, requires all references to be valid.

My guess is that it doesn't care until A is actually called.

If you checkout the soft reference vid by Unreal, the dude goes over a few console commands for checking if things are loaded.

[twilit heath]

@woven kelp you don't have to call anything

everything referenced by BP function library gets loaded at game start

[flat raft]

Oh yea?

It seems like it shouldn't

Oh..actually, maybe I'm thinking of soft references

[twilit heath]

BP function libraries typically don't contain those

and yeah, soft references would not be loaded

[flat raft]

So if all is loaded, then I guess it can be left null until you use the function

If you don't want it to load.

Also, Zlo.. where is that dragon from?

[scarlet cairn]

Is it possible to load object libraries from just blueprints? I'm having trouble finding the node for it

this little guy

I'm finding lots of documentation for c++ but not really anything for blueprints

[flat raft]

@woven kelp @twilit heath True story. You don't have to call anything. It's automatically loaded.

[hearty moss]

@mild mirage hate to break it to you but it looks like you're fairly new, and multiplayer is extremely complex and not really very well documented tbh. it's best to start with multiplayer in mind from the beginning rather than part way through, because it will just complicate things and cause a lot of trouble

unless you're doing local multiplayer in which case, carry on

[mild mirage]

I found an easy tutorial

and it works

its with steam

and im using blueprints

[cosmic lagoon]

how do I get the current gravity direction?

imagine a room that rotates....I need to know which direction is down

hmmm nvm i guess I already have a linetrace pointing down for each player so

I do wish answers.unrealengine.com was more active tho....asking on stackoverflow seems to get instantly downvoted

this discord chat remains the fastest way to get help...but also talking through problems is helpful.

[atomic salmon]

@cosmic lagoon gravity direction is always [0,0,-1] unless you use a plugin or other ways to modify it.

[mild mirage]

can someone help me, i want to change the index of a widget switcher from another blueprint

how can i do this

[cosmic lagoon]

@atomic salmon basically the room rotates...and I need to figure out which is left and right again....

im thinking of figuring this out via relative location from the "ground" which may change anytime

[atomic salmon]

Room is rotating around the Z axis?

Or around any axis?

[cosmic lagoon]

yes it is rotating only on the z axis

(which i presume is up)

so when the room rotates 90 degrees, the "right" becomes "left" and so on

and this is where I'm getting tripped up on

[atomic salmon]

you can look at the forward and right vectors of the floor mesh

as the floor mesh rotates, those vectors rotate along with it

[cosmic lagoon]

ah I see

[atomic salmon]

so if you do a GetRightVector from the floor mesh, that will always point to the right of the floor mesh regardless of its rotation

[cosmic lagoon]

thats true

one last thing is after the room rotates 90 degrees, how do I determine which is the floor?

[atomic salmon]

@cosmic lagoon I assumed your room is something like a floor with walls and it rotates around the floor pivot point, so the floor remains the floor. Or not?

Is it more like a box which rotates in any direction?

[cosmic lagoon]

it rotates in one direction

so the box could rotate 90 degrees left or right

and continue in either direction

hmmm I guess I can just get right vector for each wall

but then what bugs me is I don't know which wall is the new "floor"

[mild mirage]

how can i make a loading screen appear when a button is pressed?

i have the loading screen

as a ui widget

[atomic salmon]

@cosmic lagoon you can use the dot product of each wall's UpVector with the world up vector [0,0,1]

Whatever product is closer to 1, that is your floor

[cosmic lagoon]

ahhh

didn't know about world up vector

[atomic salmon]

make sure all the floor and wall meshes have an upvector pointing inside the cube

[cosmic lagoon]

I will give that a shot

[quasi frost]

Is there a way to make something overlap anything else, even 3d objects in the world? I want these 2d squares to show over the grass without moving them up or removing the grass.

[atomic salmon]

@quasi frost looks like a job for decals

[cosmic lagoon]

thats not a dragon....thats a cow! lol

[tawny maple]

I have level, which I'm loading via level streaming. When I'm executing Load Game From Slot in Play in Editor (PIE) mode, I'm getting a virtual copy of this level with naming UEDPIE_0_OriginalLevelName. This copy saves all changes with level and when I close and run PIE again, this copy with all changes loading instead of the original level, which gives me a lot of troubles. How can I prevent creating this virtual copy?
Also if I try to open the original level in the editor when a virtual copy exists in Maps folder, I'm getting editor crash with error: "World Memory Leaks: 1 leaks objects and packages. See The output above." The only way to fix that is either restart the editor or open virtual copy, then the original level. In both cases, level copy will be removed.

[quasi frost]

@cosmic lagoon

[cosmic lagoon]

HAHAHA

it's evolving!

@atomic salmon how do I get the "world up value"? I searched for it thinking it existed

oohh wait i see what you mean

just comparing it to [0,0,1]

[bitter mason]

is there an equivalent to the select element from the mesh editor for a procedural mesh at runtime?

or are those "elements" from the static mesh lost anyway when i do this?

[trim matrix]

@quasi frost custom depth most likely

looks cool like this though

like painted on the grass or somethinig

[vernal ibex]

Hey can someone please help! my project was fine all day and i went and made a new level and for some reason my character wont move only rotate, the camera is stuck inside him seen in this picture and when i jump it shoots me across the map. Changing the game mode override didnt work. any ideas would be great because this is frustrating

[atomic salmon]

@vernal ibex looks like a collision issue to me

anything colliding with your character?

[quasi frost]

Much easier way to fix the grass issue, just put everything on a stage lol

[tribal umbra]

Any one know a clean way to clamp a vector position within a radius?

[atomic salmon]

@tribal umbra you mean vector length? https://docs.unrealengine.com/en-US/BlueprintAPI/Math/Vector/ClampVectorSize/index.html

[tribal umbra]

@atomic salmon Yes to an extent. My issue is that I'm trying to limit an actors position within a radius. When I clamp the vector size it clamps within a cubic space rather than a spherical space, if that makes sense?

[atomic salmon]

@tribal umbra the function I pointed you to clamps on a sphere.

[tribal umbra]

Really? oh great thankyou!

[atomic salmon]

Np

[native terrace]

@vernal ibex did you double check character controller is set tup correctly ?

[restive dagger]

umm what should I put in object?

[vernal flax]

guyzzz

1 fast easy question, here it goes:

how can I package with my game additional .txt file?

So i can later on read from it.

It can be saved in ProjectDirectory, as it's already working for me. I'm thinking mostly about Android case, where i'm ending up with just .apk and dont want to go to device files to add my .txt database by hand.

[bitter mason]

@restive dagger well the object you wnat to cast? 😄

[vernal flax]

@restive dagger - definitely a reference to that ColorPickup BP. You can probably also reference to a child of that ColorPickup i think. Easiest way to do it is Get Object Of Class node.

(can anyone confirm if im right with referencing a child of that ColorPickup?)

[bitter mason]

never done it, but should work since a child b of a is an a right?

[vernal flax]

Yea, thats what i thought but never actually used it.

[restive dagger]

idk

guys idk what you talkin bouut

[bitter mason]

@restive dagger you use a cast when you expect a certain type of object from some input and want to tell unreal engine to expect that type of object

[restive dagger]

I tried to get a reference to everything but it doesn't work

[vernal flax]

Get Object Of Class if that object is on the map and you want to do something with that.

[restive dagger]

I want to cast to set the actor location

[bitter mason]

you always cast from something to something

so whats your from something?

[restive dagger]

I tried to get owner

and it didn't give me any error

@bitter mason player character

[bitter mason]

thats the point of a cast you can put almost anything in and the cast may succed or fail but you wont get an error

maybe you should read up casts, to really understand whats going on

https://docs.unrealengine.com/en-US/Engine/Blueprints/UserGuide/CastNodes/index.html

its one of the few things that get actually explained in the docs

[restive dagger]

my problem is not with casts rn

Lemme explain what I'm trying to do

Here's the system I made:

you have an actor blueprint called "Magnet" when you overlap with magnet it casts to third person character and sets magnet on "variable" to true

and you have a coin pickup blueprint

On event tick

It casts to third person char and checks if the magnet variable is on

If the variable is on (true) it sets actor location to the character

My problem is nothing of that logic actually happens when im in game

coin actor code

[vernal flax]

sooo you need to put into that cast for example GetPlayerController

[restive dagger]

magnet code

[vernal flax]

Or GetPlayerPawn

[restive dagger]

yeees

❤️

[vernal flax]

Magnet should work i think

[restive dagger]

yep

Now I want it to sweep to me

not just teleport

how to do that?

[vernal flax]

Get actual position of that coin and get player position and lerp between the two. You can do it by each tick, but it's not optimal. You can also use Timeline to do just that, which is a prefered method i think.

remember to double click on that timeline and set how fast and how long etc you want it to happen. Timelines are awesome, such as Timers.

[restive dagger]

umm I don't know how to make logic inside of a timeline

I thought the only use of it was to change colors and positions

manually

:3

[vernal flax]

Nope, everything that happens over time.

[restive dagger]

so am I just gonna put a timeline in there

and attach the execute pins and that's all?

[vernal flax]

You do Update output each frame. So each frame you take actual position and player position and lerp between that two.

Lerp value you will set when clickin twice on that timeline

[restive dagger]

How am I gonna set the value if its a variable ;-;

oh

[vernal flax]

after that lerp you do SetActorWorldLocation or something like that, and it's connected to Update.

[restive dagger]

I never worked on floats using timeline

can you explain what am I supposed to do inside the timeline

I know I sound stupid but that's the first time for me 😐

[vernal flax]

i did everything i could bro, you have everything on screens

just doubleclick on timeline and then click that float icon i hovered as above

and then rightclick on timeline and add 2 points

easy peasy

ok, i g2g work on my stuff.

[glossy remnant]

Does anyone have experience in making modular building mechanics that the player can do at runtime? I am finding myself stuck in figuring out how to approach this. I have a cube shape that has been divided into many individual meshes, I have a feeling I can make instances of each of the panels and that if any of the panels are not within view by the player they can be hidden and save performance. I think if I make this cube shaped room have sockets on all sides I can enable the player to quickly snap another cube to the initial one and keep snapping to make large structures, composed of all the individual panels. So if each of these panels were components of the let's say 'cube blueprint', would those be able to be culled or hidden if they are not being looked at? Is there a (in your opinion) better known way than making each of these panels components of the cube blueprint to save on performance?

Additionally, my intent is for each of these panels to be highlightable and can be changed to other meshes if the player chooses to upgrade them individually

[tight schooner]

@glossy remnant I can't comment on modular building systems but UE4 already has its own visibility & occlusion culling systems: https://docs.unrealengine.com/en-US/Engine/Rendering/VisibilityCulling/index.html

there is also a dynamic instancing system https://docs.unrealengine.com/en-US/Programming/Rendering/MeshDrawingPipeline/#dynamicinstancing

[glossy remnant]

Thanks @dusky obsidian ny I did a Ctrl+F on that page earlier to see if 'component' was even mentioned, no results. This makes me think that components would not be culled. All components (aka: 'panels' in my case) would be loaded in and nothing would be culled if I went the component route

hmm, not sure why I cannot shout your name here, sorry whoever 'Sean' is

[restive dagger]

@vernal flax Thank you so much, it has some bugs but I guess I can fix that https://gyazo.com/9315f04045a6273827f8b37747b32f57

[glossy remnant]

I'm taking a look at that second link, I am hoping I can find a built in or BP solution

[tight schooner]

I don't have a straight answer for whether components get culled, but there are debug views (see bottom of documentation) where you can test it

Regarding the second link the takeaway is UE4 merges draw calls as of 4.22 automatically

You can use instancing as a tool but it's no longer necessary for draw call optimization per se

I suppose it depends what you meant by instancing 😅

I was thinking of Hierarchical Instanced Static Meshes...

[glossy remnant]

Reusing the same static mesh (panel) over and over to hopefully save on memory useage HISM I have been looking at. Can a component of a BP be a HISM?

[tight schooner]

yeah there is a HISM Component

[glossy remnant]

oh snap

[tight schooner]

ppl used to use it for optimization in elaborate ways prior to 4.22

now if you have a bunch of static meshes in the scene using the same shader material, then UE4 will auto-instance them

[glossy remnant]

ah, so if I have some sort of master material or something I could make use of that

[tight schooner]

I think if a bunch of static meshes have different material instances on them, then they won't get batched

You might find more knowledgeable people over in #graphics on these optimization topics

[glossy remnant]

I think I get it, and I think you have given me enough information to find a conclusion. I came here because I want the cube to be BP, and each panel to possibly be BP as well, or at least have multiple things that can be done to/with them. If these panels can be HISM components, and can be culled if not within view then I think this could work

each panel (HISM component) could be an array of different options (window, door, etc)

[tight schooner]

I have a vague recollection that a drawback of using HISMCs is they don't get culled. Or all the instances of a component together get treated like one big object. You might have to do some experimenting with the culling debug view...

[glossy remnant]

if player highlights that panel, while having 'window' selected, changed the mesh and material to show a window in that spot. Maybe I will need collision boxes

oh

well, hopefully I can find an answer out there, surely I am not the first person trying to have them culled

I think I might have enough keywords to find a forum post, I'll go take a gander

thanks for the information @tight schooner

[sonic crescent]

Hi! i'm looking for example for instancing static mesh with blueprint. I need to populate an environnement with rocks. I need that to be by blueprint cause the landscape is generated in game. Any idea?

[stiff totem]

How do you loop over an array of all instances of an actor?

[glossy remnant]

@stiff totem googling that exact sentence shows some promising google results, https://www.google.com/search?sxsrf=ALeKk03azDK7Bnw0PrstCSJhLkS83Xg5gw%3A1599916386422&source=hp&ei=YslcX7r5Fu_P0PEP55CuUA&q=How+do+you+loop+over+an+array+of+all+instances+of+an+acto&oq=How+do+you+loop+over+an+array+of+all+instances+of+an+acto&gs_lcp=CgZwc3ktYWIQAzIHCCEQChCgAVCsBVisBWCiB2gAcAB4AIABigGIAYoBkgEDMC4xmAEAoAECoAEBqgEHZ3dzLXdpeg&sclient=psy-ab&ved=0ahUKEwi6soX_2OPrAhXvJzQIHWeICwoQ4dUDCAg&uact=5

top result for me shows a forum from 2018 https://forums.unrealengine.com/development-discussion/blueprint-visual-scripting/1411928-how-to-iterate-through-a-array-to-get-the-actor-that-is-closes

you might be able to repurpose it

[stiff totem]

Thanks

[glossy remnant]

@sonic crescent I think Brushify might be able to do the instancing of the rocks for you

and I think in one of his videos (Joe Garth I think he is on Youtubes) he talks about how to change what the instances are, and what meshes they use

[sonic crescent]

@glossy remnant I don't have any landscape to use brushify onto. My level is generated randomely with staticmesh when the game is launch.

[trim matrix]

Heyo! I have this problem: https://imgur.com/a/v5n272s
In short i want my item tooltip to disappear when i toggle the inventory. Any ideas?

[bleak vector]

I'm wondering if there's any way to "switch" on tags other than a hundred if statements?

[glossy remnant]

I am not experienced with widgets, but my first assumption would be that you have the inventory and the tooltip as separate widgets? If they were the same widget they would both close when you exit the widget (inventory screen)? @trim matrix

[trim matrix]

Yes they are separate. I have a function to toggle my Inventory Window inside my Inventory Component and a function to toggle the Tooltip inside my Inventory Slot widget on clicking the icon.

Can't figure it out

[glossy remnant]

@sonic crescent sorry, I don't have enough experience to solve that. Hopefully someone else can assist? "Hi! i'm looking for example for instancing static mesh with blueprint. I need to populate an environnement with rocks. I need that to be by blueprint cause the landscape is generated in game. Any idea?"

@trim matrix I think somewhere you will need to specify (in a blueprint) that both of these functions occur at the same time. This might not be the best solution, but maybe when the one function is called (inventory) there is a branch that also executes the tooltip at the same time?

[crystal mural]

Hello! Can someone clarify for me please - Recently I read a comment that construction scripts are only for in level editing. I've been since then moving my construction scripts to event begin play as I go along. NOW with my bullets the event begin play doesn't seem to actually do anything, specifically setting the initial speed. Did I misunderstand? Can I leave things in Construction Script for the main game?? I think I have misunderstood!

[ashen sparrow]

I'm trying to spawn a particle effect on the muzzle of my weapon.. The socket is placed in the right location on the mesh but still the particle effect spawns at the wrong location.

The PE spawns at the grip of the weapon instead of where the socket is placed. What am I doing wrong?

[trim matrix]

@glossy remnant This is my toggle inventory function: https://blueprintue.com/blueprint/mb62r-nv/
I tried adding a remove from parent with a tolltip widget reference to "is valid" but that made errors

[untold anchor]

Wanting to blend from Camera D on a spring arm (character X blueprint with a camera in it) to Camera B OR Camera A on different spring arms (Some other object C blueprint with 2 cameras in it at different positions) while being able to rotate around the spring arm's that they are children of. Character X is a fully playable character, Object C is non playable object but it's location is not static.

[jaunty dome]

I'm trying to work with Maps but it seems the blueprints implementation is "barebones"

for example this is the solution i came up with to solve the following issue
I have a map (name: integer) and I want to add the values from mapX to mapY

looking through the available functions, it seems iterating through map is not possible, so i came up with the solution above, which will probably not work since map values are immutable

how would i go about solving this issue ?

[fallow fox]

Hello guys! Is this the correct way to check if a product has already been purchased? Because as a tester, if I exit the game and try again, I can always buy the same product

[glossy remnant]

@trim matrix I might have bitten off more than I can chew; after reviewing your BP there I have become a bit confused and I think this will go beyond my experience.

[trim matrix]

ah its fine no worries i will figure it out eventually. It just has to be annoying till i do lol.

[vernal ibex]

any ideas why this trigger isnt working?

i just pass right thru it

did i miss something crucial?

[fallow fox]

Use box trigger and see if it works

[vernal ibex]

yep that worked 😄 ! thank you

[fallow fox]

Btw you should use other actor to cast to something, otherwise all the actors will trigger the action

or if it's what you want

[vernal ibex]

oh i was just testing it

and was following a tutorial

[tight schooner]

@crystal mural From what I understand, construction scripts are executed in the editor (or if not, during packaging) and the state is baked into the level, which assists loads times. The ramifications of moving things from construction script to BeginPlay is everything pre-placed in the level will execute their scripts on BeginPlay, which could have a significant performance impact if you have hundreds of actors in the level with sophisticated scripts.

For actors that are dynamically spawned during play, I don't think there's a practical difference between construction & beginplay... Maybe your bullet velocity issue is one of those edge cases. I suspect construction happens before "activation" but idk. Maybe some component needs those parameters pre-set in construction.

[frozen copper]

Does a for each loop with break complete after the break?

[fallow fox]

Yes

[tight schooner]

@ashen sparrow Is your muzzle flash effect omnidirectional? I noticed you're not setting any rotation on it. Beyond that, dunno, sorry.

You can try a "draw debug sphere" node to see if the socket location is really reporting correctly

[frozen copper]

I am looping through all my enemy actors and trying to determine when they are all dead, what should be the right way of doing this?

I was breaking after i found one that was not dead

[tight schooner]

I've never tackled this problem myself but I think it'd make more sense if the enemies reported-in upon death to some manager BP

rather than having a manager check constantly the states of enemies

The manager keeps some array of enemies, and enemies can register/deregister themselves from that array. Or something like that.

You're seemingly using GameState, so in your example every enemy can GetGameState and let it know what's up by calling functions on it or w/e

i.e. the enemies can tell the gamestate to put itself on the LivingEnemies list, or move itself to the DeadEnemies list.

(now that I think of it, I have tackled this problem myself but not with enemies lol)

[frozen copper]

I solved it by just checking the length of the array of enemies instead of using a loop

This section is called off of a timer.

[tight schooner]

if the enemies destroy themselves upon death then yeah it should work

[frozen copper]

they destroy after .5 seconds

[tight schooner]

Another "dumb" way to handle it is by having the actors tag themselves and the GameState using Get All Actors With Tag

[crystal mural]

@tight schooner Cool thanks. Ja I put it back onto the construction script, packaged for shipping and it still worked fine! So I suppose it's fine! Another weird thing that happened was I had the bullet "health" calculation happen before the score update, so when the bullet died the score wouldn't work on the first level with the bullets' health being 1. LOL! I'm learning 🙂

[pine trellis]

im getting an error on my blueprints I cant figure out anyone know why?

[crystal mural]

I've never tackled this problem myself but I think it'd make more sense if the enemies reported-in upon death to some manager BP
@tight schooner I do this with mine. Works like a charm. The manager counts everyone before hand, and everyone then reports when they die.

[ashen sparrow]

When I shoot I spawn a particle at the muzzle location. This particle represents a bullet trace.. The PE stays put in its spawned location. How would I go about moving the PE?

[tight schooner]

@ashen sparrow It really depends. A simple way to make a particle move is to give it a velocity parameter and use BP to set a vector parameter on the effect. (The exact setup differs between Niagara and Cascade but on the blueprint side it's the same.)

I haven't done ballistics so I can't give you specific guidance on the "best way" to do ballistics vfx

for pointers on the particle effect programming end of things, you could try #niagara or #visual-fx

[frozen copper]

Is there a way to get a reference to a player character from a controller?

[vapid hatch]

i currently have a problem with references just being reset to "None" when i restart UE, i checked everything i changed and cant find anything that would cause this, it also only happens after a certain commit on my git, anybody got an idea what the problem could be? (please ping me with possible answers)

[mortal wharf]

How do i make a delay with a random float in range delay two things? As soon as the random float in range delay has completed i want it to do two things at the same thing how do i do this?

[jaunty dome]

sequence might solve your issue

Is there a way to get a reference to a player character from a controller?
@frozen copper Get Player Pawn

[main lake]

Can someone explain to me why my print string shows up one in two times even if I asked it to show only if my ForEachWithBreakLoop is complete please ?

and this function (GameFinished) is called everytime the player presses a checkbox of my grid mini game

Here's my grid of checkboxes

[charred berry]

following tut on creating ai char., and OP searches for , getcont, for him get controlled pawn shows up, here nothing, what did it change to ?

get player pawn ?

[trim matrix]

Hey I want to change rotation value if rotation value is 180°

Any idea

To do this

[flat raft]

@trim matrix If <get rotation> == 180: set rotation = something

so, condition node. == and Branch

[hazy vortex]

Hello fellow unreal users!
I am kind of new to UE4 (think of maybe 1 month exp)
I am working on a 3rd person game where I want to control elements.
Now to the question:
I dont know how to look for it myself because its kind of specific, but how can I get access to the location in the world where my crosshair is aiming at? For instance when controlling earth i want to aim at the ground and then to make it spawn a rock from there (that can be used later, but thats not what i need help with right now).
I appreciate every form of help, even sending me a link to the answer, since i really couldnt find anything.

[flat raft]

@hazy vortex look up LineTrace, and or Spawn Item at Location, Spawn bullet Decal on Wall

[hazy vortex]

nice thank you @flat raft , it sounds like exactly what im looking for!

[tight venture]

@hazy vortex you may also find this helpful:

[hazy vortex]

oh yes this is great, thanks

[flat raft]

Can someone explain to me why my print string shows up one in two times even if I asked it to show only if my ForEachWithBreakLoop is complete please ?
@main lake Use the Debugger. Put a Break on the Fuction, and see how it flows.

[charred berry]

I'm really stuck on my issue any takers ? ;((

[maiden wadi]

@charred berry GetControlledPawn hasn't been changed. It's a function for any Controller class. Usually specifically AIController or PlayerController.

[trim matrix]

following tut on creating ai char., and OP searches for , getcont, for him get controlled pawn shows up, here nothing, what did it change to ?
@charred berry I don't understand your question

You're trying to get controlled pawn?

[charred berry]

inside my game , creating ai player following youtube tut, part of making it is creating a get controller pawn node, but there is no such node

Its only one yr oild

old

get controlled pawn maybe it is

ya

[maiden wadi]

@charred berry Are you trying to get the controlled pawn of a Controller, or the player's pawn?

[charred berry]

after havig made class pawn

its just a robot companion for player, in tut case, its a chase pawn

[trim matrix]

As far as I'm aware, you can only get the controlled pawn of a controller, not a character?

[maiden wadi]

@charred berry Okay. Does the node you're after have a blue or green pin on the left side?

[trim matrix]

an AI controller

https://gyazo.com/22ce454d251e8daf744c53c2fb42b451

[charred berry]

looking

[trim matrix]

First I called Get AIController, And then Get Controlled Pawn

[charred berry]

all I know is this is part of ai move to

with timer at top of bp

with get player , and get controlled pawn nodes

all part of event begin play

[trim matrix]

can you link me the tutorial? I don't know what you're trying to do

[charred berry]

ill try one sec sorry , yup

goolging, its on tv so :)) one moment pls

https://www.bing.com/videos/search?q=unreal+beginner+tutorial+%3A+building+your+first+game&docid=608008429772736883&mid=D4C2A84AC3CD1321DC22D4C2A84AC3CD1321DC22&view=detail&FORM=VIRE

[trim matrix]

which part of the video?

[charred berry]

im geting ther

https://youtu.be/QJpfLkEsoek?t=527

[trim matrix]

so you just want the AI to follow you?

[charred berry]

yea thats fine for now

it was just to be a start

of something much more complex

[maiden wadi]

It's GetControlledPawn from an AIController.

[trim matrix]

^

I'm pretty sure you can just call reference to self aswell

[charred berry]

guys im not a hugely adept programmer

i need baby talk here almost

[trim matrix]

that's okay

[charred berry]

almost ;))

[trim matrix]

just try to replace it with "get reference to self"

[maiden wadi]

Are you following this tutorial exactly?

[charred berry]

ok

yes

ive never done ai anything b4 so

I hazve a huge sculpted world comop world

so adding to it over time

😉

[maiden wadi]

Then your class should be a class that inherits from an AIController, and you should be in that class. Right clicking and typing GetControlledPawn should make that show up.

[charred berry]

controlledpawn isn't showing up since I started out with 'pawn' class is what youre' saying ?

or did this change over a yrs time ?

OP started out with pawn <<<

:class as in

[maiden wadi]

In your tutorial, where you linked that, that class he has up. It inherits from AIController.

Top right is the parent class.

[charred berry]

OHHH so sorry I copletely missed that lol

rathe inconspicuous place ;))))

BUT YA good ic now

whew

[trim matrix]

https://gyazo.com/bf9b473625e89990632bb85881fbbe03

both work the same by the way

[charred berry]

im pulling out of pawn as he did

and I get no get controlled pawn anywhere

let me look once more 😦

ya no all I see is get player pawn

[maiden wadi]

Is your AIMoveTo inside of a class that inherits from AIController like his is?

[charred berry]

f**

sigh

[maiden wadi]

It won't show up unless you're dragging off of a pin that is of a class that is or inherits from Pawn, and that node with the pin is inside of a controller class of some kind.

[charred berry]

maybe Id seen another tut I dont know arguh

illl fix it TY SO MCUH

[trim matrix]

just use self...

[charred berry]

embarrasing but ty!!

[trim matrix]

lol

[charred berry]

OK

its ok I fully get it

makes complete sense

ty again

and here I thought inheritance was some complex c++ procedure LOL

maybe later... ;0

we are you talking about just typing 'self' from pawn >>> ai move ?

I mean I know ai controller was proper place to start

[trim matrix]

https://i.gyazo.com/thumb/1200/bf9b473625e89990632bb85881fbbe03-png.jpg

[charred berry]

yes thats what I meant OK GOOD, ty at least for now I don't have to start over

excellent

[trim matrix]

yup np

[charred berry]

thx everyone o_0

tada LOL

[open crypt]

How do I create something that functions as a delay but can be interrupted, without using a loop?

[charred berry]

https://forums.unrealengine.com/development-discussion/blueprint-visual-scripting/1458786-how-to-interrupt-ai-behavior-move-to-and-wait ,< does that do you any good ?

[open crypt]

the best I can think of is using a timer that periodically runs an event that jumps into the event I want to delay

[maiden wadi]

@open crypt You can either make something manually on tick(would generally not advise). Or, simply make a timer, and use it's handle to clear and invalidate it if you want to interrupt it.

[open crypt]

Going to have to read up on using handles that way

Let me lay out my use case

I'm experimenting with some very basic A.I., essentially simple variables that update different logic...before I even hook up any physical actors, I want to examine the logic and see how it performs....

so if I am sending an a.i. firefighter to perform a task, right now I'm just hardcoded the time to do the tasks, and moving on

so I'm going to have various phases between each task

so Fire Attack might have multiple phases, like 1 - moving to the store 2- opening/forcing door 3 - searching for fire 4- fighting fire , and so on

@maiden wadi so I am starting the first phase but also running an event that checks if the unit is done or not

Basic skeleton of the logical process

Basically I'm taking the time it takes to perform the task, adding that to the current time, and then constantly checking to see if the actual current time matches that same time plus the 30 seconds

although that last one is wrong, I have to move some stuff around to make the timer logic work, I set a variable there instead of updating it which obviously wouldn't work

[vernal ibex]

Teleporting to Tavern works but for some reason teleporting back doesnt? is my code right?

[latent arch]

Hey all, is there a efficient way to add all "new" actors to an array at a semi fast interval? So im grabbing all the actors in my map and adding them to an array. Then maybe every 100ms or so id like to add all "new" actors that arent already in that array to it, Is this reasonably doable?

[mental robin]

I am trying to only return 2 decimal places of these floats. There were three solutions online I found and neither of them worked

[crimson swan]

you're looking for truncate aren't you?

[heady terrace]

@mental robin In your output to screens, in actual memory, or both? For the former, in regular programming you have to use additional function calls to format your string.

It looks like there's ToText nodes in the Kismet Text Library (i.e. Blueprints). They've got them for most number types. Including floats. Play around with them to figure out how you want them to display.

[earnest tangle]

^ yeah if it's for display purposes, you'd need to use number formatting functions like those

[heady terrace]

Ok I have a quick problem: AnimNotify Event Nodes for Animation States (Entry, Exit, Blend complete) aren't firing. I can add them into an EventGraph, but they aren't firing.

[earnest tangle]

Are you adding them into your anim bp or some other bp?

I was having similar problems and they fired fine in the anim bp, just not in other bp's :)

[heady terrace]

Not the animbp, I'm adding them into the Third Person Character BP.

I need them to turn off the capsule collider for mantling animations.

[earnest tangle]

My solution was to use them in the anim bp, and have the anim bp call an event in my character bp

[trim matrix]

Why on earth does the impulse normal return a positive number on the normal level but on streamed levels it returns a negative?

(Or the opposite value on streamed levels)

[earnest tangle]

I'm not sure if there's some other workaround for it but at least that way I got it working :P

[untold anchor]

i have objects inside of another object inside of a blue print, the outside object is using inverted normals and a fresnel shader to do an effect. I've set the objects on the inside up with On Clicked component events, and i've shown the cursor, and i have inputs determined via project settings. However, my clicks don't seem to be reaching my objects. My suspicion is that the container object is not letting the click reach the objects within it? if so, how do i resolve that? and if not, any clue what's happening?

[vernal ibex]

hey can someone please help me with my blueprint?

[heady terrace]

@earnest tangle criminy, if that were the case then the nodes should not even appear in the TPC event graph in the first place.

[earnest tangle]

@heady terrace yeah, I suspect there might be some way to get them working in other BP's as well since they do definitely show in them as well... I just couldn't figure it out :P

@vernal ibex it would be helpful if you can explain what's wrong with it

[vernal ibex]

oh

only one teleporter works

the top code

[heady terrace]

@earnest tangle I think he explained it a few screens above.

[earnest tangle]

Ah musta missed it :)

[vernal flax]

wtf with that cast to nothing ;p

[vernal ibex]

wyn

wmy

wym xD

[heady terrace]

My problem is that I cannot see all the details in your screen grab, @vernal ibex. The resolution is a bit grainy.

[vernal ibex]

top one that works

[mortal wharf]

Anyone Have A Good Setup For A Round/Circling Rotation Of A Camera Shake?

[vernal flax]

they look the same ;p

[vernal ibex]

bottom

i dunno i followed a tutorial and this is what he did

[vernal flax]

obviously something with ending point

place target point on map

get it selected

rightclick on levelbp

and you have reference to it

and remove that cast to character coz its useless

[heady terrace]

@untold anchor I have not done that quite just yet, but I believe your logic is correct. Check the Sphere's Collision Tab in its Details section. My guess is that it should not say "Simulation Generates Hits," but I am unsure if that applies to clicks...

[vernal ibex]

could it be the booleans messing up?

[vernal flax]

rightclick on that Branch

and select Set Endpoint

then play

then game will be stopped when you get into that node you set the endpoint on

Anyone Have A Good Setup For A Round/Circling Rotation Of A Camera Shake?
@mortal wharf like, you can always parent to an object and give it more variations in certain way. Like attach camera to a sphere, make it roll, make parent of that ball and give it another dimension of movement

But depends ;p

@vernal ibex yea, test it with breakpoints so you see values of booleans

[vernal ibex]

alr

[feral granite]

Getting this weird error
Blueprint Runtime Error: "Accessed None trying to read property CallFunc_GetBlackboard_ReturnValue". Blueprint: EnemyCharacter Function: Execute Ubergraph Enemy Character Graph: EventGraph Node: Branch

Only happens on actors created from "SpawnActor" node. Any ideas on why?

[vernal flax]

@feral granite send nodes

you are providing a bad reference to that branch

you can also use IsValid node to check if the reference is correct before you try to access it.

[untold anchor]

@heady terrace

[feral granite]

Creating the actors

[untold anchor]

i don't have that checked unfortunately

[heady terrace]

@untold anchor bbl

[untold anchor]

bbl?

[vernal flax]

Try WaitForValidate for example. But that function seems wrong. Also you had that NONE in Branch somewhere, so start there.

[feral granite]

This is BP is from my enemy character

[vernal flax]

Check if those are valid before you test on that branch

[vernal ibex]

I added the breakpoint

[vernal flax]

like IsValid and print when false etc.

@vernal ibex yea, game is stopped, check your bp, should be opened already.

Test that with Play in Viewport

OKAY, 3 more questions and im going back to work.

xP

[heady terrace]

@untold anchor sorry, needed a quick break. I haven't done much mouse stuff yet. But try configuring the big sphere to use a different collision channel than the inner containers. Then when testing for collision, set it to a different channel.

[feral granite]

@vernal flax I did a 'IsValid' check and did get some prints from being not invalid. But why wouldn't my BB valid? Just hasn't be initialized yet?

[untold anchor]

well, i removed the sphere temporarily and it's still not clicking to the smaller objects, so i think my original hunch wasn't correct

[vernal flax]

maybe, try with WaitForValidate (something like that)

There are a lot of issues where just adding delay does magic.

[heady terrace]

@untold anchor good! You know what's not wrong!

[untold anchor]

lol

no doubt

[heady terrace]

That helps. Trust me.

@untold anchor How are you running hit tracing with your mouse button clicks?

[untold anchor]

i really simplified what i'm doing cuz explaining it is a bit more difficult, but boiling it down, it seems to the "simple" issue i'm dealing with

i'm not running a trace, i'm using the mesh component event on click

[vernal flax]

What sends On Clicked event to that MoonFish?

[untold anchor]

that's the thing lol, it doesn't have one?

it's a functionality of the engine now from what i've read

these base events can just be detected and trigger

[heady terrace]

@untold anchor Another way to do it would be to use a "Get Hit Result Under Cursor" node in response to an lmb click event.

[untold anchor]

as long as you have them active

[heady terrace]

@vernal flax are you implying there isn't an event system raising the OnClicked event for that actor's mesh?

[vernal flax]

Just asking, i dont know anything about that project, wanted to help so just asking for essential thing. Idk if it's VR game or mobile game or 3d or 2d. Now I can assume more ;p

[untold anchor]

it's a 3d game, one sec, i'll record a video

demonstrating what it isn't doing and what i can't get it to do

don't mind the missing materials lol, making them as i wrap up each part of it's functionality

[vernal flax]

embrace the jank

[untold anchor]

lol, uploading

https://streamable.com/je4nty

https://streamable.com/2jk0im

basically, have two fish, when i click the blue one it needs to change the little sky thing into the night version, and when clicking the orange one, it turns to the day version

have the functionality working, and set to a keybind currently

now trying to get it to work on mouse click

[heady terrace]

The mouse click will never trigger unless you have pressed the K key, though.

[vernal ibex]

welp i got the teleporter to work once and then it broke again :/

[heady terrace]

oh wait nevermind

[untold anchor]

how so? o.o;

[heady terrace]

sorry, I screwed up. It should work.

[untold anchor]

yea, just two events currrently doing the same thing, cept one is going through a boolean, i bypasssed it for testing purposes of course

[vernal flax]

You are unpossesing your pawn? Or how is transition done?

[untold anchor]

sot he transition is done having two cameras on the objects

object

and of course, i have a camera on the player

i just used a set view target blend

put the cameras on some spring arms

[heady terrace]

@feral granite are you still having issues?

[untold anchor]

and then feed the mouse movement x and y into some rotational math

to swivel the spring arms around

this blueprint isn't a pawn, just a skeletal mesh actor, it's not posessable from what i understand

[vernal flax]

i see. Okay, so you can definitely set custom collision channels just for that. You can also set collision off to that inside out sphere when transitioning to another camera

[untold anchor]

so i did a test

[heady terrace]

@vernal flax he should use collision detection, though. I don't know if OnClick uses collision detection.

[untold anchor]

really complicated one lol

nada

[heady terrace]

then don't use it. 😄

[untold anchor]

but it's a feature >_>

[vernal flax]

does anything happens when you keypress?

K does anything?

[untold anchor]

yea, k does the day night switch

i want to make it so that when i click the fishies it switches instead

[heady terrace]

Try instead using "Get Hit Result Under Cursor by Channel" node, triggered by a left mouse button click. Find its object. And then run whatever you want to on it.

It seems more complicated, but just put the nodes into a function.

[vernal flax]

yea, try that one

[heady terrace]

then break the Hit struct into pieces, find the Hit Actor, and print its name.

You might need to put your fishies into a unique channel.

[untold anchor]

well, they will be far from the only things that behave this way

as my goal with the "UI" is to have most of it exist within the world and gameplay

[vernal flax]

check just for tag then

[untold anchor]

and only resort to overlays as little as possible

so get hit result under cursor by tag?

[heady terrace]

if that's a node, then sure. ^^;

[vernal flax]

hit result under cursor will give you plenty options

go test it out, just rightclick and break red or blue output of that search under cursor node

[vernal flax]

i think most of keypresses and events like hit result under cursor should be done in Player Pawn or Player Controller and then passed onward. But that's probably just multiplayer thing, in single you should get away with that.

[untold anchor]

it has no execute in or out X_X

i've never used cursor / mouse stuff before

hence my excitement when i saw a giant green button promising to make it pretty straight forward XD

[heady terrace]

use a mouse click event

It's easy. Just like using keys. when a click occurs, an exec pin will appear. Drag that into the Print String node's exec pin.

[untold anchor]

oh, gotcha, it works different than the other traces then

[heady terrace]

yeah, huh?

[vernal flax]

yea, ray trace has exec's

[untold anchor]

my fishies don't go into it i figured i could use the physics assets on them but, don't see a way to get my physics assets for the fishies there to make the array

[heady terrace]

Hey, I have a problem. I'm trying to set my character's Capsule Component's Collision Type to **None ** in my AnimBP's Event Graph using TryGetPawn->Cast To Third Person Character -> CapsuleComponent -> Set Collision Enabled (No Collision). It doesn't work.

I can do that just fine in the TPChar's event graph, though.

[untold anchor]

isn't the pawn's capsule inherited?

[vernal flax]

Mippi, in that array you set which collision channels you want to test for

(i think, if i recall correctly)

[heady terrace]

@untold anchor nope, they're not compatible. Have to cast.

[vernal flax]

Set reference to that capsule somehow

Like, on beginplay or get component with tag or something like that.

[untold anchor]

it asks for an array

[vernal flax]

how you made one?

[untold anchor]

just the make array node to test

but how do i put channels into it?

[vernal flax]

you should drag from dark green to the left and then Sugestions should help you out

It should be fine by default

[untold anchor]

those are my contectual options

and if i don't put anything there, it throws an error

[vernal flax]

right, wait a se

by channel maybe?

and yea, i was right, just drag from that array and Make Array

oh, i see you had it already before. So check that other Get Hit Result Under Cursor

[untold anchor]

by channel or for objects?

[vernal flax]

whatever makes you happy (so w/ works)

[untold anchor]

i'm guessing by objects, since you have the array spot there

[heady terrace]

@vernal flax That does not work either. :/

[untold anchor]

i'm gonna try by channel since by object, those array options, don't really match the fishies

at least, not that i can tell

[vernal flax]

um, is fishes static or mobile

mobile coz if moves

so its WorldDynamic