blueprint

[harsh coral]

Hm, no dice. Doesn´t matter if I place the "skeletonTag" visibility or the "skeletonTag.Chest.Hide" visibility switch before one another, the result is always that the visibilty is controlled separately.

[harsh coral]

ok, figured it out. Actually pretty simple, didn´t have to mess with any more complicated gameplay tag stuff: Just addded an "And Boolean" to the subparts visibility check, that also checks for the top group part visibility. So now when the top is hidden, the subpart is hidden as well, but when the top is visible, I can still separately hide the subpart.

Ok, just another quick question:
I have a bunch of branching nodes with boolean checkboxes. They should be editable, but only appear in the blueprint details panel, if they are actually on the branch that enables them. Is that possible, or are they always spawned in the details panel, if I check "Instance Editable"?

For example:
A- Enable material override?
If that is enabled it branches further to
B - Use Wireframe override?
So, if A remains unchecked, B shouldn´t even show up.

[deep elbow]

anyone now good resources for localization? trying to use string tables but can't get a way to ONLY have string table text be used/gathered, i don't need to gather text cause i have everything in string tables already, and gather can't find string tasbles for some reason, but it is finding tooltips in niagara particles which is just.. very useful

[deep elbow]

you can't show/hide variables like that, they will always be visible

you could have certain branches always set a bool to true/false to hammer home the idea they cant be editable tho

[deep elbow]

seems you can't have string tables in content/localization, pretty fucking dumb

[thin panther]

This is a C++ only thing. You'd want details customisation, or EditConditionHides

[steady night]

can someone help me with this formula

[harsh coral]

Hm, yeah, its not that important...would be neat, but thats purely aesthetics, our team isn´t that big...:)

[steady night]

i want it to trace randomly in a 180 degree angel infron of actor

[harsh coral]

Think I´ve asked this before...but is it possible to create layers in the outliner through a blueprint construction script, or is that something I´d need to do with an editor utility script?
The one thing I don´t like about this blueprint approach right now:
Its a bit difficult to animate/change single skeletal meshes inside the blueprint in a level: I basically have to add the blueprint to the sequencer and then manually select the correct skeletal mesh by name, because I can´´d directly pick it in the viewport.
Is there a way I could implement a similar functionality as in the packed level blueprints, where I have an "edit" button directly in the blueprint, that makes it editable in the viewport?

[gentle urchin]

Is it incorrect?

[hidden timber]

Currently doing a line trace which is supposed to return true if the actor is BP_CarSlowDown, but it just keeps returning false even though it is colliding with the right object

Am I missing something obvious right now?

[gentle urchin]

Why would you let the car 'talk' with slowdown?

Isnt it more logical tomplace that responsibility in the slowdown bp?

The answer is yes

[hidden timber]

The slowdown is just a collider to let the car know that it should slow down when it sees it and then speed up once it no longer sees that object

[gentle urchin]

It should tell the car

Not have the car ask it

Did this a few days ago in a chaos vehicle

[hidden timber]

So ray trace the other way around? I'm also planning on making it slow down if it sees a player, so that's why I initially put everything on the car, but I will look into it!

Still confused as to why it's not registering as true when it hit the object though

[gentle urchin]

Feels odd to trace when theres a collider

[gentle urchin]

Try checking the class instead

Or simply cast it instead

[hidden timber]

That is what it's currently doing i believe

[gentle urchin]

Class is purple

[hidden timber]

Ohhhh my bad! That worked like a charm, thanks!

Also, when you made the car slow down, did you just lower throttle input or did you also apply breaking?

[gentle urchin]

Braking while speed was > maxSpeed and bLimitSpeed was true

https://media.discordapp.net/attachments/221798862938046464/1209110985445605396/image.png?ex=65eef5db&is=65dc80db&hm=3f96a62e5448cf0cddfaf74270cdaa0953a6d9f6c06d2f392ce3c1d08a177880&

https://media.discordapp.net/attachments/221798862938046464/1209110615201943643/image.png?ex=65eef582&is=65dc8082&hm=9f2515c47f362618c61440f9d0389152d7d9b4b35b7c12f6e584d700bfa3fcf7&

[hidden timber]

Oh so you set breaks to 1 a single time every time the speed goes above a limit. I seeeeee

Thanks!

[gentle urchin]

Here is the convo

[gentle urchin]

This is done on tick

[hidden timber]

Oooooo thanks! Appreciate it

[gentle urchin]

Im sure it can be cleaned up abit but it was proof of concept. Mind the fix a few comments dowm

There should be atleast 1kmh between braking and throttling to avoid weird behaviour

On/off braking...

[untold fossil]

https://i.gyazo.com/80324a42a469beb55fce92f66e6980f4.mp4

Why can't I find this node in search?

I honestly don't even remember how I got it there in the first place

no matter what I type in search this node can not be found

not even with content sensitivity off

[undone bluff]

It's an event of the PawnSensing component

just right click the component > add event

[untold fossil]

Aha

ok thanks 🙂

[undone bluff]

event dispatchers only show up in the search when they are implemented by a parent class afaik

[untold fossil]

Aaah kk

[undone bluff]

or subsystems

[elfin lagoon]

visibility of a Decal component is Off for Parent character, and i want to set in On for Child character
these nodes dont help, so, how to do it right?

[golden kite]

Maybe I'm not understanding the question. Why don't you promote "New Visibility" to a variable on the parent blueprint and then make sure it's set to Public (instance editable). Then you should have access to it on each instance - you can either manually set it off or on in the Details panel, or you can change it using BP code if you need to.

Does that help?

[elfin lagoon]

mm... nope

[valid oyster]

@faint pasture no real fancy logic here, but managed to do it without a priority system

the last bit of logic I need is just to compare whether or not the data assets are the same, and if they are we don't do anything

trigger inside of trigger no issue now

[steady night]

@gentle urchin yee

[signal perch]

When I click with the mouse it takes me to an irrelevant place

help

[undone bluff]

get mouse position returns screen coordinates. top left pixel is 0, 0 and bottom right pixel is whatever your screen resolution is

you are taking that value and setting the world location of the camera to it

[signal perch]

I don't think it has anything to do with him.

when I click the mouse again it goes to the position I clicked before

[undone bluff]

so it works correctly if you click twice?

I couldn't imagine how

[signal perch]

When I drag the mouse again from where I left it, there is no problem.

[undone bluff]

I don't understand

let's start with what you're trying to do

[gentle urchin]

So whats happening vs expected?

[undone bluff]

? yea what I said, you are taking the screen coordinate of whatever pixel the mouse is on and setting to world space location of the camera to that value

behaviour is as expected, but I assume that is not what you're trying to do

[signal perch]

no offset location

[signal perch]

scroll the screen according to mouse position

[undone bluff]

functionally the same thing, location relative to the springarm, then

[signal perch]

what is your solution

should move according to where I click

should not throw back to previous position

what I'm trying to do

[undone bluff]

yoo someone is giving away free $50 gift cards <@&213101288538374145> get them before they run out

[undone bluff]

give me a sec

[signal perch]

ok

[undone bluff]

for starters you can trace for the world location directly under the mouse cursor using "Get hit result under cursor"

Dragging is simple enough in UMG, and that's probably how I'd recommend you handle a map that's an image

[signal perch]

I don't want to do umg

[undone bluff]

fair

when the mouse is pressed down you can have the map move along with the world location under the mouse or the inverse of that with the camera

[signal perch]

It might work. I'll try it. but I prefer the camera to move

[undone bluff]

https://youtu.be/s7lopptq5gg

this approach seems alright

ah, I suppose this is what you were going for but you got confused with the term offset being used in relation to the springarm

(you can and probably should use get mouse position instead of get input touch state btw)

[slate fable]

how hard would it be to implement a turn based system similar to magic the gathering? As in creating a turn to do xyz via. "Draw card">"Roll d20">Result of roll = /4 different results 1 draw another card from a different pile 2. encounter a creature' enters combat 3 heal party 4 take damage/ "Draw another card and roll d20 again for results of next "area"? like what sort of things would I have to use? Arrays for random drawing cards, would I use a state system for the turns? I asked in the programmers hangout too but thought id also ask here. The d20 system that I've been working on has been perfected i think using a different dice model to calculate rolls Ive just been tinkering with getting a turn based thing going on here any help would be appreciated 😄 cant thank you guys enough for being here

[slate fable]

didnt read much into it but i found this last night sometime if this is what youre trying to do https://www.youtube.com/watch?v=b1_efR9hrT4&t=273s

[gentle urchin]

Id probably make some player manager which handles the turns themself. Then some sort of enum for the players state, if they're doing event rolling, attack/defence etc

Hard to put in a few words

And without knowing the full overview of how it would work

Never played any d20 game

Any D&D for that matter

[slate fable]

i could spell it all out if you have a bit of time 😅

imo its not too complex im more trying to learn how it would work logically

[undone bluff]

I suggested the get hit result under cursor node as the mouse location in world space alone only gives you the start location for the trace

But yea working with an offset from screen coordinates like in the tutorial is better

[slate fable]

i just wasnt sure how relevant it was being that it was UE4 i feel like a large portion still translates to 5 🤷🏻‍♂️

[azure wharf]

hello everyone, I spent hours trying to figure this out online. I made a tile blueprint that activates when my topdown character steps on it. I'm trying to make another blueprint that manages the puzzle of "all tiles are activated". I made a public variable array and selected the 2 tiles in my level for testing, but I cannot figure out how to check if all actors in the array have a true boolean. This is what I have currently... any help would be greatly appreciated 🙏

[slate fable]

you cool if I send you a DM? @gentle urchin

[fiery swallow]

Set the all tiles boolean to true before running the loop

[azure wharf]

thanks for the reply, but it still doesn't work

[fiery swallow]

Well i mean... are you actually setting the "is active" boolean properly?

[azure wharf]

this is in my tile blueprint, and it seems to work as it's changing materials when I step on it

[fiery swallow]

Oh

[azure wharf]

this is also in the tile bp

[fiery swallow]

It's because you're doing this check once on begin play

You need to do the check everytime you step on a tile

[azure wharf]

should I do it on tick?

[fiery swallow]

No -.-

[slate fable]

Tick seems expensive 🤔

[fiery swallow]

Depends on how you use it.

He just doesn't need it in his particular case

Whenever you step on a tile, cast to whatever actor is doing that tile loop check, and then tell it to do the check again

You could use an event dispatcher as well but you probably are not at that level yet.

Or simply make a timer on beginplay that checks the tiles every second

[mystic edge]

Hey, I am trying to make my player be able to switch between his normal playing camera and controls and a drone which he can access by pressing X. So the drone should move independently and have its own Inputs and so on, like a second character. Does anyone have an idea on how to achieve this?

[azure wharf]

what node would I use to "tell it to loop check again" ?

[fiery swallow]

A custom event bro. Maybe you should go with the other option and just make a timer that checks every second

[fiery swallow]

2 seperate pawns, in your controller class you'd want to put the input action there for switching between the two.

Save references to them both in your controller class as well... finally when switching you need to unposses from one, and then posses the other

Just create a method to know which pawn to possess next

[mystic edge]

If you tell me how to create a pawn i will try

[fiery swallow]

Huh

[mystic edge]

Im pretty new

sorry

[fiery swallow]

It's the same thing as making a character or an actor

[mystic edge]

Ah, found it thanks

[fiery swallow]

It doesnt have to be a pawn specifically

[azure wharf]

thanks man, got it working with the timer check

[fiery swallow]

In your case you likely will have a character (your main player) and a pawn (the drone)

Characters are also pawns

[mystic edge]

Thanks man! Got it to work

[spice viper]

Can someone explain the difference between these two floats in SetTimerByEvent? I don't really understand the distinction of the mouse over text of them. If delay is say 10 here. Does that mean my event is going to happen at 10, 10.1, 10.2, 10.3 etc... But the Variance description says in leiu of... so it's just random 0 to this value?

[steady night]

hey,

suggestions on how to make the random armor array not being able to fire twice ?

[limber rover]

Hey I'm having an issue with a blueprint based third person aiming system

https://youtu.be/93Fs-Lak9ok?si=eZcd_st_-5GHplRp

The blueprint itself is just casting a line forward from the camera and returning if and where it hits, but as can be seen from the video there's a lot of weird additional extra offsetting when the saucer moves around, like the point of contact, the black and white target billboard, jumps around weirdly

[versed sun]

Copy your array to a new Var
Get a Random off the Copy and remove it from Copy

[steady night]

hmm

¨like thi s?

dosent work

[versed sun]

yah , Random and Remove Random will pick a different random

[spice viper]

As long as you have enough elements to not looping over elements larger than the size of array. It'll get smaller as you remove. Can do a ReverseForLoop for safety

[steady night]

?

hm still dosent work

[crisp geode]

Guys can anyone help me? i just fractured a static mesh, but when i hit play it just explode into bits. How can i help that?

[mild valve]

Guys is it possible to shift object position from point A to point B without using tick, or timers, or timelines? Or if using timer for example, but with lower update than tick and transition smoothly between values? What I'm trying to do is to move a lot of instanced meshes, but really don't want to load them with unnecessary frequent time updates, so I wonder is there any way to smoothly lerp for example each 0.5 or 0.1 seconds for example from one position to another, without timelines and all of the heavy stuff

[tidal marlin]

Initial start delay + random delay in range (variance)= end start delay i think.

[wispy badger]

Any help? BP doesn't want to fade my screen and my camera stays in default (0,0,0) position (I spawn the player after an intro "cutscene")
Blueprint: https://blueprintue.com/blueprint/_qjgenni/
(sorry its all packed up ;/)

[grim sand]

Is it not possible to simulate physics on a mesh that is using "Complex as simple" collision setting in the mesh?

[steady night]

@versed sun nice ty!

[jade lintel]

nope

[grim sand]

Gotcha, in that case I need to delve a little deeper as to why my golf ball is reacting so erratically when launched up curved track sections

[jade lintel]

if you mean the track is using complex collision, that shouldnt be a problem

in your case the ball can't use complex collision which i assume you already know

[grim sand]

Yea I had that at first, but decided to change it back to simple collisions as the track pieces are just simple flattened cubes. I am using a spline to use many pieces creating curved tracks.

[twilit lynx]

Question:
I have a first person character that can go up to a table, press E, and switch to the tables camera. Whats the best way of setting up movement for that tables camera (up, down, left, right, scroll, etc.)

[jade lintel]

afaik splines dont affect collision unless the mesh uses complex collision

[grim sand]

I reckon my problem might be that the impulse velocity is too high? Causing it to bounce off what is essentially a curved collision surface. I am already using CCD and Trace Complex on Move

[jade lintel]

can you show me a video of that

[grim sand]

Yea sure, it is not a 100% repro, so let me get a video that shows it

[lofty rapids]

maybe a pawn with a camera, where you can put the events on

[twilit lynx]

So i should possess the table actor and use its graph from there?

[lofty rapids]

i mean it's an idea

not sure if it's the best, but it has movement built in

so you can possess and use it

[grim sand]

Here is an example of the issue. This is still pretty mild, sometimes the ball bounces back to where it came from. It has been quite a challenge to get this relatively simple aspect to work reliably

[twilit lynx]

mkay ill try that out, thanks

[atomic light]

i am once again asking for help with my balls

[grim sand]

And this is how I am adding the impulse. A simple float x forward vector (excluding the Z).

[jade lintel]

have you tried messing around with the physical materials

[grim sand]

Yea 😅

[jade lintel]

so you want to get rid of it bouncing too high right?

[grim sand]

I also figured maybe the golf ball is too light? It 'weighs' 0.1kg, and changing it to 1kg whilst also increasing the impulse by 10 times, makes no difference in the end result

[grim sand]

Its more that it bounces unrealiably. So sometimes it will go up the hill perfectly fine, and other times (from seemingly similar positions), it reacts eratically

[atomic light]

another person with erratic balls

[jade lintel]

might be due to frame rate i believe

[grim sand]

Ah, as in the physics update doesn't update frequently enough?

[atomic light]

i was told yesterday to ramp up physics iterations in project settings

it didnt help me but you might wanna check

[jade lintel]

if physics is tied to the frame rate it always creates problems lol

[grim sand]

You mean these settings?

[atomic light]

yep

[grim sand]

Gotcha, let me take a look at this and the substepping section. Time to crash the engine 🫠

[atomic light]

dont forget to reset it if it doesnt help not that it creates problems down the line lmao

[grim sand]

lmao, yea been there done that. Thanks for the reminder lol

Okay, looks like enabling substepping and increasing the Bounce Threshold Velocity from 1.0 to 0.2 * my world gravity value (188.0), it looks to make the interaction with the surfaces way more stable.

Thanks for the suggestions @radiant aurora @atomic light you have rescued me from this physics nightmare. Knowing physics though, I will likely be back in the near future

[atomic light]

my balls are now swirling off into the distance

i need to lock some rotations i think

[grim sand]

Also, substepping for those interested: https://docs.unrealengine.com/5.0/en-US/physics-sub-stepping-in-unreal-engine/#:~:text=Unreal Engine 5 uses a,ticked multiple times per frame.

[atomic light]

theyre thrusting off the floor once they look up

[jade lintel]

what does this do

[atomic light]

apply velocity to my balls into the direction theyre facing

[jade lintel]

i can see that but why

[atomic light]

because i want them to move at a constant speed

[jade lintel]

it will always cause the ball to fly away once they look up

add the velocity parellel to the ground

your current code will cause it to ascend to heaven once it starts rolling

[atomic light]

how so

[atomic light]

yeah im trying to circumvent this by having it not rotate to begin with but id like it if they did rotate for the visuals

[jade lintel]

is there a specific direction you want to push the ball in?

the camera forward vector for example

[atomic light]

they have their fixed spawn location, then i rotate the balls towards the center, and from then on they should just constantly move

[jade lintel]

this node can help

V is the vector you want to project, plane normal is the normal to the point on the ground

[atomic light]

currently trying to wrap my head around how that fits into what im trying to do

[jade lintel]

it will make sure the velocity you want to add aligns to the ground

else it'll fly away once it faces up

[atomic light]

so i want my force/vector to be applied only perpendicular to the ground basically clamping all vertical force to 0

[jade lintel]

wouldnt perpendicular to the ground be upwards

[atomic light]

parallel yeah

[jade lintel]

yeah

that node helps with that

you could just remove the z component but that breaks things on a slope

wouldnt recommend that

[atomic light]

yeah i might want elevation and slopes later on so id rather get a solid functionality before all that

brain isnt braining

normal would basically be the elevation of the ball, no?

[jade lintel]

nope

[atomic light]

do i have to account for the spheres rotation

[jade lintel]

iirc the hit result returns a normal

its running on tick so you can do a line trace to the ground

[atomic light]

this is doing my head in i cant help but feel ive overcomplicated this massively

[jade lintel]

i did this for a floating robot thingy

[atomic light]

visualizing the movement of the ball in my head to go through my logic

[jade lintel]

you dont need to account for the rotation

if you want that you can apply a force which will roll the ball

[atomic light]

cant make sense of this still

im gonna open paint and make some drawings and try and understand lmao

[jade lintel]

sure

[atomic light]

i feel like theres something inherently wrong with using "get forward vector"

[jade lintel]

yeah

spheres have no forward

they start rolling and then it has a mind of its own

[atomic light]

how would you roughly implement the logic of what im trying to do

[jade lintel]

get a vector towards the target location

align it to the ground

apply force along it

[atomic light]

yeah thats what I had for the initial push

before I added the part where theyre rotated at spawning

i just applied to each ball a fitting vector that pushed it towards the middle

but the issue is id like to be able to vary the balls speed individually, so add on to it and reduce it etc

but i feel like the moment i add a speed variable id also need a direction to go along with it

[jade lintel]

you can multiply the force towards the center with a scalar for each ball

[atomic light]

i meant moreso after the inital push

[jade lintel]

that direction would just be the direction towards the center

[atomic light]

yeah but i were to fixate that speed by repeatedly applying it it would just suck all balls towards the center

[jade lintel]

where do you want the balls to go

just point the vector towards it

[lofty rapids]

thats what she said

[atomic light]

okay ill lay out the entire process

the balls start scattered around a centerpoint and i want them to clash around boucing off of each other and the ring around them

so the fair thing would be to make em all start towards the center and then let the bouncing start

this is all simulation i have no control over the balls movement other than its speed (in the future not yet that important)

so beyond the very first impulse the direction the balls go to (at a constant speed with no friction no fall off etc.) is determined solely by what it clashes with

did i explain that well enough :S

[jade lintel]

what is this code for

the forward vector one

is it to keep the velocity constant

[atomic light]

thats the blueprint of each sphere that is spawned, as in their logic to keep moving at that speed

[jade lintel]

cant you just turn restitution all the way up and friction to 0 in the physics side

[atomic light]

i do have that

[jade lintel]

does it still lose speed

[atomic light]

yeah weirdly

[jade lintel]

instead of relying on physics why not write the interaction yourselves

add an offset each frame, in the direction of the last collision

without simulating physics

[atomic light]

mate im struggling with making the balls move to begin with 😭

also i havent really decided yet on how the interactions should be with balls of different sizes

[jade lintel]

instead of using the forward vector

get the direction of the current velocity

[jade lintel]

replacing get forward vector with a normalised velocity vector can maybe help here

i dont know how rigid body interactions will work here though

[atomic light]

i was thinking of having collisions happen with an upright cylinder collider so from the top down view (which is how it would be looked at mainly) so that different sizes can still collide easily

but if want to have elevation id probably have to go with regular spheres

[jade lintel]

elevation from the top view wont be visible tho

[atomic light]

well the cameras not orthogonal so it will be visible

but i havent decided yet

[jade lintel]

a capsule collision will work well in that case

[atomic light]

i wanted to make like a randomized last team standing simulator where the outside ring has holes and stuff

so i havent decided fully yet on whether they should be locked on the plane

[jade lintel]

dont keep them locked in a plane

always better to have something and not need it than not having it and needing it

you can always contraint it later

[atomic light]

yeah i do think the ability to lift off with gravity ofc would make it more interesting

[jade lintel]

how will the capsule cylinder work then

the collision

[atomic light]

oh i only had that in mind if i wanted to have 3d meshes but no elevation

since smaller balls would otherwise knock up the bigger balls from hitting them from below the diameter

with elevation and 3d free movement i dont think id need a standalone collider, shouldnt the mesh suffice

[jade lintel]

yeah

it would

[atomic light]

okay so

beginplay i give them an impulse towards the center

and that works so it rolls towards the center and it a smaller ball, that launches it in the air

now i want it to keep moving but only in x/y so i take its velocity and project that upon a plane

[jade lintel]

yeah

its getting a little late here gotta go

[atomic light]

no worries i appreciate the lengthy support

i will keep pulling out my hair over this

[jade lintel]

good luck with it mate

[atomic light]

thank you mate have a good one

[exotic quest]

Hi all, ive started out trying to make my own game recently, im trying to figure out how to add items and an inventory to my game.
My idea is that i have 3 files; An info.s file, which contains the physical properties of the item. An obj file for the model. And a description file.

as for the inventory i have no clue how to do that yet

[lofty rapids]

so you will have three files for each item ?

[exotic quest]

ye

[lofty rapids]

obviously you want that in a folder

[exotic quest]

ofc

[lofty rapids]

and maybe a file that organizes it

how are you saving anything ? theres some built in stuff for that

[exotic quest]

idk yet

[lofty rapids]

but i like to use custom files

[exotic quest]

was thinking i could just have a simple txt file

[atomic light]

wouldnt some sort of database be easier

you could index it too

[exotic quest]

uh

not really because it would just be

[atomic light]

give each item a number

[exotic quest]

ironsword
ironsword
goldsword

[atomic light]

but if you have two ironswords they gotta be different in some way

say one does more damage, you dont have to make two seperate sets of files for that imo

[exotic quest]

well i wasnt really intending that

but ok

i could have like
ironsword {modifier}

the modifier being a certain number pointing to another set of folders

because i do have enchantments planned

[lofty rapids]

it's always good to atleast have an id for a record in a file that your using for data

[atomic light]

well when i said database this is what i had in mind
id | name | description | damage |
1 | ironsword | sword made out of iron | damage |

[lofty rapids]

pipes are perfect too

[atomic light]

so you have default values for all, and if your enchantments are simple +5 damage you can combine those

[exotic quest]

well see the damage was going to be in the info.s file

[flat coral]

What's the cleanest way to do a list of lists in BP?

Specifically I need a list of lists of vectors

[exotic quest]

ill be honest i have no idea how to do this

[lofty rapids]

you can read a file and parse the data

[exotic quest]

maybe i should work on getting attacks with one weapon done first

[atomic light]

i feel like splitting those things up into multiple files would be hell to keep track of

[flat coral]

That's a good first step. Then figure out how to do an inventory just in blueprints, then maybe try to add in the file-loading angle. Work in sequential steps of complexity

[exotic quest]

well, now to figure out how to do that

[flat coral]

Actually wait this is fucked I need a TREE of vectors

Man this is hard to google. It's all either behavior trees or, like, foliage. I need the data structure lol

[atomic light]

relax dr. strange

is it just a binary tree or even more branches

[flat coral]

N-tree

[atomic light]

yeah youre cooked fam

im gonna cry bro it shouldnt take me 4 days to make balls roll around

why is this so messed up

[thin panther]

You really don't want to go implementing custom data structures in bp

Be kind to yourself, use C++

[flat coral]

But I like BP, and I dislike C++

I already built a whole savegame system in BP to avoid C++

[thin panther]

Well unfortunately it can't do everything

Blueprints is a trial version of the engine essentially

In fact the engine has some implementations of trees already, just not for bp

[atomic light]

im gonna consult bing ai i never thought id stoop so low

[thin panther]

Ironically a save game system is one of the huge strengths of C++, because you can just iterate properties and check for CPF_SaveGame

[flat coral]

Actually the realization I had was that you can't. Like, you can do that and set the properties to what they were before save, but if you do that naively you're going to run into problems again and again because it's not enough to set the world to what it was, you need to wind time forward. For example, for an NPC, it's not enough to remember their health was 0. You need to go through the process of having them die, and everything that entails, but in a way which is non-distruptive to the player. You need them to be dead.

It's work every time.

[thin panther]

You can easily restore world state like that, because that's how the plugins work, with a few specifics

There's always going to be some work involved. But it's less than bp

[faint pasture]

Is there a simple C++ save writup araound?

I've noted that tag but I've never really tried to use it

[exotic quest]

alright so for my first weapon (a dagger) i need to have two attacks, stab and slash, i have no clue how to do this

[frosty heron]

Ooof if you use blueprint struct

[faint pasture]

Describe a stab

[exotic quest]

like just

[faint pasture]

Stab sounds like an animation + some data about how much damage it does right?

[exotic quest]

stabbing someone in the stomach

[exotic quest]

ye

[thin panther]

Not that I've found.

I might have to have a deeper dive and write on up

I just know it on a very surface level

[faint pasture]

Research anim montages

[exotic quest]

huh

[faint pasture]

you can do moves as just montages if you want

[exotic quest]

well i dont really have any animations rn

[faint pasture]

since a montage can have notifies on them, and the you can make a custom notify where you can type in how much dmg and whatever

k so make them

[exotic quest]

i dont even have head bobbing

[faint pasture]

or get them

[frosty heron]

Start by having one

Get it or make it

[exotic quest]

animations are lowest priority rn

i want to have it functional

[frosty heron]

Those take down , finishing attack etc are done with montages normally.

U better off getting some anim first

[faint pasture]

so describe how your system works.
The first draft should probably look something like this:

Input button -> call DoThing on MyCurrentHeldItem

Dagger is a subclass of Item or Weapon, and the base class (Item or Weapon) has DoThing event

the dagger would override DoThing to do the dagger things

[shy pecan]

or use an interface

[faint pasture]

sure

you can do it a million ways

[exotic quest]

i dont know what half these words mean in this context

[faint pasture]

then start simpler

What do you have right now?

[exotic quest]

movement

and looking around

the obvious next step is weapons

the gameplay

[faint pasture]

no

next step is implementing any custom logic at all

try this

make it so you can press a button and it'll knockback anyone around

[exotic quest]

that doesnt really tell me how to do that tho

im kinda a fucken idiot

[faint pasture]

go try

ok, get it to print Hello when you press a button

[exotic quest]

print hello to where

the console?

[faint pasture]

Print String node

it'll go to console and screen

[exotic quest]

ok

[faint pasture]

Button -> hello
Button -> sphere trace -> print name of everything hit
Button -> sphere trace -> print name of every CHARACTER hit
Button -> sphere trace -> knock every CHARACTER hit up in the air
Button -> sphere trace -> knock every CHARACTER away from you

[atomic light]

i doubt they have characters, start off with a cube

[faint pasture]

they have characters im pretty sure, probably started with 3rd person template

[atomic light]

i find those templates very misleading

[faint pasture]

yeah but running and jumping day 1 is alluring

[atomic light]

just set you up for failure

[shy pecan]

||https://www.youtube.com/watch?v=iTwxuahe5B4&list=PLHSMxXn4v-aGhuRxxSBVPqykMjDiRyGrJ ||

[exotic quest]

so uh what did i mess up

its doing nothing

[heavy plinth]

Hey does anyone think they can help me try and figure out how to make my physics door locked from one side only? Currently I have a lock and key system but I also want to find a way to make the door only locked from one side.

[faint pasture]

What happens if you don't hook those bools up

[frosty heron]

How so?

[exotic quest]

uhhh

[faint pasture]

does that input action even fire? Put a breakpoint on it (right click)

[frosty heron]

It even have solid anim blueprints to look at

[exotic quest]

there we go now it works

[frosty heron]

Template is fine and sample project r good source to look at

[faint pasture]

If you're 100% brand new it's way too much at once.

[atomic light]

yeah that

[faint pasture]

It's learning to drive in a sports car instead of a shitty beater

[frosty heron]

The anim bp is as simplest as it can be imo

Also the input

Tps template can't get anymore simpler

[faint pasture]

I'm talking about people who don't even know what a class/instance is

[atomic light]

no chance in hell someone who doesnt already know how anim BPs are set up understands it

[frosty heron]

What will u learn with a box

[faint pasture]

everything

[atomic light]

the template is useless to both people who know and dont know stuff

[faint pasture]

How much does someone learn about cars when they start with a luxury car with ABS and traction control and stability control vs starting in a manual trans rusted out shitbox

[frosty heron]

Gotta disagree when it comes to tps

[faint pasture]

you have to learn the hard way to appreciate what's given to you with the advanced start

[frosty heron]

At the end of the day when u want to move stuff it's also the same node

[faint pasture]

When you've made movement on your own, you learn to appreciate the fact that you can just call AddMovementInput and it'll automagically move around

unless you've done the whole Tick -> move the thing implementation, you'll never really understand how stuff is working

I think people should start with a 100% empty world and from a Pawn base but that's just me

[frosty heron]

Well if they start from 0 maybe it's good to know all the components

But in my latest project I just start with tps and expand from there

It has everything I need

[faint pasture]

If you already know how to code that's fine

[atomic light]

well yeah keyword "latest" project

implies youve used it before hahaha

[faint pasture]

The first project someone who barely knows what a variable or function are, should be something like Snake or Pong

[atomic light]

the first project should be the ALS template

[frosty heron]

Is pong even easy?

[faint pasture]

pretty easy

[frosty heron]

The way I see it, u have to detect collision then negate the velocity

[faint pasture]

that's not too bad though

A lot better than someones first project trying to be Valheim but better

[frosty heron]

Don't forget mmorpg

With blueprints too

Now that will be doomed from the start

[atomic light]

my first project was a FPS/TPS/Isometric RPG

i say was like i finished it

[faint pasture]

My first project was a fantasy brawler like Battlefield: Arathi Basin lol

made some cool mechanics but I eventually learned that no, I was not going to make that thing

[trim matrix]

Hi guys, any of you know why when I click install Quixel Bridge, nothing happening? It didn't start installing or anything.

[atomic light]

the first project "im clever i can replicate an entire studios work" enthusiasm

[shy pecan]

breakout clone is a fun first project

or pong

[atomic light]

how convenient you bring up balls

im still struggling with this

mfw i watch pong in UE tutorials and cant even replicate ball movement

[faint pasture]

Tick -> ???? -> Move

[shy pecan]

i made a replicated kart racer movement with network replication and prediction entirely in blueprints

with box traces

[atomic light]

easier said than done when the rothschilds are paying my engine to be buggy

[exotic quest]

ok i now have headbobbing

how would one implement slow walking and crouching?

[atomic light]

cool now add motion blur and lens flares

[exotic quest]

fuck motion blur

all my homies hate motion blur

[faint pasture]

I have to have a TINY bit

[atomic light]

multiple ways really

[lofty rapids]

slow walking is just a matter of setting max walk speed i think

[faint pasture]

since I have spinning things and you gotta be able to tell if it's spinning

[lofty rapids]

if it's a character

[atomic light]

remember how when you pressed a button you made stuff happen

now you gotta make another key slow you down

either held/toggled

[trim matrix]

watch some tutorials

[faint pasture]

fuck tutorials

[valid oyster]

I force motion blur on my players

[faint pasture]

drag your character movement component in the graph, right click it, look at what you can mess with

[trim matrix]

then how is she going to learn when doing it the first time?

[valid oyster]

game looks bad without it 🤷‍♂️

[faint pasture]

hint, you can change the max speed

[exotic quest]

well

[faint pasture]

the best way to learn is to just try to do the thing

[exotic quest]

ive been using tutorials

[trim matrix]

that's good

[exotic quest]

thats how i have headbobbing and moving

[atomic light]

most tutorials arent good

[trim matrix]

they are but they always miss something important

[faint pasture]

Every tutorial sucks, there are some good ones but by the time you know enough to be able to tell which ones are good, you are way beyond them.

[exotic quest]

this is what i have so far

[faint pasture]

How do you think people learned this stuff in the first place, just try to do the thing.

[atomic light]

well yeah because theyre tutorials in the sense that they show you how they did something

so all you learn is how they did something

if you planned on doing something else slightly different you just gotta hope their way of doing it overlaps with yours

[trim matrix]

what is that, why is your screen divided in 4?

[exotic quest]

im using brushes

i usually work with source so its what im used to

[trim matrix]

actually the camera shake looks pretty good when running

[exotic quest]

https://www.youtube.com/watch?v=o1g22erv-2Y

got it from this tutorial

[faint pasture]

In source, how would you make a slow walk?

[exotic quest]

you dont

every source game has the same movement

[trim matrix]

wdym by 'source'?

[faint pasture]

You can't modify the max movement speed of a character?

[exotic quest]

source engine

half life 2

tf2

[faint pasture]

How do they run faster with a knife out in CS:Source

[exotic quest]

by working with i mean mapping

not making games

[faint pasture]

ah

Yeah I started with Hammer way back in the day

[exotic quest]

so idk how they do that funky stuff in css

[trim matrix]

just multiply a value?

[faint pasture]

Anyway, if you drag off the CharacterMovementComponent you can get and set all sorts of values

one of them is maxwalkspeed

changing that will do what you think it does

set it to 100k for fun times

[trim matrix]

changing the speed of the character

[exotic quest]

so i just want to have a button that, when held, halves the movement speed of the character?

[lofty rapids]

well if you set max walk speed, you'll then need to set it back

[faint pasture]

Begin play -> save the default speed
Button down -> set speed to half the default
Button up -> set speed to default

[trim matrix]

as we just said, you can set the value in the player character to properly slow the speed

[faint pasture]

you COULD just half/double on button down/up, but that can get out of sync if there's aynthing else modifying the speed ever, or if you do it a bunch of times and end up with float precision problems. The best bet is to have a stored default speed that you always reference when modifying

[exotic quest]

hold up i gtg

[flat coral]

Is this actually necessary? Does anyone know if Location is sane on a non-blocking hit?

[shy pecan]

its 0 if no hit

[atomic light]

im gonna cry ive managed to make my balls do a goddamn waltz

but not to zing around

im crying looka t his

some people couldnt eveb do this choreography if they wanted to

[shy pecan]

sleep and start over the next day

or sleep and try to fix it the next day

[atomic light]

objectively bad advice

source: this is my third day

[shy pecan]

how are they supposed to move

[atomic light]

like pool balls that dont slow down + have elevation (with gravity)

[shy pecan]

show sphere trace or whatever does the collision

[atomic light]

i just have a sphere mesh

[faint pasture]

Show any code that modifies their velocity or adds forces to them

[atomic light]

left is the spawner, nofriction_pm is on the walls and the spheres while the one with no restitution is only on the floor (dont want more than 1 bounce), and right one is sphere_bp that right now does nothing useful

[exotic quest]

alright so

how would i save the default speed?

[faint pasture]

what are you trying to do here?
When does the orientation of a ball change?

[faint pasture]

make a vector variable, name it, set it

[exotic quest]

uhhh

[faint pasture]

https://docs.unrealengine.com/4.26/en-US/ProgrammingAndScripting/Blueprints/UserGuide/Variables/

[exotic quest]

could i just store it as float?

[faint pasture]

yeah sorry it should be a float, correct

[shy pecan]

why are you setting velocity on tick, do it on beginplay

[faint pasture]

Reasons but he's doing it wrong

he wants the speed to be constant

and it wasn't behaving before

[exotic quest]

so do i want a namedfloat?

[shy pecan]

set velocity to current velocity normalized, multiply that by 500

[faint pasture]

#blueprint message

Been there said that

[atomic light]

the orientation of the ball should change on collision, it should face wherever its going

[faint pasture]

show your code for that

[atomic light]

it doesnt do that yet

😭

[faint pasture]

then why are you suprised it's not working

just do what we're saying and it'll work

[shy pecan]

🫡 godspeed

[atomic light]

because i just realised it after you mentioned it that the rotation should follow the velocity

not the other way round

[faint pasture]

ignore rotation

it doesn't matter

[exotic quest]

ok i once again need help bc i dont know how to do this

[atomic light]

orientation*

[faint pasture]

@exotic quest did you read this

[exotic quest]

no because thats for 4.26 and also because reading the docs usually just confuses me more

[faint pasture]

read it

its not like the concept of a variable has changed

make a float variable. On begin play, save the current MaxWalkSpeed to that variable

then when you press the button, MaxWalkSpeed = Variable/2

[exotic quest]

like this?

for the base speed that is

[faint pasture]

no

just make a damn variable. Read the linked thing.

[exotic quest]

ok jeez dont have to be hostile

[ruby cobalt]

Simple workflow/optimization question.

See here, two similar events will update a different member in the same struct. I then use that Struct to update a component.

Those events (more than 2) will likely all run at the same time. So I only need to update the component with the struct value ONCE after all the events have run.

How do I set that up?

(the custom events do interp so this might run at every frame while active.. hence why I want to clean that up)

[faint pasture]

What percentage of the time is this interpolation running?

all the time, almost never, half the time?

[ruby cobalt]

idk like between 20% and 90%.. sometimes it might be running for 30 seconds straight

[faint pasture]

I'd just tick and interpolate everything all the time probably

[ruby cobalt]

I also intend to use this workflow like.. a lot.. for hundreds of parameters

[faint pasture]

BP only?

[ruby cobalt]

yeah bp only

so tick the Set Control Data..

when does event tick run? before or after the other events?

[wind badger]

Quick question, is there a way I can exclude objects from a post process volume without using custom depth? Because I'm using custom depth for outlines and it would kind of ruin it, my issue is that it's a hatching shader and when applied to everything light doesn't really work lol

[faint pasture]

what is Duration, is it different all the time?

[ruby cobalt]

Duration will likely be the same but can be different, I need that flexibility

[faint pasture]

What happens if you add another call while one is running?

Interpolate towards 3.0 over 5 seconds
1 second later:
Interpolate towards 5.0 over 2 seconds

what happens?

[ruby cobalt]

for this struct, usually the duration will be the same for all of the members when I launch something.. but the next time I launch it, they will be the same, but a different value than last time

[faint pasture]

What are you actually doing?

physical animation?

[ruby cobalt]

hmm i'd want the latest interp to take over

[faint pasture]

That's what'd happen right now anyway

If that's the case then it's doable with FInterpTo running all the time

[ruby cobalt]

yeah this part controls physics values.. which makes a bad example for this system since those wouldn't need to be interpolated as much.. but this system will apply to all kind of values.. material parameters, location, rot, etc..

i'm build an audio/visual instrument

[faint pasture]

This is very much NOT BP territory

[ruby cobalt]

to perform live visuals and adjust parameters on the fly.. like a synthesizer but it,s unreal engine

[faint pasture]

It'd be trivial in C++ and giga fast but anyway, I'd do it with a constant interpolation

is it all floats?

nah u said rots and locations

[ruby cobalt]

vectors.. rotators, transforms, colors.. floats.. that's about it

[faint pasture]

OK I'd do this

Struct
float array
rotator array
transformarray

color array

Then a speed array for every one of those

[ruby cobalt]

yeah I built different interp methods.. and so far they all do the job (kinda) but I'm still early and I will have hundreds maybe thousands of parameters so it's worth doing it clean

[faint pasture]

yeh 1 big struct IMO

SoA

[ruby cobalt]

what does SoA mean?

[exotic quest]

ok its a float variable now

[faint pasture]

Structure of Arrays

[exotic quest]

how do i set this to be the max speed

[faint pasture]

drag character movement component in, drag off it, type "speed"

@ruby cobaltI would have 1 structure with everything in it in some central location.
Each frame, iterate through everything and interpolate it

[ruby cobalt]

the plugin I use also comes with stuff like this, so it's not always custom floats with sub events..

[faint pasture]

Your interface can still use duration, just you'd turn duration into speed

[exotic quest]

and where would that be..?

[ruby cobalt]

so it,s better to just update everything all the time than check if things need to be updated?

[faint pasture]

show your component list for your character

[atomic light]

im gonna piss myself it actually worked

what did i miss the first 12 times i looked at that message

[faint pasture]

Probably, if it's mostly always updating anyway

[ruby cobalt]

I had bad experience with Speed.. since I tie this to sound event with specific duration.. it's easier for me to use duration

[faint pasture]

you still use duration, just it gets turned into speed.
Speed = (Target - Current) / Duration

[faint pasture]

Are you in the character BP?

[ruby cobalt]

and what's the advantage to using speed?

[faint pasture]

you need a speed for the interpolation

when you add a target value, you're changing a target AND the speed

[exotic quest]

ok and what do i do with that?

[faint pasture]

#blueprint message

[exotic quest]

ok

fuck didnt stay there

but its saying you cant connect those

oh nvm

it was using something to do with wind

[faint pasture]

@ruby cobaltI'd structure it like this

Struct Everything:
float array FloatCurrent
float array FloatTarget
float array FloatSpeed

Tick -> for each FloatCurrent -> FInterpToConstant FloatCurrent towards FloatTarget[index] at FloatSpeed[index]

UpdateTarget(index, target, duration):
FloatTarget[index] = target
FloatSpeed[index] = Abs(FloatTarget[index] - FloatCurrent[index]) / duration

Keep that same energy for all the other types like vectors and colors etc

[faint pasture]

you want the max walk speed

theres all sorts of speeds

[exotic quest]

this?

[atomic light]

@shy pecan @faint pasture it works now 🫶

i think the first time i read that "velocity = normalize(velocity)*500" message i also had the angle calculation above in the tick which messed it up

[exotic quest]

hey wait

[valid oyster]

Yeah I don't think there's even an edge case that breaks my environmental system 🥳 woo everything is perfect

[faint pasture]

the volumes?

with priority?

[exotic quest]

theres a node that just lets you set the max walk speed

[faint pasture]

yes thats setting that same variable within the CMC

you need to know what it was originally to set it back

[exotic quest]

ok this isnt working

[thin panther]

well first of all the top of that blueprint isn't connected to anything.
All you're doing is setting a variable to 0.7, then on cancel setting the cmc's walk speed to itself

I highly advise you visit the pins of #ue5-general and find the link to the official learning portal. It's the best resource to get the editor basics, and blueprint basics down 🙂

[broken wadi]

Maxspeed != Max Walk Speed they are two different things

[exotic quest]

i am aware

im trying to make maxspeed set the max walk speed

[valid oyster]

yeah, I made it without priority for now, but there's a priority variable if i ever need to use it

[exotic quest]

i figured out a significantly easier way to do the walk speed

[trim matrix]

does it work properly now?

I'm curious

[exotic quest]

slows me down, not speeding me back up yet

now it works

i had to have it on completed

not canceled

[valid oyster]

all of those are overlapping

[trim matrix]

so you ar ebasically setting a variable in the playter called 'max walk speed'?

[exotic quest]

no i dont think so

[valid oyster]

so if they have the same data asset they will not change the environment stopping the resetting of music etc

[exotic quest]

i think im just setting the raw walking speed

that the engine uses

[trim matrix]

okok that's good

but you wouldn't set it to 1 or 0.7(which is realyyyyyyyy slow)

[valid oyster]

if their data asset is different it will call set environment

[exotic quest]

ye its in the hundreds now

now to do sprinting, which should be exactly the same but with speed

instead of slow

[trim matrix]

yup!

[exotic quest]

oh and crouching

if i dont put a safeguard in to stop me from crouching while jumping, it should allow for crouchjumping, right?

[trim matrix]

Yes, you should try it to make sure it works properly as you want...

[wild sage]

Guys, is there any problem with what I did? Through an overlap of a component that is in front of my character, I return from this object an actorComponent that implements my interface (Interactible_i), then I cast this actorComponent to the Interface, and then I store this object in an array of Interactible_i,
called "InteractionTargets. Would it be better to cast it to the actorComponent type itself and store it in an array of that type, instead of an interface? The first print below shows how it is currently, and the second print shows the alternative I am in doubt if it's better

[valid oyster]

I'll likely refactor it to use priority only at some point

[feral moon]

Hi i have quick question. Im new into using blueprints in UE5. I created variable and i want to use it in another object. How can i do it?

[trim matrix]

you can cast to the other actor to get the variable

is the variable in the player?

[trim matrix]

any other questions?

[thin panther]

Check the pins for a great guide on blueprint communication

[feral moon]

I finnaly did what i wanted

thanks

and that was very easy xd

[feral moon]

i will check it ^^

[austere ravine]

Hello! Newbie here. Anyone ever have an issue where their macro library is not appearing for use? I've made sure to pick the correct parent class for the library. I've already tried resetting my program and that didn't fix it either.

Uh, I looked up the BP editor documentation and via Search i was able to find my custom macro so it does exist but the folder isn't appearing on the shortcut list "My Blueprint". Is this just an issue with 5.3?

[desert juniper]

Curious what you're using a macro library for

I've used unreal for years and never made created a macro

[austere ravine]

I'm going through a beginners course that's teaching the basics. I figured this woudl be nice so I don't have to retype or set up the same blueprints back to back if a repeat is ever needed I could use a macro.

[desert juniper]

A Blueprint Function Library is more commonly used

macros are useful at times, especially when there's multiple execution flows, but they're not the norm

BPFL: https://www.youtube.com/watch?v=DDJdhkzMxtw

[true valve]

When I hold right or left key (a, d), how do you get the info in animbp? It's not in velocity or rotation.

[austere ravine]

oooh, i see. I wonder if this course im following will mention that. Thanks for the link.

[keen widget]

If i like to store evry logic in 1 place, 1 big blueprint how laggy it can become?
does "collapse nodes"or "collapse to function" helps with optimization?

[desert juniper]

no. that doesn't help with optimization

https://stackify.com/solid-design-principles/

look at the S in solid.

[lunar sleet]

Very laggy in editor and you can’t realistically put all your code in one bp without constantly making your life more difficult than it needs to be

[valid oyster]

use a blueprint widget interface and python to create the BP 😆

that would be hilarious

[keen widget]

what if break everything to small functions and put all them in the main function library
would that function library be laggy?

[desert juniper]

You're going to have a hard time finding someone who's tested it because of how much of a bad idea it is

The link I sent earlier goes over common programming design patterns
SOLID is an acronym
The S insolid stands for the "Single Responsibility Principle"
It dictates that "A module should be responsible to one, and only one, actor."

[keen widget]

btw how to even debug function to see what varibles values right now?

[desert juniper]

I don't think you can in a BPFL

I've never tested it at least.

[finite hearth]

If I add a widget to an actor's viewport, how can I get a ref to that actor from the widget? Is that the owner, parent? Neither of these appear to work,

[lunar sleet]

Prly less but still, doesn’t seem necessary

[frosty heron]

Laggy as f. Takes like 6 seconds to compile too for me

[wind badger]

I used stencils, had no idea they existed apparently 😔

[frosty heron]

Pass in the actor to the widget when you create it

1. Create variable in your widget blueprint of type actor. Call it actor owner.
2. Make it instance editable and expose on spawn.
3. When you create widget, set the owner on the exposed variable

[exotic quest]

any way i could do some sort of inventory system like the equipment wheel from ac3?

[fiery swallow]

are you asking for someone to tell you how to make the inventory system from ac3?

[exotic quest]

Well not directly

Just asking if it would be possible to do a paused weapon wheel thing

And where to start in implementing it

[fiery swallow]

well the image you've shown isn't really related to inventory, it's UI. Are you looking to make a cool ac3 UI, or the ac3 inventory

[exotic quest]

Moreso the inventory rn, but I'd eventually like to do the ui too

[fiery swallow]

the UI is displaying what's in the inventory, but the inventory system itself likely doesn't know the UI even exists

does ac3 do something specific that other inventory systems don't do?

[exotic quest]

Well ye you can only have one of any type of item

And theres permanent items

Only one melee selected at a time in the quick menu, can carry like 3 different melees at once tho

At least that's how I remember it working on the ps3

[fiery swallow]

are you new to making games?

[exotic quest]

Extremely

If I sound like an idiot it's because of that

Tho I have a decent bit of web dev under my belt

[fiery swallow]

@exotic quest I see, the original question you asked can't really be answered quickly. If you like you can DM me and later when I'm available I can help you get started with your journey. It will be a hard place to start for a beginner though

[gentle urchin]

Inventories can be rough

[thin panther]

@exotic quest You should still follow my advice from yesterday and get on the official learning portal and start taking some official beginner courses. An inventory is a tall order when you're this new, and you'd benefit from the resources epic made specifically for people in your situation

Id ask in #materials
Material graphs aren't blueprints despite looking similar 🙂

[gray cradle]

Ah my bad

[random pulsar]

Homies,i have an interface ,i created an actor input there,and have firefly actor .I want to make this:when character overlap with firefly ,attach fire fly to a spring arm thats in the character

I have no idea how can i write this

In my character

I know i need a attach component to component,get class,get component by class and class is child of nodes,a branch but how do i connect them?

I tried this one and it does not work

Maybe i need the root of that class and then compare with static mesh

But this also does not work

[harsh coral]

quick question: I´m just starting out with blueprints, building a blueprint actor with tons several hundred skeletal meshes inside and I wanna control various visibility sets, animation for ALL of them, material overrides etc.
Its starting to take shape now, but the graph is getting pretty..long...its basically ONE long execution flow from left to right and everytime I insert another set of skeletal meshes, its just growing...

Whats best practice here to sort things better?
I still need to add comment boxes, but other than that...are there better ways to sort things?
Lets say I have several sets of meshes that are all referencing the same assets and then I just wanna join them in the end to have stuff like animation and material overrides applied to all of them...
Is there a way to NOt just have one long execution order graph?

[gentle urchin]

Wrap them in functions at the very least😄

[harsh coral]

Actually just found a youtube video that has a ton of good tips...:)

https://youtu.be/4D5UfHZx_qU?si=tvm1SnHVgZ4EZ3HR

[gentle urchin]

Tip 7 😉

[harsh coral]

quick question again...when would I collapse nodes into a function and when would I just collapse nodes?

[gentle urchin]

If its purely a cleanup thing and never gonna be called again,

Collapsing can be fine (altho i dont likenit at all)

Otherwise functions 🙂

Functions cant be latent tho but thats usually not an issue

[harsh coral]

Hm, if I collapse to a function, I get an extra "target" pin, thats a bit irritating...don´t know what to do with that.

[gentle urchin]

Nothing

Unless called from elsewhere

[dry sleet]

It's just there so you can call the function on another instance of the class, if you want to

[gentle urchin]

Then you put the reference there

[dry sleet]

If left untouched it defaults to "self" which is fine.

[agile moss]

Can anyone tell me why this doesn't work, please.

[gentle urchin]

Got no target

Its not a magical broadcast thing

It needs a reference, and it needs implementation on the reciever

[agile moss]

Ok, set the target to BP1. What do you mean by implementation on the receiver?

[gentle urchin]

Bp1 must implement the interface

And that exact function

[agile moss]

Ah, I think I know what the problem is, thank you

[mild valve]

I want to thank you for your hint, you inspired me to totally rethink how I can handle thousands of visual actors on screen which are not actors naturally. Now I'm able to draw 5000+ drones in one frame without serious performance hit utilizing ISM + my own way how to handle all of that in blueprints entirely without even touching C++

[supple kiln]

I want to cast to a Notify Blueprint inside my Character Blueprint, does anyone know what I have to put into Object?

[gentle urchin]

Why would you cast to a notify bp

If the notify contains info that the pawn needs to know about, it should be passed along with the event call

[gentle urchin]

Now add animation control through per instance data entry in the material, and you're good to go !

[raven mantle]

Hello, can you help me ? i have an issue with my inventory problem

the findslot function is used to know if the item is already present in the player's inventory, for each element in the player inventory (content) I retrieve the item id and compare it with the one to search for, and return if the item is found in the inventory

But i have an issue "infinite loop"

[mild valve]

unfortunately it won't work because of how I made this. You see, I'm actually moving instanced static mesh component, while it moves - I add drone mesh instance when needed. After that I calculate when it reaches "end destination" and move instantly position of component to the previous drone. That way I stop after some time adding instances, I also don't remove them and so on. Problem is if I add animation control - after instant shift of component animation jumps and bugs, well it's not actually bugs, just because of the shifting, state of previous drone become state of last drone, and because of perinstancerandom this will be different which will cause visual artefacts

the way I did this to move entire component and not instances itself to avoid for loops which are very slow in blueprints, and also don't spam add/remove instances

[gentle urchin]

You should be able to have a 5k loop in bp without to much issue

But can ofc move that specific part to c++ for some gains

Sounds very rigid, the way you've done it

[thin panther]

Except for the 1000 iteration limit by default :P

[gentle urchin]

Isnt it 100k?

[thin panther]

No

[gentle urchin]

It cannot be 1k

[mild valve]

tested in 5.3.2 just yesterday, it's about 20 000 now

[gentle urchin]

No way

[mild valve]

after that it says "infinite loop detected"

[gentle urchin]

Every exec in the loop counts as 1

Afaik

So if its doing 2 things, you half the loop count

[thin panther]

You can up this of course, but a loop larger than 1k of already consider a C++ candidate tbh

[gentle urchin]

I dont disagree

[thin panther]

Iteration is one of the pitfalls of bp

[mild valve]

that's why I avoid iteration through thousands of instances when I can move the entire instance holder instead. And because I don't know C++ at all 😄

[thin panther]

No time to learn like the present :P

As long as you're aware of the drawbacks, approach however you see best

[supple kiln]

I'm making a Vault/Mantle system.

I need to let my character know that he can move by turning a Boolean to true inside the Character Blueprint after notify event is triggered

So far I got to do this inside the animnotify blueprint which I think is not suitable.

[mild valve]

I do understand the pitfalls of blueprints, but I love them so much that I just can't skip them. Learning C++ for UE is still not an easy task and will consume a lot of time, but yeah, sometime I will need to do it anyway 🙂

[gentle urchin]

If you focus on doing a single thing in c++

[thin panther]

They really are quite amazing

[gentle urchin]

Its usually very achievable

The very most basic thing

Declare a few variables

[mild valve]

after all, if it works like intended and not making your PC a microwave who cares what was used to create it 😄

[gentle urchin]

Make a basic loop

Add a lerp

And update the transform array

Done

[supple kiln]

Are you talking to me?

[thin panther]

The only thing I'd say that might be advisable is taking odd times to go through a chapter of learncpp.com passively

[gentle urchin]

No^^

[supple kiln]

Ah

[mild valve]

is C++ a good thing for loops? I just don't know, how good it will work if for example it will just iterate through for loop from 0 to 10 000 in one frame?

[gentle urchin]

Its awesome

Ultra fast

Its like speed is a thing of the past

[thin panther]

You could loop a million in c++ and barely feel anything

[mild valve]

hm, interesting, might consider to switch one thing to C++

[thin panther]

In a lot of cases C++ can be up to 100x times faster if not more

[gentle urchin]

Do it

[mild valve]

wow that's sounds nice

[gentle urchin]

I dare you

Bet you could have it done by the end of the day

And be surprised by how easy it was

[mild valve]

and what about blueprints nativization? It won't help in such cases as for loop in BPs?

[gentle urchin]

Deprecated

[mild valve]

oh

[gentle urchin]

I spent 5 years in bp only

Then started touching c++

And maaan

I wish i dipped my toe sooner

Way sooner.

[thin panther]

Yeah nativisation never really worked and got removed

[mild valve]

I've been programming on javascript years ago but man, when I look at C++ I'm just scared, it looks way too strange to me 😄

[thin panther]

Learncpp.com is a good resource. Stop just before the chapter on exceptions.

It's a lot of reading and doing, but if you passively take it slow it will be a breeze

[gentle urchin]

Once you get the hang of the syntax

[mild valve]

thank you

[gentle urchin]

Its gonna be alright

[frigid summit]

hi guys why my camera zooms in when the sequencer is finshed

[thin panther]

When you're a little more familiar with the language itself, there's a top pin in #cpp that details a bunch of the traps epic leave in.

(By default they leave a lot of things enabled and accessible that can nuke projects.

Side note: source control. Use it now if you aren't already)

[gentle urchin]

Booby traps

Ensures you know what you're doing /jk

[mild valve]

thank you again, will note that. Of course I'm using source control, even thinking about my own NAS to setup just to skip cloud

[thin panther]

phew

for what it's worth you don't even need a NAS

your remote can just be a different folder or drive partition

[mild valve]

I need it for more things also, not only that, that's why I consider it 😄

[thin panther]

then that makes sense :D

There's also a great breakdown on blueprint performance, third pin on this channel 🙂

Again, don't worry too much if it isn't causing you problems, but it's a super awesome skill to have and unlocks so much more scale and engine features

[mild valve]

Yeah it's just I picked up a fricking crazy size of the project that I want to create, working about 7 months on it already +- in my free time. And I want to reach something like early access phase to actually make this project my full time work after which I can dedicate more time to things like C++ and so on 🙂

[frigid summit]

plz help : (

[thin panther]

I wish you luck in your journey 🙂

[mild valve]

thank you 🙂

[mild valve]

from what I see you instantly shift your character after sequencer ends, that's why camera might move, if you want more smoothing use "set view target with blend" to shift between sequencer camera and player camera

[supple kiln]

Got it, thanks so much for the help!

[fair pecan]

Hey @gentle urchin!
Just want to get back to you in regards to the DoubleJump/Launchpad-issue you discussed with me last week. I was able to fix the problem the other day without going into C++. Felt really nice. But I want to thank you again for taking the time talking to me about it! 🙏

[harsh coral]

Ok, quick question: I have a blueprint with hundreds of skeletal meshes...is there a way to create a functionality similar to level instances, where there is a button called "EDIT" that "opens" the level in the editor, so I can select single assets inside of it?

[spiral fox]

Hello everyone
I need guide how I can make this interaction system when mouse move like video pouch and then camera.

[gentle urchin]

Nice! How'd you solve it? 🙂

[fair pecan]

First image is inside CharacterBlueprint and second is inside the Launchpad : )

Launchpad Casts to CharacterBP etc

[gentle urchin]

Oh

so you went for incrementing JumpMaxCount

instead of reseting current Jump Count

[fair pecan]

Haha yes, I realize it might b a bit of a scuffed solution. But thats my skill-level atm lol

[gentle urchin]

Only issue i can imagine with that is

you somehow miss the part where it resets jumpcount to what it should be outside of launchpad space

so lets say you had 13 launchpads

and somehow lands on something that doesnt reset the max count

you run around with 13 jumps x)

[fair pecan]

Haha that is true. But I believe the nodes in the CharacterBP would solve it since it is "On Landed" and it reverts back to 2 jumps if Double Jump is unlocked

[gentle urchin]

I see ^^

[fair pecan]

Unless I make the player land in water or something

[gentle urchin]

Heh

[fair pecan]

Then I'd have to make additional solutions ofc

[gentle urchin]

just a hypothetical

[fair pecan]

Ye, good heads up!

[raven mantle]

Can you help me understand this error? I understand its meaning but do not understand its function which is the problem

[gentle urchin]

show the function/logic

infinite loop, so you hit the infiniteLoopDetectionTreshold

[raven mantle]

its for an inventory system, find slot detect if item is already in inventory, if true i add one , else i give a new slot

[gentle urchin]

your false on the second pic should not be connected.

disconnect that exec

[trim matrix]

and that's where cpp comes in place

[gentle urchin]

you're also doign a while loop pre this loop and the other loop

sounds kinda rip

not sure why its a while loop in the first place?

makes no sense to me.

there's nothing to "while" wait for

[raven mantle]

now i have this ?

Do you think that the first while loop is of no interest? I follow a tutorial 😅

[gentle urchin]

yes the while loop makes 0 sense

If its from the tutorial

i'd seriosly reconsider

[trim matrix]

well if there's no stack, he creates one and then it loops and call the addToStack function

[gentle urchin]

so the whileloop is there for if you add several unstackable items ?

why wouldn't you handle that in the CreateStack function if so

[raven mantle]

I'm a beginner, I'm not copying 100% of the tutorial, it uses features that don't interest me so I'm just getting inspiration, it's likely that the modifications I made made the loop useless 😅

[gentle urchin]

If you add 100 apples, and they are stacklimited to 20, then CreateStack should create 5 stacks imo 😄

and if it doesnt, then why is there a quantity input on it ?

[raven mantle]

i dont use a stack limit

[gentle urchin]

inconsistent imo

[trim matrix]

you should delete the loop and place the function addToStack after creating a newStack

[frigid summit]

oh ok

[raven mantle]

i use a weight system, the stack is unlimited, juste i check if the item already exist in inventory, if exist i add the new item to stack, else i create a new 😅

[trim matrix]

.

[raven mantle]

why addtoStack after a new stack ?

actually if slot not found, i create a slot and add item to it, else if slot exist the item are add to the stock

[gentle urchin]

Id just let the create stack add directly to the new stack

In the same loop

So instead of the hardcoded 1 inputz connect the quantity from the calling function

Same with add to stack

You want the input Quantity connected.

[hidden pecan]

When I try to open the default unreal walk animation blueprint unreal crashes this is version 5.3.2 by the way

[raven mantle]

How can I check if the element has been added to the array content?

actually this function doesn't work, nothing to print

[raven mantle]

yes, its for test

[steady night]

hi uhm

https://gyazo.com/b1805b2899ba021075187a885f613859

need help, how would i linetrace this ?

any suggestions ?

[frigid summit]

i think multi sphere trace or sphere trace by objects would ve do it

[steady night]

well yeah more of the curve,line start-end points im after

[gentle urchin]

Multisphere

Filter by angle

If its really that accurate (doubt it)

Is just do the multisphere

Probably just one frame as its so fast anyway

[steady night]

aye

https://gyazo.com/67d4593a0fbc9b40a367f6959ad6f628

i mean i think is good enough right ?

[gentle urchin]

Ye

Plenty

[untold fossil]

Hello. Can someone help me figure out how to align an actor to the surface of a terrain? I've tried countless tutorials but for some reason for me it never works.

(recording some stuff to show the issues, gimme a few mins)