blueprint

[trim matrix]

if u place those nodes

the final output is a rotator

which u can plug into ur camera's world rotation

@snow gazelle

[compact vapor]

if there's 2 separate BP's both with code in the event tick, do those 2 events get multithreaded?

(wondering if having several different "gameManager" BP's all with event tick would help with performance.)

[lunar sleet]

No

[trim matrix]

what's the use case anyways?

[lunar sleet]

Not in the true sense of multithreading anyways

[compact vapor]

calculating weapon velocity per frame
I want debug info but dont want the debug code to slow down the actual code

[lunar sleet]

If you have perf considerations, do it in cpp

That allows multithreading to begin with

[compact vapor]

will just the act of C++ speed up operations like this?

[lunar sleet]

Yeah, bp is a bit faster now but per Epic it was 10x slower not too long ago

[trim matrix]

it will speed up everything 🙂

[compact vapor]

I am taking a C++ class in college right now and were doing the basics.
how different is C++ in UE5 compared to some of the stuff you would expect to see in a C++ class in college?

[trim matrix]

uhh, it'd be somewhat a rocky road for u i guess at first

but you'd get used to it after a while

[lunar sleet]

There are resources in #cpp and a crew that knows their stuff in there

[mild ibex]

I might be doing this wrong but how can i use a render target in an editor utility widget to update an image? I've tried a couple of things already and creating a static texture straight up crashes my project every single time, regardless of the target being square / a multiple of 16

[compact vapor]

it seems like UE5 C++ has a workflow associated with it.
would you recomend just starting right away with C++ in UE5 rather than do a bunch of beginner C++ stuff in general

[trim matrix]

no start with general C++

[compact vapor]

ok

[trim matrix]

u gotta now the basic concepts

like classes and stuff

[snow gazelle]

I'm sorry, I'm not being able to figure it out, would you be capable of sending a printscreen of an example or something?

[compact vapor]

if i get up to the point where I can cerate custom C++ classes and create some methods for those classes, would that be considered an "advanced beginner" level of understanding?

[trim matrix]

it's the bare minimum i'd say

[trim matrix]

Okay, do you have ur event tick free?

No code there I mean

[snow gazelle]

yes

[compact vapor]

@lunar sleet So Just to clarify, It seems like the Get all actors of class is not supposed to be used in the event tick.
If I hooked this up to an event tick in a separate blueprint actor, that would not make it any more optimized?

[zealous moth]

Honestly, play around in BPs to at least get a visual intuition of how stuff works in programming. C++ needs a header and a code which you don't see in BP however you can create a simple C++ class and play around with it. In UE, they also create example functions for you to play with

[lunar sleet]

It depends on the use case but there are usually better ways

[zealous moth]

is there a reason you want to get it on tick? It's not expensive but kinda weird

[trim matrix]

drag ur camera component into the graph and out of it get the forward vector

Once u get the forward vector, draw out RotationFromXVector from it

Now again out of the camera make a new node SetWorldRotation

[compact vapor]

i call this a "DataStreamedBillboard" BP

it is a 3x3 grid of text renderers and by using it's custom event, you can display data on a specified quadrant if you will
This is super useful for me to debug and see multiple pieces of data at once.

I want to stream data to my billboard every tick of the current weapons velocity.
I don't want to bloat the event tick of the character because it already has a bunch of stuff so I thought I would just manage an event tick for displaying the billboard in a separate blueprint

But apparently it is not going to optomize things.

[trim matrix]

and connect it to Event Tick

[compact vapor]

(thats the meat and potatoes of it)

[zealous moth]

ok........... weird usecase

[snow gazelle]

in the set world rotation block the z coordinate is the yaw, so i gess thats the one i need to use instead of x, correct?

[trim matrix]

no, don't block anything

[snow gazelle]

so, something like this?

[trim matrix]

sorry, i got my sh*t mixed up

u want to be setting the spotlight

not the camera rotation

and as for the rotation, now that i give more thought into it, setting the forward vector would act the same as setting the rotation 🙂

Which means for now u can just do FollowCamera->GetWorldRotation and plug that into the spot light

[snow gazelle]

well, when i use the spot light has the set target in the world rotation block it just stay always in the same direction

[trim matrix]

pls show the tick again

[trim matrix]

Replace that get forward vector to get world rotation

and plug all the axis in (no blocking/breaking)

make sure the spotlight is attached to ur mesh

also

how u had it before

[dry pecan]

When trying to save a variable in a save object you don't need to load the save a lot each time right, only once and just with each change just save so when said variable changes stays?

[trim matrix]

@spark steppe u were right lol, getting the rotation of the forward vector is the same as copying the rotation over

just didn't notice that somehow

[snow gazelle]

Like this it points to where the camera points, but it loses the wobble

[trim matrix]

is it attached to the mesh?

[snow gazelle]

yes, the spotlight is attached to the head of the character

[spark steppe]

i would consider faking the wobble anyways

you could take the character velocity, get the vector length, multiply it by some scale factor and add that to the pitch with some spring solver

[trim matrix]

https://docs.unrealengine.com/4.27/en-US/BlueprintAPI/Math/Rotator/Lerp_Rotator/ get this node. For A do Spot Light->GetWorldRotation and for B what u had just now plugged into set world rotation. Check shortest path and set the alpha to like 0.3 for example. Connect the lerp output into setworldrotation

[snow gazelle]

I can try to use that block, but i will probaly take a while to learn how to use it

[trim matrix]

It will make the spot light lag behind a little

Which one? The Lerp?

[spark steppe]

eventually even a spring arm with camera lag activated works? 🤷

[snow gazelle]

yes

[trim matrix]

In this case it makes the spot light turn from its current rotation to that of the camera

based on Alpha

for u the Alpha part here means how fast it will follow the camera

It works on a range of values between 0 and 1 (where 1 is full speed)

[trim matrix]

yup

but it wouldn't give the exact same wobble they are getting from it being attached to the mesh

[trim matrix]

faking the wobble is the most ideal, though making it "look good" is harder

[snow gazelle]

so, to vary between +10 and -10 from the original camera angle it could be something like this?

[trim matrix]

no

also recombine those back into rotators

as it's getting messy

set Alpha to be 0.3

and enable "Shortest Path" on Lerp

@snow gazelle

[snow gazelle]

i did it, and now?

[trim matrix]

plug follow camera's world rotation into B

and spot light->GetWorldRotation into A

screenshot it just in case after u do that please

[trim matrix]

👍

you can now test it

and see if it gives u the effect u wanted

[snow gazelle]

it is working, thank you

[dry pecan]

So I need to figure out how to make this display a variable from my save object rather than my Player controller, sugestions on how I can use this function so it will search my save object instead?

[trim matrix]

acces it the same way u ended up doing it in the collectable bp

[dry pecan]

So I gotta load the save file huh

[trim matrix]

idk how u did that there

[dry pecan]

We'll because I tried to do a cast to my save object since that's where the variable that needs to be read is, but it needs an object reference to actually work

[crystal granite]

Anyone aware of an issue/bug with Add Spline Component via a for loop gets the loop number clamped until you recompile the BP?

[trim matrix]

you'd need to do it in exactly the same way as in the collectible i guess

[dry pecan]

No all the collectible does is just add 1 to a integer in my player controller, that's it

[trim matrix]

What you are refering to is just related to ur for loop alone

prob

[dry pecan]

That get collectible count there to be specific

[trim matrix]

so the value from the controller doesn't get propagated to the save?

[dawn gazelle]

If you want to use the save game object to pull the value from, then you need to get a reference to your save object that you have loaded.

Eg. If you loaded your save game in your game instance and saved it into a reference, you'd need to get your game instance, cast to your custom game instance, and retrieve that variable, then you can read values from the save game object.

[crystal granite]

You can test it with a simple setup. Just one for loop followed by add static mesh component and add spline component. Expose the last index as a variable, set the relative X pos by index*a float, compile and increase the loop number. Static mesh components get spawned as expected but spline comps are clamped to the current exposed number until recompile

[dry pecan]

Yes that's exactly what I'm trying to do, it's also exactly why I can never tell if my count is being carried over since that specific number hasn't been read on the screen

[idle sandal]

hello, im trying to make a spline for some roads, i have a intersection piece and just a normal road piece, im trying to make it so at some points i can insert a intersection, i have it set up so u chose one of the meshs from the array, but whatever mesh u chose it makes the entire spline that mesh. i have it setting the mesh like this in the construction script, from my google searches thats how it seemed like people did it, any help would be appreciated

[dry pecan]

it does, but I sadly dont have her where it can be read from save since I need to see that the count does caarry over after I quit and go back into the game

[dry pecan]

how would that look, I tried as you suggested but it didnt do it

I need to refrence something, what should I refrence?

[hollow wharf]

what is the class of this BP?

[dry pecan]

Widget

[hollow wharf]

so you need create a widget

[dry pecan]

no this BP is a function of my Widget

[hollow wharf]

Did you know how to use function library?

GameTrainerSAve is what?

[dry pecan]

No GameTrainerSave is a savegame Object

[dry pecan]

this is a function in a widget that needs to read a varible in my SaveGameObject, Collectable

[hollow wharf]

Its already saved in a slot?

[dry pecan]

yes

[hollow wharf]

What if you use load game from slot?

Or you can get actor of class

[dry pecan]

ok, So I was able to correctly save and load my collectables, however when I start to pick up collectables in my next playtrhough they restart

[hollow wharf]

But maybe you can save and load in another way, instead of casting all the time

[dry pecan]

how?

[dawn gazelle]

The save game object that you want to reference.

If you've loaded it somewhere and saved the return value, that's the reference you want to use.

[dry pecan]

I was able to get it display, but now I'm facing the problem of my count restarting after pikcing up a collectable the nexct time I play

[hollow wharf]

Yes one good way is use function lubrary to create a reference of save object

[dry pecan]

well I already do have one

[dry pecan]

though the savegame object is created on begin play

[hollow wharf]

you can create all save functions inside of another BP, for example player controller. Would be more easy to call and choose the save function of you want

[dawn gazelle]

When you load the save game object, you're creating a reference to that save game object.
If you load the save game object again, you're creating a new reference to that save game object that isn't the same as the last one you loaded.
If you change a value in a specific save game object, you have to save that save game object if you want its values to be saved.
Any changes made to a save game object are only for that specific save game object.
Any time you read from a save game object you're reading from that particular save game object and you're not necessarily reading the saved value on the disk, or from any other save game objects you may have created.

[lofty rapids]

could you put in the game instance ?

so you would have it across levels

and could get it fairly easy

[woven turret]

Is there a more intuitive way of communicating between Blueprints in Construction Scripts? I have a simple time of day system that alters the directional light, etc when an enum is changed in a Time of Day Actor present in the level - I also have a bunch of Light Source actors that I need to automatically turn off via their own Construction Script whenever the time of day is changed, this should ideally happen live in the editor.

So far I've tried getting all Light Source actors in the Time of Day blueprint, and checking whether a Boolean is on or off, but the Light Source actors construction scripts refuse to update whenever any change is made in the Time of Day Actor.
I've also tried it the other way around, where the parent Light Source Blueprint looks for the Time of Day actor in the level, and does the same as above

[dawn gazelle]

This is why it's good to:

1. Load a save game and store the values you want from it somewhere familiar like the Game Instance.
2. Update the value in the game instance as needed.
3. Read the value in your game instance if you need to use it for calculations or display it.
4. When finally ready to save your game, get your reference to your save game object (either load it again, or create a new one) and update the values in the save game object, then call Save Game with it.

[dry pecan]

this is teh function that updates my save slot in my GI

[woven turret]

Example here, first image is the Light Source parent blueprint finding the Light Source actor in the level to check if the Night Mode boolean is on or off in that actor.
Second image shows how the Night Mode boolean is set within the Time of Day actor. This all happens in the Construction Script on all involved actors.

[dry pecan]

If I dont load then how will I get my refrence?

[ashen compass]

https://imgur.com/a/gPidpwS

I'm having an issue with the Cable component when attaching it to a projectile and a VR motion controller where it seems to phase phase between my hand and a position not far away, creating the not-ideal effect visible in the GIF above. Anyone have a clue why it might be doing this? I confirmed it's not the speed of the projectile causing this
I'm unsure if I'm doing something wrong or if the Cable component just isn't built for motion controls

[dry pecan]

I found the reason

I DID IT

[hollow wharf]

Anyone know why this widget of cursor is unchangeable after game starts?

Im trying to had a custom cursor on each map. but the first one to load its forever the cursor setted, no matter what

[fiery fog]

So, I've got an abstract C++ class that defines a method and is blueprintable. It just has one method they need to override. I want to be able to create some blueprint classes off of this C++ class, with each one of those having some variables that need to get set.

Then, in a data asset, I want to have a field where I can pick one of my blueprint subclasses and modify the variables.

I can't seem to figure out the right combination of what the field type has to be in the data asset to allow me to modify the vars. I can get it to display a dropdown of the blueprint subclasses, but it's not creating an instance of them in the details panel ( the base C++ class is marked as abstract, blueprintable, defaulttoinstanced, editinlinenew ).

[fiery fog]

I'm sure I'm just doing something stupid but driving me nuts.

[fiery fog]

Yar, was something weird with trying to use Developer folders and not having my classes show up.

[mild ibex]

Sorry for the scuffed image, but im trying to set a light components color value, i have an average of float values that are from 0-255, I just simply divide them by 255 to get a value range that is 0-1. After that I set the light color, but the light color that's set isnt even remotely close to the values being passed to it?

Console =
AVERAGES:
178.5
178.5
175.5

Light =
218
218
216

And I can see that the values im passing are correct as well.

And I would use the values with a 0-255 range but that doesnt work and anything over 1 just sets the light color to 255, because the actual range is the linear values, not the floats

[dawn gazelle]

Uncheck SRGB, you should still be able to feed in the 0.7 values and it'll end up coming out to 179

[mild ibex]

THANKYOU!!

wth, thats so weird

[edgy ginkgo]

I am having a problem with my behavior trees and I think I am just going about it in the wrong way, lmk what you think

so here is the basic tree, there are 3 different phases the AI can be in where he is wandering, hunting the player, and turning off lights in the room

They are all determined by seperate booleans

the wandering and the hunting work however. The turn on lights gets the AI stuck in that phase

[desert flame]

Maths question:
Im creating a new movement system using set actor location on a lerp, does using multiple axises actually make the character move faster than just using one? I know it does when you use multiple inputs to control the movement, like if youre moving forward+right itll move 2x speed. But its speeding up on all angles when i launch directly up and im not sure why since it doesnt have any friction.

[dawn gazelle]

If I'm moving forward at a rate of 1mph, then in 1 hour you'd expect me to be 1 mile forward.
If I'm moving forward at 1mph and I'm also moving to the right at 1mph, you'd expect me to be 1 mile forward but also 1 mile to the right, effectively, 2 miles away from where I started.

And yes, this applies to all axes.

[mental trellis]

You mean 1.41miles.

[dawn gazelle]

If I'm moving forward at 1mph relative to my starting point and I'm moving at 1mph to my right relative to my starting point, 1 hour later, I should be 2 miles away from where I started.

[mental trellis]

That is incorrect

If you move 1 mile forward and 1 mile right, you have moved square root of 2 distance from the start position

[desert flame]

So i need an system to recalculate it to devide by half if using other axises?

[mental trellis]

Take the total movement input and if the size/length of that input is above 1, then normalise it.

That will make the total length 1.

[mental trellis]

2m can be etiher the total distance or the resultant movement vector. It makes no difference.

Either way, it isn't 2.

[desert flame]

Wouldnt a clamp work better?

[mental trellis]

That is effectively what it does. If there is a clamp vector size now, sure, use that.

[dawn gazelle]

I wish I could claim that I'm drunk, but you're right 😛

[mental trellis]

But effectively what that will do internally is what I just said

[honest wraith]

My enum to string isn't working in the build but it is in editor

I defined it in c++

I wanted to get the Display Name to display in my UI but it returns the actual name in the build

[mental trellis]

You might find that meta data is only available in teh editor.

Specifically Meta = () and UMETA()

[honest wraith]

So I'll need a conversion function?

[mental trellis]

As a workaround you could do something like: cpp namespace YourProject { TMap<EObjectiveStatus, FText> ObjectStatusNames = { {OS_NotStarted, LOCTEXT("OS_NotStarted", "Not Started")}, .. repeat }; } (this would go in your cpp file)

[desert flame]

Seems to work, thanks for the help guys!

[mental trellis]

Then maybe a bpfl method to access them.

[edgy ginkgo]

Sorry to clarify my problem my AI goes to the last triggered light location but I want my AI to turn off all light's the player has turned on

this is my current method but it is simple

[dawn gazelle]

It looks like you're only getting the first found light. You'd likely need some additional logic to loop through the array of lights, checking if they're on or not and if it finds one that is on, that's your target light.
Once you've turned off the target light, you'd need to loop through again and find the next light that's on. Once all lights are off you'd set your blackboard LightsIsOn to false.

[edgy ginkgo]

okay here is a simple follow up question, if I am in an object's blueprint how can I get an array of all current actors

[tribal gazelle]

How can I reference the base actor of this class via a foreach loop?

It's GetActorOfClass

[edgy ingot]

You are still loading and saving everytime you want to update something...... Just look at the pic i posted . Number 5

[dry pecan]

oh no I already finsihed that

all good here now and hunky dory

[edgy ingot]

This isnt right

Just load once

Stop loading over and over

U will get bug

[dry pecan]

I know and I fixed it, now my collectables are now being fully counted

and I can display it on my screen

[edgy ingot]

Let me see your add collectable function

[edgy ginkgo]

I have updated the AI but this also has issues

[dry pecan]

I mean everythings working now, I really dont want to go back, I'm so close to finishing my project

[edgy ginkgo]

now the ai follows the light only for a split second before returning to wandering

[dry pecan]

now I'm doing the other things

[edgy ingot]

Im just asking to see it. I can tell u if u doing it wrong or not. Wether u want to fix it is up to you

[edgy ingot]

Yup still wrong

You will get problem later when u start saving multiple variables

[dry pecan]

But I already am though, both rare and normal and they are tracking perfectly

[edgy ingot]

Jsut replace the entire function with ,get game instance-> savegame, like in the pic i showed you if you want to fix it

Also you shouldnt save (savetoslot) everytime you get a score

[dry pecan]

doesnt work

[edgy ingot]

Cast to your game instance not your savegameobject

Cast to your GI first then call savegame

And get rid of the rest of the code

And dont svae everytime u get a score

[dry pecan]

question, I'm trying to get an integer from a parent actor but I'm not sure what kind of object I should refrence

[edgy ingot]

Picture this

1. U enter lvl 1 with ,0 score
2. You pick up some coind and get score.
3. U didnt finish and alt f4
4. U come back to lvl 1 but u still have the the latest scorem

So the result is u can keep playing over and over and keep incrementing the score

[dry pecan]

oh I was able to make it so that happens

[edgy ingot]

Not with the way u do it now

But u seems to know better so i give up

You literary save everytime you call the function, instead doing check points

[dry pecan]

arent you supposed to save?

[edgy ingot]

Have u played video game?

Tell me what video game u played

Something with save and load system

[dry pecan]

yes I have, and I understand autosave if thats what your getting at

[edgy ingot]

No

Not even auto saves

Give me a name of a game u played

[dry pecan]

Baldurs gate 3, I spam save and load every dice roll

[edgy ingot]

See how in baldurs gate 3 u save with a shortcut or selecting a slot?

Thats the checkpoint.

You dont want to kill a boss, get its item then alt f4 before saving. Then come back to the game with still alive boss and the ability to get the item again off it

You call save game to slot when the user press save game

Or when u want auto save to happend

Dont save it per goblin kill for example

[dry pecan]

how would that look?

[marsh pilot]

This is less of a blueprint specific question and more of a programming one in general, but I'm trying to figure out an algorithm on how to get all cells in a square field for dragging a marquee. Each cell has an X and Y value. What would make the most sense for this? I'm thinking basically going row by row and ending the row when the column value equals the end column, and having that inside something similar for each row until it reaches the end row. Thoughts?

Green is showing start and end cells in the example

[edgy ingot]

U go to the road in baldurs gate. U fight 6 goblin. U save the game everytime a goblin died. So u can get the item.

That will caise bug cuz i can kill 3 goblin, get the item. Alt fF4

When i play the game again, the 6 goblin still there but i already have the item from the 3 goblin i killed.

If they dropped key item, i can essentialy duplicaye the key item to infininite with the way you are doing the save game

[marsh pilot]

I'm also curious if others think storing these values would make more sense in a matrix rather than an array

[edgy ingot]

Base actor?

You are looping over a class

[edgy ingot]

Is this just to test? Cuz its not gonna work in real implementation
You are basically saying get a random a.i in the world snd get a random point light in the world

Dont use get all actor of class

Instead point to the actual a.i and light

[edgy ginkgo]

that was my attempt at real implementation, sorry I am new to this

[dry pecan]

so wait, you want my changes to be perimnant? like if I get a collectable it wonr be there next time?

[edgy ginkgo]

it is getting the actual ai,

The issue is I need the AI to check every instance of lights to see if they are turned on

can I do that by referencing one light>

[dry pecan]

but back to here, suggestions on what I should refrence?

[lunar sleet]

Nothing

Inheritance means you already have the variable, you don’t need to ref anything to get it

If you want, you can even make it show on the left panel from the gear settings -> show inherited

But otherwise you can just right click get

[frosty heron]

because you only have one ai in the world.
The moment you have multiple, your game break. That's what get all actor of class , get first index does. You just tell the engine to iterate all the actor you want and point the first one it find.

[lunar sleet]

In no particular order mind you

[frosty heron]

if you need to check for every instance of lights then you can use get all actor of class

Create a function like CheckIfAllLightIsOn
Get All actor of class (light) -> For each, get bSwitchedOn, if true do nothing if false break from the function and return false. On Completed return true.

[edgy ginkgo]

the AI is not being gotten by get actor of class though, the lights are and that is the issue, but the AI is being referenced from the controlled pawn

[edgy ginkgo]

this is a good idea

[frosty heron]

I mean getting your BP_Ai

[tribal gazelle]

What is the purpose of going through the gameinstance to then use savegame? Can I not just use savegame directly? (Because it's still working)

[zealous moth]

if your game crashes instead of corrupting the save file midway, you just crash the instance. The save file is intact

it is always ALWAYS better to work with an instance than the actual data

[tribal gazelle]

Ahh interesting. Thanks, I will learn how to use gameinstances to save things.

[zealous moth]

your best workflow @tribal gazelle is to use the save file as a way to store essential data and only to save when needed. Otherwise, you load the save file into the game instance and work with that up until you need to save. Then transfer the game instance data into the save file.

[tribal gazelle]

Ahh interesting. Can I ask, is using multiple save files bad practice? Or is that better than using a single save file? And I am only saving things when needed, like when the inventory changes, or when they pause (to exit) I then save their weapons/position etc.

[zealous moth]

file or slots?

[tribal gazelle]

Slots

[zealous moth]

you can create one save game and use multiple slots. I like that concept tbh so that I can load at different moments

[tribal gazelle]

Ok thank you very much for the insight.

[graceful zodiac]

If this event gets called again before it is finished, and the B value on the lerp is different (GetDialAngle is different), what happenes to the event that was originally executing? Does it stop? Does it finish using the old values while the new one starts with the values it had when it was called?

https://blueprintue.com/blueprint/ix975e4r/ As the image is a bit hard to read, here it is again

[edgy ginkgo]

So unfortunately this determines if all lights are on I need the ai to determine the light's location and move to said location then determine if another light is on then move to that location

[edgy ginkgo]

Okay Update progress on my AI that turns off lights

I heavily simplified things by giving the AI a pho second sight essentially

once their cone overlaps with a light is the light is on the AI will go to the light and turn it off

Fairly simple

However now the AI upon seeing a light flickers between the Hunt and the Turnoff light behavior tree constantly even if not seeing the player

here is the function to make the AI enter this mode which should disable hunt mode until the player is next spoted as well

[floral stump]

where is GetSteeringInput ?

[frosty heron]

only the function seems to be exposed

[floral stump]

how can I get the steering input?

[frosty heron]

I don't know what is SteeringInput

or if it's a thing

are you after a specific variable?

call the function and see what it takes

[floral stump]

function don't exist in UE4

UE4 chaos VMC

this is in ue5

[whole vector]

Quick question about blueprint - is it better practice to use a new instance of the "get variable" node every time I want to use a variable, or just have a single node that connects to everything? It's way messier with a single node, unless there's a way to hide node connections that I haven't figured out.

[frosty heron]

use the reroute node to make the spaghetti more bareable, when it's too far to reach just get variable

[heady crypt]

it's probably cleaner to use a new node each time, since the last node may have other connections and you may be doing multiple calculation on the thing you forgot about

just pretend it's C++ and you're just using your variable name as many times as you like

[whole vector]

yeah, I assume that under the hood it's basically just referencing the variable

just want to be sure I'm not taking performance with simple blueprints

[heady crypt]

I mean you're tanking performance doing most things in a BP over C++ some automation tests show 100x performance difference

[tribal blade]

Despite that, blueprints are still pretty fuckin performant

[halcyon vapor]

hi, I was wondering if this way to "add values" works or not

[frosty heron]

it's soo hard to read with that plugin

i will stick with vanilla

[mellow folio]

ANybody have any thoughts on how to get curved roads to affect navmesh in a curved way

ChatGPT says subdivide the curved road into a bunch of straight segments

that sounds not fun

[heady crypt]

you want the navmesh to be curved?

or you want the road to have a lower cost and navmesh uses it ?

[mellow folio]

Lower cost

[frosty heron]

ChatGPT tends to talk from their *ss

[mellow folio]

Whenever I try to add nav settings to any object, it just adds a square no matter what

[heady crypt]

if you're using a curve, you could always make dynamic meshes by segment and use that ?

still boxes, but it's correctly placed ones

[mellow folio]

😦

[heady crypt]

it's automated though

so it's not much work

[mellow folio]

Yeah but it would be wildly inaccurate

[molten tinsel]

Hey, beginners question, I m trying to understand communicating between blueprints, so I know several ways, there are event dispatchers, interfaces and casting.
I have:
BP_Player - which has event Killplayer (disables ragdoll)
BP_RespawnPoint - a point/points on map where I want to respawn player
BP_KillTrigger - when overlap, communicate to player and kill player.

So, I m not sure how to communicate between those in best way, without doing nesting casting. What I really need to do is:

1. If BP_Player enters BP_Kill Trigger. Start event KillPlayer inside BP_Player
2. BP_Players need to communicate to BP_RespawnPoint to start event RespawnPlayer
   and in 1. I can in BP_Trigger cast to Player right? But in point 2. From player casting to each BP_RespawnPoint sounds like something really heavy and bad practice. So, idk maybe interfaces are the way to do this more properly?

[frosty heron]

it's pretty bad if you have to do nested casting.
You probably want interface for that case

Try to break things into task and function

A gameplay manager handles the respawn and points

[heady crypt]

Respawn Point should be referenced in your GameState, so you could do an Interface to your GameState and ask it for the Ref

so there is no coupling

[frosty heron]

Nothing heavy btw

[heady crypt]

and since your Player is a child of ACharacter, just Interface call it, so also no coupling

[molten tinsel]

I don't fully understand the differences between all gamestates, instace, managers etc. But I guess I can store it in GameInstance?

[whole vector]

I think for my purposes the difference will be negligible. And if there are any critical systems down the line that necessitate better performance I can just redo them as actual c++ scripts.

[heady crypt]

yea basically, we're only talking about 0.001ms and 0.1ms

[heady crypt]

well most/all objects can just GetGameState() so if you have something you need everyone to use, then you can just add an interface to GameState, and make it contain globally accessible things, otherwise you can make your own "Manager" which is a singleton that everything can use, but they have a GameState system, so may as well use it 😉

[molten tinsel]

what's difference between GameState and GameInstance?

[edgy ingot]

Game instance is presistence object that is created when the game started and get shutdown when the game is shutdown.

Meaning you can access game instance as soon as you start the game. And since its destroyed when the game is shutdown you get to store data that needs to survive map transition

Docs should explain better

[trim matrix]

GameState is alive in the current level only, GameInstance is alive while the application is running

[snow gazelle]

Hello, I'm having a little problem with the main menu of my game, would someone mind helping me?

[marble tusk]

I think the answer is no, it would not work. If I recall correctly the Find node returns a copy of the value, so the top right Add node would be adding to the copy of the Struct's array rather than the one in the Map. I'm not sure if it's even possible to get a Map value by ref (at least in blueprints. I don't know C++ to know about there), so I think you have to use the Map's Add node to add the new Struct array at the same key.

[halcyon vapor]

yeah you are right, I attempted to do some debug print and found the same result, time to redo 6 different functions

[snow gazelle]

So, when i play the game normally the play button works just fine, but when i play it as a standallone game it doesn't, does anyone know why this is happening?

This is my blueprint

[heady crypt]

maybe there was no explicit connection to the map, so it didn't package it in your build

[trim matrix]

i think they ment the standalone play in editor

[heady crypt]

you have to add them to the build list, wait that's Unity...

[snow gazelle]

sorry, wrong blueprint, that one is of the pause menu, this is the one

[snow gazelle]

yes, standallone play in editor

[trim matrix]

It doesn't open the map?

[snow gazelle]

When i play it it opens the main menu, but when i press the play button it flashes black for a moment and doesn't take me to the main level

[trim matrix]

you should probably name those buttons...

[trim matrix]

what's this level instance load here?

[snow gazelle]

its for the pause menu

it doesent work yet, im still working on it

but i don't think it should have any affect on the main menu

[trim matrix]

What happens after it flashes black?

[snow gazelle]

nothing, it stays in the main menu

but wouldn't that make it always reopen the main menu, and not only as a standallone game?

[trim matrix]

nope, it wouldn't

[snow gazelle]

ok then, the pause menu has part to open the main menu, I'll check if that's whats doing this

[heady crypt]

your Pause menu exists inside your Main Menu map ?

[trim matrix]

that can't be it if u are not running it

[snow gazelle]

that's the only place i can remember that opens the main menu

but i already checked and the pause menu isn't causing it

[trim matrix]

@snow gazelle

[heady crypt]

it's not something silly like you renamed your level so it LOOKS right in your editor, but it's actually not really named that

it's just a redirector?

[woven turret]

Bumping this in case anyone is able to help 😄 The replied to message is a reply to my original message with context

I'm hellbent on trying to do this in the construction script, but if it isn't possible at all I'll just suffice for handling this properly after BeginPlay in the event graph with functions

[snow gazelle]

No

[trim matrix]

open ur command console

in standalone

and type open mainlevelnamehere

[snow gazelle]

how do i open the comand console?

[heady crypt]

`

[snow gazelle]

is that suposed to open a comand console above the game window?

[frosty heron]

~

[snow gazelle]

It's just that it isnt doing anything

[frosty heron]

beside number 1

[trim matrix]

either ` or ~, i can't remember the default key

[heady crypt]

should be ` by default

since ~ is shift+`

I think it's pretty hard to kill console access iirc

[woven turret]

If youre in UE4, you have to re-bind it if you're using a European keyboard

UE5's console bind should work out of the box though

[heady crypt]

right some people don't use US layout, and " and ' and ~ and ` and @ and a few other keys have weird crossover

[snow gazelle]

I am using unreal engine 5

I'm now trying every key to see if any works

[trim matrix]

lo

Edit>Editor Preferences

Keyboard Shortcuts

find something including the word console there and bind it to a key of ur choice

I'm not sure what its called

[snow gazelle]

I did it and it still isn't working

[heady crypt]

what you trying to do? your thing said you wanted to communicate "intuitively" ? like other than Blueprint Instances? but you want to do things in the constructor? so not in runtime ?

[trim matrix]

try setting the default map to ur main map for now

and then launch it in standalone

To see what it does

[heady crypt]

and make sure you right click content->fix up redirectors

just in case

[snow gazelle]

The game default map should option only says what map to open when first playing the game, correct?

[trim matrix]

Yes, which map to load when the game is launched

[snow gazelle]

It's just that now I have changed it to open the main level instead of the main menu, and now when i play it i opens the main menu and the play button works fine

[trim matrix]

https://tenor.com/view/loading-cat-thinking-wait-what-gif-15922897

[heady crypt]

now that you set it to open the game map, it's loading the main menu ?

sounds like you need to reload Editor

[trim matrix]

but now it works apparently

[heady crypt]

is that an IRL picture of @lunar sleet caught in 4k?

[snow gazelle]

wait, it only opened the main menu because i had the main menu map opened

[trim matrix]

can't say for sure

[snow gazelle]

now i opened the main level and it didnt show the main menu

[trim matrix]

what are your maps?

you have the main map, right?

and a seperate map for the main menu?

which one is a level instance?

[snow gazelle]

So, i have two levels, the main and the MAinMenuMap

When first opening the game it should first show the MainMenuMap level, and then the play button should take me to the main level

[pulsar pulsar]

Any pointers on holding items and then using them? In this case a weapon. I tried looking at the first person template but I can't quite translate it into what i'm doing, plus I'm using the third person template. Currently I have the TPC with an inventory component. The Inventory Component stores info on the players inventory. I then have a base class for my Items called ItemBase, I then have a object class called ItemObject, which gets created with the info of the ItemBase item when it gets added to the inventory etc. So what I've done so far is that I can drag the ItemObject version of the ItemBase item in my inventory into the 'Item In Hands' slot, which then adds the static mesh component of the ItemBase object into my hand, however, I've realized this is problably not the best approach as I'd have to create animations for every single individual item 🥴 Which caused me to look into IK anims.. Which in turn turned out to problably be alot more complicated. Youtube tutorials are either outdated due to the new IK system or they don't showcase what i'm looking for. Any pointers or questions to clarify anything is greatly appreciated

[heady crypt]

every Axe, Hammer, 1H weapon/tool probably has the exact same animation, the animation is played through the Character Mesh, and translated from the moving socket your static mesh weapon is attached to

[gritty wraith]

Also, can i fix this ugly code with class inheritance? (If all 3 input types were to inherit from class input_parent)

ive learned CI just recently and now i wanna throw up at every second thing i made in this project.

[pulsar pulsar]

I should have mentioned it's an AK47 lol

I thought If I get that part down, the rest would be piece of cake

[heady crypt]

then yes your AK47 animation is different to an SKS or a 308

[snow gazelle]

so basically it is working like this, if i have the main level opened in the editor and the mainmenumap as the game default map it opens the main level, if I have the mainmenumap level opened in the editor, and the main level as the game default map it works as intended

[woven turret]

Sorry, yeah. If there's a better way to do it in the construction script that actually functions unlike my method. Intuitively is just a flavor word because I feel like I don't understand the "proper" method to do this 😅

[pulsar pulsar]

Fair enough

[heady crypt]

It's up to you how you want to do your items and their information, do you want to make a Structure with a Class ref, and animation references and add them to a data table and do a lookup, do you want to make an AActor base to hold them that you can have handle their own animation information, or do you want to hard code every single weapon into a single character class, it's all up to how you understand and can implement them

but a semi automatic rifle and a shotgun and a lever action rifle and a bolt action rifle all need their own weapon animation and character animation

[heady crypt]

Construction is probably already completed in your content browser before you even move anything into the scene/view and have access to anything in the scene

so unless it's a gamemode accessible class like GameState etc, you won't be able to access a lot of things

[woven turret]

Thanks, yeah that's probably it with how unwilling the construction script seems to be to communicate with other actors. I'll just do it through event graph functions then 😄

[heady crypt]

Construction is helpful if you want to nodegraph make things/components and attach them to the actor instead of adding them visually as components

[woven turret]

Only reason I'm doing it in the construction script for the light sources is for live updates so I as the level artist of the project can better get a feel for lighting

[heady crypt]

like if you're building a survival game and you want to program in a snap point system you can make arrays of vectors or maps to spawn in collision volumes in spots and then make a child actor and inherit the system and tweak the arrays/maps so that it places all your collision volumes for you

but if you want to access other objects in the level/scene, then construction is kinda way too late in the execution hierarchy

[golden gull]

Hello, I am trying to create an interaction system where I raycast to see if I can interact with the object, should this logic be done on bp_topdowncharacter or bp_topdowncontroller and why? Thanks!

[keen widget]

trying to make a very simple Pure function that's just print whatever its plug in to it
but it doesn't work, why?
i know there is a pure print but its need that value go throu it for some reason, is there no way to make it print and that's it?

[scarlet timber]

pure functions get executed only if output node is connected to somewhere

[scarlet timber]

otherwise its not part of execution graph and how should engine know when and where to call it ?

[keen widget]

when value get inputed in? why not that way

[scarlet timber]

value gets inputted in the same way as I mentioned . when its encountered on execution graph

blueprint pure functions are just visually simplified but they are technically still a function that has an execution order

[keen widget]

is there "On value changed" node?

[steady night]

hey guys

scratch that

[trim matrix]

You'd have to call something when u change it

@keen widget

or compare it on tick to the previous value

[trim matrix]

A pure function get called everytime a node tries to acces its return value

[scarlet timber]

.

[trim matrix]

but only if the "owner"/"parent" node gets executed

and not if it's just connected

If there's no access attempt for the return value, the pure fun won't get called

[keen widget]

how to create wildcard input inside function ?

[trim matrix]

if you can't see it in the possible var types it means u can't use it for functions

u can do it 100% in macros, but idk about functions

[keen widget]

yeah but they did it here somehow

[trim matrix]

is that a c++ implemented function?

double click on it

see if it says reading c++ symbols

[keen widget]

dont opend

[trim matrix]

then its cpp

the func

u showed

[keen widget]

cpp❔🤷‍♂️

[versed sun]

c++

[trim matrix]

not possible in bps

@keen widget

[keen widget]

so my dream to make simple func for debug check what value is where cannot be made

[trim matrix]

can't u do that with a custom event?

@keen widget

[keen widget]

how

[trim matrix]

add wildcard input var to the event

[keen widget]

maybe there is a plugin in the ue store that just show what values are runing by the wire?

[trim matrix]

returning values with this approach will be stupit though

[marble tusk]

There is no value running through the wire if it's never called

[trim matrix]

the value out would need to be connected

to something else

with an execution pin

[golden gull]

How do I make this line trace have the same rotation as the player?

[heady crypt]

position (start)
get forward * float 100 + position (end)

[trim matrix]

ur code is fine

but u need to multiply it by a float

instead of vector

[heady crypt]

get out of here with your electric dreams plugin

[versed sun]

never

[heady crypt]

why is it not engine standard

[trim matrix]

eww...

[heady crypt]

lol

more crooked ends~!!! MOAR~!!!

[molten swift]

Anyone got an idea of what I'm doing wrong here? This code is for picking up objects and it workd when I pickup only 1 object, but when I try to pickup another object while having an object already picked up, the previous object drops to the ground

[versed sun]

Making and empty array and adding to it will always be index 0 i think

[heady crypt]

index 0, index 0, index 0, index 0.... index 0.

[steady night]

h ow can u increment an array size ?

[heady crypt]

in UE arrays are lists

so anytime you add it resizes

[steady night]

y

[heady crypt]

and anytime you remove, it resizes

wh(y) or (y)es or t(y) lol

[heady crypt]

are you trying to track the currently held objects in this empty array? if so, make an array, and then use Add Unique instead of making an empty array, and are you trying to have an array of Physics Handles? just make an array and add them to it in your variables list

[versed sun]

maybe ?>

[molten swift]

That worked thanks I don't know what my thought process was there😅

[heady crypt]

too busy thinking of "sweet baby rays" I guess

https://tenor.com/view/smokinmeats-zucc-zuckerberg-mark-smoking-gif-13167534

[molten swift]

I guess

[pulsar pulsar]

Yea I supposed so. Say the whole thing is a mesh, created several mesh parts into one actor, is the trigger and other moving parts accessable to animate then if the whole thing is a mesh? if that makes sense

[heady crypt]

sure, but then you want them all the be the same size and same spot, since you don't want the finger to snap to something outside of the skeleton, but you could always use a control rig to handle moving the finger to a point and having it follow the trigger

[pulsar pulsar]

wait it needs a skeleton?

[heady crypt]

no

the character

[pulsar pulsar]

aaaahhh

I've already created a new actor of all the parts, it was a pain in the arse to move it around in the viewport when it was in mesh parts lol

I was just curious how i could access the trigger mesh part once it's been made into a new static mesh

[heady crypt]

every mesh is a component in the actor so they are all accessible

you could make a base to put all your functions, or you could make every trigger/stock/lever action component so you just tell the parts to "triggerAction()"

[pulsar pulsar]

I'm not sure i'm following tbh. Once I've made a new SM out of the SM parts, I can't seem to find any option to access the individual parts again.

[heady crypt]

if you force it from multi meshes back to a single mesh you'll lose the access to individual parts, that's what skeletons are for

#animation channel might know a way to combine and make a skellie and have pivot points and access

[golden gull]

Thanks King 👑

[stark thunder]

Hey all. I have this material and I would like to change the dissolve parameter thorugh the bluepint of the actor. I tried it with dynamic material instance but I could not get it to work. How is this done?

[frosty heron]

you only create the material but did not change any of it's parametre

if your goal is to change the dissolve value overtime, use timeline

[stark thunder]

I am not sure how to get this parameters

is it change float paramter per name?

[frosty heron]

On your return value of the create dynamic material node, promote it to variable

[frosty heron]

then drag from it and type Set Scalar value

[stark thunder]

aah

that worked

thank you

[frosty heron]

Don't forget to use timeline

if you want it to happend overtime

[stark thunder]

yep 🙂

Another question. If I have an Interact Interface on an actor like a cube. Can I somehow Invoke an function on the cube if the interaction is finished?

Like a get owning actor or something

[stark thunder]

I added the actor as an input value in the interface

that worked

[wind spire]

can someone explain what absolute does (what options we are talking about) and what options can be written in a string?

[gentle urchin]

Any

?option=somevalue

Iirc

[mental trellis]

If you hover the mouse over 'absolute' does it give you a tooltip?

[true zealot]

Is there a way to get a coordinates location relative to an actor/component in world space?

I basically just want the coordinate 5.0 x in front of my component (relative to my component) in world space. I see functions to add local offsets and move components that way, but I think I'm missing the functions to convert between the two systems without actually setting anything

[mental trellis]

YourComponent -> get component location + (your component -> get forward vector * 5)

That should be in world space.

It will say on the tooltip of the node which space it's in.

If it's not world space (location) try another node.

[lunar sleet]

It’s a poltergeist

[stark thunder]

haha maybe

[lunar sleet]

Maybe try #lighting

[stark thunder]

good idea

sry

[lunar sleet]

Np

[serene wharf]

Hi! I am trying to create a scatter blueprint but i get a very weird error. The objcets i am trying to scatter gets placed far away from the acctual blueprint as you can see in pic 2. Pic 1 is the acctual blueprint

also the random line traces dosent use the entire box for random locations

[prisma delta]

Why not use PCG?

[serene wharf]

i want a more simple system that i can tweak myself

but in the future i will probably look into using pcg

[mental trellis]

You can tweak just about everything in pcg.

[trim matrix]

That's the world location

out of the hit

you'd need to convert it to the relative loc

[serene wharf]

this?

[lunar sleet]

That’s local to world I think

[trim matrix]

no. hitlocation-HierarchicalInstancedStaticMesh->GetWorldLocation

[trim matrix]

Is there a node like that?

[lunar sleet]

Yeah

[trim matrix]

lol

[floral stump]

if printcheck is passing some value to pure print in C++ , you can just print that value using print string function in any event graph

[serene wharf]

is this somehting?

[lunar sleet]

Inverse transform location does the opposite

[trim matrix]

didn't notice that

u can check it and it should work

with the previous setup

[serene wharf]

that works now, it didnt before lol

[serene wharf]

i still have the issue that the random points whitin the box is not using the whole box

[trim matrix]

wasn't checked here

[serene wharf]

i tested it earlier

[lofty rapids]

whats with the rediculous horrible quality ?

[trim matrix]

thank discord remix for that

[serene wharf]

this should get a random point whitin the whole box right?

[floral stump]

seems like snapshot of a compressed snapshot and recompressed it once again so forcing discord to compress it 3x and post it

[trim matrix]

what

[floral stump]

quality of the image is compressed by discord 3x

[trim matrix]

but why

[floral stump]

you snapshot it from already compressed image

and you posted again, so discord recompressed it

[serene wharf]

the scattering is still broken

the rocks only land whitin a small part of the box

[prisma delta]

I promise you, PCG is going to make your life 1000x easier.

[trim matrix]

you need to mutliply uhh

the box extent

by 2

because random point in bounding box uses half-size

[serene wharf]

whould you mind helping me in voice channel?

[trim matrix]

why?

[serene wharf]

easier to test things

and se result

if you dont mind

[trim matrix]

not rn, sorry

[serene wharf]

ok

[floral stump]

box extent * 2, connect the output to half size

[trim matrix]

yeah i've said that

they know how to multiply vectors

[trim matrix]

use what u had before

get scaled box extent

It will account for the case where you scale the actor

[trim matrix]

yeah

[serene wharf]

weird

[floral stump]

split output , only myltiply x, y

[trim matrix]

that's a good suggestion, but it looks like its outside the boundig box

or it might be just the perspective idk

[serene wharf]

i seriustly have no clue why this is not working

i did this btw

[trim matrix]

don't use the Z at all

leave it unconnected

[serene wharf]

ok

[trim matrix]

but it's still not it smh

[long schooner]

Hey can someone help me with my inputs? For some reason it stops working after I pause the game.

The controller do not get enhance input after the pause unless I hold a mouse button. at this point I have no idea what I am doing wrong

[floral stump]

what is the size of Amount that you are looping?

[lunar sleet]

Turn off use mouse as touch in project settings

Btw we have #enhanced-input-system 🙂

[long schooner]

Already did. however I am not sure if this is a common UI problem or enhance input

[trim matrix]

It's unrelated to it going outside of the bounding box

[long schooner]

Like I am not sure where to start looking into the problem.

[serene wharf]

the funny thing is i have done the scatter thing blueprint multiple times before but never have this many problems

[kind estuary]

I have AIController for the AI units, and PlayerController for the human character. They are very similar, except some extra logic for AIController.
So everytime i change something in the PlayerController i have to change int he AIController too.
Aren't these 2 supposed to inherit from one parent class? Or this is just normal.

[scarlet timber]

try flush inputs after unpause

[floral stump]

one more thing you can try, place few static meshes in the box, record their location, delete the static meshes and loop the recorded location and choose random from them and spawn stone

[serene wharf]

nope

that made it smaller

[long schooner]

doesn't work, I tried to flush them and even reflush them few seconds after cuz maybe idk it took a little frames

[floral stump]

you can store those locations in a struct data table

[trim matrix]

I might be stupid but it looks like it would need to be divided by 2

[scarlet timber]

There is a node Set focus to viewport or something like that

[serene wharf]

i give up

i will just use the folige tool

thanks for your time

[trim matrix]

Np

I'll still have to test that myself because I'm confused as hell

[long schooner]

Haven't heard of it. However it's still not working. I checked it on begin play and it actually blocks my entire input. I think my viewport may be busted? and only after refocusing it stops working

Edit. Scrap that, if I add .2 delay it works fine

[plush shuttle]

Hi guys I would like to know how I could make an system that Tilts the Player character slowly head down and gives an velocity higher as more head down he is

[long schooner]

Is definitly something with common UI, if I remove my parent widget I can regain normal control. Is like common UI input overwrites enhanced inputs'

[outer brook]

Hello fellas, currently I am dealing with a problem regarding my character’s mesh while it plays a montage (see video for reference).

The left mannequin is the simple preview of the animation dragged into the scene, that’s how it "should look like".

The right mannequin is my character, playing the same animations as a montage and triggered through the character’s BP (pressing space/jump). As you can see, the mesh gets deformed for some reason.

Now my question is: Why does the mesh of the character get deformed while playing the montage?

My theory is that the AnimationBP of the character does interferes with the montage, which is why I post my question/problem here. But I do not know what i am doing wrong exactly…

If needed, I would add some further images of some BP Code-Snippets and settings of the animations. But the code is realy simple and regarding the animations there is nothing special I did as far as I know (this project is relatively old).

In the character’s BP I just trigger the montage. In the AnimationBP, I created a StateMachine for the locomotion, air-movement, and on-ledge animations. Maybe i did just set up something wrongly or did miss some other things to change. Does someone has any clue where to begin with?

[trim matrix]

@serene wharf i know u're over this already but...

[serene wharf]

what did you do differently?

[serene wharf]

lol

[trim matrix]

maybe u had the box with some relative location offset?

[trim matrix]

because i can confirm this works for me

[outer brook]

Here is an example i would do:

Create a timeline and trigger it when ever you want to start your rotation. The timeline needs a "curve", which you can setup the duration of the timeline. I would recommend using "float" as the main variable-type for the curve because, as you can see in my BP-picture, you can use it for both, rotation (float value * SinD) and velocity (float value * VelocityFactor)

The benefit of the timeline is thse usage of a "timespan" (adding values for a defined timeperiod), and you can also use it in reverse for going back into the standard mode of your Character/Actor.

Don't get irritated by the "static mesh" in my example, it wa sjust the fastest way for me to make an example for you.

Hope this helped

[trim matrix]

lol x2

flabbergasted

[primal schooner]

How do you safely rename an asset? I renamed a GameMode asset, and now I have all kinds of problems. First, it didn't delete the old one so I had to manually delete it. But now when I go try and assign the newly renamed asset, the editor thinks its a reference to the old one:

Every time I try to set MainMenu_Entry, it just switches to _old

[trim matrix]

do fix up redirectors

[primal schooner]

How do you do that?

[trim matrix]

.

[low marlin]

do any of you guys know about ue5 ai

[plush shuttle]

Thank u awesome solution but one more question how could i get it working in the State machine So that it plays animations

[trim matrix]

for ai related questions, you'd prolly wanna ask in #gameplay-ai

[low marlin]

i did

[outer brook]

What are you planing btw.? How is your question related to the StateMachine? E.g. do you have an Animation in your SM which you need to be synchronized with the Tilt-Value in your BluePrint?

[plush shuttle]

Ok so I have had an super old game(it was from 2007) it was like an BASE jump Game I‘m trying to remake it but with better assets and all that new stuff now I need to find out how u can make the Falling system they used

[outer brook]

But i am still not sure how StateMachine is related to all that. Do you need a transition between 2 animations regarding the Tilt-Value? Or how does the SM belong to the Tild-Value?

[plush shuttle]

Yeah I would like to have an system that automatically changes animations when the player goes down headfirst and then to have an full 8way of movements

BTW you can see the game on YouTube it’s called BASE jump simulator pro edition

[primal schooner]

hmm okay so editor works now, but when I right click the .uproject and Launch game, it launches into a black screen. Any ideas what could be happening?

[trim matrix]

set the editor default map

[primal schooner]

The Editor startup map?

[trim matrix]

yes

[primal schooner]

yeah that's set

[trim matrix]

oh wait sorry

misread ur problem

[primal schooner]

oh haha no worries

[trim matrix]

i'm guessing main menu entry is some empty map that redirects u to the actual main menu?

[primal schooner]

no its the actual main menu itself, should look like this:

[trim matrix]

do u know how to open the console command?

[primal schooner]

not outside of the editor

its just ` in the editor right?

[trim matrix]

open it in the launched game and enter open MainMenu_Entry

see if it loads the map

[primal schooner]

oh wait it was working.. it just takes like 45 seconds to load the map. that.. can't be right can it?

[trim matrix]

i guess so

[primal schooner]

its like.. slowly popping in lights and stuff still. For something so basic?

[frosty heron]

Running standalone?

gonna create shaders and stuff

just package it

[outer brook]

Hmm... what you can do to affect your "8Way-Blendspace" in your StateMachine is to alter two Float-Variables (for "Roll" and "Pitch" of your rotation) in your AnimationBlueprint via your Character/Actor Blueprint. In your StateMachine you can attach these two variables to your 8Way-Blendspace.

Thi first image is an extension to my previous snippet. When you change the velocity value in your AnimBP, you can use that to alter the 8Way-Blendspace values like in the second image

[primal schooner]

Ohhhh is that what packaging does. Okay, yeah I see "preparing shaders, 4000+)" lol

[plush shuttle]

Thank u appreciate it

[kind estuary]

I have AIController for the AI units, and PlayerController. They are very similar, except some extra logic for AIController.
So everytime i change something in the PlayerController i have to change int he AIController too.
Aren't these 2 supposed to inherit from one parent class? Or this is just normal.

[trim matrix]

wdym?

if you're applying changes to subclass A, they won't propagate to subclass B

[outer brook]

Don't mix up PlayerController and AIController. AIControllers are meant for NPC's and are an extension to your AI's BP regarding everything movement related. A PlayerController is meant to be used for any Player-Driven Character.

You can see the NPC's AIController as an equivalent to the Third-/FirstPerson's PlayerController

[young meteor]

Hey

I made a hexagon PNG file, when I import it and try to use it, it is just a black square. Any idea why?

Looks like a hexagon when I open the texture up.

[outer brook]

Isn't the background of the preview-thumbnail black? So when you load an image like in your case, someone would assume the entire texture is black. Did you try another color for your hexagon just to be sure?

[young meteor]

A white just turns completely white instead.

Gradient full gradient 😄

Something is messed up with alpha information maybe?

[kind estuary]

I understand but its like, you have the npc and the human. The human, attacks, builds buildings and retreats.
But the AI controller also does all of that, plus some other things.

so basically i have a duplicate code

in the PlayerController and AIController

so everytime i change something in the player controller

almost always have to open the AI controller to do it too

Because they are very similar

the only difference is that the AI Controller is the AI and does some more things that are automated

[remote meteor]

Both those controllers are AActor and an actor can have a thing call ActorComponents

you can make your shared behavior into an actor component and apply to both of them

AControllerExtensionComponent for example

[dawn gazelle]

If you wanted to share functionality between an AI controller and a Player Controller, you'd do so at the controlled pawn level.

Eg. You can have Input Events on the pawn that a human would activate, but then you also need to have events that your AI Controller could activate on its own to trigger the same logic.

[lofty rapids]

why your uvs don't say zero ?

try another node

same thing just a new one

it should say [0]

[young meteor]

uvs? In the teture window or material window?

Never looked liked that for me before. On UE 5.0

[lofty rapids]

maybe it's just different version

5.2.1

[lofty rapids]

try another texture, see if just that one

i would also try a fresh material to see if it is doing it in that as well

usually it's best to narrow down a problem especially if it's odd

[outer brook]

Could someone look up my problem too by any chance?

[lofty rapids]

it looks like your jumping higher than the other character

[outer brook]

Yes because I am currently experimenting with MotionWarp-Plugin. But this still happens without motion warp, as plain "PlayMontage"-Function.

[trim matrix]

how do u make use of the Blueprint Debugger? Specifically the Watches section?

[marsh pilot]

Any tips on how I should handle the possibility that the 'Start' Index is less than the End cell so that the for each decrements by 1?

[young meteor]

It's all 3 materials, but it certainly is keeping some alpha information even though it does not look like it in the thumbnail.

[outer brook]

Ah yes, I had a similar problem in the past, Just work further like that. The Thumbnail can be irritating sometimes.

[trim matrix]

swap them if the other one is greater

use a select node or smthg

[outer brook]

Uh, is this related to my question? Because I am not sure what you mean

[trim matrix]

nah

[lofty rapids]

https://docs.unrealengine.com/4.26/en-US/ProgrammingAndScripting/Blueprints/BP_HowTo/Debugging/

[trim matrix]

where is it mentioned on that page?

[lofty rapids]

"Watching Values"

or your asking about something else ?

[trim matrix]

i thought they are for something else 🙃

debugging the execution time

but i guess u do that with the exec flow

[steady night]

Hey Guys i need help with a issue, im trying to "refresh" my inventory as of it now the inventory Size Array represents the Child Slot Index of the "uniform Grid"

if they array is
1=false
2=true
3=true
4=false
5=false

i wanna update it so

1=true
2=true
3=false
4=false
5=false

any advice on how :/?

[trim matrix]

that would have been so easy in c++

[steady night]

aye but this is Bp only >)

[trim matrix]

but for bps u gotta make two for loops i guess

have one set the values to true up to a desired index, and the other one setting the values to false after said index up to the last elem of the arr

[steady night]

hmm

mind making an example 🙂 ?

[lofty rapids]

are you trying to transform an array of booleans from that first set to the second ?

[steady night]

im trying to set all true at the begining of the arrays basicly

[trim matrix]

@steady night

[compact vapor]

I want armor with certain effects when you wear it.

should I learn GAS
or implements my own system?

[steady night]

hm

how would i get "last true"?

[trim matrix]

that's the last index you'd like to be true

[trim matrix]

here it would be 1 (you start counting array elem from 0, so 2-1)

[steady night]

hmmm

yeah but this wont fix my

erhm i gotta think about this for a min

[trim matrix]

u might wanna reconsider how are u storing the inv size

[steady night]

yeah thats what im thinking aboujt

[lofty rapids]

different way as well

[trim matrix]

never seen it done with bools like that, except if u want some slots in-between to disappear at runtime

mine is cleaner smh

[lofty rapids]

ya i'm still working on cutting down on all the lines, still learning

[steady night]

well yeah its my 2nd time doing a MP inventory system so obviously its not as it should be

but 10x times better then the first one atleast :p

[lofty rapids]

you also usually don't want to alter the array your looping through

but i think in this case it should work just fine

[trim matrix]

why?

[trim matrix]

but we are doing a different thing here

modifying existing elements and not adding new ones

[lofty rapids]

thats why i said in this case it should be fine

[outer brook]

Yes, adding/deleting from an array while looping is bad, bur altering values should be fine

[undone sequoia]

guys I need some suggestions I am trying to predict where my bomb will fall with this feature but its really moving a lot and it looks bad check video , green crosshair below plane is bomb cross

it is jumping like mad, any tips?

[trim matrix]

u could make it lerp to the next loc, but that would make it less reliable

[undone sequoia]

ye I thought about it

[outer brook]

Are you tracing the ground? Isn't the ground "uneven" (bumpy)? That might be the reason for the trembling.

[undone sequoia]

should be not like that idk I am using unreal engine function for prediction check image

😄

it is considering ground

[trim matrix]

it's always gonna be "jumping like mad" if u want it to be accurate i guess

@undone sequoia does it get better/worse if u change sim params?

[outer brook]

exactly. therefore @undone sequoia needs some substitude. Like... an invisible plane that gets traced instead of the ground itself.

@undone sequoia I see you are tracing for "WorldDynamic" which might be tracing the bumpy map of your level. As a substitude solution, you could create an invisible, but traceable plane as big as your map. After that, create another TraceChannel (In ProjectSettings > Collisions), e.g. naming it "BombPredictionArea" or so, and attach that channel to your new created plane.

Some downgrades would be that the hills wont be traced anymore, but for that, you could create some more objects like cubes, cones etc with smooth surfaces and attach them also the new created TraceChannel.

[undone sequoia]

what if I set trace channel to visibility

should solve it

[outer brook]

That would trace "everything" visible on your map, that would be even more messier

[undone sequoia]

but bomb should hit anything what is visible

I mean

if there will be plane above ground

it can hit plane

and kill

[trim matrix]

thats not the point

[outer brook]

uh i forgot... with "plane" i was refering the geometrical object "plane" (not the flying vehicles)

[undone sequoia]

ah true sorry

[lofty rapids]

is this on tick ?

[trim matrix]

seems like it

[undone sequoia]

it is

it should be visible whole time

smoothly moving over map

just found problem is in my velocity... which I am calculating when I put there forward vector its smooth

It getting some weird numbers, my velocity

my velocity output, numbers are weird I dont get why I calculate it right

1418 then 1420 but before is 1465

[outer brook]

@lofty rapids Here is another example without MotionWarping, just the plane "PlayMontage"-function of the character's BP.

My theory is that the StateMachine of the AnimationBlueprint interferes with the montage's animation...

Anyone knows how to solve this issue?

[outer brook]

Here is the StateMachine-Graph of the AnimBP

[spark steppe]

that's #animation stuff

[dry pecan]

whats the best way to call a custom event from a level blueprint?

[spark steppe]

none, why do you want to call something from the level blueprint?

[thin panther]

and what do you mean "call a class"

[dry pecan]

custom event I mean

[thin panther]

then you don't

in general the Level Blueprint is a piece of legacy from UE3, and now only really functions for quick level specific actions for game designers, like triggering a cutscene for example.

you wouldn't put gameplay code in it, and even it's legititmate uses are dubious, and will normally be better in a reusable class

[dry pecan]

tnen how can I essentially do this in my actor instead? I have a audo commponent in my level and I need to change the msuic when I start an event

[spark steppe]

make an actor of the audio component and add an overlap trigger (with a sphere collision for example) reference the audio component in your event system

[dry pecan]

no its a button press, I'm trying to make it so when my player interacts with an object to activate target practice the music changes

[spark steppe]

then make the button change the music

[dry pecan]

thats what I'm trying to figure out

[spark steppe]

make an variable on the button actor which can hold a reference to the audio component (the class type is visible in the details when you select the audio component in the editor)

and click the eye next to the variable name, then when the button is placed in the level you can select the audio component to store a reference

in the button use that variable to access the audio component and to change the music

[lofty rapids]

theres a clicked event

[spark steppe]

well, is it an UI button or a world object? (i've assumed the later)

[dry pecan]

I'\m trying to figure out how I can refrence my Music Player audio compoent, also World Object

[lofty rapids]

i saw button i immediately thought ui

[dry pecan]

how can I refrence an object in another objects blueprint?

[spark steppe]

in the blueprint you can't

in the BP you make a variable of the class, then with the actor placed in the level you can place a actor reference in that variable field

https://www.youtube.com/live/3iIAcOtPJZg?si=iyyBqdkvx1cAW8Md&t=1689

watch this and what he does with the TargetActor

best idea is to watch the whole video... since it's pretty much worth every minute

[dry pecan]

What is the Camera Shake class named now?

[tight pollen]

hi

I have a widget and in it I have 10 positions on the X axis, I want to check which position of these 10 is closest to the mouse cursor, how can I do it?

I use On Mouse Move

function

[spark steppe]

https://tenor.com/view/doug-maclean-nhl-hockey-stats-statistics-gif-13408391465163304912

[frosty heron]

@tight pollen you always ask weird question, I can't tell of you are trolling.

Arnt u the guy that want to do mmo with 3000 actors in bp. And also want over two thousands widget element?

[spark steppe]

this is so weird... i had to look it up... and it's "only" 1k widgets but replicated 😄

[tight pollen]

1k widgets... I've already dealt with that one ;p

[trim matrix]

So I have a while loop and I want to run the contents continuously, but looking stuff up, the reason why its crashing on execution is because it runs more than once per tick, I can't use a branch into a custom function with the contents like some suggested because I use delays a lot in this graph. Any ideas?

[tight pollen]

this question is normal, what's wrong with it?

[lofty rapids]

check the distance from the position to position of each one, probably not the most efficient but you get the lowest distance so that will the closest, for 10 it wouldn't be bad

[trim matrix]

DistanceTo each from mouse position, grab lowest

yeah

[frosty heron]

Hang on he has 1k widget in his wbp. Are u saying to iterate over 1k widget every frame?

[tight pollen]

no

[outer brook]

He mentioned "OnMouseMove"

But yet, if 1000 player move their mouse at the same time, it would be "every frame" alike

[tight pollen]

this is not related to it at all

[trim matrix]

This feels weird as well, using a while loop, but I can't really think of another option

[frosty heron]

Loops happend in one frame

[trim matrix]

I could put a big ass delay at the beginning I guess but jesus that is nasty

[lofty rapids]

are you running a while on tick ?

[frosty heron]

Putting delay not gonna do anything

[trim matrix]

I'm taking a continous input from a thumbstick, so it runs more than once per tick presumably

[outer brook]

You can use "OnGoing" instead of a while loop. You can set up your EnhancedInputAction, the specific button or stick, so that while "holding" the button it will trigger the following function as long as you are holding.

Don't use a while loop there

[trim matrix]

I guess I could hook it up to on tick, and just set the vars from the thumbstick inpout

[lofty rapids]

why are you using a while ? and not just a branch if it's continous

[frosty heron]

Loops happend in one frame, if the loop iterate the maximum specified limit. You will just crash

It's a blocking operation

[dawn gazelle]

Triggered should continually fire once per frame if you've set up a trigger for your input action correctly, so that in itself gives you a continual execution rather than using the while loop.
Any logic you want to block or change behavior can be done so by using a branch with a boolean.

[frosty heron]

Not gonna go to next frame until either the loop finish or u crash

[trim matrix]

I was under the impression that triggered runs only once while the button is held down, which is why I wanted the while loop

[outer brook]

Except for if u put a "delay" in it, then it will trigger one loop each frame again!

[frosty heron]

Triggered runs every frame

Every tick*

[frosty heron]

It will delay the inevitable

[trim matrix]

Gotcha, I have another issue then, I was under that impression because my BP doesn't seem to work when continuosly firing, it only really works when repeatedly triggering it, like by rapidly pushing and letting go of the thumbstick

[frosty heron]

If u put delay for 2 seconds then you will crash after 2 seconds.

[outer brook]

This depends on how you did setup your Inputs. You can change the behaviour so that it registrates when you are holding and releasing

[outer brook]

A loop stops blocking the tick as soon as you put a "delay" in it, e.g. delay "0.001". Not sure if this was only meant for For-Loops when i learned this but i assume this is true for While-Loops too.

[frosty heron]

I don't think that's the case. You are just blocking for the duration of the delay.

A lot of ppl misunderstood loops and tries to Put delay in their loop.

Try to print string in for loop (1 to 10) to test and add delay of 2 seconds. What happend is after 2 seconds u get 10 print string instantly within a frame

[dawn gazelle]

This is all a while loop does. Basically it continually calls the loop body output until something sets the bool to false, then it calls the Completed output.
Putting a delay in the loop body cannot change this behavior. It will continue to call the loop infinitely until the input bool is false, and if this is done for longer than one frame, it assumes that you have an infinite loop running, and causes the halt.

[spark steppe]

i think infinite loop detection works different (since you can raise the limit, so i guess it rather goes by iteration count)

[dawn gazelle]

For & Foreach loops are slightly different in that they iterate over a finite set. So long as you don't have logic that takes too long, they will execute within 1 frame and not cause the halt.

You're probably right Ben.

[spark steppe]

i'm not 100% sure, so unless you are, both might be true 😄

since i feel like i also hit the infinite loop detection with less iterations than set in the project settings

[outer brook]

here is an example of one of my inputs which i setted up in my InputMapping-Asset

[trim matrix]

I think I should probably explain what I am trying to do, because I have a sinking feeling that I am doing it wrong.
When the thumbstick moves, I want to trace from the thighs down to the ground, and solve for that in my IK.
The New Trace variable is used to trigger solving and lifting the legs etc. So, the workflow is simple here.
Clear everything at the beginning, trace down, set the foot location which is used to get the knee location later, and set the variable. I want to wait until turning off the left leg solving though, cause that way it looks like they are staggered. That's where I am really confused, delay seems to work differently than I would expect. thoughts?

[lunar sleet]

get rid of the delays

as was explained to you, on Triggered, they will not work as intended

[trim matrix]

Then the legs will move at the same time, which is why I want to figure out an alternative that does work. It looks unnatural

Makes sense why it was broken though

[lunar sleet]

you can prly use set timer by event instead

[trim matrix]

It also needs some delay either way, or else it is ripping the legs apart lol, its to fast

[lunar sleet]

.

[trim matrix]

Yeah let me take a look, i'll get back to you in a few

i'll try converting it to that

thanks for the tip!

[trim matrix]

I had a nice resource of how it worked a while back, but I can't find the link, is it triggered whenever an event is triggered?

[lunar sleet]

if you use looping, you can also clear and invalidate the timer by handle when you want it to stop

you can prly do this on Started instead so it doesn't reset the timer every time

[outer brook]

I just checked it out and you are right. It delays the loop and then loops it trough to the end.

But the interesting thing here which I tried to tell is that even though it is used in the TickEvent, it does not block the game. Instead it jumps over the loop for the delay duration and triggers it again afterwards. My misconception here was regarding the While-Loop. It does not seem to work with it in combination with the TickEvent since it returns an "Infinite-Loop" error.

P.S.: Just ignore the "DeltaSeconds" string printed to the screen, should be EstimatedTime instead lol

[trim matrix]

Shit I also did exactly that

[tight pollen]

i want Get Local Top Right

[trim matrix]

This also feels wrong tbh, I am trying to slowly go from 0 to 1 here, but obv this won't work, and its also messy

[trim matrix]

Is there not a function for that?

[tight pollen]

nope

[trim matrix]

thats really weird

[dawn gazelle]

You can make your own delayed for loop. Look at the insides of the For Loop and insert a delay before each call of the Loop Body before it calls the next iteration.

[trim matrix]

The event I use to start does not have an event output delegate, whats the solution here?

[lunar sleet]

so...inelegant 😛

[trim matrix]

I was thinking that to, but if it works, it works

[lunar sleet]

that's not how that works. you make your own custom event that does whatever you want it to do. you plug that into the event delegate pin

[trim matrix]

and as long as it's safe, i don't give a fuck lol

[trim matrix]

okay, so like this, whenever Completed triggers Set Timer By Event, it waits one second, then executes CustomEvent?

[lunar sleet]

correct.

[trim matrix]

Perfect, thanks

[steady night]

hmm

can someone refresh my memory

im trying to "If ANY is true" then true

what i can remeber the "or" is wrong

[spark steppe]

or is correct

[neat sinew]

I have a dash montage with 3 sections - start, loop and end. Start and end have root motion enabled and loop does not. I want to move the character manually while in the loop section by setting the movement component velocity. The problem is that the character movement is overridden by root motion even though i'm not in a root motion section. So i'm not able to move at all if i'm in the loop section, unless root motion is disabled for all sections. Is there any way to get around this or am I gonna have to make three separate montages and write logic for switching between them?

[trim matrix]

New issue! This timer never runs because it gets triggered like 2 every second, so it constantly overrides the original and starts a new one

[dawn gazelle]

Promote the return value to a variable. Check if the variable is a valid timer handle before allowing the set timer by event node to be called.

[topaz gazelle]

On tick the most recent spline point is at an offset from the actor's location. When I add another spline point at the same location I'm getting a curve between the points, and that extra curve is longer the greater the distance since I've added a spline point. I've tried setting the most recent spline point type to Linear, Constant, Clamped with no change.

[faint pasture]

Try setting the previous one to linear

also play with the tangent strength or whatever it's called

[topaz gazelle]

"Leave Tangent" seems to be the culprit. Thanks.

[ionic crescent]

dumb question... If i have an actor added to an array and that actor gets destroyed does the reference to it in the array get deleted too or does it turn null

okay thank you

will have to occasionally do a for each on the array and do a is valid then remove if not valid

[pulsar moss]

Hi all, how the heck do you update items in a List View? I tried updating the object, but it seems the entry's OnListItemObjectSet only happens once. Is there no way to update an item? I tried removing then adding a fresh item, but that doesn't maintain list order (and seems quite wasteful?)

[faint pasture]

How do they get in the array?

[elfin hazel]

I'm a little rusty on the listview, but the On List Item Object Set fires when the entrywidget is generated for an item. So if you scroll, as the entry widget gets scrolled in to view, it should fire. Does it not?

Or do you want to update an items entry that's always visible? Edit: "Regenerate All Entries" might be of use for you.

[old sonnet]

does IK rig allow a "look at" function where you can get character's head to follow a target?

[pulsar moss]

Yes, correct, but I want it to update when I click

[ionic crescent]

using perception adding them to an array of enemies in range

[pulsar moss]

For example, in my inventory screen, if a user clicks an item, it should equip or unequip (the leftmost column)

Here, I'm just setting a bool to my data

[pulsar moss]

but how can you force ListItem to refresh its widgets?

[pulsar moss]

oh, let me try that

[elfin hazel]

It's not an ideal node for this usecase, since it updates all of them. But might be an easy solution. I think the more proper thing to do would be to tell the entry widget to update. To tell it to Get the items data and update the text property.

[pulsar moss]

@elfin hazel yeah that works (and is inefficient as you say)

you can get an entry widget from an entry somehow?

[vital cargo]

Is there anyway to remove the slight delay in the "Timeline" node Finished pin? I have a 2 second timeline but the finished pin doesn't trigger until like 3 seconds

[thin panther]

that's not normal

show us your timeline curve

finished calls as soon as the timeline is finished

[vital cargo]

Just a simple linear curve

[versed sun]

Default timeline time is 5 sec

set it at the top

[vital cargo]

0,0 to 2,1

Sorry previous one was bad

[versed sun]

hmmm

[thin panther]

can you show us your use of the timeline?

[vital cargo]

By use you mean how I'm using it?

This is just called from the press of E

There is a video, you see the delay after it flicks back (god game bar recording is awful)

[elfin hazel]

Seems surprisingly difficult to get the corresponding Entry Widget for an Item.. I'm looking in to it. I guess your entry widget doesn't have something that detects the click, but use the listviews "On Item Clicked" event?

[rigid bobcat]

if you put a print on finished
is it also delayed

[vital cargo]

Yup

[thin panther]

print string and update and on finished (make them separate strings)

then record a new vid if you can