blueprint

[cinder thunder]

@versed sun in that picture example does the program Actually open that you are showing? I'm going to test this when I get home later.

[young meteor]

Seems they don't even have collisions. Is that needed for a Sphere Overlap Actors node?

[spark steppe]

2 behavior trees

but thats most likely unrelated to your problem.... i dont see why rabbit wouldn't work, i would rather expect the wolf to not work

[random pulsar]

it will not work with 1 anyway?

[spark steppe]

you make yourself more problems like this than necessary

once you got rabbit working, wolf will probably bug out

[random pulsar]

so i need to make another behaviour tree and use the same blackboard?

[young meteor]

Selecting "WorldDynamic" as Object Type did the trick. Not fully understanding what a Pawn etc. is yet obviously.

It works now though. Thanks. 😄

[random pulsar]

@spark steppe thanks

[spark steppe]

or make a separate blackboard, those are totally unrelated ai behaviors

[versed sun]

yes, it opens my VLC
you can also open default web browser to a page

https://app.screencast.com/HO8txoNtoDtl1

[cinder thunder]

@versed sun thank you

[pulsar vigil]

Hey guys is there anyway to setup a bolean that will reset the time of a sequence of animation in an animation blueprint ?
U can pin the anim montage in it but i dont know what to do next

[frosty heron]

That's not an anim montage

[pulsar vigil]

what is not an anime montage ?

[chrome pumice]

yoyo boyos can someone help me out?

so im trying to spawn an enemy but he just doesnt spawn

i made it spawn a particle at the same location wich works perfectly fine

[frosty heron]

Go to your idle anim in content folder and print screen

[chrome pumice]

particle spawns but no enemy

[versed sun]

the Random point for the AI will be different from the Emitter

[frosty heron]

That's an animation asset not anim montage

Anim montage have blue icon

[chrome pumice]

wym? i mean i can remove the random point it still doesnt spawn anything

when i reduce the range from the player to like very close it starts spawning

but i think the engine tries to find a good spot but doesnt like them or smth

[frosty heron]

What are the rules for spawning? Could be intersecting with the floor and fail to spawn. Just a guess

[chrome pumice]

it just takes your camera and gets the forward vector -1000

[frosty heron]

Try to print string the return value

[pulsar vigil]

but why does he propose me to get it like anim montage and does it help me to understand the thing i want to do better cause idont know what it changeif u want me to understand something from this statement or is this just a note

[frosty heron]

Of the spawn ai class node

[chrome pumice]

so basicly far behind the player, then it takes a random spot there

as i saied, it spawns a particle at the same location so i can track whats happening

the light spawns perfect but the ai doesnt

is there any node i can use? like reachable or useable spawnpoint?

it might be a collision problem

[versed sun]

if you try to spawn 2 emitters at same point , they will be at different locations
You have to save the Random Location because it will calculate a different random point if you don't
@chrome pumice

[frosty heron]

Anim montage and anim sequence isn't the same thing. It's important to distinguish the two.

You use slot to play anim montage. As of your problem, I am not sure why u want to "reset the time".

It sounded like a confusing approach. You can just get out from the state and go back in using bool, that will play the anim from the beginning. Again tho, not sure what the goal is

[versed sun]

also, not 100% sure about spawning AI

[chrome pumice]

ye i just spawn the emitter to find out if the ai spawn point is like under the map or smth

the map is kinda uneven aswell

this is where he should spawn but the enemy spawn just never happens

[pulsar vigil]

I just want to get a bolean to put the animation at the start to be able to reset the animation by pressing an input

i do this cause i made some sort of turntable to show my animation and model
i just want to press a keybind and reload anim in realtime

[chrome pumice]

even if i make them like much further up the sky so it doesnt fail collision, still happens

[frosty heron]

Reload anim can be done in upper slot while the lower part will use w.e anim is playing.

I suggest to get familiar with blend by bone node

U should use montage to play the reload anim

[pulsar vigil]

what w.e mean ?

no no bro sry i didnt said i wanted to do that, i want to be able to put the animation time at 0 when i press a keyboard button, there is no reload animation or blend per bone needed

[frosty heron]

What ever anim*

Well even tho that's really weird, I tried suggesting going out of the state and back in

Go to your state machine, on the idle, connect it with another state.

Use bool to drive in and out of the state

When it goes back into the state the anim should start over from beginning

[stark patio]

does anyone understand why this macro that is supposed to activate whenever the player changes the direction they are moving in doesnt work half the time? (it is called as long as the player moves)

[pulsar vigil]

thats awesome @frosty heron my idea to change animation with an abp is already pretty weird im assuming lol

[pulsar vigil]

i try this and tell u

[frosty heron]

Your anim instance meant to drive the animation of the character by reading the state of the owner.

Personally I keep all locomotion stuff as state machine and play other type of anim (reload, attack, etc) as anim montage

[pulsar vigil]

Yeah there is no reload animation or attack tho its me that fucked up saying reload i just want to control the time of the animation

[buoyant halo]

I've a BP with a widget button that opens panels on itself.
The BP has the event to open the panels, and the widget within calls the event.
However I can't place multiple of them because the new ones only open the original. Could anyone help?

[pulsar vigil]

Im a nooby but is that good to use flip flop here ?

[versed sun]

nah

[frosty heron]

U used get actor of class. That's already wrong

U will just get a random pipe thing in the world

Or more precise the first pipe the iterator found.
Get the actual reference of the pipe that you want to open

[stark patio]

idk, my thought was that that way would allow me to get the direction one tick ago and compare that to the one the current tick but maybe it doesnt? idk

[marble tusk]

Seems like a flip flop isn't want you want. Each time it's called it runs one of the outputs, then the next time it's called it runs the other. My guess is sometimes when you change direction A is the next one for it to call and updates the last direction. Then, B is called, it sees the same direction and doesn't do anything.

[buoyant halo]

Thank you, and also I don't know how to do that

[versed sun]

And it only get called when axis changes (I assume it's on an Input)

[pulsar vigil]

also the logic of the condition look great from my nooby eyes but it may not be precise enought for the branch to interpret in what time the axis differ

[frosty heron]

When you press the button, which pipe in the world do you actually want to open?

U could place 4 pipes for example. Which one do u want to open when the button is pressed?

[stark patio]

ah, that is true. But how should i do it other wise? having a sequence and or using delays doesnt really seem right.

[pulsar vigil]

i actualy dont know if its a good remarque or not but maybe try to get delta somewhere

[stark patio]

ye that was also my thought to

[stark patio]

like delta time or just the delta of the variable?

[marble tusk]

I'd remove the flip flop, then move the SET to after the branch. It only needs to be on the true part since false means it's equal anyway

[pulsar vigil]

delta time but it may be a dumb idea someone else will probably correct it

[winged blaze]

Does anyone know of a good method for keeping references of blueprints? When I'm confused about code I can always look up cpp code. However when I can't remember a blueprint script I've made I just take a screenshot of it to remember. is there a better system for this?

[pulsar vigil]

like right click reference viewer ?

[trim matrix]

bp func libs

[winged blaze]

often I use blueprint scripts between projects. Sometimes I forget what I did so I have to reopen the old project and look at what I did

if I just screenshot it I don't have to reopen the older project

[stark patio]

That worked, thank you :D

[trim matrix]

.

[ebon olive]

the sequence node means run more than one thing?

[waxen cairn]

Hi everyone, I'm working on a project in UE4.27, as far as I remember breakpoints used to remain active after closing and reopening the editor, now I have to re-enable them every time.
I tried to reset the engine settings and delete the config folder in the project but the issue persists, can you please confirm me I'm not mad? 🤣

[winged blaze]

No I'm just looking for an easy way to remember blueprints, I've found the best way is to screenshot thing and take notes

[versed sun]

you can add a description of what the function does

whenever you hover over the function , you can read what it does

[pulsar vigil]

look like the best idea but this is not a bad idea to seek a process to make automatic doc lol

[pulsar vigil]

Its Working thx sir cat

[winged blaze]

ok thanks 🙂

[sturdy ice]

Hello guys, Im a beginner in Unreal and no coding experience whatsoever so I need help :), I was trying to add running system with stamina but I altered some parts of the blueprint from the video I was watching but now my character is not stopping running (go back to normal walking speed), how do I fix this?

[versed sun]

or 400 , don't remember normal speed

[winged zephyr]

Is there a way to give an operator as a string or other variable type to use it in a math expressions?

[frosty heron]

It just run the first exec pin then the next

[ebon olive]

like together or after the first exec is done? sorry

[sturdy ice]

Isn't this method make problems when I go further developing my game, like I want to add +movespeed items?

[frosty heron]

After the exec is done. There is no together in a sense that everything runs from top to bottom

The only thing that run on separate threads are async stuff

[ebon olive]

ohh i see. okok thanks so much!

[trim matrix]

ur speed will keep increasing. If the drain stamina func disables is running, ur speed still won't lower unless the player lets go off the key (not to mention it will never return to the original one)

[thin panther]

Absolutely, but you didn't mention this :P

[frosty heron]

you can see it with break point

[versed sun]

you can make the 600 a variable, and change that value when you add move speed items

[thin panther]

For items and effects that modify move speed you're gonna want to roll a manager than d handles and collects modifiers. It's generally the easiest way to handle without pulling your hair out :P

[sweet silo]

hi there how would create a "tear down a poster" mechanic ? thanks !

i know hot to swap mesh but i'd like the hand to rip the paper

[sturdy ice]

In my mind I wanted to get "current movespeed" every time I want to change the speed of the char, so this is a simple way to do that huh?

[versed sun]

yes

[sturdy ice]

Thanks a lot for the help 🙂

[thin panther]

It's just an animation

[winged zephyr]

Example of what I mean:

a operator b

So if you make operator = ^ it would become a ^ b
Or operator = * it would become a * b

[sweet silo]

hmmm true i guess i could do that

[thin panther]

Play montage of poster tearing down, remove poster

[sweet silo]

thanks i'll do that!

[thin panther]

No problem!

[trim matrix]

implement that yourself

[winged zephyr]

My question is if or how it is possible to implement

[trim matrix]

switch on the character between them

and do the appropriate logic there

[winged zephyr]

Aight only possible with hard coding it Ig
thanks for the reply ^^

[trim matrix]

you aren't making a calculator app in ue,are you?

[thin panther]

Yeah you'll just need to parse the operator out

[winged zephyr]

Worse than that, an incremental game

[trim matrix]

bruh

ue is not for things like that

[winged zephyr]

Dw I'm well aware, doesn't stop me from trying

[trim matrix]

i mean, im not gonna stop you yeah

i would if i could tho 🙂

[lethal pollen]

Hi!

Can a blueprint inherit from UProceduralMeshComponent?

Thanks!

[sturdy ice]

Can I use "Do once" somewhere and stop the increase?

[lethal pollen]

I have a C++ class, class My_API UPStickProceduralMeshComponent : public UProceduralMeshComponent, but I can't find it here:

[frosty heron]

Afaik anything that uses uobject should be visible

Try without the U?

[indigo lake]

Did you give it the Blueprintable specifier

[lethal pollen]

No.

[ashen narwhal]

Hi there, I have this very simple event. But for some reason the widget buttons aren't being triggerd when I press them. Am I doing something wrong here?

Any advice would be great, thanks

In game widget ^. The buttons at the bottom are the ones which aren't working.
NOTE: I just have the buttons "on clicked" print string.

[frosty heron]

Print string on the clicked event for the button that "don't work".
If it doesn't print anything, then open widget reflector and hover over the button. See if you are actually hovering over the button

[sturdy ice]

Just connected red instead of blue and now its working just fine, just as I wanted 😄

[trim matrix]

i thought you wanted to speed to keep on increasing

until a certain point

[ashen narwhal]

Still nothing, unfortunately. Although you can't see it, I have "show mouse curser on" and not getting any results when mouse is over the button.

[trim matrix]

btw, that stamina sys can be avoided by just pressing the sprint again

[ashen narwhal]

Could it be because the widget is in the world and not displayed in the normal way?

[edgy ingot]

Use widget reflector to see if u can actually detect the button. No need for guessing game

Is it a 3d widget component or user widget?

[trim matrix]

for the 3d one you added a comp i think

to ur camera

[ashen narwhal]

this one.

[edgy ingot]

Have u got widget interaction comp?

[trim matrix]

https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/UMG/UserGuide/WidgetInteraction/

[edgy ingot]

In your player character or w.e suppose to interact with the widget

[ashen narwhal]

The player walks into a volume then camera switches to this one and the widget is displayed.

[edgy ingot]

Kay, have u got widget interaction comp in your character?

[ashen narwhal]

No

[trim matrix]

addd

you won't be able to use your widget otherwise

(as a 3d widgt comp)

[edgy ingot]

Widget interaction

I havent play with that for a very long time. I suggest reading the docs, ssolve linked

[ashen narwhal]

I've added it to the player. Can I just leave the settings as default?

[trim matrix]

prolly

[edgy ingot]

Afaik yes

[ashen narwhal]

My mouse is in the center of the screen. So some offset I will add.

Also the trace doesn't go up or down

[trim matrix]

yeah you'd need to add the mouse offset

[edgy ingot]

I never interact with mouse, i did what ssolve said. Make the widget interaction, the child of the camera

And i move my camera to drive the trace

Not sure if u can use mouse

[ashen narwhal]

oh ok, I will try that.

[edgy ingot]

I mean you prob can but i dont know

[trim matrix]

no wait

@ashen narwhal in the details pannel there's a interaction source property

set it to mouse

and that's all you need to do

besides adding the comp ofc

[ashen narwhal]

I've done it. But oddly now I don't see a trace at all.

[edgy ingot]

Well u would be using your mouse

Maybe check if it print now

[ashen narwhal]

Still no print 😭

Do you think its because the camra switch?

[trim matrix]

possibly

no idea how that comp works under the hood

[edgy ingot]

No idea with the nouse stuff, i have no editor on me

But u can try using your player camera

[trim matrix]

see if it works without the cam change

[edgy ingot]

Btw is the button set to visible? Make sure its not non hit testable

[ashen narwhal]

Will try that. Thanks to both of you though. Appreciate the support .

[trim matrix]

their trace doesnt seem to be drawing though

[edgy ingot]

It draws with the camera

#blueprint message

[trim matrix]

.

[ashen narwhal]

that was before I switched it to mouse

[edgy ingot]

Ye i meant to change it back to camera

I have no clue with mouse stuff

My experience was doing it for a vr game

I just make the widget interact component a child of the vr controller

[trim matrix]

what is the object that i use to cast to my main widget?

[edgy ingot]

And it work just fine

[edgy ingot]

Casting is a type check

If the ref you provided is not the base class of you are casting, it will return fail

[ashen narwhal]

I see. I will switch it back and see if after adding offset it works right.

thanks again

[edgy ingot]

U shouldnt have to do any offset afaik

Make it a child of your player camera and dont change the camera when entering the volume

[ashen narwhal]

ok, will try now.

[trim matrix]

thanks for the info

[hollow cove]

how do random streams work in multiplayer? for example if you grab a random integer from stream, assuming the seed is replicated, would the random number be identical as long at they're both trying to get a random number for the 5th time for example

[hushed heath]

yoo i have a loop with a retriggerable delay and its dependant on my FPS wich isnt acceptable in my case can someone tell me how to make it fixed no matter the fps

[warped sapphire]

Can I upgrade my project from ue5.2 to 5.3

I tried upgrade project from 5.1 to 5.3 and failed opening character class

[trim matrix]

show what are you setting the battery to

[hushed heath]

okay

this is where the deltaseconds comes from

[trim matrix]

you can get it with a get delta seconds node

no need to store it in a var

[trim matrix]

have you changed that since you've said it was frame dependent?

[hushed heath]

no

it was there even before the loop

but this loop isnt running in tick

i forgot to mention

a bit more zoomed out

[trim matrix]

And it didn't work when not using the delta time?

[hushed heath]

i will take a look

i just did that to prevent the problem im having now but it clearly isnt working

[tropic pendant]

for some reason, the lower 2 nodes cause an infinite loop according to the editor

[hushed heath]

this worked thanks you so much :))

[snow lintel]

Hi guys,
i try to create an effect (material) like this in unreal https://youtu.be/v15C8SbTTac?si=IMIt9npcJrc-7q2s&t=123

Does someone have an idea how to create this in unreal ?
I tried something but this looks very bad.

[nimble maple]

So, I've been trying to solve some stupid problem, and I forgot how to solve it. Beginner problem yk. I want to move the ads up, yet if I add it with a vector on the z, it moves up and down when I look up and down. I am trying to achieve, that it stays in one place, yet moving it up on the z axis. Not only that, but I tried it in the skeletal mesh already, it didn't work. Any solutions?

[opal kraken]

Someone can help me, i have thoose two meshes, i want that the mesh 2 would move like in the video with an interp movement that is activated with a box collision, how can i do that?

[edgy ingot]

Check if you have circular dependencies

[edgy ingot]

On overlap with the box collision, you can lerp relative location using timeline

[opal kraken]

Without interp movement?

[edgy ingot]

You can use lerp instead

Or you can use event on tick and interp movement with delta time

[opal kraken]

Ok i'm going to try with lerp, thx

[edgy ingot]

You will still interpolate from point a to point b

[hushed heath]

@trim matrix Hey man sorry to bother but i just found out it isnt fixed but the difference between 15fps and 60fps is just really small but big enough to inmpact my game. Do you have another idea i could try?

[edgy ingot]

What do u actually want to do?

[hushed heath]

.

i have sent screenshots below

[edgy ingot]

Dont connect pins like that

[hushed heath]

how should i connect my pins then>

[edgy ingot]

What is your end goal?

[hushed heath]

wdym

[edgy ingot]

By not making circular pins

What do u actually want to do?

[hushed heath]

i want to decrease the battery of my flashlight whenever it is switched on and then switch it of automaticaly when the battery runs out.

[edgy ingot]

Come up with a number that the battery losses in a second. Multiply that by delta time. Then subtract your battery value with the result

It will be the same number regardless of your fps

[hushed heath]

okay i will try this

[edgy ingot]

Do it on tick

[hushed heath]

ah okay will do

ill just create a function then

thanks this worked but could this be taking a toll on my fps cuz im not getting fps above 40 and i have read that tick can be very expensive.

But i also dont see any other option to run things per fixed frame this efficiently

[frosty heron]

Depends on what u do with tick

Setting float shouldn't drop your fps at all

Try to unhook the function, you prob still get 40 fps

[opal kraken]

@edgy ingot i did this, it works, but when i overlap the box collision again it doesn't play the timeline again, any clue?

[twin shale]

I need a sanity check....This code works if ElevatorTarget is under the current location, but it does not work if the target is above the relative location... So 10,10,-2000 works fine, 10,10,2000 does not work. Anyone have any idea what it might be?

[frosty heron]

There are many many things run on ticks, it's not expensive. Just don't do expensive operation in tick like get all actor of class

I mean scratch that. Bp tick is kinda expensive but should suffice for small scale project

[frosty heron]

Print string to debug.

I would set the start position and end position before the timeline. The timeline should just have a value of 0 at the start and 1 at the end
Use the float from the timeline and connect it to alpha of lerp node. Connect start position to the first input of the lerp and end position on the second input of the lerp.

Connect the result to set relative location of your mesh

[compact fjord]

does anyone know why would for each loop with break return True 4 times when it should break the loop when it gets the first true branch ?

[hushed heath]

you are right once again thanks man you are so helpfull!

[frosty heron]

Show code

[twin shale]

Well this is annoying. I just deleted the VInterp and SetRelativeLocation nodes and replaced them with "fresh" nodes. Everything works fine now. Blueprints is weird sometimes.

[wild moat]

i've made a custom function, but it doesnt use any exec input/outputs, how do i hide them or make this just a value output node?

[frosty heron]

U mean u don't want the exec pins?

[twin shale]

You have to mark it as Pure if it's a pure function

[frosty heron]

Then you can make it a pure function

[compact fjord]

@frosty heron

[wild moat]

i tried that, but then it won't print anything, using the same exact nodes outside the function works perfectly fine:

[frosty heron]

You shouldn't use pure function carelessly, especially if you have obj ref, which I see you do from your pic

[twin shale]

Then you have some issue inside the function. The pure function will run as an input to PrintString

[frosty heron]

Print string the objects you are comparing

[twin shale]

Also, read @frosty heron's message. Pure functions should only rely on the inputs given to them, otherwise they should not be marked as Pure

[opal kraken]

It work now thanks, but i didn't understand why on final position i have to set the Z value to one, i moved the cube on the viewport by 200 on the z and it was on the right final position, so why in the final position if i set 200 on the z the cube move in where it shouldn't but if i set the z final position to 1 the cube moves by the same height when i move up by 200 z on the viewport?

[wild moat]

yeah, i'll make sure to expose the actors then

oop i got it working

[frosty heron]

Not sure if I follow . Why is your end position only 1 unit high? Try higher numbers

[wild moat]

thanks for the help 😄

[twin shale]

Awesome!

[frosty heron]

Btw is the alpha 0 to 1 ?

Your initial position can be your current relative position of the mesh

Get mesh-> get relative location. Grab the output and set that to your initial location

[opal kraken]

Sorry my mistake, i left in the timeline the value 200 at second 1

Solved

[frosty heron]

Your timeline value should be 0 to 1

[opal kraken]

It works perfectly thanks so much

[frosty heron]

If u want to move something over 3 seconds for example. Length is 3 seconds.
1st key is 0 at 0, 2nd key is 1 at 3 seconds

In the timeline it shouldn't be the value of your final position. I'm not sure if things actually work in your end

[opal kraken]

This is my timeline, before i put 200 instead of 1 and i was using the float value of the timeline as z location, now i'm using it correctly

[frosty heron]

That doesn't look right, but I have no editor atm to show some bp. Your timeline should end at the last value too. Adjust the length (top left, see where it write 5)

When you play in pie, eject from your controller and check the relative location of the comp u moved. I will be surprised if you get the correct value

https://m.youtube.com/watch?v=5SPhRZzjL_c&pp=ygUbTGVycCB0aW1lbGluZSB1bnJlYWwgZW5naW5l

Video is a bit too fast tho 😔

[opal kraken]

Like you see it kinda works, i made this thing beacuse i wanted a sort of launchpad that didn't use launch player but only the physics, but unfortunately the player stay perfectly fine on the box when it raise, but when i move fast like at the end the player maintain the velocity given by the raising box (it is kinda what i want), do you know how can i manage to make the player jump even if he stands on the box?

[frosty heron]

Physich is not my territory, but there are places where you can start.

Official docs for character movement component. Or you can look at delgoodie cmc tutorial.

In cmc you can basically enter a new physic state when you changed movement mode. You can define custom movement state and work on your physich logic there.

I would say keep it simple and just call the player jump function when u do the spring thingy

[opal kraken]

It seems kinda hard to do, i'm a begginer XD, i went into a complicated territory, i will use the jump like you said, thanks.

[frosty heron]

Is your game single player?

[opal kraken]

Yes

It would be crazy for me to try doing a multiplayer

[frosty heron]

Multiplayer is hard

Extending cmc in multiplayer requires cpp

Other than jump I think there is add impulse or force

Maybe you can look at that too

[opal kraken]

Ok, i will, thanks

[tropic pendant]

i mean yeah, but it should get out of the loop once a condition is true

[earnest fog]

Question about setting up class structures for gameplay actions: my characters can use certain powers, and I'm looking for the right way to structure that. I was thinking to just have a Powers base class, and have child classes which spawn the relevant effects and such. I figured it should be parented to Object, since it's just a collection of variables and code, and doesn't need to exist in the world. However, since it's not parented to Actor, it can't call Spawn Actor. I'm fine reparenting the powers base class to Actor, but it just seems like bad form to treat it like an actor. So, what, I spawn the actor in, run its code, and then immediately delete it? I can do that, it just seems like there's a better way. How have other people handled this?

[dawn gazelle]

The question is when would that loop end. Executions are meant to be finished within a frame, and if the condition is never reached, it'll exceed that execution time and cause that infinite loop error.

[tropic pendant]

ohh, so i cant do a sort-of while loop like that

[feral ice]

How do i get the angle between my characters forward vector and my camera direction?

[dawn gazelle]

While loops suffer the same problem. If their condition doesn't go false within adequate time, they cause infinite loop errors.

[tropic pendant]

how do I go about this then?

i need to have the if statement run every frame?

[dawn gazelle]

That's probably the closest you could get to what you're trying to do, yes.

Can always gate it with a bool and branch first so you're only running it when you want, then set that bool false when you want to not run it.

[tropic pendant]

it worked tho

[balmy carbon]

Hello! So I'm trying to make a setting menu. I have a Structure with Audio settings volume (all floats), a savegame blueprint with the structure variable. The "Get Game Settings" variable is in the Function Library. And it's called in the Settings Widget (last picture). Any idea how can I solve this one? Maybe I'm missing something. Thank you!

[hollow tendon]

Hi, Can someone help me my blueprint is not working

https://preview.redd.it/i-love-blueprints-v0-39f9hqsleika1.png?auto=webp&s=7a7855603eb37f87856562538b17c218737803f2

[opal kraken]

I wonder how many developers have their code like this

[hollow tendon]

that one?

Thanks! Going to remove it

[lofty rapids]

what is that bp in ? what class ?

[hollow tendon]

Hardcoding_Objects.bp.uasset

[spark steppe]

level BP, what else?

[trim matrix]

Hey, I've been trying to make this work but I can't get the pawn to move.
This is the blueprint for the AI movement and I did set a navmesh and floatingPawnMovement.
I also sent a screenshot of the navMesh because there are some cracks and I don't know if that matters.
Also it keep saying " NAVMESH NEEDS TO BE REBUILT " but I did rebuilt the navMesh few times.

[steady night]

@frosty heron hmm

[edgy ingot]

@steady night ?

[steady night]

aye, sry nothing found it .p

what project are u working on now btw ? still the same as a month ago ?

@edgy ingot

[edgy ingot]

Holy shit

[spark steppe]

does the pawn that you want to move have an AI Controller assigned?

[edgy ingot]

Working on 2 projects atm

[steady night]

@hollow tendon whattahell is that 😮

[trim matrix]

Yes.

[edgy ingot]

One is the old one , another one is multiplayer rpg

[steady night]

its like Mariocarts Ranbow Road map

solo on both ?

why on 2 at the same time T.T derp ?

[edgy ingot]

Not solo

Solo scripter yea

[steady night]

ah okok

still 2 at the same time must be a hazzle :/

[edgy ingot]

Yup but i have no choice. Cant stick with the old one only because it didnt make it to our target platform

In short, losing too much money

Trying to finish it just because some people backed it

[steady night]

oh sheat

[sacred estuary]

Hey guys, I was wondering, how do I get a mesh (cube, whatever,) to scale with text? right now 3D text can "overflow". I want the mesh width to change alongside the text's length

[steady night]

can i se it somewhere or ?

on Kickstarter ?

[sacred estuary]

what it looks like right now

what I want it to look like

[edgy ingot]

I took down the patreon recently, so nothing to see. Catching plane to japan atm. I can share some screen shoots when im back if u want to see

[steady night]

yeah saure

sure

Cool

whats going down in japan ?

[edgy ingot]

Try making the text the child of the box

Then tick set size to context

[edgy ingot]

Holiday 🦦

[steady night]

ahh cool

[sacred estuary]

I want it to scale the box instead of scale down to fit the box's bounds. I want it to be a funny joke in game, when someone with a long name joins their nametag will of course be comically oversized

that's what I'm looking to do anyways lol

[edgy ingot]

#umg maybe know

[thin panther]

that sounds like something you want to use a widget for, not 3d text

[edgy ingot]

0o even the text is 3d?

[thin panther]

it also sounds really awful, and you would have people joining with absurdly long, possibly offensive names to annoy others

[thin panther]

Hey guys, I was wondering, how do I get a mesh (cube, whatever,) to scale with text? right now 3D text can "overflow". I want the mesh width to change alongside the text's length

it's not a widget

[edgy ingot]

I see, i need coffe

[sacred estuary]

this isn't something I'm too worried about as it's not going to be a very public game, simply a little fun project I'm doing while getting to grips with networking

[thin panther]

you should go make some

[thin panther]

as long as you're sure this isn't going to be commercially facing, then go for it, but you'll want to be doing this via a widget 🙂

sounds like a funny little gimmick to enjoy with friends :P

[ancient folio]

Hey all, what would be the best approach to set actor's location parented to other's actor component location?

[lunar sleet]

wdym

[lofty rapids]

you can guestimate the font size and base the width off the amount of characters

[lunar sleet]

#multiplayer is a lot more complex than you'd think, best to ask directly in there

[hushed heath]

ah okay

but if anyone can help me just al lil bit in here would be fine aswell 🙂

[lunar sleet]

also see #rules on cross-posting, you'd already gotten a reply there

[hushed heath]

okay sorry

[ancient folio]

@lunar sleet let's say i have a wardobe with drawers and I would like to put something (another actor) in one of the drawers and would like if that actor move along with drawer when I open it

[lunar sleet]

attach actor to actor or actor to component

[ancient folio]

@lunar sleet thanks, I will try, I tried to calcukate drawer location and combine it with other actor, but it didnt work as I excepted

[lunar sleet]

just use those nodes and that'll do the work for you

you might need to turn off some collisions in the process

[ancient folio]

@lunar sleet that's works, thank you!

[obsidian arch]

hey all does anyone know how this is causing an infinite loop? cheers

[dawn gazelle]

While loops are meant to be completed within a frame. You can't let them run indefinitely.

If you want something done over time, you'll need to use tick. In this case, a timer may be adequate if you don't need to change the value every frame.

[undone bridge]

hey guys, I set up this code to steer a projectile, "turn" is a value between -1:1 but, the code is currently being run many... many times a second. causing the projectile to spin out of control. can someone let me know what I'm doing wrong here?

[elder lodge]

where is steer being called?

[undone bridge]

under the main player controller

[frosty heron]

Triggered runs every frame

[trim matrix]

Unfortunately there is a lot wrong with this code.

Firstly, this setTimerByEvent function is comepletly unessicary, and will cause issues. Steer in the current context will be called every frame of the game. Meaning you are starting an aditional 1 second looping timer every frame? The solution, is delete the looping timer node entirely. This alone will not correctly solve all the issues.

Triggered on the input mapping runs each frame. Meaning steer will run each frame. Meaning you cannot constantly apply any rotation value and must factor in the FrameDeltaTime in order to apply different amounts of angle rotation each frame.

guys this is my character blueprint, is it too big?

[steady night]

hello

can someone explain what 135 dose

[spark steppe]

cute

my usual gameobject is more complex than that character BP 😄

[frosty heron]

If difference is higher than 135 degree?

[steady night]

yeah but like 135 from where to what

[trim matrix]

ok, thanks, im new to ue5 and i dont know if i am doing too much

in one singular bp

[spark steppe]

it's fine, don't worry

[frosty heron]

A.yaw - b.yaw = X
If X bigger than 135, return true else return falss

[trim matrix]

||using BPs to do core gameplay mechanics is too much by itself||

BPs are a godsend.

[steady night]

@frosty heron yeah but in relative term is it like "if behind" right or ?

[frosty heron]

No clue, if u need to check if something is behind something. Use dot product

[trim matrix]

so how should i do like shooting or interacting

[steady night]

hm never done that ideas ?

tutorials ?

[frosty heron]

Google able or even youtubeable

[frosty heron]

You can use components to break down features

If your bp gets too large, it takes more time to compile

[trim matrix]

🇨||++||

[tiny mortar]

I'm casting to my save blueprint and setting the variable 'player location' as the actor location, then saving game to slot 'Save1'

Then I cast to save blueprint, load the level, other variables, and finally set actor transformation as the variable 'player location'.

But upon loading 'Save1' my character goes to the right level, all other variables work, but the location is always where the 'PlayerStart' is.

It's stored as a transform variable within the save blueprint, i've watched multiple tutorials and mine matches up with each of them

[undone bridge]

I think I follow... but I'm not sure how to do that. something like: when triggered calculate the time passed between frames and multiply the arbitrary angular rotation by that number?

[frosty heron]

You can make entire game in bp only

[trim matrix]

Its just RotationRate * DeltaTime

DeltaTime is already calculalted for you, you can just call GetWorldDeltaSeconds

[trim matrix]

unless you run into just that 1 thing that you can't do in bps

[frosty heron]

Live without that 1 thing or step up the game with cpp

[undone bridge]

that get's me to here, but it's still spinning WAY too fast

[trim matrix]

I dont beleive you want to set velocity in local space, ActorForwardVector returns in world space.

Confirm that turn isnt to high. Nvm i see turn is just the axis value.

[cinder thunder]

So i got the basic functionality working, but I cant seem to figure out how to launch a .exe with launch parameters, any ideas? If you can somehow figure it out, I would be so gratefull. I tried appeneding my paramters to the string, but it doesnt seem to work....\

[undone bridge]

i tried setting the "turn" multiplier to 0.001, no change

[cinder thunder]

I was able to launch a basic .txt file to confirm its working, but cant figure out the laucnh parameters...

[trim matrix]

Nvm i see turn is just axis value.

[undone bridge]

Hang on!

I think it was the local space part. I found a different Node

This works!

no visible problems

[trim matrix]

yea SetVelocity is in world space now.

[tawdry orchid]

Is there a way to make the ThirdPersonCharacter move only along a spline? Almost like a side-scroller, but curved? I've been looking into it yet can't seem to figure out a way of doing this that's worked.

[undone bridge]

this has been such a pain in the butt to figure out, Thanks! Trying to find relevent tutorials is toturous

[trim matrix]

In the GameState (Or gamemode, cant ever remember without checking again) there are functions you can override called FindPlayerStart, ChoosePlayerStart. These functions are called by unreal engine to determine a players starting position. You are setting the actor location of the player somewhere (Upon loading, wherever that is), but unreal is using the value returned by those functions to pick the starting position.

Either confirm that the players transform is being updated after unreal is choosing the location, or override those choose player start functions to properly provide a player starting location.

[trim matrix]

https://dev.epicgames.com/community/learning/tutorials/Za2a/how-to-move-a-character-along-a-spline-in-unreal-engine-5?locale=fr-fr&locale=it-it

[frosty heron]

Game mode

Iirc

[tiny mortar]

thanks, I'll try it

[tawdry orchid]

Ah, thank you!! 😄

Ahhh yes I saw that one, not quite what I'm looking for but thank you. 🙂

[trim matrix]

How does what you want differ.

[steady night]

@frosty heron https://blueprintue.com/blueprint/tgyfp2-u/

this should work right or am i missing something ?

[tawdry orchid]

Well this one seems to be more automatic movement of other characters, whereas I'm stuck on how to get my player character to move along the path when arrow keys are pressed if that makes sense.

[frosty heron]

Dot product should return a value of -1 to 1

[steady night]

hm so how should i check then :/ ?

[frosty heron]

-1 being total opposite of each other

0 is 90 degree

[trim matrix]

Its nearly the same exact concept. Instead of adding a constant change in distance every frame. Add a distance value that is driven by the arrow keys.

[steady night]

hm ok

[frosty heron]

1 means the vector are pointing at the same direction

[tawdry orchid]

Ooooh okay, I'll try it, thank you! 😄

[tiny mortar]

so what do I do?

[steady night]

hm aye, but the ACOSD @frosty heron

[frosty heron]

So if the dot product of 2 vector is -0.7 to -1 . You can say that actor a is behind actor b

I never actually used it and I'm bad at math

Try to look up at some videos using it

[steady night]

kk

[frosty heron]

I think get actor forward vector or actor a. Get actor forward vector of actor b. Then dot product the two vector

[trim matrix]

I would recommend overriding the find/choose player start functions like I said. Go to your game mode class and override them.

[frosty heron]

Print string the result so u can see at what value do you want to determine if actor b is behind actor a or vice versa

[tiny mortar]

yeah but how do I do that?

[trim matrix]

look it up online or something its simple. I don't have unreal open to give step by step instructions with pictures.

Your just overriding a function

[frosty heron]

If you don't know how to override a function. Start with googling it

[versed sun]

no clue, maybe launch a shortcut to the program with the launch params ?

[cinder thunder]

@versed sun good idea that's what I was thinking. Should be a decent solution for now. It's Def going to bother me until I figure it out. Thanks.

[steady night]

https://gyazo.com/f98935088f72e831eed63a4868d43efe

shouldent this look if im behind the target 😮

what am i missing

[zealous sedge]

Hello, I have this blueprint that duplicates the player based off of the value you set for it to multiply. I have to main problems: One, when counting how many actors there are with the for each loop, it counts up with every single duplicated player that interacts with it instead of just one of them. Second, when i change one of the actors to multiply by 3 for example, it still only multiplies by 2. (Amount of actors is 1 by default)

[radiant cape]

Are classes the first ever thing created?
And objects are things that extend from it?

Is a parent not always a class, but a parent is always the object/class something extends from?

[dawn gazelle]

Everything is a class.

You spawn objects of the class.

Two very basic classes in the engine are the "Object" class and the "Actor" class. Actor is a subclass of Object. Every class you'd normally do anything with extends from the object class.

When you're creating something that'll exist in the world (ie. something you can see in the viewport), you'd normally subclass Actor to create it.

So yea, even when you're creating a blueprint, you're effectively creating a class which is a template of variables and functions, some of which are inherited from its parent class, some of which you override, or you create your own custom functions and variables, then you would proceed to spawn an object based on that template.

[steady night]

Datura, could u help me with how to check if behind target actor

this is where im at atm

but its not working

[dawn gazelle]

if (BehindTargetActor)
{
// do logic here
}
``` 😄

[steady night]

lawl

[trim matrix]

Is this function trying to do, if SELF is behind TARGET actor?

[steady night]

yeah

[trim matrix]

Your driving the first parameter of the DOT product by SELFs forward vector.

That would need to be the TARGETs forward vector.

Basicly the function is just backwards rn

[steady night]

oh

[dawn gazelle]

DotProduct(Normalize(ActorA location - ActorB location ), ActorAForwardVector)

[trim matrix]

your doing if TARGET is behinf SELF

[trim matrix]

Also, dot product returns a value from -1 to 1. Not 0 - 1.

The midpoint in the range of -1 to 1, is zero. Not .5

Id imagine you want the midpoint.

[radiant cape]

Literally like what happens when you use the spawn node to make an NPC spawner or the create widget node?
The things it spawns are objects...?

[steady night]

i mean im guessin from midd point like 45-90 degreess something the ass *

how would i get that then ?

[dawn gazelle]

Yep.

[radiant cape]

woah... So is the main object class that it looks like everything extends from gets spawned itself at some point in the engine init?
Like, why is that class called object? kinda messing me up
Or should I just be content with what i've learned just now xD

[trim matrix]

Idk what threshold value you want . Just making sure you. knew dot product returned from -1 to 1. With that you should be able to find the correct threshold

[dawn gazelle]

Basically everything can be referred to as an object. It's part of the basis of how object oriented programming languages work.

[trim matrix]

the spawn node in the unreal editor is an object .

[dawn gazelle]

Yep.

[radiant cape]

ty mans haha really appreciate it

[steady night]

@trim matrix hmm cant get it to work mine prints all the time now

[trim matrix]

Couldn’t tell you without the code

[trim matrix]

Ty

[steady night]

both actors derives from same class also*

[dawn gazelle]

ACosD will return an angle between 0 and 180.

So if you wanted to check only within 40 degrees behind, do <40 from the ACosD

[steady night]

hm

[dawn gazelle]

Blue arrow = actor's forward vector

[winged totem]

Hi, using EQS, how can i filter if an actor is dead, to let AI changes the target?

[trim matrix]

this should have been greater than 0.5 i think

[trim matrix]

.

@dawn gazelle am i wrong?

i think ima right cuz the cosine of angles <90 is positive

[steady night]

@dawn gazelle how have u assignet the Targets for the locations etc
?

[trim matrix]

the first 2 should be your comp location

starting from top to bottom

[steady night]

right ?

[trim matrix]

enemy should be the first 2

also i don't see the need of replacing the unit vector node they had before but whatever

[dawn gazelle]

Yea that does the exact same thing, subtracts one from the other and normalizes it.

[zealous moth]

what do you call the component you use to visualize abstract actors?

like a random sprite

we have that cloud, th elight bulb or the dinosaur

what are those?

[spark steppe]

billboard

[trim matrix]

i call it the

[spark steppe]

for me it's the unreal camel

[remote girder]

Have a pretty time sensitive question.
How do I make one trigger box 'wake up' another trigger box placed somewhere else?
Any help is appreciated

[spark steppe]

https://tenor.com/view/camel-camelbite-ouch-checkyourself-nope-gif-8856529

[patent crow]

the hump shaders r still compiling

[spark steppe]

https://tenor.com/view/the-what-smile-whut-weird-stare-gif-16592004

[spark steppe]

what do you mean by "wake up"?

[zealous moth]

time to put on your makeup

[remote girder]

I need one trigger box, when triggered, to then 'activate' a previously deactivated trigger box.

[patent crow]

put a tag on trigger box B;
on first trigger box, find actors with tag;
execute "wake up" event from first trigger box

or gather the reference in another way

you could use an interface to avoid a direct cast, if this is a frequent call

[spark steppe]

or save the reference on the trigger box which should wake up the other one....

[patent crow]

^

depends on your usage case

if the trigger box is small in memory size, theres no issue

[spark steppe]

a reference is pretty much a pointer

[patent crow]

if you bog the trigger w a lot of code, youll be using twice as much mem with a hard ref

[spark steppe]

nonsense, if they are in the same level

[patent crow]

ah yeah, as long as theyre in the same level instance, it shouldnt matter

[remote girder]

I'll be real with you guys. I'm realtively new to ue. I've assigned a tag to the second trigger, but now I'm not sure how to 'find actors with tag'

or what a direct cast is lol

[patent crow]

as time sensitive as it may be, you may wanna skim this https://docs.unrealengine.com/5.0/en-US/how-to-use-blueprint-communications-in-unreal-engine/

learn the why before the how

[remote girder]

bit late for that, but I'll read it

[spark steppe]

wait i got a good video for you

https://www.youtube.com/watch?v=3iIAcOtPJZg

watch the whole thing, and you'll learn a lot of good stuff

[patent crow]

the first section should give you a solution. create a variable in your awake trigger, and set the var type to the same as your trigger bp. you can use the dropper to select the other trigger and then you can perform actions on the sleepy trigger.

[remote girder]

This is for my portfolio project, which is due in less than 4 hours...I love UE and will absolutely watch this video when I can, but right now I just need to learn how to activate this trigger box @spark steppe I really do appreciate this though

[spark steppe]

after the video you should be able to do it in 30 seconds 😛

[patent crow]

and "wake up" really depends on what you need to do. you can enable/disable tick with that reference. you can execute any events in that blueprint, including functions from it's parent, if it's the child to like, a "main trigger" blueprint where most of your logic is set

that is a good video, but there's a direct answer if you dont need the "how" yet

[spark steppe]

and i think he does it within the first 30 minutes in the teleporter example

[patent crow]

yeah, youre right

[remote girder]

this is what I got so far. The Awake variable is what I made following your instructions

I don't know what you mean by dropper...

[elder lodge]

I'm modifying the look controls for a zero-g game, but for some reason this only works with the Y(Pitch) axis and is ignored on the Z(yaw). After some playing around, it seems like something overrides the Z rotation to always stay the same on the actor, i.e. I can preview changing it in the editor during play but as soon as I click enter it resets. Anybody know why? Something in the CMC that locks that axis?

[vital cargo]

Anyone know how to get the position/vector/location of the very end of a spline?

[spark steppe]

get spline points returns an array of vectors iirc

[vital cargo]

Get Number Of Spline Points into Get Location At Spline Points I assume would work, couldn't find Get Spline Points

[spark steppe]

yea, possible that it doesn't even exist, sorry

[vital cargo]

^ That works

Its fine, you pointed me towards the right direction

I would have thought you could get an array too but I guess not, i'd probably have to loop through them or something.

[spark steppe]

i'm pretty sure there is a way to get an array, or i made the node myself 🤷 apparently neither... guess i'm turning dumber

ah

Convert Spline to Poly Line is what i used

which is pretty much the spline points without the spline curving, which would however end up being okay in that case

[elder lodge]

I've noticed this does work with a Pawn instead of a character, though?

[spark steppe]

it's probably the control rotation from the player controller

eventually you can disable it in the player controller, not sure

[elder lodge]

I was digging through the Character to find a bool for something like that but wasn't finding anything
How do I get the parameters/details for the PlayerController?

[spark steppe]

the problem is in the player character tho? this is not about an NPC?

if you don't have a custom class for the player controller make one which inherits the PlayerController from UE and set that as player controller class in your character and/or world settings/gamemode

uhm, or wait

check the "use controller yaw" thing in your character

i think that might be the setting that i was thinking of

and maybe "use controller desired rotation"

[elder lodge]

Yeah, I'm using the player character

Not seeing those tho

I'll try lookign at custom player controller

Tho it does seem to all work fine rn with just Pawn and FloatingPawnMovement

[glossy crest]

how would i fix this?

trying to get the name of a object from a actor to set it as a text in a interface

[spark steppe]

well it doesn't have character as parent class

so what is your player? if it inherits from pawn or similar you can use get player pawn

[glossy crest]

the parent class of the thing i am trying to get the value from is a actor

[spark steppe]

no

in the screenshot you are trying to cast the player character to whatever this is

[thin panther]

Aka, you're asking "Is my player character a 'Masseys'"

[glossy crest]

ohhhhh

so what would i have to set the object to

[thin panther]

A reference to a "Masseys"

[zealous sedge]

I have this script to move my players camera backwards when they hold down shift. It works, but the camera doesnt move relative to the player, so you can look around without the camera moving around the player when it is in action and when it is finished. How would i make it so that its still attached to the player when it starts and ends

[glossy crest]

i think ive done this wrong but

[thin panther]

You have indeed

[glossy crest]

im new to ue so idrk what im doing

[thin panther]

You should probably take a watch if the blueprint communication video in the pins to demystify a bit of what casting is and how to reference objects

[glossy crest]

ok sounds good

[elder lodge]

Jeez, feeling silly now. Clicked around Character Movement but never clicked on the topline BP_FirstPersonCharacter, unclicked "Use Controller Rotation Yaw" and now it works.

I thought all the movement logic would be contained in the component, that was extra confusing

Doesn't seem intuitive to me taht there would be extra parameters/details that can't be found further down the tree.

[thin panther]

Well that's because inheriting controller rotation has fundamentally nothing to do with the character movement component

And the CMC can't magically show properties for things it doesn't have either

[fervent bramble]

Any idea why this isn't working?

Cast fails everytime

[thin panther]

You must not have set that BP as your character in the game mode

[fervent bramble]

In the player controller class?

[mental trellis]

No

[fervent bramble]

Or are they talking to someone else? 💀

[mental trellis]

The pawn class.

[thin panther]

Yep

Right there, a big ol' None

[dawn gazelle]

Get Player Character 0 returns the possessed character of the player controller. If your game mode isn't spawning a character, then you'd have to spawn it and possess it yourself. If you're not spawning and possessing it yourself, then Get Player Character 0 will return nothing.

[mental trellis]

Just never use get player character 0. Ever. For any reason.

[fervent bramble]

What should I use instead?

[dawn gazelle]

In widgets, you do have access to Get Owning Player Pawn, but that too would require that the player controller actually has a possessed pawn.

[fervent bramble]

I'm basically trying to change a Sensitivity int inside the Player, but this is a main menu and I wasn't spawning the player in the first place

[thin panther]

That's why then

How can you change something in something that doesn't exist

[dawn gazelle]

In b4 but the blueprint exists.

[spark steppe]

WHY

i use it all the time, i don't see anything wrong with this in a single player game?!

[mental trellis]

Because it's lazy coding and will lead to issues.

[spark steppe]

like?

i got 99 problems and get player character 0 ain't one of them

[mental trellis]

The moment you start doing MP and you forget to use one of the good methods, you've now got a bug you can't solve.

[fervent bramble]

I do plan for this to be multiplayer 💀

[dawn gazelle]

If you want a setting that is set before the actor spawns, then you'd have to save that setting in something external to the actor. Like using a save game and when you spawn in your character, loading the value from the save game.

[mental trellis]

It's about good coding techniques that aren't prone to failure.

[spark steppe]

alright, for multiplayer it's dangerous, but single player!?

[mental trellis]

You can do Get All Actors Of Class too. But that's also shit.

[fervent bramble]

Ah okay, so should I store this in a SaveGame class?

[thin panther]

Then you need to do it from the start

[mental trellis]

Do whatever you like Ben, it's still bad.

[thin panther]

There's no adding multiplayer later

[fervent bramble]

Ah geez okay

[mental trellis]

Well, you can, but you'll have to redesign every single class from scratch because of things like "get player character 0" and all the replication issues you will run into.

[spark steppe]

i agree it's a lazy way of not always passing a reference around

[mental trellis]

It's just a terrible idea.

[spark steppe]

but since i know that the PC0 is always my player....

[mental trellis]

You don't even need to pass references around.

You can always get teh local player using the local player subsystem if you have to.

[spark steppe]

oO now how is this different from get player character?

[mental trellis]

Because the local player subsystem actually keeps track of the local player controller for you.

[spark steppe]

i'm still only concerned about single player

i agree with you for multiplayer games (or anything that uses replication)

[mental trellis]

☝️

[spark steppe]

maybe i should check how the local player subsystem works

[mental trellis]

It's the equivalent of using globals in c++. Epic does it all over the place.

They're now having to backtrack 10 years of techdebt because they were shit.

[spark steppe]

actually i think it's worse 😄

[mental trellis]

Then maybe local player subsystem isn't the way. I've never actually looked at it.

[spark steppe]

i use this macro 😄

[mental trellis]

But there is a better way.

[zealous sedge]

can anyone help with this

[spark steppe]

local player subsystem sounds like something which is just a global subsystem to wrap the global getters 😛

haven't looked at it yet, but my guess is that it does the same

[mental trellis]

It's a subobject of the local player for your system.

[spark steppe]

yea there's not much going on in the class, wonder how this is tied to a specific player

for e.g. split screen games

[mental trellis]

(and the local player always knows what your player controller is)

For split screen there are multiple local players defined.

Each one has its own player controller and local player subsystem (I think)

[spark steppe]

and it keeps track of the player possessing different pawns?

[mental trellis]

It only tracks the player controller

[spark steppe]

it's confusing me, the thing gets tied to "something" and returns the outer

[mental trellis]

The outer is teh local player.

ULocalPlayer which knows about your player controller.

[spark steppe]

yea that looks like a cleaner solution, wasn't aware of it before

most of the stuff seems to be in ULocalPlayer

[mental trellis]

Should be easy to update your macro too!

[buoyant halo]

My widget in my object's BP open's it's doors.
How can I get the widget to only open it's own BP's panel?
I just can't figure out a way to isolate itself from the array.

[spark steppe]

by not calling it on every actor of that class...

pass a reference of the actual pipe thing to your widget

[buoyant halo]

Thank you.
I'm don't know how to do that, but now I've something to search for

[ornate kraken]

Hello. Does anyone know how I can add images to a data table faster than adding them one by one (maybe using BP or something)?

[sage dew]

Hey everyone, I'm brand new and just trying to follow some tutorials to slap together a prototype flying game. Rn I'm using the flying template and it's flying pawn for the basis, with a directional mouse aim added following a tutorial about freelancer style mouse aim. However the tutorial is old and doesn't give any troubleshooting tips on how to make the dead zone centered. Currently it's way off to the upper left and I don't know if I can just adjust some values or if I need to put new nodes somewhere in the blueprint. The current blueprint looks quite similar to what's described in this post https://forums.unrealengine.com/t/need-help-with-movement-controls-for-flying-in-direction-of-mouse/232121

And the tutorial I was following is this one https://youtu.be/3hBxGasGVyI?si=liTjM-MGL2bQDl6D

[faint pasture]

Spring arm component, look at the default 3rd person template.

[zealous sedge]

I got a better result by just easing field of view but thanks anyway

[ember lichen]

How can I set a static mesh from another blueprint?

I tried to make a function, or casting but couldn't figure it out

[trim matrix]

hey does anyone know how i can make the hover option show on my buttons images? i made the alpha 0 to make the button backgroun colour transparent, does anyone know how i can make the image itself have the hover feature? its currently a child of the button

[spark steppe]

i don't have UE open right now, have you tried to mess with the alpha of the brush/tint color?

one of them should also affect childs of the button

[faint pasture]

BP1:
Get a ref to BP2 somehow (however you want) and of the TYPE that contains the mesh (this is where casting might come into play if you need to go from a more general type to a more specific one)
Set the mesh

HOW do you want to get the ref? Does it just know about it all the time, is it based on a collision or a trace, or what?

[ember lichen]

I'm pretty new to Blueprints so I'll try to explain what I'm doing. I would like to randomly select a static mesh for an obstacle/map chunk, then spawn it. I'm doing this all in the gamemode, and trying to call a function from my obstacle blueprint that changes the mesh, I can't figure out how to cast from my gamemode into my mesh because I just get "MESH" does not inherit from "Game mode Base"

[faint pasture]

Start with knowing what casting actually is.

[spark steppe]

that sounds like you want to spawn an static mesh actor, which gives you the actor reference, then you can call set mesh on the static mesh actors mesh component

[faint pasture]

It's not what you think it is

[trim matrix]

i believe it was the alpha

[spark steppe]

yea, but there are like 3 color settings for buttons

background color, tint color, brush color

brush color is most likely what you want to modify

[ember lichen]

I'll watch a video on casting then, I definitely don't understand it atm

[faint pasture]

Casting is a question/conversion: "Is this object an instance of X class? If so, let me treat it as one so I can do X class things to it."

You have an Animal, you want to make it Bark.
Animals don't bark, but Dogs do.
You cast your Animal ref to Dog to see if it is one, and if it is, then you can call Bark on it.

[trim matrix]

ahhh alright, so do you know what i will need to do witht he brush colour to modify it into being a hover?

[ember lichen]

Alright I get it

[spark steppe]

set it to alpha 0.5 for example and to alpha 1.0 in the hover settings (if there is a hover setting for the brush color...)

[trim matrix]

i will try

i dont even see a brush section

[spark steppe]

wait, i'll start UE and check if i talked bs

guess i did, sorry

[trim matrix]

thats alright 🙂

[spark steppe]

what you could do is, set it to Draw As Image

then the tint would affect the texture which you select

so you would remove the inner image and let the button draw it

that however also requires that you update all the states to the texture, otherwise it might switch back and forth between image and plain button

somewhat like this

[near shard]

Does anybody know if I can create an actor (or some other blueprint class) that uses points to draw an area that I can then reference?

SOmething like Id want the character inside the area to ONLY move within the area

Not sure how to start

[spark steppe]

depends...

guess you could use geometry scripting with complex as simple collision (if you keep the poly count reasonable)

[mental trellis]

There are functions to triangulate a series of vertices in the engine... but not for BP

[spark steppe]

eventually with a spline as reference (which is set to loop)

so you can't just generate some planes from BP?

thought geometry scripting added that

https://docs.unrealengine.com/5.0/en-US/geometry-script-reference-in-unreal-engine/ that looks like it does support it from BP!?

[trim matrix]

thank you 🙂

[spark steppe]

Append Rectangle

Appends a planar Rectangle to a Dynamic Mesh.

This does introduce potential problems with huge meshes dramatically increasing the size of the level file. However, with One File Per Actor, the mesh data will be stored with the OFPA Actor file, rather than the level (so, still potentially huge, but in a separate file).

gotta love those sidenotes 😄

[tame shore]

Hey, can someone help? im not pretty sure where to ask for help on this one, but yet im using TTPS template and i dont know what i activated but this sort of Capsule debug collision appeared? and i dont know exactly how to desactivate it, sorry for bad english and if im not in the right place

[spark steppe]

in the viewport there's a mini menu on top, click on show => collision

or ALT + C

[tame shore]

Can you tell me exactly where it is? bc the command dont work and i been using unreal only for a week now

sorry for bothering you

[mental trellis]

I mean from a series of vertices to a plane. Maybe you can now!

Can't see a function for it.

[spark steppe]

yea seems like there's no PolyLine like thing, but for what he needs some planes or tris should be sufficient?!

[mental trellis]

You seem to have to know the triangles beforehand, rather than it triangulating for you.

[spark steppe]

but from the drawing it looks like he "knows" or wants to define the vertices

[mental trellis]

Vertices != triangles

[spark steppe]

what i'm thinking of as solution was.... think of a spline flat on the ground, then you grab those spline points and generate planes upwards from them (walls basically)

the height would be some arbitrary fixed value

if you just follow the spline points until you reach the start, then it's like a polyline

so you have point 0 and 1, then you add height of 200 to 0 and 1, which gives you 0,0, 0,200, 1,0, 1,200 thats plane A, then you do the same on 1,2 ... 2,3, .... until you reach n,0

[zealous moth]

Can this be done at runtime and saved?

As it's own shape for later use

[spark steppe]

apparently it's saved in the level

but you can pretty sure convert it to a static mesh (asset) in the editor

[zealous moth]

I would need to look into it but I am hatching an idea. Do you have the keyword for documentation?

Append poly?

[spark steppe]

apparently you can also use Create New Static Mesh Asset From Mesh so you could even script asset generation 🤔

[spark steppe]

i just linked the whole geometry scripting reference above... #blueprint message

[zealous moth]

Gotcha ty

[elder lodge]

Putting together a zero-g environment with magnetic shoes to walk on surfaces; given the local Up Vector of the actor and the normal of the surface, how do I rotate the actor so that they align?

will i have to use quats and lerping

[pallid thorn]

Hey guys,

So I've recently begun work on my first fps level project, but have run into several problems. I swapped out the firstperson arms mesh for a third person skeletalmesh so the player can see their body if they look down. However, the BP_weaponcomponent from the starter content rifle now has a blueprint error, as the firstperson mesh is no longer present. I have tried swapping the first person mesh node out for the equivalent skeletal mesh node, but while the compile works, picking up the gun only results in the gun floating at the bottom of the character mesh. This might be a simple fix, but was curious how I should go about addressing this?

[dawn gazelle]

Does the gun move along with the character mesh at least?

Ie, you move right it moves right too?

[pallid thorn]

Yup that’s correct!

[mental trellis]

I'm going to say yes. You're not going to get anything useful out of rotators unless you stay vertical.

The CMC also craps out if you aren't vertical.

[elder lodge]

Find Quat Between Normals? Seems like it's working-ish, but seems to drift in its rotation as I repeat it.

[mental trellis]

No I mean, if you aren't on a flat surface (rotate the character) then teh cmc will put the character vertical again when it moves. That or my friend did something super wrong.

[elder lodge]

I've already got the zero-g movement and rotation the way I want it; so I don't think the CMC is interfering anymore; AFAIK it is snapping based on how I tell it to snap right now

[mental trellis]

That's cool then!

[elder lodge]

But I'm not sure that's the right quaternion operation, because it works sometimes but not all the time

findfloor isn't doing anything rn trying to look up the implementation to see how it works

[mental trellis]

I would do get world rotation, not relative rotation.

But I don't think that's an issue.

[elder lodge]

oh that makes sens i think if both of the original vectors are world

Totally it

[dawn gazelle]

Then you'll likely need to look into making sure the weapon is attached to an appropriate socket on the character mesh. You'd have to open up the character mesh, ensure there is a socket somewhere in the hand bones, get the name of it, and find the node that is attaching the gun to the mesh, and modify it so it is referencing the correct socket name. If there's no socket, then it's something you'd have to add and position yourself.

[elder lodge]

Now I need to make it lerp

[mental trellis]

The relative rotation of the capsule should be the same as teh world rotation as long as the actor isn't attached to anything.

The capsule is the root component, right?

[ember lichen]

This doesn't change anything on runtime.Trying to randomly generate either a cube or cone

[mental trellis]

"Change anything"?

[ember lichen]

It doesn't change the static mesh, it keeps it at a cube

But both end up running, I watched it while playing

Would changing it before spawning it leave it at a sphere? Or would it just go back to what the blueprint is before spawned

[elder lodge]

Yes, that's true... but it is behaving differently now, so ??

[mental trellis]

Shrug

[elder lodge]

well, thinking about it, it would make a difference. Turning 90 degrees to the right in world space is different than from local space.

if i'm upside down or lying down, etc

[mental trellis]

Not if local space is world space.

As it should be with a capsule not attached to anything.

The local space of anything attached to the capsule obviously changes, though.

Well

The local space of the capsule to itself is obviously always 0 😛

[elder lodge]

lol exactly

[mental trellis]

And input occurs in that space, not in world space.

So, yeah, I think I misunderstood what you first said!

[elder lodge]

ah well. i'll look at how to lerp rotation in the morning

[mental trellis]

Anyway, you want to apply the local input rotation quat to the world quat.

Input x Capsule

Most-local always comes first.

[pallid thorn]

Forgive my inexperience, but where would I go to find the hand bone sockets? Would it be in the skeletal mesh details?

[mental trellis]

You see the little folder with the magnifying class under your mesh on the right? Click that and then open the mesh in the content browser.

[pallid thorn]

Ohhhhh okay thank you!

So in the skeleton tree, I'm seeing a bone called ik_hand_gun, would that be the socket I am referencing in the blueprint?

[mental trellis]

That's a bone, rather than a socket. I think?

A socket is attached to a bone or a mesh.

...I don't really do graphics...

[pallid thorn]

Oh yes that makes sense. I'll keep looking. I appreciate your help!

[ember lichen]

How can I spawn an actor, set its static mesh to a random one, then have it STAY as that mesh

This changes the first one only, and the get All one will change all of them repeatedly

[solar sequoia]

I guess I might be misunderstanding the question to some extent, but you're not trying to set the static mesh so that other actors spawned from that class will use it, are you? That wouldn't work because you're only setting a variable of an actor created from that BP class; all actors created from the class will continue to use the value that's selected in the BP itself

[ember lichen]

I’m trying to spawn in an actor, then immediately change its static mesh

Which I’m starting to think it might just be better to spawn an entirely different BP, but I can’t figure out how to set up my array to accept 2 different BPs

[lunar sleet]

You have a Construct graph, use it.

[solar sequoia]

I would say not to use the "Get Actor of Class" node for this. It's probably getting the same actor every time, which would be your issue

[solar sequoia]

I agree. This really seems like something that should be done on an individual basis for the actor being spawned, aka at runtime in its own BP

[ember lichen]

Yeah that is the issue. I was trying to find a way to get the last Actor, not the first

I’ll try a different approach because this doesn’t seem ideal

[solar sequoia]

It's just not a good way to do it anyway. Maybe if you explain the use case a bit more I could help you figure out a better way

[lunar sleet]

Get actor of class is only seldomly the right choice, it’ll get whatever actor it finds in the world first with no prejudice

[solar sequoia]

it's very very niche yeah. It grabs the first one in memory, which is sometimes the most recently spawned and sometimes another random one

[lunar sleet]

If you want to change every actor use get all actors of class and a for each loop, but if it’s a specific actor you want to change, you need to get a ref to it with some form of interaction, be it a line trace, an overlap, etc

[ember lichen]

My end goal here is an infinite world in one direction (think subway surfers but less restrained on movement). This blueprint is supposed to spawn the next ‘biome/chunk,’ BP

[lunar sleet]

Ah proc gen

[solar sequoia]

question, then: Why would the BP for the "chunk" not contain this logic to be run as it's spawned?

[ember lichen]

first attempt at it so lots of learning

[lunar sleet]

Well bear in mind there’s a #pcg-framework system and a GDC talk on how Warframe does their level generation iirc

[ember lichen]

It had problems on it for some reason so I moved it to the gamemode

[lunar sleet]

But in a primitive form, you can just iterate over an array of different meshes and pluck one out at random

They can each be in an actor if you want

[ember lichen]

Does the PCG Framework plugin have options for that? Or is it worth using in this case?

[lunar sleet]

Idk enough about it but that channel has resources

[tawny patio]

I have this enemy count in my enemy bp so that when it dies it +1 on the counter but it only shows 1 everytime I killed an enemy. This should be easy but maybe im not getting it.

[dawn gazelle]

Your enemy blueprint is a template for an enemy. By defining a variable on a blueprint, you're saying that it can contain a variable of that name.
If you spawn two enemies from that blueprint, they then both have their own copy of that variable, and each would be setting their own value +1 when it dies.
If you want to keep track of how many enemies are killed, you'll likely need something external to the enemy itself to keep track - it could be your player character, it could be the game state or game instance, but the variable keeping track shouldn't be stored on the enemy that is dying.

[pallid thorn]

So I was able to create a new socket on my skeletal mesh's hand, but now what happens is I pick up the rifle and the character carries it around at their side, holding it but in a typical unarmed walk cycle. I'm assuming that I have to bring in an animation of some sort, but not sure where to start.

[tawny patio]

Watced a yt vid and saw exactly what you mention, thx again.

[dawn gazelle]

If you attach the socket to the appropriate bone, it'll animate along with the mesh. This is also more of a #animation issue than it is blueprint. So long as you're getting it attached to the character and it's going to your socket correctly that's all that #blueprint is really meant to help you with.

[storm shale]

Hii, am trying to use soft references but in the reference viewer they're treated as if they were hard references. Does anyone have any insight on this?

[pallid thorn]

fair enough, thanks for pointing me in the right direction!

[storm shale]

for further context, it's happening on my Player Controller. And I just did a simple test, created a new object, called it 'Test' Created a variable in my player controller of a soft reference of that object. Saved, and it shows the reference is a hard reference instead of a soft reference.

[dawn gazelle]

Does the reference viewer actually distinguish between hard and soft like that?

[storm shale]

It does have a toogle for it

[dawn gazelle]

Doesn't have it in UE5... Lemme see my UE4 project

[storm shale]

rip

[dawn gazelle]

Ok, so yeah, I get the same behaviour in UE4.
I think they may have put that there thinking it was a good way to differentiate, but in reality your blueprint would need a hard reference to the other asset to even know that it exists in order to say that it's a soft reference to that thing. That'd be my guess as for why they removed it in UE5.

[storm shale]

https://medium.com/advanced-blueprint-scripting-in-unreal-engine/object-references-in-blueprints-4c0df7f4dc1d

Do you have any insight into that? Cuz if there's no way to differentiate soft vs hard references it doesn't make sense the stuff that is written there. Cuz there'd be no way to ever have the graph not reference everything in your project as a spider web

since u'll always at least need a soft reference to something

[dawn gazelle]

Ok.. got it to work in UE4. You need to make sure to save the asset containing the reference and reload the reference viewer. I was able to get soft refs to display properly.

[ebon olive]

Hi why my line trace isnt showing on test gameplay? 😦 i put it as for duration under line trace

is this a bug?

[mental trellis]

Are you facing forward +x?

And I assume that node you cut off on the left says "get actor forward vector"

[buoyant halo]

Is this an efficient way of controlling my panel door?
Panel has a widget button to open/close

[ebon olive]

yep it is that node.
yep im facing +x

so lost !. i thought i did everything right =x

[mental trellis]

Don't multiply by 200,0,0. Just multiply by 200.

vector x float

But if you're facing +x it won't matter too much.

[mental trellis]

Seems fine

[steady night]

is this the best way to "Destroy" a widget ?

[mental trellis]

You'll need to set the value of your variable to 'None' too.

The widget still won't be immediately destroyed. It can take up to a minute.

[modern radish]

does anyone know if it's possible to create a Landscape through blueprints, or editor blueprints more specifically?

I want to make a menu that adds a "template" landscape to a level, with my pre-defined settings such as size, material etc

[undone siren]

hi is there anyone who knows about buttons and player camera movement? if yes please reply to this with a ping or dm me i need help with a game im making (sorry im new to ue4)

[uneven geode]

how about you ask the question directly xD @undone siren

[undone siren]

im trying to make a camera movement system like fnaf

basically i made 2 transparent buttons on the left and right and when they are hovered over by a mouse the camera rotates 90 degrees

i want to make it so that when the player is at 0 degrees (facing straight) he can also have another button at the bottom to turn 180 (basically flip to behind him) instantly

to be more specific its similar to fnaf 4 where hovering over the bottom of the screen will make the player turn towards his bed behind him

note: my game is not fnaf related but the gameplay is inspired from fnaf

[fervent lantern]

I cannot for the life of me figuire out why this isn't working and I need some help. The blue thing is supposed to be activated when it overlaps with the yellow electricity but it just isn't despite the fact that their collision says they should

and thats the collision of the two

Please someone help me figuire this out

[vast stream]

Try changing Object Responses -> Block to Overlap

[fervent lantern]

Unfortunately, that didn't work

[dreamy mountain]

Hey, how would I rotate a pawn to face the player always?

[sharp dagger]

Hey, was hoping someone could point me in the right direction. I'm trying to add some camera "movement" to a 3rd person camera during animations - I want to have them follow a certain path depending on what animation is triggered. I think it'd be something akin to splines but ones that are relative to the pawn. Is there any functionality I'm not aware of that could help me with this?

[idle notch]

Hey guys, can someone help me with a simple ( i think) question?

I wanna make a game like Knights of Pen and Paper 2

What class would you use for the characters?

[lofty summit]

Class?

Pretty sure Blueprint doesn't have classes and C++ does

[earnest tangle]

BP actor assets are more or less same as classes in that sense

Character or PaperCharacter could be options for it

[idle notch]

Thank you very much mates

I'll try it out!

[lofty summit]

cool

[zinc flicker]

I tried for some hours to make my camera work after "Set view target with blend" in an actor.

https://www.youtube.com/watch?v=gHJ4pHlqAzQ

I followed that tutorial but everything works beside the movement of the camera inside the locker. I tried multiple things, like changing the locker from actor to pawn or character, trying to possess the locker, but what ever i do after i use "Set view target with blend" i can no longer look around freely with my mouse.

If i leave the locker everything works fine again just inside the locker i cant freely move my camera.

Is there a way i maybe have overseen?

I used UE 4.27

[hexed cosmos]

Hi
How can i make my rotation smooth?
here is my blueprints

[lunar sleet]

Make sure both objects are set to overlap the object type each of them is respectively and that generate overlap events is checked on both

[lunar sleet]

Lerp with a timeline

[hexed cosmos]

what do you mean "with a timeline" ?

[lunar sleet]

You haven’t used a Timeline node yet?

[pine hatch]

Hi i got a Blueprint which contains a lot of static mesh .. in the construction script i put those static meshes in to an array.. in a custom event i iterate trough the array and try to scale it up from 0 to 1 all the static meshes one by one.. but it only doing it with one mesh not the other ones.. i thought that the for each loop go trough the full array but in my case it stops after the first element..
My goal would be that i have a wall bulided up with triangle planes.. the triangle plains should appear one by one by scaling them up preferably from bottom to the top but at this point i cant mannage to do it in any order..

[pine hatch]

in my second picture you see the timeline xD

[lunar sleet]

For each loop executes in one tick

Your timeline won’t have enough time to complete more than once

[pine hatch]

ohh i see .. do you have maybe any suggestion how could i do this ?

[dreamy mountain]

How would I make an actor face the player?

[lunar sleet]

Find look at rotation

[lunar sleet]

🤔 I’ve seen people recommend making your own custom for each loop macro

[dreamy mountain]

I tried using it but it didn't work

Sorry for photo instead of screenshot, on college pcs

Discord is blocked lol

[lunar sleet]

It’s prly the RInterp, it never does what you’d expect

Test it without

[dreamy mountain]

Ok, but then I can't connect the return value to anything

[lunar sleet]

Btw since it’s #gameplay-ai , if you use a BT it comes with its own rotate to face bb key and move to tasks built in

[pine hatch]

ok that seems beyond my knowledge.. but thank you ..

[lunar sleet]

Yeah you can just break the struct pin

[dreamy mountain]

Yeah, just remembered

Still doesn't face me

[lunar sleet]

I’m thinking

[lunar sleet]

Use breakpoints to make sure the event actually fires and if it does drop, hover over the output pins to see what comes through

[dreamy mountain]

Got it

I hadn't connected the pin on moveto

[trim matrix]

give me a moment, i'll show u

(my editor is still loading 🙂 )

[pine hatch]

thank you

[trim matrix]

double click on the for each loop to open it up

[pine hatch]

yep.. shouldnt i make a duplicate before i mess up engine content?

[trim matrix]

then duplicate it and name it "ForEachLoopWithNext"

[pine hatch]

ahh ok xD

[trim matrix]

also add a new input "Next"

with the type Exec

break that link

and connect the Next input into the same branch the exec output of that Assign was previously connected to

[pine hatch]

do you mean like this?

[trim matrix]

no the next should go to the branch

[pine hatch]

like this than..

[trim matrix]

yep

[pine hatch]

thank you i try it

[trim matrix]

it will execute once when you run the Exec pin of that node, and then every time your timeline finishes the the Next pin should be run

[pine hatch]

so should i connect the end of execute to the next node ?

[trim matrix]

connect the finished to next

[pine hatch]

like this?

[trim matrix]

no, the Finished output of the timeline

[pine hatch]

or the timelines finish node

ok

it works thank you.. now i just have to figure out how can i do the scale up from bottom to top .. but thank you again .. you helped a lot

[frozen spruce]

Hello, i've a problem on the uxtpressablebutton if someone can help me. When i am in the simulation, I can't click it, it seems like the button don't interact with the hand...

[trim matrix]

Is that a 3d widget?

[trim matrix]

Add a widget interaction component to your vr hand

[cinder thunder]

I am putting a 3 second Delay at the end of my custom event , but when I call the custom event from the level blueprint, the rest of the script in the level blueprint continues without the 3 second delay. Is there a way I can make the Delay from my custom event affect the level blueprint?

[sand yacht]

hey, is there a way to get the local sunset time?