blueprint

[robust flicker]

When I connect Draw Spline, the entire movement function stops working for me.

[lofty rapids]

when should this trigger ? is this your movement ?

it says actor deselected

so does it fire when you click on something else ?

put a print string of works, or hello tight at the beginning of that event

so you can see when it fires

[robust flicker]

No, the function doesn't work at all from the start, it works when I have "Draw Spline" turned off, and the character only moves along the cells in the grid I created.

[lofty rapids]

as far as that event goes i would check when it fires off, and also check the branch if it's false or not

debugging usually helps

but i don't even see where you fire off this event so i don't know when it should be running

either way some print strings will help you see if it firing

this way you can see if it's the event not firing, or the branch going to false if it is running

the branch checks if the component has tag gridToMove which i'm guessing is how you setup your grid only click to work

as far as no on the print strings, i mean it does show whats going on but do whatever you like

maybe you can use debug as well see what is and isn't running

[robust flicker]

Thanks, I'll try.

[lofty rapids]

if the event isn't firing you do one thing, if the branch isn't working you do another

it's just standard debugging

i prefer print string, but some people use the actual debugger and trace where things go

debugging is essential, its not so often the problem is obvious

[random pulsar]

hello for everyone

can i get some help regarding vfx?
when i dash i want to spawn a niagara system like a trail ,but i didnt succeed with this setup(i know the nodes are disconected)

[undone sequoia]

why even when I set here any trace channel this trace is detecting literally everything on map?

should not it trace only picked one?

[lofty rapids]

did you default destructible to block ?

if you want it to work on just one thing, default it to ignore, then set it to block on the thing your trying to hit

[lofty rapids]

did it not spawn at all ? did you check 0,0,0 ?

[random pulsar]

i think the main issues is i cant understand how to set the Dash End Location
so i launch the character then set its end location ,but he already made the dash so first point cannot be identified or something

idk

i think of an idea maybe have a component that draws permanent a trail after player movement
but enable it when he makes a dash and disable when he does not

[lofty rapids]

maybe justt guess the end

if your hardcoding the dash

then you can pretty much say its x or y length

just a bit of trial and error

possibly use velocity and direction of character

after you dash, you may be able to check velocity and calculate something using that

[dark drum]

Maybe this could help? Have a predefined end distance, plug the start and end into this to get the desired launch velocity.

[random pulsar]

this would help with dash or with vfx?

[trim matrix]

hi, im trying to make a lazer tag minigame, i have this setup just using the weapon component but the line trace has an offset it dosnt ever shoot from the gun and i wasnt sure how to go about fixing that, ik its prolly something stupid but 😭

💀 why did it crop the video

[dark drum]

Both. You can pre calcuate the start and end which can be used by the VFX and the velocity you use for the launch.

[dark drum]

Where you multiply the forward vector, you need to add this to the starting location to get the end location.

[trim matrix]

like this?

[dark drum]

yea

[trim matrix]

it still seems slightly offset

[lofty rapids]

because your not shooting from the gun, your shooting from the center of the camera

your whole gun is offset, is this the template ?

[trim matrix]

yea

[lofty rapids]

right so if you notice the gun is offset, what are you doing with the trace is this supposed to be the shot ?

[trim matrix]

i tried using it from the gun and it started tracing behind the player

[lofty rapids]

what are you shooting ? thats not a projectile ?

[trim matrix]

its setting scale of a cube, im not shooting anything

[dawn gazelle]

Were you hoping that the laser would be travelling to the hit location from the trace?

[trim matrix]

yes

[dark drum]

Starting a trace off center is tricky as it results in a few problems. Tracing forward will never hit where the center of the screen as distance starts to be a factor.

You kinda have to do 2 traces. An initial trace from the center (what you currently have) to get the end location of the 2nd trace. The second trace can start from the end of the gun to the hit location of the first trace.

You can then add some additional things like rotating the gun to face the initial hit location as well.

[dawn gazelle]

Here's an image to indicate part of the problem if you're not manipulating the end point of your laser or rotating your gun so it aims at the target location from the camera.
Another issue is if you just change the end point of the laser, it'll look strange as the beam won't look like it's coming straight out of the gun.

The red line is the camera trace, the green line is the laser 😛

[lofty rapids]

would of been nice if the gun in the template pointed at the center of the screen lol

[dawn gazelle]

It does at some point.

[trim matrix]

so, next step is another trace?

[lofty rapids]

oh right, that makes sense it's just far out

[dawn gazelle]

https://tenor.com/view/far-out-head-nod-nod-sick-cool-gif-12044198

[dark drum]

Yea, something like this.

[maiden wadi]

It's fine. Popular games have gotten away with shooting literally from the middle of the screen before.

[trim matrix]

how do i get the barrel location, where am i setting that at?

i have a scene component added to it, would getting the location of that work? or am i wrong lol

[dark drum]

You'd get that yourself, put you could place a socket on the mesh and get the socket location.

[trim matrix]

like this?

[lofty rapids]

whats the goal ? you want to shoot at the point straight from the camera ?

[trim matrix]

yea

[lofty rapids]

your not shooting a projectile tho ? you have some sort of block your scaling ?

so you want that to hit the center ?

[trim matrix]

yes

[lofty rapids]

what did you do just add the block to the gun ?

[trim matrix]

yea with a pivot point on one of the faces, and then when u shoot it scales it on the y based on how the line traces distance to wall

only other issue i see w doing it this way is the line trace can hit walls far away, but the mesh wont scale that long so sometimes youll shoot and it wont show the lazer bc of that

[lofty rapids]

your weapon is placed in your firstpersoncharacter ?

so you don't have to pick it up ?

[trim matrix]

yea

[lofty rapids]

ok so one good thing if you want to do that second trace i think thats right what they were mentioning

as far as i think you did it right you just used this lazer thing for the start right ?

[trim matrix]

yea

[lofty rapids]

but usually you have to add start to end then plug that into end

but if it works then thats good

but what do you want to happen the gun to turn ? or just the shot

you can use the lookat rotation from the lazer to the end of the first trace

then rotate it

[trim matrix]

thats working now, but the issue of the trace hitting walls too far away and the mesh not scaling, but i feel like if the trace isnt long, the lazer wont shoot as far, giving the player kinda a shittier radius to have to be rly close to others to get them

bc like, the line trace is hitting this back wall, but the player isnt close enough for the lazer cube to scale with it so it just stays hidden

[lofty rapids]

where is that line comming from ? lol

i c so your lazer thing only works so well

thats odd, your saying if it goes to far then it doesn't scale ?

or it just does nothing ?

[lofty rapids]

somethings definately off with your trace for one thing

but i'm not sure thats a great way to make a lazer

[trim matrix]

was the only way i could fin online 😭 💀

[lofty rapids]

i would shoot from the center, get the endpoint, rotate the lazer, push it out halfway forward

because your size is going to be actually half

it scales both ways

[trim matrix]

its only scaling the one way tho

[lofty rapids]

oh nice

weird it's not showing up is it a plane ?

[trim matrix]

no its a cube

[lofty rapids]

i would rotate with lookat if you want it to hit center

shoot your first thats find, then take the endpoint and rotate your lazer to the lookat

another thing i would do

just make the lazer a huge length

and make it visible/hidden

so it doesn't require you do to a distance trace

might not work with collisions after a wall

but i think your block hit is the first one anyway

that second trace

use that for the collision

but you need to shoot from the lazer position to the end point

thats what i would do

that would be your hit of target

and the lazer would just keep going for however size

[trim matrix]

so this?, and i made the lazer hude already, now im confused w lookat

[lofty rapids]

ok so now you have a straight trace from the camera to center correct ?

[lofty rapids]

what bp is this in ?

[trim matrix]

weapon component

[lofty rapids]

so you see the location from the break hit result ?

i believe its find lookat rotation

or something lookat

it takes a start and a finish

[trim matrix]

this is what its doing rn, i just added the delay and re set visibility to hidden again

[lofty rapids]

well for one thing the line trace doesn't look like its hitting center but i could be just seeing it off

but the lazer still not showing up every time also ?

[trim matrix]

the trace is centered more than it was

[trim matrix]

yes

[lofty rapids]

with the lookat, the start is the position of the lazer and the end is the location from the hit result

and then you can rotate the lazer using that

it should point to the center

[lofty rapids]

thats weird you just made it big, maybe make it taller, you may be just too thin i thought it was a plane

or the delay is just too fast

and it's shutting off

you may want a retrigger delay if i remember correctly

so it only happens when your done shooting

you can fix the scale thing so it only goes to say a wall and not through once you figure out why it keeps disappearing

once you get it working so the lazer shows the scaling shouldn't be an issue, but you should use a second trace for the scaling and the actual hit of your target

this would make it seem like the lazer is shooting from the gun, into the center

[trim matrix]

i made it bigger again and still not every hit makes it visible

[lofty rapids]

maybe the delay is to short

try a retrigger delay so it keeps resetting untill you let go

this way the laser shows up untill you let go

but just as a test a longer delay might help

[lofty rapids]

honestly i think the enhanced input action as completed as well if you click the down arrow ?

[trim matrix]

a retriggerable delay of .05 worked

[lofty rapids]

ok nice

did you rotate it ?

[trim matrix]

no, when i did that it snapped the rotation to behind the player

[lofty rapids]

strange

did you rotate world or relative ?

[trim matrix]

i think relative

[lofty rapids]

try absolute

[trim matrix]

it seeming to look ok without rotation slightly but lemme see rq

how do i get absolute location?

[lofty rapids]

set world rotation

[trim matrix]

its still doing it

i think its fine without i dont plan on the players gun moving more of being attatched to the hud

[lofty rapids]

well your trace and lazer are off

so what you hit with the trace isn't what you hit the lazer

so i would atleast do another trace that is where the lazer go

i would also set the scale again

since you got it fixed and you can now see it

[trim matrix]

where at? 😭

[lofty rapids]

i'm assuming you will have enemies ?

that you want to hit with this lazer ?

[trim matrix]

yea and stage targets that will either be stationary or moving

my thinking was a custom trace or collision channel of "shootable" and set the enemies or objects to have it that way the gun knows if the player gets points or not? i feel like im prolly wrong 💀

i also wanted to add a sprite of the impact point, to the impact point to further sell the visual of it actually shooting the lazer not just making it visible

[lofty rapids]

https://blueprintue.com/blueprint/h1jnsktp/

this actually pointed the block at the center

[trim matrix]

mines not doing that

[lofty rapids]

yes you can do that where the hits on that custom channel are only the enemies

[void crescent]

Did you check the distance in case you did not hit a target?

[lofty rapids]

i also don't know why your scale only goes forward usually it goes both ways but i'm still learning things every day

i put the center at the barrel

[void crescent]

Na works even that way with the "SM_Cube" from the third person level.

[lofty rapids]

ya must be a way to make it work you change the pivot or something ?

that might make it react different i'm not sure

[void crescent]

I've just tried it with that cube scale thingy... works fine. You just have to make sure you do something in case you don't get a hit (like aiming towards the sky) you need some min disctance or it would scale to 0.

[trim matrix]

i copied the blueprint u made and its still rotating it to the side 😭

[lofty rapids]

are y ou using a custom mesh ?

[lofty rapids]

can you show an image of it where it goes ? just don't turn the visibility off, and fire and hit the wall so i can see what it looks like, that is very strange as you can clearly see the way i did it works

[trim matrix]

no im using a cube from the modeling tab the i moved the pivot on

[lofty rapids]

possibly your forward is messed up

x should be forward

[trim matrix]

so i should move the pivot to the x?

[lofty rapids]

however you can make x forward

the red arrow should be forward, it could be pointing in the right direction but your forward is off to the side

looks like your forward now is probably y

and that would make it do that

basically you scaled the y

scale the x instead

[trim matrix]

like this?

shit my pivot is flipped

[lofty rapids]

right thats almost correct but then it would be backwards

when you click on the translate objects, the red arrow should be pointing out

[trim matrix]

i got it to do that now

but its not rotating to the point

[lofty rapids]

you compiled and saved ?

where it's rotating to ?

[trim matrix]

lazer and hit point are two different locations from the look of it

[lofty rapids]

somethings weird about your trace line

[pastel plume]

hi, im very new to unreal and have got a weird bug is anyone free to help

[lofty rapids]

show the code for the trace

[lofty rapids]

usually people just jump right in with the question, definately get help a lot quicker

[lofty rapids]

theres something weird about your screen also

[lofty rapids]

idk whats the issue they should be a straight line from the camera to whats in front

but your lazer looks correct imo

[pastel plume]

basically the player brings a key to a lock and it sends a message to the door bp to trigger an opening animation event
the string after the message prints, but not the one after the event is called
i tried debugging and nothing was flagged. bp names in alt text of image

the interact event is another bpi that handles player interactions with objects

im not sure what ive done wrong bc i did basically the same thing twice elsewhere

[trim matrix]

it happens everytime i have debug turned on with the camera set to 4:3

[lofty rapids]

is hello printing in event interact ?

[pastel plume]

yes

[lofty rapids]

try it different if you can i think your getting a distorted view of what is going on

[lofty rapids]

and door working is or isn't printing ?

[pastel plume]

neither are working

@lofty rapids

[trim matrix]

now its visibly working

[lofty rapids]

well it looks like you call the even from the ref, but for some reason its not triggering are you sure it's the correct event ?

[pastel plume]

100%

i dont use the event elsewhere

[lofty rapids]

what is door ref

make sure it's a valid reference

[trim matrix]

but its randomly shooting behind the player

[pastel plume]

second image

its got the bp_door actor ref or whatever its called

[lofty rapids]

like mentioned you got to do something if you don't hit anything

[lofty rapids]

right, but is it set correctly ?

[pastel plume]

wdym?

[lofty rapids]

you have a door ref variable, when do you set the ref inside of it ?

[trim matrix]

wdym

[lofty rapids]

think about if you shoot at the sky, try to shoot at sky you will see it happens, because there is no hit location, you didn't actually hit anything

[pastel plume]

does making the variable type the bp_door not set it as referencing that blueprint automatically?

sorry if thats ignorant

[lofty rapids]

no it does not, it's just the type of the variable, you have to actually put a valid reference of a door into the variable

[pastel plume]

how do i do that?

[trim matrix]

if i want it to always be visible like how if u were to shoot a actual lazer tag gun in the sky you could still see the lazer, how would i do that if it dosnt hit a wall or target

[lofty rapids]

you would just use a certain distance as the end point

if you don't get a blocking hit, then you can just use the endpoint as the hit location

i think atleast

[trim matrix]

so a branch from the break hit result?

to check and see if theres a hit

[lofty rapids]

from the break hit result, theres blocking hit

that will tell if you hit something or not

[lofty rapids]

you want to open just this one door, or the idea is to have multiple doors ?

[lofty rapids]

on false you want to do find lookat rotation but use the end point of the trace as the target

and do the same thing rotate

[pastel plume]

multiple doors

wait no, i mean

this bp only opens one door at a time

[void crescent]

Use the same value as you used for your trace length (if you use a bigger value you might drill through a wall just a bit behind your max trace length).

[trim matrix]

like this?

[lofty rapids]

what i do for doors is a collision box on the actor, when i collide check for the key

[heavy perch]

hey, did anyone ever ran into an issue of a single widget being stuck around after seamless travel?

[lofty rapids]

https://tryitands.ee/

[trim matrix]

that worked

now trying to check n make sure its not broken in some other way 😭

[trim matrix]

wdym

[lofty rapids]

i would go back to the scale way you were using, this way if you hit a wall it won't go through and you can see it on the other side, slight issue

[pastel plume]

i understand, but what i am trying to do is allow the player to drop the key elsewhere (in the lock) and have the door animation play (which is a wall falling)

[lofty rapids]

is this event in the door bp ?

[pastel plume]

yes

[lofty rapids]

yiou can use self

[pastel plume]

its a timeline

in the lock_bp?

the message node?

[lofty rapids]

oh ok

so there is a lock_bp that you place the key in

[pastel plume]

yes

[lofty rapids]

you would need a way to link the two bp

[pastel plume]

yes

[lofty rapids]

probably i would think a variable

[pastel plume]

yes that is what I have done

[lofty rapids]

some thing like lockid

is the lock inside the door ?

or are they seperate things

[pastel plume]

seperate things

seperate blueprints

[lofty rapids]

then you may have to get all, loop through, find the one

find the one with the variable that matches

[pastel plume]

there is just one door at the moment

[lofty rapids]

right but if you have multiple doors and multiple locks

if each lock and door has a lockid variable

when you put a key in a lock
check the lockid and find the door that matches

[trim matrix]

adding the scaling once again adds the issue of the trace will hit a wall but the mesh wont scale to it till im closer

[void crescent]

If you hit something the distance for your laser is fine. If not (like if you shoot into the sky) the distance might be infinite so you can, in theory, use a big value. Lets say 1000000. I would still use the trace length value to avoid your laser gets to big in case you don't shoot to the sky but make a trace for 5000 that does not hit the wall at 6000.

[trim matrix]

im shooting a wall im like not that far from and the trace is hitting but the lazer dosnt

[pastel plume]

i get it, but my bp_door and my bp_lock aren't interacting

[lofty rapids]

i'm saying how you can get them to interact

[faint pasture]

show your current code

[trim matrix]

the trace is hitting, but not scaling the mesh

weve gone in a circle

[lofty rapids]

i mean i would just work on the scaling when you can, use the solid one for now in the meantime

[void crescent]

I thought you've fixed the issue already?

[trim matrix]

it was fixed till i added the scaling back

[lofty rapids]

what does the scale code look like ?

[pastel plume]

#blueprint message

the names of the bps are in the alt text

[lofty rapids]

only scale x, keep y and z at 1

[trim matrix]

even if their scale isnt one to start?

[lofty rapids]

well set it to whatever it is at start

[trim matrix]

it is

[lofty rapids]

oh i c

[faint pasture]

Why are you not using the passed over key bool in Interact?
Also, why do you have a whole interface that only doors use?

[lofty rapids]

interesting

[lofty rapids]

you got that fast delay again

[lofty rapids]

move the retrigger delay to the other delay spot and get rid of the regular delay

[trim matrix]

changed it and nothing changed

[quartz arrow]

Hello, how can I simply blend 3 blend spaces and a state machine in anim graph?

[faint pasture]

#animation

[faint pasture]

How does Lock know which Door it cares about? Show where you set Door Ref.

[lofty rapids]

where do you set visibility to true ?

[pastel plume]

1. i was trying that earlier but it was not working, this was the only fix that did work (second image is key bp)
2. this is literally my first time using bpi. i know this isn't the most efficient way

[pastel plume]

i asked how to do that earlier

[lofty rapids]

they don't know how to set the ref, i was trying to get at where is the door

[faint pasture]

Do it however you want, in your case you'd probably set it manually on the instance in the level, you'd go in Lock and set its DoorRef to a Door in the level

You only need 1 interface here though, Interact. If you start seeing interfaces with CLASS SPECIFIC functionality in them, that's a big smell

[pastel plume]

door is selected. lock is the pot with the sphere collider and the torches

[pastel plume]

my deadline is tomorrow and i was trying to do this with cast to only earlier lmao

[faint pasture]

show the value of DoorRef in the outliner in the level

why do you need a cast?

you know it's a door, just call the door function on it

show the lock's variables

make DoorRef public and instance editable

edit it in the instance in the level to point to the door in the level

[pastel plume]

this might be obvious to you but i am entirely new to this -_-

and i realied my mistake anyway

[lofty rapids]

ya you can just hard code the door

make a variable on the lock pick

the door ref

and just hardcode the doors

[faint pasture]

no what he got will work, just need to tell the lock which door it cares about

[lofty rapids]

i was thinking have a matching lockid, but hard setting them might be a better bet

[pastel plume]

I can't find it in the level outliner

[faint pasture]

Is there 1 door and 1 lock in your level right now?

search

[pastel plume]

i've got the door and lock mesh

[lofty rapids]

what is distancetowall ?

[pastel plume]

what do i need to do

both have blueprints attached

[trim matrix]

the distance from the line trace

[lofty rapids]

show where you set it

[faint pasture]

I can't make it any more clear

[pastel plume]

perfect

thank you

ill test now

it worked LMAO

ok thanks

sorry for being a stupid idiot

[lofty rapids]

it's a common thing i have seen people do it

[faint pasture]

Just remember 2 things.

1. All tutorials are shit until proven otherwise.
2. The computer will do exactly what you tell it to, no more, no less.

You were telling the lock to talk to the door it cares about, but hadn't told it what door it cares about.
That's like asking an unmarried person to ask their spouse a question.

[lofty rapids]

i've seen several times in here people do the same thing, they pick a variable type and assume the type makes it that thing

[faint pasture]

My biggest bugbear is the interfaces

idk where they're coming from but I've seen some goofy ass interfaces lately lol

[trim matrix]

this is what i have rn, the trace is working fine, the scaling isnt, and then once it fails to scale if u try to shoot in the sky it dosnt do anything even tho it was working before that

that prolly sounded stupid, just trying to describe 😭

the second comment was bc i was testing w the scale how it was also

[lofty rapids]

well it makes sense that it scales down, you shoot to the sky and you don't scale it back up

but idk why it just isn't scaling kind of strange

[trim matrix]

would how it was before trying to add the scaling back rly be bad?

bc thats all thats worked 😭

[lofty rapids]

i mean if you don't need the scaling thats fine, but your lazer will go through walls

[trim matrix]

like just visually?

not the line trace

[lofty rapids]

right

[trim matrix]

then thats fine bc im planning rn for it to be mostly single player

the player cant see

that

[lofty rapids]

at certain angles you can

[trim matrix]

the lazer goes away so quick tho i dont think itl be too noticable, as long as like collision wise its fine then i think its ok

[lofty rapids]

ya if you do a line trace from the lazer to the end point of the other trace

thats your actual shot

[trim matrix]

is the impact point of the linetrace is where the player has shot? or do i need another trace

[lofty rapids]

well consider the fact that the first trace is straight from camera, you want a trace that follows where the actual lazer goes ?

this is why like mentioned early you should do a second trace

this will give you a hit for the actual lazer

[trim matrix]

i mean yea it is still slightly offset i didnt notice

but i wanted the player to use the center of the camera for aiming

like the crosshair in minecraft

[void crescent]

You're using some FineLookatRotation anyway. So should be fine?

[lofty rapids]

so your saying the line trace isn't centered ?

you have only one camera on the player ?

[trim matrix]

line trace is centered i think but the lazer is slightly off, i think it may be ok but this shit is throwing it off

[trim matrix]

yea

how could i add a sprite to the hit point so i can see it without the debug shit in the way?

plus just bc i think that would help visually

[faint pasture]

draw debug point, just make it big

[trim matrix]

thats my issue, using draw debug is making that shit on the side of the screen and moving the view to the side so i cant tell for sure if its set up right

[faint pasture]

What kinda homebrew GPU do you have?

[void crescent]

Homebrew GPU. 😄

[trim matrix]

nvidia 1650

[lofty rapids]

it should be close to center

idk what that stuff is on the side but i would turn it off

[faint pasture]

gpu artifacting looks like

[trim matrix]

thats the draw debug.. thats litteraly the only thing i have on, and it goes away when it off

never comes up any other time

[lofty rapids]

create a mesh like a cube in an actor, spawn the actor at the hit point

[faint pasture]

yeah just move the actor or mesh component around on tick after the trace

[lofty rapids]

get that stuff off there take a good shot at the wall

[trim matrix]

looking at it that way i can see its lined up

the draw debug has always done that when ive used it, ive never seen it any other time tho, so idk

ty

[lofty rapids]

looks cool

you just need that second trace and you'll be killing enemy in no time

[lofty rapids]

you may also want to rotate the gun a bit

[chilly jacinth]

A question about curve tables:

• How can re-import a curve table set to cubic interpolatino? If I re-import it just switch to linear;
• Is there a way to auto interpolate missing values imported from cvs (and not just considering them as 0).

Thanks!

[tranquil bronze]

Can someone answer a question about Bp scripting using the first person and third person templates?

I've made a basic inventory system, which I have added (I think lol) to both first and third person character templates and am now working on a podium that you place inventory item on (see pic) to unlock a door. Obviously I'm a beginner cause I have not one clue how to connect both of these player instances to the same logic. I've got a thought that says ok, you have to help the logic know or choose which player character either this or that, but I don't know the node to help me do this. Then another thought says, maybe you have to make a second instance of this for each character?? That seems pretty inefficient though. HELP please!

Even help phrasing my question better would be a step in the right direction, I could ask any 'ol large language model to help me poke at this. I now enough to be dangerous and fairly ignorant.

[faint pasture]

wait do you have 2 character classes in your project?

[tranquil bronze]

I've been taking a coursera UE professional class and the instructor bounces between first and third person characters in the lessons. Some of the BP lessons he's worked on one then switched to the other. But it doesn't make sense that I'd need to recreate the wheel.

Is this not how games code things like switching between character viewpoint? Totally open to suggestions and best practice ideas.

[lofty rapids]

what bp is this event on ?

"how to connect both of these player instances to the same logic" <-- what is a player instance ?

[slender dagger]

is this in the same unreal project? You shouldn't need separate classes if all you want to do is switch from third to first person afaik

[lofty rapids]

so your sockets are not working ?

are using attach node or trying to manually do it ?

[tranquil bronze]

This BP is for a podium, that the player puts an item from their inventory on, which in turn unlocks a door. Does that answer your question?

[ornate trail]

I have several static mesh actors then I put several of this in a parent actor, I want to dynamically change the material slots on these meshes from the parent but can't seem to access their materials.

[tranquil bronze]

Hi OnlyJoe
I'm a little embarrassed that I don't completely understand, what you're saying is that I shouldn't need to duplicate this for first and third? That I should be able to switch? If so, how do I ask this BP to choose first or third? I "think" there needs to be something in-between but don't know what...

[lofty rapids]

i think you can just have two characters and switch between them

one 3rd witha full mesh, one first with just arms

[tranquil bronze]

HI engage,
I haven't used an attach node but I could look up what that does if it would help me to get there....would that help switch?

Appreciate that help here.

[lofty rapids]

that was for someone else they deleted the message

[ornate trail]

why have 2? just stick the camera to his head and add a zoom with the mouse wheel.

[lofty rapids]

right then you can just zoom in and out of 1st 3rd

[gentle quartz]

My bad. I figured it out before you said anything So I deleted my message

[ornate trail]

yeah, you won't have strafing out the box but that's more of an animBP issue

[lofty rapids]

"to both first and third person character templates " <-- so your talking two different projects ? or i'm confused about that

[tranquil bronze]

I have done this in the third person template, but then my interaction trace seems to go AWOL and all the nice print string I have and widgets go away. I'm new and more of an artist than a dev.

@lofty rapids the instructor had us put both the first and third person character templates into our homework project. I kinda assumed this was ok?

[ornate trail]

why are there no names on your nodes

[tranquil bronze]

Whoops too zoomed out

[lofty rapids]

i'm not understanding the switching between projects thing ? is there something specific wrong with each one ? take it one at a time

[lofty rapids]

"working on a podium" <-- in the first or third person template and your saying you added the same inventory code ?

[ornate trail]

starting your trace from the capsule should be fine in either perspective, but a print after the first true branch and debug that, worry about the interface after

[tranquil bronze]

I was mostly trying to get the same things working from lessons in each character template. It seems like I would be able to make one piece of code that either could inherit or use but I might be going down the wrong route.

[ornate trail]

just remember you're firing straight from the half height of the capsule forward

it should work for either, you might also be hitting something else before it gets to the target, log it

[lofty rapids]

Maybe make some functions in a blueprint function library

something you can carry over to the other project

[lofty rapids]

so your looking for a way to determine which one and run code accordingly ?

just use a boolean and a branch, isFirst or something

[slender dagger]

it's all good, no need to feel embarrassed. For most setups I've seen where you go between first and third person, it stays in one class and just switches which active camera is being used.

also iirc you can set the mesh on the camera change between the first and third person to avoid clipping issues, probably best to do this with a flip flop.

What reason has your instructor given around this? More context would probably make it easier to determine if you need 2 separate classes because it might be beneficial in your project depending on what you're going to be doing with it

Take GTA V for example. Michael, Franklin and Trevor would all be separate classes, but they would all inherit first/third person camera switching from a parent class. The first and third person don't need to be their own classes typically.

[tranquil bronze]

In this podium part of the lesson the teacher uses the first person player but switched to the third person when adding a camera to switch between the first and third but sadly my trace on the third person doesn't seems to work, so I'm been throwing wetTP at my first person template (with working trace) at the wall hoping I can get inventory and interactions working the same in both.

Thanks for all your help! @slender dagger my instructor gave no indication why he used one template or anther for these lessons. Maybe just expeditious, or hoped we'd experiment? It is not a live class, just an online one but slightly more organized than Youtube, but less than an actualy degree program. Sending my kids to college, can't afford to go get a master's degree. 😄

[lofty rapids]

so basically your switching between the projects, but right now what your saying is that in the third person template you trace isn't working ?

show the code that does the trace

and whats not working about it ?

[blazing yarrow]

Hey girliepops - why would the Asset Manager crash the editor when I try to assign a directory to the manager?

[slender dagger]

is this just a step by step tutorial thing to get something specific or have they indicated that they want you to do your own things as well?

what are the look at actor reference variables? They aren't being set in your function. Are they supposed to be the actor you trace against or the characters?

[tranquil bronze]

It is one of those follow along tutorials but the homework assignments are geared towards applying them to your own ideas. I plan to take a basic comp sci class as I am realizing I have some fundamental weakness in grokking. I can do the art lessons easily, but this BP scripting section is harder.

[slender dagger]

fair enough.

I've just done a quick mockup of what I think might be the problem section

just try something like this inside your function where all the set actor stuff is and see what happens

obvs you'll have to sub in the actor variable and the look at event

replacing this part of the code

[tranquil bronze]

What would happen if the false is left unset? Does that matter?

[tranquil bronze]

Ha! Yes trace is now firing from bellybutton. This is why devs are almost like gawds.

[slender dagger]

well if the line trace is false then I'm assuming that you don't want anything to happen, same goes for if it doesn't implement the interface.

How your code works in the screenshot is if an actor is hit, then it sets the actor to look to null,
else it sets the actor to null.
then checks if the actor the line trace hit implements the interface.
If true, set actor to look to null, and call the interface,
else set the actor to look to null.

If you're ever setting references or anything that doesn't have a dropdown or slot you can type in, you have to plug something in otherwise you're just setting it to nothing so it won't call anything when you try to reference it.

[tranquil bronze]

Thank you again for explanation! I had to read that twice and copied it down to read it again tomorrow 🙂

[slender dagger]

does it work when you plug the hit actor into your actor to look node?

[woven pond]

Does any one know if box overlap for actors follows parent ( actor ) rotation (Theres no rotation pin available)

[tranquil bronze]

This is working but trace is shooting out of bellybutton or lower 😄
Doesn't look like I can relocate the arrow where the trace originates in the viewport or delete the one in the template.

[slender dagger]

you can get rid of these blue bits. As for the capsule part, if you reference the arrow instead of the capsule component, that should work

[ornate trail]

when you get the capsule location you can split the vector and add / subtract from the Z to move it. Also there's no reason you can't start the trace from the skeletal mesh (socket) or just make a new scene component and start it from there. then you can move the component where ever you want the trace to start

[slender dagger]

yeah this is also an option

[ornate trail]

unless you're adding local component rotation then yes, uncheck 'hidden in game' if you want to see what it's doing

[woven pond]

@ornate trail thanks for the reply. Im running this on tick and don't see an option to uncheck

think i got it though im print stringing each actor overlapped and it seems to be working

[ornate trail]

it's a box collider? Also you might have to attach component to component to follow movement

[woven pond]

im trying to create a spell indicator theres only a decal component i was trying to match decal and collision

[ornate trail]

oh you said box overlap so thought it was collider box

[ornate trail]

huh, I never used that node, that's pretty expensive to run on tick

[woven pond]

it seems to be working so i should have maybe checked better first

[tranquil bronze]

So at the very beginning switch the capsule to the arrow? Ewwww no can do! Error error

@ornate trail Your first suggestion goes a little over my head. As to the second idea, to clarify are you suggesting that I use the new arrow?
Here's my results

BTW I really appreciate the help.

[ornate trail]

make a scene component, not arrow

[woven pond]

What woiuld you recommend instead? its only to get overlaps whilst targetting so is for tick of whilst target is active

[ornate trail]

just enable / disable collision on a box collider when targeting

[slender dagger]

what does the error say?

[tranquil bronze]

On first arrow, Character.ArrowComponent is not blueprint visible (BlueprintReadOnly or BlueprintReadWrite). Please fix mark up or cease accessing as this will be made an error in a future release. Get ArrowComponent

On second get runtime errors

[slender dagger]

is this for the arrow you added or the default one?

[ornate trail]

don't use arrows for location at runtime, that's not what theyr'e for

the arrow you see from manny is just for orientation, it has nothing to do with capsule half height

[tranquil bronze]

Yes unhappy engine. I am learning a ton here, I think.

[slender dagger]

this comment would look something like this (top is changing Z, bottom is using socket, but you have to create a socket in the skeletal mesh editor, which isn't that hard tbh)

[woven pond]

it's just i had seen a lyra video that only had a decal component and it then traced on tick for overlap actors so being the beginner I am I thought it was the way to go.
Once placed the actor is deleted so is solely used for visual feedback to show targets so was unsure. Out of curiosity going forwards is there anywhere I can view or lookup for future reference what nodes are less expensive?

@ornate trail Thank you for your replies i will update the indicator actors (Its a lot less in the event graph!)

[ornate trail]

smth like that, personally I prefer sockets

[tranquil bronze]

Do you mind explaining how? I'm game or could rtfm, look up "how to add socket to skeletal mesh". EDIT ok figured out how to add socket, good idea to add to head?

@slender dagger if you're near Seattle, I owe you a coffee or a beer, your choice!

[slender dagger]

yeah I was typing out what to do but it looks like you've figured it out. Where to create it is up to you, tbh it depends on what you're doing with it

[tranquil bronze]

Just looking at simple objects to pickup into inventory like keys, and then using them on doors/buttons, or playing on poduims to them open doors.

[slender dagger]

I can't imagine I'll be near anywhere near seattle anytime soon. UK here lol, but I appreciate the offer.

[slender dagger]

I mean it won't change any functionality. I was more meaning like if you plan to create something that the player can see (like a beam or something that follows the trace path) then you'd need the socket to be in a specific place

[tranquil bronze]

The homework has the trace visible, when it hits an items with inherited interface it prints a verb/noun direction for the player. So it only needs to be located in a logical place where it will hit things the third person character is "looking" at?

The trace works perfectly in FP, maybe I ought to stick with it? I tried to add a skeletal mesh to the FP template but it didn't work as nicely as when I added an additional head camera to the third person. Again throwing wet TP at wall. I'm sure once I've done this a dozen times it'll make sense - I hope.

Hey thank you all for taking some time to help me trouble shoot.

I'll stick with my first person template for now but you've given me some fun ideas to work with and I'll be trying to troubleshoot my third person more tomorrow.

[lime crow]

Accessed none is my dread man. I understand why it happens but I really struggle to understand how to fix them. I've watched dozens of videos but it just never clicks what exactly I need to do. Although I'm getting slightly better, but they are hell for me. My hearts sinks when I inevitably get them.

[faint pasture]

Can't delete because it's defined in the C++ base class

Where do you want to trace from?

[dawn gazelle]

If you understood why it happens then you would understand how to fix them. It happens because whatever reference you are using is empty when you are trying to use it, and therefore it's not a valid reference, and cannot be accessed.

The way to fix them is to ensure the reference you are trying to use is populated with a valid reference before attempting to access them. If the reference isn't valid, then it shouldn't be accessed.

The first image below is an example of how one could potentially cause an Accessed None error. This line trace may not hit any actor, and then its "Hit Actor" value in the hit result would be "None", thereby invalid, but I'm immediately trying to call a Set Actor Location on that reference and could then cause an Accessed None error. Because the reference could be invalid, you should make sure the reference is valid first before accessing it. In the second image, I put an IsValid check in there to prevent the node afterwards from accessing the invalid reference, now I should only ever reach the Set Actor Location node when the reference is valid. No more Accessed None error should ever appear from this little bit of code.

[lime crow]

Thanks for the comment. Although I understand this and could fix this no problem, using a get valid node is not always the answer, especially when doing things like destroying the character and respawing in. It takes quite alot of set up especially if you have more things going on like inventory systems, components on the player ect. They all need to be set. I get what you are saying. It happens when you try to get a refrence to somthing that dosent exist. Believe me when I say I have heard that about a billion times so I do understand it, and I use is valid nodes like there is no tomorrow. But sometimes an is valid node is simply not enough. Especially if you have multiple blueprints, components ect. I have issues with setting refrences ect. I can't quite explain but its just something I really find hard to do, if there is alot of ui stuff and components ect.

[dawn gazelle]

Yeah, I getcha... It can be tough when jumping between different classes and even multiple instances of classes. :/

[lime crow]

Its probably me just being slow or having learning problems or somthing. Its weird because I would say I'm starting to maybe evolve from a complete noob. I have been learning about architecture, learning about oop patterns, using interfaces and dispatchers more, avoiding circular dependency, writing cleaner code with functions and function libraries and macros and stuff. But when it comes to referencing blueprints (not direct refrences) my brain just shuts down. Its strange man, I should understand it in theory. I don't know man.

[sand shore]

Hey it takes time to really absorb these abstract concepts into the ol noggin

Is the issue that some parts of your system are initialized, you expect that they all are, but suddenly one wasn’t initialized?

[lime crow]

I think so, the problem i get are mainly between the hud after the player has been destroyed.

It seems really basic but setting up all them variable to establish the link to the new actor. I think maybe my struggle is node placement, however logically I think I do it right.

I think once someone actually shows me one day it will click. Maybe lol

[dawn gazelle]

If you're doing stuff like the first image as an example, then it could definitely be part of the problem. You're making an assumption that the reference will always be valid after the construction of the widget here, and if you happen to destroy the player's pawn and then end up calling SomeEvent, then your reference will be invalid and your widget would be none-the-wiser and you'll get your error.

The second image shows a function that gets the reference for you whenever you need it and the third image shows an example of how you could leverage that function. So long as the player is possessing a BP_BasePotato, the reference would be valid, but I still like to put an isvalid check in there to ensure that it is valid.

[visual crest]

I need some help the left is the screen capture the right is a high ress screen shot the problem is that highress screen shots are editor only. As you can see the screen capture is dark and does not look good at all compared to the high ress

[dawn gazelle]

I really don't think this is the appropriate way to take screenshots.
https://forums.unrealengine.com/t/how-to-take-a-screenshot-including-ui-only-using-blueprint/538031/2

[visual crest]

I was told by author they are editor only Said that he checked c++

I know take highress screen shot does not work for sure... Tied for hours

I'll try the automated

[visual crest]

Just tested does not work

in build

[dawn gazelle]

Well, for sure the scene capture component isn't meant for taking screenshots - it doesn't have the capability of properly capturing the UI since it's a camera that exists in the world space which wouldn't include the UI, and look at the roundabout way you have to go to try and do it like that.

I just tested using the console command "shot showui" in a packaged game and it worked, saving the file to <ProjectName>\Saved\Screenshots\Windows

@visual crest ^

[visual crest]

console command dont work in shipping right that what I read online.

[dawn gazelle]

It was a shipping build packaged game

[visual crest]

ok

[dawn gazelle]

There are settings that can disable console commands I believe.

[visual crest]

Ok it works but its not effected by post process

[dawn gazelle]

Pretty sure it is... This was in standalone game mode (it takes forever for my laptop to package) but this is with the character in a post process volume with chromatic aberration cranked up. No change to code.

[dark cedar]

im so stupid i cannot figure out how to simply access a variable that is set in another blueprint

[visual crest]

Just tested it it did not save a screen shot

[dawn gazelle]

This is in editor.

This was in packaged

[dark cedar]

Could someone help me?

[dawn gazelle]

Usually you use a reference to an instance of a blueprint and drag off from it to "get" the named variable from it.

[dark cedar]

Sorry could you explain a bit more

[ancient moth]

Is there a way, I can reference the Trace Target from the for loop when WaitGameplayTagAdd triggers?
Currently I'm having the issue, that StartBoneTrace always gets passed in the last array element, which kind of make sense.

I was thinking of creating a function to avoid that, but I can't call WaitGameplayTagAdd from a function.
Any idea what I can do in that case?

[dreamy marten]

That's because you can't add latent actions inside a function (anything with a delay basically), so any node that has this little icon can't go in a function

You could use an event instead

[glossy cloak]

Still stuck? If so can you give me a bit more info on what you're trying to do so I can give a better example of how you'll want to get a reference?

[ancient moth]

Now i have it setup like this, but it sill does not work 😦
Even though I'm passing it by value, I even tried copying the struct 😦

[dreamy marten]

Ah yeah, that won't work. You might need a different logic to handle this case. Basically what you are trying to do is adding a tag then calling Start Bone Trace before going to the next element in the array?

[ancient moth]

I'm adding the bone trace for a given tag, that maps to a bone name.

So if a tag A is added i want to trace for a bone_xy

But i don't get why it won't work, especially since I'm passing it by value

[dreamy marten]

And why do you need to add it with that latent function? Can't you just get the gameplay tags container and add it directly?

[ancient moth]

No the latent function checks if the tag is added

[dreamy marten]

That's because in this scenario, the event will be called many times instantly and so the value "Trace Target" will get updated and cached every time it's called, but since there is a latent action, the "Start Bone Traces" will probably be called after the event has triggered on the whole array, thus only working on the last index of the array

[dreamy marten]

Do you have direct access to the gameplay tag container that you need to check/modify in that actor?

[ancient moth]

Yes but then I have to check for each tag again :/

[dreamy marten]

Well, you can just use the functions provided by the tag container

That way you can process everything inside a function and don't have to bother with latent actions

[ancient moth]

but i can't g et a reference to the tag, i have to check the whole array

[dreamy marten]

Don't you have it there?

[ancient moth]

Yes but because of the latent function i can't reference it by start bone traces 😅

[dreamy marten]

That's why I am suggesting you to use the functions I've shown above

Those aren't latent

You just need to have acces to the gameplay tags container variable

[ancient moth]

The latent function listens if the and when the tag is added to the actor

it does not add the tag

[dreamy marten]

Hmmm

In this case you can do things a bit differently, you can have a map with that "Async Task" and the "Trace Target" structure, you add an element to the map on the first output execution pin of the Wait Gameplay Tag Add, and on Added you just "find" in the map the Async Task and use the Trace Target from there

Assuming the Async Task object is still valid and is the correct one on the "Added" pin

[blissful brook]

does set game paused fully pause all input? I want the game to pause behind my ui but if I then want to close my ui it doesnt register pressing the key again to unpause it

[ancient moth]

But won't i have the same issue when passing the task to the start bone traces, because of the latent function?

[dreamy marten]

You can select which inputs are allowed to be triggered during pause, it's a setting inside the Input Action if you are using Enhanced Inputs

[dreamy marten]

No, not if the "Async Task" remain the same

[ancient moth]

But it's the same right it#s also just in the loop

[dreamy marten]

Not necessarily since it's on that latent function, it should be outputting the same Async Task object on both output pins if it's done right

[ancient moth]

Same issue sadly

[dreamy marten]

In this case you might need to rethink a bit the logic there. Maybe you can consider adding an event that is called by anyone adding those relevant tags, and you execute directly the "Start Bones Traces" function when that event is triggered

If you need to do that action specifically when someone else add the tag, that would be the best way of doing it in my opinion

[ancient moth]

yea sadly i probably have to rework this, it's just really annoying

[dreamy marten]

It's always better to work with explicit events rather than latent actions

[ancient moth]

I'm using it in a anim notify, to know when the window starts for tracing e.g. the right hand punch

[ancient moth]

this won't change

Maybe I have to write a custom anim notify state, that will send two gameplay events on start and end and also rework the thing to listen for those events instead of the tags.
It's more overhead though which i don't like but ... :/

Or maybe extend the latent tag added function from the gameplay abilities

but that pass by value is not working with the event really bugs me

[dreamy marten]

It works, but not with latent actions since the value will have changed :p

[ancient moth]

It makes no sense to me, how does the value I pass to an event change, when i pass it by value.

This should be it's own scope.

But BP is probably different, I would understand if they change the memory directly ok, but not even copying the struct or passing it by value works.

[dreamy marten]

Because the value is cached on the event every time you trigger it, so when you go to read that value, it will be set to the value that was last set at the time of checking it

So it breaks with latent actions

[ancient moth]

I dislike that really dislike choice of BP's 😅

But thanks for helping!

But I still can't believe it, there must be a way, this has to be something more common and not that you have to desing around that to avoid it 😅

[dreamy marten]

I mean, usually designing stuff to rely around latent actions is not a good idea

Direct events/dispatchers is the way to go

[ancient moth]

Not sure about that one, for a GameplayAbility that will start a trace of the right hand, dependent on a animation it started, as far as I know this is the way to go.
But maybe correct me if I'm wrong here.

I especially reworked it that way, so that the GA has control over that and take away control over it from the animation.

[dreamy marten]

I don't know your specific setup so I can't say for sure but anything that can be expressed with a latent action can be with an event, it's just a matter of how you design things

The latent action is checking checking for something to happen in loop, the event will tell you when this something happens

[ancient moth]

Yes but this something, is happening in an animation.

So it would e a anim notify (state) that handles the action.

but it's a "punch" gameplay ability

so then the ability just starts a montage and the montage handles everythign else

which is not ideal for many reasons

so we kind of need to have the notify alert the GA about that happening

[dreamy marten]

Well, anim notifies can trigger events, not sure where the issue is

[ancient moth]

which is a latent function in one way or another

[ancient moth]

That the GA has authority over it, manages the attack, manages the damage, manages the GE applied and everything else.

did you work with GAS?

[dreamy marten]

Not that much

Which probably explains why I don't understand that logic fully tbh

[ancient moth]

yea 😅

[dreamy marten]

But from a pure code logic, I don't get it why you wouldn't be able to use an event

😅

[ancient moth]

I had a setup before, where the NotifyState did the line trace, did apply the gameplay effect.
But then you have this all in your animation, you have thoren up the ability into so many pieces it's hard to manage, that's just beside all the other things that you have available in your GA.

and then you want to add logic, have to check other things, and it gets worse and worse

[dreamy marten]

What doesn't make sense to me is that you can't uniquely identify those "async tasks"

It should be the whole point of it

[ancient moth]

It is the same issue as with the oder variable, if you reference the task from the latent call, it's just the last variable/last added task from the loop

it's not an argument to the latent call

[dreamy marten]

That's bad design right there :p

[ancient moth]

you can tell that to epic games 😅

but for me the bad design is, that a variable passed by value changes 😅

that's even worse tbh

[dreamy marten]

That makes sense though in this context

[ancient moth]

how does it make sense if I pass a variable as value to an event, why should it ever change

[dreamy marten]

Because the event is unique, it's not creating a new "instance" of it every time you call it like it does with a function

[ancient moth]

see that's bad design to me 😅

also a function does not ever have a "instance"

I still can't believe it, I still think that there is something wrong, maybe it's somehow a reference 😅

[jagged raptor]

Hello! I was wondering if anyone more maths oriented than me can help me figure this out, I have a system where players can pick up an object and inspect it, rotating it with WASD.
my problem is that using add world rotation obviously rotates that object relative to the world, add local rotation or relative rotation rotate the object relative to itself, which means that if the object is 90 degrees on the Yaw it Rolls from the player's perspective.
Does anyone know the maths needed to make it roll on the Yaw relative to the camera perspective?

[lofty rapids]

if you want it to rotate relative to the camera, set the world rotation to the camera, then rotate it ?

[boreal basin]

Good news, finally got my Dash to Sprint function working thanks to a little bit of help. Though I do have to optimize the Dash funcition + wonder if this could be any more optimized generally?: https://blueprintue.com/blueprint/bec2xiy-/#claim

[lofty rapids]

theres also bin like pastecord where you can post text only

that sites for blueprints

[boreal basin]

Is blueprintUE not good?

[lofty rapids]

it's good for blueprints but just regular text probably pastecord is better

[boreal basin]

Ah, doing blueprints first. I'll handle pastecord later.

[lofty rapids]

well the link you posted just has text, thats why i mentioned it

it's not any nodes on it

[boreal basin]

They're around here if it helps?

[lofty rapids]

what is that one that says script/engine ?

what does that do ?

[boreal basin]

Its a doubleInput instnace that tells them if the Dash key has been triggered twice, only then the character dashes.

As seen here:

[lofty rapids]

within the duration ?

interesting thats cool

so your dash you have to hit it double

neat feature

[lofty rapids]

what does get dash direction look like, are you just using the way the characters pointed ?

[boreal basin]

Yes.

[lofty rapids]

i mean all your doing is launch character, i don't think theres much to make more efficient ?

[dark drum]

It might be better long term to just make a custom 'Input Trigger' for enhanced inputs.

[boreal basin]

Well, I meant condense all four IA_Dash directions into a single IA_Dash.

[lofty rapids]

they are all doing the exact same thing it looks like

[trim matrix]

ive remade the lazer from yesterday to use a particle instead and it has been less clunky but ive noticed an issue, im not sure how to fix, if i try to shoot something that hasnt been marked with the trace channel of lazer target, it snaps to the floor, or if i have shot one that is set to a target, it will stay snapped to the last hit location until i shoot another location that has the trace channel

[lofty rapids]

you don't have anything comming of the false of a block hit result

[boreal basin]

Like how would a custom Input Trigger work for this?

[trim matrix]

oh shit 😭 i didnt even notice 💀

[boreal basin]

Thought to optimize it into a singular IA_Dash for optimizaiton purposes.

[lofty rapids]

you could, because imo they are doing the same thing none is different this can more then likely be just one dash that use

because you get the direction aftward

[boreal basin]

Huh

[dark drum]

Input Triggers controls what state in input action is in. So take the tap one for example, this check that the button has been pressed and changes the state to ongoing. If released within the specified period changes to Triggered, activating the input action. If the time elapses without the release sets its state to none.

[boreal basin]

How would you turn this into a custom Input Trigger, if I may ask?

[lofty rapids]

i c yes put it in one, you want to be able to dash with multiple keys ?

it looks like they are all doing the exact same thing

try it out, you'll probably see it works the same

[boreal basin]

Yes. So instead of having to tag each dash key separately, I could just rely on the IA_Move to trigger my IA_Dash if its triggered in a certain way, if that helps.

[lofty rapids]

can't you assign multiple under one ?

like IA_DASH can be multiple keys

?

if i remember correctly

i think you could just have the dash and set all the keys for it

[steady night]

hey when in a actor class, if i jsut want a "location holder" compoenent or whatever is what would be best preformance wise or dosent matter ?

i have 3x spawning points in an actor and i wanna visually show them

i normally use arrows

but there might be some less costly ones ?

a picture says more then 1000 words...

like this,

[ornate trail]

just use scene components. USceneComponent is a UActorComponent is a UObject. Don't think you can have anything smaller that can have a location.

or if its on your skeletal mesh you could just have sockets and get those

[steady night]

sceneCapture componenet is the only ones i can find :/

[ornate trail]

not scene capture, its just scene in blueprints

[steady night]

ah

thanks

[ornate trail]

these guys

but if you're downing something like projectiles sockets are usually the way to go

[steady night]

yeah

tyty

[dark drum]

Something like this would sort of work but you'll probably need to make it in C++ as the 'Update State' is only triggered/called while the key is pressed making it difficult to keep track of how long its been since the key was last pressed.

I believe 'bShouldAlwaysTick' is required to make it check continuously but this can't be set in BP. (from what I can find)

how it is in the ICM. (Ignore period as its not used in what I showed above)

[boreal basin]

For my IA_Dash then.

[robust flicker]

When you create a top-down preset, the character movement is created using the left mouse button. How do I remove the camera movement that is also added there?

[lofty rapids]

so you want the character to move, but the camera to stay in place ?

[robust flicker]

yes

I didn't find where the camera is used when the left mouse button is pressed.

[lofty rapids]

so the camera is in your character

and that thing just follows the player based on where it is

i would delete that camera, put a stationary one in the level

then use view target node to set the camera view

[robust flicker]

I removed that camera and put mine in, but it still moves.

[lofty rapids]

right because it's in the character, you need to put it outside the character in the level

[robust flicker]

I couldn't find where exactly in the blueprint it is used.

[lofty rapids]

it's not used, the camera just follows the player because its on the actor

remove it from the player

https://streamable.com/xf53hk

like this ?

[robust flicker]

I don't have a camera in my character

[lofty rapids]

ok so now add one into the level

a CameraActor

[robust flicker]

I have my own camera there.

[lofty rapids]

ok so now in the player bp

on begin play

use set view target

this works with one camera

if you want more you'll need to make som sort of manager or something that switches them

and that should be it, it should work like i have in the video

if you want to do any movement of the camera you'll have to do it manually now

[robust flicker]

I deleted all the cameras, created my own, added my own motion functions, but my camera moves when I click the left mouse button.

[lofty rapids]

you created your own camera ?

is it outside of the player ?

show where you put the camera

show the player components, probably a camera in there

because no code is doing that in blueprints, it's just that a camera on the player will follow the player

it won't follow it if it's outside

[lofty rapids]

you have two player pawns

[robust flicker]

3

[lofty rapids]

i can only say it so many times

you need a CameraActor

outside of the pawn

and then use set view target like i showed you

[lofty rapids]

if you look in the bp player you'll probably see a camera

you don't want it in there

you said you deleted it, but it says player pawn in the outliner

the movement is and clicking is seperate from the camera following

the camera following is a built in feature when you attach it to your character

it's relative to the player

so as you move, so does it

[robust flicker]

I created my camera through player pawn, there I gave it a movement function

[lofty rapids]

well i can only help if you can go along with me here, i told ya how i got it to work and how it works

[lofty rapids]

^

[lofty rapids]

^

[robust flicker]

I will do as you said now.

[lofty rapids]

#blueprint message

[lofty rapids]

^

[lofty rapids]

are you going to have more then one player on the map like that ?

meaning are you going to have #multiplayer ?

[robust flicker]

No, I'm making a game with mechanics similar to Xcom.

[lofty rapids]

i would just use one player

so that when you use begin play it's like the beginning of the game

on the player

instead of running for every player that you have

[lofty rapids]

ok if you do like this the camera you can easily move around, but you may want to create a camera actor for good controls

you should be able to do forward,backward,left,right while keeping it withing a certain range it's a little difficult but can be done

[dark drum]

Pretty much yea. It seemed like an interesting side project so I setup a c++ base class that allows me to start a timer in the trigger. So the multi tap input trigger I've setup works flawlessly (as far as I can tell) and can work with any input action.

So this allows all the movement keys to output the relevant XY axis value when double tapped. If you're partial to a little C++ feel free to message me and I can share the setup.

[lofty rapids]

i would personally use a camera actor that is like the player, and just have the player not possessed but possess the camera actor with nothing in it but a camera

this way you get player movement with the camera you can move it around

https://streamable.com/aopltv

thats what i did here

i used floatin pawn and wasd for the camera movements

stuck it on a z

theres multiple ways to do things

[robust flicker]

I will try.

[lofty rapids]

it should work with little change, but i would take it one step at a time

the way i first mentioned is good, but leaves out a few things that are built in to something like floating pawn

or even a character with just no character in it if you want it to walk a floor or something

and you would possess the "camera actor"

[robust flicker]

How do I make the camera move by moving the mouse cursor to the edge of the screen?

[lofty rapids]

you need to get mouse position when you move the mouse

then you say if your x and y are within a range

so if your mouse position . x < 50 you are on the left side

if your mouse position . y < 50 you are on the top

and get the viewport size to get the right and bottom

but as far as 50 thats just a number you can use whatever you want

basically 50 is padding that you can set to anything

then when that branch is true that you within the range then move the camera

you will probably want to do this on tick

even a variable like location that you just check on tick and change on mousemove

this is just one check, but you would do all four and save a variable as state of which side you are on or not at all

or you could just in place of the print string do the actual moving
it might be smoother on tick instead of the mouse xy event

you just check one if its false check the other, you'll have to work out if it's in the corners or not as well

this will allow you to move in four directions

if you want a full 360 then thats different, this requires more maths and calculations

[lofty rapids]

hopefully that makes sense

[glad mesa]

My spear goes brrr when throwing while walking backwards (S) or right (D)
im getting the forward vector from the socket on the tip of the spear.

[lofty rapids]

its possible because physics is on, it's hitting some part of the character ?

this is first person view, so maybe bumping into an arm or something

[glad mesa]

when its held it has collision and physics disabled, I enable it on montage notify when its thrown, but I'll take a look at this

[faint pasture]

print the thing it hits on its event hit

gotta turn on simulation generates hit events

i guarantee it's hitting the character mesh

If this is single player and you don't really care about any of the players stuff hitting themselves, you can do it through collision, just have a collision channel for the player's mesh and use the other for the enemies.

Basically on throw, it blocks all it usually does except playerchar. You can then have it block playerchar as well a bit later (or never)

Then in C++ there's options to disable collisions between specific pairs. Or you can hack it with a constraint that does nothing except disable collision.

[snow halo]

Hi, I seem to be having a problem with my function over here

it doesn't decrease my health, even tho Its getting called on runtime (ive put breakpoints on it), it executes ✅

here's how it works on the insides 🔍

[faint pasture]

Why is the bear attacking character 0 and not TheCharacterItIsAttacking?

you got a psionic bear, but he can only attack the first player's character

[vestal totem]

Where do you set Health Amount? I see it as an input on Set Health, and then you use it to set Health Level.

If this is a promoted variable in the function, you may still need to set the variable using the function input before trying to access it.

I just experimented with this by making a boolean input and setting it to true on the input. But in my function the variable is defaulted to false. And when I access it I get false.

Maybe you have Health Amount set to something somewhere, and because you didn't stitch the function call parameter to the actual parameter, setting Health Level to Health Amount doesn't change anything.

--

Also, might I suggest using a names like "Health Current" and "Health New" vs "Health Level" and "Health Amount" which sound ambiguously like the same thing?

[snow halo]

Btw I made it work

there were some functions not connected on the other side

It was a problem inside of my widget, now I fixed the widget functions/connections but still have a problem with this

I even made an interface just now

I have a blood splatter image inside of my widget that I wanna be enabling only when the player gets hit

my blood splatter image sits in here and by default is set to opacity of alpha: 0

this event gets hit, whether inferface or regular event it still doesnt work even tho it executes

so I have a feeling it might be because of this widget, should I make another widget that is created by event begin play of my game on character & just made it visible or invisible depending on my needs?

or destroy & recreate it every time i get hit?

that doesn't sound very optimized to destroy and create widgets

and Im always so discouraged from creating new widgets this is why I made it all nested inside of one widget

[dawn gazelle]

Your interface sets "Blood" to be visible, plays an animation and immediately sets the "Blood" to hidden again. This would all happen within a single frame so your "Blood" would just remain hidden.

If you're wanting to wait for the animation to finish before hiding it again, then you may want to use the "Play Animation with Finished Event" which then allows you to do something when the animation is finished.

[dawn gazelle]

In terms of the logic you have going on here, it's better to try and make your widgets listen for events (using event dispatchers) rather than having your game code calling into the widgets to perform some action - when you are constructing the widget you may need to give it some data or a reference to something that it needs to know about, and that should be about it for the game logic interacting with the widget directly - everything else the widget may need to present should be handled internally to the widget but based on values from references to objects that the widget needs to care about. So if this widget just needs to know about the "Stats_System" component you have on your controlled pawn, then on construct of the widget you can get the owning player pawn, get a component by class (Stats_System) and bind to any event dispatchers you set up in it. If you want to ensure you rebind after the pawn is destroyed, then on construct you can get the owning player and bind to "On Possessed Pawn Changed" and use that delegate to re-get the Stats_System component and rebind your dispatchers as needed. (See attached images as an example of how to do this)

It's also not a requirement to use Interfaces, especially if you're getting a direct reference to the widget class anyway - it's just creating additional work for you and making it harder to track your code for no benefit. The use case for interfaces is when you have a variety of classes that don't share a common parent class but need some kind of shared function call that they can then implement as they need. An interface call with the name "Show Blood Splatter" seems very much like a single use thing that would only ever be implemented in one class.

First image calls "Rebind" manually to set it up based on the current "Owning Player Pawn" and then binds to the "Owning Player's" OnPossessedPawnChanged dispatcher to call Rebind whenever the possessed pawn of the owning player changes.
The second image shows the contents of "Rebind" where it first attempts to unbind from the previous pawn's "Stat_System" component if the pawn and the component it finds is valid, and then it binds to the new pawn's Stat_System, again if both are valid.

[leaden raven]

Can someone point out what's wrong with my anim notify? It used to work but ever since it just stopped and I don't know why. I've remade the notify twice with no luck, it just doesnt fire at all, but ive had no issues with the notifies for steps or even melee attacks, it's only the jump that doesnt work...

[jagged wolf]

Hey
Do anyone know what maybe causing that delay while opening the door...

I think it's something to do with the way I am retrieving the location? Because if I'm standing away from the door or facing it there's a longer delay

I checked the collisions and the grab component is set up right and have attached screenshos... I'm fairly new to unreal so please let me know if I'm doing something wrong

https://blueprintue.com/blueprint/b9_iaw00/

[livid elm]

is there an AI that can generate a blueprint based on high level text request?

[glad mesa]

its actually hitting itself o.o

or a copy of it

But it is fixed by ignoring collision response to my character so I just need to figure out how to enable it back

okay got it working, thank you!

[mental trellis]

There's a plugin. I think.

[livid elm]

various but i dont know if u guys tested if they actually work.

[chilly crane]

Someone able to just double check for me this gives the correct result? If the affinity value is null/void or less then 1 (indicating that the object is resistant), it checks if an affinity was actually present, if it was present, it returns true, and selects the lowest attack grade (0). If an affinity wasn't present (null/void value), or the value was greater equal 1, then it should give the attack the random chance to be a critical, influenced by the chance modifier (the higher the modifier, the greater the chance)

https://blueprintue.com/blueprint/g52so2gk/

[winter pebble]

Does anyone know why interaces are more performant than casting? I would have thought anything that wanted to communicate between two actors would have to call those actors into memory

[ornate trail]

when you cast the UClass meta data / class object has to get loaded into memory. With an interface it only checks the classes interface array at the UClass level. ie was this class declared as this type of interface

[winter pebble]

Is there something that stops the engine from being able to do that with casting or is there an independent use case for casting that requires it to load the meta dataa?

Actually I think I can answer that question. I guess you can call functions from that object and stuff directly in the object you're casting from if you're casting which you can't do with interfacing

[ornate trail]

right since you're casting to a class if it succeeds you know the functions / members you want are there. in most cases this is fine but say you need to do this many times a frame you could just have an interface with a virtual function then define the actual function in your class. This would be faster since it doesn't need to look at the entire class each time but you won't notice a difference unless say you have a bunch of actors doing it several times a second

[winter pebble]

Sweet, thanks NeuroSpice 🙂

[dark drum]

Interfaces aren't faster than casting. There's actually a slight overhead. (Tiny but still there) Interfaces do a cast in the background.

[dark drum]

They're not. There's some memory considerations but with good class hierarchy and using function only base classes, this becomes a mute point.

[dark drum]

Interfaces are for when you have two classes that don't share a common parent but need to use/implement the same set of functions.

[lofty rapids]

interface doesn't replace casting, common misconception

[chilly crane]

Also useful if you don't necessarily know who is needing to receive the message

ie. I use an interface with my combat system because I know that there will be a damaged actor when this is triggered, but I don't know which one. So I send the message out through an interface, and the correct actor picks it up

[dark drum]

Sort of. Outside of a plugin, you should know, if you don't then you might need to look at how your handling things. Uncertainty is the breeder of bugs.

[chilly crane]

I know it will be a value in a range. So basically weapon overlaps object. If it is part of X list then it can proceed and send the weapon data & attack notif to the hit actor

also, in the same way, I'm not interested in anything that doesn't fall into the category. So it can send messages all it likes to an actor that isn't interested in it, because I would through it away anyway, so . Maybe I didn't explain it well...

[winter pebble]

Is there a design pattern or something similar I can research that would help me understand this principle?

[lofty rapids]

"Interfaces do a cast in the background."

[chilly crane]

also remember, at the end of the day, if it works, it works. Your code won't always be perfect, nor does it need to be

this is not to say be lazy, just don't beat yourself up too much about making it perfect

[winter pebble]

Fair, that is a lesson I need to drill, but in this case I'm mostly just trying to satisfy my curiosity for understanding what's happening under the hood better (if I can) 😅

[ornate trail]

huh, guess there is more differences in BP interfaces and c++ than I thought. Basically just use interface to decouple like everyone says, just learned that if a class is already loaded unreal actually uses that to check casts so it seems it's really not an issue 🤷‍♂️

[chilly crane]

and that's a good attitude tbh, understanding is so powerful, it allows you to make things work where they might otherwise not. The current edu systems are far too focused on just giving your raw info, and not teaching how to think & understand so you can implement yourself

[chilly crane]

which is why I'm not concerned about casting to other components on my player character, or anywhere that they should be in use. They're already there, so

[lofty rapids]

not "all" casting is bad

[dark drum]

Yea, object oriented programming, hierarchy and composition.

[winter pebble]

Thank you!

[atomic hollow]

Do any one know that how to create custom category option for all custom categories created for variables in actor like we already have General, Actor, LOD, Misc, etc...

Please Help

[storm solar]

Does unreal not have a way of firing an event when a selection of a combo box is highlighted?
I want to have a description of each option the user can choose before selecting it.

[chilly crane]

I wish I knew, it would be very helpful

[chilly crane]

there should be an "on hovered" event for UI elements

[storm solar]

There is not one for combo box.

[chilly crane]

in the parent widget that implements each one there should be. I don't personally have much knowledge on combo boxes, I always used vertical boxes with buttons. Also #umg is where this belongs

[dark drum]

Not possible using BP only. You have to do something in C++ and from my understanding it's not a simple thing.

[atomic hollow]

will we need to write some custom c++ for doing so or just to change the some thing inside uproperty

[dark drum]

Its something to do with the 'DetailCustomizations' class.

[boreal basin]

Is there a way to make a GAS Blueprint revert itself back to 'Is Data Only'?

[merry mirage]

If there is nothing in the blueprint graph it should do that for you iirc

engine restart might be needed (?)

[maiden wadi]

Restart your engine, or right click the class in the content browser after closing it and reload it. If it doesn't open as data only, you've added something outside of the parent class's fields that won't allow it to be data only.

[boreal basin]

Ahh

How is it his and mine data-only blueprint layouts are different?:

[lofty rapids]

different bp ?

[boreal basin]

I did labled them as GE like instructed.

[maiden wadi]

This isn't a GE

[boreal basin]

Yea, my honest mistake.

[amber cape]

Hello, sorry if this is the wrong place to ask this. Does anyone happen to know how to make something shatter after a condition is meet? For example getting a block of ice to shatter after the player lights all the torches.

[boreal basin]

Where do I find SetMovementByProfile and BreakSMovementProfile?

[dark drum]

Most likely a custom struct.

[lofty rapids]

it looks like setmovementbyprofile is a custom function, wdym find ? are you trying to run this code or copy it ?

[boreal basin]

Copy it, see how it works piece by piece.

My friend's showing me how he does his I think his GA_Sprint or GA_Run function.

[lofty rapids]

well the purple i believe is a function

and the break like mentioned is probably from a custom struct

[boreal basin]

How do I make both of those?

[lofty rapids]

so you can make a function by clicking this button...

idk much about structs

but you'll need to create one i think, and usually it's recommended to do that in c++

but just as a test you can do in bp, but i have heard bad things about bp struct in here

[lofty rapids]

you can also make a blueprint function library, and these functions are accessible from anywhere in bp

[boreal basin]

Ah, right.

[lofty rapids]

this is where you can create a structure

in the content drawer

right click

then go through the menu to see the structure

[boreal basin]

Ok

[lofty rapids]

the things on the function node are inputs

so once you create the structure

set an input to that structure

then in the function you can break it

[boreal basin]

Gotcha.

[lofty rapids]

Its basically letting you choose different settings

so you can have many profiles and different settings

[boreal basin]

Ohh, that one.

[lofty rapids]

i would probably put in the character

the function

because you can easily get the movement component

or you can do bfl, but you'll need to get the character or pass it in as an input

[boreal basin]

ok

[delicate torrent]

Guys how can I spawn a widget in the pawn and then remove it later?
I can't think of a way to do it

like, make widget, alright, and how do I set a location to it?

[dark drum]

With it being for VR I'll assume it's a widget in world space. You'll need a widget component to be able to display a widget in the world. In terms of settings its location, you would set the world location of the widget component the same way you would any component.

And just in case you're not familiar with widget components, they pretty much render a widget to a material and then displays it on a plane. You can create a widget and then set the component to use it.

[delicate torrent]

well, it kinda is and kinda isnt

I was trying to bypass the defaule widget menu because it stopped working for me after I made other widgets in game, and setup widget interaction in VRPawn
Didn't understand how to call it so I am trying to fix the default one

[wheat viper]

Hello,
does anyone have any idea why my Projectile component doesn't move when I activate it, I have simulating physics off, and my aim to activate it once I want to throw an element. I have a pickup system.
Sorry if nodes are messy.

[delicate torrent]

Widgets in world work perfectly, the one that spawns on your hand does not

( will record and send video in a bit)

[wheat viper]

And is there a way to change direction/velocity dynamically

[delicate torrent]

https://youtu.be/XW-qc9LOkus

And I also recorded a second issue which I can't solve for some reason(made a smooth turn thing, and it just rotates the entire pawn along some axis)

MoveX is absolutely the same but get right vector

[sharp rapids]

When I load a level with the 'Open Level' node, the Camera in the level stops working for some reason.
When I load the same level manually in the editor PIE, it works as intended, but when loaded via BP, the camera output returns a black screen.
Why might this be happening? How can I fix it?

If I press F1 in the game viewport, it shows the wireframe of the scene which is correct

But it does not show the rendered scene, instead its a black screen

[azure walrus]

Hi, does anyone know what is wrong in my function? is it possible that I am using the wrong add node?

[spark steppe]

you are trying to add an Object to an Actor array

[dawn gazelle]

Remove the ForEach Loop, recreate it, connect the "All Interaction Points" first, then connect the array elements.

Alternatively, disconnect the array and the array elements, connect the array first 🙂

[azure walrus]

Thank yout, it works 👌 🙂

[dawn gazelle]

The reason why - when you connect either the array or the array elements pin it sets the wildcard pins on the node to that particular type. The order in which you connect to wildcard pins can matter as it sets the type and in some cases the engine doesn't appropriately assign exactly what you may actually need. It's always best to connect the array first before the array elements as that way you know you'll be looping through the correct type of object.

[trim matrix]

i have tried to make a pause menu that shows when the player presses pause, then if pressed again resumes the game, but when i press the input again, it dosnt "reset" for lack of better wording. it just stays on the screen, ik im prolly not going ab it the best way lol 😭

this is all in my player bp

[lofty rapids]

and when you press show pause menu the second time does the widget go away ? your saying it doesn't right so when you set visible isn't working ?

does the game unpause ?

[dawn gazelle]

Did you make sure to set your input action to trigger while paused?

[trim matrix]

yes

[trim matrix]

no it dosnt go away it stays on the screen

[lofty rapids]

put a print string before the node that sets it invisible, do you see the string print ?

basically a print string comming off of b in the flip flop

see if that flip flop is working right

[trim matrix]

its not

[lofty rapids]

switch a boolean

to do basically the same thing

[trim matrix]

so make a bool thats set pause, and then maybe a branch put here? im confused

[dawn gazelle]

Nothing wrong with your code here, works just fine on my end with a mostly blank widget. Do you have any input handling on your widget?

[trim matrix]

no

[lofty rapids]

does the same thing

idk why that flip fop isn't working though

but i've seen weirder things

[dawn gazelle]

OHH

I know why....

I'ts a flipflop in a function

Flipflops can only retain their state outside of functions.

Multiple calls will have the flipflop reset itself.

[lofty rapids]

i c, so boolean should fix that np

[dawn gazelle]

Mine worked cuz I just had it hooked up directly on the input action.

[trim matrix]

the bool is working n that makes sense ty

[dawn gazelle]

Also, instead of having a specific bool...

Built in function to check 🙂

[trim matrix]

its working like this, but. i have to press my input twice for it to work

[lofty rapids]

default the boolean to true, or use is game paused like mentioned above

[trim matrix]

ah i see

ty

[kind estuary]

i have my data table for all my units.
Each units uses a specific mesh that has specific properties such as color and scale that differ a bit.
So i need another data table to set up all the meshes.
How do i reference these meshes with properties data table, in my other units data table?

[dawn gazelle]

Sounds more like your first data table needs an array with a structure that contains the details about each mesh rather than another table.

[kind estuary]

an array with a structure inside the unit?

i dont understand it

you have a data table with all your units, the name of unit, hp, attack, defense

[dawn gazelle]

You have a data table that contains your units. That data table would have data about the unit. That data should include the mesh data.

[kind estuary]

yeah but wouldnt it make more sense if there was a different data table for the mesh data

because lets say you have 50 units and they only use cube or sphere

then you are setting the same data for all entries manually, with color and scale, that is always the same basically (changing only if it is sphere or cube)

the unit in the datatable should have something like -> what mesh you are using?

and the other data table would define the meshes

right