blueprint

[light token]

thanks a lot

[gentle urchin]

The plane should have a collision volume, and two variables to control the borders

If they're all in the same world

/level

Atleast if its what it sounds like, some form or part of a puzzle

[tame pecan]

@trim matrix Don't use multicast for doors, use repnotify

[iron heron]

hey, i have hundreds of actors in a group actor, how do i reference the group actor and not all 500 of the actors from blueprint to do somemthing with them

[glacial eagle]

AGroupActor doesn't have any BP-exposed functionality AFAIK

[gentle urchin]

you'd need to create an actor which holds the 500 references

and add whatever group functionality you'd want in there

[modest gulch]

hello, is there any way to refresh screen (obviously without ticking or anything) when paused? My case: in pause menu there are graphics options, including FoV. Unfortunately, when I change FoV (slide bar), FoV is not updated on screen on fly, only when I unpause.

in main menu screen it works without problem, since no pause is here

[brazen stirrup]

might have something to do with the collision, as it might be covering the whole door

[trim matrix]

having trouble with a function I made, I have an AI that attacks doors in the level, once the door health reaches zero the door is destroyed, this works but only once. I think I need get all actors and something else but I cant get my head around it any help would be appreciated

[trim matrix]

so now every single one dies at once lol

[azure sparrow]

Hey so i created my own damage type called custom damage

in custom damage i created a variable

damage name

but as i selected my custom damage type on the apply damage function it doesnt show up :/

what could the reason be?

[green quail]

hello friends, my shipping build isn't making sav files and is loading garbage data from somewhere when I go to load, what do I do?

[serene galleon]

Apply Damage function doesn't know about your variable. Or any variables inside of DamageType

[stiff quest]

hey guys, I get this error when packaging
An item with the same key has already been added
anyone knows how to fix this?

[trim matrix]

i had this once some time ago and i think it was some redundant c++ header files or something, i had to delete the duplicates by hand

but maybe in the #packaging channel they can help you out

[last abyss]

how can I have it so my comment bubble has higher priority on overlap so my nodes won't be in front?

this is on a zoomed out graph

[azure sparrow]

look closely i selected custom damage as the damage type

which should expose the damage name variable

[azure sparrow]

reduce font size

[last abyss]

that's not exactly what I'm aiming at, the bubble is just not very readable with all the nodes infront of it and I'm wondering if there is a way (when zoomed out) to hide the nodes or at least make them be behind my bubble not infront of it. setting the font size doesn't do anything to the bubble, only the text bar at the top of the comment

[gentle urchin]

I remove the bubbles, and increase the header text size instead

Bubbles just annoy me

Probably doesnt help you much tho

[rugged nexus]

Does anyone know how to return physical materials from PredictProjectilePathByTraceChannel

[late cave]

There's really no setter for color? 😦

[dawn gazelle]

You can set the color by clicking on the "Add Box Collision" node and then setting it on the right details panel.

You'll have to click the little down arrow under the "Shape" category

[late cave]

Wooooooooww.... thanks! 👍 But that also means I can't set it per added object...

[zealous moth]

is there a simpler way to get a data table row search than to get them all and foreach them everytime?

[gentle urchin]

Guess you could save the rows and search there ? If you know the row name

[golden shard]

for some reason when i set up my running animation its looping by running forwards then slingshotting back and running again

idk if its the animation i download and need it to be a stand still runnning ani

[late cave]

ok, no, now I definitely proved it... the actor with the Add Box Collision in the constructor DOES NOT add any colliders in a packaged build when placed in a streaming level! 🤬

it only adds colliders in the persistent level... even thought I've opened the streaming level and made sure that the constructor has run

play in editor, everything is fine... package build, no colliders in streaming level 😦

[peak nexus]

I have a question how do you remove something from the viewport?

[tired cypress]

Use the Remove from Parent node

[peak nexus]

thanks man!

[prime ruin]

so im working on a bullet spread system

this is the code for my buck shot pattern

projectiles are fired on a for loop 5 times

each one has its own y and x value

as you can see the value gets added to the look at rotation of the muzzle to the impact point

which yields

you may have to open that in your browser

but thats what its supposed to do\

but when i fire up or down

it squeezes on the x axis

i cant figure out why

if you need to see more of the code lemme know

[pale blade]

I want to use Interp.
Interp requires Delta Time.
To get Delta Time, I must use Event Tick
I prefer to avoid Event Tick, since everyone says it's bad so I try to use Set Timer by Event or Timeline but they do not have Delta Time

Is using Event Tick the only option if you want to use Interp?

[earnest tangle]

If you need to do something smoothly with interp, just use tick. There's no reason to invent your own tick alternative if you need to do something like this

[spark steppe]

well, there's get delta time and there are also alternatives to interp (e.g.: lerp)

if the interp should happen every tick anyways, you can just stick to onTick

[open peak]

how can i get the roll from a line trace hit?

[prime ruin]

the roll?

whats the line trace hitting? is the trace coming from the camera or somewhere else?

[earnest tangle]

Well, Lerp nodes still need to run on something like tick for them to be smooth. Get Delta Time isn't very useful unless you run it on tick, because it won't give you a consistent speed if you run it at arbitrary intervals

Since say if you were to run it at 1 second intervals, you could get any number of different delta times for the frames they happen to run on, so it would just jump at different speeds

[zealous moth]

@open peak get hit normal make rotator from vector?

[open peak]

but making rotator from vector doesn't provide the roll

[zealous moth]

Oh lol

Literally the only thing it doesnt return

[prime ruin]

did you break the rotator?

oh

[zealous moth]

Doesnt matter

[prime ruin]

i didnt look at the image

[zealous moth]

@open peak can you describe what youre doing further?

[pale blade]

Hmm, interesting.
So let's say I use a Set Timer by Event and set the Interval at 0.05 seconds (20 fps).
Can I just plug 0.05 seconds into the Interp delta time?

[zealous moth]

Yup

[earnest tangle]

You could, but it's not guaranteed to run at 0.05 interval (eg. if for whatever reason the framerate was to dip severely enough)

But unless you have a specific reason to run it at some custom interval like this, you probably should just use Tick. It's not inherently "bad"

[zealous moth]

@pale blade you shouldnt fear using tick. Its a myth that its bad....

There are so many myths surrounding unreal it is astounding people still tout it

[pale blade]

I see, I'll switch to Tick then

[open peak]

I am shooting a line trace below an actor and I want to angle that actor to the same roll ass the ground below it

So the ground below is at an angle and I want to have the actor angled with the ground below it

[supple dome]

its the normal from hitresult

if you want actual angle, acos(dot(normal, upvector))

[open peak]

Does this give the X/roll angle of the surface below?

Oh ok I see

I suppose you mean upvector from the point of the normal (or it doesn't really matter actually)

[open peak]

Can I have a line trace that only check for hits on a specific actor and it's components?

[fiery swallow]

You can create a new linetrace channel and have the specific pawn block it, while all other classes ignore it

That's the closest I believe you can get to having a linetrace hit one specific thing

[open peak]

cant i create a collection of things to look for rather than a collection of things to ignore?

because i only want to look for one thing, kind of redundant to have everything else ignore the line trace

[fiery swallow]

When you create the new linetrace channel you have the default option to have everything block it, overlap it, or ignore it. You'll want to set the default option to ignore. And then in the actorBP go to your collision settings, find the new linetrace channel, and set it to block

[open peak]

i was thinking of producing an array of things to check for, and doing a component line trace check on every item in the array

[fiery swallow]

What I'm telling you to do is pretty simple. I'm assuming you're using default linetrace channels like camera, and visibility which are not good. But you can do it the way you want to aswell, even though it's a little messy

[open peak]

Where do i create a line trace channel though?

[fiery swallow]

go to project settings, and then type in channel in the search

you should see somewhere to create a new line trace channel

https://gyazo.com/b0e3427411f2cdd090a6bb599dd3cd0c

[open peak]

yeah i found it

do i have to set the response to the component with the collision itself or can i set the channel to the whole actor with all of the components?

[fiery swallow]

the whole actor should block the trace channel

Components don't have separate collisions unless you give them one

[open peak]

its the components that have the collisions set, not the actor itself

in my case

[fiery swallow]

then in that case it should work

but I've never tried giving a component it's own collision

[open peak]

Im creating spline mesh components and enabling their collision thats why. And your help worked, thanks a lot!

[thick osprey]

How would I make my cursor show at all times? I am new to this so please dont judge.

[torpid linden]

use "Set Show Mouse Cursor" on the player controller. You may also want the Set Input Mode family of nodes

[thick osprey]

well I am making a simple game with some buttons

and I need the mouse to show so people can walk and also click buttons on there screen

[torpid linden]

you might want to read these docs then: https://docs.unrealengine.com/4.26/en-US/InteractiveExperiences/UMG/HowTo/

[thick osprey]

ok

I dont see anything about showing cursor by default

@torpid linden

[torpid linden]

the code to show the cursor and enable the UI is in there, just do it in Begin Play instead of in response to a pause input

[thick osprey]

where would I make said blueprint @torpid linden

[torpid linden]

generally in your level blueprint

if you're this new, I recommend starting with some of the tutorials on the "learn" tab in the launcher and at learn.unrealengine.com that will give you a quickstart on unreal basics

[thick osprey]

oh ok! Didnt know that exsisted. Thanks!

[iron heron]

how do i set the position of a mesh from blueprint

[wild panther]

hi, does anyone know how to find a subscene track in a level sequence with blueprints? I tried Find Track by Type with MovieSceneSubTrack but it isn't working 😦

[wild panther]

try the SetWorldLocation node

[mild jacinth]

does someone know how can i scale a blueprint? i have the water 4.26 blueprint from Epic Games but im not able to scale it for some reason. no matter what i set it will not scale

[burnt nest]

I have not tried the new water feature. If scale doesn't affect it, it likely has another built-in size variable. Check the class settings.

[gentle urchin]

Wouldnt surprise me if it relied on scale being 1,1,1

[icy dragon]

The water system is still super broken anyway, and it's still kinda stuck within Fortnite's map size.

[zinc portal]

probably more fitting here

I would like to save data (ideally CSV table) from the game.
Is this achievable with blueprints?

[mortal cradle]

Is there any issue with setting a parent of a blueprint macro library as an "object"? So it shows up everywhere and not just in one type of bp?

[gentle urchin]

^I did this aswell, and so far it works like a charm.

[atomic salmon]

@mortal cradle that's what BP Function Libraries are for.

But they are not linked to any specific actor/object.

[mortal cradle]

They are not working for what I tried. I wanted to access blackboard keys in a less messy way than vanilla and doing it through function library wouldnt let me do it.

[trim matrix]

how can i change a static mesh in runtime?

[true marsh]

@trim matrix If it is in a blueprint, you can drag out a reference and use Set Static Mesh.

If it is placed in the level you might have to do it in the level blueprint (select the object in the viewport, open the level blueprint, right-click and choose make reference to "selected object".)

[trim matrix]

thank you

[atomic salmon]

@mortal cradleI have not tried that specifically, but you may need to revert to C++ for that kind of customization.

[trim matrix]

i have a question if anyone can help me, i want to charge a blink ability while im left clicking, and when i release it, i want to teleport the player towards the mouses position but at a distance based on the charge. so longer u charge it the closer u teleport to the mouses position, less time u hold it you only go a couple feet. if that makes sense

[fiery swallow]

Set a base distance (likely the minimum distance you can teleport) , and then have a variable or something that rises every 0.1 seconds when you click, and continues to rise until you release it

[dark crow]

You could use a timer that starts when pressed and stops when released

[trim matrix]

thats not the issue

i know how to do that

but how do i teleport the character toward the direction of the mouse, at a distance based on that amount of charge?

[fiery swallow]

didn't even let me finish

[trim matrix]

oh lol

[fiery swallow]

once you release the button you need to get the actors forward vector, and multiply it by (base teleport distance float + held down variable float)

Vector * (B + N)

vector is actor forward vector
B is Base float
N is final number from being held down

[trim matrix]

what if my character doesnt rotate, its a 2d platformer

[fiery swallow]

should still have a forward vector

[trim matrix]

hm let me see

do i do a set actor location?

[fiery swallow]

I believe forward vector is the X axis

you can do set actor location or teleport node

[trim matrix]

ima try and see

[dark crow]

You could theoretically use mouse location to world space too if you want it to go towards the mouse

[trim matrix]

yeah thats what im finding to be the problem, i need the character to go towards the mouse location

[fiery swallow]

there is a way to get mouse coordinates

[trim matrix]

i have a mouse vector updating on tick for now.

so theres a position of the mouse vector saved

[fiery swallow]

then use that in place of get actor forward vector

[trim matrix]

i tried it but it doesnt seem to work

one sec

this is what i did

i unlinked the timer and just set the base and blink distance the same just to test out

[crystal epoch]

Hello, can someone aid me with a complex damage system?
Thing is that i have some elements + types of attack, and one element with one type of attack effect is quite different of same element and other type of attack.
And i would ask if someone knows any way to organise all my variables/stats of attacks that i can change element/type/duration of cc etc everytime i call it. Without hardcoding all cases.
(Currently tried summoning BP but it wont work properly)
Thank you so much ^^

[trim matrix]

it still isnt going towards the mouse like this, any ideas maybe?

[fiery swallow]

I've never used 2d games so I don't know what is going on. Althought I was skeptical of using mouse cursor location from the beginning

because get actor forward vector is relative, and usually only prints out 1,0,0

[fiery swallow]

you'll need to get creative

first see if you can manage to teleport to the cursors location

[trim matrix]

well my character is only 2d and only goes left and right, my mouse is always visible so u know where ur teleporting to

i can do that easy

if i set actor location to the mouse location it works

[fiery swallow]

then to start off, I suggest making the max teleport distance the mouses locations divded by (insert minimum teleport distance number here)

and as you hold down left click that minimum teleport distance number should be reduced

so for example mouse location divided by x

every 0.1 seconds decrease x by 0.1

If X eventually reaches 0 then you've reached the maximum teleport distance which is the mouses exact location

This is a good starting point that can be tweaked after

[trim matrix]

um ima try and decipher all this and see if i cant get anything going

[fiery swallow]

I'll try and explain it better

Mouse location ÷ (M - N)

M is Minimum teleport distance
N is Number Held down

If we plug 3 into M. Then That means the minimum we can teleport is 1/3 the distance of the mouses location

[trim matrix]

i think i may just do a AI move to kinda thing with another spawned actor that starts at the character and moves towards mouse location.

[fiery swallow]

... I mean you can but this can be solved with math

You can't avoid that in game develop, it's gonna come back

[trim matrix]

i know ima need math, but i dont think what you are suggesting will help, if you take the mouses location and just divide it, i dont believe itll divide that distance towards the character but instead put that divided location in world space.

[fiery swallow]

Your best bet will be GAS, there's a 30 dollar plugin on the Marketplace that allows you to utilize it in blueprints only if you aren't efficient with c++

[crystal epoch]

@fiery swallow Thanks ^^ But the thing is that i want to make it on my own but dunno the best solution or if its any simple to do

[chilly jetty]

Hi there, sorry to bother anyone but i could use some help.

I have this sphere trace that is supposed to store a "Hit actor" and chance its material when it traces the actor

I tested this function with other objects and actors and it works

When I printed out the Hit Actor, even when its overlapping it doesnt show up and the Hit actor doesnt change materials

[plucky fractal]

Does the actor it's not working with have the tag you're using at the top and / also has collision thats working

[chilly jetty]

I've added the tag onto the actor BP

[plucky fractal]

The trace is probably going through the actor perhaps

I'd check collision maybe

[chilly jetty]

are traces based on overlap?

[chilly jetty]

Yeah you're right, the trace responses were set to Ignore

thanks for the help

[fiery swallow]

https://gyazo.com/788f5135c42f7e15b785a558f2facc21

I went and figured it out for my own sake

This worked in a 2d game

[trim matrix]

ok ima try it later today thanks.

[fiery swallow]

Let me know, I am overly invested in other people's UE problems

[trim matrix]

lol ok, ill try to remember to update u on if things work

[jaunty solstice]

Need help with some very basic Array manipulation. Lets say I have 5 unique Static Meshes a,b,c,d,e defined as an array in the editor. And I need to populate a 2nd array or arraylist with 1000 of these picked randomly such that there are never two consecutively identical ie

Instead of
[b,c,a,a, c,e,d,d, etc]

I need
[b,c,a,c,a,d, etc ]

What is the logic to do this in BP and which specific nodes should I be using?

[plucky fractal]

No problemo =)

[runic parrot]

Hi! does anyone know how can i get a dictionary variable to be "Global" across my project? i want to get key values from that dictionary everywhere on my projects

[hard charm]

Guys I have a problem I have a blueprint script that sends rays to my target to detect if there is an object in the middle to stop targeting but I would like to know how it would be to detect the area of ​​the object that collides to speed up the field of vision of the character

[fiery swallow]

how are you setting the arrays?

[fiery swallow]

Function Library

[hoary junco]

How do you make animation blueprint to "widget animation class" reference? I need to change the animations depending on the gun i have equipped and i cant figure out how to make the reference out of animation blueprint. And it needs to be "widget animation" type class reference

[fiery swallow]

what?

[hard charm]

I want to make it stop following a target if the raycast hits a wall

but hurrying the angles

[fiery swallow]

you're talking about a line trace right?

[fiery swallow]

You need to construct the widget and from there promote it to a variable

[hard charm]

yes of course

[hoary junco]

hmmm :/ never used constructs

[fiery swallow]

@hoary junco https://gyazo.com/2fb99f2cbe219251de82b2b081a5913b

The return value would be the reference to the animation class

[hoary junco]

oh yea right that. ofc

[hard charm]

this is my blueprint for now

[fiery swallow]

Okay and you're trying to detect if you hit an actor?

[hard charm]

The first hit is taken from me but I want to know if the actor who hit his area first is larger than my delivery capsule to determine if he stopped seeing the target

[fiery swallow]

is this this some kind of AI?

[hard charm]

no this is custom target tracking to detect object collisions through player vision

[fiery swallow]

So the end goal is to know if the player can see another player?

[hard charm]

yes

[fiery swallow]

A node exists for that

[hard charm]

that is, but speeding up the angles starting from the front axis of the character that I control, not from the camera

I'm doing it right now with the raycasts method

[fiery swallow]

WasActorRecentlyRendered uses the camera to detect players on screen, You can not use a multi line trace to determine whether or not a player can see another player

Because multi line traces will go through anything

[lofty hound]

is there an good way of comparing 3 enums to check if they are the same ? i know you can do two with equal enum but can you do 3?

[hard charm]

it works 🙂

very very ty guys

[hoary junco]

Doesnt that only work for hud widgets?

[fiery swallow]

Line all 3 of them up, get 2 equal signs, the enum in the middle should be connected to both equal signs, finally add an And node and connect both equals, does that make sense?

[fiery swallow]

Construct only works for widgets, why?

[hoary junco]

Like how do i get the animBP class to the class part in the construct

[fiery swallow]

Inside of your animation blueprint, you want to access the widget ?

Is this what you are trying to do?

[fiery swallow]

https://gyazo.com/55827b56bb9ed375620d887fbe6ccd1d
Best I can think of, I don't think there is a node that compares multiple variables

[lofty hound]

Ah great thanks!

[hoary junco]

Ok meaby i didnt explain it too well...
My weapon inventory and switching is just hidden child actors of the player mesh. And i will choose the child actor classes from my main menu. The weapons itself are just actors with skeletalmesh and some variables like damage and fire rate. All of the guns are parented from "BP_BaseGun". What i want to do here is to change the animationBP class depending on what gun is equiped. This is pic from my EquipGun function

[candid nest]

hey anybody know how where i can get perfect documentation for fps multiplayer template

[crimson hornet]

Does anyone know what I need to add at the object of the cast to bp enemybase? I tried pawns and actors but it doesn't work.

I tried this but it still doesn't work.

[gentle urchin]

You need a reference to the enemy actor of the same or inherited class

[candid nest]

use get player character there

in object of cast to something

[gentle urchin]

Hope the player isnt its own enemy....

[candid nest]

if u are using for enemy it will might not work just remove the cast from enemy and make a variable using the enemy refrence and u are good to go or cast your enemy in event begin play and save it

[crimson hornet]

I tried this

Mhmm

[south merlin]

Is the only way to get a relative rotation to get the relative transform and split the pin twice? Seems weird as there's a set relative rotation.

[crimson hornet]

Forgot to say but the spawning of the AI works. Only there target points won't get set

I have 2 different AI's so thats why I am casting to enemy base and human base there both AI.

[upper stump]

Hi guys, im wondering how to handle certain functionality. I have a bunch of weapons and i want the m to have random abilities/ effect like for example

20% health on kill, bonus damage if opponent is specific class etc, any suggestion how to handle this type of stuff?

[south merlin]

TBossX, are you fiding the array is empty?

After casting to your Enemy Base, try getting the Target first, then set it into the array.

Like your getting Target Points but I feel it's probably empty

[chilly jetty]

Hi there

I have a UI animation that I wanna play, but before it plays I've set the global time dilation to 0.001

how can I get the play rate to be normal while the time dilation is 0.001?

do i just set it the same as the time dilation?

[south merlin]

Do you mean you want each weapon to spawn with a random attribute like in the game Borderlands?

[storm vigil]

Hi. How do I make a logic of this stat: counting how many times I hit an enemy (base AI) by a specific weapon. I was thinking of doing the logic after the line trace (parent gun bp) to the hit actor and using an increment integer to count the number of times it hit an AI. So in the gun childclasses I will have separate stats on this. Thanks

[crimson hornet]

No its not empty sorry for late respone btw.

[south merlin]

I'm catching up. So you pawn your character and then cast to your EnemyBase BP, then you set the array that is a local variable?

spawn not pawn

[crimson hornet]

yes

[crimson hornet]

But what do you mean with local variable I got an actor Variable called "AI" that is local

[south merlin]

I mean the array, when you created it.

[crimson hornet]

This is in the AI to go to the Target Points

[crimson hornet]

And I made another bp with this in it and here I will spawn the ai and set the target points for the AI.

[fresh sand]

Why does this fail?

[south merlin]

Just to be clear, you are setting the Target Points in the array in SomeBluePrint_BP and then calling it in your AI Pawn BP?

[crimson hornet]

Yes

[south merlin]

(I"m making up names for it)

[upper stump]

Yeah. Something like this.

[south merlin]

I would check in the AI Pawn that the target array has anything in it when you call it. Do you have an interface setup so you can call the variables between BPs?

[south merlin]

If it's a small number of weapons (vs say Borderlands) you could just have an array of attributes that upon spawn you pick one and set it on the weapon.

[south merlin]

Or you can even build them more procedurally via a few fun random rolls to see where you land. Roll first to see what base attribute it gets "+ damage, +ammo, whatever" then roll to see the specifics "+27% damage" and finally a modifier if you need "+27% damage to flying enemies"

[upper stump]

Thx for the suggestion.

[crimson hornet]

hippieman but the problem is I don't know what to get for the object at Cast to EnemyBase

[somber quail]

in my game the sword follows the players mouse and i want it so when the player swings it makes a sound how do i make it so it detects when the item rotates

[south merlin]

I'm not sure either looking at the BPs. I'll think on it.

[crimson hornet]

Okay Thanks!

[unreal wing]

So I have this character but is there any way for me to either switch materials when the character moves side to side or rotate the mesh? If anyone can help me solve this issue it would be greatly appreciated!

[rain egret]

so i am having some code that turns any mesh into a wireframe, it calculates the distance between the vertices and places a cube there and adjusts the rotation and scale.

however when drawing any quads it also draws the triangles. how can i avoid that?

or rather how can i create a bool condition that checks if the two vertices form this triangle

i have already experimented with angles and length. but to no success

[gentle urchin]

You want it to only show the box wireframe and not its triangles?

[south merlin]

Wow that's an interesting one

[rain egret]

Yes, only the box

[gentle urchin]

Not sure how one could separate the two

I mean, how can you know if its a plane between x verts...

[south merlin]

could you calc the angle on each coordinate plane?

[rain egret]

Yes I could

[south merlin]

and if anything sits between the max angle and 0, you get rid of it

for each verticie

[gentle urchin]

Sounds very complex for such an easy shape,

[south merlin]

yeah very complex

[gentle urchin]

And tuning it sounds stress

[south merlin]

and I don't know if it would work

[rain egret]

Well imma explain how the thing works so far:

[gentle urchin]

Like... if it was a t-rex statue (idk what use-scope there is for such a thing) it would be very hard i think

[south merlin]

what about adjacent vertcies somehow

with like an n-gon I have no idea how it would work

[rain egret]

I can’t explain it, it’s too difficult for my brain right now to think :((

Aaaa

[south merlin]

does it have to work for blobby non-blocky shapes?

[rain egret]

The code is Only supposed to work with quads

[south merlin]

ah ok

[rain egret]

No, only low poly shapes

[south merlin]

so every angle has to be 90 degrees right?

or I guess not

dang

[rain egret]

https://media.discordapp.net/attachments/151049317707153408/883382275746713620/unknown.png

Such shapes, very simple

[south merlin]

should it ever work for a triangle?

[rain egret]

No

[south merlin]

I think you kind of have to trace it out and add up the angles and throw away a result that gives you 180 instead of 360

[rain egret]

Cant do that, I build it in triangles, I tired doing it in quads instead but that didn’t work

[south merlin]

I mean post creation

actually

you'll have to do each side at a time I think

but if you grab any vertex, and then find the next one (on the same coordinate plane) and then find the next one and then find the next one. If the 3rd one is the starting vertex you just roll back on step and pick the other vertex.

[gentle urchin]

Isnt there materials that does this magically?

[south merlin]

Oh I bet so

some kind of cool shader that just draws this based on faces or some magic

[gentle urchin]

Based on angles i think

[rain egret]

Yea but this is basically the wireframe for a ship, and you add plating etc by hand

[gentle urchin]

Anything that has an angle

And an area out from there

No angle, no alpha :p

[south merlin]

you just start at a vertex and move around to the next one and if you end up where you started in 3 moves it's a triangle, if you don't it's a quad

and you do it for each plane in the shape

I mean this is math I'm too dumb to do

[rain egret]

Well the order in which the vertices are connected depends on the triangle index, and that will always leave you with a triangle

Like 0 1 2

[south merlin]

what if you draw everything as triangles and look for doubles with the same normal?

that would only be the points that make a triangle

right?

like draw to separate triangles for a quad with overlapping verticies

[rain egret]

I thought so too, but if you have a plane for example you’d have a field of quads, and those quads would have the same coordinate as the one you check. So instead of the triangle you might remove adjacent quads as well

[south merlin]

right

[fallen glade]

any reason you can think why my path is so wonky?

I'm at a loss

[crimson hornet]

Yo hippieman did you found a way to fix it? I tried multiple things but it still doesn't work.

[south merlin]

I dont' fully understand what is going on with your thing TBossX.

But I really suspect if you inspect the array, it's empty

[crimson hornet]

I dont know because I am filling the targetpoints in

But I can explain better what is really going on.

[gentle urchin]

I think you'd benefit from one of the pins here really , the blueprint communications

[south merlin]

I have to take small steps to get to any result when I work. So I would try to make the array work entirley in the AI BP

[gentle urchin]

That seem to be the main issue

[crimson hornet]

yeah that works

I only need to communicate from bp to bp

[gentle urchin]

Yeah

Thats what i mean

[crimson hornet]

yes

[south merlin]

try this

https://www.youtube.com/watch?v=6IOgkWv1lEY

his YT videos are fantastic for knowing how to use a node/do a thing.

[crimson hornet]

Just watched it

But I still don't understand what I need to add here at the object.

Also after Cast TO BP_Enemy Base is not getting called

[south merlin]

I'm not sure of your entire setup.

[gentle urchin]

^

You need an appropriate actor reference

[south merlin]

So you have a BP that spawns AI characters

[crimson hornet]

Yes I call it the wave spawner

And I have an BP with AI

and all there functionallity

[gentle urchin]

You can get it by spawning(return value is a reference) , collision, get all actor of class (not recommended) or hardpicked via editable variable ref

[crimson hornet]

I dont know how to do that sorry.

[south merlin]

the AISpanwed0 event, I assume you have something that actually spawns an actor right?

[crimson hornet]

yes SpawnActor

[south merlin]

I'm mixxed up about your entire setup still on who is doing what

[south merlin]

the EnemyBase_BP, is that the class of the spawned actor that is looking for patrol points?

or the class you want

[worn glacier]

I know how to check if a player entered my boxes overlap area how would i check if the player is still in the box area

[south merlin]

Make a bool "Is in box" or whatever, and set it to true when they begin overlap, and don't set it to false until they exit. Then jsut check that bool.

[crimson hornet]

If end overlap is not gettig called. (If you add that as an event)

[earnest tangle]

I've got this code for calculating an actor placement based on a linetrace hit position and normal.... this works as long as the actor has its origin at 0,0,0, but for actors which don't have it, this stops working correctly if the actor is rotated for example 180 degrees so it's upside down. Anyone have any ideas?

[crimson hornet]

hippieman this is what I am setting for the Wave Bp

And that Enemy_AttackerOrcT is an child of the BP_EnemyBase

[south merlin]

ultimate you need to spawn the Enemy, and then cast that enemy to your BP_EnemyBase

I think you might ave some functionaliy in the wrong BPs, but I can't get a clear picture of it

[crimson hornet]

Okay

I think you gave me an idea

ill try something other

[south merlin]

I hope you get it.

[earnest tangle]

Here's a video of what the behavior is - the first object has the 0,0,0 origin, the other one doesn't... so I think the problem is how I'm applying the object's origin in the formula, but I can't quite figure out how it needs changing

[daring vapor]

Looking to boost the signal in this issue. https://answers.unrealengine.com/questions/1048314/is-it-possible-to-get-the-relative-rotation-of-an.html

[earnest tangle]

I mean if you just get component rotation that should give you the rotation in degrees

[crimson hornet]

Finally!!! I fixed it. Thank you hippieman and Squize for your help!!! This is what I did

[worn glacier]

tells me this is an infinite loop

but wouldnt the looop exit when en overlap gets triggered

[crimson hornet]

Not sure but maybe this works.

[boreal axle]

how do i attach a player to another player ( multiplayer )

[crimson hornet]

So Halo you have this

[earnest tangle]

No. They do not run simultaneously, the begin overlap logic would have to stop before the game can continue doing anything

[worn glacier]

@earnest tangle i see

i think i have an ideaa

no thanks

[earnest tangle]

If you want to reduce health at certain intervals while a condition is true, a timer would probably fit the bill

you can start the timer on begin overlap, and stop it on end overlap

[daring vapor]

Unfortunately no, I get...

[earnest tangle]

those are degree values are they not?

[daring vapor]

No they are radians. I'm looking to bet deg 0-360

[earnest tangle]

179 is definitely not radians :)

the range UE usually gives you for degrees is -180 to 180 or maybe it's -180 to 179 or something

don't ask me why it goes into negatives, it's just how it is :P

[daring vapor]

Correct they are not deg 0-360. It's the 0-360 that I'm looking to achieve get, in relative to the body of the "car"

[earnest tangle]

try to find out what's the minimum and maximum values it gives you.. I think it's gonna be something like -180 or -179 for minimum, so if you want 0 to 360, just add 180 into the degree value to remap it into 0 to 360

[daring vapor]

Have you looked at the post link i posted above?

[earnest tangle]

lemme check it again...

[daring vapor]

It's not exactly what you are suggesting, but something different. If you have a different approach I'm all ears. 🙂 @earnest tangle

[pale orbit]

does anyone know why my arm doesnt move with my camera ?

[earnest tangle]

Ahh, is there a get local rotation or something like this? I don't remember off the top of my head, but that should do it

I thought relative would give it in local space but I guess not?

if there's no node for it, you can probably Get Transform from the component, and then use Inverse Transform Rotation to convert it from world space to local space

[daring vapor]

I tried the get transform trick, still no deg values.
Inverse Transform Rotation.... Hmm, ok I'll see what I can find....

[earnest tangle]

Get Actor Transform might also be something worth trying since it would be relative to the actor then which should produce more useful values

it's definitely in degrees, but the values are just in world space or something which makes it harder to use :)

[daring vapor]

Have you dug into the First Person template to see how Epic set theirs up? I bet it has a few clues. Seems to me it should help.

[daring vapor]

Everything I've read says they are radians not deg. But the point about world vs local space is worth looking into for now.

[earnest tangle]

ranges for radians is from -PI to PI or 0 to 2PI

so if it's in hundreds it's definitely not in radians :)

[daring vapor]

I'll have to trust ya. 🙂 Artist trying to code here 😛

[quasi frost]

Is there anyway to render an actor infront of UI?

[earnest tangle]

Yeah a lot of the time angles are represent in rads, UE tends to represent them in degrees, so if you're looking at some guides that aren't UE specific they might be a bit misleading on that front

[daring vapor]

Gotcha

[daring vapor]

OK, this still leaves me the problem of converting the return value into deg though.

[pale orbit]

i did they make the arms a child of the camera but i have to add another camera when i ads so if i ads the arms are not childs of that camera

[daring vapor]

ahh. ok. Not sure what to do in that case.

[earnest tangle]

Maybe just log the values you get and see what the range for it is that you need. As long as it's the same regardless of actor orientation it should work :)

[daring vapor]

Ok, but what if the user needs all 360 deg, both positive (going forward) and neg (going backward)? There is no telling what the user will try to do. They could will be inputting a value, say 340 deg, and the wheel needs to turn that far, then stop.

[earnest tangle]

Well, if you can find out what the range of values that you get is, then you can remap it into 0 to 360

I'm fairly sure that by just doing + 180 it would actually go into 0 to 360

[daring vapor]

"just add 180 into the degree value to remap it into 0 to 360" yea this had me thinking

[south merlin]

Are you making a box to reduce your health?

[earnest tangle]

Yeah the basic idea is that if the minimum value is -180, then if you add 180 into it, now your minimum value is 0. At the same time, if your maximum is 180 and you add 180 into it, now your maximum is 360, so it should work :)

and it will work similarly to other values inbetween those two points as well

[still delta]

Hey guys, newbie Slacker (as well as pretty novice UE tinkerer) here looking for some assistance. Just for reference, I'm just getting started with the Unreal Learning courses that are provided in the Learning Portal, but I've tinkered with level/UI creation quite a bit prior to, so I'm just now starting to seriously try to add functionality to my project. In any case, I'm trying to figure out the best way to optimize this bit of Blueprint. Essentially I want the Player's Stamina to regen by x amount (2, in this case), every second as long as their Stamina is less than or equal to max (100). This is the only way I was able to make it actually work (and display on the progress bar appropriately), but everywhere I've read warns against using Event Tick (too much, if at all) due to the issues it may cause since it updates every frame. Since I want to have multiple regenerative stats, this poses a problem I seriously aim to avoid. Any help would be greatly appreciated

[daring vapor]

Makes sense, I'll give it a go.

[south merlin]

You want to Set a Timer by Function name, and make a stamina function.

[hoary junco]

This is fine right? Turning them on and then off right away. Just that the animation registers it

[south merlin]

You need to decide if you want the player to start regen stamina the moment it dips below 100, or if you want them to start regen only once they stop losing stamina.

Then you would set a Timer by Function Name, and then create a new function or event (it can accept both) and make that function add to stamina. You set the time how often you want it to trigger (say every .5 seconds). And then when stamina is back to 100 you Clear and Invalidate by Handel the timer.

for example here is an ammo regen I use

once I fire a bullet, I start this timer, once ammo is full I clear the timer

[trim matrix]

Hey guys looking for some assistance. I want to create a system that will generate a checkpoint that both players have to reach and both players will be equal distance from it. I scanned documentation and still having trouble. Ant input would be appreciated!

[south merlin]

how can both players reach it and be equal distance from it?

or you mean player 1 is at XYZ and player 2 is at X2Y2Z2? And you want to make checkpoint at X3Y3Z3 that is the same units away from both players?

[trim matrix]

Should i draw it?

@south merlin

[south merlin]

probably

[daring vapor]

Not so much luck. Check out the image below. Looks like I need to do some tricky math to get the values in deg. I'm gonna keep working on it, let me know if you have the energy to keep helping. 🙂

[trim matrix]

Sloppy but here it is

@south merlin

[daring vapor]

What I would like to get is feedback in deg, the numbers in blue, as the wheel turns. Not the numbers that I am getting, the numbers in red.

[trim matrix]

Think of it like they're racing to the same spot if that helps @south merlin

[south merlin]

Ok. so I know this is Trig

if you draw a circle from each player's center. Once the radius of the circle is greater than (distance between players / 2) the circles will overlap at 2 points.

so you can get the distance beteween the players, use that as your minimum radius and then make 2 circles of some random value between total distance between players and the minimum radius. That'll give you 2 equidistant points

now how to do that in unreal, that is a good question

I was never very good at Trig

[still delta]

Essentially I want stamina to regen the moment it dips below 100, as it will only regenerate by 2/sec and the action in question that is draining Stamina costs 10/cast. Just to see what I'm doing wrong, I used your pic as an example, but I'm sure I'm still doing something wrong. I'll get both pics in (EG/Func), cuz I wouldn't know where the error lies.

[trim matrix]

thanks tho @south merlin

[south merlin]

in the stet time, your function name has to be exactly what the event is called. So it needs to be "StaminaRegen"

oh Photo, you do not want to clear the timer in the Stamina function

you want to clear it elsewhere

[lyric holly]

Can anyone help me understand where the circled portion in red is coming from? Is it a function, if so where is it defined? And why is it listed in the event graph?

[south merlin]

no I"m dumb Photo

sorry

your should be fine

[still delta]

Yea I was about to say it looks good but my stam bar still doesn't regen x) Sorry if this is tedious, just wanna get a real understanding of how this works so that I can then implement it across the board on my own once I do

[lyric holly]

custom event ok

[south merlin]

PHoto make sure in the timer you have the name correclty for the event

and it should trigger

[lyric holly]

Is this arrow thing an indicator of an event?

[still delta]

That's updated, copy/pasted names, still nothing. Maybe it's cuz i'm trying it on UE5? Also, I thought you could only call functions using stet func. I tried using event timer but i can't get a ref for the custom event from the event graph tab over to the function tab

[south merlin]

It can be a function

[lyric holly]

it's a function

o

k

that designates a function got it

[south merlin]

Photo I've not used UE5. Maybe you should just use a function instead of an event.

[lyric holly]

wouldn't function just have an f?

[south merlin]

yes, Macros show as the arrow

I had them mixed up

[lyric holly]

sorry i am not sure what you mean by macros here

[south merlin]

actually I'm looking at my own BP and I have a Macro and a Function showing with the arrow and a fucntion with the F

[dawn gazelle]

Not necessarily.

[south merlin]

so I'm not sure what tells it to change that image

I think it's based on outputs

[lyric holly]

macro in c++ is just a name

idk what it means here in bp

[dawn gazelle]

Macros are like functions but they can have latent nodes within them, where functions cannot.

[south merlin]

you can collapse nodes in a macro if you need. The only time I use it is if I need a delay node, as you can't have a delay in a function.

[lyric holly]

ohhhhh

anyone recommend a good starting place for learning bp? i am figuring a lot out on my own by looking at other projects

that's been pretty good

[dawn gazelle]

They can also be used to build execution path outputs with logic in them.

[lyric holly]

what are those?

macros

[dawn gazelle]

This is an example macro that would execute the output paths sequentially, each after 5 seconds.

In > wait 5 > Out 1 > Wait 5 > Out 2... etc.

[lyric holly]

hmm ok cool

oh wait

that whole thing is a macro?

[dawn gazelle]

Yes

[lyric holly]

the entire process

ic

how do you then define it as a macro?

or declare it rather

"Unreal... THIS.. is my macro called..."

[dawn gazelle]

You click the little + symbol beside the "Macros" item on the left side of a blueprint.

Then name it as you wish

[lyric holly]

ohhhhhhhh!!

got it thanks

right i forgot

cool a macro is a segment that executes

makes sense

[hoary junco]

The one who tells me why this doesnt work gets this gun model. It doesnt go to the Semi animations

[south merlin]

you can also select a bunch of nodes and right click and collapse to macro

[south merlin]

what's the issue? Is it not going through your animaions properly?

[hoary junco]

In game it doesnt go to the Semi animations

The booleans are that all the lines going into the Conduit node have "Weapon Switched"
and from the Draw nodes to Idle there are "Drawed" booleans. Which are kinda not needed

[south merlin]

I don't think you want the booleans like that

does your game only have 2 weapons?

[hoary junco]

for now 2 only animated and set up

[south merlin]

you don't want both in a state machine

you want to blend poses and each has a state machine

[hoary junco]

So i should have 2 state machines?

like thise

[south merlin]

yeah

I use a blend pose node

there's a few different ones

you can use an init, if you are making a game like old school doom, where each number on the keypad is a diffrent weapon

1 pistol, 2 shotgun, etc....

or you can use a list

[hoary junco]

Yea kinda like doom

[hoary junco]

Do you mean Blend pose by int

[south merlin]

yeah

then each time you swtich weapons you changet he int value

so you will want to get that int value from your character or gun (wherver you choose to set it)

and use it in the active child index

[hoary junco]

like this?

And then add the semi animations into the pose 1

[south merlin]

yeah, you might have to do more setup for you exact setup. But that should start getting you there much easier

and keep your state machine simplier

you can probably pull the init right out of the array you make with the guns

just one less thing to try to set and track

[hoary junco]

@south merlin Ty so much for this. I will DM you the model if you want

[south merlin]

haha that's ok. I'm happy to help.

I'm avoiding doing any real work today

[hoary junco]

😄 ok well just ask for it later if you need/want

@south merlin One more thing i want to ask from you or someone is that do you get the variables to your animationBP like this? At least that is how i have always done it

[south merlin]

that's what I do

[hoary junco]

ok good

[south merlin]

is that in your animation bp?

[hoary junco]

yes

[south merlin]

I think it's worth casting to your character then saving that as a variable. Then using the variable for each get and set.

I don't know for sure, but I think it saves on the casting call which is good.

so to be specific, on Event Blueprint Update Animation I have a sequence

first I cast to my character and save that as a variable

[hoary junco]

yea

[south merlin]

then in the 2nd part of the sequence I use that variable of my casted character to get all my variables and set them to my local animation blueprint variables

cool

I've been slowly cleaning up places where I cast too much.

[hoary junco]

Ok i undrestand what you mean

i will go to bed now and continue tomorrow. Ty for your help

[south merlin]

no problem

[keen goblet]

[edit: Firing combobox init script on OnInitialized doesn’t cause the Selection Change Sound to play! Hooray!]

Think I encountered an audio bug with comboboxes in 4.26.2 —
Changing the Selection Change Sound off of Construct doesn’t change the sound that’s played, even tho it will print that it has the ref to the new sound.
Any workaround?

Purpose behind this is to prevent the Selection Change Sound from playing when the app starts. I’m populating the combo box from a data set and then setting its selection

[runic parrot]

Does anyone know the default shortcut for print node?

[upper stump]

hi guys, any suggestion how to stop characters momentum during jump. What i mean. When i jump forward and press S to go back i stop the momentum. Same thing if i try jump backward and press W

i know I'll need to check if player is jumping and which direction is moving and also check if axis value is opposite to the direct of the jump

[keen goblet]

@upper stump You could use SetPhysicsLinearVelocity

[upper stump]

the problem is getting the correct functions from blueprints 😄

[inner gale]

Okay I am stuck with this problem where I have on the left and center a instanced static mesh with 2 instances so the center one and then the one on the left. They both have a custom data float value assigned to them this value is used in the dynamic material instance I create for them in the construction script. And then on the right I have a simple and normal static mesh component witch also has a dynamic material instance of the same material but witch instead changes a scalar parameter inside that material. The problem i encounter is that the custom data value does not seam to want to update for the instanced static mesh if it isn't moved in the simulate mode, or that is my guess. So would anyone have any idea what could be causing this strange behaviour?

The material

The actor and the event tick changing the values

Here is another video

[daring vapor]

Have you looked into the Character Movement? There are some variables there that might do the trick.

[shadow root]

does anybody know a good way to restrict the player's movement to the camera bounds? For example you can't move out of the camera view in a game where the camera is in a fixed position. I tried using a collision box but I don't know how to size/position it to be the same size as the camera view

[daring vapor]

I feel like I saw Ryan Layey do this in his retro remake of Zelda. I don't remember which video it's in though....
https://www.youtube.com/c/RyanLaley/search?query=retro

[shadow root]

I'll check it out, thanks!

[upper stump]

i left this functionality for later. There are other parts of movement that i can focus on

but i did try to play with Air control

stupid question but from what i see when you start your new project in UE movement configuration is stored in Character but i saw videos where they store it in Player Controller.

which version is correct?

[light token]

How do I remove a pin from the Select node?

[shadow root]

@upper stump you can put it in either but I think most people put it on the character/pawn directly unless they plan on controlling multiple characters/pawns (and also preferences people have of course)

[dawn gazelle]

Right click the pin and select remove pin?

[shadow root]

alt click (i think)

[upper stump]

Thanks. I can skip refactoring 😄

[pearl beacon]

I have a issue in my save game instance, where when i select graph, it says instance is not editable

[light token]

@dawn gazelle there is no remove pin

I'll try the alt click

No both are not working :/

It's a bit strange. It cant be I have to delete the node and do all this again.

[shadow root]

are you alt clicking on the line or the point it connects at?

[dawn gazelle]

Looks like you need to click on the node rather than on the pin:

[light token]

Ahhh

Thanks a lot!

This was it.

[dawn gazelle]

Still not very friendly - what if you wanted to remove an option in the middle? 😛

[light token]

Then you can move the last pin to the pin in the middle and remove it. But not very userfriendly I agree.

[peak nexus]

i got a question im trying to make the enemy teleport to my character without any animation. I've tried to make it work but nothing seems to work anyone know any solutions?

[daring vapor]

@earnest tangle FYI this worked https://answers.unrealengine.com/questions/1048314/is-it-possible-to-get-the-relative-rotation-of-an.html#comment-1048326-form

[runic parrot]

Hi! does anyone know how to read a file with Blueprints?
I'm trying to add a file at path something/something inside the game, so any client can read the values and if they want, they can replace that file with diferent values and it will be taken by the client (not on runtime)

i want a readable file that can be replaced on the packaged client version of the game by the users, if necesary.

[charred grove]

hello guys

im trynna look at where the mouse its pointing in a side scroller

[median igloo]

there’s a section in your player controller blueprint called “mouse interface” that lets you show the cursor and allow the player to click on things

you should also be able to toggle this through blueprints if you need to enable/disable the mouse at runtime

[winged sentinel]

hi everyone, im trying to setup weapons for my game and i cannot get it to line up correctly for my life

thats what i end up with the weapon all twisted

thats my bp, and i need the weapon to be root so i cant even rotate it, im not quite understanding how this works

i have it snap to target

but im pretty much losing my mind rn

when i add a root to it it goes pretty much into space and i cant even see it

[chilly jetty]

Hi there

I'm trying to get my UI animation to play the same in spite of the global time dilation

how can i get it to speed up and play at its normal rate?

do i have to increase the Playrate?

[candid nest]

hey did anybody try to merge the mps with fps template

[dawn gazelle]

Something like this can be used when activating your dilation.

[chilly jetty]

So i'd just have to match the play rate with the time dilation?

is that all?

[dawn gazelle]

Sorry I kind of did this so the widget matches the time dilation speed. If your widget is slowing down whenever you activate time dilation, then you'd have to calculate the difference by doing 1/timedilation.

[chilly jetty]

ah okay

i multiplied but i didn't try dividing

[dawn gazelle]

So if your dilation is 1, playback speed is 1. If your dilation is 0.1, playback speed would be 10. If your dilation is 2, playback speed would be 0.5.

[pale blade]

So there's no easy way to pass in an event to be called in an event right?
Like Event1 takes in input parameters Event2 and Event3. Then inside Event1, it will call Event2 or Event3. Kind of like a callback function

[dawn gazelle]

You can do something like that with functions and event dispatchers, probably macros as well.

[chilly jetty]

mmmm it wasn't working as i wanted

it was too fast

I just decided to move the time dilation forward in the function

But I would like to solve this to make the animation work proper

[heady burrow]

What are some normal use cases of timelines ?

Can you lerp a material into another using a timeline?

[gentle urchin]

Yes - but not easily i guess

you cant set an alpha on a material itself. You'd need material parameters for both materials to run their alpha

not being able to apply two materials at the same time (unless it's actually the same material) makes me a tad unsure how to make it look very nice

Being the same material makes more sense to me

[frank salmon]

Hey, does anybody know how to make a character look at the mouse aim position in the world using aim offset?

I currently have these values (pitch and yaw) that get set in the character blueprint

but when it comes to feeding them into the aim offset they are not accurate at all at certain angles on the screen

the right side of the screen is pretty offset, but on the left side it looks quite accurate

[crystal epoch]

Hello ^^
I have a doubt about how to structure the data flow in my game.
I want to make player set some input, lets say 1,2,3
If it makes 1,2,3, access to data table(or whatever) row which has 1,2,3 and then return me the skill name/BP

Any ideas about how to handle this? Maybe i'm so wrong and i have to think in another kind of system

Thank you^^

[tight schooner]

yeah weirdly enough there's a node that does this: https://docs.unrealengine.com/4.27/en-US/BlueprintAPI/Rendering/Material/InterpolateMaterialInstanceParam-/

it interpolates between two (non-dynamic) material instances and applies that to a dynamic material instance. You have to supply the node with those things and also drive the alpha with a timeline (or w/e).

[fallen glade]

great info thanks

[tacit oyster]

Hi, I want to drag actors on the x-y plane, I used this blueprint:
https://answers.unrealengine.com/storage/temp/313779-screenshot-2020-09-16-091723.jpg
It works, but when I click on the actor it slips under the mouse like in this video:
https://youtu.be/Z_qM4sGr7qs?t=6
Is there a way to solve? Thanks.

[tight schooner]

I think one way to handle it is to remember upon click (i.e. save to a vector variable) the offset of the hit actor's location vs the cursor's 3D location by subtracting one from the other (actor location - cursor location). And once you have this offset stored, you can add it to the output of Line Plane Intersection before feeding it to Set Actor Location

[trim matrix]

can someone tell me how stupid I am and how arrays are supposed to work?

[tacit oyster]

Thanks @seanny I'll try

[tight schooner]

An array is like a list. Each item on the list has an index (starting at 0). So in your BP, you're making an array that has only 1 item at index #0, and then you're getting a random index from 0 to 2. The problem with that is there's no index #1 and index#2 specified in your Make Array, so it'll throw errors if the Random node rolls a 1 or a 2.

[trim matrix]

no its a structure

it has 3 items in it Im sure

you can see that cause I break it

and the break does work, I just need it to be random and have it be a montage haha

[tight schooner]

yeah, but all 3 hit reactions are packed into one variable, and then you slotted that struct into an array with one index. Maybe you want to make an array of the "montage to play" data in your struct

and I think arrays have a "random" node you can use

to select a random element in the array

[trim matrix]

so I put the whole structure in the array, instead of the items in the structure?

[tight schooner]

You're already doing that in the screenshot though. You're just putting the whole struct into an array of 1

Depending on what you're using that struct for, maybe you don't need a struct at all

and you just want an array of "montage to play" hit reactions (I'm not an animation guy so I'm unfamiliar with the data types)

[trim matrix]

yea thats what I need haha

I thought youd put them in a struct

[tight schooner]

nah, you use a struct if you need each element to house multiple data

like, a vector is a struct of 3 floats

[trim matrix]

aaah

[tight schooner]

and you can make an array of vectors

[trim matrix]

so how would I make the array with montages?

[tight schooner]

well, if they're static assets, one way is to create an array variable of Montages (or whatever the data type is called)

and next to the type selector dropdown, there's an icon in a pill shape

and you select the grid one, lol

brb screenshot... this is hard to describe

[trim matrix]

yea I just noticed that haha

I know what you mean

I just dont wanna make the array inside the blueprint if possible

put them in a struct and grab them from there to keep it clean

[tight schooner]

okay. The nice thing about arrays is you don't have to define a new struct type, and you can freely add/remove or otherwise "resize" the array, and there are helpful nodes like ForEachLoop and Random

but if you like the struct approach, you could maybe put each item into a Select node

drag out the "montage to play" pin, and search for Select

and then you can have a Random Int select between 3 choices or w/e

[opaque blade]

you put them into your struct declaration aka the Blueprint Struct type as default values?

A better way and more generalized way instead of doing this instead of a struct (as a Blueprint Struct is still a declaration) is

You could inherit from PrimaryAsset and use assets instead (Creating them via RightClick>Misc>Data Asset) then your setup is a true asset. There you could set the Montages as array

In your Blueprint you can then reference the asset instead of the array

Advantage here is your asset type can have functionality, like "Pick Random Hit Reaction" giving you a single montage, and you decouple implementation and usage knowledge

ie. check here https://www.youtube.com/watch?v=hcwo5m8E_1o

[fallen glade]

is there a "save all" shortcut?

[earnest tangle]

ctrl-shift-s I think?

[fallen glade]

much love

[opaque pike]

can anyone suggest me a good unreal engine blueprint tutorial

[fallen glade]

I would start from the epic own videos on the topic, that's how I started. Then when you understand the basics just do some really small things, quantity over quality, my 2cents

[worn glacier]

how to i change camera gor my player blueprint

like if i click k i want to switch to overhead cam

[fallen glade]

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

what would make my fps drop in engine just by clicking on a pawn? never happened before

[light token]

Hello. I don't know where I should post this question. It's about physics. My physic objects shake a lot. I made a video demonstrating this.

https://streamable.com/jtngvv

Is there a way to stop this shaking?

[fallen glade]

#legacy-physics

[light token]

Oh I overlooked that al least 5 times

Thanks I'll ask it there

[fallen glade]

I can click on it's components without frame drops, nothing should be running at all, the construction script is not firing etc

204,355 array elements will do that, I'm an idiot

[earnest tangle]

lol

I was just about to say that I've had that problem sometimes with large arrays

[opaque pike]

thanks 🙂

[gentle urchin]

Its annoying that it does tho, isnt it? Like.... a smarter details panel would be nice 😛

Listview for array's could probably be benefitial

[fallen glade]

@gentle urchin @earnest tangle yeah now the game is stuck at 30fps lol I don't even know anymore

restarting the editor did the trick

[charred grove]

thanks i'll try that

guys

how do i look where i point with mouse in side scroller example¿

[candid nest]

hey is there anyone who is good with a save system i need a small help

[small plover]

Hi everyone.
I'd like my character to not slow down sometimes, even though he's above his maxwalkseepd. I've created this function but it also completely override the movement inputs. Is there a simple way to keep a momentum over the maxwalkspeed without overriding the inputs?

[dawn gazelle]

Try messing with the "Braking Friction Factor" and "Braking Deceleration Walking" values on the character movement component.

[small plover]

looks like its want i was looking for. thanks a lot kind sir

[charred grove]

hi guys can i get help with sidescrollers?

[spark steppe]

i think you can't lock the mouse

or do you want to get it's position?

[charred grove]

me?

[earnest tangle]

best way to get help is to just ask your question with as much details as seems reasonable :)

[charred grove]

i already asked if you scroll up

what im trying to do is, make my character look towards where the mouse its pointing

so if i have the mouse resting in front of the character and i walk backwards

then he will walk backwards instead of turning aroun and walk forward

[earnest tangle]

you can use Get Player Controller -> ConvertMouseLocationToWorldSpace to get a location and direction in world space for the mouse

[charred grove]

in character bp?

[earnest tangle]

you can then calculate an intersection between this and the plane where your character is to get a point you can compare whether it's in left or right of the char

[charred grove]

how do i make the intersection

also

mouse is unseen when pressed play

so i have to maeke the mouse be seen

also

[spark steppe]

set "show mouse cursor" to true on the player controller then

[charred grove]

side scroller dont have player controller

the side scroller example

[spark steppe]

it has for sure

[charred grove]

mm

let me check again

i search "controller" in contetn browser

and nothing comes up

[earnest tangle]

there's a player controller which exists by default, use the Get Player Controller node to get it

[charred grove]

just gamemode and character in the blueprints

[earnest tangle]

then you can do the show mouse cursor as Ben said :)

[spark steppe]

they use the generic player controller blueprint which is in the engine content, and not exposed to your user content

[charred grove]

and where do i connect the get show mouse controller

coming out of the get player controller

[spark steppe]

either you create a new blueprint which is parented to the generic player controller and change your project to use that class for the player controller

or you use get player controller => set show mouse cursor in your character BP or whatever

guess the later option will be sufficient for you, as you want to change it on runtime anyways?!

[charred grove]

yes

but where do i connect it, once i set show mouse controller

[snow harness]

What's the difference between Out Hit Location and Out Hit Impact Point in a LineTraceByChannel?

[charred grove]

still mouse is unseen

[spark steppe]

you might also have to set a mouse cursor, but i'm currently not sure if thats done on the player controller, too

[earnest tangle]

Hover over the pin, it should give an explanation for it

[charred grove]

im doing it in the character bp

[snow harness]

The tooltip just restates the name

[charred grove]

first i need to show mouse cursor, so i can make player point at where cursor is

cant even do the first

task

because side scroller its only controlled with keyboard

[snow harness]

If you break the result within the line trace node, there's no useful tooltip, but it looks like a separate Break Hit Result node does have tooltips

[earnest tangle]

@snow harness odd, for me it looks like this

Ahh

Yeah maybe the break struct pin doesn't have it then

That's a bit odd though

[snow harness]

@earnest tangle

[earnest tangle]

I guess it can't correctly associate the comments when using split pin

[snow harness]

@earnest tangle but yeah either way, that's what I needed, thank you.

[charred grove]

🙂

[snow harness]

@earnest tangle Seems like for a line trace, they're essentially the same, but it would matter for a sphere trace, cause one would give the center of the sphere, and the other where they overlapped. Makes sense.

[earnest tangle]

Yeah

[charred grove]

okey i made the mouse show, how do i make the intersection to let the character know where mouse is

[earnest tangle]

I wonder how do you actually do a ray-plane intersection in BP's 🤔

I know there's a function for it in C++ called FMath::RayPlaneIntersection but it doesn't seem to be available in BP's

[charred grove]

you are saying it to me or noneutrality?

[earnest tangle]

you

[charred grove]

mm idk

im a monkey with a rock and sticks in ue4

[earnest tangle]

hehe :)

[charred grove]

i live off of tutorials, and im doing my best to learn c++

[earnest tangle]

It might work if you use the node Line Plane Intersection (Origin & Normal)

[charred grove]

imma send you what i manage to do

[earnest tangle]

something like this could work

Camera in this should be a reference to the camera in your game

[charred grove]

blue circle

[earnest tangle]

the Intersection value from the node should be a point you can compare to see which side of your pawn it's on

[charred grove]

is what you told me to do

ok lemme see and try

nice i think its what i needdd thanks, imma go play with it

[spark steppe]

you could just use the look at angle of the character location and the mouse world position, and work with that to adjust your character?!

[earnest tangle]

Yeah that could also work but depends on the rotation of the character what values you'd get

[spark steppe]

the character rotation doesn't matter for the result

[charred grove]

didnt work

[charred grove]

this might work

[spark steppe]

it's just finding the angle between two vectors

[charred grove]

let me try

[earnest tangle]

Ah, never really used look at angle much so I thought it would give different results depending on rotation, but sounds like it should be pretty easy to use if it behaves as you said :)

[charred grove]

this i did first

as the picture

where do i add this

[charred grove]

?

i dont get look at angle node

i only get a look at funcion and look at rotation

find look at rotation*

[spark steppe]

that's probably what i meant

if it takes two vectors as input and outputs a float 😛

or rotator^^

probably later

[charred grove]

uggg im feeling the stress in my chest already

[grave relic]

Does anyone know what the setting is called that opens a new window already docked? Aka so a new window gets like this when you open it from the start

[trim matrix]

@opaque bladethanks dude 😄

[opaque blade]

did it work for you?

[trim matrix]

havent tried it yet, just saw it haha

[earnest flax]

Hello everyone, I've been trying to figure out a way of showing a widget on collision with door

but when I collide with door and then go away

the widget will keep being displayed

do someone know how to hide it on collision end?

i have my code here

please tell what is wrong

[spark steppe]

you create a new widget on the end overlap and hide the new one, the old one is still there

what you want is store a reference of the widget that you create in the begin overlap, and use that reference in the end overlap

and you want to use reference => remove from parent

otherwise you end up with a bunch of widgets in memory, which are never used but hidden

[pale orbit]

THIS should get my speed right?

for some reason its returning 360000

[dire reef]

https://youtu.be/GfGCrQFO6lc

[earnest flax]

I tried this

doesn't work this way

so I guess I'm doing it wrong way

[keen goblet]

@earnest flax You're missing the part about storing the OpenDoorWidget you create as a variable. As written, your EndOverlap script makes a new OpenDoorWidget and affects that one, not the one you made on BeginOverlap.

[last abyss]

you want vectorlength not vectorlengthsquared

[earnest flax]

hmm I see

so like this?

[spark steppe]

yes, if you store it on that variable in the begin overlap

[pale orbit]

thank you !

[spark steppe]

your screenshot doesn't show if theres more on the right, also that zoom level hurts...

[earnest flax]

could you help me with storing it on the begin overlap or something please?

As Open Door is the widget

[spark steppe]

just drag the "as open door" on the editor and select set then connect the output of create widget to it

and put it in the execution flow, so that it will get called

[earnest flax]

can I ask, by connecting it to create widget node you mean the one on overlap begin?

[spark steppe]

yes, that should be the only one

[earnest flax]

sorry for this, I just am not so good at these things

[spark steppe]

i see 😄

[earnest flax]

oh ok, but I have that one already connected to the "add to viewpoint" and then set visibility

so replace that?

[spark steppe]

just add it in between

[spark steppe]

put it between create widget and add to viewport

and connect the blue input of it to the output of create widget

[earnest flax]

ohhhhh

like this?

[spark steppe]

yes

[earnest flax]

ok good

now?

[spark steppe]

now it should work

[earnest flax]

oh ok

I hope so 😄

omg it works

thank you so much for help

appreciate your time! 🙂

[supple bone]

hey guys does anybody know how to get animation blueprint transitions to run while i'm playing a montage?
I'm trying to get Aim Down Sight animations to work but when I ADS shoot with the montage the animation blueprint pauses transitions

[slate harness]

This is my script for sprinting when holding the A key and make the Is sprint variable to true

but when i released my sprint key (a) the Is Sprint variable is still true

But this script is normally reset the Is Sprint bool to false

[tight schooner]

@slate harness Seems like you're setting your boolean to "true" on the timeline update, so if the timeline is running while you release the Sprinting key, the timeline will flip the boolean back to "true"

Maybe stop the timeline on release

Or set the boolean to true before playing the timeline instead of on timeline update

[barren hill]

Hello guys! I have a question for anyone who can help me.

Question: I am trying to create a line trace to work with my "Top-Down" project. I have setup a line trace to work with my "Right Mouse Click" button. The bug I'm having is I need to restrict it from being used to a certain distance from my actual player character. Otherwise I can do a line trace infinitely from anywhere on the level/map via "Right Mouse Click".

• How can I restrict line trace to only run if it's within a certain distance from my players character via the "Right Mouse Click".

[zealous moth]

@barren hill line trace has an end. Clamp it

[supple bone]

get the original vector and then make it the unit vector and then multiply by desired distance float

[barren hill]

I'm new at line tracing. Bare with me.

How can I clamp the end?

[supple bone]

the game math video from "reids channel" on youtube should help

[zealous moth]

Line trace works on 2 vectors. A start and end. The length is the distance between the points. Using triangular math you can clamp the x and z axes.
As adren says you should review vector math.

[hidden coral]

Hi everyone, I've been stuck for days, on my head tracking (NPC looking at the player). I use my own skeletons but in all the tutorials I've seen, they create a socket at the head bone, then choose the head bone and their dummies have no child bones at the head.

My head bone has a lot of child bones (jaw, eyes...), and when I reproduce these tutorials, my head bone is the only one to move, all its childs stay in place.

Any help would be welcome.

[spark steppe]

sounds like your rig is messed up

get sure that the face bones are parented to the head bone

[hidden coral]

they are

Like this

[supple bone]

so i finally found out the solution to my problem!
The tick box called "Always Update Source Pose" needs to be checked

[charred grove]

hello gguys

how do i make character point towards mouse in a side scroller?

so if mouse is in front of players and i walk backwards i actually walk backwards instead of turning around

[strange igloo]

Are references of interface types just pointers to UObjects that implement that interface?

The variables with yellow icons.

[hidden coral]

In fact... Maybe you are right... It's difficult to say, I have so much bones...

[snow harness]

Is there a way to clamp a forward vector to ensure it can only be so different from a certain forward vector?
I've got the forward vector of the controllers and the camera, and I'd like to clamp the forward vector average so it can only deviate so much from the Camera forward vector.

It's for a VR chest rig rotation. And it works great when you keep your hands in front, but if your hands drift behind the camera the whole rig whips 180, so I'm trying to clamp it per the camera rotation.

[surreal peak]

Take the DotProduct of them and use ACosD to get the angle

Despite that there is no way to clamp anything with just a simple node

A single vector has no "angle"

[snow harness]

That may work. Ill give it a try. Thank you

[charred grove]

guys i need help D:

cant amke character look towards the mouse im dying lol

[hasty elm]

So I followed a tutorial and put together this blueprint but I've run into an issue where rapidly pressing buttons causes the animations to cancel into each other but never complete

[surreal peak]

Shouldn't you set that boolean to true somewhere?

[hasty elm]

That'r right I didn't think about that, thanks

I would use a delay function in this case, right?

[surreal peak]

No, the way it looks you should set it to true right after you check if it's false before playing the montage

It will be unset after the montage is done

That's to gate you from spamming

[hasty elm]

Wait so what should I link the true to?

[surreal peak]

Nothing

[hasty elm]

Wait I'm a little confused do I add another branch?

[surreal peak]

No?

Just set the boolean to true

You are checking if "IsPunching" is false

But you never set it to true after that

[hasty elm]

Oh okay but what function do I use to set it to true?

[surreal peak]

None, just set the variable

You are literally doing this already at the end by setting it to false

Just copy paste the setter and click the checkbox

Also if you are that lost with a simple variable set, then learn the fundamentals instead of blindly following a tutorial

That's not how one learns anything. You need to learn the programming stuff first and then watch the tutorial to create the system. Otherwise, once the tutorial is over, you can't change it to fit your game

[charred grove]

guys

how do i make player look at mouse

[surreal peak]

Have you looked for tutorials online? Because there are most certainly some available

[charred grove]

yes i did

there are too little

and those teach how to do a shooter aim offset

i dont want guns in my game

[surreal peak]

Aim Offets aren't only for Shooters and Guns