blueprint

[versed zealot]

ok, I can do that. just get data table and then for each it?

[odd ember]

I think that's your best option yeah

data tables aren't fully loaded databases

[versed zealot]

Ok I'm like not sure how, cause it just returns "row names" is there a way to get a structure returned?

something I can break the data out of

I see.

So I just get data table rows names and then, get data table row

each element

[versed zealot]

Nice, thanks

[sonic crow]

I got a short, quick question, I managed to get my Widget to appear and work on hover, everything is perfect. The only thing I want to change is the default navigation for the gamepad, currently it uses left thumbstick, i would like it to use right thumbstick instead. I have a button BP and a menu BP. I am not sure how to change the default setup for the navigation

The button BP is a default preset button bp for button

[odd ember]

just for the UI or for the game?

[sonic crow]

just this UI

[odd ember]

no idea tbh

[sonic crow]

it is not a pause menu, so moving the left thumbstick moves my character and the menu

[odd ember]

you can use Set Input Mode UI

[sonic crow]

ty i will play with that

[eternal flax]

how to create a prompt like 'Press E to Interact' when i aim at a object

[gentle urchin]

Linetrace for interactable object?

[eternal flax]

i know about that, but how would i add the text to the screen? i can't do a tick event and then add and remove widget every frame

[marble agate]

Promote the widget to a variable, check if its valid, if its not add the widget, if it is valid do nothing.

[eternal flax]

Thanks i'll try that

[sonic crow]

this might explain the challenge, no answers found on blogposts for this kind of remapping, perhaps there is another solution to get the same effect?

[icy dragon]

Or just use overlap events.

[marble agate]

Yee though they wanted it to show up when they looked at it

Overlaps would definitely work really well tho

[icy dragon]

OnBeginOverlap -> Other Actor == Player Character -> Create Widget = Set Widget reference
OnEndOverlap -> Other Actor == Player Character -> Widget reference IsValid -> Remove From Parent

[wooden rapids]

Does anyone knows about the Replay System with the Console Command in BP the question is the Camera spawn i think in the middle of the Map ,how i can set the Camera to a specific location befor replay or attach it to a specific Objekt before Replay

[trim matrix]

I do not know how to change the defualt navigation keys but you can disable navigation and program your own.

You can disable navigation in each of the buttons details menu. Under the navigation section you can set the left,right,up,down settings to Stop.

Then you can make your own navigation by overriding functions within the widget

I do beleive the widget still needs to be focused somehow in order for those events to fire though.

[sonic crow]

Would this still work so that my character can still move using the navigation? Or does this disable everytihng?

[trim matrix]

Sorry this is all I can suggest. It may not be the best way of doing this

This should not affect your character as long as your game is set to the Game and UI input mode

[sonic crow]

ok cool, my goal is to move like normal whether or not the HUD is there. The hud is merely a micro menu to change your weapon, similar to that of the Witcher 3, where you can move and still interact with your HUD

Thank you I will make some coffee and take your suggestions 🙂

[trim matrix]

Good luck. There may be something else that I cannot remember to make it so you can move and use the ui at the same time.

I feel like I had trouble with that years ago.

[sonic crow]

lol cool thanks 🙂

[trim matrix]

gl

@sonic crow let me know if you figure this out or run into more problems with this issue.

[sonic crow]

will do, will post the solution once i get it

[icy saddle]

Is the point of having multiple event graphs just to organize your BP nodes into sections?
and is there something special you have to do to set up multiple event graphs or you just treat it as if it was still one big event graph?

[brazen merlin]

Maybe there is something else to them, but yeah i just use them to organize

[faint pasture]

Read that node. The target of that node is a player controller. Of course it's not working if you try plug a character into it.

Instead of trying to give it a character, give it a player controller. Hint, drag off the target node to only show nodes that can give you what it needs.

[pure tangle]

Sweet.

[icy saddle]

cool, thanks!

[trim matrix]

hey what is the wisest way possible to apply damage to a group of enemies? I have a sword that checks if its an enemy or not, and if it is it hit to enemy damage will be applied. but how to do that to multiple enemies?

[tawdry mural]

parent enemy bp with apply damage

the make childs that you actually put in the game

enemy bp has to have the apply damage node , not you character

[trim matrix]

i have event point damage on my enemy

[tawdry mural]

or if you want to keep it in character bp just check for every type of enemy

[trim matrix]

yeah how to check that

i hear interfaces but id ont know how to apply it to this problem

[eternal reef]

Event Any Damage works aswell

[trim matrix]

i made spawner also and i try to get reference from the spawner but it doesnt work

[tawdry mural]

just cast to that bp

from event hit

it should apply damage to every instance of it

[trim matrix]

hmm ok seems to work but i have to put a shit load of different enemies there now

[eternal reef]

You just need to have a reference to the hit actor
Be it overlap, line trace or whatever
When you hit a target you get the reference of it by the linetrace hit / overlapped actor / etc.
Then you can either cast (which I wouldnt recommend) rather use an Interface or the apply damage node with the hit actor
In the Enemy itself you need to setup the corresponding function like "Event Any Damage" if you use "Apply Damage"

[trim matrix]

all my spawning makes different bps

do i just have to put lots of Or booleans to hit actors or is there nicer way?

also dont seem to work for the next enemy spawned from the same class...

[eternal reef]

With the "Apply Damage" you dont need any actual reference to your different BluePrint Enemies in your hit logic

[trim matrix]

i know

but i have sword

now it hits a wall or something it will stop line trace because from first line trace it stops the others

i have sword with 6 sockets of linetraces

[eternal reef]

Then you need to set it up that it only recognices Enemies if you want it to ignore anything else than enemies

(In the line trace)

[trim matrix]

well yeah that was my question xD

easiest what i can think of is if there is like if a actor is ai or something

[eternal reef]

Oh I see 😄
You can set it up that it only affects objects of type Pawn for example

Or set up a custom trace channel which is set to ignore on default and only affects your enemies

[fair magnet]

Hey yall :o
Currently trying my luck with splines but...
I can't drag them around for some reason.
On Construction I spawn a spline component and add a spline mesh to it. but it just won't let me drag the spline points

[trim matrix]

@eternal reef how to set it up that only affects of type pawn?

[fair magnet]

I can't use a "hard" added component since it's kind of procedual

[eternal reef]

@trim matrix LineTrace for Objects and set Objects Type to Pawn

[sonic crow]

hi guys, i am new to overriding default up up and down navigation for a HUD widget/UI. How dow I set on key dow nt oright trigger?

[trim matrix]

i dont know

my character is pawn too

[eternal reef]

@trim matrix
https://www.youtube.com/watch?v=6ZFnPliFSX0
Around 2 Mins it is explained

[trim matrix]

i make enemypawn then

[eternal reef]

LineTraces have the option for "Ignore Self" Or on Hit has Tag and Check != "MyPawn" or something if the sword is its own object

or =! Owner (you might need to set the owner of the weapon to your character)

[trim matrix]

yep that did it

thanks a lot!

[sonic crow]

does anyone have documentation on this, or a resource i could read. There seems to be nothing on this online. I assume I need to create an input function inside of my HUD that overrides the up and down inputs...i have never done this before , would love to read up about it not sure where to look. is there not a way to create an input action and assign it to the navigation?

alternatively is thee a plugin i can buy for this

[surreal peak]

@sonic crow Problem is that UE4 has the navigation keys hard coded iirc

The only thing you could do is override the OnPreviewKeyDown to filter

If you need this to work specially tailored to your keys then either don't use Focus Navigation at all or you might need to dive into cpp

[sonic crow]

Yeah, sounds about right. Would Using an array of allowed action keys for UI/HUD mode within the player controller work?

[surreal peak]

Yeah you could do that

But filtering with preview key down doesn't allow you to add new ones

If you need new keys you will need a custom solution

Unless they exposed the navigation keys by now

[gentle urchin]

Wouldnt it be better to listen to all input keys, and just blind those who shouldnt work?

then you could easily have different key functionality across different widgets

instead of having multiple lists

[supple dome]

having new navigation keys require c++ but its not that complicated
something like

FMGNavigationConfig::FMGNavigationConfig()
    :FNavigationConfig()
{
    KeyEventRules.Emplace(EKeys::Gamepad_RightStick_Left, EUINavigation::Left);
}

[slender fjord]

projectile does not fire event hit if im shooting at a character actor after a certain distance , work on base actor bp... anyone had this problam?

[eternal reef]

Are you sure the projectile is "actually" hitting, so do you see it bounce off or something?
Could be the life time of the projectile ends and it gets destroyed before actually hitting anything

[odd ember]

I got a vector math question: if I want to translate some world location off screen to an onscreen position near the screen edge relative to where the would position is, what math do I need?

e.g. if the location is behind then it's at the bottom of the screen

to the left of camera actor > left of screen

etc.

[gentle urchin]

Need a reference location , and screen bounds location atleast

Accounting for view angle and fov

[odd ember]

I can account for those with dot

but don't won't give me full direction as left/right are equal

[gentle urchin]

Yeah i wouldnt use dot but im sure one could make that work aswell. I did something similar a while ago calculating the 'viewport bounds' in world location

[odd ember]

how did you handle it?

I tried projecting the location onto the cameras forward normal as well with little success

would the cross product between the dot normals work if I projected them onto the camera normal?

that should translation direction from world to screen no?

then maybe use viewport center to multiply along to screen edge?

[gentle urchin]

Kiddo wont sleep so cant check the setup i used rn

[odd ember]

I see, no worries

[gentle urchin]

Can you not just project world to screen, and clamp it?

[odd ember]

world to screen returns zero vector for off screen

[gentle urchin]

well.. not mine 😛

[odd ember]

that's weird

[odd ember]

I'll mess around with it and see if I can get values

[gentle urchin]

unreliable values it seem like

[odd ember]

Welp

for which method?

I see

FMatrix is definitely outside of my knowledge range

Rip

I'll take a look thanks

maybe I can create a BP wrapper for just that

[desert relic]

How do i make my custom cursor act like mouse

for example, B button acts like a click

[maiden wadi]

@odd emberAre you just trying to position a widget on screen like a waypoint/hitdetect indicator?

[desert relic]

on clicked works only for mouse

how do i make it work for gamepad

i have the cursor widget

and its moving

but idk how to create click

[odd ember]

yeah with the caveat that it needs to be fairly accurate in terms of screen direction

[odd ember]

You may need cpp for widgets but for world you can trace

[pulsar rampart]

Hey guys i need some help can anyone send me a code that makes a character move left and right only please

blueprints

[odd ember]

don't think anyone can send you code

[pulsar rampart]

like a screenshot

i meant

[odd ember]

but you can look at the 2d sidescroller template

[pulsar rampart]

what's that?

[tawdry surge]

Its the move right node in most template character BPs

Right is an axis value of 1
Left is -1

[pulsar rampart]

this

[tawdry surge]

That's the mapping

But yes

Find the move right event in the character and that's the logic

[pulsar rampart]

Ok thanks

[odd ember]

the templates are things you can pick when you start a project

first person, third person, sidescroller etc.

all of them loaded with this code

[thick dirge]

does anyone know how to stop AI health bars from moving up and down depending on my distance from them?

[final cape]

when I try to change my character in game, the character has no animations. pls help

Thanks you , I will try this. I know the animbp is setup in the character

also is there a tutorial how to make animbp. i would like to change the walk to a feminine animation i have

[odd ember]

you're probably better off asking in #animation

[final cape]

ok thank you. she has the animpbp but she is not walking , just sliding across screen

i tried to make a change character function in the level blueprint

[odd ember]

probably more about the animation state machine then. but you'll get more info in #animation for sure

[final cape]

thank you

[thick dirge]

i made 2 widgets the same way, or so i thought... 1 of them increases in size the further away from them i am and the other, moves up and down... im not sure what i did different

[odd ember]

only do things in the level blueprint that are unique to the level. if it's something for the character, you should do it on the character. if it's something to do with animations, you should do it in the animBP etc.

keep everything responsible only for itself

[final cape]

Understood!

[thick dirge]

https://www.youtube.com/watch?v=4eLWFeJy7HE is what it looks like and i will put some screenshots of anything else i think could be of use

[odd ember]

it's the viewport scaling because you've set it to screen

if you set it to world it won't do that

but you'll find it has other issues

[thick dirge]

ok thanks, i will look into it

kinda sorted it, it was mainly the way i created it @trim matrix like you said, so thank you. it was where i was setting the anchor points.

[versed zealot]

Will items "Set hidden In Game = true" still block other line traces?

[odd ember]

yeah I'm getting 0 from this consistently (the incoming location isn't 0)

[high ocean]

Am I doing something wrong? I can't get collisions to change at runtime. I'm generating procedural meshes with HISMs and I take some pieces and change their collisions. For some reason, they don't update. Is this normal or do I need to better search for a bug in the code?

[safe iron]

Hey there, I got a small problem with collisions, I made a door in my game and it works fine, but something strange happens when it collides with the player while the door is still moving

I'll send you a video

Don't mind the audio, I listen to music while I create my game and I was listening to Unreal's OST (You're lucky I wasn't listening to my usual metal stuff XD)

[odd ember]

collision might be too thin

[safe iron]

As you can see, the player seems to jank round when in the way of the door, sometimes even phasing through it, or getting stuck inside of it, I have made a functions that reverses the movement of the door when it hits the player but even in that single collision you can see some jankiness, and sometimes it doesn't even detect the collision with the player, carrying it around

[odd ember]

are you using complex or simple collision?

[safe iron]

Complex, but I also tried another mesh, a normal door with no empty spaces in it and it still janks around, even though it's less noticeable

[odd ember]

it'll always jank you around unless you use ccd

[safe iron]

ccd?

[odd ember]

the main issue I see is that it pushes you through the door

continuous collision detection

[safe iron]

Oh

[odd ember]

collision is expensive to update

[safe iron]

Thanks, I'll look up what that is

[odd ember]

so collisions don't update every tick

[safe iron]

So ccp should fix that?

[odd ember]

potentially it will

[safe iron]

I'll try

[odd ember]

it's a tickbox

[safe iron]

found it

I'll see how it goes

still janky :/

[odd ember]

then that's probably as good as it gets. you can try using simple collision and see if it's better

but no doubt you'll get janked around

that's just how the physics engine works

[safe iron]

Oh

RIP

[odd ember]

in the grand scope of things it isn't a big deal though

but you are welcome to try and ask in #legacy-physics

[versed zealot]

What if you disable colllisions after interaction, and it just opens through you?

[odd ember]

to see if they have better answers

[safe iron]

Thanks a lot

[safe iron]

Could be an idea, thought of that but I wanna keep that as a last resource in case I can't figure anything out

As I have heard doors are always hell for any developer :/

[odd ember]

you can just make the door open the other way

solves your issues

collision remains

etc.

[safe iron]

Could work

but would be still an issue in case a player needs to go back to an area it previously left

[odd ember]

I mean you could make it always open the other way from the player

not just in the other direction

[safe iron]

oh

Then it could work

Thanks

[versed zealot]

A door that opens… BOTH… ways 🤯

[safe iron]

yeah

[odd ember]

#gamelogic

[safe iron]

or that slides 😎

[odd ember]

I mean doubled hinged doors exist in real life

they just aren't that common

[safe iron]

Yeah

It's a cool idea, thanks

[trim matrix]

what's best way to get to the HUD from player character ?? would it be less costly to get all actors etc at start of game and save the ref or would it be better to do it a different way ??

my thinking is get all widgets of class then cast to the HUD and save the ref at like start of game

[twilit heath]

GetController->CastToPC->GetHUD

[trim matrix]

would that work if the gamemode is what creates the HUD ??

[twilit heath]

it doesnt

[trim matrix]

as at the moment the Game Mode is main handle for most things

[twilit heath]

here i am assuming that by HUD you mean AHUD derived class

if you do not, then you should really have the custom AHUD derived class create your HUD

not the GameMode

[trim matrix]

by HUD i mean the widget which will be on screen to show player health, points etc

[twilit heath]

well, each PlayerController has a 1:1 relation to AHUD derived class that is designed to manage the widgets in Unreal

it exists only locally in multiplayer scenarios

and GameMode just informs the PlayerControllers which subclass of HUD they should use

if you ever find yourself searching for a widget with GetAllWidgets variant function

you should reconsider that approach and forget that function exists

[trim matrix]

this in single player

[odd ember]

ideally the player controller handles the hud, not the player character

[trim matrix]

i can move it to player controller

just trying to think where would the points the player gets be best to keep track of

[odd ember]

consider the player controller the middleware between player and character

you can set up bindings in the player character

[dim robin]

im struggling referencing a metahuman. i'm trying to change the shirt material through te player controller, but i fail the cast to the metahuman blueprint. get owner is not enough apparently. what am i doing wrong?

[trim matrix]

for keeping tracks of the points ??

[fierce current]

how to create a character who can run on the walls? With the person from the beginning

[odd ember]

for everything. but yes also for keeping track of points

and any other data that straddles the boundary between gameworld and real world

[trim matrix]

??

also as it controller I can get to that by casting once on player which be effective

[odd ember]

do "points" exist in the gameworld? not really. they exist only for the player

[trim matrix]

are so you mean like as it's something that isn't grabbable from the world it would be more of something thats part of something in gameworld instead

like player charactor it's grabable from game world as it exists in there

[odd ember]

I mean not really because there are things that don't exist in world that are still part of the world. like AI behavior still exists in world, but it's not "grabbable" either

[trim matrix]

ohh

fairs, hmmmmm

i'm struggling with this one don't really want to be using Dispatcher everwhere if you get me

[odd ember]

but it's worth thinking about for whom you are making your data

well dispatchers are universally useful

[trim matrix]

i have point 10 for speed pellets

[odd ember]

and this is indeed one of the cases where you'd want them

but

you technically already have dispatchers setup

[trim matrix]

yeah well i have multiple at this stage, the dispatchers has needed some additional one. But i can see what your saying use dispatcher to see what has been picked up then from that grab the points that pellet has by passing ref through dispatcher

like I did with the increment of the pellets eaten thing

[keen wedge]

Hi all, does anyone know if it's possible/how it's possible to change the icon/sprite that is displayed for a Blueprint actor that you drop into a map? I'm growing tired of all the white spheres and would like to add something which reflects what the Blueprint actually is (enemy spawned for example)... just like the sprites for lights, player start and so on.. I'd like to do that... 🙂

[odd ember]

IMO all you need to do is have the spawner manager communicate to the player controller that it exists when you start the game

[trim matrix]

well i have that already

[odd ember]

so you can use that information in your widget

and you should be all set?

[odd ember]

billboard components allow you setup sprites

[keen wedge]

Hi @odd ember , I dont want them to show in the game though, just in the map when its in the editor...?

[odd ember]

well there's a Hidden in Game option

[keen wedge]

Weirldly, having added the Billdboard to the Blueprint, its actually only showing in the editor anyway. By default I have a little dinosaur head... so I guess I can change this to a different sprite... however, the white sphere is still present. I'm guesing that's coming from the Scene Component which is the Root component of the Blueprint. I can't see any options to hide that sphere?

[odd ember]

if you replace the root component the white orb goes away

[small ridge]

Hoi, anybody know if there is a way to serialize and modify from the editor a variable field without exposing it to other blueprints ? (like decorating a private field with [SerializeField] in Unity). Or if there is a blueprint idiom for a similar behavior ?

[keen wedge]

Do you ever need the default root component? Its not something I've really ever concerned myself with, but dont want to change something that might cause a problem later on.

[odd ember]

are you asking if you ever need a default root component?

yes. yes you do

it doesn't have to be the component that's given to you, but the entire idea of an actor is predicated on the fact that there is a root component

[keen wedge]

Sorry, I meant more as in "the one it gives you by default", not whether you needed one at all etc...

[faint pasture]

@keen wedge An empty actor just has a scene component as root because it needs something. You can replace it with any other subclass of scene component.

[keen wedge]

Thank you.

[odd ember]

#animation

[keen wedge]

Another quick question... I've just discovered that I am unable to move any of the objects in the map. I've closed UE4 and re-opened it, still the same. My level design put the blockout together. Is it possible to set some kind of "lock" so that a level can be edited? I just tried adding a new blueprint actor, it appears, but again I cant move it. I can change the values in the transform and move it that way, but not with the XYZ widget control etc?

[odd ember]

animation graph is not the same as blueprint graph

[keen wedge]

Never seen it before..

[odd ember]

nope and doesn't sound like a blueprint issue

I'd ask in #ue4-general

[keen wedge]

it was my blueprint actor I was trying to move... 😦

[gentle urchin]

Unless construction script is setting thræe location

[keen wedge]

not to work.. will ask in the other channel

[sand shore]

that doesn't matter because it is an editor mode issue

[keen wedge]

ok

[odd ember]

meanwhile if anyone has any more suggestions for projection off screen world locations onto screen hit me up

[gentle urchin]

You want the relative screen locations for actors outside of the viewport, right? Clamped to screen edges

[odd ember]

yeah

basically screen direction converted from world direction

[gentle urchin]

Gotcha

[earnest tangle]

Determine if actor is within camera frustum, if not then calculate direction from center of screen, then use that to position marker at edge maybe?

[odd ember]

yes but how is the question

dot product for determining if in view

but outside of view it's a black box

[past spoke]

hey guys
anybody know how to revert this function back to nodes

[earnest tangle]

well if you can determine whether it's in/out of view, then you could project a point to world some distance from center of view, then use that to calculate the direction and use that to project a point at the edge of screen, no?

[past spoke]

I want these nodes to go back in the main event graph

[odd ember]

not sure what you mean here

[past spoke]

here

[odd ember]

if you're talking about projecting the world location on screen

then I've tried that

[earnest tangle]

would this not work? this way you can get a direction, and you can use that to calculate which angle the marker needs to be at the edges

[odd ember]

again I'm not sure what you're doing here? when you're projecting to the center of the screen, what do you mean by that? when you project a vector to screen it doesn't get centralized?

[earnest tangle]

well the project from center of screen is just so you have a world position you can compare the other positions to

I suppose you could also just compare against camera position

[trim matrix]

let's say I wanted the game to start with MainMenu then when you click play it loads the map . would this be okay to do or would thinks break as there aren't there from what the whole game runs ??

[odd ember]

the problem is that offscreen projection return 0

[trim matrix]

also would i want two Game Modes I'm guessing the one now and a MainMenu one in addition

[odd ember]

the best lead so far is using world location projected onto the normal of the camera

but even that isn't very good

[earnest tangle]

well you don't need to project the offscreen position, you'd just compare the world positions to get the direction, and use the direction to calculate the number of degrees where it needs to be at the edges of screen

not sure if it's workable so easily tbh, haven't exactly done this but seems something like that could do it

[odd ember]

I just tried this without luck

[earnest tangle]

Yeah I guess it's a question of how do you calculate the angle between the center and the actor

[odd ember]

I don't think it's that simple

[earnest tangle]

how so?

[odd ember]

where do you get the angle from? dot product is the closest thing, and even then you are facing an issue with left/right being equal

[remote totem]

Hey guys, can anyone help me recreate transform that is happening during Attach comp to comp node ? Right away I want to set up a lerp to this transform and then only attach to avoid instant snap

[past spoke]

can somebody please help me?

[gentle urchin]

Whats the view type? Topdown, thirdperson?

camera angle* : P

i bet its not top down

[odd ember]

third person

[odd ember]

but yeah something like this with respect to third person would be a start

seems to be all in the vector math

[gentle urchin]

Yeap

[past spoke]

anybody?

[sharp rapids]

How are you calculating the angle?

[odd ember]

angle isn't necessary if direction is given from center of screen

or even as the projection is happening onto the view frustum

[odd ember]

tbh I'm not really sure I grasp the 4D vector part. like what's the case if the 4th number is 0? how does it translate into BP?

ah I see

so help me walk through with this

dammit

[wooden rapids]

Unreal 4 replay System does not play any Animation or Montage just Movement , but replicated box are checked everywhere , does anyone know whats the issue with

[odd ember]

when you say deproject, you mean deproject screen to world aye?

okay and that can't be the location of the other actor?

or the transform of the other actor

[heavy lion]

I want to create a set of variables, that I can define versions of, and then blend between based on a single 0-1 value

I need 8 or so variations of this set of variables to blend between.

What would be the best way to do this?

Can I create a child of a struct? OR where would I define the variations of each?

[odd ember]

that was a reference to this

[past spoke]

can somebody please help me???

[trim matrix]

When the game resets what would be best way to do this. I need the ghost to be moved back into here. Obvs I need the location to not be ontop of another ghost.

Any useful nodes that could do that for me ??

[trim matrix]

I will have a ghost manager like i have pellet manager

[past spoke]

how do i revert a function back to normal

[odd ember]

deproject world to screen gives me a location and a direction already, so perhaps the hard work has been done? or do you mean the other way around

[trim matrix]

but ghost manager still needs valid location to where it can move a ghost or spawn a new one

[odd ember]

well if you're having a ghost manager then you can have the ghost manager seek out ghost spawn points and spawn ghosts there

the ghosts would register themselves to the manager, as would the spawn points

[icy dragon]

Function's not looking sus tho
What do you mean by "normal function"?

[odd ember]

(so no hard refs)

[past spoke]

because I put a bunch of nodes inside the function to clean up my code

but now I want them back out like this

[icy dragon]

I don't know about you, but have you tried undoing?

[past spoke]

it was done a while ago

[odd ember]

I think I have it down on one axis perhaps?

[icy dragon]

Just copy whatever's inside the function, paste it on the main graph, move the connection from one end to the other.

[past spoke]

sigh

[odd ember]

this seems to work on the x axis for the screen, but not on y

[odd ember]

is there any reason you're not just copy pasting the nodes out of the function?

[past spoke]

because now its confusing?

[odd ember]

well that's on you then?

[past spoke]

ok?

[icy dragon]

But why you want to bring it out from a function?

[odd ember]

I'll try 1-y

[past spoke]

because im adding more stuff

[odd ember]

thanks

[past spoke]

and I want everything in front of me

[icy dragon]

Just open the function, what's the hold up?

Sorry for having the answer to be that obvious.

[odd ember]

I mean you've been given the solution that exists. I don't know what you expect? some magic undo function?

use version control if you want that

I tried without the normal projection and it failed. Y values won't work regardless, even if X seemed to work well. I'm not sure this method will work at this point

I do

it doesn't

it is working on screen

but it defaults to 0,0

because of the clamp

what's worse is I can't really debug it because I don't understand the black box magic of FMatrix

ok so W is direction

but also like... magnitude?

this is the stuff that turns brain into goo

quaternions I gave up on understanding once I realized that I could get a rotation from axis and angle to be consistent

I'm perhaps just looking for the equivalent here

I get it

so looking at this

the opposite translates directly into 2d

and for some reason it likes to zero out for offscreen objects

bool UGameplayStatics::ProjectWorldToScreen(APlayerController const* Player, const FVector& WorldPosition, FVector2D& ScreenPosition, bool bPlayerViewportRelative)
{
    ULocalPlayer* const LP = Player ? Player->GetLocalPlayer() : nullptr;
    if (LP && LP->ViewportClient)
    {
        // get the projection data
        FSceneViewProjectionData ProjectionData;
        if (LP->GetProjectionData(LP->ViewportClient->Viewport, eSSP_FULL, /*out*/ ProjectionData))
        {
            FMatrix const ViewProjectionMatrix = ProjectionData.ComputeViewProjectionMatrix();
            bool bResult = FSceneView::ProjectWorldToScreen(WorldPosition, ProjectionData.GetConstrainedViewRect(), ViewProjectionMatrix, ScreenPosition);

            if (bPlayerViewportRelative)
            {
                ScreenPosition -= FVector2D(ProjectionData.GetConstrainedViewRect().Min);
            }

            bResult = bResult && Player->PostProcessWorldToScreen(WorldPosition, ScreenPosition, bPlayerViewportRelative);
            return bResult;
        }
    }

    ScreenPosition = FVector2D::ZeroVector;
    return false;
}```
I do see now that it only returns zero vector in a fail state

deeper into the abyss we go

bool FSceneView::ProjectWorldToScreen(const FVector& WorldPosition, const FIntRect& ViewRect, const FMatrix& ViewProjectionMatrix, FVector2D& out_ScreenPos)
{
    FPlane Result = ViewProjectionMatrix.TransformFVector4(FVector4(WorldPosition, 1.f));
    if ( Result.W > 0.0f )
    {
        // the result of this will be x and y coords in -1..1 projection space
        const float RHW = 1.0f / Result.W;
        FPlane PosInScreenSpace = FPlane(Result.X * RHW, Result.Y * RHW, Result.Z * RHW, Result.W);

        // Move from projection space to normalized 0..1 UI space
        const float NormalizedX = ( PosInScreenSpace.X / 2.f ) + 0.5f;
        const float NormalizedY = 1.f - ( PosInScreenSpace.Y / 2.f ) - 0.5f;

        FVector2D RayStartViewRectSpace(
            ( NormalizedX * (float)ViewRect.Width() ),
            ( NormalizedY * (float)ViewRect.Height() )
            );

        out_ScreenPos = RayStartViewRectSpace + FVector2D(static_cast<float>(ViewRect.Min.X), static_cast<float>(ViewRect.Min.Y));

        return true;
    }

    return false;
}```

aha so they do just take the world position and add 1.f as W

sounds like a PR here would be nice

I see

view projection matrix conveniently exposed to BP

so far so good

lucky break

what now though

so I tried a few things with this, but I'm still not getting anything worthwhile. the vector doesn't seem to give good results. what do I have at this point?

the vector itself has pretty low values, at a magnitude's difference between each subcomponent

but not low enough to seem normalized

even following the function as is doesn't do anything

rip

[wooden rapids]

Does anyone knows about the Replay System with the Console Command in BP the question is the Camera spawn i think in the middle of the Map ,how i can set the Camera to a specific location or attach to .an Objekt before Replay starts

[odd ember]

is there a specific event for replay start?

I followed the function verbatim

and it's still not working

yeah but even with clamping I should see something at the edges

and I'm getting nothing

[wooden rapids]

Console Command :demorec Test and to stop Console Command :demostop than to play Console Command: demoplay Test ...you can type on test what name you want

[odd ember]

and quite frankly I'm using the base arithmetic nodes here

so I doubt there's any difference

[odd ember]

I don't know what this means

but anyway if there is an event on replay start, then use that

otherwise, you might be out of luck? this seems more sequencer based than blueprint

[past spoke]

can somebody help me with jump transitions?

[icy dragon]

https://www.dontasktoask.com

[odd ember]

sounds like #animation

[wooden rapids]

I just know the CC way on BP otherwise you make a Class with C++ and use the Blueprint from them like these Tutorial https://www.youtube.com/watch?v=8fEGDY7mg3s

[past spoke]

well its in the blueprints

[odd ember]

looking at the comments they seem to expect some sort of normalized value that I'm not getting at this point. most likely because it's out of view

[odd ember]

I don't know what you want?

[past spoke]

look at my jump

[odd ember]

that might be why they're not working?

[wooden rapids]

I dont know what you want ,too

[icy dragon]

#animation

[odd ember]

I don't need anything from you lol. thanks anyway

[odd ember]

yep that's #animation

[wooden rapids]

looking first what you asking, and i give you a answer about sorry, maybe i understand it wrong

[trim matrix]

anyone help please

[odd ember]

it was a question for you to figure out. not something I needed a response to

[trim matrix]

My game mode always fails only recently

it's the defualt one so game is already using it

[heavy lion]

Anyone know how I can hide certain ouputs from a struct?

When breaking a struct

[icy dragon]

I could give some help on this over on #animation - I'm frequent there.

[heavy lion]

ahh sweet. Thanks @odd ember

[odd ember]

debug it with breakpoints

my take is that it is likely race conditions

[trim matrix]

It's like it's not setting it

[odd ember]

.

[wooden rapids]

Does anyone knows about the Replay System with BP the question is the Camera spawn i think in the middle of the Map ,how i can set the Camera to a specific location or attach to an Objekt before Replay starts , its a Spectator Camera i can Move but where i can have acces about

[trim matrix]

awww I think I see an issue

shouldn't an AI Controller be used from start

[odd ember]

nothing is used from the start

[trim matrix]

like from game start

[odd ember]

everything is blank

[trim matrix]

that's what's happening the AIController isn't ticking along so it never sets the Game mode which in turn never sends over the variable

[odd ember]

.

[trim matrix]

I need to bassically set the reference for an AIController on the game mode

but because AIController isn't running when there are things using it. It dosen't set it self og GM

[odd ember]

^

I'm only clamping within viewport

not at this point

the issue is that the values aren't normalized at this point

it doesn't show up on a clamp lol

the values are completely maxed out too

[trim matrix]

if I cast to the Grid AI Controller what would be it's wildcard anyone know

[odd ember]

they expect this to be normalized at the end

and it most certainly isn't

[trim matrix]

if I use AIController is wants controlled actor which becuase I am doing this on the Game Mode it won't have a ref to a controlled pawn

[odd ember]

and tbh I think their way of normalizing the range is wrong too

actually I just realized the desired view isn't hooked up. but I'm not sure what the desired view should be hooked up to? viewport size?

nah it can't even, it's a FMinimalViewStructure

f knows where I get one of those from

[odd ember]

make the game mode trigger the AIC controller events

[trim matrix]

so found that if I place the AI it works fine

if I spawn the AI the AIController dosen't get spawned which means AI breaks

any way to have AIController spawn when AI spawns in any node you know of ?

[heavy lion]

Bah! I Cannot figure this out.
I have this struct, and I have the full day cycle expressed as a 0-1 float.
I need to be able to blend from 0 to 0.25 to 0.5 to 0.75 to 1 (0 again)
I cannot for the life of me figure it out

[icy dragon]

Whoa, that's a lot of struct member.

[heavy lion]

I could do this easily if I used a curve, but I would need a different curve for every single variable.

[brazen merlin]

this looks like a case for Modulo!

% this thing

[heavy lion]

@brazen merlin That aimed at me?

[brazen merlin]

yes

[odd ember]

the only way is to spawn the AI controller on the AI itself

[brazen merlin]

did you set this? on the pawn?

[odd ember]

Muffin 👀

[heavy lion]

@brazen merlin How would I go about using that to sayyyy lerp between 4 sets of variables?

[brazen merlin]

you know, i dont know your setup, but from what you described, you always want the remainder/decimal value and not the whole number part. Modulo or Modulus returns just the remained. So it is always fixed between 0-1 essentially.

[heavy lion]

I need to simply be able to blend between a 4 points using a float as the alpha

[odd ember]

lerp(lerp(a,b), lerp(c,d))?

[odd ember]

but Conrad is right, a curve seems more appropriate here

[heavy lion]

@odd ember I have used curves in the past. But for a much simpler setup. A curve for the intensity, a curve for the colour so on and so on

[odd ember]

in either case I also gave you a lerp solution

[heavy lion]

Im just not sure how to implement that in blueprints @odd ember

[odd ember]

3 lerps

2 lerps feeding into a third

[brazen merlin]

i did not suggest a curve 🙂

[heavy lion]

I didnt want to say anything @brazen merlin haha

[heavy lion]

ok cool. but what about the alpha?

[wicked magnet]

I currently am using a pre made Blueprint destructible glass system setup using Event Hit, where any projectile will shatter the target glass mesh where it collides. I was looking into modifying this system so the player's footsteps walking over the glass could be triggers to shatter the glass, but I am not quite sure how to accomplish this. If the player walks over the glass, it's not treated as a hit - they only trigger a hit if they run into the glass horizontally.

I'm new to working with Event Hit vs Component Overlap, so not sure if this is an easy modification or something more involved?

[odd ember]

oops, I saw modulo but I thought curve

welp

[odd ember]

whatever alpha you have controlling already

you can cut it off

as in, clamp it

[heavy lion]

If the alpha is 0-1
0 is midnight,
.25 is morning and so on

[odd ember]

then you have your answer

[brazen merlin]

all good. what i imagine you have is some kind of tracker of daytime, as you mention from 0 to 1, so while that progresses, you take the modulo of that result and drive that into the lerp, whenever a new day rolls over (1.0, 2.0, 3.0, etc) it still lerps all the same. not sure what the .99 to 1.0 transition looks like but i assume smooth?

[heavy lion]

bah! Its probably staring me right in the face! But I cant see it @odd ember

[odd ember]

if you normalize to range you can get 0..0.25 to be the same as 0..1

so that's one lerp sorted

although in this case I'd say you want 0..0.5 for the first lerp, and 0.5..1 for the second lerp, and 0..1 for the third lerp

[fair magnet]

I'd suggest you Have a look at enhanced Input Plugin
This is quite new so you either have to use 4.27 or 5.0 for it to be available.
With this plugin you can basically program your inputs to only fire them based on your rules.

[heavy lion]

@brazen merlin It is smooth as far as I know yes

[brazen merlin]

but 0-1 is not ideal anymore?

[heavy lion]

It is yes, I just dont know how to blend between the 5 points

0 and 1 being the same values

[brazen merlin]

sorry five points, i thout there was four..?

[odd ember]

does the amount of points you need to blend by increase for every mention? 😀

[trim matrix]

possibly not

[odd ember]

now 6 points need to be blended

[heavy lion]

Sorry haha, It needs to blend back to midnight 0 and 1 will be the same

@odd ember hoping to blend 16 points now.....

XD

[odd ember]

in either case, if you're looking for a day cycle

modulo is key

otherwise those lerps will give you smooth transitions between morning/noon/evening/night

[buoyant stratus]

I'm using a Physics Handle to grab an object from the world to my third person camera, but it doesn't follow it as I move the camera around the player? What's up with that

[heavy lion]

@odd ember Am I using modulo in conjunction with the lerps?

[brazen merlin]

yeah, but without knowing the setup, modulo sounds right, what are you using to keep track of the duration of day/night?

[heavy lion]

I am using a float 🙂

[brazen merlin]

and thats a variable?

[odd ember]

I don't know your complete setup

but if your time of day counter is also your amount of days counter

then you should modulo your floats

[buoyant stratus]

ugh never mind, I was doing some dumb stuff in blueprints, I simplified it and now it works

[heavy lion]

time of day resets to 0 after each new day. Not keeping track of ammount of days

[odd ember]

then no modulo needed

[eternal drum]

How would i bind the rotation of a parent to one of its componements?

[odd ember]

you can't

that would cause an infinite loop

[brazen merlin]

yeah, nah, that's different, i thought time just kep going

[brazen merlin]

does it have to reset to 0 or.... because it resets to 0, how long does it go for?

[odd ember]

@maiden wadi did you have any insights on creating this type of waypoint system?

[heavy lion]

@brazen merlin The duration of the full day is variable

But it can always be expressed as a 0-1

[trim matrix]

thats fixed it thanks

[heavy lion]

@brazen merlin @odd ember Something like this?

Weird. It seems to be working

[odd ember]

almost as if math works

nah must be a fluke

😏

[heavy lion]

Probbaly wrong

[brazen merlin]

well is it working or not?

[odd ember]

dunno why you have 4 lerps though

you only need 3 for 4 values

[heavy lion]

Output log seems to suggest it is setting the intensity. But the values dont look quite right

[odd ember]

not sure what the 5th value does

[heavy lion]

Lerps back to the value for midnight

[odd ember]

you don't need that

[heavy lion]

0 and 1 are both midnight

[odd ember]

so set your first lerp to be 0..0.5

and the next to be 0.5..1

done

[heavy lion]

But then the morning settings would be getting applied at midday

[odd ember]

nope

not if they are normalized

the reason it's f ing up right now is because you're introducing too many things

you only need 3 lerps

[odd ember]

.

[heavy lion]

Like so?

Because that aint working haha

[odd ember]

what's not working?

[heavy lion]

Now, when its midnight. The light intensity is where it should be when its the evening

[odd ember]

so rearrange your time of day?

if the float cycles from 0..1

you don't need to set morning twice for instance

but I'd check that the values are actually corresponding

[heavy lion]

0 and 1 need to use the same value, otherwise it pop from one value to another

[bitter star]

hi guys. how do you constrain a float value to a few specific values? I want to have a slider that has 4 options total to control the intensity of a light

[heavy lion]

@bitter star clamp

@odd ember The values are working fine apart from midday is at 23 instead of 10

Other than that its working

[bitter star]

clamp only has min and max though @heavy lion

[heavy lion]

Ah sorry, misread

[odd ember]

sounds like a normalization or time issue

the alpha you're doing should follow the time of day cycle. so if it ticks too fast

you gotta slow it down

[heavy lion]

slow down a tick?

[odd ember]

you can set tick rate to be whatever you want

but you probably need to look over at see how fast your day cycle is moving

[bitter star]

I need to be able to tell it that the values will only be .2 or .4 or .6 ...

[quasi frost]

How do I connect to the parent widget here? For example if this were an actor I would cast to the actor, but the parent being a widget here how do I access the parent?

[heavy lion]

@bitter star switch?

[maiden wadi]

@bitter starDivide by increments. Round or floor, and then multiply by the increment amount.

[wooden rapids]

Have you tried maybe a switch on int and set a Variable executes 0 set 2 , 1 set 4 and so on .

[odd ember]

yeah I found it and added it, it still did not give correct results. so I don't think the FMatrix ways works

[odd ember]

there is also:

[maiden wadi]

@bitter star Please do not hardcode values in a switch. Just get the value you're using. Clamp it to your minmax values, and then divide by 0.2. So.. If your value is 0.35, this should return 1.75. You round this which give you 2. Now multiply it by the spacing of 0.2. Value will now be 0.4

[odd ember]

the snap to grid does it for you

just input 0.2 in grid size and your value in location

[maiden wadi]

Still good to know how to do it.

[odd ember]

sure

[maiden wadi]

Also what is with that name? Grid gives me a vector impression. O.o

[odd ember]

speaking of knowing how to do things, any chance you had a working waypoint system?

well I suppose

but a 1D grid would be a float

so I guess that's... correct?

[wooden rapids]

Does anyone knows about the Replay System with BP the question is the Camera spawn i think in the middle of the Map ,how i can set the Camera to a specific location or attach to an Objekt before Replay starts , its a Spectator Camera i can Move but where i can have acces about ,thanks @odd ember but it spawning everytime in the middle of the map

[icy dragon]

Isn't Replay System mostly C++?

[odd ember]

yeah I don't see how it can work in BP

but I've said that so many times

[wooden rapids]

Mostly Bp but just Console Command

[icy dragon]

Also I think I had deja vu with that question

[odd ember]

they've been asking it all day

[wooden rapids]

😆

[odd ember]

that's not a good thing given that we can't help you

if it's cpp only then it's cpp only

[icy dragon]

😒

[wooden rapids]

no dejavu last time it was not working overall

[icy dragon]

I also can't see how you can have replay system with just console commands.

[iron wyvern]

Can I get away with applying forces (acceleration/steering/jump) outside of the tick loop or should these things be done on tick?

[surreal peak]

Axis Events also Tick

In case you are planning to move stuff between Tick and the Axis Events

[wooden rapids]

ok thanks @odd ember @icy dragon

[surreal peak]

The only thing you need to make sure of is to use DeltaSeconds properly

[wooden rapids]

it`s working but just the ****** Camera spawn location

[odd ember]

sounds incredibly hacky trying to make it work with just console commands. I said before if there was an exposed BP event you could use then maybe

[iron wyvern]

Okay, that's good to know. Now to see what it means to use DeltaSeconds here at all, let alone correctly. Thank you

[odd ember]

but I doubt it

so I don't think you can get what you want

[surreal peak]

Well if you apply a force Every Frame, then someone who has 30 fps applies less force than someone who has 60 fps throughout one second

Cause, well, one has twice as many calls

[odd ember]

@surreal peak any chance you're good at vector math... in BP? 😅

[surreal peak]

You compensate that by multiplying with deltaseconds

DeltaSeconds will be twice as high on 30fps than 60fps

You also make sure that the force you apply is the force OVER one second (if you use deltaseconds)

So if you have the variable set to 500, it will be 500 force over 1 second

[bitter star]

Thanks guys the snap to grid worked :]

[surreal peak]

Otherwise you do 500 force per frame

[heavy lion]

Well I dunno what I'm doing now haha

[surreal peak]

Which is different on 30 vs 60 fps then

[surreal peak]

I'm pretty sure I need to say "No" here.

[iron wyvern]

Got it. So potentially adding a pin to the last multply node before adding force will solve that

[surreal peak]

Yes

Also DeltaSeconds is the time between two frames, just in case that wasn't clear

Which is why it's twice as high on 30fps

[bitter star]

Now is there a way to have my value slider being magnetic to the values? @odd ember

[iron wyvern]

makes sense - really appreciate you all taking the time to help in here

[surreal peak]

UMG Sliders should already have a step size

[odd ember]

magnetic how?

[bitter star]

jump from one value to the next by steps without going through all the values in between

[odd ember]

that was that node I showed you

[surreal peak]

If you can manage to explain your issue again, very shortly and comprehensive, then I can check if I have an answer

Cause I have no clue what you need

[odd ember]

off screen world location to on screen position near relative screen edge. so e.g. if world location is behind, it shows up on bottom screen edge

[wooden rapids]

it is inside a Bp but i use Console Command to record ,stop and replay , the Event are triggered from my Character Bp , but its the Camera on the Replay it starting everytime at same location Middle of the map , i searching everywhere in the Net but nothing.

[bitter star]

@odd ember it works for the maths but when I move the slider in the detail pannel it goes through every value eventhough the result jumps from a value to the next

[surreal peak]

Aren't there a gazillion tutorials about edge trackers?

[surreal peak]

You will have to manually do that

[maiden wadi]

@odd ember I have a function that roughly positions stuff on screen or at the edge. Can end up in the middle of screen when looking right at it though.

[surreal peak]

There is a step size but only for keyboard and gamepad

[odd ember]

I haven't seen any that actually do what I need them to do, but perhaps I'm not using the correct keyword

[surreal peak]

The only thing I could imagine is that you need more than the usual tracking

Guess the "behind = lower edge" is your issue?

[odd ember]

I have on screen accounted for, I just need to account for off screen

[surreal peak]

I haven't done this in a while, but I can't recall this being super complex

[odd ember]

well it's all the sides that are my issue. I haven't found the correct math to do it

[surreal peak]

https://www.youtube.com/watch?v=vIBHpvRJS74

You mean this stuff?

[odd ember]

yep

[iron wyvern]

@surreal peak Should I store DeltaSeconds as a variable and use it on axis/input ticks or is there another way?

[maiden wadi]

@odd emberDo you absolutely need it in blueprint, or?

[surreal peak]

I think you will have to cache a variable either way

[odd ember]

I don't absolutely need it in BP no, but I'd love to be able to understand what I am doing

[surreal peak]

Either you cache DeltaSeconds and use it on the Axis Event, or you cache the Axis value and use it on tick

I think you can call GetAxisValue or something like this though

[bitter star]

Isnt there a way to say position 1 is .2 position 2 is .4 postion 3 is .8 etc?

[odd ember]

not for the slider afaik

just the value

[surreal peak]

You can use a Get Axis Value node, that has the name of your binding.
And move the stuff to tick I guess

[bitter star]

yes why?

[odd ember]

or well, in BP, not for the slider

[odd ember]

they were talking to me

[surreal peak]

Well a slider goes from 0 to 1

[iron wyvern]

Okay, good to know. Feels like this will keep me moving for now. Thanks so much

[surreal peak]

You can math that

x * 0.2, with x being an integer and 0.2 being the step size

Max would be 5 then of course

But that was not what you asked earlier

You want to snap the slider

[bitter star]

@surreal peak correct

[surreal peak]

Someone already gave you the asnwer though

SnapToGrid

[heavy lion]

What am I doing wrong here?
I am using a float of 0-1 to express a day cycle, 0 is midnight, 0.5 is midday and 1 is back to midnight.
I am trying to tell the midday (0.5) to set the sun intensity to 10. But its set to 24.
And when its at 0.0 or midnight, its -112

[odd ember]

check that your alpha value is actually correct

[heavy lion]

It is correct

[odd ember]

have you checked post normalization?

[heavy lion]

When its midnight its 0, midday is .5

[bitter star]

@surreal peak yeah this works great. Maybe I didnt expain myslef correctly. What I mean by slider is the one in the defaut tab in the details pannel. My value is public and i want the slider position to only stick to a couple value. Does it make sense?

[maiden wadi]

@odd ember I use this at the moment. Works well enough for my uses.

FVector2D UTarrionUILibrary::WorldLocationToViewportClampedForWidget(UObject* WorldContextObject, FVector WorldLocation, UWidget* Widget)
{
    FVector2D ViewportLocation = FVector2D(0.f);
    if    (APlayerController* PlayerController = UTarrionObjectLibrary::GetLocalPlayerController(WorldContextObject))
    {
        const FVector2D ViewportSize = UWidgetLayoutLibrary::GetViewportSize(WorldContextObject);
        const FVector2D WidgetHalfSize = Widget ? Widget->GetDesiredSize() / 2.0f : FVector2D(0.f);
        if (!PlayerController->ProjectWorldLocationToScreen(WorldLocation, ViewportLocation, true))
        {
            if (APlayerCameraManager* CameraManager = PlayerController->PlayerCameraManager)
            {
                const FVector CameraForwardVector = CameraManager->GetCameraRotation().Vector();
                FVector PointProjectedToCamera = FVector::PointPlaneProject(WorldLocation, CameraManager->GetCameraLocation(), CameraForwardVector);
                PointProjectedToCamera += (CameraForwardVector * 100.f);
                PlayerController->ProjectWorldLocationToScreen(PointProjectedToCamera, ViewportLocation, true);
            }
        }
        ViewportLocation.X = FMath::Clamp(ViewportLocation.X, WidgetHalfSize.X, (ViewportSize.X - WidgetHalfSize.X));
        ViewportLocation.Y = FMath::Clamp(ViewportLocation.Y, WidgetHalfSize.Y, (ViewportSize.Y - WidgetHalfSize.Y));
    }
    return ViewportLocation;
}```

The widget is nothing but a single Image of a right facing arrow.

[heavy lion]

@odd ember How would I do that?

[odd ember]

print the value?

[surreal peak]

UE4's Editor UI doesn't have a Blueprint way for this. If at all a C++ way by overriding the Property Changed functions and then snapping it there.

Maybe via Construction Script

But that only runs on instances

So in the BP itself you are out of luck

[bitter star]

@surreal peak gotcha thanks for taking the time to explain

[heavy lion]

@odd ember Yeah it seems to be completely messed up

[odd ember]

thanks. I've been doing something similar in BP. ProjectWorldToScreen only gives me a zero vector off screen as well, so I can't use that

[odd ember]

there's your answer then

[surreal peak]

I don't think you want NormalizeToRange

[maiden wadi]

That's what the second part of the function is for.

The If CameraManager area.

[heavy lion]

@surreal peak What do you suggest?

[surreal peak]

Try a RangeMapClamp

[bitter star]

@surreal peak what about a select node?

[surreal peak]

With whatever you expect as input and what you need as output

[odd ember]

so if it fails you try again, but push forward the camera vector?

[maiden wadi]

@odd ember I cheated and used the return from the first projection. If it's not considered on screen, it projects the vector onto a plane at the camera's location, and then a little ways forward and reproject it. I think it works fairly well.

[odd ember]

how do you get that projection when it's false though. that zeros out for me

[heavy lion]

@surreal peak That doesnt seem to give the expected results either

I may have the out range the wrong way round....

Thats done it!

[odd ember]

map range clamped is the correct one

in range is the range of your float, so 0..1

out range is the range you want to map to, so 0..0.25

whoops pulled an Adriel there

[heavy lion]

bah, it doesnt seem to be correct either

I thought it was but it never sets the midday to 10

[odd ember]

because you have 2 different values in the same place

use the same value

[heavy lion]

I dont know what you mean

[odd ember]

your first and second lerp, the B value of your first and the A value of your second should be identical

because they happen at the same time

[gentle urchin]

Thats one hell of a lerp/map/clamp :p

[odd ember]

I did suggest an easier one for what it's worth

[gentle urchin]

Timeline?

Curves

[odd ember]

well a curve would not be a bad idea still

[heavy lion]

I may end up doing it that way cos this aint working

And its been hours

[gentle urchin]

Tbh its hard to keep track mentally with that amount of map/clamp/lerps

[heavy lion]

Using curves is just gonna be a nightmare to manage

Gonna need a lot of curves

[gentle urchin]

How long is your daycycle?

[heavy lion]

Its variable

[gentle urchin]

Timeline

1 curve

[odd ember]

0..1 float

so curve is fine

[heavy lion]

I already have my day cycle set up, with time and date and all that jazz, I just need to alter actor properties based on the time of day

[gentle urchin]

Exactly. Curve fits perfect 😅

Atleast for light intensity

What else you got

[heavy lion]

I know it would work, but its just a pain to manage

[gentle urchin]

How so?

Isnt curve just "get value at time" ?

[heavy lion]

I would need a curve for every property sitting in the content browser. Then if i want to change a single property at any given point in the day i need to find that curve and alter it there

[gentle urchin]

Aand the that you're trying to do now is 100% adaptable for any change whatsoever at the ease of your fingertip?

I'd think most of these setting would do nicely as curves for best effect

Add a multiplier to it for easy amplification

[odd ember]

you just need a curve for sun intensity

I don't see the big issue

and even if you did need 3 or 4 different curves that wouldn't be an issue either

I got 4 curves that I used for a single AI type

[heavy lion]

OK. You made your point

[eternal drum]

how would you bind rotation of componement to its parent?

[odd ember]

it already is

children always rotate with their parents

[eternal drum]

But if it's a camera with use pawn control rotation it doesn't?

[odd ember]

you can choose to use control rotation or not

[eternal drum]

Yes but i want it to use pawn control but still rotate with it's parent

[tropic pecan]

Hey there, I'm trying to set up a function on when characters are selected or not. I've actually already set some of it up but now, I'm on question of when I set in up to be rigged from controls in the widget menu. Like a way for it to be unselected even when committed true from the player unit structure.

[odd ember]

how do you imagine this works when you control camera and pawn at the same time?

[maiden wadi]

@odd ember Hmm. Seems there is a problem with that function I was unaware of. Was messing around with it some. I only use it in a top down manner for RTS/RPG style. It apparently needs altering to solve the issue where player camera is looking directly away from the target.

[odd ember]

that's fair. in the meantime I did make some progress by figuring out rotation towards a target on screen

the question is now if I can use that together with some distance away from the center to make it work

[maiden wadi]

To keep it out of the center of the screen?

[odd ember]

yeah so I have something almost functional

but it's not viewport agnostic yet

and it's unfortunately very angular

but perhaps making the circle wider and then clamping would fix that

[rough cedar]

I'm sure this is an easy one but how can I scale this axis value so that it doesnt just stay at 1.0 when I'm holding the button? more like starts at 0 and slowly reaches 1.0.

[odd ember]

so I almost got it working - rotation angle combined with forward movement on screen. however I'm finding that there is an issue with clamping of the x axis for whatever reason

[icy dragon]

Maybe you could add a simple FInterp To right after Input Axis event

[odd ember]

seems like the screen isn't the size it says it is... or something

very strange

[rough cedar]

Yeah that does seem to work but when i have a print string up to see the value it doesnt look like its slowly increasing. just says 0 then jumps to 1 when tthe interp value is reached. maybe its actually working under the hood though.

[static charm]

you have to add a new float variable

and then Set it from the ouput

and plug the same as the start/input of the interp

[rough cedar]

this is what i have

[static charm]

target will be the Axis input

[rough cedar]

ah

[static charm]

current will be what i described above

[icy dragon]

Also fetch the delta time.

[rough cedar]

like this?

[static charm]

yup and then just from your Branch, on False, Set Current Fly up to 0, to reset it.

well i mean actually depends on the control/behavior you want

[rough cedar]

seems like its working thanks!

[static charm]

for example if you want it to also smoothly descreese input on end input, just remove/bypass the branch all together.

[rough cedar]

only thing i see is the value looks like it decreases in the print string

but it looks like its working fine

let me try and bypass that and see what happens

[static charm]

hmm thats weird about the print string

[rough cedar]

oh i cant bypass the branch, i need it for sure

[static charm]

yeah sorry might need a little extra code for that.

[rough cedar]

oh the values are all good actually

yeah everythings working 🙂

thank you

[crimson depot]

I've got a function that throws an error whenever I stop the game in the editor because it's trying to get the keys to a map which is owned by another actor that gets destroyed when the game ends. I threw in a branch to check if the actor is being destroyed when getting the keys to the map but it still seems to throw the error. What's the right way to handle this?

[dreamy ice]

if i wanted to store my players weapon choices past character death, would that put them in the player controller or player state?

[brazen merlin]

Game instance? I imagine you are reloading or loading a new level. Game instance can keep track of stuff between levels. There are probably other classes but thats the one i use.

[digital palm]

How to avoid the loop of an anim montage? For a weapon equip animation for example.

[trim matrix]

so i'm trying to set an Enum for the AI

I need the individual AI to swap there Enum state

[brazen merlin]

Uhhh arent they usually a one off?

[trim matrix]

so Pink sets enum state to Chase - Chase Ambush

[brazen merlin]

We can switch to #animation also

[trim matrix]

I have base AI with the relevant things so the child AI get same abilities but it dosen't seem to want to switch it for there specific BT

[digital palm]

I can switch to that channel right now 😉

[trim matrix]

i've found my issue

[brazen merlin]

Uhhh, i dont think the enums are used right. Plugging in the enum doesnt matter what its named but what is set in the enum

[trim matrix]

has wring literal name set

[trim matrix]

plugging in Enum would let you select the value for the enum on the list would it not

rather then giving it the Enum entry value number so 0, 1 etc

[brazen merlin]

Hey if that works then do it to it, sounds like you figured it out

[trim matrix]

it dosen't

[trim matrix]

see thing is these are going to be spawned so i can't preselect in the world before running the game what states that is

I need the method of bassically calling to a location where I can then make the state change to then feed into the BT

[brazen merlin]

Methodically speaking if all other ai states fail, the default state should be self sustaining or not dependant on set variables.

[trim matrix]

well basically the way the ghost work is, Red is chase simple, Pink Chase but tried to ambush, Blue Chase but in method of patrolling near player, Orange keeps distance from player but hope you'll cross paths enough to be chatched by it

these values need to be set per ghost and won't change if i'm honest only values that would change is whether the ghost Chase, Scatter, Frightned

[brazen merlin]

Right, pacman

[icy dragon]

:V

[trim matrix]

at the moment it literally is as if each one is setting the enum state to all the same no matter how much i try and pass through the enum state which is for the right ones

heres my thinking

the specific AI actor so Ghost pink has the set Chase State

This is setting the Variable which are present on the AIGhost Base which is the one all these derive from

That chase state is into the setup node which runs at game start gives each actor there relevant specific things

The Enum then come through to AIC to then be set in the blackboard

Here

let me see if anyone in ai would know

[brazen merlin]

This

[tawdry surge]

Was camera shake replaced?

using 4.27

Trying to make a camera shake asset and it's not in my list

[faint badge]

The old matinee based camera shakes were removed along with the removal of matinee, there is a new system for camera shakes that you can see in our documentation here: https://docs.unrealengine.com/4.27/en-US/AnimatingObjects/Sequencer/Cameras/CameraShakes/

[wise star]

do you guys know how to make an array that contains static mesh in the component and can config it?

I mean config is like set visibility

I made a static mesh component array, using a get(a copy) to config it but it keeps giving me errors

[brazen merlin]

from that get output, are you dragging off and then connecting a set visibility node?

[wise star]

yes

[brazen merlin]

is Items Array of type static mesh component?

[wise star]

yeah

[brazen merlin]

those nodes are saying scene component, that's the same thing?

[wise star]

where is the scene component

I didn't see it

[brazen merlin]

below Set Visibility

[wise star]

oh yeah

[brazen merlin]

i think that means the Items Array you have is scene components and not static mesh components, are you doing something in a way where they need to be scene components?

it should work regardless, but if you're saying they're not...

[faint badge]

You need to check if you actually got a valid component, that error just means the Get node returned None . This will happen if either your array doesn't have anything at the index you passed in, or the element at that index is not set to a real value

[brazen merlin]

oh damn, i didnt even notice that

[faint badge]

Scene Component is just the parent of a Static Mesh Component. All that's saying is Set Visibility can be used with any class that derives from Scene Component not that it is operating on only Scene Components

[brazen merlin]

oh i know 🙂

[wise star]

I use this macros to set the value in the array

so it didn't set the value?

[odd ember]

macros.... 😬

[faint badge]

What index did you set and what index did you try to get?

Do Is Valid? on the output pin of the Get and see if the item is valid or add a breakpoint and inspect your values

[faint badge]

What do you not like about macros?

[wise star]

I see like a lots of type of Is valid

so what Is valid to put?

[faint badge]

Just drag off the output pin, the node is just called Is Valid?

[odd ember]

in BP in general it seems more like macros might as well be functions for how they're being used. I think the standard macros are fine by and large, even if some of them IMHO encourage bad coding style

[tawdry surge]

I thought it might have been camera shake base, but this is all I get if I use that as a base

can't pick a shake patten

[wise star]

you mean this?

[faint badge]

Yes

That will check whether the object you pass in actually has a valid value or not

[brazen merlin]

are you sure they're added?

[wise star]

okay there aren't any value

[brazen merlin]

well that was clear with the error message, but is there anything at all in the array?

[faint badge]

Then for whatever reason that value isn't being set, you need to look through your graph and figure out what the values are at each step.

[wise star]

okay

ohhh

I made it

thanks

❤️

I set a boolean value wrong so the node that set element didn't word

work*

[faint badge]

While I agree they can be abused I think they're like all tools where you should know why you're using it over something else and there's many valid reasons for choosing to use a macro in blueprints.

If you don't believe someone is using them correctly I'd recommend asking them about it and starting a discussion. I find that posting something like "macros.... 😬" can be quite disheartening to new users who may not understand the differences yet.

[faint badge]

Awesome, I am glad you got it all working now!

Generally you want to always check if an object returned from a node is valid unless you can guarantee that it will always have a valid value

[odd ember]

a bit patronizing but I get your point. I also want to point out that I've started countless discussions on topics like these all for the same reason. I think in general while UE caters to people who "just want to make games" it does so at the cost of not teaching people of some of the very real technicalities behind what they're doing. and nowhere is that more noticeable than in blueprints. so I apologize that it seems a bit out of leftfield, but when you see the same thing happening for the nth time it starts getting to you.

[winged sentinel]

why is this happening when i connect the execution pin to the macro

[odd ember]

probably something inside of the macro isn't connected

[winged sentinel]

i just figured it out i ran another macro inside of it and that one had somethign disconnected

weird how with macros it doesnt take u to where its disconnected like functiions and stuff

[odd ember]

that's just how macros be

[trim matrix]

Does anyone has any advice on the best time to show an hitmarker (im drawing it in OnPaint function)

I heard 5% of the time of a frame was the best but idk

Want to know choice from designers 😄

[odd ember]

I'm not sure what you're asking, do you have something visual to go by?

[trim matrix]

Why do u want visual ?

I'm just asking what would the best time to show a hitmarker no screen

[odd ember]

maybe I misunderstood your question then

I don't know what you mean by hitmarker in this case

[trim matrix]

😐

[brazen merlin]

like a thing from a line trace?

[trim matrix]

Guys, i just want to know what would be the best on-screen time for a hitmarker... the time its drawed on screen

it's generally less than 10 milliseconds

[brazen merlin]

sure?

[odd ember]

I mean if we don't know what you mean then it's kind of hard to make a call? also anything less than 1 frame is moot since that's the time between updates

[trim matrix]

well i said "5% of a frame" thats not rly less than a frame but k 👍

[odd ember]

you can draw it faster than that but it'll still only update on the next frame. as much as I'd love to say there's framerate independence, in the end it has to sync somewhere

[brazen merlin]

5% of a frame.... 🤔 if you're running 60fps, then 1 frame / 60 frames... that's ((1/60) * 0.05) = 0.000833.... wait that's not right

[trim matrix]

That's what i saw on ue4 forums

That's why i'm asking here to have a better answer ?

[odd ember]

we still don't know what it is that you're doing

[brazen merlin]

i dont think there are many who will see this hit marker... do you care if it's not seen?

[odd ember]

so hard to give you any worthwhile answer

[tight schooner]

The minimum amount of time to display anything is necessarily 1 frame. I would say tune it by eye. It depends on the context — everything else happening in your game visually — how apparent any visual indicator needs to be

[brazen merlin]

you know... 60 * 0.05 = 3... maybe is good?

[tight schooner]

If it's critical that the player sees it, make it generous cuz all your playtesters will be worse and less perceptive at your game than you

I've learned to make vfx stupidly obvious if they convey gameplay relevant information

If it's just cosmetic then make it unobtrusive to the gameplay

but present enough for "game feel" purposes

[faint pasture]

@trim matrix your minimum time to have something drawn is 1 frame so do with that as you will.

[faint pasture]

For a detatched camera, camera actor, BlueprintUpdateCamera in custom PlayerCameraManager, or a CameraModifier?

[midnight blaze]

Beginner question. Following a tutorial for learning the animation system, this is the underlying logic for which animation will be playing (according to pawn movement)

Why does there need to be two different get velocity blocks?

Can't those be refactored together?

[faint pasture]

To tell if you're on the way up or on the way down

could be refactored to an enum but that'll work. Or a blendspace to transition the pose from up to max height to down

That's not great tho, it'll animate like you're jumping while running up a hill....

[midnight blaze]

No, I get that, one of them is being compared to see if it's >0, and the other <0, but why can't those two Get Velocity nodes be just... one?

[faint pasture]

Because you have 3 states. Jumping, Falling, and neither.

[midnight blaze]

Not the comparison

....I'll make what I mean

[faint pasture]

It's a pure node, there's no difference

it gets called twice either way

That's a shit tutorial though if THAT's how they detect jumping.

The cutoffs should be something like +- 100 or more

not 0

[midnight blaze]

I'm doing this mainly to try to learn what like... the actual interface is. And for the purposes of this (very simple) game, it will work fine. There's no slopes to run up or down

[faint pasture]

Yeah the main gist of the Event Update Animation is to copy data from your pawn to use in your anim graph