blueprint

[odd ember]

if you mean a pointers (which is what a UObject reference is behind the curtain), then yes I know what a pointer is

[obsidian moon]

Casting is probably one of the bigger contributors to the creation of hard references and tangled dependencies in a project. By casting to uassets, such as a blueprints, you create a hard references to them. Straight from UDN btw

[odd ember]

then stop telling people interfaces are the be all end all

[obsidian moon]

Do you know what the ref tree is?

how hard dependencies impact your memory footprint?

[odd ember]

sure

do you want to consider this in BP or are you wanting to move this to #cpp ?

where it's actually relevant?

[celest sierra]

Can you guys stop questioning eachother's expertise and flexing knowledge and maybe spread it to someone who actually has no idea wtf he's doing atm?

[obsidian moon]

Do you know what the Size map is?

[odd ember]

because unless you're using casts extremely wrong, casting single objects is fine and won't have a bigger impact than using interfaces

[obsidian moon]

as your casting to things "just to check if its the class" and not using var get returns or event calls your increasing your size map which can grow depending on your project to gigs in size

[odd ember]

you're not casting to "just check if it's this class"

[obsidian moon]

there is a time and place for it with good OO practices and parent/child framework but its also nice to test against classes via "does impliment interface" for interactions and eliminate the hard ref

its all on knowing the pros/cons

[odd ember]

if you're using interfaces just to check against "does implement" you might as well use gameplay tags

[obsidian moon]

no reason to full on load a full class with tons of vars and events for a simple check via tossing a cast node in

and yes

use gameplay tags a ton

but interfaces already implimented allow for calling functions and even overriding functions

[odd ember]

interfaces are the poor man's hierarchy

[obsidian moon]

if you study any subsystem or module in the engine it sets good examples 👍

[bleak swift]

So I have a Software Cursor hooked up with this wombo jumbo system that creates animation effects for hovering and stuff though even if I call the function through a cast in my main menu Hover Button it doesn't do anything. I don't know if I'm plainly doing something wrong or if Software Cursors can just not do that

It should play that code to do the Hover Animation from Default to Hand though all it doe's is act as a still image

[odd ember]

they only exist for bridging hierarchies

and really should only be used that way

[bleak swift]

An Example
https://gyazo.com/66525bee241481216485bb94f5ab9533

[odd ember]

if you're saying that the memory footprint will be larger of a cast variable than what the variable would be anyway then I don't know where you are coming from

and with a pointer you're at least not incurring costs for vtable lookups

[obsidian moon]

Lets say You have a BP_PlayerController that you’d like to access from BP_ControllerBuddy via a “Cast to BP_PlayerController” node, with the intent of accessing some data stored on the BP_PlayerController. this will create a hard reference which we don’t want. A way to avoid this is to create a AMyPlayerController C++ class that defines the data you need, then inheriting from that native class with your BP_PlayerController. BP_ControllerBuddy can then access the data via “Cast to AMyPlayerController” instead, which is perfectly safe and no hard reference is created.

[pale flare]

well if there is anyway to help id appreciate it, im trying to do a burn effect that lasts for like 5 seconds

im new so im having alot of trouble with it

[odd ember]

are you done parroting information? can you actually dive into cpp and understand what interfaces are in UE?

[obsidian moon]

again it depends on what your doing and how your using it

[pale flare]

feel like there is a simple solution

[obsidian moon]

but telling ppl to just "cast at will" is bad advice

[celest sierra]

wish i could get some advice

[pale flare]

about what

[odd ember]

take your damage, split it into however many ticks you want, apply damage on tick until the effect expires

[pale flare]

how do i do that exactly

[celest sierra]

#blueprint message

[odd ember]

telling people to use interfaces for cases where you should not be using interfaces is bad advice

if you can use event dispatchers instead of interfaces > use event dispatchers

if you can cast instead of using interfaces > use casts

[pale flare]

im using it for this

[odd ember]

create a timer using SetTimerByEvent

[pale flare]

oki

[odd ember]

I don't know what parameters you have

[pale flare]

Damage and length

thats all

[odd ember]

but you should figure out how long you want things to burn for

right, but you should also have a tick rate

[pale flare]

that i set as a variable

i was gonna do 0.5s tick rate

[obsidian moon]

one way you might tell the player to interact with the door, would be to “Cast to BP_Door → Interact”. The two big problems with that are, for one, you’ve created a hard reference, and even more importantly, every time you want to add a new interactable type to your game, you need to cast again, until you cover every possible interactable you have. Again if you can show me where I said use interfaces for everything then quote me .... but you are just wrong. with if you can cast instead of using interfaces > use casts

You "never" have to use interfaces technically as you can always cast

[odd ember]

the tick rate determines when the damage is administered

that's fine

as long as you know what it is

[odd ember]

what's your cpp experience?

[pale flare]

the other thing is im trying to put it in a damage type blueprint

[odd ember]

untrue, interfaces are used between hierarchies that aren't compatible otherwise. you can have a "use" function for a NPC and a button, and those are distinct hierarchies that you cannot bridge otherwise. this is where you'd use interfaces

[pale flare]

where from here

or should i not put it in a damage type claas

actually idk why i am

[odd ember]

so the event is another event you'd have to setup. you can use the CreateEvent node. but basically the event used by the timer node will loop over continuously until you turn it off. the timer node returns a handle. the handle is used to manage the timer (e.g. pausing it, turning it off).

[obsidian moon]

but again going back to your statement about casting and branching expenses then you can def cast -> fail -> cast trough any hierarchies technically

[pale flare]

thanmk you ima try

[obsidian moon]

but again thats wrong

and simply untrue

[odd ember]

not in a way that allows you to use the hierachy you've made. if you have a subclass of character, and another subclass of object, you cannot bridge functionality between the two. you'd need an interface to do so

nothing untrue about this. it's just a property of hierarchies

[obsidian moon]

when you can rely on class parent/child hierarchy you do so... when you can avoid casting... you do so. When you can check against an object without needing to return data ... you do so ... when you can pure call functions. you do so.

[odd ember]

pure function calls aren't storing the data for more than just a single node. you'd know this if you were proficient in cpp

again just parroting UDN isn't going to do you favors. I'd encourage you to look at actual performance here

[obsidian moon]

if you want to create a huge hard ref dependency footprint, have hell migrating without dragging a huge tail, create circular dependency nightmares ... sure CE cast to your heart gives out

[odd ember]

and also, take a look at the code driving these issues

[obsidian moon]

I'm done here as I feel my feedback to offer a little help has poked somebody's ego

and for that I'm sorry ... didn't mean to make you feel some kinda way

[odd ember]

no ego. but if you're not willing to listen to reason, or even look at the code behind what you're talking about, can you really make a statement?

[obsidian moon]

I'm not parroting anything ... I've been around a long time but again ... I'm not here to sling credentials

[odd ember]

and if you're really teaching UE courses, I hope you're not the person behind the udemy ones

[obsidian moon]

assumptions are for !@# holes btw

[odd ember]

you don't need to. you could just say that you looked at the code. but nowhere do I see you talk about that. you bring up UDN as a badge of honor and nothing else.

if you truly were worth your salt, you'd do the research

[obsidian moon]

i'd appreciate it if you didn't assume you knew something you have no clue about. If you wanna think your an UE4 god sure.... don't insult me and make it personal

[odd ember]

well seems like I've touched someone's ego

[trim matrix]

why this chat so salt

[obsidian moon]

I mentioned earlier you can look at ue4 subsystems and modules and see

interfaces and cast uses but again

i explained the differnce in c++ casting AND BP CASTING

and i wasn't parrioting UDN

that was me explaining it to you

[odd ember]

you were using direct quotes

that were implied to be from UDN

[obsidian moon]

I used 1 direct quote and said "this is straight from UDN"

[odd ember]

I mean

[obsidian moon]

after you said i made up a phrase

[odd ember]

do you see how this looks

[obsidian moon]

which is basic UE4 understanding

everyone knows what dependancies are

hard obj refs, soft obj refs

ref viewer

footprint utlization

[odd ember]

a hard object reference is a pointer variable, is that what you meant?

[obsidian moon]

its literally 101

[pale flare]

this wont stop

like i cant stop the loop

in theory the loop should be set to fals

[odd ember]

use the handle return value from the timer node. promote it to a variable. set it to stop when you want the function to end

[pale flare]

wdym,

oh the timer

[odd ember]

https://www.youtube.com/watch?v=qc5WpNq7RFg

[trim matrix]

Each time the timer restarts itself, the looping value does not change.

[odd ember]

@pale flare

[dawn gazelle]

That there is something you can pop into a variable, and that variable can then be used to control the timer using nodes like "Clear and Invalidate Timer"

[odd ember]

you can also forego the wire directly to the event you want and instead use the CreateEvent node, which will let you pick events/functions that fit the bill

[pale flare]

this is what i tried

still didnt work sorry btw i just sometimes go brain dead on these

[odd ember]

look through the video I posted

or just the screenshot above

whichever works for you

[obsidian moon]

If you are calling this event multiple times your setting the loop status back to true and resetting the burn time.... pull a print behind the interface call and see if your multi calling it

[pale flare]

oki

not being multi called

the timer is going below 0

lemme watch the video

[obsidian moon]

print your status time before your branch

[pale flare]

the zero is the tick for the loop

[obsidian moon]

but honestly you could pull the return on the timer store the ref handle ref and clear when its done

[trim matrix]

that is what he needs to do yes

[pale flare]

how do i do the

that*

[odd ember]

the blue pin

on the set timer by event node

[trim matrix]

none of the code in the custom event StatusDamage will effect the looping timer in any way shape or form.

[dawn gazelle]

I think you mean to have this as StatusTime >= 0 rather than 0 >= Status Time

[pale flare]

if status time>=0 i want it to keep looping

if its less than 0 i want the loop to stop

[obsidian moon]

But clearing the timer handle will be more efficient vs leaving a timer there

[pale flare]

i figured

[obsidian moon]

it will remove it from the tick stack

[pale flare]

i just dont know how

[odd ember]

also just noticed you're pulling variables from a different execution thread down to use for timer event. even if these are stored you might find yourself in a situation where that won't work, and it's generally advised against. create a variable if anything

[pale flare]

I was planning to this was just a test, first time working with damage

so what should i do first

[odd ember]

blue pin

promote to variable

use after the branch

when you want the timer to stop

[trim matrix]

right click return value on SetTimerbyEvent, hit promote to variable

[pale flare]

set it to what

[obsidian moon]

Just name it damagetimer

should promote to "timer handle" data type

[pale flare]

mhm

[obsidian moon]

you can later ref this and clear to stop

another way is to set the timer back to 0.0

[trim matrix]

yes

[obsidian moon]

yes

[pale flare]

lemme try it

huh it still kept going

and the original event isnt being multi called

[odd ember]

can you screenshot your entire code block again

[pale flare]

yessir

[odd ember]

right well

you've still not hooked up the blue pin to a variable

until you do that, the timer will repeat indefinitely

[odd ember]

look at this screenshot here

this is the pin that needs to be a variable

[pale flare]

ahaaaaaaaaaaaaaaaaa

thank you

very swag

it worked

btw were you all self taught or took classes?

[obsidian moon]

I think most UE4 devs have a combination of learning techniques

youtube, classes, self taught through trial and error

[odd ember]

I learned code before I learned BP

[obsidian moon]

I have a CIS degree and was an application dev for many years before getting into game dev

[pale flare]

i know the absolute basics of coding

i was hoping bp would help me actually understand the process

besides its pretty fun

[odd ember]

I would encourage a decent understanding of object oriented programming. blueprint uses the same principles and it'll save you a lot of headache down the road

[obsidian moon]

ue4 dev was more of a hobby for like 5 years then I got serious for the last 4 and now It's my full time job and primary source of income.

[pale flare]

and how is that coming along

[obsidian moon]

but yeah just keep at it 🙂

[pale flare]

because i was planning on learning how to program in college anyway

[obsidian moon]

understanding some form of c syntax language will def help

programming in general no matter what will help

[pale flare]

i meant as a profession how is game dev?

[obsidian moon]

but node.js, angular, react, SQL, web front end are all used in some form in the industry nowdays

[odd ember]

well learning LISP or functional programming isn't exactly going to do you any favors if you're doing BP

[pale flare]

game dev is very tempting

[obsidian moon]

as a profession it is what you make it

put it like this you'll get what you tolerate

if you don't value your work/life balance and family you'll fail to set boundaries and your family will suffer

as everyone will make you feel the "crunch" and there is always more to do

[crystal pebble]

hey guys, I'm trying to follow a tutorial but I'm not sure what the node on the left is called.

[obsidian moon]

the camera blue thing is the camera object ref

[pale flare]

object reference?

[trim matrix]

GetCamera

[crystal pebble]

I'm sorry, I meant on the right

[trim matrix]

get relative rotation

[obsidian moon]

your pulling the relative rotation "broken out on axis"

[pale flare]

oh yeah on that note the only thing i struggle with is mcfookin references

[crystal pebble]

awesome thank y'all

[obsidian moon]

relative means within the actor scene btw

vs "world rotation"

[trim matrix]

thats exactly why you should learn objected oreinted programing fundimentals

[obsidian moon]

so your making adjustments/getting values within relative space vs world space

[pale flare]

Reccomend me a youtube channel or class and ill do it :)

[obsidian moon]

@pale flare you should probably sign up for UnrealLearning

[trim matrix]

not sure, I never learned from a channel or class so idk what to recommend

[pale flare]

Ill look into it

[obsidian moon]

its free and a ton of us put time towards the courses ... sign into epic account

on unrealengine.com

learn tab

all courses

[pale flare]

thank youuu

and then i also have to learn how to use blender💀

[obsidian moon]

https://www.unrealengine.com/en-US/learn

[odd ember]

I'd be careful not to stretch yourself too thin. I'd recommend starting with one thing and familiarize yourself to the point where you can comfortably do it without tutorials before starting the next thing

[pale flare]

i will say tho, ive found most of this to just be initially understanding it

like once it clicks its actually pretty easy

[odd ember]

let's see if you feel the same after understanding OOP 🙂

[obsidian moon]

its great advice

[pale flare]

oh god whats oop

[odd ember]

object oriented programming

[obsidian moon]

biggest mistake ppl make is scope management

aim for something like pong start to finish

something very very small

do everything, menus, score, everything

[pale flare]

so far i actually did all that

\somehow

[obsidian moon]

then get into gamejams

[pale flare]

i have a settings menu, health, mana, exp, skill points

gamejams?

[obsidian moon]

yup

[pale flare]

was dat

[obsidian moon]

its like a group of ppl coming together to create a concept from start to finish in a small window of time

teaches scope/project management and team work, workflow, communication etc

[pale flare]

ohhhh ill look into that too

[obsidian moon]

most really good indie titles were born from gamejams

[pale flare]

my plan originally was to just make the bare bones version of my game and get it playable then maybe do a kickstarter or something and get people to help

if i ever got there

[obsidian moon]

I think some of the best mechanics and entertaining gameplay loops come from making the most of limitations

[pale flare]

oh yeah if you dont mind me asking what game have you been working on?

[obsidian moon]

Just remember if you can't go to market it doesn't matter how big the hope and dream is

[pale flare]

no worries if ye cant tell

[obsidian moon]

just make sure you have a release in mind and you keep scope in check to hit the finish line

[pale flare]

right now im trying to make a timeline

i just finished player stats and damage types, next is probably inventory

[obsidian moon]

I've released a few games but right now I'm employed by a global events company doing pixel streamed virtual events and designing metaverse server fleet infrastructure AArch64 dedicated IQfleet systems

[pale flare]

thats awesome

on many levels

[obsidian moon]

Sr. Unreal Dev/ Programming Director

[pale flare]

Sr?

either way dats cool

[obsidian moon]

Its not games but there are alot of "game loops, gamemodes and game principles" involved

[pale flare]

that sounds fun ngl

[obsidian moon]

haha sometimes it is

other times after 12-16 hour days you miss your kids/wife

[pale flare]

that sounds extensive

[obsidian moon]

and you get really tired of leadership meetings and scrum sprints

[pale flare]

but good money probably

oh god ive heard about meetings before

my dad always jokes that they have meetings about meetings

[obsidian moon]

its not a lie

[pale flare]

lmfao thats ridiculous

[obsidian moon]

I've walked into meetings where the first thing said is "we aren't here to solve probems"

and the engineer in me wants to scream

[trim matrix]

[pale flare]

btw those are the two main blueprints ive done by myself

[obsidian moon]

well i gtg ... goodluck 🍀

was nice talking with you guys

[trim matrix]

at least they are commented

[pale flare]

thank you

[pale flare]

if they arent it messes with my ocd

[trim matrix]

omg yes you succed in blueprint programming

ocd is key

[signal hornet]

Anyone able to assist? I've made a player attack knockback BP that works off a Trigger Box that I've added to the player controller ("AttackBox"), which uses an 'Is Overlapping Component'.. and at the moment if the a player enters another players Trigger Box and left clicks they punch / knocks them back but the end vector is all wrong. I'm not sure how to setup a knockback so the the attacking player hits the other player backwards correctly and not in a random direction. I've had someone suggest linetracing but I'm not sure how to do that. Any help much appreciated!

[surreal peak]

You can't just drag pins of random nodes :D

The HitNormal of the EventHit is only set when EventHit calls. Since you aren't using its exec pin, this is not given

And why are you trying to Launch 3 different characters via the GetPlayerChatacter node? Is this a split screen game? Even then the 3 Characters will always be the same, potentially the player who executes the attack

Your attack should determine the Character it hit. Idk how your attack is supposed to work but most of the time anything attack wise is some sort of Animation Montage. And that either moves the character (RootMotion) or has some AnimNotify(State) to enable some collision or trace for a target.

Or maybe you have a system already that determines a target.

The Hit Event you are using is a physical hit, so when someone walks into someone else. You can't just use it from a button input.

The simplest way to make this work is to use some sort of Trace when you press attack. And using the HitResult of that to Launch the HitActor that the Trace returns.
Direction of the launch can be (HitActor.Location - Self.Location).Normalize

Also with the amount of basics you are lacking I highly suggest against working on a multiplayer project. :X you will just burn out on this

But that's up to you of course

[signal hornet]

Most of my project is finished, I have just been following tutorials and learning along the way. I know I'm still a noob but all I need is to fix this knockback function and and I'll have a working multiplayer game.

[echo salmon]

i need to ask you something if u can help me out
I got a BP_Platform , which inside i created a transform variable (made it editable , and enabled the 3D Widget ) as you can see from the picture
Inside the Level i move the Obstacle position as you can see from the screenshot so i can get its location and spawn something there
How can i get its location thought ?

[unborn compass]

this doesn't work anymore for me i have no idea why lol

[surreal peak]

Visibility is a State. You should not use RPCs for State

Use an OnRep Boolean

[surreal peak]

The Transform itself is the location? Transform has Location, Rotation and Scale in it,.

Moving that 3D Widget modifies the variable itself

[unborn compass]

sorry i'm really dumb could you explain this a bit more?

make it repnotify?

[echo salmon]

@surreal peak When i move it in the world it has different values than in the BP . I wantt to get its world location

[gentle urchin]

yes

Make a bool that is repnotify,

and on the event call toggle its visibility

[unborn compass]

in the pawn or the controller? the widget is a component on the pawn

[surreal peak]

Yes

[surreal peak]

ObstaclePosition + GetActorLocation

(: It's a relative location

[surreal peak]

Pawn

[wicked crag]

Thank you this is all really helpful

[tribal saddle]

Hey all! Trying to Spawn an actor through a widget but all actors are spawning at spawn 1 out of many. (All Spawning at Index 0)

Any help would be great! Thank you all!

[maiden wadi]

What is the actor you're trying to spawn supposed to be used for?

[tribal saddle]

Structures. Interacting with the object brings up a widget to choose a structure to construct at that location.

[knotty wraith]

https://cdn.discordapp.com/attachments/906242236684058677/949941983844110387/unknown.png hey guys, why suicide doesnt works who knows?

I used blueprint 'Apply DMG" and wanted to do it on "self"

[maiden wadi]

Not sure. Would have to see logic to take a guess at it.

[maiden wadi]

From the look of this, you've called this on a client. At least I'm assuming that based on that ServerRPC in the middle of this line. Damage should be applied on server.

[knotty wraith]

@maiden wadihm, sounds true, but i can't understand logic, i tried to use in with initiliaze hud widget, widget works fine timer works fine and i wanted to make suicide in the same event graph of base game mode

and i thought it would work, but now i guess it's no, so how i can fix this? "self" doesnt works in this even graph, he tell me "it need connection"

and i tried to connect it with "bp base player controller"

because i want to make my player suicide randomly from server list , for example 6 from 24 will die when game begins

widget also dissapear "remove widget" works, but after dat, nothing works 😭

[maiden wadi]

I'm also more confused about this now that I've realized you're trying to make this in the GameMode. This is intended to be multiplayer, right?

[knotty wraith]

yes

[maiden wadi]

Kay. GameMode should have zero interaction with Widgets. It exists only on server, and will be null on clients.

[knotty wraith]

hm sounds true, but widget is works idk why ;0 when i put it in base game mode, it's "initiluaze hud"

simple blueprint to open timer in the game and makes 2seconds before match starts

[maiden wadi]

Is this for getting out of stuck spots sort of suicide, or?

[maiden wadi]

GetAllActorsOfClass is your issue here. The widget displaying this needs a reference to your plot that you're getting Transform from. PlotWidget should probably be Self. How do you show the PlotWidget? Is that a widget in a WidgetComponent on the actor itself?

[knotty wraith]

did u play cs go zombie?

it's for "when match begins, every players join survivals, and few random of them is gonna die" , when ppl die they turn to zombie team, dat's i already made

but i am stucked at suicide 😭 timer works fine but suicide doesnt works

[tribal saddle]

If I change the index to 1 from the "get" array it spawns the structure at the next spawn point. I'm guessing I need to tell the BP what index i'm interacting with?

[maiden wadi]

Not quite. Is this a widget inside of a widget component?

[tribal saddle]

The BP I posted is inside a widget component.

[maiden wadi]

Right click your Get node's outpot, and promote that to a variable. Name it OwningPlot or something similar. Then go to your plot BP where the widget component is and get a reference to it, call GetUserWidgetObject->CastToWidgetPlots->SetOwningPlot

And actually I'd also recommend moving this spawning and widget hiding logic to the plot itself and have the widget simple ask it to do it.

[tribal saddle]

Not seeing GetUserWidgetObject as an option.

[maiden wadi]

In your plot actor, do this. Beginplay sets your widget's pointer to the plot. Then have a function that does your spawning.

Then in your widget's button click you can just call that with a class input.

[quasi forge]

How to remove grass under this plane?

[trim matrix]

Hi everyone.. i need some tips.. i have a forLoop inside a forLoopWithBreak. And i want the loop nested to break the main loop, except once it's completed. do you have any idea how to do that? i tried to use a branch but didnt work

[tribal saddle]

Blueprint Runtime Error: "Accessed None trying to read property OwningPlot". Blueprint: Widget_Plots Function: Execute Ubergraph Widget Plots Graph: EventGraph Node: Spawn Building for Plot

[knotty wraith]

btw if u tell me , it's server, not client, so where should i put this node? in base character? but it will kills me all the time ;D i need it only once

like once suicide in beggining of the game and no more, i made initualize hud for a new players

[jovial scarab]

hello, with this blueprint I can move in the x axis. why can't I do the same with the z axis? how would i solve this?

[jovial scarab]

Yes its a character

I tried it But it didnt work

[foggy escarp]

If this is a standard third or first person character you would first want to start with a new character movement component.

[maiden wadi]

What did you do on BeginPlay in the plot actor?

[jovial scarab]

Okay thank u very much i will try it again

[knotty wraith]

Guys could u help me plz, do u have any of examples how to make suicide blueprints? I would be appreciate it so much >_<

Tried to google it , didnt find anything

[trim matrix]

Any ideas guyz?

[jovial scarab]

Yes I will do that
ty

[maiden wadi]

That is really odd. Are you still removing the widget from parent or something? It shouldn't lose that reference.

[gentle nebula]

Is there a shortcut to find the selected variable/macro/function/event dispatcher in the myblueprint list?

[sharp rapids]

connect from the Completed of the nested loop to Break of the main loop?

[trim matrix]

trying!

[trim matrix]

actually it has to be the opposite... once the nested Loop is completed, the main Loop needs to start Looping again...

that's where i struggle

[sharp rapids]

do you mean, Run the nested loop in every cycle of the Main Loop?

[trim matrix]

yes exactly

[earnest tangle]

been a while since I saw anyone spell guys with a z lol

[sharp rapids]

That is the default behaviour, you don't need to do anything

[trim matrix]

hmm, i see.. the pb is it do it so fast that i can't see all the steps and i need to see them

in the nestedLoops i'm moving stuff around, then the main loop change colors, etc...

right now the main loop loop so quickly i can't see the change of colors for each time it loops

[tawdry surge]

Run your loop off a timeline update and lerp the position and color values on each object into place over time.
But definitely better done in c++

[trim matrix]

thanks! but not sure i have enought skills to do that

my question i guess would be more.. how to resume a loop that has been break?

[gentle urchin]

Custom forloop

Not sure if this qualifies as being on a break, but thats what you gotta do if so

[trim matrix]

hi @gentle urchin so i need to create my custom forloop right?

[gentle urchin]

Yeah

[trim matrix]

damn ok.. trying then

[gentle urchin]

Copy a regular forloop

But instead of the sequence ,

Map it as another input pin

So you externally must continue the loop

[icy dragon]

Worth mentioning that blueprint loops are just regular BP macros, not C++ functions

[trim matrix]

ok! sounds good, trying

[woeful dawn]

https://www.youtube.com/watch?v=0lok-YK2mvw 12:38. i was wondering if anyone has any idea on how to make this enemy charge mechanic using ai behviour tree. I'm currently struggling on how to get the enemy to charge towards the player as a "move to" would be too slow.

if anyone could help that would be cool :))

[earnest tangle]

Increase movement speed when you trigger the charge

[woeful dawn]

I'm litteraly face palming right now xD

Thanks :))

[earnest tangle]

heh

[maiden wadi]

I also recommend using AddMovementInput for the AI instead of a MoveTo. At least for me it was much easier to make a charging ability that way. Finer control on it.

[woeful dawn]

Thanks so much :))

[gentle urchin]

Does a datatable work as any other asset in terms of being loaded in memory when referenced, or do they somehow always stay loaded anyways ?

I assume it works as any other object / actor ref..

[maiden wadi]

Prior. They won't be loaded unless referenced.

[knotty wraith]

Guys could u help me plz, do u have any of examples how to make suicide blueprints? I would be appreciate it so much >_<
Tried to google it , didnt find anything

[trim matrix]

that worked! thanks!!

@gentle urchin is saving the day!

as usual 😉

[gentle urchin]

Thanks ! Figured i'd move all my npc data to a db and just load it in the widget when needed instead of having it internally in each npc .. micro optimization i guess 😅

[gentle urchin]

Sweet !well done

[icy dragon]

Don't make the blueprints suicide :(

[jovial scarab]

it works now but I always fly a little further although I no longer press the button. can I change this?

[quaint trail]

Is there a common strategy to deal with this error in the material nodes? Currently it seems to amount to 130k characters.
fatal error: Too long source line

I did create a material function, but didn't help.

[maiden wadi]

Yeah. I wouldn't worry so much about static data being loaded always. I store mine in a DataAsset in GameInstance. Thousands of simple data structs won't touch your memory. Only real consideration needs to be any class or object ptrs that should be soft refs.

[knotty wraith]

doesnt works (

[frail meadow]

do you want the actor to be destroyed?

or just respawn

[knotty wraith]

just respawn

like he died and he started again

[frail meadow]

do you have a health system?

[knotty wraith]

yes

HP

[frail meadow]

does it respawn the player when it's dead?

[knotty wraith]

yes, but idk how to make a systems in base mod

thats will makes minus health and deal for examplt 500 damage

or -500 health for suicide

i kinda stucked

[frail meadow]

i'm confused

[knotty wraith]

i thought i can do aplly damage for

suicide

https://cdn.discordapp.com/attachments/906242236684058677/949941983844110387/unknown.png

but it doesnt works

target "bp player controller"

[jovial scarab]

thankk youu now it works without flying mode

[crimson jolt]

I was under the impression that it is always possible to access component variables that appear in the details window from blueprint calls, but I'm having trouble accessing several variables from the Control Rig component's details window in the blueprint graph.

Am I missing some obvious setting to be able to see them or are they simply hidden for some reason?

[maiden wadi]

Depends. Some variables are not accessible from BP and only marked as EditDefaultOnly or EditInstanceOnly.

Edit markers allow you to change settings in details panel, but you won't be able to get or set the variable in a blueprint graph.

What variables are you after?

[crimson jolt]

Mainly the "Control Rig Class" and "Show Debug Drawing". I see no reason why these shouldn't be runtime modifiable, especially show debug drawing. In fact, it seems like pretty much all the control rig component specific options are inaccessible. Is it just me? It seems strange

[jovial scarab]

does anyone know how this works in the unreal engine? I can't find a tutorial for something like this
https://www.youtube.com/watch?v=3_CX-KtsDic&ab_channel=AlexanderZotov

[maiden wadi]

Not sure why on either of those. May just be a lazy thing. The component is still in the experimental folders, and some of this code does look a little "lets just throw this together to make sure it works". This could change down the line. Possible you could subclass it and make setter functions if you wanted and are C++ capable.

[clever vapor]

Is there any performance gain for turning off component tick in all components an actor? Why is it enabled in the first place? If I disable actor tick do the components still tick if enabled?

[crimson jolt]

Ah I see, well thanks for checking it out for me. This functionality is not really critical to my project so I'll just leave it as is for now. I do have some C++ experience (not in UE though), so maybe I'll see if I can get it working at a later stage.

[crimson jolt]

I watched a live-stream where they talked about this, if I remember correctly the advice was essentially "turn off component tick unless the component needs to tick" (as in, you're using tick in the component). For a lot of things you don't actually need tick, it may be sufficient to use a timer. The reason it's on by default is to make blueprint more accessible to new users, so that you can just get straight to scripting without worrying about performance optimization.

[clever vapor]

yeah normally people just use actor tick though, i've never seen someone use a component tick like let's say a box collision or static mesh, not concerned about actor tick. So you think just turn it off even if you turn off actor tick?

pretty much everything you add into an actor as a component has its tick enabled lol so do you have to go disable tick on actor level + every single component?

[past girder]

Hello once again. I'm attempting to smoothly rotate the camera between the Main Menu and the Garage. It works the first time, but when I try to return to the Garage the second time, it no longer works. The code is most likely a little messed up.
I would appreciate any assistance!

[keen shard]

first thing you could learn is whats in this tutorial. https://www.youtube.com/watch?v=P9xXMS8EoW4
then it should be much more clear how to do the thing in the tutorial you posted

[crimson jolt]

I actually haven't tested if turning off actor tick also disables component tick for all of its component, but I wouldn't think it does. But if the component you're adding has tick enabled by default, it probably needs to tick to function properly, so I wouldn't turn that off

[clever vapor]

i would think that as well but i disabled component tick on a box collision and it still works lol

[maiden wadi]

Realistically I don't think you're going to notice a ton by just disabling tick. Maybe some if you literally have millions of components active in your levels. But a lot of the tick issue is simply designers don't usually program well and a lot of larger projects disable their blueprint ticks to avoid designers having access to it.

[keen shard]

actually this one is better. https://www.youtube.com/watch?v=P9xXMS8EoW4
what you're doing is basically getting a "touch start" event. then tracking the movement of that touch on tick. and applying that movement to your 3d object.

[crimson jolt]

Huh well... then you're probably not gaining much from turning it off either xD I would just leave the tick bool at its default value for all the standard components. If you're making your own component you may want to consider if it really needs to tick tho

[clever vapor]

if i have 100 ticks queued (using stat game), how can i drill into it effectively what is being queued, trying to understand cause of this in my project. I know there is unreal insights and I've used that before but not sure where in there to look

[jovial scarab]

okay thank you but its the same link

[keen shard]

I edited the last message with the same one. didn't wanna lead you down the wrong path

[keen shard]

the other one just showed you how to use the built in touch stick controls.

[jovial scarab]

oh ok thanks

[last abyss]

you're accessing none off of the 1st branch in your tick when you've removed main menu from parent after you 'setrotationcamg', and since you're accessing none on tick I think it stalls the program.. you could go about fixing this but it looks very messy i would suggest trying to simplify your code by not using booleans and tick event that checks those booleans, also would recommend not using level blueprint for this. instead, you should do the coding for this in your widget's blueprint.

[last abyss]

personally I would go about it in this way:
in the main menu widget blueprint -> on click of the garage button -> get actor of class 'camera' (this should get the camera unless there is multiple cameras in the level) -> make a timeline for your rotation -> off the finished of that timeline, create your garage widget -> add to viewport -> then set the visibility of your main menu widget to hidden (or remove from parent, either way works). vice versa for your garage widget

[past girder]

Timelines don't work in widgets?

[dawn gazelle]

You can't add timelines to widgets.

[last abyss]

well that sucks, then you can use a custom playercontroller class

[past girder]

I use the level blueprint since I can't put a timeline node in widgets. If I could achieve that, I wouldn't require bools or event ticks.

Thanks for the help anyway

[maiden wadi]

@clever vapor Decided to run a few tests. 😄 Turns out I was a little mistaken. Even empty component ticks do take a bit of a toll.

[keen shard]

is there any obvious reason why left doesn't work in setting this custom parent variable, and right does?

[clever vapor]

Haha cool 🙂 I searched in discord and sounded like you researched same thing i am doing which is game stat + unreal insights? do you have any tips drilling into the world tick time/event tick time and tick queued things?

[maiden wadi]

Admittedly this test is a little skewed, I need to test a few more things, but I did a simple test spawning 50k components on three actors. Totals a little over 150,000 component ticks, all empty, no blueprint at all, pure C++ classes.

Top is 150,000 component ticks, bottom is 15,000 ticks.

For relevance, this is the 150,000 components with tick disabled.

[dawn gazelle]

🤔

[clever vapor]

so the ticks disabled on component did help?

[dawn gazelle]

Big time, so long as they don't need to tick.

[maiden wadi]

Significantly. 150,000 with tick enabled was running at 11 fps for me. Without them ticking and still existing I was setting at the editor cap of 120fps

[clever vapor]

did you try disabling at the actor level

without disabling per component

[maiden wadi]

No affect on the components.

As in components still seem to tick.

[clever vapor]

i know it doesnt disable per component but did you see same perf gain?

ah ok

cool test 🙂

it's hard for me to tell, i have around 100 ticks queued but i didn't see much of a gain but im sure if you do enough components it must

but i'm sure it just helps if it's not effecting anything anyway

[gentle urchin]

Thats about all of them currently 🤣 fixing it now tho.

[maiden wadi]

It's worth noting that 100 ticks probably won't see a difference. Still getting at 70fps at 15,000 components I wouldn't start stressing over that number until it's closer to 1k.

[gentle urchin]

Even then it sounds like manually calling a tick-like function from native tick in some manager has performance gains

[maiden wadi]

Default spectator shouldn't have a walk speed? It utilizes a FloatingPawnMovmentComponent. Should be able to change MaxSpeed and Acceleration.

Also on a side note, people are apparently wrong about the greyed out part of nodes. Disabled tick nodes do not count towards ticking.

[tawdry surge]

Doesn't it say that in the lil comment

[trim matrix]

guys do you know if it is possible to spawn/generate staticMeshComponent in a BP, and have the Physics enable on them

[maiden wadi]

It does, but some people are convinced that it doesn't work.

ALSO YOU CAN CONVERT EVENT TICK TO A FUNCTION OMG 😄

Easy early returns, gg. That'll clear up some functions in the future.

[gentle urchin]

Also

With nothing connected

It doesnt override parent !

This was a big surprise to me

[hazy igloo]

Hiho. What does the screenshot mean?
Did it save my variables in my savegame automatically? How can I use it with BPs?

I mean the SaveGame flag

[gentle urchin]

Afaik theres no logic for automatically saving variables, but I've never checked the saveflag specifically either..

[maiden wadi]

Okay.. Now I have serious questions. What the shit? Events are more costly than functions? O.o

Ticking 150,000 actors with a blank EventTick in graph is running me at a consistent 3.31fps. Literally doing nothing but changing that to a function jumps it to 4.37fps

[gentle urchin]

Probably pure editor thing?

Try in standalone

[clever vapor]

theyved mentioned before in a 6 year old live stream that events/macros and certain aspects of blueprints can be slower, thats why isnt blueprint nativization important?>

[hazy igloo]

I have found this link: https://sudonull.com/post/74524-Saving-and-loading-a-game-in-Unreal-Engine
But can I use it with BP too?

[maiden wadi]

Same effect slightly less discrepency. Function running at 4.91fps Event runs at 4.29fps

[gentle urchin]

Facinating.

[maiden wadi]

Generally speaking, I wouldn't rely on nativization. There's been talk that it's been deprecated, unsure if it's true. But writing C++ is exceptionally easy in Unreal to the point that if you're having performance issues it won't take long to drop that into a C++ base

[gentle urchin]

I wonder if this is true for native tick / event / function aswell....

[clever vapor]

i thought wasnt the bigger issue that blueprints are in their own vm so its costly going from the blueprint vm to c++ native and vice versa?

[gentle urchin]

In my experience its extremely cheap 🤷‍♂️

[maiden wadi]

Probably not. NativeTick technically is a function. If I had to hazard a guess, it has something to do with accessing the blueprint graph versus accessing a function. Graph calls may incur an extra check or something somewhere.

[clever vapor]

they explain all this but its like 6 years ago... so idk lol but the engine developers mentioned it

[gentle urchin]

Yeah probably true

[clever vapor]

https://www.youtube.com/watch?v=RwbkvUEgCls&t=120s

[gentle urchin]

Even if it is as you say, you generally would do the heavy lifting in c++, and just the simpler stuff in bp.. cosmetics and whatnot..

[clever vapor]

it's not what about I say, it's what the unreal engine team has said in past 🙂

[gentle urchin]

Assuming you know your way around c++ ofc

[clever vapor]

yeah i could look into c++ just think it's important to understand what other overhead there is

[maiden wadi]

Blueprints make accessing the engine much easier and they also make latent calls incredibly easier. Which is why I tend to do much of my widget creation and actor creation in blueprints. Much easier to handle soft refs in a lot of cases with async loading. But if I'm writing a heavy widget animation? That thing is getting a C++ subclass and I'm dropping it into code.

[gentle urchin]

Definetly a good point

[clever vapor]

https://youtu.be/RwbkvUEgCls?t=2862 ok here's the timeclip Nick Whiting, Lead Programmer at the time comments on the BP VM, he talks about the overhead i'm talking about

they need to do another one of these lol thats almost 7 years old now

[past girder]

The Level blueprint contains a custom event, can I call the event from a widget?

[gentle urchin]

Yeha this sounds a lot like the inlining in c++ really

When the functions are small enough, the basic overhead is bigger than the actual function call

Which makes sense

Id also expect it to increase by the amount of pins plugged into the node etc

[winter horizon]

Hey, today I just wanted to learn a bit more about BlueprintPure and BlueprintCallable and discovered some behaviours I can't really understand for what they are good for, of find examples that would clarify their usecase.
In the picture you can see the C++ declaration and how they Nodes are represented later in Blueprint.
In general: BlueprintCallable is for calling a function inside Blueprint and BlueprintPure does the same BUT expect a result (void Function(Type& returnValue); or Type Function();.
It says BlueprintPure "does not affect the owning object in any way" a bit like const, but when testing it, BlueprintPure would let me change class properties.
So some questions:
1: Why can I affect the owning object by a BlueprintPure function? (In my Testing I just changed a float flagged as UPROPERTY(VisibleAnywhere))
2: By making the BlueprintPure function const I could ensure that nothing can be changed, but will effectively make it equal to a BlueprintCallable const function. Right?
3: When do you use Option 1 or Option 2? Is it just a visual preference or does it really have an effect on functionality?
(Hope the "blueprint" channel is the right one for this question ^^)

[maiden wadi]

That is a major misconception. Pure != Const. All Pure means is that any connection to the output on this node will run it. So if two things use the pure function it'll get ran two times. BlueprintCallable on the other hand runs only when it's execution input is ran and then the output can be used multiple times even though the function is ran only once.

Generally speaking, your pure nodes should be const. There's almost never a reason to alter an object when it's being used in a pure node.

[gentle urchin]

As i see it pure is more of a promise not to alter anything

The fact that it doesnt cache the output is , as i see it, not a fault of the pure node

Its not like its cached in c++ either

Its just a perk of the copy-mania that is bp when using a callable

[maiden wadi]

That is the reason why any node where I write a heavy filter or output an Array is why it gets marked BlueprintCallable, BlueprintPure=false

[gentle urchin]

Yeah its a few extra steps if you wanna cache a pure node like that ^^

[winter horizon]

Ok, so BlueprintPure functions will run multiple times for each time their output is used. Example the output goes inside 3 Print functions, the function gets called 3 times. Would it be a BlueprintCallable it would be called only once, right? So if it is a blue Node, it is cached, if it is green Node, it is not cached.

[dusk ember]

anyone know how to set an item in a struc array?

[gentle urchin]

Exactly

If you want it to be called once youd need to make several outputs a struct, and in turn save that in a variable...

[gentle urchin]

Get struct by ref -> set member in struct

[winter horizon]

Nice! Ok that is actually an answer that clarifies my questions, thanks! And their are just some redundant ways to display this as Nodes (like if you really want Target(self) to be displayed or not)

[gentle urchin]

Target is always relative to the owner of the function , is it not

[maiden wadi]

Depends. You usually use the WorldContext meta specifier to hide it if it's in a BP library. Other than that I've never personally messed with the target pins.

[dusk ember]

it gets the value and changes it but then it when i repeat it, it doesnt change the changed value

it changes the original value

[gentle urchin]

Sounds like u dont have the struct by ref

Using foreachloop is by copy

[dusk ember]

i couldnt get it

[winter horizon]

Right, I meant it that way, so for example: a getter function doesn't really need a Target. So you could just use BlueprintPure without const otherwise Target would be displayed in the Node. BUT you just need to trust that the programmer really didn't affect the owning object. To be safe you would need const. That was what I meant with "redundant ways". It is not the same but if you keep the promise as programmer I look simpler without the Target.

[gentle urchin]

You mean const function or const i/o?

[maiden wadi]

This conversation is making me realize how little I care about the target pin. 😄

[gentle urchin]

Show some code

[winter horizon]

😄 I know it doesn't really matter but I was a little bit confused seeing the different "visual" options you have for your Nodes and was wondering if they have all a real functional usecase or just their to look nicer ^^

[gentle urchin]

If you try using the get directly instead, does that work?

[winter horizon]

I was referring to those two:

UFUNCTION(BlueprintPure, Category = Testing)
void PureConstTest(FString& outputValue) const;

UFUNCTION(BlueprintPure, Category = Testing)
void PureTest(FString& outputValue);``` 
Sure their are not the same, but if you keep your promise, for simple functions I would use the second option just to don't confuse the user.

[gentle urchin]

Right, a const function ! ^^ I always use the latter tbh. And just stick with the promise not to alter any state in the owner

[winter horizon]

Ok, thanks again for your help, I don't know if I would have found an answer that quickly if I would have searched for it any longer in the internet ^^

[dusk ember]

i'm 99% sure it worked, tysm!

[gentle urchin]

So you were victim of bp's copying of variables, as we talked about 20 comments ago 🤣 glad it worked

[dusk ember]

lmao

[maiden wadi]

Honestly, I'd consider the first option. Designers who use BP sometimes don't care about const or not. They just know a node does something. But those functions can also be read by other programmers, and used in C++ where const does matter.

[gentle urchin]

Const surely makes it less prone to mistakes

[dusk ember]

an issue i'm having is that when i change the index in game, it throws out tons of errors and doesnt work

[maiden wadi]

There are also several useful places you cannot use non const functions. I use OnPaint in UUserWidget a lot, it's forced const. Just easier to use things in places correctly. You can always use a const function in a non const area to get something, you can't use a non const function in a const function.

[gentle urchin]

Its not clear to me what qualifies as a const function tho

[dusk ember]

fixed the issue

tbh idk why it was happening but it works now

[maiden wadi]

Pretty much anything that does not alter an object's state should be a const function.

For example. Getting an array of something and sorting it and returning a new array should be const. You're not sorting the original array or messing with it but returning a sorted copy. Stuff like blueprint library object getters should be const as they're just getters. Pretty much any information getter usually qualifies as const.

[gentle urchin]

Right, I think i just got it mixed up with pre vs suffix const

[maiden wadi]

As in these?

ASomeActorType* GetActorTypeThing() const;

[gentle urchin]

Yepp

[maiden wadi]

Yeah, second is a const function which implies the function itself isn't going to alter anything's state. The second returns a const pointer, which means that you cannot use that pointer to alter the object it's pointing at's state.

[prisma sedge]

i am making a top down movement system with sprites. I am trying to get the flipbook animation to change with the direction that the player is moving. The first set of blueprints to the left changes the players animation based off of the x axis and the second is changing in on the y. How would i combine the two so that if the player moves in the x the first blueprint plays, and if the player moves in the x the second one plays?

[maiden wadi]

Unsure if I'm understanding correctly, but it sounds like you're looking to get the X and Y of the velocity of the character and find whether X or Y is larger.

[prisma sedge]

@maiden wadi i fogot to put the picture

it is not connected yet to the branch

[maiden wadi]

If abs of X is greater than abs of Y, character is moving more in X direction, negative or positive doesn't matter for that check. Once you know that, you check if it's negative or positive for that axis. Return the correct object. C++ code says that does nothing if you pass the same one in as it's already using, so no need to check if it's the same one.

[gentle urchin]

"Of course one sometimes needs to combine some of these different uses of ‘const’ which can get confusing as in

const intconst Method3(const intconst&)const;

where the 5 uses ‘const’ respectively mean that the variable pointed to by the returned pointer & the returned pointer itself won’t be alterable and that the method does not alter the variable pointed to by the given pointer, the given pointer itself & the object of which it is a method!.
"

Reply to wrong comment 😅

Was to our earlier talk

[maiden wadi]

What the shit is that function?

[gentle urchin]

Confusion in writing 😅

As to why i find it confusing 😂

[maiden wadi]

Oh, it messed with me cause the pointer notation is missing. 😄 I don't think you can have a const int const. It needs to be a const int* const

[gentle urchin]

http://duramecho.com/ComputerInformation/WhyHowCppConst.html the source of this, if interested

[gaunt fractal]

Got a problem with trying to move a spring arm.

I tried just setting the rotation, this worked, ish, but got funky issues that I attributed to having pitching and yawing combined. So I dropped it and tried to go for a "AddControllerPitch/YawInput" but it has not been working. At all.

I will screenshot everything I feel is relevent

[maiden wadi]

I can't connect with any of that. 😄 The style is so different from UE4 programming and they kinda comes off like someone who's never had to work in a team as a team player. Const in UE4 is simple because usually you only mark pointers, or functions const. You also pass larger structs into functions by ref as const as well if you're not changing them.

[maiden wadi]

Where is this being called from?

[gentle urchin]

Fair enough^^ i should prob mark up my functions as consts on the next review !

[maiden wadi]

I don't feel you will run into the kind of issues that person is complaining about. Function constness will not ruin anything because you only mark functions that are getters anyhow. They're not intended to change anything so it should never be an issue. And once you get to the point that you're using const pointers to things, you understand why they're const and why they shouldn't be changed.

[maiden wadi]

Does this work at all if you remove the first two checks?

[gaunt fractal]

Nope

[maiden wadi]

Also what class is this in?

[gaunt fractal]

I started with the topdown template. This is being set from the TopDownController and should be applied to the TopDownCharacter

[maiden wadi]

I have a vague memory that you can't do this from the controller and I don't remember why. I'd consider moving this to the character itself anyhow. Having character specific control in the controller isn't good.

[gaunt fractal]

I started from here, as this is where the movement controls were

[maiden wadi]

Yeah.. I have no idea why they put default examples like that. But pawn specific controls should always be in the pawn. Part of it is organization. The character's class should know what affects it. This is more true if you have a game where you can possess multiple different pawn types, like a character, then a car, then an air vehicle. Controls vary wildly and you'll end up with a massive branching logic if you do it all in the controller.

[gaunt fractal]

I tried doing it from the main BP too, but that still does not work

[maiden wadi]

Main BP?

[gaunt fractal]

Oh, sorry. The character BP

[maiden wadi]

In that case, control mode is in question. MouseX may be 0.f

[gentle urchin]

Right but even if the person writing it has a clear understanding of it, other programmers may not, or may not follow it as critically , and thus causes the same issue as bp pure would when some designer miss-use it etc

[maiden wadi]

Some control modes only run if your mouse is pressed for instance.

[gaunt fractal]

Ok, it is zeroed out, just confirmed with a print, How/Where do I fix this?

[maiden wadi]

Are you using Input Mode GameAndUI?

[gaunt fractal]

I am not sure where to find this

[maiden wadi]

Given it's topdown, I'd assume so. Been a while since I've messed with templates.

Does your MouseX print anything if you press left mouse down and move the mouse?

[gaunt fractal]

Left was held the whole time, to use my drag/movement

[maiden wadi]

That starter project has some weirdness. Lolol It works if you hold right click but not left click.

Holy shit though. Indicator in the character and movement in the controller. This is a terrible mess and it's only two classes. :/

[gaunt fractal]

...Might be better to restart on a more functional example project?

[gaunt fractal]

I am not that familiar with all the starting from scratch stuff. Would the 3rd person BP work as a better start?

[maiden wadi]

Hmm. Not finding a way around it. Honestly I'd just make your own simple system for it for now.

Shouldn't be that hard, sec.

Do this in the controller.

Then you can access it where ever you need to get how far the mouse moved.

[surreal coyote]

I have a blueprint for my character and a playercontroller bp. I have action mappings that work in the character bp and then there's one that only works in the player controller. I can't figure out why and I really need it to be working in the character bp

[maiden wadi]

Sounds like you have the same input in both and have no unchecked Consume on the one in the controller.

[surreal coyote]

No results found in the controller

[maiden wadi]

Have you used it anywhere else?

By default input will run first in any actors that have had input enabled, then PlayerController, then Level BP, then in any possessed pawn. If anything consumes input before that, the possessed pawn won't do anything.

[surreal coyote]

Gonna check all bp related to the player

[maiden wadi]

Use a FindInBlueprints, much easier.

[surreal coyote]

Only one input action

[maiden wadi]

That is really odd then. Definitely should work if the pawn is possessed by the player controller.

[surreal coyote]

Alright something wrong with my playerstart

Works on another map

[gentle urchin]

If everything in a DB is a bunch of FNames and soft pointers, is there any reason to have the DB itself as a soft pointer ?

Like... it would always be loaded anyways , and it would be as cheap as could be, right ?

[maiden wadi]

Yeah. Depending on size. Most common gameplay tables, there's not really any need for it to be a softptr.

[gentle urchin]

Right, but the only way to get around any issues with its size in the first place would be to divide it up , would it not?

Like.. If you cant handle loading that 32gb smoll db into memory, then you have to handle that differently anyways

[maiden wadi]

Yeah, don't cache line trace data. 😄

[gentle urchin]

😄 daym

Not sure why i worry anyways. This is a small lookup table for static building info

[maiden wadi]

But really. Simpler structs aren't large. you'd be looking at some massive tables before you need to start considering softptrs for them.

[gentle urchin]

Yeah, alright

this is like... max 100 rows

ever

Moving it to the DB in the first place already saved me many times the memory space that this db will take

[true valve]

Anybody knows how to paginate loaded data from data-table? Any docs or articles or ref?

[maiden wadi]

Not really sure what you mean by that?

[maiden wadi]

To put this into better perspective, if you have a struct with an integer, float, FString, SoftClassRef, and then the Table's FName lookup, you would need over 2900 rows of this struct to match a decently compressed non mip 512x512 texture file.

[true valve]

So I've some data in a data-table in UE4. I load them and display them all in a scrollable widget. I want to load 20 at a times on page 1 then page 2 will contain another 20, so on.

The concept is how paginated data table appear on a web application.

[maiden wadi]

Sounds like you just want to get the row names, and for loop over them 20 at a time.

Are your pages separate widgets, or?

[true valve]

I will take the length then divide it by 20 and create buttons at the bottom. [1,2,3,4,5,...]. Clicking on the number will show you the data on the same widget scroll box. IDK how this is handled in UE4.

[runic parrot]

Hi everybody! there's a sequence you can get on UE4 that gives you a random point with a preset distribution, i can't remember the name. does anyone remember?

[maiden wadi]

Personally, I'd just have the buttons pass back a number or self. You can easily get your page entries via PageNum20 then using that as the start of your for loop with that +20 as the end point. First should be 0. So 0 start, and 0+20 end. Second page is 1 so 120=20 to 1*20+20=39 as end.

[true valve]

That might work. Is there any caching mechanism so that I can cache the data. So that If I revisit one of the previous page. It doesn't have to load again.

[maiden wadi]

Not unless you make them all separate pages and load them all at once.

[echo salmon]

I have hidden the mesh , but the its collision is still in the game . How do i remove it ?

[rough cedar]

I'm trying to find the positive and negative distance of my character from another actor. Similar to the problem this guys facing in the link attached. Here's an image from that link that describes exactly what I'm trying to do. I am using "MoveRight" to tell if my character is on the right or left side of another actor. What is the best way to do this? https://forums.unrealengine.com/t/solved-distance-to-positive-and-negative-values/108812

[trim matrix]

guyz, how can i enable physic on an instance object generated from a BP?

[wicked crag]

So I’ve made a behavior tree with a lot of tasks. But when I create a child BP of that character BP all of the behaviors are the same. Can I not create child BP’s if there is a behavior tree?

How do I alter the behaviors for the child? I already changed the mesh and Anim BP but the child just slides across the floor

[jovial charm]

I have a wave system that spawns enemies every round and increases.
I am having trouble with something,
I want to spawn a special enemy every 5 rounds, how do I find without manually entering: if round =5 spawn. If round=10 spawn etc…
I have infinite number of rounds it would take too long, how would I set up a system that automatically says every 5 rounds spawn enemy?
Many thanks

[earnest tangle]

use the modulo operator %

it gives you the remainder from a division operation

so for example, 5 % 5 = 0, 10 % 5 = 0, and so on

[shut hinge]

adding blend layer to landscape not working in engine keeps crashing soon as it tries to create the file.

[true valve]

What's the best way to pass data from parent widget to its children widgets?

[jovial charm]

Uhhh alright, Ill try :)

[jovial charm]

https://gyazo.com/df76be3bcd992c9c6074536dd5891142 like this?

[earnest tangle]

Yep. If you wanted every 5th round, you'd set the second value to 5, and then compare if the result is 0

[jovial charm]

Alright :) ty, sorry if my questions are stupid, and eh.. sorta new.

you compare it with the is equal node?

[earnest tangle]

yep

and yeah no worries, everyone's gotta start from somewhere

[jovial charm]

https://gyazo.com/36fc064e5be99a9ba664a4b013c98660 :)?

[earnest tangle]

You'd want to compare to 0, but otherwise yeah

[jovial charm]

tysm <3

[warm shard]

Hey everybody. Is anyone here knowledgeable in how to transition map levels in VR? 4.27 MacOS for Oculus.

[crystal pebble]

Hey guys, I have some general FPS camera movement programmed, but I want to make it to where the player can only move around when a certain trigger box is hit. How would I go about doing that?

Like, I wanna lock the player in place until the trigger is hit

[tawdry surge]

Disable/enable input to the player from the controller

[mossy mist]

anyone have good character movement component settings for third person?

[quaint trail]

[SM5] /Engine/Generated/Material.ush(2707): fatal error: Too long source line
Is there a way to circumvent this? 13k characters.

[whole coral]

Hello everyone

I'm just wondering how can I open/load levels while the characters in it are not loaded in the viewport

I don't accept the method such as hiding using method of set invisible

But I found if I want the character to be unload, the map/level should not be loaded bc they are loaded together

[pine idol]

So I've added about 10 AI actors with physics to my level. For some reason the forward thrust just KILLS my FPS, and I have no idea why. Anyone have a clue?

Effect is the same whether or not the last function "Enforce Max Speed" is called

[vale pine]

What is a typical use of ChildActorComponent? Nesting actors?

[fiery glen]

can blueprints not call .IsValid() on structs? man

[foggy escarp]

You can make your own macro or function to do it....
Just choose the variable within the structs to do the valid check

[fiery glen]

oh well! we just have a quick C++ function for it

that would work too

weird omission

[naive python]

Is there a way to add a delay or coroutine in blueprint

????

[gentle urchin]

Delay/timer yup

[drifting fjord]

why can my character only die onces?

when he respawns he cant die again

[gentle urchin]

This should be event driven, not called on tick

Tick is called every frame

Also done in the levelbp...

Should be handled bh the pawn itself

The thirdperson character bp

[drifting fjord]

but how do i fix it so i can reset more then once?

[gentle urchin]

By fixing the logic

In your case do once is blocking it from ever happening again

[drifting fjord]

oh

i dragged the end to reset

and it worked

thx for help

[gentle urchin]

Still I'd suggest moving your logic to a betrer suited location , and checking the health only when needed

-> whenever player takes damage

[drifting fjord]

how do i do that

any damadge?

[gentle urchin]

Ye

[drifting fjord]

dosent seem to work when i did that

[gentle urchin]

You gotta move the logic

To the thirdperson character blueprint

[drifting fjord]

still dosent work

wait

lol

[gentle urchin]

No need to cast

And no need for do once

[drifting fjord]

what do i connect them to?

[gentle urchin]

You dont need get character either

Since char is self

So just get the health

And check if its less than or equal to 0

Just like you did before

[gentle urchin]

And not custom event , but even AnyDamage or something like that

[drifting fjord]

but it has no way of connecting to any damaddge

it says not compatible

[prisma snow]

guys , I have a strange issue, when pressing the left shift button and holding it, other keyboard events not working, it is just for the shift button, what's going on here?

[gentle urchin]

How are you finding the dmg event then

It is compatible

Just an event + a few variables

[prisma snow]

when I use left CTRL it working but left shift not working! so left shift + jump not working but left CTRL + jumping working , !!

why left shift button not working when we want to press another keys when we holding left shift?

[gentle urchin]

Show some code

[drifting fjord]

i figured it out thx

[naive python]

Can I know which node is responsible for that

[gentle urchin]

Its simply called Delay

or Timer by event

[fiery glen]

You can even press D and click to get one faster!

and timers are a little bit more complicated

might want to look up an explainer

[untold mist]

Anyone know how to remotely trigger the "on actor begin overlap" event WITHOUT overlapping the actor

[gentle urchin]

For what purpose

sounds like trying to force something to be something its not

[untold mist]

to trigger the event when its binded somewhere else

[gentle urchin]

If you need different behaviour than what it provides, i'd suggest using custom function/event/dispatcher instead

[untold mist]

I know about all that but to avoid over-complicated methods i really just need to trigger the overlap event

[gentle urchin]

over-complicated?

in what sense

[untold mist]

in the sense i have structure arrays containing actor arrays which each contain arrays of reference to blocking volumes im useing as overlap events. the volumes overlap event is binded in a differant actor. I want to check if im in one of those volumes and if so trigger the event i created for when i would have entered it.

really not looking for a work-around just a way to "remotely trigger the "on actor begin overlap" event WITHOUT overlapping the actor"

[maiden wadi]

Just make a function. Make the overlap call it. Then you can call the function from elsewhere.

[untold mist]

the volumes are not in the actor. it has no way of knowing which actor it needs to call

[gentle urchin]

Sounds like a structure that's about to bite you in the behind 😛 You cant trigger an overlap without an overlap

[prisma snow]

Holding left shift + W + jump not working , but if I use Left CTRL instead of left shift it working , anyone dont know why?

[gentle urchin]

what you show us is not related to jumping at all

[prisma snow]

if I use any other keys instead of left shift , it work

[maiden wadi]

Test it in Standalone instead of PIE.

[sharp rapids]

Turn whatever code you have on your 'On Overlap' event into a function, then you can call that function from other places

[prisma snow]

look , I press left shift button and holding with W to sprinting , then when I press jump button it does not work

[untold mist]

again this wont work with my setup. It HAS to trigger the overlap event remotely

[gentle urchin]

rip..

[prisma snow]

not work still

[sharp rapids]

I don't see any difference between both 🤔
You call a function when you trigger an overlap
You can call the same function from other places, So instead of Triggering the overlap which then calls the function, you directly call the function

[gentle urchin]

right, but they are bound to the overlap

the overlap dispatcher

and for some odd reason needs to manually trigger it at some point in time, without there being an actual overlap

which is an... interesting setup to have

[prisma snow]

when holding Left shift button and press W key to running , then want to jump , did not work , but I change left shift button to other keys like CTRL it working perfect

[untold mist]

^

[prisma snow]

why?

[gentle urchin]

Show some code.

[lofty ravine]

can someone help me with my code trying to spawn a dice where ever the pawn is

its just spawning in the playerstart and doesnt move

[gentle urchin]

#multiplayer

replication issues ?

[sharp rapids]

Something like this?

[prisma snow]

this is for third person templete of UE4

[prisma snow]

see

[gentle urchin]

It still dont work with the binding

[sharp rapids]

Well, triggering the overlap without actually having an overlap, isn't it just the same as calling some arbitrary function?

[gentle urchin]

The problem is BP B is trying to listen to BP A's overlap

not actually calling a function in BP A

but Muffin wants to trigger the overlap when binding up to it for some reason

[lofty ravine]

talking to me?

[gentle urchin]

yes

[lofty ravine]

yeah thats what it seems like it tbh

[prisma snow]

I think anyone dont know what is going on with left shift button!!

[untold mist]

algood. found workaround, "set owner" function after binding overlap event. then get owner of volume.

[gentle urchin]

Did you try it in standalone as suggested?

[maiden wadi]

Be careful with that if you're doing multiplayer.

[prisma snow]

yes not work

it work with other keys

you can also test it in you UE4 templete , left shift button not work at all

[gentle urchin]

4.27 ?

[gentle urchin]

Soo a workaround was appropriate afterall : D

[untold mist]

I would still rather have an actual answer lol but we cant have everything.

[gentle urchin]

The answer was "No, you cant trigger an overlap without an overlap"

[gentle urchin]

works on my end

[prisma snow]

yes , problem is for UE4.26 , I tested it in standalone UE4.27 and it works

thanks

but why it does not work in 4.26?

[prisma snow]

did you test it in 4.27? right?

[gentle urchin]

ye

[prisma snow]

so why 4.26 not work?

[gentle urchin]

How in the world would i know xD

[prisma snow]

ok thanks

[gentle urchin]

But let me try 4.26

give me a second

[prisma snow]

ok

waiting

[gentle urchin]

https://tenor.com/view/star-wars-yoda-patience-sw3-gif-21070142

[sharp rapids]

you have two versions installed?
How much space do they take up?

[gentle urchin]

3*

[gentle urchin]

would you look at that, it still works 😛

[sharp rapids]

https://tenor.com/view/pikachu-shocked-face-stunned-pokemon-shocked-not-shocked-omg-gif-24112152

[prisma snow]

really?

[gentle urchin]

yep

[prisma snow]

it does not work for UE4.26 for me , just work for UE4.27

[gentle urchin]

4.26.2, just to be clear

[fiery glen]

binary versions aren't that huge, generally like 30gb without extra stuff

[gentle urchin]

the third is source...

[fiery glen]

nice to keep around in case marketplace assets need them to be downloaded

[gentle urchin]

rip harddrive

4.26 and 4.27, combined

@sharp rapids

[sharp rapids]

https://tenor.com/view/yuge-huge-donald-trump-gif-7357158

[gentle urchin]

would be great if there was some lightweight version that could purely do the conversions

[gentle urchin]

I hope you never plan on having source around....

[sharp rapids]

https://tenor.com/view/umm-confused-blinking-okay-white-guy-blinking-gif-7513882

[scenic flame]

would a first person bhop blueprint 'code' work the same way its meant to but in the third person mode instead?

[whole coral]

Hello guys

could anyone help me

[low birch]

Bhopping isn't tied to camera so yes it should work.

There are different bhops though. Something like Counter Strike bhopping was achieved because of air acceleration. So everytime you jumped and were on your way down your speed increased past your base movement speed.

While Minecraft was just a movement speed increase through editing code.

If you are looking to simulate Counter Strikes surfing then you may find a bit of an issue with smooth movement as surfing required first person camera=>rig control to make smooth turns.

[whole coral]

Why nobody can give me a clue

it's quite a challenging question

[scenic flame]

oh ok thanks

[whole coral]

Hello

Is anybody alive

I'm waiting for help

I have waited for two days

[low birch]

@whole coral please do not spam. If you need help just post your question and if someone is able to assist you then they will. But spamming the channel will most likely result in no one answering. So what's the issue you're having?

[gentle urchin]

https://tenor.com/view/star-wars-yoda-patience-sw3-gif-21070142

And also, dont ask to ask, just ask

[whole coral]

I would like to open/load levels while the characters are not loaded

I know open level

but it directly load all actors/characters

I don't want the characters and their animations to be loaded

it is aimed to reduce memory

The destroy method is not allowed bc I will load it after I press 2

[low birch]

Are you trying to preload a level so you can transition to it later without much loading time?

To be honest I'm not too sure what you are trying to achieve. I may need some more explanation as to what and why you want to do it.

[whole coral]

ok

I explain again

First of all, after press play I will have an empty level

Next I press keyboard 1

the next level shows

but the characters and their animations are not shown

and of course they are not loaded or hidden bc I need to reduce memory

that's what I ask

afterwards I press 2

the characters and their movement/animations are shown

in the vieewport

now I have tried open level/ load stream level

they both failed

[low birch]

Okay. so let me get this straight.

You want to: Load a blank level and when you press a certain input (1, 2, 3, etc) it switches to another level without any characters inside.

So you are trying to cycle levels on the screen. Effectively trying to show a client a selection of levels.

Is that right?

Like a level selector? You don't actually want to play inside those levels you just want to show them on the screen.

[whole coral]

The another level contains the characters but I do not want them to be showed in the first time

I wanna press some key to let them be shown

[whole coral]

yes I dont wanna play inside

I just wanna show them on screen

[low birch]

Mmm. To be honest I'm not entirely sure what your vision is but I would suggest investing sometime into checking out Widgets and looking into a Level selector. Tutorials and docs may only show a small photo of a level you want to display, but you can always change the sizing. That's probably the best direction I can point you in.

[whole coral]

my vision is the entire viewport

[low birch]

Yeah, so you could definitely change the size within a widget to fill the viewport.

[whole coral]

for example, I will use the thirdperson example map

[low birch]

Do you want a camera to move around this viewport or is it static? (Like a photo)

[whole coral]

no

[low birch]

So like a photo/picture yes?

[whole coral]

if I wanna a camera

how to solve the problem

the camera is not a problem for me

[low birch]

Mhm. So what I'm trying to figure out is what you are wanting to do with this level.

What is the purpose? Is it just to look at? Or are you doing something inside of it?

If you just want to look at it and not interact with it then Widget Level Selector.

If you want to do something within it then use the Open Level BP that you mentioned before and change the Player Controls within that map so you cannot control the characters.

[whole coral]

I just wanna see the level

watch it

without playing in it

[gentle urchin]

like cs does it ?

[whole coral]

no

I just wanna watch the level

[fiery glen]

like some kind of preview thing?

[whole coral]

let the characters come in and out

[gentle urchin]

you're explaining this sorta weirdly tbh

got any games that does what you wanna do?

[whole coral]

they are not games

[low birch]

Oh okay. Any examples you can reference for us?

[gentle urchin]

got any reference material that has similar behaviour as you desire?

[whole coral]

I just wanna practice the switch of characters come in and out

[gentle urchin]

To aid you in this, we need some reference to what you want

your description is conflicting....

[low birch]

I may know what you are looking for. Just give me a moment to draw it up.

[whole coral]

I am in a project

[gentle urchin]

^ tells us nothing

[whole coral]

given the characters and their animation

and a new level

[gentle urchin]

if i were to guess it almost sounds like a catwalk thing 😛

[whole coral]

I wanna load the level

[gentle urchin]

or something like Fortnites lobby

when you swap skin

https://youtu.be/5ofMqmVF5Fs?t=67

[low birch]

@whole coral

Whatever blueprint you are using:
[ Input 1 -> Open Level ]

Inside your new level go to the World Settings and change the Player Controller Class so you cannot control the characters.

I believe this is the start of what you want. Within that level you will need to setup a camera for however you want it to be so you can view the level you switched to.

And if you want to switch to a new level then you will have to add that logic in aswell.

But I believe this is what you are looking for, or atleast the very basics of it.

Best of luck my friend. I am a simple man.

[whole coral]

after that

how do I open another level without showing the characters

open level shows everything

you dont even help me anything and just tell me I havent explained clearly

I explain very clearly

I wanna open/load a level while the characters in the new level are not shown

More specifically, the memory taken by the characters are not used

and you just ask for examples, saying it weird

whether I control the characters are not important

you all just skip my question

I have told you I am enrolled in a project

and it is one of the functionalities

I need to fulfill

if anyone can give me useful suggestion, I will pay him/her

just give me paypal link

bc I am a newbie

I just ask for help

but now I found more people here are more unfamiliar

[gentle urchin]

Its hard to help without the proper context or a clear example of the intended result

what does "open level while characters are not shown" mean

[whole coral]

I have told you the exact example

[gentle urchin]

do they exist?

Are they just invisible?

[whole coral]

if you open a level

[gentle urchin]

if you wanna save memory they cant exist

So if you want your logic

[whole coral]

the characters in the new level will be shown

[gentle urchin]

you must not pre-place the characters in the level

you must load them dynamically, when needed

[whole coral]

but I want them to be unshown

[whole coral]

yes

[gentle urchin]

You can use extremely lightweight temporary actors for them instead

which points to the actor to be spawned

with a soft reference

[whole coral]

but how to dynamically load

open level does everything

if I load the scene such as walls

the characters are loaded at the same time

I cannot stop it being loaded

[gentle urchin]

They load because you've placed them in the level

[whole coral]

yes

I know this problem

[gentle urchin]

so the level will load/spawn all pre-placed actors automatically

[whole coral]

so thats what i wanna solve

[gentle urchin]

Instead of placing the Actors you can use placeholders

which basically just need its own transform for the location to spawn, and a soft ref to the actor you want there

Then you also need some logic to handle the spawning at the appropriate time

[whole coral]

how do I know the original position

if I remove

[gentle urchin]

I could suggest making a blutility for it

[whole coral]

the information of position is not known

[gentle urchin]

it is known

ofcourse its known

its pre-placed

[whole coral]

you mean I will remove it before the game starts