blueprint

[hardy fable]

Litterally what its for

[flat coral]

oo interesting, I'll have to check that out

But that said, isn't going to help me with the physmat thing

[hardy fable]

Hmm I remember doing this, but not how. And I'm not at my pc right now or I'd track it down sorry.

Actually I do have an idea

Create a variable of your class in a random blueprint

And try to assign something to it
Then click on create new

[flat coral]

Doesn't seem to be giving me the option

[hardy fable]

Dang it, I was hoping there would be a create new button next to the copy/clear buttons

[gentle urchin]

Did it work? 😄

[mild ibex]

not yet, but it is getting closer, now i can see that it is definitely toggling

[gentle urchin]

But whaa

A sec8nd sequence ?

Should just be the true and false from the "IsA" branch shouldnt it

True would zoom in

And false would zoom out

[mild ibex]

i literally just plugged them in as you said that because it clicked LOL

[gentle urchin]

🤣

[mild ibex]

and yes that does it, only thing is that you kinda have to double tap the input key

which, is fine for now

dis

[gentle urchin]

Double tap to do what

Start zooming?

[pulsar rampart]

Guys i need help i want when the player lose to restart the level he was in but i don't know how can anyone help?

this is what i did but it only restart level 1 i want the same level he lost

[maiden wadi]

GetCurrentLevelName

[pulsar rampart]

then?

or only that

[maiden wadi]

Use it for the level name.

[mild ibex]

sorry, yes, it seems that i need to press the input to toggle either in or out and then it does it when i hold it donw

[gentle urchin]

That doesnt make to much sense to me 😦

[mild ibex]

OHHHHHHHH, i had setup a custom event from testing earlier, thats why you saw the Zooming In print result, but that was also causing it to toggle, i was seeing if an action mapping would work with timers on press and release since i couldnt get the toggle to work

so its not your code it was mine, mbmbm

[pulsar rampart]

just knew it

[gentle urchin]

testing it, this works exactly as expected ^^

[mild ibex]

this was my testing for another method, but unplugging all this makes it work

[gentle urchin]

sweet

[mild ibex]

cant thank you enough for your help

[gentle urchin]

No worries!

[mild ibex]

wouldve taken me a LOT longer to get there myself

[gentle urchin]

My regular work is constantly running on tick, so knowing my way around them comes a long way 😛

https://tenor.com/view/tick-tick-tick-damian-andrew-lego-masters-australia-ticking-gif-16992443

[sturdy garnet]

i just added a spawn thing: when you pass through the invisible wall an enemy will spawn in, it works, the enemy spawns where i want it to but the only issue is the enemy does not move towards you, it can however die so idk what is up. i moved around it to make sure i wasn't out of its view

[tawdry surge]

In the enemy blueprint do you have it set to possess placed and spawned? Class defaults->details panel

[maiden wadi]

Make sure your AI is being spawned with SpawnAIFromClass, or that you are also spawning and setting up an AI controller for it. Also check that your nav mesh is valid and that your AI is not spawning in a null nav zone.

[sturdy garnet]

think thats it just checked and the zone is just out

[maiden wadi]

If the red dot is where it's spawning, then yah it won't work. Need to have the green nav mesh where it currently is so it can calculate where it can move.

[trim matrix]

so, I want all the players to be using the same camera. Right now it's only set to player 1 and i need it for the second person. How would I do it?

pic for reference

the index is only set for player 1 and I want it to be for every player I put in there to use the same camera

[maiden wadi]

Level blueprint's begin play can run before controller is created. The best way I've found to handle this is to set a cameraactor pointer in GameState make it replicated, OnRep set the local controller's view to the camera and also set it on the controller's Beginplay.

[sturdy garnet]

think it's gonna have to be a mix of both the replies lemme see

[trim matrix]

so

I have to have multiple of the same cameras?

[maiden wadi]

The server's level blueprint can get the gamestate and set the camera you want in that level to the pointer in gamestate.

No, just one.

[trim matrix]

hehe, this is a bit hard to understand

my apologies

[maiden wadi]

Wait, is this local multiplayer or networked multiplayer?

[trim matrix]

uhhhh

oh man

[maiden wadi]

Local is on same machine, like console with two controllers and split screen.

[trim matrix]

i know that

but I meant it towards I don't have an answer

lol

I am sorry

[maiden wadi]

Hmm. Either way, I think that the pointer in gamestate would work.

[trim matrix]

I should've came more prepared

[maiden wadi]

I know it works for networked multiplayer and it would have the same affect for local.

[trim matrix]

ok

[sturdy garnet]

yeah had to do both solutions @maiden wadi @tawdry surge ty

[trim matrix]

I appreciate the help

thank you very much

[maiden wadi]

Basically the idea is that you have a pointer in your gamestate to a camera actor. Level blueprint gets the gamestate in it's own beginplay like you posted above, and sets the GameState pointer. You can make the pointer RepNotify and in the OnRep function get get the player array, iterate over it and get all of the player controllers. Check them for IsLocallyControlled, if true, get the playerstate's owner via GetOwner, cast to PlayerController and SetViewTarget. And then also do the same in the Controller's Beginplay by getting that pointer from GameState and if it's valid, set view target, that'll avoid your race conditions and work on any machine configuration, local or otherwise.

[hexed barn]

Hi, can someone redirect me or explain me how I can make a zone where different AI spawn in and a limit (like 5 AI in the zone and if one of the AI die it respawn after 5min)

[flat coral]

Okay I give up, what's the best way to replace an existing Physical Material with one created from a custom subclass of Physical Material?

Ideally I want PM_CarbonFiber to be replaced in all cases with EPM_CarbonFiber

But Replace References doesn't work because they're different types (or so it thinks), and you can't reparent an Asset as far as I can tell

[flat coral]

Here's a cute one... I've got a couple "Accessed None"s from when a cast fails... But it's a checked cast. Why isn't this code resilient to the cast failing, like it's supposed to be?

I bet converting it to an impure cast fixes this but it'll also make my code suck a lil more than it already does

[faint sand]

Having an interface problem related to behavior tree. for some reason the CombatInterface/EventMeleeAttack isnt doing anything even though we can see is being called in the first screenshot.

that debug output indicates its executing MeleeAttack task

which is the first screenshot

in that Task it uses the MeleeAttack interface

which is a Function in the CombatInterface

[flat coral]

Right on both counts...

[maiden wadi]

It isn't a checked cast. That Select node is evaluating both of those cast returns.

Logic order 4 and 5 run to evaluate that bool. But the select node still needs to pull the value for A into the function for it to decide A or B, so A still has to be ran. So 6,7,8 still get ran.

[flat coral]

Shit, I assumed it would lazy eval

[maiden wadi]

You should see my widgets at work. 😄 They're littered with tiny functions returning from checking pointers. Like dropping the pointer and select into a function and resolving it there.

[faint sand]

in a way. i just recreated it from scratch and it worked

[flat coral]

While I got your attention, any thoughts on this? It's still kicking my ass #blueprint message

[trim matrix]

hey, what's the difference between gamestatebase and gamestate?

[faint sand]

so now now i got 3 guys chasing a girl around on my test level

however, im trying to add a jump animation when they get close, except the interface that makes that happen seems broken

[trim matrix]

lmao

thank you

i am reading this one

https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Framework/GameMode/

and all it told me was the differences between gamemode and gamestate

thank you

oooooh

appreciate it

that me?

lol

oh

[flat coral]

Me over here throwing Character in the trash and starting from Pawn to build all my own movement like a crazy person

[trim matrix]

I think I will

I'll leave to default

me no smart

oh

for real?

so if I have something that is a child

I can just transfer it to be a parent BP?

[flat coral]

I mean you can reparent blueprints... I've had mixed results on that, myself 😛

[trim matrix]

oh

[flat coral]

But I mean, I also have a particular talent for finding the most fucked way to do something, so YMMV

[maiden wadi]

Not sure. Never messed with phys materials.

[trim matrix]

I guess I gotta find things my own way but still be efficient

problem with that is that everything is alien to me

so I just follow along tutorials

[flat coral]

I find with tutorials you wanna view it as a box of tools you get to take away from it and learn to use yourself.

[odd ember]

if you follow tutorials verbatim you're in for a bad time

[flat coral]

Tutorials often dont build things the right way, but if you see them use a hammer to hit a nail (metaphorically), that's something you can keep and use yourself when you need a nail to be put into something.

[trim matrix]

but like

how do I go about things myself if I don't know?

[odd ember]

research

[trim matrix]

hmmm

you're right

I'll try

[odd ember]

👍

[trim matrix]

it's just a bit annoying

because Idk anything about programming and just trying to run things my own way I just fail alot

but

that is apart of life

trial and error

[flat coral]

I think like.. go to tutorials when you wanna learn like a specific thing.

[odd ember]

look into object oriented programming, specifically inheritance and polymorphism

80% of your problems can be solved by that

[flat coral]

If you wanna learn the basics of how to create and manage UMG widgets, an inventory system tutorial will be very helpful. But if you copy them step by step and make the whole inventory system that way, odds are pretty high that it'll be dogshit

A turret AI tutorial taught me how to use timelines. There is literally nothing else from that tutorial in my turret.

[trim matrix]

so

like

understand the tutorial that teaches you things

but learn to make it your own way

[odd ember]

understand it through a lens of getting to know a process

[flat coral]

Yeah, it'll have you go through a ton of steps, just like make sure you understand what you're doing in each step, and WHY you're doing it. Dont' just blindly follow a tutorial and use the result

[trim matrix]

alright

I gotchu

like

I understand BP and things

just learning other areas

[odd ember]

but do you really 🤔 does anyone understand BP

... and things

[trim matrix]

lol

I mean

I can try to make things happen

[odd ember]

do that thing with the object oriented programming

I guarantee you it'll be useful

[flat coral]

Seriously any skill I have at blueprints is because I know how to code just in general

[trim matrix]

okie

I will do that object oriented programming

[flat coral]

Blueprints are a programming language. All the same principles apply. Don't let anyone tell you otherwise

[odd ember]

and they just so happen to be object oriented too

what a coincidence 🤔

[trim matrix]

lol

I gotchu

[flat coral]

ya not only are BPs a programming language, but they're actually a pretty standard one. They have far more in common with mainline languages like C++ / Java / C# than some weirdo esoteric language like Prolog does

[odd ember]

never forget that naughty dog uses lisp as a scripting language 😔

[maiden wadi]

Tutorials are made by three kinds of people. People who genuinely want to teach, people who just learned something and want to show it off, and people who want Youtube subscribers. Order from least to most common. Tutorials will never teach you good practice because they're dumbed down to achieve things quickly. Otherwise people lose interest. No one wants to follow a three hour stream to successfully implement a system well when you can spent fifteen minutes hacking it together and get more short attention spanned viewers. This same issue happens in university courses. Getting four years worth of 8+hour days worth of experience into four years worth of school at 2 hours a day just isn't possible.

[trim matrix]

uhhh

wow

you hit it on the mark

I fall into that short attention

wow

am I that bad of a human being

[odd ember]

yes

we all are

😔

[flat coral]

Nothing wrong with it, watch the short tutorial, learn a shitty way to solve it, and then use those same tools to solve it the right way on your own time.

[odd ember]

if I'm looking at a tutorial I will spend about 30 seconds looking for the exact moment they use the node or method I needed to know about before closing the video

[flat coral]

Exactly what I do as well

[maiden wadi]

It wasn't directed at anyone in particular. 😄 It's just a fact that it's the way things work and why tutorials aren't very good. There are so many nuances and topics that literally circle around through other tops and back to themselves. They cannot possibly cram that into such small time, or take care of an audience's different levels of knowledge. So you're pretty much stuck with "If you stick these blocks together like this, it does cool shit."

[peak solstice]

@maiden wadi
I got home and gave your blueprint tut for a try and it works!! 😄
Thank you so much for the help. It actually worked!

[odd ember]

in ancient times as writing was invented it was considered magic

by those who could not read

[peak solstice]

Player closing door and text returns to Open
Player Opening door text turns to Close Doors, and No Open Doors text behind it

[maiden wadi]

Consider making yourself a couple of library functions of that. I use two. Lets me set a widget pointer by ref via another class input if the widget isn't valid, returns a bool. The next will add the widget to a parent or viewport if it's not already parented. Very nice functions for avoiding that kind of branching.

[peak solstice]

I will keep it and I also cleaned and organize my codes.

[pallid axle]

can actor blueprints inherit from character blueprint?

[maiden wadi]

Not sure what you mean by Actor blueprints in this context?

A Character is an Actor. Object>Actor>Pawn>Character

[peak solstice]

My door is an actor for an example.

[pallid axle]

when you create a blueprint I have one of parent actor and one of parent character by I cant inherit from character blueprint

[pallid axle]

oh that's why actors cant inherit from characters because they are child of actors

[peak solstice]

child is part of parent. Child inherits from Parent

[pallid axle]

I know

[peak solstice]

@maiden wadi correct me if I am saying something stupid.
Tobycon needs help in parent and child

[pallid axle]

I already solved problem

[peak solstice]

ok 👍

[pallid axle]

How come I cant inherit in my actor blueprint from my character blueprint ??

[azure mason]

Probably a simple question, but why would my Player Character reference seem to break after the Possess node here?

it's not being explicitly set to a null value anywhere or anything

it gets possessed just fine

but after that the Player Character variable somehow becomes NONE

It even does it here. These Set Active functions execute and work properly but I get "Accessed None" errors for the Player Character variable, even though it works regardless

[azure mason]

They cannot because an Actor and a Pawn (which Characters inherit from) have different inheritance trees

[pallid axle]

so how do I get a variable from my character blueprint

[tawdry surge]

Casting, blueprint interface, or event dispatcher/delegate are the main ways

What variable are you getting and for what purpose?

[sly helm]

Hi guys, I have a question. I have a blend space for going from idle -> walk -> run.

The axis input when I press W goes instantly to 1, and the animation from idle state to the run state is smooth, however if I hit shift (which is what I use to transition into walking), it doesn't go to the walk state smoothly, it's instant. I'm basically just dividing the input axis value by 0.3, which is roughly 1/3 of the normal speed. I've tried playing around with ground friction and braking deceleration but they don't seem to have any effect. What am I doing wrong?

[tawdry surge]

Set max walk speed instead

[chilly geyser]

can anyone explain why this only works for some instances of the blueprint?

[sly helm]

I've tried that as well to the same effect

[tawdry surge]

You could lerp it down I suppose. Feels wrong tho

[sly helm]

Yeah it feels wrong to me as well, I've tried using finterp but it acted pretty jank

[main lake]

Does anyone know how from a simple counter going from 0 to MaxValue (in seconds), I have a game with a day and night system and I need the day to be 10 minutes while nights only 5 min.
So I use a loop with a delay of 1 sec between each incrementation but I don't know how from a single variable called "Timer" counting upward until the MaxValue, I can see if it's day or night to decrease the delay for the night to go faster and be 5 minutes.

Does anyone know the logic to guess when it's day and when it's night from a single value ?

[spark steppe]

first of all you don't have to use a counter for this

you would use the gametime in seconds (the one which is paused on game pause) and modulo divide it by your total length of a day

so gametime % (15 * 60)

[main lake]

I thought about that but as it's a multiplayer game there's no real pausing of the game except at one moment where I need to pause the timer but not the game

[spark steppe]

ah i see

i dunno about a elegant way for multiplayer

also do you have a hard transition between day/night?

e.g. is it either day or night?

[main lake]

Like in the game I have a 24 hours game cycle but I want the night to be shorter (5min) while day being normal (10 minutes)

you mean visually ?

[spark steppe]

yes

[main lake]

I didn't think about that yet but it's not the important as the game happens inside a building

so there will be no sun rotating or stuff like that I think

[spark steppe]

the easiest method is probably to use a curve, but you could also get along with some simple math, like if(time < 5)day() else night()

[pallid axle]

@tawdry surge I'm just getting a variable from a class that casts a ray and stores the hit position vector in a variable and trying to access from another class

so i can position an object

[main lake]

the thing is my timer doesn't go back to 0 that's the problem so for instance if the timer is at 16 it's the day as the night was from 10 to 15, so doing time < 5 won't work here

[brazen merlin]

You should read up on the usage of game mode and game state (since is mp) https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Framework/GameMode/

[spark steppe]

you can still modulo divide on the timer value

that gives you the elapsed minutes/seconds of that day

[main lake]

already did

[brazen merlin]

Then you probably be storing day/night in game state as its not player specific

[main lake]

I tried to use modulo but I don't see what logic to do as for instance doing 9%10 will give 1 but doing 11%10 gives 1 too so I don't see how to do so when it's 11 it understand it's night, and when it's 9 it's the day.

[main lake]

I'm doing this in the gamemode

[tawdry surge]

@pallid axle you wanna use either a dispatcher or an interface, and pass the variable along with the message call

[spark steppe]

9 mod 10 gives 9

[main lake]

oh yeah my bad but the problem stays the same as 1%10 gives 1 and 11%10 gives 1 too even if the first one is the day and the second one is night

[spark steppe]

you combine day and night

[brazen merlin]

The first section of that link explains them quite clearly.

[spark steppe]

the modulo division is to get the elapsed time of the current day

not if it's day or night

that would be the next step

[tawdry surge]

@pallid axle what is the object you wanna send the variable to?

[main lake]

?

[main lake]

then I struggle on the next step then

[spark steppe]

the next step depends on what you want, first day or first night?

[brazen merlin]

Game state literally knows game runtime regardless of players

[spark steppe]

if night first, result <= 5 => night(), else => day()

[main lake]

I don't need that as my game doesn't start immediatly as there's the lobby and other stuff like that, does it count inside the game state runtime ? Or when I open my level it restarts the runtime from the gamestate ?

[main lake]

also like I said I need a modified version of the timer as the night should be only 5 minutes compared to the day being 10 minutes

[spark steppe]

no you dont need a modified version

you need to interpret the data correct 😛

[brazen merlin]

Cant lead a horse to water....

[main lake]

always starting at 6:00 AM so day

[main lake]

Then lead the water to the horse 🤔

[brazen merlin]

I keep trying to tug on the reins

[main lake]

@spark steppe Does the runtime from the gamestate reset when you open a new level ?

Because if it's not the case then it will be messed up as I have a menu lobby and depending how much people stay in the lobby before starting the game it will mess the timer really badly

[spark steppe]

no idea, there's a bunch of different timers within the engine

some maybe affected by level change

the tooltip shows what each timer does represent

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/GameState/GetServerWorldTimeSeconds/

that looks like a place to start

world indicates to me that it would reset on world change

[pallid axle]

@tawdry surge just a sphere which is an actor I think

[spark steppe]

also diversity i got some homework for you

[main lake]

Let's say it resets, then how would you do to guess the day and night ?

[spark steppe]

make an excel/google docs sheet, first row (gametime in minutes) add numbers from 0-100

[main lake]

should I use modulo 5, 10 or 15 ?

[spark steppe]

2nd row add the result of modulo 15 of each number of first row

[main lake]

good idea

[spark steppe]

3rd row, do your own math to figure out time of that day

at some point you will start to realize a pattern

unless you are a donkey and not a horse

😄

[main lake]

I started doing that on paper but was painfull, but forgot about excel so really good idea

I'm not the horse neither the donkey, I'm the water

[spark steppe]

i can't teach you math, i can only show you the way

https://tenor.com/view/do-you-know-the-way-ugandan-knuckles-gif-10737833

[main lake]

https://tenor.com/view/yoda-8ball-fortune-gif-23103658

[spark steppe]

https://tenor.com/view/bruce-lee-be-water-my-friend-gif-10055468

[pallid axle]

https://tenor.com/view/michael-jackson-dance-crotch-dance-gif-13029219

[desert flame]

Is there any way of making the mouth of a character move around when talking in mic?

[spark steppe]

yes

https://tenor.com/view/hahaha-terrance-phillip-south-park-funny-gif-21525680

[desert flame]

...are you gonna elaborate?

[spark steppe]

depends on your model

2d sprite, 3d character?

[desert flame]

3D character

[spark steppe]

rigged mouth bones?

[desert flame]

Blendshapes

Apart from the jaw

[spark steppe]

ok, then i would ask in #audio how to get the audio volume (as im not aware of that part)

then all you gotta do is use it to drive the morph curve in your animation blueprint

[desert flame]

Alright, thanks! Ill try that!

[pallid axle]

https://tenor.com/view/michael-jackson-mj-gif-13033891

[tawdry surge]

@pallid axle ok, is it placed in the level somewhere or spawned?

[pallid axle]

it's placed in the level

[main lake]

@spark steppe Done, but still don't know what modulo to use to guess the night and day, I tried 5 for now but it's not that 😦

[spark steppe]

you use the result of mod15 and check if its below 10, then its day

otherwise it's night

[main lake]

It's that simple ... bruh I'm so stupid 🤦‍♂️ I was trying to do some more modulo 🤦‍♂️

Oh wait there's a case being wrong

[tawdry surge]

@pallid axle Ok. Is there more than one?

[main lake]

the 15th one is night but it's at 0 so it's < 10, in this case it will be considered as day even if it's night, should I go for a %16 ?

[spark steppe]

no

[pallid axle]

no just one I'm going to use it to detect parts that collide with it after I position it to ray vector using the inherited variable or whatever it's called in unreal

[spark steppe]

you start with 0

[main lake]

huh ?

[spark steppe]

0-14 = 15

[main lake]

oh yeah

[spark steppe]

15-29 = 15 minutes

[main lake]

thank you so much

[flat coral]

Esoteric question: Is there any good way in Blueprints to model a series of "if" statements that don't contain each other?

Now, I gotta clarify, because I know some people are thinking 'Branches!' Branches are great at series like this :

    if(condition2) {
        //whatever
    } else {
        //whatever
    }
} else {
    // etc 
}```

*HOWEVER*, I can't think of any good way to do this :
```if(condition1) {
    //whatever 
} 
if(condition2) {
    //whatever
} 
if(condition3) {
    //whatever
} 
// etc

[spark steppe]

sequence => branches

[flat coral]

Chaining them is equivalent to nesting, not series

Key point is that Condition2 above executes REGARDLESS of the outcome of Condition1

[spark steppe]

you want a sequence for sure

[flat coral]

Sequence is a thing?

[spark steppe]

nah, we just made that up

[flat coral]

Oh that might be the move

[spark steppe]

you are lost

[brazen merlin]

Sequence node doesnt exist, its just a myth

You definately cant make one by holding s and clicking

[flat coral]

I'm going to die in real life now

[brazen merlin]

Btw, there are also boolean operatora like and, or, xor, etc that might help here

[spark steppe]

but use them with precaution

as they evaluate all inputs before they execute

[flat coral]

I just got bit by that shit earlier! How do I get some lazy eval in blueprints

[brazen merlin]

I thought a sequence will complete the first output before the next so long as there are no latent calls

[spark steppe]

lots of branches

and/or kinda the sequence/branch thing that you do now, and early return nodes

and the best way to avoid it is using cpp 😛

[flat coral]

I'd sooner accept my own death

[tawdry surge]

@pallid axle Ok I'm not sure if this is the best way cuz I don't really understand your end goal, but I'd do an event dispatcher in the character or whatever is doing the trace.
Then I'd use the level blueprint, assign a delegate event to the dispatcher call. You can use a direct reference to the sphere and move it to the location you pass through the dispatcher

[spark steppe]

i think it's an x/y problem

as it appears that this isn't planned out

[pallid axle]

alright thanks I'm using the sphere to detect cubes that collide with it and then levitating the cubes telekinesis style

[tawdry surge]

Why not just do a sphere trace from the character and move the cubes that hits? Using an actual mesh seems overly complicated

[crimson ether]

Hi! I'm having some issues with collision. I have a spehere collision that detects overlapping actors but everytime I overlap a new actor, i have to recompile the blueprint to see the changed number of overlapping objects. How can I avoid recompiling the code everytime I add an object?

[flat coral]

....This makes very little sense I think? Let us see your collider / object counting code?

[pallid axle]

ah fair enough

[crimson ether]

there are actually 11 spheres inside the sphere collision volume

[flat coral]

Why are you doing it on beginplay, as opposed to tick or some other trigger?

[crimson ether]

but it shows 9 because there were 9 of them last time i compiled the code

[crimson ether]

I'm just testing it... But I don't understand why it has to compile everytime I add another object

[spark steppe]

thats because things spawning inside a collider don't create an overlap event

i'm kinda surprised that you get any overlaps at all nvm, you use get overlapping actors

[flat coral]

What if you remove the class filter?

[crimson ether]

what would be a better way to do it?

[spark steppe]

i'm curious what happens if you do it few ticks later

[crimson ether]

using tick resolves the issue

[spark steppe]

compiling your code may push the initial collider actor down the road to spawn last

you can't really predict in which order all the spheres spawn

[flat coral]

I bet it's a race condition of some sort

[spark steppe]

so your beginplay may fire before all spheres are spawned

[flat coral]

Honestly, if you really need this to work on BeginPlay we can keep having this discussion, but if you're binding it to something else it seems like there's no problem?

[spark steppe]

yea, that looks like a race condition

i bet it also works if you put a artificial delay (0 seconds) in the beginplay of what you had before

[crimson ether]

I'll not be using begin play... So, this shouldn't be an issue, right?

[crimson ether]

whats a race condition?

[spark steppe]

the problem described above, your main sphere spawns and calls beginplay before all other spheres are spawned

[flat coral]

In programming, a race condition is a situation in which two parallel code paths have some dependency between them, such that it matters the order they execute. But since they're parallel, they're "racing" and so the order isn't fixed

They're notoriously hard to debug

[crimson ether]

yes, it does

[flat coral]

Not least because they're intermittent. As you just discovered, a race condition can always resolve the same way given a certain set of preconditions. But the conditions change, suddenly the code breaks

Or begins working, in your case

[crimson ether]

So, how do you debug them? And how do I identify race conditions...

[spark steppe]

that can only be debugged in your brain

😛

[flat coral]

This one's a bit of a bitch because it's not YOUR race condition, it's Unreal's

[crimson saddle]

How can I add custom settings that players can set? Things like custom camera speed or scoped speed or whatever

[flat coral]

And actually you figured out one of the best debugging strategies for yourself! If adding a short delay resolves the issue, you've definitely got a race condition

[crimson ether]

thanks, @flat coral @spark steppe!

[trim matrix]

Could someone help me?

[flat coral]

Never ask to ask for help.

[trim matrix]

Hi guys is there a way to put the timeline of a video into percentage and control it ? I can't find a solution beside making frames of the video & giving for each frame the accurate percent.

[flat coral]

What are you using to play video, just MediaPlayer?

[trim matrix]

yes as a media texture placed on a widget

[flat coral]

I don't know about percentage, but you're looking for the "Seek" command I believe

ALSO you might be looking into the Scub standalone mode https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Game/Cinematic/Scrub/

Google something like "Seek vs scrub" if you don't get the difference between them. I just happened to work with media playback before somewhere else, so I knew the words to look for

[trim matrix]

could some one help me with a kit i just brought

is the

https://www.unrealengine.com/marketplace/en-US/product/third-person-story-adventure-template

this

how do i change the main menu

[flat coral]

I doubt anyone here specifically knows the ins and outs of that particular template.

Do you know how to make a menu in general?

[trim matrix]

nohang

wait

i found a wa

no

wai

tno

how do i change this?

how do i change the background to a different picture?

[brazen merlin]

Open up Brush

[trim matrix]

could you help?

[brazen merlin]

i just did

i will also direct you to #umg

[trim matrix]

wait so open brush?

[brazen merlin]

yes

Appearance > Brush

[trim matrix]

Wait on unreal?

[trim matrix]

Ohh

k

[brazen merlin]

any further questions, please ask in #umg

[trim matrix]

@brazen merlin YES THANK YOU!!!!

[vital aspen]

I'm just stump. On Inventory Systems. I tried google. I tried the market place. I tried 40 + video tutorials on inventories. and I'm just just flat lined stump. I was hoping for 1 more try. anyone have any ideas.

[trim matrix]

conrad you wanna help me make this game?

[trim matrix]

Seems like the whole "set video frame based on percent" thing isn't possible, I will then do it on a rough way : all the frames of the video (125) are gonna be set each 0.008 meaning frame 125 equal 1 on the float variable. Might sounds weird but that's for a project in which the analog input will control the video based on the percent of push on the trigger. Now the only way seems to be a event tick switching the frames based on this percent system & the 0.008 thing that I said earlier. Also the frames are 15kb so no problem to switch them smoothly

[steady orbit]

Does anybody know how to fix this issue? I have finally encountered it...
https://answers.unrealengine.com/questions/246012/spawnactorfromclass-rotation-not-working-as-expect.html

No, multiplayer

My print statements say that the client control rotation is a solid zero

Spawn actor from class wont influence it at all

The server is handling all this

From player controller -----> gamemode

[crimson ether]

I want to detect actors along a spline mesh..

Earlier, I set up an actor (detector) that could detect overlapping actors for that, I used the "Get Overlapping Actors"

But when I try to make the spline mesh, i end up having to use an object reference for the mesh to be used to detect actors but the "get overlapping actors" function can only use components to detect overlaps

How do I solve this?

[main lake]

Could anyone tell me why it tells me it detects an infinite loop please ? Even if I set a condition on the variable "Timer" to keep increasing until it it's not smaller than the variable "Max Timer" https://blueprintue.com/blueprint/hqcau3hb/

[crimson ether]

Using "get overlapping components" help but I need actor references

[supple bane]

this is a super beginner question but,
I have a bool on 1 bp but I need to transfer it to another bp, I need to do this multiple times.
is there a way to do this without just creating multiple variables?

I need to be able to bring that bool back to the first screenshot

both of these images are from different blueprints

[steady orbit]

This is in the Player Controller

This is in the Game Mode

When the player spawns they are always looking 0,0,0 and I cannot fix this...

It works if i run it off of beginplay instead of space bar

[supple bane]

you could probably get the output of the 'getactortransform' and change the rotation from there

[steady orbit]

Nope ive tried

Does jackshit

This forum highlights the issue...
https://answers.unrealengine.com/questions/246012/spawnactorfromclass-rotation-not-working-as-expect.html

[supple bane]

have you tried setting the rotation right after you spawn them?

[supple bane]

right before you possess

[supple bane]

also, how have you gotten ur bp editor to look like that?

[steady orbit]

https://arturjones.gumroad.com/l/IHfzV

Yeah setting the control rotating does nothing

This is so fucked

[supple bane]

thanks

[steady orbit]

Yup

[supple bane]

so what do you want to happen to the rotation?

[balmy rampart]

hello, Im trying to add a widget in screen space inside the HUD class.
the problem is that the widget never shows.
tried the same widget and setup with other actor and it works.
the hud class is also there and set.

anyone know what is happening?

[steady orbit]

I want the character to spawn with the same orientation as the player start

But it wants to spawn looking 0,0,0

[mild ibex]

wrong channel, i believe this belongs in #umg

[supple bane]

have you created the widget then added to viewport?

[supple bane]

have you tried spliting the 'get actor transform' output, then just excluding the rotation?

[steady orbit]

yeah

[balmy rampart]

the widget is a component

[steady orbit]

Event if i set it directly to a hard value it does nothing

[balmy rampart]

thanks

[supple bane]

you getting any errors?

[steady orbit]

A control rotation value of 0,0,0 is overriding everything because of the way unreal split apart the way it handles rotation. Ridiculous

They are dumb

What this means is you can make a working character selection screen for dedicated servers or any type of server. For this to work the player has to be automatically assigned a team then automatically spawned.

They cant linger from the time they join the server to the time they spawn.

It all has to happen immediately for some fucking reason...

Makes lobbies impossible if you want your character to spawn looking the right way...

[supple bane]

yea well I know nothing about multiplayer in unreal so Im no help sadly

I wish U luck tho

[steady orbit]

I think i found a blueprint limitation

Damn

[mild ibex]

https://www.youtube.com/watch?v=4Zm_uOjyImI
how, do you, do, this, I've been on a very very unfortunate journey, after seeing this was possible I did a ton of googling and found a project from 4.13,
TLDR: I went to 4.13, attempted to package the plugin that was in the project, and it deleted the entire project that I've been working on for 9 days, so even if I die, I will figure this out, I've lost too much now not to
thankfully, beyond thankfully, I was able to recover a decent chunk of my project with Recuva, but the mental strain and damage has 100% been dealt

[supple bane]

are you able to make a literal bool then use that same bool on a different bp?

[mild ibex]

i think what you were looking for, in your request, are functions

if im not mistaken you can store all of that in a function

[supple bane]

yea i just realized that

im a bit slow 😅

[mild ibex]

np

[supple bane]

I totalyy forgot return nodes were a thing lol

[balmy rampart]

Hi,. in multiplayer games what really matters most is the player controller
then the player controller posses the character.
if you character has a camera it automatically assigns that as the controller view (the actual view for the player)
I dont know if it's that what youre asking, sorry I didnt read all way through the discussion

[tranquil birch]

hi

can i ask here about this?

i want it to be scrolled i test it on the right side so i dont do anything stupid

[brazen merlin]

looks like #umg

[tight pollen]

I have a wheel that has to turn all the time, how can I do it differently without using EventTick?
to optimize which option would be best

[gentle urchin]

Tick.

If it needs to look smooth.

Alternatively you can do it in a material i think.

[tight pollen]

there is no other option?

[gentle urchin]

What would you expect?

For something to rotate smoothly, it must be updated at atleast 24fps

I'd say way more but

[tight pollen]

and if would be only active when I'm close to him?

close to actor

[gentle urchin]

Depends on your logic

[tight pollen]

then EventTick would be active

[gentle urchin]

It should only move while visible

[tight pollen]

yes, but EventTick is still active

even though the actor is invisible

[eternal reef]

Custom Loop or Timer that is only active when relevant

[gentle urchin]

Right, so you need logic to stop that

[tight pollen]

or Bind and Unbind?

[icy dragon]

Is it a "driveable" wheel, or just rotating wheel prop?

[tight pollen]

rotating wheel prop

[icy dragon]

Then you can make the rotation in material.

[tight pollen]

some tuturial how can i do it?

with materials i don't have experience

much

[icy dragon]

https://www.tomlooman.com/unreal-engine-material-vertex-shaders/

[tight pollen]

and how does this relate to optimization?

and thanks for post 🙂

[icy dragon]

Rotating (ambient) meshes in your world adds a dynamic element, but doing this on the CPU and having to pass it to the GPU each frame is a relatively slow operation. Without realizing you may be updating your collision every tick too, causing overlap updates and hurting performance even more.

[faint pasture]

Why is tick a problem? Rotating something smoothly is literally the type of stuff it's made for.

[faint pasture]

This is also a great approach if you have enough spinny things that are cosmetic only that its worth the trouble.

[gentle urchin]

Pre optimization

The most common pitfall 😄

I walk into it almost every day

[eternal reef]

"This works... but lets spend another 5 hours optimizing this trivial thing" 😅

[faint pasture]

"Let's optimize tick out this one actor in this program with literally thousands of objects updating all the time"

[gentle urchin]

I spent 2 weeks trying to reduce the movecost of my ai's, while already having 5x the amount i originally desired.. what more to optimize

[faint pasture]

I mean don't be dumb, but computers are fast.

[gentle urchin]

Yeah

They definetly can handle a thing or 5 on tick, so i wouldnt worry about rotating anything on tick in thr first place

[faint pasture]

I run a full drivetrain and physics sim on tick in blueprint, you can spin a mesh.

Another project does over 1,000 line traces on tick in like 1ms

computers are fast as shit

[gentle urchin]

Yepp yepp.

[faint pasture]

admittedly the trace example is in c++, went from 12ms to .2ms moving it to cpp

[gentle urchin]

Its insane how that helps

When moving the ai to cpp

I gained 8x performance

Identical code otherwise

[faint pasture]

I would never give up BP tho, it's so much faster to prototype in. I wouldn't have known where to start in some of my projects without it.

and if BP ran exactly as fast I'd probably never fire up Rider again.

[gentle urchin]

Yeah i agree. Theres a reason it started in bp ^^ and further development starts in bp

Moves it to cpp when itw closing up to completion

[outer pewter]

guys when i enter my stage the camera doesn't follow the player until i press f8. i used to click f8 in the past to get a free camera movement so i can see whats happening but now. i have to click it every time before i start playing

[faint pasture]

Are you Playing or Simulating?

[outer pewter]

simulating

[faint pasture]

F8 is possess/eject

Play instead

simulating starts it up without possessing a pawn

[outer pewter]

but its not convenient to test in playing every time it takes more time

[faint pasture]

well then reach for F8 or figure something else out.
Play will play the current level, not from game beginning

Play + F8(eject) = Simulate
Simulate + F8(possess) = Play

assuming you aren't doing anything special in Gamemode regarding player pawn

[icy dragon]

What's the struggle with just pressing F8 anyway? Unless the keyboard is missing that key, then it's understandable.

[eternal reef]

Cant you set Spawn Player at Current Camera location?

[faint pasture]

IDK maybe, isn't it called Play from Here or something?

[icy dragon]

Right click -> Play From Here

[eternal reef]

yeah should be where you can select simulate, etc.

[outer pewter]

starting a game standalone take way too long for testing on it

[gentle urchin]

Testing on a toaster?:p

[icy dragon]

Just play from current viewport or new window lol

[faint pasture]

wait till you gotta launch the editor every time. Although startup batch files are great.

whoah didnt mean to take up half the screen dudes

[outer pewter]

okay okay now i understand i thought that play is same as run a standalone game and simulate is how to usualy test but its play selected viewport

sorry for the misunderstanding

and thank you for the help

[faint pasture]

Play plays the level, standalone is a bit different.

[outer pewter]

yeah thank you

[dusk dust]

Is there a way to get a static mesh array of all the instances from an instanced static mesh component?

[gentle urchin]

Uh

Whats the purpose

What are you trying to do?

Its just one static mesh afaik.

[untold dust]

Hello everyone

I have a problem with the GUI widget, I have custom mouse pointers, I set them per hardware in the settings configuration. It works pretty well, I can change the mouse pointer in game... In my widget I have a button, note that I see my custom cursor in game and in UI because in pc, I set the mode for both.

The problem is that when I click on my button in my UI, I want to switch cursor. but by clicking on it, nothing changes as long as the mouse cursor is located in the user interface.

If I click on my map, I can see that my cursor has really changed

maybe it is built-in engien behavior that when UI loses focus it changes cursor back to default?

[glad sigil]

Anyone knows why all inputs automatically release after a couple of seconds in both UE4 and 5? This happens also with enhanced input. The issue is that if you keep an input hold forever, it would automatically release. Anyone knows anything about it?

[worthy tendon]

does this happen in a new project?

[gentle urchin]

Never experienced such a thing

[dusk dust]

But it has many instances of that one static mesh

[tight pollen]

how can i set draw distance for particles?

direct in particles

[gentle urchin]

What exactly is your purpose

[worthy tendon]

you can setup lod's for your particle system

[gentle urchin]

What are you trying to do

[tight pollen]

where?

[dusk dust]

I'm just wondering if it can be done

[gentle urchin]

It cant

[dusk dust]

I see

[gentle urchin]

You can get their transforms

By instance index

[dusk dust]

🤔 why can you get everything else but the mesh itself

[glad sigil]

Yes, just created both a project of ue4 and ue5

[gentle urchin]

Its just one mesh

What is there to get 🙄🤔

You can get the mesh

[dusk dust]

I don't fully understand how it works, are the instances their own meshes or you are saying every instance is collectively one mesh

[gentle urchin]

^

[gentle urchin]

Its all one mesh

Copied

[dusk dust]

Hm

[gentle urchin]

In the gpu

[dusk dust]

Ah

[gentle urchin]

If you want an array of meshes youd need to use regular sm components

[dusk dust]

Okay that makes sense now

[gentle urchin]

If you wanted to change some of them, it needs to be part of another ismcompomemt

[dusk dust]

Thank you I understand now

[worthy tendon]

click Add LOD, then set LOD index to 1.

right click on a module that you want to modify and select Duplicate From Highest/Higher. then you can change its properties.

[glad sigil]

Never mind, was the fault of my shitty keyboard

[worthy tendon]

you can set it up in such a way that after certain distance it no longer spawns particles or spawns less particles.

@tight pollen
https://docs.unrealengine.com/4.27/en-US/RenderingAndGraphics/ParticleSystems/LODs/

[tight pollen]

thanks, i found it

🙂

[leaden goblet]

sorry for long delay, im back to the problem again, but how can i do it? how can i get a camera in split screen? there are four cameras, and as far as i know, rotating it to one of them will rotate it on all screens, i cant rotate it "locally" to every one of them

[tight pollen]

I don't know why, but the opposite is true for me, the closer I am to the particle, the worse it is seen, how to change it 😄

can someone help?

[zealous fog]

#niagara or #visual-fx I also recommend sending pictures otherwise we are left guessing what you mean

[tight pollen]

For LOD 0 i set 0 distance and i don't know why the smoke completely disappears when I'm closer

it should be the other way around

[maiden wadi]

Random semi related side note. Would recommend using Niagara in the future as Cascade is getting deprecated in 5.0

[icy dragon]

This is #visual-fx question

[tight pollen]

ok

[viscid roost]

so im trying to make a material instance to use for all other 3d meshes, but I dont know which parameter to use, to add textures

[icy dragon]

#graphics

[viscid roost]

I thought material stuff was blueprints? oh well sorry

[hexed glade]

A quick question. Can I create multiple arrays using the same structure or would they overwrite eachother.

[maiden wadi]

A structure is just a definition of a container of data.

[gentle urchin]

No reason they'd override each other

Like, if they would, why would even an array of structs work..

[hexed glade]

Just had to check. Thanks for the answer.

[gentle urchin]

^^ Np

[wary tinsel]

hey guys I need to create three different pawns. They're basically the same in the main features and they are only different in things like mesh, materials and a bunch of variables. What's the best way to do it? Do I need to create two child bp or is it possible to spawn three different pawn from just one bp? I would like to avoid extra code/work, thanks!

[maiden wadi]

You cannot do that in local coop as that is one world and there is one object to rotate. The only way to do that with world in a local coop is to have four objects and hide three of them for each player which is not ideal. A real manager for this would be best, but otherwise recommend screen space components.

[eternal reef]

Id go for a Base Char and Childs if you want the differentiation between to be fixed
If its something like "yeah lets give that guy 10 more health or so" you could just use one actor where you expose your variables and just adjust them slightly

[maiden wadi]

Yeah, really just depends. You can either create Asset styled children of the one class and change stuff in them, or just do it all in one class with a switch of some sort. Just depends on scope.

[wary tinsel]

wouldn't be wrong do all in one bp so? mmm

thank you guys!

[eternal reef]

If its just small stuff, go for it
If every character has its own move set, special abilities or whatever it might be better just to avoid clustering everything in one place
But if you just want another skeletal mesh and everything else stays the same, id use just one

[outer pewter]

can i delete this stuff or will it cause a problem in the project

[faint pasture]

You can delete everything in Saved but you'll have to recompile shaders

[outer pewter]

not all saved file i just want to remove the auto saves file to gain some space its 100 mb

[faint pasture]

sure go for it

[outer pewter]

okay thanks

because unreal started to freez from time to time and i found that while copying the game folder there are some files that freez everything idk why

what about the files in source can i delete them

[icy dragon]

Source has all your C++ code.

[outer pewter]

but i use blueprint. is it still needed

or did i just ask a stupid question

haha

[remote meteor]

🤔 you might need it if its there in the first place

else you would need to manually edit ur uproject to remove the cpp portion

[maiden wadi]

Uncertain about BP only projects, but I semi regularly ditch the following folders and rebuild.
.vs, Binaries, DerivedDataCache, Intermediate, Saved

[remote meteor]

usually the source folder wont be there on a full bp project

but at anytime of the project you pressed create c++ class

it will be there and .uproject will also be modified to include the module

if you made sure you dont have any c++ thing, you can remove it safely by also editing the uproject to not include the c++ module

[azure mason]

Tried it on a different computer and not getting the errors. I suspect reloading the editor would've fixed it

[gentle urchin]

When using an Interface , does one usually make helper functions with the interface as well to help communication between two entities?

Feels like i'd be better off just ditching the interface, relying on references and a system of inheritance..

Like when hovering a building i'd like to check if the selected actor (stored in playercontroller) meets the requirement for interacting with it in a meaningfull way

But to know this i have to get the data from the selected actor, which may or may not be an NPC

ERh.. this probably doesnt make to much sense

[azure mason]

References comes with its own set of problems. IIRC when a BP references another BP it has to load that BP and all its references etc.

it can become very very heavy on memory

https://youtu.be/j6mskTgL7kU This is a good video on the subject

[gentle urchin]

I'll give it a look. Perhaps it can give me some insight into how to structure the communication between these classes

Thanks

[tawdry surge]

That whole talk basically boils down to, don't cast unless you have to and always cast from the less persistent object. Aka don't cast from the character to the door, cast from door to character

[gentle urchin]

My scenario is between the npc and the building, interfacing through the controller so to say

Between a selected and a hovered object basically

which may or may not interact together

[tawdry surge]

If you can use an interface or a dispatcher that's the most efficient way, since it won't load the receiver.
Hovering you can get a direct reference at runtime

[viscid python]

I want to base the fresnel exponent of a material on a stats value (health) any advice on how to do that? 🧐

[azure mason]

could do a parameter?

then when the stat value changes you update the material parameter

look up material parameter collections

[viscid python]

But can I access my actor's stats on-the-fly in a material?

[gentle urchin]

I may get around using dispatcher actually. NPC must as i see it have a reference to the building in any case

[azure mason]

the material doesn't look it up

the BP/code looks up the material and sets the parameter's value

[viscid python]

Ah I see, so I cannot add that code in the material blueprint but in the actor's blueprint?

[azure mason]

correct

https://docs.unrealengine.com/4.27/en-US/RenderingAndGraphics/Materials/ParameterCollections/

think of it as the material reading a variable from a Blueprint (sorta)

[viscid python]

Thank you for pointing me into the right direction 😁

[tawdry surge]

@gentle urchin If the ai is gonna interact with the building based on selecting it I'd actually use an interface and get a reference to the building from the selection process.
If the thing you select has the interface implemented it'll do a thing. Otherwise it will ignore it, no specific reference needed

[gentle urchin]

Its gonna display if the selected target (npc) can be assigned to the hovered building. I suppose i could have two more interfaces, one for building and one for npc and do the check that way

Not sure i can keep them away from hard referencing each other anyways but perhaps ..

Actually it should be very possible, nvm

[maiden wadi]

In a city builder type it shouldn't matter. Anything should be able to cast to anything. Only the visuals are the issues if you have multiple meshes for each building and hundreds of citizen looks, but that's different issue that avoiding casting won't solve.

[gentle urchin]

So i should just let my building cast selected actor to npc type with no second thoughts what so ever ?

[maiden wadi]

Sure. Your NPC class shouldn't be that big in a traditional city builder. At most it'll have softrefs to it's visual stuff which will all be static in a datatable or dataasset anyhow.

The only reason to avoid casting or hard referencing is if the objects referencing each other won't always be loaded together. But in the case of buildings and NPCs in a city builder, they pretty much always will be.

[gentle urchin]

Yeah true. Ill go with casting for now then

Converting to bpi would double up alot of the work already done in the npc class

Think ill ditch my original interface aswell

Ty for input

[cunning bane]

Um, excuse me. May I have any tip how to find a solution?
My "Cast" block failed and I dunno why.
"Shape Factory" is a soft object path variable with blueprint of the "SShapeFactory" class-actor, so i've assumed this "Cast" block should work, but it doesn't.

[rose citrus]

how do I change the line that connects nodes in blueprints? I don't know what I did but the white lines aren't bold anymore on one blueprint

[merry cobalt]

I have run into that. Its a bug I think. try reopening the blueprint

or if that doesnt work, maybe try reopening the project.

[versed sun]

did you click this ?

[rose citrus]

No. I just clicked it and nothing happened

[dawn gazelle]

I'm going to guess that the conversion of that structure to a soft object reference is the real problem. A structure is a means of holding data, I don't think converting it to a soft object reference would work.
This node appears to retrieve the path that would be stored in it, but I'm not sure how one would load data from this path.

[outer pewter]

unreal engine freeze from time to time and when i try to copy the project files some files make the speed reach 0 and freeze what's is wrong with them and how can i fix it

[dawn gazelle]

That's more of a #ue4-general question rather than blueprints, but make sure UE is closed, then try copying, as that then rules out that it has anything to do with Unreal Engine. There's literally a hundred different things it could potentially be otherwise, from faulty hardware, to too many read/write operations being performed on your drives, to your CPU being overtaxed, to your virus scanner being a dingus, etc.

[neat prairie]

how do you alter a material's parameters via blueprint?

[dawn gazelle]

You can create dynamic material instances and modify them (put the parameter names in the Parameter Name field, and set the desired value), then you set the mesh to use that instance of the material.

[quartz pawn]

I have this odd issue when making a new level. I have this player controller and these pawns that all work on one level. Then when I create a new level with a new gamemode and assign everything, it doesn't work. For example, the pawn spawns in but isn't animated and doesn't move.

[raw orbit]

im working on a floating health bar widget and i was wondering what would be the best way to show / hide it, would anyone have advice? the obvious choices would be to use a timer of some sort or a retriggerable delay but somehow those methods feel a little off to me

[plain dagger]

Are cross-posts allowed here?
"I'm wanting to understand how I can implement the ASD or ASDR concept from Steve Swinks 'Game Feel' book"
#ue4-general message

[earnest tangle]

If you didn't get a satisfactory response it's fine to ask in other channels after waiting for a while (as long as the channel's topic is relevant)

[plain dagger]

thank you @earnest tangle ! Was actually hoping for a real good lively discussion from my question

[quartz pawn]

anyone got any ideas

[versed sun]

this might help https://www.youtube.com/watch?v=EjSf1Hru_u0&ab_channel=MathewWadstein

[quartz pawn]

thats not the issue

I already know how to do that

but the issue is that the player doesn't function

like the player wont move

[versed sun]

and you set these in your new level ?

[quartz pawn]

yes

[versed sun]

put a print string in each of your parts( Player Controller, Player Character , Gamemode) so that you know that each one loaded

[quartz pawn]

well I know they all loaded when looking in the level viewer.

My player can turn not move

[dawn gazelle]

Check to make sure that your selected game mode and game state are inheriting from the appropriate classes -> ie. If you're using a game mode that inherits from "Game Mode Base" your game state must inherit from "Game State Base"

[quartz pawn]

alright the GameState was not but now it is

nothing works still

but its an issue with the gamestate

oop nvm I got it fixed

[quartz pawn]

that is good to know

[dawn gazelle]

I know when I first encountered it, I was struggling trying to figure out why things were just broken in my level for several hours.

[quartz pawn]

damn

I wonder why it breaks everything

[dawn gazelle]

I think it has to do with functions that exist within Game Mode Base and Game State Base that need to communicate with each other before allowing players to spawn or perform inputs and the like.

[quartz pawn]

ah

another question I have is are there any good tutorials for game logic. By that I mean picking players and assigning them teams by chance.

[fair magnet]

Blueprints go in order right? but they do not wait for the nodes to "finish"

[dawn gazelle]

There are some latent nodes that do have callbacks and things that can execute later, but anything else will execute in order received and basically instantly for most things.

[fair magnet]

Yea I wanted to make something like "stages" so like it calls Pre-Exec then exec then post-exec
but it literally just runs at the same time lmao

probably have to call them at the end of each stage

[dawn gazelle]

Well, if you have multiple things that you want to do before reaching a stage, you could have booleans set up for each of those things that need to be true before the next stage is called. When any part of the stage finishes, it can set its boolean true and call a "ready" function that checks all the booleans from the things that need to be done in the stage are true, and if so, then proceed to the next stage.

[fair magnet]

Hmm could have like a success or failure check

[manic maple]

Hey all, got a situation where I need two actors to be tethered together. Actor A heavier with free movement, Actor B with restricted movement [Need Actor B to only be able to move so far away from Actor A] Imagine a character attached with a chain to another.

Is physics constraint best for something like this? Or would setting some max distance between work better in BP?

[fair magnet]

What do you think about this?

[lone arch]

hey guys,
anyone have experience working with datatables?
i am stuck importing a JSON file , i wanted some help with it

[remote meteor]

should be success || proceedWithFailure btw

[fair magnet]

oh you right

mb

child would look like this then

[remote meteor]

do call to parent instead but yeah, this way of doing things should be possible though,

just wondering if it might feel "too restrictive" if you plan to use it for many many stuff

[fair magnet]

Doesn't really matter since the dispatch would still trigger :o

[remote meteor]

incase you need to change the callback names you would only need to change it once 😉

[fair magnet]

And I can bind dispatches to something else aswell ^-^

[fair magnet]

Click Add and then import your json o-o

[lone arch]

umm yea about that the JSON data isnt straightforward

[remote meteor]

i usually use csv for data tables so 🤔 not very sure

how is the format?

[lone arch]

"Name":0,
"time": {
      "day": 0,
      "ms": 815000
    },
    "imu": {
      "lax": 0.12,
      "lay": 0,
      "laz": 0.36,
      "avx": -0.0625,
      "avy": -0.1875,
      "avz": 0,
      "orix": 252.875,
      "oriy": 63.6875,
      "oriz": 54.1875
    },
    "bmp": {
      "tmp": 23.367091,
      "prs": 23.367091,
      "alt": 1632.150391

}
]```

[lone arch]

me too but JSON file is the one my seniors gave me which is coming from the device they are using

i cant understand how the structure would be made for this
i tried making multiple structures like time,imu,bmp and then get those structure in a structure but no luck with that too

i thought this might work

it gives me this error when i try to get my file into unreal and setting its structure

its where the time:{ starts

[remote meteor]

so in your case

you need a "master" structure

then only a time structure

then only everything else

i would prefer cleaning up the json first

before importing to unreal

[lone arch]

thats what i did ig but it give me that error still?
any idea why?

[lone arch]

this one @remote meteor

[remote meteor]

let me try again

[lone arch]

so this was the right way to go right?

[remote meteor]

[
    {
        "Name": 0,
        "time": {
            "day": 0,
            "ms": 815000
        },
        "imu": {
            "lax": 0.12,
            "lay": 0,
            "laz": 0.36,
            "avx": -0.0625,
            "avy": -0.1875,
            "avz": 0,
            "orix": 252.875,
            "oriy": 63.6875,
            "oriz": 54.1875
        },
        "bmp": {
            "tmp": 23.367091,
            "prs": 23.367091,
            "alt": 1632.150391
        }
    }
]

this should be the correct json format

urs is missing a braces

[rigid fractal]

hi, what is the best way of detect when there is an object close to the player? there will be several objects scattered around the map
using a collision box on the character be a good choice?

[lone arch]

OMG i should jump off a cliff ;-;

[remote meteor]

😆

dont jump

[lone arch]

thanks for the help @remote meteor

[manic maple]

Anybody able to help with my issue? Want to anchor a character to a point so that they can only move so far away from it.

[remote meteor]

yes, have a collision object type of "interactable" and such, have collision sphere/boxes on each side to detect them accordingly when they overlap

[remote meteor]

physics constrain is only for within the actor

you can try physics handle but im not very sure

what is your intended behavior when Actor B reaches the boundary?

[manic maple]

For them to be unable to continue moving away. I want them to only be able to move within a radius around Actor A.

So they can still move, and move back towards Actor A. Imagine them chained up to a point

But I want Actor A to also be able to move.

Actor B will be dragged by Actor A.

Actor B can move, but only within a certain radius of Actor A.

I've calculated distance between the two. The issue is the constraint method itself.

[remote meteor]

i imagined a very stupid way of doing this but hear me out

have a hollowed sphere just to block actor B

😂

[manic maple]

That is a very stupid way of doing it. And bonked myself on the head for considering the very same thing earlier too 🤣

[versed sun]

so stupid it just might work

[manic maple]

I mean maybe it'd work. I don't know, seems messy and prone to other issues down the line 😅

[remote meteor]

yeah

it would work just fine

😂

the actor B's object type would be the issue since it would need to be a unique one

i dont think physics handle can do this

maybe tick to check distance, if too far then set back location

[coarse orbit]

reading other people's(marketplace) BP becomes very hard to understand/read when they implement multiple function as you can't grasp the scope, is there an easy way to make me read, remember or understand other people's code when they implement functions?

[remote meteor]

first understand the purpose and intention of such, roughly grasp what sorts of nodes/codes/abstract you would need to achieve those, and look for them

[versed sun]

What are actors A and B ? Players, AI, Static Meshes?

[fast escarp]

Hey folks, I'm trying to debug the value of a variable for an animation instance in an animation blueprint. In typical blueprints, you can watch a value and hook the debugger up to an instance, but I don't see any such system for animation bp. What are my options for debugging these?

[coarse orbit]

easier said than done, I'm looking into a function in which 3-4 more functions are implemented into that function and it's sub functions 😅

[manic maple]

Two controllable characters

[manic maple]

A is heavier and in control of overall movement. B is lighter and cannot move beyond the radius of A.

[versed sun]

So player B cant get too far from player A ?

[remote meteor]

indeed, it does takes some time to be able to scope what to expect when reading codes

[manic maple]

Correct.

[versed sun]

and if A moves , B gets dragged

[coarse orbit]

ah thanks so I guess no easy way exist and I have to find my way through these matryoshka dolls functions...

[manic maple]

B will get dragged by A if it hits the radius, yes.

But that's not so much an issue, it's more the constraint around A that I need whilst controlling B.

[remote meteor]

hollowed sphere

🤣

[versed sun]

And did you mess with Physics Constraint Actor ?

[novel rock]

How do i do (AND OR)

[dawn gazelle]

AND OR

[remote meteor]

AND then OR

[remote meteor]

whats the logic again?

when int = 0 and widget is use, then?

[novel rock]

yes

[remote meteor]

what is the or for

[dawn gazelle]

If you need both to be true, then it's an AND. If it's either or both, then use an OR.

[novel rock]

weather waponID = 0 or WidgetInUse? or if both are waponID = 0 or WidgetInUse?. I fell i might be over thinking this.

Ill just use or i might not need and.

This works fine

[silk hinge]

Hey guys

I wanted to use a "hide bone by name" node, but it's hiding all children with it, Like I hide "Spine_02" My entire upper body goes invisible for some reason, I'm on 4.26 version, I saw some videos my node dosent work the same way, any ideas ?

[crude timber]

Hey everyone ! I'm having a hard time finding how to get Audio from my desktop or microphone. Would appreciate any help ^^
Trying to change blueprint parameters depending on what I'm listening to. I know I have to use AudioCapture component, but it auto selects my microphone, and I want to choose the sound coming from my desktop (like the StereoMix)

[vast lion]

Why can't I get the viewport tab for blueprints that derive from scene component?

[manic maple]

Sorry, didn't see the ping. I don't think it works with movable / player controlled characters. Couldn't get it to work anyway?

[tight schooner]

Maybe they thought you didn't need one cuz it can't have its own component list, and needs a host actor for full functionality

[vast lion]

Can't it have a component list though?

I can have other scene components attached to it

[tight schooner]

Don't think components can have their own components?

Actors can make a component hierarchy yeah

[vast lion]

In C++ I seem to be able to subclass scene component then attach other scene components to it from within that class

So I thought I could maybe do the same in BPs

[manic maple]

Anyone have any other ideas? @versed sun ?

[viscid arrow]

can someone help me with this code, i wanna see what I'm doing wrong

im trying to make a system so that when the projectile hits a enemy it'll cast a line trace to a closest enemy and then rinse and repeat

[brazen pike]

Whats the problem

[viscid arrow]

the line trace only goes off in the first enemy

it doesn't chain

[brazen pike]

Well it looks like it's going to be chaining in order, first of all, rather than based off closest but that's not your problem. the linetrace might be hitting something you didn't intend if you haven't set it to ignore that

[viscid arrow]

i see

[versed sun]

im not sure , i tried out the Physics Constraint and kind of got it, but it was keeping Actor B exactly X units away, not Less than X units

[maiden wadi]

It is. It's hitting the first hit actor. Need to add that actor to the next trace's array of ignored actors.

[manic maple]

Any chance you could share how you got that working?

It just doesn't seem to constrain for me?

[versed sun]

sure,

[viscid arrow]

it works now, thanks

[winged sentinel]

hey everyone, im trying to get the amount of ai focused on each individual player, is there a way I can do that?

that bp is not really working well

[brazen merlin]

i dont know off the top of my head, the ActionRPG sample project is built for mp and the AI has to determine which player to attack as far as i recall

[winged sentinel]

hmm that would eb pretty useful to look at is it on the mp?

[brazen merlin]

its been one of the more helpful projects for lots of things for me

[brazen merlin]

to look at is it on the mp yes? it is meant for mp as mentioned

[brazen merlin]

hmmm, you search for it or go through learn tab?

through learn tab its dated 2019

[winged sentinel]

yo its so useful lol

[brazen merlin]

👍 there's BTs, montages, gameplaytags, list goes on, its pretty helpful

[random plaza]

Is a good way to do quests is to have an array of quest marker blueprints for NPCS to walk to, and execute dialogue options from those quest markers?

for instance, have arrays of transforms for each npc

[winged sentinel]

i found exactly it in seconds

[brazen merlin]

how many different data bits are there for your quests? can you list them?

[random plaza]

there's a struct for dialogue options that contains ways to give and take items from a player's inventory

i already have a functioning dialogue system

[brazen merlin]

if you have a struct already, use a data table

thats how i would do it

[random plaza]

well, i'll try that. havent gotten into data tables much but i really should

[brazen merlin]

its flexible enough that you can expand or trim without having to variables

[random plaza]

ive been using arrays instead of them so far

[brazen merlin]

they cannot be updated, you can only pull from data tables

you would get the row of the desired quest, that returns a struct of that row's data (store it as a var), then you can call that struct wherever

[random plaza]

ok, i'll try and do that

thank you

[manic maple]

Any help from others appreciated, still trying to tether one character to another. Physics constraint does not seem to work.

Recap; Need Character A to move freely, whereas Character B is tethered and can only move a certain distance away from Character A

[brazen merlin]

#legacy-physics would be a better place to ask

[manic maple]

But it's not necessarily a physics related question. UE's Physics Constraint may not really be the solution?

[viscid python]

How can I make my health bar widget disappear if no enemy is in sight (and appear when near to an enemy)? I searched high and low but couldn't find a way to do it 🤔

[brazen pike]

pawn sensing would work

[viscid python]

Pawn sensing?

Ah that is a way to make enemies sense the player, right? Could this be done for the player, to? So that I can activate his health bar when near the enemy (from the player perspective?)

[brazen pike]

https://www.youtube.com/watch?v=XUFKEJRTaGg This might help

[brazen merlin]

im doing a simple tick check against distance to player - pawn sensing uses tick anyways so its similar performance cost. (less if you consider its just tick and not all the extra pawn sensing stuff)

[brazen pike]

against every enemy at all times? surely that would create a performance hit

[brazen merlin]

lol, each enemy runs the tick. its not that bad, i usually have 60 AI at a time

technically its on a timer that fires every second, but timers are on tick, so the difference is only running the distance check every second

[viscid python]

That would work, too, I guess? If I can pull that off 🤔

[viscid python]

Sounds good, too, but how does that look in blueprint?

I can't make a distance check "distance to actor" for example in my blueprint.

[brazen merlin]

mine is sp so i get reference to player

[viscid python]

How are you doing it?

[brazen pike]

the "get distance to" node works

[brazen merlin]

when the AI spawns I start a looping timer that fires it's delegate every second. I clear the timer when the AI dies. You could also control this timer more accurately (like start it when they detect player for example)

[brazen merlin]

the health bar belongs to the AI, so i hide it or show it based on distance check result. I also use a do once for hide/show and the opposite resets the other

cant says its the most optimal, i threw it together because i thought seeing health bars would be good

[novel rock]

what am i supposed to put here

[brazen merlin]

AnimInstance which lives in your skeletal mesh - the mesh that you set the AnimBP on

[brazen pike]

you could get rid of the bottom half of that and just connect it up to the 'and' node

[viscid python]

I guess I'm in the wrong BP for it to work then 🤔

[novel rock]

the player controller?

[brazen merlin]

I like it!

good idea

[brazen merlin]

nope, your character, that's where the skeletal mesh lives

[brazen pike]

it may not work in functions

[novel rock]

Character controller

[brazen merlin]

like i said, didnt care much to optimize it, wanted to test to see if i like it/helped me as aplayer

[brazen merlin]

character... as in character... or pawn

GET MESH

[novel rock]

get self

[brazen pike]

oh nah I meant @viscid python 's 'get distance to' node

[brazen merlin]

ahhh

eventually ill try to optimize it....

[viscid python]

Yes that must be it. Hm, I really can't seem to get that done 🤔

[brazen pike]

check if it works in event graph

if you aren't doing it there

[viscid python]

It sounds quite easy to hide the widget but it seems it is not 🤔

[viscid python]

Doesn't work there 🤔

[brazen merlin]

what i posted is in a function btw, the Timer calls that function on a 1 second loop

[brazen pike]

can you post what you've written so far?

[brazen merlin]

Mesh > AnimInstance

[viscid python]

I'm on the event graph of my player and I have not written anything because I don't really know where to start. I have an event tick for my foliage interaction and just wanted to add a "get distance to actor" node there but it's not as easy as that it seem 😅

[brazen pike]

try unticking the box on the top right when you right click, I think it says "show only relevant" may show up

[novel rock]

mesh anim instance thing

[brazen merlin]

oof

[novel rock]

https://tenor.com/view/im-trash-toy-story-cute-gif-14415008

[brazen pike]

this is what youre talking about right lol

[brazen merlin]

thank you

[viscid roost]

Hello guys, im making a spline mesh, everything is working but for some reason the mesh is locked at world origin and does not move when I move the spline it self

[viscid python]

Indeed! Now that was helpful... I didn't know that... 😮

[brazen merlin]

since i opened the editor anyways...

[brazen pike]

yes, now get anim instance has a cast in it (I'm pretty sure) so you wont need the cast anymore

[brazen merlin]

they need to cast it to the specific anim bp, anim instance is generic

[viscid python]

However, I still don't know how to get a reference to my enemy there and how to check if a certain distance is reached etc. I'd probably need a tutorial. If only I could find one 🤔

[novel rock]

Thanks

[brazen merlin]

unless Dieton doesn't need specific variables 🤔

[brazen pike]

you have more than one enemy right?

[viscid python]

Indeed

[brazen pike]

something like this would work probably

@viscid python

You'd wanna put this in your AI blueprint so that it can check the distance between itself and the player

This is assuming you are in singleplayer, multiplayer gets more difficult

It's not super efficient, but would work for the time being

[viscid python]

Oh great, that looks good, I will see if I get this to work, thank you 😉

[mild ibex]

https://www.youtube.com/watch?v=4Zm_uOjyImI
how, do you, do, this, I've been on a very very unfortunate journey, after seeing this was possible I did a ton of googling and found a project from 4.13,
TLDR: I went to 4.13, attempted to package the plugin that was in the project, and it deleted the entire project that I've been working on for 9 days, so even if I die, I will figure this out, I've lost too much now not to
thankfully, beyond thankfully, I was able to recover a decent chunk of my project with Recuva, but the mental strain and damage has 100% been dealt

BUMP

[faint pasture]

Why are you guys sending data to anim instance instead of polling the pawn from the animBP

[lost schooner]

anyone know if there is a way to get a different wildcard type for an input value and a return value? right now the moment i set the input value to something it assumes the return value is the same type

[gentle urchin]

Have the output not as a wildcard is your option

Whats the usecase? Why would they differ?

[lost schooner]

yea that doesnt really solve the problem, the input is a struct, the output is a different struct, but there different based on the input vs output [its a wrapper for json->struct->http request->json->struct

input is a request, output is a result

[gentle urchin]

Doesnt sound like something youd use a wildcard macro for but what do i know :p

[lost schooner]

i mean. its not a huge deal, it just means i have to do ONE addional node after the macro that converts the returned string from the request to the result json object->struct, i was just hoping i was missing something because this is like 99% there

[trim matrix]

Okay this is driving me mad and I have been working on this problem all day. Basically I have a wasp pawn that the player controls. When you sting another wasp, using the Z key, a sound plays on attack and another sound plays if you impact the other wasp. To calculate impact I do a series of sphere traces around a stinger socket. If the z key is also held at time of impact, the stinger lodges in the enemy until the z key is released, dealing increasing damage while the z key is held (and the stinger is in contact).

If players just tap z to attack enemies, everything works fine. If they press and hold z (assuming they hit properly), the logic only works the first time, then always defaults to the 'tap' logic forever more, regardless of how much time I wait or what enemy I hit (it doesn't matter how many 'single tap' attacks I do first, the logic always breaks directly after the first 'press and hold'). I figured this was a boolean getting set once on the first attack then not being correctly reverted. But I can't seem to find the problem.

I've got a timeline to track the progress of the sting. Normally in the 'tap' attack it starts at 0 and ends at about 1.3 before resetting to 0 (manually overriden with 'set playback position' and not triggering updates or events). When I press and hold, I freeze the timeline at whatever point in time I hit the enemy and the timeline stays frozen until I release the z key, at which point it reverses to 0 (ie I set my timeline playrate to -1). This all works well the first time. On further ocassions, even though the timeline freeze goes through, it just doesn't seem to do anything and the timeline continues playing.

Is there something fundamental I'm not understanding about timelines? When I do 'play' on my timeline, am I creating a new instance of the timeline or something? I have it set to not looping, so I assume if I am reversing the timeline and I get to 0 time (my lower bound) it won't go any lower or wrap back around to its maximum time?

[gentle urchin]

There is atleast a play reverse. Not sure if it changes anything but the logic for reverse already exist. Id atleast stick with that

[versed sun]

try Play from start , not Play

the secont time you sting , you are playing from the "end" and it cant do anything, so Finished just fires

[trim matrix]

I don't want finish to fire. The logic after 'finish' is how I end the sting when I do my single tap attack. After 'update' I check how close I am to 0 and once I am below 0.01 I end the sting that way.

I can use 'reverse' but will reverse work if I have already set my play rate to 0? Will it set my play rate to -1, or does it just do (current playrate*(-1))?

[gentle urchin]

Im not sure what it does internally tbh

[versed sun]

does anyhting happen in Update if you Play (Not play from start)?

[gentle urchin]

Perhaps it really is just playrate*(-1)

[trim matrix]

Well doing reverse with playrate 0 just crashed it xd

[gentle urchin]

As expected 😆

Why set playrate to 0 btw ?

Im not understanding the entire logic here, sorry

Stop is better

Wait for release... then reverse

Instead of creating custom logoc that does the same as the internal logic can do^^