blueprint

[cobalt gulch]

Attachments that they have chosen to use

[cyan kestrel]

let's say you have an instance editable array variable on a blueprint, with the elements being of some other blueprint type (just some simple properties on an object, not an actor) how do you make it so you can define those array elements in place, in the interface of the spawned blueprints, instead of having to refer to instances in the asset browser?

I think I've seen this done before but forgot how it's called. Might be a property flag or c++ only?

[maiden wadi]

You don't unless they're things like static meshes, or data assets. Things that are instanced like components, or actors, or UserWidgets, you set them through code after spawning.

[primal tangle]

hello guys I have problem I can't figure out. I can easily get OnComponentHit working on a staticMesh but with the same settings on

OnComponentHit doesn't work on SkeletalMeshes

is there something extra I need to do for SkeletalMeshes ?

[maiden wadi]

Sounds like collision primitives are missing.

[faint pasture]

Start be thinking how you'd structure a savegame. I'd start with a Weapon attachment structure.

[primal tangle]

I even tried ue4 mannequin still no luck

[radiant mural]

I seem to recall it having something to do with collision channels, Alek

[cobalt gulch]

How could I set this up?

[cyan kestrel]

If i understand correctly, data assets are blueprint structs now? I think that's what i need

[maiden wadi]

No.

[cyan kestrel]

oh they might not be the same then, but making a struct out of my array item blueprint makes it editable in place, so i found what i was looking for

[faint pasture]

Start with the struct.

Struct CharacterLoadOut
Weapon MyWeapon
UpgradesArray MyUpgrades

Etc etc. Those would probably be data table row names

[cobalt gulch]

Is the data table something you can make?

[willow cedar]

What is the way to see if a class falls under a parent class?

[faint pasture]

That's what casting is

[faint pasture]

Yes

[cobalt gulch]

So I can make each weapon with their attachments and set a specific attachment to true in the data table?

[willow cedar]

I think this was what I was specifically looking for, but that actually helps me understand it

Oh yeah, I guess I can just cast to a class

[faint pasture]

You would have a data table of all weapons and also a data table of all attachements, and a loadout struct would just say you have weapon 3 and attachments 5,6,7 or whatever

[faint pasture]

Just cast other actor to BPP Door

[willow cedar]

Yeah, I did that and it worked

[faint pasture]

You're trying to check if the thing is a door, right?

[willow cedar]

Yep

I have various doors under a door parent

[faint pasture]

Yup this is how you'd do it. Later if you wanna get more general you'd use an Interaction interface or an InteractionComponent to make it even more flexible.

[willow cedar]

Yeah, I have an interaction Blueprint interface, but I also apply it to pickup items too

So I just wanted to use that but pick the door specifically

I guess I could just have 2 interfaces

[faint pasture]

No, the whole point of an interface is that it's flexible.

Interact with door -> door opens
Interact with pickup -> gets picked up
Interact with character -> talk to them
etc etc

[willow cedar]

OOoh? Really?

[faint pasture]

The door itself implements Interact, the character doesn't care what interact does, it just tells the door that it's interacting with it.

[willow cedar]

Oh yeah, it adds items to inventory, and the door opens. They both do different things. I just wanted to add another way to interact with the door you cant with anything else

[faint pasture]

In fact it doesn't even know it's a door

[flat mauve]

Sure man. Thanks!

[faint pasture]

The charcter just calls Interact on TheActorIWantToInteractWith

[thin panther]

no problem :)

[flat mauve]

You make a pretty good point!

[willow cedar]

Yeah, I just wanted to check and make sure what I was interacting with here was a door. Thanks though. That helped me understand casting more.

Is there a chart on what inherits from what? Just for Reference.

[maiden wadi]

Not really. That's your job as a developer. Engine classes are very shallow as far as gameplay programming goes.

[odd ember]

you'll rarely need to go beyond UObject, but there's a lot of gradient in the hierarchy down from there

[cobalt gulch]

huh? you can't edit datatables? what if I want to set a character to have a weapon?

[odd ember]

you can, just not at runtime

[cobalt gulch]

runtime meaning the game is running?

[odd ember]

correct

[cobalt gulch]

but I want it so when you select a character you get a specific weapon

[thin panther]

so you would have a weapon to reference in the data table

and then use your selection to retrieve it

[cobalt gulch]

but couldn't I just set the variable to be a weapon name? it would be easier?

set weapon variable ak47

[odd ember]

you can still do that. you can get the data from the data table and use it

you don't need to set anything on the data table

[cyan kestrel]

apparently https://www.unrealengine.com/marketplace/en-US/product/low-entry-extended-standard-library works if you compile it for ue5, but i was wondering if there were other marketplace blueprint utility libs people like here?

I am mainly looking basic array/list functionality, sorting, map/reduce, filtering etc.

[cobalt gulch]

Would I have to create a seperate weapon variable for each character

So like each character has a primary and secondary variable

[odd ember]

your characters are all instances of the same character

if you're using inheritance

if you're not using inheritance

use inheritance

[cobalt gulch]

I kind of want it to save each character's primary and secondary weapon

[thin panther]

if each character has a set weapon then you would just tell them what weapon to have, if each character could choose, you may have a table of weapons, and filter by whatever each player can use

100% you are overthinking this

[cobalt gulch]

How could I create a weapon select menu for each character?

[thin panther]

the way i would do it, is get all of the weapons from a table, filter it for each character

then maybe display the weapon names and images

[waxen flint]

this is probably a very beginner question but
is there a difference between these 2 nodes if I'm hooking the right one up to a branch?

[thin panther]

for example

[cobalt gulch]

How could I filter the weapons for each char?

[thin panther]

could have an enum for each char

[cobalt gulch]

Enum? lol

[thin panther]

so my table could look like

soft ptr to weapon class
soft ptr to weapon img
weapon name
enum

and the enum would set which character can use that weapon

if you wanted to be complex you could set which characters could use it

if there was some overlap

enums are basically integers with names

[cobalt gulch]

Is there a way to kind of automatically create a list of all the weapons in a widget

So I don't have to manually create each weapon, attachment, etc in the menus

Because i'd imagine i would have to create a button for every weapon attachment then show/hide them for each character 😦

[austere ingot]

i created a blueprint actor named WorldSettings in project root, added a variable called test1, checked 'Config Variable'

where do I set up the config file to set the variable?

[fickle lichen]

This is a bit of an odd question, but is it possible to, at runtime, stream in a level that hasn't been added to the persistent level's sub-levels list?

As a platform for environment practice, I'm trying to make a UE4 version of the popular Gmod map, Elevator: Source

And I want each of the "floors" to be an individual level that, should it be chosen, is loaded in around the elevator before the doors open

[thin panther]

yes, for each of the filtered weapons, add a child button

[faint pasture]

No clue but turning GMod maps into standalone game prototypes is what I've done a few times. Currently got one based on ACF/Wiremod, one like DarkRP.

[fickle lichen]

If there's not a way to do it in Blueprint, there's gotta be a way to do it in C++

[trim matrix]

in unreal 5, how do I access a variable in blueprint A from blueprint B?

[thin panther]

why not just add them but make them unloaded by default

then load the ones you need

[faint pasture]

Same way as in Unreal 4.
Somehow get a reference to Actor A.
Cast it (if needed) to the class that the variable exists under.
Do what you need to.

[fickle lichen]

Got it! I was worried I'd have to do some C++ hacking, but there's a handy Load Level Instance function built in!

[trim matrix]

what do mean somehow?

[fickle lichen]

Because that would turn into a mess real fast

As a platform for environment practice, I'm trying to make a UE4 version of the popular Gmod map, Elevator: Source
And I want each of the "floors" to be an individual level that, should it be chosen, is loaded in around the elevator before the doors open

[thin panther]

how?

you just unload last level and load desired level

its really not that complicated

[faint pasture]

However you want. Line trace, event hit, event OnOverlap, whatever is the "trigger"

[fickle lichen]

Because I want the level system to be modular

This is an ongoing project that I want to return to whenever I want to practice doing environments

[faint pasture]

Specifically, what are you trying to do?

[thin panther]

ah that makes sense

[fickle lichen]

finally, someone who understands good coding practice and doesn't insist on recommending spaghetti workarounds!

[trim matrix]

im trying to spawn an item where the mouse clicked, its working but the object is half in the floor
I guess I need to increase the spawn position Z by the object's half Z-width

[thin panther]

your best way to do that would probably to store an array of level names maybe, and load it by that, or an array of level references

that way when you make a new one just stick it on the end sorta thing

[tawdry surge]

I'm trying to get a post process material to change one of it's values based on where it is placed. For some reason I can't seem to get it to assign a dynamic instance of the material. Anyone know what I'm doing wrong?

[faint pasture]

You can turn on "try to adjust location but always spawn"

[fickle lichen]

That's the plan! There will be a master list somewhere of all the levels; I just didn't want to convolute the persistent level any more.

Now I'm trying to read the position of a specific actor from the level before it loads so I can let the user offset the start position.

[faint pasture]

@trim matrixAlso if the spawn collision override doesn't fix it, you can GetActorBounds (so you know its size) after it's spawned and adjust its location.

[thin panther]

its nice to see ya coming into this with good practices in mind

it seems you have dev experience

[fickle lichen]

I come from a programming background yeah

[thin panther]

ye i thought so :P

[fickle lichen]

You'd be surprised how many people in various discord chats will tell you to bend over backwards and make a mess of your code to work with an API's existing functions rather than to write your own core functions.

[odd ember]

stick around there's a few us left

[wide thicket]

Hey I'd love some help, I have a python script that generates NPC dialogue, how could i fire it at runtime and get save the output as variable?

[thin panther]

you generally wouldnt with a python script

however if you dumped it into a text file

you could make a parser for it in c++

[tawdry surge]

Inkle can be used with unreal and json files to read in branching dialog.
Pretty sure there are similar plugins on the marketplace for reading text files in BP

[faint pasture]

Hey don't go lumping me in with you lot.

I happen to enjoy spaghet.

[jaunty crow]

How would I find out when the player has reached a location using the SimpleMoveTo node and then run a function, I'm trying to get the playing to move to a chair rotate and then play a sit animation but I cant find out when the player has reached the chairs location to play the animation

[cobalt gulch]

How could I create a loadout system where you press an arrow to switch weapon?

[potent salmon]

Have what may be a simple question but how on earth do I have it output a set float when i press the left shift key

[cobalt gulch]

But it goes in a cycle to the next weapon etc

[still rampart]

is there a Event Dispatch for when players are no longer grounded?

[faint pasture]

Key input -> set variable

[broken wadi]

You can make one by using the isFalling node from the CharacterMovement component.

[keen crest]

Anyone know if this is outdated? I followed as much as I could and can't seem to get it working https://gregmladucky.com/articles/unreal-engine-4-lets-make-a-camera-spline-system/

Camera never follows the path

[still delta]

Looking for some help. Finally got around to setting up some simple sprinting functionality, and it works like a charm with one exception. I'm not too sure (being a beginner) how to create an analogue version of the code (deplete stamina while button is HELD DOWN). As it stands, stamina is only depleted whenever I PRESS the button, which is great, but I'd really like stamina to deplete as I hold the button down as well. I figured Press - Deplete is better off used for something like dashes anyway.

Copy that. Yea i've tried a number of things but I personally haven't gotten it to work how I want yet. I'll keep looking. I tried using the timer but I think it just delays before running the function as opposed to calling the function to run on a timed tick interval

? (also i'm not sure WHERE this would go, so I tried using it within and outside of the function proper

[gentle urchin]

Start the timer on sprint pressed, if you have enough stamina to sprint. Clear and invalidate when you're out if stamina, or when the sprintnis released

[undone surge]

this is my take damage function but my armor was being drained below 0 so i put a clamp. did i put it in the rigth place? its my first time using it

[gentle urchin]

No

You want to clamp the result, not the input

But then again the brqnch afterwards doesnt make sense

If clamped to 0, it cant ever be < 0

[undone surge]

i see

thank you

[undone surge]

also i have layed blend by bone but when i want to play my death anim it doesnt work cuz its blended . how would i work around that

[unreal quail]

what's the name of the function that takes two transforms and an alpha and gives you a value between the two according to the alpha?

I can't find by looking for interp

lerp

nevermind 😁

[iron geyser]

I'm trying to make a bike in an unreal engine, but the bike falls to the side or does not move at all, how can I solve this?

[icy dragon]

Practice the pedals first

[iron geyser]

did not understand. my bike's wheels or itself won't move

[trim glacier]

any help ?

[ancient topaz]

Help me explain.
There is a GameMode, it starts first and you can specify what to load first. For example, the location of objects on the map or the number of ammo in the character.
I placed in it is this information. This helped me not have to create a special Blueprint that would take over this function.
All worked without problems while the game was on the PC platform.
But after I moved the game to another platform, Game Mode does not load first. I don't even see it loading at all, as the messages left on Tick don't show up, although Level blueprint calls to it go on and on.
Can you explain to me why this might be a problem?

[tawdry surge]

@trim glacier that function is the one you made in the player and is looking for a player class as the target. If you want to call a function from the widget, pull off the widget when looking for the function node (context sensitivity helps)

@ancient topaz Are you printing a message through a hud/widget or are you using print string?
Because level->gamemode->other stuff is how it always loads, regardless of platform. Multi-player vs single player could also cause issues if your not using the game state as a go between

[ancient topaz]

@tawdry surge i used printstring. I compiled Develper pak, not Shipping. My game is not multiplayer.

[tawdry surge]

I don't remember if print string still works in dev package or not

[hollow rune]

Would anyone happen to be able to help? Only bumping because I'm unfortunately still stumped and Google hath failed me

[ancient topaz]

Here state my own gamemode

[tawdry surge]

You don't have an override in the world settings of the level right?

[ancient topaz]

yes

[trim glacier]

thanks, i will give it a try later, if it doesnt work , i can provide you more info in terms of fixing that issue, would that be okay with you ?

[ancient topaz]

ok, maybe printstring is not working, but sound is all playing?

give me 10 minutes for compile

Hmmmmm....i used Game Mode, but for my target better used GameInstance?

[tawdry surge]

For level switching you could use game instance if you wanted

[ancient topaz]

@tawdry surge No sound 😦

[tawdry surge]

You can leave the sound in gamemode or the level blueprint

[sweet silo]

hi everyone how would you get a ref to all the static meshes in the scene ?

thanks

[icy dragon]

1. Including the ones that are components/part of a blueprint?
2. But why?

[sweet silo]

1. yes 🙂
2. To change materials of all the objects at once

maybe there is an easier method of course

[icy dragon]

What's the in-game context/reasoning for what you want to achieve?

[sweet silo]

i want to change all the materials to wireframe 🙂

[icy dragon]

Sounds like something a post process effect can do.

No getting all static mesh, just apply post process material effect on screen and call it a day

If you don't mind the inaccuracy of the line alignments, it's a much simpler setup.

[tawdry surge]

If someone knows how to alter a parameter of a post-processing material at runtime please share cuz I been playing with it since yesterday and I can't seem to get it to change

[icy dragon]

The same way you would alter parameter of a dynamic material instance reference.

[tawdry surge]

This fires as expected and the values are right, but the effect never happend

Can't figure out why

I've printed everything could think of and used breakpoints to step through. I've tested each peice individually (material, volume, trace) and they all work as expected too

[sweet silo]

ah great indea thanks a lot !

[tawdry surge]

So it's looking like the assignment of the dynamic material instance isn't really happening. The set of the "settings" struct is by reference so I'm a lil stuck on this

[icy dragon]

I managed to get it working, albeit I do it in C++ right away

[tawdry surge]

Yeah, I prefer to do BP off the bat for quick iterating but I guess I could make my own setter for this

Actually it might be possible to do it in BP if I make the blendables array with the material ref I want rather than assigning it to an already made one

I'll have to see

[sweet silo]

and how would you create a wireframe post process material ? i tried with my wireframe mat but didn't work yet 🙂

[undone surge]

what nodes do i use to set a boolean to true if i am in a certain distance to the enemy actor

[leaden dock]

weird when i launch the game it immediately removes the widget again

i have this in my PlayerController blueprint

in the log it says "Possess" "Unpossess" in that order

but i actually have the character possessed and can control the character

weird

[potent laurel]

you may need to "Call to parent" on the event

[leaden dock]

?

[potent laurel]

right click the "event on possess" there

and screenshot

(im not in the editor at the moment)

[leaden dock]

hm this also doesnt help

[potent laurel]

maybe you are unpossesing somewhere else then

maybe from another blueprint

[leaden dock]

but when i unpossess then how am i controlling my character then!?

weird

[potent laurel]

strange

[leaden dock]

i have my character placed in the world and set to auto possess player0

maybe that is causing issues!?!?

but why would it ...

seems legit

it actually possesses that character cause if i just disconnect the unpossess the UI shows up

so it seems like it calls the unpossess event although it doesnt even unpossess my character

wait maybe it unpossesses something else

hm nah it seems to actually really unpossess my character

while its still possessed xD

[keen crest]

Anyone know if this is outdated? I followed as much as I could and can't seem to get it working https://gregmladucky.com/articles/unreal-engine-4-lets-make-a-camera-spline-system/

The camera doesnt ever move but it does look at the player

[stone wind]

help pls no matter where i place the nodes it doesnt work plz help

[thin panther]

It might help if you describe what your trying to do and what it actually does

@stone wind

[late shuttle]

@stone wind your object reference is either being referenced incorrectly or being transferred incorrectly on the Event Hit input.

[thin panther]

Not necessarily

Event hit may not be getting called even

[late shuttle]

True.

Maybe his collisions are setup wrong.

[thin panther]

Thats why i say explain your problem and what your tryina do, if you put minimal effort into your request imma put minimal effort into helping

But also ots impossible to tell whats wrong from that little info

[spark steppe]

it's 99,9% that the collision stuff isn't setup properly

[tawdry surge]

This works for setting the post process material in BP. You can't alter the existing struct settings, but making a new one and assigning that to the post process works

[thin panther]

Huh thats a bit funky

[tawdry surge]

something to do with structs only being copies in BP

In c++ you can just change the struct directly

[trim matrix]

I have a map that I have divided into several parts. Should I create a separate asset chunk for each sub map?

[gusty cypress]

Is there a way to create a piece of reusable function that I can drag and drop in any blueprint but be able to change each instance of the function?

[trim glacier]

mw, i still haven't been able to fix this, any more solutions ? (trying to make that hp bar updates with hp)

[dawn gazelle]

That's something like an interface.

[gusty cypress]

How can I create an interface?

[tawdry surge]

@trim glacier you look like you are calling update health inside update health

[stone wind]

this is the player projectile and i want it to destroy the visai_char_ranged character when it hits it :0

[trim glacier]

mm lemme see the yt video again, maybe i miss stepped somewhere, i got 2 functions one in graph tab inside widget itself and one in player class

[tawdry surge]

something like this in the widget.

And this in the player

[trim glacier]

this is my widget

[tawdry surge]

Whenever you call update health it will

[trim glacier]

https://youtu.be/Rr9gYK50IuY?t=6977 timestamped

so he gets the heatlh widget ref and just node connect it to the update health

[onyx token]

if i have a child blueprint and i take an event from a parent blueprint-
But i still want the parent blueprint to run-

How do i get this orange thing on "Secondary Action" ?

like the orange event

[tawdry surge]

@trim glacier So you just need to pull off the widget reference in the player when you call the function to get the right one

[trim glacier]

yea, when i disable context it shows function there, but it just wont connect together

[tawdry surge]

Is player HP the widget

[thin panther]

Do they have simulation generates hit events ticked?

[tawdry surge]

if so, you want the 2nd one

[trim glacier]

both doesnt wanna connect, heres picture from inside the widget

[tawdry surge]

whats the error if you pick the second one

not compatible with what

[tawdry surge]

you need to cast to get a more specific reference or make the reference of class playerHP

[trim glacier]

so in between widget ref and update health i need cast ?

[tawdry surge]

I would simply make the variable of the right type

but you could

[trim matrix]

is it possible to copy ik chain from a skeleton to another one?

obv it has the same bones names

[icy dragon]

#animation

[trim glacier]

if I would cast, what should be the node name ? which cast to ?

[tawdry surge]

Player HP

thats what type/class of object has that function

[trim glacier]

perhaps ?

[tawdry surge]

that will work

once you connect the execution pins anyway

but I'd suggest just saving the refence as a PlayerHP object reference and then you wont need to cast

[icy pilot]

When you disable Start with Tick Enabled on an actor, should you also disable Allow Tick on Dedicated Server or will it not tick due to the first setting ?

[keen crest]

Anyone know if this is outdated? I followed as much as I could and can't seem to get it working https://gregmladucky.com/articles/unreal-engine-4-lets-make-a-camera-spline-system/

Camera doesn't move along the spline

[trim glacier]

@tawdry surge i managed to fixed it, and now everything is fully working , i just redid last 10 steps, i made mistake somewhere in the process of creating widget, thanks for help tho , much appriciated !

[tawdry surge]

you promoted the return to a variable before you set the class on the create node most likely

[stone wind]

? @thin panther

[thin panther]

I did reply

[desert flame]

Im getting a line trace to a wall to determine if i can slide down it (system that works), but how do i make sure im like, move to "10 distance" away from the wall? Of course moving to the impact point just puts me into the wall.

[vapid ibex]

I'm trying to make an one-way forcefied blueprint, that gradually slows the player the closer he tries get to the border of it so that the player couldn't get past it (but could freely walk out from the opposite side).
My current BP is as follows. In theory it should work, but in practice player speed never becomes zero and he can inch all the way to the other side, despite the impulse. What can be done?

[zealous moth]

@vapid ibex put a threshold and if around it, lower velocity to 0

That or just block the player altogether

@desert flame get impact vector. Get character location. Make new vector based on positions. Reduce it in length.

[desert flame]

Yeah but how do i reduce it by length? This was the closest i could think of

[ancient topaz]

@clear turtle Maybe You can help me? After packing the project, and then installing it, my own Game Mode, which I specified in the settings does not start. I checked the configuration settings in the project, in the file DefaultEngine.ini There everything is fine. But the game does not have my own Game Mode. There is also no my own Game Instance. I don't understand why, can you help me with advice?

You are all programming gurus, I apologize for calling you all out. But I'm already desperate.

[thin panther]

eesh dont ping all the mods

wait for help like the rest of us

to answer the question though, is the game mode overridden in the level? and it looks like that is the default game instance class specified there

[untold anchor]

we are at the top of the user list for moderation, not as easy to ping people for help, there are 70,000 people here on the server. I understand your desire for assistance, but do not ping the moderators for this. When we get pings, we come to the channel expecting trouble is happening. I advise you remove the pings from your message, this is a verbal warning, but next time, you will be striked.

[thin panther]

ok but that says different

and is the game mode overriden in the level

[ancient topaz]

Yes, I apologize.
I'm just desperate.
But that doesn't excuse me in any way.

[untold anchor]

@ancient topaz Ethan's ping as well, unless you have a prior conversation regarding this with him, and you're rehashing the conversation.

[ancient topaz]

This is old screenshot, i asked about my problem here before. I trying many I've already tried several guesses and rewritten a bunch of code, but I still haven't found a solution. I wrote about it on the forum, searched for similar problems, but none worked for me.

[thin panther]

show a current one then

i cant help off of old info

is the game mode overridden in the level, and whats the current game instance class set

[thin panther]

ok so onto the next one, is it overridden in the level

[thin panther]

no in the level

is the game mode overriden in the level

world settings

[ancient topaz]

No, it doesn't start at all. I purposely set the sound to be heard when the game accesses it, but there is no sound.

[thin panther]

in the level in the world settings is the game mode overriden

you gotta be in a level for all of this to happen

so show me the level

not code

[thin panther]

hm so it is the correct one in the world

and that's the first level you spawn in to?

[ancient topaz]

Yes

[zealous moth]

@desert flame that makes no sense. You can have directional vectors or coordinates. Here you are subtracting a direction from a location. You need to subtract 2 locations to get a direction and them you can either subtract a set amount or a percent.

[high fractal]

Does anyone know how to make a Niagara System loop via blueprints?
Just for a showcase Map

[thin panther]

does it work in editor, and just breaks in packaged game?

[ancient topaz]

@thin pantherYes

In PC platform is ok

But in another platform is not worked

yes, after package game

Not in PC

In PC is ok

[thin panther]

what other platforms are you tryina build for

cause if its consoles it seems you need addons for that

which you can only get via application + signing an NDA

https://www.reddit.com/r/gamedev/comments/fbssvq/porting_our_game_to_the_three_major_gaming/

macos can be another tricky one sometimes

@ancient topaz

[ancient topaz]

android

for example

i think it is glitch

or i need something to do extra

[thin panther]

https://forums.unrealengine.com/t/casting-to-game-instance-always-fails-when-packaging-the-game/392414/10

[ancient topaz]

@thin panther

[thin panther]

what are you showing me

[ancient topaz]

look, my gameinstance and gamemode have a name and way like this

Content/Zombi/BluePrints

[thin panther]

that doesnt look like it matches you ZombieGameMode

[ancient topaz]

hmmm... you right

i close and open this ini and it is right GameMode

it is very strange

Ok. I will try to compile

@thin panther

no,it is not working

[thin panther]

well you've just deleted it from the ini

try changing it to the actual game mode

i imagine it might be ZombieGameMode.ZombieGameMode

[ancient topaz]

without "_C"?

[thin panther]

not sure

try both

[ancient topaz]

@thin panther

no, this is not help

[thin panther]

then idk, try in #mobile

or #packaging

[ancient topaz]

Thank you for your help Bro!

[velvet roost]

Is there a way to change the target for a blueprint without having to delete it

[gentle urchin]

Target? Parent?

[maiden wadi]

They moved Ctrl+W to Ctrl+D in UE5. That feels weird.

[velvet roost]

This is from a blueprint I downloaded it, but I want to change the target to a different blueprint I have.

For most just refreshing it after I changed the default worked

Nevermind I found out how

[quiet shuttle]

For some reason my event ActorBeginOverlap is not triggering for cubes that I spawned on runtime. They go through a collison box and nothing happens. Any reasons why that is?

[gritty delta]

Setting post process settings for a camera appears to overwrite all parameters including those not exposed as a pin. For example, I do not have saturation exposed here, but it will reset to 0 when this is called. Is there a way around this?

[maiden wadi]

Runtime spawning shouldn't matter unless they're somehow spawning inside of the overlap. That might not run it. IF they're spawned outside, check their collision settings with some debug prints.

[quiet shuttle]

Sorry I'm still a novice at this stuff, how can I check debug logs?

[cobalt gulch]

How could I create a loadout system where you press an arrow to switch weapon?

It needs to go in a cycle of weapons

[maiden wadi]

You create them yourself with PrintString. Get a value you want to see and print it in the middle of your execution.

[dark crow]

It tells you what the problem is

If you want it in the actual BP just create the variables in there and replace them

If you found the solution don't delete the post so others can see it too 😒

@velvet roost

[stone wind]

Hmm I don’t know what U mean

Do u mean event tick I dunno how it works

[dark crow]

In the details of it there should be an option called like that

[stone wind]

Yes

I know

But how do I update collision with it

[velvet roost]

This is the problem that is popping up, sorry, deleted ti in an attempt to get a better picture. I broke the nodes and refreshed it and it fixed some, but not all. It isn't letting me change the target

[dark crow]

Ofc cause the reference is wrong

[stone wind]

U know?

[dark crow]

Cast to that class

[dark crow]

Didn't really follow the discussion but it should generate a event on hit if you check that and collisions are setup right

[stone wind]

Um

I casted hit to character then destroyed character but it didn’t work

[stone wind]

Here

[dark crow]

Does the Event Hit fire?

[stone wind]

Yep

I dunno what u mean

😁

[dark crow]

Is Event Hit actually called?

Have a print to confirm

[stone wind]

I don’t know

Ok

Yes sir

[dark crow]

Print String before the Cast

[stone wind]

Ok ty

Bye

[velvet roost]

I did cast it, but it still shows the error despite having them originally starting now with the new object

[icy dragon]

Move the out pin in that offending var getter node

[elder mango]

so I'm currently working on an fps game, how would I make it so I can switch weapons. Each weapons has different animations so how would I be able to do it?

[thick palm]

https://www.youtube.com/watch?v=IgR-PtaMloI I suggest following this tutorial series. Covers everything you need including switching weapons.

[icy dragon]

Not exactly BP, but you may want to take a look at the ShooterGame sample

[burnt canyon]

Anyone got a clue why getting forward vector of a capsule or arrow and multiplying it for a Projectile movement component Velocity does not send it in the right direction?

[thick palm]

Does it go in the opposite direction than you expect?

[burnt canyon]

some weird offset

[thick palm]

hmm. Is it spawning in the right location?

[burnt canyon]

Feeding it the raw forward vector * float for velocity

Yeah

nhvm im dumb

forgot to reset the rotation

its a circle so i did not notice 😂

[thick palm]

lol I was about to ask about setting rotations

okay

cool

[quiet shuttle]

What's the best way I can check if a specific class of actor overlapped another every tick?

[pine trellis]

running my game I see these red error messages in UE oputput but it doesnt give me an error when I stop it like it does for other errors and tells me what node needs to be fixed

what do these error mean if it goes red in the output log but never gives an actual error like it usually does?

[cobalt gulch]

How could I create a loadout system where you press an arrow to switch weapon?
It needs to go in a cycle of weapons

[formal bronze]

Performance question: If I have many moving spherical zones, what would be the most performant way for each zone to check if the player is within it every frame?
I know there's a a handful of methods like IsOverlapping, Spherecast, distance calculation using zone radius. But what would be the most performant?

[elder mango]

does it include switching animation bp?

[thick palm]

Not sure. I know it handles weapon switching.

You could simply use a boolean check to see if you are holding a specific weapon, or an integer.
Basically

If specialweapon_equipped is true, Use a different animBP.

or set animbp to animbpasset

[elder mango]

what blueprint thing changes the animBP?

like how can i change the animBP in the blueprint

[maiden wadi]

Really depends on how exact it needs to be. If you need to know if a hand is overlapping, that's more technical and should probably rely on overlap events with the player's mesh. If you just want to know if the character's center is in range, then a simple distance check based on sphere size is fastest.

[thick palm]

There is a node for it. You can try searching or if you give me a few I can find the node name

but I think its literally 'set anim bp' or something of the sort

[elder mango]

okok

ok i think i can figure it out

ty

[thick palm]

You bet. Sorry for being a bit vague.

[elder mango]

its fine i was also being a bit vague

[formal bronze]

Oh interesting I wouldn't have guessed that. I'll use a distance check then thank you!

[elder mango]

these are called nodes right?

like the blueprint block

not this one specifically

[maiden wadi]

Sphere overlap is the fastest check in any geometry because that's all it is is a distance check to a point. That's why character capsules are pill shaped, it's mostly the same. You can check it via a projection to a line and then a simple sphere's distance check. Distance checks are exceptionally cheap.

[formal bronze]

This is awesome to know thank you again for the detailed response!

[radiant mural]

Yes.

[cloud oasis]

yello is there any way to get an actor in the game mode so I can reference it anywhere

cause rn i have the main player character connected to my game mode

but i need to put the boss in there too

[cobalt gulch]

How can I turn a specific mesh into another mesh

[thin panther]

Set static mesh

What are you tryina do

[cobalt gulch]

replace a weapon in the players hand with a button widget

Im using the FPS weapon bundle

[thin panther]

So change the mesh

Or change actors

[cobalt gulch]

mesh

[thin panther]

Your weapons should be actors

[cobalt gulch]

i dont think i need to though

[thin panther]

You shpuld

You need shooting logic

[cobalt gulch]

because they dont need scripts

[thin panther]

They should

[cobalt gulch]

i have a script for this in the character

[thin panther]

Unless you plan to do nothing with them

That shouldnt be there

It should be in the weapon

[cobalt gulch]

How do I change the actor?

[thin panther]

The only thing the player should do is tell the weapon to fire and reload basically

You should get used to separating logic

[thin panther]

Soawn actor

Attach actor

[cobalt gulch]

should I just spawn the actor in the hand slot?

[gritty delta]

Edit: Nevermind. I just wasn't doing it properly. For those with the same issue, get the postprocess settings from the camera, drag off of that and then add a "Set members in PostProcessSettings" node. Expose the pins you want and set those variables. This will modify the current post process settings instead of overwriting all of them.

[cobalt gulch]

ugh im going to start again

is there a good guide for weapons?

[plain helm]

How to update Pak files?

[potent salmon]

Okay how does one shrink the collider capsule and have it shrink towards the characters feet? I am trying to use the Capsule half height but that shrinks it toward the center not the bottom.

[thin panther]

You dont

Thats hiw it works

Pivots in center

Just move the character up when you do it

[potent salmon]

okay thanks

[obtuse yoke]

I've set nav links in my level and am using the Move To task to make my AI move. Apparently since Move To gets called constantly it is causing my links to bug out. At least that's what I read on a couple forums. How can I fix this?

my ai character goes over the link but it doesnt trigger a breakpoint for some reason

[potent salmon]

@thin panther how would one do this?

[thin panther]

scale the capsule

move character upwards?

[potent salmon]

yes move up

[thin panther]

click the character and move it upwards

[potent salmon]

I need it to only happen when a key is pressed. So any other time the capsule is normal size

But i think i got it figured out. Thanks for the info

[faint pasture]

Press key -> change capsule size -> move mesh
Release key -> change capsule size -> move mesh

[potent salmon]

thanks

[potent salmon]

I have a slide!!!! lol thanks all for the info

[cobalt gulch]

How do i cast to this actor

[tight schooner]

Lazy man's approach is Get Actor of Class node, select your class type, and feed it into the Cast node's object pin

Will only work reliably if there's only one of that actor class spawned in the world

[cobalt gulch]

doesnt work

[tight schooner]

rip

[tight schooner]

So what does the Note say?

[cobalt gulch]

return value is already bp weapon master

[tight schooner]

Oh yeah, lol

Don't need the cast

Cast checks the object's class

But if you're getting an actor of class, the class is already identified

[tight schooner]

Cool screenshot

[cobalt gulch]

?

[tight schooner]

Get rid of the cast node

Use get actor of class

If it doesn't work then maybe the actor isn't spawned into your world

[cobalt gulch]

that doesnt work

what?

[tight schooner]

Idk jack about your project. Is there a BP Weapon Master actor spawned into your world somewhere?

[cobalt gulch]

no

[wraith violet]

Not a lot of experiance doing 3rd person, how tf do i get the springarm to collide with a wall and not just clip through. I'm not understanding how some of these settings work

[tight schooner]

Well, you can't work on something that doesn't exist

[cobalt gulch]

im trying to change the mesh of a weapon bp

but its in a different bp entirely

idk if that helps

[tight schooner]

Is this weapon actor spawned at runtime?

[cobalt gulch]

no

only with this script

its esentially adding a weapon to the players hand

[tight schooner]

So are you trying to spawn the weapon into the world at runtime?

[cobalt gulch]

yes

[tight schooner]

Then you have to spawn actor of class

And then possibly attach it to your character's hand

There should be a node for attachment

[cobalt gulch]

But i want to change the mesh of the weapon with a keypress

[tight schooner]

The output of the "spawn actor" node is what's called an object reference. You can use that output to manipulate the spawned actor.

[cobalt gulch]

but i cant f ing do that because of the stupid object input lol

[tight schooner]

1. Spawn actor
2. Attach if needed
3. Set skeletal mesh etc.

[cobalt gulch]

spawned it

but it doesnt let me change the mesh from the player

wtf

[wraith violet]

So the mesh is in the player BP?

[tight schooner]

Get "current weapon" and from that, get skeletal mesh, and then set skeletal mesh

You saved the output of the Spawn Actor node into a variable, which is good practice

By putting that variable on the graph, you can manipulate the spawned actor anywhere in your BP

[cobalt gulch]

so wait so

why does this work

[tight schooner]

The cast node is unnecessary in your screenshot

[cobalt gulch]

i suppose it just needed a reference on what to change?

[tight schooner]

Cast checks the class, but the class of Current Weapon is already known cuz you spawned it with "spawn actor from class"

[cobalt gulch]

oh i see now

[tight schooner]

Yeah

[cobalt gulch]

oh right so before i was trying to edit the bp not the actual thing i just spawned

got it lol

[tight schooner]

In the long term, you should learn about class hierarchies. Usually you have some weapon master class that has all the code common to all weapons, and then derived child classes that have customizations for each weapon type

Rather than one mega BP that represents every possible weapon

But for now yeah, if it works, it works

[wraith violet]

^^ Fundamental of OOP, definetly something thats a must know

[thin panther]

you still shouldnt be changing the skele mesh

different weapons behave differently

you should be making and destroying different waepons

like BP_AK or BP_AR15

cause they function differently

[tight schooner]

Yeah, class hierarchies like I said. Look em up

[thin panther]

^

alternatively you could just have a master class

so rather than

weapons_master

• weapons_rifle
• • ak47

you could differentiate those diffs with data assets

kinda like how lyra does it

but the whole reason ths doesnt work the other way, is cause the fundamentals of firing a shotgun and reloading it are very different to a rifle

[radiant mural]

Can anyone tell me the directory ~size of a Lyra install?

Ok, i will ask in the general room

[cobalt gulch]

ok

when moving left or right my character seems to jolt even though it's smooth when moving forwards

[graceful geode]

Im working with ALSv4 and i was trying to retarget the Skeleton to smthn else to try something, but it messed up all animations and now they dont work anymore. When I imported an anamition, it wortked fine, but all the other animations that were working in the playable character before, don't anymore. What can I do to try to get back all the animations?

[manic knot]

Is there something obvious I'm missing? The regular Input works (below) in this Character but the Enhanced Input Action only works on the Controller?? Am I doing something wrong or forgetting something?

[tawdry surge]

@thin panther any reason you wouldn't just change the anim BP in use, when you change the skeleton mesh?

[manic knot]

this was what I was missing btw

[prime cave]

guys i have having a problem while trying to make a main menu for my game

but the ingame hud i have is overlapping the main menu as well and i cant make it go

can anyone help me out here i am sitting in Support VC

[onyx token]

is it possible to scale these handles in a timeline?

https://cdn.discordapp.com/attachments/846520322642411570/965429482364211230/unknown.png

please say yes

[grand valve]

cant remember if in a timeline, but if you right click the keyframe, do you have the option for Weighted Tangents? I think if you check that, you can pull them shorter or wider...

[onyx token]

nope got nothing

unreal forums say it can't be done

was on the feature list in 2016

[tulip vale]

Is there a way to have a generic enum type as a input for a function? or bitmask integer?

like with the make bitmask function, where you can choose the enum type and than on the input select the according value 🙂

[worn zodiac]

Hi everyone, Can someone tell me if "Find collision UV" works on "Geometry Collection" Actors? ive been at it for day's and found nothing. Any help would be appreciated, thank you. BTW: im on UE 5.0 official release not preview

[trim matrix]

Hey i wanted to ask if someoneknows a efficient way to calculate the closest pawn from my position.
I had something but it would just get ur fps down to like 20 for a second where the calculation started

[trim pollen]

I am trying to take my camera control logic out of my level blueprint and put it into a pawn blueprint. It all basically works except getting the forward/up/right vectors aren't updating based on camera rotation

in my level blueprint, this works except I'm using "GetActorRotation"

and "AddActorWorldOffset" instead of "AddWorldOffset"

so seems like I'm not getting my camera rotation properly in my Pawn BP

[thin panther]

because its better to group the weapons individually, as they behave differently, not only the animation changes, but for a lot of weapons it changes firing patterns, recoil etc.

which is why you would separate them out more

either into individual weapon classes, or master calsses for each weapon subclass that differentiates based on a data asset or smthn

[tawdry surge]

If they did fundamentally different things maybe. Grenade launcher vs ray gun should be different classes. Shotgun vs rifle is a stretch. Recoil, fire rate, etc isn't unique enough to really require a new class imo

[thin panther]

shotgun vs rifle defo is unique enough

one fires many shots

the other doesnt

its all about separating funcionality for readability too

less spaghetti

you could just do all of this in the player character

but why

now if it was maybe the difference between a sniper rifle, and an ar15 i would agree

but otherwise if they function different, treat em different

[tawdry surge]

That's an extreme example.
But an enum for singe, semi auto, auto, and spread shot encapsulated in a function handles the spaghetti

[thin panther]

the reload on a shotgun is much different to a rifle too, well depending on the shotgun

[tawdry surge]

Thats a montage. Easy swap

[thin panther]

but also its just easier imo, say i have a data table of weapons, i would say its much cleaner and easier to have a soft ptr to a weapon, than otherwise

[thin panther]

no in terms of functionality theyre different

not just animation

rifles reload all of their ammo in a magazine, shotguns quite often have reload cancels so you only put one in a chamber

in a pvp game, which i think this is that is very importnat

[formal parcel]

@trim pollen i did similar with this but my camera is on a boom which is on a mesh

[fathom gull]

Hey, how do I change the color of the water? (like one of the 2 colors in the blueprint) , without changing the color of the foam, now when i try to combine them either the foam disappears or the foam color changes to the same color as the water itself, how do I keep the foam white but change the water color?

[trim pollen]

yeah I have this too just not in the screenshot since it's working correctly... the rotation is being set, but it's not being gotten correctly i.e. moveforward always grabs the same value

[formal parcel]

oh sorry read too quickly

[tawdry surge]

Right. They are usually anim notifies in the montage.
I just wasn't sure if there was a reason to avoid mesh swaps that I was un-aware of.
I do agree that having a data table of all the relevant information for each weapon is the best way to group the info and keep the swaps clean

[thin panther]

oh no there is no reason

it is a valid way to do things

its just preference

my preferred way is to subclass into diffferent types, and then go either classes for each gun, or data assets

and i also think it's the least confusing way to do things

which is why i encourage it

i either like to go Handguns, Rifles, Shotguns, Launchers as separate, or even things like Semi Auto, Full Auto, and Spread and projectile weapons

although i think the former is better

if i wanna find a specific handgun it will be a lot easier for example

just neater imo

not actually a dont do this its not performant thing

[formal parcel]

is there a smoother option for drawing a non-colliding beam between a static object and a fast moving actor? currently using a cable but it looks terrible at speed as it is jerky

[thin panther]

does it need to be physics simulated like a cable

if not you could just use splines

[formal parcel]

no physics needed

will check them out, thanks

[thin panther]

but with anything fast moving it may look a bit jerky

[eager agate]

hi guys i have a slightly very confusing question about splines. im working on a little nightmares style 2d platformer and im wondering how to find the closest spline location on the y axis. in the graph below the black dot would be my player, and the red line would be the typical result of "FindLocationClosestToWorldLocation", but my blue line is what i need as it would get the closest location on the y axis. is there any way i can get this?

sorry if i phrased badly this is very confusing

[thin panther]

not sure entirely, but you could try getting all the spline points then checking distance

which ever pline point has the shortest distance would be your closest one

[eager agate]

well its not actually the points, its really just the location on the spline

[thin panther]

ohh you wanna filter out the height

[tawdry surge]

Ok. I don't see much of a functional difference in pistols, rifles, and shotguns. Launchers, trigger able,etc.. I make into there own classes because they're code is different enough.
I like modular but not extreme encapsulation like Lyra. I find that project so confusing

[thin panther]

yeah there definitely isnt much of a functional difference between pistols and rifles

[eager agate]

well if you look in the graph i posted above, i want to find the closest location on the axis

i dont believe ue can do that

[formal parcel]

you'd be better off asking a mathmatician heh

[thin panther]

again its really just preference

[thin panther]

lol ue can do anything you just need to make it do it

[formal parcel]

yea thats just a math algorithm that is above my head

[thin panther]

its gonna be some custom math function that i cannot think of off the top of my head

[formal parcel]

theres probably not a framework call for it

[eager agate]

yeah

which is odd

[thin panther]

well not really

the whole point of a spline is that you dont want that thing

[formal parcel]

just search google its prolly not to hard to implement once you learn the fancy name for it

[thin panther]

otherwise you just draw a line

is there anything actually on the spline

or is it just a line

cause you could always just trace downwards

actually ye

[eager agate]

its a camera system basically

camera track

[thin panther]

trace downwards until your line intersects the spline

then you have your point

[eager agate]

but i want it to keep the y position of my player

[thin panther]

ye

so trace downards until you intersect

the intersecting point is where the camera should move

[eager agate]

i dont really see how that would work

ill make an example

so this is a top down view. i basically want the camera to keep the y axis of the player while also staying on the x and y axes of the spline

[thin panther]

traceing downwards

that gives you the position under the player

[eager agate]

dont believe this would work in a 3d scene though?

[thin panther]

you said it was a 2d game!"

??

2d games dont use a 3rd axis

[eager agate]

i apologize it is not

[thin panther]

well they do but its always 0

then i havent a clue

[eager agate]

yeah its very confusing

if anyone else has any possible ideas on how i could do this ive been trying to figure this out for hours 😔

[tawdry surge]

Pretty sure you can "get point along spline" and just loop through them all to find the closest one. Then use the return data to drive the camera

[thin panther]

Thats what i suggested intially

[muted sapphire]

how do I make a actor launch a projectile when i press a button, I already have it to when I press a button I launch a projectile

[eager agate]

im not looking for a point, im looking for the closest spline location on an axis

[eager agate]

ok seriously does anyone know a solution to this im about to lose my mind

[undone surge]

how would i change the olor of this effect ? can i do it here or do i have to do it in the texture/material

[tight schooner]

There's some way to make it a parameter and then you use Set Vector Parameter on a reference to the particle system on the BP side. I haven't used cascade in years though so you'll have to look up how to do cascade params

[undone surge]

how do i use the spawn emitter node with niagra? i think that is the latest system

[tight schooner]

You just... Use it? I'm not sure what you're asking

Probably spawn Niagara system or something like that

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Niagara/SpawnSystematLocation/

Or spawn system attached

Probably a way to spawn it as a component as well

[undone surge]

oooh so its spawn system and not spawn emitter. ok sorry most of the tutorials iwas watching had spawn emitter

ok thanks

[haughty axle]

Question: is there any documentation about WFC (wave function collapse) experimental plugin in UE4/UE5? or some sort of sample? trying to figure out how it works.

[mental trellis]

Is that a quantum physics plugin?!

[haughty axle]

yeagh 😄

[gentle urchin]

Manually iterate along the spline

[eager agate]

i found a way. it was very weird but i found a way

[mental trellis]

So there both is and isn't documentation on it.

[radiant mural]

😛

[haughty axle]

@mental trellis yeagh you correct, there is like some stuff, but just about functions

[mental trellis]

I think you missed the joke 😛

[gentle urchin]

I think it would actually be cheaper to spawn an ism or smth along the spline so that you could trace for that specifically (or not even trace, just get the instance at your x/y location

[radiant mural]

I think he was making more of a quantum physics joke than a reference to docs

[gentle urchin]

Schrodingers cat kinda joke

[haughty axle]

can we not dwell into schrodingers plugins? 😄

[radiant mural]

🙂

[mental trellis]

🙂

[radiant mural]

Since i see people correcting their spelling.. Schrödinger's cat

[eager agate]

i actually found a different way

[jaunty jolt]

How do i get the angle at which another actor is relative to my actor?
So i have an actor turned to the west and another actor presents itself from his right side. How can i know that he is coming from the right side?

[gentle urchin]

I didnt bother looking it up, just copied the other person. 🤠

[eager agate]

it was oddly simple for so much time spent

[radiant mural]

🙂

[fiery glen]

more of a procedural generation algo it seems

[mental trellis]

Is it always on a flat plane? Just using yaw?

Or do you want a complete 3d orientation difference?

[fiery glen]

https://youtu.be/2SuvO4Gi7uY

[haughty axle]

yeagh, but i don't want to build that by my own hands :), thought that plugin would be helpfull

[jaunty jolt]

for now yup its a flat plane. ok will try that

[gentle urchin]

DeltaRotator

[jaunty jolt]

Delta rotator? I put the rotator of the two actors in it?

[haughty axle]

@fiery glen i had some built long time ago, but as always looking for easy way 🙂

https://twitter.com/rbutrimavicius/status/1281096232052678657

Tashkas (@rbutrimavicius)

well it is working... for now :D #rng #randomgenerator #UE4 #unrealengine #blender3d #unreal #indiegame #gamedev #blenderart #gameart #leveldesign

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Twitter · Jul 9, 2020, 5:21 AM

[fiery glen]

wow, sweet!

[eager agate]

the new version has two splines, the one above is what the player position is located to. the spline track on the bottom is what the camera runs on. really hard to explain setup but at least it works

[haughty axle]

but it's super simple, built in BP's. god i will make that stupid plugin to work.

[jaunty jolt]

so i use getactorotation? How do i get where the angle of the other actor is presenting himself from?

[gentle urchin]

If they are the same "duration" then it works :)

[gentle urchin]

No, you cbasically compare the current rotaation of actorA to the findlookatrotation towards actorB

Just the start portion, nulling out pitch and roll,

Input being this

Sorry for the messy pics, from a different project with a different purpose (radar)

[jaunty jolt]

thank you. i see now. this is complex

[gentle urchin]

Let me know if you get it working

Had a lot of iterations on this (untill i found deltaRotator)

[jaunty jolt]

@gentle urchin its working. its giving me a number that i think its the angle. there is only one issue. is that the if the actor presents itself counterclockwise like at 11 oclock. Then it gives me a negative number like -15º. But the other side is +15º

wasnt it supposed to be from 0º to 360º ?

[gentle urchin]

Sweet, well done!

Well, no not really 😅

Do you need it to be ?

could always add 180 to the result, if that helps

[jaunty jolt]

thats exactly what i was doing 🙂

[gentle urchin]

And did that work, or are you getting weird results?^^

0 would show as 180 then, which prob is not what you want

[jaunty jolt]

im getting weird results. its not giving 360º at 11 oclock

[gentle urchin]

11 would be 360/12 *11

[jaunty jolt]

thats to give 11? but its not giving 360

[gentle urchin]

No its prob giving a little less than 180, correct?

150~

[jaunty jolt]

yup

it doesnt seem very accurate

i got 195 now

[radiant mural]

YOu have run into my worst nightmare.. 360 degree math in Unreal

I just hope you two continue talking in the public room, so others can learn something

[jaunty jolt]

i think i will go with the 0, 180 and 0, -180

that will work too

[gentle urchin]

Its the best way to go about it if you can :p

Otherwise you could check if the result was less than 0 and if so add 360 to it

[jaunty jolt]

nice. but im already working with the 0 -180. its working well. its just i was a bit ocd with the 360 🙂

[mental trellis]

(other actor location - my actor location)->make rotator

[gentle urchin]

FromX, no?

[mental trellis]

In reply to me? No.

[gentle urchin]

Hmm doubt its just into make rotator atleast

[mental trellis]

It is. That will give you the rotation from your current actor to the target actor (converts direction vector to rotation)

I mean, it may be called "make from x" in BP, I honestly have no idea.

[gentle urchin]

Make rotator just constructs a rotator

[mental trellis]

I was doing more pseudo code than actual node names. Sorry for the confusion.

[gentle urchin]

No worries

[marble tusk]

Is it possible to programmatically edit a curve? Either a curve asset or a curve variable if it's even possible to have a curve as a variable

[mental trellis]

Everything is possible. How do you think the engine does it? 😛

Diving into the curve code will be tricky, though.

[marble tusk]

Well I mean from a blueprint only non-code user

This seems like something which should easily be possible since you can already do it with splines, but I don't need full 3d with splines. More importantly though I need to be able to get a specific value at a given time along the curve which Splines can't do being completely 3d and being able to loop over themselves and all that

A curve is exactly what I need so I can ask it what the Y value is at any given X, but it seems the only way to do that is with a curve asset which can only be edited manually as a separate asset

[mental trellis]

I highly doubt BPs can do it.

[strong halo]

what could possibly make my onCursorOver events trigger only on collisions with UI preset?

[mental trellis]

Edit a curve, that is.

[undone surge]

anyone experience metahuman imports without hair ?

[gentle urchin]

Guess you could get into a curve and how its done on the backend

Just seem to be a sorted array of keys

And interpolation rules

https://docs.unrealengine.com/4.27/en-US/API/Runtime/Engine/Curves/FRichCurveKey/

[mental trellis]

It's entirely possible to get the value

The "Get float value" is exposed to BPs for float curves

[gentle urchin]

Yeah but for editing

[mental trellis]

Not for editing.

[gentle urchin]

Which is why if you made it from scratch in bp youd be able to edit it

[mental trellis]

The keyframe data isn't exposed to BP

[gentle urchin]

Requiring no cpp knowledge

Make your own struct for it then

[marble tusk]

You can make a variable which has all the data required for a curve, but there's no way to actually use it to make a curve or use any of the functions like that get float value from it

[gentle urchin]

Define "make a curve"

[radiant mural]

So you know, there is a whole room dedicated to UMG

[gentle urchin]

In editor details panel?

[marble tusk]

It only needs to be in-editor

[gentle urchin]

Guess i misunderstood what you were after then

Programmaticly edit a curve, without going into cpp, would mean recreating the curve class in bp, making the functionality yourself

Creating helper functions for adding, removing, adjusting keys

[mental trellis]

And that curve would not be compatible with the curve editor

[gentle urchin]

No, it would not

Youd need your own editor widget for that

😄

Quite a lot of work for limited use i would guess

[marble tusk]

I've looked into that, but even after the ton of work required there's still no way to actually use it as I need

I guess I don't fully understand why curves are only assets and can't be instance editable variables themselves

Like how you can have a spline in a blueprint and edit it to be different in every instance of that blueprint. I've done a lot with splines, but I need a curve in this case

I could probably even go as far as creating a curve asset for every single instance of a blueprint, but then I hit the issue again of not being able to have the blueprint edit the curve. I'd need to manually open and edit each individual curve asset separately which is not a viable workflow

[sturdy garnet]

hi i have made a niagara ribbon (purple) come out of my gun when i shoot it but it does not go far at all, i was wondering why this could be because i have its end point be where the line trace ends, the line trace hits the wall, this purple line does not. ty 🙂

[gentle urchin]

May i ask why you need a curve per instance ? Sounds like something that wouldnt be that different?

[strong halo]

yes, but the problem is, it should have nothing to do with the UMG. I need a mouseover event on the character, but it only works on status bar for some reason. Not on the mesh

[marble tusk]

The same reason why you'd have a spline be different per instance

[radiant mural]

I am not sure a 'mouseouver' event work that way.. perhaps you could use the.. i forget what it is called, but it Gets what is Under the Mouse Cursor

[gentle urchin]

Gotcha

[marble tusk]

I'm doing geometry scripting stuff basically

[radiant mural]

Ok, i was thinking of "Get Hit Result Under Cursor by Channel"

[strong halo]

apparently the issue is with pawn collision ignoring visibility in 5.0

[radiant mural]

@strong halo Oh. That's not good.

[strong halo]

switched to blockAllDynamic - started working

[radiant mural]

Nice

I'm out. have fun all

[marble tusk]

Maybe I can take a different approach. I could probably do fine with splines, but then I'd need a function to get the Y of the spline at a given X. I imagine that's possible with some math wizardry beyond my level of understanding

[devout forge]

Hello,

I am new in ue5/4, I have never dived deep into it but now I would like.
Do you know good video/playlist/channel about blueprints programing?
I found this one, I think is long enogh, start from the beginning, and fresh:
https://youtu.be/W0brCeJNMqk

I know it is not enough to watch only one video (I've been watching videos like this, for a long time).
I have a strong programing fundamentals, I have an msc degree, in computer science, and used unity for a couple of projects.

Is there any breaking changes in the UE5 blueprint API compared to UE4?

So if I found an older video, does it help to me to learn, or just give me confusion, because then I cant find those methods.

[gentle urchin]

I followed a lot of different content creators to learn, to diversify the input i was getting

There are many ways to do many things, and i often found that a combination of what i learned was what i deemed the best way

Then trial is error to fill the gaps, and much help from this place🙏

[devout forge]

Could you please mention some of them if you remember ?

[gentle urchin]

The only one i do remember is UnrealGaimeDev, they're starting to get pretty dated

[tawdry surge]

Dev addict does a good job. His multi-player rpg tutorial is pretty well rounded

[rapid sonnet]

I'm trying to rotate multiple cubes at once with a single mouse movement but instead of moving multiple it just moves the last one i made any help?

[gentle urchin]

Show some code

Sounds like you're not iterating an array of cubes for rotating them

[rapid sonnet]

There isnt any code

this is all it is

[humble flume]

Hey I am using simple pawn sensing in which when my 1 ai see to another he chase him but not doing so can anybody tell me how can I fix this

[rapid sonnet]

I fixed it i just turned consume input off

[gentle urchin]

Delta *0.02 should be reallllly slow?

Like... 360/0.02 = 18 000

Thats 18 000 seconds for one rotation

[rapid sonnet]

what?

seconds?

[gentle urchin]

My bad

0.2*

So 1800

Lol nvm

Ignore me

Its axis.

Not event tick !

Sorry 😅

[remote radish]

I have this AI MoveTo, but i cant add reference to self but it is done in the tutorial im watching

Any ideas?

[gentle urchin]

Sounds like the bp you're in is not derived from the pawn type?

Up in the right corner you can see the parent class

[gentle urchin]

Theres the problem

Should be pawn

[remote radish]

so this needs to be pawn

alright thx

[gentle urchin]

You can reparent it

[ancient topaz]

@thin pantherHi, if you want to know, this is was realy engine glitch, after restart PC all be ok. I talk about Game mode and Game instance.

[thin panther]

Oh thats good then :)

[undone surge]

i want to attach a camera to the muzzle socket of my weapon mesh

how would i do that

[sturdy garnet]

hi i have made a niagara ribbon (purple) come out of my gun when i shoot it but it does not go far at all, i was wondering why this could be because i have its end point be where the line trace ends, the line trace hits the wall, this purple line does not. ty 🙂

[modest monolith]

Do you know how to bind event to on hit?

For testing purposes they were bound on destroyed so was easier to do

now since they can ragdoll

I would like to end the jump when all enemies are moved or touched

but doesn't seem to work

anything wrong ?

[quasi wigeon]

Hey, i'm trying to implement guns to my game with third person character and i'm wondering, if i should "fire" bullets from a center of the screen or from a barrel of a gun that i should somehow move to center. What's the best practise for this?

[sturdy garnet]

@quasi wigeon you have the bullet fire from the socket (place a sphere in the barrel or just after) and have it spawn from that and you can do line trace bullet as camera im a noob but it works for now and ima keep it for a while

[maiden wadi]

Depends on the game style. Personally. I project the player's screen center point to a plane just in front of the actual character and line trace from that outwards. Works for both first and third person. Bullets are reasonably aimed towards whatever was hit but still spawned from muzzle of weapon. Animations interpolate towards aiming direction. Looks fairly nice except for a few rare moments that are mostly never seen except for middle of hectic times anyhow.

[quasi wigeon]

oh, yea, that's what i wanted to hear. Thanks guys 🙂

[fleet cedar]

Is this a bad way to approach this? A BP full of child blueprints as the pieces?

[cobalt gulch]

Hi

I have an issue with my fps character animations, when moving forward the character animations are fine, when moving left, right and backwards it seems to jump to the position and jitter about when moving

Idle is fine too

[faint pasture]

#animation

[thin panther]

Why not just have a manager that stores references

If theyre all child actor components then ye it can be an issue

[modest monolith]

😦

[fleet cedar]

Can you elaborate, @thin panther ? I'm not very experienced

What's the manager exactly?

[thin panther]

Well the way i would do puzzles like that is have a class, that holds references to puzzle pieces and monitors if theyre all correct

That way it would be easy to make new puzzles

I could have a 5 piece puzzle or a 500 piece puzzle ajd they could all work with the same code, just tweaking the variables

[fleet cedar]

And where do the pieces live? Are they just added as public variables?

[sweet silo]

Any good general bp tutorial apart from uelearn.com ?

[thin panther]

Ye

You just assemble your puzzle from pieces

[fleet cedar]

In the level?

[thin panther]

And then set the references in your manager

Yes

[fleet cedar]

Okay I see, thank you

[thin panther]

No problem

[sacred canyon]

if I have two collision boxes for overlapping the player, for example a water hitbox, if the player moves from one to the other, how would you work out when to tell the player its not in water anymore? because obviously end overlap will apply when you leave the first one even if youre in another

Im sure I thought of a solution to this once I just cant quite think how

[white wigeon]

how do you make a multiplayer compatible picture in picture

where more than one scene component can be active at any given time

[modest monolith]

How do I make this event happen whenever an enemy gets hit by an impulse or whatever ?

[faint pasture]

Event Hit -> Do Thing

[modest monolith]

I have to do it binding the actors that I spawn because I need to count them

[faint pasture]

What exactly are you trying to do mechanic wise?

[modest monolith]

I am making an endless runner, there's a tile where enemies ambush you, when I enter the tile they spawn and they get counted, I jump playing an animation and when you kill one of them they go -1 integer till it reaches zero, then my game state changes

[modest monolith]

Here the video

I've put Destroy actor for test purposes and the bind on destroyed event

but since they have ragdoll I wanna change that they get counted when hit

Do you see the screenshots ?

[warm quail]

How do you add this to a blueprint class? I am watching a tutorial but I cannot find an option to add such a thing...

[faint pasture]

Just add a scene component

That is a scene component named Target

[warm quail]

But this is what shows up when I look for target

Nothing...

[faint pasture]

Yeah because that's the name of the component in the actor. Look for scene. You can call it Banana or Bobba or whatever you want

[warm quail]

Ohhh I found it, thanks! It has a different icon than in the video lol...

[faint pasture]

Make sure you understand exactly what you're doing and aren't just following along verbatim.

[warm quail]

Yeah, I'm very new to Unreal and the weird concepts, I'm coming from using Unity which is very different

[faint pasture]

https://docs.unrealengine.com/4.27/en-US/Basics/UnrealEngineForUnityDevs/

[warm quail]

Wow I've actually been looking for something like that! Thanks a lot mate!! 😅

[dull sequoia]

Accessing variables and sharing data between different BPs is a nightmare, is there a plugin that makes thing easier?

[trim matrix]

@odd ember Hi do u know an efficient way to calculate the closest pawn

[odd ember]

please don't ping people at random, it's against the #rules

[hasty river]

Hey, have some looked into LyraStarterGame AnimBP sample and know how GetMovementComponent is called from PropertyAccess ?

[blissful grail]

The docs for UE5 cover this

https://docs.unrealengine.com/5.0/en-US/graphing-in-animation-blueprints-in-unreal-engine/

About halfway down

[hasty river]

Thanks, I will take a look.

[stray wren]

hi! I'm trying to create a drone type enemy and would like it to have accurate movement when flying. How can I get it to rotate properly while its moving left and right? Here's the blueprints i have so far for the movement and strafing. https://blueprintue.com/blueprint/a7d137d_/

[hasty river]

Still don't know, how the function it's called inside this Propert Access from the function. Tried to replicate this but it does not show my GetMovementComponent function that I created.

[blissful grail]

Click on the function and check to see if it is a binding.

[lost schooner]

Anyone know what this node is really called, hate how material nodes sometimes have a different name then what is shown in the actual blueprint....

nevermind i found it, always happens when i ask lol.

[hasty river]

It's binded and cast to movement component

[unreal wing]

Hey all! i had a problem where i get all of my collectables nothing happens. any ideas? (i made my own system so im not sure what I did wrong)

[fleet cedar]

I'm trying to spin and move these on their relative up axis. How can I determine their up access so that this works no matter how I rotate the board?

Add actor local rotation works but it doesn't lerp it nicely since it's just adding 90

[maiden wadi]

If this top part is actually running and actually lowering your count, then I would check your initial collectables left value. Also on that note, you rarely ever want to actually == that stuff. For systems that check if all are done, always do <= 0.

[silk cosmos]

Get Float Value. Plug curve into target and the time in the curve you want and it returns the value there

[unreal wing]

ok i changed it to "<=" but the true value still does not call the print string

[maiden wadi]

And is the -- code actually running?

If yes, what event checks the <= code?

[silk cosmos]

^

[unreal wing]

ya its running, the print string is being called on that one too

[cosmic nymph]

Hey would someone be able to help me with an issue I am having with the vehicle movement component please? The issue is when turning and having not throttle the car won’t turn at all but when you add throttle the car starts to turn

[maiden wadi]

If yes, what event checks the <= code? Try printing the current value to see if it's actually lowering and what it is and why it's not going <= 0

[unreal wing]

ok let me try that

[unreal wing]

heres what calling it, im in a level using the event begin play, might that be the problem?

just tried to make a custom event, that didnt work either

[blissful grail]

Not sure unfortunately, I just saw it in the docs myself. Can't dig too much right now, at work.

[maiden wadi]

Beginplay runs once. At the beginning. So you asked it at the beginning if it was <= to. Then just kept decrementing the integer. You're never actually asking the code again if it's <= 0.

[unreal wing]

huh, ok. so how would i ask the code to check if its <= 0

oh shit

i put it on an event tick and it worked

but i dont wanna use an event tick because well, its not good on performence

[maiden wadi]

Depends. If you just want a quick prototype. Check on tick. If you want it more correct and event driven. Make a function in GameMode that decrements the integer instead of doing it in other classes. After decrementing the integer, run the check code. Call that function from other classes to decrement the integer.

[unreal wing]

ok thanks dude

[sacred canyon]

come on someone must know this lol I feel like an idiot even asking

[late cave]

I do this... but in your case, it would be on End Overlap then...

[warm quail]

Got a slightly more complicated question. I'm using this simple blueprint I found to make a character (just a cube with pawn sensing) follow the player. It works fine, I added a Nav Mesh Bounds Volume and the cube follows the player.

The problem is that I want the player to be able to spawn in the cube by pressing Q and make the cube disappear by pressing Q again. I also made a blueprint for this, but when I combine the 2, the cube ends up not following the player at all. Does anyone know why this is and what I should change in the blueprint?

The first one is from the Cube and the second one is from the Third Person Character

[sacred canyon]

wdym? end overlap would tell the player its no longer in water, but what if it passed into another water body first?

[late cave]

I put all the colliders into an actor.

[faint pasture]

Whenever you leave a water volume, check if you're in a water volume

[late shuttle]

Hmmm... when I press "Browse to asset" inside of a Blueprint it does not bring up the Content Browser??? Anyone had this bug before?

[earnest tangle]

It never brought it "up" for me, it just put the content browser into that asset's location and if it was in a different window from the one I had active, I had to manually just activate that particular window

[late shuttle]

Yeah, not doing that either. I wonder if I have to reinstall UE4... :\