blueprint

[bitter arch]

I was creating a talking AI with chat windows, and for that I want to put a background image behind

[dark drum]

if it's in 3d space just put a plane behind them with the relevant material on them. If the camera moves you can even have the plane move with it if needed. (might get some clipping issues though.)

[last peak]

Create macros and functions for parts of your code that you re use

other than that i guess get used to it

[bitter arch]

I am new to Unreal Engine, so I don't have much experience with this. I tried some things using ChatGPT and YouTube. Wait ill share the screenshot of it

See the first image, which is a minimized screen, and in that, see the plane on both sides stretched out of the window.
And see the second image, which is maximized screen, and in the plane is small compared to the screen, and I can also see the world outside

if the background fits perfectly, then I can fit my chat window according to the background image to make it look good.

[last peak]

are you playing in standalone or in a new window ?

[crimson briar]

It is not much code, yes, but if you ask in general

• stuck in mud and being in the water seem exclusive. Create an enum for them instead (easier to later add other possible states affecting walking)
• with an enum you don't need branches, you use a select
• before select you can use a sequence. So the first pin of the sequence goes into the select - the select handles state specific info. The second sequence pin continues to the general code that should happen after each state, no matter which one it was

[bitter arch]

for looking or testing, i am just using a standalone window

[crimson briar]

If you don't know how complex something will get you can always change it later when there are scaling problems. No reason to worry about when you just don't know yet.

[last peak]

New window will never work, it doesnt properly scale ui elements no matter what you do

[dusky cobalt]

Use enum and switch state

[bitter arch]

If it works for standalone that's also fine, mainly that works when we packed the project

[trim matrix]

any ideas on how i can fix this? rn the issue is when trying to add the new ids to the struct’s string array, it dosnt save properly/set properly and on reloading is back to being empty https://blueprintue.com/blueprint/ordd0178/ https://blueprintue.com/blueprint/2v24ecfh/ https://blueprintue.com/blueprint/whwljuzl/

[dark drum]

I can't access BlueprintUE due to the online safety act. 🤣 (Not sure why it needs age verifying but hey) Can you share a few screenshots?

[merry mirage]

It's because of all the swear words included by disgruntled developers /s

[last peak]

#X#** this #X#** function and #X#** this #X#** event too, this #X#** function here is a piece of #X#** it adds data in our #X#** struct but it bareley works because whoever coded this is a #X#**

[trim matrix]

yea ill get a few once im back at my pc, thats so stupid n so funny that its blocked😭

[dusky cobalt]

So in here. Ok, you at the start assume that ever clip should be initialized. It's good. So for each pickup, you initialize it, but then
Startingroom of the clip if it's self? Roomamanger.. ok so It's roomanager checks if any of the clip should be added to that room count or something like that.. ok
and t hen there is 2 more checks IsClipActive (please fix namings of your bools)
If Clip Is Active AND the Player Save doesn't contain that clip then add to Clip Pickups for that manager I guess and Remaining clip count +1 for each.. okay.

On the second photo, you are literally just passing the array to be like Set This Array to This.

You need local variable for that array. Add to it. then plug that local array to the struct.

[tawny hedge]

can composite data tables be composed of other composite data tables or it needs the regular ones to work properly?

[languid swallow]

AI is scary. It managed to code C++ plugin for Blueprint so I can bind On Actor Move. 1st try, no mistakes. Exciting and scary.

[last peak]

That only works for simple code

Ai totally breaks for more complexe stuff

But oh well give it a few more years and it will also do that without problems

[maiden wadi]

The actual amusing part of this is that it only does this if you don't guide it. It's perfectly capable of creating and designing large complex systems. But you have to lead it step by step. It works out rather well if you yourself are trying to get into a concept without wanting to dig for the material yourself. Because you have to go slow and step by step, which makes it do the same.

[maiden wadi]

I would also caution this to some degree unless you're C++ familiar. Seen a few people get themselves pretty stuck. 😬

[last peak]

Maybe if you do baby steps
But outside of unreal for c it wrote me some of the worst code i have ever seen

[maiden wadi]

Like style, or logic?

[last peak]

For example it created me a 3d array for something that was perfectly doable with a 2d array, it didnt free any allocated memory and put no guards whatsoever in the code for malloc

[lucid ore]

Hi all. is there anyone who could quickly help me with a blueprint in vr. I am trying to make something work for a month now but I cant seem to do so and I have the feeling I am very close but since I have 0 prior experience with vr and BP's I would be extremely thankful if I could be in touch with someone to whom I can show my project

[crimson briar]

I'm using AI for JS and CSS at work, since I often need small things and can't be bothered. One dumb example was that the ai created a DIV element, but gave it a name LI. Then proceeded to treat it like an LI, breaking a bunch of stuff that was expecting list elements, not divs

[languid swallow]

I can see that happening.

[crimson briar]

So it works for selfcontained tasks, but you still need to check the code

[last peak]

Well whats your problem? Sharing your code here might already do the trick

[last peak]

Many vibe coders would say otherwise 😂

[languid swallow]

Makes sense. I guess ok as some introduction. I was just expecting it wouldnt be able to do even this stuff.

[last peak]

How is your game going btw i watched your stream here and there a while ago you were creating a farming game

[crimson briar]

Oh, I was thinking the name sounded familar. I started and abandoned two more projects since then. So it is going well

[languid swallow]

Yeah. I know that from other examples. Doing C++ and not knowing enough about will allow AI to slip through with bad stuff, huhu

[last peak]

Haha i cant count how many projects ive abandoned already

[lucid ore]

Yes so I have a simple cone I want to change the material of when I click on a swatch. I am using tags and Gemini pro 2.5 to help me step by step but ofc it gets it wrong. I had a ex colleague of mine who told me the approach he would use but I am confused with the lingo a bit. I will put the message here: "Trace a ray, check if it hits a component that contains the material, save that material as a variable, and then send it through the interface to the object that should change."

[last peak]

Are you still streaming?

[lucid ore]

I already tried to debugg and I know the trigger press works (left trigger from the oculus)

[crimson briar]

I'm planning to once I have base systems for the current project in place (chill tavern management). Buuut it is probably not the correct channel for this

[last peak]

You are like 90% there

[lucid ore]

What would you suggest I do to make it work for sure? I am using component tag since the swatches are attached to a rotating disct (which rotates around the player) and I thought that would be better than the actor has a tag since it would reference the disc

[last peak]

If i understand the code correctly what happens is this
If you press the button on your vr controller you call this function correct ?

[lucid ore]

I thought it would be triggered when this button is pressed since the "Activate Selection Trace" runs constantly through out the "game"

[last peak]

i see
Alright so to what material do you want to change the cone ?

Like do you want to click on cone 1 save that material click on cone 2 and apply that ?

[lucid ore]

so this project is a vr configurator, and I want to change the cone which is a placeholder to the material on the swatches. Since the materials will be specific for the configurator, I will scan them from the client and add them on the disc. Then when the player hovers over a swatch > trigger is pressed > the swatch material is applied to the cone

[last peak]

Where do you set up the material on the swatch?

[lucid ore]

these ones are imports from megascans since i still dont have the final rl materials

so they use the paretn framework for materials

and are all instances

my initial thought was that the issue could be the "SC_Selection_Trace_Left"

this is my actor selection BP

[dark drum]

You most likely never set 'OutHits'.

[dark drum]

Also, the access none message is because the static mesh component is null, not the material. You probally don't set this either.

[last peak]

All you really have to do is this

on your trace you check for hit actor (your cone)
Either by comparing the class or checking for a interface
if that returns true you have hit your cone
im not familiar with this node picture 1

In your cone you implement the interface in the interface you add a function to switch materials and a input fo your swatch

[dark drum]

Also what is this supposed to do? Is the 'Hit Actor' interface event implemented on the components its getting?

[last peak]

In your cone after the switch material functions from the interface fires you take the swatch reference get its material and then you set cone material to that

[tired pasture]

Comfyui came out with a tool that would be a great addition of ue5's user interface. Imagine not having to click and drag to seek around large blueprints, but instead just drag a small box that represents the current view around the large blueprint.

[lucid ore]

@last peak @dark drum Thank you both for the explanations but I am afraid this is beyond my understanding.. its a pity I got this project since i am the UE Cinematics guy in the office and now im in this jungle hahahha

[maiden wadi]

I understand the language just fine, and even I'm confused by what your ex colleague meant.

[last peak]

One second

[maiden wadi]

Might be okay. But I'm not sure how much real use it would get. Usually you can navigate to pretty much anywhere based on the function list on the left.

Material graph on the other hand. That could use that for sure.

[last peak]

First create the interface picture 2
You simply add 1 function in there and call it change material
Add 1 input there (either material or material instance or wahtever else your swatch material is)

in your trace function picture 1 you check if the actor you hit implements the interact interface
If yes you get a reference of your swatch and then you get its material
Now you call the function Change material and you give it the just extracted material from your swatch

In your cone picture 3, you click on class default and in the right details panel under implemented interfaces you hit add then you select your just created interface, compile

Now in your event graph you see the added interface function "change material" in your left side panel picture 4, you right click it and you select implement event

Now all you have to do is what you see in picture 5

[storm solar]

In unreal if you are saving your game and than loading it. You cannot save object references right? I would have to break that down into something like a struct and than save it.

[last peak]

yep

[maiden wadi]

No

[maiden wadi]

You can save object references. But it requires some very specific setup and C++ actor spawning or lookup to be able to replace them.

[storm solar]

right, but in general you can't really do it.
Gotcha.

Im useing BP only so i can do a work around for this.

[maiden wadi]

Then you 'can'. But it would be only to things spawned on the level. And you'd want to use soft object refs.

Er. Bad wording.

But it would be only to things spawned on loaded with the level

[last peak]

You need to serialize it 🤷

Guess you could save a id and relink later on

[maiden wadi]

If you use C++, you can save pointers. They serialize as pathnames. Which means if that thing exists when you put the data back, it points to an object.

The general trick is to respawn everything with the same names, or look it up if it already exists. Do this for every object you've saved.

Then now that they all exist, serialize the data back into them. They all exist, so all pointers saved will point to the correct thing again.

[last peak]

Is that faster than just breaking everything into structs? ngl its quite annoying to do that

[lucid ore]

Mannn thank you so so much you have no idea how helpful this is! I will try this now and see if it works! One last question since your line trace bp is a bit different from mine, should I change the last nodes as per your suggestion and keep the rest as it is or should I build it as you have it? I will let you know if it works but regardless if you ever find yourself in Berlin shoot me a message I owe you a really nice dinner!! ❤️

[last peak]

Just replace everything you have after the linetrace with what you see in the picture everything before that is fine
Lets wait with the dinner untill it actually works 😄

[maiden wadi]

How do you mean by faster?

Like to work with, or to process?

[last peak]

Right now when i want to save something i get the actor and then i pull all the data out of it
Location / transform
All variables that need to get loaded like current health, stamina, mana etc etc

If i could just save the entire ref that would spare me a lot of work

[tired pasture]

are you talking about a physical switch like a keyboard or something?

[lucid ore]

@last peak so I did everything as you suggested but I am a bit confused as to how I can add the blue swatch node on the line trace BP 😅

[lucid ore]

haha no its the material boxes in front of the cone, they are simple virtual material swatches

[tired pasture]

ah

[last peak]

You need to get a reference to your swatch

[lucid ore]

I also added the change material interface within the "does object implement interface" node*

ahh make them variables right

[last peak]

I dont know how youve set it up
What is your swatch? is it a widget? a 3d object?

[lucid ore]

its a 3d object

[tired pasture]

this is what noars talking about

[last peak]

Ok so
get all actors of class leather black

plug that right before you do change material

[lucid ore]

i feel so dumb with this 🥴

[last peak]

1 sec

[maiden wadi]

That's how the system works. 😄 The Savegame flag. Anything that has that marked in BP or C++ gets serialized. Anything from ints, floats, strings, names, text, pointers, etc.

And it works by just serializing the UObject. So if your stats exist in a single component for example, you'd serialize that component and then replace it when loading.

[tired pasture]

line trace by channel -> break hit result -> drag out from hit component -> get face index -> then right click graph and bring in the get material from collision face index node

there might also be a get material from hit comp also but i don't have ue5 running right now to confirm

[last peak]

he wants to grab his material from his swatch then change the cone that he hits to that material

[last peak]

yup there is

@lucid ore
Do you want to click on your swatch first and then suck out that material and apply that to the cone as in do you have several swatches or one single one ?

[dense forge]

Hey guys, I have some errors in my code that don't affect gameplay and I'm not sure how to go about fixing them. One involves one of the UI systems and the other has something to do with spawning players in.

[lucid ore]

yes when I click then it applies it

@last peak

[last peak]

Do you have 1 single swatch or several ?

That you change on runtime

[lucid ore]

no I will have approx 25 swatchews

[last peak]

Ah crap

[lucid ore]

yeah I realised that this would work with a single one

or that multiple will result in a issue

[last peak]

Ok not a big deal then do what Cecil said line trace by channel -> break hit result -> drag out from hit component -> get face index -> then right click graph and bring in the get material from collision face index node

How is your swatch actor setup does it have a parent ?
Swatch base actor -> leather black child

[lucid ore]

they do have the disc as a parent since the disc rotates on controll

and they are movable

[tired pasture]

you can then set an interface on the cone actors and have a boolean that enables or disables the application of the material change when you click on one of the swatches

that'll handle being able to set an arbitrary number of cones at the same time

[last peak]

He needs to check if what he hit is a swatch first after the trace, no ?

[tired pasture]

no, the cones will aways be listening for the event to fire off, which won't happen until you select a swatch

[last peak]

He has a linetrace on tick without any check

This was his original

[last peak]

ah ffs, how big is your project ?

And what unreal version

[last peak]

I guess he has a component with interface on the swatch and that executes the material change code ?
It confuses me hardcore

[lucid ore]

its only 2.38gb ue5.4

[tired pasture]

idk, there's a million ways this can be done. each one fitting the situation more than others

[lucid ore]

i apologise for the confusion :/

i am also so confused never done such projects

its driving me crazy

[last peak]

Its just that im not 100% sure how its set up

i only have 5.5 and 5.6 :/

Otherwise i could do it on my machine

[last peak]

Does your swatch have a component attached to them ?

• a interface

[lucid ore]

No nothing

[last peak]

This one is it added to the component in your swatch `?

[lucid ore]

besides the ac_actorselection which is used for applying a overlay material when hovered

[tired pasture]

the swatch being an actor, would probably have a static mesh or cube in the blueprint that the material is set to

[lucid ore]

yeah I tried doing it on 5.6 but it had a lot of issues with the TAA and everything looked like it had vaseline smeared on ot

[last peak]

Yes sure but what he does here
he gets the hit actor then he cheks all components who implement that interface

Then he calls hit actor in one of the components

[polar citrus]

Youll need to disable the "Play on Open" option within the Bink asset and manually open it whenever desired

[last peak]

Ok 1 SUUUPER simple and fast but dirty fix

Create a new interface, call it "swatch interface"

Add it to all your swatches in your case now to leather black

[last peak]

Tell me once youve done that

[lucid ore]

same interface as before or a default one

Swatch Interface

[last peak]

Create a new one and call it Swatch Interface

Dont add anything into it just a blank interface

Restore your first trace bp to what it was originally

[last peak]

This is where it continues

Open the interface where the function "hit actor" is stored it should be bpi user interaction

Add a new input to hit actor

Type material(or whatever your swatch material is)

[lucid ore]

the very first one right?

[last peak]

Yes

[lucid ore]

i added the interface to them all

[last peak]

The one you had originally

[lucid ore]

oky give me 1 min

[last peak]

XD i think that was useless sorry lmfao
But we should have it now ive send you on a goose chase

[lucid ore]

done

[last peak]

Now find this interface and open it

Bpi user interactions i guess

[lucid ore]

haha id take this every day rather than gemini telling me 20x per day "youre right to be frustrated, here is the final solution"

so i open bpi right

[last peak]

yes and you should have the function hit actor in there

[last peak]

Click it and add a new input

Details panel bottom right you have to scroll all the way down

[lucid ore]

yes what am i looking for

[last peak]

Inputs

You need to add a new input

[lucid ore]

yes but in the input

what kind

[last peak]

Try Material interface

[lucid ore]

done

[last peak]

compile and maybe name it swatch material

[lucid ore]

renamed and compiled

[last peak]

hook it up like this

[lucid ore]

ahh it crashed, ill redo the last step quickly

and when i do this i do it inside the line trace selection right

[last peak]

yes

[lucid ore]

alright give me a few minutes I am so sorry

sorry my heads a bit of a mess now, how do I get the change material node again?

otherwise I have everything set up as you reccomend

ahh you said it before

i check it now

[last peak]

I dont think you need it right now

Ah maybe you do

[lucid ore]

bcs now since i deleted the other things I dont have the blueprint interface change material

only the swatch interface

[last peak]

What we have now is Linetrace hit swatch - takes the material - sends it to actor selector component

Correct?

[lucid ore]

from what I understand yes correct

i am keeping the hit actor for the highlighting feature*

[last peak]

Lmfao

I wish i could take a look at the entire code haha 😄

Can you pack it for me? i cant send it back since i have to upgrade it to 5.5 but i would understand wtf is going on in the codebase

[lucid ore]

Yes I will

thank you so much

dev package or final build?

[last peak]

Dev

[lucid ore]

ah its failing

unknown error

i guess it sums up the whole project xd

[crimson briar]

To be honest if I got no errors on the first packaging of my project I would go buy a lottery ticket

[last peak]

Just add the entire project to a zip file

You dont need to build it

[last peak]

Right now im doing a rpg, i havent tried building it yet .... i dread the day that i have to for the first time 😄

[polar citrus]

At least cook it, thats what you should probably do intermittently after pushing changes and new features into the game

[last peak]

Or do you have a github where i can jsut clone it from ?

[lucid ore]

No i unfortunately dont :/

I will just zip the whole project with all its contents and send it to you

God bless 🫩

how should I send this?

[last peak]

Google drive ?

[lucid ore]

oky

[last peak]

or github or any other file hoster of your choice

[lucid ore]

alright gimmie a sec

[worn path]

Hello!

This may be a stretch since im using something from FAB but ill try and ask.

I currently am using this player, i converted it to top down from thuird person with controls and everything, but the issue is the player is looking at the ground.

I want the top down effect wherte the playuer ios constantly looking forward.

(This is like real early on its all placeholder assets from the fab item. its called ultimate chjaracters)

I can show the blueprints if needed just wanted to knwo if anyone had any initial ideas. I was thinking it could be something with the IA_look control but meassing around with it i cant figure it out. I also tried messing with some pitch variables but camera math confuses the heck out of me.

thank you guys!

[lunar sleet]

It’s probably the use controller rotation setting on the character. Disabling the Z axis one should keep your mouse from moving his head up and down

[worn path]

thank you imma find it! its hard with it being something off fab cause its amazing i just thionking im doingh weird stuff with it

[last peak]

For anyone interested in this problem it was just a missing tag on the cone he wanted to change

[fierce birch]

hello all im applying an impulse to my ai and its not able to apply the impulse I simulate physics and etc but its not working. when i take the root physicsbody out of my physics asset it applies the impulse which is weird my constraints are good as well. If anyone can help that would be appreciated thanks

[devout bane]

I can not get "AttachComponentToComponent" to work
I know for sure I am using that mesh and set it prior to attachComponentToComponent

[hexed cosmos]

how can i get something like radial force actor but directional?

[rose anvil]

Mh, what do you end up with ? Who is the owner of barrel and who is the owner of Carriage ?
Physics could be at fault here, I don't remember the exact conditions but I think enabling physics one Barrel after attaching will detach it for example.
You can try to tick "weld simulated bodies"

[devout bane]

Yha I turned off physics and tried weld simulated bodies but no good. I went with diffrent route. Thanks for reply.
I use GetSocketTransform of parent and set relative transform of target

[worn path]

ive figured out its an issue with the spring arm, the player just isnt ignoring the pitch when al;l of the settings are checked is the issue so i gotta figure out why

[rose anvil]

On tick ?

[devout bane]

No, its called on a function when cannon is spawned

[rose anvil]

I guess that as long as it doesn't move you're fine

[spice cradle]

@lofty rapids hi there

[lofty rapids]

?

[rough bobcat]

Hi guys i wanna make some tutorials but don't have any idea or topic, please suggest me some ideas

[lofty rapids]

i don't see where you actual add impulse

[fierce birch]

its not that because if I remove the root body in the PA it works just fine

but i have to have it so they can stand up right

[sand shore]

Well, what’s your expertise?

[lofty rapids]

why is component not self ?

[rough bobcat]

Multiplayer games/ replication, optimization

[fierce birch]

this is a component attached to a character, the component im passing in is the mesh

im getting the owner->mesh

[sand shore]

Not a lot of BP-focused tutorials on optimization. Maybe make a hypothetical indie game that runs awful and then have a tutorial series cleaning it up?

Along the way you can make much more constrained tutorials on BP features that you use while building or optimizing

[fierce birch]

again this all works fine if i delete the root body in the PA, so there is an issue somewhere

in the ragdollstart function I do this

[lofty rapids]

you have an npc ?

[spice cradle]

yeah

[fierce birch]

@lofty rapids works fine in the PA

[lofty rapids]

and what kind of grab ?

[spice cradle]

can i talk in private?

[lofty rapids]

lol

creepy

[lunar sleet]

It must be some proprietary npc grab system lol

[lofty rapids]

you want to make them do "things" to each other

ooh thas nasty

[lunar sleet]

https://tenor.com/view/we-dont-do-that-here-black-panther-tchalla-bruce-gif-16558003

[rough bobcat]

That’s actually a great idea! I really like it, I’ll definitely make a tutorial series around this. Thanks for the suggestion

[spice cradle]

yeah

[lofty rapids]

i usually talk in here, and thats a bit nsfw type of shit

[spice cradle]

i see

[sand shore]

Those types of grabs will usually require your models or art to be created in a way that supports it

What aspect are you stuck on?

[spice cradle]

good question, i stuck thinking about how the NPC will react on different sides of this "grab", because he will be pulled closer to the player like the gravity gun in HL2

[sand shore]

Yeah, any type of synced animation requires both actors to kinda be interped together

[spice cradle]

I said pulled but dragged is the more correct term

[sand shore]

But you probably don’t want them to look unnaturally floated

For that

[spice cradle]

yeah

i remembered now the whip mechanic of Indiana Jones TGC

https://tenor.com/view/indy-indiana-jones-harrison-ford-whip-the-great-circle-gif-480025783949960014

[spice cradle]

https://tenor.com/view/stan-twitter-monkey-sad-depressed-bored-gif-14632661802414689947

[lilac juniper]

Hey guys, when using blueprint structs I'll often run into an issue with unreal dropping saved instances of said struct when I close and reopen the editor if I make changes to it - ex: adding a variable. It's pretty much unusable. Am I doing something wrong?

[maiden wadi]

Can't say I've ever had an asset that was saved revert.

[fierce birch]

you using source control?

[lilac juniper]

Not for BP no

[fierce birch]

ahh i have issues with it doing that sometimes, thats why i make sure to have all my data in the struct, but unfortunately if the structs break you have to go in and refresh them

[lilac juniper]

I try to too, but well, sometimes things change, so that's pretty unfortunate

[peak vale]

hello guys, so anyone experienced with gasp?
I am not sure if I understand it fully or not but I am trying to achieve topdown with it so I want the character to follow the crosshair
my system checks if we are aiming if we are it calculates the look rotation of the player character and the upper body which is blended over gasp follows it yet gasp doesn't follow it I figured out that the character transform (which follows the crosshair) is handled differently from the root transform so I made sure that the root transform is equal to the character transfrom if we are aiming yet the lower body (gasp) still faces forward refusing to follow the upper body, the character and the root transforms resulting in abominational anims as the player is 180 twisted the rotation mode is controller desired rotation during the aiming state and orientation in the default state what do you think might be the issue?🤔

[fierce birch]

@lofty rapids i figured it out

[crimson briar]

I'm not sure if it still works, I myself moved to C++ structs. But one advice I heard was to never save the struct right away. Add you variables, don't save anything. Go to the level, launch PIE - it will force the editor to recompile changed blueprints. Then you can stop the PIE and save.
Supposedly it makes some issues with bp structs go away (it has to do with how the engine names bp structs, there is some weirdness to it) but not sure if yours is one of them.

[lofty rapids]

i have found it depends on what you do

like renaming will break it

but adding one won't break it

probably deleting will break it as well

because it's connected to a pin that no longer exists

[lilac juniper]

In this case the structs in question were just holding data in data assets, so, not an issue with blueprints that use them breaking, just a bunch of configured data being lost

'just' its a huge pain!

so I guess I'll move over to CPP structs too, kind of annoying though

[fierce birch]

@lofty rapids had to use a different function

[lofty rapids]

oh nice, looks cool

[lofty rapids]

launch character ?

[fierce birch]

instead of the radial impulse

[lofty rapids]

whatever works

[fierce birch]

Unreal treats the root physics body as the anchor for the whole skeletal mesh. Even if you set it kinematic or free, it acts as the reference body. Radial force functions will not propagate past a non-simulating or special-cased root. AddImpulse/AddForceAtLocation resolve bone names back through the hierarchy. If the root is kinematic, the solver often assumes “no motion possible,” so children don’t get force even if they’re simulating.

[spare atlas]

I’m trying to create a Mordhau mod for my server without turning it into a modded server I want it to be a server-side mod. Based on this brief explanation, I’m looking for a solution to my idea: I want to modify the widget shown in the pictures so I can add any text I want and also change its position for example, put it in the middle of the screen or scale it up. Is this possible through Blueprints (BP)?

I’m using the game’s SDK, which is an Unreal Engine 4 template that includes all of the game’s Blueprints.

[eager thicket]

is there a good way to get a black fade-in on startup so it covers up the popping in of the textures and menu UI?

I tried putting in a black screen on game instance init but it didn't work

[next hollow]

Its likely possible through BP, unless the game itself does some weird shit.
But, that also would need to be a "modded server", and not a "server-side mod"

Server don't know what widgets are, let alone edit the clients widgets.

[spare atlas]

i really need it as server side mod

without making my server modded

[next hollow]

Then, not possible.

I believe server build doesn't cook widgets, so can't pass values around, to even attempt edits.

Even if it did cook widgets, still no luck.

[spare atlas]

not possible with Replication ?

[next hollow]

Replication would involve a modded server

[maiden wadi]

Doesn't matter if the server did. The client still needs the widget.

[next hollow]

Cuz, base UE, and I doubt that game has pre-setup client side widget editing

Yeah, widgets are 1000% client side.
No way to edit widgets from the server, without a ton of prior manual work, for little to no gain (aka, no one would ever do it)

[spare atlas]

I mean, the client already has the widget since it’s built into the game engine, so I think it should be possible?

[next hollow]

Sure, but client needs to be told what to do, via replication.
Which would require a modded client, to know what do to with the servers modded replication

[spare atlas]

with just passing the values with replication as i know ?

[next hollow]

Can't just add new replication, both ends need it, which would need a modded client

If server tries to replicate something, the client needs to know of it.
Which would require both things being modded.

[spare atlas]

I tried replication in a BP I made to build pre-existing structures in the engine, and it worked perfectly as a server-side mod. So I’m assuming it would also work with widgets—or is it different when it comes to widgets?

[maiden wadi]

Widgets don't replicate for a start. Only Actors, and ActorComponents by default, or a subobject of one of the two that have heen explicitly designed to replicate.

[next hollow]

That sounds like you just spawned in things already in the game.
Which means the server was just managing them, not actually changing them like you want to do.

This "issue" applies to everything, you just have yet to run into it.

No matter how much replication you do.
If var A doesn't exist on the client cuz its not modded, then var A can never replicate to the client sorta deal.
Same with widgets, but more so flipped.
Server doesn't know of widget A, and client doesn't know of any new modded logic to edit widget A.

[spare atlas]

That’s kind of frustrating. i wanted to add a feature to my game server, but is there any other way to implement this idea without making the server modded?

[next hollow]

If the clients not modded, you can't do any form of replication.
So, you can essentially only call pre-existing game functions.

So, what you want to do is impossible in about every possible aspect

[spare atlas]

So, in the end, replication work well only with Actors. right?

[next hollow]

It can work with everything, except for widgets.
The other stuff just needs a bit of extra work, or is perhaps less used, depending on the devs.

But, type/ method of replication in this context of server only mod won't change anything

[spare atlas]

ok then, if i can’t change the widget itself, can I change the data inside it from the server?

[next hollow]

You'd need to find that out from the game itself.
May not be able to depending on where, when, or how it gets the data.

[dusky moth]

how should i implement damping using nodes in blueprint

[fervent lantern]

can anyone explain to me, why the rate at which an RTV updates has changed from 5.5 to 5.6? The first clip is from a world partition world, the second is from a regular level, but I don't know how to increase the update speed in the world partition world. This was not a problem in 5.5

[topaz goblet]

Under a UI widget, what is priority under the Input section?

[maiden wadi]

If you bind input actions to a widget, it'll try to use that priority for them. I think the Listen For Input Action or similar nodes.

[topaz goblet]

I figured out why my drag drop operation from a bag into the world is not detecting 'cancelled' or 'drop'
The cancelled isn't part of the original tile object, it's detected in the drag drop object. So, adding the drop cancelled call into the drag drop object fires... which doesn't give me all the stuff I'd expect.
Like, i have an actor component that acts as a world item, that can have it's mesh set, item reference, etc.

[topaz goblet]

Oh, okay, thanks!

[topaz goblet]

Struggling with how to address this.....
I think I understand the flow. Current widget detects drag / drop. Then, a drag / drop operation is created on drag, passing the required info to the drag / drop operation. During the drag, when I release the mouse button out in the 'world' it detects the drag operation cancelled. But, it is called on the drag drop item.
I thought.. Okay, I can just get the player pawn, spawn the item next to them. But, inside the drag / drop object, there is no 'get player', 'get controller' or anything.
Soooo, anyone dealt with this?

[odd kiln]

Hi all !

Can someone help me for Spawning actors/meshes along the circumference of a semi-circle please ?

I already know how to do this for a full circle but when I change my value from 360 to 180 it acts weird

I mean my "semi-circle" of actors is not in front of my main Actor but on the right side

[maiden wadi]

Sounds like you just need to rotate your starting point by -90 degrees.

[odd kiln]

I already tried that but it's not on the right side by "90" degrees exactly

So I need to rotate it by 108 degrees

The issue is that when I do that, it only works when I spawn 5 actors.

If I change this number by "3" actors, all is rotated

[real cedar]

are you using spline??

[odd kiln]

No, just maths

Here is the code, simple

What is weird is that when I change this 180 by 360 for a full circle everyting is perfect

But I only need half

[real cedar]

How many did it summon

[odd kiln]

3 actually

I want that if I spawn 1 actor, it should be in front of this "main" Actor

And if I spawn 2 actors, in front but in a "semi-circle" equally

3 actors etc...

[real cedar]

ohh i get it now

[odd kiln]

I feel like I'm missing some maths

Because when I change 360 by 180 degrees, I feel that I have to divide something

[real cedar]

i dont know if my solution would work but could you try starting loop with 0

and use +1 when passing index to multiplication

@odd kiln

or leave it i dont think it would do anyhing

[odd kiln]

It did something but now I have a new issue..

When I set the number of spawning at "1" it's well aligned

But when I set it to "2" for example, it goes in the opposite direction

I mean one actor is Up and the second is Down

I need the center of the "main" actor to be between the 2 spawned actors equally

Ok found a workaround. Now the issue occurs only when the number of spawning actors is "1" so I just have to use a "Select" or "Branch" node so when it's "1" I just rotate to "-90" degrees

Thank you all !

[real cedar]

How did you solve it??

[odd kiln]

Like you told me, I set the "first index" of the "loop" to "0" and substract my number by "1"

And then the only issue was when the "number" was set to "1" so I just set a branch

[real cedar]

then use safe divide

[odd kiln]

I used an "add" node

[real cedar]

ok

[dark drum]

I would change the math you use to calculate a point on the circumference of a circle. I usually use something like this if it's a circle (2 axis).

You can just clamp the angle between 0 - 180 if you want a semi circle.

[mental panther]

Not a problem but rather something mildly interesting and maybe someone knows the answer?

When setting the mouse cursor to the middle of the viewport in BeginPlay of PlayerController, it won't work unless you have a delay. Here's the interesting part:

• Using the upper method with a simple delay, will make it not work if your FPS is low.

  • When locking the game to 60FPS it works.
  • When locking the game to 10FPS it doesn't work.

• Using the bottom method with a timer (with the same delay length), it works regardless of what FPS

  • You can even put the delay length to something lower and it doesn't matter (putting the "Time" to 0.0 obviously won't work but you get the point, you can put it to 0.001 for example and it will still work, regardless of what FPS you have)

So how come the upper method breaks when the FPS is low?

[verbal kayak]

why montage set play rate is highly unreliable?

Looks like it works when it wants to

sometimes it triggers some time it doesnt. exactly same parameters and how I trigger it.

[verbal kayak]

and sometimes it works but triggers too late in the montage animation??

[dark drum]

It doesn't really have anything to do with the FPS. The actual cause is down to the view port size not being finalized (with everything still loading). This means the calculation results in the gotten view port size being 0,0 and will just place the cursor in the top left. 2 ticks is normally whats required for the view port to be finished setting up.

I cant remember if this is just an editor thing though.

[crimson briar]

In my limited experience with gamejam projects I can say UI very often behaves differently in PIE and in the built game. So it may very well be the case here.

[mental panther]

Yeah just tested a shipping build and here's what I found:

• The timer still works
• The delay doesn't work anymore
• Putting 2 "Delay until next tick" works the same as the timer in editor
  • Doesn't work in a build

[crimson briar]

If you really want to see what and why is happening, I would add a loop and prints to the delay. After the delay print the viewport size. Then add a branch and if it is 0.0, loop back to the delay

It would be weird if the delay itself didn't work

Also from my knowledge timers and delays are not affected by fps - at least not directly. Low fps can make them trigger slightly later than expected but they should always work

[dark drum]

Yea definitely a load order thing. Give me a few mins, I'll check how the Get viewport size function works.

Well this is a journey. 🤣

[barren tangle]

Hey, is there tool in UE to build story? I mean to know what has been seen what needs to be found? or it's just lot of IF condition somewhere in a place like game mode?

[dark drum]

Interestingly, it loads the GameUserSettings before creating the game instance. Anyways, it creates the game instance, of which it does it's thing and initializes all the subsystems. There is something to do with a dummy world as well which could be a factor. (Used until the world has actually loaded)

After all this it actually creates the viewport client which then triggers the local player to be created. Still not found at what point the viewport size actually gets set. 😅

[dark drum]

So like a quest system?

[barren tangle]

in a way. so for example: Zelda

1. You start in the bed > dialog
2. Need to go to the castle (everything else is locked)
3. at the castle > dialog
4. Continue the progression

So to be sure when you don't come back to the castle the castle dialogue run again.... is there a kind of tool in UE to achieve story ?

[plush hornet]

Hi all, I'm running this custom event off of my game instance and it works fine. But when I finish play testing it I keep getting a run time error. Does anyone know why? Thanks

[dark drum]

Im not aware of anything out of the box. How you would handle it can become very specific to the type of game you're making.

With a robust quest and save system you can pretty much get this sort of thing.

[barren tangle]

ok 😢

i will seach info about quest system 🙂

[dark drum]

Its because of the 'IsPlaying', the variable thats attached isn't valid. Most likely because the first time you call it, the component doesn't exist. You can do an is valid check on it and only check if it's playing if valid.

[dark drum]

I would recommend a uobject based one. You'll struggle to get the flexability you want using a structure based one.

[barren tangle]

any good video recommandation for that?

because first one i pick is based on structure 😄

lol

[dark drum]

Good question. I've not come across any myself but I've not really looked. 😅

[plush hornet]

Thanks I switched out the is playing for is Valid node and it works fine now

[dark drum]

However a few things you'll need to know about before attempting a uobject based quest system are:

• Actor Components
• Custom uObjects
• Hierarchy
• Event Dispatchers
• Soft References

As a quick overview, you'd have a quest manager (actor component) that would manage a list of active quests. (Custom Uobject) When a quest is added, it would create an instance of the uobject and call a function that would initialize it. This init function would bind to the relevant event dispatchers on actors so it can keep track of what's happening. When completed, it can let the manager know (via event dispatcher) so it can update it's lists.

You're custom quest uobjects can also have a function that is called when completed. When you create child classes, you can then override both the init and completed functions to setup the specific behavior.

When it comes to the UI, it'll just be pulling data from the manager.

When approaching it, you have to think of the quest system like an invisible thing that nothing knows about.

Having access to C++ can make some bits easier such as 'Edit Inline' and 'Instances' properties but still doable without.

[barren tangle]

I know all of theme except the custom uObject. What is hierarchy? What do you mean by that? A tree? Procedural approach ?

[lofty rapids]

boolean, ftw

[last peak]

A self made state machine would work for that

[lofty rapids]

my npcs each hold a state for the quests

in an array

[dark drum]

Hierarchy refers to class hierarchy. So this is where you would create a base class and then create children of it to extend/change it's behavior. (through overriding functions or change property values)

Custom uObjects is just a class using 'Object' as it's type. This is the simplest class you can make in the editor but there are some restrictions such as not having world context. (This can be added if using a C++ base class)

[dark drum]

adds the 517th bool

This is ok right? 😅

[lofty rapids]

lol bool hell

[lofty rapids]

yikes thats some serious conditions

[dark drum]

The sort of thing I actively avoid. 😅

[last peak]

What do you mean???? you wanna tell me 500 bools is bad practice? 🙃

[crimson briar]

For smaller size projects you could also use a gameplay tag container stored in one primary place. And add flags as tags for specific thing. FE ZeldasCastle.DoorOpen. Then you query the container if tag is there and act accordingly.
I would say it is better than random bools, but a system like pattym described will definitely work better with more complex worlds/quests

[lofty rapids]

i use a system which is an array of quests, that have booleans for accepted/completed

so simple

[dark drum]

I find that having things function without ever knowing there's a quest system works better.

Most doors would have some sort of 'Enabled' bool for if it can be interacted with. Having it start as false is easy enough, then having a quest change it to true when completed. From their the save system just keeps track of if its enabled or not. No need to check if x quest has been completed.

[lofty rapids]

for me adding quests is simple as adding an item to an array on an npc

done

but tbf it's not very complicated and is just a simple system

if you have requirements -> get reward

[dark drum]

I worked with a data table based quest system at one point. There was so much redundant data. Got a little confusing keep track of everything.

[lofty rapids]

my code for this quest system is ridiculously spaghetti lol

[dark drum]

I guess its just knowing the scale/scope of what you're wanting to do and using the most appropriate one.

[lofty rapids]

for me i just have ideas on how to program things

so it's not a well tested thing, just what i have made

[last peak]

The nice thing about gamedev is, no one gives a crap how the code looks like once its done

and it works

[lofty rapids]

yes and it's not open source

it's about the game, not the code

i think as long as it runs well

theres no issue

but looking back at the code and making changes right now is out of control

[dark drum]

That's where refactoring comes in. 😅 Spending a few weeks with a broken game lol.

[last peak]

https://tenor.com/view/no-noooo-british-cop-screaming-no-despair-crying-gif-14408871079120163442

me returning to the code i wrote half a year ago

[dark drum]

The 'What the f... was i thinking' moment.

[lofty rapids]

i keep saying i'll just do this and fix it later lol

but it works really well

it's just a pain in the ass to edit

[last peak]

thats a good one not the worst i have ever seen (or created) but top 10 😄

[dark drum]

I pray you never need to make an edit lol. For your sanity.

[lofty rapids]

yes its nearly impossible, takes me awhile to track down what is going on

[dark drum]

I can imagine lol

This is what my stuff normally looks like. Granted this bit of logic needs another pass. lol.

[lofty rapids]

ya that looks nice. I tend to keep making edits and jamming a bunch of stuff in together

most of my code looks pretty good, but the more complicated stuff i've never done before so its a mess for now

[dark drum]

Yea, sometimes you need to throw stuff down so you know what you do and don't need. Its just finding the time to redo it at a later date.

[lofty rapids]

i feel like i'll redo it when it becomes to a point i can't actually edit it (because i'm too confused) or when it becomes a performance issue

[tawny hedge]

burn it

[lofty rapids]

its the current state of my quest system, thats pretty much all the code for it

[crimson briar]

I mean, sometimes BPs can get more complex and maybe you don't know how to make them smaller/better. But you should at least try to make them somewhat understandable with a few tricks - like not crossing wires too often, keeping branches on different levels etc. It can improve bp's readability even if you have a bigger event:

[lofty rapids]

personally i hate having to click and drag

so i cram everything together

for me right now, the more i can see on the screen at once the faster things go

i'm not use to click drag, i'm use to scrolling

i'm also a lazy programmer so when i put something in the middle of a line of execution i just plop it above and connect it

i don't realign everything lol

it reminds me of basic with line numbers the way you need to insert

[dark drum]

This is where I would use class inheritance and hierarchy. Trying to add all the edge cases into a single functions can make things difficult to manage as you add more stuff.

You normally handle a lot of things with a few base functions that you override in child classes.

[crimson briar]

Yeah, I know. I posted it as an example of "bad but somewhat readable"

In this particular example I'm not yet sure how to design it better, since the objects the interaction happens with are different and can't inherit from a single class (one is an npc, one is a furniture piece, one is an item on the ground). There is an interface on their end to handle what happens to them independently but yeah.

But it works for now and covers all of the cases I need

[fast yew]

so I have a frustrating issue with unreal collisions in unreal 5.5. I've built a world with 2 rooms the rooms have collision volumes that should trigger when the player overlaps the room. the first room collision volume seems to only overlap if the player is jumping on the jump and then again when they start to descend. the other room never overlaps. when it does overlap the overlap function does the thing it's supposed to do. Everything else seems setup properly. I've set things like this up before but this specific object isn't doing the trick and I'm wondering what I missed

[barren tangle]

ok, so hierarchy i know it too. juste to learn the uObject and see if i will be able to use that uObject

on a blueprint approach because you sound like a c++ feature

[dark drum]

You can use them in BP only, just need to know how to work around not having world context. Not having it can sometimes be a good thing though lol. Just means you have to pass references to things they need into the functions.

[barren tangle]

ok, i think i understand the idea

[lofty rapids]

huh ?

[crimson briar]

On that note - is it possible to use your own Blueprint Library Functions inside UObjects? I saw some people saying it is, while I myself never managed to find a way to do it. I know the world context thing, but I would like to have access to some of my functions that are not world interactive (like calculating something, converting tags etc).

[lofty rapids]

so one of your collision boxes isn't working ?

[fast yew]

was something specific confusing? I have 2 volumes set to overlap they're the same blueprint collision box. the player starts overlapping the 1st box but only triggers the overlap event when jumping. the second one never triggers. both should trigger on first overlap because that's what the on begin overlap is supposed to do or in general does everywhere else it's being used

[dark drum]

Unfortunately not, a uobject requires world context to have access to function libraries.

[lofty rapids]

so your collision box is only firing when you jump ?

so you have two problems then

you should take one at a time

[lofty rapids]

so you can overlap any amount, but the begin overlap only fires when you jump ?

does it fire every time you jump ?

like you walk into it, and then jump it fires off, jump again, does it fire again ?

also just put print strings on the events

check when its definately firing

[fast yew]

the second box never fires. it prints a string to screen so it's easy enough to see what's happening when it fires. on start it doesn't fire then on jump and then again when the velocity takes you back down it fires again. I can leave room 1 and go to room 2 but room 2 never fires even with a jump. but if I go back to room 1 it still fires on jump.

[lofty rapids]

your doing too much at once

[lofty rapids]

so room 1 fires every time you jump ?

[crimson briar]

Sounds like it could be a scaling issue but I guess you already checked it? You could go into PIE, decouple from the player and then enable Collision display (Show -> collision in the left corner of the play viewport). Maybe something scales the volume by accident during play. Check if the player and the Volumes are as big as expected

[lofty rapids]

and it fires twice when you jump ?

[fast yew]

yes room 1 fires every time you jump. and then again when the direction changes. but it's totally an onBeginOverlap it's not really doing a ton of stuff. it tells the camera how big the room is which should only happen when you change rooms.

[lofty rapids]

so if you put a print string directly on begin overlap

with no other code

it fires off every time you jump ?

check with a print string only

[lofty rapids]

it sounds like the bottom of the collision is higher then the character

[fast yew]

it's not a very robust function. but yes it fires on jump and then again when the direction change comes and you start to fall

the player is a normal capsule collision sprited character

[lofty rapids]

so it fires twice ? and you show the bounds in world with a ss ?

thats odd it fires twice on up and down

sounds like it's small on the z

[lofty rapids]

and so its printing your character both times i would imagein ?

[fast yew]

yeah it's super weird. it's depth is 150 units it's bigger than anything else in the world because I thought it could have been too small as well. but that didn't change anything. there's other collision volumes on pickups that trigger the overlap when they begin properly so I don't think it's the player. it has to be something about the room collision

yes it prints the player name twice on jump and if you break it's when the direction change happens which feels important somehow but honestly I don't get what I setup wrong about this one specific collision instance

[lofty rapids]

show the volumes in world with a ss

as far as super weird

programming is about logic, so hopefully something logical is happening

[lofty rapids]

twice on jump could be both your mesh and capsule

print the display name of the component

other comp

or if you have some other collision boxes

could be anything ig

[fast yew]

the othercomp is the capsule the OtherActor seems to be the character class. which I know because I cast it to call a custom function

[lofty rapids]

it prints the capsule twice ?

[fast yew]

no the first object seems to be the blueprint for the player

[lofty rapids]

your printing the actor, print the comp

other comp

[fast yew]

if I print the come it prints the capsule name

[lofty rapids]

twice ?

[dark drum]

print the name of 'Other Comp'.

Edit: never mind engage already asked lol.

[fast yew]

that gives me the capsule every time

[lofty rapids]

so you still have not show the collision in world

to see the bounds

[fast yew]

it's ok I said I did it too but it's good to idiot check as I obviously skippped something or wouldn't need help because this seems like an unreal 101 issue that I don't understand why it happened

[lofty rapids]

^

[fast yew]

I'm sorry I don't follow

[lofty rapids]

show the bounds of the box

[dark drum]

Show the trigger box in the world.

[lofty rapids]

make it visible and not hidden in world

[fast yew]

it's the oversized blue box around the tilemap

it displays the same in game if I pause and eject from the player controller

so it's 150 units in Y

[astral granite]

I think it’s just a simple collision issue. It’s probably using a blocking object channel on the capsule collision, you just need to set it to ignore.

[lofty rapids]

well these are horrible images tbh

[fast yew]

sorry. the black background doesn't make it the easiest to capture I guess I could increase the line thickness and set an easier color to see

[lofty rapids]

which is z ?

[fast yew]

Z is height

[dark drum]

Instead of sharing an image like the first one, share one like the second. We need to see the whole picture.

[fast yew]

if I took the picture from that far away it's too hard to see the volume but ok

[lofty rapids]

yes but in the image is z left to right ?

[fast yew]

no X is left to right as it is in image screenspace

[lofty rapids]

ok i see

[astral granite]

think the best solution for this is to create an object channel in the project settings, something called 'Trigger.' Then, set the capsule collision to ignore the Trigger, set the character mesh to trigger = true, and change the collision object in the TriggerBox to this new object channel named 'Trigger'.

[fast yew]

and those red collision spheres are pickups that do work properly

as in they generate overlap events on the player pawn and are world dynamic objects. the room is world static but only captures pawn overlap on jump for some reason they're both normal unreal collision volumes

[lofty rapids]

so are you just using these to trigger when you get to a point ?

[fast yew]

I'm trying to clamp the camera's movement to the room, I calculate the size of the room based on the tilemap size. the numbers all check out right

[lofty rapids]

is your y thick enough, make it thick. i'm guessing you just want to trigger when you enter/exit the area ?

[fast yew]

the Y is like 5x thicker than anything else in the game

[lofty rapids]

i mean are you constraining the y ?

[fast yew]

the character can't move in Y because the game is 2d so it should always be inside that box because it's thicker than anything in the game

[lofty rapids]

can you show it while the game is running ?, maybe it changes

[fast yew]

the character starts inside the box. I had a different setup that did register the overlap properly but for some reason unreals orthographic camera needed this other setup in order for setWorldLocation with a clamp to function properly

[lofty rapids]

do you alter this box dynamically in any way ?

[lofty rapids]

if it starts in the box it won't fire begin overlap i'm pretty sure

untill you leave and go back in

[fast yew]

this is what it looks like in game I changed the color/thickness so it's more visisble

[lofty rapids]

show the bottom

the whole side would be nice

[fast yew]

capsule radius across the board is 35, the Y is 150

[lofty rapids]

^

[lofty rapids]

and if you just jump like where you are does it fire ?

[fast yew]

it's around 4x /5x bigger than any other volume in the game. if I jump in that room it does fire twice as formerly stated. then if I go into the room on the right it does not fire on entry or jump but going back to the first room it fires on jump again

both rooms are separate blueprint objects if that matters.

[lofty rapids]

anywhere in the collision box when you jump the begin overlap fires off ?

[lofty rapids]

do you have any code with isfalling ? other then probably your animation ?

are you changing collision setting dynamically ?

[fast yew]

no just on the animation blueprint which uses the paperZD plugin.

the collision box extents are figured out in the blueprint constructor based on the size of the tilemap.

there's a box for camera extents and the player collision volume. the camera extents box gets the correct values in it because when you jump the camera clips properly

I didn't do Y yet because why bother if the overlap isn't working in a way that's testable

but the camera does track the player

[lofty rapids]

wdym you have a collision box inside this one ?

[fast yew]

it's not inside there's 2 but the second is disabled

the second is just used to determine the absolute outer bound in screen space where the camera should clamp

[lofty rapids]

i feel like these are conflicting

your probably jumping in and out of this other collision

[fast yew]

then you take it's outer bound in world space +/- half the camera's view

[lofty rapids]

which would be like the only thing i can imagine

you have another collision that surrounds the player ?

is what your saying right ?

[fast yew]

yes, but it's not set to generate overlap events. actually it's set to no collision as it's type. it's just used to figure out scale

[lofty rapids]

move it away from the character

does the begin overlap still fire when you jump ?

[fast yew]

oh like way far back in Y because that number doesn't matter. I'll try that

it did not make a difference moving it -110 units on Y but did move the box out of the way. the extents scaling was still the correct numbers though.

[lofty rapids]

it's still firing when you jump ? show the character with its collisions and components

also remaking the thing will help to find if it's just bugged

which i unlikely but possible

[hidden cape]

Hi, just a quick question; I have a pawn actor car, I want a turret cam and a car cam, is it better to lerp between cameras or have a single cam?

[fast yew]

yes it still only fires on jump. I could try to rebuild the whole thing. too bad there's not a way to force unreal to recompile a blueprint properly.

[lofty rapids]

define "better" ?

[lofty rapids]

i mean just try to redo that one collision

see if it's fkd

[hidden cape]

easier to deal with, more performant?

[lofty rapids]

"One camera is more performant than two"

but two is not so bad like 10

to deal with would be similar to deal with i think one way you will have to lerp transform, the other you can just view with blend it's a node

[hidden cape]

ok, umm... hmmm thanks...

[lofty rapids]

it's imo a lot easier to just have two cameras and blend them

[hidden cape]

k, thank you

[lofty rapids]

or atelast if you are using transforms have a reference actor or something so you can change the points

[fast yew]

that's actually part of why I switched how I was doing it I had one camera in every room setup basically the same way and it switched cameras when you moved rooms but the performance hit was massive as the level grew. go with 1 if you can any time you can

[hidden cape]

is it view target with blend?

[lofty rapids]

yep

[lofty rapids]

i see so your trying to when you are in a room, set the camera to that specific point for that room ?

[hidden cape]

I have a 360 omni directional car that I need a turret with that follows the camera... its been for me difficult to switch states of the spring arm back and forth

thats why I was asking about two..maybe it would be easier

[lofty rapids]

geez big world, cool car it can drive in any direction

[fast yew]

yes so that it stops tracking the camera as you get closer to the outside of the room then switches the camera to the next room when you leave. I had a different object that did the overlaps properly but it had 1 camera per room and didn't want to move the orthographic camera properly as it wouldn't clamp no matter what I did. now it clamps if I can get it to detect that it's in the room. rebuilding the collision volume no no longer registers on jump or on overlap begin. wait now the jump trigger is back. no idea why.

[hidden cape]

thats where this whole orbital turret prob comes in

[fast yew]

the fact that it went away on setting up a new collision box then showed up on jump suggests it's a setting on the box that I didn't configure properly though, however I've no idea which one

[vapid oar]

Hello everyone
I'm doing some sort of excavator, I modeled a skeletal mesh on blender, with 1 bone per mechanical part
I tried to use the animation BP to control the rotation of the bones, while having a collision response. But it doesn't work...
Either I set the physical bodies to Simulate and I loose control over rotation
Or I set them on Kinematic, but I lose the collision response

I'm stuck on this for several weeks now...
Is there any workaround or a totally new way to solve this issue ?

[fast yew]

you could try using three sets of bones. keep one as the physics object and the other as the controlled bones then interp between them as you need. classic space switch

[lofty rapids]

it's really strange that it would do that, the only thing i can think is you have something around your character position that is overlapping as well

[fast yew]

similar to how you would setup an IK/FK rig for legs in animation. one physics rig the other player controlled the third controls the asset then you control which rig you pull info from

[lofty rapids]

and your jumping in and out

but idk, could be anything

its also really weird it fires off twice

[fast yew]

yeah it's super weird, for all reasonable logic it seems setup properly. the player starts in overlap which worked fine with the first camera system. the double fire kind of makes sense because those are separate events in the player controller but they shouldn't be going into the overlap generation

but overlap events work fine everywhere else they're used

[lofty rapids]

and if you make the box extens on the y like 5000

and the z like 5000

does it do the same thing ?

[fast yew]

the z is the size of the room. but I could try to do it that way on Y

[lofty rapids]

i mean x is left/right right ?

z is up down

i would just exaggerate them

y and z

just to test

[hidden cape]

just realized my car doesnt backflip...this must happen

[fast yew]

all unreal cars love a backflip.

[fast yew]

the height calculates per room. it's not as easy to detangle. it's also way more than all the characters

it's still triggered on jump. which is so weird.

[lofty rapids]

ok so you know it's not the y, you can't scale the z ?

[fast yew]

I could I guess. I calculate the size of the tile map on construct. then the room entry collider is 1 tile smaller than the room on all sides which is easier to get because of how the box extents scale works from the middle of the object

I could just disconnect it I guess and make it 10K or something

[lofty rapids]

so player confines box is the one thats triggering ?

[fast yew]

oh so this is weird/ fun. disconnecting the Z stops it from the jump triggering onBeginOverlap. but it's way too big to pack the map properly

[lofty rapids]

so theres your issue

the z is to low most likely

[fast yew]

yes the player confines box triggers on room entry. and if I make the values of the player box super high/wide it does trigger but not on game start. the Z is the height of the room

well the height of the room minus one tile the whole way around

[lofty rapids]

yes it won't on game start, you have to check if overlapping

because your already overlapping

so begin overlap i'm fairly confident won't fire

[fast yew]

why would I need to do that in this example. I'm asking because I did this same 2 box thing in the 1 cam per room example and it worked in that setup

[lofty rapids]

probably because it defaulted to first cam

without the need of collision

[fast yew]

like I can put the other camera in and it triggers on game start and that still works if I went and did it now. which I did try earlier this morning before asking

[lofty rapids]

what ? changing the camera changes teh collision ?

[fast yew]

oh you're saying because the other example had the box as a component of the camera and not some random actor the time at which it checks matters potentially

[lofty rapids]

changing the camera should not change the collision

[fast yew]

yeah changing the camera back to the old system where I had 1 camera per room

[lofty rapids]

so the issue is most likely what your doing with this new camera

and collision

because that should not happen

[fast yew]

the 1 camera per room camera had the same 2 box system but it was 1 camera per room. which did register on player start it triggered the overlap

[lofty rapids]

"OnComponentBeginOverlap and OnActorBeginOverlap events do not trigger if an actor is already overlapping a collision volume when it is spawned"

[fast yew]

but it did and has in other setups. which then becomes the question of why

why did it work there and not here when it's a default unreal collision thing

[lofty rapids]

you can probably ask forever, because i'm fairly confident it didn't work

[fast yew]

ok. so what you're saying is it's on me which is fine. I guess I'll have to work that one out

[lofty rapids]

i'm saying it doesn't work that way as far as i know, and if it did there was probably something making it look that way

or your character was moved

in the process and started the overlap

[fast yew]

I'm saying I did it and know it works and still have an example where that specific feature runs in this game. but that setup has other problems that conflict with how the camera behaves

which isn't part of the discussion of how or when a thing triggers the overlap

[lofty rapids]

well ya thats on you, idk how you got a thing to work that doesn't work

[fast yew]

which then enters the question why does it work there and not here which is a valid question

[lofty rapids]

its not because it doesn't

[fast yew]

https://www.youtube.com/watch?v=32M0cBoTW90

[lofty rapids]

are you spawning in one

[fast yew]

that works

[vapid oar]

Do you have an example? A video?

[lofty rapids]

one maybe spawning

and the other maybe placed in world

[lofty rapids]

tldr

[fast yew]

that guys video tutorial totally sets up the camera so that it triggers when the player spawns in the first room. it's just that he uses a perspective camera and the way he moves it doesn't allow for high order pixel accuracy which I have a lot of other effects that are dependent on screen space and pixel accuracy at a set sub pixel resolution. which again is aside the fact that it does do this elsewhere but not here

[lofty rapids]

idk how they do the impossible, maybe i'm wrong and theres some quirk

"If an actor is already overlapping when the overlap event is set up, it's not a "beginning" of overlap, so the event doesn't fire"

[lofty rapids]

is your character spawned in or placed ?

[fast yew]

it spawns from a player start.

[lofty rapids]

"race conditions where the overlap event hasn't fully initialized when the game starts"

https://www.youtube.com/watch?v=afMQK_6N160

[fast yew]

I did figure out why it wasn't overlapping on room entry I needed to do an abs on the values I set in box extents because they need to be unsigned but the extents parameter is a standard vector

setting that Z to a non calculated unsigned float of any value larger than the player capsule did the trick. and for the other thing I can just check on player start if it's overlapping the room

[fast yew]

look at how people setup IK/FK arms or legs in 3d animation. basically it's that but you're handling the animation logic in the engine. you said you made this in blender right? it amounts to 3 sets of bones all in the same spot with only 1 of the sets controlling the mesh. then you handle how to control the other 2 sets and interp between them

[fast yew]

looping on begin allows me to snag the values and it switches the rooms properly so I think it's likely good for now. 1 camera seems much more performant. now I get to rebuild the rest of the rooms that I have. thanks

[lofty rapids]

are you interp the camera ?

[fast yew]

yes but I don't love how I'm doing it. eventually I'll move it to C++ but I wish there was a more parent/child way to do it.

[lofty rapids]

i would have an array of points

and keep an index

[fast yew]

how would that work. like of the room extents.

[lofty rapids]

so you can go back and forth np

[lofty rapids]

basically you would have an array of locations for your camera

then i would create an actor for the collisions with an index you can set

[fast yew]

the problem was with the clamp. you have to do this interp because the orthographic camera for some reason won't clamp it's world location. not even when it's attached to a spring arm and you try to clamp the spring arm

[lofty rapids]

i mean can't you hard set it

[fast yew]

but then you end up with this goofy interp on the camera that can track the player with the clamp

[charred granite]

My character will start sprinten before I even hold the shift keybind, when I press play. Not sure what I'm doing wrong, this is my blueprints and the variable settings for the input actions. Thanks for your help.

[lofty rapids]

an array of indexes with custom collision actors where you set the index on the collision box

this way you can just say when collide over me, get index 1

and then set the camera to position index 1 of array

[fast yew]

that would work. but the people who make the levels aren't so good at the maths. the boxes make it easier because it calculates the bounds automatically and they can just make whatever they want.

[lofty rapids]

whats sprinting boolean default value ?

[lofty rapids]

oh so it just centers on the box or something ?

[fast yew]

yes it takes the tilemap set and then figures out the sides and such based on the tilesize of the map

[lofty rapids]

that sounds cool, makes things a lot easier

[fast yew]

this function here which is way prettier in C++ but it figures out the bounds of a standard unreal tilemap object

[charred granite]

I think I found the issue, in the BP_thirdpersoncharacter the character movement was still set to 500 somehow. I changed it manually to 300. Am I supposed to manually change that though, shouldn't the blueprint do that? PS : these are the settings for the IsSprinting boolean

[lofty rapids]

you can manually set default np

i mean it's built that way lol

[fast yew]

thanks it does. I want to make proper doors I think. then it's easier to load/unload rooms to take pressure off the cycles where you'd have tons of guys idlly waiting for you to enter a room

[charred granite]

aaahn okay, so eventhough I've set the blueprint correctly, I will still manually need to change the default value in character movement to match the walk speed, correct?

[lofty rapids]

well you can on begin play set it, but initially it will be whatever is in your CMC

[lofty rapids]

as far as correctly think about the fact that this event doesn't fire untill you press the key

[charred granite]

ah ye, I get it. The walk speed doesnt work from the start as it's binded to the input action IA_Sprint, therefore he used the CMC walk speed from the start. Only when pressing the shift button it will trigger it. So either hook it up to beginplay as you said, but it's prob best to use the input actions for this. So therefore, set the walk speed similar to the IA_Sprint walk speed. I get it, thank you so much!

You're always very helpful, you've helped me quiet a lot in the past, and I appreciate that! thank you

[lofty rapids]

i like to help when i can, i've programmed a long time so blueprints was fairly easy (still learning)

[charred granite]

If you dont mind me asking, how long have you been programming or into Unreal?

I'm guessing quite some time 😄

[lofty rapids]

unreal about 2 years

probably out of that 1.0 -> 1.5 years of actually working with unreal

[lofty rapids]

feels like forever lol

[charred granite]

I've only been at it for 6-7 months or so, I feel like I've got a long way to go but really enjoy working with Unreal

[lofty rapids]

visual scripting is pretty fun

[charred granite]

You've helped me to learn enumerations and how to implement them, it has come in very handy for my mini amateur projects 😄

anyway, I'll get back to it, thank you again! You're a legend @lofty rapids

[dusky moth]

how should i implement damping using nodes in blueprint, instead of a physics constraint. so i can have forces make an object stop quicker without making the object go too fast in the opposite direction, or reduce rubber banding when it reaches its limits and gets pulled back

[lofty rapids]

set linear and angular damping

[sharp sparrow]

How can I control two characters at the same time? What I want to do is this:
Use the WASD directional keys to control two characters simultaneously. Only the second character will move in the opposite direction.

When I press W for the first character, it moves forward, while the second character moves backward

[real cedar]

hey everyone how have you been doing

[topaz goblet]

Trying to spawn item in front of the player character, maybe ~15 ahead. I currently get actor transform and see there is a location ,rotation, and scale. What's the math or process for determining the transform to pass to the spawn actor?

[real cedar]

You wanna do it randomly or in some sort of manner

[topaz goblet]

15 in front of the player pawn. This current setup just does +Y, which ... doesn't work if player changes direction. I see the rotatio changing. Just don't know the function for taking and doing the math

[lofty rapids]

you should be able to add movement to the other player and invert the axis

[real cedar]

why are you iplementing line channel when you are not using it

[lofty rapids]

location + (forwardVector * distance)

[real cedar]

to get player's or whatever 's reference??

[crimson briar]

You can leave rotation empty and scale on 1 if you don't want to rotate the item in a specific way

[topaz goblet]

Unrelated right this second

[real cedar]

ok

[real cedar]

i thought you were having trouble that they are spawning even when player is not there

[topaz goblet]

Worked perfect, thanks! Forward vector...

[icy radish]

guys do you a way to interact with objects seen in a sceneCaptureComponent2d? Would be great if i can just by using my cursor... do u know a way?

[topaz goblet]

The future of the line trace will be, if the player is attempting to drop an item to a spot within their reach, it will drop it at that location, else, drop in front of their pawn.

[icy radish]

also casting a line trace would work, but i still need to direct it using my cursor

[sharp sparrow]

It will be single-player

[dusky moth]

if i have an object and a specific pivot point for that object (these are components), should i parent the object to the pivot point, or the pivot point to the object

[lofty rapids]

ya but the other player is a character or a pawn ?

[lofty rapids]

probably the object to the pivot point, is the pivot point a scene component ?

[sharp sparrow]

He's a character, yes, but he acts like a pawn. Both characters are main characters, and both are moving in opposite directions.

[lofty rapids]

yes just add input in the -axis

add movement like you would in your character, but add it to the other one as well

[dusky moth]

yea its a scene component

[real cedar]

maybe use input mode ui only

[icy radish]

that would make me able to interact with the UI but i need to access the objects in the real world which the scene capture is seeing

[lofty rapids]

instead of self in the add movement you just plug in your other character ref

[sharp sparrow]

Will both characters then realise that the directions are reversed? I'm talking about two gameplay characters.

[lofty rapids]

you keep what you have so the original character still moves

then you add another movement input but reverse the axis

[sharp sparrow]

Could you perhaps send me an SS example? It seems complicated because it's the first time I'll be doing something like this.

[lofty rapids]

well i would suggest looking into blueprints and how that all works, have you used bueprints much ?

[sharp sparrow]

Not much, but yes 2 mounts

[lofty rapids]

do you know where the move event is ?

[sharp sparrow]

Yes, in bp_thirdperson char

[lofty rapids]

yes so you see the add movement input nodes ?

[sharp sparrow]

Yes

[lofty rapids]

do you know how to get actor of class ?

[sharp sparrow]

Yes

But, function

Do you mean right?

[lofty rapids]

the node

[sharp sparrow]

yeyes yezx

[lofty rapids]

get actor of class

the other actor class

and plug that into the target of the add movement nodes

and you'll see how to control the other character

but you need to make two add nodes to make them both work

it's the target of the add movement that matters

[sharp sparrow]

Yes, i see

[lofty rapids]

and to flip the axis just multiply by -1

and it will move the opposite direction

[faint pasture]

15 is small but:
SpawnTransform = Compose(CharacterTransform, FTransform((15,0,0),0,0,0,1,1,1)

learn transforms and rotations, and what it means to compose transforms, rotate vectors, unrotate vectors, etc

it's not magic

[night dust]

how can I change the state of a Boolean variable in an actor from a component of the actor? I am trying to understand how to get a refernce to the blueprint. I have a PickupItem actor which I want to mark as "hidden" such that the player must perform a search before it is revealed to them. After that the PickupItem will be treated the same as other loot in my system.

[faint pasture]

What does the boolean represent, and what is this component?

[night dust]

The boolean is "bIsHidden" and it point is to determine if the actor will be hidden in game or not once found. In the actor I've set the visibility of the static mesh, so this will tie back into that function to toggle it "on/off"

[lofty rapids]

get owner ?

[pulsar oxide]

For better control of veritical height get a Socket location off the mesh... Head, Neck, Spine_5 etc instead of general actor location.

[night dust]

this is what I have atm. no errors, but also nothing changes

[lofty rapids]

your setting the visibility, do you want to set a specific boolean ?

because thats two different things

[night dust]

well, yes, and yes. I realize that this isn't yet changing the boolean value, but its trying to effect the same change I believe I've made in the actor too. Or am I making a mistake in my logic right now?

[lofty rapids]

depends on what your trying to do

[night dust]

Basically make it so that I can hide loot in the game until the PC performs a search for it, then it gets revealed.

[lofty rapids]

whats the boolean your talking about ?

[night dust]

Called bIsHidden, and is implemented in the actor. There's a check box in the details to mark this true or not per instance.

[lofty rapids]

so is this instance editable and it sets the visbility

where else do you use this is hidden

[night dust]

nowhere else, this is a new function I'm trying to add to my system.

[lofty rapids]

and item static is what ?

[lofty rapids]

i see so here when you set the visbility back it doesn't actually do anything ?

[night dust]

It an actor that represents a piece or pile of loot in game which is working as intended. It is tied into the system's inventory already. I'm attempting to add this feature into an existing asset.

[lofty rapids]

is this code running and when ? and is the cast failing ?

[night dust]

If I dont mark it as hidden, the actor appears normally. When checked to hidden it is, but I'm not able to get my logic to reveal it.

[night dust]

I have a input action setup to activate the component event in the first which is producing the print message, so I know everything up til there is working

[night dust]

there is no runtime errors, the cast is happening at keypress I suppose.

[lofty rapids]

put a print string on cast failed

does it show up

[night dust]

ah ha! It does show up as failing

[lofty rapids]

try to printstring the result of get owner

it should turn into display name ?

[night dust]

Ok yes, but I dont want that of course, I want to affect the actor.

[lofty rapids]

i see your not looking for the owner of the component

your looking for some other actor ?

[night dust]

Yes, my original question was how can I change the state of a Boolean variable in an actor from a component of the actor? So the Loot item actor has a few components attached to it for functionality, and I'm creating another one to add this reveal hidden logic

[lofty rapids]

fromj a component of the actor

thats the owner

but your not looking for owner

you want some other actor for some reason ?

the answer is you would get owner cast to to your type

set the boolean

[lofty rapids]

ok but your owner is the character, your not in a loot bp

show your components at the top left

this is not your game ?

[night dust]

Yes, but its based on an asset which I didnt create too.

[lofty rapids]

oh i see, well it looks like your in the character bp not the loot bp

[maiden wadi]

Delegates are a good way to let components tell their owning actor things as well. Bit more generic than linking the actor and component together.

[hidden fossil]

I have a nagging blueprint issue of my own, would like to polish things up with my charge shot but I have a hold-up with the release trigger where going through a door or triggering a boss warning locks its audio component to endless play (read: the sound effect for a full focus charge keeps playing without being stopped or it's reference destroyed). All other cases of releasing the focus charge for launching the attack are unaffected - it's just in these two cases, and potentially a third once I add backtrack blocks.

Any idea of what may be going on?

[maiden wadi]

https://tenor.com/view/alright-what's-the-code-wesley-chan-wong-fu-productions-boba-prices-are-out-of-control-tell-me-the-code-gif-6386293955550475296

[hidden fossil]

Side note is that it's a two-part audio sequence - one for the pitch rise during the power build, followed by the main loop for a full charge - and I am not 100% sure if that has anything to do with it. Additionally, it may take a while to get a screenshot of the blueprint as I'm essentially AFK for at least the next three hours (but will post it ASAP in case it helps).

[topaz goblet]

Ugh, got my inventory setup, equipment stuff, drag drop between containers and equipped items... and, need to go back and re-factor my combat system. 🙁
What does everyone use for documentation / flow charts / diagram stuff?
For sure as the game has become more complex, there are aspects where I just don't remember what did what and where things are....

[maiden wadi]

The short answer is, you're not stopping the sound during those things for some reason. Why that is is impossible to guess without seeing your logic layout and how you trigger the sound to go normally vs how it would stop during a door or boss scene.

[maiden wadi]

I think we primarily use Miro at work. Canva also isn't bad.

[hidden fossil]

Only thing I recall on the immediate is that there is a reference error pertaining to the destroyed object that shows in the warnings window following an in-editor play test, and consequently I have not ruled out a potential double whammy from that

[topaz goblet]

Thanks! I'll look them up.

[odd kiln]

Thank you very much I'll try that !

@dark drum You know maybe how can I implement your code into mine ? With a For Loop ?

[odd kiln]

I may also need that the actors spawn from the middle of the semi-circle and not the sides

I mean if I have only 2 actors to spawn, I would like to have the 2 actors next to each other but starting to spawn from the middle not the edges

Maybe I just have to reduce the "radius" ?

[spare atlas]

@next hollow is there a way to remove the shadow from the deleted object? or change it from server-side also? i able to delete stuff from the map but i cant remove also the shadow

[graceful mauve]

Total noob here. What could be the reason why my blueprint function library doesn't want to show up in other blueprints?

[violet dirge]

Does other blueprints is in the same plugins of the library?

[graceful mauve]

They are in the same folder and not in a plugin folder

WTF I do the same thing in another project and another project works

Could it because of blueprint namespace set in the project settings?

[dark drum]

Yea, you'd use a forloop. If you wanted the actors to be at the same angle but going out from the center you can just increase the radius on each loop.

If your going for the edge of the circle, just increase the angle each loop by some angle step. (Angle spread/total actors to spawn)

[dusky cobalt]

Hey, does anyone know what did I click in the editor that I don't have the option to move things in viewport by default and I have to switch with G to be able to move actors etc. ?

[summer pewter]

hello, i'm trying to hide my full body mannequin and unhide the arms. i have since changed the bone names to read "upperarm_r/l" and it still doesnt work. any help?

[crimson briar]

As far as I know it is just the game view. It shouldn't be on by default

And I don't see any setting to make it be the default

[sharp sparrow]

I apologise for yesterday, I overslept. I've set it up like this for now. When I press TAB, the character changes, and I can control the other character. I'm currently trying to set up the second character's movements to be the exact opposite.

[next hollow]

That game might do static shadows in such case, not that I know of.

[trim matrix]

I am facing a wierd kind of a bug, when dialogues are being played with Animation on widget along with sequencer playing cinematics. If I move my console switch from TableTop to Handheld or viceversa the player character loses the input. I solved the problem by applying delay node before and after the animation of dialogue finished. But still in edge case I get a bug if I do the above issues stated and before the cinematic player start I didn't give any input. Help How I can solve that edge case.

[lofty rapids]

ya this isn't going to work, you'll want to do what i mentioned yesterday.
This setup will only possess one at a time, won't move both.

[lofty rapids]

^.^

[sharp sparrow]

Yes, I have now called Get Actor of class.

[lofty rapids]

oh ok, well you need it to have execution and then do an add movement input

you know what that is the execution ?

[sharp sparrow]

I think I need to connect it with the Enhanced AI move.

[lofty rapids]

the white lines are execution

[lofty rapids]

basically yes

[sharp sparrow]

What should i choose actor class? Player0 or player1? Or something?

[lofty rapids]

the other actor that you want to move in reverse

[sharp sparrow]

But I have no other character than this.

[sharp sparrow]

By the way, I apologise for bothering you. It's my first time participating in a game jam. I'm trying to make it into the top 15 in the competition, to win a prize and improve my skills. The theme given was ‘interconnected’, which made me think of a puzzle game where the same character is connected but works in opposite directions.

[lofty rapids]

what is the other thing you want to move ?

thats the actor you want

[lofty rapids]

i would suggest a bit of blueprints tuts tbh

[lofty rapids]

your not bothering me, if so i would probably just ignore or tell you lol

[sharp sparrow]

Thank you for your understanding ❤️

I updated this as an actor.

[lofty rapids]

you want the specific one you want to move

[sharp sparrow]

So I suppose I want to control two characters at the same time, but they will act as mirrors.

[sharp sparrow]

When one character moves forward, the other must move backward. When one character moves to the right, the other character must move to the left. At the same time, I must be able to switch between these characters.

[atomic hollow]

multiply the direction by -1 to move in opposite for the one you want

[lofty rapids]

how long have you used unreal ?

[sharp sparrow]

2 Mounts

[lofty rapids]

ok well have you watched tuts on blueprint specifically ?

[sharp sparrow]

Yes, I was mostly doing level design, but I was mostly applying it by watching videos.

[lofty rapids]

i see so you have not done much programming that makes sense

"get actor of class"

it literally is getting an actor of a class

you chose actor

why is that ?

[sharp sparrow]

Because I thought which player would be controlled was an actor within the actor class.

[surreal peak]

I think one problem you are facing that you aren't sure how to fix properly is that you can't control 2 Characters at the same time via Possession.

[sharp sparrow]

I understand, I suppose I should give up on this. Because I don't have enough experience, nor can I fully comprehend the information being conveyed.

Right, I'll ask you this:
I don't want to control the character at the same time. I want to control two different characters as character switches. I just want the controls for the second character to work in the opposite way. I have something similar working, but I can't get it to work in the opposite direction.

[atomic hollow]

in the direction you are moving the character multiply that direction by -1

[sharp sparrow]

This is working correctly. However, when I change characters, I am unable to retrieve the reference for the second character. ,

[atomic hollow]

set the value of some boolean like this at the time you are changing the character and then negate the vector based on the boolean as the boolean will be inverted each time you change the character.

[lofty rapids]

i mean are you using the same reference or same character for both of these inputs ?

[atomic hollow]

i think he is using some flip flop node in the level blueprint

[lofty rapids]

[sharp sparrow]

I think that's the best way to explain it. By the way, you're right, I do have one pair of flip-flops.

[lofty rapids]

when you switch characters i would just posses the one you want, and have the opposite code in the bp

but anyway your code is strange tbh

[sharp sparrow]

I believe I need to add a node that can reference the second character within the EnhancedInputAction IA_Move. I also need to combine this with a branch and apply a negate operation with -1 to ensure all controls are interpreted in reverse.

[lofty rapids]

your using the same reference on the positive and negative

[lofty rapids]

yes reference the other character in the move

and go negative values

then do the same in your other character except opposite values

unfortunately i think for me it's hard to help because your not understanding

get actor of class the class of your other bp

do you know what the class is ?

[sharp sparrow]

Actually, I understand a little. But I haven't figured out how to get the second character. After all, since it's a copy of the first character, I can't add it with a node.

[lofty rapids]

ok

[atomic hollow]

do like this

[lofty rapids]

[lofty rapids]

this could probably work instead of possessing the other character

switching between the two

but they need to get the reference to the second actor

and add some input nodes

[sharp sparrow]

Yes, I can't quite figure out how to reference this second actor.

[lofty rapids]

i said it already a dozen times

get actor of class

is definately a way

[atomic hollow]

get it from the scene like the other one and use the select node

[lofty rapids]

i would just show you but in a case like this you learn nothing from it

and it's kind of an injustice to just let you copy/paste it

lol

i mean if it wasn't fora competition i might even send it, but i'm a big advocate of learning the basics

[sharp sparrow]

Is this Get Actor of class a reference to my other character?

[lofty rapids]

do you know what a class is ?

or what class your second character is ?

[sharp sparrow]

Character 2 is an exact copy of Character 1.

[lofty rapids]

did you duplicate it ? or spawn a copy ?

[sharp sparrow]

Both of them are BP_ThirdpersonCharacter

[lofty rapids]

how did you put them in the world ?

[lofty rapids]

thats a bummer

[lofty rapids]

^

[sharp sparrow]

https://www.youtube.com/watch?v=3aLBUDlrids I performed the switch character control with this video.

[broken valve]

can someone tell me the usage of save game in variables

[sharp sparrow]

i do duplicate it

[lofty rapids]

ok so you already have the references

[atomic hollow]

he just need the ref and change the ref based on the flip flop boolean

[lofty rapids]

did you learn anything from this ? or did you just blindly copy it ?

because the reference is already there

you don't need get actor of class

or anything

you have two references

one for each character

it's literally two more nodes to get it working

[sharp sparrow]

I think so, yes, I watched it three times to make sure there were no mistakes. I haven't added my own touches to it yet.

[lofty rapids]

do you know anything about references ? or where your two references are in the bp ?

[sharp sparrow]

I have a variable called Player1, which is a boolean.

[lofty rapids]

it's hard for me to help when you don't know much about blueprints

[lofty rapids]

you know what a boolean is ?

[sharp sparrow]

I set up the switch system in Demo_mapin. The second character is within the level, so yes, I know where it is.

[lofty rapids]

you know where your reference to your other character is ?

[sharp sparrow]

Yes, I know the basics such as boolean, float, etc.

[lofty rapids]

how do you know where the reference is, but you don't know how to get the reference ?

[dark drum]

Save Game is a flag that can be used in C++. It doesn't actually do anything by default from a BP perspective. It can be used when serializing an entire object to be saved but the functions to do this aren't accessible in BP only.

[sharp sparrow]

ııı yes

I don't know how to pull the reference of another character from the level into the BP. I can do it in the level, but I can't do it in the BP.

[lofty rapids]

you shouldn't be using the level bp anyway lol

[atomic hollow]

What!
why it is necessary for epic to expose it for blueprint variables

[lofty rapids]

so personally i would not have them both the same character, i would make a parent character

and use them both as children

with different class

[broken valve]

can you tell me from where i should read about it i am not getting any information on it

[sharp sparrow]

Well then, I can't figure it out because I made a mistake from the very beginning.

[lofty rapids]

i see the issue your having with the reference