blueprint

[dark drum]

Right but how is that relevant to the furnace?

[snow halo]

good question, its because furnace is also an inventory item that is placeable, craftable, and interactable, meaning the player is allowed to collect it etc. There's 5 categories of item types.

[dark drum]

Also as an FYI, all you're sounds and images in that datatable should be soft refs otherwise you'll force load all of them, even if they aren't being used.

[snow halo]

I've put my furnace in building because it seems like a furniture type of item that is not gonna be moved much once is stored somewhere in a safe home for example

[lunar sleet]

Man’s gonna have plantations in this game

https://tenor.com/view/django-django-unchained-samuel-jackson-they-gon-work-you-all-day-every-day-gif-9331197762647843166

[snow halo]

how much is that gonna be a noticeable performance drag? because Im scared if I change something in one place it's gonna create a log of bugs in a million other connected places

[dawn gazelle]

It's not really a performance drag, it's a memory issue. Lower end systems may not have the memory to have all that stuff loaded on top of what you need to have your game going properly.

[lunar sleet]

Also depends on how heavy the assets are and how many. The more you add, the worse it’ll get

Refactor early so it’s not more painful later on

[snow halo]

for example even here im not gonna try to change the type, just make an array and then out of this created array im gonna try to duck-tape fix this issue here with a blueprint node rather than change this type that's connected to a thousand things

[snow halo]

noted, thanks memory is a big issue for me, I take this very seriously because my game already is kinda memory intensive

[lunar sleet]

Bp-only structs may also become a problem tbh

[faint pasture]

that has the possibility to be partially or completely full of invalid objects

[lunar sleet]

At least if editing them at runtime

[faint pasture]

You will need to loop over it, collect all the valid ones into an array, THEN get a random element

that'll work

[faint pasture]

Yeah on my latest and Final™️ refactor of my project, no BP structs at all

I have a GameNameTypes file and just shove whatever I need in it

it's also the file with the function library so it's just a 1 stop shop for non-UThingy code

[snow halo]

editing? bp-only structs like the one im having here?

and what problems can it have?🤔

[faint pasture]

fucking with the layout and structure of that is playing with fire

[lunar sleet]

Changing any values therein dynamically can cause it to break and lose some or all its data

[dark drum]

Yep, which you'll need to do to sort out to make the soft refs and turn the sounds to an array of sounds.

Thoughts and prayers. 🙏

[dark drum]

Don't duct tape unless you're like 90% the way through a project. Doing it this early in development will almost guarantee to cause bigger problems later on.

I had to redesign an entire system once about 2 months before a scheduled release to fix stacked problems. It was a very stressful few days but lesson learnt.

[lunar sleet]

https://tenor.com/view/crypto-easy-fix-fixed-job-done-just-a-small-leak-gif-2608197380915810492

[dark drum]

They'll never notice. 😜

[snow halo]

can't make an omelet without breaking a few eggs structure types 🍳

[faint pasture]

But where's the omelet?

[dark drum]

or.... rebuilding an inventory system from the ground up... 🙃

[snow halo]

https://tenor.com/view/omelette-egg-prepare-food-gif-7690570

[lunar sleet]

In the case of bp structs your eggs will dematerialize and you’ll have no omelette on your plate

[kind estuary]

anyone prefers to use bools vs enums? bools are easy to set up. enums always require a new stupid file

[lunar sleet]

Depends on the use case. Right tool for right job. Bp enums are also similar to bp structs afaik

[kind estuary]

🫡 though its much more practical to just bool everything

than creating a file

[lunar sleet]

Doubt

[kind estuary]

for enums

[lunar sleet]

If you’re doing like 10x branches per execution you have an issue lol

[kind estuary]

isnt there like a standard way to make enums without the new file

[kind estuary]

yeah

[dark drum]

in C++ you can just add it anywhere. 😅 (don't actually do that though lol)

[kind estuary]

you mean you can create it inside a function

?

structs too i think

[dark drum]

It depends, I use both as and when needed. Sometimes I might even use gameplay tags.

[kind estuary]

i just dont like bloat. and the pain of creating a file everytime you need a new enum

[dark drum]

I don't know about that but it wouldn't surprise me if you could but I just put them at the top of the header for the main thing that would would use it.

Need a new one? Copy paste, done lol.

[maiden wadi]

And then there's those projects where you open a "Types" file. And that shit has 173 enums and structs littered through it.

[dark drum]

I was just thinking that.

[lunar sleet]

Hey, at least it’s all in one place 😀

[dusky cobalt]

Destroy(self);

[maiden wadi]

And technically, yes inside of a function. At least in C++, assuming you don't want anything except that one function using it. I have some minimum spanning tree and voronoi handling functions where the function's first twenty lines is defining a few structs in the local scope to be able to organize data better inside of it.

[dark drum]

Does anyone have any ideas how I could define component classes in a data asset (that should be added to a world item actor) so that I can configure the default values when they are created and added to the actor? It can be C++ solution if it's exposable to BP. (hopefully that makes sense)

[dark drum]

That's cool, good to know it's an option.

[dusky cobalt]

In my case I made these components UObjects and called them Modules. Not sure if you have something that requires it beeing actually Component?

[dark drum]

Yea, I use that approach for item behaviors but that's the item specifically. (potentially still functional when in an inventory) When it's spawned in the world as an actor, I might want the actor representation to behave a specific way such as having my 'Interactable' component which handles being looked at and the interaction in general.

Perhaps a Component Config object that I can instance and edit inline. 🤔 I've been procastinating on this for a while now haha.

[dusky cobalt]

I mean you could still have UObject adding something to the Owner that will then broadcast event which the UObject listens to?

I have been also brainstorming this for a long time before I finally went with modules and I'm not saying it's right but its something Im trying right now. So far so good. Components feels easy but just like you I wanted to put ''modules/components' on the actor in Data Asset but also be able to change data for example so I went with UObjects.

So now I have TMap with Tag+Module in Data Asset and I can set it like this.

now I don't have to have Health variable for every DataAsset because it's completly HealthModule that takes care of it

I would love to have something like that with components, so you can put ComponentClass and edit the ''starting'' variables.

The other alternatives feel like you would kind of hardcode everything like make UObject Component, there you would have children each with different variables and different component class, initialize that UObject, and make ActorComponent fetch data at begin play from that UObject as well. Maybe there is better way though.

I also have some modules that have Methods as UObjects so it's UObject inside UObject inside UObject 😄

[dark drum]

Same lol.

[dusky cobalt]

If you come with something up for components let me know because I couldnt really get anything better 😄

[dark drum]

Errmmm... o.O

[dusky cobalt]

will it actually ''spawn'' with these settings then? 😮

[dark drum]

Well with C++, you can just copy. 👀

[dusky cobalt]

oh yeah xD

[untold ferry]

Hey hey all! I’m trying to switch from combat mode which has its own set of animations to move and so on, to an Unarmed state with its own animations at play, I already crafted an unequip/ equip system where the weapon is sheathed but how would I go about implementing it in the event graphs? Also I have the anim for the unarmed state completed

[kind estuary]

i always get this error when changing a Interface function argument

its quite annoying

tried refresh nodes, doesnt work

[dark drum]

I'm about 90% there. 🙂 It just clears all the components if I move it in the editor. 😅

Edit: never mind, it's not applying the data. haha.

[dreamy mountain]

I want them to spin to the left and start moving that way but without moving the camera

[snow halo]

btw @dark drum we talked about soft referencing images/thumbnails ✅
what about classes or other assets? should i make those soft ref too? I dont think they are going to cost more than a few MB though. But for classes I think it's important

some friend told me I should use data assets instead of structures too

[outer brook]

Hello fellas. I am currently working on some SaveGame aspects and came across the StaticMeshActors in my game which I would like to save it's material and the material's parameter values.

I would like to know what is the best way to save and load the StaticMeshActor's material properties?

The mesh in the screenshot uses an instance of a selfmade material through which I set the parameter via another BP.

I've provided a screenshot of the logic with which I am currently trying to read the scalar parameter values of each material of the StaticMeshActor. But it seems like this way is wrong in some way which I cannot tell why but observe missing values and params through the debugger.

Anyone here who knows a better way?

[faint pasture]

Then just give them the input vector to move in that direction and turn on orient rotation to movement

slow it down if it's too instant

[dark drum]

It can depend what the classes are and whats in them but with them being in a data table, it can be beneficial to have them as a soft ref.

[dawn gazelle]

You would not be able to directly save a dynamic material instance. You can save data about the material like your parameters, but not the actual material instance.

[faint pasture]

this is close, just turn down how fast it's allowed to turn and you're done

[outer brook]

That's why I switched later on to "Material"-Reference in my Struct. Later on, when loading the savefile, I then set the StaticMeshActor's Material with the saved one. But at runtime the debugger doesn't show me any parameters from the MaterialInstance, neither on save nor on load

[zealous moth]

how do you get/set the values?

[outer brook]

Here a screenshot of the processing logic for the ScalarParams.

[zealous moth]

so that's how you get it, how do you set it?

[runic parrot]

Did they removed the "my library" from the fab window? o.O

[zealous moth]

@runic parrot

[outer brook]

Uhm after you wrote that, I checked the "load" mechanism. I found out that the "save" mechanism saved the wrong materials ("GetBaseMaterial" was the wrong function).

Now my main question is, how do I get the "material" only of the StaticMeshActor? Or more like, "what" do I save to load the correct material later on?

[zealous moth]

if it's a material instance, you just need to get material at index 0; if it's a dynamic material instance, then you need a reference to that and change the values in that

[noble cape]

Hey, is it fine to use the property access node to just access struct member variables?
https://dev.epicgames.com/documentation/en-us/unreal-engine/property-access-in-unreal-engine

Or is it only for when you want to access game thread data during anim update?
I just want to use it because it looks cleaner than using the break struct

[outer brook]

Oh god, yes! The first variant saved me. I though I already tried to get and save the material "interface" but saved the "instance" instead in a wrong way. Now it works. Thank you very much!

[dreamy mountain]

That's with setting the rotation, not adding it

So rather than adding until it hits a target, it sets it straight out, because when I try to add to a target, or set to a target, it just spins for days

Literally rapid spinning

[faint pasture]

Use the built in orient to movement on character movement component

Just look at the default 3rd person template

[faint creek]

Hey guys, it's ok to make something very simple like this? I will have any bug or crush issues using these easy nodes without using the AIBehavior Tree?

[flat raft]

i wouldn't put a '?' in your variable name though

[faint creek]

What do you mean? 🙈 Why?

[flat raft]

"Player is Hide ?"

[terse spruce]

Can someone expain how to use these nodes?

i am stumped

[dawn gazelle]

The first one gets the location of the actor. The second you are feeding in values into a structure, it is not doing any calculations for anything, you're just supplying it with the value and the buffer size.

[terse spruce]

thank you i am asking about the make average over time node specifically. The issue is that no matter what the node only returns the currents value to me

[thin panther]

Yes, because that's what Datura is saying. You're just making a struct. It's not doing anything special or magic

[fleet mica]

Hi,
I’ve recently started working with Unreal Engine 5 and created a new project using the Game Animation Sample.
I added some functionality to trigger an attack animation when clicking the mouse.
However, the animation isn’t working in multiplayer – it’s not being replicated.
What do I need to do to get it working properly online?
Also, when testing with multiple clients, the animations run at a very low framerate and are not visible to other players. Any suggestions on how to fix this?

Thanks in advance!

[terse spruce]

from the name i assumed it returns the average, if i break the struct i have a result output. Clearly i am not understanding how to use it (never used structs before), how do i go about getting an average out of it

[faint pasture]

probably save to a variable and then get and break out result

or you should make on begin play and then see if there's an add somewhere for it

[terse spruce]

still nothing

[terse spruce]

an add?

[faint pasture]

BeginPlay -> make -> set
Tick -> add -> get result

yeah there has to be an AddEntry or something of the sort

[dawn gazelle]

A structure only contains data. They can have functions that you execute on them but this one doesn't have any functions that are accessible in blueprints. There also doesn't appear to be any blueprint exposed functions that take this particular structure type as an input.

[faint pasture]

Yeah im looking and it looks like it doesn't do much lol

[dawn gazelle]

Based on the name in the source, it looks like it's used for the control rig maybe? I'm not sure.

[faint pasture]

Which is annoying because there's some great utility struct stuff like the spring damper

[faint pasture]

What are you actually trying to do?

smooth out a location?

[terse spruce]

I see, thank you both.

[terse spruce]

smooth out a vector yes, i know i could just do it myself, but i am just trying to use existing nodes

from the name this sounded like it would do it, guess not

[faint pasture]

depending on what you're after, I'd probably just use VInterpTo

[thin panther]

As a general rule of thumb, if it starts with some odd prefix, like in this case Rig VMFunction, it's probably not that useful from blueprints :P

[faint pasture]

Tick -> Smoothed = VInterpTo(RawValue)

or

I'd use VInterpTo though, it'll be more robust against framerate changes

[terse spruce]

i give it a try too, i am testing a few smoothing option

[analog belfry]

I have an actor that is supposed to be a collectible item in my game. The blueprint auto receives input from player 0, is at input priority 0 and doesn’t block inputs. The collectibles have no order they are meant to be collected, so setting priorities wouldn’t work for my use case. My problem is that when testing, you can only collect the items in a certain order and the other items don’t take inputs. How do I fix this?

[dreamy mountain]

how are you doing the collectables? if i were doing it, i would check for collision and then check if the collided actor is the player character

like whats the blueprint looking like

[analog belfry]

the collectible checks for overlap, and sets a variable if the player is overlapping self

it takes inputaction interact and checks if the variable is true before doing the collect event

[dreamy mountain]

show us the code

@analog belfry

[analog belfry]

I've got it, I took your advice
now ehenever the player overlaps with the collectible it enables input on self

solution seems so obvious in retrospect lol

thanks<3

[kind estuary]

Is this what you do when you change animation, and the weapon needs to sit on the should instead of in both hands?

[faint pasture]

is collecting an item meant to be "get near it, press interact button"?

[kind estuary]

it kind of works, though it looks weird

[faint pasture]

@analog belfryIn that case, just do it like this, it's dummy simple.

Character:
InputAction -> figure out what to try interact with (get overlapping actors, sphere trace, line trace, whatever, filtering by if it implements InteractionInterface or has an InteractionComponent) -> call Interact on it

that's it

on the item, just hook it up like:
Event Interact (from the interface or component) -> do the collection logic

[analog belfry]

even if i hadnt already gotten a different solution, this one wouldnt have worked for me since i have no access to the character bp. thanks though!

[tiny tundra]

I have a User Widget that has a parent class - the Parent is already doing something OnInitialized, but I want to ALSO do something in this particular widget. How can I go about this additively (do the parent's EventOnInit, and then my current Widget's as well?)

[dawn gazelle]

You should be able to right click on the OnInitialized event in the child blueprint and there should be an option there "Add Call To Parent" or something like that.

[faint pasture]

Yes you do, pass InteractingCharacter over in the interact call

so ThingBeingInteractedWith knows about the Character that's interacting with it

Or do you mean you can't modify the character at all?

What does Interact look like on the recieving end?

[analog belfry]

this code is attached to the blueprint for the collectible actor

[faint pasture]

The input is on the collectible? Who designed this lol

[tiny tundra]

awesome thank you so much 🙂

[analog belfry]

If you can think of any better way I'd love to hear your opinions

[faint pasture]

Just put InputActionInteract on the character, have it figure out what to interact with on Pressed, and call InteractionInterface.Interact on it

Then you can implement Interact on anything and have it just do what it should do when interacted with

[analog belfry]

i have no access to the character bp

[faint pasture]

Are you sure the character isn't already doing what I'm talking about?

It's fairly standard

[analog belfry]

It probably is, but i'd have no access to the interaction interface either

[faint pasture]

you can't even implement it?

Who's rule is this lol

[analog belfry]

its a mod and we all know how unreal engine feels about being modded :-)

[faint pasture]

You can probably implement the interaction interface in a mod

[sick sky]

whats the link between engine being modded and poor design decision on your systems ?

[faint pasture]

that's like saying you can't use a mesh from the game in a mod

it doesn't mess with the mesh, it just uses it

[analog belfry]

i only got into unreal engine at all in order to mod this one game, so i really wouldnt know how to use the interaction interface in my modded content

[dawn gazelle]

I technically started with Unreal Engine modding Conan Exiles. From what I remember there were some classes that were basically inaccessible and you couldn't really subclass things to modify them how you wanted. :/

So even if you wanted to make your own character class, you couldn't just subclass it to add additional functionality to it but you could add more meshes to a data table and your character could equip them. 😛

[kind estuary]

im doing something here that doesnt feel right.
When my character changes animation, the weapon position is off relative to the hands.
I'm using a socket, but it doesnt work well for certain animations.
So what im doing is everytime the animation changes i update the weapon position.
Is this the correct way to do it? Something feels fishy.

its also a bit of a pain to create a function to set the position of the weapon for each different animation

but if this is the only way to do it...

[proud notch]

Not sure if this is the right channel.

I am working on a Marquee selection tool, but I want the selection to be a circle, not just a rectangle, is it possible to have the HUD to draw circles too?

[faint pasture]

author the animations such that the socket/bone is behaving

who made these animations?

[runic parrot]

I meant inside unreal engine editor

Can't find my library anywhere

[sick sky]

Are you connected ?

[runic parrot]

that was it, thanks! i got disconnected for some reason

[little agate]

It will be easier to address the problem by comparing those 2 animations. select the bone where the socket is placed, and check the bone orientation

[astral flame]

Is there a better way to do a regen code to check if the player has max health

I want to make it so the system knows okay player took damage...

[little agate]

You can make it as actor component I guess and setup the tick duration there independently if your intention is to make this execution has different tick duration like 0.3s

[astral flame]

Its for a multiplayer so I feel like if its checking for 16 players health every tick will effect performance?

[little agate]

and also, if you wish to implement this, need to add "do once" node I guess to prevent creating the new delay task on every tick, the actual execution will not executed every 0.3s, it will depend on that tick interval.

You can play around with tick interval I guess, I am not sure if something like centralized heath regen manager will have a big impact to performance though

[astral flame]

OMG TY

I tried the Takeanydamage

didnt work.

@little agate If i want the delay only to happen once do I put the DO ONCE before the delay or after both ways add the delay for every tick

like old school COD regen, waits a few seconds then regens

[little agate]

you mean, you want the regen to start if the player have some kind of state, like "not moving"?

[dawn gazelle]

If you're intending to do multiplayer, you're not going to want to do anything like this directly on tick.
The server should be the only one concerned with modifying variables relating to your player's health, but placing this directly on tick would mean that every client and the server would end up running the code there.

You may have better results with timers, especially if you're trying to do some advanced things like starting and stopping the regen effect as you can use the timer handle to stop it if needed - so when the player takes damage, you stop the regen timer by its handle, and have another timer set up that can be continually restarted as damage is taken and until it finishes set another timer after another desired delay (effectively, the amount of time you want to wait for players to start regenning again after taking damage) and then have that timer start a looping timer that applies the health you want to add.

To simplify:
OnDamage > Clear and Invalidate RegenTimer > Start RegenWaitTimer (non-looping)
RegenWaitTimer > Start RegenTimer (looping)
RegenTimer > Add Health

[astral flame]

That worked!

[little agate]

This one right? neat

[dawn gazelle]

Yea but usually the by event is better than by function name as you can make typos and if you happen to rename the function the timers that may call it won't be updated with the new name.

You can always have the timer call a function by using the "Create Event" node and plugging it into the orangey delegate pin.

[little agate]

Love this

[kind estuary]

mixamo

[kind estuary]

so go on the animation in blenderino and change it so that the weapon is in the correct place hmm

[kind estuary]

check the bone orientation/location?

then what, change the bone?

or change the socket transform?

the only way to change the socket transform is by setting it by ref

😵‍💫 hmm

I read in my searches, that the solution for this is to have a data table, and then each gun and each animation will have its own relative offset to the socket

and thats what im doing now. but what a PITA 🍑🔥

[little agate]

are you using different skeleton for each animation?

[faint pasture]

First check if the anims are consistent about how they move WHateverBoneTheGunIsSupposedToBeAttachedTo

[wide imp]

on apply button click ^

second picture is event construct...

why is this not saving the motion blur amount to 0?

[kind estuary]

no, its the same skeletone

[kind estuary]

@faint pasture

tried to make a quick video showing the issue

see im having to update the position of the weapon at runtime when changing animation

and that actually works, but if i dont do it then the weapon goes out of place

so the idle position is okay, but the walking is not

if i place it well for the walking it will be off for the aiming animation and the idle animation

[little agate]

how the heck the socket offset location change for each animation

[kind estuary]

yeah see

so maybe there's a problem with the animations you would say?

so this is not normal?

[little agate]

maybe you should try to attach it on righthand instead on lefthand

[kind estuary]

i just checked it and the socket and hand is correct on both animations

its just that they change position

[kind estuary]

i think it would be the same, but i will try

[kind estuary]

yes that made it much better

though still innaccurate

[faint pasture]

thats because either the animations are authored in such a way that they aren't consistent about bone placements, or you're attached to the wrong bone

[little agate]

it is like that the animation is not designed for that specific model, might need to add control rig to adjust the right hand bone to a specific socket location on that weapon

or, just modify the animation it self

[kind estuary]

ok will do that, thanks 🫡 @keen pollen @faint pasture

[snow halo]

Hi I have a question. I have a structure/data table for all my game's interactable items, my question is...

can I change or edit data of this data table while on run time

because usually this data table only gives me data, data which I set up before booting the game

but what I wanna do is set up some logic in which on run time I can also send data to this data-placeholder

[dawn gazelle]

Technically yes, but you wouldn't be able to save that data at runtime. Data Table info is meant to hold static data.

[nimble lichen]

you can make a struct variable and just make an array inside a save object and set the defaults then change this and save it

[snow halo]

For example this is my base structure for all of my items. Im thinking about adding it a new type that will act as a container. A struct within a struct or something like this.

For example this struct will be called "Higher Item Complexity" for example...

Why do I want this?

Sometimes some items might be also containers, like a chest item for example can contain other items too. So what happens if I press the key to trace it and automatically destroy it? It will just give me 1 item.

What if I have a furnace? A furnace can store frying pans or other kitchen-ware and that kitchen ware can also store food on top of them too. So they stack items. Items stack items too sometimes.

I just feel kinda weird that I can just trace them with the "e" key and just destroy them all just like that

[snow halo]

save object?

could you elaborate?

[dawn gazelle]

That's not the intended usage of Data Tables.

Data Tables are really only meant to hold unchanging data, stuff that won't be manipulated, and it's usually not information you end up needing to pass around - the only thing you may need to pass around would be the row name which would let you look up the static data of that item.

[zealous moth]

Datatables are reference tables. You get but don't set data.

To set, in your save game data, make an array ofbstructs or a map by id

[snow halo]

variable?

[snow halo]

where would that be stored?

[zealous moth]

In your save game, add a var that is either an array or a map

Since you can get/set save game data at runtime

[snow halo]

I dont have a saving system set up yet if thats what you mean

I have a component that deals with trace destruction of items

and adds said items to your inventory

the reason why im getting to this problem in the first place is because of my furnace logic

I could probably simplify it up even more and just let the player break the furnace only if his pancakes are ready for example

[zealous moth]

Do you need the data to remain after the game closes? If not you can use other means of storing the data like the game instance or the game mode.

[snow halo]

So I have a furnace that has many uses, at the moment i've invented the use of baking food for example, and I pulled up some pancakes as my first type of food. If you press the keyboard interaction key it will destroy the furnace so i've set up a branch here for certain plans that are not grown yet or certain items as a protective safe to block the player from being able to gather items that are not mature enough or ready to be gathered

[snow halo]

Im placing a pan on top of the furnace. Then I wanna place a type of food on top of the kitchenware that's situated on top of the furnace

So you can see where it starts to get complex

Every item makes an action

This is also how im doing the logic for the pan. Ive set an invisible static mesh attached to the furnace already

I know logic tells me to use "spawn actor of class" as that will work much better

but I wasn't able to do that for some reason.

So things like campfire wood is placed already in there, just magically make it visible when the right item is being held and create the illusion that it's spawned there or whatever, doesnt matter I guess for the player

as long as the player can see your fire turning on and your food getting cooked & his equipment getting placed/heated & finally picked up that's all that matters from that gamer perspective

So it's kind of a smoke and mirrors technique of faking it til youre making it

you think you're lighting up fire for example, but the fire is already kind of there, you just make it visible, same for my pan placed on top

[warped juniper]

Can the CMC be made to walk in close-to-perfect circles around a given point?

[upbeat drift]

Or you could just do avg += (new_sample - avg) / N; and save yourself one division which is costly

[dark drum]

There's nothing out the box but you can get something working by adding movement input.

Apply the character forward vector and update it's rotation so that it's left/right vector points to the center.

If you have strafing you could add input on the left/right vector and rotate the character to face the center instead.

[warped juniper]

I tried this but the issue is that you get a stale tangent vector on each tick.

Basically each update the character just moves in a straight line, then the vector updates, but not during that movement

[dark drum]

It might be worth you watching/reading about uobject based inventory systems. I feel like they'll offer more flexibility that your after.

[crude pecan]

Is there a way to access the actual material applied to a skeletal mesh from a line trace hit result in blueprint? I can do it fine with static meshes via the collision face index.
For skeletal meshes the closest I can get is the array of materials applied to the skeletal mesh, but I have no way of knowing what the correct element index would be for the hit location

[dark drum]

Add rotation input as well. The amount it rotates could increase the further away from the desired rotation. That way both the movement and rotation are being driven by the movement component. You could probably add an additional amount (a rotation boost) if required.

[warped juniper]

Add rotation input? That doesn't seem to be a node...

[upbeat drift]

like this no?? i haven't checked though

[dark drum]

Sorry, I was thinking of the add controller yaw input. (It's still early for me lol)

[upbeat drift]

Try and retrieve the material applied to a particular collision face of mesh. Used with face index returned from collision trace seems about right

[warped juniper]

My Controller direction is fixed to look at the pivot point at all times

Every tick

[crude pecan]

It doesnt return anything ona skeletal mesh, only on a static mesh

[dark drum]

Hmmm, it do say the node is for primative components so it's odd it doesn't work for skeletal meshes as well.

Is the face index actually returning anything?

[crude pecan]

It returns -1 for a skeletal mesh

[upbeat drift]

someone pls help me as well, its the 3rd day i'm stuck on this 🥹 🥹 🥹

[dark drum]

As far as I'm aware, you just need to see the character to use the control rotation (yaw). If this doesn't work, it might indicate you don't actually add control rotation from your look inputs.

[crude pecan]

The closest I can get is the array of materials applied to the skeletal mesh via HitComponent>GetMaterial. I've just got no way of knowing the index

[upbeat drift]

maybe get material from collision face index doesnt return the correct index but maybe the correct material

[crude pecan]

It returns a null asset regardless of the index

[crude pecan]

Anyways, thanks for the thoughts

[warped juniper]

@dark drum I tried a predictive way by calculating vectore distance and all

But nothing seems to work

I even tried to use ChatGPT.
Chat. GPT.

[alpine frigate]

This is cool, you've got all the pieces here. Similar to how you're doing, get the actor distance as well as the direction and do distance times a multiplier into velocity. Technically there would be a fairly easy formula and gravity would make the curve non linear. But you could just start with a distance multiplier and possibly get acceptable results.

[dark drum]

Can you show how you've set it up and what happens?

[warped juniper]

It's getting late and I'm running out of energy so I have started to shut things off here...
But I can show a video of what happens, and the code used for it

[subtle mirage]

Hi. I have a blueprint with a Niagara system and I am moving the system/bp using the ‘Move Component To’ node. I would like to stop it when it has overlaps/hit another blueprint/component. How can I do that?

My bp setup.

[warped juniper]

You could use a Timeline instead, with a lerp to Set Actor Location, for the same movement effect that also allows you to stop the movement at any time you want (in this case when it overlaps or hits)

@dark drum Can't show a screenshot because unreal decided to compile shaders. I dmd a video...

[subtle mirage]

Thanks @warped juniper for the suggestion. Could you send a screenshot of the setup, I have only used a timeline for minor animations but never done something like this.

[warped juniper]

@dark drum This is my current vector movement setup

[dark drum]

Wheres the rest of the logic? Can you show how these values are bing used?

[warped juniper]

Resulting vector is plugged into the AddMovementInput node
Player camera is locked on to an enemy, by constantly updating control rotation to aim directly at target enemy.

[dark drum]

If the camera is already locked onto the enemy, just add either the left or right vector of the character for movement.

[warped juniper]

The video I DMd you shows why that is an issue

[dark drum]

Not really.

[steady night]

is there a way to check "wich player" is pressing the button?

(locally)

[warped juniper]

How so? The video is using the method you describe...

Just using right vector creates an unreliable tangent

[dark drum]

I don't believe so. What are you trying to do?

[steady night]

well im using splitscreen/shared screen) basicly hwne player 1 presses 1 open this widget and when player 2 presses 1 open hes widget

[dark drum]

The video shows the character circuling another actor which is what you asked for. As for unreliable tangents, I'm not sure what you mean. tangent for what?

[steady night]

they got a shared Hud_screenWidget

[warped juniper]

It also displays the distance from target on a corner, which slowly increases when they mive

That is not intended, or at least at such a noticeable pace

[steady night]

@dark drumsolved it

[hasty oxide]

So I have this problem where I am trying to implement picking up objects in my game but there is jittering. The client and the server pickup the object correctly but there are the following problems:

1. When the client pick up the barrel his screen goes crazy and it looks like he is moving left and right really fast but on the server it all looks normal
2. When anybody else picks up the barrel he sees that person as moving left and right rapidly again.

Is the server trying to mess with the location of the barrel or what is happening

[celest crown]

my initial guess is that the collisions are fighting with each other (the player one and the barrel one)

[hasty oxide]

do I have to set the collision both on the client and the server ?

[hasty oxide]

yea I think ur right

if I just atach it to the character it flies up in the sky cause it thinks it s actually standing on something

even t hough on the server it s normal

I switched the event to be called from all clients instead

it seems to work

I think

[frank moth]

Hello everyone! How can I setup launch parameters for a startup level for both Editor and Packaged game?

Usually this is done in OpenLevel() and adding options, but I want to do it on the startup map that I add in Project Settings.

LogInit: Display: Starting Game.
LogGlobalStatus: UEngine::Browse Started Browse: "/Game/Maps/L_Start?Name=Player"
LogNet: Browse: /Game/Maps/L_Start?Name=Player
LogLoad: LoadMap: /Game/Maps/L_Start?Name=Player

[steady night]

hmm is it possible to check the distance based on X axis and y axis ?

[dark drum]

distance 2d if you want to ignore the z value.

[steady night]

hm yeah but

if plasyer distance between eachother on X axis 3000 do this

or if distance on Y axis is 1500

do this

like that

[upbeat drift]

Found the real issue, it was in ABP_SandboxCharacter function Update_States where it was setting movement state based on another function IsMoving, I just added a check before it so that it would only go into the moving state when hip firing and the Xdelta from Get_AOValue was greater than a certain amount of degrees (90) or the character was actually moving using the original logic. And obviously add IsHipFiring in addition to CharacterInputState.WantsToAim for the Weapon Overlay Blends. Thank you @dark drum

[steady night]

@dark drum yeah got it working ty

[slow flint]

Hello is there a way to decide how much distance we want from the cursor ? right now my tooltipwidget is directly below the mouse . is there a way to change that ?

[narrow sentinel]

is there a way in UE editor to backtrack on what lead up to a breakpoint being hit

kind of like you can in the IDE where you can go backwards to see what happened etc

output log might tell me

[maiden wadi]

AFAIK, not without engine edits. You have to do the offset yourself by adding padding in your tooltip itself.

[maiden wadi]

There's a callstack in the blueprint debugger.

[hidden fossil]

Would anyone be able to advise on patrol code for a swordfighter? More specifically, he or she follows your avatar while on foot, and if both characters get close enough to each other then you literally get slashed in the face.

[maiden wadi]

Doesn't sound like patrol code. Sounds like attacking code.

Patrol is moving between a set of points, optionally seeking combat targets.

Attacking is moving to target and then performing an attack ability.

[hidden fossil]

Actually, it's a bit of both. That's to say that if the swordfighter and the player's avatar ain't level with each other, then you don't get slashed.

This way you have a chance to dodge what's coming, and the swordfighter waits for a better opportunity.

In other words, he or she is strategic against the player and thus only takes a complete opening in your defenses

[maiden wadi]

I'm not really sure that that means. But you have to break this stuff down into tinier chunks.

• Patrol

• MoveBetweenPresetLocations

• FindValidCombatTarget

• Attacking

• MoveTo

• CanPerformAttack

• PerformAttack

These are two separate exclusive behaviors where attacking takes priority.

Patrol's goal is to just move around and search for combat targets.

Attacking's goal is to try to move into an attack position and then perform the attack. Some of the simplest BTs for this are nothing more than a MoveTo node and a second node doing your attack ability, which checks if it can attack forst or fails out if it cannot. If it fails out restart the tree and try to move to a better position.

[hidden fossil]

So essentially this would be the attack phase, with the patrol half referring to the proximity response portion.

[dark drum]

The Get Object Name is a getter function that doesn't pass by ref so it only returns a copy of the object name.

[snow halo]

is this uobject a C++ thing?

[dark drum]

uObjects is the base class from the majority of things in the engine. Every object is a uobject type. You can create you're own classes from uObject but they can't have world context without c++. This isn't always a problem though. One thing that might be a deal breaker though is that replication for BP based uobjects isn't a thing and requires c++ to add a uobject as a replicatatable subobject.

uObjects are very lightweight compared to say actors but there is a slight overhead to create them than compared to structures. However, they allow you to have hierarchy data structures with functions which can be very nice.

Plus if you decide to delve into C++ you're options get even bigger with instanced and edit inline flags.

Just something worth looking at so you can make an informd decision about whats best for you're project.

[steel shadow]

Is there a way to override animation Asset set in the editor with a play montage node ?

or do I have to use an ABP ?

[dark drum]

You need to use an animation BP if you want to use montages.

[dusky meadow]

Hi can i create a dictionary where the values are of different types ?
And can i make an array of arrays in blueprint ?

Anyone ?

[lunar sleet]

Use a struct

[dusky meadow]

I am attempting to set up an inventory system and i will be using structs for the items however items of different types weapons armour etc will be in different structs due to having different properties how do i create a struct that contains these different structs ?

[dark drum]

You could try using instanced structures but it might be worth looking at uobjects as these support hierarchy.

[dusky meadow]

Whats a uobject and how do i make one ?

[dark drum]

uobjects is the base class for all objects in UE.

[dusky meadow]

Doesnt that mean that the component will already be a uobject?

[dark drum]

Actor components are uobjects yes but, things such as actors and actor components have a ton of logic that runs just for them to exist in the world.

[dusky meadow]

What does that mean for my use case ?

[dark drum]

https://www.youtube.com/playlist?list=PLcwVLBaUNnHoujbPwOAdMgNtq1ShoHIGc

[dusky meadow]

I would rather develop a system myself that is why i am simply asking if its possible to do an array within an array or what people mean by making it a struct instead since i am already using structs ?

[dark drum]

Struct based inventories are pretty limited in my opinion. If you want more complex items they become difficult to scale and manage. Their only redeeming quality is they're easier to replicate.

[dusky meadow]

What alternative do you recommend ?

[dark drum]

a uobject based inventory with data assets for non mutable data. 😅

[dusky meadow]

What does that mean ?
Also looking into data assets they seem to be c++ and i want to stick with blueprints

[dark drum]

watch the series above. It'll probably answer a lot of your questions. As for data assets, you can create them in BP. You create a primary data asset to define a new 'template' and then create data assets from them.

[restive dune]

Hello, hope everyone's doing well. I'm having issues creating a save and load system.
Specifically I'm having issues loading pre-placed actors, as any time I save and load them, there is always a duplicate. But if they're placed dynamically during runtime it's all fine and there is no duplication. Is there a solution for that works for both pre-placed actors and dynamically placed actors? https://imgur.com/a/unreal-engine-weapon-spawning-HPl5xTp for images of the code I'm using what it looks like.

[dark drum]

This video goes over handling saving items, you'll probably be able take what it shows and adapt it to your system.

https://youtu.be/Z1wVW2iV5Oo

[restive dune]

Thank you. I'll give it a look and see what I can do

[dark drum]

Saving can get complex but it should give you the general idea of what you need to do. 🙂

[winged glen]

hi im having a problem where im trying to rotate a character around (or rotate the camera around the character) in a customisation mode. in my hierarchy i have 2 cameras attached to spring arms. the first camera is for when in customisation mode which is set to active and the other camera is the default follow camera which is currently inactive. instead of just the character rotating, the camera and also character rotates. have would anyone be able to help me with this?

[meager spade]

What's the intended way of playing an anim montage on loop? Sometimes this results in like 0.2s where the character will just A-pose (I'm still on UE 4)
I need it to loop until a condition is met where I simply call Stop Anim Montage

[dark drum]

Inside the montage asset, you can set it to loop.

[meager spade]

Okay so that would be my best option then. Might actually be nice since I can imagine some needs to loop and others are more of do A then B then C then repeat. Will try, thanks

[pearl mason]

Hey all I am having an issue with actor rotation not setting properly, its a controlled pawn and I run setactorlocationandrotation from server on the ThirdPersonCharacter blueprint which sets the locaiton just not the rotation. Any ideas?

Here is a snippet of the code

[drowsy gorge]

Hi

Rotation of a pawn is mainly controlled by ControlRotation. GetController from your pawn, and SetControlRotation on it.

[pearl mason]

Can that be done from server or does it need to be done on client?

[drowsy gorge]

Don't remember. I think if you have CMC Replication enabled, you need to do both.

Try Server only first, if doesn't work, do both on the server and client.

[pearl mason]

Didnt seem to work

Ik this is messy but just was testing rq

this is happening in a gamemode (serverside), and then the client event is in the player controller

[pearl mason]

Any ideas?

[final nimbus]

I'm trying to get an element within an array and change properties on it, but all Blueprints is autocompleting is "Get Copy". How do I Get Reference?

[maiden wadi]

If it's an object pointer, you cannot. You need to SetArrayElem. If it's a struct there should be a Get (by ref)

[final nimbus]

So I could get a copy, change parts of it and then call SetArrayElem?

[kind estuary]

Is this a viable way to make my character a static mesh character? or should i just create a new pawn

this character is a drone that inherits from a BP_Soldier character and has a skeletal mesh, that i destroy in the constructor, because the drone only uses a static mesh

maybe just make a new pawn for the drone and copy paste all the movement functionality (that is actually the same) ?

[maiden wadi]

Yeah, but you shouldn't need to if it's a struct array? There should be the by ref getter.

[final nimbus]

It's a UObject array, it's the input to a UListView in UMG

[dark drum]

A copy should be fine if it's an object based array. Modifying properties should do so on the object itself.

[mental apex]

Confused what to do if this is an array being returned :/

[dark drum]

Naa, the movement component is heavily tided to the character class, you could just make the drone mesh a skeletal mesh.

[kind estuary]

🫡

[mental apex]

Ah - think I've sorted it. I need to get response value => as array => for loop => as object from the element node.

[winged glen]

could anyone help with this? ;-;

[robust lance]

guys im so confused

GetInventoryItemBySlotID is a c++ function. it works everywhere...but for some reason in a loop like this

i get wierd output

if i call that function and statically give it a slot id, it displays the output perfectly

but in a loop like this, its wrong

in this case, im looping 0 to 15 because i know this inventory has 16 slots. i know the inventory has 10 apples in slot 1 and 2, and 5 in slot 3, all the rest of the slots are empty

but in the loop is shows 10, 10, 5, and then 5 for every other slot after that

if call the function like this

oops

like this, not in a loop

i can manually enter 0 through 15 and get the correct output...why is it wrong in the loop wtf

let me simplify it

[dawn gazelle]

it could be because the function in C++ isn't properly returning the value, so within blueprint it's utilizing the last returned value.

[robust lance]

bool UVA_IIIInventoryComponent::GetInventoryItemBySlotID(int SlotID, FVA_IIIInventoryItem& OutItem)
{
    FVA_IIIInventoryItem* Item = Inventory.Items.Find(SlotID);

    if (Item == nullptr) {
        GEngine->AddOnScreenDebugMessage(-1, 10.f, FColor::Green, FString::Printf(TEXT("%d: Empty"), SlotID));

        return false;
    }

    GEngine->AddOnScreenDebugMessage(-1, 10.f, FColor::Green, FString::Printf(TEXT("%d: %s (%d)"), SlotID, *Item->ID.ToString(), Item->Amount));

    OutItem = *Item;
    
    return true;
}```

[dawn gazelle]

FVA_IIIInventoryItem& OutItem

[robust lance]

it works everywhere....it works when i call it outside of the loop and manually enter the slot ids

[dawn gazelle]

It's a reference.

[robust lance]

but when the slot ids are passed from the loop

[dawn gazelle]

The reference is being kept in the blueprint loop.

If the code Set OutItem to an empty before returning false, then the problem should go away.

[robust lance]

but out item is reset on every call

how is it remaining in the bp loop?

returning reference to null still holding the old reference?

[dawn gazelle]

OutItem isn't set to anything when returning false.

Blueprints like to retain whatever was last set.

[robust lance]

ohhhh

is that specifically in loops?

[dawn gazelle]

No, it's with any node placed.

and that's been executed.

[robust lance]

well it works fine like this.....

one sec

apple, apple, apple, none

as it should be

[dawn gazelle]

That's not the same node though, each instance of the node is its own thing.

[robust lance]

ohh ok i get ya

so if its in the scope of a node

[dawn gazelle]

For example, if I did something like this, so long as that function generated a valid reference on begin play (and it remains valid), then any time I moved my mouse up or down the Valid path should actually execute.

[robust lance]

ok ok

makes sense

im not new to this, but i never knew this

[dawn gazelle]

It's one of the oddities of blueprints. Within C++ you always get a fresh value from the function's call.

[robust lance]

kinda makes sense though now i know

to help with flow, and perhaps safety

spent the last couple of hours manually entering slot ids and then putting it in a new loop lol

definition of insanity

i mean i have a bool returned to check for success. i put it there. why arnt i using it?

fixed

@dawn gazelle are there any other oddities like this i might have missed?

with blueprint

[raven sparrow]

the code seems to be working fine
I did manage to recreate the problem, by unchecking the Use Pawn Control Rotation in the spring arm
maybe that's the problem?

[robust lance]

the whole point of the bool was to check validity of the reference within the function to avoid extra functions and checks afterwards...i just forgot to use it:S

[dusky cobalt]

Does anyone know if its possible to hide variable declared in UObject blueprint from beeing shown in the instance editables? or I have to declare it in C++ so it's not visible here?

[robust lance]

but i didnt expect that kind of behavior, was so confusing

[dark drum]

I think you could add it to a category and then hide the category.

[robust lance]

i think ill replace the bool return type and have it return the reference and add success and fail execution pins. ive got a bunch of functions like that i need to optimize

[dusky cobalt]

How do you hide category? in C++?

[robust lance]

at least with the execution pins i can force not having to validate after the fact

[dark drum]

In class settings, there's a section for it.

[dawn gazelle]

This is another bit of odd behavior with blueprints... In the top example, you might expect that when you see "true" being printed, you might expect the "true" path execute but each executed node will evaluate the "Random Bool" node separately, potentially giving you a different value on each.

In the bottom node where I have the random float node hooked up to both inputs, the random float node is only evaluated once, and both inputs would be set to the same random value.

[dusky cobalt]

Thanks, worked, althought feels hacky 😄

[robust lance]

ahh

interesting

i dont think ive ever come across that one

[dark drum]

I agree haha. I do it from time to time though when there's a ton of stuff that's not relevant.

[robust lance]

but thats because that node is blueprint pure right? dont those get executed "if" theyre hooked when the node is reached that theyre hooked into?

[raven sparrow]

if you ask for the random bool twice in the same node, will it be the same?

[dawn gazelle]

Yep

[dusky cobalt]

actually im just gonna leave these variables in that ''children'' in Default and hide Default, it's only widget logic in the children so i guess its nice, but good to know this option, thanks

[dawn gazelle]

Like this you would end up with two different values.

[robust lance]

i dont think i would ever have come across that problem

[hidden fossil]

Bit of progress since I asked earlier about the patrol/attack matter. Right now, I've set the acceptance radius to 80 with a stop on overlap, pathfinding methods and the destination picked up from a reference to the player's location in the level. However, the swordfighter is still not moving toward his target. (As a side note, I should probably mention that the enemies are at different elevations, so in the context of a medieval species from a distant planet getting isekai'd to present-day New York City, some would be standing atop stalled buses while others are at street level.) What I need now is how to build on this so that the enemies actually start their apporach to the player's location.

[robust lance]

because i kind of subconciously knew/asumed blueprint pure functions were "conditionally" executed by the node theyre hooked into....since, well, they dont have an execution pin so something has to execute it:D

so blueprint pure breaks the left to right workflow and jumps left for shits and giggles XD

[winged glen]

i tried this but the camera seems to rotate around the character in a way that the camera is fixed so you can't see the character until the circle rotation is done, if that makes sense

[dusky cobalt]

blueprint pure just have different use cases, they are simple getters of the ''most current' value or it gets something that is static or in case random it just gets random value every time

[robust lance]

yeah thats how ive always written them. although i never read up on how they work, just assumed

and i havnt written many blueprint pure functions

makes sense for stuff that global, say, from your module, game instance or singleton clas

[dusky cobalt]

yeah or even for variables that you want to make private but are still possible to ''Get''

[robust lance]

yeah thats a good use case

well no, you could still just have a regular getter

deffo more for global access functions though, for persistent classes or static libraries

just avoids pointless pins

[raven sparrow]

so the camera stays in one spot and only changes rotation, not position

just to make sure, this code is in the character bp?

[robust lance]

hey why dont we have named reroutes in blueprint?

for ages i always had this idea of these "black holes" you could just plug pins in anywhere on the graph, give them a name

and then pull from them anywhere else on the graph

rather than a wired reroute.....like a wormhole reroute

[winged glen]

yep the camera stays facing forward. its positioned to be at the end of the spring arm so im assuming whats happening is that the spring arm is rotating but the camera itself is completely fixed on forward facing. and yes it is all in my bp_thirdcharacter class

[hidden fossil]

OK, it's complete

[robust lance]

like a wireless reroute pin where you can place the opposite end anywhere you want

[hidden fossil]

Ended up only working if pathfinding was disabled

[maiden wadi]

These are called variables.

[robust lance]

@maiden wadi what about when you need to cross function calls etc?

@maiden wadi you realise materials have this already right?

the named reroute node

[maiden wadi]

Yeah. But materials aren't ran on the CPU and operate entirely different than a blueprint does. What you're looking for are variables.

[robust lance]

where things are run is irrelevant though

named reroutes allow you to avoid crossed wires

variables alone dont

[maiden wadi]

Yes they do?

[robust lance]

and variables require setters....which when youre setting multiple variables from a single node and have to cross wires because of the output order

think of it like

a wireless sequence

@maiden wadi variables dont allow you to avoid all crossed wires, only creossed wires from variables

[untold ferry]

Is anyone available to help me out with something? I’m working on a weapon switch system from fist to dual blades, so far I got the weapons to switch but when I setup the animation blend it doesn’t work

[robust lance]

its particularly annoying in a function with a bunch of local variables where you need to be setting the variables in the function and you have a mix of crossed wires from different function outputs, having to cross the setters, etc

[untold ferry]

Tried doing it off this tutorial but the guy is not around to help or respond

[robust lance]

using a sequence lets you clean it up a little

[maiden wadi]

Named reroutes also require setters in a way. It has to be fed from somewhere. But you can't get that same functionality with an executed node kind of layout. It works in things like PCG and Materials because they're entirely pure. You can't really do the same thing in an executed graph because the execution is what determines what is ran.

[robust lance]

yet, but they dont have to follow through with execution

its just, here, you go over here into the void until i need you later

then ill pull you from a named reroute

just allows for a lot more organization

and it can prevent from having to manage a shit ton of local variables

cos theres a lot of times you dont need a local variable, but you just have to make one to make your graph clean

[maiden wadi]

How is that going to manage a bunch of local variables?

[robust lance]

it avoids a shit ton of setters with crossed wires

yeah youre technically stil setting them

but youre avoiding all the crossed cables

[maiden wadi]

You want to set properties without an execution line in a language driven by said execution line?

How do you determine at what point they're set? How do you then populate them with something else if you choose to?

[robust lance]

so your argument is "that isnt how c++ works so that isnt how blueprint should work"?

and its not just about variables

you do realise that the wires in blueprint are not needed right?

im not saying change the order of execution or how anything works....just a new way of visualizing it

like i said, theyve done it in materials....you can plug whatever pin you want into a named reroute, then you can pull from it at any other point of the graph.

in between the in and out of the named reroute, there is no wire

[sand shore]

It's definitely true that a "named reroute" concept like what happens with materials ... wouldn't be able to have those same rules in BP, but someone could totally make such a concept

[robust lance]

@sand shore why couldnt it have the same rules? i mean in materials its kind of a "soft" variable setter

is that what you mean?

[sand shore]

Execution pins, for one

[robust lance]

but what its really doing it making an invisible wire between 2 points

it doesnt matter

its 2 points in space, as long as they know what theyre connected to, execution is the same

think of it like...rather than crossing a wire, youre digging a hole and tunnelling it underneath the graph to pop out at another point

the connection is still tehre, its just visual

[sand shore]

So, just a single input and a single output pin, you mean?

[robust lance]

i mean you can plug whatever pin into an input, and thats whatever comes out of its output wherever it is on the graph

its still a connection, its just hidden from point a to point b

as in no wire

maybe when you select one of the reroutes you can see the actual wire

how i described it earlier, was a wireless sequence node

[sand shore]

Actually that's the case that I'm saying would break

[robust lance]

how?

[raven sparrow]

ok so I poked around in the default 3d person template

and recreated the problem, where the camera is facing forward, and the spring arm seems to be moving around the character:

• in the SPRING ARM, I toggled Use Pawn Control Rotation to off
• in the CAMERA, I toggled the same to on

so the fix could be switching those two, that is, in spring arm to ON and in camera to OFF

if its something else, I have no idea what, but someone else here will definitely know

[robust lance]

nothing changes in the structure of anything, only the visual representation of the structure

[sand shore]

I'm not saying that it is going to obviously break, but, having attempted to PR something for K2 pin handling... it just seems like some obscure case will struggle with this

Conceptually? It makes your graph harder to be understandable to new maintainers, and you're going to have non-obvious conveyance of the actual control flow, but yeah what you're saying could work

If you're willing to edit the engine I think you could try it out yourself

[robust lance]

i guess thats correct yeah, people using it wrong

but, thats the case for unreal engine as a whole, let alone blueprint

simplified its just wireless sequence pins XD

perhaps a different one for execution and access

just a simple example you cant get out of with local variables

[winged glen]

i tried this and it still doesnt seem to work ;-; but thank you soooo much nonetheless, i will play around with it some more to see if i can get it working. thank you again!!!

[robust lance]

shitty mockup, but gives the gist

obvioulsy theyed have to be named...and they could even be full on output reroutes from nodes themselves to reroute all outputs, rather than a reroute for each putput

and you wouldnt lose order, because you could just hover the reroute to show where the original wire would be

[snow halo]

Is this a good method of increasing the pancakes on top of the pan every time you hit the kitchen stove / pan actor for example?

(I know it's probably not that good )

I could also very well choose the lazy route and just spawn the whole cake on top but for some reason I wanted to do it this way. Not sure if its the best choice tho

Right now Im running down the kitchen line like a stressed out waiter asking each pancake if it wants to be on the plate. And there's a lot of back and fourth between stove & cake logic

[robust lance]

its just 2 points that you hide wires between

until you want to see them

not a fix all, but something to ease the spaghetti craphs

@snow halo are you aware of loops?

[snow halo]

good point, thanks

[robust lance]

huh

[snow halo]

I am yes, good point on that

[robust lance]

oh sorry i only noticed the first image

maybe your first image could use some "named reroutes" 😉

[maiden wadi]

Unsure what PanPlaced is for out of these images. But for the branches after that, it should probably be a simple integer incremented. You can place your components in an array in order on beginplay or similar and simply increment the integer. For each loop over the array and if IncrementedInteger > ArrayIndex then set the component visible. Else invisible. Start the integer at zero. On first hit it goes to 1. One is greater than 0 so index 0 is revealed, rest are not. Next hit 0 and 1, etc etc. And you could even clamp that at max so that other logic later can remove them if needed by simply decrementing the integer. Much less complicated state to track and manage than five booleans.

[kind estuary]

im using this to move a pawn

it moves it too suddenly

its a drone so, id like it to move like a drone, with acceleration

but since its a pawn it doesnt have the CMC

any tips ?

[surreal peak]

Isn't there like a flying pawn movement component you can use?

Or floating pawn

Something like that

CMC is not the only one

[kind estuary]

yeah there's the floating point movement

ok will check it

thanks @wild hull 🫡

[surreal peak]

Other than that, if you want acceleration you gotta code acceleration

[kind estuary]

yeah

and that would require the tick event right

dont like to use tick events

[surreal peak]

Yeah

[surreal peak]

Nonsense 😅

Tick is meant to be used for things that change over time. Or happen every frame

So this is exactly the correct thing to use

[kind estuary]

yeah, though im not always moving the drone

just sometimes

maybe i can use Get World Delta

that might skip the ticks

[surreal peak]

Doesn't matter. You are updating the acceleration over time

[kind estuary]

else gonna tick like crazyy

[surreal peak]

You can optimize it and early out parts of it if you aren't pressing input

[surreal peak]

That's a stupid thing to get hung up on

You are limiting yourself because you heard somewhere that tick is bad

Your code can always be bad, it's not a tick problem

If you call expensive shit from a button press it isn't any different or better

[kind estuary]

okay will use the tick event 🫡

[surreal peak]

Also, you are using tick in your screenshot already

The input is evaluated on tick and triggers each frame

Also unless you are using unreal engine 4, please use Enhanced Input

The old system is not meant to be used anymore

[kind estuary]

yup im a UE4 old school rapper

though i think the old system is great

it works

[surreal peak]

It is simplistic and thus a bit easier to use

I can get behind that

But more complex setups are difficult

And the whole context stuff of enhanced input is absolutely fantastic

But well

Your axis events are evaluated in the tick of PlayerController btw

Or more precisely in the UPlayerInput

So yeah you are already "using tick" in theory

There are only a handful of things you shouldn't do on tick and that mostly resolves around doing things that aren't meant to be there. Otherwise tick is fine

[kind estuary]

i tried to avoid tick whenever possible. and disable it when the actor is not moving

for example

[surreal peak]

Stupid example: You want to do something when you press the spacebar. There are people that set a Boolean when the space bar is pressed and check that Boolean on tick to do said something

[surreal peak]

Disabling tick on things that don't utilize it is great

But avoiding it when it's clearly the right choice (e.g. movement) is not great

[kind estuary]

but i think i have an OCD with the tick

[surreal peak]

Possible

Lots of things you are using are coming from tick though

Just think about the fact that the gameplay code is just a big loop. Somewhere in that loop it handles ticking actors for that loops iteration. But everything else also executes in that loop. If you press a key every frame (unrealistic but just an example) you also execute the code "on tick"

If there is something that has to be done every frame and you need to account for Delta time. Then you do it on tick.

And if that something sometimes doesn't call, then you just early out your code

[kind estuary]

so maybe i should skip the input and do the movement all in the tick

[surreal peak]

The input is needed to know that the player pressed the key

But that's all

CMC only gets an input vector from it

AddMovementInput

That's usually all someone calls in a simple CMC setup in their move axis input events

That sets a vector which is used on tick in CMC

World Space vector fwiw

If two keys are pressed in the same frame it will add to the vector

Whenever the CMC takes the vector to use it it sets it back to 0

And that's as far as the input event goes

The input vector is then used to calculate acceleration

And that is applied to the current velocity

And the current velocity is then used to move this frames distance

[kind estuary]

yeah got it. thats how its done in the Twin Shooter template

[dusky meadow]

Hi can i create data assets at run time ?

[dark drum]

You can't.

[dawn gazelle]

Yes, they are objects, however, you can't directly save them, only data about them.

[dusky meadow]

Im stuck because say i have a sword the data asset or data table would have set values however what if when i place one into a container i want it to have less durability or if i want to change the players weapon to reduce durability how would i do that ?

[dark drum]

Does it actually work though? I know there's something that just crash the engine unless done a specific way.

[dawn gazelle]

It's no different from spawning an object.

[dusky meadow]

?

[dark drum]

Interesting, I might have to give it a test. It's always good to use and abuse a system. 🙂

[dawn gazelle]

The Data Asset or Data Table should only be used to represent the static data about the item. Data that needs to be changed about any specific item should be stored within an object, or within its own structure in some other object.

[dusky meadow]

Ok how do i store that data in its own struct or another object ?

[dark drum]

Generally data assets are used for data that doesn't change. In terms of items you'd probably have a base item (uobject as a parent) that you can then create at runtime. This would contain data that changes like durability, quantity or any other various that might change.

This object would then have a reference to data asset for its static data.

[dusky meadow]

How do i do that though ?
Create at run time i mean

[dawn gazelle]

Create a structure, have it hold some values you want. Add that structure as a variable to something.

[dusky meadow]

Like this ?

[dusky meadow]

?

Is this the correct way to do it ?

[tight pollen]

some ideas?

without changing collision

[dusky meadow]

Can someone respond ?

[dark drum]

Did you watch that series I sent? It gives you a lot of information regarding building inventory systems that you can built on.

Episode 1 is all about data.

[tropic peak]

I'm developing an interaction system. When a trace hits an actor it is supposed to display a tooltip (widget animation fadeIn), and when it loses focus it should do a fade out on the tooltip widget.

New interactable can be either null (trace is not hitting anything) or a new actor (or the one I hit earlier)

My entry point is the result of a function FindClosestInteractable which returns the AC attached to the interactable actor

An interface function SetIsFocused is passing the bool value to an interactable actor widget component, which then either plays a fade in or fade out animation

But I'm stuck at the part in the middle of it because since the interaction detection is based on an event tick it can trigger FadeIn multiple times

What kinda made it work is this flow:

However if the trace does not hit anything I'm setting CurrentInteractable to null, meaning when it hits the part marked with a red arrow - it will throw a null error

(and yeah I know that validated get doesn't make much sense but it's the only way I got it to work..)

This is the result of the above flow, and that's 100% what I want to achieve, but I need to figure out how to fix that validated get is not valid output

[maiden wadi]

You need to hide the tooltip before setting the new target.

Oh, those are two different pointers, missed that.

Just need a sequence then.

[dark drum]

If the last interactable is null then there's nothing it needs to do anyway. Also, last interactable is always being set to the current one so the current and previous will always be the same.

I would check the interactable to see if it's the same as the current interactable, if not, then you set the current to the last and then remove its focus if it's a valid actor. Then you would set the current to the new one and update its focus again.

This way you only update the current and previous interactable if the new one is actually different.

[tropic peak]

Oh man my brain is tangled in the current/previous spaghetti I'm having a hard time understanding what you're trying to tell me, I've been looking at this for too long

[maiden wadi]

He mostly just needs a sequence.

Hide old tooltip(if valid)
then
Set LastInteractable
then
ShowNewTooltip(if valid)

Rather than putting these all on the same line, this should be sequenced in three separate lines so they don't stop each other since all three need to run.

[tropic peak]

Okay, let me try this.

Is this what you had in mind @maiden wadi ?

[maiden wadi]

Correct. But you still need the != check before the sequence and you need to set last interactable from CurrentInteractable

[tropic peak]

where do I want to set it?

OH.

[maiden wadi]

This all looks correct. Assuming that CurrentInteractable is a local variable and LastInteractable is a class property?

[tropic peak]

They are both variables (AC_Interactable type)

What ends up happening with these changes:

Oh I'm a fool

duplicated the SetIsFocused node and forgot to change the bool

it works.. you saved me a massive headache. I was losing faith in my ability to think

[dark drum]

I would do something like this.

[maiden wadi]

My actual code for this is the following. Pretty much the same, but with a delegate broadcast at the end.

if (NewHoverTarget != CurrentHoveredTarget)
{
    if (IsValid(CurrentHoveredTarget))
    {
        UpdateHoverForInteractable(CurrentHoveredTarget, false);
    }

    AActor* OldHoverTarget = CurrentHoveredTarget;
    CurrentHoveredTarget = NewHoverTarget;

    if (IsValid(CurrentHoveredTarget))
    {
        UpdateHoverForInteractable(CurrentHoveredTarget, true);
    }

    OnHoveredInteractableChanged.Broadcast(OldHoverTarget, CurrentHoveredTarget);
}```

[tropic peak]

I was getting terribly tangled in the variables for hours, current, previous, last, I couldn't focus on it at all. this was probably my most frustrating coding experience ever

[dark drum]

Mine is a little more complex. 😅 I do however check for differences in the component or even hit index whilst also finding the closest.

[tropic peak]

even though the problem wasn't that complicated

yeah about finding the closest.. do I need that if I'm using traces? after all the trace will only hit the nearest one

[dark drum]

Its one of those things where the order is everything. These can sometimes take time to feel out to get the order.

[dusky meadow]

Im watching it now

[maiden wadi]

The full code in that function is more complex. There's a bit before that which determines the hovered component based on the game style. I use the same idea for RTS/TPS or whatever game style. Whether their pawn is looking at something or they're hovering it with a mouse, etc. But the final setter is pretty simple there.

[dark drum]

It depends. Using a sphere trace can sometimes give you results that aren't what you expect. I use a thin sphere trace to find a point that i then do a larger sphere trace from and then find the closest to that point.

[tropic peak]

cool, that's clever

I think for my needs (isometric narrative) what I have now should work just well enough

there's not much need for precission

but seriously I'm so relieved. I couldn't sleep last night trying to figure this out, such a stupid problem

now I just need to integrate my hold/press mechanics into this and I'm done

thank you guys, a massive thank you

[dark drum]

This is probally OTT but... for the sake of a few extra lines, it's nice to know I can do something based on the physics material being different. 😅

[maiden wadi]

That's a neat idea. What do you use it for specifically? I haven't gotten that granular yet.

[dark drum]

I like the idea of being able to have different components in an actor have their own interaction type. So something with 2 buttons for example and depending on the button it might show a different prompt and when interacted with, triggers a different event.

I also experimented with applying interactions to ISM/HISM's where when you look at an instance it can do something specific to that instance. (I could do with doing more experimentation though)

When i applied the idea in C++ i thought I'd add the physics material as well. The first thing that pops to mind is where you're painting a surface and you can paint the unpainted bits where its controlled by a physics material or something.

On my interaction comp, I can control what it specifically can trigger a focus change. It would have been better to have had it on the interactable but I wasn't sure if it was worth the effort to have it on a per interactable level.

I tend to just have it on the actor and component level.

[maiden wadi]

Hmm. Certainly worth a consideration later if I get into more TPS stuff maybe. ATM I'm debating on pulling the trigger to diving into ECS systems. I've heard rumors that they're making changes to the component movement stuff to make it a lot more performant, but 🤷‍♂️ Could be 2030 or never before anyone sees it.

[dark drum]

Yea they like to take their time.

Does anyone have any idea why this node would not return a static mesh? (The get component by class node)

[maiden wadi]

It should return it if there is one owned by that actor.

It is owned by the actor, not just attached, right?

On a side note. Make sure to show exec pins on that GetComponents call. Save a minor amount of frame time. 😄

[dark drum]

Yea, it's added in C++.

[maiden wadi]

Yeah that's odd. That node 100% should pick that up with UMeshComponent as the class. Should pick up any class that can be cast to that, so self or parents.

[dark drum]

Yea, after a little more testing I think it might be down to something else I'm doing but I'm not sure why it would affect that node. 🤔

Although I am trying to dynamically add components which could be messing the component list up. 😅

[maiden wadi]

It shouldn't as long as they're registered.

[dark drum]

Anything jump out? This of course could be garbage but i'm effectively duplicating a component from one object to the actor.

Not sure how this would affect already added components but this component stuff has a lot of layers. 😅

[maiden wadi]

Actually, jumping through code I'm not even sure they need to be registered as long as they have that actor as the outer.

[dark drum]

Odd, i have another object (same parent) thats defined in C++ that uses GetComponents instead and that finds it. 🤔

[maiden wadi]

The copies maybe. I'd be a tiny bit nervous doing a copy before finishing registrations without digging through what all that affects.

Like if there are preregister flags that get set wrong before registration so it doesn't take normal initialization code paths. I dunno.

That's also odd

I'm not sure if I'm reading this wrong, but ForEachComponent_Internal which is used to populate that getter only seems to go through OwnedComponents.

And if you look in...

UActorComponent::PostInitProperties() It doesn't add these if they're "instanced", it relies on something else to add them to that list.

// Instance components will be added during the owner's initialization
if (OwnerPrivate && CreationMethod != EComponentCreationMethod::Instance)
{
    OwnerPrivate->AddOwnedComponent(this);
}```

So if you add an instanced component at runtime it may not work.

[dark drum]

I assume that's what the AddInstanceComponent() is for.

[maiden wadi]

EG owner has already initialized. In comes and instanced component that never gets added.

[dark drum]

But yea, components have some layers. It's difficult to follow at times.

[maiden wadi]

That only does this. Which is likely the array the owner's init reads from.

void AActor::AddInstanceComponent(UActorComponent* Component)
{
    Component->CreationMethod = EComponentCreationMethod::Instance;
    InstanceComponents.AddUnique(Component);
}```

What hapens if you comment out that line?

[dark drum]

The component does show up in the details panel. Granted I have to add another component first before it shows up, so i might be missing something else.

[maiden wadi]

Yeah, but who knows how that was coded. It may not be reading from owned components either in any way.

[turbid notch]

hi everyone - im looking to do something thats probably pretty basic but is giving me a lot of trouble. I want to make a window shutter open and close on a slider, but the blade pieces are moving in a spiral and not coming in towards the center as i want. I've been losing my mind here.. any ideas?

[dark drum]

It looks like registering them as instances needs to be done so it doesn't mess them up when it runs the construction script with the looks of it.

[turbid notch]

This is my graph as of right now

[maiden wadi]

IMO you might find it simpler to first set this up as a timeline. But realistically this will be much more performant and easier to use in gameplay code as a simple animation played on a skeletal mesh if you can import it from a 3D program like Blender.

[turbid notch]

Thanks for responding - generally yeah but I'd like to it update live in response to a light sensor I'll eventually hook this up to

[maiden wadi]

I would start with a timeline. You can just manually output your rotations and locations from tracks there for each piece. It won't be the best performance, but it won't be much different than what you have atm.

And if you decide later to redo it into a skeletal mesh and animation, it's mostly deleting the timeline and putting the play animation calls into the same spots logically.

[dark drum]

The blades actually just rotate around a single point so other than updating their rotation, there shouldn't be anything else you need to do.

[dark drum]

As an FYI, it doesn't seem that code is responsible for that node breaking. I removed it all and same thing so it must be something with how I'm adding the static mesh component is C++ resulting it in not being picked up in BP.

[turbid notch]

Sorry - I'm pretty beginner. When i had one blade hooked up it moved towards the center and back as expected. So I'd ideally like to just rotate that movement around the center so all the other blades do the same thing.

The rotation part is where I'm having trouble

[maiden wadi]

Lul. 22,640 floating texts. 30fps. I'm normally at ~100fps. But considering I'm shooting for a few hundred entries and not 22k, I don't think I've got much performance worry. 😂

[turbid notch]

Hmm. Can you explain why i'd make it an animation if I want it to update live? Would said animation play back and forth on a sensor input if I wanted?

[maiden wadi]

I'm confused by the question. Animations are meant to update live.

Like running. Even opening a two bone treasure chest, etc.

[turbid notch]

right right

[maiden wadi]

It's the same general idea. You make a window thing where each shutter thing has a bone and animate them in Blender. Then it's as easy as calling PlayAnimation in Unreal. And it can play forward or backwards.

Slightly more sane FPS at 558 entries. 😄

[turbid notch]

hm.. maybe I've been overthinking it

[slender dagger]

Is there any sort of way to determine whether something should be stored in the game mode vs having it's own distinct manager class?

[turbid notch]

i did eventually manage :)))

[dark drum]

Gamemode only exists on the server which can affect the decision.

[maiden wadi]

One other good case is whether it needs to be modular. It can be nice even on a major actor like GameMode or GameState to make a component the manager if your logic can be generic an reusable in many game types.

[pearl mason]

Anyone have any idea why I cant rotate a player thats possessed?

Having issues rn, I have tried absolutly everything and cant seem to get it to work

SetActorRotation, SetControlRotation (Server and Client)

[robust lance]

are there any replication issues when using arrays and maps within structs within structs?

USTRUCT(BlueprintType)
struct FVA_IIIInventory : public FTableRowBase
{
    GENERATED_USTRUCT_BODY()

    // How many slots this inventory has
    UPROPERTY(EditAnywhere)
    uint8 Size = 8;

    // The items held by this inventory
    UPROPERTY(EditAnywhere)
    TMap<uint8, FVA_IIIInventoryItem> Items;
};

USTRUCT(BlueprintType)
struct FVA_IIINestedInventory : public FVA_IIIInventory
{
    GENERATED_USTRUCT_BODY()

    // Child inventories linked by slot id and inventory index
    UPROPERTY(EditAnywhere)
    TMap<int32, int32> SlotInventoryPairs;

    // Private inventories reserverved for specific use cases, such as equipment that requires specific items to function
    UPROPERTY(EditAnywhere)
    TArray<FVA_IIIInventory> PrivateSubInventories;
    
    // Public inventores accessible and usable by the player
    UPROPERTY(EditAnywhere)
    TArray<FVA_IIIInventory> PublicSubInventories;

    // Parent inventory id if this inventory is within an inventory
    UPROPERTY()
    uint8 PrentInventoryID;

    // Parent inventory slot that this item exists in
    UPROPERTY()
    uint8 PrentInventorySlot;
};```

this can potentially create infinitely nested inventories within inventories. am i going to have to handle replication manually?

[wide imp]

can someone please explain to me what things need to be ran on the server and what things need to be ran on all clients?

[robust lance]

anything that defines game logic and flow needs to run on the server

you can run on client and server, but the server needs to be the authority for things like player position, health, ammo, calling functions like shooting, etc

[thin panther]

Except in some cases for Co-op games.

When doing a listen server, they're never really safe as the server is one of the clients, making it susceptible for the host to modify things. If this isn't a risk for your game, or the risk is negligable to player impact, then it can be perfectly acceptable to charge ahead as a client authority with some things to make things simpler.

[robust lance]

that

basically if something can be manipulated by a player that affects your game as you dont intend, consider that to be server authoritive

[wide imp]

so for example, i have a player with a replicated health variable, and on event anydamage (server ran) i decremenent their health. this health variable is on rep notify. on rep notify, if the health is <= 0, i want to kill the player. why is the onRep notify for health change being ran for every client when only one of the client's replicated health variable is changing?

[robust lance]

for example, take left 4 dead. from what i remember shooting AI zombies was entireley client authoritive as there was no delay to them taking hits

[thin panther]

Why wouldn't it?

It's pretty common for other clients to view their teammate's health.
Or for the player to die on their end as well

[robust lance]

or maybe it was client authoritative with some very loos server side distance checks or something

[wide imp]

i thought onRepNotify only calls on the client's replicated health variable is changing

[robust lance]

it sends to all clients, its updating the game state for everyone. if you only want the player to know about his own health you need tocode that in

[wide imp]

with is locally controlled right?

[robust lance]

yeah

[wide imp]

but regardless the server needs to despawn that player on the server regardless if they are locally controlled

[robust lance]

i mean its not gonna stop cheaters from still being able to know other players health cos they can intercept that check, the server is still sending the data

[wide imp]

not worrying about cheating as of rn

just want to get this working

[robust lance]

whats the issue with the hp being replicated to everyone?

[wide imp]

thats not the issue

[robust lance]

or do you mean its changing the health of every player?

[sand shore]

You're going to run into issues with Map being replicated at all

[wide imp]

so the server sets the actor hidden in game, and then it calls Multicast to set collisions

collisions should be dealt through the multicast not server right?

[thin panther]

Then I completely misread your problem, apologies :P

[wide imp]

no thats okay, i just wanted a better understanding

i was using an example

[robust lance]

@sand shore the map doesnt need to be replicated, thats just internal to link slots and sub inventores when something changes

[sand shore]

well then say it doesn't need to be replicated

[robust lance]

sorry

[sand shore]

but it won't be replciated - just fyi

[robust lance]

ok thanks.

[wide imp]

quick question, when would i display a UI, server check -> is locally controlled -> call here, OR **multicast ** -> is locally controlled -> call here

for the death screen UI

i assume multicast.

[robust lance]

so there shouldnt be any issues with items and the 2 arrays of sub inventories even if i have say, infinite(although there is packed efficiency that decreases at every nest so youll never get to infinite)?

[sand shore]

Server -> Execute On Owning Client RPC

You also could have a death multicast and put a Is Locally Controlled check in with all the other on-death things

It's worth weighing the pros/cons of multicast vs OnRep. If players are really far away, their client won't always see the multicast. So if they get really close suddenly, they won't necessarily simulate the death event as you expect.

OTOH, with the OnRep, you just know the state of the variable, you don't know when that state actually occurred. So its possible that somebody could come by the dead player a minute later and then it looks like that player just ragdolled even though they've been dead for a minute

Multicast vs OnRep isn't a right / wrong type of thing, they're both important tools

[sand shore]

I think the net driver will make packets, and that the game client will be able to unpack them... but you may run into performance issues on either client or server

[wide imp]

my health text binding, why isn't the text updating when the health is decrementing? note: event anydamage is run on server

[sand shore]

Do you have two players in your game right now?

[wide imp]

yes

[sand shore]

Take anything you're using with a PlayerIndex and throw it into the bin.

[wide imp]

doesn't it take the player owning the widget?

[sand shore]

User widgets have a OwningPlayer which is a controller, You wanna do GetOwningPlayer -> GetPawn -> Cast to BP_FirstPersonCharacter

[robust lance]

@sand shore thats what i was worried about. i know when it comes to arrays it only replicates the changes right? just wondering how that is handled with nested arrays like this. say i change the bottom most array, does it need to replicate the whole chain or just the bottom one that changed?

[sand shore]

PlayerIndex really only works if you build everything around PlayerIndex, and that's really tricky to do

PlayerIndex's automatic behavior (mostly to support this PlayerIndex 0 use case) makes things more confusing, but it still won't actually help you in your UI

[wide imp]

okay regardless with that change the health is still not updating on the client ui

is something wrong with this?

[sand shore]

how did you specify the binding?

[wide imp]

i just pressed create binding

[sand shore]

Have you tried the BP debugger?

I would verify that this binding is called, and that the server's AnyDamage is called

[wide imp]

i shoot a client and its updating the health on the server/client lol

[sand shore]

When players die, does it immediately unpossess the pawn?

[wide imp]

for now i just want to setup the health being decremented

on the text

this is running on the server

and this is being called everytime heath is modified

i dont see anywhere where im specifically changing the health variable on that client

[sand shore]

Well this should work, the only reason why it wouldn't work is if that cast failed, or if you're trying to display the health of both pawns on both clients

[wide imp]

thats all the code for it 🤷‍♂️

[sand shore]

Or if the binding isn't set up right - but you say you just created this binding

[wide imp]

yep

when client A shoots client B the Client C (server) decrements its health from 100 -> 60 on the text

as if it was shot twice

correction

if client A shoots client B nothing happens but if client A shoots the server (client) it works.

well somehow removing this else statement fixed it..

oh because 0 is not > than 0 lol so the first shot sets it to dead

[untold ferry]

I managed to make a working system, but there is a glitch here in the video that I don’t know how to fix

Also it only draws one blade, how would I be able to sequence both of them

[dreamy nacelle]

Sending this here as well, just having a super weird problem with actors not in their original correct locations in the map only in a packaged game, never heard of or seen this before so could use some ideas if anyone has any

[lofty rapids]

are you loading these dynamically ? or are they "placed" in ?

[dreamy nacelle]

They're placed in, just static actors in the level

The places they appear in when loading into the level is the same spot where they would be if their 'relative' location to the actor they're attached to became 'absolute', so it's like their losing the location that they're supposed to be relative to

[violet abyss]

Hi, does anyone have any ideas on how to make a game like openfront.io but in unreal in terms of grids and what not? Its rather simple when it comes to gameplay but Im having trouble finding a good way of making grids and territories in bp.

[wind saffron]

ooo yea thats a good idea, i like that game a lot. in a performance side i only know that u would want to try and make it as little draw calls as possible. where each grid point (for examples they are all planes) we can use the material custom data to change colours without using different materials.

for how to create the grid itself. i guess have a manager actor that spawns all the points in.

[kind estuary]

i have a character that is possessed by the player and then the same exact character is also possessed by the AI. Should i create a new child class just to remove the camera and spring arm? kind of silly

can also destroy component in the construction script

[dusky cobalt]

why does your parent have already camera/spring arm when then you create children classes of it (something to posses or unit)?

make empty parent, then 2 child classes from it
->camera
->unit

[kind estuary]

thats exactly what i meant. so i meant create a parent with only the unit no camera that is possessed by AI, and the child that is possessed by the character has no camera. the thing i want to know is if this is worth it, or the camera in AI characters is just fine

chatgpt is saying to not worry about it 🤨

[dusky cobalt]

well chatgpt is giving you anserw based on how you asked the questions and its always very prone to suggestions so it will agree with you instead of giving you real feedback

and yes its a must and it's object programming, i dont understand ''if its worth'' in this case

camera pawn in rts game doesnt need to know shit about rts units/buildings so it can be just pawn itself and d oesnt need to inherit from the same base class as unit

why would you want to have pawn that is split into camera and unit?

[snow halo]

I have many of these furnace BP instances into my world

I dont to do this logic on all of my furnaces at the same time

Im only looking or working with one furnace for example

[kind estuary]

in this case is not exactly an rts

its like a stealth game like commandos

[dusky cobalt]

ok need more context then what you really need camera pawn to inherit from the same base class as units or whatever else

[kind estuary]

i dont have a camera pawn. i simple have characters. i will have soldiers, drones, tanks and choppers, for now.
so you are controlling only 1 soldier at the time.
for the drones you have enemy drones that move by checkpoints, because ai wouldnt be able to just use AWSD keys, so it moves them by checkpoints.
but you can also have your own drone, but you move it with AWSD keys.

So they can even be the same class

but i have to destroy the camera at begin play for the AI drones. Makes sense.

And make the drone have both the functions that moves with AWSD and the by Checkpoints, but call them from the controllers

the alternative is to create a BaseDrone, and in this you have only the static mesh and the functions.
then inherit from it a BaseDronePlayer, that is the same but with a Camera.

[dusky cobalt]

BaseClass for all
->drones
-> all others with camera

your functions from player controller should just be calling to the thing CurrentlyPossesed

possibly by interface if they all have different implementation (drone might have other ''W -Move Forward'' than a Knight

[kind estuary]

though chatgpt raised a valid concern. what if you capture enemy drones, wouldn't it be nice to then control them ?

hmmm he is right

[kind estuary]

🫡 exactly

i already have a BPI_Pawns in my baseclass

with MoveForward and MoveRight

[dusky cobalt]

if you have lots of the same functions for different children i would probably make component and put it on all Controllable pawns, and then inside each class i would bind to the components calls

so component would have MoveForward -> OnMoveForward, and then class would bind to OnMoveForward -> class function

and then you can hve generic logic for ALL and not need to repeat yourself in each class if there are shared parts of logic

[kind estuary]

🫡 yeah that one sounds great

so in that case you would then just create childs of the actual component not the pawns

the pawns could be different but use different childs of the component that moves

[dusky cobalt]

you don't inherit from component, component has just events/methods that are called from player controller,and then inside each class (knight,drone) you bind to these events and tell what should happen

and component is put on base class of knight and drone so you dont have to put it2 times

[kind estuary]

perfect 🫡 💪

thanks @dusky cobalt

[granite nacelle]

my npc only uses one of his attacks in the select node even though there are two of them, pretty sure its the code but I cant identify which part of it

[snow halo]

Does this node also Get Widget Blueprints?

[lunar sleet]

Widgets are not actors, no

[snow halo]

gotcha, i was hoping to hit all blueprints with one node, perhaps there's no swiss army knife node for that

[lunar sleet]

You can maybe add all those widgets to an array on creation, and then pull from it

[snow halo]

of what type?

[lunar sleet]

Widget probably

[snow halo]

but I also wanna work on actors

[lunar sleet]

What are you trying to do with this wide net

[snow halo]

anyway, nvm there's probably no one node to hit both birds actors & wb with one stone

Im trying to centralize this code even more

one interface to kill them all

I'll just create a new interface for all these named "KillAll_Interface"

[sand shore]

Is there a “GetAllObjectsWithInterface”?

But also, why does it look like you put all the executable nodes on the same height, even the Completed wires?

How do you keep track?

[snow halo]

1. There is no Get Objects unfortunately
2. what's the problem with this?

[sand shore]

Dang

At first I thought you were getting all actors every single time you found a widget. But then it seemed like maybe that wasn’t it- hard to tell what’s connected to what

[thin umbra]

Are there any unreal discord servers besides this one for dev?

[sand shore]

And you’re either putting everything on one line or those completed pins are also calling the loop body

[gray stag]

Hello everyone, so I'm super new to unreal. I'm trying to set up the controller to have a pitch, yaw and role so simulate more or less how an airplane flies. I am able to give it that function in a character blue print using the "Add Controller Pitch/Yaw/Roll Input" however they do not function as expected. For example, if I role the then try to pull up, the player would move up but relative to the world, not he objects current location.

[sick sky]

there are others, but honestly this one is the most active and with the most helpful people

[sick sky]

Add Controller stuff is in world coords

if you want it to be relative you need to use something else OR modify the values

[gray stag]

I'm currently trying to use "Combine Rotators" with the "Set Relative Transform" but it doesnt seam to be working.

[solar bone]

I'm trying to get input running in my 2d game sequencer so I can make cutscene. I have dialogue system running and I want a cutscene where if I press X then the dialogue continues. Is this even the correct way to use sequencer for this type of cutscene with dialogue system?

[pseudo otter]

is there really no method on adding images directly to blueprint graphs? sometimes algorithms are hard to explain in text, or there are visualizations (eg, boss phases, please do not question why I am not using ai trees)
that I have to go back and forth in gameplay to make sure i got things right

adding an image comment or video to the blueprint graph will make things so much more designer friendly, and maintaince friendly, similar to general flowgraphs

[pseudo otter]

make a blueprint function library, In case you have to make a script change

include those functions in there

[primal tangle]

Hey, is there a way to finish timelines early in blueprint ?

I know there is a stop event, but where the hell does the execution flow go afterwards ?!

[hardy merlin]

Is there an easy way to mark multiple anim sequences as Root Motion at the same time?

[hardy merlin]

from experience, Finished only is called when the timeline hits the end.

[hardy merlin]

Yes there is: the Property Matrix, found under the Asset Actions header.

[primal tangle]

Yea finish is not called, but it just doesn't make sense that stop doesn't have an execution flow

[hardy merlin]

Timelines are pretty weird. You should be able to work around it with a Sequence node.

[primal tangle]

makes it kinda useless, but it can't be that useless rlly

[primal tangle]

I'm in a situation that I want the Player to face a specific direction, let's say another actor when He overlaps with a box collision.
so I didn't want to set the player's camera rotation instantly, so I decided to use a Timeline.
and I need the character to play an animation right after facing the other actor, and the timeline length is 1, but sometimes the player's rotation is not that different the LookAt rotation, and Player ends up facing the other actor before the timeline finishes, So in that case I want the Timeline to be finished early

but I don't know how

[primal tangle]

I don't think this will work properly in my case

[hardy merlin]

What you're describing can be handled by the Rotation Rate of the Character Movement Component. You just need to approrpriately turn off "Orient To Movement Direction" and "Use Controller Desired Rotation".

You could also do it manually, increasing the character's rotation each frame until they are facing the direction you want.

[primal tangle]

but then the code is in tick, i don't want to use tick.
this is how I'm doin it,

[hardy merlin]

Why not use tick? Tick is for things that have to happen on every frame, and movement interpolation is part of that.

What if you used a Task instead?

[primal tangle]

and it works really, but not in all cases, cuz right after I'm playing a Montage, and if the ControlRotation only differs a little with the desired one, Player Ends up facing the desired direction earlier than 1 sec(the length of timer). I'm just lookin for a way to finish it early

[hardy merlin]

What if you used a task instead?

[primal tangle]

what task

[primal tangle]

like this ?

or you mean somethin else specifically

[hardy merlin]

You're not going to get around using a tick here because you need the character to change a little every single frame. But a task can let you wrap that behavior and interrupt when appropriate.

[pseudo otter]

ah nvm

[primal tangle]

I know like there are AI Move To tasks, that we can use, but I think I'm gonna have to make them in c++ if I want a custom one. haven't done it before tbh

[warm notch]

Hey all, hopefully this is a really quick/easy question - if I have a basic function like this and I only passed in 1 of the 2 inputs (lets say walk speed) when calling it - what would happen to the second 'set' node that didn't receive an input (lets say crouch speed)? Would it be ignored or would it set to a default value? If its to a default value, what would be the appropriate boolean check to see if the input was present with a branch in order to choose which to set (i.e. as we only recieved walk speed, ignore the 'set' for crouch speed)?

[dark drum]

It'll get set to the default value assigned to the input. (Most likely 0 unless you changed it)

[dark drum]

I would ditch the timeline and create two functions. One called 'start look at' and 'perform look at'.

Start look at would set the desired rotation and then call the perform look at function.

In the look at function it would check if the actors rotation is nearly equal to the desired rotation, if it isn't it would then update the rotation using the rinterp node followed by a set timer next tick which would then schedule the perform look at function to be called again the following tick.

This will continue to happen until the rotations match (or are close enough) and then stop the look at.

[warm notch]

thanks 🙂

[primal tangle]

this actually works, but the problem is, I lose control of the control flow. I need to make a wrapper latent action for it.

[dark drum]

I assume you mean so you know when it's finished right?

[primal tangle]

exactly, I need to know when it's actually facing the actor

Timeline's are like that by nature they stop the exec flow and continue afterwards

[dark drum]

I would just use an event dispatcher. Call it 'OnLookFinished' and set it to private. Then in you're start look function, just before you call the perform look function, bind to the event dispatcher and connect the delegate to the start of the function to create a delegate input.

In the perform look function, when the rotations match, call the event dispatcher followed by an unbind all.

When you call the start look at function, you'll be able to define a function/event that will be called when it finishes.

[primal tangle]

I did it like this and it works

then I just call StartFacingGoddess where I want and then I can have all the other logic afterwards hooked to OnFinished, what do you think >?

I just tried it with actual code and it's workin! thx for the insights man!

[dark drum]

In terms of what i described something like this. It also includes an option to choose between the control rotation or the actor rotation.

[dusky meadow]

Hi in unreal engine 4 i want to make an open world game where the open world is one level and the interior's are separate levels like in skyrim what would be the best way to achieve this ?
Eg moving the player through keeping consistent time of day etc

[inland walrus]

Whats an optimized way to make it so that I don't have line trace on tick? I need to constantly check what is in front of the player

Would making it on a timer only when player collision is being overlapped be good?

[dark drum]

It would be to line trace on tick. 🙂 If it needs on tick, it needs to be on tick. If it doesn't need to be responsive, you might be able to get away with a looping timer at about 0.2.

[inland walrus]

Got you, what about making it on a timer and trigger when player collision is being overlapped? would that be better for optmization?

[dark drum]

Probably wouldn't make much of a difference. That's me assuming if it doesn't actually hit anything then nothing is really going to happen.