blueprint

[lone bison]

any help would be appreciated

[hollow inlet]

trying to make an array that contains 3 blueprints that inherit from LyraTaggedActor, I set the variable type like this:

I can't add any default values?

it depends on what you're doing and how you've set things up, it's too broad a question

[maiden wadi]

No. The event you have up therre has Tile in it. You can get Tile, and get Attached Actors, or Attached Components, and iterate over them.

[lone bison]

okay sorry

[maiden wadi]

SetViewTargetWithBlend in Player Controller on the actor after spawning it.

[hollow inlet]

it's okay dude, you just gotta figure out more specifically.. are you starting with a template or something?

[lone bison]

nope all from scratch

[glossy bane]

But how do I reach the children from the parent Tile? I think this is where Im getting confused

[hollow inlet]

maybe check out Lyra as a starter guide.. or grab some demo and look at how they do it

[maiden wadi]

Or just call SetViewTargetWithBlend after spawning it.

[lone bison]

cool thanks for your help everyone!

[lone bison]

It worked thanks guys!

[modest gulch]

There is GetPointDistanceToSegment. Is there equivalent of it for surface, like rectangle? I cant find it, but maybe because I cannot guess its name.

[hollow inlet]

like why can I add elements but then not set them to anything but None

how do I choose randomly between N classes, or make an array of N classes?

[maiden wadi]

Fairly sure you can do this.

[glossy bane]

Will try it thanks alot

[eternal fable]

Guys
I made a tutorial
That covers the setup of the reload system used in Insurgency Sandstorm (because there wasn't any and it felt a bit complicated to me but it's all math)
It uses 3 magazines only (because I have a use for just 3) but you can improve the code for more magazines.

https://youtu.be/mvcjwbXwaAM

[slim fern]

how difficult are climbing systems (like assassins creed but simpler) to make
im just trying to work out while im taking a mini break from coding AI what i can use to make getting round a level fun

[hearty canopy]

How can I expose this parameter in Groom actor to animate it in sequencer or how do I change it from blueprint?

[dense furnace]

@hollow inlet i have to imagine your using a actor object reference and that is a world reference you would need to expose your variable(set instance editable) and set them in world as its not a class ref or something else but the object itself so you cant set it in the BP where nothing exists it needs the instances you placed in the world. now if your trying to set it to something not in the world which i doubt you can use soft references or another variable type

[trim matrix]

Can anyone help me figure out how to get the number of clients?

[sweet reef]

What do you guys think is a good way to implement a 3d platformer character 'skid' (like in 3d mario games, when you're running in a direction and suddenly change to the opposite direction, mario skids a little bit before actually changing direction)?

[maiden wadi]

Make a function. Get GameState's PlayerArray. Iterate over them and check IsABot != True, if true, add to local array of playerstates, return local array at end of loop. Then you can get the Num of that return. Then you can also use that function elsewhere like player UI

[trim matrix]

That's convoluted

I'm surprised there's nothing built in

[maiden wadi]

O.o That's simple.

[trim matrix]

I didn't say it was hard

I said it was convoluted

Also GameState's player array? I don't see it

Also that doesn't work, still says there's 1 player

Even though I fire 3 clients

[mental trellis]

What says 1 player?

[vast lion]

How do I get degrees out of a Rotator?

[trim matrix]

Get Num of Players, as well as getting the player array from GameStateBase

I'm firing up 3 clients with one as listen server, not counting the server it should say 2 players right?

[sweet reef]

break rotator?

[maiden wadi]

@trim matrix

[vast lion]

@sweet reef I used FindLookAtRotation() but that gives me a rotation not an angle between the two points

Was wondering if I could get the angle out of the Rotator

[mental trellis]

If you're firing them on beginplay or a certain actor, the player attay may not have rully replicated yet.

Just to test, try printing something on tick

[trim matrix]

https://prnt.sc/kD2ykzNS_iVm

[maiden wadi]

Which actor's beginplay is this?

[trim matrix]

You are right @mental trellis it updates on tick

GameMode @maiden wadi

That begs the question, is there a way to know when everything is fully loaded?

Like a specific event

[sweet reef]

A rotator is a Vector composed of the rotation angles of each axis, in degrees.
Do you want the angle between your initial vector and the x vector of the LookAtRotation?

[maiden wadi]

Depends on the necessity. Beginplay doesn't run until GameState exists. So you can safely assume Gameplay is available on any client at Beginplay. This is why you should use it as a place to put important bindings that can be called when things are replicated over that are needed. There is no way to know when everything in your personal project is replicated and available, because Epic can't account for that. To do that, you would require your own system where important things register until all are available and then run a project made event of your own.

[vast lion]

Yeah I just want the angle

[maiden wadi]

Most times it's enough just to have bindings and the necessary things to update when their relevant things arrive and call their delegates in GameState or gamestate components.

[sweet reef]

But what angle?

[vast lion]

The angle between the two vectors

[sweet reef]

https://forums.unrealengine.com/t/how-to-get-an-angle-between-2-vectors/280850

[thin panther]

if that is an array of actor references, you cannot set them because the engine does not know which assets exist to set a default value

[trim matrix]

is there a way to add a bunch of options to a SELECT node at once? (i want to add a bunch of materials)

[mental trellis]

You could create an array of your materials and just get the value at a given index

[lament ginkgo]

I made a level blueprint variable but I have no idea how to set it in the editor.

[trim matrix]

how can i specify which materials go into the array?

[mental trellis]

Add it as a variable in whatever you're doing or use make array

[obsidian dirge]

hey guys! thank you so much for the help the other day, my project is looking really good

i have a question about UI

[mental trellis]

How did you make the variable?

[obsidian dirge]

I have my coins, lives and score up on the screen but i was wondering how i can display that same information to other screens like game over and pause. i have a set up for showing it on my HUD but i don't know if i have to do the same thing for every single UI with my coins and score displayed

[trim matrix]

@mental trellis thanks but this still requires me to manually specify which materials go into the array; is there a way to drag a bunch of materials from content browser into an array directly

[obsidian dirge]

this is the HUD blueprint i have

[mental trellis]

With the make array node you can sort of do that?

How do you specify which materials you're selecting from without specifying the materials in some way?

[obsidian dirge]

looking good for a first game

[grim ivy]

Hey guys. How are you all doing? Can someone help me? Just for context, I am new to Unreal and have a little experience in Unity. So, I have two Actors each with your own Blueprint and functionalities. In this case, I have created a Wall with a hidden Door (one actor), and a Trigger (another actor). Once the Trigger Actor is triggered, it opens the Door. So, my question is: is there a way to make a Actor with two separated blueprint, so I can have one Actor in the scene? In Unity, for example, we have a Prefab for that. Is that possible in Unreal?

[grave relic]

Heyo, everyone 🙂 guys is there any chance to use a free camera while sequence playing? which is focused at character and you can just move around and take a look

[trim matrix]

@mental trellis i was hoping i can highlight/drag over all materials in the content browser, and move that into a blueprint

[mental trellis]

I don't think the editor is that nice to you.

[trim matrix]

haha thanks anyways

it lets me drag individual ones into select

[lament ginkgo]

In the level blueprint, just defined a new actor

[slim fern]

Am i doing this right? im trying to make the actor who has this component follow the path in the array

[jolly oriole]

What's the best parent class to use for a logical blueprint? (it won't exist in world space, but will be instanced in logic systems)

[slim fern]

Object i thik

[mental trellis]

Then you set it in the level blueprint. The level blueprint is kinda insular. You're not really meant to access it from outside?

[jolly oriole]

thanks, thought so too

[slim fern]

is this logic right for moving the ai to the next path point

if you wanna see the helper functions just let me know

[lament ginkgo]

I tried that, but when Iselect from the drop down or eyedropper it, it just stays Empty :/

[trim matrix]

@slim fern how did you add extra dots along the way in wires?

[slim fern]

double click where you want it

[trim matrix]

@slim fern thanks!

[wary tinsel]

hey guys, a noob question. I am trying to save an array of integers by using the node ADD. On the first attempt all good. when I load and add a new element to the array it always give me just the last one. What am I doing wrong? Thanks

[candid geyser]

guess whos back

Don't worry this one will hopefully be simple

So, I kind of just wanna make it so that the game pauses whenever I open my inventory menu

I thought maybe I could just do it by setting game to paused, and then set it to unpaused when leaving the screen

But when it pauses

There is no unpausing it

[jolly oriole]

Wait, is there no accessible constructor for UObject blueprints?

[icy dragon]

Your unpausing actor might not have tick even when paused

[candid geyser]

Essentially what im doing is using a flip flop node that switches between the inventory, and the actual gameplay

Here, I'll take a screenshot and show you

[icy dragon]

I have a hunch the flip flop node is in an actor that doesn't tick when paused.

[candid geyser]

I have no idea how to make it tick

Player Menu is the inventory, and main hud is the, well, main gameplay hud

Input action is the Tab Key if that is also relevant

[sweet reef]

how do you change the ui style to that flat style?

[candid geyser]

Uhhhh it's a plugin

If you have about $9 USD to spare I can give you a link to it

Because the UI isnt free :')

[sweet reef]

ok, I'm good then 😆

[trim matrix]

Is the input action set to ExecuteWhenPaused ?

[candid geyser]

N o p e

[trim matrix]

if you click on the input action node, in the details panel, you can change it

[candid geyser]

That would probably be a good idea to change wouldnt it

[trim matrix]

[candid geyser]

oh my god there it is

i am blind

[trim matrix]

I am not sure the issue. "when I load and add a new element to the array it always give me just the last one". The ADD nodes creates a new entry for the array and places it at the end of the array. This sounds like expected behavior so I am not sure to problem, can you elaborate?

[wary tinsel]

sure

I have 8 sphere, each of them have an ID.
Every time I do an action I need to 'Add this sphere ID to the array and save it'. This way, when I load the game it will load only the list that I saved

[trim matrix]

If you means some sort of ConstructionScript function like an actor has, no there is none.

[wary tinsel]

sounds super easy and I'm sure I did this thousands of times, for some reason I am getting always and only the last ID that I add

[flat coral]

1. What does your "get" look like?
2. What are you expecting to get?

Also 3 might as well show us the Add call too

[wary tinsel]

this is when I save the new entry

this is when I load it

[flat coral]

So... you're searching the array for the ID you expect?

[wary tinsel]

I want to load all the ID that I save

and show the mesh, if not hide the mesh

[trim matrix]

So you have an array of Sphere IDs. You want to look at each element in that array, find the matching sphere, and show that sphere?

[wary tinsel]

looks like it's working with contains

[candid geyser]

Thank you lmao, this immediately fixed it completely

[flat coral]

I think you were trying to do a contains but what you actually did would call BOTH sides of the branch, and call the "false" many times

[wary tinsel]

how the contains work? is it looping all the elements?

[flat coral]

Presumably. And then return true if it finds the thing or return false if it reaches the end of the array

[jolly oriole]

can you help me understand why they omitted that?

[wary tinsel]

mmm still not working properly tho

[wary tinsel]

I have 8 sockets, and every time I add a new sphere I want to set that ID and save it. In this way when I load the level he will show me only the sphere I snapped making the mesh visible

very simple 🙂

[flat coral]

Unreal has weirdly restrictive opinions about what "Objects" are or arent. It uses them more strictly as abstract or data carrier classes, than other languages.
Just get comfortable using Actor for things that don't get instantiated. Like I'm pretty sure GameMode and PlayerController subclass Actor.

Fun question: I accidentally clicked on a C++ class. When will it stop trying to open an IDE I don't have installed? This has been going on for a few minutes now

[jolly oriole]

Is there anything I should be aware of before I start using Actor for most things? I'm not new to programming but I am new to unreal, so I just want to make sure there isn't some fringe cases I need to be aware of before I spam Actors HAHA

I'm using them mostly for logic too btw

[trim matrix]

Just make sure to disable actor tick.

[flat coral]

^

[lament ginkgo]

Ok, well maybe I'll tackle this from another angle. Let's say I have a bunch of static cameras on a level that are cycled through (Like an adventure game). What would be the best way to set the default starting one? Obviously a save/load would override this.

[jolly oriole]

easy as, thanks teamers

[maiden wadi]

Actors are for encompassing components, or for networking. Components for anything else.

[trim matrix]

^

[tawdry surge]

Didn't they fix the tick thing so that if you don't have any logic running on tick then it won't tick

[trim matrix]

You can use objects to handle game logic though to in some cases. Dont be scared to try.

Just have to be aware of the limitations

[trim matrix]

I hope so.

[tawdry surge]

Pretty sure they did back in like 4.21

[devout pine]

I made a prototype of a tool for Data visualization. https://youtu.be/lTS4jGMuCm0

[golden frigate]

any reason the line trace by channel blueprint no longer detects hits on this?

it was detecting hits when i put the camera in 3rd person but doesnt in first

weird

[near glen]

can anyone hint me to tutorials where I can learn about how to make building system that will work something like this? floor by floor based with grid

[icy dragon]

You can look into making runtime map editor.

[near glen]

thanks! but looks like there are only plugins tutorials and not how to make it from zero..

[mental trellis]

Learn the engine first.

Then it will become clear.

[near glen]

I used to make some stuff for couple years and know a lot in ue, just don't want to make it from zero by myself cause obviously there are better solutions I'd check first

[mental trellis]

You just said you could only find plugins and tutorials and now how to make it from zero

And now you don't wnat to make it from zero

[icy dragon]

Well, the basics are runtime map editor

At the very least runtime map editor is a lead for you to break down

[near glen]

I meant tutorials for that plugins not tutorials for making that "runtime map editor"

[icy dragon]

It might help if you're able to break it down to simpler mechanics. Search for the building blocks, not the step by step

[near glen]

yeah I understand. since there are no such tutorials in youtube for ur I think to peep about things from tuts for unity 😄

[mental trellis]

I mean the logic will be similar.

Just adapt it for unreal.

[near glen]

yeah and that's what I need

[flint crypt]

Hey everyone, is anyone willing to hop on a call and help with a loot system I am developing using blueprints?

[faint pasture]

There probably won't be any tutorials on that. It'll all depend on your games context. Just start simple. Start by thinking about what the save game for your level looks like, and how to modify it. Then make the tools in engine and build it up.

Start with placing cubes on a grid and being able to save and load it.

Once you're comfortable enough with the engine to pull something like this off, the path forward will be pretty obvious.

For example, my project has a vehicle builder on a grid. My PlayerController has a build mode and my vehicle pawn has functions for building from a struct and saving to a struct.

https://youtu.be/Datugg_ZS3E

[wintry geyser]

Hey is there any way to add new keywords to existing nodes, like if I searched 'Wait', it could bring up 'Delay'?

[tight schooner]

For nodes you make yourself yeah, there's a keyword field. Dunno about engine provided ones without modifying source

[spark steppe]

dang, that looks fun. are you planning to release it some day, or is it just hobby?

[kindred remnant]

Hello - gonna ask a really dumb question (i'm a sound designer looking for a project to practise on, for context) but on the Unreal Marketplace, there's this Low Poly level which says "install to engine" so I install it to my 4.27 UE but I can't find it anywhere. Any ideas at all where I might find it now that it claims that it's installed to the engine? this is the level https://www.unrealengine.com/marketplace/en-US/product/low-poly-shooter-pack-free-sample

[tight schooner]

@kindred remnant I have limited experience with marketplace assets. In the Epic launcher — UE Library section, is there an "add to project" button? Or what if you look up that asset in the store?

[kindred remnant]

Normally there is! for this project for some reason, it just says "install to engine" in lieu of "Add To Project" like the others for some reason! https://gyazo.com/635e3399b9c6c66ac31e42703742750a

[icy dragon]

It could be code plugin instead of a complete project.

[kindred remnant]

Yeah that seems likely

[icy dragon]

The limitation with marketplace is that anything but Code Plugin can't contain C++ code

That project might use C++ code, so it's packed as plugin.

[kindred remnant]

Ohhhhhh I get you! Yeah i've just checked on the devs website and there's an external project template on there so I can only assume that they've just split it up for some reason

[icy dragon]

You might also want to try enable the plugin and look for the content files in Content Browser (make sure you have plugin content visible)

[spark steppe]

usually that stuff comes as project?!

weird way to ship it as plugin

[icy dragon]

Probably contains C++ code, again, anything but Code Plugin can't contain C++ code whatsoever

[spark steppe]

projects can contain c++

[icy dragon]

Proof.

[spark steppe]

city sample / lyra

[icy dragon]

Oh, UE5 thaengs

[spark steppe]

so that is a new feature?!

i don't see why projects shouldn't be able to ship c++ code on ue4

[wet shore]

anyone know how to reference a camera actor to a widget blueprint?

[drifting cipher]

Hey guys, coming from C++ to BP, how do RPC work here? Do I gotta make a dedicated function to set variables on the server as client or do BP's variable setters allow you to do it by ticking a box somewhere?

[mental trellis]

They work pretty much the same way, except the BP does all the under the hood stuff for you.

You just make an event, tick "run on server" and off you go.

Something like that.

[fiery glen]

You can just set repnotifies for variables too iirc

[mental trellis]

(but they don't work client->server)

[fiery glen]

ah, yeah

not rpc

[drifting cipher]

oh sweet, thank you very much

[limber wing]

I am trying to have a button in my pause menu essentially relaunch the current level but as a listen server... This node setup doesn't work unfortunately. Is there something I'm doing wrong?

[faint pasture]

Release eventually, gotta find the game in it first though, and turns out networked physics is hard?

[runic parrot]

Hi! does anyone have the diagram with the live of the diferent default BPs?

[dusk cave]

I need help figuring out how to get my ai to switch the bool to false when the player is out of sight. I don't see a end see pawn node or something like that I could use.

[maiden wadi]

Can't remember if there is supposed to be a ? in front of Listen or not. How are you testing this though?

[candid geyser]

Hmmm okay, so, I made a model that's just a simple apple, and I want to make it so that this is a material the player can pick up and store. Any ideas?

Only for the actual collection of the apple itself, the inventory part I can work out

What I kind of want to do is have a box trace that surrounds the player out to say, maybe a meter, and anything that can be interacted with that comes within that range, can be interacted with/picked up

[plush storm]

how do i posess multiple charachters at the exact same time?

[candid geyser]

Nvm I got it

[hard sigil]

Can blueprints read json or only on cpp?

[queen comet]

If I retrain as a video game programmer here at age 50 realistically what are my particiipation changes in industry?

[icy dragon]

By faking it.

[elfin wolf]

lots and lots of json parsing blueprints on the marketplace

VaRest is an example

[serene bramble]

So I have a dict mapping an integer to a string. Here are 2 examples. (pic 1)
And here's how I get them in code (pic 2)
Top one works a-ok but the bottom one is outputting "None"

Any help?

(finding "5" and below works fine, finding "6" and above doesn't)

Okay maybe a development? But I tried to change the value of the working one "5" and it's changed but not actually reflecting the change, so the value output is still "test" not "new value"

[stable fossil]

Is there a way to define the "static mesh component" from a variable instead? I can only change it from the details menu of the node.

[wooden owl]

does anyone know how to have this style of linear nodes in BPs? it looks cleaner https://pbs.twimg.com/media/FUWCUn7UYAASxdn?format=jpg&name=4096x4096

[trim matrix]

its a plugin

electric nodes?

[wooden owl]

Thanks, I wish it was supported in the engine directly

[trim matrix]

Use the function called SetStaticMesh?

[stable fossil]

That did it. Thanks man

[trim matrix]

I would assume that NPCStorylineSubtitles does not have the correct values at the time the Find node runs.

[icy dragon]

Unfortunately it's not free

[tawdry surge]

Pretty sure you can play with line interpolation settings in editor preferences

[slim fern]

its not ridiculously expensive

its like £10

[tight pollen]

when i set Time to 10 then with Start Variance how much it would be?

how variance works

[tawdry surge]

+/- a random value between 0 and your variance to the start delay value

[icy dragon]

Tbh I'm very reluctant to spend money on things that are just in the editor and not something that can end up in runtime/shipping build

[tight pollen]

so if Timer == 4 Start Delay == 10 Variance = 5 then start will be between 9-19?

[tawdry surge]

Yeah

[serene bramble]

They're set with the "default values" so they should be there instantly?

[candid geyser]

Okay sooooo

Im using a box trace which surrounds the player to check to interactable items around the player

The problem being that it doesn't want to detect any actors

Well, human actors

A sphere trace does, but a box trace isnt.

Actually I have an idea

[severe tendon]

So, what this code should do is enable the input for a door that was blocked with a padlock, the padlock is a different BP, when you break it you can open the door, the problem is that i dont know how to call the padlock bp to the door bp to confirm that you can open it

This is the code i have but it donest work

[tawdry surge]

Personally I wouldn't separate the lock from the door.
However you could set the reference to the lock manually on the door instances in the level.
Just make a variable and mark it instance editable

[candid geyser]

Okay so im actually worried that my dialogue system WILL cause issues down the line so im just gonna scrap it now rather than later

[severe tendon]

Now that i think about it maybe i should just put it all in the same BP

But ill try to just make a reference

[tawdry surge]

I think ue5 has a system for setting up dialog. Can't remember the name tho

[severe tendon]

So, i put the variable reference but it doesn't work

Is this how it should be done?

[barren flower]

Can anyone give me any information as to how to get this CSV imported?

ive created a struct and I just get various errors

= (

[elfin wolf]

what isnt working

[tawdry surge]

@severe tendon did you actually assign the variable on the door in the level?

Or just make a blank variable

[severe tendon]

Blank

[tawdry surge]

Check the instance editable option on the variable
And then in the level, select the door and assign the variable to the lock you want

[fair magnet]

Anyone got ideas why A*-1 gives error in math expression?

[severe tendon]

This happens

[serene bramble]

Any other ideas...?

[severe tendon]

Any idea why?

[barren flower]

Could be that A is zero?

whats the error?

[icy dragon]

0*-1 results in 0

It's not as fatal as division by 0

[barren flower]

Well, what else do you need to know?

[fair magnet]

Don't really understand it tbh

[barren flower]

its prohibited

[fair magnet]

but why

[icy dragon]

unary operators are prohibited

[barren flower]

do a one minus or something

[icy dragon]

There is a dedicated negate float function btw

[barren flower]

Hey bumping 😦

I really cannot understand the fault and the documentation isnt great

[elfin wolf]

replace the get candado with a validated get

you're trying to access it after youve already deleted it

[short reef]

So should I be using UE's built-in damage functions or should I just roll my own interface?

[icy dragon]

You can use the former as the built in one also have networking stuff ready to go, but you can do the latter if you want to

[minor wolf]

you can do A * (0-1)

[fair magnet]

that might work yea

[severe tendon]

@elfin wolf Now when i destroy the padlock it doesn't get past the get

Should be something like thsi i belive?

[elfin wolf]

can you send the padlock code?

[severe tendon]

Sure

[short reef]

Fair enough, I guess the only reason why I might want to roll my own is if I need to extend it in terms of functionality

[severe tendon]

This

[tawdry surge]

How are you supposed to check an object you deleted?

You can't destroy it and then access it

[maiden wadi]

Why not just check existence? If the lock doesn't exist, then it's likely not locked.

[severe tendon]

Lmao ok

Yeah, that was the problem, it works now

Thanks for all the help 👍

[glossy bane]

Does anyone know if there are any actual performance differences between spawning a BP with various begin/end overlap logic and creating a child class of that BP and spawning that one instead, since it's all inherited wouldn't the performance hit be the same?

[maiden wadi]

Identical performance. There will be a very minor memory overhead for the second class, but it'll be so insignificant that you will literally never run into a case where it'll harm you.

[glossy bane]

Perfect thank you for confirming

[spark steppe]

i have the problem that unreal keeps placing some of my actors at 0,0,0 rather than to their supposed location where i placed them

that issue kind of started with UE5, anyone had this, too?

[maiden wadi]

Can any of the spawn code return zerovector as a location?

[spark steppe]

there's no spawn code, they are placed in the level

i guess it has something to do with some of their components mobility

[maiden wadi]

Odd. O.o

[spark steppe]

on a side note, they are initially loaded at the correct location when i open the map, once i hit begin play they teleport to 0,0,0 and stay there when i stop the PIE

guess i'll have to run in debug, to see what happens

[harsh coral]

Hey, everybody, very new to blueprints and I´m struggling to make a seemingly easy thing work...
Lets say I have a blueprint with several static meshes in a construction script.
And I wanna have a few checkboxes to set their visibility.
But I ONLY want to have ONE of them visible at all times.
Is it possible to set up a flow that has some booleans and they all trun each other on or off or something?

SO, if I set Object A to "visible", it would make Objects B-D invisible, if I set Object B to "visible", it would set all others to "invisible" etc.

[spark steppe]

run a for each loop iterating over all of them, provide the index where the flag should be true, and compare the loop index with your index, and use the result for the bool

[harsh coral]

Sorry, that already goes over my head.

[spark steppe]

that's not exactly what i meant...

the approach with having several bools where only one should be true, is also kind of weird

you may want some other way to select which mesh should be visible

[icy dragon]

Personally I'd rather use int directly and just do for (each) loop to set which mesh in the array is visible

[spark steppe]

e.g. an enum, or a static mesh variable with the actual mesh that should be visible

so you can compare against each component if it is the mesh that should be visible

[harsh coral]

Agin, complete noob here.

[icy dragon]

Assuming only one can be visible at given time, I feel like For (Each) Loop is more sensible approach

[harsh coral]

I can kinda dissect an existing flow, but I have no idea how to create anything in any logic...:)

I have about an hour to figure it out and then I just have to live with what I got.

[maiden wadi]

I think to do this in BP, you need an index of an array and an array of bools. May work. More realistically this is much easier done in C++ with PostEdit functions.

[harsh coral]

Yeah, realistically I have about an hour to figure it out, I think I can´t learn C++ in an hour...:)

The whole setup is a complete hack anyways, I hate that I just can´t find the time to learn any programming properly.

Already paid someone 250 bucks to basically add two nodes to my blueprint.

And I still had to figure out to have it work teh way I wanted.

[icy dragon]

Pretty simple I think
This should be executed once you make the mesh components from the static mesh reference array

[spark steppe]

then you probably shouldn't do it in the first place?!

[harsh coral]

how do I get the "Mesh components" node?

[icy dragon]

Also my bad, I should've skipped the select node

Much better 🙂

[harsh coral]

Well. Everytime I am at this point, I already spent dozens of hours doing it "hacky" or "manually", because I didn´t realize I would have to do the same hacks or manual labor another 20 times...:)

[icy dragon]

That's a variable you make to store the references to the mesh components that you generate from the static mesh asset reference

[harsh coral]

What kind of variable?

[dark crow]

An Array of Static Mesh Component Object Reference

[icy dragon]

You already have this kind of setup, right?

The part that I'm not highlighted is the component creation part, followed by adding that newly created component to the array

Though I think the array has to be cleared first 🤔

[harsh coral]

No, its completely different set up here:

They are just added on the left side in the components list.

[icy dragon]

Ah, so not generated by code.

[harsh coral]

No.

Its an existing marketplace asset and I just added some more components and the visibility switches.

[dark crow]

So you want a bool for each static mesh?

[harsh coral]

Yeah, but only ONE can be active at any time.

So if I switch one one, the others need to be switched off.

Its a bit more complicated than that with some material changes as well and in the end I need to move it to the event graph, so I can call it from the sequencer.

[icy dragon]

Okay the setup should be this first

Then on loop completed, do the int switching thing

[dark crow]

Couldn't you directly on that loop just check for the bool and set visibility?
Ofc if not needed at runtime

[icy dragon]

It might not be optimal, but in construction script it's not like it's executed every frame on runtime.

[dark crow]

Or int yeh

[harsh coral]

Yeah, like I said, in the end it needs to go into event graph, so it can be called via a custom event in sequencer.

I got that working, but basically for each switch right now I have a custom event chain with 10 booleans to switch on/off.

Its doable, I was just hoping I could simplify it somehow.

[dark crow]

If you do a branch chain, most of the times there is totally a better way

[icy dragon]

This would be the setup after the first loop

Considering you said only one can be active at any time, int comparing would be more sensible

[trim matrix]

Hi, How can I set "isAttacking" variable when attack animation end? is there any node for checking the animation status?

[icy dragon]

Use anim notifies.

[trim matrix]

Thanks

[harsh coral]

Ok, this looks like something I could figure out now, but I´m still stuck at this part, lol.

And I don´t know where a/b/c should then go.

[icy dragon]

This would be the full picture.
I'm not entirely sure if AddUnique considers reference to premade components the same. Debug the array, if it explodes when moving the actor around, add the Clear node back.

Also you can replace the int with an enum

[harsh coral]

Getting an error here:

[icy dragon]

I was assuming you have the mesh generated

[icy dragon]

Connect it to the Array input first before doing anything with the array element

[harsh coral]

Ah, ok.

Can I then also use the "children" node for the "mesh components" node below?

[icy dragon]

Actually yeah, I think you can skip the first loop

Okay, simplified #3

If the child components are all static mesh component and no other type of components, you can also skip the cast node. I just put it there because I don't know the component hierarchy

Simplified further and this is how it looks, assuming it's all static mesh components

[harsh coral]

Hm its not doing anything...

I just dragged of the pin from the equal node to an integer and named it "Visible Mesh Index""....Is there anythin else I need to do with it?

[runic parrot]

Hi! does anyone know where yo save user preferences between games? (i'm not sure that user settings is the best option for this, since i want to save things like "selected character")

[maiden wadi]

Depends. You can pass information between level loads. Or write it to disk in a savegame and reload it in the new level.

Personally. I have a few different savegame objects that are mostly owned by GameInstance, they live there as instantiated objects that I can write and pull data from, and write to disk at any time with a simple call.

[runic parrot]

I tought of this also, but maybe there was a better option.
The idea of rewriting a save game to disk whenever i change something so trivial like "selected character in main screen" sounds bad. But what ever, i'm gonna have to do that.

[maiden wadi]

You don't have to write it to disk. You don't even need a SaveGame object. The idea was more to have an object that can hold state, that exists between map loads. I use SaveGameObjects because they're basically UObjects with the ability to write to disk when I finally want to, which I rarely do without the user requesting it or auto save stuff. Beyond that it's just a place where I store data that anything can read from by accessing GameInstance and then the save objects.

[runic parrot]

I'm thinking of doing custom Getter/Setter for each variable on the SaveGame for the user settings.
When doing a get, if the SaveGame is not cached already, you cache it and read.
When doing a set, you take the current SaveCached and write directly into the Disk.

Is your approach different and more efficient?

[maiden wadi]

You can do pretty much the same thing by having only Objects owned by GameInstance if you don't need any data to persist application loads.

[runic parrot]

This should be for things like "when you load your game, the selected character was slot number 3, so that one get outlined"
I want those things to persist across game sessions

for persisting variables across levels i'm using Game instance and that works fine

[maiden wadi]

That would just be your game setting itself up from Beginplay from the data in those objects. If data isn't set, use defaults.

It more or less is just using game instance. I just like to hide away state in compartmentalized areas. I don't like muddying main classes too much if I can avoid it. It starts with a few variables. Then a few more. And after a while you end up with a ton of stuff.

[runic parrot]

yap, makes sense. Thanks!

[trim matrix]

guys, is Sphere Bound are the same as Strict Bounding Box?

[icy dragon]

No.

Sphere Bounds are less accurate bounding area than Bounding Boxes.

[earnest tangle]

Unless your actor is spherical lol

[icy dragon]

*perfectly spherical

[trim matrix]

wow

ok great to know!!

and which node represent the blue box?

bounds?

also do you know how to move the pivot of an actor to its lowest Bbbox face?

[plush storm]

Like I need to have it actually do it however because the player will be able to use a motorcycle for example, but STILL staying active so they can receive damage n stuff

[earnest tangle]

You don't have to possess something for it to receive damage or perform other logic

[acoustic cipher]

Hello Guys, ive already asked in general and in editor scripting, but nobody seems able to help me (or maybe they dont see my question)

can i SPAM a problem i have also here? is related to blueprints and movie render queue pipeline

[trim matrix]

When I spawn an actor, "Ai move to" node does not work and the actor does not follow the main character. How can I solve this?

[shut escarp]

Hello i want to call a function when all the array elements come out to be true. How do i go about doing this?

[tight schooner]

If you built a function, it'd be a good use for a local variable. In any case, you need a new boolean variable. Set it to true before the loop begins. If an array element is false, set your boolean variable to false. (If the array element is true, leave your boolean variable alone.)

On completed, check your boolean variable

[shut escarp]

ohh ok i see thank u

u r a genius

[upper mortar]

How can i get the UnrealEditorSubsystem?

[earnest tangle]

I think that node might only work in editor utility blueprints

[spark steppe]

BP_Foobar has natively added scene component(s), but none of them were set as the actor's RootComponent - picking one arbitrarily

[upper mortar]

I am in an editor utility actor

[spark steppe]

did anyone have this problem before?

the blueprint in question has a scene component as "root"

and idk how it would get messed up 😭

[maiden wadi]

C++ base?

[spark steppe]

nope

but i'm considering making one where i try to force the root component

i feel like... it's some issue with component mobility, where it for some reason resets something to mobile, and detachs all static childs, which then are all at the root

which should be impossible tho

i have a wild guess...

i replaced the actors DefaultSceneRoot with an empty scene to get rid of the default icon...

[sonic pelican]

How come stuff works on youtube tutorials but not on my computer? Specifically a flying A.I. that patrols, attacks the player if it sees them, spins around if it doesnt then returns to patrolling. In the tutorial they used an enum for floating pawn movement states. But the aggro and attack player didnt work it just froze at line trace hit spun around if you walked away then returned to patrolling between placed actors. I ended up using a completely different blueprint set up from another video to get the attack part right but now it chases you through the floor. Only returning to the air to patrol again.

[spark steppe]

there can be lot's of reasons for that

most likely one of you didn't use a default project, and some custom stuff within the project

so you didn't replicate 1:1

[faint pasture]

Make sure you understand exactly what you're doing and why, and not just blindly following along

[flint crypt]

Is there anyone that may be interested in helping me make an inventory system like the one found in fallout 4?

[sonic pelican]

I get the just of it just not the syntax or name of every node

[white elbow]

how should I make the player unable to fire his weapon when sprinting? My best guess is to check IsSprinting or something every time when the fire button is pressed, but maybe there's a better way to do it?

[trim matrix]

That sounds like the best way to do it.

Having a problem here that the character is still rotating/turning even when his movement mode is set to "none"

these are just basic ai roaming agents with a nav mesh

[trim matrix]

Show code for movement node.

npc bp

[trim matrix]

from player bp

[trim matrix]

Are you getting any errors when you play the game?

No

[trim matrix]

^

In that picture, you are setting the NPCs, movement mode to none.

Not the players

[trim matrix]

yes

it was never for the player

they still turn though like in the video

So they player is allowed to move/turn? The issue is that the NPC still moves?

[trim matrix]

yes and yes

they dont really move but they turn

like in the vid

The NPC is still running its AI moverlo script most likely

It is trying to move, but it can’t

So it just turns towards the movement point instead.

Never actually moves there.

[trim matrix]

yeah but look at the picture If DontMove is set to false then it runs the rest of the script

when i talk to them their dontmove is set to true

so it shouldnt be running

Yes but look at the delay

You mean the one after the branch?

If the delay has already started, this whole don’t move variable does nothing

Move the don’t move check after the delay.

[trim matrix]

Okay great it works fine now, Thank you!

[past girder]

Is It possible to use "Move Component To" node without the rotation being affected?

[white elbow]

how do I clear the actor reference? Do I have to create an empty variable then set the reference as it?

[high fractal]

Anyone here familiar with Combat Components? I'm trying to activate the collision event inside a Weapon Bp that is attached to my weapon actor. Normally it is setup in the player character on an actor component.

[steel shadow]

@trim matrix you are giving a different 'delay - > move' command each tick, rather than waiting for moves to finish before issuing new commands.

[trim matrix]

yeah

[river wigeon]

Has someone a better solution for a hitsystem? sometimes it hits twice although i have a "doonce"

[plucky plank]

Can a sphere trace only see different objects in it's radius or can I use a sphere trace to get the data of a polygon in a mesh?

For instance, in my case I want to get the normals of all polygons range of a sphere trace. Can I accomplish this or will I need to consider another approach?

If I cannot, what route might I consider looking into in order to accomplish something along these lines

[trim matrix]

Is CombatComponets a plug-in or something of the sort?

[high fractal]

Yes it handles collision from sockets on a Mesh. Similar to AGR Combat Manager Component and the likes.

[trim matrix]

I am not sure then

[river wigeon]

yeah but, if i do a do once without a reset it will never fire again

[trim matrix]

is it possible to save level data when level streaming? Like corpses and thrown around physics item to remain there when exiting in and out of the level through level streaming

Like in the elder scrolls games that stuff remains even when you exit the cell/loaded area

hows it done/whats that called so i can look it up

[white elbow]

how do I make child blueprints inherit variables?

[river wigeon]

thank you for your help, i will look into the montages 🙂

[white elbow]

I have a general blueprint for objects that you can pick up and child blueprints that are specific objects, I need the child blueprints to have the variables but be able to set different values in them for different objects

[modern cove]

Quick ?: In a For Each Loop, does the "Array Index" Output start at 1, or 0? I've been getting a few errors where code is reportedly trying to access Index 3 in an Array of Length 3

[trim matrix]

0

[modern cove]

that's what I thought. WOnder why it's looking for index 3 then

It says the Branch Node was looking for the 3 index

[trim matrix]

What your describing is exactly how child blueprints work.

[white elbow]

that was the idea, but I don't get the variables in child blueprints that I have in the parent

[trim matrix]

They are there, they just are not shown in the variables menu by default.

Right click anywhere and type Set VariableName

It will come up

[white elbow]

I see, thanks

[trim matrix]

If you click the display options at the top of the panel the variables list is at, there will be an option to show inherited variables.

[heady jay]

How can I attach a cable component end to another actor?

[modern cove]

I think I'll need to try changing some of my for loops to For Eaches. Seems like For Loops are running 1 extra iteration than they should be sometimes

[trim matrix]

It’s just an error in your code then.

That’s probably it yea.

[modern cove]

The weird thing is that sometimes they do the extra, and sometimes they don't.

[cobalt rose]

When you change the type of a map/set/array, is there some tool/trick/way to make it auto-update all the names in gets and finds and such?

[trim matrix]

No

[cobalt rose]

that's a shame.

[trim matrix]

They are completely different kinds of data

[cobalt rose]

hu?

oh, you missuderstand me

I do not mean to convert between those

just their internal types

[trim matrix]

Int != float. Set != map

Either way

It won’t just work like that

[modern cove]

The goal of my current piece is to search the roster of a pack of enemies for recurring entries, (ie: Count how many Bats, how many Ghosts, etc). then, I want to assign letters such that if there's say, 3 Bats a Ghost, they'll be BatA, BatB, BatC, and Ghost. While 2 of each would have BatA, BatB, GhostA, GhostB.

[cobalt rose]

I don't expect a magical "everything works" result, just that most of the refactoring work is already done

[potent laurel]

By type do you mean class?

[cobalt rose]

Look, simple example. You have an Array of class MyController.

You do get and set and etc on that array

then you decide to change the class to, e.g. MyBetterController

all the finds and gets should auto-update to that new type, even if their input pins break then

[potent laurel]

I understand what your saying

[cobalt rose]

and if it is a little smarter it could even replace casts from the previous type into those pins

[potent laurel]

They should auto update but most of the time they break

I did see a long time ago someone knew a trick for this

Shame I can't remember lol

[cobalt rose]

I wonder how hard it woudl be to implement that as plugin

[potent laurel]

It's already in UE

For sure

[cobalt rose]

well, I haven't seen it

[potent laurel]

I thought it was the "clean up references" button but maybe not

[cobalt rose]

That's the half-way thing I mentioned

it leaves gets and finds untouched

like, it only replaces the variable get/set nodes and that's it

[potent laurel]

Is it still like that in ue5?

[cobalt rose]

Or even simpler: A "reset type" option on the find / isEmpty

etc nodes

but not even that 😦

Yeah it is

[potent laurel]

🤦‍♂️ why don't they see our pain haha

[cobalt rose]

hmm but reset type should be super easy to do

like, some nodes have it, even

[potent laurel]

Yeah they go to a wild card that allows you to just hook it back up

[lavish tusk]

Hey! so I'm trying to save my character's position when my save point is shot. In my first screenshot (which works), the custom event fires when my character touches the save point. then I try to add the logic that says to save if the other object is my bullet class and it doesn't cast. anyone know how to fix this?

[violet wagon]

The bottom bp is saying "if your a bullet, go through branch 1, then check if your a player, if you are then go through the cast". Im assuming you have no item in your game that counts as both a player and a bullet, so no matter what hits overlap it will not work.

From your description i think you should check if its a bullet, if it is then save, but if it isnt THEN check if its a character that overlapped, and if it is then save. Checking both before saving is the problem here.

also, GetActorOfClass will be inconsistent here because you might have more than 1 bullet in the world, and the actors will not always be equal. That node also causes a bit of performance loss. Id use another cast there.

[potent laurel]

I suggest doing a cast to "your bullet class" at the beginning

Just to make sure it's only a bullet that triggers the rest of the event

From that u can "get instigating pawn"

You'll get there, keep trying :)

[lavish tusk]

Thank you for the replies, guys! Might have a little trouble because I dont think I 100% understand casting yet, but I'll mess around with some of this and report back.

[violet wagon]

Casting was a huge hump for me when I first started. Its like a branch that you did before. It makes sure that the object you plugged in is the same type as the object youre casting to. If its not then it will fail.

[potent laurel]

You will get there, keep trying:)

[violet wagon]

^

[lavish tusk]

Much appreciated! This is super helpful!

[lavish tusk]

when you say to check if it's overlapped after checking if it's a bullet, what instigates the event? right now, this fires when any component begins to overlap and then it checks if it is a bullet

[violet wagon]

THe event is triggered when anything overlaps the box, thats correct. I might have made a mistake answering you, but youre right. What I was suggesting would look something like this. 2 options the bottom one is more similar to what you have

[brisk comet]

Hi guys. I'm just now learning blueprints but think I'm misunderstanding something fundamental. I'm trying to connect the Y axis of a cube to the mouse X axis. No player character. I'm trying to use the Mouse X Event on a script attached to the cube but keep getting messages about input not being enabled. How should I be going about this? Thanks.

[tawdry surge]

Actors don't accept input by default. Either make it a pawn or enable input on the actor

[brisk comet]

Ok thanks. How do I enable it on the actor if I go that route?

[tawdry surge]

Class defaults or settings at the top of the screen
Don't remember which

[brisk comet]

In this case I created an empty actor then added a cube and a blueprint to it, then supplied a ref to the actor.

[tawdry surge]

It's probably a reference to the static mesh component that you assigned the cube to
Either way inside the actor's BP, at the top of the screen you can access the class settings and defaults
Should be a check box in the details panel for enabling input events

[lavish tusk]

I see. So what would the 2nd box collider be? I see there’s one (Box) and another (Box1). My save actor only has 1 collision component. Also what is the character ref being plugged into the save checkpoint event?

[tawdry surge]

Probably just there for the example

[grave oak]

Hey, I'm trying to make a smooth animation between my First-Person-Perspective and my Third-Person-Perspective. Problem is after going to TPP and back (FPP is set at spawn) The FPP camera has an offset or a zoom. Why? I'm only transforming the TPP for the Animation.

(FPP Before)

(FPP After)

[brisk comet]

I'm still not sure why this doesn't print anything

[tawdry surge]

Any reason you don't just use "set view target with blend" node? @grave oak

[grave oak]

Well I'm new to UE so I just thought going from a to b is best

what does it do ?

[tawdry surge]

@brisk comet my bad you gotta do it from the event graph.
(I usually avoid this)
https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Input/ActorInput/#:~:text=Enabling Actor Input&text=On the Event Graph tab,add the Enable Input node.

@grave oak It transitions the player view from one camera to another over a set amount of time

[grave oak]

Thanks @tawdry surge

[violet wagon]

oh those are just to show that theres 2 ways of doing it. you can pick which one you want

[lavish tusk]

so I used the top method, and I'm getting an error: "Blueprint Runtime Error:"Accessed None trying to read property Character_Ref".

[thin panther]

you need to populate the variable

so somewhere, you need to set that to a reference to your character

[lavish tusk]

this is the details panel of that variable. the variable type is my player base class. is that a reference?

[thin panther]

no

so a variable hasa type and a value

you have made it of the correct type

but it also needs the specific character you are referencing

[lavish tusk]

ohhh I see. "default value"

but that parameter is greyed out

[tawdry surge]

If it's single player you can use get player character(leave index at 0)-> cast to your character type-> set the variable

[lavish tusk]

got it!!! My save works!! Thank you all so much 😄

[thin panther]

default values will never work for actor references, as that reference is never going to be static, you can always assume that a string will have its default value, but seeing as an actor will change and not be the same actor between levels and play sessions, it cannot have a default value

[flint crypt]

Is there anyone who can help me break down how to set up an inventory system, I want to avoid watching tutorials and picking up bad habits

[onyx frigate]

hi guys ! Quick 3D question ... I have a "radar" which is shown on the player Hud. This radar is a 3d sphere, with its own relative rotation in the pawn (See rotation in screenshot)
I've managed to calculate the location based on the sphere size etc ... but I am not sure on how to make the debug circle location relative to my relative rotation shown ...

Any idea ?

instead of getting the location etc etc, I thought of using find look at rotation, add my relative location, and project the location based on the radar world location + distance + rotator

[foggy escarp]

Which ui element is which?

[onyx frigate]

the blue sphere with the red arrow is the radar. red arrow indicate the X axis of the sphere

green ball is an enemy

screenshot it taken from the player pawn. blue sphere (radar) is rotated toward the player so that he sees his "pawn" (center of the blue sphere) from the top

in this case, the green ball is represented by the white draw sphere and should be almost directly in front of the player in the radar

[foggy escarp]

You will likely need to convert world space to screenapace.

are the arrows world space?

[onyx frigate]

no, local space

forget the blue arrow, that's a debug thingy

[foggy escarp]

Yeah. If your sphere is world space and arrows are, you can use the node called convert world space to screen space.

It's from the player controller

[onyx frigate]

in my case, it's a real 3d sphere

and my goal is to have at the end: enemy indicators (actors) inside the radar sphere, moving based on the player position and rotation

screenspace is 2d right ?

is there a way to rotate a world location based with a local rotator (my local rotation of my radar) from the radar world origin (location) ?

Enemy world location TO enemy scale world location TO enemy scaled world location rotated based on Radar world location and local rotation ...

not sure if it makes sense

oh yeah, the other way, If it's possible ...

find look at rotation between pawn and enemy (gives a rotator LOOK_ROT), calculate scale distance SD, project final enemy indicator based on Radar world Location at distance SD in direction LOOK_ROT + Radar Local rotation ?

[prime ruin]

quick question. why do images in my umg seem to create a duplicate when i move them around dynamically?

[spark robin]

Did they remove the clean up blueprint button in UE5?

[prime ruin]

setting the translate on a tick for instance

[faint pasture]

What is your end goal? You're not making a lot of sense.

[onyx frigate]

me the player have a detection radius of 15000 units. I am looking an an enemy which is at X:500 / Y: 500 and Z:0 units from me

I want to show a point which is relatively correct in my radar (blue sphere)

thing is: the radar component has a local rotation inside my pawn

[faint pasture]

Point location = radar center location + SomeSmallNumber x (EnemyLocation - Player location)

[onyx frigate]

This will take in account the local rotation of my radar sphere ?

[faint pasture]

Sure if you do everything in world coordinates. Are you following the math?

[onyx frigate]

Radar center loc yes

Small number not sure

[faint pasture]

That's your scale factor. If it's 1 you'll draw the point in 3d right where the enemy is. If it's .01 it'll be 100x smaller etc

[onyx frigate]

I know that I have the scaled factor of my detection radius sphere in real world vs radar sphere real size in the hud

Ok so that's this number

[faint pasture]

Is the radar sphere in 3d or 2d?

[onyx frigate]

3d

[faint pasture]

Ya so try it and report back

[onyx frigate]

Thanks man ! I'll try that.

I would like to ask another stupid question...
How to check if an actor is over or under the player in 3d ?

(Other actor location - player location) x player up vector ?

Something like this ?

Can't test yet but can't sleep without the answer ... XD

[brisk comet]

How do I output the mouse's x position every time it moves?

[onyx frigate]

Get Vertical Distance To is my answer I think

[onyx frigate]

Calculate between current and last position ? I think there is a function for the last, but if not keeping it in a variable should do the trick

If I am not mistaken input are always firing so it should do the trick

[brisk comet]

I just want to know how to print string when mouse x changes. I can't figure it out.

[onyx frigate]

Create a variable oldX, compare mouseX and oldX. If different it moved. At the end: update old X with mouse X

[brisk comet]

This is my bp for a pawn with a cube.
No idea why I'm not seeing a bunch of output on screen

I can't the mouse X event to fire at all

[onyx frigate]

Mhhh. Do that in the controller instead, and maybe create a binding instead of using mouse X directly

If an input is consumed in the controller it will not be fired in the pawn

Maybe that's why

[dusk cave]

How do I tell the AI to go back to wandering after the Player is out of sight? My AI just sticks to following my player.

[brisk comet]

@onyx frigatewhat do you mean "in the controller" ?

[wet shore]

I am trying to make a collision box enable a user control when entering the box and disable when not in the box. The hint widget I created when entering pops up so the box is working but the control I have set up for the actual interaction is not. Did I do anything wrong setting up the player control?

[left tree]

Have you confirmed that your LineTrace is hitting the DeskControl? I'd add a Print node to print out the hit actor(s) to confirm what it's hitting.

[left tree]

Also, depending on what your hit actor is, you may need to change your LineTrace channel to Camera and not Visibility.

[brisk comet]

Why is this so ridiculously hard!? I just want to output the damn mouse position on the screen! Nothing matches what I see on youtube/google. Menus they use are greyed out etc. This shouldn't be so elusive

[paper galleon]

This?

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Game/Player/GetMousePosition/

[icy dragon]

Because you're overthinking it.
https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Game/Player/GetMousePosition/

[paper galleon]

First lol

[foggy escarp]

Do you have the debug actor selected?

Oh, I guess it'd be printed regardless

[brisk comet]

Thanks but that doesn't explain why the Mouse X event doesn't work

[foggy escarp]

Is this new pawn possesed, or is it set in the world settings to be the player?

[brisk comet]

no clue what that means. The tuts just say enable input and create a mouse x event node

[paper galleon]

Thats probably a mouse input. You have to add the input in project settings.
The create the node in bp

Also, stop following tutorials step by step. You wouldn't learn that way.
Watch through first and understand what is going on

[icy dragon]

YouTube tutorial?

[left tree]

So far as I know, Mouse X doesn't work out of the box on an empty project. If you start with the First or Third Person content then you get a fully functioning character pawn, a player controller, project input settings and other things. The code you posted will work out of the gate in that base Third Person project. If you're using a blank project, you'll have to make that things necessary to get those mouse events captured.

[rough blade]

Are clients able to access the game state via get game state?

[paper galleon]

#multiplayer but yeah. Game state is replicated

[paper galleon]

#gameplay-ability-system

[brittle canopy]

oh sorry thanks.

[paper galleon]

Np

[rancid bobcat]

Just curious about Widget anchors. How do you determine specifically where you should place the anchor. I mean wouldnt you just want to place it in the center of your widget, or make it full screen most of the time, what would be the significance of the other options.

[earnest tangle]

It makes a difference when the UI is scaled for different screen resolutions and aspect ratios

Try the anchorings and use the arrow in bottom right to resize it and see how it behaves

[gentle urchin]

Centered would mean youd need to update the offsets whenever you resize the viewport

If you wanted to have some widget up in a corner etc

Anchoring it to said corner instead solves this

[undone surge]

difference between on clicked and on pressed in widget button?

[trim matrix]

Can anyone show me a basic blueprint of using ray casting to open and close a door?

[gentle urchin]

Click is press and release

[undone surge]

aah

[fresh wadi]

Hello guys, In unreal by default when the character run into a wall movements are slow down. I would like to remove this effect and being able to run into the wall without affecting the speed. (Even if we still have a running animation). How can I acheive this ?

[gentle urchin]

If you want to run through it, just remove collision on the wall

[fresh wadi]

No I dont want to get through it. I juste want to "dont" slow down the speed when I run into it

[brittle flame]

Using blueprint - if i add a component to my pawn at runtime - the dynamically created component seems to exist if I do a few printstrings - but its not visible when i eject from my pawn and i look in the UI.
Seems like unreal isn't updating the compents that are visible in the UI.
Google seems to indicate it migght be possible to do this in C++ by adding and removing the UPROPERTY of something or other - is it possible to do this in blueprint?

[foggy escarp]

What component are you adding? Sometimes the components don't show up in the hierarchy when doing this, but they are there.
What uproperty are you mentioning to remove?

Oh, your saying that in cpp you can set it to update?
I didn't know this was a thing, I assumed it was just a lacking feature/support.

[slim fern]

what is the correct way to cast this im trying to implement my functions from the component into this Task

[warped badger]

hello everyone, I come from Unity and I am now trying UE5, and some things are confusing me. For example, I want my windows to emit an emissive colour that has a random value for each window, so I am setting the scale value multiplying it with a constant and a PerInstanceRandom, this should give me a random value between 0 and 1, then multiply it with the given constant, and set the scale of the emission to that number. Except for some reason the PerInstanceRandom seems to always return the same number, every window has the same emission value, which seems to be 0. Now, the part that is confusing me is that every actor in my scene is considered an Instance, and they have a mesh component. Do I have to use an Instanced Mesh component instead?

[solar bison]

how to get the count of 1 element in array in BP? any helpers I can use?

[tawdry surge]

Do you mean the "index" ?

[elfin wolf]

as in count how many of one item you have in an array?

[solar bison]

what is filter array?

[solar bison]

yes

[tawdry surge]

Its an extra node.
You can call length on the array directly

[solar bison]

that's only for actors though, I want for any type

[paper galleon]

Same thing. It's a general array node

[solar bison]

goddamnit blueprints is so limited

[solar bison]

its not

[paper galleon]

Oh you meant the filter node. I thought it was for length.

[solar bison]

i hate having blueprints be this liited

limited*

now I have to create a map to get the count of each individual elements

ANNOYING!

[paper galleon]

That node filters by class.
You would have to build your own function to filter based on a set predicate.
Equality or something else.

[paper galleon]

Lol. I understand.
You can just do whatever you want in C++ then

[solar bison]

yes but then I have to return the result back to BPs because this is my UI widget

I don't need to do anything else in C++

1 whole class with just 1 function just for 1 function

dumb

[solar bison]

or maybe epic can work on expanding the APIs for blueprints

[paper galleon]

Hmm we have the tools to do so ourselves. K2 nodes. Ufunctions.

[solar bison]

lol

wait can I write a UFUNCTION outside of a class and expose it to BP?

how can I access it globally?

[paper galleon]

Nope but you can use a blueprint function library

It's technically a class but you don't have to instantiate it.

Just mark the functions as static

And they'll be accessible anywhere in Blueprints

Globally

[solar bison]

man

idk

filter, reduce, includes, these are functions that you expect out of the box

if blueprints is truly trying to be a replacement for scripting

[paper galleon]

You have a point.

I've never given it much thought tbh. I always write my own filter functions

[quiet dagger]

Hi. Could anyone help, is it possible to covert global variable to local? How can I do it?

[paper galleon]

Global variable?

There's no global variables

If you mean class variable to local function variable. You don't convert such things. Just add a local variable in the function as usual

[tawdry surge]

Don't know if this is still free, but someone already did it for you
https://www.unrealengine.com/marketplace/en-US/product/array-helper-bp-library

[solar bison]

why don't they just merge this into the engine

how do I get local player state in widget

[icy dragon]

Get player owner first perhaps?

[tawdry surge]

Widgets are client owned and not replicated, aren't they?

[solar bison]

Why is it that when I print my player state in widget, I get the same player state for client 1 and 2?????

Sometimes I get the correct list (0,1,2), but other times I get (0,1,1)? WHY????

[icy dragon]

Can you test clients in separate processes?

[solar bison]

but I've never had this issue before

literally this is bare minimum...

[icy dragon]

I was assuming you're testing it inside the editor, not as standalone process. The former is more expected to have less reliable results at times

[solar bison]

but why?????

how in the world am I supposed to test anything multiplayer related then

am I supposed to tick standalone game?

[paper galleon]

Man, Ro has it out for unreal today.

[elfin wolf]

lmao

it be like that sometimes

[paper galleon]

True dat

[solar bison]

im a longtime unity user

and I saw all the unreal demos and went "wow this is so cool, this is probably defacto better"

and this is honestly one of the worst programming experiences i've ever had in my life

[paper galleon]

Seriously I'd pick unreal any day over unity for 3d stuff.
You just have to be patient with the engine and take time to learn it properly.
Most unity stuff don't translate to UE and UE has more features.

[solar bison]

i know unreal is better

but this entire programming <-> UI flow I'm having a horrible time

I think next project (or maybe even this one) i think I'm going to nuke everything in BPs, move it into C++ and do only UMG stuff in BP

I'm straight up having a bad experience

[paper galleon]

I do most stuff in C++ but bp is indispensable in several aspects. Especially when interacting with assets.

[tawdry surge]

That will slow you down so much it's not even funny
Direct C++ development is way slower in a number of ways then BP
Better off just learning BP from the ground up and then convert later as needed

[solar bison]

i'm having the exact opposite experience

cpp feels much faster

I'm building a board game so very logic heavy. lots of test cases that I've gotta be meticulous about

etc

Array/set/map operations in blueprints feel like crap

[cold smelt]

I'm new to Unreal engine blueprints. These days I'm learning blueprints step by step.
I created a blueprint that can be the Number of tiles on X, the number of tiles on Y, Size of tiles (1000/3000).
Tiles array - An array with an object with the reference to a tile and an index for where the tile should be placed. Example: {tile: Tile01, position: You will then check this array to place predefined tiles and then populate the rest of the grid with filler tiles.
Filler tiles array - can provide an array of tiles that will fill the world

But I'm struggling to do Players should be able to walk around the plane and as they walk tiles will generate in front and tiles behind will be destroyed to always have the same amount of tiles loaded at any time.

I reached several ue4 blueprints programmers but it all end up in vain. plz, provide me assistance in this matter.

[tawdry surge]

Can't say I have a problem with any of those. However loops and container iterations are something I'd eventually put in C++ along with structs, networking logic, and anything I want to hide from designers.
For anything I haven't fully finished deciding on the logic for, I put in BP for the quick compilation and testing cycle, and BP node search kills any intellisense I've ever seen

[solar bison]

yeah this is something I'm realizing the hard way. Mine is accidentally a 50/50 split in logic

[opal pulsar]

hello, im using a timeline node to control the angle of the sun on the Y axis for a day/night cycle but the Y axis rotation is weird and it breaks
how can i achieve a set time rotation (example, 24 minutes) without it going crazy?

this is how im handling rotation at the moment:

CurrentTime goes from 0 to 24

YRotation = (CurrentTime / 24) * 360

if anyone knows how to help, please do

[solar bison]

And it's really bad rn. for eg: I have a custom event that's (Server, Reliable) that calls a CPP function. Def made some mistakes

[tawdry surge]

You can do that. It's trying to access BP stuff from cpp that'll get messy

[solar bison]

I know I can, it's just worse. ishould've kept it all in CPP

[tawdry surge]

Perfomantly speaking it's only slightly worse, and you can always move it later

[solar bison]

can I do this to remove the reference to a widget?

thereby making it nullptr?

[humble flume]

Can anybody tell me how to add or remove a curve in world

[rancid bobcat]

ok however if i have a vertical box lets say in the middle of my screen do you think it would be best then to make it a full screen anchor? sorry for asking i am super green with UE5

[white elbow]

is there a way to stop it? It's working as intended but ue thinks it's not

[elfin wolf]

sounds like youre trying to get the grabbed component when there isnt even one

add an is valid node before you the make array

[flint pier]

Hi! I have recently learned about unreal engine 5 from unreal senseand a couple of tutorials about blueprint and understood the basics,but my reason for going to unreal is to remake this game of mine i made in unity,the controlls shown in the video are basic,the character is a rigid body that when the wasd keys are pressed,a force is added depending on the forward direction of the camera as well as the right of it,and if holding shift whole pressing a key from the wasd an impulse is added in that direction as awell as pressing space,and finally the camera is rotated with the right click,so if anyone is just free and kind enough to teach me how to make that in unreal with blue prints and explain how they did it,i would really appreciate it!

[zealous moth]

@flint pier literally use the 3rd person template and study the third person character blueprint. It does all that out of the box.

[flint pier]

I did try that of course but i don't know how to apply it with a rigid body character

[zealous moth]

Just add the mesh as a static mesh component

By the looks of your vid you want to add torque. There is a ball template that does that

[flint pier]

Thanks i will try that!

[dusky crane]

if i add say, 5 items to an array, and then remove those items again, will the array still return a length of 5?

[paper galleon]

Nope

[gritty plover]

Hey, is there any way to nullify an actor's velocity through blueprints? Just set its velocity to be 0, to stop wherever it is?

[dusky crane]

thank you 😄

[paper galleon]

What kind of actor?
A regular actor or a character.

If regular actor use SetPhysicsLinearVelocity

[gritty plover]

A character, with a movement component.

[paper galleon]

StopMovementImmediately

Or you can set the maxwalkspeed to zero if you want something a bit more permanent.

[dusty oxide]

Hi all, can I somehow test a Timeline in the editor? I have some transition effect between effects on Timeline and I would like to test it without jumping into the game.
I have a Custom Event that I can Call In Editor, but it does not start the timeline, nor For Loops (I thought I just make a ForLoop with a Delay to simulate a timeline, but does not start).
Any ideas?

[gritty plover]

That's not exactly what I'm looking for. Essentially the character is either falling or being launched upwards, and I want to hold that character's position, wherever that may be. Disabling gravity doesn't really do anything, because the upward launch or the downward falling has already taken effect, and the character is already carrying some amount of falling velocity. I'm looking to completely disable that falling velocity.

[paper galleon]

Hmm. I don't think there's a way to directly set the character velocity. Let me check something

[tawdry surge]

Character movement has a set velocity function you can call

[paper galleon]

Actually you can set the velocity.

[gritty plover]

Oh my God

That works

Thank you so much!

[vernal lotus]

can I ignore PlayerCharacterController?

I really don't understand what it's doing

( I'm making singleplayer stuff )

[paper galleon]

PlayerCharacterController? Or PlayerController?

If the latter you can't really ignore it.

[vernal lotus]

uhhh

I mean this:

[paper galleon]

As your development progresses, you'd find reasons to subclass it.

[vernal lotus]

the thingy that comes by default

I'm doing some camera stuff

[paper galleon]

Is this a template or something? Cause that BP class isn't created by default unless in a template

[vernal lotus]

3rd person template I belive

[paper galleon]

Oh. Right. Like I said as you progress, you'd be adding more logic to that class.
But you can ignore it for now. Just don't delete it.

[vernal lotus]

I'm trying to get the camera to look at the character velocity direction

with this:

and the thing is

I know exactly what I want and how to do it

but

I get the feeling that my way is "incorrect"

like

I would just force it all to happen within this one blueprint

[high fractal]

Is FindLookatRotation better than using Forward Vector?

[vernal lotus]

I think it is?

I don't have the character turn to face their velocity so

• this is for some flying stuff, not walking

[paper galleon]

If it works. I guess so.

[vernal lotus]

that's what I think too

but I'm also scared

that unreal will get upset at me later

[paper galleon]

The code looks clean. I'm not exactly sure what it's meant for but if it works, it works.
If any issues arise later, you can just deal with them.

[vernal lotus]

alrighty then

[zealous meteor]

Hello, so I want to make a beeping system like those from metal detectors where they beep with a speed based on the distance between the device and the metal. Same system I want to apply here. I want to play a beep sound in tick event with a delay. The delay between the beeps is map ranged to be much smaller so I can use it as seconds. Everything works as intended but there is a problem. If I am at a distance of 4, the delay is gonna be 4 so it will wait 4 secs and then it will play. The problem is that I want the delay time to be changed dynamically. If it waits 4 secs for example and I'm getting nearer at the object, the distance gets smaller, so I want the delay to change with it. From counting 4, 3, 2, 1 to count for example like this: 4, 2.5, 1. TLDR: The wait time of the delay to change in real time. Not to wait until it successfully finished counting.

The custom event is wired to event tick

[tawdry surge]

@vernal lotus you could also tick the "use control yaw(pitch,roll)" box in the class defaults of the character BP and it will make the camera rotate with the character

[vernal lotus]

it's ticked

I need to switch between 3 camera modes tho

the default one being used for aiming

[tawdry surge]

The controller has a camera manager class that might come in handy then

[solar bison]

can I call static functions in BP?

[vernal lotus]

THIS

I ALMOST LOST MY MIND

[vernal lotus]

I can't find anything about this mythical camera manager

only some functions that seem useless

[tawdry surge]

Its attached to the player controller class
You make one from the details panel in said controller

[vernal lotus]

ooo

this?

and then what when I set it?

do I just write camera code in that instead of Character Blueprint?

kinda like anim blueprint?

[rotund thicket]

hi anyone know if there is something similar to this but for anim blend space:

[tawdry surge]

Yeah you can hit the plus to make your own and it'll give you access to alot of camera movement settings

I've never used it very much beyond limiting the pitch and little things like that

[vernal lotus]

ok I'll fiddle with it

[vernal lotus]

I'm already lost

[naive stag]

In line trace, how can I make the line 2 times longer?

[vernal lotus]

multiply it by 2?

[naive stag]

The end vector?

[vernal lotus]

yeah

[naive stag]

It was the first thing i did

It didn’t work

I need the line to be 2 times longer than it already is. How can I do that

[vernal lotus]

k hold on

can you send a sceen of the code?

[tawdry surge]

Did you do the whole thing or just the part before adding it to the start vector

[naive stag]

It’s literally just line trace by channel and start, end Input

[vernal lotus]

something like this?

here I shoot a ray from the camera

[naive stag]

No

[vernal lotus]

and to define the length of the ray

I multiply it by a float

[naive stag]

I’m literally talking about normal line trace without anything

[vernal lotus]

the 'Grapple range"

[tawdry surge]

Show an image, cuz tutori did it right

[naive stag]

Image of what?

There is no code

Like

[vernal lotus]

the blueprint nodes

the editor window

[naive stag]

I only have Start and End vectors. And I need the end trace to be 2 times longer but still facing the same direction

That’s all

[vernal lotus]

yeah

and for that you need the vector

to start somewhere

[naive stag]

I already have that

[vernal lotus]

and then travel a distance to reach the endpoint

[naive stag]

I just need to know how I can make the line 2 times longer

But still facing the same direction

[paper galleon]

You're repeating the question. They're trying to help

[vernal lotus]

can you send a screenshot of that line trace?

Shift + Windows + S

then drag a window

[naive stag]

They don’t really understand what I need, that’s why I’m repeating

Ok so

[vernal lotus]

yeah and for that I need the image

[paper galleon]

Send a screenshot of your code

[tawdry surge]

No we got it, but you don't seem to get how vectors work so we need to see the trace set up

[naive stag]

I have start and end vector, I need something that will make the end vector 2 times further than it already is but still facing the same direction

my code that u were asking for

i hve given start and end vector

[vernal lotus]

ok

so

[ripe flame]

hey everyone, im not sure this is the right place for this question, but im trying to use deformation of the landscape and a collision box in a blueprint to tell if the landscape is inside the box after the player interacts. i have been unable to get the landscape to say its overlapping the box. im not sure what to do from here. thanks for any tips

[vernal lotus]

you need to add the end to the start

and multiply the "End" by 2

[naive stag]

I see thank you

how did the image make you understand the question

[vernal lotus]

like this

[vernal lotus]

I needed to know how you define the "start" and "end" vectors

[naive stag]

the same way as they are defined on the Node that i mentioned

[vernal lotus]

"Literally just a line trace" confused me

cuz I never see line traces uses "Just by themselves"

[naive stag]

'Line Trace By Channel'

[vernal lotus]

they are always inside some type of system

[white elbow]

is there some way to detect if something's lit by a light source?

[vernal lotus]

you should check collision settings for both

and see if they match

they should have response set to overlap or block for their respective object types

[naive stag]

@vernal lotus unfortunately, its not working

[vernal lotus]

what is the value of "start" and "end"

[naive stag]

its not blank, if thats what u are asking

[vernal lotus]

it has to be anything other than zero

[naive stag]

so do u have any ideas?

[vernal lotus]

how can you tell it's not working?

[naive stag]

because I have visibility turned on and I see that the Trace itself ingame isnt going the right direction

[tawdry surge]

Are you trying to get it to trace down?

[naive stag]

No

[tawdry surge]

Up?

[naive stag]

Forward, backwards, right, left

and everywhere in between

[tawdry surge]

Z is up and down

[zealous meteor]

Can somebody help?

[naive stag]

I tested this code before and it worked perfectly

[naive stag]

and thats for Offset btw

its supposed to get that Offset and subtract it from end vector to make it smooth

[vernal lotus]

you should get the distance ( vector length ) between the metal detector and the nearest object

[zealous meteor]

Thats not a problem...

[vernal lotus]

then you can multiply the delay by that distance

[zealous meteor]

I did all of these

[naive stag]

gl

[zealous meteor]

The issue is that lets say the delay time becomes 4 and I run at the respective object, it will not beep straight away, it will wait for the delay to finish

[naive stag]

Use Rettriggerable Delay

[ripe flame]

ya both have overlap for world static, and both are world static. they are both generating overlaps as well.

[spark robin]

Can I make a mesh remain the same size relative to the screen/viewport regardless of the distance between the mesh & the active camera/view?

[zealous meteor]

It does nothing because the event tick keeps calling it

[naive stag]

Oh I see, its a bad idea to have Event Tick with delay connected together

try Event Function Timer i think its called

Set Timer By Event

mb

[vernal lotus]

are you using the "Hit Event" or the "Overlap Event"?

[zealous meteor]

looping off or on?

[naive stag]

If u want it to be like event tick, then yes

[zealous meteor]

yes meaning on?

[naive stag]

yup

mb for not clarifying

[zealous meteor]

and the event pin to the custom event pin?

[naive stag]

yes

[ripe flame]

overlap event

[naive stag]

the output pretty much

[vernal lotus]

huh

you have a print string to check if the event is triggering?

you know what tho

[zealous meteor]

Aight so I've done that and it ignores the variable assigned to the time pin

[ripe flame]

on the level blueprint i added a is overlapping on the tick even with a print string for both true and false.

[zealous meteor]

It plays the sound without delay

[vernal lotus]

it could be that the deformation doesn't affect collision of the landscape

I know for sure that displacement in materials doesn't affect collision

[ripe flame]

ya its a displacement in a material

[vernal lotus]

ahh

so there you go

it won't affect collision

cuz displacement runs only on the gpu

meaning it will use the original, pre-deformation collision

either simple or complex

it doesn't matter

[naive stag]

connect the input for Set Timer by Event to beginplay instead of event tick

[ripe flame]

alright ill have to figure out a different way to tell when the area is clear. thank you for your help

[vernal lotus]

np

[naive stag]

How can I make it so that my line trace would be 2 times longer than it already is?

[vernal lotus]

this is not "literally just a line trace"

[tawdry surge]

@naive stag so you are taking the (impact point - start trace) then taking the Z value and inverting it,
Subtracting the impact point again, doubling it, and adding it back to the starting location
After working that out on paper I have no idea what you intend for that to do, but it definitely has the most drastic effect on the z values

[naive stag]

?

[naive stag]

Before that line trace im using a Multi Sphere Trace By Channel, so I needed to make the result to be around the character without it being a bit down or up. So I just made an offset for that

[tawdry surge]

To double a line in the direction it's currently going you need a normalized vector (aka a direction) and a scale value(multiplier) then you add that to your trace start and it gives you a variable length line in that direction

To get what you want with what you've shown,, Subtract the start from the end, multiply the result and add it back to the start