blueprint

[drowsy rivet]

thank you a lot!

thank you so much!

[woven pond]

I was trying to do a 20s timelimit for all connected clients to make a decision within

starting the timer on the server seemed right however getting all connected clients to use that timer

[frosty heron]

What's stopping you from using the timer?

there's multiple ways of doing it, depending on the pros and cons you want to take.

[woven pond]

im gonna say my lack of experience and the instruction I had been given (and my searches)

im very open to a better way

[frosty heron]

do you actually need 20 seconds window for the clients?
if not then just use server and let clients suffer some penalty in time due to delay.

you can tell clients to run their own timer if you wish

but their timer can just be a visual indicator

[woven pond]

yes the 20s window is for decision making and id rather have it server managed due to lag etc?

[frosty heron]

depends on how you want to design it.

but you can look into round trip time to do some offsets.

basically calculating the time it takes for the letter to arrive

[woven pond]

well i was rep notifying the variable i was setting from the timer and just binding to it on change

[frosty heron]

You can do that too, that will just cost the bandwith more.

really up to you, what ever works.

You can also just replicate the initial value and let client tick their own timer.

instead updating all 8 clients every net update.

[woven pond]

i didnt want it on the clients as i didnt want them to be able to modify it.

it happens once every 2 mins or so, so was hoping it would be ok

[frosty heron]

doesn't matter if they modify it? server is the truth

they can modify the timer to 99999

why would that matter

it's just for visual.

the server can just carry on with the "no answer given" logic

once the timer expired

it didn't need to ask the client, Hey is your timer expired yet?

[woven pond]

i get what your saying and does make sense i guess its just what i had been told/found

no the server downt ask it just carries on

[frosty heron]

yeah you don't really want to trust the clients on a lot of things.

as they can modify the value on their end and nothing you can do to stop it.

[woven pond]

does that still work if o want them to be able to use a one time pause/extension?

[frosty heron]

there are casses where you have to accept the client data. Such as Moves and Shooting.
Normally the client send the data, but the server still verivy if the action is possible on their end.

[frosty heron]

if you are going to do that, I think the path of least resistance is just to replicate the time.

as in a float variable called the time

you can make the timer more accurate by accounting round trip time

[woven pond]

additionally if connecting the match late wouldnt it be better as a rep notify variable (say for the purposes of reconnecting when the timer is running?)

[frosty heron]

really up to you, I can't say what's better.

rep notify is less work the way I see it.

[woven pond]

do you have an opinion on another method for connecting when timer is running?

[frosty heron]

I will just Replicate the variable

[woven pond]

ok, thank you

[frosty heron]

path of least resistance to me

[frosty heron]

you should look into round trip time though

if you want the timer to be more accurate, but it's optional.

[woven pond]

I have found some bits but its all C++

but will keep looking

[frosty heron]

Nah, the concept can be done in blueprint

it's just calculating the time for the rpc to arrive

so you can offset the timer and kinda ahve almost the same time between server and client.

[woven pond]

So i found

https://medium.com/@invicticide/accurately-syncing-unreals-network-clock-87a3f9262594

but i dont fully grasp it to blueprint it out

[frosty heron]

Think about server replicating a timer value.
Lets say the timer is at 20 seconds.

By the time it arrive to client with 200 ms, the actual timer in the server is 19.8 when in client it's 20.0

if you subtract with round trip time.
In client it will be 20 - 0.2 = 19.8ish

not gonna be 100% but pretty close

[woven pond]

i was hoping that delay would be constant ish so when it starts 200ms later it also ends same

but get connections vary wildly

[frosty heron]

yes it depends on the connection so the best you can do is to calculate the average.

that article covers it.

[woven pond]

yeah, I thought so. Just implementing was where I was struggling

thanks for the feedback at least i know im in the ball park

[frosty heron]

@woven pond I just noticed something though, are you gonna be displaying in decimals?

because the server can only update soo many times in a second...

[woven pond]

kinda, was more a design choice

was only got for 20.1 (A tenth of a second)

[frosty heron]

Yeah looking at it, I would just have a timer running on the client.

especially if you have decimal

because you want to see it change smoothly

it will be weird to go from 20.9, 20.4, 20.1

you want it 20.9, 20.8, 20.7 , ....

So server will just inform the client the timer value and client can decrement it them self.

[woven pond]

ok, I can manage that (Although getting the time remainign if having connected part way through will be new)

[gentle urchin]

I used a local timer

With desired resolution

Start it on the server -> let client know it started
End it on the sercer -> let client know it ended

Anything in between was locally simulated

At whatever resolution you want

[tepid marlin]

Hi, iv been tearing my hair out trying to get my head around getting rid of cast to nodes in loads of blueprints that really shouldn't be done that way, managed to get a lot that don't rely on calling anything or setting anything to the characterBP but i cant find anything that actually helps set up an interface (assuming that's what i should be using) to help solve even the most basic of the functions i want to use....

character with a bullion called "has rubbish?" > interacts with a vending machine > takes a can and has bullion "has rubbish?" in the character set to true > interacts with a bin > checks for "has rubbish?" and if they do drop it and set the bullion to false

obviously using a cast to here works but im trying to cut down the fact that so many blueprints call with cast to, and instead of only being a few kb in memory, they are multiple gb due to the way hard references cascade down... but all tutorials i find only talk about creating a basic interact function with the interface and iv already got them sorted, and cant find anything about how to set and call variables in a more efficient way... i really want to get to grips with not using cast tos to change variables be it bullion, float or probably some others somewhere that would also need going in...

really would appriciate some direct help on this one as its driving me nuts and getting nowhere

[frosty heron]

Another victim getting rid of cast nodes to replace it with interface

casting is free, it's the hard reference that cost the memory foot print

solution is to cast to Native class (having a base class in c++)

that's why blueprint is not scaleable for big project imo.

Interface is not a replacement for cast, doing so will give you a debugging nightmare

https://dev.epicgames.com/community/learning/tutorials/l3E0/myth-busting-best-practices-in-unreal-engine

[tepid marlin]

so why do so many say not to, and why does the memory and disk size of a tiny asset scale up so big when using casting

[gentle urchin]

Casting to permanently loaded classes is fine (most player classes and game mode/instance/state

[frosty heron]

they have no idea, it's mostly a youtuber found out they are dealing with memory foot print. Make guesses , which is incorrect then as youtubers do best, they copy paste each other.
And the incorrect information get prepetuated.

the article covers it, I strongly suggest reading it.

take the word of Epic employee, not youtubers.

[tepid marlin]

i have got down to the bit about casting, how do i know which is hard or soft referances

[frosty heron]

The hard reference to the blueprint asset

casting to native class cost next to nothing and will not load it to memory.

[frosty heron]

Your character will always be loaded anyway, assuming there's only CC_Character_BP in the entire game

so cast away freely

for other things that is not always loaded, you want to cast to the native class

[tepid marlin]

generally all im wanting to clean up atm is anything that evolved around the player as it was seemingly increasing small asset sizes, as well as a lot of extra parts that arnt even related to that bp which im assumign is down to the cast to cascade

but if memory of something like a character is always there anyways, its not actually increasing it?

[frosty heron]

your character will be loaded anyway. But any hard reference that is referenced by the character will be loaded.

to load them at will, you can use soft reference.

but the context have to make sense

[tepid marlin]

oh right

so i can just go ahead and keep all the bps that use the character cast to to set and call variabls and functions and its not gona save any overhead as they are pretty much always on and avaialble anyways ( ticket machines, bins, drink machines, carnival game object pick ups, hidden object pick ups)

[frosty heron]

you can only safely cast to bp_character because you will inevitably have a characte to play anyway.

They will always be loaded just as Squize says, your game instance, your player state, etc.

but your game may not always have a ticket machines, bins, drinks, in the level

so you shouldn't just cast to the blueprint asset of ticket machibnes, bins, etc.

as the hard reference produced will load them to memory, even if they don't exist in the map

The myth buster article is a gem, spend a few minutes to read through them.

[tepid marlin]

so those 2 nodes.... this is what i dont get, how to get 2 different casts up when theres only seemingly the option for 1 of them and the other is a class,

[frosty heron]

the native class is declared in c++

blueprint only project doesn't scale well

you either live with the limitation or learn what you have to learn

Blueprint is running on virtual machine, a hard ref to the bp asset will load it to memory

[tepid marlin]

so how do i get to look at c++ blueprinting?

if its limited to blueprint only

how is it limited to bp only

[frosty heron]

I would suggest learning cpp outside unreal first. Know how to use functions and declaring variable, then pointer. That's probably about it.

learncpp.com

just to learn the basic probably take you a week. And with just the basic you can probably do things already.

kinda open a whole new world

[tepid marlin]

hmmm fair enough

[frosty heron]

you can start exposing a lot of the engine. 70% or more engine function probably not exposed to blueprint

there's no reward for bp only project but you can reap the benefit from using a little c++

like not having to use broken blueprint struct

[lofty rapids]

it's significantly faster at things in c++

blueprint is great to use but definately has it limitations

[frosty heron]

good for glueing functions together and asset reference or data only bp.
Use the best of the both world

[astral ravine]

hi everyone, is there a simple way to implement this scroll function in unreal? I want to be able to walk up and press a button for it to scroll.

https://www.youtube.com/watch?v=GjRgBxCXsdk&ab_channel=SouthboundBuff

[tepid marlin]

ooo i know an answer to that one but not sure its the best solution... i have a scrolling dot matrix sign that just runs by itself, creating a material with a panner that just sits, but if you made a panner with paramerters and then an instance, in the blueprint you could control the speed and direction of the panning variables with key presses?

and the texture is just quite long and thing (8192x256) just coz it has a long message

[astral ravine]

well for now ill have it set to one sign, how can I do that in the material?

[tepid marlin]

as in just a simple image as a texure and thats applied as a material in a seperate slot? if it involves anything properly uv mapped then im out of luck on that front

[shell lichen]

Hello! I’m trying to have the background blur strength of a widget change incrementally as the player does a task. How can I promote this to a variable and assign it a dynamic value?

[kind willow]

When in widget mode, click on your blur and go to the upper right and check "is variable". Then it will act just like a component and can be accessed trough casting

[dawn gazelle]

The widget component itself contains the current value. You just need to adjust its value as you see fit.

[shell lichen]

Hmm ok I think I’m close but it doesn’t seem to be actually changing

[kind willow]

You can always try it with a post process effect instead of a widget

[shell lichen]

The widget is already in the viewport at this point

Yeah if there’s an easier way to do this that would be great haha. Basically what I’m trying to do is if the player chooses to drink alcohol, everything gets a little blurrier. If the player then drinks water, it gets less blurry. My thought was to do it with a basic widget but maybe that’s not the way to go?

[dawn gazelle]

This is creating another widget and manipulating the value on it, but this widget isn't added to the screen.
You either need to communicate to the widget you've already added to the viewport or have the widget listen for an event dispatcher that you could trigger so it can adjust itself as needed.

[inner minnow]

Anybody know the best way to execute these commands? Seems to activate about half the time after re-launching the game. Even worse when trying to get it to catch with packaged build:

Please @ or reply me so I can see. Thanks in advance if anybody knows

I have these in the level's gamemode bp atm

[maiden wadi]

I'd consider moving them to something like the player controller. They may be running too early for something. Game mode is one of the first created. May or may not help with some commands.

I'm also not 100% sure, but I think the lumen ones should be put in an ini.

[inner minnow]

Thank you, I'll try that next

[crude sedge]

So I have a pawn as my player, this is just not working, here's my move IA too.

[pastel apex]

question, i want to make a diving attack which includes the ability to land directly on top of enemies and displace them from their position or at least displace the player near them if knockback isn't possible. I just mainly want to know what's a good way to achieve this?

i know characters with their capsule colliders by default will bounce off any other capsule collider that tries to get on top of it

[dawn gazelle]

Do you have any movement component that is utilizing the movement input on that pawn?

[eternal cradle]

you can adjust this so the capsule is steppable

[pastel apex]

oh?

where in the settings of the capsule collider will it do that?

[eternal cradle]

it should be.. Can Character Step Up On

[pastel apex]

ohh ok

hmm

though it will allow them to stack on top of each other

i guess that isn't the actual desired behavior since i want either the enemy or the player to displace and for the latter i don't want them to bounce away, more so slide along the target's capsule to the nearest possible place

[pastel apex]

i imagine for that, it will allow for them to stack on top right?

[eternal cradle]

you dont necessarily have to

but I'm not 100% understanding what you want to achieve

[pastel apex]

lemme doodle what i want

[crude sedge]

oh I don't, but with just print strings it was working just fine

I added one and it works. Thanks!

[pastel apex]

basically i want to do the no knockback effect

where the player slides near the enemy from above when they don't trigger knockback

cause at least with the default behavior

if the player falls directly above the enemy, they get pushed away a considerable distance from the enemy

guess the answer to my question would be

how do i reduce this bounce force?

[inner minnow]

This worked perfectly. Thanks again

[maiden wadi]

Glad it worked. 😄 On a general note, PlayerController is one of the safest place for console commands due to it being a major part of what runs exec commands same as if a player entered them by hand in the console themselves.

[crude sedge]

How can I make it so I can't jump in the air? Im not too sure what to do.

[craggy flicker]

how can I create a variable as a "structure" then change the variable type to "specific structure"? like for example, I have different products with different product structures. in the product container ui, I have a StructRef variable. How can I set the StructRef variable to an abstract, then set the type based off an input of a function?

ie, StructRef becomes ProductCupsStruct

or it could become ProductFurnitureStruct

[eternal cradle]

I'd suggest you look at Instanced Structs

[craggy flicker]

ty

[pastel apex]

is there a way to reduce the bounce intensity when two actors are stacked on top of each other and they can't step on each other?

[eternal cradle]

I'm not sure :/ this might be configurable thru c++

[pastel apex]

time to go deeper then

[eternal cradle]

you can perhaps set the step up enum to "yes" and do a manual check on possibly event hit or something

[pastel apex]

i guess i could yeah

[eternal cradle]

on event hit you'd check the impact normal and accordingly add a custom impulse to target actor

[craggy flicker]

sorry, how would i then cast the instanced struct to the specific struct type? I have a StructRef var as Instanced Struct

i set up a switch-case based off a types input

[eternal cradle]

ok so its a bit weird

[craggy flicker]

uh oh

[eternal cradle]

not too bad

[craggy flicker]

this is one of those things that would be easier if programmed instead of blueprint lol

[eternal cradle]

possibly 😅

but nahh

[craggy flicker]

basically what I have is a MarketItem widget with a SetProductDetails function

the SetProductDetails function has a Type and Struct input

the Type is of ProductTypes

[eternal cradle]

here's an example

[craggy flicker]

oh are you just checking if the struct has a certain value?

[eternal cradle]

in your case it might be easier if you have an enum as an identifier

aye

[craggy flicker]

gotcha

like json basically

okay

ty

[eternal cradle]

no worries

[craggy flicker]

let's say it's valid

would i then be able to do "make struct" and set the struct ref to that make struct output

from the struct input

[eternal cradle]

you can make an instanced struct

the valid checks if, for e.g in my example, if** FStatusEffectTick** == the RelevantData (instanced) struct

[craggy flicker]

yeah because of the "get value" stuff

[eternal cradle]

right

[craggy flicker]

okay ty 🙂

[eternal cradle]

np! gl

instanced structs are pretty new to bp i think. but they're very neat. bit messy tho

[craggy flicker]

oh wait

sorry my scenario is a bit different, since I have a types input I'm able to determine what struct type to apply automatically

would i just set the values of the struct ref based off the type?

[eternal cradle]

so.. StructRef is the instanced struct right?

[craggy flicker]

like for instance, if it's a "Cup" type, I can set the struct from the function input?

yes

[eternal cradle]

so what you'd need to do is make an instanced struct out of whatever struct you have before passing it into the input pin

[craggy flicker]

gotcha

then i break and check the value

[eternal cradle]

right

[craggy flicker]

this is my use case btw

im reading each row of a data table, spawning a widget accordingly

[eternal cradle]

I see. Makes sense

it'd 100% work for your case

in my case I'm using them for status effect "effects"

so like..
poison rank I - tick damage (using tick damage struct)
poison rank II - one-time damage (using one-time stat change struct)
poison rank III - one-time damage + tick damage (using yet another struct)

[craggy flicker]

that's a pretty neat use case

how far have you abstracted the potions and types

[eternal cradle]

quite a bit 😅

this is how the data asset looks

[digital glacier]

any reason this isnt working

maybe something in the event settigns?

[frosty heron]

print string and see if the input is even registered

[digital glacier]

its not

[frosty heron]

show the blueprint class uncropped.

[frosty heron]

and still cropped

rip

[digital glacier]

lol idk what youd get from the other parts but here u go

[frosty heron]

like the base class it's derived from

[digital glacier]

the actor logo?

alright

/parent class

[frosty heron]

input are disabled on actor by default @digital glacier

also I hope that's just a test because handling inputs in non centralized manner is a nightmare

if you want to enable input on that actor you will need to enable it.

Actor -> Enable input

For a test you can do
BeginPlay -> get a ref to self -> Enable input (Plug your player controller)

but seriously, delete that after you are done, you don't want to handle inputs outside of input component / character / controller.

[digital glacier]

THE GOATT

🙏

[frosty heron]

read the rest of the sentence though.

you will be shooting your own foot if you have inputs on doors, etc.

[digital glacier]

dont worry its a test ;p

[digital glacier]

anyone have an idea as to why when the Result finally gets processed after 4 digits, immediatly pressing the 4th digit for the PIN is an automatic success?

it may have to do with the fact that the "Then 1" node never executes?

is this because the return node has already set?

[frosty heron]

the purple pin will not be executed as you have returned (exit) the function.

[digital glacier]

i need it to reset all vars in this function once the 4 digit code has been processed though :/

could i just do it after the function?

in the event graph*

[frosty heron]

please read

delete the sequence node, reset your variables before returning.

[digital glacier]

ill try that thank you

[frosty heron]

or keep the sequence and return last

[dreamy sail]

Hi everyone, big noob here, so apologies in advance.

I am trying to create a speedrun system, for my 38 levels with 4 different difficulties, but I can't make it work for some reason.

I tried arrays and data tables, but with no success....

Basically in the screenshot you can see exactly what I want to accomplish, just a simple speedrun system that will track the total time of the level and will only save it if it's lower than the previous one ( keep best, basically)

How can I turn this 1 variable into 152, which is 4 difficulty levels with 38 levels each.

Please explain to me like I'm an idiot, 'cuz I am...

[dawn gazelle]

You may want to consider using a Map variable.
Maps are like arrays but allow you to reference a specific entry by a key.

This allows you to create a key > value pair. So if you have some way of identifying each level and its difficulty, you can access the particular value for that particular level and difficulty.

[dreamy sail]

I have strings, that are different for each level/difficulty

[dawn gazelle]

That could be useful for a map lookup as you can use the string as the key.

[dreamy sail]

but chat gpt is driving me crazy, when I try to use it so it can help me to create the map properly

this is what I had in the map initially

the first one is a string, the others are floats

I was trying to use the unique name of the string, and then store the float value based on difficulty

[dawn gazelle]

Is that a structure you're using?

[dreamy sail]

but what are the exact nodes that I need ? to sort through all this stuff

[dreamy sail]

sorry I was showing you a data table my bad

I thought it was a map

it was a data table witha struct

[dawn gazelle]

Ok, so it is a structure in that case... Data tables are read only, you can't really save information to them during runtime of the game.

[dreamy sail]

yeah this is the struct

[dawn gazelle]

What I would probably do, is remove the string from the structure. It is still useful as it contains the values for each difficulty level and you can use that to store things within a map.... One moment.

So here's how you can create a map variable type.... You'd want to probably store something like this in your save game object.

[dreamy sail]

so its a string with any kind of variable I want ?

or why is it blue/what type is it

the second one

can I turn it into a float ?

sorry for all these questions , I'll wait , in case you're still formulating the idea. I'll calm down 😄

[dawn gazelle]

You can use a lot of different things for the key and basically anything you want for the value. In my case I used a string for the key, and a custom structure similar to yours as the value.

[dreamy sail]

I see, let me try to understand it for a second

[dawn gazelle]

So then if you had an entry labelled "Level1" in the map and you were using a "FIND" with it, it would return the structure that contains all the values stored for "Level1". "Level2" would have a different set of values.

[dreamy sail]

can I bypass the need to add all existing values if I use 4 different save slots, for each difficulty level ? so basically each difficulty level will be a separate save

for this part I mean

[dawn gazelle]

It would look something like this... I use an enumerator here to switch.

[dreamy sail]

ok let me dig into this, much appreciated!

[uncut shale]

damn your BPs look really cool

[fiery swallow]

think the plugin for it is called flat nodes, don't remember the plugin for the straight lines

iirc that one was paid

[spark steppe]

electric nodes

[craggy flicker]

electric nodes and flad nodes

[gentle urchin]

Flat 😂

[craggy flicker]

?

[gentle urchin]

Oh it was actually a thing lol

Surprised Datura dont have electric (anymore?)

[dawn gazelle]

I do... I also have like... 3 versions of unreal installed with a variety of projects all over the place that don't all have the plugin enabled. XD

[gentle urchin]

busy entrepreneur!

vivid project enthusiast

[maiden wadi]

I really dislike the flat nodes. And I don't use enough reroutes to care about electronic lines.

[lusty birch]

flat nodes...this is the way

[gentle urchin]

Yeah no, i stick with default lazy as it may be

[main flume]

Hey,
I am trying to convert my Landscapespline to a normal Spline, including the tangents. Currently, when I try to implement that the tangents are projected weirdly, a fix or some help would be great!
I attached images of my implementation and the output below...
Documentation about the tangents:
https://github.com/arbitrarygames/LandscapeSplineHelper/wiki/Documentation

[gentle urchin]

seems like youii got the wrong direciton vector

invert it 🙂

*-1

[main flume]

Yea I tried that, sometimes there are still loops

[gentle urchin]

looking at the screenshot you sent, they're only reversed

[main flume]

Give me a second I'll show another example brb

Ohhh wait I might have an idea

So now the tangents actually get applied, the update spline ruined it. But there are still loops and the tangents are still not correct....

[gentle urchin]

screenshot ?

[main flume]

Yea, I'll make a quick screen record in a sec

https://streamable.com/hhhyds

Should be uploaded in a second

[gentle urchin]

I guess what you could do is check the direction vs next node

to figure out if you need to flip it or not

sounds like the data you're after should just be avaliable tho

[main flume]

I'll try that...

[mortal palm]

you only use Connection 1, and not Connection 2, is this normal? Have you tried using everything in world space?

[main flume]

The second connection is the other end of the first connection, so if I loop through it it will get checked either way

I have tried worldspace

[gentle urchin]

second connection gives you a basis for the rotator tho, doesnt it

[main flume]

I'll check, after a zoom meeting brb

Some updated blueprints...still wild results at some parts

Loops and inacuraccies

I tried both rotation and calculating it on my own and it wont work

[mortal palm]

Isn't there a leave/arrive tangent?

[main flume]

I tried that too, but there is 0 difference in the result

Results in way more loops

[mortal palm]

Sorry I'm not sure. If you don't care about it being exact, you could recompute the tangents manually from the spline points. Add debug lines to see how your tangents look like

[main flume]

How do you think I can recompute the tangents to match the landscapesplines path?

I might have found 1 breadcrub trace...The tangent rotation is in landscape space

[mortal palm]

you'd use: tangent at spline point i = (point "i+1" - point "i-1") / 2 or / 3 or something like that?

but staying with your solution, can you add debug lines for your tangents?

[main flume]

Yes!

Give me some time, I'll try to convert the rotation to normal space

[mortal palm]

I think it'd put the Connection 1 tangent length to the leave tangent of the first control point, and the Connection 2 tangent length to the arrive tangent of the second control point. Might be clearer if you create a different loop to first create the spline points

[main flume]

I will try that

[gentle urchin]

but this is the wrong direction it seems , just oposite

either -1 the resulting direction or reverse the subtraction inputs

[main flume]

I successfully converted the tangents to worldspace, but they dont seem to work with my spline yet

[mortal palm]

can you display them with draw debug line or something similar?

[main flume]

Some tangents are correct now, but not all

The debug is really wierd though

[mortal palm]

can you show your debug node?

I was thinking, draw debug line from:
Connection 1 control point to
Connection 1 control point + (Connection 2 cp - connection 1 cp).GetNormal * Connection 1 tangent length

[main flume]

Okay let me do that rq

I'll quickly disable the tanget code just to see whats going on

[main flume]

What do you mean by getnormal?

[gentle urchin]

Normalize

[main flume]

ah

The wiki: https://github.com/arbitrarygames/LandscapeSplineHelper
https://github.com/arbitrarygames/LandscapeSplineHelper/wiki/Documentation

[jade inlet]

Okay, so I changed that, but now I ain't able to define the value on the fly anymore. I guess that's the reason why I plugged the PropertySize to itself, because this way it worked.

[gentle urchin]

it doesnt do anything tho

so that's not the reason why something worked

vs not working

Its like litteraly saying 1 is 1

setting 1 to 1 again, mmeans absolutely nothing ^^

[mortal palm]

Looking good? So you could plug this tangent in the leave tangent of control point 1. (and maybe same tangent in the arrive tangent of control point 2)

[jade inlet]

I don't know what you mean by break point. I'm not very familiar with all the BP nodes and will have to do some research first ^^

[gentle urchin]

Right click the node -> Add breakpoint

the code will stop e xecution at that noode

allowing you to inspect surrounding values at that point in time

[jade inlet]

@gentle urchin
Regarding "logic for retrying" and "clamp" it's the same as for the break point. I will have to do some research on how to do the logic and what the clamp node does.

[gentle urchin]

Clamp sets the final value to be within the clamped values

so if the set value is < or > than clamp min/clamp max, it'll be set to the corresponding limit instead

I suggested a Max clamp (clamps the minimum value), if the desired outcome is that it is random, but minimum 5

There are a few other alternatives to ensure fair distribution , since this will be heavily weighted depending on the size of PropertySize

If we say for example max would be 6, then 86% of the cases would have 5, and only 14% would have 6, in a random test of 10000 values

to adjust for this, the randomm must work with the a value where minimum (5 in this case) is subtracted, then re-added after the random

[jade inlet]

@gentle urchin

so that's not the reason why something worked
...
setting 1 to 1 again, mmeans absolutely nothing ^^

Well, but why doesn't it work then if I don't plug in the variable to itself? 😅
If I don't do that and the variable is set to 0, I can enter any number, but it won't be saved.

[main flume]

uhhhh xD

[gentle urchin]

the thing you're doing doesnt save the value. I suspect you're doing something else that resets it to 0 😄

when you remove it, you remove the set node aswell, right ?

[mortal palm]

try to divide by 2 or 3

[main flume]

Still a really wierd result

[jade inlet]

No, just the get node, but then I connect all the other nodes to the set node, which were connected with the get node

[main flume]

The tangent itself looks really wierd too

Its not following the tangent itself

[gentle urchin]

you gotta remove the set node aswell...

if you dont want it to be 0

[main flume]

I found cubic interpolation online, but I'll need to make that and that will take a while

[mortal palm]

move the tangents higher so that we can see them, and color the arrive tangents in another color (from control point 2 - tangent to control point 2)

can you show code again too? (maybe we should move the discussion in a subdiscussion or something to avoid spamming?)

[jade inlet]

@gentle urchin
Hmkay, I try it

[little prism]

Hi All,

Can someone point me to the solution to my problem? As you can see on the video, when I enter UI I show Mouse Cursor but the UI is not "active" until I press a mouse button, only then I get highlights and can interact with UI...

Code for freezing character so it doesn't move attached

[main flume]

A bit of a mess

Moved higher

[jade inlet]

@gentle urchin
It's still set to 0. I mean I can enter a value in the set node, but no matter what I enter, if I want to change value on the fly, it won't be saved.

[dark drum]

Give set input mode to UI only. You might need to focus the widget as well.

[little prism]

I am playing with this now, I hit another issues tho..

I was trying to control game/UI state from the Player Controller object but when I switch input mode to UI then standard action buttons don't work... Is it better to keep the input mode logic in the HUD instead?

[dark drum]

If you're using enhanced inputs, these wont fire if in UI only input mode. (even if placed in a widget)

[glossy cloak]

Setting a variable to itself is like saying 'Hey cat. You're a cat." it accomplishes nothing. If you need to change the value of a variable on the fly just use set and change it.

[gentle urchin]

or get, as in this case i belieive it was changed in the default value section

the confusion was thinking they needed to set, to be able to get

[jade inlet]

But otherwise the cat probably wouldn't know that it's a cat if no one tells her 😅

[gray ingot]

Hi, i am now working on gravitation, but when i try to walk on walls it does not properly (when i go straight, the anims are rotated 90 degrees to left/right) calculating the animation direction for locomotions system, i now have it like this, any ideas how i can fix it?

[jade inlet]

But yes, you're right! There were other issues why my code didn't work after the change. Thanks to you and @gentle urchin who helped me fixing the issue!

[violet bison]

how to remove a static mesh component?

that is added via blueprint

[fiery swallow]

DestroyComponent

[dark drum]

You probably need to adjust based on the normal vector of the surface the character is walking on. If you're just changing gravity direction, you might be able to use that.

[violet bison]

it didn't work

[gray ingot]

Yeah, i am changing the gravity direction, can you please tell more indepth what you meant?

How exactly i need to "adjust" it

[dark drum]

Well for example, in the basic foot IK control rig, it performs a line trace to determine where the foot should be placed. This assumes the gravity direction never changes meaning it will always perform a trace from the foot downwards. However, if you've rotated the character and changed gravity direction, instead of doing it 'down' you would want to trace in the direction of the gravity. Not doing this could result in the feet being snapped weirdly.

There could be other placed you might need to do the same thing.

[fiery swallow]

If this a multiplayer game things get more complicated

[main flume]

Is there any way to make the tangent on one side longer than the other of a spline?

[gray ingot]

Hm, btw i am updating my gravity based on line trace from foot like this

So i need to get impact normal, but where exactly i need to use it? instead of velocity?

[dark drum]

It's hard to say. You'd need to address it on a case by case basis. Of course the one I gave was just regarding the foot IK stuff.

[gray ingot]

Yeah, but i have 8 direction locomotion system and i need to somehow calculate direction accounting the gravity direction :/

[violet bison]

I only need it to run on owning client

[kind willow]

I need to simulate gravity in flying movement mode so that the player "sinks" slowly. I tried stuff like add force and add velocity, but it didn't work for flying movement type. Any way to add velocity to a flying character?

"launch character" kinda works, but it caused my character to vibrate once they touched the ground

[main flume]

Does anybody know how to fix the tangent (orange) that is not aligned with the green arrow.

(The bottom graph)

GetRelativeRotation gets the tangent rotation in landscape space

[reef scroll]

Hi, I have a problem with two objects wich are overlaping each other. On biger object TEAPOT its show line when is mouse cursor goes over. On second object, a CUP is smller but in a same place as TEAPOT when mouse cursor goes over line dont show up.
All is present in short video.
For changing objects I use level variant set. The BP objects seting are present in video.
[10:54 AM]
https://youtu.be/BQk-D6uq9oY

@reef scroll

[pulsar axle]

Hey I really need some help with blueprints, particularly collisions overlapping with either objects or other collision boxes (I've tried both)

and I've struggled all day, is anyone available to do a call to help me out?

[wise cradle]

How to create DataTable With RowStructure

[gentle urchin]

C++ only afaik

[wise cradle]

Sorry What do you Mean "afaik"?

[thin panther]

afaik = "as far as I know"

[faint pasture]

the structure the data table has been created based on has been deleted

what struct did you base that data table on?

[kind estuary]

Is there a way to call UpdateArmyUI directly instead of creating this dummy event with an argument just for it ?

[thin panther]

Create event node will do it if there's a matching signature

[kind estuary]

like this? And it magically works?

[wise cradle]

i don't know myself

[gentle urchin]

I suspect its created without a base struct

Editor tricks this with the prompt during asset creation

[wise cradle]

How to create it with base struct then

[gentle urchin]

Where it asks for the row struct

[wise cradle]

i am creating asset out with blueprint nodes

[gentle urchin]

Im aware 😅

Is it a static struct you wanna use ?

Or dynamic?

[kind estuary]

Cant seem to be able to call /broadcast this ED... I set it up in C++

There should be a Call or Broadcast, right?

[wise cradle]

What's The Diffrence ?

[gentle urchin]

Dynamic suggest that you pick struct type somewhere along the way of creation

While static means you can get away with precreating the base DT andnusing that as the class

I assume you wanna fill the data by script?

[wise cradle]

Yes ! Dynamic Lesson Please

[gentle urchin]

C++ 😅

No bp can do

[wise cradle]

Oh You Have to us C++ For That Sure I haven't found how to do it in c++ that's why i am using BP

[gentle urchin]

Theres a datatableutilitylibrary

Which has all youd need

To get started*

[wise cradle]

I am searching that

[gentle urchin]

You can check what the editor does aswell

[wise cradle]

I have though About it doing it agin i don't know how? debuging maybe

[gentle urchin]

Yuss

[wise cradle]

There are no Creation Function Here

[gentle urchin]

It got Rename row etc right?

[wise cradle]

Only Some Assign and Getter Function

[wise cradle]

no

https://dev.epicgames.com/documentation/en-us/unreal-engine/API/Runtime/Engine/Kismet/UDataTableFunctionLibrary This One Got Row But not Rename.

[gentle urchin]

FDataTableEditorUtils

[wise cradle]

Okay It's in The UnrealEd Folder

Yeah I Got The File

[gentle urchin]

also looking at DataTable.cpp

CreateTableFromRawData

I think you'd want to create the DT Asset, then set its struct post creation

seems like its mostly marking it for change, setting rowstruct, and save

[wise cradle]

Will the DataTable Will Be Shown In Content Browser If create it from c++

[gentle urchin]

Yes,

but you dont need to create it from c++

you just gotta expose editor functions that lets you provide a struct to it

now providing a UScriptStruct probably also needs a c++ function, but that's just another step I naively assume

[gilded whale]

Link to blueprint: https://blueprintue.com/blueprint/p2hgpwio/

Hello! I am making a game for the first time! I am trying to work on movement mechanics first because I think they are interesting.

I am currently working on a Tarzan-style swing mechanic. My only issue is that I can't see my grapple cable when I press my grapple key. The swing part works. I tried debugging the grapple point actor (the actor I use for the attach end to actor node to attach the grapple) spawn and confirmed that the actor is indeed spawning each button press, I’m not sure how to confirm where. I tried to connect my cable to the grapple point but the cable is not visible. I made sure visibility is set to true everywhere I could for debugging purposes, but still nothing. I also use the same exact cable component elsewhere in my project and it works fine there and can be seen when I want it to pop up, but it just won't do it here...

I would really appreciate if anyone could help figure out why the cable isn’t showing, that would be awesome. Any tips to improve the grapple/how to remove the event tick (I've herd it is an evil deity we shall not use because it's bad for performance) and still keep original functionality would also be appreciated!

While I’m at it, any tips for learning UE would be amazing because I’m new and suck badly at blueprint lol.

Thanks in advance for your input and have a wonderful day! :)

[frank olive]

How can I get forward and right vectors for movement relative to the way my character is facing?

[faint pasture]

dot product or unrotate vector

what do you want at the end of the day?

I'm guessing you want to know your forward and right SPEED correct?

[frank olive]

I need the forward and right speed for the animation blendspace to function correctly regardless of which way I'm facing

that's why it needs to be relative to the rotation my character is facing

[faint pasture]

yes so dot product velocity and Char.Forward and Char.Right

or unrotate velocity using the capsule's rotation and break it

they're equivelent, you'll get the velocity elements in local space

[frank olive]

So like this?

[agile moss]

The player pawn is a moving platform on the X axis, I want the camera to be static in the middle basically different actors (a camera and a platform controlled by the player). How do I do that?

[faint pasture]

average their location, modify the one axis you want

[frank olive]

yeah, so it's kind of working, but for some reason the right speed is static at 0 according to the debugging, while the forward speed works correctly, this also lines up with the animations working when I'm facing the direction or opposite of the direction I'm walking, but strafing doesn't work for some reason, I don't know why the "rightspeed" isn't changing whatsoever

[faint pasture]

say you want cam at their average position but 1000 on y

CamPos = (AvgPos.X, 1000, AvgPos.Z)

[faint pasture]

show code

[faint pasture]

why you crossing the streams like that

what event is triggering the lower code path?

[frank olive]

Event BlueprintUpdateAnimation

[faint pasture]

just use a getter on Character, don't drag off that upper path like that. Probably doesn't matter but it can

it's logically the same but way less gross

[frank olive]

did that, however still doesn't work

And yeah, "Right Speed" is static at 0 which based on what the animation looks like makes sense, what doesn't make sense to me is why it's stuck at 0

[maiden wadi]

Forward and Right speed, are just the velocity, transformed to local space, and the X and Y pulled for them.

[faint pasture]

can you actually strafe?

[frank olive]

Yeah, but the animation doesn't work

[faint pasture]

Show a short clip, make capsule visible

also make arrow visible

[maiden wadi]

Why a dot for the speed though?

[narrow sentinel]

Anyone able to help with why I would get Object name of None if I get my widget component and so get user widget object ??

obvs setting a valid class

[faint pasture]

local speed, speed on local y axis

could also do it by unrotating velocity but same difference

[maiden wadi]

Dot is a measurement of directional compatibility. Not a speed.

[faint pasture]

the dot product of a world velocity and a direction vector is the speed in that direction

[maiden wadi]

It's not. Dot is -1 to 1. Speed is 0 to 90000000000

[frank olive]

Here's what it looks like

[faint pasture]

that's if the inputs are normalized

[frank olive]

I'm very much a beginner though wdym by capsule and arrow?

[faint pasture]

the components in your character BP

so we can see if they're rotating to match velocity or not

[maiden wadi]

Also is your blendspace in -1 to 1 or are you using actual speed from like -600 to 600 ?

[frank olive]

You mean like this?

[frank olive]

-150 to 150 on both axies since that's the max speed I set for aiming

[faint pasture]

uncheck hidden in game on the capsule and arrow

[frank olive]

unchecked for capsule but how do I do that for the arrow? the details panel is just empty

[faint pasture]

mabye can't, let's see it

I'm trying to see waht the capsule is doing

[frank olive]

alr let me get a clip real quick

[faint pasture]

add another arrow to it if you need to

[maiden wadi]

How did you test that this is 0 btw?

[faint pasture]

what in the actual hell

print those speeds

print the right vector

print everythng

[kind estuary]

When you are making a complicated game with lots of UI. They you make the UI in one Widget, and then hide / unhide as they are need (or collapse uncollapse). Or you Create Widget when they are needed?

[faint pasture]

I'd say it depends on how much UI and how dynamic it is

[kind estuary]

🫡 lots of ui

like you have cities and units, and armies

and you click on them, they have different ui for each one

[faint pasture]

And is most of it visible at all times or does it come in and out like EVE online

give example

[frank olive]

It's also quite weird they don't add up to 150, and even if the arrow is pointing one direction and I'm moving perpendicular to the arrow it's still "ForwardSpeed" that is high

[kind estuary]

it actually replaces. A good example is crusader kings.
So you have your city selected, it spawns WG_City. But if you select an army, it spawns UI of Army,

i mean doesnt need to spawn

i dont know how they do it

could be all in one widget, and then hide unhide

as i was saying

[frank olive]

with the debugger on the left of the recording, which by the looks of it doesn't match the value I get when printing as you can see in the latest video

[maiden wadi]

From a performance standpoint, either work so long as you follow two rules. Use Collapse and not Hide. Hiding a widget will still make it prepass for layout. Collapsing will not. The second is to remove bindings when the widget is collapsed. No need for game code to run on 200 widgets that aren't even seen. Also for this reason even when you remove a widget you should always unbind stuff in Event Destruct, cause they'll still run until the widget is collected.

From a design and architecture standpoint, I'd almost always go for creation on the fly. Hard placing a ton of widgets in another is going to cause a ton of reference issues in editor, it's going to be messy in your widgets. You end up locking yourself out of modability. You never really have to worry about hidden performance issues.

[faint pasture]

they wouldn't add up to 150 the same way 3 and 4 don't add up to 5

pythagorean

[frank olive]

right, makes sense

[faint pasture]

so it looks like they are correct at this point, now whether or not they get modified later or aren't being used correctly is another story

[kind estuary]

ahh, i never use binds in the widget. i use event dispatchers

[maiden wadi]

That's what I meant. Delegates bound to a function.

[frank olive]

This is the blend space and the aiming state

[kind estuary]

got it. Though, its hard to manage. And when you spawn a widget you need to check if another widget already exists in the place you are spawning it?

this is not a joke

it gets complex really fast

maybe just clear it everytime

remake everything everytime you select an entity etc

[faint pasture]

there's no reason you can't have the EntityInspector ready to go at all times, just state machine it with state being EntityI'mInspecting

for example

[maiden wadi]

It can. But some stuff like dynamic entry box can help there. It caches children so you get the benefit of not recreating them every time, not paying garbage collection tax, and youc an simply reset and then reuse the widget. And it supports most container types like horizontal, vertical, overlay, etc.

[faint pasture]

InspectEntity(Entity)
if(CurrentEntity)
do cleanup / uninspection logic
CurrentEntity = Entity
if(CurrentEntity)
do setup / inspection logic
else
collapse

just inspect nothing to hide inspector widget

its a state machine with CurrentEntity being the state

[kind estuary]

🫡

[frank olive]

Still though when I'm facing north for example and strafing to the side the forward speed is the one that's 150/-150 when it should be the right speedű

[kind estuary]

i didnt know about this

before in an older project i just checked by get parent

and child

and see if stuff exists

it was a mess

🍝 🍝

😵‍💫

oh wait thats c++ only, right?

[kind estuary]

cant find anything inspect / inspector in the Widget

[faint pasture]

i mean make that code

[faint pasture]

Try get capsule right and forward

it should be the actor right and forward but just as a sanity check

[narrow sentinel]

anyone know why a get user widget object would return none when print string its object name??

the widget comp has a valid widget class and is valid

[frank olive]

does the exact same thing

it's like if I switch the right and forward inputs it only plays the strafing animations if it's normal it only does the forward and backward animations

even when I'm going sideways it's refusing to use the strafe animation

no matter which way I turn or walk, no matter the combination by the looks of it it doesn't even try to play the strafing animation

I don't know if there's a way to observe theactual blend space in use, like the preview X but instead it shows the live values on the chart, I doubt that's a thing

The animation only looks right when I'm facing the direciton I'm going in

[gentle urchin]

Pro tip; when printing on tick, ypu can set duration to 0

Avoids spamming the left side screen with noise

[kind estuary]

what are some things that are objectively better in Blueprints that you cant do in C++. id say none xd

[feral path]

Blueprints compile faster than C++

[gentle urchin]

I work way faster in bp

No compile, no re-open editor yadi yadi

[kind estuary]

💯

[gentle urchin]

Prototyping goes incredibly fast in bp when you know your way around it

[kind estuary]

yeah but c++ you can ask chatgpt something real quick, and boom you get a sketch of what to do

thats quite fast

[gentle urchin]

I wouldnt trust it to even compile

But thats me 🤷‍♂️

[kind estuary]

it doesnt, then you just debug it real quick

most of the time, i just notice the issue, and tell it and it corrects it

some things work at the first attempt

this is what makes me think BP might be at disadvantage one day if things keep going this way

godot gdscript is like BP, but since its code it will have an advantage

[gentle urchin]

Usually its hard to provide full context for the ai to create something useful end to end

And if you break it down to mich you gotta query it 100 times to get the working solution (after random() debugging)

[kind estuary]

ah that no. but like a function

it does individual functions very well. or like you explain and write a bit of code already it fixes it

[tight pollen]

if i try Redirect then crash

how can I do it manually?

Crash:
Assertion failed: !IsRooted() [File:D:\build++UE5\Sync\Engine\Source\Runtime\CoreUObject\Public\UObject\UObjectBaseUtility.h] [Line: 265]

[narrow sentinel]

anyone help with why this would return None

I've check and there is a valid widget class on the MFD which is a Widget component

and the widget is derived from User Widget Object as well

and I can see when I run Pie the widget is there in 3d spawn as I would expect

but when I try get object name I get None being returned

[olive yarrow]

Y'all, im using a shared interface here to try and launch an event from one blueprint to another.

This is almost literally how i have it set up in another project and it works but I'm having no luck recreating it in a new project. What'm i missing?

[lunar sleet]

The interface should only be implemented in the receiver. If you implemented it in the sender, remove it, else it won’t work

Interfaces are not meant to be shared, only implemented/inherited

[lofty rapids]

when i shoot a projectile, why wouldn't it bounce off a wall ? i just loaded the third person template in 5.3.2 and am shooting a projectile it's going through the walls

https://streamable.com/rofcgq

[vale narwhal]

hello i'm trying to spawn something on my mouse cursor, i'm using chatgpt to help me since i'm a bp noob , and it tells me to connect left mouse button event to the get hit result under cursor by channel but i can't

[lunar sleet]

Collision settings

Also, velocity can be a factor

[vale narwhal]

error : exec is not compatible with player controller object reference

[lunar sleet]

ChatGPT hallucinates 50% of the UE stuff it gives you

You should learn the basics first

[vale narwhal]

ha shit, i wanted to learn bp with chatgpt

mh ok 🙂

[lunar sleet]

Look up “your first hour in Unreal”

It’s on the Epic portal

Then watch the 2nd pinned link video in this channel in full

Then you’ll be able to actually figure things out

[lofty rapids]

collision is block all dynamic on the projectile

[tight pollen]

someone?

[vale narwhal]

thanks mate

[lunar sleet]

Is the wall world dynamic?

[lofty rapids]

wdym ?

the collision ?

is block all dynamic

like the projectile

[lunar sleet]

No

The object type

Block all dynamic means block all objects that have world dynamic as object type

If your object type is anything else, it’ll ignore it

[lofty rapids]

i tried blockall as well

[lunar sleet]

What velocity on this projectile?

[lofty rapids]

1000 start, 1500 max it seems slow i might want it even faster

[lunar sleet]

Also collision works better when it’s a 2 way street (the wall should block the channel corresponding to whatever object type the projectile is)

[lunar sleet]

That part is probably fine then

[lofty rapids]

i just did block all on both

[lunar sleet]

In addition to this, if your wall has multiple components and the projectile hits those instead, you’ll prly also have issues

Like a collision box on the wall that has a different collision setting

Collision is a tricky beast ngl

It often takes hours to narrow down the issue because there’s many things that can affect it

[autumn pulsar]

Is datatable access performance intensive? Was wanting to use it to store combo attack information and flow

[lunar sleet]

Ideally you don’t want to modify DataTables at runtime

But if you’re only reading data from it, it’s fine

[autumn pulsar]

Well I was going to store a name in the struct to use to reaccess it for the next sequence

Which might be overkill

[lunar sleet]

Yeah structs are a good way to go. Cpp structs tho, bp ones break when edited

[autumn pulsar]

Whack

If I reference something in a data table, that loads the object if the datatable is accessed correct?

[frosty heron]

Any hard reference in data table is wild imo.

[faint pasture]

ram is cheap

filler up

I wonder if that can be an approach

if your asset base is small enough

[frosty heron]

Yeah if small probably don't matter.

But if it's large enough with 2 k textures and dozens of items.

I end up with 1 minute loading time.

[faint pasture]

Space is pretty much all just textures and audio right?

[frosty heron]

And loading all the items I don't need.

Spoke from personal experience.

[faint pasture]

if the "item" is a 200 byte struct then its nothing

[frosty heron]

Yeah probably doesn't contain animation or texture assets.

If it's just primitive types then who cares

[autumn pulsar]

Using it for my core player animation set, so there’s not much reason to not keep it in RAM

[frosty heron]

I'm just soo concious of any hard ref in DT

My approach is only load what I need now

[frosty heron]

Yeah I would just use a data asset though if it's small enough.

[autumn pulsar]

My game will have ass fidelity, so will have a lot of free RAM

[frosty heron]

If you don't need to have a collection of things to view, you probably don't need data table.

[autumn pulsar]

And I didn’t want to have hitching from asset loading something in 16ms

[faint pasture]

Is a combo a "thing" or is it more implicit?

[autumn pulsar]

Implicit?

[frosty heron]

Async load is working fine for me.

[faint pasture]

Is it like a recipe where move -> move -> move is a combo? Or is it more like a web or graph where move can lead to move can branch into this or that

[autumn pulsar]

I was going to have a string of attacks, and then a branch into an attack specific finisher

[frosty heron]

My combo is just an array of structs in DA

Loop through, find matching one, execute ability.

If player change job, just pass different DA

Or I can even have common one for basic attacks

[autumn pulsar]

I wanted a specific sequence

As I wanted more methodical combat

[faint pasture]

so when do you load animations?

or do you async load the concrete character or animbp and that's when it loads its assets

[frosty heron]

I haven't yet. It's hard ref atm still testing phase.

Gotta think about it.

But I've been abusing UE5coro for everything.

I wonder if I can just use co await before playing the montage lol...

[faint pasture]

so how does async loading work? Is it like:

Async load actor class -> its loaded -> can spawn it "instantly"

Say i wanted an AnythingInMyEntireGameSpawner

[frosty heron]

I load them on the fly. Go through the data table and async them one by one.

So my cosmetic U.I gets filled over time.

[faint pasture]

I mean more for like projectile actors or whatever

is a projectile without a mesh flying through the world?

[frosty heron]

Yeah

I got 1 projectile and it's using soft ref

[faint pasture]

or say an enemy spawner

[frosty heron]

It has sphere collisions I just need to spawn the ball

Spawn sfx ( Co await myFireBall)

It spawn instantly though ( kinda )

I honestly should look into asset managers

[faint pasture]

I wonder how that works with things being spawned and destroyed

say im loading an actor class before spawning it

then i destroy it

does the CDO hang around?

[frosty heron]

no idea

[autumn pulsar]

I’m going to suffer so much tech debt

[lofty rapids]

if i simulate physics the projectile drops but it does collide

without it the projectile fly but go through wall

maybe just use physics and apply a force ?

[autumn pulsar]

Probably easiest to implement your own gravity and force

So you have total control over the behavior

[frosty heron]

maybe turn on the box that does sub stepping. That may help

[faint pasture]

wat

show the projectile component layout, collision settings, and movement settings for whatever is doing the movement

[lofty rapids]

collision is blockall

on the projectile and the wall

[frosty heron]

turn on force substepping

[lofty rapids]

i think i will try another way because i need this to bounce off the wall

[lofty rapids]

tried that it still goes through

[frosty heron]

you tried playing with the max simulation time?

[lofty rapids]

i think i should do this where i simulate physics and apply a force

instead of projectile

[frosty heron]

pretty sure projectile movement would handle something like a mesh not going through the wall if it were shoot too fast

by sub stepping

if your projectile move slow enough and still went through the wall, that;'s most likely your collision settings.

[lofty rapids]

so i did the collision settings, try sub stepping

still it just go through

[frosty heron]

i mean

it didn't for me 0o

does your sphere have collision? maybe just add a sphere collision

[lofty rapids]

i tried that as well

[frosty heron]

nothing out of the ordinary on my end

i shoot a sphere with projectile movement

it collide with the wall just fine

[lofty rapids]

🤔

[lofty rapids]

i think i figured it out

[maiden wadi]

It can be. But for sure if you have C++, definitely do bundling anyway. You can literally load it all into memory in the main menu or something if you want, but it gives you the easy option not to do that later.

[lofty rapids]

i got rid of default scene root

[maiden wadi]

Use a SphereCollision as the root too. Cheaper sweeping movement than a more complex mesh.

[lofty rapids]

whenever i try to do a root it seems like the collision messes up

[tight matrix]

Hi everyone, I’m looking for a good tutorial or course on implementing root motion for a locomotion system in animation blueprint. It’s really difficult to find, so any recommendations would be greatly appreciated!

[autumn pulsar]

Are you talking about authoring the animations or actually making your character move?

[tight matrix]

Making character move

[autumn pulsar]

https://dev.epicgames.com/documentation/en-us/unreal-engine/locomotion-in-unreal-engine

There’s some docs on the website

You need to set “root motion from everything” in the animation blueprint if you’re doing standard movement in addition to montages

[tight matrix]

Thank you, I’ll take a look.

[autumn pulsar]

I believe the Lyra game also has some examples

[faint pasture]

The Projectile Movement Component moves and sweeps the root component of the actor it's on.
The component named Default Scene Root is a scene component which all actors get by default, as an actor must have at least one scene component.
You want to have something with collision as the root component of a projectile using projectile movement component. Scenes don't have collision, thats why it's going through stuff.

[nova grotto]

is there an event for getting hit by a sphere trace

[fierce scaffold]

hi guys.
so, i have this topdown spaceship. it can move and rotate across the screen. i have the thruster sprays figured out for the rotation.
but im out of idea for the translation. how to get the correct thruster particle spray fire when the ship move up down left right, when its orientation can be absolutely anything ?
i tried to map out an 8way directional but i dont know what to do with it next.
i have the local ship mapped from 0-7, and a world mapped 0-7. something tells me that a relationship must be done with those two, but i dont know what...

[dawn gazelle]

The sphere trace itself is the event. You communicate to the hit actor/component detected by the trace.

[nova grotto]

thats fair thank you

[broken wadi]

If you are looking for a catch-all event on the actor being hit instead you can use something like this given you have a capsule component for example:

The sphere trace can originate from some other actor but the actor being it might have a component which is listening for hit events.

[nova grotto]

is that hit component node second from the top what im looking for then?

[broken wadi]

Right click on the component then choose add event and pick one

that one in particular is OnComponentHit

but there's also OnComponentBeginOverlap and OnComponentEndOverlap too

But just know that if you have a character inside of a capsule component and you use OnComponentHit it will fire whenever they touch the landscape because that counts as a hit event.

[static fulcrum]

Hi all. Having an issue with using Data Assets which contain Arrays/Maps of custom Structs. When making a change to this struct definition (eg, adding a new variable to the struct), compiling and saving, everything looks good and gets updated properly (eg, the new variable shows up in existing entries on the data asset). But when restarting the editor the entire Array/Map gets reset to 0. Anyone know about this, how to fix? Causing me major grief having to re-fill out these arrays again and again from data loss..

[runic anchor]

I have this function in my ui widget blueprint, which was supposed to show the next objective and hide the previous one when the function is called. The function successfully displays the next objective but can't hide the previous one. I've tried to reference the objective directly, reverse the logic, and even have the function hide the text rather than show the next objective, but still, nothing works. The weird thing is that I used a print statement to check if the text is being set to hidden, and it is. I would appreciate any help if possible. I've spent a whole hour trying to fix this.

https://blueprintue.com/blueprint/_69zs_x5/

https://blueprintue.com/blueprint/4lfke5ok/

[edgy forum]

How to edit the variable of a character blueprint from inside the anim bp it is using ?
I want to turn off 'isPlaying' Boolean in charBP once a state machine plays the animation 3 times.

I tried to cast from inside the anim bp using 'get owning actor ' but it shows non thread safe error

[olive yarrow]

it looks like there's no simple nor one way to make a pannable image in a widget (or both an X and Y scroll bar).. anybody been in the same boat and found a straight forward work around?

[proud salmon]

I setup an image pan for my map in OWSC. It works basically 1:1 with Fortnite

[oblique terrace]

Hi! I'm working on a game where I want Santa Claus to always be visible, even when objects like walls or platforms block the player's view. The goal is to achieve an effect where Santa is displayed in his original mesh color (not an outline) through all obstructing objects, using Post-Processing or Material Tricks in Unreal Engine.

How can I show the original colors and textures of Santa's mesh through walls and other occluding objects using Unreal Engine?

I'm Giving The Screenshots of My Project

[olive yarrow]

I really like the dude holding the giant mace, but $249 may be outta my range

[proud salmon]

Put the image onto a canvas panel and then use Set Render Transform based on the mouse position after the mouse down event.

[olive yarrow]

You're an amazing soul, i'll try plugging that in after a good refreshing sleep

[proud salmon]

Should end up looking like this

(Minus the zoom, that's a different function on the mouse wheel)

[olive yarrow]

ah heck ima try it now.

[proud salmon]

https://tenor.com/view/mando-way-mandalorian-star-wars-this-is-the-way-gif-18467372

Who needs sleep when you got UE? 😄

[olive yarrow]

I mean honestly, what can my job be expecting of me at this point? i put in my notice a while ago

[proud salmon]

😂

[olive yarrow]

is this mouse move coming from the widget?

tryna find the on mouse move function

[proud salmon]

Ya its an overridden function on the widget

[copper chasm]

Can I change the input mapping context on beginmouseover or something? Like if left click on the navmesh is normally “move to location”, can I have a mouse over event for a character change the mapping context to “IMC_CharacterInteractions” or something so that when the player left clicks a character, it swaps to that IMC and fires its left click action?

[surreal peak]

Yeah, but you need to code that somewhat yourself.

Trace for Actors below the MouseCursor and if you hit the Character, add the IMC with a higher Priority.

Up to you how dynamic you want that to be. Could be interface driven or stay hardcoded to the character.

[gentle urchin]

Would it be viable to implement a context without something like sprint purely without an actual input key but still the same input event ? Thus overriding the original context input?

[maiden wadi]

Like virtual input for sprint?

[gentle urchin]

Ye

[maiden wadi]

For AI or something else?

[gentle urchin]

To block the regular sprint.. either

Player id say

Never considered ai using input mapping contexts 😆

[maiden wadi]

Hard to say. I put most of that kind of consideration on GameplayAbilities and mostly leave inputs alone.

[crude sedge]

how can I get the formated text to be the return value?

[autumn pulsar]

you need to make the return value of the function a string

[crude sedge]

Yeah I figured it out

thanks

[ruby badge]

I'm trying to use the Text3d actor and I want to be able to update the text but it doesn't work like it does for the 2dTextRender. I does anyone know how to do this?

[crude sedge]

what does cast want for a Widget Blueprint?

for the object

[gentle urchin]

So opening say UI wouød grant some movement impaired tag ?

[maiden wadi]

Depends on the UI. For that I mostly just use the input modes. If I don't want movement it goes to menu.

[maiden wadi]

A pointer to the widget.

[crude sedge]

I dont see anything that says that it points to the widget

[maiden wadi]

Read cast as "Treat as". If you have an Actor level pointer(like from a line trace), and you want to know if it is a character, you can cast the actor level pointer to a character. If the Actor level pointer is not a character, then it will fail the cast.

You're trying to treat that actor level pointer as a character in this example.

In a widget's case, you'd have a Widget, or UserWidget level pointer usually that you'd try to cast.

Explicitly speaking, Casting does not "Get" anything. It's simply an access level conversion.

[main flume]

I am trying to convert a landscape spline to a blueprint spline. The red tangent is correct, but the green one is incorrect. However, when adding the world position, it is correct, although the tangent remains wrong. Do you guys have any ideas on how to fix this?

[uneven warren]

Hi Everyone

if i spawn a Niagara system attached to a specific bone in my character mesh and set location type to snap to target, does this location input acts as an offset from given bone or is it the world location?

thanks in advance

[frosty heron]

depending on the location type you selected.
Atm it's set to Snap to Target, Keep World Scale

@uneven warren looking at the code I don't think the location is used at all if you use snap to target.

you can try add a little offset see if it does something

[uneven warren]

i see so spawn it then add the offset
thank you ❤️

[frosty heron]

@uneven warren sorry I was wrong

the location will be an offset from the target location

just tested

[pulsar axle]

aye anyone willing to join VC to help with a blueprint of mine? it's not complicated but I've struggled to find a tutorial that can explain this part well

[gentle urchin]

You're usually better off just asking in text

commiting to VC without knowing anything about what it's about is a rather big ask 😛

[frosty heron]

who knows what's in store when we don't know what we signed up for.

[gentle urchin]

I wonder how the auto-cleanup plugin would handle this

||/* FORCE DELETE EVERYTHING */||

[frosty heron]

Flamethrower

[maiden wadi]

~Authaer has joined voice~
"OOOOOHHHHH THERE ONCE WAS A HERO NAMED RAGNAR THE RE---"
~Authaer has been banned from voice~

[pulsar axle]

my issue is really basic, I just need a collision box to tell me if a component is overlapping it, then grab that thing and put it in an array for later use.

its such a small but specific issue nobody has made videos about it online.

[maiden wadi]

For use with what? Cause it's already in the overlapping array.

Like what is the general endgoal with the implementation? That might help some.

[pulsar axle]

It's really hard to put into words, which is why I keep trying to use VC to show what I am trying to do.

[frosty heron]

describing the issue is the 1st step to get help, 2nd is showing your code or your attempt.

[pulsar axle]

the code I have to show is rambled nonsense in this section because no tutorials have covered it and I am just placing random shit down and hoping it works, trying to get blueprints to communicate to each other is painful.

[frosty heron]

you might want to watch blueprint communication video by epic.

bp to bp coms may be hard to be understood at the start.

once it click, it's easy though..

[maiden wadi]

That's why I asked what the end goal was rather than the specific task. Knowing the final intention tends to help follow specific implementations easier.

[frosty heron]

It still help to show your code, maybe we can draw doodle on what you have. But if the issue is the fundementals like not understanding reference, then you probably should read articles on what you lack.

[pulsar axle]

I just wanna put items in an array so I can get their location later.

[maiden wadi]

So make an array and put them in it.

[pulsar axle]

it's not that simple

[maiden wadi]

It is, cause that's your only task. You haven't outlined why or any other constraints.

[pulsar axle]

I need to get what a collision box is overlapping, look through that and find the specific child components needed, add them to a array.

all of this is taking place across three separate blueprints.

you can see why its infinitely easier to just show someone this.

frick this I'm gonna record a video

[maiden wadi]

What are the specific child components? What separates them from other components?

[pulsar axle]

video

[frosty heron]

don't ask chat gpt

especially for blueprint

[pulsar axle]

You see why it was so hard to explain? xD

[frosty heron]

not really

how many instance of dungeon generator are in the world?

[pulsar axle]

Just one

[frosty heron]

you can use get actor of class to grab the instance then

[pulsar axle]

So, now that you know it's not really difficult, would you mind getting in a call to help explain it to me? pretty please?

[frosty heron]

No, I only go into calls if I get paid

no disrespect

Turn your Add Exits Within Render Distance collision into a function

add an input parameter

the object can be your exit list

Then in any other class where you need to add to the array.
Get Actor Of Class (Dungeon generator) -> Call the function, passing the instance to the function input.

[pulsar axle]

thanks for the assistance, but this texting is no help to me I'm sorry.
have a good day

[frosty heron]

ok, good luck trying to find someone to get into video call with you.

and if you are still stuck, the answer is above.

[pulsar axle]

If I could wrap my head around texting like this, I'd be writing code instead, but I can not unfortunately.

[frosty heron]

https://www.youtube.com/watch?v=EM_HYqQdToE&ab_channel=UnrealEngine
This will help you understand bp to bp coms.

[tropic peak]

I'm missing something stupid.

I have a blueprint in my level called TimeManager

I would like to debug its stuff using keys

[frosty heron]

show what you have

[tropic peak]

I added caps lock to my IMC, and put a key caps lock node in my time manager just to check if it's working

[frosty heron]

print screen the blueprint uncropped

[frosty heron]

uncropped

[tropic peak]

the key is recognised if I put it in other blueprints

but not with this one

[frosty heron]

this is the legacy settings anyway , nothing to do with enhanced input

[tropic peak]

oh that's it

[frosty heron]

that's why I asked for uncropped picture 😔

[frosty heron]

no, that's got nothing to do with your input action.

[tropic peak]

I mean there's not much to show really

[frosty heron]

I need to see the base class

[tropic peak]

what base class?

[frosty heron]

just show

the

blueprint

uncropped

missing info

you are not the first person this week with input problem and not showing the whole blueprint

[tropic peak]

okay but there's literally nothing to show, the rest of the blueprint is totally unrelated to this

[frosty heron]

people don't know what they don't know

[tropic peak]

I want to print out a message when I press a key, that's all

[frosty heron]

yeah and I can tell you if something is wrong

if you just show the blueprint

but if you are fighting it

that's gonna make it harder

[frosty heron]

still cropped

i can't see the base class

[gentle urchin]

still excluded the class

top right corner

the class this is within is relevant

[tropic peak]

actor

[frosty heron]

ok that's why

[gentle urchin]

or the base class rather. Ok

[frosty heron]

thank you but please just show whole screen shoot when asked next time

dont make us guess.

Inputs are disabled by default on Actor

If you are just doing it for test.

Begin Play -> Enable Inpuit, plug your controller

[tropic peak]

ok that's gonna be it, I missed the enable input I had in my save class, sorry and thanks. coming back to UE after a small break, my mind is not quite there yet

[frosty heron]

you shouldn't be consuming input from places other than the actors you controlled.

if for testing, then who cares but for gameplay, that will be a bad design.

you don't want a door blueprint to handle the E input for example

[tropic peak]

of course, it's just to trigger widgets as I don't have the rest of the system quite ready yet

it's not going to stay

[dark drum]

I wouldn't say shouldn't but definitely not recommended. Requires more effort to manage what does and doesn't have inputs enabled that way. For simpler games it probably wouldn't be a problem. Granted it would probably cause some issues in MP though.

[frosty heron]

imo, Input component, controller, pawn and UI

UI.I for U.I
Input component if need to accustomed to different game modes

controller / pawn, well if there is vehicle or not

other actors is kinda questionable to me, if game is small enough maybe just drop it in controller or pawn? a custom actor will be hard to track and debug.

[maiden wadi]

It bothers the fuck out of me to no end that I have to subclass NavLinkProxy in C++ to make a blueprintcallable function just to set the smart link locations.

[gentle urchin]

fun times!

[dark drum]

Yea, NavLinks could do with some TLC to expose more stuff to BP.

[maiden wadi]

More fun. If you tell an AI to go to a location past a link... They'll go to the first part of it. Run the smart event. Then proceed to fly through an area they have no nav in to the second link, and it doesn't run the C++ code for finished until the AI reachest all of the way to their end goal long after they've stopped using the link.

BUT, if you change the move order while they're in the middle of the link, it'll correctly end it at the second part of the link.

Like wtf is this?

[dark drum]

I feel you're pain. I had some wierd issues using them to trigger open/close animations on doors so NPC's can pass through them. It's crazy to think you can't just enable/disable them (smart links) at runtime via BP.

[maiden wadi]

That you can do. At least in 5.4

That's literally all you can do in BP though.

Literally.

SetSmartLinkData is mine from my own subclass.

[dark drum]

Ahh, thats good to know. I think the last time I used them was in 5.1.

They have so much potential but seem very limited from BP which is a shame.

[maiden wadi]

Nah. You have to view it from Epic's POV. They work perfectly fine on a STATIC map, where shit is hand placed in simple deathmatch maps. What else would you possibly need AI for?

[dark drum]

It's a feature that forces you to reign in your ideas. 😜

[maiden wadi]

It's just a weird thing. Like normally I can convince myself that it's fine cause you'd do it in C++ for performance anyhow. But this is like.. level scripter level stuff here for generating even runtime level design stuff.

[scarlet ledge]

*sorry wront channel

[dark drum]

I am tempted to have another crack at getting NPC's to use doors with smart links being togglable. I got something working previously but I wasn't happy with it. I certainly understand why most games just have doors you walk into to open. lol.

[little prism]

Hi, very stupid and basic question but... I have a base object (sub class of Object) and I can't find a Construct event for it in blueprints... What's the best way to initiate data upon creation?

[dark drum]

Add a custom event/function that you call as soon as you create it. (assuming you're BP only)

[little prism]

right... I thought it would have a standard Construct like any C++ class...

[maiden wadi]

Yeah. There is no such thing in Objects. Major systems like Widgets, Actors, or Components, all have their own way of calling an initialize, function after creation. If you're making your own system, you need to do that yourself.

Even in C++, they don't use constructors for that with like Actors and Widgets.

[little prism]

I get that there is a overhead from Engine itself for Cons and Dest but that's pretty basic functionality that I thought devs would have implemented into blueprints.
Nevermind, I'll use @dark drum advice 😉

[frosty heron]

@maiden wadi are you fammiliar with GAS for multiplayer? 🥹
I'm trying to figure out where I can play my cue on client and play the same cue on the server.

[maiden wadi]

Implemented how? Without C++ and a custom constructor, the object will have no ability to set data before it's initialized. So you'd have an init function that'd run before it has any data set. You wouldn't even have expose on spawn stuff set up yet because that is ran after the fact from blueprint generated nodes you don't actually see in the editor.

So effectively you'd have a confusing init function that simply runs right after creation that'll confuse people when they make things expose on spawn and it's not set for their objects. This including for things like actors and components and the like since they would likely inherit this functionality.

[maiden wadi]

Cue for what? What is the implementation for it?

Generally speaking, State based cues are handled from putting them in respective GEs. Multicast cues are usually just broadcast from the server through the ability.

[frosty heron]

Hit react :3

i want it predicted on client

[violet bison]

how do I read a varaible in a client's own game instance from controller when connected to a server?
get game instance only returned the server's

or should I have used run on owning