blueprint

[faint pasture]

just make them actors

[wide beacon]

ah you see thast where its worked out for me, ive managed to make it so i can swap the mesh name and description of the object in the editor.

[north prawn]

Hello all, I am very new to UE5 and Blueprints, currently trying to remake my Godot project with it.
User-made content is an important aspect of my game, and I need to create a set of folders in the player's local files, for them to place their content. This was simple in Godot with DirAccess.make_dir_absolute("<path>"). However, I can't seem to find any Blueprint nodes that can create new folders. I can check if a path exists, and there is Make Directory Path, but it outputs a "Directory Path" as opposed to creating that path, and I do not know what I'm supposed to do with that Directory Path output.

[high iris]

In blueprints, is there such as thing as a node that I can ask: "hey, is this object of any of these n types, and if so, can you give me an exec pin for each one of them + none"? Almost like a bulk cast attempt.

[frosty heron]

But why? This sound like a code smell.

You do normally just have the function in the base class.

And if the objects have to derived from different class then this is where interface comes in but ask your self first if the objects can't derive from the same base class.

Nested casting is pretty messy and indication of bad design

[high iris]

It's very much in the temporary workaround territory, you make totally fair points there.

[wise ravine]

Question: Is there any difference to putting movement login inside of player controller instead of player character?

[maiden wadi]

So you have a Character. And you have a Car. And you have a Plane. You can possess and control all three.

You put the logic in the PlayerController. The PlayerController needs to know about the character's movement controls, the car's movement controls, and the plane's movement controls. These can rebind and are differently named, so you're gonna have a different set of controls for all three. And you're gonna need the controller to know about all three, to be able to send the controls to the character, car, and plane.

Or you can just put the controls in the car, character, or plane.

[dawn gazelle]

There is a plugin you can enable called "Blueprint File Utils" which gives you a "Make Directory" node.

[surreal lantern]

how do i enable the node that represent the increment assignment " var a += 5 " ?

[frosty heron]

Just set the variable

A = A + 5 in bp

The increment node will require a ref

[north prawn]

Thank you! That's exactly what I needed, and it works!

[surreal lantern]

U mean , "set A" node receiving as input the sum of "get A" node with flat value 5

*?

[frosty heron]

if you really want the increment node, you can make your own macro\

just double click the macro and see how its done

[surreal lantern]

Oh, so was probably this, i saw an node with the symbol '+=' in the unreal fellowship series

It was probably a macro

[frosty heron]

+= is operator in c++

a = a + 5
the shorthand would be
a += 5

they do the same thing

[surreal lantern]

Actally, it didnt have the macro labol

I know, i saw a video on unreal fellowship

[frosty heron]

maybe you can post the picture here

[surreal lantern]

Where yhe host uses a

[frosty heron]

gtg maybe someone else can take a look

[surreal lantern]

Sure, im not on the pc, but tomorrow i will take a print of it

[rigid bay]

Hi, I'm having an issue with importing a model with animations. When I import the model, it gets scaled up, and all the animations turn the model into an eldritch horror. I am remaking my project in 5.5, after wanting to restart to better organize what I was doing, and I didn't have this issue in 5.4, so I don't know why this is happening.

Not sure if this is the right channel for this question, but I don't see another to put it in.

I managed to figure it out somehow

[odd widget]

is there any chat to VC in regards to this, not particualrly to help, other than the occasional rubber duckying, just honestly find it gets a bit boring given im out of schedule with most of my teams and even in schedule they understandabvly would rather spend it with their own customized background noise

[normal raft]

any one know which collision cylinder setting causes the glitchy walking?

hm nm i think i got it .. set the size to 75 and diameter to 21.5 and also set it so its a spectator

[rugged junco]

so here's a problem i got. i want my player character to not do a spell animation and attack in the air, but the gameplay tags don't seem to be working with it comes to indicating when the player is on the ground or in the air. its either it will work both on ground and air or neither. any suggestions on what i should do?

[frosty heron]

How would the tag magically do the check if the character is on air?

Can you go through the logic?

You are saying if character has this tag then do this else do that.

But what drives if the character has the tag or not? Where is the missing bits.

[rugged junco]

the ground and air tags are mapped to the jump input and toggle in between each other whenever the character is in the air or on the ground.

i think maybe it has something to do with the ability not having the reference to the player character directly

so maybe i could add that

[gentle urchin]

This^ feels wrong

[frosty heron]

@rugged junco if you need to check if the character is in air, there is already variable for that in the cmc that is evaluated every frame.

BIsInAir or something. If not there look at third person template.

[gentle urchin]

You're also not checking if you can jump in the first place, meaning youd pass tags based on an event that may not happen

And being in air is a state that can happen without jumping

As Cold says, CMC does this, and has a movementmodeChanged delegate one could use

[rugged junco]

hmm

bingo

weird though, because i tried is falling before, and it didn't seemed to work, but now it does

unreal can be weird sometimes

[charred dew]

I am trying to create an Inventory System using Blueprints and C++ and now I'm at the point where I'm adding the Items to a widget (WB_Inventory). I'm trying to add my variables to the other Widget (WB_Items) which will go into my vertical list in My Inventory Widget I don't know how to get my variables to be shown on screen I've tried binding but It doesn't work.

[frosty heron]

Why do you get player character 0 though

You should make the ability generic (works with anyone that granted the ability).

Instead hard coding player character

Perhaps you don't need to grant the ability to anyone else but making it generic takes a few second.

Get avatar actor info-> get component by class -> cmc -> is falling.

[dim halo]

im trying to delete obstacles from a course. I am adding obstacles to a a struct that houses an array like so. Pls ignore the adding to the first array and then carrying it over, im just doing that bc the blocks are of a variaty of actor classes so i couldnt just use make array. And then im deleting them and remvoing the array like this

does anyone why it wouldnt be deleting those actors

[marble tusk]

The first thing which stands out to me is this. That Remove Index won't do anything since the actor this is on gets destroyed before it can be called. Although, if the Floor And Obstacles variable is on this actor, then it would also get destroyed with the actor anyway technically removing everything since it wouldn't exist anymore

[dim halo]

its just the array. Originally it was the array floor and obstacles hence the name but it no longer is

i tried removing that and it made no difference tho

i tried using an array of actors and another array of ints to keep track of how many obstacles there were for each floor but that wasnt seeming to wrok either

maybe its because of the change you just listed tho

[marble tusk]

I think I'm missing part of this. When this ADD is called it's adding another index to the struct array which contains it's own version of the Obstacles array. Then later you're only getting the first index from the struct array, so if that struct array was added to more than once, then the first index likely doesn't include all the obstacles

[dim halo]

the obstacles come in sets, i.e each floor has a set of obstacles, after clearing a floor i want to delete that floor and all the assosiated obstacles, so im only ever gonna want to delete the obstacles in habiting the first index I think. I could be misinterpreting how structs and arrays work

the array is only ever added to once when creating the obstacles for a floor. Everytime a floor is added a new set of obstacles is added to the struct but id only want to delete that one once that floor has been cleared. There are ten floors are at a time so the struct should hypothetically have ten imdexs at a time

but it doesnt

unfortunately my breakpoints havent bee working

[dim halo]

i fixed it

dumbest error ever

that i just never noticed

[frosty heron]

going step by step helps

[dim halo]

yeah

[frosty heron]

write down the expected output, work your way up. Test the values

[dim halo]

the random aspect of it was making it difficult to figure out what the unexpected output was and when it was being caused

i finally just simulated it like a hundred times and noticed a trend

[frosty heron]

I'm debugging everyday 🤣

it isn't often that things just work for me

[dim halo]

same here

[gentle urchin]

Life is debug, what else

I need to make a pathfinding visualizer today

So i can visualize the steps

[lost hemlock]

What am I doing wrong with those loops?

[gentle urchin]

Top loop aint comnected

[marble tusk]

both aren't

[gentle urchin]

So you never loop through the keys

[lost hemlock]

but if I connect it via the loop body it will not do the job properly, it will end the function really fast, it will half ass my function, it will just look at the first thing and then go tell to my branch (found or not found) but will not look thoroughly through everything

I want to make sure that they check through everything

[muted socket]

why isn't my line trace starting from the center of the screen?

[lost hemlock]

and then, and ONLY then go on.

[marble tusk]

You'll likely need a local boolean variable to store true if it can craft, then after both loops have completed you return that boolean through the return node

[gentle urchin]

Return should only be called in two situations :

• Both loops are completed, and thus not enough items were found
• early out if all items were found during looping

[marble tusk]

Oh yeah, could do that. Just connect both loops instead of completed, then move the unchecked return node to the completed of the first loop

That way it'll only call the can't craft return node if it's looped through everything and didn't find it, and if it does find one it exits early with the checked can craft node

[lost hemlock]

yeah but before that my loop wants to go on to something else via the loop body execution, and If I force it to return back to it via the first "Exec" pin then I will cause an infinite loop that will go on forever and ultimately crush my Unreal Engine Editor

[lost hemlock]

https://tenor.com/view/i-already-did-that-unmesh-dinda-piximperfect-finished-it-been-there-done-that-gif-19364052

[gentle urchin]

You're doing it wrong then

[marble tusk]

Or those arrays are stupidly huge

[gentle urchin]

Meeh

They're not

But could be a case, yeah

[lost hemlock]

but it needs to run through both loops, that will mean it will only run through the first and then call it a day.

[lost hemlock]

Content is = 30 slots

[marble tusk]

This is what I mean

[gentle urchin]

Yepp , outer loop is the definition of checking everything and still not completing it

[lost hemlock]

outer loop you mean second loop?

[gentle urchin]

No, first

First is always outer

If youd see this in cpp itd make more sense

/*Outermost Loop*/
for (auto Key : Keys)
{  
    /* Inner Loop */
    for (auto Slot : Inventory) 
     {
      // check here
     }
}```

For each key you want to chevk if the inventory contains it

Personally

[lost hemlock]

oh, outer is a preposition word describing external spatial positioning, thats why i was confused here

[gentle urchin]

I would suggest doing it the other way around

So you only ever loop the inventory once

And TMap has a O(1) lookup cost

The way you're doing it you worst case end up looping the inventory once for every item in the recipe

[lost hemlock]

I could make a new array or variable storing all the things and quantity of the items found, like a temporary variable, would that be performance efficient? Considering that I have 30 slots on my inventory, and my crafting can have around 20 different types of items with varying quantities each. (So far I've only added around 6-7 craftable items available in the game)

[gentle urchin]

Or just swapping the order

[rugged junco]

do you know how you can make a homing shot aim towards an actor only when the target lock is activated? so far, i was able to make it act like a homing attack, but i'll have to find out how to either toggle the homing ability or make it so i can tag enemies when i target them.

[lost hemlock]

I followed it, it looks almost okay.

[lost hemlock]

I don't understand C++ terms. I haven't **unlocked **this **knowledge **yet.

what's TMap? What's 0(1) lookup cost?

[gentle urchin]

Just know its fast

TMap = Map

Your input parameter is of that type

So thats the recipe i assume

Also btw

I forgot a third returnn

If you dont find an item in the inventory, you can instantly return fast on Completed for the inner loop

No need to check for the rest since requirement cannot be met

[muted socket]

I'm getting closer, now the trace starts correctly from the center of the screen but ends a bit too low and to the left while it should go straight out from the viewport. Ideas?

[lost hemlock]

im already doing that or you mean i should try to do that for speed?

[marble tusk]

Remove this link. When it's there it means it'll exit early no matter what

[gentle urchin]

Let me slap up an example

[lost hemlock]

you mean to tell me i should use maps? im already using that for my crafting

but not for my inventory array

crafting is map/dictionary

[gentle urchin]

no im not saying that at all

inventory is fine as an array

recipe makes sense as a map

You want your outerloop to be inventory

and innerloop to be the tmap

or rather

its not even a loop

ill show you in a minute

the only loop you need is the inventory loop

worst case scenario, you loop through the entire inventory, and return false

best case, you end it before that

[lost hemlock]

I find no bugs with that, though I only test it on 2 items with simple recipes so far.

[gentle urchin]

Loop through inventory -> Check if the current inventory slot is in the recipe -> remove the slot amount -> if new sum is less than or equal to 0, remove the item from the recipe (we've found enough of that item 🙂 ) , else, add (which replaces existing) new amount to the recipe list.

If recipe list turns out empty after removing an Entry, we can return with a success , as all items were found

If we complete the loop, it means we never found all items, which in turn means we failed.

Worst case complexity is O(n), meaning we'd loop the inventory one full loop.

[tawdry walrus]

Hi, I want to store pistol ammo without resting when switching weapons. I have an idea to store it in data assets. Is it okay to store them?

[frosty heron]

no, data assets are for read purposes

while it's not impossible to write to them, it make no sense

The ammunition should belong to your Weapon class

where each instance track their own ammo

The usses of data assets in these casses is probably to just initialize default data for the weapon instance

[tawdry walrus]

Thx

[frosty heron]

the end should be
EndLocation = WorldPosition + (Direction * distance)

not good at math, but maybe you can try that

If you skip the addition, it will kind of just start from the world origin. You gotta offset it to start from the StartLocation

@muted socket

[gritty aurora]

Hey everyone! 👋

I’m running into an issue with my graphics settings in my game, and I could really use some advice.

Here’s the problem: When switching between graphics settings (e.g., Low, Medium, High, Ultra), everything works fine until I select Ultra. Once Ultra is selected, I can’t switch back to any other setting. I’m using a Blueprint setup with a clamped integer variable (GraphicsEX) that ranges from 0 to 5 for the different settings. I’ve also ensured that ApplySettings is called, but it still locks when selecting Ultra.

Does anyone know what might be causing this or have ideas on how to fix it? I’ve attached a screenshot of the logic for reference. Any help would be awesome! 😊

Thanks in advance! 🙏

[wide beacon]

this code stops the players movement, and plays a message on screen, however it doesnt go back to walking after, i know the walking mode says none at the end. ive already tried changing that.

[surreal sonnet]

you have +1 on both buttons

[gritty aurora]

What should they be because I tried making it 1+ and -1 but it still doesn't allow me to go back from ultra to low

[surreal sonnet]

try on clicked graphic- to either change value to -1 or use substract node

you can also print the value you are getting after button press to see what it does

[narrow sentinel]

So if I do this get a ref to an array element and if I then use Set Memebers on the promoted variable will that alter the array element in the array or would I need to remove and re-add the element with the new values ?

[gentle urchin]

It will alter the array element yes

[native canopy]

Why when i changed the resize value, the logic looping by the resize value https://blueprintue.com/blueprint/ib3jxot5/

[frosty heron]

screen shoot your bp, that website can't represents something 1 : 1

[narrow sentinel]

awsome thank you, normally I do this stuff in Cpp thats all so use to how it looks at works in there

So like that

the temp is the cache element from the array by ref and the new item data is the altered version of it with the changes

[native canopy]

The Array index should be 0, but when i print the amount is 3

[frosty heron]

why should it be 0? You resize it to 3.

So you have 0 , 1 , 2

[native canopy]

i mean that

0,1,2

[frosty heron]

ok, so what's the issue?

an array with 3 elements would be [0, 1, 2]

[native canopy]

the logic looping by the array resize value

[native canopy]

i know but the issue not that

[frosty heron]

maybe it's language barrier

[native canopy]

read the comment

[frosty heron]

masalahnya apa terus?

[native canopy]

bentar

[native canopy]

The "Event_Pickup_Gun" Looping by the resize value

but for the "PickupItem" not looping even the resize change

[frosty heron]

Print the length of the array

[native canopy]

1."Items Items"
2."Items Gun"

the len is normal

[frosty heron]

so you are saying the loop doesn't loop 12 times?

if so, did you print the length just before the loop?

[surreal lantern]

this node really exist ?

[native canopy]

wait

[native canopy]

i try to make a description from the issue

[frosty heron]

source?

[surreal lantern]

some ia that i dont remember the name

[frosty heron]

ia? or AI?

[surreal lantern]

i want to do the addition assignment but with a single node

*ai

[frosty heron]

then that explains it

[surreal lantern]

'+='

[frosty heron]

LLM spit something that doesn't exist quiet often than not

[frosty heron]

your only option in bp is probably a macro

though what's wrong with just a = a + 5

[surreal lantern]

i saw a video of unreal fellowship, a node with this symbol '+=' that did the addition assignment

it didnt have the macro symbol in the node

is possible to change the symbol of the macro nodes ?

[remote meteor]

perhaps its custom node

[frosty heron]

never seen it but I am gonna guess what ever you seeing is a macro anyway

[remote meteor]

can just make a macro really

[native canopy]

"PickupItem" not looping even the resize value change (this is what I want), but The "Event_Pickup_Gun" Looping when the resize value change (I don't want this),
Example :

items_items resize = 12
Run "PickupItem" only playing 1 time even the value 12 (this is what I want)

items_Gun = 3
Run "Event_Pickup_Gun" playing 3 times like the value (I don't want this)

[frosty heron]

function for that doesn't make sense as you probably want to re-use it in all your bps

[frosty heron]

do a print string here of your index

before the is valid check

The loops just go over every element in the array

nothing can be suggested without knowing the context

[native canopy]

1.items_items
2.itmes-Gun

[frosty heron]

yup, so everything in order

the loops just iterate every element in the array

What's the logic you are executing for every iteration?

[native canopy]

but if i pritn after valid
1.items_items
2.items_Gun

[native canopy]

to make Event_Pickup_Gun looping one time

[frosty heron]

what's the condition? You just want to break away at the first loop (index 0)?

then you wouldn't need to use loop at all and just get index 0, but I have a feeling you will end up with more bugs

[native canopy]

make a sense, but the variable need to communicate with another blueprint

[frosty heron]

that's kinda irrelevant

[native canopy]

i can say same logic with different result

[native canopy]

look this,

[surreal lantern]

macro nodes can have execution pin ?

[frosty heron]

What you probably want is loop over element that have valid item

but everything is a guessing game as I don't know how you tackle your inventory system

you should have a function that checks if an element is a valid item or not.
Checking if the name is empty can be one of the condition.

[surreal lantern]

anyone have any ideia on how do i enable that epic library

so i can use/enable this

[native canopy]

the first image, I ran the logic and showing 3 result when i picked a gun (1 gun), the secodn image , i ran the logic and showing 1 result when i picked 1 item.(the purpose is if i picked one the array only fill 1)

[frosty heron]

it's a library, you probably have to download it

[frosty heron]

then don't do resize?

or like I just suggested, you can just loop over valid items

If the Name is Empty, simply do nothing

[native canopy]

Yes, the resize only for the item slot

[frosty heron]

if you want to loop only over valid item, then do just that.
Check if the element has a valid Item Name, if false, do nothing

[native canopy]

The loop only for fill the slot, not for looping the logic

[frosty heron]

For every Item in Items
Index 0 - > Does it have valid Item Name? -> If true, do something, else do nothing
Index 1 -> Does it have valid Item Name? -> If true, do something, else do nothing
Index 2 -> Does it have valid Item Name? -> If true, do something, else do nothing
......
And so on

[native canopy]

Like that, but i don't know why when i picked 1 gun the logic do 3 Times

[frosty heron]

because For Each loop Iterates every element in the array

that said you can chose to not execute any code on Element without valid item, by doing the check

[native canopy]

why "PickupItem" only looping one time even the resize length is 12

not like "Event_Pickup_Gun" looping by the resize length

[frosty heron]

Show me a screen shot on how you print PickUpItem

[native canopy]

i need valid result

[frosty heron]

It's actually looping 3 times

but it doesn't go past the valid check on some indexes

it didn't for a fact only loop one time

[native canopy]

what wrong with "Event_Pickup_Gun"

there are same logics

[frosty heron]

Use break point and go step by step

[remote meteor]

-# might as well practice to make a standalone inventory system at this point

[frosty heron]

don't throw nodes without understanding what they do including the IsValid check

my final suggestion is, if you want to iterate over valid items in ItemGuns, you can check if the element has a valid ItemName

other than that, there's nothing else I can add.

[native canopy]

for each loop with break?

[frosty heron]

no, it's a debugging technique

right click a node and add breakpoint, that will stop the game execution right at the node.
You can then go over the next nodes step by step.

[native canopy]

i saw "PickupItem" looping 12 times, "Event_Pickup_Gun" 3 times

i just confused why the varibles fill 3 objects

[frosty heron]

you resize the array to 3 elements 🤷‍♂️

[native canopy]

PickupItem fill 1 object even the resize 12

i'll use another technique

this is weird

[frosty heron]

incorrect, there are 12 items in it

the print strings already proof it

[native canopy]

why this is fill 1

[frosty heron]

probably cropped but ItemsItems have 12 elements

you are just changing the first index

the array still holds 12 elements

[native canopy]

i created the code but i confused with my code, really weird

[lofty rapids]

comments can help if you forget your code, next time make some comments

but just try to follow the execution to figure out what is going on

unfortunately your lines are a little crossed up and hard to really see what is going on quickly

[lost hemlock]

But this will say " craftable " when you can afford only just one of the items in the ingredients list.

E.g. here:

Note: My project wasn't saved properly earlier, because someone was experimenting with some broken devices and my house's electricity went out and so progress wasn't saved, so I had to redo everything again, there could be some bugs right now. Like for example the way the craft button is set to disabled right now.

[haughty ember]

Is there a way to edit specific keys of specific bone inside animation sequence? (using editor utility blueprint)

[lost hemlock]

Also I dont understand why it says "Craft" but the button is shown as disabled ???

It's still pressable though, Im pressing it and the color changes but the color of the text looks kinda anemic or smth.

[lost hemlock]

Anyway that's irrelevant, I think the problem still remains here.

[marble tusk]

Does it need to be true when everything from the ingredients is in the content array?

[gritty aurora]

So I went back and watched the Youtube video , and I found 1 mistake it should be subtract and add , but still when I go past ultra it goes away and doesnt loop back to low

[frosty heron]

if you want it to loop then make it so

If Index > Max
Index = 0

If Index < 0
Index = Max

[surreal sonnet]

as coldsummer says, i made similar thing for my inventory hotbar, wanted to use wrap node but it did not work as intended for some reason so made custom function for that

i made mine like this in function library so i can reuse it

[lost hemlock]

I mean my logic right now would be equivalent to ... You cooking food, making the sauce but skip the pasta, veggies, and sides, and someone says, oh wow "This dish is perfect!"

[gentle urchin]

Index % length

[lost hemlock]

Or, when you go to the grocery store for shopping, you're holding a 15-item list of essential thigns you agreed with your family you're gonna buy... you buy only chips, and the family says, "Great job stocking up!"

[muted socket]

any idea why this works when I use the "Play" pin but doesn't work when I use "Play from start"?
Any quirk I should be aware of?

[haughty ember]

Is there a way to edit specific keys of specific bone inside animation sequence? (using editor utility blueprint)

[lusty birch]

show your timeline curve

[lusty birch]

looks ok...what is start pause button?

[muted socket]

It's another actor with a simple plane on it. It's these two buttons, I want them to grow slightly when the player looks at them

[lusty birch]

They are child actors?

(child actors are bugged)

[frosty heron]

btw are you sure it's not playing even once?

i mean it's one second it might be too fast for you to notice

[muted socket]

yes

[muted socket]

bugged how?

[muted socket]

I'm sure, I can see it play when I use "play", but it does nothing when I use "play from start"

[frosty heron]

Once you finished playing, it's not gonna play anymore

since the timeline would be at the end

[frosty heron]

don't you mean the other way around?

[muted socket]

isn't that the whole point of having "play from start"?

[muted socket]

100% sure

[lusty birch]

yes play from start resets timeline start time

you can do it manually

[frosty heron]

yea well, it's working fine on my end

[lusty birch]

child actors have lots of bugs and you better not use it

[muted socket]

wait no maybe I know

[lusty birch]

create another test component on this actor and test if it behaves OK with this timeline

[marble tusk]

So then you want it to return false if any of the ingredients aren't in the content array. Here's what I would do:

• Make a local boolean var. This will keep track of whether or not an ingredient is found in the content array.
• SET this boolean var to false before the second loop. This is to reset it before it checks for the next ingredient.
• After the branch's true SET the boolean to true. The ingredient was found.
• Add another branch after the second loop's completed and plug the boolean var into it. We'll act on whether or not the ingredient was found.
• Move the unchecked return node to the false of this new branch. If any ingredient is not found this will break out of the function saying it can't be crafted.
• Move the checked return node to the first loop's completed. If it gets far enough to have completed the first loop, then all ingredients were found.

[muted socket]

I use a line trace to trigger the "play" even. If the trace hits the button, start playing, but since the trace is still hitting the button it will trigger the "play from start" over and over, every frame

[frosty heron]

yeah...

[muted socket]

I need to keep a "isPlaying" variable and only trigger the animation if "isPlaying" is false

[frosty heron]

shouldn't use play from start when growing or shringking buttons

When not looking -> Reverse the timeline

When looking Play the timeline

[muted socket]

that's what I was trying, but if I only use play I'll have to reset the timeline to 0 and then play otherwise it wouldn't play if I look away and then back onto it

[frosty heron]

you don't

you just reverse the timeline when you are not looking

this way u get a smooth transition instead snappy back to the scale at time 0 value

[marble tusk]

The only problem I could see with this is if any recipe requires multiple separate instances of the same ingredient. Since each ingredient will be checked against the entire contents array it could count the same content index for multiple ingredients if that one item is needed multiple times.
Also, if there could be multiple stacks of the same item but in different entries of the content array it wouldn't count them together.

[muted socket]

I get that, that's for the shrinking, but if I then look back at it I will have to set timeline to 0 and play. I was planning of using "Play from start" for the growing and "Reverse from end" for the shrinking

[frosty heron]

No, if you are looking at it, keep it playing

when not looking shringking

so u dont SNAP the value to 0

If hovered Play anim
If Unhovered Play reverse

if I chose to play from the start, I will get snap effect

[muted socket]

I'm doing the same thing and it doesn't snap

[frosty heron]

if you finished the timeline

says it's already 200% the scale

Then you stop looking where it will windback to 0% within 3 seconds

but u look back within 1 second

the scale will snap to default scale again

[muted socket]

ah ok, I see what you mean

[frosty heron]

since looking is evaluated every frame, you can do some checks to not run the play function again when its already playing

but eh, honestly it's probably doesn't take much performance

if it's neglegible, I would just say, play the timeline when you look at it

and just rewind the timeline when you are no longer looking at it

[muted socket]

and for the "Look away" part, what would be the best way for it? Do you use the Tick event to check if you're looking at it or does the line trace have a handy helper?

[lost hemlock]

WDYM different entries?

[muted socket]

sorry found it, I can use a branch after the trace

[frosty heron]

You are already using tick for looking and it's only natural that you used tick here so you get the smootest experience.

If HitActor != Selected Actor

Selected Actor -> RunFunctionThePlayerStopLookingAtMe

and that function can just rewind the timeline

[marble tusk]

Like different indices of the content array. Since it's only checking each entry in the content array individually if there are multiple stacks of the same item spread out across multiple entries in the content array, then this method won't add them together. As in if you need 64 of an item, but it's spread out in two stacks of 32, then it'll see 32, say there's not enough, then see 32 again and say it's not enough without adding them together.

I don't know if this situation is possible for your use case or not though

[bronze lily]

this is suposed to make the light flash increase in speed but doenst have that effect. Think about it like increasing danger, starts slow and then increases until boom, currently lights flash evenly and then boom. any surgestions would eb most welcome thank you

[gentle urchin]

I sent a functional snippet earlier

[gentle urchin]

This^

[gentle urchin]

@lost hemlock just copy what my snippet does

[lost hemlock]

Im doing this now

[gentle urchin]

Welp ok

This is incorrect , as you probably know

[lost hemlock]

why so?

[lost hemlock]

You mean the first or the second? Because so far testing on these 2 items, axe (made out of 1 stone & 1 wood ) and basic wooden hammer (made out of 2 wood) gave me no problem with this technique up here

The 2nd is just an example to show the problem, im no longer using that version because it would let you craft even tho you had the recipe unfinished

[remote meteor]

you just have to find a single insufficient for it being "not craftable"

[gentle urchin]

Indeed

[lost hemlock]

how would I find a single insufficient?

[gentle urchin]

Inverse of finding the thing

If loop completes and you dont find what you're after ..

[lost hemlock]

But then it finishes as negative

[gentle urchin]

Your setup has a squared complexity as it is now tho so if you aim for rather large inventory or craftables, this might spiral out of cost

[lost hemlock]

you mean in terms of performance?

[gentle urchin]

Yes

[lost hemlock]

https://tenor.com/view/nervous-sweating-wet-gif-5309634380835449402

Im not nervous about thatt

[atomic shoal]

what are you trying to do Terra?

[lost hemlock]

But I need to know how to prevent any performance issues

[gentle urchin]

For each item you're looking for you will worst case go through close to entire inventory

[lost hemlock]

(I am nervous about it)

[lost hemlock]

yeah but what other better way is there?

[gentle urchin]

The one i sent you lol

[lost hemlock]

perhaps im using some kind of outdated medieval barbarian slow method

[gentle urchin]

Free of charge 😅

[lost hemlock]

btw, why would it cause performance issues?

[atomic shoal]

if you have 3000 items, worst case you'd have to loop through each one

[lost hemlock]

im guessing it will do no more than 30 loops ?

[gentle urchin]

If hes looking for 10 items, and those happen to be at the end of theninventory array

Thats 3000*10-10 iterations

[atomic shoal]

I think you'd want a map

[gentle urchin]

He got a map

But needs to swap the order

Complexity decrease to O(n), single loop

Which is "just" 3000 iterations

[remote meteor]

for each, if item is in the map, check if i have enough amount that the map needs

[gentle urchin]

Indeed

[atomic shoal]

yeap

[gentle urchin]

Which is what my suggestion does

[lost hemlock]

Doesn't the "Find" node also do some kind of boring iteration work inside of it? I mean how does it find the thing you want automatically?

[atomic shoal]

that's what I was wondering

[gentle urchin]

No, its using an internal hashmap,

[remote meteor]

yes but no 😄

[gentle urchin]

Maps are O(1) in lookup

[remote meteor]

it uses a hashmap to resolve the key to value in o(1)

[maiden wadi]

Meaning that it does not iterate. It simply asks the map where in it's memory said item key is and goes straight to it.

[gentle urchin]

Its like an array index kinda

[fiery swallow]

Not that it would really matter, iterating 10,000 times to check if something is in an inventoryits is lightwork.

[remote meteor]

Map and Set doesnt need to iterate when doing lookups

[gentle urchin]

If you wanna reduce cost further

[lost hemlock]

Does that mean that you can also get rid of this loop then?

[gentle urchin]

You can maintain an additional list of items in inventory in a map

For the initial "does inventory have this item"

[lost hemlock]

loops are slow, inefficient and bureaucratic like the byzantine empire. I get it.

or are they?

[maiden wadi]

Only in BP.

[fiery swallow]

Lightwork in cpp

[atomic shoal]

this is so wrong nvm

[fiery swallow]

Also you can improve the foreach loop blueprint macro in UE by far if you know what you're doing

[atomic shoal]

this is what I'd do

maybe yall can tear it apart lol. I only work in bp so I don't know jack shit about inefficiency

[gentle urchin]

This is wrong i think

[maiden wadi]

The issue with BP loops is that for start they're a macro. Which means they loop every internal function each loop as well. It's something like almost two dozen function calls before you even get to what is in the loop body. Now if you access the array element or array index, you're also running much more than just a getter.

[atomic shoal]

I remember seeing a video about that

[atomic shoal]

Using increment int

And a few other tweaks

I'm making a soulslike so I dont care about BP performance heheh. Graphics are what will do me in

[remote meteor]

it will be okay until a gamethread spike killed you on boss last hp 😆

[atomic shoal]

lol i had some things backwards, i thiiiink this would work. Would require everytime you add/subtract an item form inventory you update a map

[atomic shoal]

I still dont understand garbage collection and at this point Im terrified

[remote meteor]

looks good to me

[pastel apex]

question for data assets, if I change data during runtime (like i have a variable stored in a data asset and i change its value), does it persist and if so, for how long?

[remote meteor]

it does persist until the asset is being reloaded(aka restart game), but you dont really want to do that

[pastel apex]

perfect

i just needed it to be able to reset if the game restarts

does it restart if i were to go to different scenes?

[remote meteor]

i dont know if it will go away or not when you loose reference to it (open level)

no body does that anyway

[pastel apex]

eye sea

i guess on safe side i'll just store some of its data onto a save file when moving scenes

mostly was the idea of storing a cumulation of a resource per skill to be used to activate it

and being able to keep track of it even if the skill were to be swapped out and then back in

just for as long as the player is in the dungeon

and then it just resets when they leave it

[drowsy anvil]

Hello, I have this projectile that I cast to overlap with my pawn, but I also have other projectiles that I want to do this same code with, how do I make them all cast to this code?

[pastel apex]

if the other projectiles are children of that projectile, package that into a function and the rest of the children will use that same function

[pastel apex]

Souls like but instead of ghosts invading your session, you get ghost frames invading your session

[atomic shoal]

Ghostlike

[pastel apex]

you have infinite I-frames but you don't know what attacks can actually hit you

[atomic shoal]

You get infinite iframes, spend them wisely

[lost hemlock]

Wouldn't this be faster? If Im arraying over the inventory Content first and then the ingredients?

Comparing this to what I had before.

[swift bough]

Am I missing something when it comes to debugging a function in a blueprint function library? There's no debug objects to select, so I can't watch or see any of the variables as they get set. Are there tricks to debugging these?

[atomic shoal]

Did you look at what I posted?

[lost hemlock]

oh, this?

[atomic shoal]

Yea that one

[atomic shoal]

Print strings. Print strings everywhere

[gentle urchin]

Map container for inventory is usually not something one wants

To limiting

Not replicating etc

Order is not preserved

[atomic shoal]

Couldn’t you have the inventory and just keep a map that checks the items?

[gentle urchin]

You could maintain a map alongside the inventory array

[atomic shoal]

Yeah maybe not the best way to do it. I use an array of strucs

[gentle urchin]

If you truly aimed for 1000s of items in the inventory

[atomic shoal]

That’s what I meant

[gentle urchin]

And needed a quick out, in bp only project

[gentle urchin]

Ita troublesome to remove items then

You basically need to looop theninventory again

And check if any of the same item remains

[atomic shoal]

Yeah you wouldn’t be able to get out of using a loop at some point I don’t think

[gentle urchin]

I mean, it would be two loops

One for finding the items index

[atomic shoal]

If you had the inventory array and inventory map you could get the index without a loop using the map

[gentle urchin]

And one for checking after you're removed it from the inventory, so the map would be updated

[atomic shoal]

But yeah I don’t know what the logistics are of keeping the array and map in the same order

[gentle urchin]

I suppose you could get away with using the very same loop, since it would take the first index, and you'd "only" need to check the rest

[shy pecan]

dont prematurely optimize

[atomic shoal]

True

[gentle urchin]

Take the low hanging fruits 💁‍♂️

[sick sky]

Sometime you should

[shy pecan]

if you call it just once its not worth it

[atomic shoal]

I think there’s a balance

[sick sky]

If you already have the solution and know the full skeleton of your system

And if editing that later costs to much time and rework

[atomic shoal]

You always should be thinking about optimization, but you need to balance over engineering

Imagine setting everything up with casts instead of interfaces. Couldn’t be me

[sick sky]

Maps for inventory are not always used because Maps arent supported in multiplayer

[atomic shoal]

Oh shit really?

[sick sky]

Yes

Its not replicated

[atomic shoal]

Damn I had no idea

[sick sky]

So you usually use Arrays, or fast array serializer (c++ only thing)

The later is useful if you add/remove/edit elements in a big array and get events when something got added/edited/removed

[gentle urchin]

Theres caveats with that one aswell

Fastarray, that is

Its not always what its named to be

[sick sky]

Its has a bigger overhead

[gentle urchin]

And is slower in some situations

[sick sky]

If your array is max around 20-50 you can be fine with regular arrays

[gentle urchin]

#multiplayer message you were in the chat ;p

Anyhow , tmap recipe list and array inventory goes neatly together so its a fine setup imo

[keen tinsel]

------------question : best approach to handle x amount of actors , each with different logic ?
*context :
ive got a base bp actor that holds all the data regarding every other actor like mesh size , icon ....etc (extracted from data table)
now each actor can have different behaviour/animations/functionality , so im faced with two options :
1-use switch and enum in the base actor bp and go from there
2-use child bp from that and then do add the custom logic
ps (i tried child bp but casting to the child bp always fails )

[gentle urchin]

Child bp, with the events/functions in the parent

Then it just calls the functions as normal, and child overrides what that actually does

Regular inheritance

Never cast to a child class in a parent class

And dont push all your logic into a giga parent actor , imho. Separation of concerns and logic 🙂

[keen tinsel]

the casting part happens in another actor bp which is trigger box to make the item placement at specific spot , i made the custom logic in the child bp , and i need the overlap to be caused by this specific child to trigger the event yet it fails

thats if i were to avoid crowding parent bp with the logic of every actor

[keen tinsel]

will this cause any performance issues ?

[gentle urchin]

Nah only tech debt

Harder time troubleshooting

Worse code structure

[keen tinsel]

i can manage ,since its the only approach thats whithin the range of my understanding

thank you

[shy pecan]

famous last words

[graceful gust]

How do i remove a widget from viewport?

[gentle urchin]

Remove from parent

[graceful gust]

I need to cast to the widget then, right?

[shy pecan]

or store a reference to the widget when you first add it

[gentle urchin]

Or let it remove itself

Depending on whats fitting

I prefer, when i can, to let the widget logic rest in the widget itself

[graceful gust]

How

[shy pecan]

https://dev.epicgames.com/documentation/en-us/unreal-engine/blueprint-variables-in-unreal-engine#promotingtovariable

101 things

[graceful gust]

Thanks

[cold ginkgo]

Guys I feel like I'm going crazy, this feels like such a mundane thing and I cannot figure it out for the life of me. I'm making a linetrace of my first person camera and trying to get it to output to it's forward position, could I get some advice on what I'm doing wrong here?

I have no clue why it's firing in such a specific direction when all I'm trying to do is fire straight forward?

[shy pecan]

you need to multiply it

you are adding to the forward vector, when you need to multiply

[cold ginkgo]

I could kiss you.

Thank you so much.

[shy pecan]

i've pulled my hair out over tiny mistakes at night several times

[rough seal]

why is my 4 second delay taking 12 seconds

[gentle urchin]

We're all out of hair lol

Time dialation, multiple calls, or 7 other things

[cold ginkgo]

Haha

[rough seal]

why is this 4 second delay taking 12 seconds

[silk star]

hello - currently working on an animal crossing cylinder world style shader using this tutorial https://youtu.be/VCmDwfMz-jk?si=PBYzNI95XqbCL3Ri i've got the curvature working currently but all of the other things in the scene are floating. any ideas? I believe i've applied the function to all of the materials but that hasn't changed anything

[rough seal]

please can someone help me

[keen tinsel]

im no pro but it seems like u made a loop in there (assuming thats the case ) which means somehow theres a condition before that that makes those instructions fire 3 times ?

can you show the set up before that

[rough seal]

here it is

[keen tinsel]

can you disconnect the link of the last print node ? and then test and see if the prob still occurs

[rough seal]

its still not working

[keen tinsel]

try remove the delay and test again ?

[rough seal]

like this?

[keen tinsel]

yeah

[rough seal]

it shows up instantly

[keen tinsel]

hmm , okay , put back the delay but disconnect the two branches

fire it directly without conditions , and keep the delay and see if it count for 4 seconds

[rough seal]

ok

still not working

[gentle urchin]

Custom time dialation?

Or reduced global?

[rough seal]

whats that?

im srry english is my 2nd language

[gentle urchin]

Things that would affect delays

[rough seal]

i shouldnt have anything that affects the delays

[gentle urchin]

If they take 12 seconds when they should take 4, im inclined to think you do

[rough seal]

ima check

it might take some time tho

[gentle urchin]

Check class defaults

[rough seal]

ok

[gentle urchin]

I think it'd show up there for default values

And please 😂

Collapse things to functions and clean it up a little :p

For your own sake

[rough seal]

i normally do but im to tired

wait

i forgot how check class defaults

gimme a min

[keen tinsel]

its at the top in that bar where the green play button is

[gentle urchin]

Use search field for defaults

"Time" should prob get you there

[rough seal]

um

i think im doing something wrong

is this the right search?

like

[gentle urchin]

Guess its not in class defaults then

Yep

On beginplay

You can print them

GetGlobalTimeDialation
And
GetCustomTimeDialation

Youd probably know tho tbh

Game would run slower

4/12 = 0.33

[rough seal]

it prints 1.0

[gentle urchin]

So its not that

How do you know it takes 12 sec?

Is it not reset before that?

[rough seal]

i just counted

[gentle urchin]

So its not reset ?

[rough seal]

exactly

[gentle urchin]

As in yoj cant jump again?

[rough seal]

yh

it doesnt let me jump

does it help that there are 2 players?

[gentle urchin]

O.o

Multiplayer?

[rough seal]

local

thats the entire like "script"

[gentle urchin]

Why is it 4 seconds ?

Ment to be cooldown?

[rough seal]

yeah

[gentle urchin]

Set timer by event

[rough seal]

otherwise u can just fly by spam jumping

[gentle urchin]

Or use the IsFalling

As a blocker

Mivement component tracks air mode

[rough seal]

how would i do that? can u show/explain how i can do the set timer by event

bc i tried that

and

it didnt go so well

but

[gentle urchin]

Get character movement component -> isFalling

[rough seal]

then?

[gentle urchin]

Use that in a bramch instead of the reset

Remobe the 4sec delay and let the IsFalling ditctate wether you can jump again or not

Aalso, why isnt this regular jump?

[rough seal]

yeah but i also need the delay so u cant just run away from your enemy

its a dash feature

[gentle urchin]

Huh

Oh

Well set timer by event

Or use a timestamp

[rough seal]

how do i do the set timer by event

[gentle urchin]

Call that functionn

Drag from the red pin

Create custom event

Reset "DashCooldown"

[rough seal]

how would i reset it?

[gentle urchin]

With the custom event

[rough seal]

like this?

[gentle urchin]

Noot really

Replace doOnce with branch

On true of branch set DashIsOnCooldown (bool) to true -> call Swr rimer by event -> dash logic

Then Set timer by event -> custom event which only sets DashIsOnCooldown to false

[silk star]

Any shader experts that can help me out

[rough seal]

like this?

ok

like this

[gentle urchin]

Getting there

Branch checks that DashIsOnCooldown is false before continuing

And sets it to true instantly

The custom event sets it to false

[gentle urchin]

Perfect

Set the timer to DashCooldownTime (4 secomds ?)

Id make that a variable

[rough seal]

ok

lets say iw antewd a proggress bar that indicates when u can dash agian

how would i do that

[gentle urchin]

Lucky we got a timer now

You can promote the timer to a handle

[gentle urchin]

Allowing you to read elapsed time

[rough seal]

ok

[gentle urchin]

Or remaining

One of them (or both, cant recall)

[rough seal]

how?

[gentle urchin]

SetTimerByEvent has an output pin

Promote that to a variable

DashTimerHandle

Now you cam use that variable to get some info about it

[rough seal]

how?

[gentle urchin]

Grab the variable ?

[rough seal]

like this

[gentle urchin]

Id let the widget read the dashTimerHandle variable from the characterbp

Not push the data to the widget

But let the widget read it

You could set it up with an event dispatcher instead if you wanted to

Id just let the widget tick handle it tho

[rough seal]

like this?

[gentle urchin]

Dashtimer should be the timer handle

Then you need to check if its valid

And if its valid (or the DashCooldown bool is true), take elapsed / DashCooldownTime(the float variable used in the timer)

[rough seal]

how do i check if its valid

[gentle urchin]

Drag from it

[rough seal]

how can i do allat

[gentle urchin]

Type is valid

[rough seal]

in the widget or

[gentle urchin]

Yes

[rough seal]

i cant

[gentle urchin]

You might need to clear and invalidate it when you set the DashCooldown to false

Im unsure if its invalid once it runs out

[gentle urchin]

Wrong variable

Or variabletype

Right click the outout pin from SetTimerByHandle

Promote to variable

[rough seal]

wait

[gentle urchin]

Thats the var you want in the widget

[rough seal]

this is in the widget blueprint

[gentle urchin]

Yep

[rough seal]

this is in the player

[gentle urchin]

Yepp

[rough seal]

is this right?

[gentle urchin]

Dashtimer should be the Time input on the SetTimerByHandle

With default value of 4.0

(Name is not very descriptive imo)

[rough seal]

set timer by handle doesnt exist

[gentle urchin]

Huh?

[rough seal]

thats all i can find

[gentle urchin]

We're in the char bp still

[rough seal]

yes

[gentle urchin]

You already call the function

When you jump...

[rough seal]

u mean set timer by event?

[gentle urchin]

Sry yes

[rough seal]

oh ok

like thos

this*

[quasi steppe]

I made a glider system, I switch to flying mode while flying. I use on land for landing on the ground, but on land does not work when in fling mode. I tested it, if I touch the ground in walking mode, on land works. How can I solve it?

[rough seal]

it works now

tysm

!!!

[gentle urchin]

awesome

this is how mine would look like

ish

and something like this in the widget

since we have a timer handle, the extra bool is sorta redundant

[gentle urchin]

switch mode when you land

do a ground trace and define when to switch

or see if collision gets a hit

[quasi steppe]

How do I change the mode when I land without realizing I've landed?

[gentle urchin]

OnLanding is very specific for falling

try EventHit instead

could be usefull in general, when gliding 🙂

[quasi steppe]

thanks I will try. have a good day

[frosty heron]

@gentle urchin a very patient teacher 🐱

[gentle urchin]

Sometimes, not always lol

[ornate wren]

Anyone every used Set Focal Point for an AI?

[rugged junco]

is there a way to add a gameplay tag to an object you are targeting? i'm trying to make a toggle for a homing attack and i can't seem to figure out how to make it so the homing attack only homes onto an object when the target lock widget is activated

[frosty heron]

I will try to understand one of the "issue" here

lets talk about adding or removing gameplay tag

what issue do you have with it

[rugged junco]

i need the gameplay tag to be added to a object when the target locks onto it in order for the homing shot to tell what to home onto

right now it will lock onto a target by default if the object already has the tag on them, but i want it so the tag toggles when the target lock widget is locked onto them

[frosty heron]

lets focus on the gameplay tag

did you succesfully added the tag to the target actor?

verify the result

[rugged junco]

unfortunately no, it didn't work. the only tag on them is the enemy tag on the actor menu

[dawn gazelle]

The details panel there doesn't show you the runtime values.

You can use breakpoints (selecting a node and pressing F9 on it) which can halt execution and give you an indication of what logic chain is flowing

Alternatively, you can put print strings around and see which ones are being hit.

[frosty heron]

read what datura says

you can eject from your controller, click on the actor during pie and see the value. Or just print string

what you seeing up there is a "template". It doesn't represent the actual instance created during run time.

[rugged junco]

i tried added a sphere collision to the target lock actor and seeing if that could trigger the overlap, and didn't seem to work

[frosty heron]

Tried helping you with one problem at a time but you are too focused doing stuff without testing if the actor has the tag or not.

[rugged junco]

i tested it, and no it didn't recognized if it had the tag.

[frosty heron]

And how do you test it?

Elaborate

[rugged junco]

i tried with the breakpoints and print string, and none of them triggered

[frosty heron]

Your earlier picture proves that you don't know how to check the values.

Show

Have you tried ejecting from the controller, select the actor and check the values?

[rugged junco]

excuse the bad editing, but i haven't tried ejecting the controller but i did do the breakpoints and checking the values of the actor

[frosty heron]

If the function never get called work your way up

Find out where it's supposed to be called and find out why it isn't being called

[zealous moth]

is there a way to bind on widget destruction or removal?

[gritty raptor]

increment and decrement don't call RepNotify?

[maiden wadi]

Not on the server. The Set w/Notify node does that internally for the server. It's something that annoys a lot of network engineers because it's not as common to run OnReps on the server. Setting the value in any other way than that set node will only make it run when it arrives on the client if the client has a different value.

[maiden wadi]

Event Destruct is ran when it's removed from it's parent.

[gritty raptor]

Thanks, now i understand.

[frosty heron]

I dislike how Bp OnRep fire on server

[maiden wadi]

Curious why they didn't make that a project setting.

[mild jacinth]

so, I have a problem where Structure is unknown again and gives me packaging errors. I know that this is a common problem with unreal engine where blueprints for the structures get corrupted, either by moving them or something else. is there a way to fix this without creating another structure file? I cant really replace the references everywhere.

[frosty heron]

Don't use blueprint struct if you don't want to get that error

the "fix" not even fix, I would call it a bandaid, is to rename the struct

but this will revert all the values to default

blueprint struct is a minefield and it kills the project silently since you won't know you break it until you try to package the project

@mild jacinth declare the struct in cpp if you want to keep your sanity

[cold ginkgo]

Heya guys, back again with another query - trying to update a widget to display a specific string of dialogue on click, but my text variable is returning none despite it being inside the widget? InteractiveText is the name of the widget while it is being accessed by another blueprint, and it seems the issue is specifically coming from the Interaction Text variable?

Am I just missing something here?

When I go to assign something to the text (which I don't understand why I would need to if it's a variable from an existing text component?) I don't have anything to assign to it.

[frosty heron]

That's just a variable of type text, it's not the text component inside your widget.

Show your widget in Designer tab

[zealous moth]

I'm trying to get a secondary widget to remove itself once the other widget is removed from parent

[frosty heron]

show the full error

[frosty heron]

weird, it looks like it should work

[cold ginkgo]

Yeah, I might just remake the widget and see if that fixes things

No dice. I've got no clue what I'm doing wrong here.

[zealous moth]

What does this do as opposed to a binding?

in a widget

I know bindings typically work on tick

does this work in another way?

[frosty heron]

you probably just bind it to barPercentFill variable?

it will just set the percent to barPercentFill value every tick

my guess

[zealous moth]

yeah but when i change that var, nothing happens

[frosty heron]

I normally just use the create binding if I need something updated every tick

[zealous moth]

i dont need it every tick

but i figured i could find easy ways to update it

and by easy i mean lazy

[maiden wadi]

The only two bindings that are not every frame, are TooltipWidget, and the new MVVM bindings.

[dawn gazelle]

Are you sure you're setting that variable to a value between 0.0 and 1.0?

[zealous moth]

yup, print string confirms it

[maiden wadi]

It definitely works. That said, I tend to personally despise UMG bindings. Run into too many issues with them. And on top of that I prefer just to be able to open my widgets and look at Event Tick to see everything that is poll updated.

[frosty heron]

need some help with math

I got the green vector, but I want to clamp it by considering the capsule radius of the target actor

How can I get the orange location?

[zealous moth]

how are you getting the vector? difference in 2 locations?

[frosty heron]

does subtracting p1 and p2 location gives the green vector?

[maiden wadi]

((Direction x -1) x CapsuleRadius) + P2

[zealous moth]

yes

[frosty heron]

Why do we have to flip the direction?

will try that, thanks guys

[zealous moth]

did you want the location or directional vector?

[maiden wadi]

Direction is going towards P2, want it going away from.

[frosty heron]

kinda complicated, when the player too far away, I'm trying to just pull the character towards the target by some Pull Distance

but when too close, I need to clamp the range

[zealous moth]

Try Authar's method

[maiden wadi]

Presuming P1 and P2 are on equal Z levels, the above math will work to get the yellow location.

[frosty heron]

yeah doing it now, thanks

[frosty heron]

I got a flat level atm, but it wont always be flat

what if the Z is different?

btw direction would be P1 - P2 then normalize right?

[maiden wadi]

Maybe project it to a plane in that case. Get the yellow point in the same way. But then line plane intersect the points to a plane at that yellow location, facing P1

P2 - P1.

[zealous moth]

i would figure you want the same Z as the character so just break vectors and set the Z

[maiden wadi]

Target minus Start

[frosty heron]

Do I still need to flip the result if Target minus Start?

[maiden wadi]

You could do it the other way around in that case. I just assume you already had the direction from something else. 😄

[zealous moth]

what you could also do is normalize the vector for direction, get the distance between them and subtract the radius

[maiden wadi]

Doesn't quite work at differing Zlevels though.

[zealous moth]

p2-p1 = v21
normalize for direction vd
ignore Z depth

x,y,0

[frosty heron]

🥹 I will try to use the basic solution first

[maiden wadi]

Yeah, you could do that and add the P2 Z back maybe.

[frosty heron]

z problem can come after

[zealous moth]

alternatively, if you know where you want it relative to the player, or character, put a scene comp and use that as a ref

which is probably easiest

[final ferry]

hii, what did i do wrong here? my gun isnt shooting straight but i dont see anything wrong with the code and the socket isnt rotated weirdly

[frosty heron]

// Too close, get the point just outside the target capsule radius
FVector DirectionFromTarget = TargetingComponent->SelectedActor->GetActorLocation() - Actor->GetActorLocation();
DirectionFromTarget.Normalize(0.01f);
FVector FinalLocation = TargetingComponent->SelectedActor->GetActorLocation() + (DirectionFromTarget * Cast<ACharacter>(TargetingComponent->SelectedActor)->GetCapsuleComponent()->GetScaledCapsuleRadius() * 1.5f;

disregarding the Z, does it look correct?

[frosty heron]

attach a preview asset to the muzzle

see if it actually pointing straight

[final ferry]

how do i do that? this is the first time im using unreal sorry for the dumb quesiton lol

[frosty heron]

right click here and select add preview assets

you probably want an arrow or something

[final ferry]

hmm yeah looks like thats the issue, so do i just rotate the muzzel by 90?

[frosty heron]

that's not the best mesh to visualize

[final ferry]

i searched arrow and this popped up so i just used it

[zealous moth]

what is 1.5f?

[frosty heron]

instead the edge of the capsule, I want to offset it more

[zealous moth]

oh ok

[maiden wadi]

Red arrow forward. Green arrow right. Blue arrow up.

[zealous moth]

yeah looks good to me

[frosty heron]

testing X_X

[final ferry]

ahh ok that explains it thanks!

i changed it and the red arrow is pointing forward now but its still shooting sideways, this time more like a 45 angle

[mild jacinth]

If keys dont show up in Blackboard blueprint, is that corruption or something? I remember that you could add keys in there.

It just shows parent Blackboard class dropdown and thats it

[silent kiln]

Hello I am having an issue with using PCG. I am creating a backrooms level 0 using PCG. I have created a way to specify where i want walls to not spawn (creates a room of whatever size i choose but no way in or out) and i have created a way to make doorways for that area. My issue is that instead of creating a doorway using the provided SM, it creates gaps. I will attach screenshots of the issue, the code, and a little debugging if anything else is needed please let me know

[zealous moth]

in the build or PIE? blackboards work differently

[mild jacinth]

In the Editor

No keys tab just the BT tab

No + sign to add new keys

[zealous moth]

either the BB wasn't tied to a BT or.... something else

[mild jacinth]

when I open BT itself under details I can see the default key

no way to modify or add new ones or remove any of those

[zealous moth]

I'd remake it and see if it works. Somewhere the link is broken

[mild jacinth]

still nothing

[frosty heron]

Ok, I guess I have to flip the vector

it's coming out at the other side

[mild jacinth]

wasnt enabled

[zealous moth]

works now?

[mild jacinth]

yeah it was just hidden. no idea why one of the windows was disabled

[zealous moth]

doesn't it work?

i mean, in the static image, looks good to me 😄

[frosty heron]

I didn't flip the vector, it came out at the other side

flipping now

[final ferry]

the red arrow is pointing right now and the preview looks good as well but its still not shooting straight and for some reason it all looks like its pointing in the same direction

[zealous moth]

you should... uh... flip em with their legs up once in a while, you know, extra stun for the fans 😉 @frosty heron

try this @final ferry

[frosty heron]

it's probably hard to align the muzzle to where the crosshair is pointing at

not sure how others do it, but I would probably just fake it in a sense that, there may be a little bit of bending but what;s important is, the linetrace hits where my crosshair is pointing at

[final ferry]

works perfectly now thanks, but can you explain it?

[zealous moth]

oh, is he trying to get where the screen is pointed at?

[final ferry]

im just trying to get it to where the gun is pointing it, for now

i will have another mechanic for where the bullet shoots later but i want to figure out what is happening with this for now cuz i might need to know later and its just better to not avoid bugs

[zealous moth]

sure, so basically you have location vectors and directional vectors.
In your socket transform, your start is the location (hi5!)
For the end, you took the forward vector (a direction) and multiplied it by 1500. That makes no sense. You basically made something pointing somewhere times 1500.
What you want to do is add that value to another location to get the resulting location.
Location + Direction = new location.
Location - Location = direction to location (i forget which).

[final ferry]

i think i understand, i just followed a tutorial and it worked for him, i did use a model that i need to rotate myself so i thought that was the problem

[frosty heron]

@final ferry If you are missing the MuzzleLocation in EndLocation, then you will start from the world origin (0,0,0). You have to offset and start from the point that you want, which is the muzzle location

[zealous moth]

vectors just need to be understood as either locations or directions.
In traces, you have 2 locations.
If you want to point from A to B, you need to add a direction to A to get to B.

[gentle urchin]

Wellllllll

[final ferry]

and this is the code from video im following, so now im confused why his works

[frosty heron]

is the forward vector of the rotation, the direction?

[zealous moth]

it probably doesn't. he probably cut out when he does something out of the ordinary

yes

it's in the name

forward

[final ferry]

thats annoying, why would someone make a tutorial where they cut out the important bits lmao

[gentle urchin]

Moving from A to B requires a directional vector multiplied by a magnitude

[zealous moth]

because they needed content and doesn't understand how it works

yes @gentle urchin is correct, i forgot to mention magnitude

good catch

[final ferry]

and magnitude is the 1500 i multiplied by?

[frosty heron]

@gentle urchin How's the path finding going?

[zealous moth]

yes

[final ferry]

got it thanks!

[zealous moth]

otherwise direction is 1

[gentle urchin]

No goood , no time yet 😅

[zealous moth]

? what's going on with pathfinding?

[gentle urchin]

Directional vectors are like an arrow. They got a fixed magnitude of 1, and only points in a direction

[gentle urchin]

Nothing much, gonna give A* a go implementing my first pathfinding algo with some visualizer

[zealous moth]

turn based or live?

unreal has its own pathfinding thing

i used it for a maze game

[gentle urchin]

Turn based

[zealous moth]

hm, do you want a resource?

[gentle urchin]

Yeah i know but its not really attuned for any grid alternative

[zealous moth]

it's a grid

maybe worth looking at

[gentle urchin]

For sure

[zealous moth]

i'll dm, sec

[gentle urchin]

Trying to go by psuedocode

Forcing myself to really understand how it works

[zealous moth]

sec

[dawn gazelle]

So could you say, you're having trouble finding the time to find the path to the path finding?

[final ferry]

found another thing where in the vid its perfectly fine but mine doesnt work
so after i damage an enemy they die and should ragdoll, they dying part works fine (i removed the ragdoll and the model just falls through the floor)
but with ragdoll, it got the error "Set to simulate physics but Collision Enabled is incompatible"
searched it up online and put collision enable to physics only and i stopped getting error but the npc stopped dying
the hitscan doesnt seem to work anymore so i checked the ignore box on hitscan for mesh like the capsule but that didnt fix it, whats wrong here?
(sorry for a block of text)

[frosty heron]

Query and Physics instead of Physics only

[final ferry]

you mean this?

i put it on mesh and it didnt work..

[frosty heron]

Go for Collision Enabled (Query and Physics)

well that might not make all your problem suddenly go away but that's should be the setting imo

As for your line trace, what are you trying to hit againts? The capsule or the physic assets of the character?

[gentle urchin]

That would be accurate 😆

[final ferry]

the assert itself

[frosty heron]

if you are trying to hit againts the mesh component, then I do assumed you already have Physic assets

[final ferry]

still isnt working

[frosty heron]

Post the physic assets and the collision settings

Also play in editor, open the console with ` key. Then type Show Collision

[final ferry]

i honeslty might be wrong and think the physic asset is something else so ill post the entire thing(this is the one that gives error)
ignore hitscan in mesh gives no error but enemy dont die

[zealous moth]

snickers

[frosty heron]

when is this called? You are overriding the collision settings

at the time this is called, your hit scan will no longer work

[zealous moth]

well you are ignoring visibility

[final ferry]

this is the whole code

[zealous moth]

in your previous shot, your collision for trace is visibility

but you set it to ignore

make it block or overlap (maybe?)

[final ferry]

for all 3?

[frosty heron]

for the Mesh component

[zealous moth]

whatever you want to trace against

[autumn pulsar]

is there a way to detect the normal of collision touching my pawn?

[frosty heron]

I mean, if you switch it on the capsule component then the trace would hit againts your capsule instead

[zealous moth]

unless you need bodyparts, do capsule