blueprint

[exotic niche]

Question, I have a state machine for idle animation and walking/running animation. If I want the AI to play an animation montage during one of these states, I can just call an animation montage in the AI Blueprint right?

[late meadow]

anyone know how to access the BuoyancyDataStructure in blueprint?

[boreal sigil]

Yes. I usually set a Boolean variable in the character BP to true when i want a certain animation montage to play eg. bIsAttacking. Then in the animbp i get that variable and if true i use a DoOnce node followed by a PlayMontage. when the montage is finished i call a custom Event which is connected to the Reset input of the DoOnce node.

Then set the Boolean to false.

[exotic niche]

👍

[fiery knoll]

When selecting the node 'Set Members in...', you can show/hide members you want to set (see right panel):

[late meadow]

but shouldn't the buoyancy component be referenced somehow?

[untold fossil]

is it not possible to change a variable inside a struct that is within another struct?

Because this doesn't seem to work: https://gyazo.com/89e050c97bde62be995cb3b21a82c54b

🤔

Oh yeah don't mind that item isn't connected to struct out, it was but it didn't work. So I tried building the struct from scratch and setting it directly, but doesn't work either.

I can change the variables of a struct (at top level) fine, but when I try to change the variables of a struct within that struct (second level) it doesn't work

Is that normal behavior?

[earnest tangle]

you need to ensure everything you're changing is a ref and it should work

if any of the functions make copies instead of using refs, then it might not

[untold fossil]

I loop through an array of struct which contains another array of (another type of) struct. When changing the variable and reading the variable from the set members node it works, but then one node later when I get a copy of the array element I just set before hand it hasn't updated and is just the default value.
https://gyazo.com/be2abb21fa09b0f6c9fcb3ee7f24ac36

the print string in this example reads 20 (after one kill), default value is 20. When it should be 19

[earnest tangle]

then you're probably not setting the value correctly

there is no nested structs in this picture

[untold fossil]

https://gyazo.com/13592adcfd18e7906f04a5fe4e175c97

entire code

[lucid lynx]

My inventory variable is a struct array that's basically RowName/Quantity for a DataTable holding all my items. When setting the default value of this variable I'm able to set the RowName as if it were an Enum.

[earnest tangle]

I suspect the first Break ST_Mission always gives a new copy of the array

unless it says it's a reference when you hover the pin

[untold fossil]

lemme check

[lucid lynx]

If I want to add inventory items elsewhere it looks like I have to manually type in the RowName as a DataTable/Name.

[untold fossil]

https://gyazo.com/509954ec5ddf1eda7f9f05c9fde93935

[earnest tangle]

this is one of the reasons why I moved a bunch of nested logic like this into C++ where the distinction is much easier to work with :P

[untold fossil]

should be a ref

[earnest tangle]

What about the Actor Classes to Destroy pin?

[lucid lynx]

Is there any way to add items to my inventory variable like my list of items is an Enum?

[untold fossil]

https://gyazo.com/23b567ae8358d7b3a26920e90d7fa000

also ref

[earnest tangle]

No I mean the output pin on the previous one

[untold fossil]

Oh

[earnest tangle]

Make it an enum if you want it to behave like an enum? Not really sure what the problem is tbh :)

[untold fossil]

you mean this? https://gyazo.com/a495355849be7a22a67e4612a04f956d

[earnest tangle]

Yeah

[lucid lynx]

I mean like right here I'm able to set the RowName to something in the dropdown. It's behaving like an Enum.

[earnest tangle]

Not 100% sure but it's possible you get a copy of the array for each pin that goes out of it

[earnest tangle]

Ah I see, are your items actors or?

[lucid lynx]

When I go to add items that aren't in that default list it wants me to type in the RowName. My items are not actors.

My items are a DataTable with info on strength, value, stack size, etc.

[maiden wadi]

I can 100% confirm that you're copying the array here. Any Break struct node is by copy. There is no such thing as a reference through a break node.

And that was also after the loop macro copied it.

[earnest tangle]

Ah, yeah not sure how you'd get it with that particular node or if an alternative exists. Some of the other data table nodes have the dropdown but iirc they generally relate to getting items directly from it

[fiery knoll]

'Set members' indeed takes a reference. Maybe the type of Buoyancy is not correct?
(Is that a default UE type or is it something custom?)

[maiden wadi]

Instead of Making the struct manually, use GetDatatableRow and use the struct from that's return.

[lucid lynx]

That's the special sauce I'm looking for. It wasn't working when I used Make instead of Get. Thanks!

[untold fossil]

Ok thanks, I'll see how I can adjust it so it's a ref

[maiden wadi]

Good luck. 😄 Nested structs in BP is ~~a living hell ~~fun.

[untold fossil]

I honestly might drop the struct system for this particular part of the game entirely and swap it with object blueprints

Because I have a bad feeling this will cause way more headaches than it's worth

[earnest tangle]

It's definitely easier to deal with these types of things in C++ :P

[maiden wadi]

I don't even know if there is a way to get an array of structs out of another struct by ref. So even if you did make the ForLoop with ref output macro. You would still have to copy the array, modify it and then overwrite the entire array.

[untold fossil]

Yeah it's not possible, I've read some stuff online. It's just not doable at all. So I kinda have no other option than to move to blueprint objects. But honestly that might even be way better for what I need anyway, because it's a co-op game and the mission system will work better if blueprints are spawned that hold mission data. That way I can update mission data and only replicate that instead of having to replicate the entire struct of all missions and all data all of the time.

Easier to manage and more optimized. Win win 🙂

[earnest tangle]

Sounds like a good idea

[stable fossil]

Does anyone know what to input here? 😂 I cant figure it out

[lucid lynx]

Uh, try GetWorldDeltaSeconds.

[stable fossil]

Ah, I see. That one does not require this context node. Thanks man

[neat stream]

Guys how would you do a blocking volume spline?

[stuck kindle]

So I was following a tutorial series on making a RTS and I'm at the part where I have to make the selection rectangle, followed the tutorial perfectly but when I have to test the rectangle something must have gone wrong with the blueprint because the selection rectangle is invisible

Alpha is lowered but only at 0,625

[severe tendon]

This is probably beginner level easy but how can i change the value of a Bool variable with blueprint?

Like a certain condition is done then the bool changes from false to true?

[lucid lynx]

Right-click your BP window and type in the variable name or drag the variable into your BP window. Set will let you change the variable, Get will tell you the value it's at.

[past hazel]

"D:\UE\UE_5.0\Engine\Binaries\Win64\UnrealEditor.exe" "D:\UE\Projects\VRPGv\VRPG.uproject" 127.0.0.1 -game -ResX=800 -ResY=900 -WinX=0 -WinY=20 -log -nosteam

how to run in a window? now running in full screen

[severe tendon]

Anyone knows why this happens after i build the lighting?

[maiden wadi]

Are you doing a 2d or 3d space selection?

[stuck kindle]

3d if I remember well

[maiden wadi]

What are you using for the display?

[stuck kindle]

I think that this is the code

It should define if you're holding or releasing the LMB

[maiden wadi]

Can't really read that with the crazy contrast. But none of that is for display stuff. Just setting state.

Are you using DrawRect in HUD's Draw event?

[stuck kindle]

I'm a bit of a newbie programmer so it's quite difficult to understand that

[maiden wadi]

What is supposed to make the rectangle display?

[stuck kindle]

Holding the left mouse button

There is a video referencing exactly what I did

"Marquee Selection"

[maiden wadi]

Video is nullptr to me. I have no reference to it.

[stuck kindle]

https://youtu.be/dgydhuxTgBI

The first 10 minutes are exactly what I did, but the rectangle just won't show

And the cursor disappears

[maiden wadi]

Show me your version of 11:08

[icy dragon]

Tbh that is one of the more difficult mechanic to pull off

[maiden wadi]

I didn't find it that difficult.

[stuck kindle]

In 5 mins, going home

[maiden wadi]

To be fair. This tutorial teaches some bad practices. Saving the mouse button down state is bad. You can get that state directly from the controller even without a cast anyhow.

[icy dragon]

Well, you're a pro and likely working with AAA studio by now

[maiden wadi]

I did it before I was either of those things. It's a simple actor projection function for selection and a screen space FVector2D saved on mouse down, and the HUD Draw Rect frunction.

Even more fun doing it with a rotatable 3d box drawn from a niagara emitter. 😄

[earnest tangle]

I had to think for a moment how you would do the box select but yeah basically you just project the actors into a plane and then do a regular "is x/y within box" check so it shouldn't be too bad

[stuck kindle]

Remind me the screenshot key and where to find UE5 screenshots?

[maiden wadi]

Alt+Shift+S is easier.

Er

Win+Shift+S

[stuck kindle]

And where do I find the screenshot

[maiden wadi]

Ctrl+V

Can do it directly in chat here.

[stuck kindle]

Here it is

[maiden wadi]

What sets IsDrawing state to true?

[stuck kindle]

I am somehow not entirely sure

Literally followed the tutorial lol

Still far away to fully understand UE5 language

This is the start

And after all this there's the drawing code

[maiden wadi]

Can you disconnect that branch and move it away a little and test this?

[stuck kindle]

remove Is Drawing? ??

[maiden wadi]

Yes.

[stuck kindle]

Alright let me try

[maiden wadi]

Generally all you need in this check is if the mouse is detected as down, and then a distance check for the mouse down location to current mouse location.

[stuck kindle]

Like this?

[maiden wadi]

Should be.

Does that show anything when dragging?

[stuck kindle]

Nope

Cursor disappeared and no box

[maiden wadi]

For starts. Do you have this node anywhere?

If yes, uncheck Hide Cursor During Capture

[stuck kindle]

In RTS player controller

[maiden wadi]

Uncheck that setting. Will keep your mouse visible.

[stuck kindle]

Cursor doesn't disappear now yes

But the problem stays

[maiden wadi]

Then the problem is likely the vectors. One sec.

[stuck kindle]

I feel sorry for my friend learning landscaping

[maiden wadi]

Interface events in HUD from Controller. :/ I hate youtube.

In your HUD, the interface event that is supposed to set StartMousePosition. Is that being called correctly?

You can add a print, or breakpoint with F9 on a node to test it.

[stuck kindle]

This?

[maiden wadi]

Similar. It should be setting StartMousePosition, not Current.

[stuck kindle]

[maiden wadi]

Also, ticking in the controller to set the Current isn't necessary either. You can get that in the HUD's Draw event from it's owning controller.

[stuck kindle]

Wait so replace get mouse pos with startmouseposition?

[maiden wadi]

No, This event runs when you press left mouse, right?

[stuck kindle]

Yes I think so

[maiden wadi]

Replace the SetCurrent with SetStart here.

[stuck kindle]

Where

[maiden wadi]

Here.

If this event runs when the mouse is pressed for the first time, you want to set Start here, not Current.

[stuck kindle]

Anything else I should change? It still doesn't create the rectangle

[maiden wadi]

Depends on if Current is being set correctly as well.

Technically you shouldn't need to set it, could just get the mouse location from the controller itself.

Also. If I'm not mistaken, this will only work when dragging from the top left to bottom right.

[stuck kindle]

Ah Jesus

Should be correct

[maiden wadi]

Does that work when dragging from the top left to bottom right at least?

[stuck kindle]

It does

But it has to start from the cursor

Not the top left of the screen

[maiden wadi]

If it is starting from the top left, then your event setting StartPosition isn't being called on mouse down.

[stuck kindle]

Oh god where do I find that now-

[maiden wadi]

Most likely your PlayerController

[maiden wadi]

You can leave the rest of that, but try disconnecting the stuff to the input event and try this.

Released technically isn't necessary, habit.

Er. Released won't even work, I derped and didn't connect it. Just do the Pressed part.

[stuck kindle]

One sec had to do something

Oh Jesus I have to delete the whole thing

[maiden wadi]

You can just disconnect the white lines for now.

[stuck kindle]

I can't find "Cast To MyHUDClass"

[maiden wadi]

What is your HUD's name?

Can see it here for reference.

[maiden wadi]

For the HUD class though.

[stuck kindle]

this?

[maiden wadi]

You can drag off of the GetHUD's return value and start typing Cast RTS_Marq

Should be the only one in the list after that.

[maiden wadi]

Cast RTS_Marq

[stuck kindle]

HUD Class or just HUD

[maiden wadi]

Also from the GetHUD function.

Like this, yours should show here.

[stuck kindle]

Uhh-

[maiden wadi]

You don't need the class.

[stuck kindle]

Oh

[maiden wadi]

Don't worry about the released side.

Does this work to drag now?

[stuck kindle]

Perfect! Thank you

Man just this part was a emotional rollercoaster

But now that my code is different from the tutorial don't I have to modify it to continue onto unit selection?

[maiden wadi]

You shouldn't. This is all visual. Unit selection should use the Start vector and Mouse's current location, but other than that it's entirely independent.

Also.

[stuck kindle]

Okay

[maiden wadi]

Does this work when you drag from the bottom right to top left?

Because I have a memory of it being broken in that regard.

[stuck kindle]

It does

Work

Thanks again, this game will be a rollercoaster of emotions to make

[maiden wadi]

Hmm. Maybe that was something else. But at least it's working. 😄

[stuck kindle]

Hopefully the time I have to rely on this channel again I'll already be at a decent point within the project

[maiden wadi]

Tutorials are good to follow for getting familiar with stuff, but do keep in mind they'll teach some bad things. Much like this one. Saving extra state that you already have access to is bad. It's just one more thing you have to keep track of. They are saving mouse button down state on mouse pressed and released. There are several places where you can end up pressing the mouse and never getting a released call. Which means you'd never stop drawing that until you fixed that state.

[covert schooner]

Can animation blueprints have blueprint interfaces, if so how do you set them?

[maiden wadi]

Generally speaking, AnimBPs are meant to poll from their owning skeletal mesh's actor for state values. You rarely if ever access the AnimBP from other classes.

[stuck kindle]

Lmao, problem again

The unit selection works when I click on them but it's supposed to work also when they're inside the rectangle

Which it doesn't

[astral epoch]

Okay asked in #gameplay-ai but I think they're asleep.
Does anyone know why a tick event (in a task, not normal blueprint) wouldn't fire?

The rest of the task works fine but I need this tick to do some pathfinding checks to make sure characters haven't found some weird route.

[thin panther]

Dont crosspost please

[astral epoch]

Is that an actual rule?

[thin panther]

Yes

Rule 2 and rule 7

[stuck kindle]

Anyone available? Kinda urgent

[astral epoch]

Okay fair on 7 though that's kinda nested deep in the standard spam stuff.

[thin panther]

Please be patient

[stuck kindle]

Fair, just kinda have to continue on selection and I can't find any other help online

[thin panther]

Yeah you wont get many guides on rts games

Theyre a very complex beast and high on the list of projevts solo devs probably shouldnt go after

[stuck kindle]

I mean, I've got my friend for the landscaping and another friend for modeling

Just gotta get used to programming

[astral epoch]

Unreal is also really unsuited for them I find.
On a higher level they're not that complex, a lot of the functionality is repeated between units... but its the memory management and AI handling that starts to become a problem.

[stuck kindle]

Okay about what I said before, something confusing happened

It only works by selecting from bottom right to top left

From top left to bottom right it doesn't work

[shut fiber]

Does anyone know if property specifiers are at all available to blueprint? Having lots of toggles for stuff in BP and not having access to EditCondition is making for some very poor UX

https://thomassampson.co.uk/posts/ue4-uproperty-editcondition/

[earnest tangle]

nope

iirc if you tick the private checkbox that may filter it out from some views but that's the extent of it

it's a good excuse to learn C++, basic stuff isn't hard if you have at least some programming background :)

[shut fiber]

yeah I've done a little bit of C++ but I still prefer to stick to BP for most stuff

[desert juniper]

Is it possible for a player to bind to a delegate of a server owned actor on various clients?

[short reef]

So any idea why this might be happening with my projectiles?

[maiden wadi]

Might need better context on that.

[stuck kindle]

Bro got timestop mechanic

No idea by the way

[stuck kindle]

@maiden wadi I'm truly sorry to test your patience but do you have any idea on why this happens?

[desert juniper]

I have an actor that acts as a tribe manager
I'd like for the members of the tribe to subscribe to it's delegates, such as when a new player joins, one is invited, etc
The actor is a cpp actor firing off it's DECLARE_DYNAMIC_MULTICAST_DELEGATEs when something is triggered, but client's aren't able to actually listen to those events
Currently implimenting the bindings in BP

[short reef]

Okay I think I fixed it by having the projectiles just overlap rather than block each other

[maiden wadi]

If the manager is replicated, then they can bind to it just fine. Just remember that you have to broadcast that delegate from an RPC or OnRep.

[maiden wadi]

If I understood, your unit selection code only works from bottom right to top left?

[stuck kindle]

Yes

Once again, followed the tutorial..

[maiden wadi]

Hang on, I lost my surprised mask I use when someone says that about youtube tutorials. 😂

I'm pretty sure you just need to reconstruct the vectors. Is it the same video?

[stuck kindle]

I've been stuck on the selection section for so long

[stuck kindle]

Mhm

The part after the 10 minutes

[desert juniper]

Let me give it another shot

[maiden wadi]

That is odd. This function's comments state the direction of the points should not matter. :/

[desert juniper]

@maiden wadi So when a new member is added, it's done through an RPC and the AddNewMember (Server, Reliable) function on the actor updates by broadcasting it's multicast delegate
Trying to bind to it, manually in the player characters BP is yielding no results

[stuck kindle]

Not sure what to tell you honestly

[maiden wadi]

If I understand correctly, then you're only broadcasting on server? If so, you have to broadcast on clients as well once they received that info. Normally you'd use a FastArray for this, and on item added run the delegate broadcast. You can do it in a normal OnRep too by passing the old array in and crosschecking if necessary.

[maiden wadi]

I dunno. I avoided using that particular function due to it using an actor iterator and wrote my own screen projection checking functions.

[stuck kindle]

I only modified two assets by following the tutorial, this in MarqueeHUD

And this in Parent Unit Class

[desert juniper]

thanks, let me see if I can read up on FastArray

[quick grove]

sorry guys i just want to make sure that no matter how many digits there are I want the text to always be aligned with the top left corner of the monitor without the text coming out

[maiden wadi]

Set the anchors to the top right, and set alignment of X to 1.0

[quick grove]

oh thanks, easier than I thought

[stuck kindle]

Could it be that my problem comes from this?

[maiden wadi]

Shouldn't be.

"Shouldn't"

But. Who knows.

You could try reconstructing the points into a top left and bottom right style.

Get the min X and MinY for top left, and MaxX and MaxY for bottom right.

[stuck kindle]

I-

[junior hedge]

@rancid bobcat

[stuck kindle]

How do I do that-

[faint pasture]

With math

[stuck kindle]

Even worse

[faint pasture]

I mean you gotta learn math to do any of this stuff.

Finding which number is bigger is pretty easy.

https://tenor.com/view/triggered-gif-15147105

[mental trellis]

I believe everyone has done the tutorial. It's called school. Gotta pay attention, bro.

[faint pasture]

In your specific case, greater than and less than nodes are your friend

You have 2 X numbers and 2 Y numbers. You want one point to be SmallX, SmallY, and the other to be BigX, BigY

[maiden wadi]

No need for anything more than Min and Max functions.

[opal portal]

teach a noob please, whats that reflectioncubemap base node that i can not find?

[naive stag]

I feel like I just reinvented a wheel. Basically I wrote this before I even knew FindLookAtRotation was a thing. When I tried switching into FindLookAtRotation, my old 'code' was wayyy more smoother than FindLookAtRotation. So uh, use this if u want idk.

[naive stag]

Basically it only turns in 45 degrees instead of full 360

So only 8 directions it can face

[dull gale]

Hey all, I'm trying to do movement speed based on direction and I'm hitting a bit of a wall:
My objective is to have forwards movement be whatever I want, while having sideways speed stay at 300 at all times.
initially I just multiplied the movement axis value by .5 while moving right/left. This works great while I'm walking, as the sideways movement is basically the same as the diagonal movement (pressing W and D).
The problem comes when I run as I have it set to change the max walk speed to 900, meaning the sideways movement becomes 450.
I tried to go around this by having a multiplier hooked to the forwards axis and increasing that when I run, but I soon found out the "Add Movement Input" clamps the "Scale Value" node between -1 and 1, so having a bigger number than 1 doesn't matter.
Does anyone have any ideas how I can get around this? Thanks!

[stuck kindle]

So simply do this and connect it to Get Actors in Selection Rectangle

[faint pasture]

@dull galeMultiplayer or singleplayer?

[maiden wadi]

Can try it. Can't hurt. May work.

[dull gale]

multiplayer actually, currently doing research on what to keep an eye out for networking

[stuck kindle]

That "May" is more than enough to me as of now

[faint pasture]

That's gonna be way more involved then you'd like, to do it correctly anyway.

[desert juniper]

interestingly, looks like FindLookAtRotation just calls MakeRotFromX with Target - Start

[faint pasture]

Make the rotation, round it, ???, profit.

8 * Round(yaw/8)

er

45 * Round(yaw/45)

[dull gale]

alright, let's assume single player then for now. Oh also, I did think about just setting the sideways movement multiplier to something smaller, but I feel like that's a hacky solution I wouldn't want to do (especially because I have running and sprinting)

[fair oak]

how do i rotate the actor 90° with the current third person rotation? the event triggers when velocity happens and the location part works but not rotation (bottom part)

[stuck kindle]

Didn't work, actually it stopped working completely

[faint pasture]

Show what you have

[naive stag]

Interesting

[stuck kindle]

Selection section of the HUD

And the parent unit class

This is the other part of the first pic

[faint pasture]

Just add rotation or set rotation to be a combined rotation of current rotation and a 90 degree yaw

[fair oak]

wait yeah i'm stupid

but wait it should always be infront of the player model

[faint pasture]

What exactly are you trying to do?

[fair oak]

i want a colider box for my furniture placing system infront of the player it already moves with the player and rotates 90° when a item is in the way(on component overlap) but i also want it to be always infront of the third person character

like when the player spins spin the box 90° its slightly on the right from the actual anchor

[stuck kindle]

Hell yeah another problem came up

[faint pasture]

@fair oakSo you're saying you want the box to move left or right if somethings in the way? Like you'd want the box to be here?

[fair oak]

nope wait

currently its always in the north when its not overlapping with something when its north west it doesn't matter currently that would need even more scripting i think

[faint pasture]

So what do you want, that it's always on the grid and in front of the character?

[fair oak]

yes

[faint pasture]

BoxPosition = CharacterPositionRoundedToGrid + Gridsize * CharacterForwardVectorSnappedToGridDirections

[fair oak]

i'll try

[mental trellis]

You don't even need to snap the vector

[fair oak]

ok idk wich nodes lol

[mental trellis]

SnapToGrid(SnapToGrid(CharacterPosition) + (GridSize * PlayerForward))

[stuck kindle]

Apparently the units get selected even when the box is not over them

[faint pasture]

Could even lose the inner SnapToGrid, depending on how you want it to feel.

[stuck kindle]

But only from bottom right to top left

[mental trellis]

You can't - you'd end up placing the box in the same square as the player if looking diagonally from the back of a grid square

[fair oak]

the movement already works but i mean the rotation now i'm confused lol

[faint pasture]

Why would the rotation of a cube matter.

[fair oak]

i want it to rotate 90° when the play turnt slightly north west or south

[faint pasture]

You probably mean you want it to change POSITION, not just rotate

[mental trellis]

It's easy to do

[fair oak]

because its always infront of the player and the blueprint ancher is in the players position

[fair oak]

!

[mental trellis]

Abs(PlayerForward.Y) > Abs(PlayerForward.X) && PlayerForward.Y > 0 -> you're facing north

etc

[fair oak]

the actor rotates not the cube

[faint pasture]

So do you always want the furniture actor to be oriented with respect to the character?

but snapped to grid etc?

[fair oak]

yes

[faint pasture]

k so you need some function to round a rotation to the grid. Something like
Yaw = 90 * Round(Yaw/90)

There might be a built in one to do that, dunno

[fair oak]

yes like snap to grid but for rotations idk

this stuff with is a actor in the way works with rotation

[faint pasture]

but anyways, once you got that
FurnitureYaw = RoundTo90Degrees(CharacterYaw)

[mental trellis]

If you want an easy way yo round to 90... Round(Value/90)*90

[fair oak]

doesnt give me something good or i'm just bad at math

[mental trellis]

What is it doing?

[fair oak]

probably really embarrassing

its just gives me obviously the same answer

[mental trellis]

You're not rounding it...

[fair oak]

i know how do i round it 😅

[mental trellis]

And you don't want to touch the components other than yaw

break the rotation into components, divide the yaw by 90, round it, then multiply by 90 and then combine into a rotator again.

[fair oak]

the weird thing is when the player moves x and y change both and z stays 0

[fair oak]

and the weird thing is that in the viewport of the third person character the z yaw is just 270° and the others 0°

i found the issue why its two numbers sorry

[stuck kindle]

Nevermind what I asked I might just remake the whole code

[mental trellis]

Roll and pitch being 0 can be expected.

[fair oak]

prints 0 after the math

[mental trellis]

And what's connected to the divide node?

[fair oak]

y wich is the only thing thats not 0 when rotating the player

[mental trellis]

Yeah.

so does it output 0 for every direction?

[fair oak]

oh somehow its z wich was 0 before the math oh wow weird

[fair oak]

it put out 0 for x and z when the raw rotation was printed and somehow printed z as y

but then i just connected the divide to z anyway and it worked somehow

[mental trellis]

What you're saying makes little sense. Just screenshot your code.

[fair oak]

it works lol wait

[halcyon laurel]

Hi everyone, i know about how to use the command console in blueprints, however I want to go more advanced than that, let’s base it on either a PC or tablet, I want to just press a button on my UI at any point in the game, it attaches image to an email and allows me to send that to someone. is there that kind of functionality to external apps like that or am I going to need a proper coder for this sort of task?

[fair oak]

its really messed up when its a rotator variable it switches y and z for some reason and when the pins are split it switches back idk doesn't matter works now thanks and sorry that i took so long

[mental trellis]

Screenshot your code.

[fair oak]

the finished or the not working code?

[severe tendon]

When i cast something that isn't the character what should i get in the object node normally?

[mental trellis]

Just all the code relating to rounding your rotation, from breaking to making.

[fair oak]

this is the working one

[mental trellis]

The object you want to cast.

[fair oak]

also this happens before that

and this swappes y and z for some reason but when i break the prins into 3 pins it works fine for some reason and z is z again

now it works

[glass stump]

How do you

like reset the position of a BP?

Or like make it instantly teleport back to it's original position?

[severe tendon]

@mental trellis as the BP of the object?

[mental trellis]

The instance of the object you want to cast.

[flat coral]

What's the difference between Visibility and Camera traces?

[mental trellis]

Cast changes how an engine sees an object. It can't do anything without you giving it an object.

[earnest tangle]

Nothing. It depends on how you've configured your collision channels

[flat coral]

Is there any best-practices on which should be "trace the world as it looks" vs "this trace may interact with invisible objects"

[severe tendon]

The thing is that i write get "name of the object" but nothing appears

[mental trellis]

It's kinda in the name.

[earnest tangle]

I think visibility and camera are usually treated something of "can you see through this" and "can the camera pass through this"

[severe tendon]

I'm so used to only using get player character or player controller that i dont really know how to get normal objects

[earnest tangle]

so for example a wall will have block on both, a window will ignore on visibility but block on camera, and so on

[flat coral]

a window will ignore on visibility but block on camera
This is exactly what I was looking for, thank you!

[worthy carbon]

when i overlap the item it says its not valid and that's why the ItemIcon is not working in my inventory

someone help me please

why is it not valid

and how do i make it valid?

[severe tendon]

This is supposed to make an action when the character enters the collider and checks if the bool is true, yet for some reason there is an error, i've already set the bol value to true but it still fails

What is happening?

This happens too

[elfin wolf]

you have to cast to the character after you overlap it

[tight schooner]

The error means your "candado" variable is not set with any data. Instead you need to take the Other Actor pin, cast to it to check if it's the character class you're looking for, and then check the boolean

"Other actor" is the thing your box just overlapped. It's a generic actor reference which is why you have to do a cast check.

[gritty elm]

how to make line trace hit on 2d image?

I have png image in unreal. and this picture have some objects. i want to line trace with mouse with click and detect object on png picture.

I know about mouse trace to world. but how to detect things on 2d image?

[misty pendant]

How can i create ActorBeginOverlap to check if the pawn that is overlapping is the player?

[tight schooner]

@misty pendant Probably an assortment of ways to do this, but you can use Get Player Pawn, and see if your actor reference is == to it

[gritty elm]

I created sprite and i added collision box. how i can detect mouse trace on this collision box?

[faint pasture]

Those are channels. Like Photoshop layers. You could add more

[gritty elm]

Hi @faint pasture, Can you help me with this issue?

I have 2d png image and i want to line trace on image. i tried to create sprite and i added collision box to it.

but how i can detect line trace on that box

anyone can help?

[misty pendant]

figured it out how to do it, it was kind of simple. ty for explaining

oop

sorry

[wet shore]

what is the best way to go about making certain controls work only when the player is in a trigger box?

[remote meteor]

player overlap box, turns on boolean, leaves box, turns off boolean

when input is press, check boolean before continuing

[trim matrix]

Sorry I don't know where to ask, I'll ask here.
What's the deal with the player index and the player controller?

[quick grove]

sorry guys how can I make that the game saves literally everything when the player is exiting and automatically reload the saves when the game is launching?

[trim matrix]

I'm trying to figure out how to create a playercontroller class that "decides" who to give to control to what

[quick grove]

I saw the "Save Extension" on the marketplace for free

[wet shore]

Thank you! one last question: how do i set the controls i have in my level blueprint to work with the trigger box?

[severe tendon]

@tight schooner Ok thanks gonna check it out

[cursive grove]

What is the proper way to combine 2 blueprints in a parent blueprint? e.g. a mesh blueprint and a vfx blueprint

[severe tendon]

Btw, how can i block the characters movement in some circunstance

Like when you pick up a note you wanna read and you cant move until you finished reading and exit it

[faint pasture]

What exactly are you trying to do? Everyone is Player 0 on their own local machine besides couch coop situations

[trim matrix]

I'm trying to understand the logic behind it

behind player controllers, player index and multiplayer

[faint pasture]

Player Index only means anything on the server. On clients, everyone is player 0

also on client you can only see your own playercontroller, not others

[trim matrix]

Ideally I'd want a situation where on load the player 1 possessed pawn 1, and player 2 possesses pawn 2

interesting

[faint pasture]

Server does that

[trim matrix]

yes so far I've been developing locally and I'm using get player controller index 0 for input and all that

[faint pasture]

ew no

don't

[trim matrix]

what's the better way

[faint pasture]

Depends on where you're at

if you're in the Playercontroller, get self. If you're in the pawn, get its playercontroller, etc

[trim matrix]

so every pawn has a playercontroller by default? or do you have to set it on begin play or something?

[faint pasture]

What are you trying to do? Not every pawn has a Playercontroller, some have AIControllers if they aren't possessed by a player etc

[trim matrix]

i'm trying to understand lol

I made a simple pong clone so far

For research purposes

[faint pasture]

https://cedric-neukirchen.net/Downloads/Compendium/UE4_Network_Compendium_by_Cedric_eXi_Neukirchen.pdf

[trim matrix]

But if the game is single player only the gamemode has to be on client right?

Not that it matters

Also the player controller handles all indexes on the local client if there are multiple right?

[faint pasture]

Yes in single player or listen server the client and server are the same

[zealous moth]

indices* and what are you talking about?

[faint pasture]

But anyway, it's pretty rare that you'd have to get PlayerController(0), I don't recall doing it ever

[trim matrix]

read the log

[trim matrix]

If you have two local players on a multiplayer match you might want to get player index 0 and 1 I assume?

[zealous moth]

yeah that's why i am asking for further info

you will always be player controller 0 unless you are in a console, with multiple controllers plugged in locally

then you get playercontroller(1) and so on

[faint pasture]

Give an example of what you're trying to do where you even need to get the playercontroller by index?

The pawn knows its playercontroller, the playercontroller knows its pawn and hud and playerstate, what's the problem?

[zealous moth]

Make it a multivariable blueprint. Make an enumerable with 2 states and in your BP construction script, swap properties based on the enum value.
Now, as to why you'd want to do that, I don't know since it sounds like a massive headache.

[zealous moth]

you can either use internal boolean or "unpossess"

[severe tendon]

Ok

[zealous moth]

level blueprint access is not good. you would need to pass it through as a reference somewhere somehow. If you want something overarching, use the game mode instead. You can at least cast to that.

[zealous moth]

i tried that awhile ago and I didn't like it 😄
What you would typically do is that all elements requiring their data to be saved to set them as part of some struct and pass that onto the save game data. So when you reload the zone, you baseically respawn it from default and each actor checks in/=out based on the save data.
You can use GUID for that and add it to an array if it needs to stay or disappear. etc etc

[trim matrix]

Do you have to set the playercontroller manually in the pawn?

Or is the player controller accessing the pawn

[topaz badger]

Currently trying to get a delta of a distance curve but these values are exactly the same when comparing them. Do animation curves not update every frame in UE5?

[glass stump]

Is there a collision event for overlappingtwo components from two different objects?

[zealous moth]

on component begin overlap

[zealous moth]

what value do you get?

[topaz badger]

0 :(

[glass stump]

And then I cast to the other object?

How do I get the component after that though?

[topaz badger]

well 0 when comparing the difference, both go from 0-45 as the animation progresses

[glass stump]

Hm. maybe I'm just formatting it wrong.

[zealous moth]

if you need to sure

[zealous moth]

do me a favor, on tick, get curve value and set to print string

does it change?

if not, your problem is the name ref is probably invalid

[trim matrix]

@zealous moth if you can answer the question above that'd be appreciated as well

[zealous moth]

the overarching structure is that you have a game instance that contains your program. Then, your level loads and gets the game mode. The game mode then brings the default player controller and pawn and the pawn is then possessed if allowed. This is your PC and Pawn relationship.
If you were to unpossess, you would need to repossess later manually and declare it.

[topaz badger]

yeah, i get a value going up to 45 as the animation plays

[zealous moth]

ok, so it works 🙂

how do you get your difference?

lf - current?

[topaz badger]

well yes, but the last frame and current frame values are mysteriously the same

yep

[zealous moth]

can i see? :X

[zealous moth]

where's the rest?

[trim matrix]

But is the first ever possession done by the pawn asking it or by the player controller deciding it?

[topaz badger]

Ive actually pinned it to something else, following an epic tutorial and they have to use a do once node to set the initial value, seems like that is getting reset constantly

[zealous moth]

do once??????? what?!?!?!?!

[zealous moth]

oh god

[topaz badger]

its from an epic livestream/tutorial

[zealous moth]

oh no.... don't trust them

sometimes they mess up live 😄

i am trying to follow your logic

sec

[zealous moth]

both, the pawn must be possessable as well and enable input

[topaz badger]

yeah, haha. They showed it working. Its for a turn in place. Theres really nothing out there that shows a good way on how to do it.

[zealous moth]

is your do once supposed to start unclosed?

[topaz badger]

Thats what they show

Heres showing how that is reset

[zealous moth]

i can't say i know 😦

if it is a tutorial, i'd start over

and test it back each step of the way

^ i do that when the same happens on my side >.>

[topaz badger]

Its alright, I appreciate the help

haha yeah

[trim matrix]

A player controller can only possess one actor at a time right?

[zealous moth]

any controller can only control 1 thing

each ai pawn will have their own ai controller as well

uh oh, Authaer is coming out

[maiden wadi]

Possess, yes. But a few hundred thousand things can have input enabled.

[zealous moth]

how you been?

you changed your avatar from A

[maiden wadi]

Werk werk

[trim matrix]

nevermind the logic this is a very jank test world for practicing this

[zealous moth]

we are the robots

[trim matrix]

so if I press 1 then 2 I'm possessing ONLY pawn 2 right?

or if I press 1 and 2 I'm possessing both?

this is the player controller bp

[severe tendon]

@tight schooner sonething like this?

Doesn't really work

🤔

[zealous moth]

I think it unpossess the other

I've never played with that setup

You have an "On possess" event

you can print string it on your actors and say "Hi I am possessed!"

[trim matrix]

yeah ok I'm starting to figure it out thanks

next million dollar question is: how do I turn this into a multiplayer enviroment for testing?

Other than setting the clients to 2

[zealous moth]

LAN or online?

if you're poor, RPC

if you're rich, AWS master race

[trim matrix]

local lol

like, spawn multiple windows

[zealous moth]

oh

like classic goldeneye?

[maiden wadi]

There is also an editor setting to enable late joining button

[trim matrix]

I'm trying to do the most basic thing
I have a test world with two pawns, and I want to spawn two windows with two player controllers (representing two players in a server) one possessing each

[zealous moth]

oh boy, I haven't done that... LAN parties, man I tell you h'wat

[maiden wadi]

To clarify, do you mean two people on one screen, or simulating two people playing on their own machine?

[trim matrix]

two people playing on their own machine

[wet shore]

my main issue is that i am trying to reference a camera actor and cant seem to do it outside of the level blueprint

[maiden wadi]

Yeah, just set the players to two, or enable the late joining editor button.

Set it to dedicated or listenserver for type.

[trim matrix]

"Play as client" works?

It says it will create a server behind the scenes

[maiden wadi]

It might for dedicated servers. Not sure. I'm used to testing under Listenserver conditions where one player is host and player. Is how we do stuff at work.

[trim matrix]

Ok so if I want the two clients to possess one pawn each I can get all actors of class array and for each give one to each controller?

[maiden wadi]

You could. Though it's usually easier to use game mode overrides.

[trim matrix]

Wait, in the game mode bp how do I directly address a specific client?

Client 2, for example

[maiden wadi]

Depends on your game and how you have your framework set up. But there is a function named GetDefaultPawnClassForController.

[teal gull]

Hey folks quick question. How can I iterate tru 10 static meshes?
I have an array of references to static mesh and I want to set ref to the 10 bullets on my mag. Do i need to add to array one by one? imnot sure how to do a loop and get the correct static mesh each loop

[zealous moth]

in your game mode, create a variable of your camera actor and leave it unset.
When your camera actor spawns, on begin play, get game mode, cast to it and set the actor variable to itself.

Now anytime you need to refer to that actor, you can do so in the game mode.

[maiden wadi]

Alternatively. I also recommend not making separate classes specifically. You could just alter how the class works instead of making two very different classes.

[zealous moth]

so many 30+ playlist videos watched and they messed up something on vid 2 and 15 and nothing works

"but if you do it right, it works!"

[trim matrix]

Thank you, I have one more question
How do I actually program and address the server?

Like, do I work inside the gamemode?

[zealous moth]

look up EOS, they got a freebie

it's minimal work

[trim matrix]

I meant inside unreal

[zealous moth]

yeah that tells you how

i havent touched it in a year or so

[maiden wadi]

Hmm? EOS is just a connection platform.

[trim matrix]

Yeah I was wondering the same

[maiden wadi]

Pretty sure you're looking for an RPC.

[trim matrix]

I mean, even just something as simple as the server broadcasting to all clients a print string

[zealous moth]

oh, did i misread?

oh, RPC calls

read up on RPC

client makes requests to server and server does whatever

[trim matrix]

yeah but who's this "server"

is it gamemode? Inside my project what is the server represented with

[maiden wadi]

Server is an application of the game running on a machine.

[stoic quarry]

Hi, could someone help me privately with a bug I have?

[nova horizon]

Is there a way to use C++ and Blueprint st the same time?

[maiden wadi]

Case. A dedicated server is am application with no client and no graphics. You can run a dedicated server and a game client on the same machine, but they are not the same application so the client still has to go through RPCs even on the same machine because of the differing applications.

On Listenserver a server is an application of the game that is both server and a player. Think typical console shooters where one player hosts.

Talking about networked actors. Every player has a player character. So if you're on a dedicated server game, and there are two players, there are actually six character instances. Two on the server, two on client 1 and two on client 2.

The same case on a listenserver is that there are only six characters.

[maiden wadi]

You already are. Blueprint is C++ code. All you have to do is set up VS or Rider and open the solution file in your IDE. Extend the classes you want to extend or create new ones, and compile, and launch the engine through the IDE.

[nova horizon]

I see

Is rider better than VS?

Ah
Any real difference

I see

Cause I moved from Unity to Unreal and this is all very new to me lol

Thanks 👍

[trim matrix]

https://docs.unrealengine.com/4.27/en-US/Basics/UnrealEngineForUnityDevs/

[maiden wadi]

You're going to have an initial shock with how difficult it can be to reiterate changes. At least that seems to be the most common Unity User's experience.

[nova horizon]

Oh thank you this will be very helpful

[nova horizon]

I think I've already had a few initial shock lol

[maiden wadi]

Having never used Unity. Can't say. 😄 Using Unreal was pretty easy to learn for me.

[nova horizon]

Same lol

Unreal seems very very complicated compared to Unity but I feel like it benefits this way cuz it's more flexible

[nova horizon]

Problem is am using UE5

[trim matrix]

It doesn't matter much, all the concepts are the same in UE5, only the UI changed a bit

[maiden wadi]

I feel like Unreal has a ton of framework that Unity seems to be missing. And rather than learning them, Unity users seem to build from the ground up and fight the systems already in place instead of understanding them.

[nova horizon]

It takes longer to do stuff but I don mind it

[nova horizon]

Ah I see

Anything changed with the code or?

[trim matrix]

code from UE4 is almost completely unchanged when going to UE5 unless you were already pretty deep

[nova horizon]

I see alright transitioning from C# to C++ shouldn't be too hard
I did basic C++ before I did C#

Yep I know that

But I'm more excited tbh lol

Will do 👍

I should go
There are other people who probably needs help more than I do
But thank you

https://c.tenor.com/IteKGRzP6AIAAAAM/i-am-the-milkman-milkman.gif

[grave relic]

Hey everyone 🙂 Wanted to ask if there are any great plugin for sequences?To make an interactable sequences? Logic like "call sequences 1,2,3 with buttons at your widget blueprint " Sorry if its sound weird but I can't say what i really want to due the rules of this server :DD

The difficulty is that I want to automate this process

[high ocean]

Any idea on how to "set camera view"? There's a function to get camera view, but not one to set it. I need to set another actor's camera view to the current actor's.

[maiden wadi]

As in you want the current viewport to go to that camera, or you want to rotate a camera to a view

[high ocean]

First option 🙂 the other is clear enough with blend. But can't seem to find a solution for "the other way around".

[maiden wadi]

There should be a SetViewTargetWithBlend in PlayerController.

[high ocean]

there is, but it will blend from current view to "that camera's view".

[maiden wadi]

Not with a 0 time input. It's instant.

[high ocean]

Camera 1 (current) -> Camera 2 (target). Yes (instant). I need Camera 1 (current) -> Other player's camera view & SET it to (current) view.

Ok, here's what's wrong:

• I'm spawning a mount (spawn another character BP then destroy current)
• If the SKM is rotated towards the camera, the camera of the newly spawned mounted character will have it's boom reflect it's spawn rotation (obviously).
• I need to somehow "send" the current camera's view over to that new character so the transition is seamless.

[maiden wadi]

So problem is that possessing the new pawn keeps the old pawn's camera rotation?

As in if you're facing the mount's left, possession makes you look left afterwards?

[high ocean]

I'll make a quick vid... I'm wasting ur time this way 😐

[maiden wadi]

Man, I'm playing video games. I'm already wasting time. 😄

If I did understand correctly though. I think you're looking to set the controller's control rotation on possession of the pawn.

[high ocean]

😭 wish I had some time for that 😐

https://streamable.com/nzom4m

so there it is... I need the camera to "stay put"

and "translate" it's view to the new camera of the mount

only found some hacky shenanigans online which I'm not gonna implement lol (with the spectator pawn n shiet lol)

[maiden wadi]

Seems like a control rotation thing if you're using spring arms with control rotation.

[high ocean]

I am using those, yes

[maiden wadi]

That's odd. I don't remember that setting automatically like that. I recall having to specifically implement control rotation changing when I did some of my possession code.

[ancient sparrow]

is there a blueprint node that takes 2 execution inputs, and either of them will activate the same execution output, but it will output a boolean depending on which input was triggered

[zealous moth]

why????

[high ocean]

Getting the camera/camera boom's transform returns 000 regardless of the SKM rotation. However, the "get camera view" node returns some values. Problem is how to "set camera view" of the newly spawned one - there's no function for that.

[ancient sparrow]

i just need it

[maiden wadi]

Usually you just make a new Event with a boolean and call that event from your other two execution lines with differing boolean inputs.

[ancient sparrow]

but how do you get the differing boolean inputs

[ancient sparrow]

ah yeah

that works

[maiden wadi]

I'm not really sure how I would handle that. But I feel like something is setting your control rotation during that transition that shouldn't be. Maybe one pawn is destroyed or unpossessed too early. Barring that, you could just save the control rotation's state pre possession, and set it on some client side possession notification. Not sure there are any of them in BP alone though. I usually hook into some of the C++ only ones and add BIEs or delegates.

[normal rampart]

Is there any way to determine the direction an actor is moving when setting the location directly and it's not technically using physics to move? I'm using a sequencer to set the transform of an actor and need to know if it's moving left or right on the X axis.

The only thing I came up with is to cache it's X location, delay an arbitrary amount, and compare the X location with the cached X location, but it has pretty unreliable results for some reason.

[high ocean]

I can get the control rotation no problem. However, so far, I haven't found a way to SET the control rotation. It's exactly what you are saying. The control rotation gets reset to the new pawn's control rotation which is different. So after possession, I should somehow "force" it, SET the control rotation. But I can't find a node/way to handle that in BPs 😐

[maiden wadi]

Odd. Was that hidden in 5? Sec

Should just be this.

[high ocean]

get forward/right vector? Or maybe I'm not understanding the question properly...

[high ocean]

wtf... lemme check again... I wrote those exact words...

[high ocean]

Ok, ok... my bad, did it in the character 🤦‍♂️ got confused trying so much stuff fast. I'll come back with the results - would be nice if it worked 😄@maiden wadi

[normal rampart]

The actor doesn't turn at all, no change in rotation, so the forward and right vector remains the same. It just translates

[maiden wadi]

😄 It happens.

[high ocean]

Like a charm 🤌 👏
Thank you (again). You've helped me develop at least 25% of my first two games lol 😄

[maiden wadi]

You have to save state yourself. You can make a velocity from two points, so if you are setting it on tick, just save the current location before moving. CurrentLocation - PreMoveLocation = Velocity

[bronze quiver]

So im driving a car through a box volume, acts as a checkpoint for now and there is collision on it causing the car to flip? unsure what im doing wrong

[maiden wadi]

Control rotation is fun. Specially with replication compression math and the confusion it can cause. Wait til you set up a nice little AI system that does all the looking around and stuff. And then realize that there is a SetFocus function in the AI controller that has multiple tiers of focus and everything and works out of the box like a player looking around. 😄

[bronze quiver]

this is all thats on it really

[maiden wadi]

Sounds like you want to remove Blocking channels and only use Overlap channels?

[bronze quiver]

since im still learning, thats what I think I want for this object only, yes

[high ocean]

I've got mixed feelings about things I dig into for a day only to find out there's some tickbox built into the engine that auto-handles all of it for me lol. I feel both stupid for wasting time & happy that it's both fixed and easy to do so lol 😄

like... this control rotation for instance 🤦‍♂️

I saw it was the only value changing when moving camera, looked in the wrong place, didn't find the function and started looking online pffff

[maiden wadi]

I used to love that feeling. 😄 Most of my time is spent in UI though. No savior checkboxes.

[high ocean]

I keep saying for 6 months now that UMG really really needs some love from Epic... 😐

[maiden wadi]

Specially with Common UI coming out. That plugin literally makes me nauseous.

[high ocean]

the whatnow?!

omg... wtf is this?!

😮

[maiden wadi]

Some new UI extension stuff from Epic. I took a look into it a long while ago before UE5 release. It's coded terribly.

[normal rampart]

Yeah that's what I was trying before, but I revisited it just now and ig it works somewhat properly when I compare the values BEFORE the delay. Idk what sense it makes, but it works better. Thanks 🙂

[high ocean]

so... UMG did get some ❤️ afterall - but according to ppl I trust looks at @maiden wadi it isn't so good? 😆

[high ocean]

Oh, so yea, it's just control-oriented stuff from what I read here

[maiden wadi]

Eh, it was in alpha. With any luck by 5.13 it'll be okay. But after seeing someone const cast out of a const OnPaint function to set a timer just to create a tick function that they could have avoided with a simple time state variable. I got allergic. Then at work we started implementing it for other reasons. It literally stops the middle mouse button from working from nothing but being enabled. Zero settings, zero implementation, not being used, just enabled in the project. No middle mouse in actors input or UMG.

[high ocean]

So UMG as a system still suffers 6 year-old bugs lol

Well, honestly, I feel like those "binds" are utterly useless as a system and could be safely removed as nobody in their right mind uses them. If they would at least expose a tick frequency (like all actors have), they could become more useful. But then again, I'm barely staying afloat with half of the changes so yea...

[maiden wadi]

Even with a frequency, they're pointless. Bindings are bad for two reasons. Two bindings is already more function overhead than just using the widget's tick. And if you ever set the property that thing is bound to once, the entire binding won't run anymore. Stops updating.

[high ocean]

Wow, didn't even know that. Then again, I never used them so 🤷‍♂️ 😆

[lime yoke]

Can't set variables on anim notify states. I think this is a bug.

Variable "NameOfVariable" is read-only within this context and cannot be set to a new value

[bronze quiver]

Collision on a box volume?

[fervent cave]

does someone has some pointers on dynamic depth of field? cant seem to stop ue from replacing my volume with some random default one instead of just tweaking the values on my volume

[zealous moth]

Remember, the hard limit on a poor tier pc is 35 afterwards the FPS drops

we had that debate!

[glass stump]

How do you define what component is hit in an Event Hit? (Of the other object.)

[faint pasture]

Isn't there a component pin on the event?

or in the hit result

[spark steppe]

anyone succeeded adding timespan to datetime struct in ue5?

[lime yoke]

Do you guys happen to know how to make a static mesh that can be pass through one side but no from the other? Something like a Dark Souls fog.

[paper galleon]

Not one static mesh. You'd have to combine collision volumes with the static mesh in an actor

[lime yoke]

Yup, I suppose that should be the way to do it.

[naive stag]

So I want to make something but I have no idea how to make it and I couldn’t find anything about it. Is there a way to see collisions only in game?

Not in the editor, but in game

[paper galleon]

Yeah. Look for the HiddenInGame bool in the component defaults and turn it off. Also ensure that visibility is on

Not so sure about "only" in game though.
But the above method will be visible in editor and in game

[naive stag]

So when I will export the game it will still be visible?

[paper galleon]

Nope.

Ahh I see that you meant now.

[naive stag]

I just want to be able to switch visions between normal view and collisions only by a press of a button

[paper galleon]

Nah. Collision debugs are editor only features. You have to implement some sort of visibility mechanism yourself.

[paper galleon]

Is it a gameplay feature or you're debugging something in-game.

[naive stag]

Gameplay feature

Think of it as a blind character

That can sense stuff

[paper galleon]

Sorry, you'd have to implement it another way. Materials, really thin static meshes, 3D wigets.

Several other options really.
I tend to favour materials but I have no idea how to implement it at the moment

[naive stag]

What about the 3d widgets?

[paper galleon]

I haven't done anything of the sort that you're trying to implement. So I can't really help that way.

🥲

[naive stag]

I think if I’ll do it with materials, it will cause me lots of trouble further when I will try to build a map

Rn it’s just a testing map

Wdym by effect?

[paper galleon]

The collision visibility effect you're going for.

[naive stag]

Oh you mean the texture it will be that will over the collisions? It doesn’t matter at all tbh, as long as there is a texture that indicates it’s existence

[spark steppe]

so i want to add time skipping, my game pretty much uses seconds as ingame minutes, so i thought i could just set time dilation to 10, delay for minutes/10 and set it back to 1

but im not getting what i'm expecting

i've read that time dilation messes with delta time, so is it not an reliable way to pass time within a certain amount of real time?

[paper galleon]

I'd use states for time skips.
Time dilation is best for slow mo or fast forwards over a short period.

That's what I'd use it for anyways.

[spark steppe]

what do you mean by states?

time dilation would have the benefit that AI would still do things

but i guess it's also heavy on CPU "compressing" all that within a shorter period of time

with time dilation of 10 and 30fps, i should still get 3 ticks per "what would be a second normaly", which should be ok for most AI stuff

[paper galleon]

States like "what should be happening at this time of the day?"

When I run the time skip event, I'd do a bunch of checks and set a bunch of stuffs.

I'll admit this method only works best if you're keeping track of only a few stuff.

[spark steppe]

yea, but ticks still happen, with altered delta from how i understood it?!

i want to increase FPS actually

with 30fps and time dilation 10, it should process at 300fps 😛

kind of

yes

😄.

but no

it does not from my observation 😄

e.g. "get game time" should be affected by time dilation

i'm aware of that

see, i may be patient as gentoo user, but not t.maxfps 3 patient

alright, so i have to think of how to implement a sane schedule for my ai tasks and such

so that i can just alter the time value, with some offset, and notify my AI to rethink their life decisions

[paper galleon]

Basically states.

I love implementing states and schedules

🥲

[spark steppe]

whats your source of truth to manage your time? custom game instance?

[candid geyser]

Any quick ideas on how to help the game detect if the player isn't moving?

[paper galleon]

Subsystem.

[paper galleon]

Check velocity.length is lower than whatever threshold you want.

[spark steppe]

i was kind of considering to ask in cpp if i should make time a subsystem 😄

[candid geyser]

What if I just check the velocity and ask if it's close to or equal to zero?

[paper galleon]

Lol. 90% of the time the answer is subsystem.

[spark steppe]

thanks ozy and laura

i guess i'll leave that problem for future me, and lay it down for today 😄

[paper galleon]

You could do that. Same effect I think?
I just prefer checking the length

[candid geyser]

I'll give velocity a try, thank you!!!

[paper galleon]

You should use a proper threshold. Due to how the movement component works, the velocity may not be close to zero and yet the character looks motionless

[cobalt gulch]

How can I make a shield blueprint allow players to vault over the shield to the other side

[candid geyser]

What do you mean?

[paper galleon]

In my game for example, the max walk speed is 150. When I check if the character is not moving I check that the velocity length is less than 50 or is it 100?
I don't check if it is equal to zero because it may not be most of the time and yet the character looks like it's not moving.

[candid geyser]

The problem so far is that I need to to check the velocity in all directions. Left, Right, Forward, Backward, Up, and Down.

And I dont think velocity length will check my up and down velocity

Because, well, length.

[paper galleon]

Yeah it won't. Just do what you have in mind. You should be fine

[candid geyser]

AHA IM SMART I KNEW IT

I was right for once woooo B)

[paper galleon]

😅

[candid geyser]

Ohhhh boy now I have a new "thing" to workaround

[faint pasture]

That is an insanely loaded question.
Do you already have a vault mechanic?

[candid geyser]

Get Velocity is a vector, I know I can just split it, but I dont know if that will work for what im doing.

Hmmm

[faint pasture]

You want to know total velocity right?

[candid geyser]

Oh oh oh wait I MIGHT have an idea

[faint pasture]

Or just velocity in XY?

[candid geyser]

Velocity in all directions

[faint pasture]

Like, are you trying to check if velocity is 0ish or what? Just check its length.

[paper galleon]

Velocity is a single direction. You usually check it against another vector like actor forward or actor right to determine its direction relative to the character

[cobalt gulch]

Yeah but its buggy and im going to start over

[faint pasture]

Get it working before asking how to make something that depends on it.

[cobalt gulch]

I just want it so the player goes to the other side nothing fancy

[candid geyser]

I wanna check if velocity(player move speed) is close to, if not equal to 0

[cobalt gulch]

Perhaps an animation is played

[faint pasture]

OK so velocity.length

[candid geyser]

But I need it to check every axis.

[faint pasture]

that's it

[faint pasture]

Do you understand what a vector is?

[candid geyser]

Velocity length works for up and down as well?

[faint pasture]

or do you want 3 answers.

[candid geyser]

I very vaguely understand it

I know it's in relation to the players direction(???)

[faint pasture]

Just check velocity length and read up on vectors. It is not in relation to the player's direction (whatever that means)

[paper galleon]

Velocity is a single direction. There is no up or down.
You check it relative to another vector on the character. Like the actor forward vector

[candid geyser]

Wait wait so then what are vectors???

Ohhh okay

[faint pasture]

Google will tell you

[candid geyser]

Okay okay I think im getting it haha

[paper galleon]

I want to facepalm so badly lol.

[candid geyser]

Feel free bro

[paper galleon]

Lmao.

Just Google vectors. Requires the tiniest bit of math

But they're pretty easy to understand

[candid geyser]

Any amount of math is my kryptonite

[paper galleon]

😬

No gamedev without math. Sorry

[cobalt gulch]

ugh

[candid geyser]

I know I know

I looked up vectors

And

I do not feel smart for not forgetting what they are

[paper galleon]

Lol. Vectors have a magnitude and direction.
They exist in a frame of reference.
The form angles relative to each other. That's how you get a direction

[candid geyser]

Come on man im the same guy who asked how to make a circle
You should know I suck at this by now

[candid geyser]

Yup :')

[faint pasture]

Velocity is (Speed in X, Speed in Y, Speed in Z), and its length is Absolute Speed

[paper galleon]

I think they're also looking for the direction of the velocity relative to the character. To know if the character is moving forward, left or up.. and so on

[faint pasture]

Yeah idk, gotta ask a good question to get a good answer.

[candid geyser]

Nope, I only care if the player is moving at all

[candid geyser]

h e y

[faint pasture]

K then Velocity.length is your speed. Now make sure you understand it before proceeding.

[paper galleon]

Oh, you mentioned forward, left... yada yada. So I assumed.

Like I stated wayyyyyyyyyyyyyy earlier.
Use velocity.length

Like Adriel has stated also

[faint pasture]

Something something horse water.

[paper galleon]

The horse ain't thirsty enough

[wary sail]

Not sure where to put this question but does anyone have any idea if its possible to get a line trace to hit a Niagara particle specifically the surface of the new fluid simulation templates UE5 has? I'd assume theres not a out the box solution but thought I'd ask in case anyone knows differently?

[pliant solar]

i love blueprint

i made a crouch blueprint to make it more smoother

im working on it

seems done

hey it works

pog

[fleet delta]

Hello, Looking for some help. I'm trying to get Rinterp to Constant to either complete the rotation if its past a certain degrees or to return to the original position using the InputAxis. Everything I've tried so far either looks like the char is teleporting from left to right or gets stuck at an angle going the wrong direction. Player is locked to the -/+ X Axis so 2d movement.

[covert schooner]

Is it bad form to prefix event dispatchers with On? for instance OnFire? Is there any coding practice here?

[tight schooner]

https://github.com/Allar/ue5-style-guide#3314-event-handlers-and-dispatchers-should-start-with-on

If you want a style guide, there's one

[covert schooner]

thank you so much, that is EXACTLY what I was looking for.

[old kernel]

Hey so I am having an issue with a 1D Blendspace not playing one of the animations at its point. The animation is like stuck in its reference pose and not moving

Would anyone know what to do with this?

[candid geyser]

Actually hang on I worded that poorly

Im trying to use a behavior tree to alternate branching dialogue paths. Right now im trying to figure how to get it to branch depending on the players rank.

[trim matrix]

The same behavior tree that is used for AI?

[candid geyser]

Yeah.

[trim matrix]

Are you aware that this is not the correct use of a behavior tree at all?

[candid geyser]

Yup.

[trim matrix]

Is the player rank a variable in your blackboard?

[candid geyser]

Do you mean a variable or a key?

[trim matrix]

Key

[candid geyser]

I dont have the players actual rank set, but I have the required rank as one.

[trim matrix]

You need the players rank.

Just use a selector node and blackboard decorators to "branch"

Next time you make a dialog system, make sure to not use a behavior tree.

[candid geyser]

Yeah, should I use a service to actually determine the players rank?

[trim matrix]

Not meant for this in any way.

Just feed the players rank into the blackboard

[candid geyser]

I know, it just makes it so I can take the actor, place it where I want, and assign it the tree

And then just like that it works

So I could make like 5 trees if I wanted, and just assign them to their actors

And then I can initiate dialogue like that

[trim matrix]

You can do the same using a blackboard value for the rank

im not sure the issue.

Either way, just do whatever you think is best

[candid geyser]

Hmmm

How can I feed the rank straight into the blackboard?

Nvm I have an idea

[candid geyser]

Okay I got it

[tawny forge]

Hey, when restarting the editor I get LogUObjectGlobals: Warning: Failed to find object 'Class None.DestructibleMesh' when opening one of 4 BPs that inherit from another BP which is based on ACharacter. The base BP has a Skeletal Mesh, an Animation asset and a widget. The 4 "broken" derived BPs only change the Skeletal Mesh and Animation asset. I reference these BPs in an C++ array to spawn actors, the base BP works as is, the derived ones don't. If I open the full BP editor for the derived bps and hit compile it just works again. However, I have to do this step after every editor restart and in a shipping build they are also broken.

[icy dragon]

Might as well dive into C++ and make dialogue graph resembling behaviour tree.

[candid geyser]

gamer

[icy dragon]

Behaviour Tree is not fitted for dialogue system, and far difficult to manage for that purpose anyway.

[icy dragon]

I'm not kidding, you're going to shot yourself in the foot with that super hacky setup of behaviour tree.

[candid geyser]

What's the issue with it exactly?

[icy dragon]

1. It's unintuitive to setup - imagine passing that to other people serving as writers or quest designers.
2. It's hard to test, manage, and keep track of the dialogue and persisting outcome from it.

[candid geyser]

Oh I thought it was like actually game breaking

[icy dragon]

#2 can be game breaking.

[candid geyser]

Personally it's been really easy to do it this way

But I guess time will tell, I dunno

[icy dragon]

Fair enough, I won't work on your project.

Just don't cry if you stumble upon issues when you do some extensive test on it

[dusk dust]

hello. How can I sample a render target inside of blueprints? I want to apply an offset to a procedural grid of vertices based on this heightmap render target.

[candid geyser]

Don't worry, I know

[harsh coral]

Quick question...Can I use a boolean to switch one parameter on and at the same time switch another one off?
Like: "If you hide this actor, unhide that actor"?

[tight schooner]

Not sure how exactly you want to implement that, but you can always use a "not" node on a boolean to get the opposite

so that one actor does the opposite of the input boolean

[harsh coral]

I wanna use it in sequencer to hide/unhide actors.

Ok, thanks, I´ll try that.

[tight schooner]

Sorry, I'm not experienced with the sequencer

[harsh coral]

Nevermind, I might have found a different solution...

[quick grove]

guys why there isn't a node named like "Set Camera Rotation" (target is player camera manager)?

...there's only "Get Camera Rotation" but then to set that I need the "Set Camera Rotation"

if that is not possible... how can I set the rotation of the camera?

oh I found it... I just need "Set Control Rotation"

[harsh coral]

Ok, looks like I need more help still.

So, to iterate on my problem:

1. I need to Set the visibility of Object A with a boolean switch. When the boolean is true, it also needs to turn OFF the visibility of objects B and C.

2. If I connect the boolean to a NOT node, I can send that to the visibility of Object B and C, so this works.

BUT.

3. It also needs to work the other way around.

SO. If I set the visibility on Object B to ON, it needs to turn off the visibility on Object A.

Is that possible?

[wanton fiber]

I mean yeah I don't see why it wouldn't be
Just maybe instead of directly setting a bool to make it nicer you could make either an event or a function in each of the objects called something like SetVisibility with one boolean argument that takes in the visibility
You can branch to see if this boolean is true and if so tell all the other objects to SetVisibility but with a false boolean. If it isn't true, just turn off the visibility

[tawdry surge]

Event dispatcher is your friend here

[wanton fiber]

something like this on each of the objects

[tawdry surge]

That'll work but it's not very scalable

[harsh coral]

Sorry, I´m a complete beginner, how do I get the "set visibility" node?

And what do you mean that ist not very scalable?

[tawdry surge]

If you use an event dispatcher your manager BP (the one above) makes a call
The actors listen for it and handle it individually, so one might turn one and the other off.
If you decide to add more actor classes later then you can just tell them to listen for the call
The other method means you need to add a reference inside the manager for every new actor type

[harsh coral]

Ok, this is a bit too complicated already.

I´m just trying to branch a few visibility nodes now.

And then I need to get ONE node that selects if either ONE of several bools is true, it sets the condition on another branch to true.

[tawdry surge]

Flipflop

[harsh coral]

is there an OR node, that takes in more than two values?

I have three values that ALL need to set ONE value to true

Sorry, I know this is really basic stuff...:)=

[tawdry surge]

It'll return an "is A" bool which you can use with a "not" to choose if it should be true or false on A

Flipflop->set visibilityx3
Use the "is A" bool in the "new visibility" pin
Put a "not" in the mix if you want it to be ON originally but OFF when you switch it the first time

[fiery knoll]

U can add more inputs here.

[dawn stone]

I have a very slow animating video (.5sec per frame). The video is pretty long so all textures of the frames can not be loaded in at once. I want to streamload the next frame textures in the background while transition between the previews frames plays.

I tried Async Load Asset with soft object references, but they halt the frames and cause massive frame drops.

https://docs.unrealengine.com/5.0/en-US/texture-streaming-in-unreal-engine/ someone recommended Texture Streaming, which sounds perfect for my use case. Unfortunately I can not figure out how to manually tell UE to streamload the next frame texture in the background. Do you know how to do that?

[late gorge]

im having issues loading a map, it works in editor, but fails to load in a packaged version, is there any particular reason why that would happen? as far as i can tell there's no difference between the two maps and they're both loaded using the same process

[trim matrix]

Just wanted to share this somewhere but I just found out you can do Math Expressions in Blueprint. Now all the node calculations will be gone. 😄

[celest steppe]

2022 and still no way to properly define the order of categories in the details panel?

[raw orbit]

is there any way to change the order of variables in a struct created as a blueprint within ue5_

[raw orbit]

@mortal pilot what does it mean, should i just use my projects structs.h i made recently for all my structural needs

[mortal pilot]

idk, I don't do blueprints, was just testing new emoji

[raw orbit]

[celest steppe]

Can't you just drag-drop the variables into order?

if applicable, using the dot-border at the left side?

[mental swallow]

When using a delay node that waits 0,00001 seconds, will the logic that runs after that happen on the next frame? I would want to use a delay node to fix race conditions but within the same frame.

[solar bison]

How do I put in widgets inside another widget?

[uneven geode]

When you create a widget, in components list appar your other widgets

Hi, does someone know why a blueprint compile but when i package game errors make package fail? How to prevent that? i'm migrating project to ue5. Thanks

[gentle urchin]

Yes it would

You fix race conditions within the frame by organizing your logic and flow control

Make sure A is done before B

Only call functionB after A etc

[mental swallow]

okay, thanks Squize

[gentle urchin]

You can also set up function B with a precondition for function A by adding a bool to whenever function A has been executed that frame

[cursive grove]

I want to combine blueprints into a non destructive, modular way. I have problems with inheritance though

[near glen]

if I want to make some kind of planets with landscape system (digging, building) with ability to travel between those planets, is there any good solutions with at least some optimisations?

[elfin wolf]

https://www.unrealengine.com/marketplace/en-US/product/voxel-plugin-free

this is a good place to start

[tawdry surge]

@cursive grove You can do components

[flat hinge]

Hey guys - I'm pretty stuck on something, have a feeling it's not to do with my setup so much as something more systematic; would any one be able to help me with this?

#ue5-general message

[maiden wadi]

I'm not sure about the specific issue. But one thing I would recommend doing is not setting internal state from other places like you're doing with the enum and string. Call functions or pass as expose on spawn and let the widget handle it's own internal state. It saves on refactoring time later on and keeps your classes integrations much cleaner, which is really important in widgets. You could pass the enum and set into the create widget function, and just have the data ready on construct. Then all you need for that widget anywhere you use it is the CreateWidget and AddTo calls.

[flat hinge]

Yeah thank you, got a little twisted around as i'm learning widgets for the first time and this code is in the parent widget 🤣

[maiden wadi]

Yeah. 😄 I went through that a little which is why I'm pointing it out. It's fine, until it's not, and then you need that tab in a second which, but it's fine, so you copy it somewhere. Then you need it in a third place. Now you have to add something, so you go back and have to fix up all three locations. Your future self will love you.

[flat hinge]

Hehehe

I just don't get it, the break points don't hit properly, but stepping through It I can see the values are getting set correctly. Then nothing else changes them, but when they are read back out they are all set to the last index.

[maiden wadi]

Where are you reading them?

Hopefully not Init

[flat hinge]

Binding an event to on clicked in the parent widget's construct

ha

i'm an idiot

thank you

actually no that shouldn't be an issue in theory

as the buttons are created in the same event before this step

[bronze quiver]

Hey, im coming from unity and trying to understand unreal. Im getting a accessed none error, and im assuming that means that the variable does not have a reference to the other blueprint its getting called from? However they are components and they auto populate when searching for them. been messing with this for about an hr now so if anyone has any ideas just point me in the direction to look

[flat hinge]

Are you spawning anything based on conditions that might be able to fail, before trying to access the object?

For example, trying to load a level using a name that doesn't exist

[bronze quiver]

Im spawning checkpoints using an array, so one should spawn after the other. Racing game

[flat hinge]

And those checkpoints are what you are trying to read i'm guessing ?

[bronze quiver]

yes, the component under them.

[flat hinge]

So i'm far from an expert, but that set up looks... odd to me, like it is probably not doing what you think it is - however that is likely a different issue... my guess without knowing more is that the checkpoint you are trying to read did not spawn - so when you try and access it the game is going \o/

[bronze quiver]

this is the components on the checkpoint it self. idk if this matters though

[flat hinge]

Aha ok i've confirmed that it's a reading problem for sure. When we create the button it populates the text correctly - but when reading in the variable that the text is bound to, it returns the wrong value

dafuq

Just found some one with the same problem on the forums, I can't imagine this is a rare bug if so

[near glen]

thanks a lot!

[flat hinge]

I have a hunch that it's not possible to read variables out of a widget. Going to try find a way to set the event up in the widget itself and see if that works

hmm - ok scrap that, it looks like it's a case of not being able to distinguish between widget object references

Huzzah got it working

result -> don't try and read any widget variables outside of the widget

[dire shadow]

is it possible to use a setup like this and still have the rotation parented to another object

tried rotation the springarm instead of the camera with it inheriting rotation but that doesnt seem to work

or should i make another pawn thats just the camera ?

[warm terrace]

Hey okk! I know this is a old post but did you ever figure out a way to accomplish this?

Hey Guys does anyone know if its possible to set up something like this in a blueprint? https://www.youtube.com/watch?v=_YFhuuMOhVo&t=105s

I'm using a array and sine to move my grid up and down but would have a additional effector the when overlap or collision happens to effect its z position. I've tried using a capsule and collision with actor begin overlap but that didn't work. Has anyone done this before?

[glossy bane]

Does anyone know if it's impossible to edit the collision of all children of an actor by editing the parent's collision settings in runtime? The BPI event is called inside the parent BP but none of the children, either already spawned or spawned after collision is disabled inherit the new collision

[warm terrace]

I'm not familiar with that node. So I can effect collision but linking the collision to a event that effects its relative location I cant find. Like creating a volume that I can animate through a grid of cube and as the volume moves through the grid it triggers a multiply value to its z relative location.

[glossy bane]

Sorry I was actually asking a different question my bad if you though I was answering, I wouldn't know how to help since I'm a noob

[maiden wadi]

Pretty sure you just need to iterate over the attached components to set their collisions

[glossy bane]

Like inside the child BP?

[maiden wadi]

Do you want every single component to have the same collision that is parented to Tile?

[glossy bane]

I want all currently existing children of Tile parent, and all future spawns (every 0.2s theres a new child) to disable collision while a certain event is going on, and then all of them to again re-enable collision when that event ends

[undone surge]

if i want to get a random socket from a skeleton will i have to create an array of strings with the socket names or is there a better way ?

[glossy bane]

I know I can get all existing ones with get all actors of class, and add a branch on begin play in child BP to check if event is going on but I'm looking for a better way of doing it, performance-wise

[maiden wadi]

Well, if they're parented to Tile, then it's a simple matter of state control. When you spawn a new child, check Tile's collision and set it to that. When the event begins and ends, set collision to tile and iterate over all attached components or actors to set their collision.

[lone bison]

How would I spawn an actor then make the player switch to the actors camera?

[glossy bane]

Right so on child beginplay check parent's collision and set it to that, but when you say iterate do you mean using a get all actors of class kind of way to get every spawned tile?