blueprint

[novel ice]

Anyone know how can I make projectile disappear when it hits a wall?

That's my standard projectile scene

And here is a blueprint of it

now it's not disappear when it hits enemy loool

[trim matrix]

@novel ice on your box collision you gotta enable hit events

[novel ice]

Oh

It really worked, thanks!

Aaaand... how can I hit an enemy with it? Is there any option for that thing too?

OH IT WORKS NOW TOO

Thank you man!

[thorn moth]

trying to get the angle between 2 widgets inside a canvas

but the angle is always positive

?

ops

worked

ss for someone in the future: angle between widgets in 2D space

[modest gulch]

I have structure passed by reference to function. Getting values works fine, but trying to set them borks out with warning "The NameOfInput is a Read Only property and can not be modified directly.". Is there anything I can do with that?

this is how I set value:

[severe turret]

@modest gulch looks like you are replacing the struct ref when its not done that way. You are using Set Member In STRUC_GlitchTimer

[modest gulch]

then how I should do that?

If I can't set values in structure (by reference), then whole "Pass-by-reference" option is half-useless

[dawn gazelle]

It seems to work regardless, so long as "Glitch Timer" is in reference to the input structure, no?

[modest gulch]

yes, it is reference

I can check if it actually works, but warning worries me either way

[dawn gazelle]

Eg: I have this...

And the loop executes and I see 0 1 2 being printed.

[modest gulch]

and it shows correct result?

that would be great. thanks

[dawn gazelle]

If you don't want the error to show up, just connect the input directly to the set members node and it goes away 😛

[modest gulch]

lol. looks like internal getters aren't exactly polished

thanks again!

[opal ivy]

So, in order to get multithreading, I was gonna make a simple plugin that exposes a node to blueprints. But all my templates in New Plugin are missing, I just have blank

Sure

[icy dragon]

Just do it in C++ lmao

[opal ivy]

I literally have to make a node in C++ that does it

[icy dragon]

Just make one UFUNCTION with BlueprintCallable attrib in the header file, and define it in the C++ file. It'll appear in the Blueprint editors once you compile it.

[opal ivy]

My idea here is to take an event as an input and an event as an output, the input event gets called on a new thread, the output event is called when the function is complete

... why is my Visual Studio running so badly?

That's literally the entirety of C++

I mean, I'd really rather not have to do this. I pretty specifically wanted Blueprint, but Blueprint by default doesn't do what I need.

multithreading in general is a recipe for nightmares

[willow cedar]

No clue where to post this, but I added a C++ class into my project with default settings. I restarted my session and now I can't load into the project and am getting this

It starts to do it

Then says it can't be compiled. Try rebuilding from source manually.

[dawn gazelle]

But I installed turbochargers on my horses. If I don't add a perfectly slanted windshield the spoiler doesn't prevent the carriage from taking off!

[willow cedar]

Ok, how do I generate visual studio project files?

[opal ivy]

As for the multithreading becoming problematic, I should be fine because my thread is only going to add instances to instancedstaticmesh components, then post an event for the main thread to switch visibility of things

Unless there's a GOOD way to get some sort of async behavior in BP that I don't know about

[willow cedar]

Ooo, I see. I didn't know which part I was right clicking

[opal ivy]

Okay, I will use latent nodes if I can find any sort of information on using them other than "drop a delay node" that seems to do absolutely nothing

I need to be on the gamethread to add instances to ISMs?

Cuz that means even multithreading won't be a solution

[slate wasp]

wtf #blueprint seriously?

what am I even doing here

don't use the Compile button

it's not that?

[slate wasp]

yes

you need to thread the needle with ISMs

[opal ivy]

...

So, since I'm back to the drawing board here.

Delay with a duration of 0 functions as a Yield, right?

[slate wasp]

delay w/ 0 is 1 frame delay

and there's a trick of doing that x2

not sure what the trick is but it's a trick :P

[opal ivy]

so it functions as a yield

[slate wasp]

no it functions as a one frame delay

in general, don't try to do multithreading from BP

that's what c++ is for

[opal ivy]

Multithreading isn't a solution anyways

because I need to edit instances on ISMs during my async stuff

[slate wasp]

multithreading == async

do all that in c++ and you should be fine

eh!

[opal ivy]

I mean, that's not STRICTLY true, but even if we ignore being pedantic, I still can't add instances to an ISM on another thread, so there's no point

all right, dropping a delay in did nothing

I put it in my for loop that builds my chunks

apparently I'm refactoring to do this 1 tile at a time in a tick

[opal ivy]

do I have to do something special to make tick work?

no, there's some other issue. Great.

okay, I figured out what I was doing wrong.

It just will take 16 years to actually build the map out at this pace

[fresh sand]

Hey how do I refresh a widget when applying new Values in a structure? I tried this but no luck

[dawn gazelle]

Are you using binds to set the widget display values or do you set the values manually?

[fresh sand]

Manually

This is were the Values are set

[dawn gazelle]

I mean the components within the widget. Like, this is set to a bind?

[fresh sand]

Oh yeah

That I did

[opal ivy]

while it runs, this is painful for a whole different reason

[opal ivy]

I already did that.

I've got it batching 50 things per tick

It's hellaciously slow and ALSO gives terrible framerates

It doesn't give a freeze, but building the map is easily going to take 10x as long this way

[fresh sand]

Hey just letting you know I figured it out by referencing the Data from where I set it manually and taking it's values and setting them on the widget

[opal ivy]

I need to figure out building chunk by chunk I think, so only one chunk gets built in a given tick, then increase the amount of tiles it builds in that chunk

I don't suppose there's an easy way to sort actors in an array or other container by one of their variables?

[covert stirrup]

is it only possible to call a 'get player controller' inside the level blueprint, can you not do it in any other?

[narrow kelp]

should be able to do it anywhere

[covert stirrup]

I can't seem to call it in a Pawn/Gamemode/Player Controller / Actor BP

I swear I have plenty of times before, but it just doesn't let me

cant copy & paste into any other type either

[narrow kelp]

what about manually with right click

sometimes ue hates copy paste

[covert stirrup]

either, cant copy and paste and it's not in list either with context or non context

just, not available

but in the level BP, it is under Game

WAAAAAAAAAAAIT

You can't call it in Construct, but you can in Event RIGHT...that makes sense! xD

[narrow kelp]

ah

yeah

[covert stirrup]

I did think it was really strange, but there we go me being an idiot 😛

[narrow kelp]

ive done that with construct too

[covert stirrup]

ill be honest, I have never seen a construct limited node set before, not that I have noticed at least!

[opal ivy]

https://i.imgur.com/tiioJcB.png

This... is interesting.

this tells me that something about my building is pear-shaped and might actually be a large part of why it takes so long

[opal ivy]

I'm gonna have to step back from this and give it some thought or something. It's making my head hurt and pissing me off at the same time

[high ore]

I thought I had an epiphany and finally understood Blueprint Interfaces, but I'm lacking something here. I'm just trying a simple destruction message. Pressing B on the Right Oculus controller should send a pulse that is picked up on an actor that has the BPI loaded in class settings and should execute a DestroyActor. I just can't figure out the Target, which I think is what's holding this back

print string works so I know the button is working, and the actor is calling the event with just a destroy actor

[dawn gazelle]

The target is the thing that implements that interface and the code you want to run.

So if you were say, holding some "thing" in your VR hand that you want to destroy, you'd want to pass the reference to that "thing" as the target, and that "thing" needs to implement the interface and have code to destroy itself.

[opal ivy]

I need to formulate a small idea that doesn't rely upon procedural generation because this terrain is about to make me throw my PC out the window

[high ore]

Yeah, I feel a bit stuck there, the thing/actor has that code to destroy itself when it receives the pulse. But if I already put the actor in the target on the "VR hand" what's the point of the interface (the underlying issue for me here is trying to get used to thinking with interface instead of cast to)

[sudden ledge]

How did u guys master BP?

Did u watch tutorials and tried some stuff or what did ya do

[dawn gazelle]

The interface allows you to generically do something with multiple different classes. For example, I could have an "Interact" interface. With one object, that could be as simple as turning on a light switch. With another object, it could start up a bomb countdown. Maybe with an NPC it starts a conversation. It allows you to do this without casting to or knowing the exact class of that specific object.

[opal ivy]

Not a master, but I have other programming knowledge and once you take that + learning a large handful of nodes, it's pretty cake

[sudden ledge]

Hmm

[icy dragon]

watching tutorials first and A LOT of experimentations.

[sudden ledge]

Okay thanks

[high ore]

ooooohhhh maaannn, it worked. oh sweet nectar of the gods, if they could somehow encapsulate that feeling you get when you solve something

thanks @dawn gazelle the actor reference I realized in theory but now in practice finally found the 'Get Actor of Class' and put in the Actor Class I'd created. and then it finally went through. Pressing B now destroys that object

[dawn gazelle]

What if you have multiple of that actor though? Your "Get Actor of Class" will return only the first one found.

[wary tinsel]

Is it possible to Get(a copy) of an array with string and not with index?

[dawn gazelle]

Is it an array of strings?

[wary tinsel]

nope

[sudden ledge]

@dawn gazelle what did u do to learn blueprint?

[dawn gazelle]

Then you may want to consider using a Map variable instead.

[dawn gazelle]

Dived in head first.

[sudden ledge]

.

Wdym by that

[dawn gazelle]

I've been a hobbyist programmer for many many years... It was fairly straight forward for me to pick up. The more complicated aspects such as multiplayer is where I sort of started with BPs (and I'm still not super great with multiplayer)

First things I was doing in BPs was mods for Conan Exiles.

[high ore]

@dawn gazelle I see what you mean, created a few duplicates and it destroys one per press. Which is still somewhat OK for this specific prototype. I lack the node knowledge to know which inputs would be needed to solve, at least not until I get some sleep

[icy dragon]

Oh yeah, I'm also a Doom modder since 2008 (literally when I was a kid), so I'm not going full blind when started game development or Unreal Engine 4 programming.

[sudden ledge]

So liek as a begginer how would u learn blueprint

[dawn gazelle]

If you're a complete beginner in programming, you need to learn about variables, variable types, arrays, and then maybe some object oriented programming basics. If you know all that stuff already, then just learning about how UE4 works - like what different "things" are like Player Controller, Game Mode, Game Instance, Characters, Pawns, Actors, Widgets... The nodes involved you will learn over time as you interact and want to create different things.

[sharp fog]

heyo guys, can someone give me an idea of where I'm going wrong with this?

Trying to have the player being pulled towards the hook point, but from what i've read the difference should just be put into an addforce action?

Doesn't seem to be working though

addforce is connected to Event Tick

[wary tinsel]

how can I make that in c++?

[high ore]

Oh, as simple as just realizing there was a Get All actors of class node as well

[dawn gazelle]

Same sort of problem --- which of those actors is the one you want to interact with?

[high ore]

🙈

[dawn gazelle]

https://docs.unrealengine.com/en-US/ProgrammingAndScripting/ProgrammingWithCPP/UnrealArchitecture/TMap/index.html

[sudden ledge]

Any tutorials for that tho?

[high ore]

honestly all of them at once for this specific prototype, supposed to be a fun little easter egg/frustration button of destroying everything at the end of the demo. I'm working on a more traditional destruction from hit events with some vr gun

[dawn gazelle]

I couldn't recommend you any as I myself didn't take that path. I had ideas for what I wanted to do and looked around and found videos or messages in this Discord.

[sudden ledge]

Oh

[dawn gazelle]

So from those hit events you'd get a reference to the object you're hitting (probably from a line trace or an overlap or something) and that's the reference you'd want to pass into the interface.

[high ore]

Pretty sure I follow, will look at that tomorrow!

[opal ivy]

That doesn't really seem like the right solution to me.

I would think that the solution here would be a vector from the actor to the hook point

[high ore]

pretty much this would send to that specific actor correct?

[dawn gazelle]

Yep, something along those lines 🙂

[icy dragon]

https://www.unrealengine.com/en-US/onlinelearning-courses

[sharp fog]

Is that not what is going on with the self GetActorLocation and hook point?

[sudden ledge]

Thx

[sharp fog]

Admittedly I've just added a multiplication of 1500 to the vector - vector calculation result and it seems to be working

makes me think if this is a jank fix or if there is a genuinely better way to do it

[opal ivy]

it's add, not subtract

targetPosition + sourcePosition = vectorToTarget, I believe

Ah, ^^ there ya go then

likely your vector is just too small before multiplication to generate a noticable amount of force

[fast blaze]

hi all is it possible to fade out sound wich is playing now at location? can't figure out how to turn it off... it's looping thanks

[sharp fog]

yup, got it thanks 😄

[dawn gazelle]

No, you need to use something like Spawn Sound at Location which gives you a reference you can plug into the fade out node.

[rugged zephyr]

Hey, I seem to have a problem understanding a fundamental thing about unreal. Perhaps somebody wants to help me out 🙂 I just spent a few hours trying to fix a problem and the solution was really weird to me. I have a Blueprint BP_Weapon_Base and children of it representing weapons. I attach a collected weapon to the players arm (3rd person template with paragon character). When i attack the swing makes the sword go far behind me, colliding with the camera and thus making the spring arm go forward into the character. my solution: weapons should not collide with the camera. I updated the bp_weapon_base but it didn't fix anything. after a few hours I found a strange hint in the internet suggesting that I have to put the Weapon in the level again, because my bp-change will not be represented in actors that are already in the level. I tried it and it worked. Shouldn't updates in blueprints update the actors in the level that are based on them? 🤔

[severe geyser]

hey folks, working on boss waves and the number that spawns. I am trying to figure out how to work this bluepoint. The first time boss wave happens, I want it to spawn 1, the second I want it to spawn 2 and so on. Right now I have it set to my Boss Wave Difficulty is 1, Boss Difficulty Multiplier is also 1, so 1 spawns each time. If I make either 2, it will spawn 2, then 4 and so on. Any ideas?

[fossil dagger]

I'm trying to add foliage where it once was, what is the object reference for that?

I used this to remove foliage I clicked on, but I want to have foliage return but I have no idea what the reference would be.

[narrow kelp]

@rugged zephyr Not sure if this is what you're experiencing, but things dropped into the level editor are new instances of the blueprint asset, and can have instanced changes that deviate from the default

once you change a property, the editor thinks you want the new value rather than whatever is default

usually you can revert to default values by pressing the yellow arrow

in your case, maybe your collision response what overwritten on the instance

[rugged zephyr]

@narrow kelp Thank you for your help! Your suggestion seems to bring me on the right track. I still struggle a little with that thought though. If I don't change anything on an actor after putting it into the scene and then update the blueprint unreal still thinks I want the old values? Even if they are not customized to the blueprint?

[narrow kelp]

If you haven't modified the instances, they should be updated to what is on the blueprints

if not, that could be a bug or something I don't understand

[rugged zephyr]

@narrow kelp Is there a way to make all settings of an actor revert to its blueprint state? So I could be sure it was a modified property I perhaps forgot?

[narrow kelp]

You could try clicking on any of those yellow arrows you can find

other than that, you may need to just delete and replace

[rugged zephyr]

@narrow kelp Wow ok, thats irritating! It's easy to overlook a yellow arrow in one of the components, so I thought this should be a common need. Perhaps I am still thinking too much in unity-prefabs 🙂

@narrow kelp Your assumption must have been correct! I just reset everything on the faulty actor and now it works like the new one. I also found a way to reset an actor to blueprint default if anybody needs it:

@narrow kelp Thank you for your help! 🙂

[fossil dagger]

I found what I was looking for.

[narrow kelp]

@rugged zephyr cool, i didnt know about that 🙂

[rugged zephyr]

@narrow kelp Glad to be able to give something back! 🙂

[tidal venture]

This has been bothering us for a while and nobody found a solution yet:
"Cannot pass a read-only variable to a reference parameter In Effects"
This happens after accessing a TArray<..> member of an object within a blueprint. However, this value is neither const nor otherwise marked as readonly in code. We do not understand why this is flagged as readonly. We are using 4.25, this happened repeatedly, and I found no info on it online

This issue seems to be specific to members of type TArray

A workaround is to store it in a local variable (copies it) and then using the copy but that is very inconvenient

The incident occured in a widget blueprint for what it matters

[narrow kelp]

are you doing it in a for each loop?

[tidal venture]

no, if i pass it to a for each loop i can use the outputs of the loop just fine

i pass it to a function that i created, a blueprint function

the function is part of a different widget

[narrow kelp]

hmm

[narrow kelp]

maybe try a different variable name? I guess it could be reserved

not sure

[tidal venture]

has nothing to do with that

unfortunately

UPROPERTY(BlueprintReadOnly)
TArray<UEncounterEffect*> InitialEffects;

Ok actually the member is marked ReadOnly but i still dont understand the issue

How can i make a copy of this array in BP?

I really dont want to expose this to be BP-editable

[dawn gazelle]

Is this bit of code within a function itself where Encounter is also an input variable that is passed by reference?

[sterile quest]

Also trying to mentally work out how I'd go about making a system that allows the player to press "W" once that would set the ship to a certain speed and then they can either press that again (to increase the speed further) or press "S" to bring the ship to a stop (or slow it down). Basically a WW2 ship throttle system.

However I am struggling to wrap my head around how to translate the concept of speed to the transform of a object in UE4. I am thinking I'd use If (Branch) statements, but I am getting hung up on how what nodes I will need after that to set the "speed" of a ship to certain amounts.

Currently what I have and where I am stuck.

I started the more advanced throttle system (bottom of picture), and you can see the more basic one at the time.

[tidal venture]

no, but the Encounter is fetched from a value that is also an input variable passed by ref

[icy dragon]

Perhaps consider using Action Mapping that happens to share the same key. One key can be mapped into multiple action/axis.

[opal crane]

hey guys, is there way to stop rendering fog once at a certain height

[tidal venture]

how would that matter though?

[sterile quest]

Thank you, I'll give that a shot. However that doesn't answer the bulk of my question, which is where to go when figuring out how to apply speed levels to a object in UE4.

[icy dragon]

I'm not opening the UE editor, but IIRC there's a setting of it somewhere in the Exponential Height Fog.

[opal crane]

oh?

thanks man

had no clue

[dawn gazelle]

You can store your speed level as a basic integer value that is added or subtracted to based on the input and then you can have your movement done on tick and the scale value should be raised or lowered based on the integer value variable you've created. I wouldn't necessarily recommend using an inputaxis for this style of control though as Input Axis fire continuously while held.

[sterile quest]

Hmmm okay. Thank you.

[sterile quest]

Am I on the right track with using a branch?

[dawn gazelle]

Something like this

(I think)

[sterile quest]

Since there will be about 4-5 levels of speed that the player can use (not including a single level of reverse), and I am thinking I'd use the branch to check if the ship is moving and at what speed level.

[opal crane]

hey guys, is there way to stop rendering fog once at a certain height

[sterile quest]

Oh wow. Okay holy shit ya my brain is still working hard to wrap itself around how BP works on a advanced level. Since I am thinking more in a linear fashion rather then that multi way with what you showed.

[opal crane]

I tried details and there might be a way but I cant figure it out

[tidal venture]

I made a return-by-copy getter - this seems to fix the issue although I still find this whole thing odd i guess i ll just make it an internal policy to write such getters for TArray members:
UFUNCTION(BlueprintPure) TArray<UEncounterEffect*> GetInitialEffects() const { return InitialEffects; }

[violet wagon]

I want to make a custom component that instead of adding script to its actor, adds a collision box and some script attached to it. is there any way I can do this? I havent found a way to add anything like this from the 'actor component' BP.

[dawn gazelle]

You could do it as a child actor component.

[violet wagon]

good idea. thank you

[unique harness]

can you not do a child of collision box in bp?

[worthy frost]

no

[shadow saddle]

this node doesnt set the niagara system , is this ue4 bug

[ember veldt]

I have an item stored within a struct as a soft reference to a data asset, and a float. When I pass this soft reference into a widget drag payload object it isn't accessible from that payload until the asset is loaded, despite being a soft reference. Anyone have any thoughts on this?

It acts as expected and returns the soft reference if it is forced to load prior to being put within the payload

Update: Passing the soft reference alone, outside of the struct seems to work fine. Maybe a bug in how soft references within structs are handled in widget payloads?

[robust cliff]

ok anyone here have some knowledge about BP interfaces?

[willow cedar]

When dragging off an Array, I can't seem to find For Each Loop? Even when un-checking Context Sensitive, it just doesn't exist for me.

I'm working in a Widget Blueprint. Any idea why this may be?

[lost canopy]

It has happend to me once and I just went to another blueprint and created it. Then I copied the loop to the faulty blueprint. Never figured what caused it though and everything works as intended

[willow cedar]

I will try that, thank you

[willow cedar]

It worked. Wow, ok. That is a really weird glitch. Thanks a ton

[low heron]

Get an Engine Crash with the following error:

*Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000048

UE4Editor_CoreUObject *

When using (PIE), packaged works fine.

Anyway to figure out what blueprint or reference is acting up? log is of little use as it pretty mush states the same.

Error: [Callstack] 0x00007ffb700f69b8 UE4Editor-CoreUObject.dll!UnknownFunction []
Error: [Callstack] 0x00007ffb6cef2e58 UE4Editor-Engine.dll!UnknownFunction []
Error: [Callstack] 0x00007ff7767b9bda UE4Editor.exe!UnknownFunction []

[chilly jetty]

hi how can i increase the speed of a projectile when it bounces?

[maiden wadi]

@low heron You won't find much help with this. The short version is that something in the engine tried to access a null pointer in C++ somewhere. If you're using third party plugins, disable and test them maybe. If you have any C++ code, check it. If you have any C++ code, it's also advised to run the editor from the IDE, so that these crashes can be better observed. If the crash happens all the time, it is likely something specific. If it's very random and only every couple minutes, it's more likely related to a garbage collection issue.

[smoky socket]

is there a way to pass a parameter to a python script in a blueprint?

oh it's possible to use arguments when the script called in the python node with sys.argv, nice

[low heron]

Thank you for the in depth answer, managed to narrow it down to the offending BP so its just a matter of time before I find the null pointer.

[viral orchid]

How can i get if he is moving right or left?

[bright dirge]

compare float on y and the sign give you if it move right or left

[fast blaze]

thank you I'll try

[upper adder]

Is there a way to get all actors you own?

[leaden goblet]

i have a problem with projectile movement, i use it for throwing items, it works fine the first time, but if i pickup a throwed item and try to throw it again - it stays in air, doesnt move, any ideas?

[icy dragon]

Have you tried adding impulse to it?

[leaden goblet]

Im using SetVelocityInLocalSpace

yes, im doing, but as far as i can see im reversing everything

but i will check it again

as far as i understand your opinions, it should be somethin with physics and it should work to alunch it twice, so i just need to find this little mouse

[restive current]

Hello everyone !
I'm using the "Set Static Mesh" node to change a static mesh component of my pawn at runtime (for example a cube that becomes a sphere), but the problem is that the new mesh (let's say the sphere) keeps the material of the old mesh (the cube), instead of updating with the materials of the sphere I gave it in the mesh editor
Isn't there a way for my mesh to update itself with the right materials?

[slender idol]

Hey, I've got a weird bug- Every time I start the game through the editor in a new window- everything works perfectly fine however, if I start playing through the level editor viewport, my player controller keeps spawning higher and higher in the level for some reason in increments of 1000, it only resets when I play in another window again. Anyone have any idea what might cause this?

[bright dirge]

Probably because your material slots have the same name

[icy dragon]

Clear the materials after you set the mesh. It'll reset all previously set meshes with new Material Instances based on the materials predefined in the mesh.

[restive current]

I'll try both of your answers thank you
Is there an easy way to clear all materials of a mesh with BP ? Can't find a node for that (my mesh has like 20 materials)

[solid grove]

How would I spawn my player at the correct place when my player starts are in streaming levels?

which I stream in at beginplay in the gamemode

[restive current]

It worked perfectly, thanks a lot !

[leaden goblet]

ok, i just checked with actor laying on ground and repeat every 2s to change velocity and it doesnt work

it works first time, not working any other time

so its something inside o f projectile movement

[trim matrix]

Hi? Can Someone Help Me With Somethin?

[royal kraken]

I am trying to turn on and off a screen widget with the TAB key, not sure what I am doing wrong as the only thing that happens is that when I pres tab the mouse comes up. Can anyone help 🙂 I have changed the bottom visibility to hidden but no luck

[trim matrix]

@royal kraken try this.Is this what you mean?

[icy dragon]

Do you have the TextScreen var defined after creating the widget?

[royal kraken]

Brilliant thank you, I am currently doing this in the first person character, is that wrong?

[trim matrix]

it well work in first person tell me if it work for you.

[royal kraken]

Yes amazing! Thank you so much. I wasnt managing to get remove from parent as I wasnt draggin off the return value

[icy dragon]

Yes, just boil the chicken with some seasoning.

Please state right away what do you want to help, else nobody would chime in and offer solution. You're having difficulties making chicken delicious for all I know, instead of help in BP related stuff.

[trim matrix]

how can i show a widget when fps is lower than 6

[thin robin]

can someone tell me why i get this error?

[icy dragon]

You could check the delta seconds from event tick, which is basically the frametime.

The condition check would be like this:

if ( DeltaSeconds >= 1.0f / 6.0f )
{
    LowFPSWidget();
}

Of course you would "translate" that into BP nodes.

[icy dragon]

Is this a Bind function?

[trim matrix]

how can i do this in blueprint

[thin robin]

nvm it seems for some reason it had 2 of those green pins, but after deleting the return node and re creating it fixed it

[prisma stag]

Hello, I am trying to get a player/camera movement similar to that in GTA5 where you can rotate the camera around the player, then when the player starts moving forward the player moves forward relative to the camera forward rotation.

The camera movement is working but I cant get the mesh to rotate to the camera rotation when the player starts moving?

[faint pasture]

Hint: it's all between your input event nodes and Add Movement Input.

[royal kraken]

That worked brilliantly, thank you, I have tried to add in the feature so when the screen widget is on, it shows the mouse, pauses game control and then when tab is pressed again it goes back to the game. I get stuck with the mouse and screen widget and TAB doesnt take me back to game mode. Do you know why this could be happening?

[icy dragon]

In the Event Tick, compare the delta seconds with a float division node with 1 / 6 (or 0.16667). The bool result goes to a branch node that executes on Event Tick, to set visibility of the widget accordingly. You don't want to create widget on tick - it's unnecessarily expensive and can led to issues.

I can't give visualised answer, as I'm compiling C++ codes rn.

[inland spear]

yo can anyone spare two minutes, im in the programmer parlor. im having problems with getting in and out of my car

[prisma stag]

I have looked at that, however, its hard to get something such as a timeline to work properly as I dont know how often the execution pin is activated for the input event.

[faint pasture]

This should absolutely not require a timeline. Exactly what part of it are you stuck on?

You need to decouple ControlRotation from the Capsule rotation if you haven't done so yet

[icy dragon]

Set Input Mode To Game and UI instead of UI only, and typically you want to do the check in the widget BP as well, with OnKey Pressed event.

[trim matrix]

idk why it happening

[inland spear]

why is my player not spawning at the location im telling it to spawn at when i get out of the car?

[prisma stag]

Hm. I was trying to make the rotation of the mesh to the desired rotation to be smooth, let me just set the rotation and see if that works.

I was also mistaken and did it after the movement input.

[icy dragon]

That happened because the widget basically fed your input, and the widget itself have no idea what the Tab button does.

[errant cradle]

Hi, does anyone know if there is a limit to the length of variables names and function names ?

[trim matrix]

is this line of code can show widget when fps is lower than 6 fps

[faint pasture]

@prisma stag just think of it this way. You have 2 rotations, the direction you're looking, and the direction you're moving or last moved.

[royal kraken]

Arh I see, Thanks, that first solution worked, thanks, I will now a button to come out for the widget, see how I get on, thanks again 🙂

[icy dragon]

Made a small oopsie there, it should be larger than.

The larger the delta second/frametime, the lower the FPS is.

[prisma stag]

Correct. So I have cleaned up the code, and have a SetWorldRotation for the mesh after the inputaxis, then add movement input. Now the mesh rotates properly but it is locked to the rotation of the camera. How do I only set that if the character is moving forward? Should I add a W key event and do on pressed, then do SetWorldRotation there?

[trim matrix]

i can't understant anything

lol

[icy dragon]

No, but do you really want to have variables as long as Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch?

(it's a legit town name in Wales btw)

[errant cradle]

lol

i have something like assetsServerFilesDownloadGenerate

[icy dragon]

It's a simple concept.
Frames per second : how many frames you get in one second
Frametime: how many milisecond it took to get a new frame

[prisma stag]

Is this ok to do with the tick event?

[warped cairn]

So I may not be fully understanding how to add input actions... I've went to Editor > Project Settings > Engine > Input then added an action mapping under Bindings. But I can't get it to show in my blueprint, any ideas what I am doing wrong?

[prisma stag]

This is only for the player, and it is just grabbing the z rotation of the players camera.

[trim matrix]

ok

[prisma stag]

Oh. Ill look into orient rotation to movement. Im trying to get the player mesh to rotate to the direction the camera is facing the the player is moving forward.

[trim matrix]

did i want to do like this @icy dragon

[icy dragon]

...it's a generalisation, so that you can translate it into BP.

I'm compiling some C++ code, so I can't open the editor right now to give visual example of the BP.

[prisma stag]

Thats what I thought but somehow mine got messed up I guess 🤷‍♂️ Let me see what is different.

[trim matrix]

ok

i can't understant anything idk anything about the coding stuff

ok

i well do it later

[prisma stag]

So there was literally just a tick box for orient rotation to movement then you can adjust the speed 🤦‍♂️ however when moving it also rotates the camera.

[inland spear]

can anyone help me out with a simple problem?

ive used the "destory actor" node when i get into my car, but when i get out what would i use to get him to respawn

[faint pasture]

I wouldn't destroy it, or just spawn him again. Depends on your design.

@prisma stag Yeah start with the 3rd person project and look how it's set up. You should NOT be rotating the mesh inside the capsule.

You would do strafing and looking left or right in animation

[prisma stag]

I got it. There were a multitude of settings already in the Character Movement component that can do what I wanted.

[faint pasture]

It'll all depend on how you want it to behave. In our project, rotation is oriented to movement when sprinting, but when walking or aiming down sights, rotation is locked to the AIM direction. It depends on if you want backwards motion to have the character running toward the camera or running backwards

[thin robin]

can someone tell me why these aren't working?

[sterile quest]

The suggestion you gave did give me the "level" based speed that I was looking for (as in I only have to press the "W" key once for it to hold a speed). However there is no change in speed variation past the first speed level.
From what I know about Add Movement Input, the scale value can only work between the ranges of -1 to +1
So I am thinking that I'd place some sort of max speed variable after the Add Movement Input node.

Is this the right way to go about it however?

[dawn gazelle]

The speed scale value should be set to a value < 1. Base the scale against how many steps you want - so if you're looking for 5 steps, set it to 0.2 so when you are at max speed it'll be 1. If you're looking for 3 steps, set it to .33 etc.

[upper adder]

What are those orange nodes for? Didn't quite get that..

[dawn gazelle]

If you've made a blueprint a child of another blueprint, those will call the functionality in the parent.

Without the parent node, if you have the begin play (or other events/functions) in the child, then the child's version will completely overwrite the parent's.

[shadow saddle]

is there a progress bar fill option,instead of left to right/right to left ,top to down/down to top option , u can get a square box rotation countdown

[upper adder]

ok

ah yes that makes sence

now

[novel ice]

Need help with projectiles... again!

Here is simple projectile's blueprint

And it's scene

So, there is a character which spawns projectiles

Using the controller, here's a function

AttackLocation is here

In a character BP scene

When character attacks, projectile just disappears, like they hit something already!

Actor destroys, emitter spawns and all of that

Here is a Box's collision settings

What should I do to make them spawn properly and disappear after they hit something?

Please help

[inland spear]

has anyone got a mic that can help me out with my car blueprint. nothing complex i promise

[warped cairn]

The event "create waypoint action" won't show when I search it in my widget

[inland spear]

im in programmer parlor

[warped cairn]

Is there anything else I am missing to get these events to show in blueprints?

[inland spear]

whats this for?

[warped cairn]

Literally just trying to make a custom event triggered when I press a key

[inland spear]

so u want that to appear in ur blueprint?

go to ur blueprints click tab and type in the name of the ones u want to put in, so for instance type in jump

[warped cairn]

No you're missing the point, it won't show in my blueprint....

[warped cairn]

omg never mind I was putting it in the wrong blueprint, sorry

[wild trout]

Hello! Does blueprint interfaces works between two widgets?

[warped cairn]

I miss actual words for programming...

[dawn gazelle]

Sure, so long as they both can reference one another somehow.

[severe turret]

they dont need to really. They can just check for implementation of the interface

well technically that is reffing each other but you know what I mean 🙂

[wild trout]

Hm, I have WidgetA with the interface implemented and WidgetB(that is a component inside WidgetA) that have two buttons. Inside WidgetB with the buttons I get a reference to WidgetA and use it for the event messaging. But it doesnt work. 😦

[severe turret]

you overcomplicated that I think

[severe turret]

when you create widget. Simply store a variable with the reference. If you want to access a Widget inside another Widget, use it's child structure to get it. If you want to interface it because it might be dynamically placed in variable structures, then the second widget should store a value to itself on construct.

[wild trout]

hmmmm, what do you mean that the second widget should store a value to itself?

Let me phrase it a bit different. I have two widgets - Main and Welcome Page. The Main one have the Welcome page as a child.

Inside the Welcome Page are two buttons. So I made a blueprint interface with two functions/events that I implemented inside the Main widget. How do I get the buttons that are inside the Welcome Page call the events inside the Main?

Probably I completely misunderstand how blueprint interfaces works.

[summer bolt]

Why not just put an event that works and then make that event run your custom one?

[novel ice]

pleeease?

i really don't know what to do

[severe turret]

well you start with a question

[gusty shuttle]

Hey folks, need a bit of assistance with rotation. I'm trying to get my flipbook to point where the laser hits. It kind of is for floors and ceilings but not for walls.

Don't mind the speghetti

the flipbook is pointing xforward

[fading wren]

hello, i am trying to make a ball to change direction of going afer Begin Overlap with wall collision. So i make wall cast to custom event in ball blueprint. I tried a lot of methods AddActorRotation, SetActorTransforms, etc. but the main problem is, that all this work only one thick, and then return to previous position. I record a video, to show a problem

here is what i use to rotate ball by wall for now

this is wall blueprnt

how to make ball go to another direction after hit a wall. Like in video, but nor for one thick 😆

[gusty shuttle]

@trim matrix Aye, I ended up finding a fix online. Works like a charm

LOL

It def needs cleanup haha

https://tenor.com/view/fsm-spaghetti-flying-spaghetti-monster-pastafarian-gif-13529138

[fading wren]

@trim matrix @gusty shuttle do you know answer on my question by chance 🙂 ?

[faint pasture]

@fading wren Start with how you're moving the ball. You just doing your own movement?

[gusty shuttle]

Do you want it to bounce off the wall?

[faint pasture]

If you're just doing your own movement on tick, you presumably have a velocity vector. When it hits something, mirror the velocity vector using the normal of the hit. Why aren't you using the Projectile Movement Component though?

[fading wren]

yeah, and start moving to another direction, like ricochet

[faint pasture]

@fading wren you have a velocity vector somewhere right?

[fading wren]

because i am noob in blueprnt

[fading wren]

how to check it

[faint pasture]

@fading wren show the part of the code where you move the actor

[gusty shuttle]

Add an impulse on impact normal?

[faint pasture]

No just lemme handle it lol

[gusty shuttle]

Lol deal

[fading wren]

ball is just placeholder, i will make 3d later, so ball is character , if i understand correctly your question

[faint pasture]

So are you using the character movement component? What is actually doing the moving

[fading wren]

here you go

i just made blueprint that allow ball

aka character

move whith inertia

i am using Add Movement Input

what do you mean

[faint pasture]

The character movement component already has inertia, mess with the settings on that instead of whatever hacky inertia emulation you're doing there.

[fading wren]

what is pawn ? i thought it just name of "character"

[royal kraken]

For some reason I cant seem to hide my crosshair when I click on a button via widget, I have gone to the widget, added a character variable and add a custom event of hide crosshair, is there anyreason this may be happening.

[faint pasture]

You're basically trying to simulate inertia by modifying the inputs instead of just changing the setting in the character movement component

[fading wren]

seriously? where ?

[faint pasture]

Character is a subclass of Pawn which is a subclass of actor

[faint pasture]

Dig in the character movement component settings, there are settings to control friction etc

I saw one guy who was trying to make a kart racer using the character movement component LOL

[fading wren]

it will be character in future

[faint pasture]

@fading wren what is your intended end result? How do you want your player controlled object to behave?

[fading wren]

it just a character that will runaway from enemies fighting with inertia

i cant see any inertia here. Does it name something else ?

[faint pasture]

Mess with the friction settings.

You basically kind of want something like somebody running on ice right

[fading wren]

correct!

looool

i spent so much time to make custom blueprint

https://tenor.com/view/hide-the-pain-harold-smile-pain-looking-gif-17739676

ok

so what shoul i do now

what shoul i do

to move a character ?

it will be animated character in future

@faint pasture i still better not use "character"

[faint pasture]

@fading wren now all you need to do is solve the question of bouncing.

If you want them to bounce off walls

I would somehow detect the collision, then apply an impulse in the impact normal direction

[fading wren]

does the node call impulse ?

[faint pasture]

Does what node?

[fading wren]

" impulse in the impact normal direction" i thought it is node name

[wooden mural]

Hi! Is it possible to disable the input of the player, but not of the player controller? Thanks in advance (:

In a widget, I want to disable the input for the player (running, attacking, etc.) but I want to use an axis mapping to move the widget

[inland spear]

quick question here

what node is this

[faint pasture]

@fading wren no, I'm just saying you need to add an impulse whenever you detect a collision with a wall, and the impulse should be in the impact normal Direction

[inland spear]

thanks bro

[faint pasture]

Add lol

[wooden mural]

Oh right, thanks so much!

[fading wren]

example of impulse ?

sorry not sure if i understad you

[inland spear]

Adriel you free pretty sure u helped me earlier. im close to completeting it but got another problem...

[gentle urchin]

Event dispatcher / binding i think?

[crude sun]

Hey guys I have a super simple problem that I have no idea how to solve

it's about casting

I'm trying to cast to that Door to the right

but what am I supposed to put in the object?

Is there any way I can get ahold of this?

Alright

Okay

Any simple method for getting ahold of this?

I just want to activate a custom function on that door

I'm not asking for the best most perfect solution

fair enough

I guess I'll read the documentation

[faint pasture]

@crude sun Just think of it this way. You're playing your game, and press the DoorOpen key. Which door should open? The one you're aiming at, the one closest to the character, a specific door across the map, what?

[crude sun]

tbh this is a one time thing

it's exclusive to the tutorial

after a target is destroyed, that door opens

no

I'm creating a tutorial level

[faint pasture]

I'm guessing doors and targets are going to be a thing elsewhere in the game right?

[crude sun]

and in that tutorial I need a door to open after the player destroys a specfic target

[crude sun]

actually no

Just this once

[faint pasture]

Just get actor of class Door and call the open event on it from the destroyed actor

if it's a one-time thing

[crude sun]

how do I get actor of class Door in blueprint?

[faint pasture]

right click, type in "get actor of class"

start there lol

[crude sun]

damn

[faint pasture]

get actor returns the first restult, get actors returns all

if you know you only have 1 door then just get actor

[crude sun]

alright that makes sense

[thin robin]

any idea how to fix this so that when my ammo reaches zero it doesn't start printing ammo string as negative value?

[crude sun]

yo thanks a lot for your advice and patience @trim matrix and @faint pasture

[unique harness]

why are you storing ammo as a float instead of int?

[fading wren]

@faint pasture could SetActorTransforms be impulse ?

[severe turret]

I would add a return node after that print string too

[thin robin]

i use ammo bar so it shows like these bullet icons that decrease and i also want to show the ammo as number so i also need to convert float to int somehow @unique harness

[fading wren]

@faint pasture how can i make an impulse ?

[thin robin]

so it looks like this @unique harness

anyway the < 0 worked fine thanks, but how can i convert the float to string so that it shows as int?

[unique harness]

just change the float to an int

[fading wren]

@faint pasture ok, got it! thanks

[thin robin]

mm if i change that then it screws up all the calculations of the ammo

[tough cipher]

does anyone know how to pull game objects towards the center of an actor kinda like a tornado

[thin robin]

hmm okay

[tough cipher]

thanks

[thin robin]

@unique harness this worked!

[unique harness]

Awesome!

[dreamy gulch]

Hey, i have a linetrace spawn, that uses the mouses for rotation input, however the camera also moves while doing this. I tested it in the fpp template, and set a varibale that stopped camera while using it, but im using als and the camera input is handled by a parent base character bp, and the 'portal' spawn is in the child character bp. Pictures below, esentially id like to know the correct set up to use a 'get' variable from different blueprints

this is how the fpp looks

this is the als one, this movement input is inside the base character, and the variable im trying to get is in the child character bp

[faint pasture]

if its physics, just add force on tick towards teh center and with some tangential component

[dreamy gulch]

This about my camera question?

[faint pasture]

no, tornado

not yours, the other guy

[dreamy gulch]

thank god because i got so confused

[faint pasture]

what do you mean by linetrace spawn?

[dreamy gulch]

i spawn a portal using linetrace

[faint pasture]

AI will not have anything to do with the input events

[sterile quest]

Hmmm, okay, but how would I saw a max speed? Since different ships will have set max speeds. Like if I wanted to eventually set a max Nautical miles up, I'd need to be able to set different top speeds and using the scale value wouldn't (I don't believe) allow me to do that.

[dreamy gulch]

Theyre not ai, als has a base character that handles 90% of the characters functions, the child actor handles the rest, the overlays and so on, they are the same character but two bps, idk. Just dont know how to get variables from a different blueprint

[faint pasture]

That sounds completely screwed up, what EXACTLY are you trying to do?

[faint pasture]

I couldn't follow your earlier messages, what exactly are you trying to do?

[sterile quest]

One sec, I'll grab you a message link

[dreamy gulch]

This is from \first person template, with the same code, i can stop the camera moving, while i use the mouse to rotate a spawned object. Because this code, and the code to spawn the object are in the same bp, the 'get using portal' appears and plugs into the condition node no issue but...

[sterile quest]

#blueprint message
@faint pasture

That's the start of it.

[dreamy gulch]

Because this code you see here, is part of base character bp, the parent of animman character bp with the spawn code in it, the get variable node appears this way, because its a variable in a different bp, im wondering how to connect this variable

[novel ice]

HOW TO MAKE A FUCKIN PROJECTILEEEEEE HOWWWWWWWW

AAAAAAAAAAAAAAAH

[royal kraken]

i have added a widget to my scene with some basic buttons, they have roll over tints but when I play the game they dont seem to be interactive at all, can anyone help

[faint pasture]

@sterile quest Have an Int SpeedLevel. Pressing W and S add or subtract Speedlevel. That should be simple enough.

Have a float MaxSpeed. This can vary by ship or whatever.

Have a float CurrentDesiredSpeed. Whenever you change SpeedLevel, set CurrentDesiredSpeed = MaxSpeed x SpeedLevel / NumberOfSpeedLevels

Then however you're doing movement, implement the CurrentDesiredSpeed

Could be as simple as setting
Location = Location + ForwardVector x CurrentDesiredSpeed / TimeStep

[sterile quest]

I am using Add Movement Input.

The user I replied to provided more or less what you described there, but the issue is that it limits my top speed (from what I've been able to tell).

[unique harness]

create an actor and add a projectile movement component

[novel ice]

i tried so much man

[thin robin]

how do you remove these 2 from the return node so its just blank?

nvm found it

[dreamy gulch]

Got it, few methods from what i saw but this worked fine, using this you can use variables from other blueprints

[novel ice]

I TRIED SO MANY TIMES

I DON'T KNOW WHY IT'S NOT WORKINGGGGG

and i feel soooo stupid

[unique harness]

That doesn't give much context to help you debug it

[novel ice]

#blueprint message

[dreamy gulch]

copy paste the one from fpp gamemode, change the mesh if you want, make a new input mapping for the firing?

[thin robin]

what does this error even mean?

[faint pasture]

Calm down and start just by looking at the first person shooter template.

[faint pasture]

It's somewhere in your color binding and not in the function you just showed

you probably had color bound to something then renamed the variable or whatever

[novel ice]

The joke is I don't need a bouncing projectile. I want to do a projectile which just flies and destroys when it hits wall/actor

[thin robin]

i removed the color bind thing or atleast i thought i did

[unique harness]

so you're using overlap functionality but also using simulation generates hit

pick one

[thin robin]

works now

[novel ice]

This is so simple but for unknown it doesn't work...

[thin robin]

can i make another bind for same thing (text) ?

and use both?

[sharp dew]

Why is it showing the wrong widget? I have no idea what's going on.

[novel ice]

I picked one, I used Event Hit, I used just On Component Box Hit, I used...

uhhhhhhhhhhhhhhhhhh

[sharp dew]

I'm literally creating a Dialogue2 widget, but it's showing the Dialogue1 widget

[novel ice]

THE BEST RESULT I AM GETTING IS when i am moving, projectile can hit me

and it pushes me

if opposite, they will go through me

and through walls

[sterile quest]

@faint pasture

[faint pasture]

@sterile quest I'd just use a clamp int node

min 0, max max speed level

[sterile quest]

Instead of the select?

[faint pasture]

ya

[sterile quest]

select int*

Okay.

[faint pasture]

assuming you have some sort of movement component, that 2nd bit should work. Using floating pawn movement?

[unique harness]

show the collision settings for the box

[sterile quest]

Nope. I am using Add Movement Input.

[faint pasture]

That is probably doing nothing if there's nothing to consume it

[sterile quest]

Is there a more appropriate node for what I am trying to achieve?

[faint pasture]

SOMETHING has to do the actual moving

start with floating pawn movement

or just write your own system, or use physics

[sterile quest]

I don't know how to do CPP, so writing my own is a no go. Would have to hire someone to do that, but alas don't have the funds for such a thing.

I am using the Ocean project for my water system.

Since Epic still hasn't really gotten very much with their inhouse water system.

[thin robin]

im trying to make the ammo number string red color when i have only less than 30 ammo left, indicating ammo is almost empty but i don't understand how to do it and this keeps giving me error

[severe turret]

It's not really Epic's responsibility to make a water system. They gave us to tools to make them. But Shaderbits' water system is fine. The ocean plugin isn't being maintained anymore though right?

[severe turret]

@thin robin Rich Text. Check it out for widget text.

[unique harness]

You said you switched to hit but hit events are off there

[novel ice]

types hello when it hits me and while i am moving

[severe turret]

error/warnings is always a bad sign

[thin robin]

@severe turret does it need picture because the text looks gibberish with the rich text?

[novel ice]

Nah, those are Anim Blueprint ones

[sterile quest]

I am confused because the ship does move. So I am not sure what you mean by this.

[severe turret]

@thin robin no. It's called Rich "TEXT". The clue is in the name :/

[novel ice]

And they are still working fine

[sterile quest]

It's just that there is no way for me to control the top speed of said ship, or ships.

[severe turret]

@thin robin https://docs.unrealengine.com/en-US/InteractiveExperiences/UMG/UserGuide/UMGRichTextBlock/index.html

[thin robin]

im pretty sure thats not what im looking for @severe turret but thanks though

[novel ice]

just standing and no a goddamn thing happens

i am so lost

[unique harness]

Show your code for what's supposed to happen on hit

[severe turret]

Is this a Projectile Movement Component?

[novel ice]

just print hello string

#blueprint message

literally

[unique harness]

turn on Simulation Generates Hit Events

in the box collision settings

[dawn gazelle]

Switch your ammo variable to an integer as it will save you headache later on. You may one day start checking if ammo == 0 and it won't work as expected because you have 0.001 ammo or something silly. There really is no sense is storing it as a float. You can convert an int into a float when necessary.

I'm assuming the Get Text 0 function you're using is a bind to a text field that would've been generated when you set up the field as a bind. You can't add additional return values as it's only expecting the text output, not the color. You can have this function call another function to update the color if you so desired by using the "Set Color and Opacity" node with reference to your text field:

[novel ice]

already did

[unique harness]

now switch collision settings to BlockAll

[faint pasture]

Show the ship components

[novel ice]

no effect

[unique harness]

what is the object type set to?

[thin robin]

@dawn gazelle thanks

[novel ice]

actor

[unique harness]

that ObjectType

[novel ice]

oh

well worlddynamic

oh wait

[novel ice]

worldstatic

[unique harness]

so now change it to custom and set it to world dynamic

[faint pasture]

There it is...

[novel ice]

anything I should change here?

[faint pasture]

@sterile quest That component is what is doing the moving

[severe turret]

you should really read more documentation. The projectile movement component system is straight up easy if you read first

[faint pasture]

add movement input just talks to it

[unique harness]

no, now show player mesh collision settings

[unique harness]

open the presets

[unique harness]

try turning on hit events there too

[novel ice]

no result

[unique harness]

sec

show projectile spawn logic

[novel ice]

#blueprint message

[unique harness]

not the old stuff, take new screenshots please

[novel ice]

spawn logic is untouched

it's the same

spawns from a controller, gets scene position from a mesh

and it spawns fine

i really should rest now

thanks

this shit takes my time for a day or two

[severe turret]

thats because you never read the documentation

and now people are wasting their time helping you decipher what gibberish code you wrote

[novel ice]

Can you send me the link please? I couldn't find it

[severe turret]

if you can't find it, I ain't googling it for you. Thats the first thing you learn in any of this. How to google for yourself.

[novel ice]

if you can't help just don't say anything but "read documentation"
i asked you for it but i can't see any help from you still

https://docs.unrealengine.com/en-US/BlueprintAPI/Game/Components/ProjectileMovement/index.html
the only thing i found is this

and i don't see anything that can help me

[severe turret]

Sorry if I sound like I'm picking on you. I'm not. But before others can help you, its best to help yourself. Learning how to use a projectile movement component is one of the easiest things to do. It's been covered many times in youtube videos and has documentation for it. But if you don't understand how the system works, you will be guessing until you get it right. And other people wasting time on helping you guess isn't productive for anyone.

[fading wren]

@tulip berry unfortunately any of size of friction in any setting that name as Friction doesnt have influence at all. What could i do wrong ?

[faint pasture]

@fading wren Have you tried setting ground friction to near 0?

[faint pasture]

@fading wren and how does it behave?

also turn down the accelerations

[fading wren]

where

yes i am walking

here ?

[faint pasture]

turn max acceleration down

try 200 to start

idk why they have a friction and acceleration setting seperatly but whatevs

[fading wren]

yeaaah

it works!

thanks!

[fading wren]

thanks for help

[faint pasture]

Maybe friction only comes into play when landing with motion, idk

seems like it should be rolled into 1 setting

[fading wren]

so what is acceleration ?

i mean, i can see there is a speed here

[dawn gazelle]

It's how fast something increases (or decreases) its speed up to the maximum movement speed.

[fading wren]

ah so it like speed from min to max speed

great

thanks for help 🙂

[sharp dew]

When I imported my tent model, the textures all just turned white. Does anyone know why this is happening?

^This is what the model is supposed to look like

[faint pasture]

It depends on how your mats are set up and your export/import settings, but in general, materials don't export or import

[sterile quest]

Oh okay. I thought you meant the BP node. Not the component.

[limber finch]

Hey guys, I have a Level Sequencer that is possessing an actor in my Persistent Level, is there any way to unpossess the actor after I'm done using the sequence? It's not working no matter what I do.

[severe turret]

use the event track and have a blueprint manage it. I find that is the best solution to many problems with sequencer so having a BP_SequenceEventMgr object in the level is great.

[half sail]

hey guys, anybody know how to check if the game is running in simulate mode?

[fading wren]

i added an impulse, it defenetly reacts, i am using print string to check

but no impact at all

did i make it correct ?

[half sail]

nvm, solved

[obsidian moon]

Guys

[faint pasture]

@fading wren that is a very tiny impulse. Try some stupidly large number to begin with

[fading wren]

ok

[obsidian moon]

I'm running into a very strange situation that doesn't seem normal

I have a vehicle pawn which is a character

its a very simple character with just a static mesh instead of skeletal

its in flying movement mode and its top down X/Y movement

all simple stuff

I've added a box collision to it

[faint pasture]

@obsidian moon why exactly are you building this off of a character class? That sounds like a horrible idea

[obsidian moon]

and set the collision to vehicle with ignore all except vehicle

[fading wren]

yes, it works! thanks!

[obsidian moon]

and for whatever reason its just not firing hits

[severe turret]

@faint pasture why is it a horrible idea?

[obsidian moon]

its not a horrible idea

i've done dozens like this

its just a character with character movment

[faint pasture]

Because the character class implies certain things like using am upright capsule for collision, movement that is well defined by the character movement component, other things like that.

[severe turret]

that makes no difference. The camera is the object that is top down

[obsidian moon]

☝️

[severe turret]

the world doesn't move.

[obsidian moon]

☝️

[severe turret]

@obsidian moon chances are it's just your collision channels.

[narrow kelp]

Characters have a bunch of things on them that might not be applicable to vehicles

[obsidian moon]

its not a vehicle

[severe turret]

@narrow kelp the word vehicle doesnt mean an actual vehicle in this case

[obsidian moon]

it's a character with a vehicle mesh

its a mobile game

very very basic

[narrow kelp]

gotcha

[faint pasture]

Is its collision still well defined by a capsule or are you adding extraneous collision to it?

[obsidian moon]

character movement does everything needed

[wind sequoia]

yes but you can modify it as I use character class cause I dont feel like making my own vehicle movement component in NP for mulitiplayer

[faint pasture]

Because the CMC is not going to play well with anything besides a capsule

[wind sequoia]

not true

[severe turret]

the capsule isn't the issue here. It's a collision detection for a custom box being used as collision

[obsidian moon]

a character class can have any collision component added to it

[severe turret]

it might collide with the character capsule but then its about the channels and collision ignores being setup right

[obsidian moon]

and its a flying movement

gravity isn't an issue here

its about a box collider not firing hits off itself

[severe turret]

I really wouldn't even use a character movement component for this. If you are just moving on X/Y its probably a bloated component for task.

[obsidian moon]

vehicle on two or more characters set to block vehicle aren't firing events

@severe turret i get you

[severe turret]

did you setup any custom collision channels?

[obsidian moon]

but there is no need to write something from scratch here

this isn't about being perfect or over optomizing

[severe turret]

well sure. Plus if I was prototyping I might even use that method. But its more optimal to just lerp locations manually without all that stuff. The only thing it would offer is the replication

[obsidian moon]

its getting max performance on all andriod platforms

no need to add additional "work overhead"

behavior with the character is perfect

its not the issue here

[sterile quest]

@faint pasture Sorry it got lost in all the messages, but what would you suggest I do to set a max speed? Set it in the FloatingPawnMovement?

(Please tag me, as I have to jet for a bit)

[obsidian moon]

@severe turret so any ideas?

[severe turret]

I would ensure your collision channels are setup right really. If you want to you can create a custom collision channel and use that. But without seeing your project I wouldn't know. However my wife just brought me Burritos so I'm going away to scoff them and start boiling tomorrow's poop.

[obsidian moon]

I feel like it’s a bug

sorry for the pic quality

I've tried the dynamic channel, vehicle channel and even created my own

and don't worry the "pawn" channel is ignoring "vehicle"

but I think the capsule being inside the box is causing some wonky behavior

its 4.26.2 btw

[narrow kelp]

I could be totally wrong, but I believe UE doesn't like multiple collision bodies with different properties on them

it might be wielding them together or ignoring them

[prisma stag]

Hello, for some reason the player stands on top of the box collision for the static mesh below? I have tried setting the collision settings of the box to no collision but no change.

[faint pasture]

@sterile quest I haven't dug into floating pawn movement but I'm sure it's got a speed value somewhere.

[obsidian moon]

@narrow kelp I think you are right

I think its ignoring them in this case

But I've moved the box collision away from the capsule and its the same result

I find this strange as my previous projects have been VR

and I have overlap spheres in the controllers a capsule collision for the character and seperate sphere collision for HMD wall detection etc

I just find this very strange

[faint pasture]

@obsidian moon does the capsule fire hit events?

[obsidian moon]

Yes

the capsule is fine

its just the box collision doesn't do overlaps or hits at all

[faint pasture]

And box is an immediate child of capsule?

[obsidian moon]

well it was a mesh child

[prisma stag]

It is just set to the normal Pawn preset.

[obsidian moon]

but i can move it to capsule child

[narrow kelp]

you could try making the collision settings match

[white lynx]

is there a way to have an menu anchor-created widget close itself from the blueprint? running RemoveFromParent() doesn't do anything since it was created by a menu anchor

[obsidian moon]

yeah the box collides with the pawn channel

but not with itself

thats the issue here

it won't hit its own channel

yeah so if i set it to pawn it kinda does what i need

the capsule will fire hit events on the box

but the box ignores itself

[faint pasture]

What do you mean the box ignores itself or it ignores another box?

[obsidian moon]

even though the box is a pawn channel collider

yes this is very easy to test

just do a template project add a box collision to a template character set it to pawn and ingore all except pawn

print on overlap and hit off the box

the box will not fire events from two collisions between itself

only if the other component = player capsule

and I find this strange

again I've done two VR projects now and have characters with multiple collision components firing overlap and hit events

[faint pasture]

I don't know the CMC that well but I'm guessing it only sweeps the capsule

[white lynx]

CMC doesn't care about the mesh

it's only concerned about the capsule

[obsidian moon]

hmm

I guess teleport controllers sweep colliders

and hmd camera movement sweeps colliders

wait a second

this can't be true

I have a belt inventory that works off overlaps/hits

that is attached to a relatitive position to the character mesh

it detects overlaps and hits fine

but again thats 4.24.3

I've been working with the engine a long time and I just can't accept that a character class doens't support any collision other than the player capsule because it uses the CMC

[white lynx]

it's actually amazing that it does that

but yeah I understand the limitations that that entails

[obsidian moon]

your serious?

but i have previous projects that this isn't the case?

well

i guess its not the cmc moving the actor though

its a tracked motion controller

[trim matrix]

yo how come the instanced static mesh only collides with the player

[prisma stag]

Neither worked.

The foot placement on a normal static mesh is fine but only when on a collision box or sphere is it messed up.

[sharp dew]

I'm trying to make this AI follow me, but it's not following. I have a NavMeshBoundsVolume in the level. Anyone know what's happening?

[white lynx]

have you tried asking nicely?

[hallow imp]

Can't seem to find "?IsValid" node in the blueprint search

[white lynx]

isn't that node a macro?

[trim matrix]

does any1 know how to reverse a linetrace

for example linetrace 1 goes from 0 to 10
and linetrace 2 goes from 10 to 0

[hallow imp]

It was to check, if the Reference to the character class is valid or not.... So I can't seem to find that specific "?is valid" node

[white lynx]

just switch the start and end location @trim matrix ?

[trim matrix]

i tried but to wont work

it still wont show up behind the wall

[white lynx]

that function does the same thing

just plug it into an If Statement

[hallow imp]

@white lynx if that node is a macro, how to access it?

[trim matrix]

liek this

when i shoot the linetrace goes to the wall hits the wall

[white lynx]

that IsValid pure function that you see in the image does the same thing as the macro

[late cave]

How do I debug an Editor Utility Blueprint? Breakpoints don't seem to work...

oh, wait... they do if I hit "simulate" 🤣

[obsidian moon]

@white lynx i ran across a trell on ue4

talks about supporting box collision for non walking pawns in later cmc implimentation

looks like thats been there a while though

like 5 versions now

so yeah

appears your correct in that cmc only updates the sweep checks with the capsule response

it brings all meshes/collsions objects etc

[trim matrix]

can i start a new linetrace a few inches of where i hit the last linetrace ?

[obsidian moon]

it just doesn't respond against them only if they hit the capsule

[bitter ingot]

so i have created a vaulting/climbing mechanic, but my camera is of course always attached to the capsule so my camera will be at the actual location where the climbing anim is going but the mesh isnt there. has anyone ever dealt with that?

[narrow kelp]

@bitter ingot you need to develop a system for moving your camera

[bitter ingot]

Anything more in depth to that?

Like what should I even attach the camera to?

[narrow kelp]

I guess it depends on if this is the only time you'll ever have to move your camera

I've used a a cue of control objects that each specify world space, local space, offsets, etc

that pop when they're done

that has worked pretty well for me, since I can't anticipate what kind of stuff I'll need to add

for you, maybe a wall actor reference or something is all you need

[bitter ingot]

So the main problem I don't really get around is when I teleported the camera will always be up there with the capsule for at least one frame, so I guess I should attach it to something different

I already tried attaching it to the mesh but of course the mesh is attached to the capsule and only the climb anim makes it look like the char is there

[narrow kelp]

If you just want your camera to always follow the mesh, look into skeletal mesh sockets

[bitter ingot]

The problem is then the camera gets very jiggly because of the movement of the bone attached to

[white lynx]

Is there a way to Place UI lines in the UMG Editor like In Photoshop using the Ruler feature?

[narrow kelp]

@bitter ingot There's lots of ways to get around that. You can use a spring arm, set the camera position to some kind of average, or animate a bone specifically for camera movements.

[bitter ingot]

Can't use a bone, I'm using epics skeleton and how does a spring arm component prevent jiggling? If it's still attached to the bone then it will always follow the bone

[narrow kelp]

You want to either set the location of the camera, or smooth out the mesh movement

whichever way works best for you

[unreal jetty]

hey sorry to butt in, but im making a VR game and idk how to change the player's height, and I need to make the player shorter.

[icy dragon]

#virtual-reality

[autumn pulsar]

What's usually the best method to determine if my character is in the air?

[prisma stag]

If you have a CharacterMovement component, you can get the Is falling function.

[blazing wasp]

is there a way to bind data to a button's OnClick via blueprints? I want to pass a reference to "GuildData" when the button is pressed:

[severe turret]

@blazing wasp not in this case. A event is defined with it's arguments. What you can do is set a variable, then when On Clicked is fired, it sets off another event, gets that variable and passes it.

[blazing wasp]

ah ok. thanks

[autumn pulsar]

does isfalling determine if the pawn is in the air or if it's falling?

[severe turret]

it determines if something is within a navmesh bounds but not touching it I believe.

[worldly gyro]

what do you think https://blueprintue.com/blueprint/2tuu8zvd/

[unique harness]

Did you solve your line trace issue?

[trim matrix]

nope not yet

[obsidian moon]

@severe turret why couldn’t he just use an interface

[unique harness]

so what are you trying to do at a high level?

[obsidian moon]

And pass the data

[trim matrix]

make my bullet decal show up at the otherside of the wall thats penetrable

[obsidian moon]

He can also setup a dispatcher

With a listener that takes the parameter

[trim matrix]

rn its juts showing on 1 side while the bullet goes trough the wall

[obsidian moon]

Bind to the dispatcher

@blazing wasp

If you have a button that has an event that passes some struct

Create a dispatcher that takes the argument

Or an interface

That passes the struct

Implement the interface or bind to the dispatcher call

[unique harness]

What about just making the decal thicker?

[obsidian moon]

@trim matrix get the bounds of the mesh you hit

Scale the decal to the width

Attach it at the impact normal

Should do the trick

[unique harness]

and if that doesn't work, you can use the bounds and scale your impact point by the impact normal and use GetClosestPointOnCollision to find the best point without another trace

[obsidian moon]

👆

That’s also a great tip

[static quartz]

My character doesn't move using the run animations. She only moves in the idle animation. Can anyone tell me what I did wrong?

[obsidian moon]

@static quartz you need to pass both speed and direction

And you need to keep get pawn owner

Cast to your character from it

[unique harness]

You also need to connect the execution pin to the SetDirection node

[obsidian moon]

Not get player character

[past jungle]

Hello. Earlier I was trying to create behavior for an actor that allows me to click and drag to move it around the scene. Does drag detection for actors already exist somewhere? Anytime I have to do something in blueprint that feels low level, I feel like I'm doing something wrong or at least redundant.

[obsidian moon]

That will only work for index 0

And may not return properly in all cases

Try get pawn owner will always return

And cast to character base

If your using your own variable types then just cast directly to your class

Would be cheaper to do on begin execute

Store the character ref

Then use that ref instead of casting every animation frame

[static quartz]

@obsidian moon Okay thanks! I tried following a tutorial but maybe it's out of date. I'll give your suggestions a try

[obsidian moon]

So you’ll have begin execute-> try get pawn owner -> cast to your character-> promote to var

Then in animation update pull from that ref

Means you’ll only cast once

Get velocity pass and set speed

Get velocity and forward vector calculate direction set direction var

[regal venture]

How does one pass around a delegate from class to class? I have not found a way to store delegates, nor set them as a type of parameter.

[obsidian moon]

If your in vr get forward of the camera

Not the actor

@regal venture dispatchers

Or you can implement an interface with a return and override

Like a normal function

For example create a custom component

Add an event

Call the dispatcher

You can then bind to this in your listener

And it will show up like “on hit”

Or on overlap

In the delegate list

Of the actor you’ve added the component to

[regal venture]

Sorry, I mean that I want the delegate to be passed to another class, so that the class doing the binding doesn't need a reference to the bound event's class

[obsidian moon]

You don’t have to if it’s a child component class of the actor

It will have the delegate listed

Like a normal component

[regal venture]

ex, I have an inventory component, and an inventory UI widget. That has a context button widget, which I want to bind a function from the inventory component to one of its events, without needing the context button to know about the inventory component.

Which I would think would require me to have the inventory UI get a delegate from the component, and pass that delegate into the context button widget to do the binding

[obsidian moon]

Well not exactly

You would bind to the inventory component in the widget

Somehow or another the widget needs to either be a listener

Or implement an interface

Or you’ll have to get owner in the component, get hud and cast to your widget

There are multicast delegates but they are expensive

And cpp only

Executions in blueprints need a target

[regal venture]

I see...

I'll look into the interface route then

Thanks!

[obsidian moon]

Yeah

You can also set a var up in the widget to store your reference to owner on beginplay and get the inventory component

Bunch of different ways to do it

I’m not sure exactly of your setup as I’m assuming the inventory component is part of your character class

What Id do for that situation is setup a dispatcher on my component

On begin play in the widget I get owner cast to character get component bind to the dispatcher

I pass an index and the value

This index and value control the target and value I want to update

That way you can call the same dispatcher for each item

[regal venture]

Yo hold up

[obsidian moon]

Makes it easier

[regal venture]

Unless I hack the matrix here

[obsidian moon]

You might be able to pass the event ref that way

I’ve never actually tried

[regal venture]

It certainly won't let me add a delegate parameter any other way

But now this function actually does have a delegate input

Shows up in other places where it's called

Time to save my project before I test and crash everything 😂