blueprint

[maiden wadi]

Your AddMovementInput is a bit odd. You need a Directional Vector and an amount in two different arguments. It should be more like this or it'll default to 1.0f but that shouldn't initially be the issue.

Your game mode has the correct default pawn class, and your map or project are using the right game mode?

[trim matrix]

uhm

[fleet quail]

@amber rune sorry i don't really do much BP, i know a lot of beginner, but not any splines

[dire onyx]

yes everything is set correctly

[maiden wadi]

The look controls still work with the camera to look around?

[dire onyx]

Once more the mouse is working

[maiden wadi]

@dire onyx Add this to your SetupPlayerInputComponent function under the bind axis calls. Jump is a character default, so it should work without needing to define it if your project has the Jump input setup already which most do for spacebar.
PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &AFPS_Character::Jump);

[dire onyx]

@maiden wadi Yeah nothing m8

[maiden wadi]

What if you drag the player start location up and click play? Character should fall to the ground?

[dire onyx]

Yes he does indeed fall

[maiden wadi]

No jump, no movement?

[dire onyx]

no jump

no movement

[haughty ember]

@dire onyx Show the project setting where you set the input?

[maiden wadi]

His input was working fine earlier. He tested the Axis values and they were changing from zero to 1

[haughty ember]

Well looks like you guys got a long conv and I'm not sure what's the state.
2 tips I can tell you: (1) Keyboard require focus while moues doesn't. (2) As a last resort - debug.

[maiden wadi]

Well, the charactermovement component isn't broken, it's what affects the character's gravity. I'd wager if you change your move forward line to the following it would still not move
AddMovementInput(GetActorForwardVector(), 1.0f);

[dire onyx]

that is correct

[plain sigil]

when i get actor of class it works for only one of the coffins, i cant open or close the other copies

[maiden wadi]

I mean, you could always add
#include "Kismet/KismetSystemLibrary.h"
and do
UKismetSystemLibrary::PrintString(this, "ThisWorks");
on beginplay, make sure your C++ is working there, and then move it to the move forward to see if that printing if beginplay does. If those print I dunno. Your CMC doesn't like inputs I guess.

[dire onyx]

Lol ok I'll give it a shot. Thank you so much for your time. Sorry to take up so much of it @maiden wadi

[chrome sundial]

Can I call procedural Foliage Spawner from Blueprint? Simulate() Function call does nothing for me

[haughty ember]

@plain sigil Add print message when Coffin is created to see who has it. Add print message in that event to see who's calling it.

[plain sigil]

@haughty ember i fixed it by get all actors of class

[haughty ember]

ha right you used the single version.

[oblique ruin]

So I solved my problem...

My god I'm so mad

But I want to share in case anyone else has to deal with the bs of data assets.

It's one of these potential 3 settings

[flat raft]

What was your problem ?

[oblique ruin]

Characters weren't spawning correctly in the build but were in the pie

K so EITHER change to always cook

check is runtime label

Or Label assets in my directory

I have no idea

which one actually solved it

But at this point idc ;_;

For context issue had to do with not being able to read the Data Asset sheet, they wouldn't spawn cause they'd just read null for which character they were supposed to be.

[vernal wind]

I would like a hint how to implement a universal save/load system. Optimal would be a GameTag based solution, so I can just get all tagged instances and serialize them into a save game.

Some questions that arise are:
How do I ensure consistency between tags and the implementation of the 'save/load' interface?
How do I handle the different 'unknown' data types? Use SaveGame objects as universal return value container and collect them in a meta SaveGame?
How to call all the different constructors/load functions of the corresponding classes with the correct data? Encode the class information into the save game itself via yet another layer consisting of the class info and then 3rd layer raw saved data to pass to the classes' load function?

There are many tutorials how primitive save/load works and there are advanced save/load systems on the market place but can't find much how to build something alike.

[heavy gulch]

Hi guys, I am having some trouble with a custom crouch function. I need to relocate the mesh to adjust for the resized capsule, but when I do that it causes some skippyness in the animation to uncrouch. Anyone run into this/ know what might be going on?

I think it may be that the mesh is getting its location set in A pose?

but not sure

[robust cliff]

So i have noticed that in the side scroller movement even though you can move left right up and down. When you move left or right there is a point in which you are actually facing the screen is there a way to prevent this from happening

[mortal wharf]

https://gyazo.com/6b73c6a221e78742c95a958af29859a9 how do i fix this? I duplicated one of my levels called Reaknight 2 and i made a duplicate called reaknight 3 for another reason but when i try to save reaknight 3 the following appears.

[open crypt]

Can I make a data table that allows me to pick levels in a list? How do I make a reference to different levels in my level browser, without just using level names variable?

[north herald]

Hey guys. I'm making an inventory system, and I wanted to have a data base with all the types of item that can be stored/spawned. Where would it be best to store that? Currently, I thought of maybe storing it in a variable inside the game instance but that felt kind of messy. What would be the best practice for that?

[open crypt]

you can make a data table containing a lists of all the structures

or just make a main data structure and then save that to savegame objects

[north herald]

Is that possible to do in blueprints? I thought you couldn't make thoses with BPs

[open crypt]

no, there are a bunch of tutorials on youtube that walk you through the whole thing

you can even set something up in excel as a CSV file and import that into unreal to make a data table

but first watch through those inventory tutorials, yes they can be kinda long, but most of them are broken up into separate videos

[north herald]

Thanks for the suggestion Blake. My inventory system is already functional and all, I just wanted to know best practice to store the types of item. Rest is fine. I'll look into data tables.

@trim matrix Is your cube generating overlap events?

See, for the overlap events and hit events to fire, it needs to be enabled in the first place or it won't trigger. You can check that in the details section of your component:

[mortal wharf]

https://gyazo.com/6b73c6a221e78742c95a958af29859a9 how do i fix this? I duplicated one of my levels called Reaknight 2 and i made a duplicate called reaknight 3 for another reason but when i try to save reaknight 3 the following appears.

[north herald]

@trim matrix Gotcha. Next step then would be to try playing your sound outside of the collision to see if you can even get it to work in the first place probably

so you have managed to make the sound play?

outside of the collision I mean

Might want to look into the sound then, since it's probably related to the file / settings. I can't help you much more than that, I haven't done a lot of projects that use sounds tbh

Try the different ways/nodes to play sound maybe?

[slender idol]

Hi guys, any reason why I can't modify my pawn's rotation in sequencer? Everything else works fine, but the rotation isn't affected at all. Might this have something to do with the fact that I link the rotation of the pawn to the controller?

I don't want to do that- I need the sequencer

defeats the whole purpose if I do it manually

[meager spade]

If I have float A and want to set it to the value of B incrementally over X amount of time, how would I achieve this?

[dapper kiln]

Is there a way to get the length of an animation in blueprint when the animation has a play rate of something different than 1?

[lucid granite]

I am using for(APlayerState* BasePlayerState : GetWorld()->GetGameState()->PlayerArray)
and for some reason, when I make a change to one player state, the changes are adjusted for both player states.
Any reason why that would be with the loop above?

[marsh blade]

Hello everyone, I am following a tutorial to create IK on the default third Person Mannequin (http://unrealdevelop.byethost11.com/wp-content/uploads/2016/11/BigIKUpdate.png). I've reached a point where I need to create then end of this image (http://unrealdevelop.byethost11.com/wp-content/uploads/2016/11/IKUpdate_part_4.png) - after the branch. I am unsure how to create the DisableIK in the comments the author says that DisableIK and EnableIK are "Custom Events" but this blueprint is inside a function and from google it doesn't look as though a custom event can be created inside a function. The author says they use SetFloatByRef but when I drag off from the Branch node the only option is Set-By-Ref. Little confused at this point how to create the node to finish this off.

[lucid granite]

my bad, I just realized i posted C++ in the blueprint

[slender idol]

Is there any event to know when Set View Target with Blend is done?

[north herald]

Hello everyone, I am following a tutorial to create IK on the default third Person Mannequin (http://unrealdevelop.byethost11.com/wp-content/uploads/2016/11/BigIKUpdate.png). I've reached a point where I need to create then end of this image (http://unrealdevelop.byethost11.com/wp-content/uploads/2016/11/IKUpdate_part_4.png) - after the branch. I am unsure how to create the DisableIK in the comments the author says that DisableIK and EnableIK are "Custom Events" but this blueprint is inside a function and from google it doesn't look as though a custom event can be created inside a function. The author says they use SetFloatByRef but when I drag off from the Branch node the only option is Set-By-Ref. Little confused at this point how to create the node to finish this off.
@marsh blade From what you say, it sounds like the tutorial expects you to create a custom event named "DisableIK" outside of the function, inside the eventgraph, and then call it from inside the function.

[marsh blade]

@north herald Thanks I will give that a shot

[quartz pawn]

my bullet wont have gravity

it just floats

[marsh blade]

@north herald Thankyou so much that set me on the right path, the EnableIK / DisableIK were custom events in a graph.......made in the next step of the tutorial.

[north herald]

@marsh blade Glad to hear that! Hope you'll nail the rest too

[quartz pawn]

my bullet wont have gravity
it just floats

[modern cove]

How do I tell my UMG widget, "Don't start this event until this other event is finished running"?

[woven kelp]

You can just use a bool property for that

Or if you’re working with something really abstract, bind and unbind the event on the fly so that it’s only ever bound when it expects to be called

[modern cove]

I'm having a problem where one Event has delays so the messages can be read at a reasonable speed. WHat I want is for the widget to vanish and change over to another after all the messages have shown, but instead it immediately loads up the next one while the current one is still showing its messages

it's also loading up 2 similar looking widgets for some reason

[surreal lantern]

Tried to add a delay node on a for loop but it doesnt add any delay, any1 knows whats the problem ?

[modern cove]

@surreal lantern I tried that too; I ended up switching over to a Custom Event that simulates the Loop. It's doing some things better but per my messages just now, it still has trouble

[surreal lantern]

Its strange cause I created the actions manually ( the iterations one by one ) since it was a loop with only 4 iterations

And the delay worked properly

[woven kelp]

@modern cove it sounds like you want your message widget to consume the event so that it doesn’t pass through to the other widget. UE doesn’t provide this out of the box for custom events, so you’ll have to implement it yourself. I’d recommend making a handler for the event that can perform the logic-based firing you’re looking for

[surreal lantern]

But when I try to use the forloop to optimize the graph, it just run all iterations without delay

[woven kelp]

@surreal lantern make sure your loop is in your event graph. You can only delay on the event graph. Function graphs etc don't support it.

[quartz pawn]

my bullet wont have gravity
it just floats
@quartz pawn

[surreal lantern]

It was on the event graph

Level blueprint btw

[modern cove]

I kinda see what you're saying; so where I do go to add this Handler of which you speak? Is it somewhere within the UMG I'm working in?

[woven kelp]

@surreal lantern Try this. Looks like For Loop doesn't actually wait for the execution to complete for some reason. So instead of doing this...

you should implement it yourself

like this:

this worked for me in a quick test

You can look at what the For Loop is doing by double clicking it. It's in blueprint. Pretty sure the sequence node is not respecting the execution interrupt from the delay, and is instead immediately continuing when the first execution yields. causing all the loop bodies to fire at once

so when you bind it to the end of your execution like in my example you force your loop body to execute in order

[narrow wyvern]

Using Unreal is so humbling, because it makes me feel like an absolute moron for not understanding why stuff isn't working or what the hell is going on.

lol

[earnest tangle]

Games programming is complicated

[trim matrix]

Samantha are you new?

[earnest tangle]

Most software just runs one thing at a time so it's a lot easier to reason about the result

but games have so many things going on at the same time it's much more complicated :)

[narrow wyvern]

I'm not a programmer; I do sound design and prop stuff. I'd love to hop into programming but holy fuck

[woven kelp]

Blueprint is a really easy place to start

it was originally designed for artists

[trim matrix]

well take a look at this channel https://www.youtube.com/channel/UCwt9gg3t19wDNY1TVpm97sw

best youtube tutorials

you can learn from

[narrow wyvern]

I managed to get the first person camera person working

No guns or hands or anything yet, but it's a start

My next goal is to create an enemy that simply walks on a predetermined path, like a guard going on a patrol route

[haughty ember]

@modern cove @surreal lantern The reason it doesn't work is because delay works by adding a latent function based on a key (made from the node and the object). If key already exist, it uses it. So calling Delay in a loop 4 times, before any of them execute, will actually only do it once.

[narrow wyvern]

Every damn tutorial I've seen is either outdated or doesn't work

fml

[flat raft]

There is a base set of rules for programming most languages.

[trim matrix]

seriously check out Reids channel

hes like a godsent angel

[earnest tangle]

A lot of the outdated guides will still work.. The main difference seems to usually be the UI is a little bit different in UE, but the logic itself still works the same way

[narrow wyvern]

@earnest tangle they haven't been working :(

[flat raft]

learn the few rules, and blueprints become more understandable

[earnest tangle]

Oh, that's unlucky then

[narrow wyvern]

It seems like such a common system, I'm surprised there aren't more tutorials on it

[trim matrix]

also i got another link

i forget where i got this but there are

[earnest tangle]

If you mean the guard that walks a path, I think there's some guides on "waypoint following AI" or something along those lines

[trim matrix]

should be able to google it and get some understanding of what blueprints are connected and stuff

[narrow wyvern]

I have a basic understanding of how they work, for the most part

I've dabbled in HTML/CSS and C#

But still, I feel like such a huge moron right now

Even just trying to use a simple move to location doesn't seem to be working

I don't know if I'm not running the right type of parent object/character to function as the enemy or what

But I've tried everything over the past 2 days

[modern cove]

@woven kelp I've used an Event Dispatcher in my game within some of the UI Widgets, but are logic based Event Handlers different? I could post a few screens of what I currently have if that'd help show what I'm trying to accomplish

[trim matrix]

well if you're spawning ai you have to spawn it with the correct function

"Spawn ai from class"

that might be the problem with the ai

[narrow wyvern]

I just wanna throw in a nondescript cube or whatever basic humanoid shape I can get (elongated sphere) and have it move from point to point in a loop :(

[trim matrix]

show the code

maybe i can help

[narrow wyvern]

This was one attempt

I've tried a lot of various methods from all sorts of tutorials

[trim matrix]

whats the actors base class?

[earnest tangle]

The basic logic looks alright to me at least

[narrow wyvern]

@trim matrix I don't know what that means D:

[trim matrix]

whats the parent class?

[haughty ember]

(A)Character

[narrow wyvern]

Fuck, um, what should it be if I were to start from scratch?

[trim matrix]

what is it now?

[narrow wyvern]

Nothing

[trim matrix]

deleted?

[narrow wyvern]

I have been trying so many variations of that idea for about 6 hours now

yes

I tried doing it with target points, I tried it with scene components

[trim matrix]

did you use an AI controller?

[dense mica]

something is weird goes on*

[trim matrix]

and link it?

[narrow wyvern]

idk what an AI controller is, my apologies

[dense mica]

This was one attempt
i believe this is not the way set waypoints and move AI to them

[narrow wyvern]

I was reading some documentation about it, but it didn't show up in my list of classes of actors

[trim matrix]

in the actor that you used you need to think it

link*

[dense mica]

is there any navmesh in the scene?

[trim matrix]

that aswell

[dense mica]

what actor/scene component/or any other thing you use to set waypoints

and how do you store them in your character

[narrow wyvern]

I've done a navmeshboundsvolume

[trim matrix]

kk that should be good then

you basically just need an AI controller class linked to the actor/character you are using for the pawn

so when you run the ai logic from those functions

the controller knows what to do

[dense mica]

You really need Behavior Tree first lol

even if you dont need, you should use actors instead of determined vector locations

[trim matrix]

yah she just wanted it to work

[narrow wyvern]

I'm sorry if I come across as needy or clueless, I've been trying to do my due diligence and look up documentation and tons of other stuff but something so simple seems so far out of my reach

[trim matrix]

🙂

[narrow wyvern]

@dense mica I assumed it would be the opposite

That vector locations would be more efficient

[trim matrix]

you can actually make vectors into 3d widgets

[dense mica]

but not dynamic

[trim matrix]

and move then around

[narrow wyvern]

yup!

I did that :)

With scene components

[dense mica]

3d widgets?

[trim matrix]

lel

[dense mica]

first time i heard that 🤔

[trim matrix]

look near the details of the variable

you will find it

[narrow wyvern]

You make the scene component instance editable and then you can do it

[trim matrix]

i'm tlaking about something different actually

[narrow wyvern]

The problem is that when you move the parent class the scene component moves as well

[earnest tangle]

The vectors are probably easier to setup if you just want something done quickly because you don't need references to them in your actor

But using actors as waypoints is not going to cause perf issues :)

[narrow wyvern]

The goal is an eventual stealth system, so I want to do whatever can facilitate that further scope

[earnest tangle]

Take a look at this series of tutorials https://www.youtube.com/watch?v=zNJEvAGiw7w

[trim matrix]

then you will see a little diamond in the level by the actor location and you can move it

[narrow wyvern]

holy fuck what is that monstrosity

[dense mica]

this collision boxes are my AI helpers, I use them to spawn classes or as waypoints

[earnest tangle]

This starts from the AI basics and goes into patrolling via waypoints

it also does chasing players etc. in later videos

so I think it should show most of what you're looking to do

[dense mica]

and i reference them like this on my spawn manager blueprint

for waypoints its the same idea

just dont use them as spawn points, create a new empty actor, place them and reference them like this

[trim matrix]

@narrow wyvern so you just got to remember to have an ai controller for your "AI" tehe

[dense mica]

for further advanced examples you should use EQS or BT systems

[trim matrix]

and if you spawn ai via blueprint use the spawn ai function

[dense mica]

yep you should use AI Controller also zykoz is right

[trim matrix]

yah three days grace your little game its looking pretty fun

[narrow wyvern]

Where do I get an AI controller it's not showing up with the "place actors" D:

[trim matrix]

click on blueprint

[dense mica]

i hope everyone thinks same when its out 🥺

yah three days grace your little game its looking pretty fun

[dense mica]

and this

[trim matrix]

yah you can use actor

[dense mica]

for AI Controller

https://youtu.be/SNYZBwCU8WY

[trim matrix]

then in the actor link it

[dense mica]

@narrow wyvern we can explain the further progress but i believe it will take too long and actually if you are really beginner waypoints are kinda complex for starting blueprints, this tutorial helped me back when i started learning unreal

you should know how to store variables and how to use them with effience and learn about gameplay framework a little to understand the logic behind AI waypoint system, its not that complex or hard thing to do, actually very easy but for a beginner there are terms that might come hard to explain

[trim matrix]

@narrow wyvern if you want a basic ai use pawn or character

so you can link a controller

if you use actor then that doesn't use a controller

anyways if you have questions get stuck i wouldn't be afraid to ask for a little help

a lot of people are willing

[marsh blade]

@north herald Still Need to dial in some numbers and tweak but She's working

[trim matrix]

ik>?

[pulsar orchid]

Anyone have an idea why my camera is only allowing me to turn +/- 90 degrees instead of full 360s?

[marsh blade]

Yeah I was having some issues earlier: I followed this tutorial: http://unrealdevelop.byethost11.com/2016/11/15/ik-feet-placement-setup/?i=1

[pulsar orchid]

It's acting as if my cursor (which isn't visible) is hitting the left/right side of the window and stopping the rotation.

[trim matrix]

anything weird with this in your character?

[pulsar orchid]

Nope

[narrow wyvern]

Sorry friends, I'm falling asleep on my computer so I'm going to head to bed

My apologies, I'll read everything you say when I wake up

:)

[trim matrix]

@pulsar orchid something wrong with camera spring arm?

[pulsar orchid]

It doesn't seem to be. It seems to be something with the rotation. I'm looking into a few articles online, but none seem to be helping, though the issue is the same. I set my cursor to be visible, what happens is as I spin left/right (or up/down) when the cursor hits the walls of my screen it stops the rotation from going in that direction further.

[trim matrix]

the window?

walls of my screen?

[pulsar orchid]

The cursor was going out of the game window and hitting the edges of my screen. I just fixed it by setting Hide Cursor During Capture to True.

[trim matrix]

nice!

now i know what you meant

[grizzled rain]

I have a animBP that's being put on a mesh but it's not registering as valid

the animBP can't even cast to the owning player

[pulsar orchid]

Is the AnimBP and Mesh using the same skeleton?

[grizzled rain]

Maybe not? is there a easy way to convert this?

[pulsar orchid]

You'd have to create a new AnimBP, set it to use the same Skeleton as your mesh, and attach that new one. As far as I'm aware you can't (safely/reliably) change the skeleton from an established AnimBP, but I could be wrong on that.

[grizzled rain]

Alright I'll see if that fixes it

That fixed it! thank you. Someone that worked on this project had like 5 different skeletons because of imports so it made it very confusing. haha

[pulsar orchid]

Anytime! Believe me, I've had my fair share of AnimBP issues. 😉

[vernal wind]

Hit the wall again with my save/load system. Thought I could build a general SaveGame + Class container but there are no dynamic casts to specify on load to 'unpack' the given SaveGame object by casting into the specified class type.

Is this even possible to do in blueprints? The more I try the harder I fail. I could try the chain-cast-workaround but without dynamically specifying the type I can't iterate through them and would have to place every damn possible node in every place or build yet another abstraction like a library function for the issue.

If you don't have any ideas I guess I'll scrap that system, hard code the stuff and someday implement it properly in C++ :/

[haughty ember]

@vernal wind Not sure where you're actually problem is, but you can make structs from uclass

[earnest tangle]

There's some savegame plugins on marketplace

EasyMultiSave was also free at some point, maybe check if you have it?

[vernal wind]

@haughty ember I try to create a system where I don't need to explicitly add everything to a save game object or data struct and dynamically grab all things that implement an interface to de/serialize themselves, so the logic can be contained inside the very objects.

The whole save/load game blueprint system seems to be quite lackluster and basic in it's feature set. Also no 'detect all save files' to list them or support version differences available at all.

Thought I could make it work good enough but missing dynamic casts in blueprints is yet another road block. Feels like trying very hard to do something those very basic nodes where never designed to do in the first place. Hence my question. No need to force things.

@earnest tangle that's basically what I tried to build myself. But seems to be impossible without complicated workarounds in BP only.

[earnest tangle]

Yeah, I haven't really looked at the "native" BP savegame support but it looked pretty basic

I'm using EMS in my project and it works pretty well especially since I got the plugin for free

I do get the feeling I might have to move to a custom system at some point in the future because I have some more advanced features that I'm using UObjects and such with, and EMS doesn't really seem to be able to handle saving those

[vernal wind]

writes an issue in his backlog to implement a proper Save/Load system for UE if time allows in the future.

[neon sorrel]

Does anyone know how I can cast to a hit actor from the line trace results and get components from it? Trying to get a widget inside the hit actor to display it when hit.

[haughty ember]

@vernal wind Not sure what's the problem is still. I'm assuming you're doing something like GetAllActors and finding those implementing the interface.
Just create a unique key for each actor, call Serialize to create the data, and save it into a map.
On load you use the same key, load data from the map based on the key, and call deserialize.
Or am I missing something here?

@neon sorrel looks like you're already doing it..

[neon sorrel]

The current way im doing that gets the component from the player that called the line trace

Not the one it hits, which is confusing me

Also sorry for the lines being a mess, Ill clean it when its working

[haughty ember]

It sounds like the line trace collides with it self the actor you don't want it to. Add "self" to the ignore actors

Showing the actual line trace node would help though

[neon sorrel]

Its already set to ignore self though 🤔

[vernal wind]

@vernal wind Not sure what's the problem is still. I'm assuming you're doing something like GetAllActors and finding those implementing the interface.
Just create a unique key for each actor, call Serialize to create the data, and save it into a map.
On load you use the same key, load data from the map based on the key, and call deserialize.
Or am I missing something here?
@haughty ember interesting idea to circumvent the dynamic casting problem. Might give it a last try after another coffee. 🤔

[haughty ember]

@neon sorrel Weird. Print the HitActor to verify? it really shouldn't.

[neon sorrel]

When printing the hit actor it does properly target the other player

[haughty ember]

@vernal wind I kind of assumed how your serialize method in the interface looks like btw

[neon sorrel]

Just when I try to show the nametag it shows the local players nametag (nametag = widget in player)

[haughty ember]

if the printing show the correct one, the issue isn't with the line trace.

how are you trying to show the nametag

[neon sorrel]

Just cast to that player and then set visibility of that widget to visible.

[haughty ember]

Just when I try to show the nametag it shows the local players nametag (nametag = widget in player)
@neon sorrel what do you mean by "local" ? you're talking about multiplayer?

[neon sorrel]

Sorry should have said that, yeah trying to get it to work with 2 clients

[haughty ember]

yeah mention that next time. Anyway what you're doing is going to only run on the client

Notice how you're using the B event, which is an input event. The server has no input hence it will only execute on the client.

[neon sorrel]

Hm interesting, thought I could just use that for debugging.

So just execute all that code from a server event then I would assume

[haughty ember]

You can just use another custom event, make it execute on server, then call that on the B key.

[neon sorrel]

Yeah, I'll give that a shot then

ty

[manic knot]

Is there a non-streamed level equivalent of Remote Event when loading a whole new Persistent Level? Like, call a function thats on the level im about to load?

[quiet valley]

hey, anyone around to drop some help with BP Interfaces?

Its driving me crazy, I made a BP with the Object Class as Parent, and Implements a Interface I made..

when I get I instance of that BP, I ask if it "Implements Interface" and I'm always getting not implemented..

Interface Implementation

Actual use of the implementation

@everyone any thoughts?

[neon sorrel]

Not really blueprint, but got my system working after a lot of configs, is it safe to run it on event tick with a delay of 0.2 seconds if I want to check constantly if a player is looking at another player?

[haughty ember]

It looks fine to me. I would add a Print to make sure you get the correct class you're expecting.
If you can debug the code it would also help.

[quiet valley]

I did the debug, and the class its the expected the BP_DebugCmd, which implements the interface

[haughty ember]

@neon sorrel why delay? but if you're asking if it's safe to run a line trace on tick - it is. If you can avoid it it's better, but it's safe.

@quiet valley Debug UKismetSystemLibrary::DoesImplementInterface. Check both arguments match what you're expecting

[neon sorrel]

Well was thinking a delay would make it a bit less prone to crashing by running too fast

And im not sure what else to use to constantly check if the player is looking at another like that

[quiet valley]

@neon sorrel just use LineTrace, its realtime, no delay needed and I think its safe to use in event Tick

[haughty ember]

You can also look at the Interfaces property of TestObject, to see the interfaces it actually implements

@neon sorrel You can describe the bigger picture of you want to do, sometimes you can avoid it. But it's safe to run it on tick

[neon sorrel]

Basically my system currently displays a name tag on another player when one player looks at them, I just want to constantly check if that player is looking at that other player and if so show the name tag

[haughty ember]

well if you're actually talking about "looking" so yeah there's no other way. Just do a line trace. No need for delay

[neon sorrel]

And stupid question, but is there any way to make that line trace invisible? So it doesnt show on the players screen?

[quiet valley]

@haughty ember yeah I didn't get too much involved in the c++ code yet, so far the blueprint debug, shows me the object is being received ok..

@neon sorrel sure it does

[haughty ember]

@neon sorrel It's a debug line. You used it on your line trace, in the "Draw Debug Type".

[neon sorrel]

Ah yeah just found that, perfect ty once again!

[quiet valley]

yeah, just set that to None

[neon sorrel]

Now im just going to experiment with moving the widget based on where the line trace hits the actor

Probably going to be all kinds of fun

[quiet valley]

@haughty ember object is being sent in the BP debug..

[haughty ember]

@haughty ember yeah I didn't get too much involved in the c++ code yet, so far the blueprint debug, shows me the object is being received ok..
@quiet valley not sure then. It should work though according to the images and what you're saying

@quiet valley I wouldn't trust that tooltip too much. Use print

[quiet valley]

lol

lets see

yeap, BP_DebugCmd prints for Display Name

its REALLY weird

thats why its driving me crazy

[haughty ember]

if it's small enough you can upload the project and I'll take a look. But other than that or debug I don't have any other ideas

[quiet valley]

about 100mb, its small enough, just working on BP prototyping

let me upload it

@haughty ember https://mega.nz/file/OBsQHYDa#0CTbckzHkdy8oD80kbONLdwbEwr-9BEJLakRLmby2Yc

its 7zipped

[haughty ember]

Looking into it now

[quiet valley]

big thanks

once you play, press ENTER, its enables you to write "chat", and the text "/debug" should trigger the problem

[neon sorrel]

Just popped back in to also ask, I keep getting errors logged in console that its trying to access none when the line trace detects something without the tag specified, is there any way I could stop that error from constantly showing?

[quiet valley]

check the boolean return value

returned*

branch into it

and if its true, go on

the boolean value tells you if there was a hit, otherwise returns false

[neon sorrel]

It seems to just print out false when it doesnt then when hitting the actor true, as it should be. Its just showing up an error accessing none but the script is working.

[quiet valley]

can you post a screenshot?

of the usage I mean, where you are getting the None error

[neon sorrel]

Right here on that branch

Still works, it just does that whenever its looking at an actor without the tag

[quiet valley]

oh no

thats not the one I meant

1 sec, gonna prototype

[neon sorrel]

The error message in console?

Yeah just confused by your wording there

[quiet valley]

hit test

check the first branch I did

IF there is a Hit, I check the Actor Tag

otherwise the error is clear, you are just check the Tag of "None" when no hit is returned..

checking*

[neon sorrel]

Ahhh I should have thought of that! Makes sense, thats why it was constantly making that error

[quiet valley]

yeap

[neon sorrel]

Thank you for that

[quiet valley]

np!

makes me feel competent lol

anyway, still big amateur.. >.<

but the moment you get more and more involved, your thinking process while you play any game, goes into "this mechanic could be done like this" or "this is a nice approach to block users from escaping landscape"

your thinking process while you play any game changes*, it goes

non english native and sometimes writing too fast to speak well haha

[neon sorrel]

Yeah, thats the same with any programming once you get into it you appreciate it a ton more in games.

And you look for things most people dont notice.

Everyone always has more to learn no matter how advanced they are also, so its helpfull to have communitys like this.

[quiet valley]

yeah, thats exactly what I mean.. I've been much more analytical since kid when started poking with programming

@haughty ember figured smth?

[haughty ember]

yeah >< can't believe I missed it

debugged the hell just to figure that one out lol

[quiet valley]

lol

hahah what was wrong?

[haughty ember]

Let me verify though, 1m

[quiet valley]

sure

[quiet valley]

Niceee

[haughty ember]

I did it the "dirty" way though. I'll explain the issue and how you should fix it:

[quiet valley]

lol

ok

[haughty ember]

@quiet valley so your Commands map is mapping from string to Object. The thing is though, you don't have object. What you're really assigning into that map is the class.
So when you call DoesImplementInterface(ObjectFromMap, BP_BaseCommand_Interface), ObjectFromMap is actually equal to the class of BP_BesCommand_Interface rather than the object. Inside the function they call GetClass() again, which just returns UClass pretty much.

[quiet valley]

thats a big OH

[haughty ember]

So first, change your map type to have key=string, and value = Actor object class
then, there are 2 ways to continue:

1. Add a c++ function that you can call in blueprints, that takes a Class and an interface class, and checks if it implements it
2. At the beginning, create actual objects of your commands. You can uses ConstructObject for that

The first is better, but require c++.

The dirty way I did it btw.
Which is really bad, since it will also construct an object every time you enter the command, and will actually do it twice.

[quiet valley]

you know, I tried that, but not using the object class as value, but the object reference which I deleted later because it didn't make sense..

ok, now I get it.. I'll just implement these in the constructor.. I don't want to go still with C++, even if I feel C

C++ proficient, I have almost zero knowledge of UE coding

[haughty ember]

yeah it takes a bit getting used to. the BP isn't that bad tbh though.
And anyway thinking about it constructing the object while costing a bit more in memory is probably worth it, makes the code more robust and elegant

[quiet valley]

yeah, I feel "its the way to go"

[obsidian folio]

This for each loop with break only executes the completed node. Does anyone know how to resolve this so it will actually run the loop body node and the rest of the code there?

I see that the local variable "Loaded Save L" and the "player stats" variables are showing as "variable is not in scope". Not sure if that's contributing to it or not.

[quiet valley]

does the array have elements?

[obsidian folio]

Yeah it has a break to get a specific variable from the struct

I just ran a print string off the false for the player ID check and that didn't execute either.

[haughty ember]

@obsidian folio I'd first move the PrintString node, making sure the lines are connected correctly.
But then debug, if the array has element the body will run, there's no other way.

[quiet valley]

@haughty ember done, its working.. made another empty map for the objects ref and fill it in the constructor with the classes I setup..

@haughty ember any constructive critic? anything you think I should get better? I mean seeing my code..

[lapis knot]

how do i make laser beam with niagara?

[quiet valley]

@lapis knot no idea haha

I never touched niagara myself

[haughty ember]

@quiet valley Didn't look at most of it, only focused on the problematic area. But it seems good

[lapis knot]

oh well thanks

[haughty ember]

@lapis knot You can try #graphics or #niagara ,but there are A LOT of tutorials on google & youtube.

[lapis knot]

oh i see thanks ill try google

[quiet valley]

its really hard to be a indie developer.. even if you learn how to make some low poly 3d models, you lack of another 80%.. textures, interfaces.. jiz

sometimes I feel I dont find anything even near of what I'm looking for..

[obsidian folio]

Alright, I see that for some reason the save system is not saving that particular element of the save file. Time to do some digging. Thank you guys for your help!

I do have a ton of "Variable is not in scope" issues though :S

[obsidian folio]

Yup. My bad. Next time I'll make sure that it actually saved prior to questioning why it's not running that for each loop lol

[zealous surge]

uggg I'm starting to crack over here over the simplest thing lmao. I have a sphere attached to my character and all that I'm trying to do is rotate it to match the direction of my left joystick.

it's so simple, I'd think there would be something that already exists to do it really

if I move it left or right only, it seems to work fine (Green Arrow)

but if I move it up, it's the same as if I moved it left, same for down turning into right

and this is what I'm using...incorrectly lol

[zealous surge]

I get why it's happening, but can't for the life of me think of a way to make it do a full 360 (or -180 to +180...whatever works)

[fading parcel]

i do not get the logic, all works but i do not see the outliner attach like a child-parent, i tested on all 3 nodes, all the same result, ingame attached but not in the outliner. and its the simplest code i use triggerbox, onenter, disable collision and attach

and the print result from this outputs true

even when i check on childcomponents attached to the mesh he shows the epicguy as child

[rich falcon]

Hey folks, I have a weird input issue:
This guy is refusing to work when I'm clicking directly in screen center, theres a 140p*140p area where the clicks wont register.

I have no UI present in said area and inputs do work anywhere else so....
Anyone have any idea as to what can this be?

[boreal ether]

@zealous surge Try this https://answers.unrealengine.com/storage/temp/52121-atan2.png

[zealous surge]

hah nice, will give that a shot!

[boreal ether]

https://answers.unrealengine.com/questions/266011/how-to-get-gamepad-stick-rotation-in-180180-coordi.html

[steep hollow]

I have a little working buddy how is looking for new wood objects to cut down

unfortunatelly, i have some problems ins finding the navigation to actor in the components?

[zealous surge]

@boreal ether that freaking worked! Thank you so much dude

I spent a couple hours just staring at it like... how in the world lmao. This immediately worked perfectly

[fervent trellis]

I'm having trouble having trouble set percent being visually represented in game. I did some debugging and proper values make it all the way. But the bar never changes.

[wet steppe]

Hello?

I want to have it so the landscape overlapped by my collision box goes away

so gets casted to the visibility mask I suppose

[rich falcon]

Hey folks, I have a weird input issue:
This guy is refusing to work when I'm clicking directly in screen center, theres a 140p*140p area where the clicks wont register.

I have no UI present in said area and inputs do work anywhere else so....
Anyone have any idea as to what can this be?
@rich falcon

Right click works in that area, only left click is inactive

[boreal ether]

@zealous surge np 🙂 In the future you could try sketching it out, then you can see you need to calculate the angle of a triangle, which you can with atan2.

[fading parcel]

my code above shown on image, Seems to be a UE version issue, tested the same code on 4.22.3 till 4.25.3 and only 4.22.3 does not show the parent/child relation in the outliner all the other versions have the actor attached to the character

[haughty ember]

@fervent trellis Use the widget reflection to check the actual value. Also, you can use a simple division instead of Map Ranged Clamped

[fervent trellis]

@haughty ember Where do I find Widget Reflection? How would I use simple division if my hp value is >100?

[haughty ember]

Use the Widget Reflector (Ctrl+Shift+W) to get information and statistics about your Widgets.

@fervent trellis

[fervent trellis]

That tool doesn't seem to be able to find my widget. Cannot find them in the hierarchy manually either.

Both numbers show proper value, it just never gets visually updated.

If I render it to Screen instead of Space it works. But the sizing gets all wild.

[warped quail]

Uh haha, I've accidentally made a blueprint that causes infinite recursion (crashes the editor) in its constructor or something, so I can't even open it to undo my mistake 🤔 I could start over but I'd rather not. Is there a way to copy its text form, edit it and paste it back without opening it, or something like that?

Nevermind, I found a way to keep it from happening by removing a property from the Property Matrix

[unkempt patio]

Hello everybody
is there a wey to get the camera transform matrix in the material editor ?

[broken night]

Hi, I'm wondering if it was possible to call a function of the parent of my component's parent class?

[earnest tangle]

just call the function

[haughty ember]

Hello everybody
is there a wey to get the camera transform matrix in the material editor ?
@unkempt patio Not without custom code, but you can get the various parameters of it (e.g. camera position)

[unkempt patio]

how can I do it with code ? I'm not afraid of it !

[haughty ember]

Well you can add custom node, but I have no idea what's the name of the view matrix.
You can also create custom shader completely, but it's a topic on it's own. You should google that

[trim matrix]

hello guys I am trying to make s shader for my strategy project from august 2020 but I can't still make it, noone could help me, I watched the whole yt for thess videos ,read the whole do and when I do it, it doesn't work 😦 , if someone can help me tag me or dm me, will appreciate it a lot

[quartz pawn]

my bullets dont have gravity for some reason

[worldly gyro]

Hello you see sometimes when we put a tower we have its radius of action. It makes a circle appear around the tower.
how do we make this circle?

And the circle is filled of a color

[primal smelt]

Hello you see sometimes when we put a tower we have its radius of action. It makes a circle appear around the tower.
how do we make this circle?
@worldly gyro There is probably a ton of ways to go about it, off the top of my head you could go for a materials solution using something like what is found in this video: https://www.youtube.com/watch?v=GXbE0IqbA7w

@worldly gyro I've played around with this a little and have implemented something where if the player possess a pawn the textures around that pawn change to look as though there is a bright circle around them

my bullets dont have gravity for some reason
@quartz pawn Might be a good idea to open a project with the fps starter content and study the FirstPersonProjectile blueprint. Be sure to check the Details panel as there are a bunch of physics options there

[opaque blade]

Workflow question here

Often when I introduce a new variable to a base blueprint / abstract one, inheriting blueprints null the new default value
i.e. adding a FName variable to add ability to change the DynamicMaterialInstance Vector Property I want to change, however the default value entered in the base blueprint is just "None" in the inheriting ones

Is there any way to "detect" that issue? I mean I didn't set the value explicitly to None here.. which is kind of annoying when suddenly nothing works anymore 😱

[weary jackal]

Anyone can suggest a good way of skeleton dismemberment based on shoot(let's say line trace hit ). Something like gore system in zombie games

[proud hull]

What is the most accurate and efficient way to do hit testing for attacks? Currently, I can think of at least 5 ways to accomplish this, all with their own pros and cons:

1. Multiple single line traces from the weapon during an attack, 2) capsule/sphere/box trace around the weapon during an attack, 3) permanent collision capsule/sphere/box around the weapon and it is activated only during an attack triggered by an animation notify, 4) permanent "hit zone" in front of characters that gets a list of characters inside it during an attack triggered by an animation notify, 5) all attacks are simple attacks and they either hit or miss based on random rolls and current target.

[earnest tangle]

Well as you said they all have their pros and cons

It depends entirely on what style and "feel" of combat you want

[proud hull]

Mainly wondering if I am missing something major. Maybe a better way to do hit testing altogether.

[shadow saddle]

anyone know how to get location of this sphere on spline

[earnest tangle]

I think you listed pretty much all of the alternatives unless there's something really crazy left :D

[proud hull]

Thought so. Thanks for your quick reply. So far, I opted for number 3 since it is easiest to implement (while still being accurate), hehe.

[earnest tangle]

@shadow saddle if you know the world location of the sphere, there should be a get location on spline closest to point or something like that

[feral ice]

1000 should be 2 and 30 should be 6 and so on. I want function that makes higher values lower and lower values higher

[shadow saddle]

@earnest tangle no

not working

the sphere thing move along with the spline

i want to use it on my AI car

when the car move the sphere will move along the path and guide the ai car

if i control manually yes it will work

now i want my ai vehicle to track the location of this point

but i dunno waht is the name of the node

that allow me to get the location

of this sphere

[earnest tangle]

Is there sphere an actor or what exactly?

[shadow saddle]

its an actor

spline point

[proud hull]

@feral ice You more so want a math formula, not a function, hehe. Although I'd assume you would run that math formula in a function.

[earnest tangle]

If it's an actor, use Get Actor Location

[shadow saddle]

do you know what is spline

[earnest tangle]

Yes

[proud hull]

@feral ice I am uncertain of how you are scaling those numbers, but a quick way to get you started would be to simply use the inverse of the input, 1/x. So, 1/1000 is lower than 1/30.

[maiden wadi]

@shadow saddle Zomg was trying to ask what the sphere is. It is not a "spline point" if it moves along the spline. A spline point is a point inside of the spline that determines how the spline is made up. You cannot move a spline point or the whole spline would change. Thus you cannot move a spline point along the spline. So if your sphere moves along the spline, it's most likely not a spline point. So what is it?

[proud hull]

@feral ice with more examples, you can plot a better graph. Currently, you have (1000, 2) and (30, 6), which we can easily find a line formula of y = -2/485x + 594/97

[shadow saddle]

nvm i figure it out

thanks for the advice

[charred vale]

what do i do if BP behave incorrect when put on the level?

[proud hull]

Troubleshoot the blueprint, hehe. We need more specifics.

[charred vale]

in viewport it spawning lights as it should

[mortal wharf]

Anyway to filter what a box brush should remove?

[charred vale]

but when put on the map the lights are missing

there's no even light icons

[proud hull]

Did you compile/save the BP?

[primal smelt]

@earnest tangle have you tried "Find Input Key Closest To World Location"? You plug in the spline, plug in a scene component and it should give you the exact position along the spline.

[charred vale]

@proud hull sure

[maiden wadi]

@charred vale What kind of lights are those?

[charred vale]

@maiden wadi spot

it uses a socket on the mesh to place itself

[primal smelt]

Is there a way other than hit bones to determine where abouts an actor has been hit? I have a grapple hook that fires out like a projectile and essentially I want it to "stick" to the exact position on the actor and follow that position while they move.

[proud hull]

@charred vale are those lights directly added to the actor hierarchy or are they spawned through logic (blueprint nodes)?

[charred vale]

@proud hull oh my bad i forgot to transform world vector to relatve

[proud hull]

Ah, so they were in the world, just the wrong location, hehe.

[charred vale]

ok next thing. i'm using a sockets to place cables and lights. in bp, how do i get all sockets with a specific names?

[proud hull]

Should be a get all sockets by name node.

[charred vale]

currently i'm using "get all sockets" to set the cables, but i need only sockets with "cable" names

[maiden wadi]

@primal smelt How are you updating the grapple's location? I doubt you'll find much beyond attaching your grapple to the mesh hit at the relative location from the hit bone.

[proud hull]

Test if the name contains "cable".

Might need to convert the name to a string first.

[maiden wadi]

Actually, I just remembered a niagara rope. You might be able to do the visuals with a particle system pretty easily based on the hit polygon. Won't help gameplay too much though.

[charred vale]

it's a bool. if there's a way to get just another array but only with the names i need

[proud hull]

Add a branch before your validation check and use that bool.

Run that contains node off the individual name, not the array of names.

[primal smelt]

@primal smelt How are you updating the grapple's location? I doubt you'll find much beyond attaching your grapple to the mesh hit at the relative location from the hit bone.
@maiden wadi Right now I'm still using simple placeholders so I don't have an actual model with a skele rig or anything. I was thinking of using some kind of offset on setworldlocation (on hit actor's location). I suppose I could have a component within the hit actor that is invisible and moves to the location of the grapple point when it hits. How could I make it so that invisible component stays in that relative position when the actor moves and turns etc?

[proud hull]

Current Socket Name > Contains "Cable" > Branch (if true) > Is Valid (street pole)

[charred vale]

there's no individual name

[proud hull]

Convert to string and do the check that way.

[quartz pawn]

@primal smelt but where is the code the pushes it forwards?

[charred vale]

no again

[proud hull]

@charred vale will there only ever be 5 cables? You can also "hard-code" it to check for only those 5 sockets. For loop that goes from 1 through 5 and make a string that you append the word "Cable" and the index, then convert to name and use that.

Last option is the correct one. String->Contains.

[charred vale]

oh i'm blind

@proud hull yeah it's cool now thank u

[primal smelt]

@quartz pawn I only know how to move an actor/scene component along a spline using timelines. What you see here is plugged into the update pin of a timeline. You'd need to create a float track to plug into the alpha of the lerp.

[quartz pawn]

well i want to apply velocity to the bullet

like the sphere

[real loom]

hey, I have a weird issue. I'm rotating a plane so it always faces the camera and it all works fine within the editor, but on the packaged build it doesn't turn, it's just static. any clue as to why this is? at this point I'd assume it's an engine bug. using ue 4.25.3

[primal smelt]

@quartz pawn You could probably come up with a convincing solution by manipulating the play rate

[quartz pawn]

but what i was hoping for is to

apply velocity

and have gravity automatically apply bullet drop like the sphere

wait

i found a projectile component

[primal smelt]

@quartz pawn No idea I'm afraid, why are you using a spline for a bullet?

[quartz pawn]

a spline?

[primal smelt]

@quartz pawn Oh woops sorry I lost track of who I was responding to there :p

[proud hull]

@real loom it probably is not getting passed that validation check.

[primal smelt]

@quartz pawn But the projectile component is what you want, check the details panel for velocity etc. You might have to disable "simulate physics" otherwise it might fire, the projectilecomponent should have its own thing for that

[proud hull]

@real loom Don't you want to check if "Portal" and "Portalcollision" are valid? No clue what you are checking there though, looks like you are checking the class those variables use instead of testing the variables themselves.

[quartz pawn]

how can I rotate the root of a blueprint

[proud hull]

@quartz pawn generally you would rotate the mesh (and all other components) to match the direction of the blueprint.

[quartz pawn]

i know

but i have a capsule collider

on a bullet

so one way

it will point up

and I cant move the root

[proud hull]

@quartz pawn The capsule doesn't need to cover the whole projectile. You can make it a tiny sphere at the tip of the bullet if you wanted.

Otherwise, if the entire projectile does need collision, you can ignore the root capsule and make your own that better fit the shape.

On another note, a horizontal capsule does need to be added. This will make a lot of things easier.

[quartz pawn]

what capsule?

and should the mesh be the parent of the capsule or vice versa?

[primal smelt]

Ok I am so god damn confused right now. So actor: Steve. Spawned projectile: Bob. Bob hits Steve. Steve recognises Bob, casts to Bob and tells Bob "hey, that swanky empty object reference you've got there? Stick my name in that bad boy, cool? Cool." About an hour or so again I was playing around with this to see if it works, and it did! I was able to call a custom event from bob to steve and I don't think I even needed to cast back to Steve, the object reference was enough. That works cool, I delete that articular custom event call and move on with my life.

Now, however, I am trying to get Bob to reference a scene component from Steve. "No" says Unreal. "Actor object reference is not compatible."

"Huh" I say. "Did I try this already? I feel as though I tried this already."

So I try that custom event call again, because I definitely remember testing that.

Nope! Doesn't work any more. Unless I am going crazy, I have not changed anything at all. Is this a known bug? Anything I may have accidentally changed that has screwed this up somehow?

*hour or so ago

Casting doesn't work either, I have to get all actors of class like a pleb

[quartz pawn]

my bullet is still facing me

when i spawn a actor can I like just add 180 degrees to it to make it spawn the other way

[proud hull]

Rotating it is exactly what you need to do anyways. When you add an actor to the world, it will always have default values unless you specifically change them.

[quartz pawn]

but how can i change it

[proud hull]

SetActorRotation?

GetActorRotation > Do what you need to do to that to get it to face the correct way > SetActorRotation.

[quartz pawn]

will try

[primal smelt]

Here is Steve casting to Bob, like a champ

And here is bob sh*tting himself not able to find the "test" custom event. Why is this not working? This was definitely working before.

[proud hull]

@primal smelt remove that self node in Steve and instead connect your B Rope Spline to that set node. You are currently setting a Dude Ref in Steve and not in Bob.

You may need to recreate the set node, as it may not let you directly change the target.

[quartz pawn]

setacotrrotation

just wont work

[proud hull]

@primal smelt wait nvm, I saw that backwards. You have that correct.

[primal smelt]

@primal smelt wait nvm, I saw that backwards. You have that correct.
@proud hull Yeah I was getting even more confused then. I have no idea why this was working and now isn't!

[proud hull]

@primal smelt you are casting to actor, that is why.

Cast to the class that Steve uses instead.

@primal smelt Skip the cast altogether and instead do a validation check on the Dude Ref.

Dude Ref I am assuming is already set to an object of Steve class, so it doesn't need to be cast as another class, but can directly use Steve's functions.

[primal smelt]

@primal smelt Skip the cast altogether and instead do a validation check on the Dude Ref.
@proud hull I've not used one of those before, is that just the "? is valid" node?

[proud hull]

Yep

There are 2 types of validation nodes, one is a pure cast, that you then need to connect to a branch and another is a function that contains valid and not valid paths, you can use either.

[primal smelt]

Ok it states that it is valid

[proud hull]

You might not even need the validation check, but it will prevent errors if the DudeHit event runs without Dude Ref being set.

[primal smelt]

Sorry what do I do from here? I still can't hook up the event, do I need a different is valid node?

[proud hull]

General rule of thumb is to always validation check variables that are being set by another class.

[primal smelt]

Only output pins I have are is valid/is not valid

[proud hull]

Drag off of Dude Ref and you should see the test event.

What is the name of the blueprint you are calling Steve? Is Dude Ref set to an object of that class or set as an actor object?

[primal smelt]

Steve is bDude01 and Bob is bRopeSpline

[proud hull]

Change your Dude Ref variable type to bDude01

[dreamy kindle]

how do I make a seperate mesh folder that uses ue4 skeleton be able to attach over another skeleton in another folder, that has 2 extra non weighted weapon bones? Is retargeting required, if so which as source and target, do the bones need to be set to certain options in advanced panel?

[proud hull]

Or cast to bDude01 instead of actor.

[primal smelt]

This is what is vexxing me though, I swear I was able to just drag off the reference without having to cast or anything else and get that event

[proud hull]

Not as an actor though

[primal smelt]

Or cast to bDude01 instead of actor.
@proud hull This is the problem though, there are several bDudes and I want to update that variable based on which one is hit. Is there a better way of doing this?

[proud hull]

The actor class is built-in to UE and unless you changed the C++ code yourself, it will not have any custom event you created in it.

You need to make a parent class for all your dudes that will share common code.

Actor > ParentDude > Dude01, Dude02, etc.

[primal smelt]

You need to make a parent class for all your dudes that will share common code.
@proud hull Ah I see, then do I do an all actor of class on that parent class?

[proud hull]

Not all actors of, you already are saving the dude ref variable.

You would then cast dude ref to the parent class.

See the note in your 2nd screenshot. Dude Ref is already an Actor class, which is fine as long as the parent dude class is a child of the Actor class.

[primal smelt]

Ok gotcha, I'll start looking into that. I have no idea what I had done before but going forward rather then deleting little experiments I am going to comment them out because I did something to make this all so much simpler! I probably can't remember exactly what I had done but I thought for sure I was able to just get a direct ref before

[proud hull]

If you make a parent class, you can skip the cast by setting Dude Ref as the parent class instead of Actor class. Since you are using Actor class for Dude Ref, you will always need to cast to the child class.

[trim matrix]

How could I make some eyes follow my character like this? 0:37 -1:00
https://www.youtube.com/watch?v=XQvYTFJCezk

[proud hull]

Look At Rotation

@trim matrix

[primal smelt]

If you make a parent class, you can skip the cast by setting Dude Ref as the parent class instead of Actor class. Since you are using Actor class for Dude Ref, you will always need to cast to the child class.
@proud hull Ok cool thanks, really appreciate it 🙂

[trim matrix]

@proud hull But wont that just rotate the entire object?

I have the eyes as the same object

[random ginkgo]

@trim matrix No, it will set the orientation so it looks at the player

[proud hull]

@primal smelt learning to use the parent/child hierarchy will help a lot. All common code should always go into a parent class or a component that can be added.

@trim matrix depends on what you tell it to rotate. You can get components of an actor and rotate them individually.

For example: BP_Eyes > Eye1, Eye2. Don't rotate BP_Eyes, rotate Eye1 and Eye2 individually. Being components of BP_Eyes, they should automatically be created as variables too which you can access.

[primal smelt]

@primal smelt learning to use the parent/child hierarchy will help a lot. All common code should always go into a parent class or a component that can be added.
@proud hull Yeah I knew I would have to take a proper look at it soon enough, I got a bit sloppy as I was just testing a bunch of one-off use mechanics. Definitely going to reorient myself towards object orientation as I start to properly work on a prototype

[proud hull]

@primal smelt if you ever find yourself copying and pasting large chunks of code (nodes) from one BP to another, then that is a clear sign it should be contained in a parent class, function, macro, component, etc. so that the multiple classes can all access the same code from one location. So much easier to edit in the future too. Imagine if you had 100 dudes and they all needed the same edit.

[primal smelt]

@primal smelt if you ever find yourself copying and pasting large chunks of code (nodes) from one BP to another, then that is a clear sign it should be contained in a parent class, function, macro, component, etc. so that the multiple classes can all access the same code from one location. So much easier to edit in the future too. Imagine if you had 100 dudes and they all needed the same edit.
@proud hull Haha yeah I had created a template bp that I would duplicate. I knew it wasn't the right approach, I was just eager to get stuck in. I am actually now refining, cleaning up everything that I have so I may as well start doing things properly haha

[proud hull]

Haha, instead of selecting "Duplicate" use "Create Child". The simple way to use the parent/child hierarchy. 😁

[primal smelt]

Haha, instead of selecting "Duplicate" use "Create Child". The simple way to use the parent/child hierarchy. 😁
@proud hull That is very helpful! Can I change the parent of my prexisting dudes? Can that only be done in c++? When I click the "Actor" button at the top right of bp it opens visual studio

[proud hull]

Yes, you can reparent any blueprint you have created.

File > Reparent, I believe.

[real loom]

@real loom Don't you want to check if "Portal" and "Portalcollision" are valid? No clue what you are checking there though, looks like you are checking the class those variables use instead of testing the variables themselves.
@proud hull you might be right. I missed the validation check, I believe it's a leftover from when I was debugging something and it was throwing errors. but my dumb question still stands, if it's working in the editor, shouldn't it also be working on the packaged build?

[proud hull]

@real loom not necessarily. The packaged build will only include the files that it thinks it needs unless you specifically add in other files that may be missed. That validation check may have been referencing something that didn't get packaged. Or the way it is currently setup may cause packaged builds to think it is referencing NULL instead of BP_whatever.

[real loom]

fair point. gonna try messing around with removing it and report back the result. thanks a lot for your suggestion!

[proud hull]

Removing it should solve the problem as long as Portal and PortalCollision are valid, which I am assuming they are since they are probably actor components.

[real loom]

yep, they're actor components

[primal smelt]

File > Reparent, I believe.
@proud hull perfect, thanks again!

[dreamy kindle]

guys if I have a UE4 marketplace character rigged to epic skeleton, and I want to attach it to a skeleton that is UE4 + camera bone and weapon bone, when I assign the character to the updated skeleton with extra bones, they are greyed out and cant be accessed?

It says "this bone exsists on the skeleton and not the current mesh"

[trim matrix]

@random ginkgo sry I am kind of a noob should I import the eyes without rigging them?

[random ginkgo]

@trim matrix I think it might be best, since you're manually controlling them

[trim matrix]

Should the eyes be the same object or seperate when importing?

[random ginkgo]

@trim matrix Maybe import just 1 eye and make 2 copies and apply the same logic to both?

That way they go cross eyed if the person is at the middle

[trim matrix]

ye thx

@random ginkgo How should I make it look at the player transform again?

[real loom]

@proud hull sorry for tagging you again, but thanks. it worked!

[proud hull]

@real loom no problem. Glad it worked.

[random ginkgo]

@trim matrix So, in your actor, OnTick, set the orientation of each eyeball to a LookAt rotation targeting the player or whatever they are looking at

[plain sigil]

How do i replicate (play sound at location)

[weary jackal]

Anyone can suggest a good way of skeleton dismemberment based on shoot(let's say line trace hit ). Something like gore system in zombie games
@weary jackal 🤓

[plain sigil]

need help replicating sound!!!

[quiet valley]

@plain sigil i think you should make a call to a server function and spawn the play the sound from there

[plain sigil]

@quiet valley my problem is that everyone can hear the sound where ever they are

[quiet valley]

@plain sigil can or can't ? because you stated you need to replicate as they can't hear it

[plain sigil]

they can

but i dont want them to hear the sound where ever they are

only at the location that the sound is being played

[quiet valley]

then you need to define a distance or hearing

and play around with sound atenuation

[plain sigil]

how do i do that

[quiet valley]

https://docs.unrealengine.com/en-US/Engine/Audio/DistanceModelAttenuation/index.html

not the easiest topic I see, but playing around a day maybe, you will get it

[primal smelt]

@proud hull Hey mind if I pick your brains a bit more about parent/child casting?

[plain sigil]

@quiet valley nice! thanks i got it worked

[primal smelt]

Ok so I'm pretty new to this and just starting to get my head wrapped around doing things properly with parent/child classes and what not. I have a projectile where its effect will depend on what it hits. I'm trying to avoid having cast nodes specific to every actor it could potentially hit, so how would I tell that projectile what it has hit?

[gritty elm]

my line trace is not hitting proper when i set simulate physics to true for static mesh

[primal smelt]

The problem i have is that I am doing this within the blueprint of a spawned actor so I cannot get a direct reference of the parent blueprint

[quiet valley]

@primal smelt I woudl say, go with interfaces..

@primal smelt then implement the "OnHit" directly on the hited object

[primal smelt]

@quiet valley I do have BPIs on my reading list, guess I'll bring that forward. I wanted to have the code in the projectile though seeing as there will only be one spawned at any given time whereas there will be tons of actors it can hit at any given time. The problem though is getting the projectile to pull component references from the actor it hits.

[quiet valley]

why is that a problem? I think its the easiest part..

in the moment it "hits", you get an actor/object

just check if that actor does have the interface implemented, and if it does, call the impl

that should trigger the object implementation effect you want for every object

[wind harbor]

When I add a new Asset in the Asset manager, Unreal adds an extra Map and PrimaryAssetLabel next time I open the project.
Is there a way to not get these doublets???

Especially annoying when unreal complains about it too

[primal smelt]

@quiet valley Well its a problem because I've been doing it wrong and lack the necessary knowledge lol

[quiet valley]

hahah

post a pic of the projectile hit bp

[primal smelt]

@quiet valley Ok so its in a bit of a state at the moment because I was able to send a ref from the actor hit (Dude Ref plugged into that equals node) which worked but if I try to get component information from that ref it doesn't work. I will research BPIs but if you could give me a heads up on how I would look for said BPI from this event hit that'd be a huge help 🙂

Or from what I can gather, how to check if an actor has inhereted said BPI

[quiet valley]

im not sure exactly but I think you just need the "Other" param

[random ginkgo]

@primal smelt Cast is how you check if an actor (or any class really) inherits from another class

If you cast and you get a result back, then it inherits from that class

[primal smelt]

Yeah so I had other plugged into that equals sign and it works in so much that I can execute code from this BP but I still cannot get anything from what it hits

[quiet valley]

like this..

the Execute Command is custom, but that should be your "OnHit" implementation

of the object, you know?

[primal smelt]

@random ginkgo I was discussing this with somebody earlier and casting wasn't the way to go. Its to do with how I am giving the reference to the projectile, I think.

@quiet valley That looks very promising indeed, thanks!

[quiet valley]

try that one and let me know if it works

[primal smelt]

@quiet valley Its getting late where I am so I'll be winding down, gonna read up on BPIs and then I will try what you suggested in the morning 🙂

[quiet valley]

sure thing

good night!

[maiden burrow]

how would i get the world location of a pawn using casting

[haughty ember]

get actor location

[tight schooner]

You don't even have to cast if all you're doing is getting actor location

It'll work on any actor reference

[maiden wadi]

Unless they're assuming that casting somehow gets that reference for them. Seen an influx of that again lately.

[surreal lantern]

trying to create a moveable plataform

any1 knows if its possible to create interpolation without using any animation

I was just able to teleport the plataform instead of create movement

[maiden wadi]

Usually most designers will just create a timeline for simpler platforms. Lerp their location between vectors. Really depends on your use case though.

[surreal lantern]

kinda of a elevator

timeline, so its really impossible without animation

[maiden wadi]

Timelines have nothing to do with animations.

[surreal lantern]

there isnt a node capable of create interpolation just giving 2 different points like

a starting location vector

and a end location vector

[maiden wadi]

Sure there is. You don't even need a full vector if you just want it to go straight up and down.

[surreal lantern]

I want but not in a teleport way

[past patrol]

Does anybody know how I would make a slingshot movement system? Like the one found in Angry Birds.

[maiden wadi]

What exactly do you mean by 'teleport' way? You have to move the object. Most simple movement is done by setting the object's location in very small increments every frame modified by a delta seconds method that makes it framerate independent, so that the elevator would move at the same speed on a 30fps machine as it would on a 120 fps machine.

[surreal lantern]

this is the most used way or people use the timeline u mentioned ?

[dreamy kindle]

I put a UE4 skeleton model with a new skeleton asset of new UE4 skeleton w/ bone from root and head. The new bone additions dont seem to be working with ue4 skeleton model. Any help appreciated if this is possible to do!

https://gyazo.com/e7d6c16f45fed36a1359098ec0330323

says this bone only exists to the skeleton and not the mesh, any idea how to unlock?

[maiden wadi]

@surreal lantern Are you working in single or multiplayer?

[trim matrix]

yo, anyone know why my particles won't play in animaiton notifier?

I get a ssuper weird error that I'm pretty sure is super bugged

[surreal lantern]

@maiden wadi single

[trim matrix]

https://gyazo.com/d98e677910078b67a70e95d83c3c65ef

it comes out looking all messed up like this

it just cuts off after set to

[maiden wadi]

Do you want the elevator to go straight up and down, and do you want it to simply keep moving back and forth?

[glossy summit]

sorry to interrupt, shouldnt this be the way to acess other BP method?(custom event)

[maiden wadi]

@glossy summit It is. Assuming that you've populated CrashBP with something.

[glossy summit]

Yeah it has that specific event and a print, but it isn’t being called

[maiden wadi]

Are you getting an Accessed None trying to read property CrashBP after clicking that button and closing PIE?

[past hazel]

collision remaining after moving static mesh. what could be the problem? Use Complex Collision As Simple does not help

[maiden wadi]

After moving the static mesh where? What static mesh? What Actor is it a part of? How do you know the collision is still there? How are you moving the static mesh? Are there any other components in the same actor that have collision?

[glossy summit]

@maiden wadi I don't think so, converted my asset into BP, then added custom event, and public variable in the screenshot tried to call from there

[maiden wadi]

Can't say much else. I'd put an isvalid node before that print on the button click, make sure that CrashBP is valid. If it's valid, something is stopping it inside of the ChangeMaterial function in the CrashBP.

If it's not valid, you need to check where you're populating the CrashBP variable, because whatever reference you're setting it with wasn't a valid one.

[odd ember]

@glossy summit did you use the dispatch event that comes with the button?

[fallen tartan]

hey guys, is there any way to do array shuffle but with a stream?

nvm, i guess i just loop the array and swap elements with random positions

[chilly lodge]

Hello. How do I add pysics to a custom BP, Actor i have created it has 2 components

[wicked magnet]

If I'm teleporting the player between one spot and another, does it matter too much what kind of actor I am using to set teleport locations? I've used targets, but someone else is wanting to use pawns, and to me, I'd rather not use a pawn, but not sure if it really matters?

[chilly lodge]

Im not sure about that mate. sorry

perhaps you can help me thou

[glossy summit]

i managed to see with other direction of function accesed none error thanks authaer and cranzestebogen, ill try to fix it

[trim matrix]

Why cant I set an actor in my actor array variable? I am not referencing it and when I set any index in the array to a value it immediately reverts to None again 🤔

It is visible and I am trying to change it in editor not through blueprint

Actually did some more testing and it seems to only work for items after the 6th item in the heirarchy Why is this happening 👀

It also seems to be an issue on all actors that I try to set that variable with. (If I make another bp with another array of the same kind)

All the variable settings if you need them

My bad 🤦‍♂️ I was on the master stream level trying to reference a streaming object

[mental cliff]

Hey, I am trying to make these in Blueprint to follow the direction of the drag of the actor. I got it to work but I am struggeling to re apply the rotation from the parent actor.

I found some tutorials but Iam unsure if I messed up but it did not work. You got any hint or idea on how to fix it?

[vast lion]

How do I use Out Row here?

[south meadow]

@vast lion drag it out.. and break the struct (whichever you expect it to be)

[pulsar moss]

Why is this bitmask returning zero? I expect one here.

am I doing this bit check incorrectly?

[trim matrix]

Anyone know which node is param(0)?

I don't know the hotkey for it

@pulsar moss what were you expecting it to return?

@pulsar moss you're using integers which only returns numbers. And you're not comparing anything to sum?

It's not going to return the number of the checked items in the list because you're not asking it to count anything, and you're not asking it to return anything

[vestal plinth]

how do you use z-kill?

[pulsar moss]

I expected it to return non-zero

I'm not asking it to count anything

I have a bitmask (0 is false, 1 is true, 2 is true, 3 is false), and I am doing a & bit operator against 1, which should return non zero, correct?

also it shows as int but the tooltip correctly identifies the variable as a bitmask integer

I convert the enum (byte) to an int and do a bitwise &, is that not right?

ah there we go, found the solution

need to convert the int properly with exponent

[zealous moth]

i set a couple of soft references in an array in my level and in a box collider actor. When overlap is ending, i would like to respawn all those actors... is this the right way to go about it?

[trim matrix]

@pulsar moss My bad I thought you were trying to get the items that were checked... lol

@zealous moth a foreach loop is a good way to do that

[zealous moth]

the issue isn't the for loop, it's the soft actor ref

i don't think i understand what it does

[teal burrow]

@trim matrix param(0) in material editor?

[trim matrix]

@teal burrow yeah but I figured it out, thanks man

[teal burrow]

Aight

[trim matrix]

@zealous moth I don't really understand. That is exactly how most people do it I believe

If you're asking if it will cause problems in the future then no it won't

[teal burrow]

Cast to soft class reference then spawn foreach

I don't really know either, seems like a vague question

[trim matrix]

agreed

[zealous moth]

-_- do you guys even use the engine?

you can't do much with that soft ref in blueprints

hence why i am asking if a soft ref is even used for this

[teal burrow]

Async load asset?

[trim matrix]

You said you set soft references in an array. Then you said is this the right way to do it.

You're not giving any context on what you are trying to do

It seems more like you are using a soft reference and you don't even know what a soft reference is used for.

[teal burrow]

Tbh they can be tricky until you figure out that it's a bit more complex than just the reference

[zealous moth]

🙂

[teal burrow]

Thing with them is that they're references without requiring the referenced object to be loaded

Hence, soft reference

To make sure it's loaded, you'll need to either async load or primary load, depending on your use case

It's preferable to use async as it avoids some render thread stutter

When you have a static mesh in a BP that you've loaded, it's a hard reference and requires the static mesh to be loaded too

Which can become slow, depending on how many hard references you have

Casting to a class also hard references that class

Beware of how many things you hard reference

[heady jay]

Currently trying to display a ui on all players screens, but with my current code, it only does so if the function is called by the player in the main viewport/editor and ran on another player. Any ideas? Here is the code:

[tardy hollow]

I have an AI character and it's associated controller, when I move the character a certain location using SimpleMoveToLocation on the Controller class, the mesh is oriented perpendicular to where it's going

Anyone knows how to fix that?

[earnest tangle]

You need to rotate the mesh 90 degrees

that should fix it

[tardy hollow]

Yep just tried that, that works

Thank you!

[earnest tangle]

I'm not sure why they seem to face the wrong way by default it's a bit weird but yeah :)

[tardy hollow]

I think it's the mesh default that is sideway, rotating make it point towards the forward vector

[maiden wadi]

Modeling and animation programs. Some use Y forward, some use X forward.

[dense mica]

Does set actor scale 3d also affects the collision?

My collision set properly but its not overlapping

[untold void]

hello where can I find my gameinstance class?

[dense mica]

you can create a new one inherited from base gameinstance class

or if you are looking for the base class itself look for Engine Classes folder

enable context sensivite option if you cant find it

[untold void]

@dense mica Thanks

[exotic cradle]

How come I can see that an object was spawned using print screen and see it pop up in the level overview tab but when I look around after hitting play the object it said was spawned is no where to be found

https://gyazo.com/064b9327cff87c27d397891b1fc63856

[jade falcon]

Hello, I am new to unreal and am having a problem. I made a blueprint to make an ai walk back and forth on a platform. Well I want the enemy to hurt the player if it touches the player but, it keeps lowering the player health anytime it runs into a wall. I have not been able to figure out how to make it only trigger when it collides with the player not other objects. It is a 2D game.I will post screenshots of my blueprint. I have been Googling all day trying to figure out a fix but have not found anything, I am using Unreal 4.25.

[zinc portal]

@jade falcon You are not doing any checking on what the collision is with. On the "on component hit" node there is the output pin called "other actor". You need to check if it matches the player and only then do the Health reduction.

@jade falcon This is not exact copy of yours but I hope it helps.

[jade falcon]

@zinc portal you are literally a life saver! I have been following tutorials on Youtube and not one of them ever showed or explained that. I figured with how intuitive the engine was it had to have a simple solution and I was right. Thank you so so much 😄

[zinc portal]

I am pretty noobie myself. started in March. glad to help

[jade falcon]

I ended up doing it like that but I think im gonna change it to be like yours since it seems like a better solution to learn better habits.

[zinc portal]

👍

[primal moss]

https://puu.sh/GERww/b7474da2da.png

Hey guys, I'm trying to make my burstfire work on server-multiplayer stuff

but for some reason I can't make the second customevent replicated

https://puu.sh/GERz3/1103c06f91.png

This is the overall firing mechanism

If someone has an answer, please ping me

[opaque blade]

Workflow question here

Often when I introduce a new variable to a base blueprint / abstract one, inheriting blueprints null the new default value
i.e. adding a FName variable to add ability to change the DynamicMaterialInstance Vector Property I want to change, however the default value entered in the base blueprint is just "None" in the inheriting ones

Is there any way to "detect" that issue? I mean I didn't set the value explicitly to None here.. which is kind of annoying when suddenly nothing works anymore 😱
@opaque blade to whoever this is interesting I just could reproduce the bug

It happens when you use "Promote to Variable" on fields with an actual value

[earnest tangle]

I've noticed this on occasion as well, it's a bit annoying

You have to manually go and updated all the child BP's

[haughty ember]

but for some reason I can't make the second customevent replicated
@primal moss What do you mean by the second?

[opaque blade]

You have to manually go and updated all the child BP's
@earnest tangle yeah it also happens on instances of that blueprint which is woah 😄 the value was even hidden (not exposed)

[primal moss]

Oh, i mean - you see how there's a Fire Burst, then a Fire Burst Shot - the second custom event, Fire Burst Shot, doesn't have the option to be set to Replicated in the details panel

[earnest tangle]

oh wow really

that's pretty bad :\

[opaque blade]

Yeah but this may have changed in later version for this project where it just happened we are using 4.24

[primal moss]

If the issue for me is happening 'because' I'm not replicating the actions to the server, because Fire Burst Shot is the event that actually does the firing loop for my burst fire gun, that may be why. But since I can't set Fire Burst Shot (custom event) to Replicated on server, it doesn't work at all

[opaque blade]

oh wow really
@earnest tangle yup but maybe restarting the editor fixes it also idk we tried reloading the level, issue was still there
At last I just looked at the instance value through Instance editable and it just was (0,0,0)

Might have to dig into and may test it on 4.26 to form a bug report later today

[haughty ember]

@primal moss Where is the bool on the first branch connected to btw, if it's relevant?

@primal moss Anyway notice that FireBurst is only called on the server, at least from your pictures.
so calling Fire in there will simply do it on the server, and then you're calling ServerFire which should replicate to server, if Owning client. I could be wrong here, but i don't think that will do anything - since the server is not an owning client.

[primal moss]

hmm. To be honest, I don't have much of a clue how to fix this. The first branch I think you're referring to is the branch that checks for what type of gun it is

I could just change the FireBurst to 'on owning client' so when the client fires it, then it does all of the functionality?

hmm, no, that didnt fix it

I could make it reliable too

[haughty ember]

I think that should work. Print strings to see what is/isn't being called?

[primal moss]

Yeah, there's a print string in the bottom that should print 1 2 3 when the bullets are being fired, but the implication is that it's not reaching the FireBurstShot at all

I'll try doing it on a different client

nope, doesnt work

[haughty ember]

is Fire Burst happening?

[primal moss]

I'll do a check

(with a printstring)

Huh, it's not happening at all. Then... maybe something's screwed up with my weapon type assignment

I'll show you the BPs but it doesn't seem like there's anything wrong there

I'll also show you the branch

(that you asked about)

[haughty ember]

Or could be the settings on the FireBurst custom event. Put a print string before calling that method as well?

after the branch, that is

[primal moss]

Ahh, good call

It's not even reaching the branch. Then there's something wrong in the type assignment, but I don't see what it could be

https://puu.sh/GESB6/dd92276ec5.png

Here, it pulls the gun's weapon type but I wouldn't know why it doesn't work

It worked before for the shotgun but the logic for the shotgun is contained in the gun itself, while the burst fire is controlled externally (I'm a noob at this kind of thing so I wouldn't know how to make them unified)

[haughty ember]

I don't really know what you mean by contained-controlled vs externally, but where do you set the gun type?

[primal moss]

Weapon pickup, I'll show you that

Oh, basically:

Shotgun's spread pattern happens in the Fire function of Gunbp while burstfire works in Playerbp, the thing you're looking at right now

it's because I can't use the timer delay thing in the fire function

[haughty ember]

Not sure how that's relevant but ok

[primal moss]

https://puu.sh/GESDn/b93b166cdc.png

https://puu.sh/GESDx/ce67dba44a.png

[primal smelt]

(Part1/3) Ugh reaching the end of my wits with this one. So I have a spawned projectile with a "hook" component, amongst other things. I want it so when the projectile hits a "dude" the dude moves a scene component called "hook receipt" to the position where it was hit. The projectile will then use a timeline to keep the hook at the location of the "hook receipt" (should be recipient really but f it). Problem is getting a hard reference of the hook receipt for the projectile is proving to be an utter nightmare. So I'm new to BPIs, the "dudes" abide and inherits the BPI and here are the outputs of the function.

(Part 2/3) Here is what the "dudes" plug in to these outputs

(Part 3/3) And here is the code in the projectile. Highlighted red circle is my problem. I just cannot get this scene component from the "dudes" to play nice. Can you see what it is I am trying to do? Could somebody please let me know what I am doing wrong here.

[primal moss]

Basically - the Weapon Pickup spawns in with a type, rarity and other stats, though the rarity doesn't matter besides its visual appearance. Most of the variables in the GunBp that's being set in the big chain of setting aren't replicated except Magazine, which is RepNotify.

[haughty ember]

@primal smelt Looks like your variable Hook Receipt Ref is of type Object rather than being of type Scene Component

[primal moss]

The relevant ones are public, which is why the cast can get 'em I believe

[indigo osprey]

Hey there, I am currently struggling with putting some kind of delay in my Blueprint Logic. I have a custom event which triggers a for loop running through a text array and printing the strings. In each iteration there should be a delay for example 5 seconds before the loop continues to execute.
Somehow I cant get it working. When I put the delay inside it will only output 1 element and dont continue after the first delay. If I dont put the delay in it just prints all strings of the array. Any ideas?

[haughty ember]

@primal moss If other variables are not replicated, including weapon type - then it will only be set on the server

[primal moss]

That's really quite strange - picking up the gun updates the other corresponding stats without issue

[haughty ember]

@primal moss Note above in your branch to check the weapon type, is being called after an Input event. Input events always happen on the client (which make sense - the mouse/keyboard/controller/etc are on the client, not on the server)

Well there is a Replicated property on an actor. See if it's checked?

[primal smelt]

@primal smelt Looks like your variable Hook Receipt Ref is of type Object rather than being of type Scene Component
@haughty ember You beautiful, beautiful person! I knew I had to be doing something stupid and sure enough I was! Thanks ever so much, that sorted it 🙂

[primal moss]

Which actor in particular?

oh, wait

I'm doing the replication in the c++. But before you ask, I believe type is also replicated there

[haughty ember]

@indigo osprey Delay uses a key-based callbacks. That is, when you call delay it will add the callback based on the node. So if you call Delay 5 times in a row (or in a loop), it will actually only be set once.
You can use recursion for that though.
Create a function that accepts an index and (1) prints the string from the array, then (2) Calls the same function with the index value + 1

[primal moss]

void AWeaponPickup::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
{
    Super::GetLifetimeReplicatedProps(OutLifetimeProps);

    DOREPLIFETIME(AWeaponPickup, Rarity);
    DOREPLIFETIME(AWeaponPickup, Type);
    DOREPLIFETIME(AWeaponPickup, BulletDamage);
    DOREPLIFETIME(AWeaponPickup, MuzzleVelocity);
    DOREPLIFETIME(AWeaponPickup, MagazineSize);
    DOREPLIFETIME(AWeaponPickup, WeaponAccuracy);
    DOREPLIFETIME(AWeaponPickup, PelletCount);
    DOREPLIFETIME(AWeaponPickup, FireRate);
}

    virtual void GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const override;

    UFUNCTION(BlueprintImplementableEvent)
    void OnPickup(AActor* ActorThatPickedUp) override;
    UFUNCTION(BlueprintCallable)
    void OnGenerate() override;

    UPROPERTY(Replicated, VisibleAnywhere, BlueprintReadOnly)
    WeaponPickupRarity Rarity;
    UPROPERTY(Replicated, VisibleAnywhere, BlueprintReadOnly)
        WeaponPickupType Type;
    UPROPERTY(Replicated, VisibleAnywhere, BlueprintReadOnly)
    float BulletDamage;
    UPROPERTY(Replicated, VisibleAnywhere, BlueprintReadOnly)
    float MuzzleVelocity;
    UPROPERTY(Replicated, VisibleAnywhere, BlueprintReadOnly)
    int32 MagazineSize;
    UPROPERTY(Replicated, VisibleAnywhere, BlueprintReadOnly)
    float WeaponAccuracy;
    UPROPERTY(Replicated, BlueprintReadOnly, VisibleAnywhere)
        int32 PelletCount;
    UPROPERTY(Replicated, BlueprintReadOnly, VisibleAnywhere)
        float FireRate;

[haughty ember]

@primal moss I don't see weapon type here either. But anyway, let's verify it that way:
After the "Set WeaponType" node above, call a function that will execute on all clients (if needed use 2, one to call the server, than the server calls it on all clients), and it will print the current weapon type.

[primal moss]

At least, I think that's why Shotgun is still working, though i'm a little baffled why it's not even going into the burst fire true branch since if the gun can detect itself being a shotgun, why can't the cast detect it being a burstfire

weapontype is in the gunbp rather than the playerbp so I was retrieving it via a cast

so I guess maybe the bp is struggling to get it from the cast? In the gunbp it always has the shotgun type 'known'

[haughty ember]

Honestly I have no idea anymore. Your project seems to be bigger and it's hard to understand all the pieces like that.
The suggestion above is one way to debug it, but the idea is you take every step of your process and see where it fails, or not.

[primal moss]

Alright, well, I'll try the debug first. So are you wanting me to make a new custom event after the set type that's.... replicated to everything and prints current weapon type?

[haughty ember]

I don't know if it's being called on the server or client so I can't fully answer that, but I want it to run on both the server and on all clients

[primal moss]

Sorry, the part I 'don't know' how to do right now is actually getting it to run on both the server and all clients. Are you telling me to make a whole separate function, or is a custom event that I.... set replicated on that prints string fine?

[haughty ember]

If it runs on the client - you need a custom event that will replicate to server, and another custom event that will replicate to all clients.
If it runs on the server - you need a custom event that will replicate to all the clients.

[primal moss]

https://puu.sh/GESOd/79ab4c14cd.png

I just did a raw print string that returns the type

Burst is being set properly

so the question is why the branch == enum refuses to acknowledge it

[indigo osprey]

@haughty ember okay understood but where do I place the delay then ? Just checked and saw that I cant call delay inside a function

[haughty ember]

@indigo osprey Use a custom event instead then

@primal moss It's being set on the server. I want to see that message on all the clients as well.

or just the owning client of the gun actually

[primal moss]

Ah, but, that's the thing - the type setting occurs after I get a specific client to walk over the gun and set itself

[feral ice]

yo i have a kinda simple question. I want to see for how long ive been holding down the leftmouse when i release the button

[haughty ember]

Ah, but, that's the thing - the type setting occurs after I get a specific client to walk over the gun and set itself
@primal moss then print it.

yo i have a kinda simple question. I want to see for how long ive been holding down the leftmouse when i release the button
@feral ice Use a variable and set the current time when it's pressed. On release, subtract the current time from that variable

[primal moss]

That was the node that was printing it. I'm not sure how to replicate it to all the clients like you said to, unless you want me to do that weird multicast thing?

[haughty ember]

it's not werid, but yes

[feral ice]

hwo do i set the current time? Cuz in python there is a code timt.time() that gets you the curretn ttime in secounds from 1970

whats the node called in ue4

@haughty ember

[primal moss]

https://puu.sh/GESTj/bcb5cf12a0.png

Would this be sufficient?

[haughty ember]

@feral ice Right click the empty area in blueprints and look for "time". You should fine it quite easily

@primal moss I would remove that DestroyActor for now, just for the print message. Not sure how well it would work with the replication

[wet steppe]

anybody know how to create a hole in landscape at the location of my blueprint

cast to the visibility mask layer

[primal moss]

Hmm, I ran it, but the console just says it's from the server twice. Though the main screen I'm viewing the console from is the server 'player' I think.

[wet steppe]

everything I connect does not inherit. Where should I build it at least? within the actor blueprint on in the level blueprint>

[primal moss]

Okay, doing that shows the client + the server all with the right weapon type

Wait, no.

[haughty ember]

ok, then print the weapon type before the branch as well then

[primal moss]

Okay, if I did it with the destroy actor, it only does it on the server

Without the destroy actor, it does it on all clients

which is again, kinda strange since functionality worked perfectly fine in terms of assigning stats - it's just that the burst fire type is never recognised.

Ok, gonna test the new printstring

Okay! Found a strange bug: the printstring says it's single.

so externally (in the playerbp after the fire button is pressed), the server/clients all think it's single, when inside of the gunbp (which is attached to the player), it's a burst.

[haughty ember]

perhaps they are different variables? hard to see from here

[primal moss]

Hmm, well. If you mean the type, I'm unsure that would be the case.

In the pickup bp (the ones that spawn in the world and change the equipped gun's stats), I'm directly setting WeaponType to be the type from the C++ scripts

same enum

and in the playerbp, it's also the same enum because I'm able to select it to check if it's BURST or not

the setting seems fine, though I did mention that the clients only seem to set it if the destroy doesnt work - but the thing is that the stats are assigned even with the destroy

Gunbp's default enum for the gun is single, though

[haughty ember]

Different variables, not different types.

how does the gun gets a reference to the player?

[primal moss]

https://puu.sh/GET3n/5020fe3281.png

Oh, but that's what I mean, it should be the same variable retrieved each time

the only time it's different is the weaponpickup setting the type, but that one is where the type originates from and the multicast print confirmed it to be correct

the gun itself doesnt really call anything - it's specifically the fire function being called externally after casting

[haughty ember]

@primal moss Let me correct something from before

[primal moss]

so there's quite a confounding paradox: the enum retrieved from the gun itself in PlayerCharacter is always Single, despite it being set otherwise

[haughty ember]

Remember those print strings where you printed the type?
Don't print the type variable of the actor it self (Pickup), but rather print the Weapon Type variable on the GunBP

@primal moss

[primal moss]

Hmm, gotcha, I'll try doing that

oh drat, I see what you mean by that

I was feeding the wrong variable into the print string

I shouldve used the output anchor from the set instead since that's what the gun's type is, not the 'assigned' type from the c++ script

Ah! The server says burst but the clients are single!

(and I got some weird bp errors)

Blueprint Runtime Error: "Accessed None trying to read property K2Node_DynamicCast_AsGun_Blueprint". Blueprint: WeaponPickupBlueprint Function: Execute Ubergraph Weapon Pickup Blueprint Graph: EventGraph Node: Print String

[haughty ember]

Add the GunBP as an argument to the custom event and try again

[primal moss]

though, this still confuses me. If the gun's type is never being assigned, then why the hell does my shotgun work... Oh! It's because the type is a variable contained in the blueprint readable variable, so there it's correct. But since it's not actually on the gun, because playerbp's check does it outside of the gunbp's context, it reads it as single

Hmm, which custom event in specific? the printstring?

Sorry for leading you down such a rabbithole, but I appreciate your patience with me.

[haughty ember]

Hmm, which custom event in specific? the printstring?
@primal moss yeah

[primal moss]

https://puu.sh/GETbv/70797bf4be.png

Like this?

https://puu.sh/GETbT/0aaa7fff09.png

that's the start of the weaponpickup area

(oops, forgot to set the string to the type in that image)

clients are all single, servers are burst

https://puu.sh/GETdG/4657316a21.png

feels a tad redundant though

[haughty ember]

Like this?
@primal moss No. Add an argument to the custom event MulticastPrint

[primal moss]

Oh!

Hmm, do you mean an input?

Not sure how to add an argument to custom events

I've only dipped my toes into 'em

@haughty ember
https://puu.sh/GETho/e8a71b1f8c.png

Okay, how about this? the input/argument's the same one from before though

Same issue, it seems. Server is bursts, clients are singles

[haughty ember]

yeah like that

Same issue, it seems. Server is bursts, clients are singles
@primal moss Right, but now there shouldn't be any error so we can actually rely on that result

So like I said before - you're not replicating the WeaponType variable

[primal moss]

Hmm, alright. I'll swap that right now

Okay, it says everything is burst now

I'll try firing

Okay, NOW it's doing the multiple fires. It's a little buggy though, it doesn't fire it three times.

wait wait