blueprint

[odd ember]

the curve just speeds up the increase

[keen wedge]

Lets say I have 3 enemy types... A, B, and C.... A = 2 per second, B = 5 per second and C = 10 per second... are you suggesting different timelines for each?

[odd ember]

here's how I handle the same idea

those are just curve assets

[keen wedge]

we are venturing farther and farther from what I know with regards to UE4...

I've never used curve assets..

[odd ember]

okay but you do understand that a timeline uses a curve yes?

that's what drives the alpha value

[keen wedge]

loosely, yeah, the line between the keys I add, right?

[odd ember]

yep

the line, or the curve

depending how you want to handle it

it doesn't have to be linear

in your case, you want it to increase over time

so make it quadratic

as in, make your curve look like this

instead of a straight line

[keen wedge]

honestly, this is so beyond me now..

[odd ember]

I don't know what to tell you

[keen wedge]

:(#

maths was not my strong point at school - so quadratic anything is beyond me...

[odd ember]

well you can just look at the visual

and use that

[keen wedge]

I need to understand how this stuff works though, otherwise when it all goes tits up, which it will, I'll be back here asking for help but probably from someone else who'll suggest an entirely different way...

[odd ember]

then I would suggest learning about the graph representation of linear and quadratic equations

it will help you model your data much better

[keen wedge]

This all seems hugely complicated for something I thought would be far more straight forward for just increasing a value over time..

[odd ember]

like I said, it is

[keen wedge]

I appreciate your efforts to help me...

[odd ember]

just use a timer

or tick

if you have your custom value

but if you want to use a timeline

you have to use the timeline

and if you dont want to learn the fundamental idea behind the timeline

then maybe it's not worth pursuing

[keen wedge]

its not that I dont, I just have very limited time, and that doesn't lend itself well to deep diving into the unknown. Timers I really dont like the look of, I hate calling things by a string reference, and I cant pass parameters in... kinda grim..

that just leaves me with tick, which I was led to believe I should avoid..

[odd ember]

use "Set timer by event" or whatever it's called

there is a nifty helper node called "create event"

you can link up

[keen wedge]

I really thought this would just be loop around the timeline over 1 second and then multiply the "part" of that second by the threat per second... add the values up, job done.

out of interest.... the Update execution pin on the Timeline, whats the frequency of that? is that effectively the same as Tick, e.g. for the number of times its called?

[dawn gazelle]

For Enemy A, are you just trying to increase a value by 2 each second

So Second 1 = 2, second 2 = 4?

[odd ember]

here's how I've set up a timer by event

[odd ember]

it's roughly the frequence of tick

[keen wedge]

The only way I can easily explain this, if you consider a thermometre which rises with heat, the enemies are effectively giving off that heat... some give off more... so the thermometer would rise more quickly.

In this case its a threat meter, so the enemies are giving off a threat... some give off more, some less, but based on a per second value....

[keen wedge]

Thats probably part of the reason why my maths isn't working then... I'd be adding up more and more parts of a second multiplied by my threat per second value, which would exceed the total threat per second value, hence the exponentatial growth..

[odd ember]

hence why I said it's not a timeline you should be using for that setup. take a look at that screenshot of a timer setup

[keen wedge]

it wasn't adding +2 every second, its was adding lots of little bits, very rapidly, to one total, which was also being added each calculation...

[odd ember]

and for your own sanity, I suggest considering that any game runs at a certain FPS... frames per second. tick fires once per frame by default, but can be set to any value. it will always sync to the nearest frame

[keen wedge]

Isnt the Timer just going to be literally every second though, and not give me the smooth increases that I wanted?

[odd ember]

world delta seconds is 1 frame's worth of time

1/60th of a second

when using the conventional 60 frames per second

[keen wedge]

I think I'm gunna have to think about this again tomorrow, I came here confused and am utterly fried now... cant think clearly at all 😦

Thanks for your help though, appreciated.

[dawn gazelle]

This would increment the "Desired Threat" by 2 every second. It wouldn't smoothly transition from the previous value to the next, just continually add 2.

If you want it to smoothly transition, then you can use this along with the above timer, and instead reference the "Current Threat" value wherever you want the value to appear to smoothly transition.

[keen wedge]

Thank you, I'll take a look tomorrow morning. Will save screenshots..#

[arctic radish]

isn't that what it wants

[spark steppe]

cast it to your custom hud class maybe?

[frosty bay]

What do you recommend me for saving player cosmetics? (Like fortnite locker that gets saved when you purchase from store)

[arctic radish]

you want to save what the player buys?

so that the game remembers

[frosty bay]

Yes but is an online multiplatform game

(Like fortnite)

[arctic radish]

are you gonna hold them online?

most likely but ima ask anyways

[frosty bay]

Yes

I will use a domain, awardspace and phpmyadmin (mysql)

[arctic radish]

I would probably just make request the cosmetics the user owns whenever they connect and assign them those

[frosty bay]

But how I store the cosmetics that the user owns?

[arctic radish]

in a server

whenever the user buys something just add it to their list of cosmetics

and when they connect just request those cosmetics and add them

[frosty bay]

Yeah but how I store it on the api for request it? (How I send it to api so it gets stored)

[arctic radish]

post request

then use a get request to get it

[dawn gazelle]

You'd have to create some kind of database most likely.

[frosty bay]

Is there a tool for create a database like mysql?

[dawn gazelle]

Not included with UE at all, no. Just letting you know that you'd probably have to create a database somewhere and hook into it.

[frosty bay]

Ok thanks

[storm vigil]

Hi. How can we exclude certain items or actors to be not affected by post process effects like the blur when using a smaller F-stop?

[chrome fractal]

I want to record sequencer at runtime and record scenes like changing material, playing animation is it possible to do all at runtime?. Actually I am new to unreal . can you please help me?

[tawdry mural]

do you have your actor in the sequencer already?

@chrome fractal

[chrome fractal]

No I have to create new sequencer and add actors.

[chrome fractal]

I have a building with changing materials can you please guide me. what should I have to do.

[tawdry mural]

idk what exactly do you need

[tawdry mural]

you can do all that but you have to add an actor to a sequence first

[chrome fractal]

Can I do all at runtime?

[tawdry mural]

no

i mean without sequencer you can change material

[chrome fractal]

Actually I am having a project of building simulation I want to record a sequencer with changing materials, animations and render it to a MP4 video all at runtime. Like Twinmotion does.

[tawdry mural]

idk about that

[chrome fractal]

OK thanks for you reply.

Does anyone have a hint or know about that?

[late cave]

Pawn has an Inventory Manager Component, so it doesn't actually implement this interface... do I need to implement it in the pawn and pass every function on, or is there a better way of doing this?

[maiden wadi]

@late cave Likely easier just to GetComponentOfClass on the pawn, and call the interface on the component that has it.

[late cave]

Hmm, well... I think that's worse since I'm trying to use the interface to reduce the amount of references in my class...

[maiden wadi]

For what reason? Classes being linked only matters when they're linked to a lot of assets or data. And if that data is going to be in use when the things linked are loaded anyhow, that doesn't matter.

Things like your inventory component should be insignificant to memory. If it links to datatables, then any assets in those tables should be softobject pointers.

[tame stream]

I've got a ai in my world, i want to make it so when my player pressed a button the ai moves, how am I able to do a cast to, to an object in the world? like i'm not sure what to put here

[maiden wadi]

@tame streamWhich blueprint is this in?

[tame stream]

this is in the players blueprint

[maiden wadi]

So, all casting will do is allow you to access higher levels of the class on an object you already have a reference to.

To get references you often do things like line traces, mouse clicks, sphere overlaps, getactorofclass, etc.

These all pass objects back as either actors or components depending on the function. You'd take the actor reference that returns and cast that to your submarine.

As for which one to use, that highly depends. If you're just testing, you can just drop a GetActorOfClass or GetAllActorsOfClass. But in most games there's usually a better method.

[tame stream]

oooh so if i do actor of class and i only have one of the actor

that should work

worked! thank you so much

[trim matrix]

Hello guys I have problem with my inventory system I want to make exchange item system when you select an item and press button to exchange it with other item, it is kinda working but the problem is that it doesn't update the "thumnail " of the old item. idk how to fix it
https://blueprintue.com/blueprint/wc17rfdr/
this is the link of my all bp
I will be more than happy if someone can help me
I am fighting with this problem for 2 weeks 😦

[earnest tangle]

You really need to give a more specific example of what's happening and how it's going wrong

You're giving us this huge BP graph to look at

[trim matrix]

okay

so I have system for exchaning item with another when you press button

for example I have in my slot AK 47 and I want to erxchange it with bow, I click on the bow, press T and select the AK47 and it needs to change their places

and I think it works but the first problem I see it, is this that it doesn't update the thumnail of the slot

@earnest tangle

[chrome fractal]

Actually I am having a project of building simulation I want to record a sequencer with changing materials, animations and render it to a MP4 video all at runtime. Like Twinmotion does.

Anyone knows?

[tawdry surge]

Anyone know how to build a "SetViewTargetBlend" node from scratch?
I want more control over the player pawn's camera rotation than it provides. I've tried everything I can think of, but it won't update the rotation without using the aforementioned node..

[maiden wadi]

@tawdry surge Not without setting up the whole system over again on your own. All that function does is sets some values on the PlayerCameraManager. PlayerCameraManager's DoUpdateCamera is what actually sets your camera stuff. But that's all C++ territory.

[tight schooner]

You'll want to ask #graphics about that one

[tawdry surge]

@maiden wadi so if I make a player camera manager and assign it to the pawn, could I access the DoUpdateCamera functionality?

[maiden wadi]

You don't need to make one. If you want to use what is in the engine already, you have to subclass the PlayerCameraManager and set it's class(In the PlayerController I think?) Otherwise you're going to end up building a very large BP system.

It is possible that you might be able to get away with simply creating a new camera actor at the current camera's location, setting view target immediately, doing your rotation work on that to the new target, and then setting the view target immediately to that?

[tawdry surge]

I'll give that a shot thnx!

[marsh citrus]

Hello

I made this, so my character cannot teleport itself al the time, the duration is set to 15seconds.

I wanat to make a progress bar out of it, so i call a progress bar widget and i want to convert it for the display so 0sec = 0% and 15sec = 100% any way to do this simply ? Thanks !

[maiden wadi]

@marsh citrus Current / Max

EG 3.5 seconds divide 15 seconds = 0.233

[marsh citrus]

Wow i did not get that

could you be more specific ? :p

[maiden wadi]

Which way do you want the progressbar to display? Should it be full when they are able to teleport again?

[marsh citrus]

yes

so i guess it's more like at 0 it's 100%

Maybe a delay is not what i should use

[tawdry surge]

He's saying if you divide the current time by the max time (the 15 seconds), you'll get a decimal representation of the progress % when the time is up it'll divide 15/15 and give you 1

[maiden wadi]

You'll want to update that in the widget's tick. You can also use a binding for it, but I prefer tick personally.

What value do you have to measure when you can teleport again? What do you use to compare against your 15s max?

[marsh citrus]

nothing it's just a delay of 15sec

then i call it in the widget like this

this is the middle one

[maiden wadi]

Not sure I follow. You have a delay that is started when you teleport, and you can teleport again when it's done?

[marsh citrus]

yes exactly

[maiden wadi]

Oh. right, earlier picture.

Instead. Ditch the delay and just set a float of.. Sec, never remember that thing's name.

[marsh citrus]

set timer by something ?

[maiden wadi]

No. You just set the float when you teleport.

GetGameTimeInSeconds.

This sets your float to the current game time. When you try to teleport, you get this float you set and check if GetGameTimeInSeconds is >= YourFloat+15.0

[faint pasture]

Yes and from that I would also generate float TimeToEnableTeldport = Time initiated + 15

[maiden wadi]

You trade that for your current bool.

[faint pasture]

Then you have all the info you need to drive a progress bar, and then you just check if current time greater than time to enable teleport when you try to teleport

[maiden wadi]

Then in your Progressbar, you can do (GetGameTimeInSeconds - YourFloat) = TimeCooledDown. TimeCooledDown / 15 = your progressbar.

No timers, no delays. 😄

[marsh citrus]

Wow seem too complicated for me

i don't know what to do

[marsh citrus]

where do i plug this first ?

[faint pasture]

It's literally like 5 seconds of blueprint.

BarAlpha = (CurrentTime-StartTime)/(Delay)

And when trying to teleport

bCanTeleport = CurrentTime > (StartTime+Delay)

You can set both on tick and just check the bool when trying to teleport.

[marsh citrus]

I don't understand any of that sorry...

[maiden wadi]

Semi sure that's right.

[marsh citrus]

haha thanks

i was trying this

lol...

i'm not sure about last time teleported do

[maiden wadi]

It's a float. You make it yourself.

[marsh citrus]

Hmmm this is not working

i can teleport every second

[maiden wadi]

Show me what you have?

[marsh citrus]

Actually it might be because my teleport is a little complicated

https://blueprintue.com/blueprint/ta2fgab-/

See i need to activate it firstly to send an indicator then again to teleport myself THEN i want to wait 15sec

[faint pasture]

Okay I would have two booleans

One for if you have a Target location, and one for if you can teleport to it

On button press, check if you have a teleport location, if you don't, run the line tracer whatever and set the teleport location, and also set the Boolean to true.

Also set the start time at that point. So to reiterate, if you do not currently have a Target location, you pick a Target location, set the boolean, and set the start time.

On button press, if you do have a Target location, check if current time is greater than start time plus delay, if true, do the teleport, then set the Boolean to false

That would be the simplest way to accomplish the mechanic you want. If you want to have the timer fill up a bar or whatever, you'll have to do some of that stuff on tick regarding current time and dividing by the delay, but that's all just decoration

[marsh citrus]

But i ALWAYS have a teleporte location

and a target

it's working no matter what

[faint pasture]

Well then you aren't checking if current time is greater than start time plus delay

[marsh citrus]

i mean i have really basic knowledge of bp and i took me days to accomplish this so all of this seem overly complicated for me...

Maybe i should drop the progress bar and just put ON / OFF when it can teleport

like a widget

[faint pasture]

If bHasTarget = true
    If Time > StartTime + delay
        Teleport
        Set bHasTarget=false

If bHasTarget = false
    Set bHasTarget=true
    Set Start time = now

[marsh citrus]

and display 15sec left

[faint pasture]

Don't do that, get the thing working before trying to decorate it with UI and other stuff like that.

[marsh citrus]

this is code ?

[faint pasture]

Not really, just pseudo code, the simplest way I can think of to explain it

Do you follow what I'm trying to get you to do at all?

[marsh citrus]

I don't know how to use what you sent me

i'm trying to set this bool first

[faint pasture]

All right I'll just talk you through node by node. Start at the button input, add a branch, the boolean into that Branch should be hasatarget

[marsh citrus]

Aaah this what "b" is for

ok

[faint pasture]

Show me what you have each step

[faint pasture]

Okay then on the true path, put another branch, this Boolean should be the result of get time in seconds > delay

[marsh citrus]

like this?

[faint pasture]

Where are you using GAS or just kind of making your own ability framework?

[marsh citrus]

GAS ?

[faint pasture]

Gameplay ability system, it's What epic uses for fortnite, very powerful but incredibly complicated. I'll take that as a no

Okay so on the true output of that last branch, that's when you actually do your teleport

Make sure you set bHasTarget to false before you do the actual teleport

[marsh citrus]

Haha

[faint pasture]

So once you've done that show me what you have between the beginability and the actual teleport mechanic so far

[faint pasture]

Sorry that should be
Current time > start time + delay

[marsh citrus]

what should be start time ?

right now i have this then

[faint pasture]

Just a float variable, you'll set when you set the target

[faint pasture]

Yes exactly. Now on the false path of that first branch, set your target location, so has a Target too true, and set start time to current time

I don't know if selecting a Target can fail, that's up to you. If it can fail, then you'll want to only set Target location, has a target, and the start time if an actual Target location was selected

And then that should be it. The Boolean has a Target controls whether pressing the button tries to set a Target or tries to teleport to a target. The start time and delay variables are used to check if enough time has elapsed since you last set of Target to allow you to teleport to the Target

[marsh citrus]

Not sure of what i'm doing here

it allready does my targeting here

[faint pasture]

That's just a damn mess. Am I correct in assuming that you want the first press of the button to set a target, and then the second press to teleport to that Target if at least 15 seconds has elapsed?

[valid bolt]

Can someone help me im trying to make the camera move to a specific location when ADS, but the move component to node isnt working correctly specifically the return part

[marsh citrus]

Not at all, the first press set a target, the second press teleport to that target THEN i want to wait 15sec so player can do it again, it's allready working with the delay thing i built before, i just wanted to display the duration of the delay inside a progress bar

the tleport function is working allready i'm not trying to fix it, it's only about time display on widget i'm here

[faint pasture]

Oh okay so like the 15 seconds is like a cool down between teleporting and being able to set the next Target?

[marsh citrus]

No it's just a skill reload delay

i mean

YES

sorry

lol

this does the trick

[faint pasture]

That looks pretty f******.

[marsh citrus]

i could juste take the bool and display on HUD if player can teleport

[faint pasture]

Can they set the next Target before the 15 seconds is up or does pressing the button just do nothing?

[marsh citrus]

This is not wanted

player shouldn't be able to set a target before cooldown is finished

[faint pasture]

So if they're sitting there just pressing the button as fast as they can, it's setting Target after Target after Target after target, but then as soon as the 15 seconds is up, the next press of the button teleports them to their last Target location?

[marsh citrus]

it's setting nothing

once the delay is ON nothing happen if they press button

because it's prohibited here

[faint pasture]

You just said they should be able to set the target. Which is it, if you press the button before the 15 seconds is up, does it set a target, or does it do nothing? This is a gigantic clusterfuk LOL

[marsh citrus]

No i said they shouldn't

[marsh citrus]

it does nothing has it is intended to

[faint pasture]

Okay so just check cool down first, and then check if they have a Target.

If they have a target, teleport to it and set the time variable. If they don't have a target, set a Target

It's that simple.

I would make a base ability class that includes all the cooldown management stuff though, not reimplement it every time you try to make an ability.

[marsh citrus]

So i after teleport i SET start time and i should plug game time in seconds in it ?

[marsh citrus]

this is the first ability i'm planning to make it better :p

[faint pasture]

Yes, that's how you record the last time you teleported so you can check the next time they press the button if 15 seconds has elapsed

[marsh citrus]

am i going in the right direction here ?

[faint pasture]

Don't do anything with timers right now. You should only have one event implemented

[marsh citrus]

hmmm

it's more likely where i am now

[faint pasture]

Yes exactly, do that right after you perform the teleport. I wouldn't call it start time anymore, I would call it something like last time executed or something

You can do it right before the teleport to, shouldn't matter as long as there's no way that an actual teleport action can fail once it's been triggered

[marsh citrus]

Okay so

now i should move to event tick right ?

[faint pasture]

Show me what you have right now.

[marsh citrus]

just what i showed you

unplugged this

[faint pasture]

Why are you still using that timer, just show me what you have from start ability

[marsh citrus]

I'm back here, except that last part you see

ok sorry i think i'll let it go

i'll forget about the progress bar

[faint pasture]

I'm on a phone, just show me a screen grab of the start ability event and the two branches

[marsh citrus]

i'm fine it's taking too long to nowhere i have to stop for today

thanks anyway

[tardy plinth]

Hey. I'm trying to learn UE while also working towards an actual cRPG like game. Can anyone offer guidance on the basics of how you would approach this? Would character blueprints be best to use for all the characters as well as the player character in the game? How do I approach a fixed (almost isometric) camera?

Not actually making a game, but I seem to work well when I have goals

[faint pasture]

The first major decision you need to make is whether or not it is real time or turn based. I'd say that's the number one thing that will inform your design.

[tardy plinth]

Essentially I'm aiming to replicate something like Divinity Original Sin, which goes in and out. I'm really just using this as an excuse to learn how to do various things in unreal

I guess for now what I'm aiming to achieve is multiple characters, that I can select, and move

With navigation, and then I can go from there

Doesn't have to be turn based, might be easier to leave that out for now

[faint pasture]

Not multiplayer, I'm assuming?

[brazen pike]

How experienced are you with unreal, first of all...

[tardy plinth]

Not at all really but I have a couple of games published on Steam using Unity

[faint pasture]

I would first read any guides on Unreal Engine for unity developers, there's a lot of parallels but also a lot of architectural differences.

[tardy plinth]

Yes that's mostly what I'm trying to get into my head.. the differences in architecture

[faint pasture]

Start with the top down template and just try to be able to swap characters around. That's where I would start.

[tardy plinth]

I've seen some courses around designed for people transitioning, maybe I should buy one and just knuckle down

[faint pasture]

The possession mechanic should make it fairly simple

[tardy plinth]

Okay

[brazen pike]

uhhh I wouldn't buy one. You can get pretty far without paid tutorials, especially since you seem to already know a lot of game design theory... but that's just my opinion, others will disagree

[faint pasture]

But to answer one of your earlier questions, yes, a design like this is going to have one base character class which is used for everything. That way AI controllers or player controllers can just hop in and drive them around and control them

I wouldn't pay for any tutorials, just dive in. Don't even watch tutorial videos unless you have a very specific question. 100% though, read the documentation on the framework and the unity to Unreal cheat sheets

[tardy plinth]

I wasn't aware of all that content for Unity people, thats good

[faint pasture]

Learn the engine with blueprint, but don't be afraid to bust open C++ for what needs it. For this design, you could probably do it all with blueprint, but there are certain things that you'll want C++ for. I would not try to dive in The deep and learning the engine in the C++ context when you don't even know what a pawn or actor or controller is yet

[tardy plinth]

Yeah I figured blueprints would give me a sort of, overview of the api

Which would make learning the code later much easier

[brazen pike]

yeah, you can go very far without touching c++ but you will get to a limit. I'm at that limit right now and it's biting me in the ass, I never learnt c++ so AI is getting extremely hard

[tardy plinth]

So I'm just sticking mostly with blueprints until there's something I feel it's really not good for

I've played with small bits of C++ in UE in the past though

[faint pasture]

Basically they both do the same thing, it's just like blueprints a wrapper on the C++

[tardy plinth]

In regards to blueprints vs C++ when you start your project... it just means you edit the blueprint in code vs the blueprint editor right?

I'm not restricting myself to one or the other at that point?

[mild kestrel]

Hi, I have a problem, not a big one, but annoying one.

I want to add a fade out widget when opening a level (a widget that fades out of black)

Everything works well, but not when you're a client connecting to Server

In this case, before You succesfully log in, the fade out screen doesn't appear right away, it does after log in event that happens after a split second

So i'm left with a ugly transition

Is there a way to add a widget before player controller is initialised on Server's GameMode?

[faint pasture]

You'd be surprised at how far you can go with it. So far all I've encountered the absolutely requires C++ is highly intensive math, gas, and fancy character movement for networking

[tardy plinth]

Yeah as someone who codes a lot I'm finding it not as disgusting as I would have thought 🙂

Other than obsessively arranging nodes sometimes 🙂

[faint pasture]

I'm pretty good at programming overall but I started mostly in blueprint, I would use it for everything if it was exactly as fast and capable as c++. Even though I'm pretty comfortable working on the C++ side.

[rain egret]

i have a minigame in my project in which you can crack open the ore you collected. i am using procedual mesh and the slice function.

however it just so happens that some parts do not create a cap

[tardy plinth]

So in theory I can just learn about possession, duplicate the character in the top down template, and figure out how to switch possession right?

[brazen pike]

wait a damn minute... are you telling me that AI navigation isn't restricted by blueprints? So I can do a path corridor that's generated outside of a nav invoker with blueprints?!?! Cause I've only ever seen documentation on stuff that achieves this with C++

[tardy plinth]

So I should probably start with the concept of possession, character blueprints and player controller and I should be pretty close?

[faint pasture]

Yeah I would do that.

[tardy plinth]

alright, thanks for your help

[marsh citrus]

@faint pasture

Hey just wanated to let you know that i did it myself by doing simply this, and it's working perfectly... thanks for the help today anyway !

Looks a little bit weird but it's working as i wnated to and i'm understanding what i do, that's the important thing x)

[whole dune]

can someone help me? I drawed 2 lines to calculate the angle and it works. but i dont know how to put them in my function (function: normalize- dot- acosd degrees)

adding, subtracting, multiplying didnt work

the lines are drawn correctly so im just stuck at putting it into my function 😅

[icy matrix]

What's the use of FNames against, say, FString or FText? I know FText is localizable but what's the advantage of using an FName?

[earnest tangle]

Fast comparison of values

They're basically treated as numeric comparisons instead of string comparisons

[tardy plinth]

Trying to set the default pawn. I've created a game mode, set it as default, and changed the default pawn to one of my own, but I'm still getting a pawn which isn't the one I specified. I have no overrides so I'm a bit confused...

Uh.. that's really odd. I restarted and changed nothing, and now it's using my pawn..

[mild kestrel]

to show what i meant, at 0:16 we can the split second that the fade in screen isn't appearing for the client

Is there a way to avoid this in blueprints?

[obtuse herald]

Where exactly is your problem?

[maiden wadi]

@icy matrix
FName is more or less a named integer, similar to an Enum, but a larger datatype and bigger. Like Zomg said, they're used for lookupdata mostly. You'll see them a ton in Datatables.

FString is exactly that it's an array of characters. These are often what you'll use to manipulate text easiest. These are the most traditional text based variables.

FText is basically a string but with some extra data attached. This data allows the FText variable to look up other strings. This text type is used in user facing display because this extra data attached to it allows you to localize the text to other languages. Best practical use of this is with StringTables.

[spring flax]

I'm trying to change my GameState variable from an Editor utility, but the cast seems to fail. Is anyone aware of what could be the issue here?

[tardy plinth]

how do you get the text you'd see in the outliner?

just wanting to print out a name

nevermind, its GetDisplayName

[maiden wadi]

@spring flaxWhy not just change it in the class?

[spring flax]

I have an editor utility which changes multiple things at once. Keeps things neat with a button. Changing it in the class would work, but it defeats the point of what I'd want to do with the utility.

[maiden wadi]

Ah. Not sure. I always just edit class defaults manually.

[whole dune]

i dont know how to find the angle between both lines

i can draw them but not calculate the angle

[spring flax]

cheers anyway :). If anyone else has any ideas let me know

[obtuse herald]

normalize your 2 vectors, find the dot product, and then use the Acos node to get your angle

should look like this

[earnest hollow]

Is it possible to make mechanic in a single blueprint where when you overlap two instances of it in the scene one of them get's destroyed and the other spawns a different mesh?

It seems possible if there was some sort of "tags" or some thing like that but i feel like im trying to solve chicken and egg problem

[maiden wadi]

Just need a validity check.

There is no chicken or the egg, overlaps happen in an order. One object will overlap the other first. If you destroy the other and change the one the event fired on, and check if it's valid before doing any of this, it should be fine.

[earnest hollow]

Thank you, will go try it out

Sort of works, now i have a control over which one is left after collision, but the error still stands

[faint pasture]

Check is pending kill before going into the timeline

Although the error might be that the timeline is running for a little bit, you'll only want to start the timeline once you can confirm that the actor isn't going to be immediately destroyed.

Is this for a building mechanic? Why not first check if the thing can fit before spawning it

[earnest hollow]

More of merging mechanics, two actors are on the plane, nothing in the way. In some configurations i was sort of able to get the desired result, but it was very unstable. Looking for a proper way. With the time, it seems as though both instances get "kill" tag therefore the error. But that's just a guess. Validation adds stability for sure, but still looking for the right config

[icy matrix]

Make sure the level you're using the Editor Utility in is actually using the game state. I've run into this problem as well where the level wasn't using the game mode I wanted.

[faint pasture]

If it's meant to be some sort of a game mechanic, with all the animations and stuff that go along with it, I would just make a custom event for the merge. Have it shut down all the timelines etc and then kill itself

[tardy plinth]

Is it normal to have a camera per pawn?

Or should the camera be on the player controller?

Hmm.. I haven't looked at whatever camera manager is yet.. maybe I should

[icy matrix]

The player controller doesn't necessarily have a position useful to the pawn, even though it's a world-spawned actor.

The Camera manager is useful for getting what camera is currently in use as well as its position

That's good for line-trace stuff

[odd ember]

I've found the player camera manager, like some built in UE systems, to be fairly lacking. though I can understand the use of it for the type of games that would rely heavily on multiple cameras

if you're not planning on doing very elaborate camera work, I'd suggest using the default template cameras (where ever they may be positioned)

[tardy plinth]

i just want a single camera that works somewhat independently from pawns

[odd ember]

how independently?

[tardy plinth]

like an rts style camera

[odd ember]

ah

[tardy plinth]

that i can scroll around

[odd ember]

yeah in that case you will likely need to use the player camera manager. or move the player controller around in the world, and attach a camera to it

wasn't there an RTS template built into unreal?

[tardy plinth]

theres one that lets you control a player by clicking

to move to a point

but its just one player and the camera is locked to the player

[whole dune]

Yeah, but i dont know what to put into the 2 inputs of the function thats already doing it for me

[odd ember]

like I said, you can probably get away with adding movement to the player controller and attaching a camera to it

failing that, using or spawning an in world camera that you then manage

[tardy plinth]

i think thats what i need to do.. the world camera

[odd ember]

or

you could cheat a bit

and make a CameraPawn

that can only move with planar constraints, and carries a camera

then possess it with the player controller

[obtuse herald]

Ahh, the direction between your start and end point. But I'm not entirely sure rn.

[tardy plinth]

im still early in learning, but im just learning about possession, ive made some basic pawns i can move around and possess to switch if in range

it works fine, but i have a camera per pawn.. im not sure what is responsible for the camera switching to the one on the spawn during possession

but it is a great way to see that something is indeed being possessed

[icy matrix]

move the camera to the position of the pawn instead

[odd ember]

well I've given you a few suggestions, feel free to try any of them

[icy matrix]

You don't have to possess pawns for this

[tardy plinth]

will do, thanks

no?

[obtuse herald]

exactly my thought

[odd ember]

I imagine you'd want to move the pawn by using mouse or keyboard though

[obtuse herald]

you're probably not controlling directly (via wasd) every pawn, right?

[odd ember]

hence where pawn possession becomes reasonable

[icy matrix]

ai can do that

[tardy plinth]

yes, im aiming towards a turn based rpg

[icy matrix]

each pawn could have an ai controller you give orders to

[tardy plinth]

ah, the possibilities are endless 🙂

im maybe a day into really learning, i will get to AI controllers and such I guess

[obtuse herald]

If he wants to control each pawn like a tps then it's resonalbe to posses the pawns tho

[icy matrix]

If

Otherwise it doesn't make sense.

[obtuse herald]

yeah, If

[odd ember]

oh yeah I'm not sure about that (although that sounds cool). I was more referring to the camera being a pawn itself

[tardy plinth]

basically im thinking like divinity original sin

if you've ever seen that

or xcom

so i could have a world space camera, and my pawns just tell it to look at them when its their turn?

that sort of thing?

[icy matrix]

yeah]

give it the units position and use the camera manager to set camera position to tyhat

camera should be on a springarm

[tardy plinth]

i need to look into camera manager, should clear things up

today was just learning about possession

i only just learned what player controller is today

[mild kestrel]

doesn't anyone know? 😦

[tardy plinth]

is there a way to stop the default camera being spawned?

[whole dune]

do you know what node that would be?

[obtuse herald]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Math/Vector/GetUnitDirection_Vector/

[cinder raven]

Could anyone help me with this? I can't get the anim state notify to trigger damage on the enemy, the sphere trace works because I see it in game

[odd flume]

Hi, i'm making portals in a mod and everything is well implemented except that when there is a wall between the camera and the portal, it appears on the other portal, this can be solved using something apparently called the "near clipping plane".

Most of this is explaned in that video (12:18), but it's in code and unity, so i have no idea how to do it in the BP system of Unreal engine.

i found a value called "near clipping plane" on the camera i'm working with, but it only take a float, and i would need some kind of matrix or something.

https://youtu.be/cWpFZbjtSQg?t=738

Any help is appreciated (don't hesitate to ping me)

[whole dune]

tsym, imma try that

[obtuse herald]

If you using Scene Capture Components (what you probably do) then ClipPlaneBase and ClipPlaneNormal is probably that what you are looking for

[odd flume]

are those function ?

what is the difference between the "base" and the "normal" ?

[obtuse herald]

those a vector variables on the scene capture component

[odd flume]

hmmmmm

[obtuse herald]

Base is the position and normal the direction

[odd flume]

so i guess i need to give the same vector as the portal itself

so the clip plane is just overlapping with it

[obtuse herald]

probably base = portal location and normal = forward vector of portal

depends on your inplemantation

[odd flume]

i guess the normal of the plane is the vector perpendicular to that plane

well thanks for your ideas

i'm gonna try to test them

[obtuse herald]

yepp

[odd flume]

oakyyyy

and for the base portal i should probably take the world vector thing

[obtuse herald]

just actor location of the portal

[obtuse herald]

also you want to check EnableClipPlane

[odd flume]

that's just the checkbox no ?

[obtuse herald]

yeah

[odd flume]

cool

well it need to be permanently on

[obtuse herald]

just check/tick/enable it in the details panel

[odd flume]

yes

Thanks

[devout dove]

How can I add "displays" into the cockpit? There are premade displays but how do I actually add something to it? Like show speed etc? I also would like to add a crosshair panel, can I put a widget in a pawn or how do I do that, i'm confused.

[obtuse herald]

WidgetComponent

https://docs.unrealengine.com/4.26/en-US/Basics/Components/Widget/

[odd flume]

@obtuse herald just in case, do you think this will work ?
or do i need to invert the rotation ?

[obtuse herald]

If you're using the build-in plane mesh then you probably want 'Get Up Vector' instead of 'GetRotXVector'

[odd flume]

that exist ?

[obtuse herald]

yeah. GetForward => +X, GetRight => +Y, GetUp => +Z

[odd flume]

leeeeel

[obtuse herald]

I don't event think there is a difference between forward vector and GetRotXVector

[devout dove]

Is it possible to change materials? I have a spaceship cockpit with a display material and I wonder if I can change the material to show current speed on the display mesh ingame

[obtuse herald]

try this node

[odd flume]

yeah my bad

i already built my mod using the rotator thing

so the rotator one doesn't work........

[obtuse herald]

The widget component renders the widget onto a render target, which is basically just a texture so yeah

you just need to create a dynamic material instance in runtime

[obtuse herald]

maybe it's the wrong axis after all

[odd flume]

yeah

[obtuse herald]

just check the arrows of your mesh

[odd flume]

i'm trying with the up vector thing

[odd flume]

the thing is....

[obtuse herald]

red is X, green is Y, blue is Z

[odd flume]

my viewport is kinda fucked

and it doesn't show anything

[obtuse herald]

that

is

a problem

[odd flume]

yes

[obtuse herald]

did you already restart your editor?

[odd flume]

yes

even my pc

as this problem is here for two days now

i'm trying the hard way

compilying

testing

and tweaking

[obtuse herald]

ouch

[obtuse herald]

BP should kinda look like this

and Material like this

[odd flume]

boi

@obtuse herald you are allowed to punch me

i fucking forgot to turn the clip on

[obtuse herald]

hahahahahahaha

classic

[odd flume]

now i wanna really test if it work with rotator

i'm lucky the mod take only 30 seconds to be packed

[obtuse herald]

did you try unlit viewmode already?

[odd flume]

beside changing the color it doesn't do a lot

do i have a way to "reset" the viewport ?

well that's not the right direction, so i'm just gonna try with the Up vector thing, i really hope that it does work

even with the up vector it doesn't work

yeah i really need the viewport for that

....

[obtuse herald]

oh yeah don't do that

[odd flume]

actually it still doesn't work

you think i need to restart UE ?

[obtuse herald]

standard is 10

[obtuse herald]

always worth a try

[odd flume]

yeah because i'm changing the value and it's still not working

also i had 700000 as values

soooo

at least that works

AMENO

[obtuse herald]

so now we have that out of the way

[odd flume]

the plate is in the right direction.......

hmmmm

[obtuse herald]

is this your portal plane?

[odd flume]

it's hidden but yes

[obtuse herald]

oh wait actually I'm dumb

[odd flume]

isn't Up the green arrow ?

[obtuse herald]

the scene capture component draws the render target, not the plane

[odd flume]

eu....

idk

[obtuse herald]

but wait no, the result should be the same

it's just the direction

lost

[odd flume]

confused

[obtuse herald]

thats because you rotated it

[odd flume]

okay

[obtuse herald]

it's showing you the relative axis

[odd flume]

just in case

wait....

euuuuuuuuuuuu

this won't cause any issue right ?

[obtuse herald]

no

[odd flume]

okay

[obtuse herald]

just try all three directions

one of them will work

get forward/right/up vector

[odd flume]

https://cdn.discordapp.com/attachments/221798862938046464/903364867082301440/unknown.png

it seem that "up" placed it on the ground

or something

the rotator placed it verticaly

https://cdn.discordapp.com/attachments/221798862938046464/903364399597752330/unknown.png

but 90° off

i'm testing with forward

[queen yew]

how do i show the mouse when play the game? when i click the viewport my mouse dispapears

and there is no show mouse option in the details panel of the player controller

[odd flume]

so forward do the same as the rotator.......

[obtuse herald]

there is actually

[queen yew]

as you can see in the picture that option isn't there

[obtuse herald]

tbh I don't know what these pictures are supposed to show me xd

[odd flume]

well you see on the ground

there is a lit space and a black one

the separation between the two is the cliping plane

[obtuse herald]

because you're looking inside a pawn for it

[odd flume]

so here it's vertical but need to be retotated

[keen wedge]

Hi all, I've spawning enemies within a box volume and using a trace (sphere currently) to determine a hit, this enables me to get the location of where the enemy can spawn.

I'm using the first-person shooter template for the time being and a quick mesh I cobbled together in Maya.

One problem I am having is that sometimes, the enemy can be spawn on the bottom of another object. For example, the white cubes in the template level, and I'm not sure why. This will be a significant problem for the game, as the player will not be able to destroy them.

Can anyone shed any light on why, perhaps, that might happen? is there a setting that determines the sensitivity of the trace, or collision detection that I should be considering?

The only thought I'd have at the moment, which may prevent it, would be to shorten the length of the trace, but the problem with that is that then the enemies wouldn't spawn on the floor either, only on the objects in the level.

The second issue is that sometimes they spawn inside one of the cubes. This one is even worse, as with the other issue I might be able to not spawn something based on its rotation, but spawning inside the cube they are often up the correct way. Again, not sure why this could be happening.

Any thoughts/suggestions/help is appreciated 🙂

the underside of a cube

[obtuse herald]

try drawing a debug arrow

[odd flume]

i actually don't know if i can use debug on that game

[obtuse herald]

Oh

[odd flume]

i should

[obtuse herald]

Just check if the Y axis of your Hits Normal is positive

[keen wedge]

Hi, yeah, I think that will work for the upside down ones (at least in this case) - but what about the ones spawning inside the cubes?

[obtuse herald]

How do you spawn them?

[keen wedge]

What I'm not sure is whether the hit ignored the top of the cube, went inside and hit the bottom, then spawned the enemy up the right way... or... whether it some how hit the bottom of the cube(?) and then rotated the enemy which makes it kinda appear on the inside.

I can paste up the blueprint, bit messy as work in progress..

[obtuse herald]

do that

[keen wedge]

sure, one sec..

(left hand side)

right hand side

this is to get the location.... after this I do this at the moment...

well, not after, the first two screenshots are the GetRandomSpawnLocation function

[odd flume]

yeah as expected the debug arrow doesn't work

[keen wedge]

I was using some of this (https://www.stateofartacademy.com/ue4-custom-scatterer/) but not the 2D grid stuff as I felt it wouldn't look as organic...

[obtuse herald]

Try LineTraceByChannel instead and look where the hit is detected

[obtuse herald]

in PIE?

[keen wedge]

I did actually start with a LineTraceByChannel, but I thought I was getting some odd results, so went for the SphereTraceByChannel as assumed I could make the end of the trace a bit more "chunky" which might avoid the issues... can change it back.

When you say look where the hit is detected, by initially outputting the name of the thing it hit? so, the cube for example, or the floor? Not sure how I will be able to tell if it was the inside/outside of the cube on the bottom surface?

[odd flume]

pie ?

[obtuse herald]

Play in Editor

[odd flume]

can't

it's a custom editor that doesn't support it

[obtuse herald]

No you can debug draw it, the line will turn red after it hit an object

[odd flume]

or if it does

i don't know how it need to be set up

[keen wedge]

I do have that enabled now, but have it set to "During Duration" or something (not sure what that really means), and has a time limit of 0.1... could extend the time, but its going to get a lot of red lines, as it spawns loads before any appear on the bottom.

[obtuse herald]

I see...

[keen wedge]

I used the Hit Actor pin to output the names... one just got spawn inside the cube and it did state the name of the cube... obviously still doesn't tell me if it hit the inside of the cube (ignore the top of the cube) or somehow the bottom of the cube, ignoring both and then rotating the enemy..

[worthy frost]

@keen wedge i would do traces in your case

do your sphere, find a point then line trace down

to find impact point

if the trace down fails then your under the cube

[keen wedge]

Thats what I'm doing... I believe... randomly picks a place in the volume, then traces from that point, finds the impact point, and uses that for the location to spawn... but I dont understand why I'm getting them spawning inside the cube..

I guess the random position in the volume must be inside the cube as well, and then the line trace is firing from there to the inside surface of the bottom of the cube...

still not sure about the ones that end up on the outer surface of the bottom of the cube though..

[worthy frost]

i mean, i personally would use a special invisible actor, and then get random points in the bounding box, placed above where they can spawn

if you have AI, you can do navprojection to ensure the point is valid to reach also

[keen wedge]

your first sentence is I believe what I'm trying to do...

not using AI or navmesh etc

when you say "if the trace down fails then your under the cube", can you elaborate please? Not following..

[worthy frost]

well your sphere overlapping a solid box

to find points on top of it

[keen wedge]

yeah, or on the sides etc..

sorry, you mean I shouldn't use the sphere trace?

[worthy frost]

are they spawning inside?

or on the bottom

[keen wedge]

both - visually...

I have had loads this time spawning inside, but one of the last ones output that it was the floor that was the hit actor... which means the trace went straight through the cube and ignored it entirely? but it doesn't always... which is kinda weird..

I have a video of it in action but not sure I can upload it here?

[spark steppe]

are your face normals pointing inside the cube?

[keen wedge]

I would have no idea... its the default cubes in the first-person template UE4 example project... I would assume for a simple cube, not...

?

[spark steppe]

another thing you could do is get the cube bounds, and randomize 2 axis values within the bounds

[keen wedge]

many of the hits are working... the outside of the cube is getting many enemies on it...

[odd flume]

well it doesn't work, i'll see that later thanks @obtuse herald

[obtuse herald]

Wait, I'm trying it myself rn

[keen wedge]

one noticeable different switching back to a LineTrace from the SphereTrace is that the enemies no longer rotate when they hit the vertical sides of the cubes...

[obtuse herald]

just need to enalbe gloabl clip plane

[odd flume]

oh

[barren relic]

does anybody know how to make a shotgun? but contra style

[keen wedge]

Ok, I've made the traces stay on for longer and I can see now that some of the random locations that are being chosen with in the volume are also inside the cube, when the line trace fires, I think it ignores the surface on the inside of the cube and then looks for the next surface, which is the floor. This would align with the Hit Actor stating floor. Now I have no idea how to prevent them from spawning inside cube... unless I change it perhaps so that the volume doesn't fill the entire space and is just floating thinly in the air, but it uses its Z position to base the height of the trace line for? Might still run into other problems in the world with this approach though as things may still get in the way.

I did try the dont spawn if collided option on SpawnActor, but this prevent them from all spawning as there was a collision triggered, presumably, when it tried to place the actor ontop of the cube or floor. Sigh...

[faint pasture]

Do you have a regular gun already?

[barren relic]

not a gun, but a ship that shoots

[faint pasture]

Make it shoot more than 1 bullet at a time. There you go, it's a shotgun.

[barren relic]

uh

but they have to go different directions lol

[obtuse herald]

yeah I'm to dumb rn, but maybe this guide will help you https://michaeljcole.github.io/wiki.unrealengine.com/Simple_Portals/

[worthy frost]

@barren relic use Rand Cone

[burnt trench]

Hello guys. Is there still a way to package a project (4.27) for a browser(HTML5)?

[worthy frost]

to create a spread.

[barren relic]

rand cone eh

[worthy frost]

http://thegames.dev/snaps/6E72wPbOYB.png

[barren relic]

ahh

[worthy frost]

adjust your shoot dir, with the output of this

or do what some games do, and have predefined spread patterns.

[barren relic]

Can I do that with just math or do i need arrows for the vectors

[worthy frost]

just an array of unit vectors

[barren relic]

ah okay

[worthy frost]

one entry for each shot

pellet*

[barren relic]

okay so since I have 3 I need to do it 3 times with a specific angle for each one

[worthy frost]

if it fires 3 pellets per cartridge

yes

[odd flume]

@obtuse herald well thanks anyway

[barren relic]

currently this is what it looks like in viewport

would i have to do projectile movement for each one?

or make one projectile that gets spawned 3 times

[worthy frost]

you can only have one projectile movement comp per actor

so you would need to spawn 3 projectile actors

[barren relic]

ah thanks,

[burnt trench]

Is there still a way to package a project (4.27) for a browser(HTML5)? I have been searching for a solution but haven't found one. Does anyone know anything about it?

[worthy frost]

no

it was discontinued in 4.25 i think

[burnt trench]

after 4.23 yes

[high ocean]

what was that bp function called which always returned a positive float?

the one that never returns negatives, if it's negative it will negate it, if not, it won't

can't find it 🤦‍♂️

[burnt trench]

you can just say random float in range and give it range larger than 0

or get random number and then Mod it to always get positive

[high ocean]

nvm, found it, it's Absolute... @burnt trenchThanks, but I have no idea how "random" came into discussion 😛 It's ok 😄

[burnt trench]

mod is the mathematical function. Abs is what its called in engine 😛

[worthy frost]

@burnt trench https://github.com/UnrealEngineHTML5/UnrealEngine/tree/4.24.3-html5-1.39.18/Engine/Platforms/HTML5

you can get the plugin here

just select the correct version obv

[high ocean]

@burnt trenchYes, but i was looking for the mod function in bps 😛 I don't need random numbers 😆

[worthy frost]

tho i thiok 4.24 is the latest, but maybe you can migrate it

[olive ingot]

I'm having trouble converting Text into Integer. Does anyone know a nice way?
When I do it I only get the first character as number

[dire frost]

convert text to string and convert that string to int

[barren relic]

yeahh

Okay so it spawns more than one but they don't spread, what did I do wrong?

[olive ingot]

Oh thanks. I just realized it's because there's a space in between my numbers from my text variable 😅

There was a sneaky space in here.

[tight schooner]

You're converting a "normal vector" (a vector with a length of 1) to a transform as if it were a location vector... I don't think that would affect the rotation.

[barren relic]

Oh, I want them to spawn different locations within the cone

can I do that?

[tight schooner]

Oic. Well, the vector has a length of 1 so they're probably spread out already... Just very, very slightly

Multiply the vector might do it

[barren relic]

multiply it by

[tight schooner]

Vector × float

Or int

Try 50 maybe.

Idk

[barren relic]

iite i'll try it

hmmm nope

[tight schooner]

Yeah dunno. The transform pin on the spawnactor node is probably in world space anyway so I suspect there's some other logic at play determining the real spawn location. It's hard to say from my end

[barren relic]

let me see what i can try

[tight schooner]

Like if you look at the construction script or beginplay etc of BP Projectile Player Triple is there some Set Actor Location thing going on?

Cuz idk how the projectiles spawn at the shotgun location otherwise

[barren relic]

it's a child bp but it's taking this

but there's nothing besides scale in there

[tight schooner]

Yeah, dunno

Sorry

If the projectiles come out of the gun then the mystery is how it's properly spawning there in the first place

[barren relic]

gimme a second, my output wasn't hooked up properly, im gonna see if that was it

infinite loop but i don't know how to break it

[tight schooner]

Don't think that'd be infinite unless you're spawning over 100,000

[barren relic]

the last index is 5 so it should spawn 5 and stop

idk

[tight schooner]

Is this a marketplace asset?

[barren relic]

no

[tight schooner]

Did you modify the For Loop macro?

[barren relic]

uh no

[tight schooner]

Deep mystery

[barren relic]

Maybe I can adjust the player code?

[icy dragon]

How do you even call this function of yours?

[tight schooner]

do the projectiles, on spawn, spawn more projectiles?

[barren relic]

When the special weapon button is pressed, it reads the weapon data table and spawns a projectile based on that

[meager spade]

If a collision box and a static world are both set to overlap each others collision profiles I should be getting the world on a get overlapping actors call from the collision box right? I'm finding other stuff but not the world so collision is turned on

[barren relic]

wait it's definitely trying to spawn projectiles when it spawns

I just don't know how to fix it in the player BP

okay so I set it so that when it overlaps it runs that shotgun code and it indeed spawns more projectiles

Crap that means I have to do the shotgun code in the player bp

[icy dragon]

No.
Also this would go to #animation

[burnt trench]

already found this but it is up until 4.24 and converting it is difficult because they have already added ES 3 I believe

[scenic scroll]

I seem to be completely unable to make my spring arm rotate

i don't know why

it's probably some stupid mistake i did

but i've been trying for a while

just can't

Nevermind, I am stupid, holy crap, why do i always find the problem right when i finally decide to ask for help

i was using the wrong spring arm

[bright frigate]

Hey so this is firing (the print string confirms) but it doesn't actually stop the blueprint from playing the sounds. The Stop Crows event is just a clear timer by function. Any ideas?

[scenic scroll]

is something wrong with my respawn code?

instead of respawning the player into the spawned pawn it places the player in a static camera in the center of the world and that's it

nvm i got it, its cause it was colliding into the ground

[final rampart]

@zealous orbit

The graph

[zealous orbit]

Oh I see the VInterp

[final rampart]

Yeah, this would never fly in a final product because I know that VInterp is frame-sensitive

For a draft it's ok

[zealous orbit]

Yeah will probably need some combination of the input vector, a dot product, and the character's actual facing direction

Probably (<Input> dot <facing>) mul <input>

After projecting facing to the 2d plane ofc

[final rampart]

I think I have a personal problem lol.

I don't even understand what a dot product is.

Oh nifty, the documentation links to a definition of a dot product.

[bright frigate]

Ok I figured out it's because in the sound cue, the looping node was keeping the sounds going. Once I disconnected them/bypassed them, it's working as expected.

[sonic oak]

Any ideas why this won't work? I'm trying to create a new material, set the texture, and apply the material to a mesh. It's applying the material to the mesh, but the texture isn't working.

Edit: Fixed. I wasn't using the correct parameter name.

[tawdry surge]

@maiden wadi I tried making a new camera, I tried using the camera manager, idk what else to try.
I just can't rotate the player's view manually in BP.
Really wasn't trying to dig into c++ for this

[trim matrix]

Hers the code i followed from the I think train controller i can't get my cart to move

what am I doing wrong if so if anyone could point me in t he right direction (no pun intended lol)

[cerulean raft]

Beginplay only runs the code once at the start (i.e. code will only run for a few mili sec

[maiden wadi]

@tawdry surge If you're trying to mimic the setviewtargetwithblend, but with your own rotation math, then all you should have to do is create a new actor class with only a camera component. When you want to set view, spawn this, set view target to it immediately and also pass in it's target. Then you can do whatever you want in that actor, camera will be on it. After you're done, presumably you've somehow interpolated this actor into the place of the camera you're going to be looking at on the target. So just call setviewtarget on the target, and destroy the camera actor

[viscid barn]

is it possible to spawn an actor and have its spawner transfer a value to it without any delay?
Tried a basic "spawn actor" followed by a "set variable" but there's always a delay of a few ms that makes the whole thing pointless as the value ends up being applied too late

[sharp rapids]

Which value are you trying to set?

If it's a custom variable, you can set it to 'Expose on Spawn'

and it will be available to set on the 'Spawn Actor' Node, I think

[viscid barn]

So basically, I created an animation montage and have it spawn a hitbox with a notify, on said notify I set it so I can directly enter the hitbox's stats (namely the damage multiplier)
So the notify spawns the hitbox, then sets the given value for the multiplier to a float in the hitbox's blueprint.
Problem is that the delay makes it so it returns 0.0 instead of what I typed if I'm too close (as the hitbox spawns on the other character and doesn't have time to compute the "set damage multiplier"

I'll try with expose on spawn as you suggested

Unfortunately, expose on spawn did not help

[safe geyser]

Hey, I'm very new to unreal, I'm trying to rotate a spring arm camera around the player. If I change the absolute Z on it, it rotates how I want it to. Trying to do that in a BP on keypress however results in the camera laying on the ground, but rotating as desired.

[viscid barn]

Can you show the keypress portion?

[safe geyser]

Before press:

After press lol

[viscid barn]

It's cause you're giving him 0 on the pitch

[safe geyser]

ffs i got it

you rule

[viscid barn]

🤣

[viscid barn]

Happened to me quite a lot

[safe geyser]

oh man that looks so cool thank you !! now to smooth it out lol

[viscid barn]

Additionally, if you want to save space you could do away with the make rotator and instead just break the Set's rotator, makes one less node on your graph

[sharp rapids]

can you show the spawn bp?

[viscid barn]

sure thing

[safe geyser]

Ah nice i like it.

[viscid barn]

Always a pleasure to help.
I tend to overdo on my graphs with redundant nodes only to end up wasting hours cleaning up later XD

[sharp rapids]

You're trying to set Hitbox Stats, right?

[viscid barn]

Aye, the struct

I tried making it the 0 Then on the sequencer, changed nothing XD

Same when it's the only Then

(as in skip sequencer)

[sharp rapids]

You're not using the 'Expose on Spawn' variable

On the SpawnActor node

There's a hitbox stats variable just under owner

Pass you're value there

[viscid barn]

OH god flip floping damnit

I only noticed it now lmao

[sharp rapids]

You don't need separate set node

That is what the 'Expose on Spawn' option does

It shows the variable on the 'Spawn Actor' node

[viscid barn]

Aye, I figured as much but somehow missed the darned node lol

Thank you so much 😅

[sharp rapids]

Welcome 😄

[viscid barn]

It's crazy how sometimes it only requires one tiny overlook to make you waste hours 🤣

[sharp rapids]

Yeah, I've had that happen to me quite a few times 😅

[viscid barn]

😂

Seems I spoke too soon @.@

[sharp rapids]

Still doesn't work?

[viscid barn]

nope, still returns 0.0 first then the actual value

Oh wait, there's progress

It updates it sooner enough for hits not to be ignored when both characters are stuck to each other

[sharp rapids]

Well, You can just spawn the hitbox at start and leave it there instead of Spawning it at the instant of Hitting?

[viscid barn]

I have it spawn and stick around for the duration of the hit (so roughly .1s)

[trim matrix]

so what do I need to change ?

[viscid barn]

ohh wait

[cerulean raft]

if you want it running all the time then event tick

[viscid barn]

I was about to say "the third doesn't hit even though it's active less time than the second" I accidentally set its multiplier to 0.0 while trying to fix stuff lol

[trim matrix]

so use an event tick thanks

[viscid barn]

But yeah I think that's what I'll end up doing, having it spawn earlier so that even if hits 0 the first time, it can still hit again with the proper value

[sharp rapids]

I assumed you were doing for a Combat Anim such as Punching or Kicking

[viscid barn]

You assumed correctly 😄

[sharp rapids]

I'm also doing this currently

And I just used a raycast, lol

[viscid barn]

Hahaha

[trim matrix]

hmm I tired that but when I active platform I get an error

actor needs to be moveable or something

[viscid barn]

I considered using raycast too, but then when I realized I would still need to tackle real hitbox for aoe types of damage I figured "yeah, let's be proactive and just create a hitbox manager so I only do the work once and then easily set up the rest whenever needed"

The preparation part of said manager is a major chore, I'll give you that. But once the tool is working, it becomes a lot of fun to set the different attacks so effortlessly 🤣
Finding the right size and location for the hitbox becomes a fun little puzzle xD

[sharp rapids]

I'm currently doing this

[viscid barn]

Das a wide arse hitbox alright XD

[sharp rapids]

😅

The hitbox stays there all the time

[viscid barn]

Are you using the arrow for directional check? Or is it just the default inherited one?

[sharp rapids]

At the time of Hitting a punch, I just use 'GetOverlappingActors' on the hitbox

Then filter out the enemies from them and call the 'Take Damage' function on them

[viscid barn]

Pretty straight forward 😄

[sharp rapids]

Inherited

[viscid barn]

I originally thought of going with that method as well. But then the fact all enemies hit reacted at the same time kinda bothered me 🤣

[sharp rapids]

I wanted that to happen

That's why the wide-arse hitbox

[viscid barn]

😂

animation's so quick it's kinda hard to take a screenshot that's not blurland but here's how mines are setup

dark blue is the actual hitbox, yellow is for the AI to detect so they can block in time

[iron umbra]

Hello, I'm trying to save a thumbnail with transparency. Using a render target and scenecapturecomponent. The problem is the SceneCaptureComponent only has inverted alpha as an option for some reason 🤔 if I make a material and 1-x the alpha, the material works, but I can only save a texture to file and not a material.

Is there no way to get the SceneCaptureComponent source without inversion?

[sharp rapids]

I haven't implemented AI yet

[viscid barn]

Neither, but at least that part's ready xD

[sharp rapids]

I feel it's gonna get more complicated than I like 😐

[viscid barn]

I'm afraid I haven't touched screenspace capture yet so I'm not sure I'll be of much help. That said, shouldn't it be possible to have it save the texture then set said texture to a premade material?
Unless you mean make a material out of it outside of when the game's running

[iron umbra]

The problem is I am rendering the scenecapture to a PNG on my desktop, and that happens before the material conversion. Then I just get an image with inverted alpha. So once I import that image, the 'data' is gone and I can't then apply it to a material. Also, I want these thumbnails available as general images to use regularly, so I need that to work :/

There's Inverted Opacity and there's alpha forced to 0 as Capture source options.. but no uninverted alpha, where it renders what I actually see 🤔

[viscid barn]

have you tried to negate the alpha's value? See if it does the trick?

[iron umbra]

The SceneCapture itself doesn't have the option, but I did try it on the RenderTarget. No effect unfortunately

[viscid barn]

Aw

Afraid you'll have to wait for someone more savvy in this domain then :/

[iron umbra]

Thanks for the suggestions anyway. More than anything I am just confused. Why would there be the option to include with alpha 0, and with inverted opacity, but not render what you actually see out. I guess there's probably some reason 🤷‍♂️

[viscid barn]

UE4 sometimes works in nebulous ways I guess 😂

[iron umbra]

That or I am missing something very obvious but I've gone through everything and I don't think so..

[viscid barn]

Hope you find a fix 😁

[timber pilot]

Is there an easy way to play a sound on a "hard" impact from a physics object only?

Like, only execute a function on a collision that is above a certain velocity

[iron umbra]

@timber pilot you can use Event Hit which has Normal Impulse. That has the Impact Velocity so you can base sounds on it's Vector Length

[north marten]

Im having a really weird problem, I have a level for my main menu and a widget for on click, to spawn in my player and load a new map, but it spawns both levels together in some weird mix

[north marten]

Like, the main menu level isn't disappearing

[trim matrix]

@iron umbra Still having issue?

I have scene capture that saves to PNG

with transparancy

my setup is just like this

that's already saved with transpancy?

for the display in the game, u just need to make the material with the inverse like u said

[remote obsidian]

Spherical2d to unit cartesian - Is this blueprint node usable to convert lat/lon coordinates to x,y,z coordinates? or will I need to create my own node, I've tried with a few lat/lon coords but the resulting xyz values end up like 0.997 vs 0.996 for objects that should actually be hundreds of meters away from each other

I have to multiply by thousands just to get them to have any noticeable visual distance from each other

[earnest tangle]

"Converts coordinates on the unit sphere into a cartesian unit length vector"

seems to suggest it assumes the length is 0 to 1 so for lat/lon it probably won't produce useful results at least without multiplication

[ivory adder]

How do I get the number of connected input devices?

[atomic salmon]

@ivory adder with the RawInput plugin enabled you can call GetRegisteredDevices

[ivory adder]

I did not know that I will enable it right away, thank you!

[ivory adder]

I enabled the plug-in but its Get registered devices isn’t there

[atomic salmon]

@ivory adderwhich engine version are you using?

[ivory adder]

4.27

Linux

Im gonna try disabling and enabling it again

[atomic salmon]

I think Linux is the problem

[ivory adder]

I hope not

I have unreal on windows but it’s painful

[atomic salmon]

that plugin is whitelisted only on Win32/Win64, sorry

[ivory adder]

Rip

Is there anything else that would do the same thing?

[valid bolt]

pls help im trying to make my third person character ADS but i can t get the move component node to return upon release of the button

[remote obsidian]

https://stackoverflow.com/a/4989147

I think I may have found a usable solution, note that i'm aiming for approximations rather than pinpoint accurate lat lon conversion, the code in this answer can be used to create a blueprint node

Still early testing the outputs but so far seems it might be reasonable

[jolly knoll]

Hi, I'm trying to get buoyancy working on a ue4 default pawn, but for some reason it's not recognizing that I have it setup.. How do I fix it?

This is how the Pawn is setup, nothing massively complicated from what I understand.

[atomic salmon]

what is your case/scenario? maybe there is another way

[ivory adder]

It's fine I got something to work

Not as clean but oh well

Basically you can select how many players there are in the main menu then that number gets sent to my player spawn code

[atomic salmon]

@jolly knollthe root needs to simulate physics

I would suggest you make the static mesh of your ship the root and set the collisions within it in the static mesh editor, unless you have good reasons to keep them separate

[jolly knoll]

Okay, I have done that before and it works fine, my issue when I do, is that no matter what I try I can't get the ship to move or turn at all.

[atomic salmon]

@jolly knollyou ship is a physics simulating actor, so the way to move it / turn it is to use Add Force and Add Torque

[jolly knoll]

Ah okay, is there a tutorial you know of for that, I'm very new to blueprints and I've stupidly chosen this as my assignment lol

[atomic salmon]

@jolly knollyou can try to search YouTube. Is not that difficult. Maybe let's move to #legacy-physics, I can explain there

[sudden iron]

evening gentlemen, i want to ask about this, how can i get the blue calculate direction? i just hae the green one, is there something i need to change?

[sudden iron]

i mean like this

[hybrid ether]

How should I approach mineral spawner? I have open world map and 6 different blueprints (rocks, bushes, trees).

[earnest hollow]

Why when i add box collision through blueprint it does not generate ovelap events?

[thin rapids]

uncheck context sensitive

[sudden iron]

how do i do that?

[sudden iron]

still cant

[maiden wadi]

@sudden ironWhat is wrong with the green one?

[fiery glen]

I assume he is trying to follow a video

[sudden iron]

ahhh nvm, the blue one is no longer available

now we only have the green one

but accodring to the how to fix this case video, its supposed to be like this

but idk, still weird

the running animation still like wrong

[maiden wadi]

There's no difference between the blue and green node except that the green one runs every time something pulls from it. Blue executes every time the white line into it runs.

[sudden iron]

uhhh, its hard to explain it in word, would u like to see the live video of the animaion?

[maiden wadi]

To be fair. I don't personally use that. I've always relied on transforming the velocity direction into local space and getting the yaw after turning that local space vector into a rotator.

[sudden iron]

It's like looping

This is the animation looks like after I make that bp, idk man, looks strange

[sudden iron]

Hmmm I don't really understand it

[jaunty solstice]

Trying to debug the logic in a Blueprint. Does anyone know of a way to 'slow down' a For Loop' for debugging purposes?

[earnest tangle]

use a breakpoint

[earnest hollow]

Is there a way to destroy actor on overlap with a single blueprint so that only one is left in the scene?

[sudden iron]

sorry to interupt, do u answering my question or u explaining u try to debug the logic in bp and dont know a way to slow down a for loop?

XD

[white pond]

I think your problem is that its a root motion animation and your not trying to use it as root motion, try tick the in place button on mixamo

[fiery glen]

That animation issue looks like the root motion of the animation asset is set wrong

I assume you want an animation asset without root motion

[languid lion]

Hi everyone. I'm having a bit of difficulty with something. I have a spline path that my camera moves along, but currently, if I want it to move between spline point 3 and spline point 2 for example, it will go through 4, 5, 0 and then 1 to get there instead of going backwards

Could anyone guide me on how I could make it take the shortest path between spline points?

[earnest tangle]

check if target point is smaller than current and move it backwards instead in that case?

[languid lion]

I'm using distance along spline to make it follow the spline route

[earnest tangle]

you can probably compare the distance to the point then

if the target's distance along spline is smaller than current, then you want it to go backwards probably

[sudden iron]

i already try to search for "in place" in mixamo but theres no button for "in place"

[earnest tangle]

Some of them have it, others don't

[white pond]

You see on the right it has in place checkbox, on the animation

As zomg says aswell, not all of them have it, but simple stuff like run should

[sudden iron]

hell yeah, i see it now, probably just dowload seperate animation next time

thanks man

[white pond]

no probs 👍

[sudden iron]

damn its work

u all save my homework

big thanks man

[gusty shuttle]

When using level streaming volumes, if the level is already loaded and you walk into another level streaming volume with the same call to load the loaded level, will it double load, or does it know the level is loaded?

I don't think it can double load a level, but just asking in case

[spark steppe]

it cant double load

so it wont

[gusty shuttle]

Rock on, thanks man

I was just double checking. I'm setting up a pile of level streaming volumes and want to make sure there won't be any weirdness

[sand shore]

you actually have to go well out of your way to double load a level, you can't even do it in vanilla BP

[gusty shuttle]

@sand shore Aye, I think with making level instances eh

[sand shore]

hm?

[gusty shuttle]

I guess not? haha Well either way, it's good to know I can't botch it out of the vanilla gate

Side note, are you guys using UE5 these days are sticking to UE4 for a bit?

[sand shore]

I mean go try it, maybe I'm wrong

attempt to force the case where there is two levels

[gusty shuttle]

Well the one way I will know is in my world outliner or levels tab

One would think they put some simple IsLevelLoaded check in the level streaming volume code

[obtuse herald]

Load Level instance can load the same level infinite times

Level streaming can only load it once

[gusty shuttle]

Aye, that's good news. Thanks for clearing it up!

[vital fractal]

Hi! I want to attach an actual character to the first-person template, because I actually implemented multiplayer. How can I do that?

P.S: I read the docs, I just don't get how you do it.

[maiden wadi]

What do you mean by attach? And First Person template?

[vital fractal]

When you open UE4 you select First Person

and it leads you to this

[maiden wadi]

Is this for shadowing, or? Not sure of the attach intention.

[vital fractal]

Attaching the character? Oh, it's for the players seeing each other

[maiden wadi]

Ah. You'll probably want to include the Third Person Template into your project. You can skip this if you already have a mesh. But just add a SkeletalMeshComponent to the firstperson character class. Then set OwnerNoSee

[vital fractal]

Also I want the "pellets" to be seen by the players

As for now, you can only see your own "pellets"

[vital fractal]

About to try it.

Just to double check; Here right?

[maiden wadi]

Yep. You'll specify the Mannequin or you own character mesh there.

[vital fractal]

How do I specify that I want the body?

Do I drag and drop?

Huh, well it seems not.

[fresh charm]

yoo

ingame we can modify state ? (construction script)

[sonic oak]

For some reason this is only deleting every-other (every odd index) child and i'm not sure why

[earnest tangle]

that's because you're modifying the array you're reading

[sonic oak]

ahhh

Didn't even realize that

[earnest tangle]

you can use a reverse for each to avoid this problem since then the array won't reorder as you're always destroying the last one

(or assign it to another variable before looping)

[sonic oak]

Thanks a bunch!

[queen yew]

so i have a player controller that controls a ball

when i click the viewport the mouse disapears

how do i stop it from disapearing?

there is no show mouse option

[dark crow]

Show Mouse Cursor

[queen yew]

i don't get that option

[dark crow]

You have to from the Controller

[dark crow]

From the Controller Pin

[queen yew]

how do i do that?