blueprint

[odd ember]

a riveting game of bomberman by email

actually at that point it kind of just becomes frozen synapse

[dusk cave]

hey Efool did we set up for the It player to turn into not it after they tagged someone

[odd ember]

it should be handled automatically when you SetActorIt. it goes through every other actor and say they are not it. however, we may not have registered the player character to be part of the initial pool of players

[dusk cave]

oh im not using the player character

just doing AI

trying to use the sight sense on the It person so it will follow an actor if they are in range

[odd ember]

well you probably want to query the game mode for who is it then

and set them as the target to look for

[sonic crow]

haha 🙂 had a good laugh, the tile system is only 2D, also you cant click on an area that is outside the tile syste. here is a reference https://www.youtube.com/watch?v=AFm5dH6CnC4&ab_channel=IGN. That being said you have a point i need to lock bomb instead of character to tile thanks for the input 🙂

[odd ember]

although I don't use the standard perception system

so I can't really help you there

[odd ember]

I see, so this is really just to save 50 bucks on the purchase of super bomberman. devious!

[sonic crow]

hahaha 🙂 its mainly to learn unreal, I am a hardcore Blender user but I thought ue4/5 would be a great skill to learn for future proofing a career. Bomberman is suppose to be a reasonable project to learn the basics, while not to stale to keep me interested

[odd ember]

yeah it sounds correctly scoped

for what it's worth putting down bombs on tiles is probably going to be a lot easier than constrain player movement to tiles

[gusty shuttle]

Fun riddle for you guys
Goal: Not have any mouse click input while in menus
What I did: SetInputModeGame Only, disabled cursor in widget, hid mouse cursor and SetKeyboard focus on the first button in a simple menu.
Controls: Keyboard or controller
Issue: Any time I click the mouse anywhere on the screen I lose keyboard and controller control.
How would you go about fixing this?

Says viewport has focus, so the question is, how do I disable viewport from getting focus. Make focusable false?

Nope, that didn't work

[maiden wadi]

@gusty shuttle Initial thought? Just get the root of your widgets and set it to hittest invisible for self and all children.

That setting is mouse only. If mouse clicks on nothing, it can't set focus on anything.

[odd ember]

collisions events can't be converted to functions?

[maiden wadi]

I assume cause they're not retval macroed.

[gusty shuttle]

Aye, thanks again for rubber ducking. This is what it's set as

[odd ember]

what a shame. would make them cleaner to use 🥲

[maiden wadi]

This doesn't work?

[gusty shuttle]

Nopers man, everything accept buttons are set to non hit-testable

This is the set up

I have no mouse cursor on screen, yet when I hit the LMB I my focus magically attaches to viewport and I can't do anything

[maiden wadi]

You still have a cursor there, it's just hidden.

[gusty shuttle]

Even the player controller says it's hidden. Though obviously you might be right

[maiden wadi]

Hmm. Curious issue. I mean I imaging this isn't as much of an issue on consoles because.. no mouse.. usually.

[gusty shuttle]

Right! haha. That's the goal, I noodled with adding mouse back in, but I wanted to keep it simple. What I didn't know is that it would be more time consuming trying to figure out this focus issue

If I had hair, I'd pull it out at this point haha

https://tenor.com/view/jim-carey-hai-hi-hello-bald-gif-4763908

Me when I'm done fixing this haha

[haughty nymph]

i have that but i dont can see the muzzle

[odd ember]

is your muzzle working? can you show your setup?

[ancient atlas]

hey there is there anyone who knows a thing or two about setting up health bars and widgets. I am trying to put floating health bars above my enemies. I have the players health showing on screen (and working properly) but im not sure how to get the enemies to show above their heads

[cerulean stag]

How do I spawn an actor that rotates around my third person player? I want an invisible pole to essentially spin around my player, damaging any enemies it comes into contact with. Would I add the movement part of this to the actor itself? to the player? how?

[ancient atlas]

i have a widget on the BP which is linked to a widget i have created but it does not show ingame. Thanks

[odd ember]

widget components

[ancient atlas]

how do you mean. Do you want to see my setup?

[odd ember]

there is a component called widget component

it allows widgets to exist in the world

[ancient atlas]

ah right. let me see if i can find it

[maiden wadi]

@gusty shuttleQuite honestly, I can't find anything. The best solution I've found so far is probably something I'd have done myself. This guy does it in his widgets, which might be fine, but it doesn't feel reusable. Me personally I'd probably just write it in HUD and let widgets register and unregister themselves. But the short version is that he has an array of widgets that should be focusable, and then a single pointer to the last focus target. On tick he checks if that target has focus, if not, set it. If it isn't valid, pick another target from the focus array. It's a very simple implementation and with a few functions, it'd be very performant in C++ and easy to set up.

[gusty shuttle]

I normally do go through the HUD to open and close widgets, this is an older project that I'm trying to clean up do to recent popularity (and practice). I may just have to do that

@maiden wadi

[ancient atlas]

would this be the right placemeny @odd ember i call the enemy UI as i want to update the health it shows.

[odd ember]

CreateWidget then SetWidget on WidgetComponent

at least that's the way I do it

because I need to pass in parameters to the widget

[ancient atlas]

heres what i have. im getting errors on the updatehealth node now. its still not showing on enemies.
BTW i am doing this on the enemybase BP rather for each specific enemy. if that helps

[odd ember]

try setting the widget to be in screen space

and see if that works

I had some trouble getting it to show the first time

but basically in world the widget might be tiny

so try for yourself

[ancient atlas]

yeah mine is set to screen space.

will try and make it huge

[odd ember]

make sure tick mode is enabled as well

[ancient atlas]

tick is enabled. still not showing. it is having trouble reading the Update Health node i have even tho i use the same layout of nodes for my player health which works.... hmmmm

[odd ember]

are you passing the player controller to the widget when you're spawning it?

and is the widget's render opacity set to 1.0

[ancient atlas]

here is my error. i had added the player controller to the node which spawns the widget.

this is all the code which is inside the widget

i have exactly the same code to call the Player UI and that gives me no errors. i feel im missing something simple

okay now i have no error but it still isnt showing..

[mild pine]

Hey guys! I want the players hand to move to four different positions based on mouse movement. So far Im able to tell what direction the mouse is moved, but only once when pressed - I wanna check it per frame. Do you guys have any tips on how to add that to this? 🙂 https://gyazo.com/53ebfca495b937f4c4b01449d91ee528

Atm Im doing a check if the player is holding down the input, and if so run an event tick which gets the new location per tick. However, thats not translated to the final output :/

[tight schooner]

@mild pine not sure what you mean by final output. What is feeding this macro/graph? Are you using the Get Axis nodes?

On first inspection it seems like your graph would work, even though attaching a delay to a tick is pretty weird

[mild pine]

Yeah, the code snippet is from a forum, but Im essentially using the input axis of the mouse vertically and horizontally to compare the directions

Lets say I want to decide with this code if my player moved the mouse to the left, right, top or bottom, and as such set a boolean for each (outside of the macro). This boolean is driving an animation montage (attack directions basically). I did find a good solution to updating the values, by adding an Event Tick if the input is held down, but then the issue arises that ALL the booleans can be triggered to true, and now I need to figure out how to filter out the boolean that was LAST set to true

[scenic rivet]

Hello everyone! Is there anybodey from German? I have a question about Steuer

[mild pine]

Only one of the booleans should be true at any given time, so if I move the mouse away from "top" for example, that should update the boolean to false and update the new direction to true

Hmm 🤔

[tight schooner]

You can make an enumerator, which is a byte (sorta integer) that has names for each value. You can make one with 4 values for the 4 possible directions. And then your branching graph can read the axis values and update the enumerator.

You can Switch On (your enumerator) and also use them to drive Select nodes, so they're the solution to the problem of wanting something like a boolean

but with more than 2 states

That would be the more natural way to handle that

But if you're lazy you can also use an integer variable that goes from 0-3 lol

@mild pine

[mild pine]

Hmm thats interesting! Was hoping to use the boolean system I have going as its going through the whole network code, but I'll read up on enums as Im not too familiar with those. I see now that the Select node would be useful indeed

Thanks for the input!

[heavy lion]

Currently trying to understand this

[tight schooner]

Looks like two structs that are being interpolated into one struct

Hate to admit I probably have graphs like this in my atmospherics BPs

[mild pine]

https://gyazo.com/98aeba7507293b9a54ef49c87429e547 Something like this? If Enums are as simple as that I gotta wonder why I havent used them before o_o

[odd ember]

what even is this

[tight schooner]

You're setting down for up but otherwise yeah, enums are nice @mild pine

[mild pine]

Hehe

Thanks for the spot 😛

[faint badge]

If you want to avoid the branches you can actually get the integer value directly via some simple trig using atan2, this also has the advantage of scaling if you ever needed a different number of segments: https://blueprintue.com/blueprint/lb-d2ufr/

[mild pine]

Wow, @tight schooner - that worked like a charm. Thanks so much for opening my eyes to this. Lol, instead of hundreds of booleans checks it's so easy with enums hahaha. Thanks again!

Simply implementing the enum made the tick-check work perfectly on the first debug test 🙂

[mild pine]

Ohh, thanks for the info, if I wanted a 8-diagonal style this would be the approach for that I guess? Would be cool to implement that at some point, but I'm not sure how I'd break up the floats into those 45* angles 🙂

On another note, how can I run checks based on my enumerator inside my anim BP? Cant seem to do a Select node, as it doesnt have the anim exe

[ancient atlas]

im back about my health UI for my enemies 🙂 i have finally got it to show in game HUZZAH! but strangely it shows above the heads of everyone in the level. the player AND the enemies. any reason why? i am spawning the health bar within a base BP for all my enemies. nothing links it to my character....

[faint badge]

That's what the code above does. For a given X and Y then atan2(Y, X) will give you the angle of that vector although it'll be 0 to Pi one way and 0 to -Pi the other way (or 180 in degrees) so you need to offset it. Once you have that angle you can just divide it by however many angles per segment you have

[mild pine]

@faint badgeOh wow, that's awesome! I'll make sure to save that for future reference, thanks a lot!

It's at times like this that I regret not paying as much attention to algebra and other mathmatic courses as I should have when I was a teen 😂

[faint badge]

Hah yeah, definitely. Although if it makes you feel better I actually got my degree in Math and yet I only really started understanding this stuff once I started using it in games. I didn't even think of things like the atan2 trick until someone showed it me

[mild pine]

Hehehe, it's certainly fun to discover what these things we learned can be used creatively to solve problems!

[ancient atlas]

okay it no longer shows on my character but it isnt registering any damage taken.....slowly getting there

[faint badge]

If you haven't seen it before I'd strongly recommend checking out Freya's youtube channel as she goes through a lot of the math for gamedev in a really clear and understandable way. She's a heathen who uses Unity sadly but we can't all be perfect

https://www.youtube.com/user/Acegikm0

[icy dragon]

heathen who uses Unity

Hehehe

[mild pine]

Thanks for that resource, I'll definitely check it out! Been watching this guy a lot recently, definitely a lot of fun! https://www.youtube.com/watch?v=X-iSQQgOd1A&list=PLFt_AvWsXl0ehjAfLFsp1PGaatzAwo0uK&index=8

[faint badge]

Ooh yeah, Sebastian's content is awesome

[ancient atlas]

This is the code i have for the widget to show the proper health value. It is exactly the same code i use for the player and that works. any ideas>

[heavy lion]

@tight schooner Pretty much yeah. Its for blending between different settings in a time of day blueprint.
Im looking at examples and trying to figure out the best way to do it

[sonic crow]

I am almost there, when the bomb spawns it highlight the tile, meaning it recognizes which tile it is on, however my blueprint has locate to tile and set selected tile after it spawns and therefore i think this is why it is not moving to the center of the tile but where my character is standing, how would i work with this to make sure the bomb always spawns from the center of the tile

[odd ember]

how are you getting the center of the tile from the mouse pointer?

[heavy lion]

Do I use a 0-1 (Day Length/Duration) value to drive curves to affect skylight, fog blah blah, or use structs and lerp between presets

[sonic crow]

I spawn the grid from game mode, i get and set the grid, i have a branch to determine if the player is selecting a position on the grid or not, if they are i get player controller, get the hit result from cursor, break the hit result focused on location and rotation, set it to world location and rotation, locate it to tile, and then set it to selected tile

[sonic crow]

i think the challenge is to set it to selected tile before it spawns

[odd ember]

so why can't you do the same to spawn the bomb?

[sonic crow]

i tried using break hit result but i needed to connect it to a hit and i am not sure what hit to connect it to

[odd ember]

why aren't you storing the hit result or the current tile?

and then just getting it for bomb spawning?

I don't understand

this seems like the easiest thing in the world to setup

[sonic crow]

not sure what hit to put here for the bomb

[odd ember]

given that you've already done the hard work of figuring out the tiles

you dont need that though

[sonic crow]

not sure how to store hit results do i need to use a line trace ?

[odd ember]

look

you have the data already

when you moved to the tile

right?

you can get the location from where the player character is standing

and do the exact same process

I'm not sure why this is causing such a headache

[sonic crow]

As you can see I do that but it does not reposition it to the center of the tile

[odd ember]

so how did you make it happen for it to reposition to the center with the mouse? you're using the same parameters, a location

[sonic crow]

asw you can see the only difference is i exclude the hit result method

[odd ember]

there is no difference

you are using a location

it's the same setup

[sonic crow]

agreed but it does not work, it spawns in the wrong location not to the center of the tile, while when i move i move t o the center of the tile

[odd ember]

well ok

you are taking the location before you find the tile

whereas you probably need to find the tile first from the player location, and then spawn the tile based on the location

did you make the SetSelectedTile function?

[sonic crow]

yes

[odd ember]

you're even getting the correct grid location inside of it. why not return that at the end of the function so you can use it to find the exact location of the center of each tile?

it seems like you've been sitting on the solution all along

[sonic crow]

i am not sure what you mean

[odd ember]

TileToGridLocation returns exactly what you need?

like I don't understand how, if you made this function, didn't consider that?

[sonic crow]

it is technically included by the functions location to tile and set selected tile,

[odd ember]

right... so what is the problem?

[sonic crow]

You can see it here, i included what you suggested after spawnactor, it does not work as previously mentioned

[odd ember]

but you have the solution

[sonic crow]

im new to blueprints and unreal, i believe what i have done is the answer and should work but it does not work, perhaps you could provide some clarity on me having the answer please 🙂

[odd ember]

.

you even went into the function itself

where you have a checkbox for the center of the grid location

you were looking for that, yes?

I don't know how else I can explain it to you

[sonic crow]

I am not sure what you mean by a checkbox, the game currently recognises which tile the bomb is planted on, it is just not spawning it to the center of the tile

[odd ember]

but it would if you used the TileToGridLocation to spawn the bomb

like the solution is right there

this is beyond bizarre

[sonic crow]

ok cool give me an hour, i have not slept lol I will make some coffee and come back with a fresher pair of eyes, ty for the help

[odd ember]

all you need to do is: at the end of your SetSelectedTile function, expose the Location you make from GridLocation(x,y) + ActorLocation(z)

then reorder it so you get that location before you spawn the bomb, and then use it to spawn the bomb

[sonic crow]

I re-organized it so that spawn bomb is last, but the double bomb spawn location is creating an infinite loop and crashing the game

[odd ember]

you didn't expose the location from SetSelectedTile this is paramount

and it's causing an infinite loop because you keep spawning it lol

[sonic crow]

lol you right, not sure how to expose the location from setSelectedTile, does this look right?

[odd ember]

just a vector, the 3d yellow kind

and then use the MakeVector node to create a vector

and hook the float inputs up into that

[sonic crow]

which float?

[odd ember]

inside the function

[winged sentinel]

@odd ember out of pure coolness, this is what L4D2s AI/Progress system looks like

[odd ember]

I have no idea what I am looking at

[winged sentinel]

pure insanity

[odd ember]

that was here even before you posted the image

[winged sentinel]

lmfaooo

thats literally how they track ur progress thru the level

i didnt realize it was that in depth tho

and at the end of each arrow is a trigger box that measures "flows per second"

[odd ember]

I'll be honest I've never looked much into systems like that. but yeah I guess if you really want something tracked by distance covered I guess that's a way to do it

[winged sentinel]

i just thought it was cool to show

lol

[sonic crow]

Not sure if i followed correcftly but now the bomb wont spawn

[winged sentinel]

i cant do that ill do a dumbed down version of it

very very very dumbed down

[odd ember]

make vector node is correct. now find the return node inside the function, and attach the end of the make vector node to that

[odd ember]

well consider how important this is. I'd say basing progress based on player achievements is much better than just their movement through a level

also L4D2 does not have procedural level design

which means those flowmaps are static

[winged sentinel]

well i want to punish backwards progression

or not moving at all

[odd ember]

sounds unfun

[winged sentinel]

im making an ai director basically

it does sound unfun but a lot of games have it

my levels will be static but my enemies and item placement will be somewhat procedural, same spawn locations, but different items and such

[odd ember]

popularity arguments aren't great for stuff like this. find a good reason to have it, or otherwise, if it's not fun to have, cut it IMO. having an AI director is fine. having an AI director that screws you over when you're already stuck is frustrating

[sonic crow]

Cool bombs are spawning , it is almost perfect, but they spawning at the center of a vertices just making sure before i tinker that i did the nodes as you suggested

[winged sentinel]

well i have a system in place that gets the stress level of each player and asjusts the director accordingly

[odd ember]

on the front of SetSelectedTile expose a boolean called ShouldCenter. inside of the function, route it into Centered?

[odd ember]

just be aware that artificial stress meters aren't accurate

you don't know how the player is actually feeling

but barring that, it sounds good. procedural items etc. is fine

[winged sentinel]

yes its actually turning out pretty well tbh i just need to feed the system more data to use so it can spawn enemys and such

makes the replayablity waaaay higher

feels fresh each time

[sonic crow]

when you say route it into centered do you mean promote the "ShouldCenter" variable and call it "Centered?" or do i create a function?

[odd ember]

I am trying to be as concise as possible. I gave you the keywords. on the front of the function. a parameter. I don't know what you are doing in the back of the function with a variable.

[sonic crow]

thank you, lol i have not slept appreciate your help it is working, i already had the variable is centered?

Apologies again I am getting use to the termology still, first week doing unreal

[odd ember]

yes but the point is if you expose it on SetSelectedTile you can choose whether to have it on or not

in this case it makes sense to have it on, but there may be other cases where it doesnt

I also want to say, for the sake of the people helping you, please do sleep

it has been a pretty frustrating experience helping you out here

[sonic crow]

you are a legend and part of the reason why many aspiring ue4/5 developers will make cool stuff and possible have careers, you are appreciated.

[winged sentinel]

@odd ember Did some digging in hammer editor and l4d documentation, those arrows are procedural

BEcasue they got docs on it for custom map makers

The nav mesh will generate it once placed

basically you play "walkable" nav meshes around the map and they generate the walkable area by filling in the area up the geometry it hits, if it doesnt hit any walls, then it continues only so much and youll need to place more if you want to fill a large area

but you can also manually split them

[odd ember]

you could probably do something like that, but it's outside of the scope of #blueprint

[winged sentinel]

yes understood, just some cool info

probably will go into the ai channel i assume theres more info there on nav meshes

[odd ember]

if you're lucky 🙂

[winged sentinel]

true well see

i might just experiment rn and see what i can come up with

lmfao

[wooden rapids]

Does anyone work with a pure Blueprint replay system

[odd ember]

nope. I doubt that's a system that's possible to make within blueprint

[icy dragon]

No. I myself wen't through C++ to do replay system (and even then my implementation is not final)

[wooden rapids]

Thank you for the Information , well done

[tropic pecan]

Hey there, does anybody know a way how to connect a Enumeration to a Get Utility or some other way for a character class to be selected through the selection of an Enumeration?

I'm aware that the Get Array only helps select a number of a character class but I'd like it to choose someone with in the Enumeration selected which I'm not entirely sure how to.

[odd ember]

a Select node?

[tropic pecan]

I'm not quite sure how a select would help. It's a bit hard for me to explain. I'm suddenly getting a little lost in my question.

[odd ember]

well if you don't know what your question it, it makes it very difficult to answer

[tropic pecan]

Yes, I know, I'm sorry. I think I should look into this a bit more.

[dawn gazelle]

If you're trying to select the class to spawn based on the value of an enumerator somewhere, then a select is definitely what you want

[tropic pecan]

I'll analyze this advice. I may ask about it. Thank you very much!

[odd ember]

I mean it's what I said as well

lol

[tropic pecan]

I'm still uncertain if this will solve my problems but I'll ask again in a clearer way next time if needed. I'm very sorry, I think I'm just tired.

[faint pasture]

Make no mistake, select is what you're after if you want a class given an enumeration.

[tropic pecan]

I'll think through this. I'm making a 3 different player unit roll and I'm having a hard time making an accurate function. I have to make it possible to gain, loss, or add new player units and what type of roll they are and effects the gameplay and I thought Enumerations for the current 3 rolls would do the trick. I'll work on this in time. I think I should ask again when I have a clearer thing I try to question about cause I wasn't entirely sure what the results in my question if weather or not it was the right way. Again, thanks.

[wooden rapids]

Thanks for Advice

[winged holly]

is there anyway to change the class of unloaded assets whose class are invalid ?

[hardy fable]

possibly. if the asset is invalid because its class was renamed out from under it, then a core redirect will usually fix it.

[thin sorrel]

Hello everyone! I have a problem i can't wrap my head around.. Is it possible to modify the Travel Cost in Navigation Query Filter during the runtime? I Need an AI to cross the "forbidden" area. I Know i can have multiple filters but i try to avoid creating more filters since this is a thing that should be possible with one Filter Class..
Thanks!! 🙂

[gentle urchin]

I'm a bit curious about why you don't want more filters? 😛 Cant help much regarding your actual issue

[thin sorrel]

Its more about that i want to modify the values of NQF from a Struct so it won't be "Fixed value in the filter" and it could be more "dynamic" 😄 maybe i am creating more problems than it has benefits

i was just wondering if something like that is even possible from BPs

[gentle urchin]

knowing bp in general, unlikely

[thin sorrel]

alright, at least i tried, thanks 🙂

[gentle urchin]

wouldnt dynamically changing the data in such a struct cause the data in the struct to be unreliable tho?

[thin sorrel]

🤷‍♂️ maybe.. 😄

[burnt oracle]

I'm doing a lot of work with snapping and clamping vectors. I have a situation where the player can drag an object, but i want to constrain the local location of this object.
the only problem is that I want to have this constraint be non-uniform (e.g. min: -5 , max: 10) but the way i'm currently calculating this constrained vector is to use the local location (actually the delta between the current and start location), the constraint local direction vector, and clamp the length of the location projected. the length is of course always positive, this means that It's constrained to the max in either direction.
I tried offsetting so that the min is abs(min) and max=abs(min)+max (and then subtracting the abs(min) afterwards) but I've had no luck.
does anyone have an obvious way of doing this that I'm missing?

[gentle urchin]

I was thinking map range, but it doesnt change the fact that the snap to grid returns positive value always

[hybrid ether]

Why this doesn't work? prints correct.

[gentle urchin]

fuel% is 0-1 ?

or 1-0 ?

Clamp doesnt change the value

[hybrid ether]

max is 1

[gentle urchin]

you want the map range clamped

In= 1 to 0
Out= -90 to 90

[hybrid ether]

Thank you it's working now

[digital blaze]

hii! i was wondering if its possible to hide lights and spotlights just for the owner (light components dont have only owner see and owner no see options)

[digital blaze]

spotlights and lights don't have that

in ue4 4.26.2

[dim robin]

what are the benefits of using construction script (construction graph)?

[timber knoll]

making changes that are visible in editor

beginplay will only be visible the moment you start playing

[maiden wadi]

Construction script is also not ran at playtime for actors dropped into level.

[fiery glen]

if this is multiplayer this appears to work. it checks if they are the same as the local player 0

[digital blaze]

ill try ittt

[fiery glen]

Get owner implies they are owned by a character, I should say

[digital blaze]

that worked just perfect!

[digital blaze]

thank you so much

[ornate wolf]

I am trying to rotate my top down character correctly relative to the camera, even if let's say it's not right behind him but rotated by -90 degrees (the spring arm component). I do understand I have to do some transformation of the inputs with the camera rotation, but I'm not sure how

[timber knoll]

you should first get the rotation of your input

aah wait you use the rotationfromxvector alright nvm

all you have to do is simple math to combine the 2 yaws into the actual character yaw

iirc you should be using the relative spring arm rotation to have correct rotation

and then do RotationX(Yaw) + float(90) + springArm(Yaw) as control rotation input

but I could be slightly off with the math 🤔

[ornate wolf]

I will try to add the rotation some way then

[timber knoll]

just split the RotationFromXVector

so you have both yaw inputs

[finite flax]

help noob? I’m trying to add regular movements to Bp_VRpawn, when i do, the character flies/floats rather than moves, so i discovered that i need to change my class settings to (Character) but if i do that, a lot of the BP references break, & i need this exact actor, i don’t wanna create another actor(character). what should i do? Thx for help

[timber knoll]

is it a flat surface?

if so you can simply make the Z component of your movement vector 0

else you will have to implement gravity of some sort...

[maiden wadi]

If you need to change classes, you don't really have a choice. You just go back through and fix up all the errors and make sure it's still working fine.

Source control would help though. 😄 Or at least a backup of the pawn file.

[atomic salmon]

The alternative @finite flax would be to write your own ground detection code and implement some basic collision checks

[timber knoll]

for VR that wouldn't be too hard

[atomic salmon]

@finite flax I am showing ground detection in VR here: https://youtu.be/lKxf0yhGJJ4?t=858

[finite flax]

This is the result when i add movements, unfortunately floats

[finite flax]

I’ve actually followed your video for movement and it works as it should with a from the scratch Character, works great, but guess I’ll have to figure how to do it to a pawn i guess

[atomic salmon]

@finite flaxthe idea behind using a Character is that it does it for you (floor detection, collision, going up/down the stairs, ramps, etc.) It is possible to replicate those functionalities on a pawn and it is actually not that difficult depending on your level of knowledge/experience with Unreal.

It becomes more complicated if you want to properly handle IRL / room scale movements and if you need a multiplayer experience.

[finite flax]

Okay that’s very good to know

[onyx token]

so i have an inventory, which is an array of structs (the structs are items - like apple is a struct that has a bunch of properties such as price, weight, amount, the actor, etc. etc.)

And i have a chest, which also has that struct array - and i'd like to randomly fill that chest with items.

How would i do that best without doing everything manually?

[finite flax]

Is floor detection explained in this video too?

[onyx token]

like- i could do this for every single item in every single chest, every single time, but that's painful af
https://cdn.discordapp.com/attachments/847253861403197471/912315289964773407/fNQcGKuAm1.mp4

i'd like to randomly fill them automatically with a random selection of items whenever i place one down

[plucky harness]

i have data tables inside data table, is there a way to get out the row specifics out of 2nd tier data table? i am getting out wildcard, which isnt helpful to me, i cant cast to specific data table either

[timber knoll]

You will need to have the items data stored somewhere

[onyx token]

yeah

[timber knoll]

and on beginplay you would just access that data once, for x amount of times

to add items to the chest

[onyx token]

with a cast?

[timber knoll]

you wouldn't need a cast

[onyx token]

So i just have an empty object floating somewhere which contains a struct array with all my items and then i just cast them on beginplay?

[timber knoll]

you can GetActorOfClass in that case (to get the floating object)

but yes that would work

[onyx token]

ok i'll try that

thanks!

[atomic salmon]

@finite flaxyes, the link I shared already takes you to the right point where I explain it

[zinc blade]

how would I select an actor in game? is it LineTraceByChannel or something else?

[atomic salmon]

@zinc bladeit depends on the type of interaction. If you want to select it by looking at it (from the camera) then yes.

Use a Line trace from the camera along the camera's forward vector and check for the hit actor.

[finite flax]

@atomic salmon i might be missing something here, but when i hover my mouse on top of the bp-vrpawn, it actully says it's a Character, so isn't it supposed to work by itself, since it isn't a pawn right?
am i missing something here? thanks for helping out

[ornate wolf]

@timber knoll it seems to work thank you

[atomic salmon]

@finite flaxyes, that one seems to be based on a Character. It depends on how the Character Movement Component has been set up, but it should have floor detection and collisions through the root capsule.

[zinc blade]

I'm trying to check if it hits my Tower class, and for some reason it does not return or at least Print String

[remote obsidian]

https://answers.unrealengine.com/questions/496415/how-to-render-to-a-section-of-the-screen.html

Hi all, unable to find whether this issue has been resolved - is it possible to render the camera only to a portion of the screen? (in order to display a side bar but still have content centered in front of camera beside the sidebar)

In unity there's a camera feature "viewport rect" which allows this sort of setup quite simply

[zinc blade]

oh shoot I forgot to connect the OutHitHitActor; anyways it won't Print String anyways

[remote obsidian]

Example image from someone else's question on unreal answers (Note how the vehicle is still centered and framed appropriately even with the sidebar taking up a section of the screen):

[timber knoll]

instead of using GetClass, cast to Tower

like so

[atomic salmon]

I see you are already getting help from @timber knoll

[tawny hedge]

which wildcard should I use for an NPC Character?

[zinc blade]

OH WOW THANKS A BUNCH

[zinc blade]

thanks as well @atomic salmon

[timber knoll]

you are just missing a reference really

you can't do something like GetPlayerPawn for AI...

[tawny hedge]

cheers

[maiden wadi]

@remote obsidian If memory serves, this requires use of the GameViewportClient. It's a C++ implementation.

[zinc blade]

how would one "open up" a menu (UI widget prolly) when clicked on an actor

I've tried doing EventDispatchers, booleans, and SetVisibility

that's pretty much hardcoded sadly

[obtuse herald]

via Actor Components?

[atomic salmon]

@remote obsidian is pretty much this

GEngine->GameViewport->SplitscreenInfo[0].PlayerData[0].OriginX = 0.f; // default: 0.f
GEngine->GameViewport->SplitscreenInfo[0].PlayerData[0].OriginY = 0.f; // default: 0.f
GEngine->GameViewport->SplitscreenInfo[0].PlayerData[0].SizeX = .7f; // default 1.f
GEngine->GameViewport->SplitscreenInfo[0].PlayerData[0].SizeY = 1.f; // default 1.f```

[remote obsidian]

@atomic salmon @maiden wadi
Cheers I'll have a look 🙂 Had seen that mentioned around so I'll give it a go

[zinc blade]

yeah, like mine.
I've set the Widget and its Widget Class as a Component already

sadly I have 5 other towers and they seem to have the same UI

I can't quite figure out how to vary them depending on their data and such

[obtuse herald]

Do you want to set a different desinged widget for each tower?

Because else you're probably just handling your references not correct

[zinc blade]

I guess this would be the easiest way out, eh? creating their own different widgets

[obtuse herald]

But it's not the nice way, there are pretty much always better ways

depending if your towers have a common base tower class that holds all information you can handle it via the base tower class

[atomic salmon]

@remote obsidianstill works fine in 4.27.x. Just tested it.

[obtuse herald]

if you don't use much class hierarchy you can also give a look at interfaces

[remote obsidian]

Perfect, works as needed! Thanks 🙂

[mild kestrel]

Hi, in which channel should I ask questions about light problems, cameras and stuff?

[rose elbow]

Can anyone help with this error?

for this code

I'm and idiot lmao

just needed to attach something to the exec for set the reference

[dawn gazelle]

Your set isn't in the execution path.

[rose elbow]

yeah I got it lmao

[gusty plover]

Hi every one! I really need some advise. I am trying to move my character to a spawned actor. But I want to be able to spawn multiple actor, and my character will go to the first one, then the second one, then the third one and so on. But right now the player goes to the first one but ignore the other one. I guess because the destination variable is not set again. If I move the DoOnce before setting the variable, then the character will directly go to the last spawned actor

[near crag]

How do I make my player character rotate in the direction they are moving while climbing vertically? Like the way an insect crawls on a wall instead of having them shimmy left/right. I have a feeling I might find a solution in these BPs for the climbing system but after messing around with it I'm not sure.

[wary tinsel]

hey guys I've done a menu system where I can modify all the video settings. It's working fine but when I change resolution or the graphics quality it looks like broken even if I refresh and apply settings. What's the right way to implement this? Should I force players to restart the game?

[dense nebula]

my friend got this when he want to try my game

how fix

[wary tinsel]

no errors while playing in the editor?

[atomic salmon]

There should be crash logs in the Saved folder you can look at

@dense nebula

[dusty orbit]

Hi guys, im following a tutorial series. At one point he got us to rename the BP_CharacterBase

Now the player wont move anymore

Bit lost as to where the connection has been broken

Its using Interfaces

The movement is done in the BP_PlayerController

[kindred marsh]

Hello friends. I am a new Developer and i am very confused with the Casting. I am working on a project and i have a NPC pawn with some animations. I put the animation on a custom event and now i want when my player press a button to activate the animation of the npc pawn. But i dont know what i must put in the object pin. Could anyone help me?

[atomic salmon]

@kindred marshthe base to make this work is to understand Blueprint to Blueprint communication.

You can have your pawn Blueprint tell the NPC Blueprint to run a certain event (or call a function into it). For that to happen, your Pawn BP has to have a reference to the NPC Blueprint it can talk to.

There are few ways to get that reference. One is to directly set it inside your Pawn BP, provided your NPC is already in the level. Another is to use Get All Actors of Class to get a reference to your existing NPC in the level and, assuming there is only one, "talk" to it.

[obtuse herald]

Casting takes a reference, and gives you a more exact reference (if possible).

[kindred marsh]

So i must create a variable in my pawn (for example) and then i could set it inside my player so i can communicate?

[atomic salmon]

@kindred marshSay that both your pawn and the NPC are in the level, you can create inside your pawn a variable which is a reference to an NPC actor. Then you assign the actual NPC actor (instance) in the level to the variable (with the eye-dropper for example). At that point you can "talk" to the NPC from the pawn through that reference.

This uses a direct BP to BP communication. Then there are other ways that are a bit more complicated like using interfaces and dispatchers.

[kindred marsh]

Ok lets see if i understand that. I Create I variable inside my pawn (Tester)

and then in my NPC i try to set it so i can make them communicate

[atomic salmon]

@kindred marshInside your pawn you create a variable of type Reference to the same class as your NPC

So if your NPC is of class BP_NPC that's what you need to look for

That's step 1. But now the reference is empty (null), so you need to have it point to an actual actor (instance) in the level.

So Step 2, you click the little eye on the right side of the variable you just created. That makes it visible within the pawn in the level. Now you can use the eye dropper to select the NPC in the level to make the connection.

Now that you have a valid reference, Step 3, you can use it to call an event or function within your NPC.

[kindred marsh]

'TesterPawn' is already a 'Woman Pawn', you don't need Cast To WomanPawn. Ok i am confused again. Sorry for that. Is there any UnrealLessons or tutorials for casting so i can study them?

[atomic salmon]

To understand casting you need to understand that classes can one be derived from the other.

[kindred marsh]

My NPC has pawn class as Parent class so i believe that i must choose this type for my variable

Right?

[atomic salmon]

You need to choose the class of your NPC pawn

If you choose the parent class, then you can still get a reference, but you will need to cast it first

Let me explain

You have a parent class and a child class, derived from it

You can use a reference to the parent class also for the child, but then you will "loose" all specific child functionalities. To gain them back, you need to case the reference to the child class.

[kindred marsh]

yeah but if i choose a "Woman Pawn" as a class and then try to cast i have this message: 'TesterPawn' is already a 'Woman Pawn', you don't need Cast To WomanPawn.

[atomic salmon]

are you trying to cast to the parent class?

What is the exact class of your NPC in the level?

[kindred marsh]

Woman pawn

I could share my screen if you like and you have the time

[atomic salmon]

TesterPawn is the name of the variable you used for the reference?

[kindred marsh]

THANKS FOR YOUR TIME AND EFFORT OF COURSE

[kindred marsh]

yes yes

sorry if that confused you

[atomic salmon]

Ok since you already created that variable to be of a reference to a Woman Pawn it is a Woman Pawn already

You don't need to cast it

Let's not confuse the variable name with its class

We can screenshare if you like

[kindred marsh]

ok i thing that i start to understand

So i have a variable inside my pawn named TesterPawn that is type of WomanPawn

[atomic salmon]

Yes. Is your Pawn in the level?

[kindred marsh]

Is that ok?

And then i try to set the TesterPawn variable inside my WomanPawn

[atomic salmon]

You have to select your MotionControllerPawn in the level

Then under Details you will see the TesterPawn variable which you can assign

[kindred marsh]

So i must drag and drop my MotionControllerPawn inside my level?

[atomic salmon]

Let's screenshare

easier

[dusty orbit]

Any ideas why my player caant look up / down?

[odd ember]

try removing the clamp?

[paper raptor]

If that doesn't work, check if your pawn is set to use pitch input

[dusty orbit]

Dont think its the clamp

Im trying to follow a tutorial

So its uses instances

[odd ember]

have you tried removing it?

[dusty orbit]

Yeah

All the movement is done in this BP_PlayerController

and then you link it to your Player_Character

I got WSAD working

But the mouse movements dont take for some reason

The exact same setup on my "tester" character are working fine

So it must be some setting on this BP_PlayerController but i have no idea what 😄

https://www.youtube.com/watch?v=maG2YnVnIVM&list=TLPQMjIxMTIwMjHx32v21UwjFg&index=2&ab_channel=DevAddict

[odd ember]

this is why I don't follow tutorials

[dusty orbit]

Yeah but im legit a total noobie 😄

Where would i check for this Pitch Input setting?

[odd ember]

I mean the axis could be not set

[paper raptor]

There are multiple pitch stuff you could change, but this case you want to change it on the spring arm, since that rotates the camera for you

[dusty orbit]

If i load up my test BP it works fine

Like ive had it working inside this project on another BP i mean^

Hmm i dont have a spring arm

Cause im trying to do FPS

So i have the on the mesh

Or do i still need an arm?

[paper raptor]

Then you want to do that on the cam

No spring arm needed

[dusty orbit]

Ah i got it thanks

[paper raptor]

Yeah check if that works that's really the only thing I can think about

[dusty orbit]

Its working thank you man

[paper raptor]

No problem 🙂

[dusty orbit]

Jeeeze felt like i wasted so long on that xD

So many properties in so many different places

Truth be told it makes no sense to me why this is not done in the BP_Playercontroller

If thats where all the movement is handled

With this guys tutorial i mean

[odd ember]

because tutorials are made by people who don't know how to do things properly

most of the time anyway

[dusty orbit]

I guess so

[odd ember]

when I look at tutorial I look for what they are conceptually trying to do

[dusty orbit]

seems like that option does not exist anyway unless you have the camera in with a mesh or something

[odd ember]

and then do it the proper way

[dusty orbit]

Yeah but heres the thing - you don't know what the proper way is until you follow some guides or learn 😄

[odd ember]

... you do when you spend years at uni learning the proper way

[dusty orbit]

Anyway thanks for the help

Im 32 and not going back to Uni to learn a hobby project 😉

[dense nebula]

does anyone know why: i start my game with 70 fps and just stop not do anything and it is start getting bad -1 fps every 10 second when i play 10 munites it is just go to 25 fps

[odd ember]

yeah but you were insinuating that this is the same as watching youtube tutorials

when I can assure you studying system architecture requires much more hairpulling than any youtube tutorial ever will

[dusty orbit]

Well no i didnt but ok, see ya

[odd ember]

sounds like you're spawning something that doesn't turn off

[unique wasp]

I have this really weird situation where an object that I created with SpawnActor will only be found by GetHitResultUnderCursorByChannel half the time: the other half of the time the ground beneath it is returned. Then when I spawn another object with SpawnActor, the previous one is suddenly found consistently by GetHitResultUnderCursorByChannel and the newest one is found only half the time. What might be causing this very odd behaviour?

[maiden wadi]

Are you by chance leaving anything behind? Something in the building tool that could block hits?

[odd ember]

can you show your code?

[unique wasp]

@maiden wadi That's it! The 'cursor' for placing a station is hidden when a station is disabled, but apparently that doesn't disable collision. I've added SetActorEnableCollision now to disable collision on the 'cursor', and that fixes the issue. Thanks! :D

I had assumed that because UMG elements lose collision when hidden, actors would too. Guess not!

[versed zealot]

Hey guys -- I have a general question... I have an array containing structures, and during gameplay I am writing to that array, filling it in with the structure

How can I check the array to see if I have written data to the structure at a given index? I'm looking for like... isValid for structures... if I had a guess

[odd ember]

IsValid can't really exist for structs

[versed zealot]

I could break down the struct into any of its more rudimentary variables and check for a value

[odd ember]

because structs are generic there wouldn't be a one size fits all approach

even in cpp you have to overload an operator to get something like struct == otherStruct

I think checking IsValid on your array index is probably the best way

at least in BP

[versed zealot]

Got it, and that makes sense

Simple solution, thank you @odd ember . I just used the is valid index node

[faint pasture]

Check if struct == defaultstruct

assuming the array was default filled

[versed zealot]

Thanks Adriel for the suggestion. CE's solution solved it about as simply as possible so I'm inclined to leave it as it

That said, how would I check that, dragging off the pin in blueprint?

[obtuse yoke]

hallo, im having a few problems with collision in my project. The first pic is a box collision of a pawn, and the second pic is a capsule component of a character. for some reason my character just passes right through my pawn, even though the pawn is a physics body because i enabled phsyics on the static mesh

[faint pasture]

@versed zealotIf you know the array is empty besides what you put in it, then just check if the index exists. If it is empty filled, check if contents = default struct

[odd ember]

what node compares a struct with another struct?

[versed zealot]

Yeah that's my question

[faint pasture]

equal

[odd ember]

equal doesn't work with structs, just tested

[versed zealot]

I don't see it... I keep context sensitive on

[odd ember]

it would be weird too, given that even in cpp you have to make your own operator==

[faint pasture]

dafuq we cant compare structs in bp? lol. I've only ever used it for C++

ya looks like we can't

lame

[odd ember]

why wouldnt you check before giving that advice tho

[faint pasture]

because

[maiden wadi]

To be fair. You can't do this in C++ without the operator on the struct either.

[quick pagoda]

hey, i've been trying to make my character's mouth open once unreal receives microphone input, i was thinking of something super simple like animal crossing like mouth movement like, just changing the texture, does anyone know how to do that? im really just a beginner so i dont know that much about unreal yet -w-

[odd ember]

.

[odd ember]

I think that's a question for another channel if I am being honest. perhaps #animation ?

[quick pagoda]

oh sorry, i just joined this server, still a bit lost

ive already made the animations i only want to make it work in unreal tho haha

[odd ember]

animations can handle state machines

[finite maple]

How can I use an input axis to set the movement speed of an object to start slow and wait a certain amount of time before reaching top speed?

[odd ember]

well see, the input axis is actually a scalar value

so that behavior is built in

I believe the third person template also handles the corresponding 1d blendspace for animation

[atomic salmon]

FInterpTo

[odd ember]

ah yeah you could route it to an Finterp node

but already from the get go you should have your behavior

[fervent jolt]

Hey, the blue arrow list thing only wants to accept character blueprints but I want to stick a pawn in there, how can I make that happen? Thanks in advance.

[finite maple]

This doesn't work for me because I need to limit how long it takes them to get the object moving at top speed.

[finite maple]

I'll look into this. Thanks

[atomic salmon]

Change the variable type to Pawn (ref to class Pawn)

Be careful because you can break a lot of things that way. Not sure if it is your code or someone else’s

[fervent jolt]

Ah ok, thanks!

[errant terrace]

Hi guys, can anyone help me with a Blueprint Runtime Error: "Accessed None trying to read property error? I am tearing my hair out and can't progress with my project...

[formal wren]

Anyone understands, why the key doesn't hold a value when I add it like this:

The texture2d attribute is empty, even though the texture2d connected to the FMakeImportedTexture2D Node is valid

[atomic salmon]

Show some code pls

[errant terrace]

Blueprint Runtime Error: "Accessed None trying to read property CameraPawnRef". Blueprint: CameraPawnController Function: Movement Speed Calculation Graph: MovementSpeedCalculation Node: Return Nod

[odd ember]

use the node called something like Set Struct Members

[atomic salmon]

Means CameraPawnRef is null, so it doesn’t point to anything

@errant terrace

[odd ember]

structs in BP are unfortunately terrible to work with

[atomic salmon]

Go back to where you set it and check that it is assigned properly @errant terrace

[odd ember]

also is this a cpp struct?

[formal wren]

Nope

Mmmh doesnt seems to work eiterh

am I using it right:

[errant terrace]

Would you be able to discuss briefly?

[formal wren]

@odd ember

[odd ember]

you're not setting any members in it

[atomic salmon]

Sorry cannot screen share right now

[formal wren]

Mmmh but there are no real input pins for members 😄

[odd ember]

if you look at the details panel while selecting the node...

[formal wren]

Aaah :d

😄

@odd ember Thanks 😛

[errant terrace]

@atomic salmon I am fairly sure it's set correctly here?

Sorry for noob questions, I've only just started using Unreal

[odd ember]

the cast likely fails

put a print node at the cast failed pin and see what it says

[atomic salmon]

^ that

The print node per se won’t tell much though

[formal wren]

Still doesnt work. Seems like he doesnt add the struct to my map propperly -_-

[odd ember]

structs in BP are difficult to work with because structs are copies

[brazen merlin]

its more about when it is called. if you are running movement speed calculation on tick, then the cast needs to happen on begin play, and then the movement speed calc should also check if it is valid (could also call the cast in construction script)

[atomic salmon]

The only way that cast can fail is if your pawn is not a camera pawn

[odd ember]

so you may need to do something like Set by Ref on the map, if possible

[brazen merlin]

sorry macro, meant to click on TheJaggySnake for reply

[atomic salmon]

No worries

[errant terrace]

@atomic salmon @brazen merlin My default Pawn Class is set to use my custom CameraPawn

[odd ember]

it's also worth doing a breakpoint and checking if it actually pushes the value in the first place

[atomic salmon]

Which is a pawn or a character?

Despite the name of course

[errant terrace]

Pawn

[atomic salmon]

And your pawn has been properly possessed by the player?

[errant terrace]

I believe so, my player controller class is set to use my CameraPawnController.

If I use GameStateBase then the pawn is controllable with no issues, but it's only when I have set the game state class to use my custom game state that the issue is there. However I have built an in game clock/calendar on my custom game state BP

so ideally, I would like to get it working on that 😛

@atomic salmon (Forgot to reply)

[atomic salmon]

Check 1. Make sure Get Player Pawn returns a useful reference. Use IsValid to check before the cast.

Check 2. If the previous one is valid, check where the cast fails.

In that case there is a mismatch between the class returned by get player pawn and the class you are casting to.

[formal wren]

Okay, I fixed it by creating some local variables for storing copies of my maps. Now it works 🙂 Thanks

[mild pine]

Hey guys. Do you have any suggestions on how I can improve upon the following?

1: Input is pressed, which triggers some boolean checks and an event tick which is running if the input is pressed. This then collects the data of where the mouse is on screen. I need this per frame, as when I have the input pressed I wanna be able to move my attack direction (imagine Bannerlord weapon combat).

2: The values based of the mouse direction is set as an enum, which I then select to play an animation montage (I need this to be an animation montage, hence why Im not doing it in anim BP or states - if theres a better way for this do let me know hehe). I want this animation montage to do two things: loop until I release the input, AND update based on the enum values set earlier.

Atm it's behaving very jittery, and Im struggling to cancel the montage when the button is released. I tried to do OnInterrupt, but that doesnt work properly for me. Any recommendations? 🙂

[odd ember]

this seems like it could be a blendspace but what do I know

I don't know what you want to improve

[atomic salmon]

My two cents. When you have too much going on at once it may be difficult to understand where your problem comes from, so you have to simplify. Disconnect the animation and focus on the movement. When that works, re-enable the animations and fix that part.

[sonic crow]

Quick conceptual question is it best practice to have your character Stamina, Health, Level, special character ability etc in your player blueprint or character blueprint?

[sonic crow]

I am referring to the integers and floats

The second question is just from a best practice point of view would it also be best to keep weapon upgrades and abilities in their own respective blueprints and not the character blueprint

[mild pine]

@atomic salmon Thanks for that insight, I tried to rewire some things here and there. So essentially this is what I have right now;
https://gyazo.com/05e770a79fe972a0fb156770ba462e81

If my input is held, I will continously get the value of where my mouse is. I can change the direction I want to attack as many times as I want as long as my input is pressed. The issue arises when I want to implement an animation to fit this -before- I attack, which would be a "windup", essentially showing other players what direction Im going to strike from, i.e most medieval warfare games have this functionality.

The only issue is that I haven't been able to find a good method of having my animation montages play while the input is pressed, and change when I the direction value is changed 😅

[mild pine]

Would that work with enum states though? I guess X enum state could set a float value to X to correspond with X animation, but then I cant use animation montages and slots for my upperbody blend. Or is there a way to do that in blendspace?

[odd ember]

I don't know? I don't even know what your problem is really

but like

you should handle animation through the animBP

not through montages

[mild pine]

Hmm okay I'll try to do it with a blend pose 🙂 Cheers!

[formal marlin]

Hello

Im wondering how I can use a character from mixamo to unreal engine with animation rigging

[ancient atlas]

i am having trouble setting up a healthbar widget for my enemies. i have it displaying properly but it isnt being effected when its health lowers. Thanks

[faint pasture]

I take it the widget is a widget component on the enemy actor BP?

[odd ember]

you probably need to pass a parameter into the widget for it to work. widget component doesn't allow you to do that

[ancient atlas]

yes @faint pasture i have a widget component on my enemy and it is linked to one i have made which is told to update health on the healthbar. health + death of my enemies is all working but it is not talking to the widget

i can show you some blueprint layout if you wish

[zealous moth]

@sonic crow best is to have it as a struct to transit around. When the character is loaded, import it. When opening levels send the info to the game instance. Etc. Make sure to use set member in struct.

[faint pasture]

Let's take this to #umg

[versed zealot]

Hey guys, another question... through gameplay I am building an array, and I want to reset the array. If I set it equal to itself, it doesn't change (obviously) so I want to use Make Array... the problem is, even though that has a 0 pin, it still sees the first index as valid when it comes back around...

Am I missing something? Does Make Array build an empty array or?

[brazen merlin]

use Clear

[versed zealot]

Thank you

@brazen merlin Simple. Thank you, that fixed everything immediately... any reason why Make array instantiates with 1 item?

[pulsar path]

looking at creating an inventory system, i have a rough idea of all the components i need and how to make them.
im just not sure what the ideal way to save the inventory data is? currently im thinking a String-Int Map? for the purposes of my game, a simple list of int's appropriately named to each item would be sufficient but i dont really want to create the (potentially) hundreds of variables right alongside the other player data variables like hp, score, damage, etc

[brazen merlin]

i think because you are "making it" so the array creates an entry rather than being seen as truly empty

[quick lance]

Is there an optimization difference between the top and bottom of these?

[dreamy ice]

Not that i've ever tested it, but i think if there's nothing to loop through then theres nothing to loop through aand it instantly completes the loop. Just a guess though.

[tropic pecan]

Hey there, I ask does anybody know how to sort out characters from blueprint class with enumerations? I've created a enumeration and my Characters are in classes. I do have an example of is being worked out in a loop but I want it sorted out instead by labeling enumeration. I do also what to ask on rigging them with Booleans to tell who's chosen to follow and who's not but I would like that question last.

I did have the enumeration in a structure blueprint while having it as a map for player units base to help with separating their roll but I can't figure out how to sort them out in the structure spawning.

[dawn gazelle]

You're better off with the bottom option as you'd have one less branch if there is indeed anything to actually loop through. It has a check in it already that verifies if the loop index < length, it goes to complete. You can double-click on the For Loop to see its inner workings.

Though, the branch option is good too as you can then have separate logic for if there is nothing to loop through or the loop was actually completed.

[manic flint]

I have an issue where I have a static mesh that I AttachActorToComponent to another mesh, when I do the controller works on the parent, but the child is rotating as well. How do I stop the child from rotating?

[devout crow]

Guys, I wanna make a counter-attack system just like the DarkSouls, there are any recommend tutorials for me?

[dreamy ice]

If I wanted to know when an event in another component is called to display something in my hud widget what would be the best method?

[icy dragon]

Sounds like the job for either Blueprint Interface or Event Dispatcher.

[dreamy ice]

Does it matter which?

[brazen merlin]

I personally like Dispatchers 😄

[dreamy ice]

I can't wrap my head around interfaces 🙄

[hasty wolf]

i like Event Dispatcher

[hasty wolf]

same lol

[brazen merlin]

i think i get annoyed at having to turn off context sensitive whenever i implement them, so i try the reference method first, the dispatcher, and bpi last if the prior dont work to my needs

[quick lance]

Are you not able to put breakpoints on construction scripts of child classes?

[fiery glen]

Just think of it as a way to guarantee a function is implemented without needing another layer of inheritance between

[hasty wolf]

thanks i will try

[quick lance]

Also, why would a SpawnActorFromClass fail?

[brazen merlin]

a good example would be if the player presses E to interact, that could be a bpi, and it would work on anything ready to receive it regardless of class because the bpi would be added to the class for that sake

[dawn gazelle]

Invalid class fed into it, invalid spawn transform which also ties into the collision handling, the scale in the transform too, if you inadvertently set the scales to 0, it'll still spawn but won't be visible....

[supple bane]

how do I access a blueprint actor INSIDE of another blueprint

[dreamy ice]

my brain is broken at how i want to handle my status effect system

[supple bane]

trying to get it for the object

[dreamy ice]

when you cast there has to be an actor you're casting to

[supple bane]

yea

[dawn gazelle]

Get reference to the object you're trying to manipulate via overlaps, traces, etc.

[dreamy ice]

so if I was to cast specifically to my enemy actor to do something I'd need to get a object reference to that enemy actor.

[supple bane]

ik that lol

im trying to get a specific blueprint actor

[dreamy ice]

you cannot cast something that doesnt exist. There HAS to be an object you're using to check.

[supple bane]

the object im using to check is the boss' healthbar ui element

I need to access the actual boss blueprint to get the health

[dreamy ice]

you need to put an object form of enemy_Blueprint into the object pin.

[supple bane]

ik

i cant

[quick lance]

I'm trying to override a function in a child class and it isn't working for some reason. I never hit the breakpoint in the child class.

[dreamy ice]

make sure to return

if you return false it still runs the parent function

[quick lance]

The parent function is the second image

[supple bane]

turning off context sensitive doesnt help

[brazen merlin]

does your boss character come from the same enemy_Blueprint class?

[supple bane]

enemy_blueprint IS the boss

[brazen merlin]

how many are there in the scene?

[supple bane]

1

[brazen merlin]

and this is the only one that exists?

[supple bane]

yea

[brazen merlin]

great, use GetAllActorsOfClass, use that class, and from the output use an Array Get to get the first one (index 0)

btw, you wont need to do a cast

[supple bane]

that works ty

and yes I realize now

[dreamy ice]

sorry about the bad explanation fam

[brazen merlin]

now if you decide to add another boss or the same class, this wont work anymore. this is just because you have only one existing

[quick lance]

are you saying the parent function has to return true specifically? or the overridden function has to have a return or it won't run the override?

[dreamy ice]

hold on im recreating a similar scenario, because i haven't overrided a function in a while.

[quick lance]

i feel like my engine is broken or something tonight. a bunch of stuff that normally works just...isn't

[dreamy ice]

so you removed where the parent's code is run and its still running?

[quick lance]

let me add in a print or something so that i can tell if it's actually even running parent logic

[dreamy ice]

okay, it wouldn't make any sense for it to still be running parent logic.

[quick lance]

well this is strange

its running the child logic

i just can't hit it with a breakpoint

[dreamy ice]

hmmmmm

[quick lance]

I have another problem that doesn't make sense

The element is valid in Abilities Array, and it hits the spawnactor, but the return value is null

is there a way to like....refresh my debugger?

[dreamy ice]

Show me more?

[faint pasture]

Spawn actor isn't spawning the class element... Not sure if you're jsut trying to test raptor leap but that might be an oversight

[dreamy ice]

^

[quick lance]

I was spawning an actor i know would be valid to remove the potential for that array to be broken

[dreamy ice]

Can you show the full function?

[quick lance]

somehow its working now. the debugger is messed up in some way

it's filtering to a entity that doesn't exist, so it's not hitting any breakpoints unless i manually switch the debug filter in every window every time

[dreamy ice]

oof

[quick lance]

okay

so is there an issue with me spawning objects during another object's construction script?

is that a big no no?

[icy dragon]

CMIIW, construction script is called everytime an actor is constructed in editor, but as far as runtime goes, it'd be the same execution as begin play. I'm sure it's wrong though.

[quick lance]

For some reason I can't get a valid entity to spawn when I spawn it during another actors construction script

[quick lance]

here's the full function. when it gets to that breakpoint, the return is invalid

But ONLY when I run the function during the construction script of the actor

if i wait until beginplay, it works

[icy dragon]

So I was wrong. Construction script seems to be executed first before begin play.

[dreamy ice]

could it be because the actor isn't fully contructed?

[quick lance]

oh u know what

ue4 says spawning another actor during construction script is bad

fuck

ahem, here we are

you can't spawn actor in construction script. it's not an option. I was using it inside of a function which allowed me to bypass that.

[dreamy ice]

lmaoo

im currently still strugging with this status effects sytem

[quick lance]

oh? I've got one in my project, what's up with yours?

[dreamy ice]

i cant figure out the logic in my head

[quick lance]

So I have a status component that handles all status effects.

[dreamy ice]

Each effect is a struct that holds which function activates it and all the info on that

but the timer stuff is wrecking my head

i was trying not to spaghetti code

[quick lance]

you're familiar with set timer by event right?

[dreamy ice]

i hate running a function by timer because I can't supply data that i know of

unless im wrong

[quick lance]

yeah you can't with a function, but an event you kinda can

if the info is valid inside the space where you're using the event, you can get the data

otherwise i think you're stuck with event dispatchers

[dreamy ice]

im trying to make it expandable

if it didnt need to be expandable id already have it done ugh

[quick lance]

what do you mean expandable?

[dreamy ice]

i dont want to have to rewrite it in 2 weeks

As in an infinite number of effects where all I have to do is setup the logic for the effect without worrying about much else

[quick lance]

my systems kinda a shitshow

but it is expandable with little effort i guess

[dreamy ice]

i can bypass it by referencing the latest effect added to the array, but i feel that will cause problems in the future.

i wish I could use a timeline

wait

that doesnt make sense nvm

OOOH

@quick lance I can store a reference to the timer handle in the effect struct once created to access it later on.

[zinc blade]

How would I pass a string data to a Widget Blueprint from a different Blueprint (Controller BP prolly)? I'm trying to pass in an input parameter on a function that I just made in my Widget Blueprint but it says it's not possible to do so.

[fiery glen]

make it a member variable of the widget the controller blueprint can see

[zinc blade]

like this?

OH I think I got it

[zinc blade]

RIGHT thanks!!

[gusty plover]

Hi, I am trying to move my character to an actor. but I want to be able to spawn multiple actor, and make the player go to the first created, then the second one and so on. I tried to use array and for eachloop, but my character always go to the last actor created.

[finite flax]

What can i do to make the hands follow the rotation?
I tried @atomic salmon video blueprints, but I’m getting this results unfortunately, any fix? Thanks a bunch

[surreal peak]

That's because the ForEach Loop will fully run through in one Frame.
Which will call the Timeline every time, and only the last one will be able to actually run.

You would need to do this by yourself

Make an integer variable for the current index. Get the first element from the Array, move to it via the Timeline and when the Timeline finishes, increase the index and restart the timeline with the next entry.

Make sure the index doesn't go out of bounds though

[gusty plover]

ok thamks I'll try

[atomic salmon]

@finite flaxwhat are your hands parented to?

[gusty plover]

it works very well, thanks you!!

[naive grail]

I have a HUD class that spawns an manages all widgets. Widgets depended on level. For example if level == 0, it spawns widget a, if level == 1, it spawns widget b. So can i store that widgets class as soft reference? (It's a mobile game that's why i care that much)

[finite flax]

@atomic salmon

[atomic salmon]

I still don't see the Motion Controllers and the hands in the hierarchy, they may be spawned and attached at runtime

[finite flax]

@atomic salmon you're right actually it's a separate class

[atomic salmon]

@finite flaxare the hands being attached at all to the VR Pawn?

[finite flax]

I would say so, because it follows it when i teleport

[atomic salmon]

@finite flaxtrue, but they don't seem to follow its rotation. You need to find out where they are attached.

[finite flax]

I’ll try to see what’s up, thank you @atomic salmon

[hardy sphinx]

guys do you know how to rotate player to somthing. like when u want to show some screamer

[tight schooner]

@hardy sphinx there's a node called Find Look At Rotation

which you can use to make a rotation target. Doing the rotation smoothly is another step but I'll leave that to you

[hardy sphinx]

i know that but i dont understand how to get info about location of tagret which must be seen by player

[icy dragon]

You might want to look for Set Control Rotation. Chances are it's a third person character, and control rotation take over the pawn rotation.

[tight schooner]

Well, making one actor aware of another actor is a deep subject called Blueprint Communication and you can look up a primer on that. If your pawn needs to become aware of another thing, I'm not sure what to suggest offhand. The "screamer" you mentioned (a monster for a horror game?) is probably aware of the pawn cuz it's already reacting to it, right? It could then call a function or send an interface message to the pawn containing an actor reference or a location vector or rotation target.

[hardy sphinx]

maybe it will be easier to rotate player with capsule and mesh&

[gentle urchin]

Interface or casting , calling a function in the player would probably be the easiest

If player detected -> Get player Character- > Cast to mycharacterclass -> call the function that rotates the player toward the target (input of function being either target itself, or the location of the target (location can be more universal ))

as always, there's a 100 ways to do this

[hardy sphinx]

i tried to do it like this, but unfortunately it doesnt work

[formal dagger]

Not sure it's the good channel for this but... i've just started to try to change level during game, and the open level node works perfectly but after that i can't manage to call an event on my main character to set up some variables. is there a manipulation to do when you open a new level ?

[earnest tangle]

if you're not using level streaming it will effectively throw away everything and recreate it

so if you do open level --> run other stuff --> more stuff, everything after open level effectively gets ignored

[hardy sphinx]

work finally

thank u guys

[formal dagger]

ok so bad node, i should use level streamng ?

[earnest tangle]

it depends, you can work around this via GameInstance which is persistent across level loads

level streaming has its own set of challenges

[formal dagger]

ok so i'll try to call event on game instance first

[silk cosmos]

I am trying to set up a key rebinding system in my settings. The problem I am having is that unreals input detector doesnt check for scroll wheel input when detecting for a selected key. How would I go about checking for mouse scroll wheel input, then adjusting the key binding

[timber knoll]

from my experience with recent unreal versions, mouse events are somewhat broken and easiest to handle through C++...

idk what they've done but there's something wrong with them, used to work fine in 4.25 and earlier

[shy plover]

can i somehow change direction of gravity in player bp?

[silk cosmos]

grab the movement component and set the gravity scale -

[blissful widget]

Not this again 😄

Ninja bad

[shy plover]

I not how strong the gravity will be but the direction of it

Where the character will be pulled

[silk cosmos]

Setting it to a negative value will invert the direction, other than that there is no way to change the gravity in blueprint

[shy plover]

i mean custom direction not negative

[wary tinsel]

is there a command to restart the game?? I need to restart the whole game to refresh graphics settings

[silk cosmos]

if you want to reset the specific level there is a node called get current level name and you can plug that into open level, but if you mean the entire game you can just re open your start level

[wary tinsel]

will open level refresh the settings? or player will need to re-open the game manually?

[versed zealot]

Morning all! Is there a blueprint node that can check for collision by taking two meshes as pins? Instead of using an oncollision event and searching for an actor?

[neat prairie]

It's 2pm

[tight schooner]

@versed zealot it's 8 AM here so https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Collision/IsOverlappingActor/

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Collision/IsOverlappingComponent

[versed zealot]

Thank you @tight schooner.

[faint pasture]

You will need to handle that manually and it won't play nice with Character.

[dusk arrow]

What's the difference between GetRandomLocationInNavigableRadius and GetRandomPointInNavigableRadius ?

[dawn gazelle]

GetRandomPointInNavigableRadius actually calls GetRandomLocationInNavigableRadius. You're actually better off calling GetRandomLocationInNavigableRadius as it is not a pure node meaning that the boolean check can actually be used without messing up the random location.

[maiden wadi]

Also worth noting for this that Point function has been deprecated since 4.22. Likely for this exact reason. They really should do a better job of pointing that out in Blueprint so that people won't use it.

[sage heron]

So, I set up a multi trace box and find the objects that I want to affect (the print node displays all 3 of them on the console). I want to send something to all 3 of them via a Blueprint Interface. However, it works only on one at a time. I use for each and break the array element (hit result) to get each actor's reference (print node uses this as well). Any idea what I might be doing wrong?

[zealous moth]

@sage heron show code?

[sage heron]

it's a watering the plants system

[zealous moth]

uh.... wow where do i begin...

why is it on tick and why is it gated with additional input?

[timber knoll]

the delay is the real issue

it won't create a delay for every element returned

as Zanet mentioned, this also shouldn't be in event tick / gated

instead opt for timers, and do this trace once every x seconds

that way you can just ignore the delay and gate (start timer on pressed, stop timer on released)

[sage heron]

the mechanic behind it is, you pick the hose, you press left click and water them "slowly" (inside a radius)

thx for the feedback

Removed the delay, used timer instead and it works like a charm. 😻

[timber knoll]

good job 😄

[versed zealot]

Is there any gotchya's associated with the looping input on the set timer by event node? I am creating a timer, displaying the value via a widget... the timer gets set to 0 and the set timer by event is still firing every second...

and my looping input just has time > 0

So if I see a 0 I feel like it should stop firing the event

I mean, pausing it works I guess

[sharp rapids]

Can you show your code?

[versed zealot]

So the branch works as expected, using the same boolean as the setTimerByEvent

[sharp rapids]

How are calling the Set Timer node?

[versed zealot]

On Event Construct of the widget

[dawn gazelle]

A widget shouldn't be controlling anything really.... It should only be used to visually display the information of the game.

[versed zealot]

Yeah, I figure it shouldn't be... I was going to ask where this should go... like GameState

But..

[sharp rapids]

If you call Set Timer By Event with looping = true
It will continue looping the timer forever until you specifically tell it to stop

[dawn gazelle]

Correct. You have pause or "clear and invalidate".

[sharp rapids]

The 'Time' value you are seeing is an entirely different variable

It has nothing to do with the Timer

[versed zealot]

Time is the variable I created

My understanding is that the Boolean checks before it fires the event each second and decides to fire or not

So the Boolean is only checked... once?

[sharp rapids]

Yes

If looping = false
The timer will call the event once and then stop

If looping = true
The timer will keep calling the event after every 'Time' seconds indefinitely

Until you tell it to stop

[versed zealot]

Right

Ok cool... for what it's worth I have the pause in there and that gives me the intended result

Thank you guys, I understand now! @sharp rapids @dawn gazelle

[dreamy ice]

I hate the idea, but would spawning actors to handle a status effect's logic be a decent way of doing that?

[brazen merlin]

maybe an actor component base class is better?

[dreamy ice]

the status effects component can't contain another component

[brazen merlin]

status effects are already an actor component?

[dreamy ice]

yeah so they can be added to any actors

[obtuse herald]

UObjects?

[dreamy ice]

but the effects themselves

[brazen merlin]

so wait, why are you spawning something else? wouldnt the logic be within the same thing?

[obtuse herald]

he probably wants different logics for different effects

[brazen merlin]

true? why not utilize class inheritance? you have a parent actor component and then child versions which perform their own methods

[obtuse herald]

I think he has an actor component that handles the effects

[dreamy ice]

i need somewhere to store the effects logic

[obtuse herald]

So every actor with the component can potentially have any effects

[brazen merlin]

ive got something similar, i use actor comps, i use a parent class so casting is just the one, but each child performs its own stuff

[obtuse herald]

via ActorComponts or via UObjects

one of these two

choose

[brazen merlin]

that also allows me to stack those components and look for conflicting matching children

[obtuse herald]

Yeah, it basically boils down to that

[brazen merlin]

just trying to understand the question

[obtuse herald]

If you use ActorComponents or UObjects to handle the logic is not that different in the end

[dreamy ice]

can objects nest other objects inside of them?

[obtuse herald]

I think he tried to attach ActorComponents onto ActorComponents and that doesn't work

[obtuse herald]

you don't need to nest them

[dreamy ice]

i didnt try, because it doesnt work lmao.

[obtuse herald]

just add them to your parent inside your component

[dreamy ice]

alr

[faint pasture]

The end game is probably just raw data like how gas does it, but an actor can work. An actor will be the easiest to prototype and implement, but there are complications with every approach

It all depends. If your status effects are something like "on fire", then that's easily represented just by data. If it's something like, "deal damage to everybody around you and then explode at effect end for X damage", then it gets a lot more complicated.

[dreamy ice]

they're really only like 3 types of effects, but I'm having trouble managing timers. I have an idea though.

[onyx violet]

is there a way to change a custom spectator cameras speed with blueprints? all i see is get max speed from the movement component

or should I just increase the input value?

[gentle urchin]

Change the max speed if ur spectator is a character i suppose

[inner sandal]

Anybody know of the best way to do a telephone cord? I've seen a good tutorial to do with a cable component and material but I have a nice static mesh I'd like to use, I'm having some luck with splines but that's not really reacting in a physics like way.

I doubt it's possible to path deform an SM over the cable component?

[quick lance]

I'm looking to create a charge (as in, moving forward towards something, not powering up) attack and want to have a set distance that the entity goes towards. I want them to have a large speed in the beginning and as they approach the target point, slow down. I don't really want to use Launch Character because i'd have to use tick or something to determine their distance to the target point and then slow their acceleration. I've been messing with Vinterp to Constant but I'm not clear on the Interp Speed value. anyone have any advice?

[gentle urchin]

A tad annoying, vinterp and vinterp constant behave differently in regards to speed

You still need some tick to find the target and keep track of the distance to launch tho, wont you? At least some variation of it

You could do some cubic interpolation. That would slow down as you apprach it

[quick lance]

I want to launch a finite distance every time. Like 800 units. I want to begin slowing down at 400 units from my initial launch. I would like it to take 1 second to arrive. However, I want to be able to JUST modify the finite distance variable and have everything work without having to rewrite it.

I've been messing with a timeline that modifies the interp speed over the time but it's jittery and doesn't really give the feeling of a charge right now

[trim matrix]

What is the difference between viewport and playerscreen? Is the difference meant for split multiplayer or something and identical on a single player game?

[dawn gazelle]

Pretty sure player screen is more to deal with splitscreen multiplayer.

[trim matrix]

Ah okay, yeah that makes sense!

[gentle urchin]

Lerp it?

[short anvil]

Where would I put a global variable like the player's inventory? I don't really want to pollute the player class more than necessary. Should I put it in the level blueprint?

[earnest tangle]

It depends on how you want it to work really

You could put it for example into the player character, game state or player state

it doesn't really make much of a difference unless you have some specific requirements like possessing multiple different characters with their own inventories, or multiplayer support

[short anvil]

No, it's strictly singleplayer. Also I totally forgot that I had my custom GameMode, is that the game state?

[earnest tangle]

no, gamestate is a separate object

[short anvil]

Ah okay, I think I get it now: GameState and PlayerState are members of the GameMode and I can access GameState basically in every blueprint, right?

[gentle urchin]

Inventory could be a component, if you wanna keep them separated and reusable

[earnest tangle]

Yeah having it as a component can be handy

[short anvil]

Hmmm, but then it would be an actorcomponent, right? It really doesn't have to be related to an actor. I just want to use it as a data object and access it to draw the inventory and the items in it, when the player presses a button

my player pawn is just a really dumb actor carrying the camera

[earnest tangle]

well you would most likely want to store the data as part of an actor

GameState is also an actor if you wanted to put it there

[short anvil]

oh that's weird

[earnest tangle]

Not really, there's a few actors which are invisible like it :)

GameMode is also an actor

[short anvil]

So far I thought actors are things you can put in a level

[odd ember]

they are

[short anvil]

also playerstate derives from actor and I don't know why^^

[odd ember]

actors have transforms

[earnest tangle]

It is perhaps a bit peculiar that they have a position and such when they don't really do anything with it, but I guess it's a legacy/convenience choice

[short anvil]

What real advantage do I have by storing my inventory stuff in an ActorComponent instead of the GameState in a singleplayer game?

[gentle urchin]

Reusability

Nothing else afaik

Cluttering gamestate could be considered on the same level as you're doing with the player pawn imo

[earnest tangle]

Yeah, and it's mostly a question of encapsulation. You can keep all your logic relating to inventory in the component, so it's a bit cleaner in terms of the implementation

[gentle urchin]

Plus if your bp gets massive, it can become very slow to compile,

Separating it in components will avoid this afaik

Doesnt get re-compiled along with the owner i think

[short anvil]

wait, I still encapsulate the inventory stuff in a UObject, but just want to put it somewhere, where I can access it

[earnest tangle]

If you put it in a UObject, you would have to create a variable to hold it somewhere, and then create an instance and put it into the variable

[odd ember]

game state

game instance

game mode flushes

[short anvil]

yes, I think that's where I put it

[odd ember]

game state might flush as well

[short anvil]

What do you mean by flush?

[gentle urchin]

Swapped, changed, destroyed

Destroyed and replaced

[odd ember]

stripped of variables

[gentle urchin]

When changing level

[odd ember]

not sure if it actually gets destroyed and remade

[blissful grail]

It does

[earnest tangle]

If you mean when changing level, yeah afaik everything except GameInstance gets effectively reset

[blissful grail]

Game Instance is the only thing that actually persists in a map change.

[earnest tangle]

Subsystems probably persist as well depending on what kind of subsystem it is

[blissful grail]

A subsystem from GameInstance - yes. They operate on the GameInstance lifecycle

[odd ember]

some things should be on the default SeamlessTravelActorList

[blissful grail]

You have to turn on seamless travel.

[earnest tangle]

Yeah isn't seamless travel more like level streaming? Not sure tbh haven't really looked at it

[blissful grail]

By default - GameInstance (and anything attached to its lifecycle) are the only things that persist by default.

[odd ember]

it isn't, seamless implies that you carry stuff over

[short anvil]

Great, then I look a bit in that direction, thank you for your input!

[odd ember]

you're not technically traveling when streaming in levels

[blissful grail]

Seamless travel is still changing the map, but the engine handles recreating everything in the state as before.

Streaming levels, you never "leave" the level really.

[odd ember]

yep

[gentle urchin]

I asume pointers to actors in the previous level is broken when switching

Do they get invalidated/cleared automagically?

If you had them in gameinstance

[odd ember]

on hard reset? I guess they're treated as destroyed

[gentle urchin]

That'd make sense

[eternal drum]

how would i block water from being inside a mesh, like on a boat. currently it just goes through

[odd ember]

probably a topic for #legacy-physics

[blissful grail]

What the seamless travel does is changes the level as expected. So, the actors get destroyed and what not, but their state gets saved temporarily. The next level creates everything again and then assigns the state back to the newly created actors.

[maiden wadi]

Generally there's only three places you should keep an inventory relating to a player. PlayerState, PlayerCharacter, or PlayerController. All of which can be done via an ActorComponent and all of them can be retrieved globally from anywhere the player needs them. The general reasons for the differences in them is...

PlayerController allows no other players to see the inventory, this keeps it private and inherently saves networking for the server.
PlayerState allows you to save items easily persisting death, but still allow other players to see your inventory via the GameState PlayerArray.
PlayerCharacter allows easy use of deathbox style, where death leaves a corpse, and the items need to be retrieved.

The best part about making it a component, is that you can turn around and change gameplay style however you want, or even take the component into another project later if you choose with much less setup beyond some game data and dropping it on an actor class.

[high yew]

how do I get the line trace thing to not lag behind the camera rotation?

[atomic salmon]

I cannot see it sharply but I believe you forgot to add your start point to direction * distance

End = Start + Direction * Distance

[high yew]

one sec i think you shoud see it clearly

[atomic salmon]

I confirm it

End should be World Location + Forward Vector * Distance

Location vectors are different from direction vectors

Both Start and End need to be locations.

[high yew]

what to how do i get forward with location. sorry i am new

ish

[atomic salmon]

Just like I wrote above

[high yew]

so like this

[atomic salmon]

No

Addition goes after the multiplication

You are starting from the same location but projecting at a certain distance from that location in the direction of the forward vector

[high yew]

thanks. it works now.

[atomic salmon]

I would need to draw it but I am on my phone

[bleak hornet]

I did a vaulting bp, but it doesnt vault properly.. how do i see the error screen or debug screen on ue4

[spice lynx]

Think of it like this. Both start and end are two points. The forward vector is a direction. So to get from A to B, you need A as a starting point, then add a direction vector * distance to get to B

[bright harbor]

hey so i was wondering, i have 3d models of clouds, and a shader material to use on them, is there an easy way to automatically dot them around the sky in a certain radius, but not too close to the world itself and rotate the clouds slowly around the center point?

[onyx token]

okay so i have an actor, which is an apple.
And i have a player, which picks up the apple.

That apple has a bunch of variables inside itself, that determine the weight, value, description, name, etc.
And when the player picks it up, all of those variables get transferred into the inventory- because the item "apple" gets added into the inventory item array.

How do i delete the apple from the map, and transfer it to the inventory?

[bright harbor]

you'd take the apple actor from the overlap event in the player, and make sure the apple is in the inventory array

then delete the apple actor

[onyx token]

overlap?

[bright harbor]

how are you detecting when the player picks up the apple?

[onyx token]

Hang on, this is how i add it (After doing some stuff to determine if i already got an apple in the inventory, stack it, etc.)

oh, with a line trace

[bright harbor]

off of that line trace, what you would do is break the out hit, get the actor variable, and save it to a variable, then use a destroy actor node, and connect the variable to it

[onyx token]

yeah i did that

[bright harbor]

it's still not working?