blueprint

[void cobalt]

but that would make the linetrace not come out of the gun

[earnest tangle]

you would use this linetrace to get the point towards which the character should be facing

[void cobalt]

ooo so make another line trace?

[earnest tangle]

yeah

[void cobalt]

ah right that makes sense

[earnest tangle]

I'm not a 100% sure if that'll fix it but worth a try

[void cobalt]

ill see what i can do

thanks 🙂

[void cobalt]

@earnest tangle

so i made another line trace come out of the camera to the location of my pointer

and i set the crosshair worldspace location to where that camera linetrace hits

which should in theory do the trick, but it didnt :/

[earnest tangle]

I think the problem might just be that it's rotating correctly, but the linetrace for the character comes from the head instead of the feet

[void cobalt]

the red rectangle in the screenshot is where the camera linetrace shoots

that might also be the issue

[earnest tangle]

the offset between the rect and the line looks to be roughly the height of the char

you could try linetracing up to the height of the character's head instead of the ground level

[void cobalt]

but if the linetrace shoots from the feet, the visible bullet tracer will also come out of the feet wouldnt it?

i will try changing it so it shoots from the feet instead

[earnest tangle]

you could potentially calculate the aim point like this

pretend the dotted line I drew in that is the line from the camera

you can treat it as a triangle like that

[void cobalt]

how would that work

[earnest tangle]

well, you know the height difference between the character's head and the hit location on the ground level

and you know the angle between the linetrace hit point and the line from the camera

you could use that to calculate the length of "top" part of the triangle

and then you can use pythagoras theorem to calculate the length from the hit point to where the actual aim point should be along the linetraced line

you can then offset the hit point with that and you should get the correct aim point

there might be some vector math way to calculate the same but I don't know it lol

[void cobalt]

damn i was never very good at maths

xd

[earnest tangle]

lol same but you learn when you do gamedev for a while :P

[void cobalt]

true

ill see what i can do with ur info, thanks again

[mortal wharf]

Is it possible to do a save game and load game system in a level blueprint? Since i want it to save everytime i go to the menu.

[wind atlas]

I thought there was some sort of node/feature already available in UE for that sort of aiming?

[earnest tangle]

Not sure about that node thing 🤔

[wind atlas]

sorry maybe ignore what I said haha, I'm a n00b, I just had some vague memory, probably something else

the trig method sounds great.

[earnest tangle]

Yeah I haven't really done this type of aiming so not sure either :)

But hopefully the method I outlined would work

[sour aspen]

Why i can't set my variables referring to my pawn in the construction script of game mode? What is the best way to create refferance for my actors in level

This gets empty result

[tight schooner]

Have you hand-placed placed your "SW pawn circle" actor into the game level?

[sour aspen]

yes

[tight schooner]

I'm not too familiar with getting references on construction, cuz construction can run before stuff is spawned by the game mode etc. so it can be tricky

If you're spawning it with that Spawn Starting Circles function, maybe that function can provide references as a data output

[sour aspen]

I think beginplay is the best option

[tight schooner]

rather than having to do a Get All Actors

Yeah, I tend to acquire references on BeginPlay cuz it's more likely to work

[sour aspen]

Thats another method not related to pawn

Okay then thank you

[tight schooner]

@mortal wharf maybe you can call the save/load functions from the level BP but I wouldn't put the system there... Putting fundamental systems into level BP is bad practice

[keen goblet]

@sour aspen There's always the GetPlayerPawn function if you need it

[sour aspen]

@keen goblet oh that's usefull i don't need that pawn referance anymore

[rough wing]

I'm tryign to get my character to hold on to walls

I attach my character to the wall

But I want gravity and velocity to still apply to the character

So im using a physics constraint

However although my character gets attached, he falls down because i guess the constraint is too loose?

How can i get the constraint to limit my characters location?

[shy lava]

im trying to make a procedural planet sphere and trying to figure out how to loop verticies

so i dont have to manually type them

[stone canopy]

yo! how can i change the content browser view to see a folders tree? thx in advance

[rough wing]

@stone canopy i think ur talking about the thing in this ss

[quartz pawn]

how do I check if something got touched and what touched it

[trim matrix]

Touched like collision or touch input?

[quartz pawn]

collision

oop

found it

"Event Hit"

[trim matrix]

oh nice

[quartz pawn]

;p

[trim matrix]

well

prob event begin overlap

is what you would want i would think

[quartz pawn]

yes

hit is for like a non actor

how would i check if the actor it hits

like check its name

[trim matrix]

pretty sure its for line traces and things. event hit

oh so one simple way is just to cast to the actor

[quartz pawn]

could i use get object name?

[trim matrix]

prob not

[quartz pawn]

so like cast to Main_Character

[trim matrix]

yep

the other actor return of the begin overlap should be the object of the cast

[quartz pawn]

so it aint workin

[trim matrix]

ss the code?

should be pretty simple

[quartz pawn]

it doesn't print

[trim matrix]

oh event actor begin overlap isnt what you would want

you would want to create a collison volume componet

[quartz pawn]

thats the only one i can fnd

ok

[trim matrix]

Then click on that componet and get on componet begin overlap

[quartz pawn]

i have a capsule collision, that works?

[trim matrix]

yea

[trim matrix]

plug in other actor still,

[quartz pawn]

instead of overlapped

[trim matrix]

you also might wanna put your print sting after the cast

yes instead of overlapped componet

[quartz pawn]

i have another in the monster event

[trim matrix]

oh ok

[quartz pawn]

still wont print

[trim matrix]

hm Is this ss from your monster BP?

[quartz pawn]

yup

[trim matrix]

You could maybe check your collision settings on your capsule componet

[quartz pawn]

i did

[trim matrix]

then i couldent tell you what it is D:

[trim matrix]

if overlap wont even print

oh

idk the pawn preset

show me the expanded version of pawn collison preset

I would assume it still would work tho

[trim matrix]

ahh

I mean if you click the little arrow next to the collision preset dropdown

on the left

you can expand it

[trim matrix]

ah yea i couldent tell you without being in unreal looking at it myself then

I cant rn tho

not sure how these things behave of the top of my head

[quartz pawn]

aw shucks

@trim matrix fixed

instead of begin overlap

i did hit

[trim matrix]

well i guess that is what you needed then nice

[gritty elm]

why server can't see client event?, but client can see any client

i already running two custom event, 1 on server, and other on multicast

[quartz pawn]

so i have a variable in my monster that I want to reference in an animation blueprint. how do i go about doing that?

[keen seal]

Hey, I'm trying to get a wave spawning blueprint going, any ideas why I get this error?

https://blueprintue.com/blueprint/8wqfevpz/

[earnest tangle]

That means your spawn ai from class node failed

[ruby oriole]

im really overwhelmed right now. How would you program a stun mechanic or any loss of control into blueprints ?

[earnest tangle]

for AI or for player character?

[quartz pawn]

so i have a variable in my monster that I want to reference in an animation blueprint. how do i go about doing that?
@quartz pawn

[earnest tangle]

use "try get pawn owner", this will give you the pawn that the anim bp is used in, then you can cast it to your monster bp class

[quartz pawn]

i only see set and not get

does this look good?

[keen seal]

That means your spawn ai from class node failed
@earnest tangle Well the enemies spawn in the world as usual

[earnest tangle]

@quartz pawn you probably should do that in the animation update event and save the result to a variable, and use the variable in the transition

@keen seal actually it's possible the issue is caused by your random value from arrey implementation... if you use random integer, you need to do array length - 1

in that case the spawn would only sometimes fail

Either way, the error definitely means that the spawn ai node failed. "accessed None" means the value you were trying to use is None (nullptr), and that would only happen if the spawn ai node failed

[keen seal]

Hmm

[quartz pawn]

and then my animation blueprint wont apply to my character

just a t posing monster

[gritty elm]

does local player mean only server player?

[maiden wadi]

@gritty elm Local player means local player. You can have many if you're doing a split screen, but usually this refers to the player on the local machine. This cannot be on a dedicated server, however there is also a local player on a listenserver setup.

[gritty elm]

can you please help @maiden wadi

[quartz pawn]

my animation wont work with my ai and i dont know why

[gritty elm]

the player hud variable return null if i try to play two players in multiplayer mode @maiden wadi

i mean for server player, it initialize, and for client, it return null, why?

[maiden wadi]

@gritty elm Dunno. Depends on where you're calling that event.

[gritty elm]

i call on begin play on character

[maiden wadi]

Then it should run once per character per machine. So with two players, it should run four times, twice on each machine, depending on how you're calling it. Are you RPCing, do you have it behind a SwitchHasAuthority, or?

[gritty elm]

i run like this

[frail swift]

Need help, Im creating a 3d card and want to apply a 2d texture I have to It Is there a way I can do that, like a but it doesn’t always face the camera

[maiden wadi]

@gritty elm The event. Is it called after an RPC or behind a SwitchHasAuthority?

[gritty elm]

what mean by rpc

[maiden wadi]

Remote Procedure Call.

[quartz pawn]

my animation wont work with my ai and i dont know why

[maiden wadi]

Or Event ran on another machine.

[gritty elm]

what mean remote procedure call exact, any example for better understand

[maiden wadi]

Server, or Multicast events are RPCs.

I'd strongly recommend reading up on RPCs and Variable Replication if you're going to be doing anything multiplayer.

@quartz pawn AnimBlueprint?

[quartz pawn]

yes

[maiden wadi]

Going to need to see how you have the animation states set up and how you're polling for the data needed to make it run.

[quartz pawn]

its linked with the character

[maiden wadi]

I don't know what you mean by that. Do you have an EventBlueprintUpdateAnimation event?

[quartz pawn]

il show u the event graph

[glacial sentinel]

$5 to whoever can help me understand how to control child actors variables nested in another blueprint, and have it work in editor and in play mode, so far i only have it working in play mode. it does not work in editor

[still bramble]

uh

what

[pine trellis]

This is the blueprint of my parent weapon, I can cloak it with this code, but if a weapon has more elements then it wont cloak all of them, how can I cloak all the weapon materials ?

[quartz pawn]

my animation wont work with my ai and i dont know why
@quartz pawn

[karmic zealot]

@pine trellis GetMaterials + ForEach

[pine trellis]

does this look right ? @karmic zealot

[karmic zealot]

@pine trellis why don't you tell me?

Test it

@glacial sentinel that looks right, I don't understand what "Play Mode" is, I mean, I assume that's PIE, but you say it's working in editor but not play mode, so I'm a little confused. Or actually, you recant that it works in editor. So that's confusing as well

So, does it "Play mode" mean PIE?

But what's "editor" then?

[glacial sentinel]

like not in play mode

[karmic zealot]

@quartz pawn
@quartz pawn you quoting yourself doesn't really help.. also, I guess a quote of a quote takes out the OG quote. But "this doesn't work" without further explanation, screenshots, what you've tried (basically bare minimum context) isn't going to make anyone help you

like not in play mode
@glacial sentinel this doesn't help me

Just use the correct term in the editor

You mean ?

You got me for another 5 mins

[glacial sentinel]

@karmic zealot like it it's like this
just not in play mode

[karmic zealot]

Then back to work for me

Brah

That's Simulate

I just literally asked you to be specific

[glacial sentinel]

but in this mode when it's simulating it works

[karmic zealot]

Look at the icons

Okay, so we got terms now

So in "Simulate" it works, but "PIE" it doesn't?

[glacial sentinel]

what's the mode called if you do nothing? pie?

[karmic zealot]

Well, no

You switched it

So now it's Simulate

Look at the icon

Just do the arrow drop down

and do whatever you want

Doesn't matter

you have 3 mins

[glacial sentinel]

the child blueprint, if I change it's values while it's not in simulate, they work

when i change those values, when the child blueprint is nested, they only work when I'm simulating

[karmic zealot]

How are you changing those values during runtime?

[karmic zealot]

K

[glacial sentinel]

for the blueprint being nested, in simulate mode or not, I can see changes

[karmic zealot]

So, since there's only 1 min left

[glacial sentinel]

but when it's actually in another blueprint, it onbly works in simulate mode

[karmic zealot]

Simulate's reason is so you can do that and test values

PIE is basically like how it will be like when you package the game

With PIE, you need to actually do logic to change things in realtime

[glacial sentinel]

I'm not working on a game though, I do cinematics for offline renders

[karmic zealot]

Good luck, I just answered your question, now you need to figure out what you really want to do.

[glacial sentinel]

okay, thanks for the tip

[supple dome]

@glacial sentinel you cant change child actor properties in editor

because its only saved as a template, which is used when spawning in pie

at least i havent got luck with that

child actors are really really hacky, id suggest avoiding if you have another option

[glacial sentinel]

is there other ways to nest a bunch of objects together like a unity prefab?

I thought people make procedural building things with blueprints, I always thought maybe some were built with nested blueprints

[supple dome]

yep but its mostly using components

actors within actors or components within components are possible but theres less support for it

[glacial sentinel]

hmm I see, well if i find a solution I'll post it here

[supple dome]

if you wish to have unity like behavior by grouping actors theres a free plugin on the marketplace

[ashen sparrow]

So I was gifted a copy of Low Poly FPS... it’s really nice! The models and animations are awesome... But... the blueprints. You can clearly tell that this guy is a Unity user. So.. I deleted all of them today and I am going to build them from scratch.

This package costs about $160.. should I send him my BPs when I’m done and tell him to release a update, or is that considered bad manners? 😅

[twilit heath]

i have no problem calling bad code bad code 😄

[ashen sparrow]

I thinking of adding network support also... just for the hell of it..

[twilit heath]

with blueprints? yikes

[proven mason]

Hey I'm trying to incorporate dodge movements using analog buttons/stick

[ashen sparrow]

with blueprints? yikes
@twilit heath Yeah.. just to make shooting, receiving and give damage tho... nothing fancy.

[proven mason]

I managed to do a quick dash but I am unable to do a quick step.

so my idea is when I quickly tilt the stick to a scale of 1 or -1 the character does a quick startup.

after tilting towards the max. if I hold the accleration would blend into a sprint (I tend to call that a dash).

so say if I hold at a scale of 1 or -1 for 0.1 seconds the character's accleration would blend into sprint.

If I release the stick back to scale 0 and the hold time is less than 0.1 seconds then my character does a quick step.

So far I seem to have the Accelerate into Sprint done properly when I tap my stick quickly towards the scale of 1.

but so far when I release the stick or analog button it doesn't print out the word "step"

if you look at the yellow arrows when I slightly lift an analog button from being pressed the yellow arrows show briefly then dissappear.

I haven't fully released the analog button/stick back to scale of 0 as of yet.

and even if I did it doesn't even touch the "Clear" node.

So if anyone could point out something that would be nice.

[icy cliff]

I can't move W/A/S/D?

[proven mason]

Go to the Minimal_Default tab

then go to edit -> project settings -> Input

Inside Axis Mappings make sure you have W and S keys for MoveForward and A and D keys for MoveRight

[icy cliff]

Okie dokie thanks

[proven mason]

Now onto my problem

[rough wing]

Hello, I'm having a problem

I'm adding in new static meshes via blueprint to my actor

And im attaching physics thrusters to them

but the thruster isnt working

print is working

[proven mason]

also if you guys are curious what's inside the Analog Direction Macro Function I've created it's this

[vestal plinth]

my game instance is set in project settings, but on my menu map it can't cast to the right type. this is really confusing.

when I do that, it's failing in the menu map, but not the game map

can game instance class be set anywhere else?

this is on android by the way. it works during PIE

[edgy glen]

Sorry for a little off topic, but how do you get your node connectors to look like that? it's so much nicer!

[tired heart]

how to not loop a flipbook animation

[orchid thicket]

is it possible I can smooth out pjhysics through blueprints

or coding

[late shuttle]

"smooth out" = ?

[shut hinge]

how do you play an anim of another mesh when stepping into on overlap trigger? I couldn't get the animation to override the one that's playing (looping) in animation bp.

I simply want to walk into an on overlap event trigger with the person sleeping and then play the animation for the person to get up once I step into the trigger.

[vestal plinth]

is this a good way to pre-load a level? something is hitching my new map really bad even after doing this, for a good 100 frames

[orchid thicket]

@late shuttle like have it run a little faster like is it possible I can make the physics run like gmod quick and smooth

Because I am trying to work with someone on a game where physics would be a big thing

And I wanna make it so the physics run so well that I will practically play with it everyday

I got to sleep so respond if u do and tag me

I'll view it tmr

[shut hinge]

what is the correct way to wire this counter up? As its not adding the score up properly.

[orchid thicket]

It does say play souns

Sound

Nvm

Maybe cause u picked random integer

[shut hinge]

It totals the score up but it sometimes subtracts from the score also from the total a few digits which is weird..

[tight schooner]

does "Big Gems" ever go negative?

[orchid thicket]

Nvm I'm dumb

[shut hinge]

Hmmm, Does Random Integer need a clamp to stop it going below 0? I thought is supposed to add it.

[tight schooner]

I mean, you could clamp (or "max" node) Big Gems to 0 minimum

and then Random Integer in Range won't produce negatives

but just looking at your screenshot, that's all that comes to mind as an explanation for why Gems can get subtracted from

is if "Big Gems" is providing a negative number

[shut hinge]

the gem collection thing is being run off an Event Dispatcher. i would like to know how to get it to work for all my pawns and not just only for my commanding pawn.

[tight schooner]

Is it doing some Get Player Pawn type thing? For a collectible powerup, you want to establish some communication between the pick-up-er and the pick-up-ee (lol)

[shut hinge]

At the moment the Gem Collection Code is in the Commander's BP. (The Parent BP) of all the pawns. But the Commander's parent is Third Person Char.

[tight schooner]

so are the pawns you want to have this functionality all children of the "Commander" BP?

[shut hinge]

yes they are all children of the commander's bp

[tight schooner]

I mean if the parent has a function that allows it to pick up a gem or w/e, then the children have that function too. The gem can cast to the parent class, even for its children, and call functions on the parent class

and the children will handle it

and thus the parent class acts as an "interface" to all the child classes

[shut hinge]

The other issue I had, I got the pawns posessing and resuming back the control after possesson, but the commander dosen't resume back control unless I manually posesss him again but the children are working. But This stops them from using the dialog system, so only the commander can use it, if the children try to use it, I get a none access error off the Ai Controller.

[tight schooner]

sorry, I don't have experience with those systems (possession & AI) 😦

looking at your screenshot though, something else came to mind

you have a data wire coming off of the "+" node, reaching to something beyond the Set Gems node

if it's (e.g.) going to a print node, it'll print an incorrect value

because it re-evaluates all those nodes and produces a new number with the current "Gems" value, after it's been set

[shut hinge]

that's wire's is calling the event dispatcher for the gems..

[tight schooner]

so the whole algorithm happens again. It produces a new random number and applies that to the new Gems value...

"pure functions" are deceptive like that

every executable node you connect a "random" to gets a totally different random number

it's a classic Blueprint gotcha

[shut hinge]

I don't know how to use the main parent BP as an interface for the children, II may to put the same gem code in the commander in one of the children to see if it works for the child.

I do know the parent can override the children and stop the children from updating their values.

causes alot of problems.

[tight schooner]

For example... If you have a function in Commander called "CollectGems", and then CommanderChild walks over to a Gem, the Gem can like... get the overlapped actor, cast to Commander class (not CommanderChild), call CollectGems, and the child will just do it

In the CommanderChild BP, you can override the function so it does something different

but otherwise it'll just do what the parent does

[shut hinge]

i thought so to but when i possess one of the children, the gems collect but the counter don't update. But when I return back to my commander, the Counter Updates.

[tight schooner]

yeah... I can only speak in general terms. I can't really debug it by description

Advanced users will set up parent classes with lots of common functions, even if those functions don't do anything. And then the children override those functions and actually do stuff. That's what using the parent as an "interface" to the children means.

Everything casts to the parent and not the children

[shut hinge]

I had quite a few little issues going on, the third issue, I had trouble with for nearly two years is the Levelling XP System the progress bars only work for just one party member at a time so when you switch the pawns the XP Counter and Progress bar only updates on the screen for just the pawn that you control, and dosen't show up for the other pawns until you take control of them. So you can't have all party status showing on the screen all at once like in Group Party Mode.., I don't know how you get this to work to display all the stats for all your party members. So you can have a group party selection screen like Final Fantasy.>. I will show you the result of what happens in game when it works for just one party member, i'll get a screen shot to show the issue.

[tight schooner]

I guess you need some manager BP to collect all those stats in a common place so that the UI can easily acquire them

[shut hinge]

So as you possess Skynar, his XP bar and stats all light up show up, but all the other party members stats are not even showing.

[tight schooner]

yeah, I'm guessing the UI is spawned by your possessed pawn and only knows how to get those local stats

[shut hinge]

so as you possess each one, you get the same result, only the pawn you control is active, the other pawns are inactive. So this is quiet a conundrum that is beyond my current knolwedge. That's why I been stuck on it for over two years.

Yes, and I don't know how you get around that. The Widgets need to update for all pawns, not just the controlling pawn.

[tight schooner]

that's a lot of time to be stuck on a problem. I can't specifically debug it by description, but like I said, you'd need some manager BP that the widget can easily talk to and acquire the complete stats. Unreal Engine provides some generic manager classes that you can use, like GameState or (if you need it to persist across level loads) GameInstance

and Epic imagined one could house that type of data there

and then the widget can use the readymade nodes, GetGameState (or GetGameInstance)

cast to your subclass, and then get the data from it

[shut hinge]

I was stuck on that problem for two years because Laley didn't release a video to show us how to set it up his xp system for Group Party Modes. So his system works for single player Screens.

So as long as you have one player's stats on the screen it will work, but ifyou have three or more players on the screen, or have a game that involves group combat like Final Fantasy, you run into these limitations with his system.

[tight schooner]

Yeah. I can only suggest things in the abstract

IDK about Laley's system or your game in detail

[shut hinge]

understandable. My game has 10 party pawns in it. Its a rpg sci fi Single Player Party Group System with dialog.

[tight schooner]

Collecting those stats into GameState or w/e and having your widget read the data from it to update the UI would be a normal way to approach it

[shut hinge]

I don

The Player XP stats are stored it in the Levelling Component that you attach to the player..

there's about 8 variables for the XP system.

Sorry six Variables, they are for my player Nella:
Nella Current Level,
Nella Level Cap,
Nella Current XP,
Nella Current Map XP,
Nella Current Percentage, and
Nella Buffer XP.

so each party member has these stats stored in a levelling component.

But I think they wil probably only work for one map instead of across all maps.

[tight schooner]

I suppose another way to approach it, if you have all these actors in the world and have the stats stored inside of a LevelingComponent on each, is your widget needs to...

1. Get a list of references to all the members of the party
2. Have a function in the parent class of all those characters that can acquire those stats from their own LevelingComponents and return it as a data output
3. The widget needs to cast to the parent class and run this function on each party member
4. Apply the newly acquired data to the UI

yeah, if you load a new map, it'll probably erase everything

[shut hinge]

unless you pass them from the levelling component also into the gamestate and update the variables. Because its already stored in the levelling component of each party member..

[tight schooner]

so you need a way to store all the party stats into a persistent thing. Like a savegame file, or a GameInstance subclass (because GameInstance can persist across level loads)

[shut hinge]

i will be uploading a video soon on you tube with blackhell, which is the latest map that I been working on.

the inventory system works with the pawns when I unpossess from the commander. so they can use the inventory. So I have to try to get the dialog system to also work with them.

[twilit heath]

@tight schooner @shut hinge its far more efficient to push a LevelingComponent reference directly into the widget as its created

saves you couple of levels of indirection, and its easier to update the widget later

[tight schooner]

true

[shut hinge]

what are you going on about? using the levelling component?

[twilit heath]

whatever creates the UI that show the XP... etc.

[shut hinge]

yes the xpbar and level uses the levelling component to pass the values to the widget.

[twilit heath]

grabs the relevant leveling component and pushes it into the widget (expose on spawn)

passing values to the widget directly is suicide

[shut hinge]

the problem is when you possess another pawn the widgets don't update for them, only updates for the pawn you posess.

[twilit heath]

UI on average gets 10 or so iterations before it can be called complete, and if you have to alter your game code to alter the UI, you will regret it

see: Separation of Concerns

[shut hinge]

Layley didn't show us how to set it up for other pawns, I only know how to set it up for single pawns for their individual stats.

so i only know as much about it as he is willing to show us. Otherwise I don't know anything more. That's why i couldn't get the system completed properly.

[twilit heath]

you do need to understand what you're doing instead of doing a jigsaw puzzle of code collected from tutorials and other places

[shut hinge]

for the XP to work for all the pawns. I have no other choice. The world is running out of time, so I have to put together what I can...

[twilit heath]

as your game progresses, your needs become more and more specialized to the game, and you're less and less likely to find a code that will work

[shut hinge]

everything is going wrong now all around the planet. That's why I been rushing to put my game together.

[twilit heath]

for that widget you screened above to work

you need

A - a function that returns all the PartyPawns

B - a separate widget for each row (one for each PartyPawn)

C - your parent widget (one holding all the rows in vertical box) does ForEach PartyPawn ->GetLevelingComponent -> CreateWidget<PartyPawnRow> (which has a LevelingComponent variable exposed on spawn)

[shut hinge]

Yes I have a separate widget for each party pawn. But shouldn't I put those widgets inside of a scroll box, at the moment they are just put straight on the canvas.

[twilit heath]

you still need a vertical box or something similar

scrollbox is there only to provide scrolling options when the vertical box doesn't fit

now you have 10 PartyPawnRow widgets, and each widget has a reference to the leveling component

in your LevelingComponent you setup event dispatchers that get called whenever XP/anything else relevant changes changes

your PartyRow widgets initialize from the LevelingComponent data, bind to its event dispatchers and handle them by updating themselves

and thats it

[shut hinge]

the Levelling component is for each separate member. i couldn't put all the party stats in just the one component because it would cause them to use all the same values.

[twilit heath]

yes

its accounted for in what i just wrote

[shut hinge]

so I have 10 party members with 10 levelling components for each one with their individual stats in them.

[twilit heath]

and you have Party widget that has a vertical box and inside the vertical box it adds 10 PartyRowWidgets, each holding a reference to one of the Pawn's LevelingComponents

so each row widget has access to different stats (one for each pawn)

and can display them properly

[shut hinge]

ok, when i put the levelling components on all the pawns, the xp bars on the others all shut off until I possess the pawn and then it turns on.

[twilit heath]

that i wouldn't know anything about, your UI is wired wrong

[shut hinge]

for that pawn I possess. the others won't turn on unti I switch over to them.

[twilit heath]

that would probably be because possessed pawn updates the widget directly

nothing in your game should ever update the widgets directly

[shut hinge]

right, but I'm also using player character

[twilit heath]

widgets should hold a reference to the object they are displaying

and update themselves

[shut hinge]

so for each party member I did reference their levelling component.

[shut hinge]

i had to sign into the new machine so I can access the ui xp bar code.

here's how I had wired up the commander's Widget level counter

His Current XP Stat UI Wiring

His Max XP UI Wiring

His Buffer Bar XP Ui

The Construct UI Code:

Display UI on screen

[vast lion]

Any way to take certain meshes or actors in a level and turn them into one actor?

[rough wing]

Attach them

[gilded cove]

Is there a reason that if you take a Static Mesh object, apply all textures etc, and Migrate it to a project VERSUS Taking that exact Static Mesh and creating a Blueprint from it then Migrating the BLUEPRINT -> The Normal Static Mesh migration does NOT include the textures, whereas the Blueprint Migration DOES?

[cosmic lagoon]

guys im stumped on this one, in a 2 player multiplayer environment I assume player index 1 to refer to the client, yet Get Player camera Manager with the input index 1 returns nothing. What is happening is the client is also using player 0 (server) camera manager leading to weird behavior.

[boreal ether]

@cosmic lagoon I think Player camera manager isn't replicated so it only exists on local clients. So you need to use index 0, but run it on the client

[maiden wadi]

@cosmic lagoon It's not weird behavior. A lot of things only exist on each machine an are not replicated. Stuff like the camera manager and HUD are a couple of those things. Stuff like landscape usually, or the static mesh rock you dropped into the level before playing. These all only exist on each machine and have no interconnectivity between client and server unless you replicate them(which usually you should not). The only reason you should have two camera managers on a machine is if it's split screen. Therefore on each machine you should be using GetPlayerCameraManager0. On clients asking for CameraManager 1 will always return null because there's only one player controller on the clients. GetPlayerCameraManager does exactly what the bottom two nodes here do.

[tiny meteor]

how can I make a dropdown list of selectable variables in a blueprints default section?

do I need to make my own enum or what?

I have an array of materials and want to show them as a dropdown list in the bp

[vast lion]

How would I calculate camera distance to fit an object perfectly on the screen

[earnest tangle]

see here https://forums.unrealengine.com/development-discussion/vr-ar-development/1579732-how-to-measure-frustum-at-a-given-distance-from-camera

the example there is using C++, but maybe you can reimplement it in BP's

[vast lion]

So you'd use something like GetDistanceByFrustumWidth() where the FrustumWidth is the FOV?

[earnest tangle]

Something I did in my game was using scaling of the object

you can get actor bounds, then frustum size at a certain distance, then you can scale the actor so it fits within those dimensions

[mortal wharf]

https://gyazo.com/ae2c2c6615ab0ac8f2058e7e695bfff9 Does this look like a good save and load system? The only thing is that when i try to compile i get this warning: https://gyazo.com/dd6e1571e0e7a3a8f5c54d67ce416d7c

[earnest tangle]

Did you read the error message? :P

Or the warning, rather

[mortal wharf]

Yeah but i don't know how i would fix it.

[earnest tangle]

Yeah, so your warning basically means that the cast to node will always fail... which kind of means that the system is never going to work

[mortal wharf]

This is in the level blueprint and i cast to the game instance cause it is there my isnight1complete var is.

[earnest tangle]

You would have to create a separate object type to store it

basically it needs to work like this: You have MySaveGameObject (or whatever you want to call it), and you add a variable into that object for IsNight1Complete

then, when you save your game, you need to copy that value from the game instance into the save game object, and save it

similarly when you load, you copy the value from the loaded save game object into your game instance

[shrewd condor]

guys, is there any way to access the insides of assets through utility widget?

[earnest tangle]

it kinda depends what you're trying to access

you can access most data, even if it isn't exposed in the editor, but you may have to create some custom structs that match how the data is represented internally

[shrewd condor]

but how would I go about that ? I use async load asset or load asset, but I cant cast it to the object type I need

they also commonly just return none...

I mean, I can get the object reference, but I can't do much with it

cast just fails...

[earnest tangle]

What kind of asset is it and what are you trying to cast it to?

[shrewd condor]

well, the asset itself is blueprint class and I am trying to cast it to blueprint class (that is the same asset)

so I need to load the asset, iterate over its components, get all the required data and make some changes in referenced data tables.

[earnest tangle]

Are you casting it to MyBp or MyBp Class?

[shrewd condor]

MyBp

[earnest tangle]

Try casting to the class

the "plain" MyBp is an instance, assets aren't instances

[shrewd condor]

ok, so I need to async load class in order to do that

ok

ok, so that is working

how do I iterate over its components though ?

[earnest tangle]

That is a very good question :)

[shrewd condor]

yes indeed

[earnest tangle]

Try seeing if there's a get components on the class? Not sure if there would be tbh, but might as well check

[shrewd condor]

nope, but could I theoretically instantiate it as an object without starting the game ?

[earnest tangle]

That might work

You might need to manually destroy the instance after

[shrewd condor]

right, I wonder how I would actually instantiate an object without the game running

[earnest tangle]

try using spawn actor from class :)

[shrewd condor]

let us see

nope, it does not spawn

[earnest tangle]

hmm, I wonder if you could use construct object to do it then?

[shrewd condor]

the question is which object should be outer for it

[shrewd condor]

so now the issue is that Construct objects of class does not accept my class, it says that it Cannot construct objects of type 'yada yada' in Construct objects from class

[earnest tangle]

maybe try asking on #editor-scripting , they might know better about this sorta stuff

I was generating some spritesheets in an utility but yeah that didn't really involve spawning actors 🤔

[shrewd condor]

okay, thank you very much !

[bright frigate]

Hey guys I haven't started even trying to do this yet but just thought I ask here first. Can I change the whole player orientation for a given part of a scene? So like when you fall into that area gravity is opposit and everything is opposite....so like if you were to dig through the earth from usa to china/Asia in a video game.

[earnest tangle]

you can, there's a handy plugin in the marketplace called directional gravity or something like that which has some things that can help

[bright frigate]

@earnest tangle thanks man! its a free plugin 😄

[earnest tangle]

yeah, you can do it without that too, but the default character and some other things don't really like it much if you flip them upside down so it requires some custom stuff to handle inputs

[fervent trellis]

I am currently doing a isometric game that has a grid building. I want to have the fences dynamically rotate so they properly attach to each other. I've been stuck on this one for two days so far and anytime I try to look up online about this I only ever produce results about in editor snapping, or vertex snapping and grid snapping. I was attempting to create a solution where my fence actor had 4 collision boxes that reached out in x+/- y+/- so that if in the grid there was another fence it could see it. I have been having a lot of difficulty actualizing the fences rotating. Anyone have suggestions, or know of good material to reference?

[icy saddle]

I know I can constrain my character's movement to a plane by using Set Plane Constraint Normal .
Is there a way to constrain my character's movement to just a single direction?
For example, only allow it to move in the direction of the vector (1,1,0)

[earnest tangle]

You would have to add your own logic for it

[trim matrix]

Guys should gun be an actor or an actor component?

[rough wing]

How do i get rid of this thing?

[weary jackal]

Guys should gun be an actor or an actor component?
@trim matrix actor for a base gun class

You can make different child actors from that as different types of guns

[trim matrix]

Yea ik oops concepts very well and ue4 is not the same as unity. Attaching it to a socket under player mesh is not helping

Ig an actor component with a static/skeleton mesh is the way but idk why Ue4 wont let me set the type of static mesh in the editor

[gusty mango]

Anyone know why this isn't working? Just trying to toggle a boolean when the character is within a box collision and every time the player enters it triggers both the begin and end

[lone tide]

Use a breakpoint or print to see if it gets triggered

If it doesn't get triggered

Check collision channels

[gusty mango]

the begin and end overlap are being triggered at the same time

[lone tide]

Does the InBounds cause the object to change in a way

that ends the overlap

[gusty mango]

and my box collision is set to only overlap pawn so I can't figure it out

[proud fog]

this is kinda blueprint but how do you smoothly go from one to the other without it going straight to it?

[weary jackal]

Ig an actor component with a static/skeleton mesh is the way but idk why Ue4 wont let me set the type of static mesh in the editor
@trim matrix no make an actor of gun with having a static /skeletal mesh of gun, a structure of a guns basic requirement like range, current ammo, maxAmmo, clipsize etx. Make a single fire function in your parent gun class actor. You can override that fire to automatic fire for assault rifles. So that it calls the fire event with timer. I've did this with my project and it's working absolutely great

[gusty mango]

nope, its just a box collision, doesn't do anything yet other than hopefully toggle a boolean but it has no graph itself

[weary jackal]

this is kinda blueprint but how do you smoothly go from one to the other without it going straight to it?
@proud fog there's timeline to go smoothly. Also there's a node finterpto

[proud fog]

any video tutorials that are good at it?

[lone tide]

nope, its just a box collision, doesn't do anything yet other than hopefully toggle a boolean but it has no graph itself
@gusty mango
Are you using the 4.26 preview?

[trim matrix]

@weary jackal may i dm you?

[gusty mango]

@lone tide no, I'm on 4.25.3

It's so weird I can't figure out why its triggering begin and end. When the player exits the volume it only triggers the exit but on begin overlap it keeps triggering both

[weary jackal]

Sure

[lone tide]

Can you send another print screen with the code you're using to test it?

[orchid thicket]

how can I up the physics in ue4 without creating a new project

like i found out there are plugins that make physics alot better

but how i do that

with blueprints if its possible

[gusty mango]

@lone tide sure, what exactly do you need to see? All I have is this blueprint and the character

[lone tide]

I just wanna see how you're testing to know when it enters and leaves

It just seems weird so far

I've never experienced any problem with begin and end overlap before

[gusty mango]

me either, but I'm really new to unreal but its not making sense why it would trigger both enter and exit at the same time. I double checked my first person character to make sure nothing else was set to generate overlap events even

[lone tide]

you tried just putting down a print statement

inside the begin and end

and printing out the other actor?

[gusty mango]

Not yet, I can though. Just add a print node you mean?

[lone tide]

Yeah

[gusty mango]

Yeah its firing off like 20 times between enter/exit

but only when the player enters the overlap

on exit it just shows it once like it should

[lone tide]

And you're printing other actor

and it's the same actor?

[gusty mango]

not sure what you're asking. What do you mean printing other actor?

sorry I'm new

[gusty mango]

I just replaced the set boolean node with two different print string nodes. is there one for printing actors?

[lone tide]

Something like that

No stress at all man

[gusty mango]

ahh ok, let me set that up real quick

ok this is even stranger

its literally printing FirstPersonCharacter like 20 times

[lone tide]

Does it have any numbers after it?

[gusty mango]

no

[lone tide]

huh

[gusty mango]

thats what happens when the player enters, but on exit it just displays once (like it should)

[orchid thicket]

that might mean u did something wrong

where it spawns multiple people

not one

[gusty mango]

I'm not spawning anything though

[orchid thicket]

or it mightve malfunctioned and just repeated the message

[lone tide]

FirstPersonCharacter should be unique

a second one should be FirstPersonCharacter2

I'm pretty sure

[gusty mango]

I'm going to make a new default project and set this up again and see if its still happening. I really hope I didn't mess something up with my first person character blueprint because I don't even know what would be causing it to do that

[lone tide]

It could be caused by multiple components on the character maybe

But you said that you disabled generate overlap events on all the components on the first person character right?

[gusty mango]

@lone tide yeah thats the first thing I checked, every component in my first person character I disabled the generate overlap events for

because I had run into a similar issue before with a collision box but that had fixed it

[lone tide]

Put in the append

So you can see if it's entering and exiting

and also append

other comp

and

overlapped component

So you get all the details from what's going on

[gusty mango]

thanks I'll try that, yeah I set up a new project with the same blueprint and its not happening so it looks like something in my first person character is messing with it so I'll have to dig around, but Ill see if that append helps me locate what

I'm not sure I understand this append node, what should I be hooking into B?

[lone tide]

Something like that

Should probably add a pin between c and d

[gusty mango]

@lone tide so I think I got it working now, and its the stupidest thing

[lone tide]

and put a space in there to separate them

@lone tide so I think I got it working now, and its the stupidest thing
@gusty mango
hahah It always is

[gusty mango]

I had the collision box set on a stair brush, and for some reason when walking up the steps it was triggering a bunch

because I changed NOTHING and moved the box onto the floor just to make it quicker to test and immediately no issues

[lone tide]

Fair enough

[gusty mango]

so now I'm wondering what the linear stair brush does that is causing that? does it actually move the player up the steps causing it to trigger the overlap again and again? so strange!

[lone tide]

It's possible that when the engine does multiple traces to detect stairs

it moves the character in and out of the overlap

But

That's just a guess

[gusty mango]

yeah it does something wacky, thats for sure

I just replaced the stairs with a ramp for the time being and yeah it works perfectly

just how I had it originally haha

honestly I'm just glad to know it wasn't something I did, but also frustrating that a stupid stair brush caused such a crazy issue

but hey thanks @lone tide for sticking with me and helping me troubleshoot!

[lone tide]

No worries at all man

[trim matrix]

hey guys

I have a tricky situation

would love to take some thoughts

so I have a Spawner actor which has a box

I randomly rain down sphere traces down

if it doesnt hit anything but the landscape to spawn

it spawns to the origin

and if it spawns I re call it with a little bit of delay thats controlled with spawn rate

however

if the trace hits another spawned resource

or any building etc.

it instantly gets recalled

that way I can fill the area with resources with given gaps

however after the area gets full

it gets into an infinite loop

any idea how can I prevent it, maybe by knowing the density ?

I can calculate the available positions and divide the area to a grid

it would help with that since I would know if spots are full

[twilit heath]

if you have no good position

[trim matrix]

but that makes it look unnatural

[twilit heath]

breaj out of the loop

*break

[trim matrix]

how many times would be enough tho ?

if lets say

it has the ability to take 100

[twilit heath]

well

[trim matrix]

and its 70

it would take a bit to find a spot

[twilit heath]

uh, that way....

[trim matrix]

how can I know for certain

that however I random it

it is already full

and since the resources are spawned randomly

if it has the ability to take 100 in

it wont since it would be scattered randomly

[twilit heath]

you don't have to full random it, you can have a predefined grid you trace down with

[trim matrix]

yeah

but that makes it look unnatural

[twilit heath]

you put good traces in array

[trim matrix]

since they would line up

[twilit heath]

depends on the grid

and you can also randomize after a trace

a little

[dense mica]

wouldnt nav mesh be helpful?

[twilit heath]

you said you were thrown sphere traces @trim matrix

if the radius of the sphere is greater then the size of the resource

you can randomize location by the difference

after tracing from the grid

[trim matrix]

hmm

[twilit heath]

hell, you can randomize by the sphere radius really

[trim matrix]

what if

instead of tracing one at a time

I trace lets say

50 or 10 ish

and 5 tries

if it doesnt find any

I can break

its kind of brute force

but it lowers the chances of not finding

and it would save me from creating a grid

[twilit heath]

creating a grid is easy

i mean it can be irregular, or just iamginary math

a vector array with MakeEditWidget ticked

[trim matrix]

but grid is not gonna be really helpful

because

I might have multiple different resource spawners

in the same area

lets say tree and rocks

[twilit heath]

so

[trim matrix]

they have different managers

[twilit heath]

you first make a pool of available spots

then you spawn N resources

as long as N is clamped to number of points

[trim matrix]

hm

so what you saying is

I first find the available spots

even if its empty

without spawning

create this and keep going from there

[twilit heath]

pretty much, easier to control

and barring any occupied hits

you throw only 1 trace per spawned item that way

[trim matrix]

but to find the available spots

how do i go about that

how would I know it found all of them

it goes to the same question

[twilit heath]

thats where the grid comes into play

if its a box you are using

you get its center and extents

you arbitrarily decide a distance interval

you generate points inside a double for loop

toss them into an array

[trim matrix]

hmm

so

instead of randoming

I spawn one

and try to find the next spot according to that one

[twilit heath]

if your array is 40 points

and you need to spawn 5

you pick 5 points from array at random, trace, remove the point

[trim matrix]

okay I think I got it

[twilit heath]

you can apply some position noise as well there

so they don't align

and yeah, instead of random point in box, you use random point on generated grid, and apply some noise to it

effect is the same, but its far easier on the CPU

hint: you can use EQS query for that @trim matrix

it will save you a whole lot of trouble, this algorithm is mighty ugly to make in BP

[trim matrix]

alright will give it a go

[fossil thistle]

Looking to create an item that when thrown at an enemy, freezes that enemy for a set amount of time. Kind of lost on how to start, can anyone help?

[maiden wadi]

I would probably start with creating an object you can throw at an enemy.

Then when it hits, disable their movement and do your freezing effects. Just as you described.

[fossil thistle]

Im currently looking at it from the viewpoint that im putting the code in the item BP. So that when that item registers its hit the enemy character it freezes the character. Would you say that is the correct implementation or would you work from if the enemy character is hit by the item?

[dense mica]

Create an actor -> add projectile movement -> spawn it -> add "event hit" to actor and when it hits disable movement & freeze animation if you can because freezing animation is kinda hard work you can find tutorials on yt about this

adding the hit event to actor is better dont add it to character

also you can use "apply damage" event instead of casting to character

and from "AnyDamage" on character add your functions

[mental pike]

Hi im new to the engine and i just started learning lighting but for some reason one side is brighter to the other . am i doing smth wrong?

[maiden wadi]

@fossil thistle The question is inherently complex. If it's just one projectile with one effect, just put it in the projectile to affect a certain type of class when it hits. If you're looking to create a lot of effects, you need a more robust system to create new projectile types and a system to handle how your classes take damage and apply effects. If you're making a large list of things, I'd say make a component or something that handles these effects and their timers and stuff and create damage types to apply when using ApplyDamage. Then each projectile just needs to create a damage type, set some variables and pass it into the hit target. For example, say you want scaling effects and different durations. One frostbolt hits and SLOWS the target. Make a variable named something like FreezeSmount, another named FreezeDuration. If you want to freeze a target entirely, set Freeze amount to 1.0, if you just want to slow them down, set it to like 0.3 for 30%. Duration is likely time in seconds that the effect lasts. Now you have a system that can create projectiles with varying degrees or freezing power. When it hits, you pass this damage type in via ApplyDamage, use those variables you set in it to apply your freezing effects and set their timers etc. On the other hand if you just want three projectiles that freeze things in your entire game, just make them and forget the extra complexity.

[trim matrix]

Hello. I've made an inventory system and for the last 5 days i've been trying to do Drag And Drop. I got most things to work but at Random times if the item is > 1 then it sometimes dissapears when i try to move it.
For reference this is a video showing my problem: https://imgur.com/a/AoAxxPx

I have 3 things going on right now for drag and drop:

1. Left Click drag: Moves item to different slot.

2. Middle Click drag: Splits the items to a different slot.

3. Right Click drag: Takes only one item and puts it in a different slot.

(In the video i was only using Left Click but the problem can occur with the rest too.)

I'm am doing that in 3 Overidable Functions:

1. OnPreviewMouseButtonDown: https://blueprintue.com/blueprint/kcnvt7ss/

2. OnDragDetected: https://blueprintue.com/blueprint/5krj6n51/
   (Paste Bin creates a giant node in the end so here is a screenshot of that: https://imgur.com/a/5gRpqZ6)

3. OnDrop: https://blueprintue.com/blueprint/at_72jr0/
   (The MoveItemToSlot function contains this: https://blueprintue.com/blueprint/h_pbk5u4/)

I've been struggling with this for days now so if anyone can help i would really appreciate that. I suppose that its something wrong with the branches but i don't know.

Thanks in advance!

[shut hinge]

I have a ref problem popping up which I don't know how to resolve. When I stay in my commander's pawn the dialog system all works.

BUT... Soon as I switch over to another pawn (pawn possession), the Dwig UI Widget
Ref Variable then stops working.

The Pawns are children of the commander.

[orchid thicket]

Yes i looked at tutorials and it didnt work so stfu

but

how can i create function for the mouse to click and drag blocks in play mode

no on mobile

[maiden wadi]

@orchid thicket Telling people to stfu before you even ask your question and get a response is probably not the greatest way to garner a helpful response. On a side note, this tutorial seems to do what you're after. https://www.youtube.com/watch?v=XVND_jo-kNo

[shut hinge]

How do we access the widget when switching pawns?

[twilit heath]

accessing widget should never depend on which pawn is active

[shut hinge]

I tried to access it from the pawn I possessed, but it hasn't worked.

[twilit heath]

they don't belong to pawns, they belong to PlayerController/HUD

[shut hinge]

i was told I had to reset the Dwig variable once I possess the pawn.

[twilit heath]

HUD is the only gameplay class that should have any widget references

and control which widgets are shown where and when

[shut hinge]

that would be HudUi the main hud

[twilit heath]

that would be HUD derived class

[shut hinge]

well i put each party widget now in a size box. but the canvas panel is still there.

UI at the moment only works for commander but soon as I possess another pawn the UI ref turns invalid and gives errors.... So where exactly do I set the ref for Dwig so all the other pawns can be able to access Dwig?

[slate hound]

how do you combine 2 input directions so they don't add into each other making the character move twice as fast?

[atomic salmon]

@slate hound you clamp their sum to -1.0 <-> 1.0

[slate hound]

just add them and clamp? seems too easy, but Ill try it lol

I have 2 functions for climbing up/down and strafing left/right on a wall, when you press W and D or A and S you move twice as fast

maybe its just my world direction being funky

[orchid thicket]

@maiden wadi i said if ur gonna tell me to watch a tutorial

dont

[ember crescent]

i want to rotate my pawn when i press q and e but i cant get it to work someone know why? (my move forward is working.)( i have it connected..)

[orchid thicket]

and u did exactly that

thats the video where the guy started at some point where i dont have anything

so that video actually didnt work out

another one did but the guy also had something that he dont tell u how to setup

[fervent trellis]

@ember crescent I think turning right would be your Z axis assuming you are standing on the floor and want to turn right

[ember crescent]

@fervent trellis tested that ty tho (your right)

[tight schooner]

@ember crescent you're multiplying the existing rotator with the axis so that's kind of nuts. Then you're adding the result to the existing rotation with the node so I bet the whole thing spazzes out

Instead, take your axis value, multiply it by Get World Delta Seconds

And plug the result into Make Rotator Pitch & Add Relative Rotation

The rotation might be pretty slow though (1 degree per second lol) so you'll have to scale that up

Axis × WorldDeltaSeconds × 360 (or w/e)

Into pitch, then into AddRelativeRotation

[slate hound]

@atomic salmon I figured why it's happening... I'm multiplying my input values to slow wall climbing down slower than the walk speed so the "Scale Value" into the Add Movement Input nodes is less than 1 so it allows them to be added together

I need to figure out a different way to slow the character or a different way to move the character on the wall

[ember crescent]

@tight schooner aa ok ty! it works now 🙂 (should i change this too then or what is the difference?

[tight schooner]

@ember crescent that's okay, but the movement speed will change based on the framerate of the game. If you want to compensate for variable performance, then you have to factor in WorldDeltaSeconds, which represents the frame time.

For example, if you do axis × WorldDeltaSeconds × 100, it'll move as fast as 100 units every second no matter what the frame rate is.

InputAxis events are what you call "ticked events", which means they fire once every frame

so if there are more frames per second, the event fires more often. On ticked events, you sometimes have to use WorldDeltaSeconds in your math somewhere to compensate for that.

[ember crescent]

@tight schooner aa ok now i understand thank you 🙂

[west jasper]

hey! I have a question 🙂 When you have a random dialogue system for NPCs (just general to add atmosphere) how do you go about trigger something like the withcer 3's first town. When you enter it/get near it all the npcs talk to either the player oother NPCs. Is this triggered just by a trigger box around town? or a trigger around each NPC and as the player walks over the NPCS trigger when nearby it triggers there dialogue?

or other npcs*

[flat raft]

Is there a node for Get Smallest Integer? (given more than 2 values.. ex, 4, 8, 2)

I know about MIN, but it takes only 2.

[dense mica]

maybe with for loop

[shut hinge]

The pawn UI access issue has now been fixed but I have a problem with the XP levelling Component system.

And this is the problem

Conflicting levelling Component of the parent is overriding the child component. Causing the following issue. When I level up the commander to level 10. Then switch pawns, (take possession) his level UI drops down to 1. Then as I level up the child pawn, to 5 then switch back again into the commander pawn, the child pawn's value dissapears off the screen and the commander's value reads 10.

[dense mica]

add them to array then for each loop get the index, set it as current integer, then check for if < than current index

[flat raft]

I'm trying to avoid loop. well I already have a loop, but to check it, I would need another loop.

[dense mica]

what do you mean for "check it"?

[flat raft]

I'm prototyping a basic crafting system

So I have an item, arrow, to craft. Requires 2 wood, 5 iron, 3 wood.

I have 4 wood, 8 iron, 6 wood.

So, I need to get the MIN of those to craft the arrow

[dense mica]

yeah looping is a very bad idea in this case

[flat raft]

The system is working, but I have 2 loops. I would like to have only 1

[dense mica]

docs says there is a "MIN" node

https://docs.unrealengine.com/en-US/BlueprintAPI/Math/Integer/Min_integer/index.html

[flat raft]

Yea, I used the Min.

[shut hinge]

any solutions to resolving the xp component conflict? i been stuck on this a very long time.

[flat raft]

But it only takes 2 inputs

[dense mica]

you can increase

by clicking the +

[flat raft]

Oh gezzzz

[dense mica]

but the wrong part of this

you cant adjust it dynamically

[flat raft]

LoL I didn't even see the +

[dense mica]

i mean lets assume you have 4 inputs, but only wanna calculate 3 of them

this is not going to work

[flat raft]

Oh true

[dense mica]

4th one will be considered as 0

so looping is your only way in this case as far as i know

[flat raft]

Seems like

[dense mica]

i would create a select/switch node

first calculate how many elements you need to calculate then use "select" and use pre-made MIN function lol

its totally not dynamic and a good way but works

maybe even less performance-eater than loops

[flat raft]

I'll check it out. Thanks!

[random ginkgo]

level streaming question - is it possible to somehow pass data to a level being streamed in, like parameter values, or get data from a level that was just streamed in, like a specific actor in the level in that level? I have a simple level with a sphere and I want to stream instances of this level in and customize these spheres, change materials and set some properties on the actor class. The last sentence of this page in the documents suggests it should be possible: "In addition to Load Stream Level and Unload Stream Level, the Get Streaming Level function enables even more dynamic streaming behavior. Since it gives you access to the actual level streaming object, you can modify and query its state. Using this function in combination with Create Instance, you can also create and stream in copies of a specific sublevel. By applying transforms and sending parameters to these copies, you can create procedural worlds." I can get the level and use create instance and transform it, how do I send parameters?

https://docs.unrealengine.com/en-US/Engine/LevelStreaming/Overview/index.html

[flat raft]

Thoughts on how to design a weapon builder ? I have a bunch of weapon parts, each has it's own functionality, and I want to be able to have one affect the other. So say I have a build when I add 2 triggers, and 1 projectile, 1 ammo type. I want both triggers to shoot the ammo out of the projectile. Similarly, if I have 1 trigger, 1 projectile, and 3 ammo.. what kinda structure would he best so that I can choose a ammo to shoot out of the projectile.

All dynamic btw. I could pickup any type of ammo.

[dense mica]

Well thats kinda advanced topic making everyting dynamic and using pick-ups

[flat raft]

Yea.. it's a bit confusing. I'm basically making a Kerbal Space Program style builder but for weapons.

I'm finding it difficult to find a starting spot for that logic

[dense mica]

never played it but you should break down every action to functions and check conditions everytime before triggering them

[flat raft]

https://youtu.be/HGCRK-KLs5Y

I have the builder done. Just have to add the behavior logic

[dense mica]

looking nice btw

i am just confused about "linking triggers to different muzzles" part

you can easily make every part different actor and use a blueprint interface to shoot bullets from muzzle

but linking them to muzzles is a different question 😄

well after all using a null "actor" variable as "LinkedMuzzle" would work

[flat raft]

I need to put a spinner box, where the user can choose groups

so say they add 4 projectiles to the build, they can assign which tigger fires which projectile

And which ammo for which projectile

[dense mica]

so ammo is just a magazine, right?

[flat raft]

yup

But it's more like... bowling balls, CDs, saw blades

[dense mica]

each trigger should have a variable which is gonna contain the muzzle actors later

i would start the behaviours from triggers

since no trigger means no firing

[flat raft]

ahh, so the trigger as the base

then assign projectile to trigger

And ammo to projectile

[dense mica]

first you should check for "==" i guess to detect type of ammos

you can do this with tags or enums (default value)

i guess an AK47 magazine wont hold a CD? 😄

[flat raft]

in a video game world.. I can fire a mini copper from a AK

😂

[dense mica]

well sure then skip this part 😄

[flat raft]

I think that's a good place to start... start with trigger, and setup associations

Thanks!

[dense mica]

you should spawn bullets from muzzle i guess

since you need spawn transform it would be diffucult to access it from trigger

then on BeginPlay event, initiliaze the bullet (from bullet actor not muzzle)

[flat raft]

Yea.... oh man... I'm def going to make a mini copper launcher

It's just silly enough to be fun

[rough blade]

What is the best way to have bullets apply force to the objects they hit?

[quartz pawn]

so I got an animation blueprint but it plays the walking animation while he isn't walking (ai im doing). how do I make it where when he isn't walking, he plays the idle animation

[spring hare]

Does anyone know why when i shoot the client can see the server shoot but the server cant see the client shoot

[frozen copper]

Why does this cast fail?

[quasi frost]

I want to run run an event on turns that are a multiple of 2. Is there this node but for things besides frames?

[quartz pawn]

so I got an animation blueprint but it plays the walking animation while he isn't walking (ai im doing). how do I make it where when he isn't walking, he plays the idle animation

[random ginkgo]

@quasi frost if you have a turn counter, divide that by 2 and check the remainder (modulus operation) and do a branch on that

[weary jackal]

so I got an animation blueprint but it plays the walking animation while he isn't walking (ai im doing). how do I make it where when he isn't walking, he plays the idle animation
@quartz pawn you have to change anim stats between run/idle. In your animBP>Anim graph

[shut hinge]

i got a problem with the UI binding when I possess another player. The UI only updates itself as long as I remain with the posessed player. But the values update correctly in print string but the Ui is not correctly passing them. Instead when I leave the player to possess another it resets their level to 0. THen when I take control of the player their level then updates.

[random ginkgo]

@quasi frost if remainder is 0, it's an even turn

[quartz pawn]

@quartz pawn you have to change anim stats between run/idle. In your animBP>Anim graph
@weary jackal I have transitions but I don't know how to alter a variable based on a characters movement

[quasi frost]

@random ginkgo Can you explain the flow of that? So current turn/2, and then something with the %?

[random ginkgo]

You want a branch node, and the condition will be CurrentTurn Mod 2 == 0

If that's true, it's an even turn

[weary jackal]

What is the best way to have bullets apply force to the objects they hit?
@rough blade you can go with this approach. Add a projectile movement for your bullet and a capsule collider same as bullet. When capsule collider begin overlap with actor, add force. And the force velocity will be your projectile velocity * power

[quasi frost]

LIke this?

[random ginkgo]

Yes, that should work

[weary jackal]

If it's multiple of 2 than try with first changing float to int

Round function

@quartz pawn in your AnimBP, go to anim graph. You can see the default stat is idle. If not then make default to idle. And when player speed is >10 then change to run. And when if backs to 0 then change to idle

[quartz pawn]

How do I get the player? speed

[weary jackal]

Cast it in your AnimBP, event graph

[quartz pawn]

so cast what

the object

[quartz pawn]

oh thx

Wont work for me

@frozen copper

[weary jackal]

From try to get player pawn. Cast that to your player character, whichever you're using

[quartz pawn]

then get velocity?

[weary jackal]

From that get maxWalkSpeed

It's your speed

[quartz pawn]

okay

but my max walkspeed is still above 10 when its not moving

[weary jackal]

Pardon, you've to get the speed

The player currently has

[quartz pawn]

with what node

[weary jackal]

I've made a float for current speed in my playerBP. And set it from 0 to max. And it interpolate between them. When I press forward button.

[quartz pawn]

confusion

its ai

so i cant have a forward button

[weary jackal]

no what i'm saying is when it starts walk

it speed gradually increase to max

[quartz pawn]

but im confused on what i do

[weary jackal]

https://i.gyazo.com/d9f91df8f7647e2601ad7a78978a277c.png

dm me

[idle galleon]

hey!
can anyone explain what is the different between class reference and object reference and soft class reference and soft object reference ?

[tight schooner]

@idle galleon someone can correct me on this but I think a class reference refers to the class in the abstract (I have little experience with them), while an object reference refers to an actual spawned thing in your game world — it's a reference to a single, specific thing rather than a type of thing.

I don't have much experience with soft references either but it's a reference to an asset or class that doesn't necessitate loading that asset into memory, so it's mainly used to manage memory usage and asset streaming and stuff.

You can refer to assets in the abstract with soft references, and there are nodes that "resolve" them into hard references, which cause them to be loaded into memory

Epic had a recent stream on soft references https://youtu.be/K0ENnLV19Cw

[twilit heath]

they are both a pointer to the asset

difference is, the soft one doesn't load if automatically

which can make a significant difference considering that any loaded asset will automatically load any asset it hard references

and they will load theirs...etc

there was a 2 part video by Sjoerd on Blueprints that went in-depth on this subject

[idle galleon]

there was a 2 part video by Sjoerd on Blueprints that went in-depth on this subject
@twilit heath can you send a link.

[shut hinge]

Done print string, values in xp levelling system are updating correctly but not the widgets.

[twilit heath]

https://www.youtube.com/watch?v=j6mskTgL7kU

https://www.youtube.com/watch?v=0YMS2wnykbc

i think it was the 2nd one

[idle galleon]

thanks a lot.

[lost solstice]

Can someone give me some ideas on how i could do dynamically filled water containers... My main use is a large container that is filling with water by holes in the side but if the holes are plugged then no water will through. Would it be better using material / niagra and gradually increasing the water volume until said hole is blocked or by doing a different system by spawning water objects and doing it that way?

[atomic salmon]

@lost solstice how accurate and realistic should your simulation be?

[lost solstice]

id like to atleast seem like the player has proper control over it but i dont want it to be too performance heavy as this is a quest idea

[atomic salmon]

The range of possible solutions goes from using a fluid simulation system (very difficult) to using procedural meshes to just doing it with materials/shaders (easy)

Ok then I would take the procedural mesh approach. These are meshes (geometries) which you can manipulate at runtime.

[tender sierra]

How do you set a delay before this happens?

[lost solstice]

i was thinking i could create gravity effected particles that fly out of the hole and just add a counter to increase the amount of volume and allow the particles to hit the players hands aswell

then just increase the size of the water mesh / particles as the volume increases?

just drag from the arrow of the left and type delay and then connect that to the rest @tender sierra

[atomic salmon]

@tender sierra with a Delay node?

@lost solstice that sounds like a plan to me

you can manipulate the water level as the water flows in

If the container has non transparent walls, you can even pull it off with a plane, representing the water surface, sliding up inside the container

[lost solstice]

would i be able to get a volume variable by the number of particles spawned through niagra or would it just be better to do a int variable in a bluprint

[atomic salmon]

you will need to calculate how much you need to raise the plane representing the water level based on the inflow rate

it's a straightfoward calculation

you just need to know the area of the section of the container

[lost solstice]

aight

thanks for you help

[atomic salmon]

you are welcome

[tender sierra]

is there a way to blend into a certain node value? So that a value wouldnt jump from 0 to 30 immediately, but within 0,2 seconds doing so

[atomic salmon]

@tender sierra that is called interpolation. There are interpolation functions for most types, including single floats (FInterp), vectors (VInterp) and rotators (RInterp)

[tight schooner]

@tender sierra "set lifespan" is actually a built in solution for putting destroy on a delay

I think it's part of the actor class

https://docs.unrealengine.com/en-US/BlueprintAPI/Utilities/SetLifeSpan/index.html

[lapis wasp]

i am new to ue4 and i dont know how i can make my cube reflect light. What am i doing wrong?

[tight schooner]

That's more of a #graphics question

[lapis wasp]

oh sry

i just joined the discord

[atomic salmon]

@tight schooner true, even though that's more for actors you know will have a predetermined life time after they are spawned (such as projectiles). Works anyway.

[sour aspen]

What happens if i have two timeline manipulating the same objects location at the same time? Will it be move as the total of them?

[earnest tangle]

it's probably going to move it twice

so depending on what order the timelines happen to be running it's either gonna be in timeline A's location or timeline B's

[tight schooner]

@sour aspen it depends if you're doing a Set Location or an Add Offset

[sour aspen]

So bounce is permenants its always moving but when player get some points i wanted a popping animation

[tight schooner]

I suppose they'll both add up cuz you're getting and adding to the current location

[sour aspen]

but when those the played together it moves from its place

but both timeline has an negative part so i was expecting it to fix it

it goes up and comes down again to the exact same point when i play the bounce alone

for example while it's at z=10 and pop is triggered so it will try to move it z+3 WHILE also other bounce is active so it might be causing it to move z-2 or z+2 what happens in that situation?

It looks and feels alright but when its played out enaugh time it goes down in total

[tight schooner]

Unreal Engine is a game engine and not a scientific simulation running on a supercomputer so you can't expect total precision out of it

Little variations in the framerate will cause it to do slightly different things

One of your timelines seems very short

[sour aspen]

Yes the pop one is just a popping animation so the object moves closer to camera

just for 0.1 second

[tight schooner]

Yeah, so that curve isn't "sampled" very much

Like if your game is running at 50 fps, the curve only gets sampled 5 times

[sour aspen]

hmm how do you figure out that from this?

Because it has low keypoint count?

[tight schooner]

It's one of the dangers of moving things around by adding offsets... Things will inevitably drift

[sour aspen]

What is the best practice for these kind of things?

Is there anything else I should be using?

[tight schooner]

I don't really know cuz it's situational. Like pawns will use physics/raycasting to return to the ground after a jump.

another approach is to keep the root component on the ground, but affect an attached component that everything else visual is attached to, and animate that by directly setting relative Z with a timeline curve (rather than getting and adding).

I'm not super knowledgeable about animation so idk the "best" approach

[sour aspen]

I think you're right. This should be non depending on the framerate

I wonder how timelines works with low/high framerates

I think there was a function to move an object from x to b with givin amount of time. That should be my way to go

[tight schooner]

I don't think the curves get "anti aliased". It's just when there's a frame, it looks up the current value of the curve based on the game time and executes the nodes

So if your framerate is twice as fast, the curve gets sampled and the nodes get executed twice as much

[sour aspen]

Hmm i see

I found it it's called move component to maybe it'll be better

[simple lantern]

Hola, what's a good way to get a periodic rotation? As in turn a little, stop, turn a little stop

https://en.wikipedia.org/wiki/Geneva_drive#/media/File:Geneva_mechanism_6spoke_animation.gif

like the red guy above

[earnest tangle]

One way would be to use a curve to control rotation speed

[simple lantern]

That is definitely a solution, but i'm trying to code it to go in bursts, so a single event call would spin it like 15 degrees then stop. And the next call would just add 15 degrees on top of that

[earnest tangle]

A timeline would probably work for that then

[simple lantern]

Yeah just figured it out. Thanks

[pure heron]

I'm having trouble setting up a grenade... I added a ProjectileMovementComponent, but it still just spawns and falls to the ground, even with velocity set to 3000. The only thing adding this component did, is the grenade despawns before it has a chance to explode.

[earnest tangle]

Try using apply impulse

since it sounds like you want it to be a physics based thing

[river wigeon]

can someone explain me why i get like 5 random floats in range instead of only 1?

[earnest tangle]

Huh?

You're setting a timer to call that function every 2 seconds

You should be getting a lot of them :P

[trim matrix]

@river wigeon The pure Random Float in Range node gets called twice

You're printing a different value than what's going in SetRotation. It's evaluated twice

[river wigeon]

oh damn, when i print the rotation in the function it gives me like 10 rotations every 2secs... is it because i use "get delta time" at Rinterpto?

[trim matrix]

@river wigeon When is the sequence node being called?

[river wigeon]

begin play

so i thought if i used tick, it would be me way more rotations, but event play does this too, im just not experienced enough for this one i ahve to admit

thought begin play only gives 1

[earnest tangle]

BeginPlay is only called once per instance of the BP

If you have multiple actors based on this BP, that might be why you're getting multiple logs

[river wigeon]

so i must use a local variable for the rotation?

rotation*

[trim matrix]

Yes. What I would do is make your event a function.

So your one float variable doesn't pollute the global scope

Functions can have local variables

[river wigeon]

yeah, but isnt the set timer by function name the problem?

[trim matrix]

Falling back on what zomg said, how many instances of dangerplant are alive in the world?

yeah, but isnt the set timer by function name the problem?
@river wigeon

It looks fine to me

[river wigeon]

so, i changed the rotation variable with a local one, i got 12 plants, only the local one moved, but still got multiple rota inputs :/

and really thank you for trying to help a stranger you dont know in the net 🙂

btw same thing happens, when i have only 1 plant i get like 10 rotations

[trim matrix]

It's because the timer is calling your event every 2 seconds. That's what you want right?

[river wigeon]

so, what i try to acheive, is that the plant randomly make yaw rotations, every 2 seconds, but only 1 at a time as example, the plant is looking north, now after 2 seconds, the plant is looking south, i used random float to the a random direction, because it does not matter where exactly it looks in idle state

but somehow i get like 10 random directions every 2 seconds, and that destroys the rotation completly and looks like an epileptic seizure

[trim matrix]

If you remove the exec call to Set timer by Function name, does it still happen?

[river wigeon]

exec call?... should i do that? i have only begin play>sequence>set timer