blueprint

[gentle urchin]

Event dispatcher is more bp land ^^ same thing

[elfin inlet]

how can i check if a key is still being held down?

rephrase:
i know i can make it an axis but is that fine in terms of perf cuz its running on some kind of tick

for sprint on shift key

[viscid python]

I see, any tutorials on that handy right now? 😉

[elfin inlet]

i saw that

[maiden wadi]

@quaint sigil Following that example. This is also a point. I have an array of five textures here. Absolutely none of these are loaded from disk to memory until that EventConstruct, and even then only the one chosen from the array is loaded.

[versed sun]

if you click the keypad button, the next key you press will be selected

[quaint sigil]

Thank you very much 😊 I will try it sometime 😊

[mild crystal]

how do i adjust where player is looking to if i look left he will turn left

?

[elfin inlet]

i'll pass the key from input event

[quaint sigil]

So if you move mouse to left then player will just rotate to left? 🤔

[tawdry basalt]

I am trying to make the character look at mouse position on right click, but it doesn't seem to work. Any idea?

this is what calls this function

[maiden wadi]

AI, or player controlled?

[tawdry basalt]

player controlled

[maiden wadi]

Depends on your pawn's control rotation settings. Do your settings mirror this?

If yes, it's overwriting your SetRotation. And instead you need to get it's controller, and set the control rotation to what you've set the rotation to.

[tawdry basalt]

no, I don't

I don't have these settings

[maiden wadi]

Which do you have checked?

[tawdry basalt]

none

[versed sun]

Player Controller

[maiden wadi]

What about it's movement component?

[maiden wadi]

Does it rotate correctly when standing still?

[tawdry basalt]

it doesn't rotate at all

[elfin inlet]

are you trying to replicate top down template mvement?

[tawdry basalt]

it is the top down template

[maiden wadi]

Should add a print and make sure that function is running then. Can't think of anything else that would affect your rotation.

[tawdry basalt]

it is running

[maiden wadi]

Odd. Not familiar with anything else that alters rotation automatically outside of AI controlled stuff.

@quiet knot At work we have a single massive file for all of our usual Enums. You can't forward declare enums or structs though, only classes.

[elfin inlet]

somehow this works completely fine....

[verbal current]

Hoping someone can shed some light.

I have an actor that is spawning another actor (VillagerNPC) that has an actor variable named spawner inside of it.

I'm assigning the spawning actor to the variable Spawner inside the villagernpc.

A few days ago this was working just fine. And I could interact with the variable inside the villager blueprint. BUT now I'm getting "Accessed None trying to read property Spawner" when I try to use the variable Spawner from inside the villagernpc.

Any idea what I might be doing wrong?

[mild crystal]

yes

i need help to do that

[versed sun]

Is it spawning ?

[verbal current]

It is.

[maiden wadi]

What event are you using it on?

[versed sun]

and only fires once ?

[verbal current]

it's down the chain from event begin play

[maiden wadi]

Beginplay runs before that variable is set.

[verbal current]

ah

Let me try making a custom event and calling that from event begin play

[maiden wadi]

Make it an InstanceEditable and ExposeOnSpawn.

[versed sun]

if it tries to spawn a second time and can , it might overwrite your Spawner var to empty

[verbal current]

got it, so the problem is that assignment happens after beginplay. I need to look at the life cycle again and understand it better

[quaint sigil]

I dont know if it is correct way but I would take Axis Value from this event, multiplied it with some sensitivity and aplied that rotation to player

[verbal current]

I'm not sure what that means but I'll start googlin

[verbal current]

yeah it only spawns once ever.

[maiden wadi]

Click on the property.

[versed sun]

yes i see, i was looking at pins backwards

[verbal current]

Oh, you mean making it public

yes it was

[maiden wadi]

Then right click your spawn node and refresh it.

[verbal current]

didn't have expose on spawn though

[maiden wadi]

InstanceEditable and ExposeOnSpawn need to be checked.

You can pass that in here, and it'll be available for Beginplay.

[quaint sigil]

something like this https://i.gyazo.com/b1e0a3656df234b25c3210a158f5252d.png

@mild crystal

[verbal current]

Oh, it's showing now in the spawnning node

it still wasn't working but I'll try assigning there instead

[mild crystal]

thx i will try

[maiden wadi]

Put Self there instead of the set node, you can remove the set node.

[verbal current]

yep i did just that. COOL! that's nifty.

My AI moveto is still not working but I'm getting an actual reference now in the spawner variable.

I can print out it's location for example

[quaint sigil]

just use this event #blueprint message

[verbal current]

so it's progress. thank you!

[maiden wadi]

Are you spawning AI controllers for these villagers?

[verbal current]

No.

[mild crystal]

what that rotation rate does?

[verbal current]

this is what the villager is doing, the first AI move to works just fine. the 2nd one fails. If i manually put in a location though that's not a variable it works just fine

[gentle urchin]

O.o

Oh nvm it went behind

[verbal current]

oh the exec? lol yeah it's going elsewhere

for clarity

[maiden wadi]

I personally hate dealing with ai movement. Literally the most annoying thing about AI by far.

[verbal current]

haha, but i do gotta make it move

[quaint sigil]

its sensitivity

[maiden wadi]

Complex chain abilities? Easy. Target selection? Done. Random behavior choices for personality? Joke. Complex movement? Hell nah.

[verbal current]

for example, if I do this, use a make vector it fires off just fine. If i attach the spawner to the target actor, OR pull the get actor location from the spawner and set that to the destination. It fails.

[mild crystal]

yeah but that wasnt what i want, i want when i look to the left my character will turn to where i am looking

[maiden wadi]

Try projecting it to your navmesh.

[mild crystal]

idk how to do it

its like als and echo locomotion

[quaint sigil]

I think my solution correct 😄

[verbal current]

Sorry, again not sure what that means. Just started learning a few days ago.

[quaint sigil]

i dont know what is echo locomotion

I never did FPS in UE

[verbal current]

so do that, but feed the nav mesh into the nav data?

[mild crystal]

its the ancienty ue5 project the character from there

[maiden wadi]

No need, leave it blank. Only need Point and QueryExtent.

That is for specialized movement finding.

[quaint sigil]

I use UE4 😄

[verbal current]

so you're saying, get location from spawner, feed it into projectpointtonavigation and then feed that into the location in the ai moveto?

[mild crystal]

anyways, thx for the help man apreciated.

[quaint sigil]

sorry 😦

[maiden wadi]

Yep.

[verbal current]

will try that soon

thank you!

[mild crystal]

np

[maiden wadi]

If that doesn't work, check your navmesh. Press P in editor, should show up as a giant green thing.

[verbal current]

yep nav mesh is fine

[maiden wadi]

Basically the 100,100,1000 draws a giant pillar box, and gets the best location inside of it on the navmesh it intersects.

[verbal current]

hey that worked!

had to up the query, missed that at first

i don't understand why i need that

but i can look into it

thank you for the help!

[mild crystal]

i want to change the character when i look 180 degrees or 90 degrees and i made this. Can someone tell if this is correct

[sturdy herald]

try it out, if its doing what u want, then its correct.

[mild crystal]

one more thing im getting stuck at 1.200 compiling shaders, anyone know why?

[quaint sigil]

just wait, I think its normal

[sudden spear]

hey 🙂
is there a way to get the overlap location of two box collisions? (somewhere in the red area)

[mild crystal]

its on 185 about an hour

idk how fix it

[versed sun]

Line trace on 4 red arrows that ignore yellow box and hit dark box

that will give you 4 vector loc points

[sudden spear]

nice idea! 😃
..will try that!
thanks!

[quaint sigil]

I think it needs to be compiled, it depends on performance of CPU, I dont know

[mint lava]

There's an ImpactLocation in a shape trace as well

[versed sun]

isnt that just 1 point ?

[mild crystal]

im pretty sure this is a bug. i just dont know how fix it because i search it on internet and it happened sometimes

[lilac hatch]

Is there a blueprints version of the Discord Game SDK

[wispy pumice]

Could someone tell me exactly what does UnrotateVector do? Nobody seems to know and I can't find any mention of it on YouTube or Search Engines.

[sturdy herald]

checking the documentation: making an inverse rotation. So if u're rotator should rotate the vector with 90 degrees on Z axis (that is a rotator with 0,0, Z value i think, but dont know much about rotators) then the unrotate vector will rotate it in -90 degrees.

[wispy pumice]

Ooh, I think your right there...it just rotates it in the opposite direction then?

I'm going to try to see if I can make it so one is rotated 90 and the other -90

[sturdy herald]

i think, but just try it out

[wispy pumice]

Alright, for sure...I'm going to test that and see

@sturdy herald Thanks

@sturdy herald Yeah I just had it confirmed...that's what it is...just an inverted rotation

[sturdy herald]

Good:))
U're welcome. What i said about rotators might be not true, but that doesnt change the working of unrotate vector node

[wispy pumice]

Lol

Well in either case I finally understand what they do

[lilac hatch]

Anyone?

[wispy pumice]

@lilac hatch There are some plugins on the Marketplace but other then that I'm not sure...they aren't free either

[lilac hatch]

Darn...

[echo scaffold]

I wanna automatically populate a widget with buttons for a bunch of variables. I have a data table that makes and parents some Check Box & Slider widgets. The variable key is a name so I have a variable key "Size" that spawns a Slider widget and a variable key "Visibility" that spawns a Check Box widget

But in my data table I also wanna set a default value for my entries. So in the struct that the data table is based off, I would have to add a bool variable and a float variable for the default values

but then my "Size" variable would obviously ignore the boolean entry for it's data table row, and the "Visibility" variable would ignore the default float entry for its row

The redundancy is making me feel like there's a better way

So is there some standard practise for some ultra generic variable that I can use which could store data for any variable type?

Possibly a string or name, which could be converted to a bool, float etc, or is that bad practise? anyone got any advice? is the whole idea trash? kek

[dark crow]

You mean rich presence?

[lilac hatch]

Nope

[trim matrix]

I need help with resetting positions of the game whenever someone scores a goal. I tried using the node "reset level" but the camera messes up. anyone know why?

[trim matrix]

If I have multiple levels, is there a way to keep track of each level's state? Or do I just use one GameState to manage every level?

[mint lava]

if you need that state all the time everywhere, game state isn't a bad choice

why not the actor that has the state? then when that actor isn't network relevant you don't have to replicate the data anymore

what is "state" in your context

[tranquil abyss]

is their an array swap function

like swap items in position 0 and 2 for example

[versed sun]

Set array element

[tranquil abyss]

o

lmao

[trim matrix]

Well I plan on players transitioning between levels and each level is very short but I'd like each level to have its own state, as they change.

I don't need the state at all time, just when that level is active.

Like if I"m in the lobby, then there's a lobby state which manages actors/variables relative to the lobby.

Then if I'm on level 1, there'sd a level 1 state which manages actors/variables to level 1.

Etc.

If not, i can do checks in the Tick of GameState to check what level I'm on.

And allocate variables specific to that level.

[pure relic]

Hi hi. Easy question here, happy to clarify if I don't make sense.

How can I translate the return value of my random seed into choosing an item from the list with a return value each time?

I'm not getting any result for anything above 3, so I know I need math in between my return value and index, but im not sure how to do it

[full dew]

whats the easiest way to make character play animation even before current animation finishes?

[tawdry surge]

@pure relic are you asking how to turn your random float into 0-3 range?

[pure relic]

I believe so, yes. The goal is to keep the random float consistent with the intention of increasing my 0-3 range into 0-50 later

I need to make sure the seed im pulling from is consistent throughout

[tawdry surge]

Well the easiest way would be to set the range on the node

[pure relic]

Sorry, I may not be clear.

If my float range is anywhere above 3, i get no result. I want my result of 7 to then factor back into option 0-3

So would I need to divide my seed into a multiple of 0-3... or something like that?

[tawdry surge]

Modulo by 4 then truncate and use for the index

[dark crow]

Or you could just use a different Max that matches

[tawdry surge]

If the value is exactly 100 it'll return 4 and nothing will happen

Otherwise it'll give something between 0-3

[pure relic]

exactly, I want to prevent that. There may be a total of 148 when done, so i need that math

[pure relic]

I'll try that, thank you

[tawdry surge]

That won't matter it just means that whatever your last index is will only be chosen if the random value is exactly 100.

[pure relic]

that worked. Fantastic thank you.

[pure relic]

I have one more question if thats cool.

If one item in my index is chosen, how do I prevent that index # to show up for the remaining slots?

(For example, 3 of these blueprints are on the level. If option 0 is chosen, I only want 1,2, or 3 to show up for the remaining)

[tawdry surge]

You'll have to keep a list of the index number you've used and before you select an item, check it hasn't been chosen b4. If it has pick a new number

[pure relic]

Gotcha... Do you know a recourse where I can look up how to learn this? I don't yet know how to translate that into blueprints

[glass magnet]

hey yall so im trying to set up a basic/auto attack system for my game and i have the attack range registering possible enemies in the area but how can i set it up where it actually moves until it registers the target

[tawdry surge]

No, but after im done cooking dinner I can put up a ss of how to do it

[glass magnet]

make that dinner ill be patient i appreciate the help ahead of time

[tawdry surge]

Haha sorry meant PXL

[glass magnet]

damn it

x.x

what is pxl trynma do

[pure relic]

You'd be my hero

[tawdry surge]

@glass magnet your question sound like an ai perception node and gameplay tag thing

[glass magnet]

well im trying to make player detect player

or player detect ai at somepoint

and to move into range of ^

[tawdry surge]

Yeah
If you assign a player tag to the player. Add an ai perception component to your ai controller and set it to use sight.
There is a walk through for doing this in the behavior tree quickstart guide on the documentation site

[glass magnet]

well

[dawn gazelle]

Your best bet would probably be to create an array of available options. Then all you need to do is use an array random node from the array to get the choice. You can then remove that choice from the array, thus the next time you choose, you will only be choosing from what is available.

[glass magnet]

well im trying to make it like if i click to move, if i click on an enemy to attack then it would move in range of

[tawdry surge]

Oh, ok. Like top-down turn based thing

[glass magnet]

im not making it turn based but yeah top down click to move

[tawdry surge]

Ok. Then you'll wanna do the tags and perception like I said for the ai.
The character you can just get the vector and distance to the enemy and subtract some amount so they stop a lil short

[glass magnet]

ok ok

yeah yeah yeah

1 question before i begin

wdym tags and perception, like i give the player blueprint a specific tag for it to detect?

[tawdry surge]

Yeah. You can assign gameplay tags in the details panel of the player BP

[glass magnet]

this is news to me i appreciate it

[tawdry surge]

If you Google ue4 ai documentation and follow the links to the behavior tree quick start. It has a step by step walk through

[glass magnet]

ill be back if i need help

appreciate it though

[pure relic]

Hopefully this isn't a stupid question, still new to this, but I can't seem to find that purple variable type 😅

[tawdry surge]

It's a class reference

[dawn gazelle]

It's the same as these, but you make it into an array instead.

You'd want to use a base class that all of these choices inherit from for the array type.

[tawdry surge]

You only need to add like 3 nodes to your old set up though to use ints rather than referencing the class

[glass magnet]

lemme just ask 1 quick question, if i had team 1 and team 2 would they still have the same tag or what would be the correct way to go about it

[tawdry surge]

@pure relic

[trim matrix]

what is this node called?

[tawdry surge]

material output

[trim matrix]

those are all the material outputs I got

nothing alike

[tawdry surge]

Are you inside a material asset?

[pure relic]

I'm getting this error?

[trim matrix]

yeah

[dawn gazelle]

One of the requirements @pure relic has is that the list may eventually have up to 50 options, meaning any time an option is added, you'd have to expand the select node, and change the modulo. This is much simpler (and this time I included the random stream array choice node as I didn't realize he was trying to pull one from a random stream) and all that is required is to generate an array of classes to choose from which can be defined directly in the blueprint or generate it from another source (like a data table or data asset, or whatever)

[dawn gazelle]

Looks like you selected the wrong variable type and are trying to feed it into the wrong "contains" type.

[gentle urchin]

Material type post process ?

[pure relic]

Thanks for your patience, really tryin here haha. Let me try that...

[trim matrix]

wdym

[gentle urchin]

The node is just the default output node for a post process material

[trim matrix]

this is what is on the tutorial

this is what I got

[pure relic]

Can't seem to find 'random array item from stream' im on 4.25 - does it have to do with my version?

[gentle urchin]

Wrong material domain

Changed in the settings of the material

[dawn gazelle]

Yeah I think that was made available in 4.26. This will effectively do the same.

[pure relic]

hah, makes sense. Thanks.
It also automatically makes an array node when i plug in get -> set

Appreciate it

[dawn gazelle]

That's not what you want to set.

You want to set "selected character"

[pure relic]

Ah, thank you. Gotcha.

[oblique sigil]

I'm trying to make it so that when the player character is within this box, they can press a button to start an event but i can't seem to wrap my head around it u_u

i'm using the default template for the top-down point and click if that matters at all

[wintry maple]

One way to think of it, might be like this: is this box a collision box? If so, you should easily be able to set the OnOverlapped of this box to react to Pawns. If a pawn is in it, you can set a boolean value on the pawn. Something like IsInBox. On the switch, look for that value on the user of the switch. IF they have that value and it is true, let them use the switch.

[oblique sigil]

alright, i figured it out. thanks!

[glass magnet]

Hey y'all sorry I haven't been able to figure out this system. I need the played character to move to range of a target but I don't the the correct way to go about it

[glass magnet]

do I use a sphere collider or tags or variables? What would be the best way to do it?

[pure relic]

So im plugging it all in, and I know I missed one easy step probably. Here are both blueprints.

1. I am getting repeating array values still...
2. Array only comes up with values 0-2 now, not anything more

[dawn gazelle]

What does your "Possible Characters" array contain?

and is it a variable of the class or a local variable (if it's local, it won't work right)

[pure relic]

Im guessing this is local

[dawn gazelle]

You can see if it's local or not on the left side:

[pure relic]

its not local

yeah just saw that haha (thanks for your patience)

[dawn gazelle]

The other thing is... How do you know you're getting repeating values? If this is being called on begin play, then it should only fire once.

[pure relic]

I only want one color to show up out of the four. So my error was putting the same blueprint down four times, when instead I need to have 4 unique blueprints that are each one unique array value I believe?

[dawn gazelle]

If you put the same blueprint down 4 times, then each instance of that will have it's own copy of that array, so each would roll whatever it wants (so two of them could roll 1).
The way around this would be to have something else that manages the array and values that isn't directly tied to the actor itself - so using something like game mode or game state, or a different actor entirely.

[pure relic]

Gotcha. So a manager blueprint, that then I can call upon with my current blueprint. All blueprint data would be put in the manager, and then I'd reference it in my individual character blueprints

[twilit gull]

what can i do to remove infinite loop lag issue? i've made self reproducing tiled map on box collision overlap event

and once pawn activates it for the 6-7 time it becomes infinite loop

i've even tried to destroy previous tiles, still loop issue wtf

[spark steppe]

distribute the work across several ticks

[twilit gull]

wdym?

[spark steppe]

what i said, don't do crazy iterations each tick

otherwise blueprint vm will bite you

or do it in cpp

[twilit gull]

thats not even an iteration 😄

i've got flying actor that overlaps the extender box and only after that new tile appears

[spark steppe]

you talked about tile generation

[twilit gull]

thats tile with extender

they dont touch each other, so collision shouldnt be an issue

but still unreal thinks i'm running infinte loop somehow

[spark steppe]

maybe you do?

[twilit gull]

well, i really do, but i've deleted the BP where i did

and there was no issues before i started working on this tile generator

i can fly around as long as i wish, but if I start using this overlap event - 6 tiles, lag, infinite loop issue

this doesn't affect anything either

[celest perch]

Does remove item or remove index node properly clear a struct from an array? I've tried both nodes and somehow the index/item is still in the array.

[teal swift]

you don't need to, what do u u use?

in a shader it can be rendereded

and after you do a transition

had the same problem

[glass magnet]

Hey y'all sorry I haven't been able to figure out this system. I need the played character to move to range of a target but I don't the the correct way to go about it. Do I use a sphere collider or tags or variables? What would be the best way to do it?

probably shouldve changed it up rather than copy and pasting

but its ok

[teal swift]

u sound like a usual shit

[glass magnet]

?

[teal swift]

in some ways

like "do it and you will"

typical line for a disaster

we are sceptical here

[glass magnet]

huh

[velvet dagger]

ikr this dude kinda mean

[glass magnet]

🦸‍♂️

but yeah no past 2 day I haven't figured it out. I just wanted to know the basis I should build from

[icy dragon]

Bruh, calm down

[icy dragon]

You can use either, but if you want it to be aware with the direction, comparative distance with vectors would be the way to go.

[glass magnet]

So using tags and comparative distance

Or can I just compare between target and player no need for tags

[icy dragon]

Also simply overlapping with sphere collision doesn't put into account how near/far it was

[glass magnet]

Yeah

It also

At least the way I had it set up

Was taking the sphere from the other target aswell

[glass magnet]

I'm sure there's a way to do it but do I need to utilize tags or can I just do this

[icy dragon]

You can skip tags if you really just want to get player character

[glass magnet]

I'll worry about it later when it's possibly a problem it would be better to just have a base down

I appreciate the help

This seems much more simple

[velvet dagger]

I want my character to walk slower when they walk backwards, how could I do that?

[teal swift]

sure mate

[fast escarp]

Do they turn or do they actually step backwards?

[teal swift]

man I like your opinion (not gay)

[echo salmon]

Hello i have those settings on my SpringArm which children of it is my Camera . But as you can see from the following gif the camera is acting strange

[velvet dagger]

Ack sorry, I was doing something haha xd

[velvet dagger]

I have it where the character always faces forwards, so I guess they actually step backwards

[fast escarp]

Sure, something like this should work

Basically checks to see if you're facing backwards, and if you are it pushes you forwards some

can change the -5000.0 in the multiply to make it more substantially "slow"

[brazen merlin]

that strangeness looks like the root of the springarm is not at the center of the ball

[echo salmon]

The root of it the is the ball mesh

[brazen merlin]

i dont mean the root component, i mean the start of the spring arm

[echo salmon]

@brazen merlin you are correct let me check this

@brazen merlin You were correct bro ,ty so much !

[brazen merlin]

awesome, np

[hearty barn]

heck yes finally figured it out no more manually placing it

[brazen merlin]

well... how did you figure it out? an import checkbox?

[magic parcel]

I am getting this error on a bind I created, doesnt make sense....

its a simple pull from the variable

why would I get access none?

what does target none MEAN 😛

lol

but it does, so it means the call is wrong at the higher level, in the event graph?

[timber knoll]

Where do you set this EquippedWeapon

[timber knoll]

You are just showing us that you have a DisplayName inside the weapon blueprint

[magic parcel]

sure sure

nothing, which is fine

but when I put one on, it doesnt show anything

[timber knoll]

How is that fine

[magic parcel]

so that error stops it from working when one is?

[timber knoll]

I would suggest a different way of setting the weapon in your UI...

[magic parcel]

when nothing** is there

[timber knoll]

Instead when you equip a weapon, tell the widget the weapon that just got equipped

and in your widget just check if the equipped weapon is valid

[magic parcel]

k

so the is valid creates a caste for when its not, the other calls it on the equip function from the player

[timber knoll]

IsValid checks if the reference is valid, if it is: you execute something...

[magic parcel]

im an artist my man, learning this as we go

lets roll it down a tad 😉 @trim matrix

im asking because I have no clue

im fumblefucking my way into this

so this is what I do for when I overlap with the weapon, and it works

[late rover]

I have a very weird problem where my actor (In this case a door) only works the first time I press Play. Any other playthroughs after that it stops working.

To get it working again I have to update something in the blueprint (Anything, doesn't have to be related to the actual logic. Almost like it refreshes the blueprint) and then it works a single time again.

[magic parcel]

so, ill go back into the widget, remove the code and put in an is valid for the Event graph, then go into my BP player on the PICKUP event, and make the binding call there

[late rover]

No

[magic parcel]

So, would I initialize a variable for the currentPlayerHud ?

[magic parcel]

then pull from there to access the bind ?

thats where I am confused, i have no issues calling this in the other bind

[timber knoll]

The issue was with equippedWeapon

[magic parcel]

ah

[timber knoll]

No that won't fix it 😛

[magic parcel]

lmao sorry

seemed like a logical place

cause this is setting the variable

[timber knoll]

In your player blueprint, create the widget > if you already have a valid equipped weapon set the widget equipped weapon

[magic parcel]

hm.. let me think of how I might do that

[timber knoll]

Whenever you change equipped weapon > update the reference in the widget

[magic parcel]

the widget is already part of the hud

or the MAIN widget for the player ui

[timber knoll]

in your widget, whenever you try to access equipped weapon > check IsValid first

[magic parcel]

k ill try that out

see what happens

[timber knoll]

well you can still have a reference somehow in the player blueprint

[magic parcel]

yeah

[timber knoll]

also make sure to have an IsValid for the widget inside player blueprint 🙂

in fact pretty much any reference should be checked with IsValid

[magic parcel]

so you should always have an isValid?

in what case would you, not have a valid lol... seems odd

but okay

[timber knoll]

Mostly in edge cases, but building in safety is better than having runtime errors

[magic parcel]

very true

just different from the art world i guess

appreciate the "hand walking"

[timber knoll]

You can then instead, print a string saying: Oh hey you forgot a reference here

[magic parcel]

recently got some time on my hands so I am trying to learn the coding side of things

was toying with AI yesterday, pretty fun for the most part

[velvet dagger]

How can I make an actor smoothly move to a location and not just do a sudden snap to it?

[late rover]

Lerp

[echo salmon]

I was trying to find in unreal engine the X/Y axis values . So in X axis if you are moving to the right direction is negative -1 and on the left its +1 ?

[orchid grove]

VInterpTo with a timeline

Actually with a timeline you could blend vectors I don't remember if there's a node for that

[zealous fog]

This isn't so much to do with unreal engine as just how vectors work

But yes that's correct

[earnest tangle]

^well it is partially because different engines use different axes for directions

[tawdry surge]

@echo salmon Positive X is forward Positive Y is right

[native linden]

so, say i have an array

how do i make it so that on a button press, it selects 1 array up

so it goes 1, 2, 3 then back to 1

[pulsar rampart]

Guys i need some help when i made a multiplayer thing i can only control 1 player i tried it with another computer and tested it also 1 player only can control the charecter can anyone help plz?

[tawdry surge]

Index >=4, index = 1

[native linden]

that handles the "setting back to 1" part, but i need to know how to select next array with a button press

which array would be best for selecting something where it activates, i scroll through 10 options

[tawdry surge]

Add 1 each time you call the event

[native linden]

awesome, thank you :)

[tawdry surge]

That does the same thing less efficiently

[versed sun]

just keep it under 2 billion uses and you will be fine

[native linden]

2 billion? yeesh that's a bit low

jk, thanks so much for the help :))))

what's the ++ node?

[versed sun]

Increment Int

err

[native linden]

ah

legendary

[versed sun]

it adds 1 and sets it

[native linden]

ah

and the pink node with GET on it?

[pulsar rampart]

.

[versed sun]

thats how you get a value from your Array

[gentle urchin]

Use length of array as modulo for the new incremented value. Win win win

Int = (int + 1) % Array.length

Wrap is inclusive is it not ? So min of -1 would be invalid?

[harsh coral]

why can't I get this curve's float value?

[gentle urchin]

Its a timeline, not a curve

[harsh coral]

oh

how do i make a curve

[gentle urchin]

Isnt it a variable type?

Float curve or smth

[harsh coral]

thanks

[warped spindle]

So... I have some troubles with event dispatcher.
I made the bind from BP level to BP actor trough event dispatcher and i have a Bug.
If put the actor în level and try to call the event dispatcher and change a value from level to an actor IT works very well ,but If i Spawn the actor that call it doesn't happpen anymore.
What can i do?

[odd ember]

show code

[warped spindle]

This is where i bind the event dispatcher with the actor Superpower în level Bp

Here i call it

Here i Spawn the actor that will call the event once i touch it

Fireball actor that i Spawn it's the child bp to Superpower.
Event dispatcher are created in Superpower

[devout bane]

So I have character needing to walk on moving boat. When boat moves, the character does not stay with boat. What is best way to fix this?

[remote meteor]

can step on on the boat collision

[warped spindle]

Here is the code

[devout bane]

he can step on boat but when boat moves he does not stay with it

boat is on regular collision channels like floor

[odd ember]

that's a lot of spaghetti. most likely the reason it doesn't work is because you take values from one execution thread and use them in another

clear up your code so it's readable, save the values you need to local variables and test again

[trim matrix]

How can I duplicate and rename a template level in-game (for a level editor) ?

[versed sun]

does this work ? https://www.screencast.com/t/LIiPqXFufl

or not what you are looking for

[trim matrix]

I mean in-game.

As in Mario Maker for example.

[versed sun]

so same level, but the actors are spawned in procedurally ?

[trim matrix]

Yeah, you can change classes of child actors through a UI widget.

When you quit the level it's all back to 0, so it's good. But I need to save the level configuration by copying the level I guess (and store the selected classes somewhere I guess too).

[versed sun]

well... how I am doing it is with SaveGame, save all the actors location and other details in arrays

[flat scarab]

Is it possible to get the faces of a static mesh in blueprint?

[versed sun]

break ia hit result might work, never messed with it

[flat scarab]

Thanks!

[main lake]

Does anyone know how I can make the Tick() function execute 100 times per second ?

[dawn gazelle]

Run the game at 100FPS

[main lake]

No because I don't want that to be framerate dependant

[trim matrix]

So I wouldn't duplicate the level in fact ?

And I create a SaveGame instance for each level ?

I've just used SaveGame for options so far.

[main lake]

Whaaaat that sound complex

How you do that ?

[versed sun]

i think so, not sure if thats"Best" way, but it works

how many actors are you setting ?

[main lake]

that means if someone has a weaker pc he won't be able to run 100 fps ?

[icy dragon]

Why do you need to be that specific anyway?

[main lake]

Because I'm doing a timer and and my timer runs at a certain speed in the day and in another speed during the night (it's a 24h day/night cycle)

and using SetTimerInterval is it more precise ?

[icy dragon]

You don't need to be that precise for day night cycle.

[main lake]

*SetTimerByEvent

Here you can see my problem : #blueprint message

[icy dragon]

For crying out loud, I use Event Tick to update the game world time, and still have it in consistent length

[main lake]

For me I don't have a consistent length It's 10 sec off for the day and more than 40 sec Off for the night

it's seconds

[icy dragon]

Then do a check to reduce the speed at night

[trim matrix]

How do I create a new SaveGame with given arrays when I press a button in the UI then then ?

[main lake]

but someone suggested an approach using Tick() and run it 100 per second and I don't understand how to do that and why is it better than my approach

[icy dragon]

That's a shit suggestion.

[icy dragon]

You can use Tick, but why not use delta seconds?

[versed sun]

i can walk you thru min in a video call if you want

[main lake]

Could you check my problem above, to understand my problem please ?

I can't, Like my timer changes during the night, all of this is dependant on some values I enetered in some variables, and for instance if the variable night is smaller than the variable day, the timer will go faster during the night making it be sometimes less than 1 sec per iteration

[icy dragon]

Eh, it works on me through extensive battle testing, I got consistent 48 minutes / in game day, tested for 12 real time hours or so.

[trim matrix]

why not

[main lake]

Because I want my whole 24h In Game to be 15 IRL minutes (10 min for the day and 5 min for the night)

[icy dragon]

Fuck it, I'm going to open my project for crosschecking with my system

[main lake]

Here's my message from above and my code :

Does anyone know why my timer isn't perfect please ? Like My Starting_Night_Timer variable is at 23 (11PM) and Starting_Day_Timer is at 6 (6AM) and Day Duration variable is at 10 (IRL minutes) and Night Duration variable is at 5 (IRL min) and I used a timer in Windows to check if my timer is correct and it's not, like 10 min on the windows timer my game timer reached 22:50 (10:50 PM) instead of 23:00 (11 PM) so it's off by 10 sec in game somehow.

maybe the tickrate of the timer event isn't perfect ?
Any way to solve this and make it perfectly be at 11PM after 10 min ?

Here's my Code : https://blueprintue.com/blueprint/s0-g7rd9/

I'm not using floats in my code besides for calculating the ratio

it's not about the artistic part as I'm not doing that yet, I just need the night to go faster than the day (as the values are 10 and 5) but those values would be customizable

now I just need to display a 24h timer

I already succeed making it work besides the problem with 10 sec off for the day and 40 sec of at the end of night

like instead of being at 6:00 by 5 IRL minutes, when it's 5 min IRL it reached 6:40 somehow

I need to understand how to do your solutions

[icy dragon]

Pardon my astronomy, but isn't night shorter at times because of Earth rotation being skewed?

[odd ember]

astronomy*

astrology is horoscopes

[main lake]

Maybe but it's not why I have my night shorter, it's just for gameplay as night has less things to do in it and also to prevent a single game being 2h40

this part I don't understand how would you convert that to the 24 hours format with different values

Nope I can't

[odd ember]

but that would be too easy

[icy dragon]

FFS, let astronomy do its thing than artificially shortening the time.

I managed to prolong the daytime by rotating my sky actor, which has rotating sunlight from east to west.

[main lake]

I'm doing a game not an IRL reproduction of how time scales in real life, so I need to bend the rules for my game for gameplay purposed and to prevent having a single game being 2h40

Let me try the curve part

[remote meteor]

im pretty sure you can define how many real seconds is a single day in your game

and scale the whole in-game 24h from there

[main lake]

how ? 😮

[remote meteor]

🤔

[maiden wadi]

🍿

[remote meteor]

calculate

[main lake]

? 🤔

[remote meteor]

im just gonna put some suggestion and scoop 🤣

are we just trying to do something like UTCNow() but for "ingame time" instead?

i dint really read the whole thing

[odd ember]

I'm not trying anything. I don't have the mental stamina for this anymore

[maiden wadi]

This is an oddly complicated conversation for something that involves taking a 1,440 integer and getting a float from it based on a scale of how close it is to 1,440 / 2

[main lake]

I think that's what I'v done but I get some imprecisions

[icy dragon]

Hey you.

[main lake]

Hey ?

[icy dragon]

Yeah, you.
You wanna know how I do day night cycle?

[main lake]

Yeah ? 👀

[trim matrix]

Is there a 'get random reachable point ON radius' node (rather than IN radius)?

[remote meteor]

unfortunately no 😥
you can try looking into EQS for that

[maiden wadi]

Get random point in radius. Transform to point's local space, normalize, multiply by radius, transform back to world space.

[odd ember]

or get random unit vector * radius + location

[maiden wadi]

Yeah, CE's requires much less processing. 😄

[icy dragon]

It's pretty consistent, I got 48 minutes for each in game time, and you can scale how fast the day should pass.

I'll show you in a moment

[trim matrix]

ah yes. Get random unit vector should do the trick

Basically I want something to move randomly from point to point but always the same distance.

[remote meteor]

if you need to guarentee the point is reachable

you might need to do abit more stuff

[trim matrix]

You might have a point

[wintry maple]

It delays until the next frame.

[wispy pumice]

I was wrong again...I came back to it and figured out exactly what's going on thanks to a few other suggestions from different place....Just for the record the reason he is Unrotating the Velocity Vector by the Actor's Rotation is so that the Velocity values alway's stay oriented to that rotation. He does this so that if he's facing a different direction in the world the velocity will alway's come out the same...By default if your facing the X axis and stafe left to right then the values will show up in Y but if you Rotate 90 degrees and do it again the values will show up in X....by Unrotating it to the player's rotation the values will alway's print out as though you were facing forward along the X axis in the world.

It's basically orienting the velocity vector so that it faces the player's forward direction...but without changing the values

[native linden]

alright

[icy dragon]

@main lake Here's my in-game time update setup. Pretty simple.

And updating the sun light rotation. Note that I specifically use Set Relative Rotation as opposed to Set World Rotation.

[main lake]

Can you pause the timer ?

[icy dragon]

It happens on Event Tick, so you can add a branch before Update Time function to pause it temporarily.

[main lake]

And where should I put the detection when it's night timer to go faster ?

[remote meteor]

multiply time scale based on a curve evaluating from the current progress of the world seconds

[main lake]

I'm still confused on how to do the curve

[remote meteor]

oh not a timeline

[main lake]

then where can I create the curve ?

this ?

[remote meteor]

say you want second half of your day proceeds faster

you can create a curve like this

miscellaneous>curve>floatcurve

[main lake]

wich one ?

[remote meteor]

ref it in your bp

float curve since you only need a single float

[main lake]

what values should I put in the Curve float ?

[remote meteor]

based on the example above

something like this

so you can technically "accelerate" part of your day

[main lake]

But here where do I put the values

[remote meteor]

x axis will be 0~1

y axis will be the multiplier you want to apply to your time scale

to make the day faster

[unique falcon]

Is "Get World In Delta Seconds" same as Delta Seconds in the event tick?

[remote meteor]

yes

which are both framerate dependant

unless you modified your tick interval on the actor

then your tick event will return a different delta

[unique falcon]

Got it thanks

[main lake]

but I want the multiplayer to be through a variable ?

[icy dragon]

Yes, except World Delta Seconds puts into account time dilation (e.g. affected by slow motion)

[icy dragon]

Multiplayer? Really?

[remote meteor]

multiplyer*

well in a nutshell

you can do whatever you want

[main lake]

*multiplyer

[remote meteor]

the goal is to adjust the TimeScale variable in the example above

you can use any method that suits your needs

the curve way has a fixed intervals where parts of the day will be accelerated

you can always just make multiple curve if you want a different "profile" and change the curve variable

[main lake]

I have no clue what values to put in the Curve

[icy dragon]

At least with the example I showed above, it's the matter of controlling the Time Scale, which controls how fast in-game seconds are.

[remote meteor]

for example

this curve will make second half of your day pass twice as fast

[main lake]

so the x axis 0 to 1 is the % of the day ? And the y axis is the multiplier ?

[remote meteor]

yeah something like that

does it suit your needs?

lol i actually not sure what you exactly need

[main lake]

https://tenor.com/view/seriously-gif-23861497

Maybe this float track could solve my issue, but is it possible to fill the values of the track through blueprint ?

[icy dragon]

You can do modulo (%) to a day (which is 86400 seconds) and use the result to speed up time in certain point.

Of course the scale has to be larger than 0.

[remote meteor]

im following this example so yeah, eitherway works

[main lake]

Like I said before I need it to be customizable later (through some UMG buttons, and stuff like that)

[remote meteor]

sadly curve cant edit runtime atleast in bp

if you need like sliders to adjust

🤔 well that gets quite complicated

but before that, you can always predefine a few different curve asset

then your "ui buttons" can just swap the curve variable being used for the time evaluation

[sturdy herald]

interesting. Good u found out.

[main lake]

Is there a node being a mix of Math.Floor and Math.Ceil depending on the value if it's above 0.5 it ceils and below or equal 0.5 it floors ?

[remote meteor]

Round

[main lake]

Thank you

[icy dragon]

If you want to, you can have evil branches hack to adjust the range of the artificial time hastener.

[remote meteor]

but 0.5 will become 1.0

~0.4999 becomes 0.0

[main lake]

You're speaking chinese to me with those terms 🤔

[main lake]

yeah that's what I want 🙂

[remote meteor]

adjustception

😂

[icy dragon]

中国語は話せません。

[main lake]

Ah more understandable 👀

[remote meteor]

说华语吗？

[wispy pumice]

Yeah I'm still not sure exactly what's going on but Janmebows told me on his channel that it's rotating it by the inverse of a quaternion. I may have to look that up, but at least I have a general idea as to what is happening

[trim matrix]

is there a random exec in the unreal engine?

[remote meteor]

😂 突然间全部都会说华语了

[dawn gazelle]

Multigate with the "Random" option checked works.

[trim matrix]

ok thanks

[remote meteor]

not sure but is multigate randomize without replacement?

[dawn gazelle]

You do need to reset it each call otherwise it'll only call each output once.

So random int + switch may be a bit prettier to use.

[trim matrix]

@dawn gazellethe multigate worked perfectly, thank you very much

[tranquil abyss]

So im attempting to take the stuct in slot 1 of my inventory, and using the object reference create the weapon and put it in the hand of my character

[remote meteor]

oh no no no

you need to use the spawn actor node

[tranquil abyss]

for construct object?

[icy dragon]

Is your "weapon" directly inherits from UObject, as opposed to Actor?

[odd ember]

yes

anything that exists in the world is an actor

[tranquil abyss]

hmm

get actor something ig

lemme see

[remote meteor]

maybe you should use an actor or weapon class type in the structure instead of plain object

[dawn gazelle]

^

[remote meteor]

technically its workable by casting to it but

eh 🤷‍♂️ save yourself the trouble since weapons probably will have the same base class

[odd ember]

it's not because it doesn't spawn it in world

[remote meteor]

i mean you can cast the object class type to weapon

then you can use it on the spawn actor node

[tranquil abyss]

This is like the opposite of what i was told the other night

🤔

here is this for context

and this

[remote meteor]

i believe this type can be just your weapon base class

[odd ember]

well if you can find what you were told we can get to the bottom of this

[tranquil abyss]

its up in the chat and im probably remembering it incorrectly

[remote meteor]

personally i will separate up pickup items and the actual weapon since they dont have overlapping functionality dont mind me

[tranquil abyss]

ur talking to someone who has no clue how to do that

[odd ember]

data assets

[frozen spear]

Actors have locations...uobjects dont...if your weapon is nothing more than a data storage class that tell the character what mesh, damage, ect...you would set the mesh directly on the character otherwise it needs to inherit from an actor class

[dawn gazelle]

Here's what I came up with because I sometimes have fun trying to solve people's problems with constraints. This is a "time of day" that starts with the day starting at 0 (which is 6AM) and night starting at 600 seconds (11PM). There are 600 seconds of day time and 300 seconds of night time for a total 15 minute day/night cycle. The seconds elapsed are calculated back into a 24 hour format that is printed. It's probably a bit convoluted, and probably not the best way of doing it, but was fun to figure out 😛

https://blueprintue.com/blueprint/ors0pyib/

[odd ember]

transforms*

[frozen spear]

Yeah more precisely transforms...

There's nothing wrong with making a weapon data class... But all you'd be doing is pulling defaults off of it and setting them directly on the character

They won't exist in the world technically

[tranquil abyss]

Ik you all know what ur talking about but im so new to this engine ur speaking french

[remote meteor]

its ok 😂 we learn day by day

anyway for starters

you can try using weapon class type for the Weapon Class Ref variable

instead of object class type

then use the spawn actor node

then attach it to the character

[tranquil abyss]

I feel like I tried to use the parent weapon class but I could only end up spawning the parent weapon

I had this issue when spawning loot from dying ai

[remote meteor]

you can spawn its child too

if you have your other weapons class hierarchy setup correctly

like a base weapon class

then every other weapon childs from it

then using a base weapon class type should allow you to select all the childs too

[remote meteor]

see that class reference on the right

that one

[tranquil abyss]

instead of an object class reference

this would be a actor class ref

to that specific class

I think

[remote meteor]

choose this

[tranquil abyss]

and now

I can only select the sword or its childern

this makes much more senes

to do

[remote meteor]

class polymorphism🙏

[echo scaffold]

I need to create a system where a lot of options are stored: bools, ints, floats etc. But I want to use a shared struct to handle all the data and to save and load it. Would it be a terrible idea to have a Key(fname) and Value(string) and use string conversions to translate my strings into the ints, floats, bools that they will need to be set as?

[remote meteor]

its not too bad

but managing the keys might get abit messy when you have too many

the find nodes 😂

[echo scaffold]

Idea is that it will all be automated so I shouldn't have to do any managing, or whatcha mean?

Main concern is the idea of using strings for floats, at least for the storage and save / load

[odd ember]

just fyi structs are generally meant to be read only in BP

[echo scaffold]

Oh rly? I use "Set members in struct" node all the time

is it a performance concern?

[odd ember]

nothing to do with performance, structs are just not well equipped to handle dynamic data

... in BP

[echo scaffold]

Oh, I had no idea and have had no issues with using them in such a way, you got any information on problems that could manifest?

[odd ember]

for where I need to use structs to persist data I have wrapper functions that do this for me in CPP

[odd ember]

your data could end up not written

especially if it's a pointer

[remote meteor]

more like you just need to know what you are doing 🤷‍♂️

whether the struct you are using is a copy or ref of it

[odd ember]

structs are always copies in BP

[remote meteor]

you can pass struct as ref

[odd ember]

yeah it's still a copy

[remote meteor]

but you cant return struct as ref it is

[tranquil abyss]

So before I was comparing the class object reference Now I need that but for the actor, Will this node still work

im guessing no

[remote meteor]

yes

it still works

[odd ember]

I mean it will work in principle, but being that we cannot see the full extent of the code you may have some wonky logic that we can't account for

[tranquil abyss]

Hmm, So it looks like that path is still the same in the data table

so it just storing an actor now and not an object

[remote meteor]

an actor is also an object

but with transform

thats about it mainly

you can only spawn something with a transform

spawn being the keyword

you can construct objects

but they technically doesnt exist in the world

[tranquil abyss]

So getting the transformation need to be the Trans of the stored actor

[remote meteor]

you can just break the spawn tranform node since you will be attaching it later

[odd ember]

the spawn transforms needs to be where you want to put the actor

[remote meteor]

and leave it default

[echo scaffold]

This is the current concept, I'm on the edge of scrapping it so if anyone is like "that sucks" I'll be happy to listen. The Widget Entry Type defines whether a checkbox, slider, etc is created and that is the thing that will determine what data type the string val will be converted to. The Key might be "visibility" and the Value might be "true" and the Widget Entry Type would be a Checkbox so it knows to treat it as a bool

Uh key should be fname there m'bad

not text

but dunno if that makes it better 🥲

[odd ember]

I have no idea what's going on here

[remote meteor]

uhm

i would do it

[echo scaffold]

I'm gonna have a ton of variables which are different data but i wanna store them all as an array of structs

Yeah for sure i will be careful.

[main lake]

There are some nodes I don't understand like "Map Range Unclamped/ Clamped", "F Wrap", and some of the logic 🤔

[echo scaffold]

Rather than a set members in struct node?

[odd ember]

the best way of doing what you want to do is to have something like a data object

a data asset perhaps

[remote meteor]

something like this

[echo scaffold]

While i deffo believe you and defer to anyone's knowledge in here, I've not had any issue using them in a practical sense and have created games with systems using them, in character creation systems for example

[odd ember]

there is is just no reason to risk stuff not working

[echo scaffold]

Deffo happy to hear alt methods

[odd ember]

.

[remote meteor]

the only problem that bp struct gives me is

[echo scaffold]

Ahh right, yeah everything remains in BP, i wonder

[remote meteor]

when i edit the struct

the other bp that ref that bp will get fucked

when using a source control

[odd ember]

thatsthepoint.gif

[remote meteor]

well i found a way to go around that

so not a problem anymore

[odd ember]

right but the fact that you have to find a solution to a problem that shouldn't exist should tell you it isn't an ideal situation

[remote meteor]

i agree

also cpp struct is dope af

they can have functions

https://tenor.com/view/pepe-the-frog-pepe-excited-gif-15591079

data table can export and reimport if you have the same name and value types

[odd ember]

the only pure BP structs I have are in a data table made to be read only

[remote meteor]

you gotta relink a bunch of the break/make struct thats gonna take some time

[odd ember]

all dynamic struct creation is handled in cpp

[safe iron]

hey guys, I need a simple help with a thing
To make my weapon inventory, I have made a simple map of Integers to Child Actor components, and I have made this piece of logic to check whether the actor assigned to that slot is or not an actor Slot_Empty, and I have used the != node to make sure the wielded actor is not a Slot_Empty, but it does not work for some reason, it always returns true even if the equipped actor is Slot_Empty, what could I do to fix this?

[odd ember]

Child Actor components

there's your problem

[remote meteor]

was gonna say, try not to use child actor component

[glass magnet]

heyyyy cuties

[remote meteor]

then probably try to figure out whether if every child actor is actually Slot_Empty in the data?

[safe iron]

Oh Ok, I'll try, thanks

[glass magnet]

So I have a question about finding the vector between a target and a player. Im trying to set that up and would i want to turn it into a condition? or is there a different way to go about it

rn i get unit direction then turn it into a condition to see if the distance is greater than the attack range float

this is how i had put it

[remote meteor]

distance to 2D

or you can use vector length off the unit direction

then directly compare it to the attack range

[glass magnet]

ah ok

[glass magnet]

well just 1 question before i do that is the branch the correct way to do it or

[remote meteor]

wait actually

just use distance to 2D

😂

[glass magnet]

do i do distance to 2 straight from actor location?

[remote meteor]

from the actor

[dawn gazelle]

Map Range translates values from one set to another... In this example, it is defined that the input range between 0-600 which will translate to 6 to 23. So when the "Value" is at 0, 6 will be output. When it's at 600, 23 would be output. The node will automatically calculate all other values inbetween.
Clamped/Unclamped just determines if the values will proceed outside the bounds of the ranges. So if I tried to input 700 into this Map Range Clamped, it'll only ever output 23. If it was unclamped, it would try to figure out what the 700 would translate to based on the scale of the range (it would be a value higher than 23).

The Wrap node takes a value range and anything above or below the range will translate to be within the range. So if the range is between 1-10 and I input an 11, the expected output would be 1. I needed to use the wrap as we want to know what hour it is when we go passed hour 23, which can then be 0 (midnight), 1, 2, 3, 4 or 5.

[glass magnet]

is the way i have the boolean set up correct or

[remote meteor]

whats the intention?

if within attack range then attack, else move closer?

[glass magnet]

yeah

[pulsar rampart]

How can i replicate a whole animation blueprint and how can i replicate the weapon here?
Image

[glass magnet]

if the distance is greater than move if it is not then attack

[remote meteor]

that could work but to make it nicer like actual moba, you might need more checkings

[glass magnet]

ofc ofc

you knew it was a moba

[main lake]

But your code looks so complex x)

[odd ember]

distance squared is also better than distance

cheaper and more accurate

[remote meteor]

and that

try to use squared if possible

you can always just square the attack range variable

reason being

[odd ember]

square root is costly

[remote meteor]

square root in the distance formula is very costy

[odd ember]

not just in the distance formula

in general it's a costly operation for the cpu

[remote meteor]

you can try looking up how square root is calculated in cpu 😂 its quite funny

[thin panther]

What's this I hear about BP structs being bad, the only issue i've ever had is adding new data types to them, and then the editor crashes if I don't remove the old default values. They seem to work fine for everything else. Is it going to be a lot of work to convert to c++ structs, and if so, what are the benefits if I am currently only having a minor inconvenience at best

[remote meteor]

yeah thats the part that will struggle alot if you dont know how to handle it

sucks it has to be that first time learning that it behaves that way

[odd ember]

if you can treat BP structs as read only you minimize the amount of problems you'll have

[thin panther]

I mean the issue isn't c++, I can do c++, might take a short while to get used to Unreal's API, but i know the language

but, why should i treat them as read only, I have yet to see an issue with not treating them as read only

[odd ember]

the main issue with structs in BP is that they are all copies

so writing to a struct means you're writing to a copy

[thin panther]

ah so it takes up a lot more memory

[odd ember]

no

[remote meteor]

tldr you just need to know what you are doing

🤷‍♂️

i would for my future projects

[thin panther]

i mean I do know the difference between writing to copies and references, and my methods seem to be working, so is there still any reason for switching

[remote meteor]

😂

keep it unless you feel adventurous

[thin panther]

I mean I'm prepared to if it saves some miracle amount of memory usage, or will stop actual problems down the line, but every resource i have seen about using structs, doesn't point out any issues with BP structs

hell the documentation doesn't even mention that

[odd ember]

just because you haven't seen the issues doesn't mean they don't exist

[remote meteor]

theres not alot of problems, the copy issue will still happens even if you use a cpp struct, its how just how structs are handled inside bp, just keep in mind when you edit a bp struct, the other bp that ref it will get fucked in someway

my solution to that is

[odd ember]

the documentation doesn't mention that we shouldn't use child actor components either but common logic dictates otherwise

[thin panther]

no but im saying nearly everywhere fails to mention them, and of the issues ive heard, its just that there are some, but doesnt say what they are

[remote meteor]

to have a source control to keep no uncommitted change before you edit the stuct
edits it
discard everything else that got changed because of the struct edit, except the struct

then viola problem solved

[odd ember]

the main thing is: structs in BP are copies. literally all the issues with them stem from this one weird fact

[thin panther]

yes that's the root problem, but i still want to know what issues they can cause, cause right now i dont know if the issues are minor inconveniences or biiig problems, because i need to gauge if it is worth rewriting all of them

cause that is going to be a pin

thats why i ask what issue they cause

[odd ember]

your data might not be written

[remote meteor]

that is not a valid reason to me because its user error 😂

2 things from me

[odd ember]

it could happen regardless of user error

[magic parcel]

is there anyway to find the gameinstance being applied? When I go to the project settings and click the find arrow, it doesnt take me anywhere. I assume its a UE internal one hidden some place, but figured I would ask

[glass magnet]

is this the correct way to do it

[remote meteor]

editing the struct
and having too many nested bp struct and editing it

[thin panther]

i mean a lot of issues can stem from poor handling of them, but some issues can just stem from them being bad,

[odd ember]

editing a struct == writing to a struct

[versed sun]

I think you need to make a new one and set it Project settings>Map and modes

[remote meteor]

edit as in

adding and changing variable types in the editor

[magic parcel]

I was about to do that, but wasnt sure. Thanks

[odd ember]

yeah that's writing to a struct

that's what we're talking about

when we say writing data

[thin panther]

and if the majority of the issues stem from the latter, then it would be worth switching, but if its from poor handling then id say the headache would be my own fault

[remote meteor]

this

[thin panther]

would making a c++ struct solve my issue of editor crashes when i add or remove members to an already populated struct

didnt think so

[magic parcel]

@versed sun yep, thanks, got it!!

[odd ember]

well you know best where your pain thresholds are. if you are willing to put up with risky behaviors, do nothing

[magic parcel]

Can you maybe guide me in a quick question then. Being a noob coder (primarily an artist) what is the reason a person would make the STATS of a player in the game instance rather than a component that is then attached to the player?

[thin panther]

id like to say my thrershold is quite high cause i have to work with SQL atm lmao

[magic parcel]

seems like it woudl be smarter to create the code with components so that each stat could easily be applied to different things/objects

[odd ember]

there isn't a reason to make them in game instance

[magic parcel]

@odd ember interesting.... the tutorial i saw has me doing that

seemed odd to me

other than to be saved

[odd ember]

people who make tutorials, especially on youtube, often don't know what the f they are talking about

[magic parcel]

yeah, well those are the people I have to learn from 😛

blind leading the blind

hence why I am here asking! 🙂

[thin panther]

i am unfamiliar with hot reloading, what is that?

[magic parcel]

trying to be a realCoder, like the rest of you 😉

[thin panther]

no idea why it crashes, i never noted the crash stack

[odd ember]

it's when you want to corrupt your project for free

[thin panther]

i just got used to it lmao

oo sounds fun

[magic parcel]

hot reloading is inline loads of your code, never works

i thought that was only during C++

[thin panther]

so if i wanna work with unreal, compile my scripts with the editor closed?

[magic parcel]

you cant hotreload with BP, can you?

[odd ember]

that takes years of work. I would recommend studying general programming principles within the OOP paradigm

rather than listening to youtube tutorials

[thin panther]

dont think so, thats probably why ive never heard of it

[magic parcel]

@odd ember been doing that 😛 i actually know PHP, (can read C++), C#, python

most of them are for making my art do things 😛

[thin panther]

honestly unreal bp used to be so much more confusing until i went away and learned c++ for a while

[flat scarab]

Hi. I am trying to get a slider value in my level blueprint but print string keeps reporting 0 even though I am changing the value. If I plug print string to the UMG BP then I can see the values correctly.

[odd ember]

well why are you asking us for help then?

[magic parcel]

...

[odd ember]

why are you watching youtube tutorials?

[remote meteor]

if you have a fast computer, probably should just close the editor before compiling c++ code

[magic parcel]

just because I understand object oriented programming doesnt mean I know how UE4 works 😛

where the nodes go

how they interconnect

what they called a node

[odd ember]

I can't count how many people come in here saying "I know xyz languages" in the same sentence as they are asking for what "inheritance" is

[magic parcel]

structure of the data placement

[remote meteor]

i notice when its about function symbols

[magic parcel]

Sure, but that wasnt what I did

[remote meteor]

the chance of getting fucked by hot reload is pretty high

else its just fine

😂

[odd ember]

if you know of OOP then you should be able to answer your original question. what does OOP say about object responsibility?

[remote meteor]

whatever tho

people are just being skeptical

[pulsar rampart]

.

[magic parcel]

sighs the question was posed due to me trying to understand if there was something I was missing

why would there be a tutorial by a guy who is fairly popular

doing it the wrong way

[odd ember]

because people don't know their stuff

[remote meteor]

game instance persist even when level gets changed

[odd ember]

I can guarantee you most of the youtubers who do blueprint have never understood the core principles of OOP

[thin panther]

the people watching the tutorial do not know if someone is doing it wrong, because theyre trying to learn

[magic parcel]

That was his reason for doing it

for sure

[remote meteor]

i would imagine he want to persist the stat between lobby and levels

else

there is literally no reason to place it there

maybe for local save game

[magic parcel]

it didnt make sense to what I already have learned before. which is why I cam here asking

[remote meteor]

your answer would be

no particular reason

[magic parcel]

the point of a chat system, forum, etc... is to collaborate and express ideas 😛

why are coders so hostile 😛

[magic parcel]

thank you ❤️

somebody asks me about rigs, weighting, animations, etc... im not saying "go spend 50 hrs learning animation basics and fundamentals".

[odd ember]

well you said you knew programming etc.

[remote meteor]

knowing programming

and understanding the framework of unreal

is like

2 different world

lol

[magic parcel]

i also predicated that statement with a very clear "I am learning"

[odd ember]

obviously

but unreal does a pretty good job at showing how its data persists in docs

that's about the only thing it does OK

[magic parcel]

so you want me to read the docs?

and avoid using the chat system?

got it

[odd ember]

I would expect you to have read the docs

before asking

[magic parcel]

human interaction, 0, speak with the robots!

that is a coder mindset, for sure

[odd ember]

doing a great job at fostering good communication here 👍

[thin panther]

If I' making a C++ struct, i imagine it is this line that exposes each member to blueprints

UPROPERTY(EditAnywhere, BlueprintReadWrite)

[magic parcel]

interesting point

[odd ember]

yes but ideally you should be looking to make wrapper functions in cpp (static functions, for instance) that handle struct data changes

[remote meteor]

yea the specifiers

[magic parcel]

i thought coding was about efficiency. The most efficient use of time would be to speak with a person who has already parsed the data and knows the direct route to the answer.

[thin panther]

so you mean like make my own blueprint node similar to the set member in struct node

[odd ember]

some answers require prerequisite information

so in order to not turn things into a 2 hour presentation

you may be given homework

[magic parcel]

very true, but there is no contractual obligation to actually spend time answering. I half expected it to be ignored.

[remote meteor]

asking people here probably will point you to the right direction, rather than giving the answer straight unless i feel the context is way too hard for the asker

[odd ember]

for instance. I don't know your use case in particular

(that was a yes)

[magic parcel]

Meh, I feel there is a fundamental difference in the expectation of usecase here. 😛

[remote meteor]

the idea is to use as less bp nodes call as possible

[magic parcel]

in any case, thanks for the answers

and discussion

[thin panther]

Is there any reason why using the default functions isnt great for that?

[odd ember]

I wasn't joking when I said go read up on fundamental programming principles. you'll be better off in the long run if you do