blueprint

[regal basalt]

this is the Cue :

[tidal swallow]

Hello guys ! Can you help me with a unreal task ? I'm not noob , actually i'm experienced 3d artist, but this blueprint programming thing is VERY hard for me =((( I have a cube mesh, i want to put 10 copies of that cube into level and have them automatically numbered and somewhow display each cube number somewhere on the mesh . thank you !

[regal basalt]

this is the way I call theses functions :

Thanks a lot for the help !

[icy dragon]

First step is to create one numbered cube, have a function to create static mesh component and a text renderer component (or 3D text component). Once you get it working, put the function in a For loop, with each index offsetting the transforms.

[haughty nymph]

where i dont can find

[maiden wadi]

https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Physics/Collision/Overview/

[tidal swallow]

Thank you very much for directions ! Now it's clear for me that i have to hire a programmer 😆 🥲

[golden frigate]

anyone know how to spawn a geometry collection and apply a transform to it? was trying to update the collection mesh but you need a geometry collection object not geometry collection component object

[unreal moss]

anyone know how to get the mouse position on the screen relative to the actual screen size in BP? for some reason neither Get Mouse Position On Viewport nor Get Mouse Position Scaled By DPI seem to work, when i go full screen with a resolution of 1920x1080, the mouse X goes up to 2040

[maiden wadi]

That sounds normal in some cases. What is this for?

[unreal moss]

well, and i'm realizing now that this is probably a super inefficient way of doing it, but i was trying to calculate the edges of the screen to pan the camera back and forth with the mouse, so i was taking the viewport size and multiplying it by 0.02 and .98

but the number that was coming out of .98 of the viewport size is like.. in the middle of the screen

instead of the far right edge

i'm trying to get the actual boundaries of the window itself, and then the mouse position in that window, but it's not even close to accurate, especially when the window is resized. i'm not clear on why the viewport X size would be 2040 if my resolution is 1980

or i guess why the mouse X would be able to go to 2040

[maiden wadi]

@unreal mossHmm. It's difficult to explain. It's just the way that Unreal's viewport handles scaling. It's rather annoying. Quite honestly I rarely rely on that. I would personally handle this in a widget. You can get much more precise values by converting platform mouse location to local space, and then back to viewport space. It's tedious but a static function helps with it.

Pixel Position here should be much clearer here for you in a UserWidget if you create and add this directly to the viewport.

You could compare this to GetViewportSize for instance to get your mouse location stuff.

[fluid rover]

Anyone know the best way to add a pre-loaded array of strings to a GameInstance? I'm trying to set things up so that I can call on the array with a Name, then get a location variable back.

Would I have to set the array on Event BeginPlay each time? Or is there a better way?

[unreal moss]

@maiden wadi alright, thanks. yeah halfway through it hooking up like 80 things to event tick i decided maybe widgets would work better anyway. i just get fixated on trying to understand what's going wrong with stuff

[maiden wadi]

@unreal moss Something like this. Functions like this are so much cleaner in C++. 😄 Note that X and Y are slightly different in that the 1 and -1 are inverted. Y has to be inverted so that the top of the screen returns +1 and bottom returns -1.

In my case for example I could convert this from a Vector2D to a Vector, and use it as a Movement Input for my camera pawn.

<@&213101288538374145>

[haughty nymph]

thanks

[hearty sand]

how do i modify the output of a node under certain conditions? I want to multiply the value of InputAxis MoveForward by 0.5 if its less than 0 (slower backstepping) but I can't seem to figure out how to do such a simple thing in blueprints lol

[maiden wadi]

If you're using InputAxis events, just check if Axis value is < 0, select float for the Scale value. 1 for false, 0.5 for true.

[brazen merlin]

even easier, change it here

[maiden wadi]

Maybe. But that's going to cause problems if you have multiple possessable pawns.

Best to do it on the pawn that has the slow reversing functionality.

[brazen merlin]

this was not specified in the question

[hearty sand]

sorry im a huge blueprint newb. this is pretty much the root of my question: how do i set the scale value to 0.5 when the float < float node only returns a bool? is there another node i gotta use to return 1 or 0.5 based on a bool input?

i'll eventually wrap my head around this lol

[hearty sand]

select float! thats what i was missing

thanks!

[brazen merlin]

gotcha

[crimson saddle]

I have a child actor in one of my other actors and I want the parent to call a function whenever one of the child's functions are called. I feel like there was a way to do this with like binding events or something but i cant remember what it was.

[haughty nymph]

my zombie character dont want to die and i dont no what the problem is

he dont say hello when i hit the ai

and nothing work

[gentle urchin]

Wrong collision settings? Not blocking? Not generating hit events?

[tight schooner]

Event Dispatcher?

[crimson saddle]

yep just figured it out. That's what I need!

[vocal bobcat]

Can you not have a map of arrays? I have a modular character which i populate with multiple meshes - Torso (shirt1, shirt2, shirt3), Legs (pants1, shorts1) etc. I then have multiple materials per mesh - so shirt1 has shirt1_mat1, shirt1_mat2, etc..

What is the best way to store this? I already have arrays with soft references to the meshes, but I want to define materials which are compatible for each mesh. Having another array of materials per mesh seems like the wrong way to do it.

[haughty nymph]

I do that

[high ocean]

Any idea on how to generalize this? I'll need this check 6 times in various places, and I just can't figure out how to generalize it:

I have a skill which diverts damage to another unit. The problem is that if they defend each-other, it obviously goes into an infinite loop. Atm, max units are 6, but there has to be a way of generalizing it for n units.

[brazen merlin]

an array it seems

how are you getting these "defenders" seems like its the same one?

[high ocean]

@brazen merlinThe defender can be any other unit that has the defend skill. RN I'm just going to filter the units with the skill and check self against each of those unit's defenders... I don't see any other way atm 🤷‍♂️

Any better/cleaner ideas? (w/o cpp)

[brazen merlin]

so how are you getting defenders?

get actors of class?

are they stored at some point when they are spawned?

atm, it sounds like the first defender can take the effect, then the second, and then potentionally the first because all that's being checked for if it is not itself vs effecting each one that has it evenly

[high ocean]

@brazen merlinSo, from top to bottom:

1. I can get the defenders however I want, I have them stored in an array
2. Not using (never) get actors of class - I try avoiding that node at all costs.
3. Yes
4. The checks are being run when damage is received by the "self" actor. So I don't need to check and see if the others aren't defending each-other to avoid inf loops, they will make the check each when they receive the damage (in case of AOE for example, which is the only way to have "actively taking damage" more than one unit).

it's turn-based btw (which simplifies things by quite a bit)

[brazen merlin]

Is it only in an aoe case or does this ability transfer to near by even if the attack is directly at them?

[high ocean]

@brazen merlinNo, if the ability is directed at the defender, it will go through normally:

[brazen merlin]

ok so AoE only essentially

[high ocean]

the exec comes from the "Apply Damage" function

so damage dealt - run this (and other similar effect checks) then decide who gets the final damage.

[brazen merlin]

?

[high ocean]

AOE basically calls this code on all it's targets

Heh, it's based on a targetting system, not collisions

[brazen merlin]

ah ok, was gunna ask, so it has to work from the array you have

[high ocean]

ye, all of it works with a targetting system, based on cells+cell occupants

[high ocean]

chose this over collisions for easier "smarter" AI

Yep, it's basically my solution as well. I thought there was another - idk, more straightforward way.
@brazen merlin

[brazen merlin]

this seems more straightforward than the initial spaghetti 😛

[high ocean]

I know, but idk, sometimes I'm dumb like that lol 😆 🤦‍♂️

thanks for ur time man! 🙂

[brazen merlin]

sure thing

[high ocean]

I rly should just learn the freaking GAS and be done with fiddling with my own ability/skills system - so hard to generalize, have freedom & not get ran over by bugs every 2 clicks 😛

[brazen merlin]

inventing our own functions can take just as much time to learn the capabilities of pre-existing systems

[high ocean]

@brazen merlinFair enough. So making my own is better then since I also learn a truckload 😄

[brazen merlin]

that's a win-win. Can't always do the correct thing in every facet of a game's design, that's why post-mortems are helpful; a reflection on what worked and what didn't. Technology advances, new systems and methods become available -- the next game you make can utilize that learned knowledge. For now, don't take steps back unless you can't move forward.

[wheat herald]

How can I implement a timer in an actor bp that starts at 0 sec, and freezes with a condition I decide

Not a widget, just a "backend" timer, and when the condition is true, then it freezes the time and prints it

[brazen merlin]

a timer of 0 essentially doesnt run

use tick and a branch

[icy dragon]

Timer as in stopwatch timers?

[wheat herald]

Yea like a stopwatch timer, not a countdown

[brazen merlin]

may i refer you to my most used screenshot

[icy dragon]

Okay, so it's the matter of adding float variable with delta second, but with branch before it

[brazen merlin]

hang on, this one has pause

[floral drum]

any one able to help me out here?

been working on using control rig to create gun recoil. but I cant seem to get it so show in game.

I get this error

Blueprint Runtime Error: "Accessed None trying to read property As Ue 4ASP Character". Blueprint: AK47CRA Function: Execute Ubergraph AK47CRA Graph: EventGraph Node: Set LASTSHOT

[icy dragon]

The getter below still had null pointer, so I think Event BP Begin Play don't work

[floral drum]

Im sorry what do you mean by null pointer?

@icy dragon

[icy dragon]

In (lesser) laymen's terms, the object reference variable refers to nothing

[midnight yoke]

Im trying to make a lighting effect and epically failing, looking to get some input. Suppose you generate a landscape, paint down a path. Now the player is walking that path. I am trying to make it pitch black no visibility anywhere but where they have walked. Any ideas?

[zealous fog]

I would look into how to do a fog of war

Seems thats what youre trying to achieve

[valid bolt]

hi! ive been trying to make an aim offset and it worked out pretty fine especially in the aim offset but when put in game my character just twists and becomes huge and none of my other animations show pls help?

[cold cobalt]

Is there a way to trigger a specific key being pressed via a blueprint node?

Like allowing a button widget to be the equivalent of pressing the 1 key on PC.

[gusty cypress]

Problem with UE4? I've been trying to get a float value rounded to .000 accuracy but sometimes it goes beyond that, I ended up trying everything EVEN FORCE rounding it twice! and it still didnt work

Returned print (ignore bottom 2 lines)

[zealous fog]

Clamping is not rounding it just means the value can't exceed th min or max

[gusty cypress]

Yet they do exceed the min value

[zealous fog]

32.26 doesn't exceed 99999

[gusty cypress]

oh wait duh youre right

[zealous fog]

And it's more than 0.001

I dont know ow how the totext works

But my guess it's also not working how you think it is

[gusty cypress]

but shoundnt the bottom of totext work it says max fractional digits 3

This was my reference

https://answers.unrealengine.com/questions/94901/how-can-i-set-float-precision.html

[zealous fog]

You could multiple with 1000

Floor it

Change to float

Divide it again

[gusty cypress]

so youre saying... float --> x1000 --> truncate (to int) --> /1000?

[zealous fog]

No use the floor node

It will change the float to an integer but round it to the lowest number

Or is that the same as truncating

Not sure

But yeah tou get the gist of it

[gusty cypress]

Ill lyk how it goes

[zealous fog]

After floor

-> integer to float -> divide by 1000

[zealous fog]

Also I might have miscounted maybe it needs to be 10.000 but I'm tired you can check lol

That's correct yes

[dawn gazelle]

The reason you're likely having a problem is that floats aren't necessarily accurate. You can't always get exactly the value you want out of them 32.261002 might be the closest one can get to 32.261....
If you make this node, you literally cannot type in 32.261 it gets set to 32.261002

'

[gusty cypress]

woah woah

Guessing that would be a better method than mentioned before

But I would have to set the accuracy of the value entering that anyway so maybe I should just use the first method

Also (My float comes from a get game time in seconds controlled by a event tick)

somehow BOTH methods together did not work

[dawn gazelle]

Doesn't matter. The float variables are only 4 bytes, and those 4 bytes have to represent all possible numbers and fractions from -10385013768181514240.0 to 10385013768181514240.0 --- you're going to run into accuracy issues of floats in between there.

[dawn gazelle]

The "literal float node" is not needed.

It's just a means of declaring a value in blueprints that can be used in multiple places.

[zealous fog]

You're not printing that part as a string

Sp you aren't testing if the math is working

You might be setting the value again later

[gusty cypress]

the missing nodes are just setting it to string

Also I tried again with make literal float removed and it didnt work

works like 90% of time

[dawn gazelle]

I never said to use it.... if you read what I said, the issue is due to the accuracy of floating point numbers.

[zealous fog]

Shouldn't be because of the math formula

Oh wait

I get it

[gusty cypress]

Is the solution to always store as int?

[dawn gazelle]

No. You literally cannot type in 32.261 into a "Make Literal Float" node. It automatically calculates it as 32.261002

[zealous fog]

It can't ever be those floats

[dawn gazelle]

Right

Does it matter exactly how accurate those numbers are really? Like, thousandths of seconds is pretty tight.

You can store whatever the value is, and use the ToText node to mostly accurately display the number stored.

[zealous fog]

You could change it into a string, set an array, and forcibly remove the last few digits but that seems like a lot of work

[gusty cypress]

The accuracy does not really matter I just need it consistent for math im doing. This is causing an issue: I have split times for a level and final level time. The split times are lets say 1.0004 and 1.0003 so the user then sees 1.000 and 1.000 and then the final level time would be rounded up and say 1.001 so it makes no sense

I just need a close .000 value that I can use for math so its not rounding differently

[dawn gazelle]

So that's the thing, you can round those values up, but don't expect it to be exactly 1.001. It may be 1.001003 for example.

[gusty cypress]

I'm fine with hidden values like .000003 I just want the presented values to add up correctly

[brazen merlin]

yes, you can bind the widget to the key press event, probably in the controller

[dawn gazelle]

That's hard to guarantee with floating points. So then you would need to split up the numbers like Dean was showing you, but not recombine them into a float.

[gusty cypress]

keep them as an int?

[zealous fog]

With 2 decimals after the comma instead of 3, would this problem be fixed?

Are there anough floats to cover that

[brazen merlin]

yes

[dawn gazelle]

Not sure exactly what you mean, but if you type in 32.26 you get 32.259998 out.

[zealous fog]

Ah ok

[gusty cypress]

I'll try to keep them as an int, I'll try float --> x1000 --> floor int --> format the int to text so IT seems I divided by 1000

[dawn gazelle]

Probably better thing to do would be to use timespan/datetime variables instead of floats.

[zealous fog]

Yeah just put a . in the 4th to last spot

And it will look like you have decimals

[gusty cypress]

wdym timespan/datetime?

[gusty cypress]

thats what I was thinking idc about that much accuracy just want it to appear accurate

[gusty cypress]

lemme try I'll share my results

[dawn gazelle]

I think not 100% sure, but it's hard to do if you're going to be messing with the math on float values since those values may not necessarily add up correctly.

Example:

And these values should be able to be added together to get a correct total since they're effectively stored as ints.

[gusty cypress]

I'll try that

[gusty cypress]

did you use timespan datetime or both?

[dawn gazelle]

Datetime. The output from the subtraction is a timespan.

DateTime - DateTime = Timespan

[gusty cypress]

Is the datetime your subtracting from the date time the same or different variable?

[brazen merlin]

Time Start is a Timespan Date Time

Now is Date Time

my bad, its broken to a timespan result

[gusty cypress]

Also how is "now" setting the datetime?

[dawn gazelle]

"Now" refers to the current time. So in my example, the BeginPlay stores the current time. When I press page up, it's getting the time at that current time.

[brazen merlin]

search Now, it will come up under DateTime

[gusty cypress]

that returns the local date and time on my PC is there anyway I can set it using a float since Its an ingame level timer

[brazen merlin]

so using a timer?

[gusty cypress]

yes

[dawn gazelle]

Does it really matter? I mean, when you start the timer, you're saving a reference to the moment (on your local PC) that you started. When you finish, you can store the moment (on your local PC) that you finished . Subtracting these two values gives you the timespan which is agnostic to what PC.

[gusty cypress]

I didn't think of it like that, your correct

Would I just have to hope people don’t start the time right before daylight savings

[dawn gazelle]

Oh good point

[brazen merlin]

lol

[dawn gazelle]

Then you can use UTCNow

(I think!)

[brazen merlin]

if its always off of pc time, wouldnt that update accordingly?

[gusty cypress]

That’s what I meant, if they started the timer 1 minute before daylight savings it would result in a huge negative time

Actually nvm “The switch to daylight saving time does not affect UTC. It refers to time on the zero or Greenwich meridian, which is not adjusted to reflect changes either to or from Daylight Saving Time.”

[vital aspen]

when you use a inventory component. can you use that same component for other things other then the player. Like for a Chest or a Stove.

[brazen merlin]

i think that depends on the logic

does it reference anything specific as an inventory that wouldnt work for other objects?

such as Cast to Player vs Cast to Actor or something

[vital aspen]

Yes, it does. I think. It does handle the players and Equipment

[tawdry surge]

Would be a bad component if you can't..
Being able to attach logic to various assets is kinda the point

[brazen merlin]

that's the OOP idea, but it doesn't sound generic enough to do so

[vital aspen]

It's the Action RPG Inventory System from the market place.

[brazen merlin]

i know not

[vital aspen]

yes, I know. It's no longer support and the help for it is gone.

I would have to make an Inventory Component for each object or make a Inventory Component that can be used for anything. And one ever see a Inventory Tutorial Like this.

[brazen merlin]

id figure its possible to make it generic enough

might need rework though

or else, yeah, duplicate the comp class for each one and just change it

[vital aspen]

I thought so.

[brazen merlin]

that might give you insight into how to make it generically

[vital aspen]

I wish my stills were better then they are or I would. The biggest issue I have is under standing Inventory systems

[brazen merlin]

nah, they're there, i dont have an easy time with them either

[dawn gazelle]

There was a tutorial series that used a component and structures to contain the inventory...
https://www.youtube.com/watch?v=yxqSkFNAzE0

[vital aspen]

Thanks I tried this Inventory over a year ago. and I never could get it to work. The the dev didn't have the time to help.

[faint pasture]

You don't need a tutorial, just make a struct S_Item and a component C_Inventory and take it from there.

You will learn 100x faster just struggle bussing your way through it on your own and only looking up specifics if you get stuck.

[tawdry surge]

Lessons not learned in blood are soon forgotten

[mortal cradle]

UE4 documentation recommends using async save game to slot for larger amounts of data but what is considered larger amounts of data and is it actually better to use that node instead? I watched like 6 tutorials and all of them use just save game to slot without even mentioning async and someone claiming that he made tests and with larger amount of data async was worse.

[faint pasture]

Async won't really be faster, just won't stall the framerate until it finishes. You'll know if you need it.

[gusty cypress]

Sorry for delay but this worked like a charm! It was so easy since it gave the INT outputs

[crimson geyser]

I made some arrows that spawn and fly and they get destroyed after a couple of seconds. Also when they overlap the character the character dies. Everything seems to work, but I get this error/warning. Could anyone tell me what it means?

Blueprint Runtime Error: "Attempted to access BP_Projectile_C_1 via property CallFunc_FinishSpawningActor_ReturnValue, but BP_Projectile_C_1 is pending kill". Blueprint: BP_Shooter Function: Execute Ubergraph BP Shooter Graph: EventGraph Node: DestroyActor

Screenshot is a little small

[brazen merlin]

pending kill tends to mean the actor in question has been told to be destroyed (therefore killed) but something is trying to reference it after the fact

[crimson geyser]

So its probably because of the delay timer? It will destroy actor every 3 seconds, but maybe there is no arrow at the end of that 3 seconds?

Got it 😁

[brazen merlin]

dunno

great!

isValid tends to be a solution

though thats better

[stray moat]

how would i get my character to rotate and face camera instead of camera behind him all the time

[bright frigate]

Guys I can't figure something out that should be simple and should work.

I have these three zones (enumerations) N for outside a building, C for a special zone (still outside) and I for inside.

If i come in through the front then all is well

but if I go in between C and I using the side, it switches to C correctly but going inside, it switches to I momentarily but always goes back to N. I can't understand this.

The problem this is giving me is that I cannot start/stop the music I don't need. Why wouldn't it just stick to I when inside?

[maiden wadi]

I'm not sure who conducted that test or what "worse" entails but of course Async saving took longer. It's Async. But it won't stall the gamethread. Neither is "better". They're tools for different situations. If you have a lot of data and you save in the middle of a player playing, then async save so that they can keep playing without issue. On the other hand if you save at the end of a game, Async is bad because you do want to save immediately and you're already ending the game so frame hitches don't matter.

[maiden wadi]

Could probably just tier your music selection in a simple state system. Check if in special zone, play that, if not check if inside, play that, if none, play outside. Run that on each zone change check, do nothing if correct music is already playing.

[bright frigate]

I'm checking but the problem is that the it keeps switching to N instead of I when I'm inside only in the side door entry

[stray moat]

pls help

[bright frigate]

it makes no sense I can't figure it out. Why would that particular area not overlap correctly? The whole interior space has a giant trigger volume, there's no way you can not overlap with it

Here the arrows point to the yellow/green bounding boxes of the trigger volumes

[spark steppe]

i would just put triggers on the doors

[bright frigate]

This "works" in the sense that it allows the correct switching when going inside or outside. But that does not explain why the enum does not switch to Inside when I enter the Inside area, even though upon overlap that's exactly what it's supposed to do. Why would it not switch?

While this would normally work, now there's the problem that it'll always remain on C if I exit this trigger volume at the other ends (it's an alley so let's say the front or end of it)

[bright frigate]

yea this might be the only thing left

but it feels so nasty lol

[willow phoenix]

instead of having a lot of code inside one actor and choosing to run parts of the code by a bool, would it be more performant/better practice to break down the code into components and add them on the construction script?

[spark steppe]

you could, i just do that to keep things sorted

e.g. inventory is a own component which handles all inventory related things

another one is outfit, which handles all the cloth

otherwise your actor can get really bloated by time

[maiden wadi]

Probably depends on the code in question. Performance is negligent. You can have 100,000 lines of code, but if only 2 ever get ran, it's still going to be pretty fast. Components incur overhead though. Not much but if you're trying to optimize to the extent of moving code out of a class, I don't think that'll help. But for organizational purposes, if you have an easier time keeping track of things in different classes, it's probably worth it.

[willow phoenix]

yeah, i thought this would be 'easier' to keep track of things. only problem i see right now, the variables i set on my BPC (even if exposed on spawn) are not showing up on the actor that owns the BPC. is there a good way to work around that? for example if i want to set the movement speed on this BPC actor from my editor window

if i start adding in all those varibales on the actor itself, it will become quite confusing again 😄

[spark steppe]

you can select the component in the details panel and set variables on it

[willow phoenix]

but not if i added it from within the construction script, right?

[spark steppe]

yea right

[willow phoenix]

sadface

hmm maybe a struct for each component

thanks @spark steppe and @maiden wadi 🙂

[spark steppe]

yea, thats probably better than exposing 20 variables on the actor

and you could implement something like LoadSettings(ComponentStruct) on the component

[willow phoenix]

oh whats loadsettings? i would have done it like this on the construction script

[spark steppe]

thats something you would have to create yourself

[willow phoenix]

like do neat stuff in c++? :>

i guess, rn thats off the charts 😄

[stray moat]

I really need help any would be appreciated

[willow phoenix]

not sure what you want exactly since you have only the Z Axis for rotation connected. but im guessing the "error" you are experiencing is because you have some form of rotation on the basic mesh already. that makes things with the find look at rotation a little strange. or basically super strange

maybe, add the local rotation to the world rotation. but i think is is rather hacky, and will lead to more problems when axis overlap and then shit hits the fan 😄

best way would be to have the character not be rotated by 90° (or what ever) in the character blueprint

[stray moat]

is it the rotation on the char movement component

[willow phoenix]

go to your character blueprint

select the mesh

and look at the rotation

[stray moat]

its at 270

[willow phoenix]

this is what i meant

just for the lulz, set it to 0

and check what happens to your "find look at rotation"

character will walk super strange then.

but thats your problem then 😄

if you find a solution after that, teach me :>

[timber knoll]

Look at uses the forward axis, so you have to make sure 0 degrees = looking forward

Or manually change the result rotation after

Usually you just rotate the capsule of a character, which allows your mesh to have an offset rotation

[stray moat]

how would I rotate the capsule of my character

[timber knoll]

it's the root of any character

or you use control rotation through player controllers

[stray moat]

do you have any recommended tutorials so I can understand this better, pls

[timber knoll]

a root component is the top component on your actor

everything underneath will follow the root's transformations

so if you rotate the capsule, the mesh and camera will also rotate

same applies to scale

scaling just the capsule scales everything

I'm not sure what tutorial to link you for this...

[stray moat]

I got the character to rotate towards me with root motion animations but whenever I use in_place animations. I can only see the back of the character , I don't was to use root motion as the character is quite slow

[grave apex]

can you have 2 levels loaded at once?

like, be playing one level, go to another, pause your original level, do stuff in the second, and then go back to the original and resume once youre done with the second level?

[maiden wadi]

Not exactly. Normal workflow is just to save the state of the first level, destroy it, load the new level. Play it, then destroy it and reload the first level with the saved data.

[grave apex]

aw, what if i had a bunch of physics objects i wanted to resume?

[maiden wadi]

Save their state.

[grave apex]

do you have to write a custom system for every one of your actors to save and load their data?

or can the engine do that for you?

[maiden wadi]

Uncertain. I've never looked into blanket solutions. I just save what I need.

[humble vine]

Can someone please explain me why drawing the debug arrow works when the origin (green ball) is at world 0,0,0 but goes haywire when I move the origin somewhere else? And yes I know I could just draw the arrow directly from one actor location to another, but I actually need the vector data for something else and I'm just trying to use debug arrow to first make sure the vector always contains correct information, which it currently doesn't. I'm sure the problem here is something really basic

[torpid hound]

I think your line end wants the defaultSceneRoot.WorldLocation added to it.

At the moment you're getting the offset from sphere to cube and plugging that into the line end as a world position

[acoustic tundra]

track the mouse location where it is on the screen

[humble vine]

That worked thanks. And yes I could figure out visually that the debug arrow kinda extends opposite to the balls location... I still quite can't compute in my beginner mind why it needs the world location added to it

like isn't the point of getting the world location, getting the world location without needing to add it in again

[torpid hound]

It's always a pain switching between local and world space - years of this and I still get confused sometimes. Ironically here I think all of your calulations are doing what you think they are, just the drawing is wrong 🙂

[torpid hound]

Not really. In this case you are getting the world locations, and using those to create a look at rotator, which works perfectly. But to create a lookat, you are calcuating the position from the point of view of the sphere. It's only relevant for the sphere. But the debug drawing is an entirely separate action, that only cares about absolute values in world space. It doesn't know about the sphere's point of view, so you need to let it know

[humble vine]

I guess that starts to make sense... thanks for taking time to explain it. Why I need this vector is because next step is to rotate the point (where debug arrow ends currently) around the origin to create an orbit, or pivot rotator more like where rotating the cube actually moves it around the origin while keeping the same distance. I just can't parent these things together so have to do it hard way

[grave apex]

im like still stressing over which kind of system I should use for my RPG game, i want to be able to switch from an overworld type gameplay to a turn based battle gameplay, but in the same location. I dont know if I should be making my own manager actor to handle all of this? or something like gameState/levelBlueprint?

if I did use a manager actor, how could I make it kinda omnipresent? so any actor in the level could trigger functions within it?

without having to go into every actor and pick out where the manager will be before hand

[surreal peak]

I usually make Managers ActorComponents

And place them on the GameState

So you can easily do GetGameState->GetManager

[grave apex]

ah

[surreal peak]

And Actors that the Manager needs to govern are gathered in an array

By a combination of GetAllActorOfClass (BeginPlay of the Manager).
And Actors selfregistering via GetGameState->GetManager->Register(this) on BeginPlay, as well as unregister on Endplay

The GetAllActorsOfClass could maybe be skipped

[grave apex]

should I derive from GameStateBase? or just GameState?

[surreal peak]

I usually use GameState

Have never found a reason to use the Base version

[gentle urchin]

^ doing the same but in Playercontroller

[surreal peak]

It's made so games that don't need the traditional Unreal Tournmanet match type game don't have additional code

But the split is done poorly

Just make sure you use gameMode then

Not not GameModeBase

cause you can't mix them

[grave apex]

I hesitate putting everything under controller cuz it seems like bad practice

but idk

[gentle urchin]

its a component so ill just swap it around if i find it necessary really

the 'workers' in this case just register like this

[grave apex]

I dont really know when to use gameState

vs something else

[surreal peak]

I don't really see the need to place stuff under PlayerController if it's about the whole game's state

[maiden wadi]

Gamestate if it needs to be known by everyone and involes the state of the game in some way. PlayerState in the same regard but if it relates to a specific player and doesn't belong on their pawn. PlayerController if it doesn't need to be seen by other players and only relates to that player. GameMode if it's server only and client has no business seeing it.

[grave apex]

why have player state when you have player controller tho?

[surreal peak]

network related

[maiden wadi]

In single player this largely still applies, just with slightly more freedom since lack of networking. I'd advise following those guidelines though in the event that you ever plan on networking.

[grave apex]

oh

[surreal peak]

PlayerController is only available to owning client

PlayerState is replicated to everyone

Information in teh PlayerController won't be available to other clients

So Stats, Ping, everything you wish to show, even if there is no character alive, like a scoreboard for exmaple, is PlayerState

Singleplayer you have a lot of freedom

Cause you don't have to care about that

I still do it the same way though

Habit I guess

[gentle urchin]

Manager in an RPG sorta makes sense to keep in the GameState i suppose, but for my RTS i feel it's more approprate in the playercontroller..

globally accessible in any case

[maiden wadi]

You never know when you might want to branch off into multiplayer territory.

[grave apex]

yea

[gentle urchin]

Plus even if you dont, you still stick to the same practice , which is good imo

instead of mixing your practice for no particular reason

[grave apex]

yea, I eventually want to do multiplayer stuff, but all this stuff is real confusing I guess since I can just do whatever I want

in singleplayer

[acoustic tundra]

Hey does anyone know how to track mouse position in a 2d game? I'm trying to shoot a projectile towards a crosshair that's controlled by the mouse, I got the move to set up, but the end location isn't where the crosshair is. The BP in the picture is the Player blueprint. Any help to track the mouse location correctly?

[gentle urchin]

I think you need to deproject screen to world location

[acoustic tundra]

like this?

[gentle urchin]

wrong screenposition

but otherwise yes

[acoustic tundra]

what should be the screenposition?

[gentle urchin]

atleast not the viewport size

what would have a screen position?

[acoustic tundra]

cursor location?

[gentle urchin]

bingo

[acoustic tundra]

like this?

the x is off when I play, should be on 0 but instead is on -2000

[gentle urchin]

Are you sure it should be 0

the crosshair screen location would still be Mouse Position
the actual in game aim location would be the deprojected world location

[acoustic tundra]

yeah as it's 2d. Y is the horizontal axis and Z the vertical axis. Everything is placed on X=0

[gentle urchin]

it looked top down, meaning X and Y have variation, while Z is fixed..

deception^^

just nulling out X would solve it?

break and make vector, keep X disconnected

[acoustic tundra]

so it's not top down, it's like looking from the back. For the player it does seem top-down but the axis are Z for vertical and Y for horizontal

[gentle urchin]

gotcha

[acoustic tundra]

after the deproject node?

[gentle urchin]

hmm it seems we need some math here

https://www.youtube.com/watch?v=K3PRdupeCso Mathew can explain this properly i guess 😛

My suggest method failed hard

what you can do is use hit result under cursor , assuming you have a background to hit

this will give you the hit location

I'd add a custom trace channel that would be blocked at the correct X location

with an inivisible object taking in this particular channel

out of the box it'll hit at any depth wherever the blocking hit is

[acoustic tundra]

just got told to do it with a linetrace, maybe that would work?

so the begin of the linetrace would be the start location of the cursor and the end location the world direction * a big float

[gentle urchin]

The under cursor is a linetrace :p

[acoustic tundra]

so i got this set up, seems like the cursor is actually fine now but the character placement is off and not on the mouse cursor

[gentle urchin]

Cuz actor is moving far less than the distance travelled on screen

If you want the actor to follow the mouse, you could set actor location to the mouse hit location

[acoustic tundra]

ayee yeah got it working

[haughty nymph]

i dont no what is wrong with my zombie death the zombie move when he is on the ground

[ancient atlas]

quick question, i have a torch added to my player model but it is getting in the way of my enemies attacks. is there a way to disable collision on it or something? Thanks

[maiden wadi]

SetCollisionEnabled to false.

[wheat herald]

Is it possible to get variables from other bp into my current bp ? for example get variables from an actor bp in my firstpersoncharacter bp

[gentle urchin]

Yes, check out blueprintscommunications pin

[main lake]

Does anyone know if it's possible to put an exposed variable on the player himself, and access it in t he editor to set a reference to an actor in the level ? Because I can that with other actors but can't find how to do so on my BP_Player

[glossy bison]

Hey guys, i was looking Epic ARPG and i didn't understand what they did with this variable "Equip Slot", how did they change the return value?

[gentle urchin]

Right click the pin -> split struct?

[glossy bison]

yes, but they changed the type to text

it's the same variable

[maiden wadi]

What is BP_Player? If it's a controller, then no. If it's a character pawn, then you can if it's dropped into the level.

[maiden wadi]

Split the blue one again.

It's a struct inside of a struct that has an FName

[glossy bison]

oooh i see it

thank you @maiden wadi and @gentle urchin

[main lake]

It's a Character

[maiden wadi]

Your choice is to drop it into the level and use the auto possession settings thingy. I have no idea how to do that, I've never used it. Or to have your character get that actor when it spawns and save a reference then.

If you're using them for setup, caching a pointer from GetActorOfClass is pretty cheap.

[main lake]

do you know how can I see what the values of an array are during runtime ?

[remote belfry]

So I came across this https://github.com/sinbad/SUQS and am trying to implement it, but the doc assumes I know what I'm doing lol. Just wondering if anyone has had any experience with it? I don't want to bug the dev with questions just yet.

[maiden wadi]

Breakpoints to stop execution. Or wire up a quick HUD Draw event.

[remote belfry]

@trim matrix I know it felt like I found a bag of money lol.

but less fun

sorta

I'm mostly just looking at how other people have gone about organizing the data to make quests/events.

[main lake]

I used a print statement to do that, thanks. Also I don't know why I can't set "FinalDoor" to the item at index 0 of my Array finding the actors of class with Tag "FinalDoor", does anyone know why ?

[maiden wadi]

What kind of pointer is Finaldoor?

[main lake]

ObjectReference

BP Door Object Reference

[remote belfry]

Tried to mess with Flow Graph in the past. Couldn't get it to work.

[maiden wadi]

Odd. It should let you. Maybe compile and select all three of those nodes, right click and refresh nodes.

[main lake]

It works now thank you 😄 Do you know why it does that ?

[maiden wadi]

Not a clue. Just blueprint. 😄

[main lake]

x)

[maiden wadi]

If it's not working and it should, refresh it, or delete it and recreate it. 🤷‍♂️

[main lake]

Also something weird, isn't possible to get the item at index 0 without it being a "copy" because I only found the "Get (copy)" and not something to change directly the item itself

[maiden wadi]

Chances are it's likely a state issue with the underlying slate somewhere. Stops the drop process I'd assume.

And to that, no. The blue variables like that are called Pointers. They're not actual objects. Passing around whole objects would be extremely cumbersome. So instead, you pass around little tiny variables that basically point to that object's location in memory. So you create a copy of that pointer from the array, like jotting down a phone number to a business, instead of building a new business at home.

[main lake]

so that means, I can make my door rotate when I need even if the node itself says "Since it's a copy, changes to this item will NOT be propagated back to the array" ?

[maiden wadi]

Correct. Cause you're copying the memory location it exists at. This means you can have two different pointers one in the array and one in the new pointer you've set. And both of these point to the same instance of the object, so either of these can be used to have this object rotate itself.

[main lake]

so all good, I have some prints in my code to check if my FinalDoor variable is valid and it still "Invalid"

like it keeps printing the printstring in the bottom of the screenshot

[maiden wadi]

Sounds like your array didn't find anything?

[main lake]

oh wait I know why

nice it works thank you 😄

I had the Door Mesh instead of a BP_Door, that's why it didn't find it

[spice smelt]

Nevermind found it

[zealous moth]

drawing a blank here on the save data process

I have a cache of my save as a struct, I want to add a GUID to my struct array

when doing either add or append, it doesn't return the array

do i make a new array var and set it?

no no no, ignore that part, i just want to set the GUID in the struct

the set members

hm when i scroll over it it says it reads the data

so i am guessing it is a copy

true but I just want to set that particular member

nothing else

the GUID array

looks like i need a local copy and then set it as a whole

[dawn gazelle]

I just had a thought about this again, and I realized that if you have a pause feature in your game, using the time stamp won't work for start/finish since you'd have to effectively remove the duration of pauses from the timer which seems messy and overly complicated. So I think you're back to using a timer set to run every 0.001 which you can pause and restart, but instead of working with floats, increment a timespan variable by adding 1 millisecond on each tick of the timer - each millisecond will add up to create your seconds/minutes etc. in the timespan variable.

[zealous moth]

@trim matrix

yeah im just prototyping

[gentle urchin]

Being as easy to make as they are, it's a bit odd that bp structs even exist imo

[zealous fog]

Why are they broken?

[gentle urchin]

generally a pain to work with aswell

[halcyon grove]

I've got a lot of stats in my game and normally I'd store them in the player or unit, but I find myself typing them too many times, would it be better to store them in a component or object?

For cross reference

Any pitfalls for going that route?

[earnest tangle]

A data asset perhaps?

[halcyon grove]

I'll check it out

I'm talking things like HP, Mana etc. I think that channel is specifically for the UE4 ability system which is not compatible with blueprints?

or rather it can't be managed with blueprints

[tawdry surge]

Isn't there a gameplay ability system groundwork template on the marketplace?

[wise swan]

any nice tutorials on how to create widgets dynamically in bp

[halcyon grove]

Do you know a good resource: youtube channel, documentation etc I could look into this at?

[neat stream]

Do you mostly put your input management inside the character or the controller... I'm not always sure ... 🙂

[vapid ibex]

Is it possible to return an array of all actors attached to this one in World Outliner? Get All Child actors doesn't seem to return those.
I want to make an actor that can hide or reveal chunks of the map on a trigger (like, entire wall of a building disappears and reveals the interior, as the player enters it)

[neat stream]

You mean between UI Mode and Game mode

Yes that's my point... I pretty get the whole architecture... but I'd love to see what studios with really good practice are implementing... Between a One pawn game to a Multi Pawn game (gta like)

[reef pumice]

how long does it take to master blueprints?

[gentle urchin]

10 000 hours

[reef pumice]

Damn

for real or are u messing

[gentle urchin]

define master

depends on a ton of things

[reef pumice]

Be able to do everything blueprints have to offer

Alright

yeahhh im only 13 so i cant really get hired yet

[gentle urchin]

then you got plenty of time

5 years gets you up and about

[tawdry surge]

That 10k hours thing is an old wives tale

[gentle urchin]

for sure

depends on what mastery you're aiming at

I got 5 years of bp experience. while I still learn new stuff, i feel like i can get up and around doing most things in bp

probably not the case at all but oh well

excluding multiplayer

You get far just knowing how the logic works, and knowing how to google really

There's a ton of bad habbits, pitfalls and just horrible practices out there,

but once you learn to identify them, and just take out the essential parts of it that you were looking for, you're good to go

Also

this should be swapped with a "NOT" instead of comparator

while the true statement only need the bool

it will be true when you can transition..

[icy dragon]

Sounds like you know the solution, by not using montages

Ignoring the fact that those one off animations were indeed usually played by montages.

Can I say that the tutorial is shit?

I followed lesser big YTer, 30 parter, and it uses montages.

That was back in 2017

Yes, least the basics of it

Lmao no

Devsquad/Virtus's tutorials are questionable IMHO

[tawdry surge]

That's generous

[icy dragon]

Even back then when I just getting started, I have a hard time making sense of his tutorials. His setups are just not good, to put it lightly.

[tawdry surge]

He doesn't teach good practices.. not that he's hard to understand so much

And if you understand what you did then you wouldn't need to start over

[zealous fog]

I want to have certain actors spawn in a scene, but I want the Static Meshes to be randomly picked from a list. My solution atm is create an SM array within the actors blueprint, and then within the construction script I get that array and pick a random SM. Is this a good way of doing that performance wise?

[tawdry surge]

I always look at a few different tuts on the same thing just so see how they did it different anyway.
If you actually understand what you've done so far you can roll through a different series pretty quick and keep it moving

Not restart, just identify the equivalents in your project and keep building on it

[icy dragon]

I used to follow this tutorial back in the days, not the greatest, but this actually makes more sense to me as a beginner early on, and it use montages.

https://youtu.be/8CA4e818erY

Yeah, the playlist do cover how to get the basics running.

Even if it's not start to finished complete framework

I should say that I do my own experimentations in between parts, and goes on my own.

[tawdry surge]

If you need a start to finish tutorial then you need more practice with the basics. Without understanding it you can't modify it to make it unique and you didn't really learn anything

Not unless you want to.. but don't just copy what the tutorial does.
Do a thing, then play with it

See how it works so you understand what you just did b4 moving on

[icy dragon]

As I said, improvise from the tutorial and experiment with it. Copy pasting without any attempt to at least try something with it yourself won't get you anywhere.

I do used to (and still, at times) follow YouTube tutorials, but the difference from just copy pasting is that I occasionally tinker with what I had to see what works and what doesn't.

[tawdry surge]

^

I took it a lil further and would make a different variation on whatever the tut was for..
Space invader tut became 2 player shootout

[lyric urchin]

anyone have any tips to use a seeded Random Stream properly? i have a function to generate a random level that runs in the construction script and in Begin Play. the one generated in the construction script is different than the one that generates in-game through Begin Play

[brazen merlin]

whats the bit you're confused with?

you want to use the Stream input?

[lyric urchin]

im not getting consistent results from the level that is generated in the editor VS in-game

[brazen merlin]

ive not tried a seeded stream from construction script

by editor and in game, both are in editor right?

not a standalone build?

[lyric urchin]

yes

i just launched it stand alone and it generates the same level as the PIE one tho

its just the construction script is different for some reason

[brazen merlin]

ah ok

so i guess cs runs differently

where are you setting the seed?

game instance?

because that would explain it

[icy dragon]

Construction script indeed run differently. It shouldn't be used for gameplay/runtime reasons.

[lyric urchin]

no, its within an Actor which serves at the level

[brazen merlin]

would that even work between other actors?

[lyric urchin]

the level Actor is the only thing that accesses the random stream

[brazen merlin]

ah ok

[lyric urchin]

the random stream is part of the Actor

[trim matrix]

Does anyone know how to integrate with the ETH blockchain?

[brazen merlin]

i try not to

[trim matrix]

How can I change player pawn at level load? I have a default pawn setup, which is a base pawn. The player selects a player in a previous level, which is a child pawn of the base pawn. The child pawn class is saved to the game instance but I can't figure out how to switch the pawn on level load. I tried destroying the base pawn and spawning the correct child pawn, but the camera breaks and the player can no longer control the pawn.

[trim matrix]

but I want to ;P

Oh I wonder if it's because I'm not possessing the spawned pawn duh

[zealous fog]

Anyone knows?

[tight schooner]

Should have no affect on cpu perf beyond draw calls. Handling an array of references is tricky though cuz all those assets in the array will be loaded into memory whether it's spawned or not. The workflow to manage that is "soft references". Epic has a video called something like Soft References Demystified on YT

If it's just a few meshes then it's fine to use hard refs. Epic's example was loading a variety of skins on a game character.

[trim matrix]

https://www.youtube.com/watch?v=K0ENnLV19Cw
found it, love the intro music on these things lmao

[zealous fog]

Cheers man!

I'll watch the video

Couldmt I also remove the meshes from memory after picking one?

[thorn fiber]

Any reason why Event Shutdown inside a game instance is not getting called on Editor Shutdown or Quit Application?

[zealous fog]

Is there any disadvantage to using macro libraries?

[zealous fog]

Is this correct now?

[brazen merlin]

nope, nor function libraries

[zealous fog]

So if I use a macro from a library, it wont load anything but the macro Im using?

[brazen merlin]

sort of

[brazen merlin]

if you dont use a macro anywhere in your code but its in the lib, it wont be used

[zealous fog]

No I mean, if I use that macro, that means nothing else from the library but that one macro will be loaded?

[brazen merlin]

loaded?

the only code that matters is the code that runs

[zealous fog]

What I was afraid of is that if one of the macros in the library for example casts to an object, and I use another macro from the library that that reference will be loaded

[brazen merlin]

pretty sure each macro is self contained

so if you have 3 different macros that use the same cast, essentially for the means of getting that actor, its based on when it gets called in code

if you're still concerned, then show the macros in question

[gentle urchin]

Wait, can that be right? So a class wouldnt get loaded before the macro is called? I somehow doubt that , but got no clue

Since the macro is essentially thr code it contains, it should behave like regular casts and whatnot in that matter

[brazen merlin]

i guess i dont understand the question, but ive used casts in macros

if it had a compiler problem it would obviously happen

[gentle urchin]

Yeah no problem there

As i understood it , it was more a question about when or if an object where loaded into memory or not when using a macro

[brazen merlin]

i guess, i dont know

[gentle urchin]

As i've understood it, a macro is basicly a snippet of code (that is easily re-used) and thus should behave like regular code

[brazen merlin]

macros work just like as if they are in the bp graph

[gentle urchin]

Exactly ^

[brazen merlin]

they're just unbound from a specific actor or w/e

[gentle urchin]

I think we agree :p

[brazen merlin]

yeah

fwiw, macros have one slight limitation and that's based on the class they are constructed from - i.e., actor macros work for near everything (all kinds of actors), but let's say not an actor component

[tight schooner]

I never used soft refs myself so I can't say

I just know of them

[gentle urchin]

I think you need to load the object first before you can use it

[zealous fog]

This seems to work

[zealous fog]

Yeah I guess I just dont get macro libraries yet

[gentle urchin]

Yes, like that

[brazen merlin]

think of them like any other kind of macro you make or use

[zealous fog]

Thanks for the info

[brazen merlin]

yep

[silver edge]

kind of a dumb question but I am quite dumb. how do I fix my movement axis being swapped. W/S moves the ship from side to side instead of forward to back. Idk if this is it but I think my mesh is sideways but I dont know how to rotate it since its the root component and it wont seem to let me rotate it.

[zealous fog]

Add an arrow component so you know what direction is forward

[silver edge]

Yeah its definitely sideways

[zealous fog]

Add another root component

rotate your mesh

and make it the root component again

Im not 100% itll work

[silver edge]

Yeah I tried that it just rotated back

Using unreal engine 5 btw

[zealous fog]

You can make an empty root component and have the mesh under it so you can rotate the mesh

[silver edge]

I reimported it with a rotation and that seemed to do the trick 🙂

[flat coral]

is there a shortcut for making a reroute node when dragging a line?

[brazen merlin]

Type "rer" once dragging out

Or make the wire then doubke click the wire

[flat coral]

And yet we can one-click branch nodes... 😦

[hallow wraith]

I'm trying to get my 3rd person character's camera to behave like the default/sample 3rd person controller, but I can't figure out which wires i've gotten crossed, or which setting i'm missing.

My character mesh's rotation is locked to the camera rotation. .. I can move in different directions, but you're always looking right at his butt.

the default character always faces the direction he's moving even if he's not moving the same direction as the camera.

I've pretty much copied all the blueprints, but I've obviously missed or mixed up something. Any hints?

[zealous fog]

https://answers.unrealengine.com/questions/803613/how-do-you-make-custom-keyboard-shortcuts.html

[zealous fog]

You can make your own shortcuts

[flat coral]

I know but I haven't yet and once I start, how do I stop?

And then the different computers I use will start to diverge unless I figure out how to check my keybinds into fucking plasticSCM or something, and now it's a project, you know?

[zealous fog]

It's always worth it to spend 10 hours on something that'll save you 1 second

That's the programmers way

check the camera settings on the spring Arms details panel

@hallow wraith

[hallow wraith]

i have.. but i didn't find anything.. do you know what setting i'm looking for? I might have missed it lol

[zealous fog]

Play with those

Disabling the yaw maybe

[hallow wraith]

alright.. the default 3rdpersonchar has them enabled tho 😄

i'll give it a shot anywya

[zealous fog]

It work?

[muted halo]

Hey guys can someone take a look at this blueprint and tell me why it works when I Simulate my scene but when I actually Play it the Zoom effect doesn't take place?

[hallow wraith]

No… those settings just made me unable to control the camera.

[fallen shore]

Hey guys, can someone help me out? I have a system in my endless runner game, where if i run into meat, i gain coins, but if i run into barrels, i lose coins, I wanted to make it so if my Total Coins goes below 0, the player dies, however, that isn't happening for some reason

[brazen merlin]

Suppose there might be a hotkey you can creat

[faint pasture]

Well you need to branch, you don't need to reroute. I use zero reroutes.

[fallen shore]

someone just told me i had it the wrong way before ffs

it still doesnt work no matter which way i have it tho

[olive cloud]

are you actually calling it?

[faint pasture]

You should be calling it every time you hit a barrel/meat

[olive cloud]

set a breakpoint to A. check that it is being called, and b. check the value of total coins when it is called

[fallen shore]

I am a bit, of a blueprint shitter, I've been using unreal for like 2 days. I thought this would be good enough, i have a score system that the total coins is based off

erm alright i'll try all that now

thank you all

[muted halo]

Hey thanks for the reply! I connected the camera bp to the asset and it still doesnt zoom in when I hit Play but does when I Simulate

[faint pasture]

Hit Barrel -> subtract coin -> Check if should die

@fallen shore

[fallen shore]

ah I get you

thank you

lemme try that

[muted halo]

Hey again! How do I trigger or call a blueprint into my sequencer?

[devout pecan]

l

like so

[muted halo]

So if I had that to my blueprint I should be able to add this into my sequencer? @devout pecan

[devout pecan]

yes show here

https://docs.unrealengine.com/4.27/en-US/AnimatingObjects/Sequencer/HowTo/TracksEvent/

its a dock over that

[muted halo]

I tried following this but I didnt have any luck. thank you tho for the answers!

[devout pecan]

by Adding Event Tracks

hm normaly works

[muted halo]

Do you mind if I show you a screenshot of my current blueprint and my sequencer setup?

[devout pecan]

yes

show

[muted halo]

So basically this blueprint has it so every few seconds the camera zooms in and then later it will zoom back out. My sequencer is currently setup (roughly) to orbit around this city I have right now and I want it to zoom in and out as it goes around

When I play my scene the zooming in and out is no problem. but when I render a movie it doesnt know to do the zoom and it just orbits around

[fair magnet]

Hey? Anyone knows how I could create smth like a dynamic cast? :o Basically I want to cast to a provided class.

[tight schooner]

It's kind-of the reason to use an interface like a cast to a shared parent class, or a Blueprint Interface, or to get and interface with a common Blueprint Component

so that you don't have to cast to / hard-reference a bunch of classes

(regarding a "dynamic cast", IDK offhand)

[hexed cloak]

I need to get all of the street lights connected to my time of day manager. I'm assuming it would be more performant to do a single "get all actors of class" call on the time of day manager to get the lights, than it would be to call the time of day manager on every light, right?

[dawn gazelle]

<@&213101288538374145> ^

[torn kettle]

:no_entry_sign: AirNemke#8169 was banned.

[fiery escarp]

Got it. Thanks for the heads up.

[hardy fable]

ah yes "dlisocrd"

[dawn gazelle]

You would probably be best doing it from the time of day manager, but you could even do one better - since the lights and the time of day manager all are placed in the level (I'm assuming), you could probably make an exposed variable on your lights for the Time of Day manager, and then select all your lights in the scene, and set that variable to the Time Of Day Manager, though of course, if you place more lights later, you need to make sure to do it on them as well.

[daring vapor]

Were you able to find an answer to this issue. I'm running in to the similar problem.

Were you able to find a solution to this issue (pushing the sound mix modifier)? I'm having a similar problem.

[hexed cloak]

That's probably a better idea, thank you.

[marble sinew]

Blueprint Runtime Error: "Attempted to access Projectile_C_0 via property CallFunc_FinishSpawningActor_ReturnValue, but Projectile_C_0 is pending kill". Blueprint: Ballista Function: Execute Ubergraph Ballista Graph: EventGraph Node: Add Impulse

I'm currently getting this error

Idk why either

I'm trying to have something spawn a actor and then fire it or launch it

But it isn't even spawning it in to begin with

[brazen merlin]

is pending kill = actor is being referenced after being destroyed

[marble sinew]

But I have nothing calling the actor to be destroyed

[brazen merlin]

are you sure? Projectile 0 is having this issue

[marble sinew]

Nothing is in there

I used to have a destroy actor there but after seeing the error I deleted it

[brazen merlin]

hang on, what are you doing here?

[marble sinew]

I'm having a basic static mesh spawn an actor (A sphere with collision) And then launch it

That's it

[brazen merlin]

hmm

[marble sinew]

The static mesh

[dawn gazelle]

If you've set up the sound mix correctly, and are using a spawned sound in the world (Not a 2D sound), then it could be your collisions are not working.

[brazen merlin]

well its the add impulse having issue, the pending kill is confusing now

[brazen merlin]

i know this is set to counter, but maybe it is still failing to spawn it

[marble sinew]

Is there something else I can substitute for it? And yeah It's not even spawning the actor even though there should be no reason it isnt

[brazen merlin]

maybe spawn it in front of the meshes

but i also think you should use a projectile movement component instead of trying to impulse it

it might also be that the impulse doesnt work if it has physics

projectile movement component, however, does not actually use the physics checkbox

[daring vapor]

Here is a video that covers how it's set up. The sound is in the world as a sound cue, and yea it's not a 2D sound. https://youtu.be/pkkKpnufSEg

[marble sinew]

It does have physics so maybe

[brazen merlin]

well the impulse should work, dunno if that messes with collision inside of object

might be safer to use the component (be sure to turn off physics)

[dawn gazelle]

What happens if you give the character direct control of updating the the sound mix? Like below, and when in game does pressing and holding the key muffle the audio?

[daring vapor]

I'll give it a go. I hadn't though of this. One min.

[marble sinew]

Gotcha

[daring vapor]

No change with this set up.

[marble sinew]

WAIT Spawning it outside the Cylinder rather than inside of it worked!! @brazen merlin

Idk why though because the Cylinder's collision was turned off

[brazen merlin]

great, i think this would work if it didnt have physics, but thats merely speculation to the fact i dont normally spawn physics actors

i guess it makes sense that there would be a problem since collision in physics is no good

[grave apex]

I think I accidentally set my game state to gameStateBase a long time ago, and now my inputs break whenever I try to replace it, and I cant find it in the content browser, what should I do?

[brazen merlin]

no, that is right

[grave apex]

oh, it is?

[brazen merlin]

did you make your own Game State?

[grave apex]

yea

[brazen merlin]

oh

nvm 😄

[grave apex]

well, now I am

but none of my movement inputs are doing anything anymore

but they do work when I set them back to GameStateBase

[brazen merlin]

are you sure the Game Mode isn't wrong?

[grave apex]

But I want to use my own

[brazen merlin]

whats your entire game mode settings?

[grave apex]

even setting it to GameState doesnt work

custom

[brazen merlin]

as is anyone's...

[grave apex]

the only thing I change is the game state

[brazen merlin]

i never mess with the last three much

[brazen merlin]

those are usually left alone

[marble sinew]

So the reason was this it was set to something else and that's why it wasn't working originally

@brazen merlin

[brazen merlin]

yes im right here

i guess try to spawn and adjust doesnt like phyics objects

[grave apex]

well, I want to extend my own for some new functionality

[brazen merlin]

alright. did you extend from GameStateBase?

[grave apex]

no, I just did GameState, but ill try

hmm

that worked

I wonder why though

isnt GameState the default for GameModes?

[brazen merlin]

nope

Game State Base is

[grave apex]

oh

hmm

I wouldve thought GameState would inherit all of the functionality from BaseGameState and more

wonder why it would cause problems...

oh well, ty!

[brazen merlin]

its as the message states

check your action mapping

[blissful widget]

"action mapping Unreal Engine" - Google is your friend

But the simpler version of that message is "jump input action not defined"

[dawn gazelle]

There is a clear distinction in your videos when the audio appears to be getting quieter, though that waterfall sound is pretty loud. The only other thing I can think of is the frequencies of your waterfall sound aren't really centered around the frequencies you have defined. Below is an analysis of the audio in your video of all the sound received, and it's pretty hot in the low end centered around 200. Try the settings I have below and see if that makes any difference for you.

[daring vapor]

Wow, thanx for digging this deep. I'll see what your suggestions do for me.

no difference...

[dawn gazelle]

D:

[daring vapor]

FYI, I did edit the audio a bit on the recording through Camtasia. My voice gets recorded in Mono, and will only come through the left speaker. So I split it so it comes in both speakers, this might be what you are seeing. The audio from the game comes in stereo, and I don't alter it.

[proper umbra]

I think I figured out a workaround I’ll lyk once I’m on my pc

[proper umbra]

@daring vapor I wasnt able to get it working with the Sound Mix modifier to lower gain. Still not sure how to use that. However, I ended up using the Start Camera Fade. If you transition to an alpha (such as the 0.6 that I used) It lowered the audio by 60%, then you can use Hold when Finished and Should Fade Audio.

If you set the color at completely transparent, it shouldn't change the screen in any way afaik

Idk if it's any better or worse than sound modifier but that's how I got it set up atm

[daring vapor]

Ahhh, clever. Cool, that could work in the short run. Much appreciated. 🙂

[fallow quiver]

Not sure where to put this, but besides making a foliage an actor and setting evaluate world position offset to true through that. Is there any work arounds to make it work as foliage? Or are we still SOL on foliage wind and ray tracing // Solved

[stuck hedge]

Where do you change the web browser material? I've seen several threads recommending that one updates the material with a new material to improve how it looks, and several show an example of the material, but unless I'm going crazy, the web browser widget doesn't have a material on it that I can change.

[haughty nymph]

I dont no what is wrong with my enemy attack. It dont want to play

[timber knoll]

Does the montage get called?

Also a delay after completion would seem very weird...

You want a delay after it started playing probably

My guess is you set up the animation blueprint wrong

[gentle urchin]

this isnt a good way of setting up montages either

hardcoded stuff is a big nono

[haughty nymph]

But how can i call it in a custom event for my task

[timber knoll]

You don’t have to call anything from your anim blueprint

It just has to know what slot to use

Otherwise you will ‘play’ the montage but not see anything

[vagrant flicker]

Hello friends,
I am trying to create an interactable gate using a pressure plate via ActorBeginOverlap which is sliding down on collision and lifting up on ActorEndOverlap.

I made that with a timeline and it works fine, but I need it to be more realistic, so I enabled "simulating physics" on ActorBeginOverlap, because I needed that "bounce" effect of the gate when falling down..

But here comes the problems:

On ActorEndOverlap the door just disappears. I assume it is related with the simulated physics that I've enabled but I cannot figure it out:

https://blueprintue.com/blueprint/qlyl6n3e/

Any help is highly appreciated!

Basically, I need when the door is down, to be able to lift up again to the original place of the marker, but instead the door disappears

[maiden wadi]

#packaging

[late lynx]

ok

[maiden wadi]

@vagrant flickerMy first thought to that is to have two timelines. Have a vector of where the gate should be placed. First timeline just offsets the gate around this vector based on it's own track. This will leave the gate "in place" as long as your track starts and ends at 0. Then on Finished play the second timeline. This one actually moves the gate. Also update your vector that the first timeline uses here so that it plays the first animation correctly when starting the effect again or when reversing it.

[vagrant flicker]

Oh, you are helping me every time.. Let me try and many thanks!

The problem is that every time I make a vector and set relative location in the same nodes in which I use set simulating physics on the gate disappears

[maiden wadi]

Don't use Simulate Physics. In fact, pretty much avoid that for any serious gameplay related logic. In 95% of games, that feature is going to be nothing but cosmetic, like ragdoll bodies on death and such.

[vagrant flicker]

So u thought Is that I can recreate that "bounce" effect using the curve of the timeline at the end?

This is my working variant without that "bounce" effect which simulates the heavy door falling down https://blueprintue.com/blueprint/qs2zzhn8/

[maiden wadi]

@vagrant flicker Did this just for showing what I meant. This is the overlap trigger. Just avoids any logic unless the overlapper was a character. Then checks if any characters are overlapping, and passes that through. You may need more gated logic here if there are multiple characters that can trigger this to avoid issues.

Actual movement logic was here. I was only affecting the Z axis in this case.

[gentle urchin]

I think you'd get away with multiple curves inside the one timeline

[maiden wadi]

Possibly. That increases complexity though. Introduces issues with keeping the starting effect at 0. You can easily end up with a slightly offset door without a few extra tests.

Personally. I hate timelines. 😄 I'd do what Squize suggested with curves, and move this into a C++ actor's tick function.

[vagrant flicker]

Oooh. Let me try this. I was using this for my pressure plates. Seems pretty close to what you've provie me. I'll try to use yours version https://blueprintue.com/blueprint/kci16zev/

[maiden wadi]

To be fair. If the gate is an actor. Putting it in tick with some decent interps and affecting actor's tick setting would be more performant, and possibly much easier to make some nice looking effects with shaking and the like.

Even in Blueprint I mean. Cause the tick will only run when it's enabled. So no performance loss when it's not.

[vagrant flicker]

Yes. The gate and pressure plates are two separate actors..
I've always thought that tick functions must be avoided to save performance..

[maiden wadi]

Timelines are tick functions as well.

Anything that requires constant updates such as a moving object must be updated constantly, which is traditionally done once a frame(tick). Timelines are just a component that is added to the actor, and uses it's own tick to run the Timeline's Update callback. It's identical to Event Tick in an actor or Actor Component.

[vagrant flicker]

Oh... Thanks for the clarification.. I feel stupid now 😄

[vagrant flicker]

Is there any kind of tutorial for this? Maybe it will be an easier option. Otherwise, the first branch in your BP is my OnEndOverlap function right? Where the false statement starts

In my case with the two actors I mean

[maiden wadi]

Hmm. Dunno about tutorials, but sec.

[torpid niche]

Goooood Morning :), i got a little BP Problem. (Im New in UE) i spawn an Actor (Item) from a chest, so if the Player Acor overlapps the item on Spawn, the overlap event didnt Trigger. It Trigger if i move a bit away from the item and go to it. (I hope i explained it clearly enough)

[humble vine]

maybe those overlap events only trigger on movement of actor

[torpid niche]

how i control that?

I got that, BeginOverlapEvent. There are my things in

[humble vine]

i'm just guessing that maybe somewhere under the hood overlaps are only checked when something is moving, rather than appearing on spot.. if so then you'd need manual check

[gentle urchin]

Indeed, some extra tests there is!

Never called myself an animator, but with some work this could look alright i think 😛

for some reason i assumed it was some bridge gate falling down 😛

[vagrant flicker]

Its more like a gate dropping down :))

[torpid niche]

@humble vine hmm, mb something with that locaiton stuff? Movable/Static etc=

[vagrant flicker]

And staying still, not rotating and falling down in the X 😛

[gentle urchin]

same idea still 😄

falling down -> increasing velocity -> impact bounce

during return it'll go up in a linear fashion

[grave apex]

(sorry for interrupting, short question: what's a better/shorter name for this macro?)

[vagrant flicker]

IsMovementKeyPressed?

[grave apex]

that works

[vagrant flicker]

Yeah, almost like this! Is this BP you've provided suitable for third person?

[gentle urchin]

makes no difference really

thirdperson, firstperson, topdown ..

[vagrant flicker]

U are awesome guys!

[gentle urchin]

just for reference

I'd probably use two curves if i did it again. Working in vector curve was shitty experience 😛

[vagrant flicker]

This whole logic is in One BP?

I mean in one actor?

[gentle urchin]

yeah

[vagrant flicker]

Is it possible to split the logic for pressure plates? Since my PP is actually another actor

[gentle urchin]

easy to split in two tho

[vagrant flicker]

Or it is not necessar

[gentle urchin]

it would be smart to do so , i'd say

my way was unclean, and 'hacky' 😛

[vagrant flicker]

I assume that I would not change anything in here - https://blueprintue.com/blueprint/kci16zev/

Just remove the On Component Begin Overlap and adjust the timelines play's
Why is this begin play event? I cannot understand it

[gentle urchin]

since it was in one bp, i moved the internals of the bp in the scene, adjusting their relative locations

thus i had to cache its starting location as a reference

In your BP i'd probably save the reference to the corresponding door at beginplay

to avoid calling get all actors of class every time you overlap

along with also having the option to instantly handle any "no door connected" scenario (e.g found no door with that ID)

[vagrant flicker]

I'll try to adjust that now and play with it... If I have any troubles I'll call for help ❤️

[spice smelt]

why I can't? Are maps of structs disallowed?

[gentle urchin]

not as key

[spice smelt]

oh I thought it would be the content

[gentle urchin]

start with key, make the map, pick the content

[spice smelt]

thanks!

[wild moth]

Hmm hello, does code actually execute in BP right after an "OpenLevel" call?

[gentle urchin]

Not really

as you probably discovered

[wild moth]

Oddly though I am getting code to execute after it

[gentle urchin]

some, sure

[wild moth]

yeah not everything

just the containing function finishes execution

I thought it was a hard stop on the call

[gentle urchin]

probably the same frame stuff ?

i'd imagine teardown starting next frame

[wild moth]

Hmm possibly yeah

[gentle urchin]

Someone with more knowledge about it can probably fill in some blanks about it if needed

[maiden wadi]

@wild moth@gentle urchin Open Level is not actually a hard open. OpenLevel literally just sets a string. UWorld tick, checks this string, and if it's set, will try to open a new level. So execution after OpenLevel will run fine as long as it's not async blocked by a timer or something, because next frame it won't run.

[gentle urchin]

Sounds like my guess wasn't far off then 😄

thanks for clearifying

[wild moth]

I see, it's similar to how I execute my OpenLevel actually, as it's used for loading saves if one is set to be loaded. Thanks for the information 🙂

[maiden wadi]

If you follow C++, you can see this mostly in UEngine::SetClientTravel. That's what OpenLevel calls to set the TravelURL. Then next frame in UEngine::TickWorldTravel is where that is evaluated.

[whole viper]

its kind of the worst thing ever that the align hotkey doesn't consistently straighten the nodes left to right, or right to left

[timber knoll]

it actually does

it's based on the order you select things in

[whole viper]

wait really?

[gentle urchin]

doesnt look like it

[whole viper]

no it doesnt

[timber knoll]

box select is a bit scuffed tho ye

[whole viper]

i just checked

and in the gif you can see i'm always selecting left to right

[timber knoll]

yeye box select is scuffed

[whole viper]

the selection box?

[timber knoll]

i only use it when aligning all in a single line

but if you select 2 nodes by ctrl clicking the order is all that matters

[whole viper]

that doesnt work either

i just checked

[timber knoll]

lol it does for me 🤷‍♂️

what engine version you on?

[whole viper]

oh wait it does. youre right, but its kind of unintuitive

seems to always align with the last selected, but is a bit weird when you're just trying to align thing in one direction

but thanks 🙂

it should really align with the first selected lol. but at least its consistent!

[timber knoll]

yeah it's a bit weird, but you get used to it 😄

[spice smelt]

what hotkey is that?

[timber knoll]

Q

[spice smelt]

❤️ thanks

finally my alignment ocd can be satisfied

[maiden wadi]

You would hate my blueprints. They're usually all one long line that is straight, but I clump up my stuff. Targets go on top of a node, arguments on the bottom under it.

[icy dragon]

In the end, it's cable management

[spice smelt]

I don't mind something like this, it's closer to actual coding

but this, this triggers me

[icy dragon]

Or PCB routing, if you use Electronic Nodes plugin

[spice smelt]

why can't it snap horizontally by default is beyond me

[maiden wadi]

It bugs me a little. But when you're on deadlines, you forget to give a shit about it. 😄

[spice smelt]

Sadly, my brain doesn't see it that way 👀

[timber knoll]

when you're on deadlines you spend more time fixing alignment than actual logic 👀

or is that just me 😅

[gentle urchin]

stuff everything in functions, then the alignment gets easier 😛

[spice smelt]

looks at current date, looks at what has been done in the last 5 minutes...
No, it's not just you

[maiden wadi]

A lot of my stuff just looks like this.

[zealous fog]

Not true, if you select a pair of nodes first with box select, and then the next pair of nodes it will also align in the same order as regularly but you need to use 2 box selects

[spice smelt]

I would just move the events to the left to avoid that "S"

but then again I do the same as you for accessing classes fields

[maiden wadi]

I like my arguments directly under. I dunno why, it makes it much easier for me to read through blueprints quickly.

[zealous fog]

I spent about the same time making my blueprints as I do making them look pretty

Spend*

[spice smelt]

I just whish vertical sequences didn't make those ugly Z lines

[gentle urchin]

Would be nice if they just ... auto combined somehow

[spice smelt]

yeah

[zealous fog]

Make it a pure condt function so it's just one small node 😎

[gentle urchin]

atleast untill you pull a function from it

[spice smelt]

I mean, would be nice if you could just smash C++ implementations to functions in blueprint classes

[gentle urchin]

wasnt there some plugin for that at some point

allowing c++ directly in bp?

[spice smelt]

due to the order in which UE compiles, I think it shouldn't be possible 🤔

[gentle urchin]

Nah you're probably right

[spice smelt]

all C++ is compiled before Blueprints afaik

[gentle urchin]

probably just mixing with some math expression node

[spice smelt]

same reason a C++ class can't inherit from a BP class

[gentle urchin]

<@&213101288538374145>

[torn kettle]

:no_entry_sign: scp-4092#2955 was banned.

[spice smelt]

lol that was quick

[gentle urchin]

SuperManny

[spice smelt]

i don't even get how do some people manage to fall for these, there's no tie to either discord or steam in the link

whatever

[gentle urchin]

you'd be surprised what people fall for

[icy dragon]

Steam elitists are not the smartest kinds either, those scams prey on those gullible among them, maybe still salty after Epic actually give away free 3 month Nitro.

[spice smelt]

smart steam elitists take everything that's free on epic, and pay for stuff on steam 😆

[whole viper]

my solution is prototyping with spaghetti and then converting to c++ 😄

[gentle urchin]

Same really 😂 works like a charm

still have spaghetti, just less visible

[spice smelt]

any idea why I can't "get lenses" from there?

[spice smelt]

if only I didn't have to mix my classes with existing bp stuff so much that I'd spend more time writing getters and setters than actual code...

[maiden wadi]

I move core logic to C++. But I dislike moving Userwidgets to C++ without a performance reason. There's no reason to have a C++ base class just for simple logic. Just clutters the project.

[icy dragon]

Yeah, BP wins on iteration speed.

[whole viper]

you probably need to break the struct

[spice smelt]

oh right

my brain just doesn't get that bp don't have the . operator lol

[whole viper]

yeah

[whole viper]

thats funny. I often do the opposite and end up making c++ classes for all my ui elements to override, so I don't have to do it later

[gentle urchin]

Did i understand it correctly that we no longer need to use ISM for SM's ? engine handles it automatically?

[whole viper]

its annoying to find out that you want to access a UI variable and find out its been defined in BP

so its less headaches to define all the variables in a C++ base class

[spice smelt]

tbh when it's about code-noncode interaction I think game maker handles it the best

you can literally put a code block inside blocks scopes

[whole viper]

but yeah I wish you could access BP variables without having to define them in CPP, it would remove so much boilerplate classes

[whole viper]

I found HISM didn't offer more performance for my game that had a lot of duplicated meshes. the automatic instancing seems to do a brilliant job.

[spice smelt]

sorry, what does HISM stand for?

[gentle urchin]

Perfect. I made ISM machine for my NPC's but maybe i could just leave them as regular static meshes then

[whole viper]

I built an entire HISM management system for my game, and decided to test it without and found it ran better

[gentle urchin]

ouch

then again, about time engine handles it i guess

[whole viper]

yeah wasted a couple weeks at least. but I was super glad that I wouldn't have to handle it moving forward

[gentle urchin]

I did the same 2 years ago, what a waste 😄

[whole viper]

It wasn't necessarily that the performance was worse. but the garbage collection is handled much better with the automatic instancing.

[vagrant flicker]

@gentle urchin How to add door rot variables into timeline like this?

[icy dragon]

HISM stands for 『HISM is not Instanced Static Mesh』

😛

[maiden wadi]

95% of my ui just gets added to screen. It populates itself from statics. I do have a couple of general base classes with general events that pass object references. But I don't use them often. My widgets with a base class do the same mostly. I just use it for c++ tick. Anything else is mostly an AHUD BIE.

[icy dragon]

Because nobody gives a damn at the question.

[gentle urchin]

door rot ?

[vagrant flicker]

Ye, in this Timeline you have Door Rotation X Z Y pins

Where is the select linked

[gentle urchin]

Was just a horrible name for the curve 😛

to the direction