blueprint

[manic wigeon]

instead of pausing it and resuming

but first parent character i have my character movement input. maybe its calling the pawn before hand?

[obtuse herald]

didn't you want that?

[manic wigeon]

no iwant the scene to pause on space and then if i press space again the scenematic continues

[obtuse herald]

then use the 'Pause' node instead of the 'Stop at Current Time' node

Inside your 'FirstPersonCharacter' blueprint

[manic wigeon]

still taking me to character instead of pausing the scene

[obtuse herald]

Replace

Stop with Pause

[manic wigeon]

it worked

thanks

[obtuse herald]

No problem

[woeful plaza]

Anyone knows why it would print "hellO" each second, but not "counting" ?

[woeful plaza]

Ah, nvm, it looks like you cannot use it with a event tick

[rain egret]

i have a performance related question, i have launched my project to test how heavy the ships are i created.
if 4 are moving it tanked the framerate from 230 to 150

how can i better the performance?

ticks are alread for everything disabled that doesnt use it

[pliant violet]

I am no expert, but you could check the rendering settings (shadows, polygons on those models), and see if playing with those cause it

The profiler is also recommended, though I haven't used it before: https://docs.unrealengine.com/4.27/en-US/TestingAndOptimization/PerformanceAndProfiling/Profiler/#:~:text=Enabling Profiler,-There are two&text=Run the UFE with the,then select the Profiler tab.

[rain egret]

thanks man i will give it a shot

[tight schooner]

@rain egret look into performance profiling starting with the "stat" commands (e.g. "stat unit") to narrow down the source of slowdown

[pliant violet]

Hey everyone, I have been searching UE answer hub but I am having trouble firing my projectiles in the direction my gun is facing. I figured using the forward vector would solve this. Anyone have experience with this?

(It is a double barrel on a top down ship shooter, so that is why I have a sequencer)

[tight schooner]

You may be able to "get world transform" directly @pliant violet

[rain egret]

this is how i got around the same issue pat

[pliant violet]

Thanks. I wanted to offset the projectile origin to the front of the barrel, my pawn doesn't have a socket.

[rain egret]

aim is just a scene component thats parented to the front of my barrel

[tight schooner]

@pliant violet you should be able to get world rotation instead of convert forward vec to rot

[pliant violet]

Ahhh I misunderstood you, thanks!

Dang still having some trouble, here is where it is now:

[tight schooner]

@pliant violet it looks correct to me. You should do some debugging like printing values and Draw Debug Sphere and stuff. Figure out where exactly the issue lies.

[pliant violet]

Will do!! Thanks everyone 🙂

[faint pasture]

@woeful plaza yeah you wouldn't want to set a timer on tick. That'd be like resetting the timer 60 times a second.

@rain egret what is moving the ships?

[woeful plaza]

Yeah, I had it on tick to setup a test, but got confused when it did the actual execute
But that only happens once, so it sort of makes sense

[faint pasture]

Just keep in mind the tick is just an event that runs every frame. Unless something has to update every frame, don't put it on tick.

[rain egret]

The ship is being moved by a floating pawn movement, the ship also has walls attached to it as well, like the wooden walls you see in the image are all separat

Furthermore, the framerate drops additionally if I turn around with the ship. So I assume it has to do with the attached actors

[faint pasture]

@rain egret show the output from stat GPU console command

Also show the output from stat unit, make sure both of these are done when it's in the real chuggy framerate

[rain egret]

well the fps went from 230 to 170, its not terrible but i want to know how i could improve it

[obtuse herald]

Game Thread seems to be the slowest

[rain egret]

What does that mean? I am very new when it comes to performance optimization

Both of these screenshots were made from launch

[obtuse herald]

Means it's not an issue with your graphics

[rain egret]

It could be the ship pawn having many attached objects it needs to move around

[obtuse herald]

you can try setting the ships movability to static if you think that's the issue

[faint pasture]

Yeah I would guess that it is between the floating pond movement and the ship Collision

[obtuse herald]

otherwise, I recommend you the Profiler

[faint pasture]

What type of collision does the ship at its attached actors have?

[obtuse herald]

gives you a shitton of information about everything that happens in the game thread and how long it took

[rain egret]

The ship has block all and is Objekt type dynamic movement, the ship parts are also block all and is obj type physics body.
The ship also ignores all the attached parts when moving

[obtuse herald]

do they simulate physics?

[rain egret]

Not if they are attached

[obtuse herald]

ok

I don't think it should be that much of a problem unless you have thousands of them

[rain egret]

That’s true

[obtuse herald]

Then it's time for the Profiler

[faint pasture]

@rain egret i mean simple collision or complex or what?

Is the movement component having to check collisions of a couple boxes or thousands of polygons, that's what I'm getting at

[rain egret]

Simple collision made from a procedural mesh

Just a couple of boxes

The ship is made out of a steel beam wireframe

[faint pasture]

Yeah at this point, profile it. If anything touches blueprint on tick, that could be enough to get you down to 170 frames.

[obtuse herald]

This neatly explains the basics of the Profiler: https://www.unrealengine.com/en-US/blog/how-to-improve-game-thread-cpu-performance

[faint pasture]

Math in BP is ass slow

[rain egret]

The ship has no smart maths to do, just movement controls that consist of turning and flying forward backwards

[faint pasture]

Profile it and find the bottleneck. I had a function go from 2ms to 0.02 by moving some math to c++ lol. Although the fact that it's worse when moving makes me think collision system. Check if there's some settings to play with there.

[rain egret]

Okay, I also have a small issue that consists of the ship pawn jittering when moving and the player is standing on top.
The ship also ignores the player when moving

Jittering gets worse the faster the ship is

[tight schooner]

Make sure you're not playing-in-editor too. Perf can be quite different between play-in-editor, standalone preview, and packaged. (I get the impression that BP execution is especially slow in PIE. Also, sometimes drawing stat overlays impacts the framerate lol.)

[rain egret]

Oh for sure, I have a on clicked event bound to something and this only works when I play in a new window

[tight schooner]

well that seems buggy

I just meant don't take perf metrics too seriously within PIE

[rain egret]

Mmm pie

[rare gale]

Is there any way to get an ActorComponent Blueprint to see and use macros from my MacroLib? I can't see them for some reason.

[gentle urchin]

I found that using object as parent class for my macro lib gave me global access to it

[rare gale]

hmmm, is that going to break everything if I go from actor to object now? I'll give it a shot after checking in and backing up. 🙂

[snow harness]

Anyone with Behavior Tree experience?
I'm not seeing any way to store an actor array in the Blackboard.
It's possible to create a single object variable, but not an array.
Looking around online suggested just storing the array variable on a casted actor, but I'm trying to keep this BTtask actor-agnostic if I can.

[rare gale]

@gentle urchin was it called "Object" or something else? I don't see that option. It's currently an Actor

[gentle urchin]

I'll double check

[rare gale]

It's the parent of all options in the list when making a new one... not available as I can see if I try to change over the current Actor version 😦

Object does what I want though, so I guess I have my day planned for me 😉

[gentle urchin]

hehe not what you had planned already i guess

[rare gale]

Oh, nice... it even works in UMG. Didn't know that part was even possible. Thanks for the heads up. This is great, even if I have to manually transfer a ton of stuff.

[gentle urchin]

probably has some downsides, i just dont know of any

😄

[obtuse herald]

UObjects don't have a World Context, which disables various functions like spawning and retrieving AActors, delay nodes and some other stuff I can't remember right now.

[rare gale]

Yeah, I'm finding some weirdness now. Can't access PlayerCharacter, PlayerController, etc. Not sure if there are workarounds. Also, couldn't save because it said the macro was part of an external graph?

[gentle urchin]

Can one not input the needed ref's in such a case?

[obtuse herald]

You can

but you're probably better of by just using a function library instead

[rare gale]

Maybe, I just like to keep that stuff clean so include it in my macro graph since I'm not doing anything too crazy

[gentle urchin]

That is also an option ofc

[rare gale]

Is a a function lib accessible more places?

[obtuse herald]

in every place

[rare gale]

One thing I like about macros is multiple execution paths

[obtuse herald]

function libaries can't delay (no latent actions) and only have 1 exec in and 1 exec out

or they are pure, then they don't have an exec pin

[rare gale]

maybe I need to split some of these things out so I have a little of both

[obsidian pelican]

@hardy fable @obtuse herald so I tried the two ideas of yours. The thing with the index as filename didn't worked, the custom loop with and counter and decreasing it after a delay and jump to the beginning again works

It has something with the frames

[covert arrow]

hey guys are structs more efficient in keeping certain types of variables for instance. Movement speed we can have walk, run, crouch speeds in a struct then add it to the player or is it better to have it on the character as global variables?

ok thank you.

oh i see so for switching movement configs it is better to use structs, data tables, data assets etc.

but there is no performance difference.

[gloomy cypress]

I feel so stupid how the f have I gone nearly a whole year without knowing about the math expression node.

[lofty hound]

Why is data not being transferred between levels in my game instance? it works fine when starting game on either level but when opening lvl from previous level is doesnt load correct data? Am i not understanding how the instance works correctly#~?

[silk hinge]

Hey, I'm looking for a way into a menu to cast on the players that is tapping on a button,
For exemple, I tap on a button, cast to player, run a function from the player, any easy way to do this ? 🙂

[craggy turret]

So I seem to have a problem with flying. Whenever im in fly mode and i use any input key to modify any axis, the character just slides in the last direction pressed. any way to fix this?

[gentle urchin]

players? only local player(s) can touch ui buttons 😮

[rain egret]

okay i have got a ubdate with the jittering, the jittering only occures if i am standing on the attached actors

if i stand on the beam, which is the ships pawn, theres no jittering

[clear sierra]

Can we use Execute Console Command in shipping builds ?

[tight schooner]

I believe so?

[wet cape]

Hi everyone. I have a modular construction blueprint very similar to this one.
https://www.youtube.com/watch?v=LlXpcglQkr8
There are a few out there like this, but what I need now is one that can specify another blueprint instead of only a static mesh. For example, imagine I'm making a fence and every so often I want to also add a street light and has an actual area light. I would want that configuration in a separate blueprint. I want to be able to drag out a line of these.
Has anyone seen anything like this or knows if this is even possible?

[silk hinge]

ah yeah like Char blueprint

[wet cape]

I know I can reference a bp inside another bp. To be specific, I don't know what nodes to replace these with so that it accepts a blueprint instead of a static mesh.

[trim matrix]

Hello. I've tried to make a object get destroyed when colliding, however, it doesn't work. I have this:

When I try it with Box Trigger, it works successfully. What's the problem?

[vast kindle]

Hey everyone - got a quick question - is there a way to import or mass enter in values for a map variable?

I am trying to create a giant listing of every item name (across a few different data tables) mapped to the quality of the item. So that when it comes to randomizing, I can have it pull randomly from the list based on quality, and grab the item name from it.

[spice ibex]

I am spawning a level instance in my master level. The spawned level instance has a level sequence in it. The sequence is supposed to play after the level instance gets loaded. Everything runs fine but the movement tracks in the sequence do not work, i.e. the sequence cannot move the actors. any ideas why that would be happening?

[brazen pike]

(Obligatory only been using UE4 for a couple months) but it looks like you are using the wrong node here. I think what you are looking for is EventHit.

Event beginoverlap would only work for a box trigger because a box trigger has no collision. So you can walk right through it. In other words, your character mesh would overlap with the box trigger. But if a cube has collision, you wouldn't be able to walk inside it, or overlap it.

[brazen pike]

Maybe instead of a static mesh, you could make a new BP with only a static mesh component in it... it would function the same as a mesh and you'd be able to switch it with another BP when you wanted to

[hardy tide]

Hi there, i started developing a scroll shoot em up game (Rtype style) and im having a bit of trouble, only been using U4 for a couple of months and did a course, so bear with lol,

What im trying to do is on the Player BP (the ship) when i move up or down, for the ship to slightly pitch rotate on each direction as im holding the button and then once i let go to go back to its original rotation position. (i was thinking of doing so with a timeline, but the axis input doesnt have the "depressed" button setting.

I tried to make axis-less inputs but they dont "loop" as i hold the button, so in theory id have to mash the button to go anywhere so that plan went out the window.

Any ideas? Thanks!

This was the plan:

[sleek urchin]

Is there anyway to create a tuple using bp's?

[pale blade]

Is there any way to automatically delete unconnected reroute nodes?
Some of my blueprints are spaghetti and I really want to use reroute nodes but I just can't stand these hidden unconnected reroute nodes. They are practically invisible

[zealous moth]

@rain egret did you ever figure out how to ride stuff? Looks like it here. The jitter iw due to thebfact that it is 1 frame off in terms of sync movement.

[rain egret]

yes i had to disable movement and use the attach to node. sometimes its the simplest things that cause me headache

the 1 frame synch issue, is there a way to fix this?

while its not as noticeable when its slow, its a thorn id rather get rid off

also, i dont know if i have mentioned this, but the jitterig occures on the ship and not the player character

[deep imp]

I love macros

[worthy tendon]

struct

[winter kettle]

If I have something like this, will the sequence wait for the delay on the first pin to execute the second pin?

[dawn gazelle]

No

[civic briar]

Adding force to the player by getting forward vector. This obviously causes the character to move up/ down like you are flying ( because my character is hovering)

How can i limit this to only the forward (Yaw) value ? So that if i look down and turn, the value is still forward to the face of the player but not effecting the pitch

Nevermind. Figured it out

[drowsy osprey]

Has anyone ever gotten an event dispatcher to work from "Sequence director", IE using the event track, to trigger and event in a Level or Character BP? I'm at a loss for what to link as the "target" on the bind side in the level BP. Would be super helpful for me to be able to just use Event Dispatchers for most of what I'm doing since it's so fast and efficient.

[trim matrix]

Right, worked. Thank you.

[uncut lark]

So if I wanted a weapon system for multiple weapons that share the same stats, Id want to go towards an actor child class system, right?

[eternal reef]

@uncut lark I'd say so, yes. Just make sure how you want to structure it. The earlier you have a rough plan the less you have to re-adjust which I had to do a few times based on child hierarchy

[burnt dew]

Hello,
Is there any documentation for blueprint node, with all nodes documented? similar to documentation for code? (something more useful then the one unreal have)

Edit: I should rephrase that, unreals bp doc is useful, but i find it a bit hard to get a good overview.

[trim matrix]

This only works with one object instance. How can I make it work with all instances of that type?

If I choose "No debug object selected", nothing works.

And with only one specific object, it does.

[spark steppe]

it isn't supposed to work with multiple objects at the same time

you can add a breakpoint to one of the nodes, if you need more detailed debugging

then it will pause execution there and tell you on which object the code was executed

[trim matrix]

How can I achieve the functionality of Unity's "Prefabs"?

If you are comfortable with Unity - of course.

A blueprint class is apparently the equivalent of Prefabs?

[maiden wadi]

@trim matrix I don't know anything about Unity, but judging from the Prefab explanation, it's just a basic Actor class in Unreal. Actor class allows the attachment of components which can be static meshes, collision objects, particles, etc. And if you change this on the base class, it'll be changed on everything.

[spark steppe]

i don't know anything about unity (beat me to it authaer :D)

[maiden wadi]

It's worth noting that Unreal has a plugin somewhere called Prefabrictor I think. Which is a little different.

Pretty sure that's a paid plugin though.

[sharp fox]

Can i reset camera rotation to original camera rotation in first person?

My blueprint doesn't reset yaw rotation https://imgur.com/a/1yi18Ap

[sharp fox]

I figured out that i have to set "Use controller rotation yaw" to false to set my yaw rotation to original but i don't wonna have this option set for whole game, becouse i use first person, but when i use that blueprint then it still doesn't work https://imgur.com/a/CptLP6U

[arctic moat]

Hello, so i have this blueprint for a projectile where when the it explodes, it applies radial damage. When i select "Should Bounce" in the projectile movement, how can i set it so if the project hits the actor, it explodes on impact, but if it misses the actor, it bounces like normal.

[honest wolf]

Attach your camera to another actor and try again. Also check if "Use Pawn Control Rotation" is disabled.

[sharp fox]

when i disable use pawn control rotation then i can't move camera upwards

https://imgur.com/a/qKRE1rL

[honest wolf]

Do you use the SpringArm for anything?

[sharp fox]

yes

[honest wolf]

Then make sure use pawn control rotation is on for the springarm, but off for the camera

[sharp fox]

still doesn't set my yaw to original yaw

[honest wolf]

Can you describe what you use the spring arm for in a first-person game?

[sharp fox]

for holding camera (i know thats weird) but i will show you, i make a video

https://imgur.com/a/Unc0V3A

[honest wolf]

I don't really see what you use the spring arm for. Can you elaborate?

[sharp fox]

i really don't know i just have it there, i set arm length to 0

[honest wolf]

^

[sharp fox]

i did and i need to set use pawn control rotation to on becaouse when its off i can't move my camera up

but it still doesn't work

i can't rotate my camera up and down thats what i meant

[honest wolf]

When I initially made our first person framework I had lots of issues with rotations, that's why I ended up not directly altering the camera at all

I have a parent actor and only manipulate that

[sharp fox]

so i need to add (scene) component and attach camera to it and move scene component? not the camera?

[honest wolf]

Yes

[sharp fox]

ok ill try

but whats difference between set relative rotation and set world rotation?

[honest wolf]

Relative location changes the rotation relative to its parent actor

World rotation changes the absolute rotation of it in world space

[sharp fox]

ok now it totally doesn't work

[honest wolf]

Maybe it would be easier to describe what you try to achieve first

[sharp fox]

i need to teleport player in front of trash can (i did that) and then reset camera rotation and set camera location inside trash bin

[obtuse herald]

spawn a new camera for that?

[honest wolf]

Are they sort of hiding in there?

Can they move?

[sharp fox]

no i mean i did the teleport blueprint and i did the camera location set in trash bin but i can't do reset camera rotation

[honest wolf]

I was more wondering about the gameplay you want to achieve

If the player is in the trash bin to hide for example, and can't move. It would make more sense to make the trashcan a pawn with its own camera that you just possess.

[sharp fox]

the homeless man and i tried to do trash can searching

[obtuse herald]

sounds like anim montage for me

[fathom spindle]

hey, can anyone remind me how to get a linetrace to test against the actual polygons of a skeletal mesh and not the capsule component? its been awhile since i used unreal and im stuck on it

[sharp fox]

i don't have player mesh, my player mesh is just air

[obtuse herald]

tick 'Use Complex Collision'

[hazy igloo]

Do you know https://docs.unrealengine.com/4.27/en-US/Basics/UnrealEngineForUnityDevs/ ?

Perhaps it can help

[sharp fox]

ok now my camera rotation is reseting but only in pitch, not in yaw

[fleet heron]

please tell me how to make the movement of wagons between trains? take one wagon with the mouse and insert it between the other two wagons.😢

[rain egret]

hey man, forgot to actually write a response so i am not sure if you read my reply.
the riding issue was fixed with attach to and disabling movement.
you mentioned it jitters because the movement is 1 frame off in terms of synching, what can i do against that?

[arctic moat]

im struggling with my projectiles. I have a grenade launcher. Everything works until it hits the player. If it hits the player, it just bounces off. I want it so if it hits the player, it explodes on impact, but if it doesnt hit the player, it will bounce like normal. How can i implement that to here?

[honest wolf]

Split the Hit Result and check if the Actor that was hit is the player

[arctic moat]

i've tried that and it didn't work

i tried this, it doesnt work :/

[honest wolf]

You should check If Hit Actor == Player first to begin with

[arctic moat]

how do i do that?

[honest wolf]

Get the player Pawn and use a equal-comparision node and a branch

[spark steppe]

that's a server side event

[honest wolf]

Also double check your collision settings

[spark steppe]

so most likely there isn't only one player

[arctic moat]

its a multiplayer game

so like, if player 1 shoots the grenade launcher, it bounces off player 2

[honest wolf]

Then check if the actor is of type of your player class

I'd recommend checking the ShooterGame sample for examples

[arctic moat]

i might just leave it.

just seems too complicated

[honest wolf]

Maybe try starting with something easier.

[arctic moat]

when i check "should bounce" off, it explodes on impact

only when bounce is on, it ignores exploding on the actor, but when it hits the ground, after a set time it explodes

[honest wolf]

There should be an "On Projectile Bounce" event which you can leverage.

[arctic moat]

gimme a second, trying to upload a video about it

i can take the low effort route and keep "should bounce" disabled

but would be nice to have it bounce as well as hit the player on impact

[honest wolf]

Hook on the Projectile Bounce Event, check if you bounced on a player, and if yes, force the explosion

[arctic moat]

so far i have this as my OnProjectileBounce

[honest wolf]

Break the Impact Result, check if the Hit Actor is a player (by casting or checking the class), and if yes, do the explosion

[arctic moat]

like this? or am i missing something?

[honest wolf]

You should check if the actor you try to apply damage to is a player

[arctic moat]

isnt that what "hit actor" is tho?

[honest wolf]

Hit Actor can be any actor

Could be a wall

[arctic moat]

so like this?

[honest wolf]

That should do the trick, although you should destroy the particle after you've done the explosion (not sure if apply damage will do that for you)

[arctic moat]

nope, still not doing what i want it to :/

[honest wolf]

Have you checked with a breakpoint if it gets called?

[arctic moat]

like a branch?

[honest wolf]

Click the Apply Damage node and press F9

then start the session

If it gets called, your session should be paused

and it jumps to the node

[arctic moat]

oh right

yeah

everything paused

[honest wolf]

So, what is the behaviour you would expect compared to what is actually happening?

Is there no explosion? Is the damage not applied?

[arctic moat]

i expect it to explode on impact, dealing the damage.

i can record another video

easier to see it visually

oh wait

i forgot i added a spawn protection thing so the player can't get damaged if they're hit 🤦‍♂️

[honest wolf]

:D

[arctic moat]

oh wow

yeah

it works

thanks so much @honest wolf :D 👍

[honest wolf]

Anytime!

[arctic moat]

i always feel so silly when the solution can be that simple 🤦‍♂️

[honest wolf]

I once spent two days re-creating an entire component because I missed a wrongly set checkbox

Stuff like that happens

The important thing is to learn from it and implement measurements that prevent such things from happening again

Which in this case was to add some sort of verification system that forces the session to quit when wrong conditions are present

[arctic moat]

ooof. Well i hope you managed to get it working!

[honest wolf]

Yeah, it's all working now haha.

[arctic moat]

nice!

[acoustic hatch]

Hi do anyone knows how to fix my player is rotated after vaulting

I followed 3 tutorials on YT all of them results to having my character rotated either on the X or Y

[honest wolf]

Can you share your setup?

A screenshot of your rotating blueprint should be a good start!

[acoustic hatch]

https://blueprintue.com/blueprint/fystu63l/

[honest wolf]

I assume you create a spline when vaulting?

[burnt grove]

Hey guys, I'm trying to make a world map using an orthographic scene capture. On top of that, I would like to display location indicators. How do I get 2D coordinates of world locations?

[acoustic hatch]

What is that

[honest wolf]

https://docs.unrealengine.com/4.27/en-US/BlueprintAPI/Utilities/ProjectWorldtoScreen/

[honest wolf]

A spline is basically a path you make with markers for positional data

[burnt grove]

@honest wolf This would project to the actual viewport, not to the render target?

[acoustic hatch]

How can I not create that

[honest wolf]

not create? You mean you don't want to use a spline?

[honest wolf]

I think so, yes.

[acoustic hatch]

I'm so dumb I'm new to this so sorry can't understand much

[honest wolf]

You could copy the logic though and just make use your render target instead.

[acoustic hatch]

Could the animation be the problem? @honest wolf

I use my own animation from mixamo instead of the one within the tutorial's description

[honest wolf]

No problem. Here is an approach of how to implement vaulting that I used in the past:

• Get the actor / object you want to vault and it's bounds (iirc the function is called Get Actor Array bounds)
• Calculate the distance you need to travel (formula I used was: Distance Relative To Velocity * 2 + Y from the Bounds)
• Calculate the end position (formula I used was: Position before Vaulting + New Vector made of ( X = X from Actor Forward Vector * Vaulting Distance, Y = Y from Actor Forward Vector * Vaulting Distance)
• Create spline with three points:
• • 1 (Start): Position before vaulting
• • 2 (Middle): (Start + End) / 2 + New Vector (Z = Height of your Actor)
• • 3 (End): End position calculated previously

I used two float curves for rotation animation length and lerped between 0 and 22 (Yaw) (can be any number) and position animation length

[acoustic hatch]

Ok thanks, I'll try to get a use of that

[honest wolf]

Formula for Distance Relative To Velocity: Lerp between 100 and 160 using Player Velocity / Max Walk Speed

Those numbers are just chosen on how they feel ingame

Smaller numbers would mean a shorter jump

[safe iron]

Hey guys, I need yet again some help, this time is a little simpler problem though, I wanted to implement a feature that makes the player view slightly tilt left or right when you are moving sideways, like in Quake or in Serious Sam, and I kinda managed to implement that, using a rotator, a set relative rotation node that has the First Person Camera as target and using the Axis Value float on the InputAxis Move Right node to set the angle at which the camera rotates, I'll send yu a photo of the code. As I said it kinda works, but the problem is that to get the effect working I had to disable Use Pawn Control Rotation, which makes impossible to turn Up and Down, and allows the player to only turn left or right, how do I fix it? Thanks in advance

[honest wolf]

Make a new scene component and attach the camera to that. Instead of rotating the camera, rotate the scene component

Do not use a Spline Component

[safe iron]

Oh, ok, thanks 😄

[honest wolf]

unless you actually need one that is

[honest wolf]

Keep in mind that with your current setup your meshes will move with your camera. You may want to seperate them if you can't achieve the effect you want.

[safe iron]

Hmm, still doesn't work, by rotating the component wither the camera doesn't rotate (Use Pawn Control Rotation on) or it rotates but it can't look up or down (Use Pawn Control Rotation off), I tried disconnecting the rotation node and with Use Pawn Control Rotation off it still can't rotate Up or down, has to deal with that specific setting

[honest wolf]

PCR should be off, what is your code looking like for updating the rotation of the scene component?

[safe iron]

This is it, I just added a set relative rotation plugged with a rotator and the Axis Value from the Input Event

[honest wolf]

Hmm, works for me (although on x2 you don't see much, x20 is more visible)

though not very smooth

[craggy turret]

So I have a dash set to Q. I also have a flying mode and I made the dash work only in flying mode. I want to lose stamina, like a lot of it everytime I dash, for now its set to 1. The problem is, even if I press really quick it still uses a lot of stamina and it keeps dashing as long as I keep the button pressed.

[honest wolf]

Do you have a video example of what you try to achieve?

[honest wolf]

Use a Do Once node and Reset it when you release the button

[craggy turret]

Ok lemme see

[safe iron]

I'll hop into Quake and take a small video, brb

[craggy turret]

i have something else on released

a lot of checks

my code is spagheettti 😄

[honest wolf]

Hmm, I'd clean that first then so it's easier to debug. You may have some other code that causes a loop for example

Disregard my DoOnce idea.

[craggy turret]

this is whats on released

last one is flying

[honest wolf]

You could add another node to the sequence, but I'd rather figure out why it keeps dashing when you hold it

Since "Pressed" should only fire once when held.

[craggy turret]

ill look closer thanks

[safe iron]

This is the video, when I move sideways the player camera tilts

[honest wolf]

Ahhh

[craggy turret]

oh so you mean I should go from sequence to reset

[honest wolf]

That's a bit more complex then. Using a simple "Add Rotation" won't make it that smooth

[safe iron]

Yeah, I planned to use a timeline

[honest wolf]

Please disregard my DoOnce idea, try to figure out why it keeps dashing when holding down first.

DoOnce shouldnt be needed here.

[safe iron]

I just used a simple set rotation as a simple code to verify everything was working, then I would have added the timeline to smooth it

[craggy turret]

its weird bcs i only have a lot of checks

for stamina and for flying

nothing else

[honest wolf]

I added this for the MoveRight event (Center Actor would be the actor you added for the camera)

[craggy turret]

im using launch characters if that matters

[honest wolf]

Which results in this

[craggy turret]

launch character that onyl launches horizontally

[honest wolf]

Can you record a video of your issue?

[craggy turret]

yas

[safe iron]

Ok, lemme restart UE5 in a sec

[craggy turret]

what software are you using

to record

[honest wolf]

ShareX

[safe iron]

here is the video, the resolution is low cause I use a separate window to test the game, only way to get good performance (GTX 1650), also, I have no idea why it's so laggy

As you can see the camera tilts as it should, but when I move the mouse up or down, the camera does not rotate, so I am stuck in a Doom 1993 like visual where I can only turn left or right, not up or down

PCR is off, whenever I turn it off this issue occours, when I turn it on I can look up and down, but the tilting effect is gone :/

[craggy turret]

I set it so it doesn't dash if stamina is below 50

but even then it keeps removing stamina

and it somehow goes into negative

[honest wolf]

Can you post a screenshot of the full Components tab of the character blueprint?

like this

[craggy turret]

so basically my code is Press Q--> Check if Player is flying then if stamina is less or equal to 100 and if it is above 50 launch character.

I also have an event tick where it removes stamina if Burst is checked, and it does that when the Q button is pressed

[honest wolf]

I have trouble reading your blueprint code, would you mind making it more readable first and post another screenshot(s)?

[craggy turret]

yeah ill make some more since its messy

[honest wolf]

I recommend using comment boxes, equal spacing between nodes and re-route nodes for greater readablity.

[lofty hound]

Wondering if anyone can help me regarding the game instance. I’m making a turn based combat game with an overworld that spawns into a battle so upon the execution of the battle from the overworld. Similar to Pokemon the player has a party of 3 characters that are set via menu widgets by the player once the game has started and the party details are all stored in the instance in the hope that it would carry over to the battle map level when that is opened. Now this all works fine when starting the game you can use the menu to set your party and all info is correct until I launch the battle level (which opens a new level) and none of the party data is being carried over to the new level. But certain other bits of data are. Any ideas? Am I using the instance wrong ?

[honest wolf]

What are your settings here?

[safe iron]

Like yours, Yaw is the only one on

Oh I get it

[honest wolf]

Is your GameInstance overridden in the world settings?

[safe iron]

I feel like a dumbass

Now it works

[honest wolf]

What was the issue?

[safe iron]

Use controller rotation pitch was off

._. I didn't even think the pawn itself had settings

[safe iron]

Thanks a lot

[craggy turret]

and this removes stamina

[honest wolf]

So you want the character to keep flying when they release the button, but still have enough stamina?

[craggy turret]

Basically, I want the character to be able to dash a few times, until stamina reaches 50. from then they have to wait until they have enough stamina to dash again

i put on relealse to set movement mode flying because it kept hovering in mid air

[honest wolf]

You should check if (Stamina - 50 < 0) and if yes, set stamina to 0 instead.

[craggy turret]

after i pressed Q

[lofty hound]

You mean is it set in the project setting under map and modes?

[honest wolf]

I mean here.

nvm

I'm stupid

you can't override it there

But yeah, is it set in the project settings?

[lofty hound]

It is set yeah

[honest wolf]

Can you show how you store data in the game instance and try to retrieve it after the level has switched?

[craggy turret]

I did this but even if I use press the button slightly the stamina reduces by 70

[honest wolf]

That's because you use Event Tick. It's called (at 120 FPS), 120 times per second.

You want to reduce stamina when the Dash is called instead.

[craggy turret]

yeah i figured that is the problem

i just didnt know how to yknow, use something else

how do I do that? xD

[honest wolf]

Move the Stamina check to before the Sequence at your Pressed Event

If there is not enough stamina to begin with, why bother do anything :D

[craggy turret]

true

so this is what you mean

[honest wolf]

I'd remove all the branches you are not using right now, it just adds visual clutter, making it harder to debug.

[craggy turret]

wait no

the ignore input ones you mean

[honest wolf]

Yeah

[craggy turret]

something like this then

[scenic kindle]

Hey. I'm trying to save a variable to a game instance from another blueprint but I can't connect "Target" because "Game Instance Object Reference is not compatible with Game Instance Object Reference". anyone know why?

[craggy turret]

it still goes down by 70

[honest wolf]

Show your reduction logic again please

Is it still in Event Tick?

[craggy turret]

yeah

[honest wolf]

Move it to the InputAction

[craggy turret]

with the sequence or separate?

so i did it with the sequence and it works

thanks ^_^ what a life saver

such an easy fix too

[honest wolf]

The start of your InputAction Burst should look something like this

You can use "InRange" to check if its between 2 numbers btw

instead of two branches with > and <

[craggy turret]

this makes more sense

[honest wolf]

After using "Get Game Instace", cast it to your gameinstance name

Then using "As YOURNAME Game Instance" set the variable

[craggy turret]

Now It can use the dash even if stamina is slightly above 50 but its not a bug its a feature

😄

[honest wolf]

You don't want that?

[craggy turret]

Not exactly but its fine as long as it cant be spammed

ill just add more stamina cost

[honest wolf]

You shouldn't be able to with the new code.

Or, if you want to prevent spam while there is enough stamina, add a cooldown

[craggy turret]

i didnt add the inrange thing

yeah i was going to get on the cd after i figured why it uses too much stamina

[honest wolf]

There are multiple ways of doing a cooldown:

• You could use the Gameplay Ability System. (may be overkill)
• You could save the DateTime when it was last used and check if X seconds have passed.
• You could use a timeline (not sure about performance)

[craggy turret]

i was thinking of using delays

and branches

😄

[honest wolf]

That would be more expensive, performance-wise.

[craggy turret]

then i dont want that

[scenic kindle]

And another thing. the Open Level node doesn't work.

[honest wolf]

In editor or in a cooked build?

[craggy turret]

Make DateTime?

[honest wolf]

It's a variable type

[craggy turret]

oh the blue one

[scenic kindle]

in the editor. basically what i want is when i overlap a box collision it saves a variable to a game instance and opens a level.

when i do it like this it works

[honest wolf]

And when is it not working?

[scenic kindle]

but when i do this it doesn't work

[craggy turret]

what do i set the value as

[honest wolf]

Did you check if the node is actually called with a breakpoint?

I'd assume the cast fails.

[scenic kindle]

yeah the cast fails but idk why

[dawn gazelle]

Your game isn't set to use ResourceGameInstance if the cast fails.

[honest wolf]

You set it as "Now" when the dash was made and check if enough time has past like this.

[craggy turret]

Oh I also have another weird problem. In fly mode when I press any input after the action is done it keeps sliding

[scenic kindle]

i just want it to store a variable in the game instance, then open the level, then load the game instance. how would i do that?

[honest wolf]

Check your project settings.

[dawn gazelle]

How you're doing it is fine, but you need to set the game to use your custom game instance.

[scenic kindle]

ooooooohhhhhh it works thanks.

what's the difference between add to viewport and add to player screen?

[dawn gazelle]

add to player screen is if you're doing split screen stuff.

[scenic kindle]

oh. makes sense. so it's basically to show a ui for a specific player?

[dawn gazelle]

So if you had local multiplayer and you wanted each player to have their own HUD, you'd need to use add to player screen.

[scenic kindle]

oh cuz then it would just overlay it on the whole viewport instead of the player's square. i get it.

[craggy turret]

tbh i dont understand wahts going on

I mean I kinda do

I dont know how to connect this to my code

Thanks for all the help now im 1 step forward to my goal

[lofty hound]

This is where i set the variables with reference to instance

[lofty hound]

This is being called from new level through a battlemanager

[honest wolf]

Have you verified the set calls by checking if the cast to your instance class is successful?

[lofty hound]

yeah cast works fine

[honest wolf]

Your game is singleplayer, right?

[lofty hound]

yes single player

[honest wolf]

Of what type is "Party Slot 1" ?

[lofty hound]

its weird though because it all works absolutely fine until new level is loaded. like all functionality seems to execute fine until, i can set the party slots and pull the correct data from them after the fact but as soon as i load the new level it doesn't acknowledge the chances made for certain variables

its an object reference to the base class of my characters

[honest wolf]

Ah, see, the problem is that you can not save references as they'll be invalidated when the first level is unloaded

Rather than saving a reference, save the class name or another identifier.

If it's a more complex object with data, you might need more complex serialization

[indigo bough]

Hey folks, how would I set the bReturnPhysicalMaterial as a part of a PredictProjectilePath? Or is this something I need to set in the hit object/phys material?

[lofty hound]

So the party slot needs to be a class reference?

[honest wolf]

If possible. If not (since you allow, e.g. customizations to the selection) you need to seralize it yourself, save it, and load it.

[honest wolf]

The FCollisionQueryParams used by PredictProjectilePath are hardcoded, sadly.

https://docs.unrealengine.com/4.26/en-US/API/Runtime/Engine/Kismet/FPredictProjectilePathParams/ The params you can set can be found here.

[indigo bough]

Damn okay, wondering how to get around that then. I'll do some reading. Thanks!

[honest wolf]

You could try taking the Hit Component, call Get Material, on that Get Physical Material

[indigo bough]

Haha, just tried that! But yeah it's returning null. Might be something wrong in my setup elsewhere causing this though. I'll keep at it 🙂

[lofty hound]

As in save to a save game BP?

[honest wolf]

Save to disk for example, though I feel like there is a better solution for this out there. I'm just not aware of it right now.

[indigo bough]

Ahh, I was using "Get Material by Face Index", just getting the component material works. Only issue is multi-material components of course. Enough of a solution for now anyway. Thanks again!

[honest wolf]

Any time! For multi-materials another workaround could be to cast a linetrace yourself to that hit location and use that hit result instead.

[indigo bough]

Good idea, I'll set that up 🙂

[lofty hound]

So i changed to class reference rather than object reference and have the same problem

Would the instance save the class of the actor object to the next level if the actor object doesnt exist in the next level?

[last siren]

Is there a function to take a transform+mesh and see what it would overlap/collide with, without spawning a temp actor with a mesh component to use (actor->GetOverlappingComponent)?

[gentle urchin]

There's debug shapes ? If that could help

[drowsy osprey]

Has anyone had any luck using event dispatchers out of “sequence director” on event track? Can’t seem to figure out what sequence Director needs to point to to target. 🤔

Trying to hit either character or level bp.

[last siren]

Not to draw, just want to test if a map area is clear enough of obstructions before spawning in some things. I could make a box/sphere/capsule I guess but a mesh is a more flexible shape

[gentle urchin]

Ah ok ok, didnt quite get the use case ^^ but for sure, a mesh is way more flexible!

[white lynx]

Is there a way to force blueprint classes to always open with full blueprint editor even if it's a read/data only bp?

[crimson hornet]

Does anyone know why this is not working?

[crimson hornet]

This is in the widget where I click on a button and I will remove the widget and set the mode to game mode only

[crimson hornet]

This is in the player controller class. Here I set if I click "escape" the options menu will show and UI mode only

[rare gale]

Did you ever get an answer here? I'm not sure I understand what you're asking in the first place. When you ask how to make it work with all instances, what do you mean by work? The graph will only update when the code for that specific instance is run. So, if you set that dropdown to look at Coin5, but collect Coin4 you won't see it run. You should see the Print String from Coin4 on-screen though. Each version of a coin you place in the world should work the same, the editor graph will only update or be active when the specifically selected version is affected though.

[trim matrix]

Yeah, I got it working. Thanks for the explanation.

[dawn gazelle]

What's not working about it?

[crimson hornet]

the mode stays on UI mode only

and the widget wont go away

[glossy bane]

Do instanced static meshes somehow get a different collision than the static mesh that is assigned to them? I have assigned simple box collisions on the static meshes but when I spawn the instanced meshes they seem to instead be using a complex collision

[dawn gazelle]

Are you getting error messages at all? Notably, you have an "Options Widget" reference within your widget, perhaps you mean to just have it use "self" as a reference if that clicked event is within the widget itself.

[crimson hornet]

Im not getting any errors

[crimson hornet]

Ill try that

Well it worked thanks!

[rancid current]

Is there anything wrong in this? It runs and it makes the line traces but it doesnt make an impact point even when it intersects with things

[trim matrix]

Hey I wanna try building a game in UE, I only know javascript so would blueprints be an easy starting point for a 2d/3D game?

[rancid current]

Starting point yeah but if you get serious you WILL need to learn C++

[indigo bough]

I'm doing a looping bounce arc calculation for my projectile after each consecutive hit, but unless I limit bounce count or put a higher than ideal minimum velocity, I get a crash from 'infinite loop'. Any other way around this? I don't really want to stop bouncing if the projectile still has valid velocity to bounce further than an arbitrary bounce count limit.

[trim matrix]

Oh yeah of course, just for the first few

[rancid current]

You could try adding a .01 second delay before the area it says is an infinite loop

[rancid current]

Yeah BP is a great language for beginners, it's very capable but fairly slow as you would expect.

[indigo bough]

Ahh yeah, that solves it, though now I can actually get those infinite loops. Wondering how to avoid that. I'm multiplying by surface restitution (.3 atm) every time, so how it's staying at a certain velocity, I'm not sure. Anyway, thanks for the tip! 🙂

[rancid current]

I don't have any ideas on how to do that off the top of my head, good luck

[quasi frost]

So I am taking all of a set of widgets from a grid and saving them to a temporary array before wiping the original array and then reloading them from the temporary array. However, variables from the widgets in the temporary array are reset to their default value. Is there some way to save the value of variables when moving widgets between arrays? Am I simply doing it wrong here?

[maiden wadi]

@quasi frost What you're doing wouldn't reset variables. What might is if you're doing something with them on Construct, or PreConstruct.

[trim matrix]

Also are blueprints good for 2d games?

[quasi frost]

Oh you are absolutely correct. I can't believe I over looked that. Simple boolean fixed that, thanks!

[indigo bough]

Could anyone tell me what the launch velocity here is measured in? I would have thought m/s, but putting in an accurate value in m/s here doesn't really return the expected resulting path. (even x10 feels very short in comparison to reality)

[rancid current]

3D games are really weird in Unreal, they're basically just 3D but they use planes, using BPs is the exact same

[trim matrix]

Ah is making 2d games in UE a good choice in ur opinion?

[rancid current]

Imo Unity is better for 2D games, UE is better for 3D

[hazy igloo]

The trace line hits an visible actor?

There is a good learning video from Matthew: https://youtu.be/yo9VrxFgUJY

[rancid current]

I've watched that video, yes it passes through an actor that is clearly visible

[white lynx]

^ It needs to react to the collision

check the docs on collision

You have trace channels, object channels, and profile channels

[hazy igloo]

And the order is: ignore, overlap, block

Look at https://www.unrealengine.com/id/logout?redirectUrl=https%3A%2F%2Fwww.unrealengine.com%2Fen-US%2Fblog%2Fcollision-filtering

There is a good picture for it

[autumn plover]

How do I get a player character in GameInstance. Need to call a function to the player controller to change camera FOV...

doing it here because its multiplayer

[civic briar]

Cast, get character, as character get camera, set FOV

[autumn plover]

thanks alot

[burnt trench]

I have a general question. Is the 4.27 version stable and not have any major issues? Can I use it for my major project?

I am noticing a pretty significant increase in compilation of blueprints for example

anyone experiencing the same?

like I just made a new variable in a compiled blueprint and it took more than 5 seconds to compile it

I have a pretty solid computer and the blueprint and the project itself are at the bare minimum stages right now. Just started yesterday

I dont see why this is happening

and also, ue4 goes to not responding state during that time

actually, on furthur investigation, its not the compiler but the save of the BP which is slow

I had compile and save thing on

[snow harness]

I've got a branch of float > float, which is returning True, even though printing the value makes it apparent it shouldn't be. Am I dumb? I can't figure out why this branch is going to true, even though you can see on the left I have floats which are not greater than 0.9, so in those cases the branch should be False, but it's always True regardless.

[peak crater]

anyone else waste lots of time overdesigning your event standardization between gamemode, gamestate, pc and character pawn?

lol

[snow harness]

I was just trying to show that the same float is flowing both to Print and Branch, and looking to the left where it's printed, there are values which are less than 0.9, yet the Branch always returns True.

pause the game before you observe values
Since this is a For Each Loop, and there are multiple cycles per frame, how can I see the values of each iteration in one frame?

Ah breakpoint within the loop, that makes sense

[timber pilot]

Any suggestions for turning the player's body without turning the camera? Doing the opposite seems easy, but I need the body to rotate to sync up an animation without turning the player's head involuntarily

[languid haven]

New to blueprints and trying to get a HUD element to pop-up when the player picks up an item and can't seem to figure it out. What do I add to the item parent object to make it show a HUD element for a couple seconds after successfully picking up the item?

this is the item parent blueprint. all the picking up stuff works, but the Set Visibility gives an error. the InventoryTooltip variable is an object reference. Not really sure what's wrong since I'm mostly guessing with the set up.

error says "Accessed None trying to read property InventoryTooltip"

[burnt trench]

apparently it was a perforce issue. The server wasnt responding which was why it was taking so long to save files. Issue is fixed

[pure locust]

Where does it actually know what input to look for here? It's just the basic third person controller but this is the same as all the other things here too, they all just have the name of what's happening but nothing defining the input

[dark crow]

Top left

Edit -> Project Settings... -> Input

[stuck ore]

https://gyazo.com/fa7baf5a46f4e878ab7ccbba22badd03

for some reason this isnt working

when i leave the area

the widget stays visible

this is for a door btw

when i enter the zone where i can open the door, i want text to appear prompting the player to open the door

[worthy tendon]

is your character really FirstPersonCharacter?

it probably isn't

[stuck ore]

im using first person template

🤷‍♂️

would that work with this

[dark crow]

Depends if the selected pawn in the gamemode is that or you auto possess it in the world

[worthy tendon]

there is better way to check if other actor is your player. you don't need cast at all

if OtherActor equals PlayerPawn it goes to True side of branch.

you need this branch for both begin and end overlap. remove those casts as well.

[true valve]

How do you duplicate BP actor in blueprint?

Would make array and getting the actor at index 0 work?

[sand shore]

That wouldn't be a duplicate object, so no.

You need to either Spawn Actor or Construct Object

As for actually copying everything over.... you'll have to make a function to do that; and then call that on your object

you could do it with an Expose on Spawn variable

then you'd use that on the construction script for Actors (but objects you'd still need to call some kind of copy function for)

[true valve]

https://gyazo.com/0746cabacd901c729e683f58c1bb2253

I get that error when I construct

[sand shore]

is that an abstract class?

[true valve]

It's an Blueprint actor, does it have to be c++ class

[sand shore]

no

There's very little to go on

Where are you calling this

[true valve]

In char BP

In sub event graph

[sand shore]

Unfortunately I'm all out of ideas

[languid haven]

How would I go about making a blueprint actor that changes the color of the lighting in a level?

I have a day/night cycle set up in the Level Blueprints, and a variable for when to change the lighting, but I can't find a blueprint node that'll actually change the lighting color.

[unreal token]

how do I make a solid building mesh, enterable, with a portal at the door. if I asked that correctly

[surreal peak]

@sand shore @true valve I think Actors have to be spawned. The construct object node can't be used with them.

[true valve]

So what I'm trying to do: I have two variables with the same actor. I take variable A and assign it to B then DestroyActor A. Since B is being used to check things. I get errors after it deletes variable A. Two variables with the same actor type.

[surreal peak]

Literally same actor instance or just 2 times an actor?

I don't think you'll get around spawning actor B and moving the data over by hand. There is no copy construction for actors afaik

[true valve]

could it be done using c++

[surreal peak]

Maybe

Iirc there is some Template Actor you can pass into the SpawnParams

But not sure if that's the desired use case of it

What you describe with actor A and B sounds like you are using one and the same actor instance

Which would of course break if you destroy it via either of the two variables

These variables only point to an address in your memory

Actors can only be created via SpawnActor

[worthy tendon]

You are probably solving the wrong problem.

https://en.wikipedia.org/wiki/XY_problem

[true valve]

What I'm trying to do? I have some clothes. Head, chest, legs, etc. So when I equip one kind for the first time I put it on, but if I try to put on the same type i spawn the one I'm wearing in front of me and equip the one I just selected then destroy it from the world.

[hoary orchid]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Sequence/GetMovieScene/
How do I get access to this now?
I've been trying to access it but can't seem to find a way to access

[fathom spindle]

hi there, can anyone please help me set up a linetrace so that it ignores the capsule component of a character and instead collides with the skeletal mesh polygons? i'm trying out all the options and getting nowhere, would really appreciate some help 🙂

[honest wolf]

You need to mark the "Use Complex" checkbox

[floral quail]

For a blueprint script component, how would you get a reference to the actor that calls the functionality?

I'm trying to follow this tutorial: https://www.youtube.com/watch?v=Oh7pDL8RFaI that references an Owning Pawn variable

Pls @ me if you know! 😄

[honest wolf]

You need to use the "Get Owner" call for Actor Components. Search for "Get Owner" and pay attention to which one is the correct one.

Should look like this

[floral quail]

Ahh, I just picked the wrong get owner

I see

Thanks man!

[honest wolf]

Any time!

[floral quail]

I wonder how the tutorial has made the function as a parameter?

Possibly just setting the value once?

Is that a best practice?

[honest wolf]

What do you mean?

(can't watch the video atm)

[floral quail]

see this @honest wolf

[honest wolf]

What function and parameter do you mean?

The one of the custom event?

[floral quail]

The last screenshot i mentioned has an Owning Parameter

Instead of the get method

Also it doesn't quite seem to work

[honest wolf]

Ah, they probably just saved the reference as variable

[floral quail]

It complains when I don't directly reference a parameter in target

[honest wolf]

You can only leave the parameter blank if you call the function within the class it was created in

Otherwise you need a reference to the "Tank Motor"

If the "Tank Motor" is the owning actor, which you can get with Get Parent, you have to cast that to the Tank Motor class first and use that

[floral quail]

referencing "tank motor" I'd just assume that it wouldn't apply the movement to the tank, but try to move the "motor"

[honest wolf]

You can have movement handlers in actor components

[floral quail]

Huh it actually just works

[honest wolf]

Simply put, Actor Components are just "containers" for code

They're all attached to the same parent actor

which they can also control

[floral quail]

Yeah, it's just when adding "actor localoffset" with tank motor component as target

[honest wolf]

It's like the breaks in your car. You hitting the pedal doesn't cause the pedal itself to force the car to halt, the pedals just transform your input to the actual breaks

[floral quail]

I'd assume only the tank motor component would be moved in space

I have unity background, might be what's messing with me 😛

[honest wolf]

https://docs.unrealengine.com/4.27/en-US/Basics/UnrealEngineForUnityDevs/

This may be helpful

[floral quail]

Ty! Right now I'm trying to get my hands dirty with a lot of blueprints, think it can really speed up iteration

The hardest thing is wrapping my head around all the high level functionality

[whole dune]

Any idea how i could make these stay connected with the 2 carriages no matter what? like if 1 carriage moves forward the thing stretches so its still connected

[native willow]

https://docs.unrealengine.com/4.27/en-US/AnimatingObjects/SkeletalMeshAnimation/NodeReference/SkeletalControls/SpringController/

[whole dune]

that can do this?

thanks

[native willow]

that can do this

[whole dune]

so i can connect it to 2 meshes instead of only 1 with a socket

awesome

[jade nova]

How can I make it so I have a text ui that constantly updates and goes by a variable

[native willow]

bind it

[jade nova]

Yea but what code do I do

@native willow

[native willow]

it is already handled by unreal

[jade nova]

How

[native willow]

https://letmegooglethat.com/?q=widget+variable+binding+ue4

[jade nova]

Hmm that’s not what I want I think

Because I only want the variable to update the text

Im stuck on that since a long time

[native willow]

just bind the text

[jade nova]

I did

Now I have event graph and the function

[native willow]

so if it is not working, show what you've got

[jade nova]

I’ll try

[native willow]

you need to bind the variable, don't need to use the function

[jade nova]

So I go in event graph?

[native willow]

as shown here

just choose the variable from the list

[jade nova]

That’s in the proprieties of the variable?

But the variable isn’t in the widget blueprint

I can’t find this menu

Where is it

[iron grotto]

Hi, I'm starting unreal and I have a small problem on my actual code, I've created A Wall and on the "On Component Hit (Wall)" I just put my code. When I hit it with the player it's working, but when I try to shoot it, my projectile don't trigger the "On Component Hit", how can I debug myself ?

[jade nova]

Where is list

[native willow]

you click the text and it has the Text property with the bind button next to it

[native willow]

it depends on how you've done the projectiles

[jade nova]

The variable isn’t in the list

I just have « create binding’

I think I got it

Not sure tho

[iron grotto]

My projectile is just a basic sphere

[native willow]

but how are you shooting it

[jade nova]

That is the problem

My character reference doesn’t want to link to the variable

[native willow]

it means the variable is not in the character 🙂

[jade nova]

Oh

Hmm

Where is it then

[iron grotto]

First with a fire Event that is called by PullTrigger event, and the PullTrigger is called in my Character on the right stick (Top down shooter)

[native willow]

yeah, but how the projectile is moving?

[jade nova]

Sorry I feel kinda stupid

[iron grotto]

Oh sorry, with a projectile movement set to 1200

[jade nova]

It work!!

Thx @native willow

[native willow]

what happens with the projectile? does it bounces off?

[iron grotto]

I'll take a Gif to show, it will be better I think

https://gyazo.com/00f656c404535d486ba5424de3cc0f0c

Is it maybe because the projectile actor is destroyed too soon ?

[native willow]

yeah, that was the thing I was about to suggest

[iron grotto]

is the delay at the right place ?

Because even with the delay my projectile still doesn't interact with the "on component hit(wall)"

[jade nova]

@native willow I got another problem

So I made this soccer game

And when the ball hits a goal it gets destroyed and spawns a new one

So then I added a new goal and changed some variables

Because earlier I had only one

But now if I shoot on any of the goals , the other one stops working

Can you help?

@native willow

I get this error message

[maiden meteor]

heyo, can someone help?
i need to display text in a HUD element whenever the player is in radius to an object

[sacred socket]

Try adding collision sphere to your character then use node on Actor Begin Overlap and Cast it to the player which has to be in radius

[sand shore]

Yeah, but I wasn't wanting to guess at every possibility

[sacred socket]

Can anyone help me with this, I want grabbed character to follow my mouse input. I am using Set World rotation with find look at rotation.

Also I want Character to Grab at his hand. Can we change location of any character on skeletol based?

[brazen pike]

you are gonna want to use an event tick (or close to it) to set the world rotation to be the same as your character. What you've described should work. Can you post your blueprints?

[trim matrix]

Does Torque in Nm * Inertia in KG/M squared equal to Angular Acceleration in Rad/s? It is important for me to know

[jade nova]

Damn that is good

[jade nova]

This

[sacred socket]

Yeah

[sacred socket]

Yeah I have used event tick with world rotation but I think the problem is input axis left/right is updating gameplay character rotation and not grabbed characater rotation.

I will post blueprints when I will open my pc

[brazen pike]

This is what I have for something similar. Mine does not use multiplayer though, so if you are doing a similar game to friday the 13th as it seems like in the clip, you won't be able to have it exactly the same

Rotate trap is called when I have a trap in the player's hand. It then spawns a red/green trap at the end of the player's line trace when they can or can't place it down.

If you have a different skeletal mesh to the one on the ground than in the hand, you'll need to do soemthing similar

[rain egret]

i come in enlightenment

the issue i had, which was:
if character steps on attached actor to moving pawn, moving pawn will jitter

how i solved it:
in the character movement component i simply set the tick group from pre physics to during physics

[late cave]

Can you broadcast a message with, say a struct in it, and have blueprints receive it without knowing what class sent it? (Event dispatchers seem to require casting and can't contain any variables, unless I've misunderstood things...)

[earnest tangle]

@late cave I have a subsystem in my project which has a number of game events which functions in this way

[late cave]

That sounds interesting... can you elaborate? How are you sending data with your messages/events?

[earnest tangle]

it's just a regular event dispatcher (or rather, since it's C++, it's a dynamic multicast delegate)

[late cave]

Ahhh... that's what I thought... C++ always has the answers!

[sand shore]

to bind to an event, you have to know which class stores the delegate.

Since you can broadcast events from outside the class, you don't know that the event came from the class

[earnest tangle]

well the reason is that it's a subsystem, and you can't do subsystems in BP's

[sand shore]

So you could do this entirely in BP aside from the subsystem

[earnest tangle]

you could use the same pattern in BP's just as well, but you'd just need to store your dispatchers on something like an actor

[sand shore]

Game instance or Game State would work

[earnest tangle]

if you're concerned about casting, don't worry. If you just add listeners once in a while, the cost from casting is negligible

[late cave]

Haha... I just made this... so this isn't entirely crazy? 🙂

[earnest tangle]

Seems entirely reasonable

[late cave]

So any class that wants to be affected by an item can just look for that in the player controller, for example, and the same with any item... no casting necessary...

[sand shore]

But also you could have a level of indirection: You call a function on Game State when you spawn your McGuffin. McGuffins have a set of public events, and GameState has OnMcGuffinSpawned.

Fizzler binds to OnMcGuffinSpawned and then manually binds McGuffin.SomethingHappened to Fizzler.StageProgressed.

Neither GameState or McGuffin realize this is a possibility, but now McGuffin is linked to Fizzler

Some would say Fizzling your McGuffins is kinda weird. But you do you

[earnest tangle]

lol

but yeah that pattern is good too

[sour hill]

I'm not exactly sure if this is the right place to ask help but here's my problem.

I have a paper plane model and since animating it manually would be a tedious process I decided to animate it by creating a blueprint class, adding the model there and using the nodes to add velocity to the plane at the start and at each tick.

This way I quite quickly achieved the result I was looking for but I'd like to use the sequencer and render a video of the plane flying, but when I play the sequence, the blueprint isn't triggered. Is there maybe a way to bake it to keyframes or trigger the blueprint from the sequencer. Thanks.

(please ping)

[late cave]

@earnest tangle @sand shore thank you both for the information! 👍

[dawn gazelle]

This seems like too much of a ploy to move the plot forward.

[sand shore]

Deus ex Control Pattern

[open crypt]

is there any reason to make multiple savegame objects when you don't have an excessive amount of variables? or just make one master ?

[sand shore]

There can be, but you'd typically see saves implemented into folders if there are multiple .sav per save

[open crypt]

I'm trying to decide between having the slots all saved onto one and use that to query the data

or I might save a list of users on the saveobject and just use a single slot

[sand shore]

And all that would be abstracted away so it could look a lot like GetSave("Paragon Run", SaveType.DashLayout)

And you could have tiny .sav or big .sav

[open crypt]

I guess the Slot is what I'm not fully comfortable with, I've always used the same one

[sand shore]

A good reason for that is if there are portions of the state you want players to easily copy around without replacing the entire state.

but which are not global

But it is a lot of work to get a good multi slot system going

[open crypt]

my use case is less game and more simulation - saving recoreds and stuff

[sand shore]

and half measures will leave you worse off

Nothing I said is entertainment-only

[open crypt]

so Just use a single slot and query using strings against saved array of user names?

[sand shore]

it's generally applicable even if I used game terms

Yeah, I'd stick to what you're personally comfy with

You're seeking problems for a solution you think might be worth it. I'd say unless you know you'll need it, it will be more beneficial to just extend the familiar pattern

[open crypt]

Just wanted to check - those were my instincts - thank you for explaining that

[sand shore]

Because my example is just the tip of the iceberg

to get to that level of ease of use is "miles" of work

[open crypt]

I think of it as the edge of the rabbit hole

[sand shore]

It's appealing to me, but I'm a UE programmer by trade

[open crypt]

got a call at station but I'll be back - might break some stuff when I get back 🙂

[velvet dagger]

I'm trying to make loading screen tips but I don't know how to make the text change 😓

Help would be very appreciated!

[sacred socket]

Use Asynchronous Loading Screen Plugin its best for level to load and it does everything automatically of level loading and assets

[velvet dagger]

I was thinking about it, just wanted to make it from scratch tho :>

[sacred socket]

I think for that you have to use c++ because it has async process of loading levels and assets

Also you can change text in Widget Bp by using set text node

[velvet dagger]

The set text node never shows up for me : (

Am I doing something wrong?

[sacred socket]

W8 let me check

[velvet dagger]

Alrighty!

[whole dune]

Okay, i dont really know how to use that so i‘m just gonna keep on trying setting bone locations

[sacred socket]

@velvet dagger

[velvet dagger]

OHHHHHHHHHH

THAT

[sacred socket]

@velvet dagger Make Sure You Set it as variable

[velvet dagger]

Ok ok so, I read something that told me to make strings and put it in a select thingy with a random int node selecting them, I then put a set text thing as the select nodes exec and when I use the set text on the text box I want and play the widget it's blank

[sacred socket]

I didnt get it what are you trying to achieve

Are you trying to make tips at game during loading?

[velvet dagger]

Loading screen text that changes after a set amount of time

[sacred socket]

and you want them to be random

[velvet dagger]

Yesss

Yesssssss

[sacred socket]

ok w8

[velvet dagger]

I'm sorry for being confusing

[sacred socket]

np my english is bad 🙂

[velvet dagger]

It's cool!

[sacred socket]

@velvet dagger Here It is Make String Variable and convert it into array and add your random stuff.

[velvet dagger]

What's the purple get node called?

Nev I got iT

[sacred socket]

Gwt

Get (copy)

[velvet dagger]

Finding the set text thing is the most trouble I'm having

[sacred socket]

Click On your text widget and drag node from it and then search?

[velvet dagger]

This?

Also ignore the add items thing I was just messing with other stuff

[sacred socket]

No the text widget which we add below canvas panel.

@velvet dagger here and dont forget to make the text you added here as variable

[open crypt]

@sand shore I have a question about references to a save game object - if they are created on different blueprints, like this, should I treat them like two separate instances? how would they work if you tried saving to the same slot but with a different reference (but the same save_game object)

is it just the same?

[craggy turret]

Is it acceptable to use Even Tick when I want to regen mana or health?

[spark steppe]

it's a reference to the object

so it points to the save game object that was created in create save game object

[open crypt]

You can enable it if you want to have an effect, like keeping adding health until full, then you disable the tick event on that respective BP

[open crypt]

So what happens if you create the save game object on another BP?

[open crypt]

You could also use a timeline for the same effect, and for that you would have more control

[craggy turret]

Yeah im doing that, but I have stamina regen and decrease that doesnt work like that at all

[spark steppe]

what do you mean by "what happens"?

[craggy turret]

not the timeline, just disabling it after i get max X

[open crypt]

if you to a slot - of the same savegame object type (but a difference reference)

[spark steppe]

it would overwrite the existing data

[open crypt]

okay that's fine - I just wanted to check - so I can still make an 'independent" reference (even make the savegame object if it doesn't exist) - I haven't done any debugging yet but I'm assuming the references would actually match in terms of their object

[dense shard]

Hi.
Wondering about the execution wires:
In some examples, you have many execution wire sources going into one target, which is kind of unusual. Normally you’d have one to many, not many to many.

Is there an advantage to supporting this instead of just forcing the user to link-up one true path between nodes?
I guess it does clarify dependencies and maybe lets the compiler know about opportunities for parallel execution, but in exchange it can get pretty messy.
Thoughts?

[spark steppe]

https://tenor.com/view/charlie-day-gif-18564553

i think it's fine

[craggy turret]

As you can see my percentage is at 50 but the bar is still full. why 😦

please help if you know

[supple dome]

its 0-1 range

[craggy turret]

but 50% is 50%

[supple dome]

?

[craggy turret]

50% of 1 is 0.5

[supple dome]

then type 0.5

[craggy turret]

dont tell me thats how it works

[spark steppe]

that's how it works

[craggy turret]

omg

thanks

[dense shard]

Either approach is fine though, I guess? I was just wondering if one actually yielded some advantage.

[craggy turret]

it doesnt show as 0.5 in game doe....

[supple dome]

if you set your value from code you have to remap to 0-1 range

eg.

[open crypt]

Are familiar with what a Lerp is?

[craggy turret]

nope

[open crypt]

Teach him that first Takain

[craggy turret]

my values definelty are from 0 to 1 doe

[spark steppe]

no, map range is the way to go here

[open crypt]

it is, but lerp is the simplest example

[supple dome]

they are not, else it would be working lol

[craggy turret]

let me check everything then

[open crypt]

You know about running breaks and stepping through your blueprints right?

[supple dome]

the value is getting overriden by this

[craggy turret]

nope, newbie here

[supple dome]

make sure it returns 0-1

[open crypt]

ah, take a course buddy, save yourself many headaches - that or at least go through the youtube series that are out there

[craggy turret]

im going trough them

for now im just experminenting

make a little game

get used to all this

[craggy turret]

My max mana is 1

[open crypt]

ah, well in answer to your question, watch this and you will increase in power https://youtu.be/YyzsbY4pLuQ

[craggy turret]

imma pin it thank you

[open crypt]

bro I'd honestly watch it immediately - this is the equivalent of learning how to fly when you've been taking the bus

[craggy turret]

this issue is really bugging me now

[timber knoll]

well for something like a percentage binding you shouldnt need it honestly

[craggy turret]

and i dont understand it

[timber knoll]

stepping through stuff is more when you have a lot going on at once

[craggy turret]

ill watch it after i figure out why my percentages dont change

[open crypt]

Your problem is two areas - 1 - simple math 2 - UMG

first make sure your numbers are changing correctly, worry about displaying them after that

[craggy turret]

they are

[open crypt]

UMG is it's own little beast and can be very quirky, so you want to make sure that your numbers are absolutely solid

[craggy turret]

the adding and substracting of mana works

[timber knoll]

getting the percentage should be as simple as calling it from your player and having it return current/max

if not, you are making it complicated for yourself 😄

[craggy turret]

the problem is that it doesn't change with the HUD blueprint

[dense shard]

Actually I found an example with events in which full linearity is not possible

[craggy turret]

is this the problem?

[timber knoll]

isnt your mana out of 100?

[craggy turret]

no

1

everything is between 0 and 1

all values

and it doesnt show me in the game

the value i set in the HUD blueprint

[floral quail]

sick anims

[craggy turret]

@floral quail they came with the character 😄

[pliant violet]

Hey crew, I am spawning a projectile at the end of a gun here (top down shooter), but the direction is not correct, which makes me feel I have the rotation wrong.

I am unsure of what to do with the rotation, anyone have advice?

[timber knoll]

set it to the gun rotation

[heavy lion]

Evening all. I am trying to rotate a bone left and right using the mouse. I have done it before but I cant for the life of me remember how

[timber knoll]

im not 100% sure on projectile movement if its in local space or world space tho

if its world space, you can get the forward vector and use that to set your bullets velocity instead

which would give the same result

[pliant violet]

Ill give that a shot, thanks @timber knoll . The projectile seems to just float downwards when I use the world location

**rotation

[trim matrix]

I have a tree that I'm cutting down. It has a vector for the direction where it should fall, but after an hour last night and a few attempts this morning I can't figure out how to rotate it so that it's laying down towards that vector I have

I can do it if I don't care about the "roll" of the tree but I'd rather have the rotation be as simple as possible.

[lusty wave]

@trim matrix Not sure if this is the part you're hung up on: To achieve this, you want to rotate about the axis perpendicular to both the tree itself (world z probably) and the direction you want it to fall (drawn as [x, y, 0] in your diagram). So you would find the axis as rotation_axis = world_z.cross(fall_direction).normalized() (pseudo-code). You could then pass that vector and the angle to RotatorFromAxisAndAngle (a blueprint node), assuming the pivot of of the tree object is defined at its base. If you were doing a physics based method, applying an impulse in the [x,y,0] direction at the top of the top of the tree (AddImpulseAtLocation could do this) might work? Unfortunately I have to run and can't be much more help, just a couple of ideas though.

[civic briar]

Is it possible to use Add Movement Input with physics enabled ? Cant figure out how to make it work.

[earnest tangle]

I don't think the movement components support physics based movement

[civic briar]

Apparently not, and its driving me mad

[earnest tangle]

It might be possible to write your custom movement component which handles it, but the ones out of the box, no

well, you could just apply a force into the desired direction to emulate the behavior

or something

[civic briar]

Yeah i did but trying to get away from that.

I am trying to use the character movement because its much better in terms of replicating the movement vs physics

But i have to use physics because the object is constantly hovering

[earnest tangle]

Hovering? What's that got to do with physics?

[civic briar]

It dynamically changes the hover height based on the difference between start and end point of line trace and applies upwards force

[earnest tangle]

ah

you could probably just set the Z position of the actor instead of using physics

and if you want it to look like it's sort of floating, you could probably fuzz it a bit with some randomness

[civic briar]

Yeah i thought about doing that, but its hard to get it feeling right.

Like if you were to jump off a ledge, the gravity is important, and when it gets close to the ground, the hover comp i made will act as a spring to slowly move the player back to the correct height

[earnest tangle]

yeah it's a bit tricky I guess

the other option would be to move the actor manually while keeping physics on, eg via set actor location

you'd have to calculate the right amounts etc. manually but it shouldn't be too bad

[civic briar]

ive done this. it works but isnt replicated with the character movement, so id need to do all the prediction, etc manually which i was trying to avoid for now

[earnest tangle]

ah

physics aren't deterministic btw either if you need replication

so that could go out of sync between clients

[open crypt]

I've been able to import a texture via Runtime and have it display on a widget but I can't get it to save - the save event returns True, and I have a Texture2D object on my save object that I am setting to the newly imported texture before saving to slot (and again, it comes back as true) but when I try to load it, that variable is always null

If I need to make it dynamic, I'm not sure how

[civic briar]

Yeah physics are tricky but its the only proper way to achieve the results i need :/

as far as i know

[earnest tangle]

you can calculate a springy effect without them too but yeah it's a bit of a pain lol

@open crypt fairly sure if you import it at runtime it won't have anything you can really save. You would need to save for example the filename of the texture, then on load get the appropriate runtime loaded texture based on it

[civic briar]

Yeah especially with trying to re-create gravity

[open crypt]

I want them to import an image without having to manually copy it to project folder - are you saying that's what I have to do though? Basically have a file browser and they pick out a PNG - then once they do that, I need to get that file path and somehow copy the file via blueprint to the project folder and then just save that image path ?

[earnest tangle]

You could probably just save the full path to the file

this way there's no need to copy anything

[open crypt]

That's what I don't get, why does it return positive? in fact, when I was testing, I made a load event and it loaded the image fine, as long as i didn't shut down the editor, it was transient

[open crypt]

they might change i

[earnest tangle]

what function are you using that's returning true?

[open crypt]

sorry, this one

sorry it got jumbled

[earnest tangle]

Well that just means the save succeeded

[open crypt]

if there was some way to convert the texture to a dynamic one, I think I could save it

yes but when I load it, it is empty

[earnest tangle]

Yeah, because it's a transient texture

[open crypt]

I'd like to be able to convert it to something savable

[earnest tangle]

you could probably save a reference to a non transient texture asset such as the ones bundled into your game

[open crypt]

that or I guess I need to get a true file importer

[earnest tangle]

right, I don't know if that's possible in this way. My game has a feature where it loads graphics at runtime and saves it, but it does this by keeping track of the filename

[open crypt]

that's pretty wild if I'm reading it correctly

[earnest tangle]

Yeah if you want you could store it as bytes in the save

You'd just have to recreate it when loaded from the bytes

[open crypt]

how to recreate from bytes? hmmm

[civic briar]

Okay so why tf can i not add force using the Character Movement Component

[zealous moth]

@civic briar try launch

[open crypt]

Still doesn't work - I"m going to check something else but I could have sworn this was going to work

[earnest tangle]

Make sure your loading logic for it is correct

It's a bit tricky with textures because they have to have everything just right for it to work :P

[open crypt]

this can't be helpful

[earnest tangle]

🤔

try printing the length instead, sometimes these hover things don't work correctly

[open crypt]

it's zero - i wonder if there is a max size? It absolutely imports and displays fine but it's a 5 mb image - maybe the bytes has a limitation on size?

[earnest tangle]

There shouldn't