blueprint

[fleet cedar]

Is that the new enhanced input thing?

[lyric quiver]

yh

[fleet cedar]

Okay, I need to learn that then... haven't tried it

[drowsy anvil]

it loops with event tick

[lyric quiver]

It's really useful once you learn it

[fleet cedar]

So for rotating the objects I could have a boolean to check if the object is held, an input event like RotateObject, and switch the input mappings when the object is picked up?

Is that the general idea?

[lyric quiver]

You probably don't need to use input mappings if you only need to add one input but I'm only a beginner so I don't really know the best practices

[uncut seal]

which nodes could i use to make a thingy that checks for a specific actor in an array and returns a boolean of true or false based on if the actor is in the array

[drowsy anvil]

with event tick, the timer doesnt delay the shots just rapid fires, but with beginplay just shoots once

[lyric quiver]

can you show the bp?

[lyric quiver]

you could do a for each loop and check if the actor has a specific tag

[sand spoke]

Is it a thing in unreal that if you have 2 widgets on the screen, the buttons from the widget on the bottom cannot be clicked?

[lyric quiver]

you need to put the spawnactor logic in the firing event cause that is what is getting repeated

[uncut seal]

ahh i can use contains node

[lyric quiver]

nice

[sand spoke]

Can you reply me for this?

[drowsy anvil]

makes sense, how do I open the event to add the code in?

[lyric quiver]

drag the arrow white node from the firing event to the spawn actor and remove the link from set timer to spawn actor

then it should work

[drowsy anvil]

like this? it doesn't fire anything

[lyric quiver]

put the begin play into the set timer

and remove the white link from spawnactor to timer

[drowsy anvil]

thank you for the hand holding, it works nicely now

[lyric quiver]

np

[barren tangle]

Hello, When i change dynamicly the mesh of a skeletal mesh. Which material is apply by default on the skeletal mesh? do you know?

i have define into the model this

but when i play the last one is blinking

is it possible i have some conflict?

i build my mesh like that

[stiff swift]

I want to say should be able to click any number of separate widgets at the same time as long as none of the functions/events get rid of your mouse cursor

[trim matrix]

How to change a ui position at run time? it seems impossible

help would be really apreciated

[stiff swift]

I haven't tried setting a widgets location at runtime but maybe if there's a way to get the clamp and change its location not sure off the top

Alternatively copy the widget bp, change the location of it then have it swap between the widgets in viewport as conditions are met. But depends on your need case just a temp solution

[trim matrix]

it should work..

but doesnt

[stiff swift]

You want the widget to appear where your mouse is?

[trim matrix]

yea

[stiff swift]

I feel your super close one sec you'll want to get your cursors x and Y then attach it to set position but I'm not sure the node yet

[crystal flax]

hey there i am facing a strange problem my joystic is not comming on screen i enable sho touch input but still i am using activate touch but no touch is comming

[trim matrix]

the x and y are the mouse location

[stiff swift]

I'm not sure the use case off the top but this also works kinda it changes icon based in button or if cursor is over select items

https://youtu.be/K3NKr364u48

[trim matrix]

sadly, that's not really it

[stiff swift]

Gotcha gotcha

[trim matrix]

solved

[stiff swift]

What was it?

[trim matrix]

I will just create a widget and before adding it to the viewport, you set position in viewport to the mouse position

[stiff swift]

Ohhh that makes sense. Create, then set location very good

[queen heron]

I'm tryna add a group of widgets into the grid box inside my editor utility widget so I can set which tile should activate to what direction

but when I click on the button, nothing happens, yet it is firing all the way to the end

what am I missing?

this is how my tile widget looks like

[fleet cedar]

Hello, I'm trying to understand how to cleanly manage my player states in Unreal and set behaviours for each one.

I understand using Enums might be good for this. Anyone have any good resources or examples of how to set this up?

I'm confused how I manage this and block player movement in certain states and things.

[dull monolith]

hi unreal dev any good tips on
for translate between earth ground to space orbit earth any good blueprint tutorials for this ?

[glossy bolt]

hello guy is there any node that can load player item before spawn

[lofty rapids]

how can i cut a whole in a mesh at runtime ?

I want to use an cube in an actor to cut out spaces in a mesh

[trim matrix]

hi, can I cut a ui at run time?

[lean socket]

Howdy folks, got an annoying little bug here. I have a list view widget that, obviously, displays a list of items. I'm following this example: https://forums.unrealengine.com/t/quick-start-guide-to-list-view-widget/738161. The first screen shot shows my code, and you can see in the second screen shot that the code is correctly obtaining data for the list and dis. I compile everything, save everything and then close my UE5 project completely. Upon reopening and playing my project the data no longer shows in the list widget (Screenshot 3). I can fix this easily by replacing the 'CONSTRUCT' node, as seen in screenshot 4. After replacing the 'CONSTRUCT' node, the widget works as intended again, as seen in screenshot 2, even though it is exactly the same node as the one it is replacing, and i can even just copy paste the same node and it works. Why does closing my project somehow stop this working? This seems like a very commonly used functionality, surely it cant be this buggy? Anyone know how to continue development on a project without constantly refreshing construct nodes eevery time you open a project? its infuriating! any help greatly appreciated

[ruby cobalt]

i'm trying to move an actor slightly randomly.. like have it hover on place

ideally without AI.

any tut? or ideas?

[vale pine]

Is there something like an Actor GUID for a shipping build?
I was using it as a key to uniquely identify actors placed in levels, but unfortunately, they're all zero in a build.

[fervent zenith]

Hey im trying to create a spectator system i managed to set it up but the problem is that the camera is not the same as the first person character camera that the user is spectating im using set view target with blend

[marble yew]

i cannot edit character blueprint when project is created as c++ ?

[drifting drift]

Is there any way get an array of bones with physics bodies and or constraints?

[winter tiger]

Has anyone expereinced where you can no longer place a breakpoint in a blueprint, either by right clicking on the node, or by pressing F9? I must of clicked something somehwere to disable it, but I have no idea where 😅 It appears to only occur in a Macro

[trim matrix]

Bit of odd one this but if I wanted to use these assets in my game, I'm guessing I would need to migrate the assets I want from that project to my project ?

or is there anything way to do it ?

[lofty rapids]

Sometimes i'm getting infinite loop detected, is there anyway do this more efficiently ?

i'm trying to generate some random numbers but i don't want ones that are too close to others

[dark drum]

I would generate a random starting number (0-20) add it to an array. Then generate another random number within a range (10 - 30) that gets added to the previous number. Repeat again using the last number. This will save you having to loop through all your previous numbers.

[dark drum]

You can create a var of type GUID. You can just create a var on the actors that need one.

[lofty rapids]

so your saying just load it in a pattern ? the first would would be a lower number, and the rest are higher ?

hmm

[dark drum]

Yea, you could always shuffle the final array to mix them up afterwards.

[lofty rapids]

well i'm generating a string

and generating random numbers

for that string

idk how to shuffle the array would work

[dark drum]

There's a shuffle node. Plug in the array and boom lol. Just do it once you've added all the random numbers to the array.

[vale pine]

Yeah, I've ended up with an actor component that handles GUID generation and it gets updated with the construction script (but only generates if it's zero)
Maybe next time I won't ignore that big gear that means "EDITOR ONLY."

[lofty rapids]

I'm only using the array to see if i generate one closer to the other, i'm not actually using it for anything else

[dark drum]

Yea thats what I do. Just be careful when you're duplicating actors in the level (editor) though as they'll have the same GUID as the original.

[dark drum]

Can you show how you use the numbers to generate the string? I might be able to get a possible solution.

[echo wren]

I have a widget inside of a enemy blueprint to show some data above him. Within that widget, how do i get the owning pawn so i can call function from it to get data to update the widget?

[lofty rapids]

i'm really not using the array, i'm using the random number generated

it's how i'm building the level dynamically

but i guess i could generate them in a specific section per index

i was hoping to find some sort of way to keep them seperate but random without this infinite loop problem

[dark drum]

@lofty rapids Something like this would do the job. You should be able to slot the stuff you're doing with the strings after it. So you'd generate all the numbers first and then use those numbers for the string part.

It does sometimes go over the max but you can always clamp it or modify the max value it can add. (I've probally made a mistake in it)

[echo wren]

I have a enemy class. I added a widget to that blueprint so i could display a UserWidget blueprint over the enemy head. How do i get a reference to that enemy from inside the widget?

[dark drum]

I'm not entirely sure of the hierachy of widgets when inside a widget component but this might work. Assuming it's being called from the actual widget type thats selected for the widget component (not any children within the widget) I would guess the outer would be the widget component which you can then get the owner of which would be the character it's placed on. You can then cast if needed.

[fleet cedar]

Anyone have any thoughts on using Click Events vs Line traces?

[dark drum]

In what regard?

[fleet cedar]

Well for interacting with objects I always see people using line traces to detect objects being interacted with by player but just discovered how much easier click event on collision box is to set up

Don't seem to need interfaces and things

[dark drum]

Ahh, ok. Well normally you want to know what the player is looking at before they actually click on it for showing a pop message or apply an outline effect. It's much easier to handle this using linetraces and what you interact with needs to reflect what you're looking at so using two different systems would cause headaches. Using a linetrace means you can use the same data and have everything run through the same system.

Adding to this, sometimes you might not want pin point accuracy so using a sphere trace can allow you to get the object without looking directly at it as well as handling multiple actors nearby.

Another thing to be aware of is other systems might need to know what you've interacted with which would mean what you've interacted with (using the click events) would need to communicate back with the player which isn't ideal as you want to keep communication one way as much as possible.

If all you need is a simple click event, it's great but more often than not you need an interaction system which can't be done with a click event.

[echo wren]

ok that did compile, but now i must be doing something wrong. the progress bar is not updating. I did click "create binding" on the progress bar, and added the enemy health to feed into that return value.

[dark drum]

Did you get an access none errors?

[echo wren]

when does that binding function it created get called? does not seem to be firing. so i have to manually call it?

[echo wren]

no compile errors.

[fleet cedar]

Great answer, thanks Pattym

[dark drum]

I mean after you've tested it.

[dark drum]

No probs.

[echo wren]

i test it and the progress bar is just 0 always

[dark drum]

Show how you setup the binding.

[fleet cedar]

Another question, I'm very confused on how to manage my player states cleanly and efficiently with blueprint, is using an Enumerator the right start?

[dark drum]

Can you elaborate on what you mean by player states?

[echo wren]

i dont even know what i mean. im sorry. gonna scrap this and just follow a different tutorial.

[dark drum]

Ok no probs, good luck. 🙂

[fleet cedar]

My player has different states like... digging, walking, conversing, inspecting items, and these have different implications on input, movement speeds, what effect different button presses have (e.g. the back button) and I'm unsure how to manage all that

I know how to set that up independently but when it comes to connecting them and having them work together I get lost

[dark drum]

Well from a player input perspective I would use different Input Context Mappings. You can have different control sets for the different states there in with there own input actions. It would just be a case off adding and removing when needed.

An enum can be a good way to handle this and when set could modify the walk speed and the main ICM. The advantage of using an enum as well is you could get it in the animBP to control what the main state tree is being used for things like Crouching, Walking, Swimming, Sitting etc...

[fleet cedar]

Thank you.

I am using let click to set the destination for my character (Top Down template), would it make sense to have a second binding that is using the left click to do a line trace but with the same key or should I just use 1 input for both.

[dark drum]

It depends how you want to do it. If you click on something that's interactable, you might want the character would move to it anyway (and then perform the interaction when reached) and if you don't click on an interactable it just moves to where you click. In the case, you would probally only be using one input action anyway.

[fleet cedar]

Thanks again!

[trim matrix]

simple and quick question

is there a way to influence the cursor speed? using blueprints

[dark drum]

The system cursor, i don't think so.

[trim matrix]

sad.

[dark drum]

What are you trying to achieve?

[trim matrix]

basically, I have a character which is static (he's not moving and the camera too), only the mouse can move

the player should be able to change their mouse sensitivity in game or it's gonna be really boring to change it mannually

[dark drum]

You could hide the system cursor and have a cursor widget move to the actual cursors location. You'd be able to control the speed it moves to it. Depending on your end goal, this might not be applicable though as you would need to check what's under the widget instead of the actual cursor when clicking.

[trim matrix]

I guess, I will need to learn c++ to implement that lol

[velvet pendant]

Hey Brothers,

I managed to get the multiple enemys heatlh and damage works, now i have a little problem, if i spawn 2 of my child class [ AI_HUNTER ]

The Widget HealthBar it's gonna measure the health for both of them.

if the other Enemy [same class] spawns when the first one's at 5% HP, the other will have the same amount of HP [Only visual [widget]]. Any ideea?

[hollow cove]

is there a way to open very old blueprint files and just see what nodes were in a certain place

i guess i could download the whole repository at that date so it opens but thats going to take forever

[velvet pendant]

as a reference.

[flint blade]

Hi all - I am trying to create an Editor Utility Widget which adds the selected blueprint of a specific class to a sequencer. I am stuck on adding the selected actors of class to the sequencer. The drop down would suggest " add actor to sequencer -> add selected actors", but I cannot find the equivalent blueprint triggers. Any help would be much appreciated -Thanks.

[flint blade]

I think I worked it out.

[lofty rapids]

why are you using get selected actors, your not using the return value ?

[flint blade]

You're right - I should use Get Selected Assets of class - Yeah?

[lofty rapids]

or you can just use get selected actors and loop through those, are you only try to use the selected actors?

idk if that function works but it sounds like what your looking for your not using it correctly, why get all actors of class after, which one do you want to use ?

[flint blade]

You are probably correct that I am using this incorrectly - I am looking to only add specific actors of class from my selection.

[trim matrix]

no output = useless bro

[cold lion]

Hi I keep getting this error but I can't change any character movement settings on the child blueprint to add new references or at least I can't figure out how to? any ideas?

Blueprint Runtime Error: "Accessed None trying to read property CharacterMovement". Node: Branch Graph: Handle Enemy State And Calculate Degrees Function: Execute Ubergraph BP Base Enemy Blueprint: BP_BaseEnemy

[crimson saddle]

what happens if an actor is set to no owner?

[lofty rapids]

you can maybe get selected actors loop through them, try to cast to your bp ? i'm still learning might be a better way

[flint blade]

Thanks - I had just done this before I read your comment

[echo wren]

If i have a enemy blueprint (based off pawn). and i add a widget to that blueprint, then assign a userwidget i made to that widget so it can be placed above the enemy. How do i get a reference to that enemy blueprint from the userwidget blueprint now?

[haughty latch]

Trying to fade between levels can swtich but failing with the fading, Anyone help on this Im close. just not getting there. Cheers

[fleet cedar]

Is this the correct way to change input mappings?

[flat coral]

I'm trying to make an actor component that subclasses scene component, because I need the transform. But I've found it's really hard to use with no visual element. Is there a way to attach an editor-only visual element to a scene component, like that white sphere that the default scene components have, or an arrow like the arrow component?

It's frustrating that I can't just subclass ArrowComponent directly

[drifting drift]

GetBoneMass Seems to return 1 or 0 (it recognizes the mass scale but that's it.)

Has anyone ever got this node to work properly?

[vital cave]

Not exactly looking for help more so a starting point. I’m looking to make a state where when the player presses a spell cast input the camera is disabled, an actor is spawned, and that actor can then be moved around with the right stick, after say 5 seconds it passes its location to another actor who spawns there just after the “aiming actor” is destroyed. If anyone has played dragons dogma, pretty much the spell aim in that game. Just not sure where to even start for being able to control another actor manually with the right stick, I should be able to handle the rest of it, Any ideas would be great thank you

[sand spoke]

Can I use a skeleton mesh in a static mesh?

[lunar sleet]

What do you mean in one?

[sand spoke]

It’s ok I just need to convert

[kind estuary]

i set up all my control functions in the pawn not in the player controller.
the player controller doesnt cannot inherit from AI controller.
so i think this is better so that i dont have to repeat the same function in player controller and the ai controller

am i correct?

[sand spoke]

How can I apply different colours to different parts of a skeletal mesh

[pliant sorrel]

What is the simplest method for delivering a UMG using the Lyra framework to the player? - in BP

[digital valve]

Anybody see whats wrong with the function?

[trim matrix]

what are you looping?

nothing..

[willow tendon]

speaking of.... how would you set a certain enum in an enumerator to hidden?

[digital valve]

thats how a tutorial said to pull out the variable is start. What would be a better way to find the starting piece compared to the other board pieces at the start of every level?

[trim matrix]

well the if will probably alway be false because there's no value to it, it's just looping nothing and trying to get an information from it, the tutorial is probably wrong

[willow tendon]

nm, apparently theres a UMETA flag in C++ for that and this just skips whatever ones you hid.

[digital valve]

Would I not be able to set the board piece to true on the piece itself?

[willow tendon]

annoying its not in the editor tho

[trim matrix]

you are looping through a list of actors and not doing anything, then trying to get info to it at the end of the loop, everything seems wrong

[main lake]

How can I create an ability system like this in Unreal please ? https://youtu.be/6RN57ibqfHY
By that :

• Having a palce to set up a keybind
• Having it linked to a UI, with a progress bar, countdown
• Play an animation when the key is pressed and the ability isn't in cooldown
• etc...

I want to create a system like that to make it modular allowing me to create as many abilities as I want, and applying them or removing them from players when I want. And having different animations or doing different stuff according to my code 🙂

[remote meteor]

Only in cpp with UMETA=(Hidden)

[flint blade]

Hi All - I am getting a datatable reference from another actor via a Widget Editor Utility. I can read the datatable fine If I reference it manually from Get Datatable Row, however if I use the cast reference from another Actor (which sets the datatable as a global variable actor), the outrow pin greys out, and I can't get the data from it. What am I missing?

[remote meteor]

you mean this "grey"? This is because the blueprint couldnt determine which struct you are using based of a variable based DataTable, because the DataTable pointer is nullable and there wouldnt be any struct in this case.

However, from the "grey" node, you can actually break into the struct you would know the data table will have.

[flint blade]

Yes - correct, that grey. How would I break the struct?

[remote meteor]

drag it off, type break <structname>

[flint blade]

... Haha thanks.

Still very much learning the basiscs. Appreciate the help

[remote meteor]

"grey" node means a wildcard, basically means the type hasnt been determined yet, and it could be anything.

[uncut seal]

anyone know why this is running an infinite loop? its probably really obvious 😭 but i cant seem to figure it out

[celest lotus]

how can i change the forward direction of character after switching camera? For eg when i press the W key it should move in -Y direction

how can i change the forward direction of character after switching camera? For eg when i press the W key it should move in -Y direction

[broken wadi]

You can swap the logic that happens with the input action move forwards axis and the input action move right axis depending on if the camera is third person or swapped to the other position using a bool.

[celest lotus]

im switching cameras on overlap of box collider

[main lake]

Mabye enabling "Use Controller Rotation Yaw" when you switch your camera to the top camera will do the trick

[celest lotus]

its being like this

[main lake]

you enabled that option ?

[celest lotus]

u mean this right?

[celest lotus]

u mean changing the movement inputs?

[solemn jetty]

Try adding some print statements and see which is looped, I feel it has something to do with Is In Range

[broken wadi]

The input action bindings for MoveForwards and MoveRight have an axis value float either -1,0, or 1. This is when you hold W, S, A, or D for standard movement. What you can do is have a boolean setup for when the camera switches then have the input action events check first for that boolean before rerouting what happens with the incoming axis value for both MoveForwards and MoveRight. Maybe a value of 1 for W goes into move right instead of MoveForwards that sort of thing. It depends on how you’ve rotated your camera.

[celest lotus]

i can that try that

[solemn jetty]

Check this, if it helps

[remote meteor]

You want the movement axis to follow the camera orientation? So in the top down view, W would go "up"?

[broken wadi]

Should also rotate the character so it’s facing the same way as the camera.

[celest lotus]

yes!

[solemn jetty]

In that case

1. Get the Camera Forward Vector:

Use the "Get Player Camera Manager" node to access the camera component.
From the camera manager, extract the "Get Forward Vector" node. This gives you the direction the camera is facing.
2. Invert Y-axis for Top-Down:

Since "up" in the top-down view is typically considered -Y, you need to flip the Y-axis component of the forward vector.
Simply multiply the Y-axis of the vector by -1.
3. Move Character based on Adjusted Forward:

Multiply the adjusted forward vector by your desired movement speed.
Use the "Add Actor Local Offset" node to move the character in the direction based on the calculated offset.
This method essentially takes the camera's forward direction, flips the Y-axis to align with up in the top-down view, and then uses it to move the character accordingly. So, pressing W will always make the character move in the direction the camera is facing, regardless of any camera rotations.

Additional Tips:

You can use a "Compare Floats" node to check the camera rotation angle and adjust the movement based on specific thresholds. This allows for fine-tuning how the character behaves at different camera angles.
Consider blending between world-based and camera-based movement for smoother transitions when switching between camera views.

[celest lotus]

This worked Thanks!!

[solemn jetty]

Np

[remote meteor]

Only would need to change one thing from the TPS template

[uncut seal]

thanks! i fixed it before this message, but yeah it was a problem with that, and also something was up with the while loop, so i just moved a validated get in tick and plug it into the attack function

[remote meteor]

The rotate vector instead from the local camera, get from camera manager instead

[solemn jetty]

ohh nice

[solemn jetty]

yup

[sour moat]

✋ If I use "test array", it works well, but if I use "Items",it prints 0 which means no element in the array. Does anyone know why? Is it because it does not support setting array element in another array?

[marble tusk]

That array is on a pure node (the green node), so every time you're using that array you're calling that node again and getting a new copy of the array from it.

[sour moat]

OMG...Thank you a lot😃

[proud iris]

Sup everyone

I draw a blue sphere at actor location (Screenshot 1)

For some weird reason at higher speeds actor position is straight up wrong (Screenshot 2, Screenshot 3 - as you can see, the faster is speed, the bigger the offset)

How to fix that?

[pallid gorge]

In regards to AI Execute events, does the success bool on the Finish Execute node actually correspond to some other functionality that I shouldn't just be using it as a check of the task's outcome or is that all it is? I don't want to be tripping up the engine by making it think something went wrong by saying fail if there just was no desirable condition to call a "success" for my personal use

[drowsy anvil]

I want to find this node on top, but when I search for 'Rotate Vector', I only get this bottom one with (Quat), how do I get the top one?

[marble tusk]

¯_(ツ)_/¯

[quartz kayak]

I've been learning about the concept of delta time and its uses to prevent linking important functions to framerate. If my movement system is structured so that it always moves the player x units per button press, am I right in assuming that incorporating delta time into the distance calculations is irrelevant?

[celest lotus]

Now how to change pawn's forward vector such that W should make the pawn go up direction

i didnt add any movement code in the pawn class yet

[dry sleet]

I don't see why it would be irrelevant? Your code will behave differently if your button press is queried 120 times per second or 60.

You'll move 120 x UNITS or 60 x UNITS per second.

Delta time compensates for that.

[drowsy anvil]

I use version 4.26, I don't think that version has it, can I use something else?

[celest lotus]

why do u use 4.26?

[drowsy anvil]

old code assets that don't have newer versions etc that dont work on newer versions

[celest lotus]

oh

try turning off context sensitive and search

[drowsy anvil]

that doesn't work either, idk what else to do

[celest lotus]

send a screenshot of ur search?

[dry sleet]

But it's down there

[drowsy anvil]

🤦‍♂️ thank you, idk how I didnt see that

[quartz kayak]

what you're saying makes sense but I'm getting confused as to how it can be applied to a dungeon crawler movement system.

Basically what I'm doing is moving the player 1000 units when the movement button is pressed in the direction they are facing

This movement is Lerped using a Timeline alpha to simulate a smooth transition between the old location and the new location

I have noticed that the Lerp or whatever's update rate seems to be tied to the framerate

but that doesn't seem to have a functional impact

[celest lotus]

np

[dark drum]

Timelines are based on time and thus don't need correcting for the number of frames if using it with a lerp node. (Using an alpha curve in the timeline)

[dry sleet]

Yes, that extra context changes things.

If you're using a timeline it already has deltatime correction.

[dark drum]

The success bool in the finish execute node is used by the sequence and selector nodes in the behavior tree. These nodes (depending which one your using) will either break it's flow or continue down the chain.

[quartz kayak]

thanks kings

[dry sleet]

np np!

[dark drum]

That's not entirely true. It depends how you use it. The values used in the curves are yes, but the number of times it executes (updates) is dependent on frames.

[dry sleet]

Yes, but in this case the end result would be the same.

A timeline finishes in the specified time.

But sure, I guess it can be relevant to note that the Update function runs a variable number of times.

[silent stag]

I want to create an objective system, but when I look at examples, I only see tutorials triggered by overlap. For instance, after completing a crafting process, I want to complete an objective. Is there any example like this anywhere?

[dry sleet]

First of all I might recommend this free plugin, which we use for our game with good success:

https://github.com/sinbad/SUQS

This system is based on quest/objective/task ID:s, and lets you finish tasks in code (or via Blueprint) arbitrarily by simply calling FinishTask(TASK_ID)

[silent stag]

I dont have c++ knowladge may i use still ?

[dry sleet]

Yes, it's fully BP exposed.

Although the plugin is source code.

So you'd need to have a basic C++ setup.

[silent stag]

i have

source

in my project

[dry sleet]

Then it should be fine!

Regardless of how you approach it you'd probably have some function similar to FinishTask(task_id), which you could then for instance call by subscribing to an event in your crafting system.

So OnCraftingComponentFinished(ITEM_ID) --> FinishTask(TASK_ID).

[silent stag]

how can we add this

i just download zip file

[dry sleet]

Read the instructions on the repo.

[dark drum]

Creating your own isn't too complicated but you do need to be comfortable with event dispatchers and how to correctly reference things.

[dry sleet]

They're right there.

[dry sleet]

I agree, but this I would say is also a place where you might re-invent the wheel in vain.

Although SUQS does have some shortcomings that I'd like to address, it sure was time saved.

[silent stag]

may i use this on multiplayer game also ?

[dry sleet]

I don't think it is replicated out of the box.

(of course creating a quest system is excellent for learning, by the way -- I was thinking mostly from a production standpoint)

[dark drum]

The time saving can be questionable but that would be down to experience. A basic quest/objective system can be setup from scratch in an hour or two.

[silent stag]

I will try this dispatchers again

but it did not go well last time

[dry sleet]

Yes, but why have a basic, shoddy version of the same thing that you'd constantly need to extend, when you're probably going to end up with roughly the same end-result?

[dark drum]

You'll need a quest manager (actor component) that can be placed on the player controller and then a base quest/objective uobject you use to create the quests. The manager would then have functions to create and initialize the various quest objects and store them. The uobjects when initialize would then bind to the various event dispatchers it needs to know the quest has been completed.

You might need to go through your other systems and add event dispatchers for logic events that the quest system can use. Like picking up an item, interacting with something etc...

[dark drum]

The time it can take to implement someone elses system can often overshadow the time it would take to make one from scratch that could better work with existing systems.

You can also run into an issue where big crop up do to features that might not actually get used.

It's swings and round abouts but it's always good to know how it works either way.

[dry sleet]

Fair enough.

[lunar sleet]

Realistically you won’t understand much when you implement someone else’s code

Gotta get your hands dirty to actually learn

[dry sleet]

Yes, but I also think it's stupid to impose some stigma against using plugins for very common tasks.

[dark drum]

I think the only system I've seen where I've thought 'yea, I'll just use that' is the ultra dynamic sky and weather. It's all self contained and doesn't need anything else but you can have other stuff call functions on it which is nice.

[dry sleet]

The excellent DLG dialogue system is a key one for me.

[lunar sleet]

Depends on the plugin, good non-Epic ones are few and far between

[dry sleet]

Definitely.

But they sure do exist.

I just tend to find them on GitHub rather than the epic store.

[silent stag]

This uobject does not mean c++ class right ?

[dry sleet]

You can make UObjects in Blueprint but the workflow proposed by Pattym is probably best suited for C++.

[dark drum]

It doesn't make a difference. I use blueprint based uobjects all the time. There the backbone for a lot of my complex systems and not a single bit of C++ is used.

[dry sleet]

If you say so. How does world context work with BP UObjects?

[dark drum]

No, you can create bp uobjects. They don't have any context of world but using a manager that's creates them, you can usually get outer and cast to the manager to get references you might need.

[dark drum]

They don't have any world context. 😉 this however is just a mild inconvenience.

[silent stag]

I need to see example inside of quest manager and base quest class

If you dont want to share i will find another way

[dark drum]

I can share an overview of the system I made shortly.

[silent stag]

Thank you

[quartz kayak]

me getting frustrated wondering why a node wasnt working only to realise i hooked it up to the wrong input

[dry sleet]

>debugging function not working for 1 hour
>realizing I never call the function

[dark drum]

Guilty as charged haha

[dark drum]

This is the general gyst if you can follow it. The first 4 screenshots are from the quest manager, the next 3 are from the base quest object and the last one is setting up a quest where the player needs to speak to an NPC. Adding a new quest is a simple as getting the quest manager and calling the add quest function and specifying the quest object you want to add. In the quest object you override the 'Quest Started' function and add the logic to start the event dispatchers you need. In the example, i get an NPC dialogue component and bind to the on conversation started. When this happens the quest object knows it has happened. You can then override the 'QuestCompleted' function to define what then happens. The quest manager will automatically remove the quest from the active quest list when the 'OnQuestCompleted' event dispatcher is called inside the quest object.

There's a few other stuff but there not important to the general function of the core quest system.

[silent stag]

I am on it thanks again

[dark drum]

No problem.

[noble quiver]

Hi. So I have an actor blueprint that is causing problem. It's not returning as valid on my player character, and yet the component has no compiler errors.

To fix it, I delete the component and replace it. The component now returns as valid, no changes have been made in the component script itself.

However, whenever I reopen the project, the component that just returned valid before closing UE5, is now no longer returning as valid.

Does anyone have any idea on why/how this oddness occurs?

[silent stag]

What is this "AC UI manager base" ?

I start questions with first picture ofc 😄

[dark drum]

That's just a setup I use for handling UI stuff. You can just create you're quest widget and add to viewport here.

[dark drum]

Interesting, the outer of a widget that used in a widget component is the game instance. Hmmm... 🤔

[silent stag]

I can see widget in game when i add quest manager component to character but getting this error

[uncut shale]

This might bee a dumb question, but what us the difference between a set and an array?

[dark drum]

You should add the quest manager to the player controller. As for the error, I'm not sure what could be causing it. The only thing I can think of is it's being called more than once but one of those times it fails to create the widget.

[dark drum]

A set is an unordered list of unique values. They're great for when you want to just compare lists and the actual order isn't important. They also have different functions to help combine and split sets.

[uncut shale]

Ohh ok

[silent stag]

May i add to viewport in player controller ?

[dark drum]

Yea, UI stuff is assigned to a player controller anyway.

[uncut shale]

Btw could you take an unordered set and turn it into an ordered array?

[dark drum]

You can convert a set into an array for when you need to loop through them. The order tends to be the order they were added to the set but this isn't gaurenteed, especially if you've done some manipulation to the set.

[uncut shale]

Oh true true

I just have a few arrays that can be turned into sets

[silent stag]

This dispatchers class also quest base right ?

[dark drum]

Which dispatchers?

[silent stag]

second picture

On quest manager

[silent stag]

Here

[dark drum]

The reply only points to the whole comment not a specific screenshot.

[dark drum]

That's in the quest manager.

[silent stag]

Yes i am asking event dispatchers classes

should be basequest right

[dark drum]

The event dispatchers shown in the screenshot should be created on the quest manager. The quest object base has it's own event dispatchers.

[silent stag]

I understand that but i was asking event dispatchers has any input here

[summer pewter]

how would i implement a first person directional melee sword system like mount and blade..

i have the animations set up i just need a method of picking directions

[dark drum]

Oh, i get you. One min.

[dark drum]

I only got to setting up the quest added and quest completed but they have an input that is the quest object. (I had planned to set up something on the quest updated so the UI can be updated, you can always ingore that one for now)

[silent stag]

perfect thank you again

[dark drum]

Wouldn't the direction just be the players desired movement direction when they click the melee input? If there not moving, it would just be the forward vector of the character.

[lyric quiver]

I have this bp to do DoT damage to the enemy but the event doesn't activate. I can print a string after the do once node but not in the event

[dark drum]

Timers with a time of 0 don't get created as it would be the same tick. Instead of having the delay in the Apply DoT event, use that as the time for the timer and remove the delay node.

[lyric quiver]

ok I'll try that thanks

[shut compass]

I have an attribute named Mesh which is a path to a static mesh. How can I convert my path into a static mesh object reference so I can read the bounds of the object?

[mortal pendant]

How can I make a editabletextbox that I can interact with through hand tracking? Any one know a guide I can use? I've been looking but haven't found a solution

[gentle flare]

Aight, why can't my line trace detect my metahuman?

[celest lotus]

So here im possessing the mirror and trying to rotate that by rotating the platform but as u can see in the video when i rotate the platform and then possess the mirror again it changes its location and rotation. I cant understand whats going on here can anyone help?

[celest lotus]

try checking collision response for the channel u r doing on line trace

it should be blocked only then it will detect the hit

[maiden heath]

Hi guys, I have some information. I would like to make it so that if I give values to my character I increase the height and length of his arms. Is there a way or even a video where you explain it to me?

[dark drum]

You've not shown how you're possessing/unpossessing the mirror.

[celest lotus]

im doing that by using the built in function Possess and here it is

[dark drum]

Whats the switch player function?

[celest lotus]

its a event in thirdPersonBP to call the mirrorManager Function

[dark drum]

Its normally a good idea to show the flow of functions being called. 😉 The issue might be in that function. 🤷‍♂️

[celest lotus]

parent manager is the parent class of the mirror Manager class

the defination of that function is in mirror manager class

[jolly hedge]

Hi guys, i have a problem which i dont fully understand how to solve. i want to make the player win after he has done something. But i dont want to check everyframe if he has achieved it. is there otherways to do this?

[trim matrix]

event

dispatcher

[minor river]

I have recently started delving into Unreal Engine 5.3. Is it possible to build a library here for, for example, my materials and objects?

[jolly hedge]

does this look like a object that will move only 200 in Z axis value or am i doing something wrong?

[fluid lagoon]

Hey everyone! I was wondering if anyone knew an alternative method than using EventTick to determine whether a boolean is true or false? Trying to not use cost effective methods to performance if there is another easier way to check.

[pulsar vigil]

Hello guys im using smart object as explained in a tutorial of Ryan Laley and it work fine but i would like to cast an actor from the class gameplay.Behaviour that is used to use smart object system but i can't get the class any idea ?

[tiny wing]

try this...on lerp, for A: connect Get current location. For B: Get current location, the connect x and y, for z : z+ 200. And use set actor location instead of add actor local of set

[digital valve]

Why would already spawned chars get a value but not the player generated pawn off same bp?

[thin panther]

You'll need to cache the get location or it still won't work

[jolly hedge]

what does it to mean cache the location

[tiny wing]

delete do once, and try this. make a boolian (eg : is hidden?). The after the brach on your code for true: make brach with boolian (is hidden?). on true: connect your set hidden false part and set the boolian is false. On false of your first brach (is dark?) make a brach with boolian(is hidden) on false of the brach connect your hiding part the set boolian value is true

[jolly hedge]

i tried this and it might work, but what i dont understand is, it now only moves up 200 in Z, it just doesnt stop moving. it goes above and beyond. i plugged it into an Action input Event so i dont understand

[lofty rapids]

whats going on here, your looking for an actor with that boolean set ?

[thin panther]

Put it into a variable

Otherwise you're trying to lerp between changing values which doesn't work

[digital valve]

yes. Its setting the starting board piece as the current piece

[thin panther]

Imagine trying to run between point a and point b, but they're constantly moving further apart

[digital valve]

So then i have all the pieces connect with next piece and previous piece but it wont work unless the start piece is the current piece at the begining

[lofty rapids]

you could use a break on the forEach to be a bit more efficient, but what is not working about it ?

[digital valve]

it will only move a pawn already spawned in the game. but for instance if you have the pawn generated off a player start etc it wont move

and gets a null value

I could do a pawn possession instead of this but wanted it where players could customize their pawn which is why im doing it this way.

[tiny wing]

so you want to work it for a sing time ? right?

[wintry meteor]

anyone know on how do i transfer data "score" of A_Quiz to "random score" of WB_leaderboard?

[jolly hedge]

yes, i dont want it to constantly move. i want it to move 200 in Z axis once

[tiny wing]

Are you using enhanced input?

[jolly hedge]

yessir

i tried, it just flies of

look here

https://jmp.sh/zZnezyw6

[thin panther]

So do what I said with the caching and it wont

[lofty rapids]

When using format text, when using an input as a integer, it adds commas to the number. How can i stop that ?

testing{someNumber} becomes testing1,200

i want it to be testing1200

without the comma

[jolly hedge]

like this:

??

[thin panther]

Yep

[jolly hedge]

not excatly where i want it to be or how it should move

just teleport there and slowly moves up

[thin panther]

Then your current location is incorrect

[jolly hedge]

Yep u were right

thank you for the help

but why is it necessary to store it into a variable?

or like you called it "cache" it

[lofty rapids]

floor:1,200; should be floor:1200;

i can parse with a different character but i would like to just get rid of commas

in the number of the format text

[wintry meteor]

anyone know how to do it?

[lofty rapids]

i figured it out i converted the number to text first and uncheck use grouping

[thin panther]

So you want to move between the initial location and the final location.

What you're doing otherwise with getting the location is your point is ever changing.

So one frame you might be moving between 0 and 200, then next frame it might be 1 and 201, then 3 and 203, all the way to infinity

You're constantly moving the endpoint away, so it can never reach it

[jolly hedge]

I see, thank you for clarifying it ☺️

[lofty rapids]

is there only one a_quiz ?

you can probably get actor of class, and get the variable

but it's on tick, i would probably set the reference on load or something

so you don't have to keep get actor of class

on tick

usually i don't like to set the text on tick, but rather call a display function or event when it needs to update

for instance you only need it to update when the value changes, not constantly update

but it's a performance thing and doesn't really change much

[wintry meteor]

it worked!!!!!!

thankyou

i just want it to display as text to player

[wintry meteor]

i choose tick bcs i want it to keep up to date all time

[lofty rapids]

makes sense, probably won't be a lot but i do microperformance stuff all the time

a lot of littles add up to a big

[long hawk]

What analytics are you using for your games? I was using flurry but they’re shutting down now. I found out firebase is only for android. I have an app in both App Store and play store. Wondering what analytics service everyone else is using..

[drifting dune]

anyone can help me with this please?

https://www.reddit.com/r/unrealengine/comments/1adypel/comment/kk4b18v/?context=3

[brisk rain]

Hello! I'm making an ad system to show an ad whenever the user dies, however it crashes about 1/3 of the times. Heres the code.

heres the crash summary: https://pastebin.com/KqS2i5EU

I dont call show or load ad anywhere else btw and I have set the test ad id

[carmine moat]

This is a very basic question.
I don't like how I cannot scroll view distance of exponential heightFog more than 10000.
I know I can type in to get more than that.
But I want to smoothly scroll the distance value interactively without typing.
Is it possible to create a blueprint to be able to control the slider more than 10000?

Thank you!

[dark drum]

Oofff a ad every time you die. o.O I always give low score reviews when this happens. So annoying.

Anyway, the error tells you the issue, 'The ad unit ID must be set on InterstitialAd before show is called.' looking at the BP, you attempt to show an ad before it's been loaded so I would say this is the issue.

[carmine moat]

I want it to go beyond 10000without typing it

[brisk rain]

I will make it like 1 third of the time, and also each level lasts like 4 minutes

[brisk rain]

won't it work since I have an "is interstitial ad availlable"

or do I need a requested too?

[dark drum]

I would you would need to check if one is available, if so then load it.

[brisk rain]

thats what im doing... check at the left

[dark drum]

Yea you check if one is available but try to show it before you've loaded it.

[brisk rain]

?

im doing that already

oh

[drifting dune]

What am i doing wrong with this? My character doesnt do its animation after attack

[dark drum]

And where do you load the ad before you attempt to show it?

[brisk rain]

i misread what you said

[brisk rain]

well I load a new ad at the start and whenever I show an ad or fail to do so

even if one isnt loaded it should return the branch at the left false and not attempt to show an ad

[random pulsar]

Can someone give me a random game theme?I will try to make a simple game in a few days

[dark drum]

Caterpillar survival game

[random pulsar]

Thx

[cobalt gulch]

How do I do that though

this doesnt effect anything

[dark drum]

It sounds like you need a simple inventory system to keep track of the amounts in game.

[dark drum]

Fine, I will reveal my secrets. 😉 This is what I do.

Assuming it's just the amounts, you could probally just use a map where the key is the item name and the value is the amount (int). When you pickup or drop something, you just need to find it in the map and update the number. The UI can then use this to show the list.

[pulsar vigil]

hey guys what would be the node and the layout to get a pawn/character class and get the children and randomise it to spawn it as ia ? i found this on internet wich is cool but i want to use a specific class of npc and randomise the children of it, also i know its not spawn actor but spawn ia

[lunar sleet]

What is IA in this context?

[junior prairie]

Is it possible to increase the radius for nav link proxies? I've got a setup for launching an actor from point A to point B, but when they navigate to it in a group it bottlenecks and they all stand still at the proxy location

[pulsar vigil]

the pawn class i want to get the children and randomise and spawn it as an ia

[lunar sleet]

Read the question again. Are you talking about AI?

[lunar sleet]

Not sure, may want to ask in #gameplay-ai

[fiery anvil]

I’ve been having trouble with my timeline saying “timeline paused” and I couldn’t find any solution. I have 2 other types of doors with the same code on opening and they work amazingly but this one doesn’t and I don’t know why. Anyone help please. Thanks

[pulsar vigil]

i dont understand, i want to spawn an ai wich use this character class wich as children with unique character and i want to randomise from that list im sorry if i dont understand i realy dont get where i need to precise anything

[lunar sleet]

May I ask why you have a Flip Flop with nothing connected to B?

[fiery anvil]

I was using it then I decided not to

To close the door

[lunar sleet]

It’s the first time you said “ai” instead of this “ia” lol

[pulsar vigil]

oh sorry im french lmao

[fiery anvil]

I was having the reverse go into the B of flip flop but I just decided I don’t want it to close

It works on my 2 other doors with the same exact code so idk why it isn’t here

[carmine moat]

Guys, sorry for bugging, it is a bit of urgent matter, and I am noob in Blueprint. If I can borrow any brain it is greatly appreciated.
I have just one Exponential Height Fog in a blueprint.

There is a node called Set Start Distance to control its value.
But the one I need is Set Start Distance of Volumetric Fog inside Exponential Height fog.
How can I create a node to control this value??

Thanks a bunch.

[lunar sleet]

Yeah, I thought you might be 😀 np, just wanted to make sure we’re talking about the same thing. There’s a few get children nodes but I’m not sure if either of them gets you child blueprints

[fiery anvil]

Anyone please 😭😭

[lunar sleet]

Read #rules

[pulsar vigil]

yes it seem that i can't for what i saw i mean nothing with the context

[lunar sleet]

There should be something let me check

[pulsar vigil]

use play at start

[pulsar vigil]

thx sir, i doubt there is nothing too

[fiery anvil]

Its still the same

[pulsar vigil]

oh then i dont know sry

[fiery anvil]

It’s okay Ty tho

[carmine moat]

There are 3 start distance in exponential height fog, and the set node only has two of them. I need the 3rd one...

[flat coral]

I'm trying to make an actor component that subclasses scene component, because I need the transform. But I've found it's really hard to use with no visual element. Is there a way to attach an editor-only visual element to a scene component, like that white sphere that the default scene components have, or an arrow like the arrow component? Is there a way to include an Arrow or something that looks like it inside a different type of ActorComponent? I wish you could just subclass it.

[pulsar vigil]

while looking at it a second time it seem that the flip flop is sus indeed

[pulsar vigil]

maybe u can drag the fog actor and get that parameter idk

[fiery anvil]

Let me try to remove it but I don’t think that’s the problem cuz I have 2 other doors with different open scenarios but the same code and it works even tho the flip flop is there

I’ll try tho

One sec

Nope it’s the exact same

[lunar sleet]

Sadly all I could find is people using a function that goes over each class and if it’s got that parent, adds it to an array.

https://forums.unrealengine.com/t/find-all-subclasses-of-a-certain-baseclass/337736/2

[pulsar vigil]

and did u tried to debug it and see where the flow stop ?

[fiery anvil]

im new to unreal sorry i have no idea what and how to do that 😭

[pulsar vigil]

go check how to debug that will save ur life

[fiery anvil]

ill search it up rn

ty

[lunar sleet]

Can you get volumetric fog from inside exponential height fog? Dunno much about fog tbh

[pulsar vigil]

damn that look usefull but might not be realy performance friendly maybe its ok cause cpp i never used cpp for now ill try it if i dont find a simple way thx

[dull birch]

https://www.youtube.com/watch?v=qkfPIPrXHLY&t=9s

[lunar sleet]

You can’t have components inside components afaik

[fiery anvil]

i searched up debugging on youtube and google and i found this guy talking abt break points am i on the right track

[flat coral]

Even just giving it the same arrow mesh would work but I can't even figure that out

[lunar sleet]

You could attach a component to component dynamically on construct maybe

[pulsar vigil]

i mgiht be to much of a nooby and not understand the question, but dont u can just add a scene component to ur actor and use his transform ?

[flat coral]

Would that construct fast enough to be useful in editor though? Because that's really the main place I need it

[lunar sleet]

Construct runs at editor time

[flat coral]

But actor components dont have a construct function do they?

[carmine moat]

Yes, and I can set values for all the parameters of volumetric fog section. But I just cannot edit Volumetric Fog Start Distance, there are few parameters missing in blueprint for some reason.

[craggy star]

anyone know any youtube tutorial for being able to enter a car in a third person template, i tried a tutorial but it wasn't working, and I made sure the blueprints were perfectly done

[fiery anvil]

OH MY GOSH i just found out the problem was that i forgot to put a get player controler when enabling input 😭 idk if breakpoints is true debugging but it sure did help so thanks

[cobalt gulch]

Thx

[zealous comet]

I have two blueprint actors that completely glitched out and now share the same event graph, anyone know how to fix it

[lunar sleet]

Oh I haven’t checked tbh, might not have

[fiery anvil]

theyre inseperable

what a cute couple

i have no idea

[lunar sleet]

@pulsar vigil how many children are you working with

[flat coral]

I re-checked but yeah I've actually run into that issue before. I really wish they DID have constructors

[fiery anvil]

woah there

[lunar sleet]

Children bp classes*

[fiery anvil]

phrase it a little diffrent buddy

[lunar sleet]

Maybe he’s a child therapist or an educator you don’t know

[fiery anvil]

mhm

or maybe he likes children

[lyric quiver]

I'm trying to make an upgrade system for my game. If I have a bunch of custom events, each being an upgrade, is there a way I could choose randomly from a list of them and assign that chosen upgrade to be selected like on a button click?

[fiery anvil]

there is but i forgot the name

someone remind

[carmine moat]

Actually I found it but I donno how to make it exposed to the editable value of blueprint.
It shows up to the surface of blueprint but I cannot change the value from details panel of viewport

[lunar sleet]

Did you search for start ranges

Oh that’s your var

[carmine moat]

yeah

[lunar sleet]

Well you’re setting it already so how can you not change it

[carmine moat]

I donno lol

[lunar sleet]

Hang on

You’re setting this on construct

[carmine moat]

yes

It does not need to be runtime

[lunar sleet]

Ofc it won’t change you’re resetting it with every tick

Construct doesn’t just fire once

It’s editor time “tick”

So if you drag it to 0 but the code says nah change this to 65000 it will always reset

[carmine moat]

oh ok

wait so I should do it in event graph?

sorry too noob on this

[lunar sleet]

If you want to do it in editor time that’s fine, but you need to do it differently. You’re currently trying to change variable that is constantly being overwritten by another variable

You’re not changing the reference you’re just changing your copy

[carmine moat]

https://tenor.com/view/the-office-steve-carell-gif-21998253

[lunar sleet]

Maybe you can use Set by Ref on the Start Distances

Or just set the original Start Distance to whatever you want

[carmine moat]

I did not know it can be complex... All I wanted was a simple blueprint with one slider, to control volumetric fog's start renges

this one is not the value I wanna change... but...
Why this works?
it is in construction script @lunar sleet

[dawn gazelle]

When you're adjusting the value, the construction script is getting fired. If you're setting the value on the construction script, it sets the value to what you've set in the construction script, meaning it resets the adjusment you've made.

This new one doesn't appear to be setting any value, it's calling a function that could be adjusting a value that isn't your "Start Ranges" variable.

[lunar sleet]

Yeah I said on tick but Datura is correct, it’s when you make a change

[dawn gazelle]

In other words - you can't expect to adjust a variable of a placed actor when that variable is being set within the construction script. The construction script's value will be the one that is used and will override any changes you make.

[lunar sleet]

Is that new function custom made then?

[carmine moat]

Ok so that function is the one doing some trick

no it is not a custom made, I can just search this one. Not sure how it is doing

[dawn gazelle]

There is no "trick". It's a matter of you're not setting the "Start Ranges" variable in the construction script.

[lunar sleet]

Ok good that’s a built-in function

[dawn gazelle]

Because you're not doing that, you're able to set the value as you want. Then it's calling into that particular function to do whatever.

[carmine moat]

ok, then how can I set the value without overwriting it?

[dawn gazelle]

Why do you need it set in the construction script?

[carmine moat]

it does not have to be in the construction script... I was just dumb and too new to blueprint...

[dawn gazelle]

You can set the value as you need, you can also make it so it has a default value. You cannot set the value on the construction script and expect to also be able to set the value manually.

[carmine moat]

basically it is for a virtual production scene, a on set director needs a single slider to control the starting distance of Volumetrig Fog in the Exponential Height fog

As stupid as it sounds.... if we have bunch of sliders that confuse people who have never used unreal... So I was order to make a single slider

[flat coral]

So what's the easiest way to add two transforms together, if this is illegal for whatever reason?

Ah HA! Compose transforms!

[viscid gust]

Hello, I have an actor BP that is my level manager. Essentially its supposed to, on BeginPlay, place all the actors and set variables from my game instance. I use it to load up a save from the main menu level. However its not running BeginPlay. Is there a reason why it wouldn't?

It plays when I run the level straight from PIE, but not when I run the level via OpenLevel node from MainMenu Level.

[flat coral]

So one thing with BeginPlay is that AFAIK there is no guarantee about which order actors will have their BeginPlay function run if they're all in-level already. That can make race conditions possible if actors refer to each other during their BeginPlay code.
Is it possible that your BeginPlay is being called, but is exiting fairly quickly because it references something that could be invalid at that stage?

[viscid gust]

Well I was thinking that as well about the order, but I put breakpoint on the BeginPlay node and it only catches when I play level from PIE

It doesn't catch when I open the level from OpenLevel node.

[pulsar vigil]

sorry i didnt saw it only two for now but i want it somehow a bit scalable i just want to gather them in a list or array and randomise from it

[lunar sleet]

@dawn gazelle you know any easy way to get all children classes of a class without having to query every class ?

[viscid gust]

@flat coral It's confusing because I believe every other actor is running its beginplay from the OpenLevel node

[dawn gazelle]

Don't think there's anything in blueprint that would allow one to do that.

[lunar sleet]

Thought as much. Thanks for confirming

[pulsar vigil]

thx both of u i ll try to find something else or use the cpp tips u gave'd me

[pulsar vigil]

Could i gather my child class on an array and then use that array in the spawn actor ? in bp ?

[viscid gust]

Alright so apparently if I remove BeginPlay from the LevelManager blueprint, and replace it with a custom event and then call that event from the BP_FirstPersonCharacter BeginPlay it STILL doesnt actually call that event. Soo something is wrong with my BP_LevelManager?

[lunar sleet]

That is what I was going to recommend but the gathering part is the problem

[pulsar vigil]

i see i feel like cpp will be require if i want to do something like this 😦 i need to learn how to implement cpp thing

[lunar sleet]

That function I found should be fairly simple to implement I think

[pulsar vigil]

oh i see the one u gave'd me ? is it performance ok cause its cpp ?

[lunar sleet]

Maybe you need to use proc gen for this tho

[lunar sleet]

It’s still iterating over each class as far as I could tell but cpp is always faster

[pulsar vigil]

damn if its heavy i'd rather query each child

[queen heron]

can I not call a custom event thats in the editor utility widget from a regular widget asset?

yep... the widget which I wanna call the custom event from also needs to be a editor utility widget

makes sense

[celest tangle]

Get actor bounds for spline mesh component is not working properly? Found random thread saying set start/end tangents of the mesh might mess w/ the dimensions. Any fix for this? Trying to set the box extent of a spline mesh component's box collision, after the mesh is resized in-game.

[viscid gust]

@flat coral Ok So it actually is working I was just setting some variables incorrectly. Interesting that BeginPlay still doesnt catch on a breakpoint, even though its technically firing.

[flat coral]

My answers were because I'd also run into BeginPlay issues happening only in packaged builds where it SEEMED like a race condition, and the truth is I never really got to the bottom of why that was happening, especially so consistently. I just sorta fortified the code to be resilient to the race condition and that fixed the problem, but it would be nice to have Understanding too.

[viscid gust]

Yeah it would be nice to know whats happening but for now I'll settle for it just working haha

[queen heron]

I seem to be unable to send the trigger between these two editor utility widgets

idk what I'm doing wrong

[visual crest]

is it cheaper to check then cast? or just cast and use it as my bool?

[lunar sleet]

Check what? And don’t worry about perf issues with cast at this stage, it only becomes an issue when you’re loading a lot of heavy assets at once

[visual crest]

I am checking if an item is currently equipped. If not I equip it. But I was wondering if its cheaper to check if the class it = to what I want or just cast to the item and use if it fails or not as my bool

[lunar sleet]

A cast is a type check

[visual crest]

Because if I use it as my bool I could end up casting to the then like 20+ times

so if I use a check I am just checking twice?

[lunar sleet]

Yes

[visual crest]

So cast is better then

Thanks

Its hard to know because some say cast is expensive and others say its cheap

And I have noway of taring apart the coding to find out lol

[fiery anvil]

I have this set up for picking and putting a note down, for some reason my input key (E) is not working. i placed an event tick in its place and the code started working, but once i placed the interaction or even plain E it dosnt work. can anyone help? i genuinely dont know the problem considering E works fine on all my other code. thanks

I tried using a random other key like Q to test it and it didnt work, but the problem isnt with the code itself so i dont know how to fix this. please help

(i tried debuging it when i first found out it wasnt working and it didnt get past pressing E, it completely didnt render)

[heady burrow]

is there a way to get feedback from decals so I can see what actors are "decaled" ?

[visual crest]

How is this variable used exactly? I want to pass it through a call function and check if the action/button that caused is still active/pressed. Is that possible?

[dark drum]

The reason people say to avoid casting is down the memory usage. Casting forces the bp to load the actor, even if it's not being used.

Over using casting could result in a single BP forcing your entire project to be loaded.

Ultimately though, you want to use a good class hierarchy where you can cast to base actors that don't result in loading large files like large materials, audio files etc...

Having said this, if the thing is going to be loaded anyway, it's not an issue.

[fiery anvil]

oh and my E key works in other BP but for some reason not in the ones im using right now despite them both being an actor bp so im js super confused on why it isnt working in this specific BP

[visual crest]

Ah I see

So if I cast to a BP that cast to 100 other BP it loads them aswell?

[dark drum]

Yep. You can look at an assets size map to see what it loads. (Right click menu)

[dark drum]

Have you enabled input on the actor?

[visual crest]

Thanks

[fiery anvil]

explain that in a way dumb person will understand please 😭

[craggy star]

what is that?

I have the same issue as @fiery anvil

[dark drum]

Only the player controller and the pawn it controls receives inputs by default. For anything else, it needs to be enabled.

[fiery anvil]

well how do i

i didnt do that on my other bps and it worked but ill try

OHHHH
WAIT

[dark drum]

What are they? Just actors you've placed in the level?

[fiery anvil]

I REMEMBEr

i did enable input

i js forgot abt it

ty

ill try it now

smth like this right

if yes then okay ty

[dark drum]

Yea.

[lunar sleet]

Once loaded they generally stay loaded tho

[dark drum]

This is because the game instance is only loaded once and the same one is used until the game is closed.

When you play in PIE, it has to load it. When you use the open level, the game instance has already been loaded.

You might want to use the game state if you're needing to spawn actors in a level when it loads.

[dark drum]

From my understanding, unused assets will eventually get unloaded/garbage collected.

[lunar sleet]

Yeah, if not in use, iirc

[visual crest]

how do I add an item to a specified index on an array? I know insert does that but I want to over write the data at the targeted index not just insert

[lunar sleet]

Set array elem node

[visual crest]

thanks! good old brain fart there lol

[willow cedar]

How would I smoothly Interpolate a World Location getting updated every .5 seconds?

[wraith loom]

What do I plug into world context object?

[jolly cipher]

Has anyone ever seen a function output the results like this in a animgraph?
Following a written tutorial and says to create a function to input velocity to then output the XY output I need,
Then just says to use the results in the anim graph but never done it like this before, theres no info on how to do this,
Any idea how this is done?

[brazen merlin]

Right click a 2d vector variable, split struct. Works for inputs and outputs of structs, such as vector2d, 3d, color, etc

[fringe veldt]

please excuse the spaghetti but HUH?
To me this looks like

void fill(TArray<FSideConfig>& SideConfigs){
  int numToFill = FMath::Clamp(6-SideConfigs.Num(), 0, 6);
  // print numToFill
  for (int i = 1; i <= numToFill){
    // print i
    FaceConfig fc;
    // init defaults
    SideConfigs.Add(fc)
    // print SideConfigs.Num()
  }
}

Why is the output log printing:

LogBlueprintUserMessages: [Character_Die_C_0] 6
LogBlueprintUserMessages: [Character_Die_C_0] 1
LogBlueprintUserMessages: [Character_Die_C_0] 1
LogBlueprintUserMessages: [Character_Die_C_0] 2
LogBlueprintUserMessages: [Character_Die_C_0] 2
LogBlueprintUserMessages: [Character_Die_C_0] 3
LogBlueprintUserMessages: [Character_Die_C_0] 3

instead of

LogBlueprintUserMessages: [Character_Die_C_0] 6
LogBlueprintUserMessages: [Character_Die_C_0] 1
LogBlueprintUserMessages: [Character_Die_C_0] 1
LogBlueprintUserMessages: [Character_Die_C_0] 2
LogBlueprintUserMessages: [Character_Die_C_0] 2
LogBlueprintUserMessages: [Character_Die_C_0] 3
LogBlueprintUserMessages: [Character_Die_C_0] 3
LogBlueprintUserMessages: [Character_Die_C_0] 4
LogBlueprintUserMessages: [Character_Die_C_0] 4
LogBlueprintUserMessages: [Character_Die_C_0] 5
LogBlueprintUserMessages: [Character_Die_C_0] 5
LogBlueprintUserMessages: [Character_Die_C_0] 6
LogBlueprintUserMessages: [Character_Die_C_0] 6

sorry the picture is at the bottom

[twin shale]

Does anyone happen to know if you can set this from Blueprints? I can change these parameters no problem but I want to change the actual layer asset:

[solemn basin]

I know there is more to this than what I have here.. I just don't know what it is.

[velvet pendant]

Alternative to cast?

I have a Variable called [EnemyDMG] in ai_enemy. How i can change it from Player_Char without Cast to AI_Enemy?

[thin panther]

why don't you want to cast

[velvet pendant]

cuz it's expansive

[thin panther]

that couldnt be further from the truth

[velvet pendant]

and for bigger games, might be a broken feature

[thin panther]

it's a very common myth

[velvet pendant]

yea, but best it's to prevent, right?

just if exists tho

[thin panther]

no, because there is nothing to prevent

casting is fine, and unavoidable

[velvet pendant]

It's fr just a myth?

[thin panther]

yep

[velvet pendant]

I heard more ppl said it's so freekin expansive

and i was like, ouch. hope it's not freakin

with my resourse later.

Also, do you know how i could change the style image from a button?

in graph of a wg

I can get it work only with images, with set brush

but not with buttons tho

[thin panther]

the "expense" comes from casting to something which is unloaded.
when you do so in blueprints, it has to load it into memory.

This cost can be virtually nullified by using proper code only base classes however

[thin panther]

yeah there's a bunch of nesting you have to go through

if you get the button's style you should be able to break it into it's series of images iirc

[velvet pendant]

for context, i wanna do a button for 3 ,,Items" you could buy from shop

got to work trough images, but not buttons

[velvet pendant]

i see

[viscid gust]

Hello, I'm having a problem adding elements to a map. If the PlantsInWorld map from SaveGame's length is 2 then the for each loop should add 2 elements to the PlantsInWorld from GameInstance but it only ever adds 1. Also when I put a breakpoint on the return node and check the PlantsInWorld map from SaveGame's length by hovering over it, it shows the length is 2 but when I expand it Unreal crashes.

[velvet pendant]

@thin panther Seems to like by breaking the style, ty

[twin perch]

How can i get a my Hierarchical instanced static mesh component to save its instances when i close my program, i have a utility widget that spawns the instances, however when i close my program they disapear.

[marble echo]

am I doing something wrong here?

[viscid gust]

Figured it out. Was trying to add an Object Ref to the map and I think it wasnt changing the key when adding more than one Object. Changed the key variable to a structure with all the object variables.

[faint pasture]

What is the class in WeaponStruct?

What is the actual type of the variable

[marble echo]

Actor class reference

[faint pasture]

That's too general, Actor doesn't have an Alt Fire or Mag Current

Does every class you'll put in there have a base class?

[marble echo]

should it pick the specific class on the data struct?

[marble echo]

theyre all just actors

[faint pasture]

Then you'll need to either have a common base class or interface to talk to them all the same

or a component on them

[marble echo]

yep sorry, think i'm missing some variables

[faint pasture]

What you're doing is saying "Get the MagCurrent of this Actor" and the computer is saying "WTF, Actor doesn't HAVE a MagCurrent property". All it knows is that the result of that get is an Actor, doesn't know any more than that.

are these all held items or something?

[marble echo]

they have the same variables now

i imagine i'm using this call wrong?

[marble echo]

these are just weapon stats in a data table

[faint pasture]

What is the type of the Actor Class (purple pin coming out of your weapon struct)?

[marble echo]

'actor class reference'

[faint pasture]

Then why are you trying to get them as if they're instance variables?

[marble echo]

how do you mean sorry?

[faint pasture]

Actor doesn't have those variables

that's the core of your problem

[marble echo]

oh hmm

[faint pasture]

What are you actually trying to do?

[marble echo]

this is for the fire button, when you press fire it's supposed to check what gun you have out and fire accordingly

i have actor classes for guns, and i want it to be ableto pick the right actor

[faint pasture]

why is it reaching into the world and getting the first actor it comes across of that class?

why not
Fire Button -> MyGun.Fire

[marble echo]

thats essentially what i want to do

[faint pasture]

I'd make a base weapon class that contains that bigass struct as a variable so you can just reach in and grab that stuff

[marble echo]

but it needs to know what MyGun is

alright that might work, thanks

as long as i can use actor sequencers in them

[faint pasture]

Equipping:
Spawn actor of class GunBase -> Attach it -> set MyGun

Firing:
Fire Input -> if MyGun is valid -> MyGun.Fire

GunBase can contain a variable of type WeaponStruct if you want to easily keep their runtime stats in sync with the data table

[marble echo]

that is definitely what im trying to do, but maybe my approach is wrong

[faint pasture]

RandomGunSpawner:
SpawnEvent -> get random data table row -> spawn actor from class (it'll be a GunBase) -> ActorIJustSpawned.WeaponStruct = TheDataTableRow

now the gun has a copy of the data table row used to spawn it so it has its starting stats

and in GunBase you can do all your general Fire/StopFire Reload etc logic making it data driven by its WeaponStruct

in subclasses of GunBase you might just swap out meshes and stuff, you might not even need to do that depending on how data driven you can make GunBase

You could certainly make a system where you only have GunBase and everything else is just data, but that depends.

[marble echo]

gotcha, thank you, i'll make a proper weapon base

[flat coral]

Someone rescue me from this boolean hell. I've written this shit two ways and I hate them both, the readability is just awful either way.

Basically the goal here is to take a few inputs on a flying NPC, whether it's moving, whether it can strafe, and whether it's near an enemy, and use those to either rotate toward the target, or rotate to face movement direction.

[faint pasture]

I mean it's an either/or right?

why the 2nd branch

either you rotate to target, or to movement

unless you intend not rotating to be a state

[flat coral]

Not rotating is absolutely a state!

[faint pasture]

when can it NOT strafe?

or is strafability a stat like some flying dudes can strafe and others can't

[flat coral]

It's more like what type of flying thing this is. This is the superclass for all of it. A robot can strafe, a missile cant

Yeah, if it isn't moving AND it isn't near an enemy, it won't rotate at all.

[carmine moat]

@lunar sleet @dawn gazelle so a tech senior artist took a look at the function to drive Start distance of Volumetric fog in C++. He said it is actually one of the few parameters that Unreal Engine does not allow to modify in blueprint. Hence there is no functions to modify that specific parameter. Regardless, I appreciate you two's effort to help. Thank you again.

[faint pasture]

So a missile can't rotate to face a target like a heatseeker?

idk why strafing has anything to do with orientation

not being able to strafe is more like "Can't move anywhere but forward"

[flat coral]

Oh because otherwise it's ALL strafing! The movement component I'm using is pretty terrible at handling rotation, so I'm doing it manually.

In the case of a missile, the AI component will just move it towards the target, but to make it LOOK like the rocket on the back is doing the work, I reverse-engineer the orientation FROM the movement

[faint pasture]

ok so movement is the free variable, and orientation depends on it + other stats

[flat coral]

Yeah basically. It's like "I have no idea what 'forward' is, but I know what direction i'm moving, and i know where the enemy is"

[faint pasture]

assuming your boolean logic is correct then I'd just do the 2 if chain

[earnest vigil]

Hey guys I am trying to calculate the velocity of an object using 2 points WITHOUT using physics. Physics will not allow me to use time dilation which is needed, but without physics I cannot use the get velocity nodes so It seems as though I need to calculate it.

I am wondering if anyone has any idea how to calculate velocity without using the games delta time as there will be a considerable amount of time between when I "pause" the actors and then "resume" them.

[compact rain]

Hello All,

I hope I am using this venue correctly.

I am new to Unreal and am trying to put together a framework to build a larger game project in and I have gotten myself to a place where I am not sure what the next steps are.

I am streaming in levels using the LoadStreamLevel node in a Blueprint Actor that has a collision box component. Pretty straightforward stuff.

All of my levels stream in fine, but the various bots that I have in the levels seem to be disconnected from their controllers and Behavior Trees. All of the bots are child class objects for the class (AIC_WBGNPCs) that I am calling in the script.

I am trying to manually load the Controllers and Trees in the SubLevel Blueprint, and in the Loader. I am doing both because I am trying to load all of this after the SubLevel has finished streaming in.

(I guess I am a Pants and Suspenders kind of guy. I can clean it up after I get one of them to catch.)

I can see the messaging in the PrintString, so I know that we are getting to that part of the blueprint. I just don't know what the next thing I ought to be looking at is.

I have also bound a OnLevelLoaded event to the BeginPlay event in the level. This event is never gotten to at all and I am not sure why, but that might be outside of the scope of the core "Why are my AIs not loading their Brains?" inquiry.

I have tested these bots in persistent, non-streaming loads and they work fine, so I don't think that the bots themselves are the problem.

Any does anyone have any insight that might help me to get these bots working when streaming?

Thanks in advance for any insight that anyone might be able to provide..!

[trim matrix]

I don't mean to be mean but make your questions shorter

[compact rain]

Sorry. There are always follow up questions so I wanted to get all of the relevant info out of the way.

You are not obliged to read it.

[trim matrix]

Just good idea to keep it shorter for answers ik the pain :/

[compact rain]

That's just how long my questions tend to be. If it was a short and broad question I could probably find an answer on YouTube.

[trim matrix]

Fair enough

[earnest vigil]

Anyone got any ideas on this?

Maybe if there was a way to get how long it took to execute a particular amount of code? I could just use that as the time between points

[cerulean arrow]

Hello all, looking for some guidance on how to organize a set of features in my blueprints.

I'm making a Little Nightmares-inspired game. I'm working on learning how to have pushable objects, objects that can be picked up and thrown, and levers/buttons/etc. that can be interacted with, all if the Left Mouse Button (Grab button) is being held, just like in Little Nightmares. I'm following tutorials for those systems.

I need help knowing how best to organize them. Should I make an "Interaction Component" that contains all the blueprints for the aforementioned things, or should I just drop it all in my player character event graph? I already have a climbing/mantling system that checks if the LMB is held, and I want to avoid these different systems conflicting with each other. Should I have a separate blueprint system that gets called on my characters Event Tick? What is the best way to go about this?

[remote meteor]

is to make use of EnhancedInput's InputMappingContext, so you can switch/override input context based on scenarios

[lusty shard]

Having an issue where Get Viewport Size is returning a larger value than the actual viewport size. Any ideas how to fix?

Red arrow at bottom right represents mouse lcoation when screenshot was taken

[spice viper]

I think there is a viewport scale factor as well?

[spice viper]

I think an interact interface would be good here, can put on any actors needed. Can pass the actor and pawn through the parameters to do what you need.

If you have tons of repeated logic then yeah function libraries and/ or actor component to cut down on duplicated code

[lusty shard]

there actually is.... print stringed it. I never set UI scale so why is it printing as 1.2...?

[marble smelt]

im making a sidescroller game, and im trying to add a feature that when the player clicks on the screen the player jumps towards that direction, but for the life of me i cant figure out how to get the mouse position into a useable vector value

[topaz gazelle]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Game/Player/GetHitResultUnderCursorbyChannel/

[topaz gazelle]

Put an invisible plane that won't collide with the character on the same axis as the character. When the hit result collides with the plane you'll have the appropriate depth and a usable 3d vector.

[marble smelt]

ok thanks

does anyone else just have a thing that sometimes a certain node just cant be found?

[cerulean arrow]

Thanks for the advice, I appreciate it.

[compact rain]

Nav Mesh in the Persistent Level. The answer was to put the Nav Mesh in the Persistent Level.

[cerulean arrow]

How do I get information from one blueprint to another with an interface? I can't find any tutorials that explain this. I used to know how but it's been too long.

I am trying to have a pushable blueprint with a box collider tell my Interaction Component that the player is overlapping. I can't have Inputs and Outputs with the same variable name on a Function in my Interface, so I can only set or get in the respective blueprints. How do I pass this information between the two? It's just a simple "canPush?" boolean.

[spice viper]

The only way to pass info through an interface is all of the parameters. I've done things like "ParameterIn" & "ParameterOut" when I manipulate the value. And yeah an interface with a single function called "IsPushable" that returns boolean is an approach

[cerulean arrow]

So if I have a SetcanPush function and a GetcanPush function in my BPI_Interaction, and their respective input/output is named the exact same, it recognizes it as the same variable?

ie. I have the pushable blueprint call the set function, and then on the custom tick that my Interaction Component has, it can call the Get function and it'll be the value that the pushable set?

EDIT: I just tried this, it does not work.

[cerulean arrow]

If I make a single function like that, I can only give it an input OR an output with the canPush boolean. How do I give it both?

I feel like this shouldn't be this hard to do. I've watched several tutorials and it still doesn't make sense to me.

[cerulean arrow]

Can you show me an example of this? I don't understand what you mean by this.

[golden geyser]

Anyone mimic the editor advanced copy before in blueprints mind sharing whatever insight they have?

[golden geyser]

https://www.youtube.com/watch?v=WH1PIeT0coM

[cerulean arrow]

Thanks for the link, watched it. I'm still completely lost. Here's what I'm trying to do. It won't let me change the value to be true in the begin overlap and false in the end overlap. I'm sorry, my brain works differently and I have no idea what I'm missing here. I feel really stupid.

[spice viper]

Something like this with an "In" & "Out"

Maybe something like this for your use case

[native canopy]

where is the break hit that result from the trace when hit

[cerulean arrow]

I feel like I'm so close to understanding this.

How do I get my receiving actor (in my case, the Interaction Component) to know what the Cube actor set it to?

[brazen pike]

I'm coming to this a bit late so let me know if you've solved it, but it looks like you're not sending the interface to the correct blueprint

[cerulean arrow]

How do I send it to the Component of my player character? I tried using a Message but that doesn't let me set the value in the Pushable object. It's like the only way to do it is to cast, which defeats the whole point of using an Interface. I was told that casting clogs up memory usage.

In pushable, I want it to detect Begin/End overlap with the player capsule. On Begin, set canPush to true. On End, set canPush to false.

I then, in my InteractionComponent, which has a custom event "tick" that is running from a sequence in my player character, I want it to know whether or not it can push, and then I can worry about the actual pushing code, checking if the LMB is held, getting what actor it's pushing, etc.

I'm just trying to set a boolean in my Pushable, and have my players Component recognize what it has been set to.

I've worked with Interfaces before but my mind is completely spaghetti tonight on understanding this, like there's some sort of mental block lol.

[brazen pike]

Do you want to be able to push any static mesh? or just specific blueprints that you have made to be pushable?

[cerulean arrow]

My goal was to make this pushable be a parent object that I can then make blueprints children of, where I can set the mesh and Box collision in them separately (wooden crate, small metal cage, etc.). All box shaped meshes to make it easier.

[brazen pike]

I would recommend flipping your system around. Instead of pushable objects telling the player that they can start pushing, have your player tell objects to start being pushed.

So I'd put the interface on the pushable object instead of the player component. That way, you can have your player detect when they are overlapping with an object. The player can check if the object can be pushed, and if it can then you will tell the object to start being pushed. Then the player is technically always trying to push anything it's colliding with, but it will only do so if the object is marked as "pushable"

The way you'd fix your current system is by doing: get player character -> get component by class -> send interface

but that kind of defeats the point of an interface. Although, it doesn't really seem like an interface would be necessary in your current system. Casts really aren't that expensive if you use them in moderation. Especially if you are casting to your player character since (usually) the player character is always loaded into memory anyway. casts become expensive if you start casting from your player character to random things in your game.

[heavy plinth]

Hey everyone, I'm new here. I'm having trouble integrating a key pickup item with my physics doors I created. If anyone could help that would be great

[brazen pike]

Could you add a little more specifics? Post the details of your problem and how you've tried to fix it, and if anyone can help they'll respond

[heavy plinth]

Cool, I'll try to explain as best I can and provide some photos

Some I'm making this basic physics door

It uses a pivot so the player can run through the door instead of pressing E to interact

I made it so that the regular door is locked unless the variable HasKey is true for the player

In the video you can see how it prints "Door is locked" for the regular door

This is how I was handling the door locking for the regular door. I tried to change it so the physics door also checks for "HasKey" before allowing the OpenDoor event but it still opens even though HasKey is set to false

[brazen pike]

If you disconnect OpenDoor, so that it does nothing: does it still open the door? It looks like it's using physics rather than the timeline

[heavy plinth]

If I disconnect it from where exactly? From the start of the regular door or the physics door?

[brazen pike]

On physics door, at the start of "OpenDoor" disconnect the execution line

[heavy plinth]

Okay yeah I just did that and the door still opened

So it's not doing anything here

[brazen pike]

Okay, go to the door component in the PhysicsDoor blueprint and check if "simulate physics" is true

[heavy plinth]

Yes it's ticked on.

Would I possibly find some way for it to require haskey to enable simulate physics?

[brazen pike]

Great, so set that to false. And instead of the timeline inside of "OpenDoor" set the "simulate physics" in the door to true

[heavy plinth]

Where would I connect it? Would it be after the timeline or should I connect it to the flip flop

[brazen pike]

You don't need any of that now. Connect it straight to OpenDoor and see what happens, make sure simulate is set to true though

This might not work, so don't delete it all yet

[heavy plinth]

I didn't delete it but the door still opens

I turned simulate physics back on in the details panel of the door

[brazen pike]

Does the door open even when you keep simulate physics off?

[heavy plinth]

No, it stays closed then

It's ticked on in the details but off in the blueprint (not sure if that's how it works)

[brazen pike]

Nah flip that the other way around

[heavy plinth]

Now it stays closed too

Let me try setting HasKey to truwe

[brazen pike]

Currently, the door is simulating physics interactions. So obviously when you run into it, it's going to swing open because you've pushed it open. If it isn't simulating physics, then the door is going to stay shut. What I'm suggesting is that the door should start with no physics (when you run into it, it is closed). And only when you have the key and interact with the door, should it start simulating physics and let you walk through it. Almost like you've unlocked the door

[heavy plinth]

Yeah that's a perfect solution

I'm trying to fix my key pickup now lol

I should just set the haskey variable to true by default but I'm not exactly sure how

Nvm I figured it out

I had to open details and click on the variable

Set the default value to true

It works!

So now if the player presses E on the locked door it unlocks and they can walk through it

I need to fix my key pickup right now because I want it to destroy when you walk over it and enable HasKey

I think it's doing something else right now because Destroy Self is never getting activated

[brazen pike]

It'll only destroy if you interact with it right now. Put destroy actor at the end of on component begin overlap

as long as it has given the key

[heavy plinth]

This is what I have now and it doesn't seem to be working

[brazen pike]

if you put a print at the start, does it print?

[heavy plinth]

At the start of begin overlap?

[brazen pike]

yes

[heavy plinth]

Okay I just did that

It printed as soon as I started

[brazen pike]

Did it when also print when you walked into it?

[heavy plinth]

It printed so much I couldnt tell

It looks like it's always being called

[brazen pike]

right well that's not ideal

connect "other actor" to the "in string" of the print and it'll say what its colliding with

But this probably means the collision settings of the box aren't set correctly

[heavy plinth]

Oh yeah it's pretty large

I just downscaled the item

That all worked

It was the box collision

It was massive

Thank you so much I really appreciate it

[cyan trail]

Is there a way to have Niagara that plays till trigger is overlapped that would fade Niagara particles away?

[lunar sleet]

May have to ask #niagara. For the bp side, I only know how to activate and deactivate

[cyan trail]

Will try as well

Anyway if I want to spawn something from actor ( I have plane that has some text on it) should I use add child actor component or spawn actor?

[lunar sleet]

Spawn actor

[cyan trail]

It gives me error that current value of the spawn transform pin is invalid in action behin deferred actor spawn from class and finish spawning actor

[lunar sleet]

Show screenshot

[lunar sleet]

It needs a transform, or at least a location plugged in (you can break the transform pin) so it knows where and how to spawn it

[cyan trail]

It worked 😄

Now to only somehow trigger it

[modest saffron]

Hello, any chance someone can help me out with something using blueprint

I'm extremely new, been using UE5 for 3 days now

[lusty shard]

congrats and welcome to unreal! Whats the problem?

[modest saffron]

hello wolf 🙂

So, I just started again, and am working on making a basic RTS game (real time strategy, top down camera)

[lusty shard]

Can anyone tell me what I need to do to get mouse X/Y event to trigger any time the mouse moves?

[modest saffron]

I've got camera working (once mouse is edge of screen, it moves)

and I'm a little stuck on selection of units

[lusty shard]

haha I am working on this right now actually

[modest saffron]

So, I have Draw Rect (drawing the selection rectangle), and I have Get actors in selection rectangle (selecting the units)

it works perfectly

issue is....

the draw rect is viewport based

and if I'm panning camera as I'm selecting...

it's not anchored to the actual game

but to viewport

get what I'm saying?

[lusty shard]

oh interesting problem

[modest saffron]

seleciton si fine, see

but if I draw same selection while moving camera

downwards

you can see that the rectangle is beign drawn on viewport, not anchored to world

[lusty shard]

id say this is a fine issue to have. Most RTS do not solve this if youre considering your sanity and steam with moving the project forward.. you could be fine with not solving this.

but completely understand wanting to solve this

[modest saffron]

i mean, solving it = learning right 😛

I'm only on day 3, so figure, might as well tackel problems early

[lusty shard]

yea haha

[modest saffron]

as learning experiences

[lusty shard]

Well, this might get expensive but youll probably want to store the rect in world space, but man cant imagine how youd specify which anchor to move, that is attached to mouse.

[modest saffron]

so.... I was playing with these two different things

but can't seem to figure them out, but a possible solution?

[lusty shard]

yea while panning the camera, with arrow keys or edge panning with mouse, youll want to store the world location of the anchors and update them as the camera moves

might need to save the world location as the rect is created

BUT

i am not familiar enough with this mechanic and how unreal supports it, to know what needs to be called out for say if youre mouse is dragging at the bottom right of the square and you cam pan down... youd have to allow that corner and its edges to be free to grow during the cam pan.

are you using enhanced input system for mouse movement?

[modest saffron]

not sure what enhanced input system is

[lusty shard]

it is replacing the old input system

instead of just pressed or released

[modest saffron]

I'm using pressed/released atm

[lusty shard]

supports on going hold and stuff

[modest saffron]

that's what I've used

[lusty shard]

yep thats a safe decision

for learning for now lol

[modest saffron]

hm....

i wonder... if I can use the world position of the camera

since it's moving at the same rate as everything else

and just add/subtract that from starting position

[lusty shard]

interesting

[modest saffron]

just ignoring the z axis

[lusty shard]

you might be ble to add or subtract the offset change of the pan to the rect box ..

yea

[modest saffron]

how does one get world positions?

i've not played with that yet

[modest saffron]

it wouldn't matter if tehre's no "drawn" rectagle, as long as it gets to edge of viewport

and this should work, since it's not limited to viewport

[lusty shard]

i need these lol thanks

[lusty shard]

you might be able to use this

i am not sure exactly how but seems related to the feature youre trying to make

[modest saffron]

maybe?

[lusty shard]

that seems like itll give you the world location of the actual camera..

[modest saffron]

which I want, no?

[lusty shard]

i think so

then you math the difference into the rect

either during the pan or after.. but probably ideal during.

[modest saffron]

i want one initial camera position (on press of the left mouse button)

and one updating one

while holding

and if it's changing, the difference is added/subtracted from rectangle

[lusty shard]

yea

good way of thinking btw

i wouldnt have reached that solution lol

been in unreal for too long

[modest saffron]

welll.... let me see if it works LOL

my brain is literally farting left and right

since I neve rprogrammed before

overloaded on so many topics at once

[lusty shard]

thats unreal haha. its awesome like that

[modest saffron]

hm... x/y is inverted in 3d space right?

compared to 2d space

so x=y, and y=x etc. ?

if we're talking x/y/z axis?

in x/y/z, x = up and down right?

[noble quiver]

I think so yes. In 3D X is forward and backwards, Y is left right. This gets "inverted" in 2D (X = left right. Y = Up Down. It's not quite inverted hence the quotes, but for the sake of calculation, invert 'em)

[noble quiver]

Ok, I've gotten closer to solving the issue. When reopening unreal, said actor component turns into a REINST.

What exactly is this, why did this happen, and how do I fix it (Replaceing the AC is only temporary as stated earlier)?

[jolly hedge]

how do i disable all input from player controller except one?

the point is if the player is "ingame" and he opens the option menu, i want him to be able to press the same button to leave.

Tab = open option menu

Tab again = leave option menu

[lusty shard]

A boolean for "InMenu?" could go in front of all input events

[modest saffron]

working 🙂

that was an annoying fix.... my blueprint is so messy

lol rip....

and that's only for drawing...

[lusty shard]

reroute nodes!

[modest saffron]

gotta do same for the selection one

[lusty shard]

double click a wire

[modest saffron]

yeah, ill do it after

once i get it to work properly lol

[jolly hedge]

is there not a simpler way, feel like thats a bad way to code it up

[lusty shard]

I think the proper way is to have a menu controller and a player controller being seperate.

But you probably dont want to set that up.

Well

Are you setting input to UI only when the ui menus come up??

[modest saffron]

question

this camera sucsk to track, since it's too high up (and distorts view if it's at an angle)

can i make something who's position i can track, at ground level, that always follows camera movement?

[dark drum]

Assuming your using enhanced inputs, you can create an input context mapping for when they have the menu open. This can have the same input action you use to open the menu.

When you open the menu, you remove the default ICM and add the menu one.

[spice smelt]

I know you can't cast to a type known at runtime, but I assume with macros I should be able to specify the type?
I'm trying tomake an utility macrot hat lets you iterate over all components of a given type in scene. However the "get components" node when given a class variable returns a generic scene component because it'd do a runtime cast.
Whereas I kind of want it to be a macro wildcard, if possible

essentially the returned component should be of the type specified in input, and it won't be a variable, it'll be a constant specified on macro call

or maybe i'm too much wishfully thinking that bp macros would work like c++ templates...

[dark drum]

What are you wanting to use this for?

[dark drum]

So your wanting the camera location but at ground level?

[dark drum]

Is the component from a plugin?

[spice smelt]

artist coworkers who want to turn on/off a different setting on everything every couple days