Rendering overlay on mob effects | latcord | Page 1

waxen bay Sep 26, 2025, 2:08 PM

#

Im trying to render screen overlays on mob effects, is it possible to do so?
i tried doing it like so:

ClientEvents.tick(event => {
    if (event.client.player.hasEffect("betterasfour:blood_gigante")){
        event.client.screen.renderTransparentBackground($GuiGraphics.MAX_GUI_Z)
    }
})```
but it can't render background of null now, 2 main things i wanna know are:
1. How do i make it not null
2. What are the GuiGraphics types and how do i get them

wicked yokeBOT Sep 26, 2025, 2:08 PM

#

Once your ticket has been resolved, please close it with </ticket close:1054771505520717835> command!

waxen bay Sep 26, 2025, 3:20 PM

#

even a vignette would suffice

hot niche Sep 27, 2025, 12:46 AM

#

its null because if you dont have a screen up then your minecraft client's screen will be null.

#

so going through the screen is not the way unless you somehow register a dummy screen which I dont think is possible through current kubejs. what you might need to do is make a shader which is a whole 'nother process but is doable

#

for that you can check out visualjs which lets you do this

#

ah you know what, its only on 1.20.1 rn https://www.curseforge.com/minecraft/mc-mods/visualjs

hot niche Sep 27, 2025, 1:09 AM

#

so you may have to look into Overlays or wait for someone else who may have a better idea about it

waxen bay Sep 27, 2025, 6:34 AM

#

hot niche so you may have to look into Overlays or wait for someone else who may have a be...

Ye so i tried looking into overlays but no matter what i tried it didn't work, nothing leads me to picking a texture of the overlay

#

Perhaps i need to register an overlay but i dont think thats a thing either

oblique owl Sep 27, 2025, 8:41 PM

#

You definitely could do this with a shader, but i have no idea how to.

Instead I'd recommend registering a GuiLayer instead, it's what is used to render the hotbar, health and armor points.
-# StartupScript

let $RegisterGuiLayersEvent = Java.loadClass("net.neoforged.neoforge.client.event.RegisterGuiLayersEvent");
const OVERLAY_TEXTURE = ID.kjs("example_sprite")

NativeEvents.onEvent($RegisterGuiLayersEvent, event => {
    event.registerAboveAll(
        ID.kjs("custom_screen_overlay"), 
        (gui, delta) => global.drawCustomScreenOverlay(gui, delta)
    )
})

/**
 * @param {$GuiGraphics_} guiGraphics 
 * @param {$DeltaTracker_} deltaTracker 
 */
global.drawCustomScreenOverlay = (guiGraphics, deltaTracker) => {
    if (!Client.player || !Client.player.hasEffect("minecraft:poison")) return
    guiGraphics.blitSprite(OVERLAY_TEXTURE, 0, 0, guiGraphics.guiWidth(), guiGraphics.guiHeight())
}

Your texture has to be assets/kubejs/textures/gui/sprites/example_sprite.png in this case (see OVERLAY_TEXTURE declaration; the textures/gui/sprites/ part is required by mc)
Note that you might not want to use .registerAboveAll() because it draws over the hotbar. If so, just register above/below one of the vanilla layers. They render in this order: ```
camera_overlays, crosshair, hotbar, jump_meter, experience_bar, player_health, armor_level, food_level, vehicle_health, air_level, selected_item_name, spectator_tooltip, experience_level, effects, boss_overlay, sleep_overlay, demo_overlay, debug_overlay, scoreboard_sidebar, overlay_message, title, chat, tab_list, subtitle_overlay, saving_indicator

waxen bay Sep 28, 2025, 3:09 AM

#

Wow ty for the effort in the answer i will try it out when i can

waxen bay Sep 28, 2025, 2:08 PM

#

Hmm

#

im getting this error

#

[17:07:52] [ERROR] ! ScriptFile.java#71: java.lang.UnsupportedOperationException
[17:07:52] [ERROR] ! java.lang.UnsupportedOperationException

#

@oblique owl Is this for 1.21.1 neoforge?

#

I mean it should be considering the script

oblique owl Sep 28, 2025, 2:11 PM

#

It is, yeah

#

that is odd

waxen bay Sep 28, 2025, 2:12 PM

#

i only changed the declaration and the effect

hot niche Sep 28, 2025, 2:12 PM

#

whats line 71?

waxen bay Sep 28, 2025, 2:12 PM

#

i honestly have no idea

#

it doesn;t even get there

#

const OVERLAY_TEXTURE = ID.kjs("ice_cracks")

NativeEvents.onEvent($RegisterGuiLayersEvent, event => {
    event.registerAboveAll(
        ID.kjs("custom_screen_overlay"), 
        (gui, delta) => global.drawCustomScreenOverlay(gui, delta)
    )
})

/**
 * @param {$GuiGraphics_} guiGraphics 
 * @param {$DeltaTracker_} deltaTracker 
 */
global.drawCustomScreenOverlay = (guiGraphics, deltaTracker) => {
    if (!Client.player || !Client.player.hasEffect("betterasfour:blood_gigante")) return
    guiGraphics.blitSprite(OVERLAY_TEXTURE, 0, 0, guiGraphics.guiWidth(), guiGraphics.guiHeight())
}```

#

18 lines

hot niche Sep 28, 2025, 2:13 PM

#

side note: this js if (!Client.player || !Client.player.hasEffect("minecraft:poison")) return
should be like this, surrounding both boolean checks in parenthases js if ((!Client.player || !Client.player.hasEffect("minecraft:poison"))) return
because of rhino

#

otherwise it will only ever check the first boolean and never the second even if the first passes

oblique owl Sep 28, 2025, 2:15 PM

#

hot niche otherwise it will only ever check the first boolean and never the second even if...

That is fine in this case, !Client.player is a null check in case this somehow gets ran on the main menu/a death screen or something. (player doesn't exist => can't call .hasEffect on undefined)

#

it might not even be necessary, i copied that from another script of mine where i actually ran into that issue

hot niche Sep 28, 2025, 2:15 PM

#

yeah in this case its fine but just for future references

#

i should really set up a gnome macro for it because a lot of people do this and wonder why their return statement isnt working

waxen bay Sep 28, 2025, 2:16 PM

#

xd

#

Im guilty of that

hot niche Sep 28, 2025, 2:16 PM

#

lol i used to too

oblique owl Sep 28, 2025, 2:16 PM

#

Line 71 in question: https://github.com/KubeJS-Mods/KubeJS/blob/c19ac4ccb95bc48e6b772be7f9e5a15612a1d857/src/main/java/dev/latvian/mods/kubejs/script/ScriptFile.java#L71

GitHub

KubeJS/src/main/java/dev/latvian/mods/kubejs/script/ScriptFile.java...

Contribute to KubeJS-Mods/KubeJS development by creating an account on GitHub.

#

what the actual fuck

hot niche Sep 28, 2025, 2:17 PM

#

hmmm

#

what even

#

is this sorcery

waxen bay Sep 28, 2025, 2:17 PM

#

Wait what

#

PigTurtle have you tried this on your own installation before?

#

I mean i bet you did but this issue seems like it should be universal

hot niche Sep 28, 2025, 2:19 PM

#

wait did you put this in startup or client scripts

waxen bay Sep 28, 2025, 2:20 PM

#

What was i supposed to...

#

where*

oblique owl Sep 28, 2025, 2:20 PM

#

waxen bay PigTurtle have you tried this on your own installation before?

yes and it is running just fine with the exact code example i sent

waxen bay Sep 28, 2025, 2:20 PM

#

Is it a client or a startup script -./-

#

am i being dumb

oblique owl Sep 28, 2025, 2:20 PM

#

It's startup

waxen bay Sep 28, 2025, 2:20 PM

#

Ffs i should have listened to my guts

#

since it's registry

oblique owl Sep 28, 2025, 2:21 PM

#

All NativeEvents calls are Startup

hot niche Sep 28, 2025, 2:21 PM

#

lol

waxen bay Sep 28, 2025, 2:21 PM

#

Hmm

hot niche Sep 28, 2025, 2:21 PM

#

cause that would only happen if it was in client scripts

waxen bay Sep 28, 2025, 2:21 PM

#

I have never used NativeEvents before

hot niche Sep 28, 2025, 2:21 PM

#

native events are useable in other scripts i believe but this specific event should be in startup

waxen bay Sep 28, 2025, 2:21 PM

#

they seems like they'd be the most usefull

hot niche Sep 28, 2025, 2:22 PM

#

cause i think its some registry

oblique owl Sep 28, 2025, 2:22 PM

#

but still the error being "java.lang.UnsupportedOperationException" is confusing me a lot
like is the problem that kube is modifying a private final Set<String>? and if so, wouldn't that error get thrown for literally every script?

waxen bay Sep 28, 2025, 2:23 PM

#

o dam i just got attacked with the no textures screen

#

xD

#

I guess i did something wrong

#

It's definitely working just that im blind

hot niche Sep 28, 2025, 2:24 PM

#

you have the texture in the correct folder?

waxen bay Sep 28, 2025, 2:24 PM

#

Yep

#

Hmm

#

Wait

#

Does it matter what spacename?

#

Does it have to be kubeJS

#

ye i bet it does

hot niche Sep 28, 2025, 2:25 PM

#

oblique owl but still the error being "java.lang.UnsupportedOperationException" is confusing...

it happens when kubejs tries reloading unreloadable events and also tries to modify an immutable list, likely script imports

waxen bay Sep 28, 2025, 2:27 PM

#

hmm

#

i still got it wrong

oblique owl Sep 28, 2025, 2:27 PM

#

waxen bay Does it have to be kubeJS

namespace depends on the ResourceLocation, you can either use ID.kjs("path") or ID.of("namespace", "path"). Wouldn't be surprised if there was also some wrapper to convert "namespace:path" strings to ResourceLocations, but i personally prefer using the kjs shorthands

waxen bay Sep 28, 2025, 2:28 PM

#

curseforge\minecraft\Instances\True adventure neoforge 1.21.1\kubejs\assets\textures\gui\sprites\ice_cracks.png"

#

this is my current directory

#

o wait i seems correct or am i trippin

hot niche Sep 28, 2025, 2:30 PM

#

whats the id youre going with rn

waxen bay Sep 28, 2025, 2:30 PM

#

ice_cracks

hot niche Sep 28, 2025, 2:30 PM

#

hmm

waxen bay Sep 28, 2025, 2:30 PM

#

do i need to include .png?

hot niche Sep 28, 2025, 2:30 PM

#

no

waxen bay Sep 28, 2025, 2:30 PM

#

then something is off

hot niche Sep 28, 2025, 2:31 PM

#

yeah youre doign it wrong

waxen bay Sep 28, 2025, 2:31 PM

#

i needed to change the other .id?

hot niche Sep 28, 2025, 2:31 PM

#

should be assets/kubejs/textures not assets/textures

waxen bay Sep 28, 2025, 2:31 PM

#

O i see

hot niche Sep 28, 2025, 2:32 PM

#

in your defence even i didnt see it til now lol

waxen bay Sep 28, 2025, 2:34 PM

#

it's working now but ye i need to mess around with this cause now im blind again

#

at least it's the texture

hot niche Sep 28, 2025, 2:35 PM

#

lol nice

waxen bay Sep 28, 2025, 2:37 PM

#

are the 0,0 alpha controllers?

#

this should honestly be posted on player showcase i feel like many would find this helpful

#

i mean

hot niche Sep 28, 2025, 2:38 PM

#

i was just about to say that cause i also might use it somewhere

waxen bay Sep 28, 2025, 2:38 PM

#

example scripts

#

I want pig to post it, i mean they know it better and it's theirs >_>

#

btw Lio im putting your gorgeous addon to good use ty for that

hot niche Sep 28, 2025, 2:42 PM

#

entityjs?

waxen bay Sep 28, 2025, 2:42 PM

#

Yes

hot niche Sep 28, 2025, 2:42 PM

#

nice

waxen bay Sep 28, 2025, 2:42 PM

#

Would love to showcase some of its many uses so other would get ideas

oblique owl Sep 28, 2025, 3:02 PM

#

waxen bay I want pig to post it, i mean they know it better and it's theirs >_>

I'm going to soon, I went and made a WAILA clone using just this system.

#

In the process i seem to have broken the search function in my creative menu though, i really hope it isn't this script lol

waxen bay Sep 28, 2025, 6:30 PM

#

oblique owl In the process i seem to have broken the search function in my creative menu tho...

hmm i dont quiet get how to get it above/below a specific thing with the registerBelow(),registerAbove() methods, js NativeEvents.onEvent($RegisterGuiLayersEvent, event => { event.registerBelow( ID.kjs("fire_mask"), "crosshair", (gui, delta) => global.belowCrosshairFire(gui, delta) ) })

#

Now i added the crosshair in the middle only because probe showed a difference between belowAll() and this method on the 2nd value

#

So i assumed it goes there

#

nevermind i got it

#

probeJS is just acting weird

#

was flipped

tawny notch Sep 29, 2025, 10:03 AM

#

On 1.21.1, you can only set globals on Startup scripts (you get UnsupportedOperation if you dont)

#

Also, on 1.21.1 you can use NativeEvents on any script side

#

not just startup

hot niche Sep 29, 2025, 2:18 PM

#

ah that makes sense then

hot niche Sep 29, 2025, 2:18 PM

#

tawny notch On 1.21.1, you can only set globals on Startup scripts (you get UnsupportedOpera...

thats good to know for future reference, I was honestly thinking about pining you here to ask your opinion on it but didnt want to bother you pepelaugh

waxen bay Sep 30, 2025, 7:47 AM

#

If i were to want to animate the overlay would it be wise to do it with schedule functions or is there a better way to do it via kubeJS?

waxen bay Sep 30, 2025, 8:07 AM

#

I looked into json animation but im not sure how to register a json overlay in kubejs

oblique owl Sep 30, 2025, 12:19 PM

#

waxen bay If i were to want to animate the overlay would it be wise to do it with schedule...

if its a simple frame-by-frame animation of your texture, try seeing if the vanilla file.png.mcmeta animation method works

#

if not, the second argument to the GuiLayer callback is something called a DeltaTracker. You'd want to use that to calculate what you want drawn.

waxen bay Sep 30, 2025, 8:45 PM

#

hmm ye normal mcmeta didnt seem to work unless i did it wrong which it may just be that way

waxen bay Sep 30, 2025, 9:32 PM

#

oblique owl if not, the second argument to the GuiLayer callback is something called a Delta...

ook so i read about the deltaTicks and i understood it is ticks from last frame, but how would you use that in practice? I tried using it like tickCount and i tried using them as conditions like == <float> but it doesn't seem to work

waxen bay Oct 1, 2025, 8:44 AM

#

i also decided to console.log deltaTracker.getGameTimeDeltaTicks() and i get these results for some reason so i may not be understand this after all ``` 0.34
[11:42:10] [INFO] 0.06
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16
[11:42:10] [INFO] 0.18
[11:42:10] [INFO] 0.16

I also tried delta tracking the png with the mcmeta file but i get an error texture anyways

waxen bay Oct 1, 2025, 9:05 AM

#

hmm nevermind the original method works

#

I just had the wrong file?

#

wrong png i guess

waxen bay Oct 1, 2025, 9:06 AM

#

oblique owl if its a simple frame-by-frame animation of your texture, try seeing if the vani...

Just in case anyone is interested this method does work i had a png that may have been too big previously

waxen bay Oct 1, 2025, 9:51 AM

#

Now i just need to figure out how to do the gui positioning dynamic with the gui scale

oblique owl Oct 1, 2025, 12:17 PM

#

waxen bay i also decided to console.log deltaTracker.getGameTimeDeltaTicks() and i get the...

Sorry about that, i was wrongly expecting the DeltaTracker to provide some way to get the actual tick count too instead of just the delta ("tick" time since the last frame).
You'd probably need to use some variable counting up then or just have your transition refresh on full game ticks with Client.level.time

Good thing you managed to get things working anyway though

waxen bay Oct 1, 2025, 3:07 PM

#

Ye now im just trying to make the renderable coords keep the same positon with the gui scaling

oblique owl Oct 1, 2025, 3:22 PM

#

Does the 0 -> width (100%) not work for you? in almost all other cases you would probably want to actually have gui scaling applied, not to disable it

#

but i suppose you can probably

const pose = guiGraphics.pose()
// enforce fixed scale
pose.pushPose()
const f = 1 / Client.options.guiScale().get()
guiGraphics.pose().scale(f, f, f)

// render calls

pose.popPose()

waxen bay Oct 1, 2025, 5:03 PM

#

oblique owl Does the `0 -> width` (100%) not work for you? in almost all other cases you wou...

Ye well my case is alittle unique since it's not a full screen layer

#

So what i was missing was the Client.options i didnt know that was a thing

#

I will try this when i can

waxen bay Oct 1, 2025, 5:52 PM

#

oblique owl Does the `0 -> width` (100%) not work for you? in almost all other cases you wou...

I feel like you may have misunderstood me i do want gui scaling enabled, i have small components placed in very specific coordinates on the screen my issue is when the player changes gui scale in the settings it completely messes with the placement

oblique owl Oct 1, 2025, 5:55 PM

#

Are you asking for how to anchor what you are drawing to a specific location then?

waxen bay Oct 1, 2025, 5:55 PM

#

Yes

#

I read on the neoforged docs that you can use init method

#

But in kjs it's a bit different

oblique owl Oct 1, 2025, 5:56 PM

#

you'd usually just use some_factor * guiGraphics.guiWidth() in that case, draw from that to it + n and you have something that always starts at the same spot on the screen but is a different size based on gui scale

waxen bay Oct 1, 2025, 5:57 PM

#

Ye i did that in the beginning it's very confusing so i thought there must be a better way

#

But i guess it is one of the best ways

#

This whole support thread basically turned into a tutorial

#

Should def be a thread in the example scripts

#

PigTurtle do you have any like projects you made with kjs? You seem very knowledgeable

oblique owl Oct 1, 2025, 6:01 PM

#

One Modpack, its been a really long while though

waxen bay Oct 1, 2025, 6:02 PM

#

Hmm can i get the name?

oblique owl Oct 1, 2025, 6:02 PM

#

I just recently started reading source code a lot more, kube is basically just more restricted java modding

waxen bay Oct 1, 2025, 6:02 PM

#

Ye i realized that more now thanks to you

oblique owl Oct 1, 2025, 6:03 PM

#

waxen bay Hmm can i get the name?

https://www.curseforge.com/minecraft/modpacks/create-arcane-engineering
Can't say i recommend looking at the code for learning in the slightest even

#

but it exists

waxen bay Oct 1, 2025, 6:03 PM

#

That wasnt my plan anyway

#

Wtf

#

XD

#

The pfp and the name

#

Craz

oblique owl Oct 1, 2025, 6:04 PM

#

not me lol, friend i've made the modpack with

#

gets worse when you look at his current discord name

waxen bay Oct 1, 2025, 6:05 PM

#

I actually knew of this modpack already

#

Prety nice

#

Im also making a modpack but my ideas dont allow me to finish it or even come close

#

hmmm

oblique owl Oct 1, 2025, 6:37 PM

#

Well - We haven't updated CAE in about two years now. It can feel like a huge commitment.
if you do actually want to finish your modpack, I'd recommend writing down notes for what you are planning in something like a Todo list, and then picking out a point and actually finishing it before moving on to a different idea
That way you know you're getting something done and you can force yourself to not get (too) distracted

waxen bay Oct 1, 2025, 6:59 PM

#

oblique owl Well - We haven't updated CAE in about two years now. It can feel like a huge co...

I do have a list the problem is im a big fan of complex mechanics so everytime i do something new and learn from it, that something i just "finished" doing will get an upgrade considering i now have new options available and since i keep on adding to the mechanics and content i keep forcing myself to reshape a lot of what i did. For example i learnt of the possibility to register overlays via kjs thanks to you so that drove me back to a combat class i created like 1.5 months ago

#

My target gameplay is extremely out of my league right now, i started learning coding in general when i began about 3 months ago

#

But i should definitely learn to finish something properly first before moving on to the next

waxen bay Oct 2, 2025, 8:25 PM

#

@oblique owl so i just tried this out but apparently the guiWidth and guiHeight methods do not give you actual integers

#

[INFO] int guiWidth() [dev.latvian.mods.rhino.NativeJavaMethod]
[23:24:48] [INFO] int guiHeight() [dev.latvian.mods.rhino.NativeJavaMethod]

#

So it doesn't seem to work in positioning

waxen bay Oct 2, 2025, 8:45 PM

#

but i found a way to do it >_>

#

(1 / Client.options.guiScale().value) * 300, (1 / Client.options.guiScale().value) * 300

#

this for example

waxen bay Oct 2, 2025, 9:17 PM

#

well technically you can do guiWidth().valueOf() to get a number but it's the same as using guiScale but even more confusing, since you get a big number

#

this also works as a scaling for the width and height of the png

#

(1 / Client.options.guiScale().value) * 128

#

If for example i want it to be 64x64 on the 2x guiScale

#

It will stay the same size for all scales this way

#

lmao but when it's put into auto gui it crashes because it is considered infinity -.-

#

well it's because auto gui scale counts as 0 and 1 / 0 is infinity but i have no idea how to deal with this

oblique owl Oct 4, 2025, 9:28 PM

#

been a few days but I took another look and you should be able to get the scale from Client.window.guiScale, the GuiGraphics class gets it that way whenever it needs it.

#Rendering overlay on mob effects